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TwinsMX: Exploring the Genetic and Environmental Influences on Health Traits in the Mexican Population
- Brisa García-Vilchis, Talia V. Román-López, Diego Ramírez-González, Xanat J. López-Camaño, Vanessa Murillo-Lechuga, Xóchitl Díaz-Téllez, C. Itzamná Sánchez-Moncada, Ian M. Espinosa-Méndez, Diego Zenteno-Morales, Zaida X. Espinosa-Valdes, Sofia Pradel-Jiménez, Andrea Tapia-Atilano, Ana V. Zanabria-Pérez, Federica Livas-Gangas, Oscar Aldana-Assad, Ulises Caballero-Sánchez, César A. Dominguez-Frausto, Miguel E. Rentería, Alejandra Medina-Rivera, Sarael Alcauter, Alejandra E. Ruiz-Contreras
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- Journal:
- Twin Research and Human Genetics / Volume 27 / Issue 2 / April 2024
- Published online by Cambridge University Press:
- 03 May 2024, pp. 85-96
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TwinsMX registry is a national research initiative in Mexico that aims to understand the complex interplay between genetics and environment in shaping physical and mental health traits among the country’s population. With a multidisciplinary approach, TwinsMX aims to advance our knowledge of the genetic and environmental mechanisms underlying ethnic variations in complex traits and diseases, including behavioral, psychometric, anthropometric, metabolic, cardiovascular and mental disorders. With information gathered from over 2800 twins, this article updates the prevalence of several complex traits; and describes the advances and novel ideas we have implemented such as magnetic resonance imaging. The future expansion of the TwinsMX registry will enhance our comprehension of the intricate interplay between genetics and environment in shaping health and disease in the Mexican population. Overall, this report describes the progress in the building of a solid database that will allow the study of complex traits in the Mexican population, valuable not only for our consortium, but also for the worldwide scientific community, by providing new insights of understudied genetically admixed populations.
Acid Activation of a Ferrous Saponite (Griffithite): Physico-Chemical Characterization and Surface Area of the Products Obtained
- M. A. Vicente Rodriguez, M. Suarez Barrios, J. D. Lopez Gonzalez, M. A. Bañares Muñoz
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- Journal:
- Clays and Clay Minerals / Volume 42 / Issue 6 / December 1994
- Published online by Cambridge University Press:
- 28 February 2024, pp. 724-730
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A ferrous saponite (griffithite) from Griffith Park (California, USA) was treated with solutions of HCl (0.62, 1.25 and 2.5% by weight) at 25°C for 2, 6, 24 and 48 hours. The resulting solids were characterized by XRD, FT-IR spectroscopy, thermal analyses, SEM, TEM and nitrogen adsorption isotherms at 77 K, showing the destruction of silicate structure by the treatments. The free silica generated by these treatments was digested and determined in all samples. Several samples had specific surface areas up to 250 m2/g, with maximum values which are 10 times higher than the surface area of natural saponite (35 m2/g). A sudden decrease in specific surface areas was observed when free silica was digested, which indicates that free silica makes a very important contribution to the surface area of leached samples.
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.
Nitrate removal by calcined hydrotalcite-type compounds
- María M. Socías-Viciana, María D. Ureña-Amate, Emilio González-Pradas, María J. García-Cortés, Cristina López-Teruel
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- Clays and Clay Minerals / Volume 56 / Issue 1 / February 2008
- Published online by Cambridge University Press:
- 01 January 2024, pp. 2-9
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The sorption of nitrate ions on calcined hydrotalcite-type compounds at 550°C (HT550), 650°C (HT650), and 850°C (HT850) from pure water solution at 25°C has been studied. The influence of the temperature was also investigated for the sample calcined at 850°C by studying the sorption process at 10 and 40°C. The experimental sorption data points were fitted to the Langmuir equation in order to calculate the sorption capacities (Xm) of the samples; Xm values range from 61.7 g kg−1 (HT550 at 25°C) to 147.0 g kg−1 (HT850 at 40°C). The values for the removal efficiency (R) obtained ranged from 70.5% for HT550 at 25°C to 99.5% for HT850 at 40°C. The sorption experiments showed that the greater the calcination temperature (850°C), the more effective the removal of nitrate. The increase in the temperature from 10 to 40°C for sample HT850 also tends to increase the sorption of nitrate from 63.3 g kg−1 to 147 g kg−1 and the corresponding removal efficiency from 71.5 to 99.5%.
Coronavirus disease 2019 is associated with long-term depressive symptoms in Spanish older adults with overweight/obesity and metabolic syndrome
- Sangeetha Shyam, Carlos Gómez-Martínez, Indira Paz-Graniel, José J. Gaforio, Miguel Ángel Martínez-González, Dolores Corella, Montserrat Fitó, J. Alfredo Martínez, Ángel M. Alonso-Gómez, Julia Wärnberg, Jesús Vioque, Dora Romaguera, José López-Miranda, Ramon Estruch, Francisco J. Tinahones, José Manuel Santos-Lozano, J. Luís Serra-Majem, Aurora Bueno-Cavanillas, Josep A. Tur, Vicente Martín Sánchez, Xavier Pintó, María Ortiz Ramos, Josep Vidal, Maria Mar Alcarria, Lidia Daimiel, Emilio Ros, Fernando Fernandez-Aranda, Stephanie K. Nishi, Oscar García Regata, Estefania Toledo, Jose V. Sorli, Olga Castañer, Antonio Garcia-Rios, Rafael Valls-Enguix, Napoleon Perez-Farinos, M. Angeles Zulet, Elena Rayó-Gago, Rosa Casas, Mario Rivera-Izquierdo, Lucas Tojal-Sierra, Miguel Damas-Fuentes, Pilar Buil-Cosiales, Rebeca Fernández-Carrion, Albert Goday, Patricia J. Peña-Orihuela, Laura Compañ-Gabucio, Javier Diez-Espino, Susanna Tello, Ana González-Pinto, Víctor de la O, Miguel Delgado-Rodríguez, Nancy Babio, Jordi Salas-Salvadó
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- Psychological Medicine / Volume 54 / Issue 3 / February 2024
- Published online by Cambridge University Press:
- 05 September 2023, pp. 620-630
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Background
The coronavirus disease 2019 (COVID-19) has serious physiological and psychological consequences. The long-term (>12 weeks post-infection) impact of COVID-19 on mental health, specifically in older adults, is unclear. We longitudinally assessed the association of COVID-19 with depression symptomatology in community-dwelling older adults with metabolic syndrome within the framework of the PREDIMED-Plus cohort.
