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Mechanism of Acid Activation of Magnesic Palygorskite
- F. Gonzalez, C. Pesquera, I. Benito, S. Mendioroz, J. A. Pajares
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- Journal:
- Clays and Clay Minerals / Volume 37 / Issue 3 / June 1989
- Published online by Cambridge University Press:
- 02 April 2024, pp. 258-262
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This paper compares the texture of palygorskite after acid leaching with that of the product after extraction silica is removed. These effects were evaluated on the basis of nitrogen adsorption-desorption and mercury penetration porosimetry. Acid leaching at reflux temperature with 2 N HCl resulted in an increase in surface area from 138 to 399 m2/g, due to a partial (~50%) dissolution of the octahedral sheet and the creation of microporosity. This microporosity disappeared if the silica generated by the leaching was removed. The surface area also decreased from 399 to 214 m2/g, and the pore volume decreased from 0.538 to 0.507 cm3/g. The microporosity must therefore have been due to texture development in the generated silica.
Metrology for sub-Rayleigh-length target positioning in ~1022 W/cm2 laser-plasma experiments
- E.A. Vishnyakov, A. Sagisaka, K. Ogura, T.Zh. Esirkepov, B. Gonzalez Izquierdo, C. Armstrong, T.A. Pikuz, S.A. Pikuz, W. Yan, T.M. Jeong, S. Singh, P. Hadjisolomou, O. Finke, G.M. Grittani, M. Nevrkla, C.M. Lazzarini, A. Velyhan, T. Hayakawa, Y. Fukuda, J.K. Koga, M. Ishino, Ko. Kondo, Y. Miyasaka, A. Kon, M. Nishikino, Y.V. Nosach, D. Khikhlukha, I.P. Tsygvintsev, D. Kumar, J. Nejdl, D. Margarone, P.V. Sasorov, S. Weber, M. Kando, H. Kiriyama, Y. Kato, G. Korn, K. Kondo, S.V. Bulanov, T. Kawachi, A.S. Pirozhkov
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- High Power Laser Science and Engineering / Accepted manuscript
- Published online by Cambridge University Press:
- 05 March 2024, pp. 1-58
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Zeolites in Pyroclastic Deposits in Southeastern Tenerife (Canary Islands)
- J. E. Garcia Hernandez, J. S. Notario del Pino, M. M. Gonzalez Martin, F. Hernan Reguera, J. A. Rodriguez Losada
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- Journal:
- Clays and Clay Minerals / Volume 41 / Issue 5 / October 1993
- Published online by Cambridge University Press:
- 28 February 2024, pp. 521-526
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The chemical and the mineralogical composition of a group of pumiceous tuffs associated with recent salic volcanic episodes from Tenerife (Canary Islands) have been studied. The investigation focused on the two main types of pyroclastic deposits of the zone: ash-flows and ash-falls. The samples can be classified chemically as trachytic and phonolitic rocks with an intermediate silica content and a high percentage of alkali cations (Na+ and K+). The mineralogical composition, determined by X-ray diffraction, scanning electron microscopy, and optical microscopy, shows the occurrence of zeolites (mainly phillipsite, with lesser chabazite and analcime), associated with the parent glass. K-feldspar (sanidine) and calcite are accessory minerals. Zeolites are significantly more abundant in the ash-flow deposits. Zeolite formation by hydrothermal weathering in closed-system conditions varies according to the nature and the origin of the pyroclastic deposits. Tenerife phillipsites differ from typical diagenetic, lacustrine, and deep-sea phillipsites, both in chemical and mineralogical features. Alkali cations exceed divalent cations in the unit-cell that, assuming a monoclinic symmetry, has the following parameters: a = 8.46–10.55 Å, b = 14.21–14.40 Å, c = 7.80–8.70 Å, and β = 105°–110°.
Somatic multicomorbidity and disability in patients with psychiatric disorders in comparison to the general population: a quasi-epidemiological investigation in 54,826 subjects from 40 countries (COMET-G study)
- Konstantinos N. Fountoulakis, Grigorios N. Karakatsoulis, Seri Abraham, Kristina Adorjan, Helal Uddin Ahmed, Renato D. Alarcón, Kiyomi Arai, Sani Salihu Auwal, Michael Berk, Sarah Bjedov, Julio Bobes, Teresa Bobes-Bascaran, Julie Bourgin-Duchesnay, Cristina Ana Bredicean, Laurynas Bukelskis, Akaki Burkadze, Indira Indiana Cabrera Abud, Ruby Castilla-Puentes, Marcelo Cetkovich, Hector Colon-Rivera, Ricardo Corral, Carla Cortez-Vergara, Piirika Crepin, Domenico De Berardis, Sergio Zamora Delgado, David De Lucena, Avinash De Sousa, Ramona Di Stefano, Seetal Dodd, Livia Priyanka Elek, Anna Elissa, Berta Erdelyi-Hamza, Gamze Erzin, Martin J. Etchevers, Peter Falkai, Adriana Farcas, Ilya Fedotov, Viktoriia Filatova, Nikolaos K. Fountoulakis, Iryna Frankova, Francesco Franza, Pedro Frias, Tatiana Galako, Cristian J. Garay, Leticia Garcia-Álvarez, Maria Paz García-Portilla, Xenia Gonda, Tomasz M. Gondek, Daniela Morera González, Hilary Gould, Paolo Grandinetti, Arturo Grau, Violeta Groudeva, Michal Hagin, Takayuki Harada, Tasdik M. Hasan, Nurul Azreen Hashim, Jan Hilbig, Sahadat Hossain, Rossitza Iakimova, Mona Ibrahim, Felicia Iftene, Yulia Ignatenko, Matias Irarrazaval, Zaliha Ismail, Jamila Ismayilova, Asaf Jakobs, Miro Jakovljević, Nenad Jakšić, Afzal Javed, Helin Yilmaz Kafali, Sagar Karia, Olga Kazakova, Doaa Khalifa, Olena Khaustova, Steve Koh, Svetlana Kopishinskaia, Korneliia Kosenko, Sotirios A. Koupidis, Illes Kovacs, Barbara Kulig, Alisha Lalljee, Justine Liewig, Abdul Majid, Evgeniia Malashonkova, Khamelia Malik, Najma Iqbal Malik, Gulay Mammadzada, Bilvesh Mandalia, Donatella Marazziti, Darko Marčinko, Stephanie Martinez, Eimantas Matiekus, Gabriela Mejia, Roha Saeed Memon, Xarah Elenne Meza Martínez, Dalia Mickevičiūtė, Roumen Milev, Muftau Mohammed, Alejandro Molina-López, Petr Morozov, Nuru Suleiman Muhammad, Filip Mustač, Mika S. Naor, Amira Nassieb, Alvydas Navickas, Tarek Okasha, Milena Pandova, Anca-Livia Panfil, Liliya Panteleeva, Ion Papava, Mikaella E. Patsali, Alexey Pavlichenko, Bojana Pejuskovic, Mariana Pinto Da Costa, Mikhail Popkov, Dina Popovic, Nor Jannah Nasution Raduan, Francisca Vargas Ramírez, Elmars Rancans, Salmi Razali, Federico Rebok, Anna Rewekant, Elena Ninoska Reyes Flores, María Teresa Rivera-Encinas, Pilar Saiz, Manuel Sánchez de Carmona, David Saucedo Martínez, Jo Anne Saw, Görkem Saygili, Patricia Schneidereit, Bhumika Shah, Tomohiro Shirasaka, Ketevan Silagadze, Satti Sitanggang, Oleg Skugarevsky, Anna Spikina, Sridevi Sira Mahalingappa, Maria Stoyanova, Anna Szczegielniak, Simona Claudia Tamasan, Giuseppe Tavormina, Maurilio Giuseppe Maria Tavormina, Pavlos N. Theodorakis, Mauricio Tohen, Eva Maria Tsapakis, Dina Tukhvatullina, Irfan Ullah, Ratnaraj Vaidya, Johann M. Vega-Dienstmaier, Jelena Vrublevska, Olivera Vukovic, Olga Vysotska, Natalia Widiasih, Anna Yashikhina, Panagiotis E. Prezerakos, Daria Smirnova
