system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Major thyroxine binding protein -
assistant
The correct answer is  Ans. is 'c' i.e., Globulin o Most of the circulating thyToid, hormones are protein bound, leaving only 0.02% T, and about 0.2% T. unbound or free.o There are three hormone binding plasma proteins, i.e., thyroxine binding globulin (major thyroid hormone binding protein), thyroxine binding albumin and thyroxine binding prealbumin.o Thyroid binding globulin level is raised in pregnancy and by drugs estrogens, methadone, heroin, tranquilizers, clofibrate.o TBG decreases by glucocorticoid, androgen, danazol, asparginase (cancer chemotherapy) and nephrotic syndrome.