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Topic: Atrophy


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In the News (Mon 28 May 12)

  
  Atrophy - Wikipedia, the free encyclopedia
Atrophy is the partial or complete wasting away of a part of the body.
Atrophy is a general physiological process of reabsorption and breakdown of tissues, involving apoptosis on a cellular level.
Examples of atrophy as part of normal development include shrinkage and involution of the thymus in early childhood and the tonsils in adolescence.
en.wikipedia.org /wiki/Atrophy   (342 words)

  
 Dorlands Medical Dictionary
atrophy in which the affected viscus assumes a brownish hue, due to intracellular accumulation of lipofuscin; it is seen chiefly in the heart, liver, and spleen of the elderly.
atrophy of an endocrine organ presumably caused by prolonged overwork of that organ.
atrophy of an organ in the course of infectious disease.
www.mercksource.com /pp/us/cns/cns_hl_dorlands.jspzQzpgzEzzSzppdocszSzuszSzcommonzSzdorlandszSzdorlandzSzdmd_a_72zPzhtm   (2436 words)

  
 Spinal muscular atrophy - Genetics Home Reference
Spinal muscular atrophy is divided into subtypes based on the severity and age of onset of symptoms.
Mutations in the SMN1 and VAPB genes cause spinal muscular atrophy.
Finkel type spinal muscular atrophy is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder.
ghr.nlm.nih.gov /condition=spinalmuscularatrophy   (888 words)

  
 Optic atrophy
Optic atrophy may also be referred to as optic nerve head pallor because of the pale appearance of the optic nerve head as seen at the back of the eye.
Symptoms of optic atrophy are a change in the optic disc and a decrease in visual function.
Nutritional deficiencies and poisons can be associated with gradual vision loss and optic atrophy, or with sudden vision loss and optic disc swelling.
www.healthatoz.com /healthatoz/Atoz/ency/optic_atrophy.jsp   (1227 words)

  
 Olivopontocerebellar atrophy - Wikipedia, the free encyclopedia
Olivopontocerebellar atrophy (OPCA) are a group of diseases characterized by neuronal degeneration in the cerebellum, pontine nuclei, and inferior olive.
Olivopontocerebellar atrophy is group of disorders which overlap certain other groups, such as spinocerebellar ataxia (SCA).
Some but not all types of SCA are in the Olivopontocerebellar atrophy group.
en.wikipedia.org /wiki/Olivopontocerebellar_Atrophy   (185 words)

  
 Fact Sheet Optic Nerve Atrophy
TM Optic Nerve Atrophy (ONA) is a permanent visual impairment caused by damage to the optic nerve.
Atrophy (wasting away) may be partial in which some axons are damaged or profound in which most axons are damaged.
Optic atrophy which occurs in both eyes from time of birth (bilateral and congenital) may cause rhythmic, involuntary eye movements (nystagmus).
www.blindbabies.org /factsheet_ona.htm   (988 words)

  
 Cerebral Atrophy Information Page: National Institute of Neurological Disorders and Stroke (NINDS)
Cerebral atrophy is a common feature of many of the diseases that affect the brain.
Atrophy of any tissue means loss of cells.
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.
www.ninds.nih.gov /disorders/cerebral_atrophy/cerebral_atrophy.htm   (534 words)

  
 Spinal and bulbar muscular atrophy - Genetics Home Reference
Spinal and bulbar muscular atrophy is a disorder of specialized nerve cells that control muscle movement (motor neurons).
Mutations in the AR gene cause spinal and bulbar muscular atrophy.
In people with spinal and bulbar muscular atrophy, the CAG segment is repeated at least 38 times, and may be two or three times its usual length.
ghr.nlm.nih.gov /condition=spinalandbulbarmuscularatrophy   (809 words)

  
 Thymus förtvining, atrophy, PCB, dioxin, vitaminer   (Site not responding. Last check: 2007-11-07)
The atrophy was predominantly observed in the cortical
immunotoxicity in the DBA/2J strain, and that the thymic atrophy and
thymus atrophy, inhibition of T-lymphocyte blastogenic response in
hem.passagen.se /cnyland/thymus.html   (9380 words)

  
 Spinal Muscular Atrophy
Spinal muscular atrophy is a rare degenerative problem that affects the spinal cord and nerves, resulting in muscle wasting and weakness.
Spinal muscular atrophy is sometimes difficult to diagnose, as symptoms can resemble other conditions or medical problems.
The diagnosis of spinal muscular atrophy is made after the sudden or gradual onset of specific symptoms and after diagnostic testing.
www.healthsystem.virginia.edu /uvahealth/peds_neuro/sma.cfm   (678 words)

  
 SPINAL MUSCULAR ATROPHY   (Site not responding. Last check: 2007-11-07)
Spinal Muscular Atrophy (SMA) is one of the neuromuscular diseases.
Muscles weaken and waste away (atrophy) due to degeneration of motor neurones which are nerve cells in the spinal cord.
Intermediate spinal muscular atrophy is situated somewhere between the infantile and juvenile types in its age of onset and severity.
www.mda.org.au /specific/mdasma.html   (2253 words)