MethodsParticipants (n = 5486) aged 55–75 years were included in this longitudinal cohort. COVID-19 status (positive/negative) determined by tests (e.g. polymerase chain reaction severe acute respiratory syndrome coronavirus 2, IgG) was confirmed via event adjudication (410 cases). Pre- and post-COVID-19 depressive symptomatology was ascertained from annual assessments conducted using a validated 21-item Spanish Beck Depression Inventory-II (BDI-II). Multivariable linear and logistic regression models assessed the association between COVID-19 and depression symptomatology.
ResultsCOVID-19 in older adults was associated with higher post-COVID-19 BDI-II scores measured at a median (interquartile range) of 29 (15–40) weeks post-infection [fully adjusted β = 0.65 points, 95% confidence interval (CI) 0.15–1.15; p = 0.011]. This association was particularly prominent in women (β = 1.38 points, 95% CI 0.44–2.33, p = 0.004). COVID-19 was associated with 62% increased odds of elevated depression risk (BDI-II ≥ 14) post-COVID-19 when adjusted for confounders (odds ratio; 95% CI 1.13–2.30, p = 0.008).
ConclusionsCOVID-19 was associated with long-term depression risk in older adults with overweight/obesity and metabolic syndrome, particularly in women. Thus, long-term evaluations of the impact of COVID-19 on mental health and preventive public health initiatives are warranted in older adults.
The response to unfolded proteins in schizophrenia and bipolar disorder
- C. Cachán, I. M. Valle, Y. Potes, A. González Rubio, N. Menéndez Coto, D. López Fanjul, I. Vega Naredo, B. Caballero, P. Saiz, J. Bobes, P. García Portilla, A. Coto Montes
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S636-S637
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Introduction
Schizophrenia (SCH) and bipolar disorder (BD) are severe mental disordes, which have high incidence (Whiteford et al. Lancet 2013; 381 1575-86) and are the main causes of diasibility in young people (WHO 2022; https://www.who.int/news-room/fact-sheets/detail/mental-disorders).
Psycological stress appears in different mental disorders, and this is directly related to oxidative stress (Moller et al. Chem Biol Interact. 1996; 102 17-36)(Pupic-Bakrac et al. 2020; Psychiatr Danub. 32 412-9). Oxidative stress causes reticulum edoplasmic stress (ER stress) and this produces high levels of misfolded proteins. Defective proteins are degraded by the proteasome, but but when the density of misfolded proteins exceeds the capacity of the proteosome, the Unfolded and Misfolded Protein Response (UPR) is triggered through three main pathways: Inositol-requiring enzyme 1α (IRE1α); transcription factor 6 alpha (ATF6α) and protein kinase RNA-Like ER kinase (PERK), trying to recover normal protein synthesis capacity (Bermejo-Millo et al. 2018; Mol Neurobiol. 55 7973-86) (González-Blanco et al. 2022; J Cachexia Sarcopenia Muscle 13 919-31).
ObjectivesCharacterizing ER stress and UPR in SCH and BD.
MethodsWe studied ER stress and UPR in peripheral blood mononuclear cells (PBMC) from 50 patients with SCH and an equal number of patients with BD compared to their corresponding controls in order to achieve our objectives.
Western Blot assay were performed following classical procedure () and the results was normalized to Ponceau as loanding control (Nie et al. 2017; BiochemByophys Resp 12 10-13) (Sander et al. 2019; Anal Biochem 575 44-53). Proteasome activity was assessed using Proteasome Activity Assay Kit (ab107921, Abcam, Cambridge, UK).
ResultsER stress was evaluated with BiP/GRP78. Our results showed significantly increased expression in SCH (p<0,01) and BD (p<0,05), being more increased in SCH. Proteasome activity was increased in SCH and BD, being only statistically significant in SQZ (p<0,05). UPR study showed IRE1a cascade significantly activated in SCH (p<0,001) and only slight increased in BD showed without statistical differences. ATF6a pathway is measured by cleavage to active protein (50-kDa). Results showed higher expression in SCH than in BD and controls (p<0,001). In addition, PERK pathway showed higher statistical levels of p-eIF2a/eiF2a ratio in SCH than in BD and control respectively (p<0,05 and p<0,01).
ConclusionsOur results showed a greater alteration in SCH than in BD at the level of protein synthesis, which implies a greater toxicity at the cellular level and, therefore, a clear risk for the survival of cells in this pathology.
Disclosure of InterestNone Declared
Psychiatric comorbidity profiles among suicidal attempters: A cohort study
- Y. Sanchez-Carro, M. Diaz-Marsa, V. Fernandez-Rodrigues, W. Ayad-Ahmed, A. Pemau, I. Perez-Diaz, A. Galvez-Merlin, P. de la Higuera-Gonzalez, V. Perez-Sola, P. Saiz, I. Grande, A. Cebria, J. Andreo-Jover, P. Lopez-Peña, M. Ruiz-Veguilla, A. de la Torre-Luque
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S318-S319
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Introduction
More than 700,000 people die by suicide in 2019 globally (World Health Organitation 2021). Mental health problems constitute a risk factor for suicidal behavior and death by suicide (Hoertel et al. Mol Psychiatry 2015; 20 718–726). Different mental disorders have been related to different forms of suicidal ideation and behavior (Conejero et al. Curr Psychiatry Rep 2018; 20, 33) (Quevedo et al. Compr Psychiatry 2020; 102 152194). However, little is known on comorbidity profiles among suicide attempters.
