Endocrinology is a branch of biology and medicine dealing with the endocrine system, its diseases, and its specific secretions known as hormones. It is also concerned with the integration of developmental events proliferation, growth, and differentiation, and the psychological or behavioral activities of metabolism, growth and development, tissue function, sleep, digestion, respiration, excretion, mood, stress, lactation, movement, reproduction, and sensory perception caused by hormones.

The endocrine system consists of several glands, all in different parts of the body, that secrete hormones directly into the blood rather than into a duct system. Therefore, endocrine glands are regarded as ductless glands. Hormones have many different functions and modes of action; one hormone may have several effects on different target organs, and, conversely, one target organ may be affected by more than one hormone.

Opioid Receptor： https://www.tsbiochem.com/target/Opioid-Receptor

Androgen Receptor： https://www.tsbiochem.com/target/Androgen-Receptor

Aromatase： https://www.tsbiochem.com/target/Aromatase

Estrogen/progestogen Receptor： https://www.tsbiochem.com/target/Estrogen-progestogen-Receptor

GPR： https://www.tsbiochem.com/target/GPR

LHRH： https://www.tsbiochem.com/target/LHRH

RAAS： https://www.tsbiochem.com/target/RAAS

Thyroid hormone receptor(THR)： https://www.tsbiochem.com/target/Thyroid-hormone-receptor%28THR%29

Oxytocin Receptor： https://www.tsbiochem.com/target/Oxytocin%20Receptor

Estrogen Receptor/ERR： https://www.tsbiochem.com/target/Estrogen%20Receptor-ERR

Reductase： https://www.tsbiochem.com/target/Reductase