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- Journal:
- CNS Spectrums / Volume 29 / Issue 2 / April 2024
- Published online by Cambridge University Press:
- 25 January 2024, pp. 126-149
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Background
The prevalence of medical illnesses is high among patients with psychiatric disorders. The current study aimed to investigate multi-comorbidity in patients with psychiatric disorders in comparison to the general population. Secondary aims were to investigate factors associated with metabolic syndrome and treatment appropriateness of mental disorders.
MethodsThe sample included 54,826 subjects (64.73% females; 34.15% males; 1.11% nonbinary gender) from 40 countries (COMET-G study). The analysis was based on the registration of previous history that could serve as a fair approximation for the lifetime prevalence of various medical conditions.
ResultsAbout 24.5% reported a history of somatic and 26.14% of mental disorders. Mental disorders were by far the most prevalent group of medical conditions. Comorbidity of any somatic with any mental disorder was reported by 8.21%. One-third to almost two-thirds of somatic patients were also suffering from a mental disorder depending on the severity and multicomorbidity. Bipolar and psychotic patients and to a lesser extent depressives, manifested an earlier (15–20 years) manifestation of somatic multicomorbidity, severe disability, and probably earlier death. The overwhelming majority of patients with mental disorders were not receiving treatment or were being treated in a way that was not recommended. Antipsychotics and antidepressants were not related to the development of metabolic syndrome.
ConclusionsThe finding that one-third to almost two-thirds of somatic patients also suffered from a mental disorder strongly suggests that psychiatry is the field with the most trans-specialty and interdisciplinary value and application points to the importance of teaching psychiatry and mental health in medical schools and also to the need for more technocratically oriented training of psychiatric residents.
10 Performance between bilinguals and monolinguals: Anxiety as a moderating effect across executive functioning and processing speed in a multicultural cohort with ADHD symptoms
- Christopher Gonzalez, Demy Alfonso, Brian M Cerny, Karen S Basurto, John-Christopher A Finley, Gabriel P Ovsiew, Phoebe Ka Yin Tse, Zachary J Resch, Kyle J Jennette, Jason R Soble
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- Journal:
- Journal of the International Neuropsychological Society / Volume 29 / Issue s1 / November 2023
- Published online by Cambridge University Press:
- 21 December 2023, pp. 425-426
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Objective:
Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder commonly associated with relative impairments on processing speed, working memory, and/or executive functioning. Anxiety commonly co-occurs with ADHD and may also adversely affect these cognitive functions. Additionally, language status (i.e., monolingualism vs bilingualism) has been shown to affect select cognitive domains across an individual’s lifespan. Yet, few studies have examined the potential effects of the interaction between anxiety and language status on various cognitive domains among people with ADHD. Thus, the current study investigated the effects of the interaction of anxiety and language status on processing speed, working memory, and executive functioning among monolingual and bilingual individuals with ADHD.
Participants and Methods:The sample comprised of 407 consecutive adult patients diagnosed with ADHD. When asked about their language status, 67% reported to be monolingual (English). The Mean age of individuals was 27.93 (SD = 6.83), mean education of 15.8 years (SD = 2.10), 60% female, racially diverse with 49% Non-Hispanic White, 22% Non-Hispanic Black, 13% Hispanic/Latinx, 9% Asian/Pacific Islander, and 6% other race/ethnicity. Processing speed, working memory, and executive function were measured via the Wechsler Adult Intelligence Scale-Fourth Edition Processing Speed Index, Working Memory Index, and Trail Making Test B, respectively. Anxiety was measured via the Beck Anxiety Inventory (BAI). Three separate linear regression models examined the interaction between anxiety (moderator) and cognition (processing speed, working memory, and executive function) on language. Models included sex/gender and education as covariates with Processing Speed Index and Working Memory Index as the outcomes. Age, sex/gender, and education were used as covariates when Trail Making Test B was the outcome.
Results:Monolingual and bilingual patients differed in mean age (p < .05) but did not differ in level of anxiety, education, or sex/gender. Overall, anxiety was not associated with processing speed, working memory, and executive function. However, the interaction between anxiety and language status was significantly associated with processing speed (ß = -0.37, p < .05), and executive functioning (ß = 0.82, p < .05). No associations were found when anxiety was added as a moderator for the associations between language and working memory.