ObjectivesThe aim of our work was to identify the psychiatric comorbidity profiles of individuals who were admitted a hospital emergency department due to a suicide attempt. Moreover, it intended to know their clinical characteristics according to comorbidity profile.
MethodsA sample of 683 attempters (71.30% female; M age= 40.85, SD= 15.48) from the SURVIVE study was used. Patients were assessed within the 15 days after emergency department admission. Sociodemographic (i.e., sex, age, marital status and employment status) and clinical data were collected. The International Neuropsychiatric Interview (MINI) was used to assess DSM-V Axis 1 mental health diagnoses and the Columbia Suicide Rating Scale (C-SSRS) to assess suicidal ideation and behavior. The Acquired Capacity for Suicide-Fear of Death Scale (ACSS-FAD), the Patient Health Questionnaire (PHQ-9) to assess the frequency of depressive symptoms during the past 2 weeks, and the General Anxiety Disorder-7 (GAD-7) scale to assess symptoms of worry and anxiety were also conducted. For the identification of comorbidity profiles, latent class analysis framework was followed considering diagnosis to each individual disorder as clustering variables. On the other hand, binary logistic regression was used to study the relationship between comorbidity profile membership and clinical factors.
ResultsTwo classes were found (Class I= mild symptomatology class, mainly featured by emotional disorder endorsement; and Class II= high comorbidity class, featured by a wide amount of endorsed diagnoses) (see figure 1). Individuals from the High comorbidity class were more likely to be female (OR= 0.98, p<.05), younger in age (OR= 0.52, p< .01), with more depressive symptoms (OR=1.09, p<.001) and have greater impulsivity (OR= 1.01, p<.05).
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ConclusionsWe found two profiles of people with suicidal behavior based on the presence of mental disorders. Each of the suicidal subtypes had different associated risk factors. They also had a different profile of suicidal behavior.
Disclosure of InterestNone Declared
Study of mentalizing ability in borderline personality disorder: relationship with impulsivity
- A. Galvez-Merlin, P. de la Higuera-Gonzalez, J. M. Lopez-Villatoro, A. de la Torre-Luque, M. Diaz-Marsa, J. L. Carrasco
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S114
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Introduction
Borderline personality disorder (BPD) is a severe mental disorder characterized by affective, behavioral and relational instability, along with interpersonal hypersensitivity and unstable affective relationships (APA 2013). Poor interpersonal functioning could be associated with critical deficits in the ability to mentalize in these patients, together with high levels of impulsivity. Although most studies have described hypermentalization deficits among BPD patients (Bora Psychol Med 2021;51 2541-2551), existing literature is still scarce on this aspect, as well as its relationship with the impulsive behavior.
Objectives1) to assess specific mentalizing deficits in BPD compared to healthy controls in a complex ecological mentalization task; 2) evaluate the relationship between mentalization and impulsivity in BPD.
Methods63 patients diagnosed with borderline personality disorder and 31 control subjects were studied using the Movie for the Assessment of Social Cognition -MASC- (Dziobeck et al. J Autism Dev Disord 2006; 36 623-636) and the Barratt Impulsivity Scale -BIS-11- (Patton et al. J Clin Psychol 1995; 51 768-774), as well as other sociodemographic and clinical factors. The clinical research study was approved by the Clinical Research Ethics Committee of the Hospital Clínico San Carlos (Madrid, Spain).
ResultsThe results showed significant differences in the scores related to correct mentalization, hypomentalization, and non-mentalizing responses between patients and controls, with BPD patients showing worse performance. A significant negative relationship was also observed between impulsivity scores and correct mentalizing responses in BPD patients.
ConclusionsThe results showed a deficit in the ability to mentalize in BPD patients, compared to control subjects, characterized by a hypomentalization and an absence of mentalization. Likewise, this deficit in mentalization ability was related to greater impulsive behavior in patients. These results would be consistent with the hyperarousal hypothesis in BPD, which would reduce inhibitory control, causing mentalization deficits (Euler et al. J Pers Disord. 2021; 35 177-193). Future studies will try to associate specific impulsive behaviors associated with the characteristics of hypomentalization and absence of mentalization observed in our results.
Disclosure of InterestNone Declared
Daytime/nighttime levels of serum IL-33 in schizophrenia at hospital admission and before discharge
- J. J. Tascon-Cervera, A. Morera-Fumero, P. Abreu-Gonzalez, E. Diaz-Mesa, M. R. Cejas-Mendez, S. Yelmo-Cruz, L. Fernandez-Lopez, A. Marcos-Rodrigo
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S1062-S1063
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Introduction
It has been reported an inflammatory state in schizophrenia, with altered levels of some cytokines (Zhou et al. Cytokine 2021; 141:155441). Recent publications have shown the importance of IL- 33, a member of the IL-1 cytokine family which acts as an alarmin (Han et al. Neurosci Bull 2011; 27, 351-357). The role of this cytokine as a biomarker has been investigated in schizophrenia (Koricanac et al. Front Psychiatry 2022; 13, 925757). However, results are controversial. Some studies have not found significant associations between IL-33 and chronic schizophrenia (Campos-Carli et al. Compr Psychiatry 2017; 74 96-101), while other papers have reported increased levels (Kozlowska et. al. J Psychiatr Res. 2021; 138 380-387). In all these studies, levels of IL-33 were measured in a single daily measure, so that it has not been studied if IL-33 has changes during hospitalization.
ObjectivesTo study the serum level of IL-33 at 12:00 and 00:00 hours in schizophrenia patients at admission and before hospital discharge.
MethodsFifteen inpatients with diagnosis of paranoid schizophrenia according to ICD-10 criteria were studied. Patients were hospitalized at the University Hospital of the Canary Islands psychiatric ward because of an acute relapse. A total of four blood samples were taken from each patient: at 12:00 and 00:00 hours the day after admission and at 12:00 and 00:00 hours the day before discharge. Serum IL-33 levels were measured by ELISA techniques. Daytime and nighttime IL-33 serum levels at admission and discharge were compared using a non-parametric Wilcoxon signed-rank test.
