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Fully relativistic particle-in-cell (PIC) simulations are crucial for advancing our knowledge of plasma physics. Modern supercomputers based on graphics processing units (GPUs) offer the potential to perform PIC simulations of unprecedented scale, but require robust and feature-rich codes that can fully leverage their computational resources. In this work, this demand is addressed by adding GPU acceleration to the PIC code Osiris. An overview of the algorithm, which features a CUDA extension to the underlying Fortran architecture, is given. Detailed performance benchmarks for thermal plasmas are presented, which demonstrate excellent weak scaling on NERSC's Perlmutter supercomputer and high levels of absolute performance. The robustness of the code to model a variety of physical systems is demonstrated via simulations of Weibel filamentation and laser-wakefield acceleration run with dynamic load balancing. Finally, measurements and analysis of energy consumption are provided that indicate that the GPU algorithm is up to ${\sim }$14 times faster and $\sim$7 times more energy efficient than the optimized CPU algorithm on a node-to-node basis. The described development addresses the PIC simulation community's computational demands both by contributing a robust and performant GPU-accelerated PIC code and by providing insight into efficient use of GPU hardware.
Cognitive dysfunction has been reported in acute psychiatric patients for a long time and has profound implications for the management of severe mental disorders. The Screen for Cognitive Impairment in Psychiatry (SCIP) is a scale developed for screening cognitive deficits. This tool is simple and easy to administer.
Objectives
To translate and to validate to Portuguese the SCIP.
Methods
The accepted back-translation method is employed for translating from English into Portuguese. One-hundred individuals in good health were characterized using demographic questionnaires and a neuropsychological battery. Subsequently, the new version of the scale was administered on two distinct occasions with a minimum one-week gap between them.
Results
High internal consistencies as well as strong correlations with comparable neuropsychological tests were obtained.
Conclusions
The results obtained from the Portuguese version of SCIP are in line with those from the English version. Effectively, SCIP serves as a key instrument for the initial assessment of cognitive function. Its characteristics, particularly its conciseness and independence from a technological platform, allow it to be integrated into clinical practice. Our aim is to use this version and apply it to different pathologies, comparing patients with controls. This will allow us to study different patients and apply it to our population.
The World Health Organization declared the coronavirus outbreak a pandemic on March 11th 2020. Since then, the containment measures were leading to increasing mental health problems in the general population and worsening of some pre‑existing psychiatric conditions. To our knowledge, there are few studies characterizing the impact of the COVID‑19 pandemic on psychiatric hospitalizations across the world.
Objectives
We aimed to compare the number and characteristics of the hospitalizations in the mental health department of a Portuguese psychiatric hospital from March 2nd 2019 to October 31st 2019 with those that occurred in the same period in 2020.
Methods
We conducted a retrospective observational study including all patients admitted to hospital during these periods (n=805). Sociodemographic data, clinical characteristics and information about the context of hospitalization were collected. Statistical analysis was performed using t Student Test, Mann‑Whitney and Chi‑square.
Results
In the pandemic period there was a marked reduction in the number of psychiatric hospitalizations. There was a statistically significant difference in the median length of stay and in the percentage of involuntary hospitalizations between the two periods. In 2019, the most frequent International Classification of Diseases (10th Revision) diagnostic categories were F30‑F39 (mood disorders) and in 2020 were F20‑F29 (schizophrenia, schizotypal and delusional disorders).
Conclusions
The reorganization of services and the decrease in admissions through the emergency department may explain these results.
Sleep related disorders affect around 30% of people all over the world, and evidence shows that 10% require therapeutic intervention. Insomnia represents the most common disturbance of sleep, defined as the experience of poor sleep for at least 1 month. Most of primary insomnia can be prevented by a proper lifestyle and sleep hygiene rules. Regardless, hypnotic drugs and widely prescribed, and most times, long-term used, which is not recommended because of its negative side effects.
Objectives
Review the scientific evidence about effectiveness of plant extracts for insomnia, natural products with practically no side-effects, and thus be possible to reduce or even avoid the use of hypnotic drugs.
Methods
The Medline database through the Pubmed search engine was used with the following keywords: “insomnia” and “herbal compounds”.
