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Schizophrenia is associated with a reduced life expectancy, not only because of suicide, but also medical causes such as cancer. Standardized mortality for cancer is higher in patients with schizophrenia, specially for lung, breast and colorectal locations (Ni et al, 2019). Other less frequent tumor locations have not been deeply studied.
Thir mortality gap could be related to a delayed diagnosis due to several reasons, such as lower inclusion in screening programs (Solmi et al, 2019). Since cervical cancer has a very efficient screening technique, women with schizophrenia and cervical cancer could have a worse prognosis because of a delayed diagnosis. However, there is a lack of research in this tumor location.
Objectives
To analyze clinical differences in women with cervical cancer with and without a diagnosis of schizophrenia.
Methods
We carried out a retrospective cohort analysis with adult patients from the cancer registry of Hospital del Mar diagnosed between 1997 and 2021. The information was crossed with the Minimum Basic Data Set (MBDS) to identify those cancer patients with a diagnosis of schizophrenia using International Classification of Diseases (ICD) 9 codes 295*. The sociodemographic variables were age and sex. The clinical oncological variables included tumor location, place of first conultation, stage, first treatment intention, vital status and place of decease. We used t-student for continuous data and Chi-squared test for categorical variables. We performed a post-hoc analysis using Bonferroni correction for multiple comparisons to identify specifically which categories were significantly different between groups.
Results
We identified 13 women with schizophrenia and cervical cancer, and 1354 women with cervical cancer without schizophrenia. The proportion of this location was higher in the schizophrenia group (8% of all cancers vs. 4.4%; p=0.03). The proportion of diagnoses through screening programm was significantly lower (7.7% vs 14.6%; p=0.04). There was a trend of fewer diagnoses in situ in patients with schizophrenia (30.8% vs 55.6%) and less radical intention as first treatment option (15.4% vs 3.5%) but without statistical significance in both cases. There was a higher proportion of deceased patients in the group with schizophrenia (46.2% vs 15% p=0.002), and also a higher proportion of deaths outside hospital facilities (30.8% vs 6.6%; p=0.003).
Image:
Conclusions
Women with schizophrenia receive less diagnoses of cervical cancer through screening programs and more in emergency facilities, which could lead to more advanced stages and fewer indication of radical treatments. This ultimately leads to a higher proportion of deaths, and more frequently outside of hospital facilities.
Our data supports the idea that the increased mortality for cancer is related to a delayed diagnosis. Women with schizophrenia need special care to ensure their inclusion in early detection programs for cancer.
Suicide attempts (SA) leading to highly lethal consequences have been associated with heightened suicide planning (Barker et al., 2022), along with deficits in social cognition (Levi-Belz et al., 2022). Hypomentalizing, characterized by excessive uncertainty regarding mental states, may contribute to heightened social withdrawal and an increased risk of SA (Nestor & Sutherland, 2022). Although certain studies have identified a connection between hypomentalizing profiles and self-harm (Badoud et al., 2015), research into the lethality of SA remains limited.
Objectives
This study aimed to explore the association between hypomentalizing and SA lethality.
Methods
Our study encompassed a cohort of 1,371 patients who committed a SA. We conducted assessments of mentalizing using the RFQ-8 instrument, and evaluations of suicidal ideation and behavior employing the CSRSS questionnaire. Demographic and clinical characteristics were compared using the T-student and Chi-square tests. To investigate the relationship between hypomentalizing and the SA lethality, we employed logistic regression models.
Results
Descriptive date are presented in Table 1. Our results show that hypomentalizing do not predict a higher SA lethality. Additionally, hypomentalizing increased the risk of SA planning (p≤0.001, B=-0.182), and SA planning predicted a higher SA lethality (see Table 2).Table 1.
