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While extensive research exists on general pornography consumption, there is limited focus on the consumption of non-preferred sexual content and its potential associated discomfort. In 2019, a total of 1,133 Spanish men aged between 18 and 40 years (M = 24.78; SD = 5.91) completed a questionnaire regarding their consumption of male–female, female–female, and male–male pornography, the attentional focus, as well as the discomfort they experienced when aroused by such materials. The results were analyzed based on five groups of sexual attraction, ranging from “exclusively heterosexual” to “exclusively gay.” Regardless of sexual attraction, men reported consuming and experiencing arousal by all three types of pornography. Exclusively heterosexual men primarily consumed and were aroused by male–female and female–female pornography, while exclusively gay men preferred male–female and male–male pornography. Men with nonexclusive sexual attraction, especially bisexual men, exhibited high levels of consumption and arousal across all types of pornography evaluated. When watching male–female pornography, exclusively heterosexual men reported focusing more on women, exclusively gay men on men, and men with nonexclusive attractions on interactions among individuals. Male–male pornography material caused the most discomfort. These findings illustrate the variety of experiences of consumption and arousal by pornography, even from featuring non-preferred sexual activities. The study also highlights the associated discomfort, particularly with male–male pornography. Further exploration is needed to understand the phenomenon behind this discomfort, such as internalized desires, and to promote a more flexible understanding of sexual identities to support inclusive and healthy sexual health practices.
Toxoplasmosis, caused by the obligate intracellular parasite Toxoplasma gondii, is one of the most prevalent zoonotic parasitic infections worldwide. When acquired during pregnancy, T. gondii can be transmitted to the fetus, with clinical outcomes influenced by gestational age at time of infection and the parasite’s genotype. Prenatal screening enables the detection of maternal seroconversion and offers a critical window for intervention. In Uruguay, despite mandatory serological screening during pregnancy, national data on T. gondii seroprevalence and maternal seroconversion have not been updated in two decades. In addition, the genetic diversity of local strains remains poorly characterized. In this study, we analysed publicly available serological data from pregnant individuals attending Uruguay’s largest public maternity hospital between 2019 and 2023. We found that seroprevalence has modestly declined from 50% (reported in 1998) to 45.5%, with a congenital transmission rate of 0.58%. Clinical analysis of affected newborns revealed chorioretinitis as the predominant manifestation. To investigate parasite diversity, we performed genotyping of T. gondii strains using in silico PCR-RFLP following molecular detection. Our findings revealed substantial genetic diversity, including novel allele combinations not previously described in the region. These results highlight both the continued public health burden and the evolving genetic landscape of T. gondii in Uruguay. Our findings underscore the need to strengthen surveillance and prevention strategies for congenital toxoplasmosis in South America.
In Spain and other European countries, patients coming to the emergency room (ER) are usually classified as “organic” or “psychiatric” on arrival, but this may be complicated when psychiatric history is present as the focus can be misplaced (Leeman. IJPM 1975;6(4):544-40; Alam et al. Psychiatr. Clin. North Am. 2017;40(3):425–33).
Objectives
To describe three cases seen in the psychiatric emergency room (PER) in which triage errors occurred and to review whether it is widespread for psychiatric patients with organic pathology or in need of medical care to be wrongly triaged.
Methods
We retrospectively reviewed three cases seen in the PER of Hospital Clínic in July 2023 in which triage errors happened. Triage error was considered when patients triaged directly to the PER presented symptoms that either needed medical treatment or required medical clearance before being considered purely psychiatric.
Results
Case 1: A 27-year-old woman with history of depressive syndrome was triaged for a speech disturbance that had occurred fifteen minutes after intercourse. After being evaluated, she was referred to neurology where she was diagnosed with an acute ischaemic stroke in left middle cerebral artery territory, requiring thrombectomy and posterior admission to neurology.
Case 2: A 50-year-old man with history of alcohol use disorder was brought to the PER after saying that “he was seeing people doing magic” at home. When evaluated, significant distal tremor, tachycardia and hypertension were observed, being compatible with withdrawal symptoms, so he was transferred to the ER. There he was monitored and treated, finally requiring admission to internal medicine due to persistent symptoms.
Case 3: A 26-year-old man with history of substance use disorder was triaged for loss of consciousness and “spasms”. After evaluation, he was transferred to the ER, where organic screening was carried out, being oriented as a probable tonic-clonic seizure and discharged with outpatient follow-up.