Results
Valerian activity on sleep disturbances has been attributed to the presence of isovaleric acids and valepotriates with reported calming action and GABA reuptake inhibition with sedative effects. Considering the data presented in the literature, despite controversial and conflicting, several studies showed that valerian (160-600mg/day) improved sleep quality and reduced sleep latency and duration; also valerian seems more effective for chronic insomnia than acute episodes.
Hop has different properties: calming, sleep inducing, gastric secretion stimulating and spasmolytic.
Increasing GABAergic activity seems to be the main mechanism of action, thus inhibiting the central nervous system and also has demonstrated binding affinities to some of the melatonin and serotonin receptor. It’s sedative characteristics have been confirmed in a clinical trial in association with valerian, where sleep latency and quality were improved. However, monotherapy studies showed no relevant effectiveness in sleep.
Kava Kava plant showed promising results, in rats and humans, with decrease sleep latency, better sleep quality and recuperation after sleep. However, raised concern about its potential of hepatotoxicity.
There is also promising evidence of the lavender efficacy for sleep disorders in a wide variety of populations and diseases, it was actually mentioned to be as effective as lorazepam in adults with anxiety and sleeping problems. With studies with dose of 80mg it was observed a reduction in sleep awakenings, sleep duration and overall sleep quality and anxiety.
Conclusions
There is a clear preference from the patient to natural compounds, and with almost nonexistent side effects, some herbal derivates are showed to have positive effectiveness in mild insomnia, but nonetheless much more studies on this field are needed.
Although the issue of climate change usually brings thoughts of environmental impact and physical health concerns to our consciousness, climate change also affects people’s mental health. Nowadays there is an emerging condition about climate change anxiety (CCA), defined as negative responses associated with global warming, with apprehension and stress related to the anticipation of threats to the ecosystem and our species. It may include cognitive, emotional, and behavioral responses, for example, persistent worries, psychological distress, or sleep difficulties related to long-term consequences of climate change, and can result in functional impairment.
Objectives
A literature review to analyse the evidence, to be aware of individuals overconcerned about global warming, bring awereness and promote an appropriate seek of professional help when needed
Methods
Using the Medline database through the Pubmed search engine was used, with the keywords: “climate change anxiety”, “eco-anxiety”.
Results
Despite the lack of studies, CCA affects a substantial proportion, especially the younger population, aged from 16 to 25 years old worldwide. As a result of ecoanxiety, people are becoming anxious about their future and the future of the planet as we currently know it, the terrifying and at some extent uncertainty of it. It is documented the importance of green and blue spaces (water places) specially in urban areas for mental wellbeing – as our environment is quickly changing with the global warming, the reduction/disappearing of these areas are ongoing; besides this direct consequence, the disruption of these places results in feelings of loss due to changes to personally significant places a phenomenon known as ‘ecological grief’. Additionally, the occurrence of natural disasters like heatwaves, hurricanes, flooding, wildfire, and drought, raising concern and the socially-mediated impacts of forced migration and conflict caused by it. Self-reported presentations may include panic attacks, insomnia, obsessive thinking, and/or appetite changes caused by environmental concerns. If prolonged symptoms, depressive, anxious disease, post-traumatic stress disorder, among others can develop.
Conclusions
To reduce eco-anxiety individuals can take steps to reduce their carbon footprint, engage in activism and advocacy, bringing more awareness to the subjects and thus taking measures to mitigate the effects of climate change and protect the environment. It’s equal important to consider and address the mental health impacts of climate change, this additionally includes providing adequate emotional and psychological support to those affected.
Several authors have demonstrated the relevance of the therapist sensitivity to the affective expression of his client (Merten & Schwab, 2005; 150-158), as well as to his own emotional experience (Haynal-Raymond et al., 2005;142-148) in order to build a more effective therapeutic relationship, and results. An important source of information to decode the emotional expression hints is the face, and its expression (Ekman & Friesen, 1975; Russel & Fernández-Dolls, 1997;275-294). Despite common sense saying that context is relevant to understand the meaning of the emotional facial expression, the literature review shows inconsistent results.
Objectives
The main goal of this study was to evaluate the impact of clinical context over the perception of the emotional facial expression.
Methods
This study followed a within-subjects design, and its sample consisted of 60 clinical psychologists. 21 combinations of prototypical expression images with mixed emotional signals, and clinical information texts were presented to the participants. Then their judgement on the type of emotion displayed was requested. The presentation of the text-image pairs was randomized between three conditions: consistent, and non-consistent, and neutral.