Means Comparison for low and high lethality (N=1371)
Low lethality N=539
High lethality N=832
p value
Effect size
Age, mean (SD)
38.65 (15.65)
41.91 (15.37)
≤0.001
-0.209a
Female sex, N (%)
392 (72.7)
571 (68.6)
0.116
0.044b
Educational years, mean (SD)
12.45 (2.99)
12.43 (3.41)
0.890
0.0076a
Employed, N (%)
220 (41.2)
332 (40)
0.692
0.012b
Suicide Ideation, N (%)
475 (88.1)
742 (89.2)
0.541
0.016b
Suicide Planning, N (%)
159 (39.2)
400 (58.1)
≤0.001
0.183b
Number of attempts, mean (SD)
3.28 (5.48)
3.63 (5.74)
0.269
-0.169a
RFQ, mean (SD)
4.68 (1.27)
4.56 (1.32)
0.087
0.095a
Table 2.
Logistic regression analyses for high SA lethality (N=1371).
Univariate analysis
Multivariate analysis
OR
p value
OR
p value
Age
1.014 (1.007-1.021)
≤0.001
1.014 (1.005-1.022)
0.001
Female sex
0.820 (0.646-1.042)
0.105
Educational years
0.998 (0.965-1.031)
0.890
Employed
0.952 (0.763-1.187)
0.660
Suicide ideation
1.111 (0.790-1.562)
0.545
Suicide planning
2.150 (1.674-2.761)
≤0.001
2.183 (1.697-2.808)
≤0.001
Number SA
1.012 (0.990-1.034)
0.277
RFQ
0.929 (0.854-1.011)
0.088
Conclusions
While the association between hypomentalizing and high SA lethality was not significant, a discernible trend toward such relationship can be noted. Further studies examining the moderating effects of planning in the association between hypomentalizing and SA lethality are required.
A significant global increase in immigration has been reported due to humanitarian crisis around the world. Trauma exposure related to migration process is usually multiple and maintained in long-term which could provoke a cumulative effect. Moreover, several meta-analysis describe increased risk for psychosis in immigrant population. Despite this increase, there is a lack of research in non-refugee immigrants specially within those with psychotic disorder.
Objectives
The aim of the study is to describe and compare cumulative lifetime trauma between immigrants and locals with psychotic disorder.
Methods
Patients who have presented, according to DSM-V criteria, one or more non-affective psychotic episodes, were recruited in Acute and Chronic inpatients units at Hospital del Mar (Barcelona) from November 2019 to June 2021, leading to a total sample of 199 patients. Demographic characteristics of patients, clinical data and main pharmacological treatment were recorded through a questionnaire. Database information was completed with electronic medical records. Cumulative trauma Scale was used as instrument to assess lifetime trauma exposure frequency and distress. Comparative analysis was performed with IBM SPSS Statistics (Chicago INC) using Chi-Square Test for qualitative variables and t-Student test for continuous variables. Covariate adjustment with demographic and clinical variables was performed by ANOVA test. Study received local ethics committee approval “CEIC” (No. 2019/8398/I).
Results
From a total of 198 patients, 99 (50%) were immigrants and 99 (50%) locals. Immigrants were exposed on average 3 times more to lifetime traumatic events (16.12) when compared to locals (5.39). Likewise, distress intensity caused by trauma exposure had a mean of 97.13 in immigrants compared to 27.24 in locals. Traumatic events more present in immigrants’ group were “uprooting” (82.8%), “physical abuse” (76.8%), racial discrimination (74.7%), threat of death (74.7%) and life-threatening to close friend (72.2%) and in local group was school failure (42.4%), serious disease (38.4%), accidents (36.4%), physical abuse (36.4%) and interpersonal relationship rejection (36.4%).
Conclusions
According to our results there are important differences in cumulative traumatic events between immigrants and locals with psychotic disorder. Immigrants showed three times more lifetime traumatic events than locals. Likewise, immigrants presented significant higher level of distress caused by lifetime trauma and the nature of traumatic events was more severe. These results should be considered in order to offer better assessment and treatment to this population considering this comorbidity.
Alcohol consumption has devastating psychosocial and health consequences, with effects on cognitive functions. Recent studies have highlighted that patients with diagnosis of alcohol dependence syndrome have cognitive deficits in executive function, visuospatial ability, attention, procedural memory, verbal fluency and processing speed.
Objectives
The aim of this study is to characterize the sociodemographic and clinical patterns of the study sample and the cognitive deterioration severity and type.
