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
Cost due to Damage to Equipment Cost due to Damage to Equipment, Property etc. Tooling may have to be redesigned, adding cost. Cost due to reduced output and delay

Define Recommended Dietary Allowance for Folate (RDA)? Folate requirements are the intake levels necessary to prevent deficiency with clinical symptoms. The requirements are ex

Q. What are some major differences of the vertebrate nervous systems comparing to invertebrates? In vertebrates the nervous system is well-characterized, having dorsal neural c

Precipitation/Solubility of Proteins Most of the functional properties areĀ  dependent on the degree to which the proteins are soluble. The solubility behaviour provides a good

Q. First type of rheological model? This method establishes relation between the pressure gradient and the volume rate of flow. Here, the piston measurement is used to measure

can I know the difference between diocot and monocot seeds in a plant

Explain the Klebsiella - Characteristics of Bacteria? It is gram negative, non-sporulating, non-motile and non-pigmented rod, which is commonly found in soil or water. It is th

Pre-Diabetes is a condition where blood sugar level is above normal but below the value to be diagnosed as diabetes mellitus. It has been found that those people with blood sugar v

What purpose does sleep serve for the brain? A. We don't yet know full answer to this fundamental question however neuroscience is providing intriguing clues. It's increasingly

Determine the major demographic processes? There are five major demographic processes, which are continually at work within the population namely, fertility, mortality, marriag