ResultsIn table 1 the results of the comparison of IL-33 at admission and discharge are presented. There is a significant reduction of IL-33 levels at 00:00 h. at discharge in comparison with the IL-33 levels at 00:00 h. at admission (p=0.028). No other statistically significant differences were observed.
Serum IL-33 Admission Mean±sd Discharge Mean±sd Z P value 12:00 h. 191.0±348.7 247.0±378.2 -0.166 0.868 00:00 h. 218.8±370.3 153.6±275.7 -2.203 0.028 ConclusionsThe decrease of serum IL-33 at 00:00 at discharge compared to the 00:00 IL-33 serum level at admission points to the utility of this biomarker as a surrogate of brain inflammation.
Disclosure of InterestNone Declared
Mental impact of Covid-19 among Spanish healthcare workers. A large longitudinal survey
- J. Alonso, G. Vilagut, I. Alayo, M. Ferrer, F. Amigo, A. Aragón-Peña, E. Aragonès, M. Campos, I. del Cura-González, I. Urreta, M. Espuga, A. González Pinto, J. M. Haro, N. López Fresneña, A. Martínez de Salázar, J. D. Molina, R. M. Ortí Lucas, M. Parellada, J. M. Pelayo-Terán, A. Pérez Zapata, J. I. Pijoan, N. Plana, M. T. Puig, C. Rius, C. Rodriguez-Blazquez, F. Sanz, C. Serra, R. C. Kessler, R. Bruffaerts, E. Vieta, V. Pérez-Solá, P. Mortier, MINDCOVID Working group
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- Journal:
- Epidemiology and Psychiatric Sciences / Volume 31 / 2022
- Published online by Cambridge University Press:
- 29 April 2022, e28
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Aims
Longitudinal data on the mental health impact of the coronavirus disease 2019 (Covid-19) pandemic in healthcare workers is limited. We estimated prevalence, incidence and persistence of probable mental disorders in a cohort of Spanish healthcare workers (Covid-19 waves 1 and 2) -and identified associated risk factors.
Methods8996 healthcare workers evaluated on 5 May–7 September 2020 (baseline) were invited to a second web-based survey (October–December 2020). Major depressive disorder (PHQ-8 ≥ 10), generalised anxiety disorder (GAD-7 ≥ 10), panic attacks, post-traumatic stress disorder (PCL-5 ≥ 7), and alcohol use disorder (CAGE-AID ≥ 2) were assessed. Distal (pre-pandemic) and proximal (pandemic) risk factors were included. We estimated the incidence of probable mental disorders (among those without disorders at baseline) and persistence (among those with disorders at baseline). Logistic regression of individual-level [odds ratios (OR)] and population-level (population attributable risk proportions) associations were estimated, adjusting by all distal risk factors, health care centre and time of baseline interview.
Results4809 healthcare workers participated at four months follow-up (cooperation rate = 65.7%; mean = 120 days s.d. = 22 days from baseline assessment). Follow-up prevalence of any disorder was 41.5%, (v. 45.4% at baseline, p < 0.001); incidence, 19.7% (s.e. = 1.6) and persistence, 67.7% (s.e. = 2.3). Proximal factors showing significant bivariate-adjusted associations with incidence included: work-related factors [prioritising Covid-19 patients (OR = 1.62)], stress factors [personal health-related stress (OR = 1.61)], interpersonal stress (OR = 1.53) and financial factors [significant income loss (OR = 1.37)]. Risk factors associated with persistence were largely similar.
ConclusionsOur study indicates that the prevalence of probable mental disorders among Spanish healthcare workers during the second wave of the Covid-19 pandemic was similarly high to that after the first wave. This was in good part due to the persistence of mental disorders detected at the baseline, but with a relevant incidence of about 1 in 5 of HCWs without mental disorders during the first wave of the Covid-19 pandemic. Health-related factors, work-related factors and interpersonal stress are important risks of persistence of mental disorders and of incidence of mental disorders. Adequately addressing these factors might have prevented a considerable amount of mental health impact of the pandemic among this vulnerable population. Addressing health-related stress, work-related factors and interpersonal stress might reduce the prevalence of these disorders substantially. Study registration number: NCT04556565
Association between the Prime Diet Quality Score and depressive symptoms in a Mediterranean population with metabolic syndrome. Cross-sectional and 2-year follow-up assessment from PREDIMED-PLUS study
- Naomi Cano-Ibáñez, Lluis Serra-Majem, Sandra Martín-Peláez, Miguel Ángel Martínez-González, Jordi Salas-Salvadó, Maria Dolores Corella Piquer, Camille Lassale, José Alfredo Martínez Hernandez, Ángel M. Alonso-Gómez, Julia Wärnberg, Jesús Vioque Lopez, Dora Romaguera, José López-Miranda, Ramon Estruch, Ana María Gómez-Pérez, José Manuel Santos-Lozano, Fernando Fernández-Aranda, Aurora Bueno-Cavanillas, Josep A. Tur, Vicente Martín, Xavier Pintó Sala, Miguel Delgado-Rodríguez, Pilar Matía Martín, Josep Vidal, Jersy J. Cárdenas, Lidia Daimiel Ruiz, Emilio Ros, Pilar Buil-Cosiales, Nerea Becerra-Tomás, Carmen Saiz, Miguel-Ángel Muñoz-Perez, Itziar Abete, Lucas Tojal-Sierra, Olga Fernández-Barceló, Andrea Bernabé-Casanova, Jadwiga Konieczna, Antonio García-Ríos, Rosa Casas, Maria Rosa Bernal-López, José Lapetra, Estefanía Toledo, Carlos Gómez-Martínez, Oscar Coltell, Mireia Malcampo-Manrúbia, María Angeles Zulet, Carolina Sorto-Sánchez, Alfredo Gea, José Luis Hernández-Fleta, Olga Castañer Niño, Almudena Sánchez-Villegas
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- Journal:
- British Journal of Nutrition / Volume 128 / Issue 6 / 28 September 2022
- Published online by Cambridge University Press:
- 29 October 2021, pp. 1170-1179
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- 28 September 2022
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The burden of depression is increasing worldwide, specifically in older adults. Unhealthy dietary patterns may partly explain this phenomenon. In the Spanish PREDIMED-Plus study, we explored (1) the cross-sectional association between the adherence to the Prime Diet Quality Score (PDQS), an a priori-defined high-quality food pattern, and the prevalence of depressive symptoms at baseline (cross-sectional analysis) and (2) the prospective association of baseline PDQS with changes in depressive symptomatology after 2 years of follow-up. After exclusions, we assessed 6612 participants in the cross-sectional analysis and 5523 participants in the prospective analysis. An energy-adjusted high-quality dietary score (PDQS) was assessed using a validated FFQ. The cross-sectional association between PDQS and the prevalence of depression or presence of depressive symptoms and the prospective changes in depressive symptoms were evaluated through multivariable regression models (logistic and linear models and mixed linear-effects models). PDQS was inversely associated with depressive status in the cross-sectional analysis. Participants in the highest quintile of PDQS (Q5) showed a significantly reduced odds of depression prevalence as compared to participants in the lowest quartile of PDQS (Q1) (OR (95 %) CI = 0·82 (0·68, 0·98))). The baseline prevalence of depression decreased across PDQS quintiles (Pfor trend = 0·015). A statistically significant association between PDQS and changes in depressive symptoms after 2-years follow-up was found (β (95 %) CI = −0·67 z-score (–1·17, −0·18). A higher PDQS was cross-sectionally related to a lower depressive status. Nevertheless, the null finding in our prospective analysis raises the possibility of reverse causality. Further prospective investigation is required to ascertain the association between PDQS and changes in depressive symptoms along time.