Conclusions
The cases presented are instances in which somatic diseases in patients pre-labelled with psychiatric histories were wrongly assumed to be recurrences of their psychiatric disorders. In all cases, they needed to be re-examined by the corresponding medical specialty and required diagnostic tests, in two cases hospital admission was needed. Emergency physicians and emergency psychiatrists often disagree on how to medically clear patients (Alam et al. Psychiatr. Clin. North Am. 2017;40(3):425–33; Janiak et al. JEM. 2012;43(5):866–70), some authors have even proposed protocols for doing this in a more systematic way (Shah et al. JEM. 2012;43(5):871–5). To avoid a delay in diagnosis and treatment and the consequences that may result from it, establishing guidelines for proper triage of patients with psychiatric history should be considered.
Bipolar disorder (BD) is a chronic and recurrent disease characterized by acute mood episodes alternated with periods of euthymia. The available literature postulates that a biphasic dysregulation of mitochondrial bioenergetics might be observed in BD.
Objectives
We aimed to explore differences in in vivo mitochondrial respiration (1) intra-individually: longitudinally within patients during an acute mood episode of BD and after clinical remission, and (2) inter-individually: between patients with BD on depressive or manic episodes and healthy controls (HC).
Methods
Patients admitted to our acute psychiatric ward with a manic episode or bipolar depression were recruited. Different mitochondrial oxygen consumption rates (OCRs) were assessed during the acute episode (T0) and after clinical remission (T1) in one million of peripheral blood mononuclear cells (PBMC): Routine, Leak, ETC and Rox. They were measured as picomoles of oxygen per million cells (pmol O2/million). This experiment was also conducted in HC. High-resolution respirometry was performed at 37°C by polarographic oxygen sensors in a two-chamber Oxygraph-2k system. Manic and depressive symptoms were assessed using standardized psychometric scales. Oxygen consumption capacity was compared (1) intra-individually, during acute episodes and after clinical remission, and (2) inter-individually, during acute manic and depressive episodes, and in HC. Statistical analyses were performed with SPSS, GraphPad and R Statistics.
Results
20 patients with BD (15 manic, 5 depressed) and 10 HC were included. A significant increase in the maximal oxygen consumption capacity (ETC) was observed in clinical remission (27.4 ± 17.4) compared to the acute episodes (21.1 ± 11.7, p = 0.001), which remained significant after subtracting Rox from the other rates (p = 0.001). At T1, patients admitted with a manic episode tended to show higher mean ETC (31.2 ± 18.7) compared with T0 (24.1 ± 12.0, p = 0.074); the tendency persisted after Rox subtraction (p = 0.076). Patients admitted with a depressive episode also showed higher ETC means in T1 (16.3 ± 3.8) compared to T0 (12.1 ± 3.4), but there were not significant differences (p = 0.231). When HC, manic and depressive patients at T0 were compared between them, significant differences were observed in ETC (H =8.5; p =0.014) and Rox (H =13.8; p = 0.001). After Rox deduction, differences in ETC remained (H =11.7; p = 0.003). Individuals with bipolar depression showed lower ETC rates (12.1 ± 3.4) than those with a manic episode (24.1 ± 12.0; t = -3.5, p = 0.003), which was also found after Rox deduction (p = 0.001).
Conclusions
In both manic and depressive episodes in BD, mitochondrial respiration might be reduced and increase after clinical remission. Further studies with larger samples will allow to confirm these results and also to identify potential mitochondrial state-dependent biomarkers.
Disclosure of Interest
A. Giménez-Palomo Grant / Research support from: AGP is supported by a Rio Hortega 2021 grant (CM21/00094) from the Spanish Ministry of Health financed by ISCIII and cofinanced by Fondo Social Europeo Plus (FSE+)., M. Guitart-Mampel: None Declared, A. Meseguer: None Declared, M. Valentí: None Declared, L. Bracco: None Declared, H. Andreu: None Declared, E. Vieta: None Declared, G. Garrabou: None Declared, I. Pacchiarotti: None Declared
Current evidence has hypothesized the involvement of mitochondrial dysfunction during the acute episodes of BD compared to symptomatic remission. So far, no studies have compared mitochondrial and bioenergetic functions both in-vivo (respiratory parameters) and ex-vivo (cellular respiration) in different phases of the disease in the same individuals.
Objectives
This multidisciplinary pilot study aims at assessing bioenergetic and mitochondrial intra-individual differences between manic and euthymic states.
