Difference between revisions of "Endocrine system"

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Definition|title= endocrine system
 
Definition|title= endocrine system
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== Notes ==
 
== Notes ==
  
The endocrine system can be disrupted by a variety of [[Endocrine_disrupting_compounds|compounds]], including [[DDT]], [[PCB]], [[PBDE]], [[TBT]] and [[APE]], and affect the fauna of the [[Endocrine disrupting compounds in the coastal environment|coastal environment]].
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The endocrine system can be disrupted by a variety of [[Endocrine_disrupting_compounds|compounds]], which may markedly affect the fauna of the [[Endocrine disrupting compounds in the coastal environment|coastal environment]]. The main area of concern for the effect of these compounds are the steroid hormones produced by the gonads which, in conjunction with some other hormones (particularly those produced by the pituitary), control processes such as reproduction and sexual behaviour, fetal differentiation and development, and maturation. They also influence the immune system and general metabolism. It has been demonstrated that the compounds may reduce the fertility of wildlife. They might be responsible for reduced sperm counts in mammals, including humans, reduced penises and abnormal testis morphology in reptiles and feminization of the sexual behavior of male birds.  
 
 
It is suspected that these compounds reduce the fertility of wild life. These compounds might be responsible for the observed reduced sperm counts in panthers, reduced penises and abnormal testis morphology in alligators and feminization of the sexual behavior of male seagulls. It has also been suggested that these compounds are responsible for reduced fertility in humans. The sperm quality of humans have decreased world wide over the last 50 years, while the occurrence of testicular cancer and of cryptorchidism (the absence of one or both testes from the scrotum) has increased.
 
<ref>Dopp, E., Stopper, H., Alink, G.M. 2002, Natural and synthetic estrogens : aspects of the cellular and molecular activity Trivandrum, India : Research Signpost, p. 162.</ref> <ref>http://www.mindfully.org/Pesticide/2002/Potency-Phyto-Synthetic2002.htm</ref>
 
  
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<ref>Dopp, E., Stopper, H., Alink, G.M. 2002, Natural and synthetic estrogens : aspects of the cellular and molecular activity Trivandrum, India : Research Signpost, p. 162.</ref>
 
==References==
 
==References==
 
<references/>
 
<references/>

Latest revision as of 10:50, 7 June 2013




Definition of endocrine system:
The system of endocrine glands secreting a variety of hormones, which are controlled by peptide hormones released from the pituitary and by direct neural input.[1]
This is the common definition for endocrine system, other definitions can be discussed in the article

Notes

The endocrine system can be disrupted by a variety of compounds, which may markedly affect the fauna of the coastal environment. The main area of concern for the effect of these compounds are the steroid hormones produced by the gonads which, in conjunction with some other hormones (particularly those produced by the pituitary), control processes such as reproduction and sexual behaviour, fetal differentiation and development, and maturation. They also influence the immune system and general metabolism. It has been demonstrated that the compounds may reduce the fertility of wildlife. They might be responsible for reduced sperm counts in mammals, including humans, reduced penises and abnormal testis morphology in reptiles and feminization of the sexual behavior of male birds.

[2]

References

  1. Lawrence E (ed.), 2000. Henderson’s Dictionary of Biological Terms. 12th edition. Prentice Hall, Pearson Education Limited. Harlow, Great Britain.
  2. Dopp, E., Stopper, H., Alink, G.M. 2002, Natural and synthetic estrogens : aspects of the cellular and molecular activity Trivandrum, India : Research Signpost, p. 162.