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BACKGROUND: Several factors shape the neurodevelopmental trajectory. A key area of focus in neurodevelopmental research is to estimate the factors that have maximal influence on the brain and can tip the balance from typical to atypical development. METHODS: Utilizing a dissimilarity maximization algorithm on the dynamic mode decomposition (DMD) of the resting state functional MRI data, we classified subjects from the cVEDA neurodevelopmental cohort (n = 987, aged 6-23 years) into homogeneously patterned DMD (representing typical development in 809 subjects) and heterogeneously patterned DMD (indicative of atypical development in 178 subjects). RESULTS: Significant DMD differences were primarily identified in the default mode network (DMN) regions across these groups (p < 0.05, Bonferroni corrected). While the groups were comparable in cognitive performance, the atypical group had more frequent exposure to adversities and faced higher abuses (p < 0.05, Bonferroni corrected). Upon evaluating brain-behavior correlations, we found that correlation patterns between adversity and DMN dynamic modes exhibited age-dependent variations for atypical subjects, hinting at differential utilization of the DMN due to chronic adversities. CONCLUSION: Adversities (particularly abuse) maximally influence the DMN during neurodevelopment and lead to the failure in the development of a coherent DMN system. While DMN's integrity is preserved in typical development, the age-dependent variability in atypically developing individuals is contrasting. The flexibility of DMN might be a compensatory mechanism to protect an individual in an abusive environment. However, such adaptability might deprive the neural system of the faculties of normal functioning and may incur long-term effects on the psyche.
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Experiencias Adversas de la Infancia , Encéfalo , Imagen por Resonancia Magnética , Humanos , Niño , Adolescente , Masculino , Femenino , Adulto Joven , Encéfalo/diagnóstico por imagen , Encéfalo/crecimiento & desarrollo , Encéfalo/fisiopatología , Adulto , Red en Modo Predeterminado/diagnóstico por imagen , Red en Modo Predeterminado/fisiopatología , Estudios de Cohortes , Trastornos del Neurodesarrollo/diagnóstico por imagen , Trastornos del Neurodesarrollo/fisiopatologíaRESUMEN
Cognitive abilities are markers of brain development and psychopathology. Abilities, across executive, and social domains need better characterization over development, including factors that influence developmental change. This study is based on the cVEDA [Consortium on Vulnerability to Externalizing Disorders and Addictions] study, an Indian population based developmental cohort. Verbal working memory, visuo-spatial working memory, response inhibition, set-shifting, and social cognition (faux pas recognition and emotion recognition) were cross-sectionally assessed in > 8000 individuals over the ages 6-23 years. There was adequate representation across sex, urban-rural background, psychosocial risk (psychopathology, childhood adversity and wealth index, i.e. socio-economic status). Quantile regression was used to model developmental change. Age-based trajectories were generated, along with examination of the impact of determinants (sex, childhood adversity, and wealth index). Development in both executive and social cognitive abilities continued into adulthood. Maturation and stabilization occurred in increasing order of complexity, from working memory to inhibitory control to cognitive flexibility. Age related change was more pronounced for low quantiles in response inhibition (ßâ¼4 versus =2 for higher quantiles), but for higher quantiles in set-shifting (ß > -1 versus -0.25 for lower quantiles). Wealth index had the largest influence on developmental change across cognitive abilities. Sex differences were prominent in response inhibition, set-shifting and emotion recognition. Childhood adversity had a negative influence on cognitive development. These findings add to the limited literature on patterns and determinants of cognitive development. They have implications for understanding developmental vulnerabilities in young persons, and the need for providing conducive socio-economic environments.
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Cognición , Memoria a Corto Plazo , Humanos , Masculino , Femenino , Niño , Adolescente , Adulto Joven , Adulto , Memoria a Corto Plazo/fisiología , Emociones/fisiología , Habilidades Sociales , Demografía , Función Ejecutiva/fisiologíaRESUMEN
AIMS: We conducted a cross-sectional survey to estimate the prevalence and clinical manifestation of disulfiram ethanol reaction (DER) and isopropanol toxicity (IT) in patients with alcohol use disorders, on disulfiram. Alcohol-based hand rub contains either ethanol or isopropanol or both. COVID-19 pandemic has led to wide scale usage of sanitizers. Patients with alcohol use disorders, on disulfiram, might experience disulfiram ethanol like reactions with alcohol-based sanitizers. METHODS: We telephonically contacted 339 patients, prescribed disulfiram between January 2014 and March 2020. The assessment pertained to the last 3 months (i.e. third week of March to third week of June 2020). RESULT: The sample consisted of middle-aged men with a mean 16 years of alcohol dependence. Among the 82 (24%) patients adherent to disulfiram, 42 (12.3%) were using alcohol-based hand rubs. Out of these, a total of eight patients (19%; 95% CI 9-33) had features suggestive of DER; four of whom also had features indicative of IT. Five patients (62.5%) had mild and self-limiting symptoms. Severe systemic reactions were experienced by three (37.5%). Severe reactions were observed with exposure to sanitizers in greater amounts, on moist skin or through inhalation. CONCLUSION: Patients on disulfiram should be advised to use alternate methods of hand hygiene.
