Role of hormones in aging, Biology

Role of Hormones in Aging

Aging as well reflects the inefficiency of the endocrine system. A change in the hormonal secretions may contribute to the development of physical ailments of old age. For instance, decrease in secretion of estrogen from the ovaries results osteoporosis in women. Hypothalamus appears to be a significant agent in aging. The production of gonadotropin releasing hormones from the hypothalamus is affected by drop of catecholamine (chemical neurotransmitter) in the nerve endings of the hypothalamus. Experiments were done by using the drug L-dopa to reinitiate the release of catecholamines from the nerve endings of the hypothalamus of rats where ovaries had stopped discharging eggs. L-dopa also promotes estrous in old rats. So, an age-related deficiency in hypothalamic nerve endings or receptors of catecholamine may be accountable for the loss of ovarian function in elderly women. Patterns of growth in organisms and the aging processes which we have learnt about in this describes that the two phenomena, growth and aging, can be studied at any level from molecular to organismal. We see that all aspects of the organism are clearly included in the general process of aging and no single one can be assigned the job for the overall phenomena.

Posted Date: 1/31/2013 7:07:43 AM | Location : United States







Related Discussions:- Role of hormones in aging, Assignment Help, Ask Question on Role of hormones in aging, Get Answer, Expert's Help, Role of hormones in aging Discussions

Write discussion on Role of hormones in aging
Your posts are moderated
Related Questions
Explain the Components of heart sounds? The first major component is associated with mitral valve closure (M 1) and is due to abrupt arrest of the leaflet motion when the cusps

Cell theory exception

Identify three ways that bacteria can be transmitted from person to person. Diseases affecting nerves contain botulism and tetanus; diseases affecting the intestine include sa

What is an Erlenmeyer flask and how is it used? It is same to a beaker, except that it gets narrower at the top. It is use to hold liquids and do reactions in it.

Relative to carrying capacity, what may result from unbridled continued growth of our population.

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

What might be the value of the Everglade restoration plan? Everglades will protect endangered species, such as the Florida panther, and restore the water flow needed by many or

What is Bilateral Symmetry system? To review: all animals besides the sponges (Phylum Porifera) belong to the Eumetazoa. There are two groups within the Eumetazoa that possess

Other Complications :  Bioprosthetic valves have a tendency for degeneration, calcification or cusp perforation. Current models have overcome many of these problems. Calcification

Study of tonana larva Tornaria larva is typical in the life-history of hemichordates. Examine the permanent slide and note the following features: I. The tornaria larva usu