Methods
A retrospective observational study was conducted with patients who had alcohol use disorder diagnosis at Dual Pathology Outpatient and Inpatient Unity, Psychiatry Department, at Coimbra Hospital and University Center, Portugal. Patients were admitted from 1/1/2016 and 30/09/2021, and submitted at neuropsychological structured evaluation. From the initial sample, major neurocognitive disorder, intellectual development disorder, cerebrovascular accident, traumatic brain injury and neurosurgery were excluded.
Results
The results show significant cognitive impairment in executive function, memory, verbal fluency and visuospatial ability.
Conclusions
Our results support the hypothesis of widespread impairment resulting from alcohol consumption. Cognitive impairment can limit the psychotherapeutic intervention, the adherence to pharmacological therapy and abstinence maintenance. The sheer presence of alcohol use disorder should encourage a neuropsychological evaluation. Further studies are needed in this area to prevent and outline an early intervention.
Gender is a factor influencing characteristics of substance use disorders. The Covid-19 pandemic has had a great impact in all areas of society, meaning a context of exceptionality in this population. Usually the male population represents a greater number of patients in general samples, so the descriptive characteristics of a global sample may not be representative in the case of women.
Objectives
- Identify if there are changes in the main substance of psychoactive substance use during the Covid-19 pandemic. - Identify possible divergences in characteristics of the general sample with respect to the sample made up of women.
Methods
It will be used data collected in the database of patients in follow-up with the addiction consultation service in two periods of 6 months, one prior to the pandemic situation due to Covid-19 and another corresponding to same period in 2020. A descriptive analysis is carried out by applying chi-square statistic, performing the analysis by subgroups according to gender.
Results
84.8% of total sample are men. Results show that there are no statistically significant differences between periods in main substance of consumption. Despite this, differential trends can be observed in the sample that correspond to women with respect to the global sample and that of men.
Conclusions
Taking into account the low number of women that make up the sample, the fact that differential trends are observed could indicate possible differences, which in case of increasing the sample size could acquire statistical significance and that this it would be specific to women subgroup.
COVID19 has brought several psychosocial stressors that are having an impact on global mental health. The impact of the pandemic on the incidence of First Episode of Psychosis (FEP) is not clear.
Objectives
To describe the clinical and sociodemographic characteristics of FEP patients diagnosed since the onset of the COVID19 pandemic and compare them with the equivalent period of the previous year.
Methods
We included all FEP patients attended at Parc de Salut Mar (Barcelona, Spain) from March 14, 2020 (when the state of emergency in Spain began) to December 31, 2020 with the same period of 2019. We assessed sociodemographic variables, duration of untreated psychosis (DUP), cannabis and alcohol use, psychiatric diagnosis, and psychiatric symptom scales. We performed a univariate analysis between the groups using U-Mann Whitney for continuous variables and Chi-Square for qualitative variables.
Results
A total of 20 FEP patients were diagnosed in each period. No differences were found in sociodemographic variables, scales scores or DUP. During COVID19 period there was a smaller proportion of cannabis users (60% vs 90%; p=0.028) and a tendency of lower weekly consumption (14.44 vs 16.42; p=0.096). There were more cases of BPD (25% vs 5%; p=0.077) and less of affective psychosis (0% vs 25%; 0.017).
Conclusions
During the COVID-19 pandemic we did not find an increase of FEP or more severe clinical presentations. However, we identified differences in the type of FEP that could be related to the psychosocial stressors of this time.
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.
Methods
8996 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.
Results
4809 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.
Conclusions
Our 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
Oncologic patients with schizophrenia have a higher mortality, which could be explained by a delayed diagnosis and a poor quality of the oncologic treatment (1). Some of the potential reasons are related with patient’s psychopathology, stigma, and barriers in access to medical care. An structured support during the oncologic treatment has been proposed to solve the difficulties that patients with schizophrenia can experience when handling with an oncologic process. (2).
Objectives
To illustrate two approaches for cancer accompaniment in patients with schizophrenia.
Methods
We present two case-report and literature research of the topic.
