It involves many endocrine tissues in the body, especially the adrenal glands.

Beginning at the onset of puberty, in most cases, it involves the gradual replacement of exocrine and endocrine glandular tissues with lipidous cells.

Hormones are substances (chemical mediators) released from endocrine tissue into the bloodstream where they travel to target tissue and generate a response.

Hormones are complex chemicals released from endocrine tissue into the bloodstream where they travel to target tissues and trigger a response.

In a few teleost species, the endocrine tissue has fused to form a distinct gland within the abdominal cavity, but otherwise it is distributed among the exocrine components.

Patients with APECED develop an autoimmune disease that affects multiple endocrine tissues.

It is an intracellular hemoprotein expressed in the central and peripheral nervous system, cerebrospinal fluid, retina and endocrine tissues.

Tumors of endocrine tissues may overproduce certain hormones, especially when the cells are well differentiated.

In animals endocrine tissues release hormones into the bloodstream.

A good example is the endocrine tissue found in the islets of Langerhans in the pancreas.