Methods
Four patients with a manic episode admitted to our acute psychiatric ward were recruited. Bioenergetic parameters were measured at admission (T0) and after symptomatic remission (T1).
At admission (T0) and before discharge (T1), HAMD and YMRS total scores were obtained. For the assessment of cellular respiration, polymorphonuclear cells were obtained by a Ficoll density gradient centrifugation procedure. To determine oxygen consumption (at T0 and T1), a million of living peripheral blood mononuclear cells (PBMC) were used. High-resolution respirometry was performed at 37°C by polarographic oxygen sensors in a two-chamber Oxygraph-2k system.
Specific oxygen uptakes (Routine: basal oxygen consumption; Proton Leak: oxygen consumption not coupled to ATP synthesis; and ETC: maximal capacity of the electron transport chain) rates were obtained using mitochondrial chain inhibitors and uncouplers. Oxygen consumption was normalized for protein concentration. Results are expressed as picomoles of oxygen per millilitre (pmol O2/s*μg prot).
Also, a constant work rate exercise test was performed on a cycle ergometer and basal and effort respiratory variables were measured.
Statistical analysis was performed with the SPSS v. 25.0 and GraphPad. Results were expressed as means and SD. Nonparametric tests (Mann–Whitney, Pearson) were used to determine differences (significant at p value <0.05).
Results
One patient was a man and three patients were women, with a mean age of 28 years old. HAMD initial and final mean scores were 11.0 and 7.0, and mean YMRS scores were 21.5 and 7.0 respectively.
Results from mitochondrial oxygen consumption revealed that mean basal oxygen consumption tended to be higher in T1 (0.98±0.45) than in T0, and maximal respiratory capacity was significantly increased in T1 (2.26±0.33; p=0.028) compared to T0.
Mean lactate levels and pH levels were similar in T0 and T1. Scales scores were not correlated to different pH or lactate changes after the effort task. Higher initial oxygen consumption was significantly correlated to higher maximal capacity (p<0.05) in T0 and T1.
Image:
Conclusions
Our preliminary results suggest that mania could imply lower oxygen consumption capacity, which should be confirmed in future studies. A bigger study is planned to determine changes in bioenergetic patterns and capacity for aerobic response in manic and depressive episodes.
Suicide is a serious public health problem since it accounts for nearly 900,000 deaths each year worldwide. Globally in 2019, 10.7 persons out of 100,000 died by suicide. Psychiatric disorders are related to an overwhelming proportion of these cases. In the last years, several specific interventions and action plans for suicide prevention have been implemented in a number of European countries.
Objectives
Our aim was to analyze recent epidemiologic trends of suicide mortality rates in Europe.
Methods
Annual national statistics of suicide mortality rates derived from Eurostat public databases from 2011 to 2019 were analyzed for 38 European countries. The suicide mortality rate was estimated per year/100,000 population. Linear regression models were used to study temporal trends of suicidal mortality. Analyses were performed using RStudio.
Results
Available data show a statistically significant reduction in suicide mortality rates from 2011 to 2019 in 15 European countries, and a significant increase for Turkey (ES=0.32, SD=0.06, p=0.037) (Fig 1). The greatest significant decrease was reported in Lithuania (ES=-1.42, SD=0.02, p=0.02), followed by Hungary (ES=-1.13, SD=0.11, p=0.0007), Latvia (ES=-0.76, SD=0.11, p=0.007), and Poland (ES=-0.73, SD=0.10, p=0.001). Italy reported the lowest significant reduction in suicide mortality rates (ES=-0.13, SD=0.018, p=0.003). The remaining 16 countries showed no significant changes in suicide mortality trends.
Image:
Conclusions
In the last years, Europe registered an overall reduction in reported suicide rates. However, more recent data (i.e., suicide rates after COVID-19 pandemic, age and sex-related effect on suicide rates) should be analyzed and used to implement future recommendations. Current and future suicide prevention strategies aim to contribute to a greater reduction of suicide rates in the different European countries.
When completing the medical record of a patient with bipolar disoder (BD), hardly anything is more impacting than a family history of completed suicide (FHS). In fact, FHS is a main risk factor for personal suicide attempts and death in this population. There are few modifiable protective factors against suicide in BD, such as lithium treatment and absence of substance abuse.
Objectives
We aimed to explore the relationship between a FHS and clinical characteristics in patients with BD. Given the impact that FHS has on the individual and on healthcare professionals, we hypothesized that it would modify behaviors towards a higher prevalence of the modifiable protective factors against suicide, namely more treatment with lithium and less drug addiction.