Results
Case A. A 49 y.o. woman diagnosed with a schizoaffective disorder. In the last years she had difficulties to manage her selfcare, so her mental health providers linked her to an individualized community nurse, who later played a crucial role in helping the patient during the diagnosis and treatment of a breast cancer. Case B. A 37 y.o. man diagnosed with schizophrenia, who was very integrated in a peer-support organization. After being diagnosed with a Lymphoma, he continued participating in all the group activities (theatre, collaborative radio, painting) until his decease. Sharing the process with other patients not only improved his quality of life but also helped the group to manage the grief.
Conclusions
- Individualized support with a mental health nurse could enhance the communication between the oncologist and mental health providers, improve the symptoms management, and allow psychological support. - Peer-support can prevent social isolation, improve the quality of life and the management of the oncologic treatment.
Migration is a highly defining life event which can lead to mental distress. It constitutes an overall risk factor for psychiatric disorders. However, psychotherapeutic treatment in immigrant patients is considered to be more complex, and the outcome appears to be less favorable than in patients without a migration background.
Objectives
The aim of this study is to compare psychotherapy assessment between immigrant and non-immigrant psychotic patients in Barcelona.
Methods
Patients who have presented, according DSM-V criteria, one or more non-affective psychotic episodes, were recruited in Acute and Chronic inpatients units at Hospital del Mar (Barcelona), leading to a total sample of 77 patients. Demographic characteristics of patients, clinical data and main pharmacological treatment were recorded through a questionnaire. Database information was completed with electronic medical records. Comparative analysis was performed with IBM SPSS using Chi-Square and t-Student test
Results
From a total of 77 patients, 43 were immigrants and 34 were non-immigrants. From the total immigrants only 30,2% received psychotherapy compared to 79,4% from the non-immigrants. The most prevalent therapy received in both groups was cognitive behavioural therapy. From the immigrants group only 2,3% received psychoeducation compared to 11,8% from the non-immigrant group.
Conclusions
According to our results, there are important and significant differences in psychotherapy assessment in migrant psychotic patients. In order to improve the mental health treatment of immigrant patients, the reasons for this poor outcome need to be investigated. These results should be considered by clinicians in order to design assessment program for this population.
Meta-analytic evidence suggests that migrants have higher risk for psychotic disorders. Likewise, growing evidence relate developmental trauma (emotional, sexual, physical abuse and neglect in childhood or adolescence) as a causal factor for psychotic symptoms. However, few studies examine developmental trauma in migrant populations.
Objectives
The aim of this study is to describe and compare developmental trauma exposure prevalence between immigrant and non-immigrant psychotic patients in Barcelona.
Methods
Patients who have presented, according DSM-V criteria, one or more non-affective psychotic episodes, were recruited in Acute and Chronic inpatients units at Hospital del Mar (Barcelona), leading to a total sample of 77 patients. Demographic characteristics of patients, clinical data and main pharmacological treatment were recorded through a questionnaire. Developmental trauma exposure was assessed by Childhood Trauma Questionnaire (CTQ). Comparative analysis was performed with IBM SPSS using Chi-Square Test and t-Student test.
Results
From a total of 77 patients, 43 were immigrants and 34 were non-immigrants. Exposure to traumatic events showed significant differences between immigrants and non-immigrant in Child emotional abuse (64,4% immigrants, 35,3% non-immigrant), Child physical abuse (51,2% immigrants, 14,7% non-immigrant), Child Sexual Abuse (41,9% immigrants, 11,8% non-immigrant) and physical neglect (62,8% immigrants, 26,5% non-immigrant). Emotional neglect exposure was no significant between both groups. Total mean CTQ score was 37,53 in immigrants group and 52,60 in non-immigrant group.
Conclusions
According to our results, there are important and significant differences in developmental trauma exposure between immigrant and non-immigrant psychotic patients. These results should be considered by clinicians in order to design assessment program for this population.
The prevalence of social anxiety is estimated of 7-12% of the general population and 18% of university student. Social anxiety has a high prevalence of psychiatry and personality comorbidity. At age of 18-25 years old 80% of social anxiety cases have onset. To detect social anxiety at that age maybe important to avoid chronicity of the illness.
Aims:
To study personality traits associated with social anxiety in university students.
Methods:
We designed a cross-sectional study at the Autonomous University of Barcelona. Student were recruited by an advertisement. All student signed the informed consent. We collected: Socio-demographic data, personal and family psychiatry history, and the Liebowitz Anxiety Scale (LSAS) and the Temperament and Character Inventory of Cloninger. We defined as a social anxiety group a LSAS ≥50 total score.
Results:
Five hundred ninety-one students enter in the study. Final sample after excluded those who did not filled the rating scales was 574 participants: 75% were women, mean age (SD): 22.7 (5.3), 156 (124 women/32 men), 26% had social anxiety. Eighteen percent had family and 22% personal psychiatry history. The personality profile of the social anxiety group was: high harm avoidance (HA) (p< .001), low novelty seeking (NS) (p< .001), and low self-directedness (SD) (p< .001).
By logistic regression, after corrected by sex, age, personal and family psychiatry history, HA (OR=1.118; 95%CI=1.081-1.155), NS (OR=0.954;95%CI=0.927-0.982) and SD (OR=0.957;95%CI=0.930-0.985) predicted social anxiety. R2Nagelkerke=0.442. Hosmer-Lemeshow test (p>.05).
Conclusions:
A profile of high HA, low NS and SD personality dimensions may predict those university students with social anxiety.
A prospective study in treatment-resistant schizophrenic patients was performed over 10 years to evaluate the therapeutic response to clozapine and the variables related to this treatment. Eighty schizophrenic and schizoaffective patients (according to Diagnostic and Statistical Manual [DSM]-IIIR criteria), considered as refractory (previously resistant to at least two different typical neuroleptics), were studied. The average dose of clozapine was 267 mg/d. The clinical variables considered were: Brief Psychiatric Rating Scale (BPRS), number of admissions before and after clozapine treatment and the Strauss-Carpenter scale as measures of efficacy; Premorbid Adjustment Scale (PAS), to assess personal and social adjustment before illness; Karolinska Personality Scale (KPS) to assess stable traits of personality; and the Simpson-Angus scale as a measure of extrapyramidal symptoms. Sixty percent of patients showed a significant improvement after clozapine treatment. Side-effects were mild and well tolerated, with no cases of haematological disturbance and only five withdrawals because of adverse events. The severity of the episode, according to BPRS score and anxiety as a personal trait, are related to good prognosis. Other relationships between improvement and clinical and demographic variables are discussed.
Chronic hepatitis C infection (CHC) represents a public health problem that affects around 3% of population worldwide. Pegylated Interferon-alpha (PegIFN-α) and Ribavirin (RBV) is the recommended treatment reaching about 40–80% of sustained virological response. However, a common treatment side-effect is induced-depression that impairs patient's quality of life and treatment adherence (1,2). This paper showed polymorphisms in HTR1A, NCR1, TPH2 genes as predictive variables of IFN-induced depression.
Material/methods
396 consecutive, euthymic, CHC outpatients treated with PegIFN-α/RBV were included. Patients were assessed at baseline, 4, 12, 24 and 48 weeks of treatment using PHQ and MINI-DSM-IV-R interview to diagnose depression. Survival analysis was performed. in the univariated analysis functions were compared using logrank test. Significative variables (0.1 level) were extracted for the multivariated model, using a Weibull regression model.
Results:
The incidence of induced-depression along the treatment was 39.4%. Polimorphisms on HTR1A (P = 0.0104), TPH2 (P = 0.0231) and NRC1 (P = 0.0702) genes predicted IFN-induced depression.
Conclusions:
Genes related with serotonine and inflamation system may play an important role in the pathogenesis of IFN-induced depression. Knowledge of predictive variables for IFN-induced depression may help to better manage patients at risk.
Schizophrenia is a developmental disorder that includes non-psychiatric abnormalities [2]. Metabolic abnormalities prior to antipsychotic treatment exist. The clozapine metabolic profile causes clozapine underuse in resistant schizophrenia [1].
