Cerebral Atrophy, Brain Disorders.

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Cerebral Atrophy, Brain Disorders

 

Cerebral Atrophy, Brain Disorders
Cerebral atrophy is a common feature of many of the diseases that affect the brain. Atrophy of any tissue means loss of cells. In brain tissue, atrophy describes a loss of neurons and the connections between them. Atrophy can be generalized, which means that all of the brain has shrunk; or it can be focal, affecting only a limited area of the brain and resulting in a decrease of the functions that area of the brain controls. If the cerebral hemispheres (the two lobes of the brain that form the cerebrum) are affected, conscious thought and voluntary processes may be impaired.

Associated Diseases/Disorders: The pattern and rate of progression of cerebral atrophy depends on the disease involved. Diseases that cause cerebral atrophy include:

stroke and traumatic brain injury
Alzheimer’s disease, Pick’s disease, senile dementia, fronto-temporal dementia, and vascular dementia
cerebral palsy, in which lesions (damaged areas) may impair motor coordination
Huntington’s disease, and other gene-linked, hereditary diseases that cause build-up of toxic levels of proteins in neurons
leukodystrophies, such as Krabbe disease, which destroy the myelin sheath that protects axons
mitochondrial encephalomyopathies, such as Kearns-Sayre syndrome, which interfere with the basic functions of neurons
multiple sclerosis, which causes inflammation, myelin damage, and lesions in cerebral tissue
infectious diseases, such as encephalitis, neurosyphilis, and AIDS, in which an infectious agent or the inflammatory reaction to it destroys neurons and their axons
epilepsy, in which lesions cause abnormal electrochemical discharges that result in seizures
Symptoms: Many diseases that cause cerebral atrophy are associated with dementia, seizures, and a group of language disorders called the aphasias. Dementia is characterized by a progressive impairment of memory and intellectual function that is severe enough to interfere with social and work skills. Memory, orientation, abstraction, ability to learn, visual-spatial perception, and higher executive functions such as planning, organizing and sequencing may also be impaired. Seizures can take different forms, appearing as disorientation, strange repetitive movements, loss of consciousness, or convulsions. Aphasias are a group of disorders characterized by disturbances in speaking and understanding language. Receptive aphasia causes impaired comprehension. Expressive aphasia is reflected in odd choices of words, the use of partial phrases, disjointed clauses, and incomplete sentences.

Content Courtesy : www.ninds.nih.gov
Note : Information herein is provided for informational purposes only and is not a substitute for professional medical advice. You should not use this information for diagnosing or treating a medical or health condition. If you have or suspect you have a medical problem, promptly contact your professional healthcare provider. Please consult your healthcare provider before beginning any course of supplementation or treatment.

 

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Cerebral Atrophy, Brain Disorders.