Methods
This is a cross-sectional study that included all patients with BD that were followed up in a specialised unit between 1998 and 2020. Only subjects with complete information on FHS were retained for the analysis. We assessed sociodemographic and clinical data and described it with measures of frequency, central tendency and dispersion. Differences between subjects with and without FHS were calculated with χ², Fisher’s exact test and Student’s t-test as appropriate. We set the significance level at p≤0.05. All tests were two-tailed.
Results
The sample consisted of 480 subjects with a mean age of 45.9 years (standard deviation 14.4, range 18-88), of which 54.4% (n=261) were women. 69.2% (n=332) had a diagnosis of BD type I and 30.8% (n=148) of BD type II. 77 subjects (16%) had a FHS. Regarding differences between groups, those with relatives who had committed suicide did not show statistically significant differences in terms of sociodemographic variables (age, gender, civil status, employment) or key clinical features (type of BD, illness duration, psychotic features, predominant polarity, rapid cycling, number of lifetime manic and depressive episodes, comorbid personality disorder), neither did they have a higher use of lithium (55.8% vs 59.3%, p=0.572) nor lower substance use disorder (10.9% vs 15.5%, p=0.34). Predictably, people with FHS had a higher prevalence of family history of mental and affective disorders (96.1% vs 70.9%, p<0.001; 86.3% vs 56.3%, p<0.001) and of stressful life events (71.6% vs 58.9%, p=0.05). Personal lifetime suicide attempts also tended to be higher (36.4% vs 26.7%, p=0.088).
Conclusions
Contrary to our hypothesis, in our sample of subjects with BD a FHS was not associated with a higher prevalence of the modifiable protective factors against suicide. Therefore, although suicide has a major impact both in families and healthcare professionals, our results suggest it does not modify attitudes towards prevention in a real-life scenario. The main limitation of our study is its cross-sectional design, which does not allow for causal inference. In conclusion, there is room for improvement in the fight against suicide.
Few studies have investigated the level of planning of pregnancy among women with mental disorder and associated risk factors.
Objectives
The purpose of this study was to determine the associated factors to UP and psychopathological consequences.
Methods
A cross sectional study was conducted at the Perinatal Mental Health Unit of the Hospital Clínic in Barcelona. The total sample comprised 675 consecutive pregnant women with diagnosis of mental disorder (DSM-IV criteria), seen between January 2006 and December 2018. Clinical, psychometric and socio-demographic variables were collected at the first visit. Pregnancy planning was assessed by a question “Was this pregnancy planned?” with three possible answers: 1) Yes, it was planned and has been well received; 2) No, it was not planned but it has been well received; and 3) No, it was an accident. Response 1 was coded as “planned pregnancy” and responses 2 and 3 as “Unplanned Pregnancy”.
Results
38.4% of the sample had an UP. Younger age, lower levels of education, Latin-American population, multiparity, financials problems and poor relationship with the partner were associated with UP in women with mental disorder. The mean EPDS and STAI scores and the presence of self-harming thoughts were significantly higher in women with UP.
Conclusions
UP was associated with more depressive and anxious symptoms and more self-harming thoughts. It is necessary to promote reproductive health care for women with mental disorders and to take into account their reproductive life plan, especially in those with risk factors described.
Valproic acid (VPA) is considered a well-tolerated antiepileptic drug used in Bipolar Disorder as a mood stabilizer. Nevertheless, VPA has been related to several adverse effects. Neutropenia is included as a potential adverse effect, although in clinical practice it is not often measured with regularity.
Objectives
To report a case of a patient with Bipolar Disorder type 2 and Personality Disorder Cluster B treated with VPA with a neutropenia caused by VPA.
Methods
A 61-year-old woman assists to the outpatient psychiatric unit in order to a pharmacological treatment adjustment. A blood test is performed showing a decrease in the levels of neutrophiles in comparison with previous tests. Psychiatric history is revised finding and association between the prescription of VPA and the reduction of neutrophile levels. When this drug was removed, neutrophile levels had increased again up to normal levels.
Results
Due to the relationship between neutropenia and VPA treatment, we decided to discontinue this drug. At the beginning the patient doesn’t agree with the withdrawal of VPA treatment due to its effectiveness in her mood stabilization. Psychoeducation sessions are performed in order to explain risk and benefits of potentials treatment alternatives versus maintaining the same prescription. Finally the patient accepts the switch of the mood stabilizer treatment to oxcarbazepine with a good tolerability and effectiveness.
