Low Free T Is Associated With Worse Outcomes in Patients in the ICU Requiring Invasive Mechanical Ventilation.

Objective: Critical illness causes a decrease in serum free triiodothyronine (T) levels. This condition, known as nonthyroidal illness syndrome (NTIS), is associated with poor outcomes. The association of NTIS and outcomes in patients in the intensive care unit (ICU) requiring mechanical ventilation has not been well studied.

Usefulness of Serum Triiodothyronine (T3) to Predict Outcomes in Patients Hospitalized With Acute Heart Failure.

Thyroid hormone plays an important role in cardiac function. Low levels of serum triiodothyronine (T) due to nonthyroidal illness syndrome may have adverse effects in heart failure (HF). This study was designed to assess the ability of T to predict in-hospital outcomes in patients with acute HF.

Differences in affiliative behavior, pair bonding, and vaginal cytology in two species of vole (Microtus ochrogaster and M. montanus).

Prairie voles (Microtus ochrogaster) and montane voles (M. montanus) display marked differences in social organization in the field. Trios of 1 male and 2 females were studied in a large enclosure for a 10-day period.