Causes And Symptoms Of Transmissible Spongiform Encephalopathies

Creutzfeldt-Jakob Disease: It happens when a prion protein misfolds itself, thus causing a “domino effect” which unfolds itself causing a malfunction.

Proteinaceous Infectious Particles, commonly known as Prions, are extremely rare misfolds of the protein PrPc, which cause fatally neurodegenerative diseases, and are theorized to be infectious only by the protein itself (U.S National Library of Medicine, 1998). This “protein-only theory” is still heavily debated today, as some scientists deny the theory, and there isn’t a significant amount of evidence on each side to qualify the theory or disprove it (Soto, C. 2011). The base “Prion” protein is encoded in the gene PRNP, while being non-infectious. Prions are most commonly found in human prion diseases, but they can also be in other animals in the form of Mad Cow Disease and Chronic Wasting Disease, classified as Bovine Spongiform Encephalopathies

Creutzfeldt-Jakob disease is a degenerative brain disorder that leads to dementia and ultimately death. Symptoms of Creutzfeldt-Jakob disease (CJD) sometimes resemble those of other dementia-like brain disorders, such as Alzheimer's, but Creutzfeldt-Jakob disease usually progresses much more rapidly.

Humans have to deal with many different diseases and the ones most disliked are the ones with no cures. Like cancer, transmissible spongiform encephalopathies have no cure, but they are more rare. These diseases are prion diseases which cause the brain to deteriorate. Prions are proteins that sometimes behave like viruses, which mean that they should have some form of nucleic acid, but since they don’t, they cause abnormalities. The nervous system contains many normal prions, but when an abnormal prion comes along, it transforms all the normal prions into abnormal ones. Bovine spongiform encephalopathy is found in cattle, but it can be transmitted to humans.

Mad cow disease is to serious and deadly that it is not worth the risk of eating beef from a feedlot. Michael Pollan stated, "Mad cow is a brain disease that is always fatal. It is spread by eating the brains of infected animals" (56). Clearly mad cow disease will kill anyone that gets infected so it is not worth the risk to eat CAFO beef. In addition, "Ground-up cattle brains were put into cattle feed and some of those cows got mad cow disease. Human beings who ate infected beef also got the disease..." (Pollan and Chevat 56). This shows how completely unnatural CAFOs are and why people should not eat or buy CAFO meat. It also illustrates just how dangerous mad cow disease is; that people should be cautious by boycotting CAFO beef. However, an author for the Los Angeles Times, Paul Roberts said, “there has never been a confirmed case of mad cow disease connected with anyone eating U.S. beef" (Rodgers). Evidently getting mad cow disease in the U.S. is unlikely. Pollan retaliated by saying "Then people in England began dying of a sickness called mad cow disease" (55-56). This shows that although people have not eaten infected beef in the U.S. they have in other places. Therefore if people want to stay safe then they should not eat the beef produced in CAFOs so that they do not get mad cow

The word encephalitis is derived from two Greek words. Enkephalos, which means brain, and itis, which means inflammation. Encephalitis was defined by Sir John Burton Cleland, a pathologist and naturalist. When he defined it, it was named ‘Australian X disease’.

     Mad Cow Disease, scientifically referred to as (BSE) Bovine Spongiform Encephalopathy, is a disease that affects those humans who eat the meat from infected cows. Mad Cow Disease is one of several fatal brain diseases called (TSE) Transmissible Spongiform Encephalopathy. (USDA) There was evidence of a new illness resembling the sheep disease scrapie. It was technically named BSE but quickly acquired the mad cow tag because of the way infected cattle behave. (CNN) In 1997, there was an award given to Stanley Prusiner, for concluding that a distorted protein called a prion was responsible for Mad Cow Disease, noted the long incubation period made it difficult to distinguish (Bryant).