Gender differences among psychiatric patients attended in a emergency department
- M. Recio-Barbero, A. Santorcuato, A. Bacigalupe, M. López-Atanes, S. Fuertes-Soriano, J. Cabezas-Garduño, J.P. González-Briceño, M. Sáenz-Herrero
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- European Psychiatry / Volume 64 / Issue S1 / April 2021
- Published online by Cambridge University Press:
- 13 August 2021, p. S600
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Introduction
Mental health disorders are considered a priority in health policies around the world. It is estimated that more than 900 million people worldwide have a mental disorder, in which stress-related disorders account for a high number of emergency department visits. The scientific literature has pointed out the importance of considering how gender and sex differences influence the clinical outcomes of people with mental illness, playing an important role in the clinical management of these patients.
ObjectivesThe aim of this report is to investigate the presence of gender differences in the care of psychiatric patients attending the emergency department (ED), taking into account the clinical characteristics, reasons for consultation and practices.
MethodsThe study considered all episodes of patients who visited the ED during 2017 and who were assessed by the psychiatric department. Statistical analyses were performed using IBM SPSS Statistic software.
ResultsDuring the 12 months period, a total of 3180 episodes were evaluated by the psychiatric department in the ED. Of them, 1723 were female (54,2%) and 1457 male. Regarding clinical data, there were found statistically significant differences with respect to the pharmacological prescription in the ED, specifically in the prescription of benzodiazepines, psychiatric diagnoses after discharge and the indication of hospital admission between women and men.
ConclusionsThis study emphasizes the importance of considering the existence of gender differences in both the clinical presentation as well as in the care of psychiatric patients attending the ED. The analysis of these variables would help to improve the health care of psychiatric patients.
Schizoaffective disorder: Nosological controversies and absence of specific treatment guidelines
- M. Valtueña García, R. Combina Fescina, A. Vázquez González, C. Ludwig, A. González Suarez, J. López Fernández, C. Huergo Lora, S. Ocio León, L. Lago García
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- European Psychiatry / Volume 64 / Issue S1 / April 2021
- Published online by Cambridge University Press:
- 13 August 2021, p. S540
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Introduction
Schizoaffective disorder is a psychotic disorder of controversial nosological entity. Affective symptomatology and psychotic features of varying intensity coexist simultaneously in him throughout evolution. The lack of consensus on the existence of this entity determines its diagnostic delay and the absence of specific treatment guidelines.
ObjectivesTo review the diagnostic criteria for schizoaffective disorder and the published scientific evidence on the efficacy and safety of the different therapeutic options available. To analyze the efficacy of a multidisciplinary treatment plan implemented in an intensive follow-up program, presenting the evolution of a clinical case.
MethodsTo review the psychiatric history and psychopathological evolution of a patient diagnosed with schizoaffective disorder from the beginning of an intensive follow-up program in a day center to the present. Review the existing scientific evidence on the usefulness of the treatments used in this nosological entity.
ResultsThis is a longitudinal and retrospective study of a clinical case in which the areas for improvement are analyzed before implementing a multidisciplinary therapeutic program and the favorable results obtained today. Currently, the patient is euthymic and attenuated and chronic positive and negative symptoms persist that do not interfere with his functionality.
ConclusionsFrom the implementation of an individualized, personalized and multidisciplinary maintenance treatment plan, an overall improvement in psychopathological stability and functional recovery is observed. Among the psychopharmacological options in this patient, Paliperidone Long Acting Injection (PLAI) stands out for its long-term efficacy and safety.
Relationship between suicide attempts of repetition and dependence to the cocaine: Report of clinical case
- M. Valtueña García, L. Lago García, R. Combina Fescina, A. Vázquez González, C. Ludwig, A. González Suarez, J. López Fernández, C. Huergo Lora, S. Ocio León, R. Arias Martino
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- European Psychiatry / Volume 64 / Issue S1 / April 2021
- Published online by Cambridge University Press:
- 13 August 2021, pp. S645-S646
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Introduction
People with borderline personality disorder are at higher risk of repeating suicidal behavior. At the same time, numerous publications have demonstrated the relationship between cocaine dependence and suicide attempts of repetition.
ObjectivesReview the relationship between cocaine addiction, borderline personality disorder and repeated suicide attempts. Present through a clinical case the effectiveness of a comprehensive and multidisciplinary therapeutic plan with different mental health devices.
