Bovine spongiform encephalopathy, Biology

Assignment Help:

Bovine spongiform encephalopathy

The bovine transmissible spongiform encephalopathy (BSE), known as 'mad cow disease'-first noticed in Great Britain in 1986, is similar to scrapie in sheep and Creustfeld Jacob syndrome (CJD) in man, chronic wasting disease of captive mule deer and rocky mountain elk and transmissible encephalopathies in mink. It has been reported from Northern Ireland, the Republic of Ireland, Oman, Switzerland, France, Germany and a few other European countries. There is no report of BSE in India so far although doubtful cases of CJD in human beings have been reported. The causative agent is structurally different from a virus in that it contains protein (PrP) which is a transformed naturally occurring protein constituent of neurons that is encoded by a single chromosomal gene and devoid of nucleic acid. This agent measures 30-50 nm and is extremely resistant to inactivation by heating, UV-irradiation and many chemicals. BSE is classified as Prion disease.


Epidemiology: The disease in cattle occurred as a result of feeding them with ruminant protein supplements in meat and bone-meal derived from scrapie-affected sheep.


Symptoms:
It is difficult to diagnose the disease on the basis of clinical signs since such signs are not quite spectacular. Histopathological and histochemical studies, electron microscopy and biochemical analysis for detection of prion protein are presently available for laboratory confirmation of the disease.Prevention, control and treatment: Identification and slaughtering of positive and suspected cases are the only means of control measures available at present


Related Discussions:- Bovine spongiform encephalopathy

What is asexual reproduction, What is Asexual Reproduction? Asexual re...

What is Asexual Reproduction? Asexual reproduction occurs in prokaryotes through the process of binary fission. Primitive eukaryotes and plants also reproduce by various t

Explain microbiology of fruits, Q. Explain Microbiology of fruits? Ans...

Q. Explain Microbiology of fruits? Ans. Fresh fruits, like vegetables, are in a close vicinity of ground and hence may have varied flora of microorganisms. Nature has

Evolutionary innovation presented by nematodes, Q. What is the major evolut...

Q. What is the major evolutionary innovation presented by nematodes? What is the benefits of that innovation? The major evolutionary innovation of nematodes is the complete dig

Define reflection - endodontic surgery, Define Reflection - Endodontic Surg...

Define Reflection - Endodontic Surgery -  Marginal gingival is very delicate and easily injured, therefore you should begin reflection of the vertical incision in the attached

Explain inborn errors of metabolism, Q.  Explain Inborn Errors of Metabolis...

Q.  Explain Inborn Errors of Metabolism? Some of the disorders caused by inborn error of metabolism namely phenylketonuria, tyrosinemia, maple syrup urine disease, homocystinur

Explain procedure for test the presence of sugar in honey, Procedure for Te...

Procedure for Test the Presence of Sugar in Honey? 1. Mix 5 grams of honey with 5 ml ether in a mortar and pestle. 2. Decant off the ether extract into an evaporating dish.

Symmetry system characterized in echinoderms, Q. How are the nervous and th...

Q. How are the nervous and the symmetry system characterized in echinoderms? Adult echinoderms, along with cnidarians, are the animals that present radial symmetry that is thei

Define characteristics of prebiotics, Define characteristics of prebiotics?...

Define characteristics of prebiotics? Characteristics of prebiotics Are non-digestible dietary/food ingredients Are not hydrolyzed/absorbed in the upper GIT, reach

Show estrogen level and the lh level in the menstrual cycle, Q. What is the...

Q. What is the relationship between the estrogen level and the LH level in the menstrual cycle? What is the function of LH in the menstrual cycle and when does its blood concentrat

Circulatory assist devices-open-heart surgery, Circulatory Assist Devic...

Circulatory Assist Devices :  Intra aortic balloon pump (IAUP) was introduced by Kantrowitz (19hX). It is also known as Counter pulsation or Diastolic augmentation.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd