The effects of selenium supplementation on inflammatory markers in critically ill patients

Abstract

Low serum selenium (Se) levels have been shown in critical illness, which is associated with poor clinical outcomes and a higher mortality rate. Se plays an important role in inflammation and oxidative stress. Since the overproduction of inflammatory cytokines and increased oxidative stress is a major component of critical illnesses, its supplementation has been demonstrated to have promising effects on critically ill patients. This study aims to review the evidence regarding the effects of Se supplementation on inflammatory and oxidative markers in critically ill patients. The literature review highlights alterations of inflammatory markers, including procalcitonin, leukocyte count, albumin, prealbumin, C-reactive protein (CRP), inflammatory cytokines, and cholesterol following Se supplementation in critically ill patients. Besides, the antioxidant properties of Se due to its presence in the structure of several selenoenzymes have been reported. Article highlights Low serum Se level have been shown in critical illness, which is associated with poor clinical outcome and higher mortality rate. Se plays an important role in inflammation and oxidative stress. Se supplementation can have promising effects by alterations of inflammatory markers and its antioxidant properties for critically ill patients.

Evaluation of the Serum Levels of Minerals (Zinc, Selenium, Iron) and Thyroid Hormones (TSH, T3, T4) and Nutritional Intakes and Length of Stay in the Intensive Care Unit Among Burn Patients

“…According to studies, the level of these minerals in the body during the burn process and the critical condition is reduced greatly as urinary excretion increases, or the proteins carrying these minerals decrease, as well as due to metabolism. The level of these minerals will likely decline, and the improvement in the patient's condition due to the critical role of these minerals can greatly help repair damaged tissues and wounds and alleviate infection (10,11). In addition, administering minerals to burn patients has been associated with increased blood flow and improved antioxidant status, reduced lung infections, and accelerated wound healing (12).…”