Endocrine Disruptors - Essay Example

Only on StudentShare

Extract of sample
Endocrine Disruptors

These chemicals have been found to act as estrogens, anti-estrogens, androgens, anti-androgens, or to interfere with thyroid hormone, cortisol, insulin, or growth regulators. Moreover, since animals and human foetal development is primarily dependent on hormonal levels at various phases of development, the effects of these endocrine disrupting chemicals on the endocrine, reproductive, neurological, and immune systems have been found to be very serious, if not catastrophic (Windham, 2000).
TCDD dioxin is the most toxic of a class of organochlorine chemicals including chlorinated dibenzo-p-dioxins (CDDs), dibinzofurans (CDFs), polychlorinated biphenals (PCBs), brominated dibenzo-p-dioxins (BDDs), brominated dibenzofurans (BDFs), and polychlorinated pesticides etc. These groups of chemicals have been shown to exert hormonal effects that disrupt the endocrine system of wildlife resulting in adverse effects on reproductive system development and hormones, foetal development, and the immune system at extremely low levels of exposure (Windham, 2000; Are Environmental Hormones Emasculating Wildlife, 1994). ...Show more

Summary

The harmful effects of exposure to environmental pollutants on reproduction and development in wildlife populations have been acknowledged and reported in the scientific literature for many years. Some reported reproductive disorders in wildlife have included morphologic abnormalities, eggshell thinning, population declines, impaired viability of offspring, altered hormone concentrations and changes in socio-sexual behaviour…
Author : herzogsister
Save Your Time for More Important Things
Let us write or edit the essay on your topic
"Endocrine Disruptors"
with a personal 20% discount.
Grab the best paper

Related Essays

Endocrinology
In terms of secretion of hormones, the adrenal medulla and cortex behave in a different manner, both in terms of the hormones secreted and also in terms of stimulus for the hormone secretion. In response to the activation of its sympathetic nerve supply and factually with sympathetic stimulation, the neuroendocrine, chromaffin cells of the inner adrenal medulla secrete the catecholamines epinephrine and norepinephrine.
4 pages (1000 words) Essay
Environment xenoestrogens
There is currently substantial attention in endocrine interruption which is a new region of endocrinology concerned with the chemicals that impersonate hormones, specifically the sex steroids. The hypothesis is that exposure to such type of chemicals may be to blame for the unfavourable effects to both wildlife and humans.
3 pages (750 words) Essay
Homeostasis
Thus internal environment of the body is maintained by a close surveillance system and timely response to any change which may affect homeostasis. This adjustment of physiological systems within the body is called homeostatic regulation (Wikiepedia 2007).
4 pages (1000 words) Essay
Biomarkers
The term biomarker encompasses all biological material ranging from bio-molecules such as nucleic acids and proteins (e.g. enzymes) to organelles, cells, tissues, organs and whole organisms which may effect survival of a living being. Biomarkers can be used for analyzing the responses of an organism to the various environmental factors and their effects in its development and reproduction.
4 pages (1000 words) Essay
Biochemistry Master Essay
In many tissues, such as: adrenal glands, ovaries, placenta, testicles, adipose tissue and brain it catalyzes the conversion of testosterone to estradiol. Aromatase inhibitor has no influence on estrogen output from ovaries, but it has influence by interfering with the body's use of aromatase.
4 pages (1000 words) Essay
Human biology Essay
The central nervous system (CNS) is the largest part of the nervous system, and includes the brain and spinal cord. The spinal cavity holds and protects the spinal cord, while the head contains and protects the brain. The CNS is covered by the meninges, a three layered protective coat.
14 pages (3500 words) Essay
Find out how much would it cost
to get a custom paper written by a pro under your requirements!
Win a special DISCOUNT!
Put in your e-mail and click the button with your lucky finger
Your email
YOUR PRIZE:
Apply my DISCOUNT