Conclusions
Periodical blood test monitoring is needed in order to study adverse effects as neutropenia in patients with VPA treatment.
Disclosure
The author has received support from Janssen-Cilag, Otsuka-Lundbeck, Italfármaco, Angelini Pharma and Casen Recordati; and declares no support related to the subject of this article.
Suicide is the most terrible outcome of bipolar disorders (BD). It impacts families and healthcare professionals deeply. Family history of suicide (FHS) is one of its main risk factors, whereas lithium treatment and absence of substance use disorders (SUD) are two of its few modifiable protective factors.
Objectives
To explore the relationship between FHS and clinical characteristics in BD. We hypothesized that FHS would be associated with less SUD, higher rates of lithium treatment and shorter duration of untreated illness (DUI).
Methods
Cross-sectional analysis of subjects with BD followed-up in a specialised outpatient unit (Barcelona, October’08-March’18). We described data with measures of frequency, central tendency and dispersion, and we used χ², Fisher’s test and t-tests for comparisons.
Results
The sample consisted of 83 subjects, 56.6% males, mean age 41.9 years (SD 12.7). 74.7% (n=62) had a diagnosis of BD-I and 25.3% (n=21) of BD-II. 11 subjects (13.3%) had FHS. Those with FHS did not show significant differences in sociodemographic data, DUI (58.5+/-60.4 vs 38.19+/-84.9 months, p=0.341), lithium use (72.7% vs 73.6%, p=0.95) or SUD (27.3% vs 23.6%, p=0.79). There were differences in terms of lifetime suicide attempts (54.5% vs 20.8%, p=0.026), family history of mental disorders (100% vs 69.4%, n=0.032).
Conclusions
Contrary to our hypothesis, FHS was not associated with the modifiable protective factors against suicide (namely, less SUD and more lithium prescription). Similarly, we did not find an association with earlier access to mental health services at symptom onset (DUP as proxy). Therefore, our results suggest FHS does not modify attitudes towards prevention.
Women experiencing postpartum mental illness have unique needs. Psychiatric Mother Baby Units (MBUs) can provide specialist in-patient care for mothers without separation from their baby. Since 2018, an innovative Mother-Baby Day Hospital (MBDH) have been developed and implemented in a public hospital in Spain, directed at the intensive, integral, and multidisciplinary treatment.
Objectives
The aim of the present study was to obtain preliminary data regarding its effectiveness in postpartum women with affective and anxiety disorders.
Methods
Thirty-three mothers and their babies with affective or anxiety disorders attended to MBDH CLINIC-BCN participated in the study. All women were assessed at admission, discharge, and 3 months follow-up. Primary outcomes were depression (EPDS) and anxiety symptoms (STAI-S), mother-infant bonding (PBQ) and functional impairment (HoNOs).
Results
At discharge, 100% of women no longer met the full criteria for the main diagnosis (PSR≥5). Significant improvements from admission to discharge were achieved in depression and anxiety symptoms, mother infant bonding and functional impairment. Clinical significance was also calculated. After treatment, mothers had greater autonomy for care their babies. Similar results were observed at 3 months follow-up. The MBDH was rated by mothers as an excellent quality program and they would recommend it.
Conclusions
This study found that multidisciplinary intervention at MBDH for postpartum women with affective or anxiety disorders is effective, not only for maternal psychopathology but also for maternal care and bonding. It is imperative to develop specialized devices that integrate the care of the dyad by professionals specialized in perinatal mental health.
The COVID-19 pandemic entailed several changes in health and medical assistance, economy, and lifestyle. In the Acute Psychiatric Ward of the Hospital Clínic of Barcelona, the implementation of restrictive measures was necessary in order to ensure patients’ safety.
Objectives
To compare clinical profiles and course of hospitalization of patients admitted before and during the COVID-19 lockdown in our Acute Psychiatric Ward.
Methods
All patients admitted from January 7th to February 25th and from March 19th to May 7th of 2020 in the Acute Psychiatric Hospitalization Unit of Hospital Clínic of Barcelona, Spain, were retrospectively included for analysis and divided into two groups according to the period when they were admitted. Statistical analyses were performed using SPSS, 23.0 version.
Results
A total of 117 inpatients were included (73 admitted before lockdown and 44 during lockdown), being 50.4% male, with a mean age of 42.4 (SD 15.73). Patients from the first group presented a significantly higher proportion of antidepressants prescription at discharge (p<0.05) and more substance use disorders (p<0.05). Regarding the lockdown group, 51% of patients manifested COVID-19-related stress. Time of hospitalization was significantly lower in the lockdown group (p<0.05), even though a significantly higher proportion of patients were discharged at home (p<0.05) compared with the first group.
