tumor necrosis factor-alpha

The Immune System in Critically Ill Children with Influenza

by

An interesting article discussed the results of a study looking at the immune system in critically ill children. The article describes a study published in early 2013 in the January issue of Critical Care Medicine. Recent evidence indicates that the suppression of innate immune system function can occur in critically ill patients. In this study patients with innate immune suppression produced reduced amounts of tumor necrosis factor (TNF)-α  when their blood is stimulated with lipopolysaccharide (LPS). The article states “Results indicated that despite high levels of circulating pro-inflammatory cytokines, critically ill children with influenza demonstrated lower TNFα production capacity compared with healthy control subjects. Further, children who died from influenza had markedly lower TNFα production capacity compared with survivors.” Hence this study suggests that the reduction of immune function in these children who are critically ill may make them more prone … Read more

Loneliness can tax the Immune System

by

Interesting research has been conducted by investigators from the Ohio State University. The research links loneliness to a number of dysfunctional immune responses which suggests loneliness may adversely affect overall health. The results were based on a series of studies on two different groups: 1) a healthy group of overweight middle-aged adults and 2) a group of breast cancer survivors with an average age of 51. Loneliness was measured using the UCLA Loneliness Scale. The researchers measured presence of antibodies against Epstein-Barr virus and cytomegalovirus in the breast cancer survivor group with 200 participants. Lonelier participants were found to have higher levels of antibodies against cytomegalovirus compared to less lonely participants. Further, those higher antibody levels were related to more depression, pain, and fatigue symptoms. No difference was found for Epstein-Barr virus antibody levels. Previous research has shown that stress … Read more