Results
The results suggest that emotions are more easily recognized in the presence of a concordant context than a non-concordant or neutral one, and that the greater the similarity between the facial expression of the image presented and the face prototypically associated with the context, the greater the influence of the context.
However, In the recognition of mixed emotional signs, there was greater recognition of signs of anger in the facial expression, as a non-dominant emotion, when in the presence of the neutral story than of the story that agreed with the dominant emotion (sadness). There was also greater recognition of sadness, as a non-dominant emotion, in the presence of a story in agreement with fear than in the presence of a neutral story. There was also a statistically significant increase in the attribution of anger to images in which it is not present and whose dominant emotion is fear, when associated with a context of aggression vs. a neutral context.
It was also found that there was a significant decrease in the attribution of fear to the sadness-anger image (25%-75%) in the presence of the aggression context compared to the neutral and panic contexts.There was also a statistically significant decrease in the attribution of sadness to an image of fear in the neutral context compared to the other contexts (panic and aggression).
Conclusions
In conclusion, our study have shown an impact of context over overvaluation or the undervaluation of the emotional facial expression as well as either with prototypical expressions or the mixed emotional signals when referring to sadness, fear, and anger. Thus, mental health clinicians should consider the influence of these contexts.
Borderline Personality Disorder (BPD) and Attention-Deficit/Hyperactivity Disorder (ADHD), relatively common psychiatric pathologies (5% and 1-2% respectively), share several characteristics, specially impulsivity and emotional dysregulation. With different therapeutic approaches, it is therefore important to distinguish the entities for a correct approach to the patient. Clinical evidence has also demonstrated high comorbidity between two entities, and therefore this recognition is of equal relevance.
Objectives
Analyze the clinical evidence, in order to better understand the dynamics between the two pathologies as comorbid or differential diagnosis, for an appropriate approach to the patient.
Methods
Authors used the Medline database through the Pubmed search engine, with the keywords: “PBP”, “PHDA”.
Results
These two pathologies share impulsive and spontaneous actions with poor thinking about the consequences; nonetheless, ADHD individuals tend to show this impulsivity by being more impatiente when they have to wait, talking over other people, interrupting others; on the contrary, in BPD impulsivity can be showed more as self-harm behaviors.
As for the emotional dysregulation, that both entities share, in the comorbid case it is known that it is the most severe form. This characteristic is part of the central characteristics of BPD where these individuals experience intense and unstable emotions. They have difficulty regulating their emotions which can lead to rapid changes in mood, and they report feelings of emotional emptiness and difficulty in establishing stable relationships. As for ADHD individuals, despite present, it’s not a core symptom, as they have more control over their emotions, and have more adaptative cognitive strategies.
Attention deficit can be a core symptom of a subtype of ADHD and has not yet been reported in patients with PBP, except in comorbid situations. According to studies, 30-60% of patients with PBP report and score on attention deficit scales. Truth is both entities have intelectual disfunctionalities.
Results of genetic studies are very inconsistent, however epigenetic research and reseach focusing on hypothetized vulnerability genes or sites have been promising.
Conclusions
A complete clinical history is particularly important in these cases and sometimes difficult, as so, clinicians should be aware to prevent misdiagnosis and provide the best care for both disorders and the comorbidity. Given that treatment differs between both pathologies, psychotherapy in BPD, and the multimodal approach in ADHD, it is imperative to distinguish the two entities. In comorbid cases, a combination of the two therapies has demonstrated effectiveness but much more studies are needed.
Obsessive-compulsive disorder (OCD) is a chronic condition characterized by time-consuming and distressing obsessions and/or compulsions, often accompanied by avoidance behaviours. It is a highly prevalent and incident disorder that results in considerable disability and quality of life reduction.
Current pharmacological treatments are hindered by their delayed onset and the limited evidence on how to approach first and second line treatment-resistant patients.
Recent research showcased the involvement of glutamatergic pathways in the pathophysiology of OCD prompting research into the potential therapeutic use of ketamine, which binds to the N-methyl-D-aspartic acid receptor and acts as a non-competitive antagonist of glutamate.
Objectives
The aim of this study is to conduct a literature review on the use of ketamine and its enantiomers as a treatment for OCD and report a clinical case involving an OCD patient who experienced significant improvement following ketamine use.