Conclusions
The situation of lockdown led to a series of changes in our unit and also in the profile of patients admitted, having shorter admissions, lower prescription of antidepressants, and often COVID-related stress. These differences should be considered in future situations in which restrictive measures may be necessary.
Preeclampsia is a new-onset hypertension with new-onset proteinuria after 20 weeks gestation. Scarce evidence regarding psychiatric effects of preeclampsia is available.
Objectives
To describe a case of a pregnant 24 year-old patient with a premature cesarean section in context of severe preeclampsia and dissociative symptoms.
Methods
Patient referred to a third-level hospital for cesarean section due to a severe preeclampsia at week 32, in whom magnesium sulfate, labetalol perfusion and betamethasone are started. In the puerperium period only labetalol up to 300 mg/6h is maintained.
Results
Due to the appearance of pulsating headache and photophobia, a computerized tomography is conducted, showing bilateral insular and occipital hypodensity related to vasogenic edema. High blood pressure is maintained (177/121 mmHg) despite antihypertensive treatment. A magnetic resonance imaging and an ophthalmologic exam do not show significant abnormalities and blood pressure is stabilized with treatment. However, the patient refers new-onset auditory imperative hallucinations and suicide thoughts, being referred to our Acute Psychiatric Ward for clinical assessment and intervention. Treatment with risperidone 2 mg is started. The day after her admission, she does not refer psychotic symptoms, explaining depersonalization symptoms in the previous 5 days, seeing herself having to choose a knife to commit suicide. After discharge, she maintains reiterative dreams in which she falls down from a building, not presenting dissociative symptoms during the day.
Conclusions
Further evidence regarding psychiatric effects of preeclampsia is needed in order to study the consequences of edema and pharmacological treatment. Blood pressure and psychiatric symptoms monitoring after preeclampsia should also be considered.
Clozapine is a second-generation antipsychotic agent approved for treatment-resistant schizophrenia and risk reduction of recurrent suicidal behavior in schizophrenia and schizoaffective disorder. Given the known negative consequences of relapse of severe mental disorders for both mother and infant, the maintenance of clozapine during pregnancy is recommended.1 Studies of pregnancy regarding to clozapine have demonstrated a heterogenous range of neonatal and infant complications.2
Objectives
To evaluate neonatal and infants outcomes of clozapine exposure in pregnancy.
Methods
We report three cases of infants exposed to clozapine politherapy throughout pregnancy. The dose range for all women on clozapine was 200-600 mg/day. Infants were evaluated between 4-6 months of chronological age with the Bayley-III infant development scale (BSID-III)3 and with the Alarme Détresse Bébé Scale (ADBB)4 for the detection of early-signs of withdrawal.
Results
Women remained stable during pregnancy but presented obesity and gestational diabetes. Clozapine Newborn were born to term by caesarean section due to breech presentation (N=2) or instrumental delivery due to loss of fetal well-being (N=1). They presented normal weight (3500-3800 gr). Two presented Apgarmin1-5 9/10 and one Apgarmin1-5 6/8 which showed lethargy and low alertness during the first weeks of life. All showed normal capacity for sociability, reciprocity and development of language and communication. However, one baby had scores in the low normal zone for cognition and another for motor skills.
Conclusions
The infant’s risks of clozapine exposure during pregnancy should be discussed with women and weighed against those associated with other treatments and/or with untreated severe mental illness.
In Argentina, the mosquito Aedes aegypti (L.) (Diptera: Culicidae) is distributed from subtropical to temperate climates. Here, we hypothesized that the expansion of Ae. aegypti into colder regions is favoured by high-phenotypic plasticity and an adaptive inhibition of egg hatching at low temperatures. Thus, we investigated the hatching response of eggs of three populations: one from a subtropical region (Resistencia) and two from temperate regions (Buenos Aires City and San Bernardo) of Argentina. Eggs collected in the field were raised in three experimental colonies. F1 eggs were acclimated for 7 days prior to immersion at 7.6 or 22°C (control eggs). Five immersion temperatures were tested: 7.6, 10.3, 11.8, 14.1 and 16°C (range of mean winter temperatures of the three localities). A second immersion at 22°C was performed 2 weeks later to assess the inhibition to hatch under favourable conditions. After the first immersion, we compared the proportions of hatched eggs and dead larvae among treatment levels, whereas after the second immersion we compared the hatching response among the three populations. The factors that most influenced the egg hatching response were the geographical origin of the populations and the immersion temperature, but not the acclimation temperature. The proportions of hatching and larval mortality at low temperatures were higher for Resistencia than for Buenos Aires and San Bernardo, whereas the hatching response at ambient temperature was lower for San Bernardo than for Buenos Aires and Resistencia. The results support the hypothesis that populations from colder regions show an adaptive inhibition of egg hatching.
Alzheimer’s disease (AD) is associated with brain oxidative stress, inflammation, and cerebrovascular disease. Structural and functional abnormalities in cerebral microvasculature have been described in both patients and animals models. New tools and biomarkers for the detection of the disease are still emerging, such as Arterial Spin Labeling (ASL), a magnetic resonance imaging (MRI) technique for non-invasive measurements of cerebral blood blow (CBF) whose alteration may be involved in AD-pathogenesis. Nevertheless, more studies in the field are needed since both hypoperfusion and hyperperfusion in different brain areas are reported and can be involved in different brain functions. Recently, we reported in our colony of 3xTg-AD mice modeling Alzheimer’s disease a higher number of β-amyloid plaques in the hippocampus and entorhinal cortex in middle-aged females and extensive regions of hypoxia which were not seen in males. In the present study, we evaluated CBF in five different brain regions (hippocampus, cortex, striatum, caudate putamen and amygdala) in older male and female surviving until very advanced-stages of disease and as compared with age-matched counterparts with normal aging. AD-phenotype was evaluated by a comprehensive screening of three main functional impairments: physical (frailty), BPSD-like and cognitive deficits. CBF was measured using MRI-ASL and meaningful correlations between AD-phenotype and CBF were performed to better understand the relation between the level of perfusion and frailty, the BPSD-like behaviors and cognitive impairments. The results indicated sex- and brain region-associated changes in CBF. Among all, 3xTg-AD female mice survivors had increased CBF in cortex and hippocampus as compared with their wildtype counterparts. Here, we also report, for the first time, asymmetry between left -right hemispheres in the female’s cortex, in the hippocampus of control males and 3xTg-AD females, as well as in the striatum of control females. Cortex was the area that better correlated with behavior, with asymmetry being associated with worse memory performance. Moreover, hemisphere CBF asymmetry in limbic system was related with copying-with-stress strategies and associated locomotor activity in anxiety tests. The present study suggests a potential compensatory hemodynamic mechanism in end-of-life dementia which is sex- and brain region dependent and can be target for pharmacological and non-pharmacological interventions.
The aging process is associated with a deterioration of the physiological systems, especially the homeostatic (nervous, immune and endocrine) systems with the consequent increase in morbidity and mortality. With the aging population, increasing number of studies focus on lifestyle interventions to slow down these aging derangements. Here, animal models can be useful to assess their long-term effects and potential value taking into advantage their shorter life span. In a previous work, old animals beneficed of 2 months of continuous cohabitation with adult, with improvements on behaviour, immune function and redox state as well as a higher longevity. However, their adult counterparts showed impairments in these parameters. In the present study, this social strategy was modified with the aim to improve the homeostatic systems in both the old and the adult animals.) Animals of the experimental group with “two old ICR-CD1 female mice cohabiting 15 minutes each day for 2 months with five adult mic” were studied and compared to adult and old controls. After this time, mice were submitted to a behavioural battery of tests to analyse their sensorimotor abilities, anxiety-like behaviours, and exploratory capacities. Peritoneal leukocytes were collected and several immune functions, oxidative and inflammatory stress parameters as well as catecholamine concentrations were assessed. When the adult mice reached old age the same parameters were again analysed. The life span of each animal was also recorded. Several mice of each group were sacrificed to obtain plasma and the hormone oxytocin was evaluated. The results show that old mice presented an improvement of behavioural capacities, immune functions and lower oxidative and inflammatory stress after the two months of social interaction with adult animals, and consequently they exhibited an extended life span. Adult mice, in general, did not show any changes after social interaction, but when they achieved old age an improvement of all the parameters studied and of longevity was observed in comparison with those mice that never had a social interaction with old animals. In conclusion, a short social interaction between old and adult individuals can be an excellent strategy for improving in both the health state and longevity.
