Estrogens, Biology

Estrogens

The predominant natural estrogens of the human are estradiol- 17β, estrone and estriol. Estrogens contain eighteen carbon atoms. Steroid hormones are derived from cholesterol. The basic structure of all the steroid hormones is the steroid ring cyclopentanoperhydrophenanthrene, having 17 carbon atoms. The estrogens act directly or in cooperation with other hormones to produce a great variety of effects on specific target organs and on the chemistry of the body as a whole.

1065_Estrogens.png

Figure:  (a) cyclopentanoperhydrophenanthrene (b) Estrone (c)  Estradiol-l7β  (d) Estriol

Posted Date: 1/16/2013 7:02:37 AM | Location : United States







Related Discussions:- Estrogens, Assignment Help, Ask Question on Estrogens, Get Answer, Expert's Help, Estrogens Discussions

Write discussion on Estrogens
Your posts are moderated
Related Questions
Q. Explain Atherosclerosis? Atherosclerosis is one of the most important causes of morbidity and mortality in developed as well as in developing countries. Atherogenesis occurs

Q. Explain Injection Rate and Volume? This is best achieved by injecting directly into the ventricular chamber. Midcavitary position of the catheter ensures that there is no ve

Explain about the Complete proteins? We now know that proteins are composed of amino acids and that proteins differ in their amino acid make-up. Proteins lacking in one or more

Organisation of the Marine Ecosystem The oceans like lakes, exhibit zonations. First describe the various zones or regions of the oceans and then later deal with the biota occ

Define the Concept of Health Care? We are aware of the fact that health is a fundamental human right. Thus, it becomes imperative for the State to assume responsibility for the

Define Risk assessment Risk  assessment  has  been  described  as  the process  of  organizing  information concerning a particular  risk in  a systematic way  so  that the dec

The vascular tone increases as the arterial size decreases. The tone at any time reflects the effects of excitory and inhibitory pathways. Neurotransmitters, physical forces like s

Q. List the four objectives of counselling a diabetic patient? Objectives of Diabetes Counselling 1. Facilitating decision to start treatment and change life style 2.

SOIL TEXTURE AND STRUCTURE We have seen that soils are predominantly composed of particles of various sizes derived from the disintegration or decomposition of parent rock materi

Explain about the Dehydration or Drying? The technique of drying is the oldest method of food preservation practiced by mankind. The removal of moisture, which is actually dehy