Objectives
To correlate metabolic profile with psychiatric severity and compare the correlations between clozapine/non-clozapine patients.
Aims
To determine possible contributory factors to metabolic abnormalities in schizophrenia.
Methods
We cross-sectionally analyzed all patients from a Spanish long-term mental care facility (n = 139). Schizophrenic/schizoaffective patients were selected (n = 118). N = 31 used clozapine. We paired clozapine and non-clozapine patients by sex and age and assessed metabolic and psychopathologic variables.
We compared psychopathologic variables between patients with/without cardiometabolic treatment and the differences between clozapine/non-clozapine groups.
Results
We analyzed: 27 clozapine/29 non-clozapine patients. A total of 67,9% males with a mean age of 51.3 (SD 9.6) years. In the whole sample TG negatively correlated with Negative-CGI (r: −0,470, P: 0.049) and HDL-cholesterol correlates with Global-CGI(r: 0,505, P: 0.046). Prolactin correlated with the number of antipsychotics (r: 0.581, P: 0.023) and IMC (r: 0.575, P: 0.025). Clozapine group took less antipsychotics [Fisher (P: 0.045)] and had higher scores in total BRPS scale [t-Student (P: 0.036)]. They did not use more cardiometabolic treatment. There were no psychopathological differences between cardiometabolic treated/non-treated patients. In the non-cardiometabolic treated group (n = 35/62,5%), IMC negatively correlated with positive and total BPRS, positive, cognitive and global-CGI. We found negative correlations between metabolic parameters and psychopathology in clozapine (40%) and non-clozapine subgroups (60%). In the cardiometabolic treated group (n = 21/37,5%), we did not find these correlations in either of clozapine (61.9%) or non-clozapine (38.1%) subgroups.
Conclusions
Severity [2], prolactine [3] and treatment [1] could play a role in metabolic parameters. In our sample we found negative correlations between psychopathological and metabolic parameters.
References not available.
Disclosure of interest
The authors have not supplied their declaration of competing interest.
For resistant schizophrenia, the only approved treatment is clozapine. However, clozapine is underused, mainly due to its wide range of side-effects. Secondary effects differ amongst antipsychotics (Leucht et al., 2009). Despite that there is no good evidence that combined antipsychotics offer any advantage over the use of a single antipsychotic, combination increases the frequency of adverse events (Maudsley guidelines).
Objectives
To compare the side-effect profile between clozapine and non-clozapinepatients.
Aims
To provide evidence that clozapine patients do not show a worse side-effects profile.
Methods
We cross-sectionally analysed all patients from a Spanish long-term mental care facility (n = 139). Schizophrenic/schizoaffective patients were selected (n = 118) and their treatment was assessed, 31 patients used clozapine. We paired clozapine and non-clozapine patients by sex and age and assessed antipsychotic side effects and possible confounder variables.
Results
Our sample was 27 clozapine patients and 29 non-clozapine patients. 67,9% were male with a mean age of 51.3 (SD 9.6) years. For continuous variables: age, BMI, waist/hip, cholesterol, TG, glucose, prolactin, heart-rate, blood pressure, sleeping hours, the only statistical differences found were lower heart-rate (P = 0.001) in clozapine group and higher salivation subscale of SAS (P = 0.002) in clozapine group. For discrete variables: monotherapy, obesity, overweight, metabolic syndrome or possible confounders as propranolol, laxative, diet, antiglycemiant or insulin, fibrates or statins, antihypertensive or anticholinergic, no statistical differences were found.
Conclusions
We did not find differences in cardiometabolic parameters, which are the main barrier to prescribing clozapine, probably due to the concomitant use of other drugs in both groups.
Disclosure of interest
The authors have not supplied their declaration of competing interest.