In bovine spongiform encephalopathy (BSE), the disease is caused by the misfolding of proteins that cause proteins and peptides to develop a fibrillary structure. The PrPc is a correctly folded prion and the misfolded form is called PrPSc. BSE occurs when the normal PrPc come into contact with the toxic PrPSc and the normal prion takes on the shape of the PrPSc. The normal chaperones are unable to convert the PrPSc back to the normal form. The PrPSc now takes on the role of chaperone and the conversion of PrPc prions continue over and over. PrPSc, now being hydrophobic avoids the water of the inner cell and begin to accumulate and form plaques along the neuronal cell membranes. The aggregation of the prions on the cell membrane eventually lead to cell death which produces the sponge-like appearance in the brain of cattle infected with BSE (Thompson, 2014).

Imagine that there is a disease that is terrible and causes trouble for you every day, there is no cure, there is only the dragging on of day after day. This is Tay Sachs Disease, it is a disease that is lifelong, that is, unless it kills you early on in life. This disease has lots of symptoms. These symptoms are a result of how the disease affects the brain and its functionality. This disease is an inherited disease, and is known as a serious genetic disease.(“Health and Wellness Resource center and Alternative Health Module”). This disease is a autosomally recessive disease that is caused by a defect in the HEXA gene which provides instructions for making part of an enzyme called beta hexosaminidase A, which is critical in the brain

Variant Creutzfeldt-Jakob disease (vCJD) is a rare and fatal human neurodegenerative condition falling under the category of Transmissible Spongiform Encephalopathy (TSE) because of having characteristic of spongy degeneration of the brain that it causes and its ability to be transmitted. First it was described in the United Kingdom in March 1996 and it has been connected with exposure to a TSE of cattle known as Bovine Spongiform Encephalopathy (BSE) sometimes called Classical BSE, having been reported first in 1986 in the United Kingdom.

This disease gets its name from the German neurologist Hans Gerhard Creutzfeldt and Alfons Maria Jakob that first identified this disease. (Victor, 2015) VCJD is primarily found in the brain of the cattle. Abnormal proteins called prions have thought to be the cause of this disease in both cattle and in humans. These prions cause tiny holes that look like a sponge under a microscope. (Melissa Conrad Stöppler, 2015) Unlike most viruses and bacteria these prions unfortunately do not die when exposed to heat, ultraviolet light, and radiation. Disinfectants that are usually used to kill viruses and bacteria also do not work to kill prions. Even cooking the meat very well will not lower the risk of prions in the

What is Mad Cow Disease? Mad Cow Disease "is a normally extremely rare neurological disorder that affects the central nervous system of an animal and a human. The disease infested brain of the animal or human is slowly, progressively, and severely damaged. It has been categorized as a disease, which falls into the category of a disease known as Spongiform Encephalopathy. Having Bovine Spongiform Encephalopathy is an over-dramatized way of specifying that one has diseased brain tissue which is; spongy, porous, and no

Mad Cow Disease Bovine spongiform encephalophathy ( BSE), which is mainly known as mad cow disease has infected the society and has put the lives of individuals at risk. This was very frightening to the people that ate meat during that time. The terrified people would not even want to eat hamburgers at MacDonald, steak at restaurant and much more. What also alarmed the people was the fact that there was a possibility of getting the human form of mad cow disease. This was called variant Creutzfeldt-Jakob disease (vCJD) which is through tainted blood, but this was only a theory which

Imagine what the world would be like if Hitler had gotten his way. He made it his life’s mission to eradicate any form of weakness from his society and possibly the world. Our society is constantly being plagued by diseases that threat public health. Even so, our generation has a lack of knowledge about the severity of these diseases resulting in false and distorted depictions in our media, and even in the minds of young people. Some of these diseases include Neurological diseases that are very common in our day and age. Disorders such as Multiple Sclerosis, Epilepsy, PTSD, and Dyslexia result in various detectable symptoms that can be visibly or internally disabling to an individual, but in spite of this, there are many approaches to assisting

Transmissible spongiform encephalopathies (TSEs) are neurodegenerative diseases that are thought to be caused by the misfolding of prion proteins. Prions are able to replicate in the absence of nucleic acids. TSEs include: scrapie, bovine spongiform encephalopathy, Creutzfeldt-Jakob disease, kuru, Gerstmann-Straussler-Scheinker disease, and Fatal Familial Insomnia. They can affect many different animals, including humans. Currently, there are no ways to diagnose, treat, or cure TSEs, as much more research is needed before these diseases are completely understood.