MethodsTo review the psychopathological evolution of a patient with a diagnosis of borderline personality disorder; dependence to the cocaine; Harmful alcohol consumption and suicidal behavior from the beginning of follow-up in mental health services to the present. Review the existing scientific evidence on the relationship between cocaine addiction and repeated suicide attempts. Analyze the eficacy of the different treatments available.
ResultsThis is a longitudinal and retrospective study of the psychiatric history and evolution of a clinical case since the implementation of an individualized therapeutic program and the favorable results obtained. Intensive outpatient follow-up was carried out for high suicide risk and hospitalization in a psychiatric hospitalization unit, day care centre and therapeutic community.
ConclusionsAt present, the patient remains in abstinence with remission of suicidal ideation. The literature has shown the usefulness of intensive mental health follow-up programs to achieve remission of suicidal ideation and maintain abstinence from illegal substances.
DisclosureNo significant relationships.
Examining the association between exposome score for schizophrenia and functioning in schizophrenia, siblings, and healthy controls: Results from the EUGEI study
- Gamze Erzin, Lotta-Katrin Pries, Jim van Os, Laura Fusar-Poli, Philippe Delespaul, Gunter Kenis, Jurjen J. Luykx, Bochao D. Lin, Alexander L. Richards, Berna Akdede, Tolga Binbay, Vesile Altınyazar, Berna Yalınçetin, Güvem Gümüş-Akay, Burçin Cihan, Haldun Soygür, Halis Ulaş, Eylem Şahin Cankurtaran, Semra Ulusoy Kaymak, Marina M. Mihaljevic, Sanja Andric-Petrovic, Tijana Mirjanic, Miguel Bernardo, Gisela Mezquida, Silvia Amoretti, Julio Bobes, Pilar A. Saiz, Maria Paz García-Portilla, Julio Sanjuan, Eduardo J. Aguilar, Jose Luis Santos, Estela Jiménez-López, Manuel Arrojo, Angel Carracedo, Gonzalo López, Javier González-Peñas, Mara Parellada, Nadja P. Maric, Cem Atbaşoğlu, Alp Ucok, Köksal Alptekin, Meram Can Saka, Genetic Risk and Outcome of Psychosis (GROUP) investigators, Celso Arango, Micheal C. O’Donovan, Bart P. F. Rutten, Sinan Guloksuz
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- European Psychiatry / Volume 64 / Issue 1 / 2021
- Published online by Cambridge University Press:
- 19 March 2021, e25
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Background
A cumulative environmental exposure score for schizophrenia (exposome score for schizophrenia [ES-SCZ]) may provide potential utility for risk stratification and outcome prediction. Here, we investigated whether ES-SCZ was associated with functioning in patients with schizophrenia spectrum disorder, unaffected siblings, and healthy controls.
MethodsThis cross-sectional sample consisted of 1,261 patients, 1,282 unaffected siblings, and 1,525 healthy controls. The Global Assessment of Functioning (GAF) scale was used to assess functioning. ES-SCZ was calculated based on our previously validated method. The association between ES-SCZ and the GAF dimensions (symptom and disability) was analyzed by applying regression models in each group (patients, siblings, and controls). Additional models included polygenic risk score for schizophrenia (PRS-SCZ) as a covariate.
ResultsES-SCZ was associated with the GAF dimensions in patients (symptom: B = −1.53, p-value = 0.001; disability: B = −1.44, p-value = 0.001), siblings (symptom: B = −3.07, p-value < 0.001; disability: B = −2.52, p-value < 0.001), and healthy controls (symptom: B = −1.50, p-value < 0.001; disability: B = −1.31, p-value < 0.001). The results remained the same after adjusting for PRS-SCZ. The degree of associations of ES-SCZ with both symptom and disability dimensions were higher in unaffected siblings than in patients and controls. By analyzing an independent dataset (the Genetic Risk and Outcome of Psychosis study), we replicated the results observed in the patient group.
ConclusionsOur findings suggest that ES-SCZ shows promise for enhancing risk prediction and stratification in research practice. From a clinical perspective, ES-SCZ may aid in efforts of clinical characterization, operationalizing transdiagnostic clinical staging models, and personalizing clinical management.
A systematic review of potential habitat suitability for the jaguar Panthera onca in central Arizona and New Mexico, USA
- Eric W. Sanderson, Kim Fisher, Rob Peters, Jon P. Beckmann, Bryan Bird, Curtis M. Bradley, Juan Carlos Bravo, Melissa M. Grigione, James R. Hatten, Carlos A. Lopez González, Kurt Menke, Jennifer R. B. Miller, Philip S. Miller, Cristina Mormorunni, Michael J. Robinson, Robert E. Thomas, Sharon Wilcox
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In April 2019, the U.S. Fish and Wildlife Service (USFWS) released its recovery plan for the jaguar Panthera onca after several decades of discussion, litigation and controversy about the status of the species in the USA. The USFWS estimated that potential habitat, south of the Interstate-10 highway in Arizona and New Mexico, had a carrying capacity of c. six jaguars, and so focused its recovery programme on areas south of the USA–Mexico border. Here we present a systematic review of the modelling and assessment efforts over the last 25 years, with a focus on areas north of Interstate-10 in Arizona and New Mexico, outside the recovery unit considered by the USFWS. Despite differences in data inputs, methods, and analytical extent, the nine previous studies found support for potential suitable jaguar habitat in the central mountain ranges of Arizona and New Mexico. Applying slightly modified versions of the USFWS model and recalculating an Arizona-focused model over both states provided additional confirmation. Extending the area of consideration also substantially raised the carrying capacity of habitats in Arizona and New Mexico, from six to 90 or 151 adult jaguars, using the modified USFWS models. This review demonstrates the crucial ways in which choosing the extent of analysis influences the conclusions of a conservation plan. More importantly, it opens a new opportunity for jaguar conservation in North America that could help address threats from habitat losses, climate change and border infrastructure.