It is known that pigs can acquire flavour preferences by brief social interactions with conspecifics that previously consumed a flavoured solid feed. However, there is no information about whether a flavoured solution could support flavour preferences through social transmission. Ninety-six pigs (49 days old) were housed in 12 pens (8 pigs/pen). Four animals per pen were randomly selected to act as observers and four as demonstrators. Demonstrator animals were temporarily moved to an empty pen where a protein solution was offered (porcine digestive peptides (PDPs), 4% weight/volume) with the addition of 0.075% aniseed (six pens) or garlic (six pens) powdered artificial flavours for 30 min. Afterwards, demonstrators were returned to interact with observer animals for 30 min. A choice test (30 min) between aniseed and garlic PDP was performed for each observer group after the interaction. Observers showed a higher intake of solutions previously consumed by their demonstrator conspecifics (648 v. 468 ml; SEM 61.36, P < 0.05). As with flavoured solid feeds, protein solutions containing artificial flavours can create preferences in pigs for those flavours through social transmission from conspecifics.
The hydrogeochemical characteristics of the Cabo de Gata coastal aquifer (southeastern Spain) were studied in an attempt to explain the anomalous salinity of its groundwater. This detritic aquifer is characterised by the presence of waters with highly contrasting salinities; in some cases the salinity exceeds that of seawater. Multivariate analysis of water samples indicates two groups of water (G1 and G2). Group G1 is represented in the upper part of the aquifer, where the proportion of seawater varies between 10 and 60%, whilst G2 waters, taken from the lower part of the aquifer, contain 60−70% seawater. In addition, hydrogeochemical modelling was applied, which reveals that the waters have been subject to evaporation between 25 and 35%. There was a good agreement between the modelled results and the observed water chemistry. This evaporation would have occurred during the Holocene, in a coastal lagoon environment; the resulting brines would have infiltrated into the aquifer and due to their greater density, sunk towards the impermeable base. The characteristics of this water enabled us to reconstruct the interactions that must have occurred between the coastal aquifer and the lagoon, and to identify the environmental conditions that prevailed in the study area during the Middle Holocene.
Negative mood states are composed of symptoms of depression and anxiety, and by a third factor related to stress, tension and irritability. We sought to clarify the nature of the relationships between the factors by studying twin pairs.
Method
A total of 503 monozygotic twin pairs completed the Depression Anxiety Stress Scales (DASS), an instrument that assesses symptoms of depression, anxiety and stress–tension. We applied a recently developed twin regression methodology – Inference about Causation from Examination of FAmiliaL CONfounding (ICE FALCON) – to test for evidence consistent with the existence of ‘causal’ influences between the DASS factors.
Results
There was evidence consistent with the stress–tension factor having a causal influence on both the depression (p < 0.0001) and anxiety factors (p = 0.001), and for the depression factor having a causal influence on the anxiety factor (p < 0.001).
Conclusions
Our findings suggest a critical role for stress–tension in the structure of negative mood states, and that interventions that target it may be particularly effective in reducing depression and anxiety symptoms.
Overweight and obesity have become epidemic worldwide and are linked to sedentary lifestyle and the consumption of processed foods and drinks. Citrate is a metabolite that plays central roles in carbohydrate and lipid metabolism. In addition, citrate is the additive most commonly used by the food industry, and therefore is highly consumed. Extracellular citrate can freely enter the cells via the constitutively expressed plasma membrane citrate transporter. Within the cytosol, citrate is readily metabolised by ATP-citrate lyase into acetyl-CoA – the metabolic precursor of endogenously produced lipids and cholesterol. We therefore hypothesised that the citrate ingested from processed foods and drinks could contribute to increased postprandial fat production and weight gain. To test our hypothesis, we administered citrate to mice through their drinking water with or without sucrose and monitored their weight gain and other metabolic parameters. Our results showed that mice receiving citrate or citrate+sucrose did not show increased weight gain or an increase in the weight of the liver, skeletal muscles or adipose tissues (AT). Moreover, the plasma lipid profiles (TAG, total cholesterol, LDL and HDL) were similar across all groups. However, the group receiving citrate+sucrose showed augmented fasting glycaemia, glucose intolerance and the expression of pro-inflammatory cytokines (TNF-α, IL-1β, IL-6 and IL-10) in their AT. Therefore, our results suggest that citrate consumption contributes to increased AT inflammation and altered glucose metabolism, which is indicative of initial insulin resistance. Thus, citrate consumption could be a previously unknown causative agent for the complications associated with obesity.