Question

STH (somatotropic hormone) is also known as
A. TSH
B. LTH
C. ADH
D. GH

Answer 1

Somatotropin hormone is a protein hormone of around 190 amino acids that is synthesized and emitted by cells called somatotrophs in the anterior pituitary. It is an important participant in the influence of several complex physiologic techniques, including growth and metabolism.

Complete Answer:
- STH is also called growth hormone (GH), also called somatotropin human growth hormone, peptide hormone secreted by the anterior lobe of the pituitary gland. It boosts the growth of essentially all tissues of the body, including bone. GH is synthesized and emitted by anterior pituitary cells called somatotrophs, which release between one and two milligrams of the hormone each day.
- GH is essential for the normal physical improvement in children; its conditions rise progressively during adolescence and maximum during the accumulation eruption that results in puberty. In biochemical terms, GH stimulates protein synthesis and increases fat breakdown to deliver the energy essential for tissue growth. It also antagonizes (opposes) the action of insulin.
- GH may act rapidly on tissues, but much of its effect is referred to by stimulation of the liver and other tissues to produce and release insulin-like growth factors, primarily insulin-like growth factor 1 (IGF-1; formerly called somatomedin). The term insulin-like development factor is derived from the capacity of high concentrations of these factors to mimic the action of insulin, although their primary action is to stimulate growth.
- Serum IGF-1 attention increases progressively with age in children, with an accelerated increase at the time of the pubertal growth spurt. After puberty, the professions of IGF-1 gradually decline with age, as do GH concentrations.
- In years past, growth hormone refined from human cadaver pituitaries was utilized to treat children with severe growth retardation. More recently, the virtually unlimited supply of growth hormone generated using recombinant DNA technology has to lead to several other applications to human and animal communities.
- Human growth hormone is commonly used to treat children of pathologically short stature. There is suspicion that this method will be expanded to the treatment of essentially normal children - so-called "enhancement therapy" or growth hormone in need.
- Similarly, growth hormone has been used by some to enhance athletic performance. Although growth hormone therapy is generally safe, it is not as safe as no therapy and does entail unpredictable health risks. Parents that request growth hormone therapy for children of essentially-normal stature are misguided.
- The function of the growth hormone in normal ageing inhabits poorly understood, but some of the cosmetic symptoms of ageing appear to be amenable to growth hormone therapy. This is an active area of research, and additional information and recommendations about risks and benefits will undoubtedly surface shortly.

Thus, the answer is optional D: GH.

Note: Growth hormone is currently accepted and exchanged for improving milk production in dairy cattle. There is no doubt that the administration of bovine somatotropin to lactating cows results in increased milk yield, and, depending on the way the cows are managed, can be an economically-viable therapy. However, this treatment engenders abundant controversy, even among dairy farmers. One thing that appears clear is that drinking milk from cattle treated with bovine growth hormone does not pose a risk to human health.