Examining the independent and joint effects of genomic and exposomic liabilities for schizophrenia across the psychosis spectrum
- L.-K. Pries, G. A. Dal Ferro, J. van Os, P. Delespaul, G. Kenis, B. D. Lin, J. J. Luykx, A. L. Richards, B. Akdede, T. Binbay, V. Altınyazar, B. Yalınçetin, G. Gümüş-Akay, B. Cihan, H. Soygür, H. Ulaş, E. Şahin Cankurtaran, S. Ulusoy Kaymak, M. M. Mihaljevic, S. Andric Petrovic, T. Mirjanic, M. Bernardo, G. Mezquida, S. Amoretti, J. Bobes, P. A. Saiz, M. Paz García-Portilla, J. Sanjuan, E. J. Aguilar, J. L. Santos, E. Jiménez-López, M. Arrojo, A. Carracedo, G. López, J. González-Peñas, M. Parellada, N. P. Maric, C. Atbaşoğlu, A. Ucok, K. Alptekin, M. Can Saka, Genetic Risk and Outcome of Psychosis (GROUP) investigators, C. Arango, M. O'Donovan, S. Tosato, B. P. F. Rutten, S. Guloksuz
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- Journal:
- Epidemiology and Psychiatric Sciences / Volume 29 / 2020
- Published online by Cambridge University Press:
- 17 November 2020, e182
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Aims
Psychosis spectrum disorder has a complex pathoetiology characterised by interacting environmental and genetic vulnerabilities. The present study aims to investigate the role of gene–environment interaction using aggregate scores of genetic (polygenic risk score for schizophrenia (PRS-SCZ)) and environment liability for schizophrenia (exposome score for schizophrenia (ES-SCZ)) across the psychosis continuum.
MethodsThe sample consisted of 1699 patients, 1753 unaffected siblings, and 1542 healthy comparison participants. The Structured Interview for Schizotypy-Revised (SIS-R) was administered to analyse scores of total, positive, and negative schizotypy in siblings and healthy comparison participants. The PRS-SCZ was trained using the Psychiatric Genomics Consortiums results and the ES-SCZ was calculated guided by the approach validated in a previous report in the current data set. Regression models were applied to test the independent and joint effects of PRS-SCZ and ES-SCZ (adjusted for age, sex, and ancestry using 10 principal components).
ResultsBoth genetic and environmental vulnerability were associated with case-control status. Furthermore, there was evidence for additive interaction between binary modes of PRS-SCZ and ES-SCZ (above 75% of the control distribution) increasing the odds for schizophrenia spectrum diagnosis (relative excess risk due to interaction = 6.79, [95% confidential interval (CI) 3.32, 10.26], p < 0.001). Sensitivity analyses using continuous PRS-SCZ and ES-SCZ confirmed gene–environment interaction (relative excess risk due to interaction = 1.80 [95% CI 1.01, 3.32], p = 0.004). In siblings and healthy comparison participants, PRS-SCZ and ES-SCZ were associated with all SIS-R dimensions and evidence was found for an interaction between PRS-SCZ and ES-SCZ on the total (B = 0.006 [95% CI 0.003, 0.009], p < 0.001), positive (B = 0.006 [95% CI, 0.002, 0.009], p = 0.002), and negative (B = 0.006, [95% CI 0.004, 0.009], p < 0.001) schizotypy dimensions.
ConclusionsThe interplay between exposome load and schizophrenia genetic liability contributing to psychosis across the spectrum of expression provide further empirical support to the notion of aetiological continuity underlying an extended psychosis phenotype.
Evidence, and replication thereof, that molecular-genetic and environmental risks for psychosis impact through an affective pathway
- Jim van Os, Lotta-Katrin Pries, Margreet ten Have, Ron de Graaf, Saskia van Dorsselaer, Philippe Delespaul, Maarten Bak, Gunter Kenis, Bochao D. Lin, Jurjen J. Luykx, Alexander L. Richards, Berna Akdede, Tolga Binbay, Vesile Altınyazar, Berna Yalınçetin, Güvem Gümüş-Akay, Burçin Cihan, Haldun Soygür, Halis Ulaş, Eylem Şahin Cankurtaran, Semra Ulusoy Kaymak, Marina M. Mihaljevic, Sanja Andric Petrovic, Tijana Mirjanic, Miguel Bernardo, Gisela Mezquida, Silvia Amoretti, Julio Bobes, Pilar A. Saiz, María Paz García-Portilla, Julio Sanjuan, Eduardo J. Aguilar, José Luis Santos, Estela Jiménez-López, Manuel Arrojo, Angel Carracedo, Gonzalo López, Javier González-Peñas, Mara Parellada, Nadja P. Maric, Cem Atbaşoğlu, Alp Ucok, Köksal Alptekin, Meram Can Saka, Celso Arango, Michael O'Donovan, Bart P. F. Rutten, Sinan Guloksuz
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- Psychological Medicine / Volume 52 / Issue 10 / July 2022
- Published online by Cambridge University Press:
- 19 October 2020, pp. 1910-1922
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Background
There is evidence that environmental and genetic risk factors for schizophrenia spectrum disorders are transdiagnostic and mediated in part through a generic pathway of affective dysregulation.
MethodsWe analysed to what degree the impact of schizophrenia polygenic risk (PRS-SZ) and childhood adversity (CA) on psychosis outcomes was contingent on co-presence of affective dysregulation, defined as significant depressive symptoms, in (i) NEMESIS-2 (n = 6646), a representative general population sample, interviewed four times over nine years and (ii) EUGEI (n = 4068) a sample of patients with schizophrenia spectrum disorder, the siblings of these patients and controls.
