Sunday, July 17, 2011

Creutzfeldt-Jakob disease symptoms and treatments

Creutzfeldt-Jakob disease is marked by rapid mental deterioration, usually within a few months. Initial signs and symptoms of CJD typically include:<br /><br />Personality changes<br />Anxiety<br />Depression<br />Memory loss<br />Impaired thinking<br />Blurred vision<br />Insomnia<br />Difficulty speaking<br />Difficulty swallowing<br />Sudden jerky movements<br />As the disease progresses, mental symptoms worsen. Most people eventually lapse into a coma. Heart failure, respiratory failure, pneumonia or other infections are generally the cause of death. The disease usually runs its course in about seven months, although a few people may live up to one or two years after diagnosis.<br /><br />In people with the rarer vCJD, psychiatric symptoms may be more prominent in the beginning, with dementia &mdash; the loss of the ability to think, reason and remember &mdash; developing later in the course of the illness. In addition, this variant affects people at a younger age than classic CJD does, and appears to have a slightly longer duration &mdash; 12 to 14 months.<br /><br />Most cases of Creutzfeldt-Jakob disease occur for unknown reasons, and no risk factors can be identified. However, a few factors seem to be associated with different kinds of CJD.<br /><br />Age. Sporadic CJD tends to develop later in life, usually around the age of 60. Onset of familial CJD occurs only slightly earlier. On the other hand, vCJD has affected people at a much younger age, usually in their late 20s.<br />Genetics. People with familial CJD have a genetic mutation that causes the disease. The disease is inherited in an autosomal dominant fashion, which means you need to inherit only one copy of the mutated gene, from either parent, to develop the disease. If you have the mutation, the chance of passing it on to your children is 50 percent. Genetic analysis in people with iatrogenic and variant CJD suggest that inheriting identical copies of certain variants of the prion gene may predispose a person to developing CJD if exposed to contaminated tissue.<br />Exposure to contaminated tissue. People who've received human growth hormone derived from human pituitary glands or who've had dura mater grafts may be at risk of iatrogenic CJD. The risk of contracting vCJD from eating contaminated beef is difficult to determine. In general, if countries are effectively implementing public health measures, the risk is very low. For example, in the United Kingdom the current estimated risk of acquiring vCJD from beef and beef products appears to be about 1 case in 10 billion servings. The risk from beef in other high-incidence countries is estimated to be very low, as well.<br /><br />As with other causes of dementia, Creutzfeldt-Jakob disease profoundly affects the mind as well as the body, although CJD and its variants usually progress much more rapidly. People with CJD usually withdraw from friends and family and after a while lose the ability to recognize or relate to them in any meaningful way. They also cannot maintain the ability to care for themselves, and many eventually dive into a coma. The disease ultimately will be fatality.  <img src="http://theblogbooster.com/pixel.gif" width="0" height="0" style="border-top-style: none; border-right-style: none; border-bottom-style: none; border-left-style: none; border-width: initial; border-color: initial; " alt="" /><div class="zemanta-pixie"><img class="zemanta-pixie-img" alt="" src="http://img.zemanta.com/pixy.gif?x-id=0441b137-9d5a-4778-902b-1b8cb2236219" /></div>

Saturday, July 2, 2011

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Creutzfeldt-Jakob Disease (CJD) is a brain disorder that usually occurs in people over the age of 60. It is sometimes called a “spongiform” disease because the brain may develop holes in it like a sponge. There are four types of CJD: sporadic, variant, familial and iatrogenic. Sporadic CJD occurs spontaneously and is the most common type of CJD in the United States. Variant CJD is associated with eating beef in the United Kingdom during the “mad cow” epidemic. Familial CJD is inherited through a genetic mutation. Iatrogenic CJD is transmitted by contaminated surgical instruments in high risk surgeries involving transplants of brain and spinal cord tissue. Every year about one person out of every million is diagnosed with CJD, primarily sporadic. There is no known treatment; most people die within 3 to 12 months of onset of symptoms.  At first, CJD can seem a lot like other diseases of the elderly. Symptoms include behavioral changes, confusion, difficulty remembering recent events, and loss of feeling in the arms, legs, or face. Patients may lose their balance or seem uncoordinated; they may have difficulty walking or have muscle jerks and spasms. A brain wave test (EEG) is often helpful in the diagnosis. Other special testing includes cerebrospinal fluid 14–3–3 protein and blood tests for genetic mutation. To be sure the person has died of CJD an autopsy must be done.  It is not known how most people get this rare disease, although we do know you do not get it from being around someone with CJD. Approximately 10–15 percent of cases are inherited (familial CJD) and a few cases have been related to transplants of tissues from the nervous system (iatrogenic CJD). In 1995, the first case of variant CJD was recognized in the United Kingdom and has been linked to ingestion of foods from cattle infected with “mad cow disease.”  


More info from web md


Creutzfeldt-Jakob disease (CJD) is an extremely rare degenerative brain disorder (i.e., spongiform encephalopathy) characterized by sudden development of rapidly progressive neurological and neuromuscular symptoms. With symptom onset, affected individuals may develop confusion, depression, behavioral changes, impaired vision, and/or impaired coordination. As the disease progresses, there may be rapidly progressive deterioration of cognitive processes and memory (dementia), resulting in confusion and disorientation, impairment of memory control, personality disintegration, agitation, restlessness, and other symptoms and findings. Affected individuals also develop neuromuscular abnormalities such as muscle weakness and loss of muscle mass (wasting); irregular, rapid, shock-likemuscle spasms (myoclonus); and/or relatively slow, involuntary, continual writhing movements (athetosis), particularly of the arms and legs. Later stages of the disease may include further loss of physical and intellectual functions, a state of unconsciousness (coma), and increased susceptibility to repeated infections of the respiratory tract (e.g., pneumonia). In many affected individuals, life-threatening complications may develop less than a year after the disorder becomes apparent.

In approximately 90 percent of cases, CJD appears to occur randomly for no apparent reason (sporadically). About 10 percent of affected individuals may have a hereditary predisposition for the disorder. Reports in the medical literature suggest that familial cases of CJD are consistent with an autosomal dominant mode of inheritance. In addition, in some extremely rare cases, CJD may take an infectious form. The disorder is thought to result from changes (mutations) in the gene that regulates the production of the human prion protein or direct contamination (transmission) with abnormal prion protein in infected brain tissue.