Conclusions:This study found that anxiety moderated the relationship between language status and select cognitive domains (i.e., processing speed and executive functioning) among individuals with ADHD. Specifically, anxiety had a greater association on processing speed and executive functioning performance for bilinguals rather than monolinguals. Future detailed studies are needed to better understand how anxiety modifies the relationship between language and cognitive performance outcomes over time amongst a linguistically diverse sample.
76 Differential Performance in Visual Learning and Retrieval in a Validity Controlled Chronic Pain Sample
- Phoebe Ka Yin Tse, Christopher Gonzalez, Karen S Basurto, Zachary J Resch, Jason R Soble, Kyle J Jennette
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- Journal of the International Neuropsychological Society / Volume 29 / Issue s1 / November 2023
- Published online by Cambridge University Press:
- 21 December 2023, pp. 69-70
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Objective:
Individuals with chronic pain frequently report diminished cognitive functioning. Prior cross-sectional studies have demonstrated strong associations between chronic pain and neurocognitive impairment, most notably in memory, attention, processing speed, and executive functioning. However, there is a paucity of research evaluating visual learning and memory abilities in this population. Further, while current practice standards advocate for the use of performance validity tests (PVTs) to assess the credibility of neuropsychological test performance, they have infrequently been incorporated into studies examining chronic pain samples, despite a higher observed rate of noncredible performance in the literature. This study aimed to compare visual learning and memory performance between a mixed neuropsychiatric (MNP) group and a chronic pain group in a validity-controlled sample.
Participants and Methods:The study consisted of 371 adults referred for outpatient neuropsychological evaluation. Between groups, various PVTs were administered, which included, at minimum, one freestanding and four embedded PVTs. All patients were administered the Brief Visuospatial Memory Test-Revised (BVMT-R) as part of a comprehensive neuropsychological evaluation. Only patients classified as valid performers (<1 PVT fails; n=295) were included in the analyses (Pain: n=109; MNP: n=186). The overall sample was 69% female and racially diverse (22% non-Hispanic Black, 43% non-Hispanic White, 30% Hispanic, 3% Asian/Pacific Islander, and 2% other race/ethnicities), with a mean age of 46.8 (SD=14.8) and mean education of 13.7 years (SD=2.7). Independent samples t-tests were performed to investigate the differences in visual learning and memory abilities between the chronic pain and MNP groups.
Results:Chi-square analyses revealed significant differences between the pain and MNP groups on race, with more non-Hispanic White and Hispanic patients represented in the MNP group. There were also modest group differences in age and education. For the chronic pain group, patients scored lower on both BVMT-R Total T-Score (mean difference = 9.65T, p<.001) and BVMT Delayed Recall T-Score (mean difference = 8.97T, p<.001). The effect size was robust for both for Total T-Score (d = 0.682) and Delayed Recall T-Score (d = 0.632). In contrast, the difference in BVMT Recognition Discriminability was not statistically significant.
Conclusions:This study demonstrated significant differences in performance between mixed neuropsychiatric and chronic pain patients. Preliminary evidence indicated that chronic pain patients displayed lower visual mediated encoding and retrieval performance, although their recognition is comparable. Although the nature of this study was targeted toward visual learning and retrieval, it is likely that the known impact of chronic pain on attention, working memory, and processing speed accounts for this relationship. Future studies will benefit from further elucidating these potential mechanisms and better inform clinical decision-making and neuropsychological testing performance in patients with chronic pain.
2 The Role of Causality in Understanding How Prior Event Knowledge Impacts New Learning
- Alexa S. Gonzalez, Anna B. Drummey, Tyler J. Hubeny, Alexander Held, Irene P. Kan
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- Journal:
- Journal of the International Neuropsychological Society / Volume 29 / Issue s1 / November 2023
- Published online by Cambridge University Press:
- 21 December 2023, pp. 522-523
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Objective:
The influence of prior knowledge on new learning is well established. However, there has been less research dedicated to teasing apart the key components of prior knowledge’s structure that contribute to memory enhancement. In the current study, we focused on event structures, which include various relations, such as associative, causal, and temporal. Given that events possess attributes relevant to numerous cognitive memory processes, we were most interested in exploring how event structures that possess causal relations enhance new memory formation. Specifically, we examined whether events that exhibit causal associative relations provide an additional boost to new learning compared to event structures with non-causal associative relations.
Participants and Methods:Forty-six undergraduate students took part in the study. Participants’ learning of the content of image pairs that exhibit everyday, real-world events were measured using a cued recall paradigm. The stimuli consisted of 60 image pairs that illustrated two events that were related causally and associatively (i.e., causal pairs); related only associatively (i.e., non-causal pairs); or not related at all (i.e., unrelated pairs). During an encoding phase, image pairs were presented one at a time, and after the presentation of each image pair, participants answered an encoding question that focused on the relationship between the two images. After the encoding phase and a short filler task, participants were shown a cue image (always the first picture from the pair) and were asked to provide a brief written description of the content of the second presented image from each pair. Also, as a manipulation check, we asked subjects to rate each image pair on causal direction and association strength after completion of the cued recall memory task.
Results:We found that, relative to unrelated pairs, events that possess associative relations (i.e., both causal and non-causal items) benefit learning of new information. In addition, causal relations provided an additional boost to new learning. Specifically, cued recall performance is best for causal pairs, followed by non-causal pairs and unrelated pairs. Moreover, causal direction ratings significantly predict overall itemlevel accuracy above and beyond general associative relations that exist in events. We also examined recall accuracy for specific content information within each event (i.e., agent, action, object) and found that causal relations uniquely contribute to recall performance of objects and actions.
Conclusions:Overall, the present study’s findings suggest that prior event knowledge structures possessing causal and non-causal associative relations support new learning, especially compared to image pairs with no relations. Of interest, causality provides an additional boost to new learning above and beyond general associative relations. By focusing on the role of causality in event structures, our findings informed our understanding of how prior knowledge supports new learning. Considering that the effect of prior knowledge on new episodic learning is especially evident in older adults, since they more readily rely on their schematic knowledge, a future direction would entail investigating how causal links influence new memory formation in older adults.