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Disuasivos de Alcohol/efectos adversos , Alcoholismo/diagnóstico , Disulfiram/efectos adversos , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos/diagnóstico , Etanol/efectos adversos , Desinfectantes para las Manos/efectos adversos , 2-Propanol/administración & dosificación , 2-Propanol/efectos adversos , Adulto , Disuasivos de Alcohol/administración & dosificación , Alcoholismo/tratamiento farmacológico , COVID-19/prevención & control , Estudios Transversales , Disulfiram/administración & dosificación , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos/etiología , Etanol/administración & dosificación , Desinfectantes para las Manos/administración & dosificación , Humanos , Masculino , Persona de Mediana Edad , Centros de Tratamiento de Abuso de SustanciasRESUMEN
Anatomical brain templates are commonly used as references in neurological MRI studies, for bringing data into a common space for group-level statistics and coordinate reporting. Given the inherent variability in brain morphology across age and geography, it is important to have templates that are as representative as possible for both age and population. A representative-template increases the accuracy of alignment, decreases distortions as well as potential biases in final coordinate reports. In this study, we developed and validated a new set of T1w Indian brain templates (IBT) from a large number of brain scans (total n = 466) acquired across different locations and multiple 3T MRI scanners in India. A new tool in AFNI, make_template_dask.py, was created to efficiently make five age-specific IBTs (ages 6-60 years) as well as maximum probability map (MPM) atlases for each template; for each age-group's template-atlas pair, there is both a "population-average" and a "typical" version. Validation experiments on an independent Indian structural and functional-MRI dataset show the appropriateness of IBTs for spatial normalization of Indian brains. The results indicate significant structural differences when comparing the IBTs and MNI template, with these differences being maximal along the Anterior-Posterior and Inferior-Superior axes, but minimal Left-Right. For each age-group, the MPM brain atlases provide reasonably good representation of the native-space volumes in the IBT space, except in a few regions with high intersubject variability. These findings provide evidence to support the use of age and population-specific templates in human brain mapping studies.
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Algoritmos , Atlas como Asunto , Encéfalo/anatomía & histología , Procesamiento de Imagen Asistido por Computador/métodos , Imagen por Resonancia Magnética/métodos , Neuroimagen/métodos , Adolescente , Adulto , Niño , Femenino , Humanos , India , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Adulto JovenRESUMEN
BACKGROUND: Low and middle-income countries like India with a large youth population experience a different environment from that of high-income countries. The Consortium on Vulnerability to Externalizing Disorders and Addictions (cVEDA), based in India, aims to examine environmental influences on genomic variations, neurodevelopmental trajectories and vulnerability to psychopathology, with a focus on externalizing disorders. METHODS: cVEDA is a longitudinal cohort study, with planned missingness design for yearly follow-up. Participants have been recruited from multi-site tertiary care mental health settings, local communities, schools and colleges. 10,000 individuals between 6 and 23 years of age, of all genders, representing five geographically, ethnically, and socio-culturally distinct regions in India, and exposures to variations in early life adversity (psychosocial, nutritional, toxic exposures, slum-habitats, socio-political conflicts, urban/rural living, mental illness in the family) have been assessed using age-appropriate instruments to capture socio-demographic information, temperament, environmental exposures, parenting, psychiatric morbidity, and neuropsychological functioning. Blood/saliva and urine samples have been collected for genetic, epigenetic and toxicological (heavy metals, volatile organic compounds) studies. Structural (T1, T2, DTI) and functional (resting state fMRI) MRI brain scans have been performed on approximately 15% of the individuals. All data and biological samples are maintained in a databank and biobank, respectively. DISCUSSION: The cVEDA has established the largest neurodevelopmental database in India, comparable to global datasets, with detailed environmental characterization. This should permit identification of environmental and genetic vulnerabilities to psychopathology within a developmental framework. Neuroimaging and neuropsychological data from this study are already yielding insights on brain growth and maturation patterns.
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Conducta Adictiva/epidemiología , Conducta Adictiva/psicología , Desarrollo Infantil , Trastornos Mentales/epidemiología , Trastornos Mentales/psicología , Adolescente , Conducta Adictiva/diagnóstico por imagen , Niño , Desarrollo Infantil/fisiología , Preescolar , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Humanos , India/epidemiología , Lactante , Recién Nacido , Estudios Longitudinales , Masculino , Trastornos Mentales/diagnóstico por imagen , Responsabilidad Parental/psicología , Embarazo , Efectos Tardíos de la Exposición Prenatal/epidemiología , Efectos Tardíos de la Exposición Prenatal/psicología , Medio Social , Factores Socioeconómicos , Temperamento/fisiologíaRESUMEN
OBJECTIVE: To evaluate the clinical profile and effectiveness of ECT in females with postpartum onset psychiatric syndromes or worsening of psychiatric disorder during the postpartum period. MATERIALS AND METHODS: A retrospective chart review was carried out to identify females who had received ECT during their postpartum period from January2004 to April 2017. RESULTS: During the study period, 13 females in their postpartum period received ECT, which accounted for 2.24% of the total females (n = 578) who had received ECT and 1% of total patients who were administered ECT during this period. The most common clinical diagnosis was postpartum depression (n = 7; 53.86%). Three (23.1%) patients were diagnosed with bipolar disorder and had experienced a relapse during the postpartum period. Two (15.4%) patients were diagnosed with schizophrenia and 1 (7.7%) patient was diagnosed with postpartum psychosis/acute and transient psychotic disorder. ECT was considered as a treatment of choice in 9 (69.2%) patients. All the patients with depression or mania achieved clinical remission, and patients with psychotic disorders also had significant reduction in their symptoms. Cognitive complaints were reported by 4 (30.8%) patients, and aches and pains after ECT were reported by 7 (53.8%). CONCLUSION: ECT is a safe and effective treatment option in postpartum onset psychiatric syndromes or patients experiencing relapse or exacerbation of severe mental disorders during the postpartum period and is associated with a very good response rate with minimal or no complications.
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AIM: This study aimed to explore the phenomenology, motor subtypes, and factor structure of symptom profile of delirium in patients admitted to the intensive care unit (ICU). METHODS: Consecutive patients aged ≥16 years admitted in an ICU were screened daily for delirium using confusion assessment method-ICU. Patients diagnosed to have delirium as per Diagnostic and Statistical Manual fourth revision, text revision (DSM-IVTR) criteria were assessed with Delirium Rating Scale-Revised 98 (DRS-R 98) and Memorial Delirium Assessment Scale (MDAS). Motor subtypes of delirium were assessed with amended Delirium Motor Symptom Scale. RESULTS: Sixty-six patients were evaluated for delirium, of which 45 (68%) patients developed delirium at point of their ICU stay. All patients had sleep-wake cycle disturbances, followed by motor symptoms (retardation - 80%; agitation - 73.3%). As per MDAS assessment, all the subjects had disturbances in the consciousness and sleep-wake cycle disturbances, and a substantial majority also had attention difficulties (93.3%) and motor symptoms (93.3%). Hypoactive subtype (47%) was the most common motoric subtype of delirium. Factor analysis revealed three-factor model for DRS-R 98, MDAS, and combining items of the two. CONCLUSION: Phenomenology of delirium in ICU setting is similar to that of the non-ICU settings. The factor analysis consistently demonstrated a three factor solution, with a robust attention-arousal factor, and overlapping cognitive (core vs. non-core) motor factors.
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The mind-altering agents such as tobacco, cannabis, and opium have been widely used since the evolution of human being. These substances have been widely used for recreational purposes. However, derivatives from reptiles such as snakes, reptiles, and scorpions can also be used for recreational purposes and as a substitute for other substances. Their use is rare and related literature is very scanty. In this report, we present a case of snake venom abuse and review the existing literature.
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BACKGROUND: Alcoholism is considered as a major health as well as a social problem. Often the family members of alcoholics suffer intense psychological, physical and social trauma due to the core drinking problem of the family member. Most deeply affected are the wives of alcoholics. AIM: The present descriptive study aimed to investigate the problems faced and coping strategies used by the wives of alcoholics. METHODOLOGY: A total of 30 wives of alcoholic clients seeking treatment in De-addiction Centre were interviewed for the same. The problems were identified using a non standardized 17 item structured questionnaire while coping in wives of alcoholics was assessed using standardized tool. RESULTS: The findings revealed the problems faced by alcoholics wives were in multiple domains viz. physical, psychological and social. While most highly reported were the emotional problems and least reported were the problems of physical violence. Coping strategies used by wives of alcoholics were reported in three major styles: engaged, tolerant and withdrawal. CONCLUSION AND RECOMMENDATIONS: The problems faced by alcoholics have often wedged the attention in society yet finding and applying effective interventions to reduce the pain and suffering of being a partner of alcoholic is still a challenge.
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BACKGROUND: Indian research on intimate partner violence (IPV) with substance use covers only alcohol, and very few studies have reported on IPV with other substances. The study aims to assess IPV against wives by substance dependent men. METHODS: The study sample was recruited by convenient sampling from men (and their wives) seeking treatment at a de-addiction centre in North India between October, 2011 and February, 2012. The consenting wives self-administered the violence questionnaire. RESULTS: 267 wives were recruited into the study. The prevalence rates for IPV were: 55% for the whole sample, 63.19% for alcohol dependence and 42.33% for opioid dependence. IPV was associated with higher age of husband, lower education or unemployment of either spouse, lower income of family and nuclear family structure. CONCLUSIONS: Present research confirms that IPV against wives is highly prevalent among substance dependent men, more with alcohol dependence as compared to opioid dependence. Addressing IPV should be an integral part of substance abuse management.