Relationship between skeletal muscle mass index and metabolic phenotypes of obesity in adolescents / 中国当代儿科杂志

OBJECTIVES@#To study the relationship between skeletal muscle mass index (SMI) and metabolic phenotypes of obesity in adolescents, and to provide a basis for the prevention and control of adolescent obesity and related metabolic diseases.@*METHODS@#A total of 1 352 adolescents aged 12 to 18 years were randomly selected by stratified cluster sampling in Yinchuan City from October 2017 to September 2020, and they were surveyed using questionnaires, physical measurements, body composition measurements, and laboratory tests. According to the diagnostic criteria for metabolic abnormalities and the definition of obesity based on the body mass index, the subjects were divided into four metabolic phenotypes: metabolically healthy normal weight, metabolically healthy obesity, metabolically unhealthy normal weight, and metabolically unhealthy obesity. The association between SMI and the metabolic phenotypes was analyzed using multivariate logistic regression.@*RESULTS@#The SMI level in the metabolically unhealthy normal weight, metabolically healthy obesity, and metabolically unhealthy obesity groups was lower than that in the metabolically healthy normal weight group (P<0.001). Multivariate logistic regression analysis showed that after adjusting for gender and age, a higher SMI level was a protective factors for adolescents to develop metabolic unhealthy normal weight, metabolically healthy obesity, and metabolically unhealthy obesity phenotypes (OR=0.74, 0.60, and 0.54, respectively; P<0.001).@*CONCLUSIONS@#Increasing SMI can reduce the risk of the development of metabolic unhealthy/obesity.

Association of depression with inflammation in hospitalized patients of myocardial Infarction

The aim of this study was to examine the associations between depression and inflammatory markers in patients admitted to the hospital for myocardial infarction. Inflammatory cytokines, including high-sensitivity C-reactive protein [hs-CRP], interleukin [IL]-1beta, IL-6, and tumor necrosis factor-alpha [TNF-alpha] were assessed in a group of 75 depressed participants [score of >/= 12] and compared to a control group of 75 nondepressed participants [score < 12], all who had been admitted to the hospital for myocardial infarction. The presence of depressive symptoms was assessed using the Beck Depressive Symptoms Inventory II Scale [BDI-II]. Depressed myocardial infarction participants had significantly greater levels of TNF-alpha [t = 2.070, P < 0.05] compared with control myocardial infarction participants. The BDI-II score was positively correlated with TNF-alpha levels [r = 0.222, P < 0.05]. These results indicate that the presence of depressive symptoms is positively associated with TNF-alpha levels among patients who have suffered from myocardial infarction