ResultsThe impact of PRS-SZ on psychosis showed significant dependence on co-presence of affective dysregulation in NEMESIS-2 [relative excess risk due to interaction (RERI): 1.01, p = 0.037] and in EUGEI (RERI = 3.39, p = 0.048). This was particularly evident for delusional ideation (NEMESIS-2: RERI = 1.74, p = 0.003; EUGEI: RERI = 4.16, p = 0.019) and not for hallucinatory experiences (NEMESIS-2: RERI = 0.65, p = 0.284; EUGEI: −0.37, p = 0.547). A similar and stronger pattern of results was evident for CA (RERI delusions and hallucinations: NEMESIS-2: 3.02, p < 0.001; EUGEI: 6.44, p < 0.001; RERI delusional ideation: NEMESIS-2: 3.79, p < 0.001; EUGEI: 5.43, p = 0.001; RERI hallucinatory experiences: NEMESIS-2: 2.46, p < 0.001; EUGEI: 0.54, p = 0.465).
ConclusionsThe results, and internal replication, suggest that the effects of known genetic and non-genetic risk factors for psychosis are mediated in part through an affective pathway, from which early states of delusional meaning may arise.
A replication study of JTC bias, genetic liability for psychosis and delusional ideation
- Cécile Henquet, Jim van Os, Lotta K. Pries, Christian Rauschenberg, Philippe Delespaul, Gunter Kenis, Jurjen J. Luykx, Bochao D. Lin, Alexander L. Richards, Berna Akdede, Tolga Binbay, Vesile Altınyazar, Berna Yalınçetin, Güvem Gümüş-Akay, Burçin Cihan, Haldun Soygür, Halis Ulaş, Eylem S. Cankurtaran, Semra U. Kaymak, Marina M. Mihaljevic, Sanja S. Petrovic, Tijana Mirjanic, Miguel Bernardo, Gisela Mezquida, Silvia Amoretti, Julio Bobes, Pilar A. Saiz, Maria P. García-Portilla, Julio Sanjuan, Eduardo J. Aguilar, Jose L. Santos, Estela Jiménez-López, Manuel Arrojo, Angel Carracedo, Gonzalo López, Javier González-Peñas, Mara Parellada, Nadja P. Maric, Cem Atbaşoğlu, Alp Ucok, Köksal Alptekin, Meram C. Saka, Celso Arango, Michael O'Donovan, Bart P.F. Rutten, Sinan Gülöksüz
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- Journal:
- Psychological Medicine / Volume 52 / Issue 9 / July 2022
- Published online by Cambridge University Press:
- 13 October 2020, pp. 1777-1783
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Background
This study attempted to replicate whether a bias in probabilistic reasoning, or ‘jumping to conclusions’(JTC) bias is associated with being a sibling of a patient with schizophrenia spectrum disorder; and if so, whether this association is contingent on subthreshold delusional ideation.
MethodsData were derived from the EUGEI project, a 25-centre, 15-country effort to study psychosis spectrum disorder. The current analyses included 1261 patients with schizophrenia spectrum disorder, 1282 siblings of patients and 1525 healthy comparison subjects, recruited in Spain (five centres), Turkey (three centres) and Serbia (one centre). The beads task was used to assess JTC bias. Lifetime experience of delusional ideation and hallucinatory experiences was assessed using the Community Assessment of Psychic Experiences. General cognitive abilities were taken into account in the analyses.
ResultsJTC bias was positively associated not only with patient status but also with sibling status [adjusted relative risk (aRR) ratio : 4.23 CI 95% 3.46–5.17 for siblings and aRR: 5.07 CI 95% 4.13–6.23 for patients]. The association between JTC bias and sibling status was stronger in those with higher levels of delusional ideation (aRR interaction in siblings: 3.77 CI 95% 1.67–8.51, and in patients: 2.15 CI 95% 0.94–4.92). The association between JTC bias and sibling status was not stronger in those with higher levels of hallucinatory experiences.
ConclusionsThese findings replicate earlier findings that JTC bias is associated with familial liability for psychosis and that this is contingent on the degree of delusional ideation but not hallucinations.
The longitudinal effect of antipsychotic burden on psychosocial functioning in first-episode psychosis patients: the role of verbal memory
- Alejandro Ballesteros, Ana M. Sánchez Torres, Jose López-Ilundáin, Gisela Mezquida, Antonio Lobo, Ana González-Pinto, Laura Pina-Camacho, Iluminada Corripio, Eduard Vieta, Elena de la Serna, Anna Mané, Miquel Bioque, Lucía Moreno-Izco, Ana Espliego, Ruth Lorente-Omeñaca, Silvia Amoretti, Miguel Bernardo, Manuel J. Cuesta, PEPs Group
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- Psychological Medicine / Volume 51 / Issue 12 / September 2021
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- 24 April 2020, pp. 2044-2053
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Background
Previous literature supports antipsychotics’ (AP) efficacy in acute first-episode psychosis (FEP) in terms of symptomatology and functioning but also a cognitive detrimental effect. However, regarding functional recovery in stabilised patients, these effects are not clear. Therefore, the main aim of this study is to investigate dopaminergic/anticholinergic burden of (AP) on psychosocial functioning in FEP. We also examined whether cognitive impairment may mediate these effects on functioning.
MethodsA total of 157 FEP participants were assessed at study entry, and at 2 months and 2 years after remission of the acute episode. The primary outcomes were social functioning as measured by the functioning assessment short test (FAST). Cognitive domains were assessed as potential mediators. Dopaminergic and anticholinergic AP burden on 2-year psychosocial functioning [measured with chlorpromazine (CPZ) and drug burden index] were independent variables. Secondary outcomes were clinical and socio-demographic variables.
ResultsMediation analysis found a statistical but not meaningful contribution of dopaminergic receptor blockade burden to worse functioning mediated by cognition (for every 600 CPZ equivalent points, 2-year FAST score increased 1.38 points). Regarding verbal memory and attention, there was an indirect effect of CPZ burden on FAST (b = 0.0045, 95% CI 0.0011–0.0091) and (b = 0.0026, 95% CI 0.0001–0.0006) respectively. However, only verbal memory post hoc analyses showed a significant indirect effect (b = 0.009, 95% CI 0.033–0.0151) adding premorbid IQ as covariate. We did not find significant results for anticholinergic burden.
ConclusionCPZ dose effect over functioning is mediated by verbal memory but this association appears barely relevant.