Students’ emotional well-being and religiosity during the COVID-19 pandemic- an international study in 7 countries
- K. H. Karakula, A. Forma, R. Sitarz, J. Baj, D. Juchnowicz, J. Bogucki, W. Tuszyńska-Bogucka, M. L. Tee, C. A. Tee, J. T. Ly-Uson, M. S. Islam, M. T. Sikder, A. H. El-Monshed, A. Loutfy, M. F. Hussain Qureshi, M. Abbas, S. Taseen, M. Lakhani, S. Jayakumar, S. Ilango, S. Kumar, Á. A. Ruiz-Chow, A. Iturbide, D. D. González-Mille, H. Karakula-Juchnowicz
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S406
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Introduction
There are no conclusive findings about the possible protective role of religion on students’ mental health during the COVID-19 pandemic. Therefore, more research is needed.
ObjectivesThe purpose of this study was to assess the relationship between the level of emotional distress and religiosity among students from 7 different countries during the COVID-19 pandemic.
MethodsData were collected by an online cross-sectional survey that was distributed amongst Polish (N = 1196), Bengali (N = 1537), Indian (N = 483), Mexican (N = 231), Egyptian (N = 565), Philippine (N = 2062), and Pakistani (N = 506) students (N = 6642) from 12th April to 1st June 2021. The respondents were asked several questions regarding their religiosity which was measured by The Duke University Religion Index (DUREL), the emotional distress was measured by the Depression, Anxiety, and Stress Scale-21 (DASS-21).
ResultsEgypt with Islam as the dominant religion showed the greatest temple attendance (organizational religious activity: M=5.27±1.36) and spirituality (intrinsic religiosity: M=5.27±1.36), p<0.0001. On another hand, Egyptian students had the lowest emotional distress measured in all categories DASS-21 (depression: M=4.87±10.17, anxiety: M=4.78±10.13, stress: M=20.76±11.46). Two countries with the dominant Christian religion achieved the highest score for private religious activities (non-organizational religious activity; Mexico: M=3.94±0.94, Poland: M=3.63±1.20; p<0.0001) and experienced a moderate level of depressive symptoms, anxiety, and stress. Students from Mexico presented the lowest attendance to church (M=2.46±1,39) and spirituality (M=6.68± 3.41) and had the second highest level of depressive symptoms (M=19.13±13.03) and stress (M=20.27±1.98). Philippines students had the highest DASS-21 score (depression: M=22.77±12.58, anxiety: M=16.07±10.77, stress: M=4.87±10.08) and their level of religiosity reached average values in the whole group. The performed regression analysis confirmed the importance of the 3 dimensions (organizational religious activity, non-organizational religious activity, intrinsic religiosity) of religiosity for the well-being of students, except for the relationship between anxiety and private religious activities. The result was as presented for depression: R2=0.0398, F(3.664)=91.764, p<0.0001, SE of E: 12.88; anxiety: R2=0.0124, F(3.664)=27.683, p<0.0001, SE of E: 10,62; stress: R2= 0.0350, F(3.664)=80.363, p<0.0001, SE of E: 12.30.
ConclusionsThe higher commitment to organizational religious activity, non-organizational religious activity, and intrinsic religiositywas correlated with the lower level of depressive symptoms, stress, and anxiety among students during the COVID-19 pandemic, but taking into account factors related to religiosity explains the level of emotional well-being to a small extent.
Disclosure of InterestNone Declared
Group psychotherapy for patients with first-episode psychosis: Effect on the clinical status and use of resources
- P. Herrero Ortega, A. Oliva Lozano, J. Garde González, C. Bayón-Pérez, R. Mediavilla, M. P. Vidal-Villegas, B. Rodríguez-Vega, S. Cebolla, E. Román, E. V. Pérez Pérez, M. F. Bravo-Ortiz, O. B. O. AGES-Mind Group
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S635-S636
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Introduction
Psychotic disorders carry several economical, psychological and social consequences, both at individual and community levels. Early intervention programs after first-episode psychosis which combine pharmacological and psychosocial strategies are aimed at reducing symptoms, lowering costs in the use of health and non-health care resources and improving overall functioning. AGES-Mind study is based on manualized psychotherapeutic interventions for people with first-psychosis episodes.
ObjectivesThe aim of the study was to evaluate the effect of a group psychotherapeutic intervention on the clinical status and use of clinical resources in a sample of patients with first-episode psychosis at 12 and 24 months after the beginning of the intervention. This cohort will be compared to patients with first-psychosis episodes without group psychotherapeutic intervention.
MethodsLongitudinal, observational, retrospective study on a cohort of N=46 patients with first-episode psychosis within the last 5 years. Two groups of 23 patients each were formed. The participants of one of those groups received group psychotherapy in the context of the AGES-Mind study and the other group received treatment as usual without group intervention. Non-exposed patients were matched by age, gender and time elapsed since first-episode psychosis with those exposed to the intervention. Sociodemographic data, clinical status and use of clinical resources outcome variables were assessed.
ResultsNo significant differences were found in clinical status and use of resources between participants and non-participants in the psychotherapeutic group intervention after 12 and 24 months.
ConclusionsAfter controlling for potentially confounding variables as sociodemographic, age and time since first-episode, participating in a group psychotherapeutic program does not seem to improve clinical variables or use of resources. Further studies with larger samples would be necessary to explore other variables, such as symptoms, satisfaction with the intervention or social functioning.
Disclosure of InterestNone Declared
Searching for bridges between psychopathology and real-world functioning in first-episode psychosis: a network analysis from the OPTiMiSE trial
- F. Dal Santo, E. Fonseca-Pedrero, M. P. García-Portilla, L. González-Blanco, P. A. Sáiz, S. Galderisi, G. M. Giordano, J. Bobes
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S262-S263
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Introduction
Network analysis has been used to explore the interplay between psychopathology and functioning in psychosis, but no study has used dedicated statistical techniques to focus on the bridge symptoms connecting these domains.
