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

Composting, C o m p o s t i n g It is a modification of a conv...

C o m p o s t i n g It is a modification of a conventional or solid manure handling system with anaerobic decomposition. Types of composting systems include windrow, b

Verify that the transforming agent in a bacteriophage, Which of the followi...

Which of the following experimental steps permitted Hershey and Chase to verify that the transforming agent in a bacteriophage is DNA as well? A. Phage particles were mixed wit

Pollutions, what is detergent pollution and it''s effects and causes

what is detergent pollution and it''s effects and causes

How does aldosterone act and where is it produced, How does aldosterone act...

How does aldosterone act and where is it produced? Aldosterone is a hormone that acts upon the nephron tubules stimulating the resorption of sodium. Thus it contributes to the

Pathogenic bacteria, Pathogenic bacteria Heterotrophic bacteria could ...

Pathogenic bacteria Heterotrophic bacteria could be divided into saprophytes and parasites. Saprophytes normally do not cause any disease and they survive on dead or decaying

Historic example of evolutionary quantitative geneticists, Define Historic ...

Define Historic Example of Evolutionary quantitative geneticists? Evolutionary quantitative geneticists have developed tools to create predictions about the short-range evoluti

How is the circulatory system of reptiles characterized, How is the circula...

How is the circulatory system of reptiles characterized? What is the basic difference among the reptile and the amphibian heart? The circulatory system of beings of the class R

Digestion, explain digestion in protozoans

explain digestion in protozoans

Low protein products, Foods with moderate amounts of protein can be eaten i...

Foods with moderate amounts of protein can be eaten in limited amounts. These foods include grains, bread, pasta, rice, potatoes, corn, and peas. Foods with little or no protein ar

Issues impacting health and development, Issues Impacting Health and Develo...

Issues Impacting Health and Development Poverty and malnutrition are the leading causes of high maternal and child mortality rates in developing countries. Together, they seri

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