We examined the association between the colonic adherent microbiota and nocturnal sleep duration in humans. In a cross-sectional study, 63 polyp-free adults underwent a colonoscopy and donated 206 mucosal biopsies. The gut microbiota was profiled using the 16S rRNA gene sequencing targeting the V4 region. The sequence reads were processed using UPARSE and DADA2, respectively. Lifestyle factors, including sleep habits, were obtained using an interviewer-administered questionnaire. We categorized the participants into short sleepers (<6 h per night; n = 16) and normal sleepers (6–8 h per night; n = 47) based on self-reported data. Differences in bacterial biodiversity and the taxonomic relative abundance were compared between short vs. normal sleepers, followed by multivariable analysis. A false discovery rate-adjusted p value (q value) < 0.05 indicated statistical significance. The bacterial community composition differed in short and normal sleepers. The relative abundance of Sutterella was significantly lower (0.38% vs. 1.25%) and that of Pseudomonas was significantly higher (0.14% vs. 0.08%) in short sleepers than in normal sleepers (q values < 0.01). The difference was confirmed in the multivariable analysis. Nocturnal sleep duration was associated with the bacterial community composition and structure in the colonic gut microbiota in adults.

IntroductionIt is difficult for a single investigator to study the psychosocial changes that occur over the life span of an individual affected with a chronic illness like β-thalassaemia major. Therefore, a developmental epidemiological perspective is required to understand the chain of events and problems of psychological nature.Aim and objectivesWe aimed to construct the picture of developmental epidemiology for psychosocial aspects in families of β-thalassaemia major patients attending a tertiary care hospital in north India.MethodsThe accelerated longitudinal design was used. The sample consisted of 100 children with β-thalassaemia and their 150 parents, both groups were subdivided further so that each group represented the continuum of longitudinal course.ResultsOverall 54 per cent of children had significant psychopathology. Within the parents groups, 10 per cent had adjustment disorder, 33.3 per cent depressive disorder, and 10 per cent had anxiety disorder and 11 per cent somatoform disorder. There was significant difference only in the domain of psychological health in all the three groups of parents with respect to the quality of life. Among children, quality of life improved with their progression of illness.ConclusionsGrowing up with β-thalassaemic family was analyzed. Such a design can test the hypothesized aetiological or developmental function of a targeted risk factor within a developmental path and may be used in studying the psychological impact of even other chronic illnesses over the life span of an individual for conceptual and holistic understanding.

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Acute megakaryoblastic leukemia (AMKL) is a rare subtype of acute myeloid leukemia. Although known as a distinct entity for a very long time, because of lack of distinct clinical features and morphological criteria, it is difficult to diagnose this variant correctly. We herein present the clinical, morphological, cytochemical, and immunocytochemical features of five cases of AMKL. Certain morphological features such as presence of abnormal platelet count, giant platelets, and cytoplasmic blebbing in blasts were found to be important pointers towards the diagnosis. However, none of the features were found to be consistent and thus morphological diagnosis has to be confirmed by cytochemistry and immunocytochemistry.

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