ObjectivesThe current study aims to estimate the network of depressive, negative, and positive symptoms, general psychopathology, and real-world functioning in people with first-episode schizophrenia or schizophreniform disorder, focusing on bridge nodes.
MethodsBaseline data from the OPTiMiSE trial were analysed. The sample included 446 participants (age 40.0±10.9 years, 70% males). The network was estimated with a Gaussian graphical model (GGM), using scores on individual items of the Positive and Negative Syndrome Scale (PANSS), the Calgary Depression Scale for Schizophrenia (CDSS), and the Personal and Social Performance (PSP) scale. Stability, strength centrality, expected influence (EI), predictability, and bridge centrality statistics were computed. The top 20% scoring nodes on bridge strength were selected as bridge nodes.
ResultsNodes from different rating scales assessing similar psychopathological and functioning constructs tended to cluster together in the estimated network (Fig. 1). The most central nodes (EI) were Delusions, Emotional Withdrawal, Depression, and Depressed Mood. Bridge nodes included Depression, Conceptual Disorganisation, Active Social Avoidance, Delusions, Stereotyped Thinking, Poor Impulse Control, Guilty Feelings, Unusual Thought Content, and Hostility. Most of the bridge nodes belonged to the general psychopathology subscale of the PANSS. Depression (G6) was the bridge node with the highest value.
Image:
ConclusionsThe current study provides novel insights for understanding the complex phenotype of psychotic disorders and the mechanisms underlying the development and maintenance of comorbidity and functional impairment after psychosis onset.
Disclosure of InterestNone Declared
Differential diagnosis of late onset psychotic symptoms. A case report.
- J. Sánchez Rodríguez, S. Puyal González, M. Paz Otero, E. Lozano Bori, A. García Recio
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S1063
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Introduction
We present the case of a sixty-seven-year-old woman who is examined for the first time in the emergency room because of a nine-month clinical picture that involves psychotic symptoms. The patient exhibits persecutory delusions that started after she shared some private information on social media. These symptoms also entail emotional distress and behavioral disturbances. She has never experienced hallucinations, but she does present delusional interpretations of the environment. Her clinical history reveals abnormalities of premorbid personality, including paranoid and immature features.
Objectives(1) We will be carrying out a differential diagnosis of late onset psychotic symptoms. We will as well be exploring the concept of Paraphrenia and analyzing its differential features in order to stablish the most suitable diagnosis for the case.
(2) The relationship between abnormalities in premorbid personality and psychotic symptoms will be covered, reviewing the available literature on this matter, and relating it to the patient’s symptomatology.
MethodsA review of the patient’s clinical history will be carried out, considering her biography, the testimony of her family and the complementary tests performed during the hospitalization period.
A bibliographic review of the available scientific literature will also be developed involving disorders that could explain psychotic symptoms in the elderly, as well as the term Paraphrenia, which describes specific features in a psychotic episode but is not included in the diagnostic manuals.
Results(1) The symptomatology that our patient exhibits may be considered atypical given the late stage of its onset and its specific features.
(2) The case could be explained under the category of Delusional Disorder. From a psychopathological point or view, it could also fit under de diagnosis of Paraphrenia as described by Ravindran et al.
(3) Pathological personality traits were assessed in premorbid personality which included paranoid and immature features.
ConclusionsIt could be useful to review the concept of the “paranoid spectrum” as proposed by some authors regarding some patient’s psychotic symptoms that don’t exactly fit any of the nowadays diagnostic categories. “Paraphrenia” could be understood as a distinct clinical entity for patients who show psychotic disorders but keep affective warmth and lack though deterioration and grossly disorganized behavior.
Most patients with late life paranoid psychoses have abnormal premorbid personalities, most usually of schizoid or paranoid type. There’s a decent amount of consensus in viewing the premorbid personality as having been abnormal as an early marker of impending psychosis.
Reformulating the way we approach diagnosis of psychotic symptoms of late onset could help us identify vulnerable patients on a premorbid stage and better classify and understand atypical entities.
Disclosure of InterestNone Declared
Smoking treatments for patients with mental illness: case presentation and a brief literature review
- F. Garcia Sanchez, M. Gutierrez Rodriguez, C. Moreno Menguiano, M. A. Corral Alonso, J. J. Vazquez Vazquez, S. M. Bañon Gonzalez, V. Voces Domingo, J. A. Casado de la Hera
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S756
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Introduction
Smoking prevalence in patients with mental illness ranges between two to 4 times higher than general population. This higher prevalence has a multifactorial origin, and some of the possible causes are still unknown.
They have a higher prevalence of tobacco-associated diseases and higher mortality.
Additionally, these patients have greater difficulty in treating and quitting smoking.
A relationship has been found between severity of mental illness and smoking. Risk of suicide seems to be higher in patients with higher tobacco consumption. Schizophrenia is the mental illness that has been most closely related to smoking, with a prevalence close to 90%.
ObjectivesThe aim of this work is reviewing the current bibliography referring to smoking treatments for patients with mental illness
MethodsA literature search using electronic manuscripts available in PubMed database published during the last ten years and further description and discussion of a single-patient clinical case
ResultsThe treatment of tobacco dependence in patients with mental illnesses is sometimes waited until there is psychiatric stability, which can take a long time in those cases with more severe mental disorders, which can have negative physical and psychiatric consequences.
The combined treatment of cognitive behavioral therapy and pharmacological treatment is the most effective approach. Nicotine replacement therapy can be useful, while combined use of antidepressants or anxiolytics is also recommended.
Bupropion has shown efficacy. In patients with schizophrenia it does not seem to worsen positive symptomatology, but improving the negative one. It should not be used in patients with bipolar disorder or bulimia.
Varenicline has shown efficacy in the general population, but limitations were established in patients with mental illness, although it is the drug that has shown greater efficacy. However, is not currently available in our country.
Cytisine is a drug with limited number of studies in the psychiatric population but it may be a reasonable treatment alternative.
ConclusionsThe prevalence of tobacco use in patients with mental illness is higher than the general population, especially in paranoid schizophrenia. The consequences on physical health and the evolution of psychiatric illness are very relevant. Based on above, a multidisciplinary and coordinated management involving psychiatrists and other specialists in the treatment of these patients should be desirable.
Disclosure of InterestNone Declared
Brief psychotic episode in an adult without medical antecedents after suffering the indirect consequences of the Russian-Ukrainian war
- R. G. Troyano, M. Fariña Francia, E. Marimon Muñoz, I. Fernandez Marquez, E. Miranda Ruiz, M. Arroyo Ucar, J. Ramirez Gonzalez, S. Ferreiro Gonzalez, C. Hidalgo, A. Quispe
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S911
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Introduction
Almost nine months after the start of the war between Russia and Ukraine, millions of people have been affected physically, economically and mainly mentally. Those who have stayed in their homeland, and the ones that have chosen to emigrate to a safer place.
ObjectivesThe objective of this article is to assess the importance of social stressors in the onset of a brief psychotic episode, even in the absence of substance abuse or previous illnesses.
MethodsThe case of a 45-year-old woman is described, known by the Pediatric Emergency Service, for being the tutor of a patient who suffered from anxiety attacks, having emigrated without her parents from Ukraine together with her 5 brothers. The psychotic episode begins when our patient gets notified that she must abandon the custody of the girl, because she will have to go to Turkey with her legal guardians. The family explains the behavioral changes that the patient made and how the clinical picture worsened.
ResultsShe was admitted at the Hospital’s Psychiatry Service and antipsychotics treatment started. After 5 days, the episode had completely been solved.
ConclusionsIn conclusion, we highlight the importance of social problems in the development of a psychiatric pathology and the necessary elements to prevent it: family support network, fast and efficient care services and availability of hospital and pharmaceutical resources.
Disclosure of InterestNone Declared
Efficacy of paliperidone palmitate 3-month formulation in preventing hospital admissions and emergency room visits. 66 months of follow-up
- S. L. Romero Guillena, B. O. Plasencia Garcia de Diego, J. Gomez Gonzalez, F. Gotor Sánchez-Luengo
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S487
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Introduction
Paliperidone Palmitate 3-month formulation (PP3M) has shown a significantly longer time to relapse compared to placebo, with similar efficacy and safety to Paliperidone Palmitate 1-month (PP1M) (Carpiniello et al. Drug Des. Devel. Ther. 2016; 10 1731–1742).
ObjectivesThe main objective of this study was to determine the effectiveness of PP3M in preventing hospital admissions and emergency room visits, in people with non-acute schizophrenia in a naturalistic psychiatric outpatient setting
MethodsSample: 30 people with diagnosis of schizophrenia (DSM 5 criteria), who had started treatment with PP3M, after being stabilized with PP1M (the dose was not modified in the four months prior to inclusion in the study)
Quarterly basis, the following evaluations were performed during a follow-up period of 66 months:
The Clinical Global Impression-Schizophrenia scale (CGI-SCH)
Treatment adherence, concomitant medication and the number of hospitalizations and emergency visits
Efficacy values: Percentage of patients who remained free of admissions at the end of 66 months of follow-up.
Other evaluation criteria: Percentage of patients who never visited the emergency department at the end of 66 months of follow-up. Average change from baseline visit to the final evaluation as assessed by score obtained on the following scale: GSI-SCH, percentage of patients on antipsychotic monotherapy and treatment adherence rate.
ResultsThe mean dose of PP3M was 401. 55 mg
The percentage of patients who remained free of admissions at the end of the 66 months was 83.25% and the percentage of patients who never visited the emergency department at the end of 66 months was 79.92%
Mean variations from baseline scores at 66 months were: (-0.36 ±0-37) on the GCI-SCH.
The percentage of patients on antipsychotic monotherapy at the end of the 66 months was 76.56%
The rate of adherence was 86.58%
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ConclusionsIn our study, we found that paliperidone palmitate 3-month formulation was effective in reducing the number of admissions and visits to the emergency department, under conditions of daily clinical practice.
Disclosure of InterestNone Declared
Acute psychosis following corticosteroid administration for COVID-19 and Respiratory Syncytial Virus infection: A case study
- E. Miranda Ruiz, E. Marimon Muñoz, J. Ramirez Gonzalez, M. Fariña, R. G. Troyano, M. I. Arroyo Ucar, S. Ferreiro, I. Fernandez Marquez, C. Hidalgo, A. Quispe, L. Delgado
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S790
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Introduction
Steroids are a necessary treatment for hypoxic respiratory failure; however there are many side effects that should be taken into account. A 44- year-old-woman with asthma and no past psychiatric history was admitted due to COVID-19 pneumonia and Respiratory syncytial virus (RSV) infection, presenting hypoxic respiratory failure. After two days of intravenous methylprednisolone administration, the patient presented acute psychosis and agitation.
It has been previously described that steroid use can cause effects such as mania, anxiety, agitation, delirium and psychosis amongst other. However they are a necessary treatment in respiratory illnesses and are sometimes unavoidable.
ObjectivesThe aim was to examine the appropriate medical response to steroid induced psychosis in patients with acute hypoxic failure.
MethodsA bibliographical review was done in PubMed database searching recent cases of steroid induced psychosis using the words (“Steroid”, “Psychosis” and “COVID-19”).
ResultsAccording to literature, it has been shown that partial or complete reduction of steroid use and/or use of psychotropic has been successfully used to treat steroid induced psychosis. Following the research it was decided to reduce intravenous methylprednisolone dose from 20mg/ 8h to 20mg/12h and start oral haloperidol 5mg/8h the first 24h and reducing the dose progressively as the patient recovered. After the first 24 hours the patient presented adequate response to steroids as well as partial response to antipsychotic treatment; presenting no further agitation, absence of hallucinations and partial persistence of the persecutory delusion. A couple of days later there was complete remission of the psychotic symptoms and the patient was on the way to recovery from COVID-19 and RSV.
ConclusionsThere is evidence that suggests that medications such as steroids used to treat COVID-19 and other respiratory illnesses can lead to psychotic episodes. It is very important to pay attention to possible side effects when treating with steroids and evaluate the patient history as well as suggest having a follow up visit after the hospital discharge.
Disclosure of InterestNone Declared
Facing the COVID-19 pandemic – an assessment of students’ mental health and major coping strategies during the COVID-19 pandemic – an international study
- A. A. Forma, K. H. Karakuła, R. Sitarz, D. Juchnowicz, J. Baj, J. Bogucki, J. Rog, M. L. Tee, C. A. Tee, J. T. Ly-Uson, M. S. Islam, M. T. Sikder, A. H. El-Monshed, A. Loutfy, M. F. H. Qureshi, M. Abbas, S. Taseen, M. Lakhani, C. Wang, X. Wan, Y. Tan, R. Pan, R. Ho, S. Jayakumar, S. Ilango, S. Kumar K, Á. A. Ruiz-Chow, A. Iturbide, D. D. González-Mille, L. P. Doan, H. Karakuła-Juchnowicz
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S152-S153
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Introduction
TDuring COVID-19 pandemic, it was noticed that it was students who were mostly affected by the changes that aroused because of the pandemic. The interesting part is whether students’ well-being could be associated with their fields of study as well as coping strategies.
ObjectivesIn this study, we aimed to assess 1) the mental health of students from nine countries with a particular focus on depression, anxiety, and stress levels and their fields of study, 2) the major coping strategies of students after one year of the COVID-19 pandemic.
MethodsWe conducted an anonymous online cross-sectional survey on 12th April – 1st June 2021 that was distributed among the students from Poland, Mexico, Egypt, India, Pakistan, China, Vietnam, Philippines, and Bangladesh. To measure the emotional distress, we used the Depression, Anxiety, and Stress Scale-21 (DASS-21), and to identify the major coping strategies of students - the Brief-COPE.
ResultsWe gathered 7219 responses from students studying five major studies: medical studies (N=2821), social sciences (N=1471), technical sciences (N=891), artistic/humanistic studies (N=1094), sciences (N=942). The greatest intensity of depression (M=18.29±13.83; moderate intensity), anxiety (M=13.13±11.37; moderate intensity ), and stress (M=17.86±12.94; mild intensity) was observed among sciences students. Medical students presented the lowest intensity of all three components - depression (M=13.31±12.45; mild intensity), anxiety (M=10.37±10.57; moderate intensity), and stress (M=13.65±11.94; mild intensity). Students of all fields primarily used acceptance and self-distraction as their coping mechanisms, while the least commonly used were self-blame, denial, and substance use. The group of coping mechanisms the most frequently used was ‘emotional focus’. Medical students statistically less often used avoidant coping strategies compared to other fields of study. Substance use was only one coping mechanism that did not statistically differ between students of different fields of study. Behavioral disengagement presented the highest correlation with depression (r=0.54), anxiety (r=0.48), and stress (r=0.47) while religion presented the lowest positive correlation with depression (r=0.07), anxiety (r=0.14), and stress (r=0.11).
Conclusions1) The greatest intensity of depression, anxiety, and stress was observed among sciences students, while the lowest intensity of those components was found among students studying medicine.
2) Not using avoidant coping strategies might be associated with lower intensity of all DASS components among students.
3) Behavioral disengagement might be strongly associated with greater intensity of depression, anxiety, and stress among students.
4) There was no coping mechanism that provided the alleviation of emotional distress in all the fields of studies of students.
Disclosure of InterestNone Declared
Understanding socio-labor inclusion among young adults with autism spectrum and mental disorders: preliminary findings
- M. S. Burrone, M. J. González, M. T. Solís-Soto, P. Valenzuela, L. Rojas, L. Colantonio, C. Cortés, C. Pérez
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S436-S437
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Introduction
Previous studies suggest that adults with mental disorders (MD) or Autism Spectrum Disorder (ASD) are more likely to be unemployed than those without MD. However, it is unclear whether working adults with MD or ASD perceive the same effort-reward balance as their counterparts without MD or ASD.
ObjectivesTo analyze labor conditions and to identify factors associated with effort-reward imbalance among young adults with ASD, MD and those from the general population (GP).
MethodsA qualitative and quantitative study design is being conducted to analyze the rates of employment among young adults with ASD, and to identify factors associated with employment rates (Fondecyt ID11201028.). As part of this study, we conducted a quantitative analysis in young adults 16 to 30 years of age in two regions of Chile between August and October, 2022. Young adults with MD and ASD were compared with adults of similar age recruited from the GP. We applied a questionnaire to collect data on participant’s sociodemographic information, autonomy level and employment status. We applied the short Spanish version of the effort–reward imbalance (ERI) and overcommitment (OC) questionnaire, which has been widely used in Latin American countries.
Chi-square test was used and the Kruskal Wallis H Test was applied to compare among groups. The statistical significance was set at P<0.05.
ResultsOverall, 422 participants were included in the analysis (mean age 22±3.2, 64.2% women, 65.2% students, and 4.4% unemployed). Of the total respondents, 22% of young adults from GP, 17.8% with MD, and 4.8% with ASD were working at the moment of the survey. Regarding autonomy level, a higher proportion of participants with ASD needed support (36.4%), compared with 9.7% and 0.8% of young adults with MD and GP, respectively. Of the population who reported working (n=125), about 56.0% have a permanent job, and 44% a seasonal or occasional job. The median value for the effort–reward ratio was 0.96 (range 0.4–1.8), with no significant differences between the groups. Of those participants working, 44.3% showed an ERI ratio higher than 1, which was higher in participants with ASD (60%). ERI-esteem was significantly different (P=0.01) among ASD (7.0; range 5-8), MD (6.0; range 2-8) and PG (6.0; range 2-8). In the OC questionnaire, young adults with ASD were more likely to think about work (P=0.01) and having trouble sleeping at night due to work issues (P=0.03) than GP and MD groups.
ConclusionsThe ASD group showed higher overcommitment and a considerable proportion of subjects at risk of effort-reward imbalance at work, were more likely to think about work at home, and had trouble sleeping thinking about work. Our preliminary results highlight the importance of considering the working conditions of young adults diagnosed with ASD and the need to provide them with enough support to promote labor inclusion.
Disclosure of InterestNone Declared
Joint treatment of an acute manic episode and a multiple sclerosis debut: A case study
- M. Fariña Francia, E. Marimon Muñoz, E. Miranda Ruiz, I. Fernandez Marquez, R. G. Troyano, J. Ramirez Gonzalez, S. Ferreiro Gonzalez, C. Hidalgo Vazquez, A. Quispe Sulca, M. I. Arroyo Ucar
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S570-S571
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Introduction
Multiple Sclerosis (MS) is an autoimmune inflammatory disease that affects 1 in 1000 people. Given the association of MS to many affective disorders and specifically with Bipolar Disorder (BD), it is possible that a manic episode and an acute episode of MS may appear together. In these cases, it is difficult to decide whether it is necessary to start a corticosteroid regimen as treatment for the acute episode of MS, since it may worsen manic symptoms.
ObjectivesThe aim is to carry out a review of the existing information in relation to the comorbidity prevalence of MS and TB as well as the joint treatment of both illnesses, and to expose the details of a clinical case, regarding the treatment that was used in the acute psychiatry unit.
MethodsFirst, a search was done in PubMed database reviewing recent cases of steroid induced psychosis using the words (Multiple Sclerosis) AND (Bipolar Disorder). Subsequently, we describe the case of a 41-year-old patient who was admitted to the acute care unit from the emergency department presenting manic symptoms (megalomania, sensation of increased capacities and ideas of mystical content) associated to episodes of muscle weakness and gait disturbances. A screening Magnetic Resonance was performed in which lesions with inflammatory-demyelinating characteristics were detected, and was therefore catalogued as MS debut.
ResultsAfter carrying out a bibliographical review, we can conclude that studies recommend the inclusion of MS within the differential diagnosis of a first manic episode (1), performing neurological examinations, complete anamnesis and imaging tests, given that there is a high prevalence ratio of the comorbidity (2.95%) (2). It has been described that the use of lithium has a calming and neuroprotective agent that may be useful (3).
ConclusionsWe consider it of interest to describe the therapeutic approach to the case. After the introduction of Aripiprazole and Lithium, a short regimen of methylprednisolone in high doses was administered to treat the MS episode. When the treatment started, the patient presented a progressive improvement of the manic episode and motor symptoms. We observed that corticosteroid therapy did not worsen the manic symptoms or the patient’s evolution in this case. We intend to contribute by providing information on the joint management of these pathologies and we consider that it is necessary to continue studying this matter to be able to manage these cases in the most appropriate way.
Disclosure of InterestNone Declared
The therapeutic potential of psilocybin in depression resistant to psychotropic drugs
- J. Ramírez González, I. Fernández Márquez, S. Ferreiro González, E. M. Ruíz
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S834
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Introduction
The use of hallucinogens has accompanied the human being throughout history. In the 1970s, studies focused on the therapeutic potential of hallucinogens were blocked due to their misuse in the young population. At present, psilocybin is re-emerging as the center of attention due to its possible therapeutic potential in different psychiatric pathologies such as depression, anxiety or substance use.
ObjectivesThe main objective of this work has been to review recent studies on the therapeutic potential of psilocybin in drug-resistant depressive disorder.
MethodsFor the search for articles, the search strategy “psilocybin AND depression” was established in PUBMED. Regarding the inclusion criteria, it was established that they were recent articles, in Spanish or English and that the full text was freely accessible. On the other hand, those articles whose studies did not focus on humans and resistant depressive disorder were excluded. A total of 19 articles were obtained to review.
ResultsFocusing on Drug-Resistant Depressive Disorder, multiple studies have agreed that the administration of one or two microdoses (10-25mg) of psilocybin accompanied by psychotherapy improves the clinical picture for at least 6 months. These results make us feel optimistic in the search for new treatments in the field of mental health.
ConclusionsPsilocybin microdoses associated with psychotherapy improves depressive symptoms in a patient resistant to common antidepressants.
The psilocybin response in terms of improvement of the depressive symptoms persists after 6 months of evolution.
One or, in some two cases, two microdoses of psilocybin (10-25mg) are enough to obtain statistically significant results in the improvement of the depressive symptoms.
Disclosure of InterestNone Declared
Sociodemographic and clinical characteristics of the population with a first psychotic episode attended in the mental health services of area 5 of Madrid (Spain)
- J. Garde González, P. Herrero Ortega, A. Oliva Lozano, I. I. Louzao Rojas, M. P. Vidal-Villegas, A. Muñoz-Sanjosé, M. P. Sánchez-Castro, G. Lahera, S. Sánchez Quílez, M. F. Bravo-Ortiz, O. B. O. A.-M. Group
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S443
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Introduction
Risk of functional impairment and progression to chronic illness in people with a first episode of psychosis (FEP) has motivated early intervention programs, showing promising results. Defining the characteristics of people with FEP at local level enables the clinicians to adjust interventional models to the reality of the population. The area 5 of Madrid (Spain) is referred to La Paz University Hospital and it serves a catchment area of roughly 527,000 people.
ObjectivesWe aim to identify sociodemographic and clinical characteristics of patients in the area 5 of Madrid (Spain) who meet the criteria of FEP.
MethodsA descriptive retrospective study including 179 people (age range 18-40 years) who were attended in mental health services of La Paz University Hospital (area 5 of Madrid, Spain), between January 2019 and May 2020, having suffered a psychotic episode in the last five years.
ResultsThe average age of people with FEP was 29.32 years, with a higher proportion of men (62%). The mean duration of untreated psychosis (DUP) was 3.64 months and 47% of patients consume cannabis. We found disparities in DUP among the different districts in the area and we also observed differences depending on the district for inclusion in rehabilitation programs or psychotherapy. The following averages were obtained for the aggregate sample: 1.01 hospitalization/year, 1.42 emergency room visits/year, 1.81 years of illness and a mean dosage equivalent to olanzapine 6.75 mg/day. The incidence of psychosis in our area has been 7.01 cases per 100000 inhabitants/year.
ConclusionsThe incidence of psychosis has been as expected according to data recorded at previous studies in Spain. The results obtained in our sample have included a lower DUP and a higher use of cannabis than those described in the literature. We have also found differences when observing the inclusion of patients in different treatments (psychotherapy, rehabilitation), which may be related to the differences in the DUP by districts. Further exploration in this field is needed to draw causal conclusions.
Disclosure of InterestNone Declared