Endocrinology (journal)

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.

Overview

Specializations include behavioral endocrinology and comparative endocrinology. 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.

History

The study of endocrinology began in China. The Chinese were isolating sex and pituitary hormones from human urine and using them for medicinal purposes by 200 BCE. They used many complex methods, such as sublimation of steroid hormones. Another method specified by Chinese texts—the earliest dating to 1110—specified the use of saponin (from the beans of Gleditschia sinensis) to extract hormones.

Endocrine Glands

Endocrine glands are the cardinal part of endocrinology. The primary function of these ductless glands is to secrete their hormones directly into the surrounding fluid. The interstitial fluid and the blood vessels then transport the hormones throughout the body. The endocrine system includes the adrenal glands, parathyroid gland, pituitary gland, and thyroid gland, as well as the ovaries, pancreas, and testes.

Disorders

Disorders of the endocrine system can result in numerous diseases, including diabetes mellitus, thyroid disease, and growth disorders. Endocrinology also involves study of the diseases of the endocrine system. These diseases may relate to the endocrine glands, or the hormones themselves.

See Also

• Endocrine system
• Hormone
• Endocrine diseases
• Endocrine glands

References

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