Methods
A search was performed on PubMed using a combination of keywords and Medical Subject Headings terms, including “Ketamine”, “Esketamine” and “Obsessive-Compulsive Disorder”. Only studies that involved patients with OCD aged ≥18 years who had received ketamine or its enantiomers as an intervention and that reported treatment response using a validated scale were included.
Results
Nine studies were included, 4 case reports, 3 open-label trials and 2 randomized controlled trials, totalling 71 patients. Ketamine was administered intravenously in 7 studies and intranasally in the remaining 2. The results were heterogeneous, with some studies reporting no effect on obsessive-compulsive (OC) symptoms and others demonstrating significant and rapid improvement, albeit some only transitorily.
We present the case of a 42-year-old man who experienced OC symptoms since the age of 20 but was only formally diagnosed with OCD 3 years ago. During his first consultation, the patient described obsessive thoughts related to contamination and dirtiness, accompanied by handwashing rituals and avoidance behaviours (e.g., avoiding touching handles and switches). His Yale-Brown Obsessive Compulsive Scale (Y-BOCS) score was 29. Escitalopram was initiated with a progressive dose titration, resulting in partial improvement (Y-BOCS 23). In a follow-up appointment, the patient disclosed that he had purchased and self-administered a single intravenous dose of 2g of ketamine 2 months earlier for recreational use. This led to an immediate and significant improvement of his OC symptoms. Subsequent re-evaluation 4 months later confirmed that he remained asymptomatic (Y-BOCS 2).
Conclusions
Ketamine may be a therapeutic alternative for OCD patients who are treatment resistant due to its rapid anti-obsessional effect. Further studies with improved designs and larger sample sizes are warranted to better assess the efficacy of ketamine in OCD treatment.
This paper focuses on modeling surrender time for policyholders in the context of life insurance. In this setup, a large lapse rate at the first months of a contract is often observed, with a decrease in this rate after some months. The modeling of the time to cancelation must account for this specific behavior. Another stylized fact is that policies which are not canceled in the study period are considered censored. To account for both censoring and heterogeneous lapse rates, this work assumes a Bayesian survival model with a mixture of regressions. The inference is based on data augmentation allowing for fast computations even for datasets of over millions of clients. Moreover, frequentist point estimation based on Expectation–Maximization algorithm is also presented. An illustrative example emulates a typical behavior for life insurance contracts, and a simulated study investigates the properties of the proposed model. A case study is considered and illustrates the flexibility of our proposed model allowing different specifications of mixture components. In particular, the observed censoring in the insurance context might be up to $50\%$ of the data, which is very unusual for survival models in other fields such as epidemiology. This aspect is exploited in our simulated study.
Several studies describe that the coexistence of a substance use disorder with another psychiatric condition or “dual disorder” (DD) is associated with a worse evolution at all levels, including a greater burden of medical illnesses and greater mortality.
Objectives
To describe the presence of DD and related factors in patients admitted to a General Hospital that required assessment by a psychiatry service.
Methods
A descriptive study that includes patients admitted to the Hospital del Mar in Barcelona for all medical-surgical reasons and attended by the specific addiction psychiatry consultation service between January 2016 and October 2021. Sociodemographic and clinical data are collected including the history of consumption and the diagnosis of dual disorder. Chi-square test was used for comparison between groups.
Results
The sample was 1796 patients (Women: 345. Mean age: 50.3 years; SD: 12.6). 43.7% of the sample presented DD, with axis 1 disorders being the most frequent. There was an association of DD to factors as: being woman (54 vs 41.2% p <0.001), HIV positive serologies (54 vs 42.7% p <0.001), being homeless (49 vs 31.7% p <0.001) and cocaine consumption compared to other substances (53.4 vs 39.8% p <0.001).
Conclusions
In our sample, almost half of patients had DD. The representation of women was significantly lower, however they presented a higher proportion of DD. In this study we describe an association of DD with other biopsychosocial problems, and further studies are necessary to determine in which sense they are related and optimize patient care.
The use of internet among children and adolescent has risen in the last decade. In addition, suicide is the second cause of death among adolescents. Previous research have indicated the relation between Problematic Internet Use (PIU) and different mental health problems. Nonetheless there is a lack of studies analyzing the relation between suicide behaviour and PIU
Objectives
The main objective of the present work was to analyze the relation between Problematic Internet Use and suicide behaviour and depression in adolescents
Methods
A total of 1036 adolescents (450 males) were randomly selected. Mean age was 15,21 (SD = 1,23). The Adolescent Behavioural Suicide Scale SENTIA, The Reynolds Adolescent Depression Scale Short Form (RADS-SF), and The Compulsive Internet Use Scale (CIUS) were used. A Manova was performed with two groups (risk and non-risk to PIU) as independent variables and suicide and depression scores as dependent variables
Results
The results revealed a statiscally signifficant association between PIU and both depression and suicide behaviour (λ = 0.245, F(2,81,000) = 15.549, P ≤ 0.001, η² = 0.116). In particular, adolescents at a higher risk for PIU obtained higher scores on suicide behaviours and depression.
Conclusions
Results found in the present study reveal that adolescents have moderate prevalence rates for PIU. Also adolescents at risk for PIU with a total of more than 3 hour sof internet use everyday were at a higher risk for suicide. Prevention strategies should be devote to intervene in internet use as it maybe a variable affecting suicide behaviour.
There is emerging evidence of heterogeneity within treatment-resistance schizophrenia (TRS), with some people not responding to antipsychotic treatment from illness onset and a smaller group becoming treatment-resistant after an initial response period. It has been suggested that these groups have different aetiologies. Few studies have investigated socio-demographic and clinical differences between early and late onset of TRS.
Objectives
This study aims to investigate socio-demographic and clinical correlates of late-onset of TRS.
Methods
Using data from the electronic health records of the South London and Maudsley, we identified a cohort of people with TRS. Regression analyses were conducted to identify correlates of the length of treatment to TRS. Analysed predictors include gender, age, ethnicity, positive symptoms severity, problems with activities of daily living, psychiatric comorbidities, involuntary hospitalisation and treatment with long-acting injectable antipsychotics.
Results
We observed a continuum of the length of treatment until TRS presentation. Having severe hallucinations and delusions at treatment start was associated shorter duration of treatment until the presentation of TRS.
Conclusions
Our findings do not support a clear cut categorisation between early and late TRS, based on length of treatment until treatment resistance onset. More severe positive symptoms predict earlier onset of treatment resistance.
Disclosure
DFdF, GKS, EF and IR have received research funding from Janssen and H. Lundbeck A/S. RDH and HS have received research funding from Roche, Pfizer, Janssen and Lundbeck. SES is employed on a grant held by Cardiff University from Takeda Pharmaceutical Comp
Ethnic disparities in treatment with clozapine, the antipsychotic recommended for treatment-resistant schizophrenia (TRS), have been reported. However, these investigations frequently suffer from potential residual confounding. For example, few studies have restricted the analyses to TRS samples and none has controlled for benign ethnic neutropenia.
Objectives
This study investigated if service-users’ ethnicity influenced clozapine prescription in a cohort of people with TRS.
Methods
Information from the clinical records of South London and Maudsley NHS Trust was used to identify a cohort of service-users with TRS between 2007 and 2017. In this cohort, we used logistic regression to investigate any association between ethnicity and clozapine prescription while adjusting for potential confounding variables, including sociodemographic factors, psychiatric multimorbidity, substance use, benign ethnic neutropenia, and inpatient and outpatient care received.
Results
We identified 2239 cases that met the criteria for TRS. Results show that after adjusting for confounding variables, people with Black African ethnicity had half the odds of being treated with clozapine and people with Black Caribbean or Other Black background had about two-thirds the odds of being treated with clozapine compared White British service-users. No disparities were observed regarding other ethnic groups, namely Other White background, South Asian, Other Asian, or any other ethnicity.
Conclusions
There was evidence of inequities in care among Black ethnic groups with TRS. Interventions targeting barriers in access to healthcare are recommended.
Disclosure
During the conduction of the study, DFdF, GKS, and RH received funds from the NIHR Maudsley Biomedical Research Centre. For other activities outside the submitted work, DFdF received research funding from the UK Department of Health and Social Care, Janss
Studies have shown ethnic inequalities in health, with a higher incidence of illnesses among people of some minoritised ethnic groups. Furthermore, it has been observed that people with severe mental illnesses have a higher risk for multimorbidity. However, no study has investigated ethnic disparities in comorbidity in people with a schizophrenia spectrum disorder.
