Patients in the intensive care unit (ICU) typically present with decreased concentrations of
plasma tri-iodothyronine, low thyroxine, and normal range or slightly decreased …

Background: Critically ill patients typically present with low or low-normal plasma thyroxine,
low plasma triiodothyronine (T3), increased plasma reverse T3 (rT3) concentrations, in the …

Objective COVID-19 is a new coronavirus infectious disease. We aimed to study the
characteristics of thyroid hormone levels in patients with COVID-19 and to explore whether …

The hypothalamus–pituitary–thyroid feedback control is a dynamic, adaptive system. In
situations of illness and deprivation of energy representing type 1 allostasis, the stress …

Decreased serum thyroid hormone concentrations in severely ill patients were first reported
in the 1970s, but the functional meaning of the observed changes in thyroid hormone levels …

Staphylococcus aureus bacteremia (SaB) causes significant disease in humans, carrying
mortality rates of∼ 25%. The ability to rapidly predict SaB patient responses and guide …

Purpose “Non thyroidal illness syndrome”(NTIS) or “euthyroid sick syndrome”(ESS) is a
possible biochemical finding in euthyroid patients with severe diseases. It is characterized …

Background and Objective Nonthyroidal Illness Syndrome (NTIS) occurs in approximately
70% of patients admitted to Intensive Care Units (ICU) s and has been associated with …

In conditions of acute illness, patients present with reduced plasma T3 concentrations
without a concomitant rise in TSH. In contrast, plasma concentrations of the inactive …

The thyroid gland produces hormones that primarily regulate cellular metabolism, have wide-
ranging pleiotropic effects, and are essential for life. During critical illness, the most active …