Prevalence and factors associated with poor sleep quality in inflammatory bowel disease outpatients.

INTRODUCTION: sleep disorders are common in the general population and have obvious repercussions on quality of life. Poor sleep quality is associated to inflammatory activity and fatigue in inflammatory bowel disease (IBD) patients. This study aimed to analyze the prevalence of poor sleep quality and the factors associated with it, in IBD outpatients. METHODS: an observational and prospective study was performed in which epidemiological, clinical and laboratory data were collected from clinical records and patients who consecutively attended an outpatient clinic. Pittsburgh Sleep Quality index (PSQI), Hospital Anxiety and Depression Scale (HADS) and International Physical Activity Questionnaire (IPAQ) were used to measure sleep quality, anxiety, depression and physical activity, respectively. Treatment optimizations, hospital admissions or surgery were prospectively verified three months after the baseline visit. RESULTS: one hundred and two patients were included and 54.9 % had poor sleep quality (PSQI score > 5). No association was found between poor sleep quality and IBD-related variables such as type of disease, ulcerative colitis (UC) extent, Crohn's disease (CD) location or behavior, time from diagnosis, treatment, prior admissions or surgery and laboratory values. Rotating night shift job (OR 6.116, 95 % CI: 1.312-28.514), HAD score for depression (OR 1.125, 95 % CI: 1.062-1.490) and frequency (days per week) of vigorous physical activity (OR 0.783, 95 % CI: 0.619-0.991) were independent predictors of poor sleep quality. A Pittsburgh questionnaire score higher than 5 was not significantly associated to treatment optimization in the total patient cohort (15.2 % vs 18.2 %, p = 0.451), in UC patients (18.2 % vs 10.7 %, p = 0.362) or CD patients (12.5 % vs 25.9 %, p = 0.198). CONCLUSIONS: poor sleep quality is present in more than half of IBD patients. Aspects not directly related to IBD are associated to poor sleep quality.

Elevación de las transaminasas en la enfermedad celíaca del adulto / Elevated transaminase levels in adult celiac disease

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Approach to the pathogenesis and treatment of nonalcoholic steatohepatitis.

Nonalcoholic steatohepatitis (NASH) represents an advanced stage of fatty liver disease developed in the absence of alcohol abuse. Its increasing prevalence in western countries, the diagnostic difficulties by noninvasive tests, and the possibility of progression to advanced fibrosis and even cirrhosis make NASH a challenge for hepatologists. NASH is frequently associated with type 2 diabetes and the metabolic syndrome, and several genetic and acquired factors are involved in its pathogenesis. Insulin resistance plays a central role in the development of a steatotic liver, which becomes vulnerable to additional injuries. Several cyclic mechanisms leading to self-enhancement of insulin resistance and hepatic accumulation of fat have been recently identified. Excess intracellular fatty acids, oxidant stress, tumor necrosis factor-alpha, and mitochondrial dysfunction are causes of hepatocellular injury, thereby leading to disease progression and to the establishment of NASH. Intestinal bacterial overgrowth also plays a role, by increasing production of endogenous ethanol and proinflammatory cytokines. Therapeutic strategies aimed at modulating insulin resistance, normalizing lipoprotein metabolism, and downregulating inflammatory mediators with probiotics have promising potential.