Objectives
This study investigates potential ethnic disparities in physical health comorbidity in a cohort of people with psychosis.
Methods
Using a cross-sectional design, we identified service-users of the South London and Maudsley NHS Trust who were diagnosed with a schizophrenia spectrum disorder between 2007 and 2020. We assessed the prevalence of asthma, bronchitis, diabetes, hypertension, low blood pressure, overweight or obesity, and rheumatoid arthritis. Latent class analyses were used to investigate distinct profiles of comorbidity. Multinomial regression was then used to investigate ethnic disparities in these profiles. The regression model was adjusted for gender, age, neighbourhood deprivation, smoking and duration of care.
Results
On a sample of 23,418 service-users with psychosis, we identified two classes of comorbidity: low comorbidity and multiple comorbidities. Compared to the White British ethnicity, a higher risk for multiple comorbidities was observed for people with any Black background, Indian, Pakistani, Asian British, and mixed-race ethnicities. Furthermore, Black African women had a significantly higher risk for multiple comorbidities than their male counterparts.
Conclusions
Ethnic disparities are observed in multiple comorbidities among people with psychosis. Further research is needed to understand the impact of these disparities, especially in relation to mortality.
Research shows persistent ethnic inequities in mental health experiences and outcomes, with a higher incidence of illnesses among minoritised ethnic groups. People with psychosis have an increased risk of multiple long-term conditions (MLTC; multimorbidity). However, there is limited research regarding ethnic inequities in multimorbidity in people with psychosis. This study investigates ethnic inequities in physical health multimorbidity in a cohort of people with psychosis.
Methods
In this retrospective cohort study, using the Clinical Records Interactive Search (CRIS) system, we identified service-users of the South London and Maudsley NHS Trust with a schizophrenia spectrum disorder, and then additional diagnoses of diabetes, hypertension, low blood pressure, overweight or obesity and rheumatoid arthritis. Logistic and multinomial logistic regressions were used to investigate ethnic inequities in odds of multimorbidity (psychosis plus one physical health condition), and multimorbidity severity (having one or two physical health conditions, or three or more conditions), compared with no additional health conditions (no multimorbidity), respectively. The regression models adjusted for age and duration of care and investigated the influence of gender and area-level deprivation.
Results
On a sample of 20 800 service-users with psychosis, aged 13–65, ethnic differences were observed in the odds for multimorbidity. Controlling for sociodemographic factors and duration of care, compared to White British people, higher odds of multimorbidity were found for people of Black African [adjusted Odds Ratio = 1.41, 95% Confidence Intervals (1.23–1.56)], Black Caribbean [aOR = 1.79, 95% CI (1.58–2.03)] and Black British [aOR = 1.64, 95% CI (1.49–1.81)] ethnicity. Reduced odds were observed among people of Chinese [aOR = 0.61, 95% CI (0.43–0.88)] and Other ethnic [aOR = 0.67, 95% CI (0.59–0.76)] backgrounds. Increased odds of severe multimorbidity (three or more physical health conditions) were also observed for people of any Black background.
Conclusions
Ethnic inequities are observed for multimorbidity among people with psychosis. Further research is needed to understand the aetiology and impact of these inequities. These findings support the provision of integrated health care interventions and public health preventive policies and actions.
We describe the incidence of suicidality (2007–2017) in people with depression treated by secondary mental healthcare services at South London and Maudsley NHS Trust (n = 26 412). We estimated yearly incidence of ‘suicidal ideation’ and ‘high risk of suicide’ from structured and free-text fields of the Clinical Record Interactive Search system. The incidence of suicidal ideation increased from 0.6 (2007) to 1 cases (2017) per 1000 population. The incidence of high risk of suicide, based on risk forms, varied between 0.06 and 0.50 cases per 1000 adult population (2008–2017). Electronic health records provide the opportunity to examine suicidality on a large scale, but the impact of service-related changes in the use of structured risk assessment should be considered.
Behavioral and psychological symptoms of dementia (BPSD) are a heterogeneous group of clinical manifestations related to dementia, including apathy, depression, anxiety, delusions, hallucinations, disinhibition, sleep-wake cycle disturbances, aggression and agitation. BPSD have a negative impact on cognitive decline and increase complications.