Chronic Fatigue Syndrome (CFS) is characterized by severe fatigue associated with pain, sleep disturbance, attentional impairment and headaches. Evidence points towards a prominent role for Central Nervous System in its pathogenesis, and alterations in serotoninergic and dopaminergic neurotransmission have been described.
Attention-deficit Hyperactivity Disorder (ADHD) courses with inattention, impulsivity, and hyperactivity. It affects children and persists into adulthood in 50% of patients. Dopamine transporter abnormalities lead to impaired neurotransmission of catecholaminergic frontal-subcortical-cerebellar circuits.
Objectives
To describe the prevalence of ADHD in a sample of CFS patients, and the clinical implications of the association.
Aims
To study the relationship between CFS and ADHD.
Methods
The initial sample consisted of 142 patients, of whom 9 were excluded because of severe psychopathology or incomplete evaluation. All the patients (age 49 ± 87; 94,7 women) received CFS diagnoses according to Fukuda criteria. ADHD was assessed with a diagnostic interview (CAADID), ADHD Rating Scale and the scale WURS, for childhood diagnose. The scales FIS-40, HAD, STAI and Pluthik Risk of Suicide (RS) were administrated.
Results
38 patients (28,8%) were diagnosed of childhood ADHD (4 combined, 22 hyperactive-impulsive, 12 inattentive) and persisted into adulthood in 28 (21,1%; 5 combined, 4 hyperactive-impulsive, 19 inattentive). There were no differences in Fukuda criteria profile and FIS-40 between groups. ADHD patients scored higher in HAD-Anxiety (9,88 ± 4,82 vs. 12,57 ± 3,49; p = 0,007), HAD-Depression (9,69 ± 4,84 vs. 12,04 ± 4,53; p = 0,023), STAI-E (30,55 ± 14,53 vs. 38,41 ± 11,35; p = 0,012), and RS (6,13 ± 3,48 vs. 8,49 ± 3,07; p = 0,002).
Conclusions
ADHD is frequent in CFS patients and it is associated with more severe clinical profile.
Our standpoint for characterization of any drugs on sleep is based on three issues: 1) Assessment of drug induced effects on sleep in healthy young volunteers leads to unbiased conclusions about the pharmacological effects of a compound per se. 2) Working hypothesis underlying the scenario states that electrophysiological changes are directly related to the biochemical changes each compound induces in the brain. 3) Only changes on sleep macrostructure do not provide enough information for documenting pharmacological effects on sleep EEG. From a pharmacological perspective, second generation antipsychotic, as a class, may be defined in part as agents with simultaneously serotonin 2A and dopamine 2 antagonist properties. However, no two agents have exactly identical properties, including multiple pharmacologic actions at serotonin and dopamine receptor subtypes and multiple pharmacologic actions at other neurotransmitter receptors. Current knowledge about the parts played by the different transmitters on the control of the sleep-wake continuum, although important, is far for being clearly established. Availability of EEG sleep data on the effects of antipsychotic drugs is more than sparse. No attempts have been made to determine short-term, intermediate-term, or long-term effects. Questions of rebound following withdrawal or of tolerance have not been addressed. Up to date the most robust finding dealing with sleep EEG changes and second generation of antipsychotics is the increase of slow wave sleep (SWS) after drugs, as olanzapine, which show potent 5HT2A/2C antagonism activity. Further adequately designed, justified and analysed studies are certainly needed to advance in the field.
To assess the psychometric properties of the Spanish version of the Index of Spouse Abuse (ISA), and validate it against external criteria of intimate partner violence (IPV).
Methods:
A case control, transversal study was designed. Spanish version of the ISA was administered to 405 women (223 controls and 182 IPV cases). Spanish items weights were developed. Internal consistency was assessed through Cronbach's alfa, and factor structure by means of principal component analysis (PCA). Receiver operating characteristic (ROC) analysis was used to validate the ISA against external criteria.
Results:
PCA analysis yielded two factors that accounted the 69% of variance, and reproduced partially the original factors: physical (ISA-P) and non-physical (ISA-NP). Internal consistency coefficients oscillated between 0,88 and 0,98. For the ISA global score, the AUC value for detecting IPV was 0,99; and 0,89 for detecting physical IPV. The optimal cut-off scores were 13 for detecting IPV, and 15 for detecting physical IPV. For the ISA subscales, 6 was the optimal cut-off score for the ISA-P, and 13 was the optimal cut-off for the ISA-NP.
Conclusions:
The Spanish version of the ISA is a valid and reliable instrument for detecting and measuring the intensity of the IPV in Spanish women population.