Objectives
Review treatment management of BPSD including non-pharmacological and pharmacological options, but mainly interventional approaches, such as electroconvulsive therapy (ECT).
Methods
We conducted a search in PubMed and ClinicalKey with the terms: “Behavioral and psychological symptoms of dementia”; “Electroconvulsive therapy”.
Results
The vast majority of patients with dementia will develop one or more BPSD. The etiopathogenesis of BPSD is complex and multifactorial, with multiple direct and indirect factors, namely biological, psychological and social aspects and related to changes in cholinergic, dopaminergic, noradrenergic and serotoninergic circuits. Current guidelines recommend non-pharmacological interventions as the first-line approach for BPSD. Pharmacotherapy is often applied, but it carries out the risk of serious side-effects and pharmacologic interactions. There is now growing evidence that interventional approaches, such as ECT, could be safe and efficient when previous treatment options have been exhausted or ineffective, with few contraindications and transient/limited adverse effects.
Conclusions
BPSD represent a heterogeneous group of non-cognitive symptoms and behavior that affects most of dementia patients. Combination of non-pharmacological and pharmacological interventions is the recommended therapeutic for BPSD. However, there is usually limited clinical improvement and issues related to tolerability and effectiveness. Currently, ECT is considered a safe and effective option.
Cognition heavily relies on social determinants and genetic background. Latin America comprises approximately 8% of the global population and faces unique challenges, many derived from specific demographic and socioeconomic variables, such as violence and inequality. While such factors have been described to influence mental health outcomes, no large-scale studies with Latin American population have been carried out. Therefore, we aim to describe the cognitive performance of a representative sample of Latin American individuals with schizophrenia and its relationship to clinical factors. Additionally, we aim to investigate how socioeconomic status (SES) relates to cognitive performance in patients and controls.
Methods
We included 1175 participants from five Latin American countries (Argentina, Brazil, Chile, Colombia, and Mexico): 864 individuals with schizophrenia and 311 unaffected subjects. All participants were part of projects that included cognitive evaluation with MATRICS Consensus Cognitive Battery and clinical assessments.
Results
Patients showed worse cognitive performance than controls across all domains. Age and diagnosis were independent predictors, indicating similar trajectories of cognitive aging for both patients and controls. The SES factors of education, parental education, and income were more related to cognition in patients than in controls. Cognition was also influenced by symptomatology.
Conclusions
Patients did not show evidence of accelerated cognitive aging; however, they were most impacted by a lower SES suggestive of deprived environment than controls. These findings highlight the vulnerability of cognitive capacity in individuals with psychosis in face of demographic and socioeconomic factors in low- and middle-income countries.
This study evaluated the effect of roughage:concentrate (R:C) ratio associated with a variable particle size of physically effective neutral detergent fibre (peNDF8) in the forage (Tifton-85 hay) on the performance, carcass traits and meat quality of lambs. Seventy-two 4-month-old, non-castrated Santa Ines male lambs (23.5 ± 2.32 kg BW) were distributed in a completely randomized design, in a 2 × 2 factorial arrangement [two peNDF8 hay particle sizes (13 and 6 mm) and two R:C ratios (700:300 and 500:500 g/kg DM total)]. DMI, DM, NFC and TDN digestibility's, N-intake and N-faecal excretion were affected by the R:C ratio (P < 0.05). However, the N-retained was not affected by the studied variables (P > 0.05). It was observed an interaction (P < 0.05) between the peNDF8 and R:C ratios for final BW, average daily gain (ADG), colour parameters and pH 24 h. The lower roughage ratio provided greater (P < 0.05) concentrations of C14:1, C16:1–cis9, C18:1–cis9, ΣMUFA, Σn–6:Σn–3 and hypocholesterolemic/hypercholesterolemic index, enzymatic activity Δ9desaturase-C16 and -C18. Lambs fed a lower roughage diet had improved performance and feed efficiency, however, presented reduced polyunsaturated fatty acids (PUFA) concentrations in the meat, especially Σn–3 family. Higher roughage diet and larger peNDF8 particle size improved the concentrations of PUFA while decreased Σn–6:Σn–3 ratio in meat. Larger peNDF8 particle size associated with higher roughage proportion, have reduced animal performance however, it increased protein concentration, a* and C* colour parameter without affecting fatty acids profile of Longissimus lumborum muscle.