  
 Testicular Atrophy
The incidence of testicular atrophy is up to 0.5% after primary repair and up to 5% after recurrent hernia repair.
The primary etiology of testicular atrophy is surgical trauma to the testicular veins of the spermatic cord.
Given the increased incidence of testicular atrophy after recurrent hernia repair, leaders in the field of hernia repair have suggested that ³...it probably is ill advised to perform simultaneous bilateral indirect inguinal hernia hernioplasty if an indirect sac has been excised, for fear of causing bilateral testicular atrophy.
www.tabexperts.com /TesticularAtrophy.htm   (701 words)

  
 Spinal Muscular Atrophy
Spinal muscular atrophy (SMA) is characterized by progressive muscle weakness resulting from degeneration and loss of the anterior horn cells (i.e., lower motor neurons) in the spinal cord and the brain stem nuclei.
X-linked spinal and bulbar muscular atrophy (SBMA), also known as Kennedy disease, is a gradually progressive neuromuscular disorder in adult men in which degeneration of lower motor neurons results in proximal muscle weakness, muscle atrophy, and fasciculations beginning between ages 20 and 50 years.
Spinal muscular atrophy is inherited in an autosomal recessive manner.
www.geneclinics.org /profiles/sma/details.html   (4579 words)

  
 Optic atrophy   (Site not responding. Last check: 2007-11-07)
Optic atrophy secondary to vascular, traumatic, degenerative, and some toxic causes has a negative prognosis.
The child may not be aware of these fluctuations; the classroom teacher should be alerted to their possibility.
Optic nerve hypoplasia is an undeveloped optic nerve due to a neurological insult early in the prenatal developmental period; the optic nerve has started to develop, but regresses.
www.tsbvi.edu /Education/anomalies/optic_atrophy.htm   (376 words)

  
 Optic Atrophy: Definition, Symptoms, and Treatment - Kellogg Eye Center
Optic atrophy means the loss of some (resulting in little visual change) or most (resulting in severe visual loss) of the nerve fibers in the optic nerve.
Optic atrophy can occur in people where the optic nerve or nerves did not develop properly.
If optic atrophy is present, this small disc will appear pale or white, indicating loss of nerve fibers.
www.kellogg.umich.edu /patientcare/conditions/optic.atrophy.html   (386 words)

  
 Optic Atrophy
Optic atrophy is the medical term used to describe the loss of some or all of the nerve fibers in the optic nerve.
For example, some people are born with optic atrophy because the optic nerves did not develop properly.
Other people inherit the problem from parents or others in their family- Optic atrophy may also result from inflammations of the optic nerve, from failure of circulation to the optic nerve, and from glaucoma (eye pressure too high).
www.negreyjahnle.com /eyeConditions/opticAtrophy.htm   (452 words)

  
 Optic Atrophy
Optic atrophy is a condition that affects the optic nerve, which carries impulses from the eye to the brain.
Optic atrophy is not a disease, but rather a sign of a potentially more serious condition.
In the case of optic atrophy, something is interfering with the optic nerve’s ability to transmit these impulses.
www.clevelandclinic.org /health/health-info/docs/3800/3864.asp?index=12326   (529 words)

  
 MedlinePlus Medical Encyclopedia: Muscle atrophy
Muscle atrophy refers to the wasting or loss of muscle tissue resulting from disease or lack of use.
This type of atrophy is reversible with vigorous exercise.
Muscle atrophy resulting from disease rather than disuse is generally one of two types, that resulting from damage to the nerves that supply the muscles, and disease of the muscle itself.
www.nlm.nih.gov /medlineplus/ency/article/003188.htm   (491 words)

  
 Disease - Optic nerve atrophy - Detroit, Michigan
Optic nerve atrophy involves tissue death of the nerve that carries the information of vision from the eye to the brain.
In addition, the condition can be caused by diseases of the brain and central nervous system, such as multiple sclerosis, brain tumor, and stroke.
Optic nerve atrophy causes dimming of vision and reduction of the field of vision.
www.henryfordhealth.org /12562.cfm   (423 words)

  
 Hemifacial Atrophy
Although the atrophy is usually confined to one side of the face and cranium, it may occasionally spread to the neck and one side of the body
A case report of hemifacial atrophy is presented in the study, in which simple prosthetic appliance was used to manage them.
The affected area extends progressively with the atrophy of the skin, subcutaneous tissue, the muscles, bones, cartilages, alveolar bone and soft palate on that side of the face.
www.ispub.com /ostia/index.php?xmlFilePath=journals/ijds/vol1n1/hemifacial.xml   (2529 words)

  
 Muscle atrophy   (Site not responding. Last check: 2007-11-07)
The majority of muscle atrophy in the general population results from disuse.
Examples of diseases affecting the nerves that control muscles would be poliomyelitis, amyotrophic lateral sclerosis (ALS or Lou Gehrig's disease), and Guillain-Barre syndrome.
The extent of atrophy will be determined by observation and limb circumference measurements.
www.shands.org /health/information/article/003188.htm   (383 words)

  
 Regeneron | Research | Diseases | Muscle Atrophy   (Site not responding. Last check: 2007-11-07)
Many different medical conditions cause muscle shrinkage, or atrophy, such as when a patient suffers from cancer or AIDS, or simply when a limb is casted following injury, or even when a patient undergoes prolonged bed rest.
Furthermore, the normal atrophy that accompanies aging, termed sarcopenia, can contribute to debilitating fraility in older patients.
Muscle size is maintained by a balance between processes that promote muscle growth via increasing protein synthesis, and processes that cause muscle atrophy by initiating protein degradation.
www.regeneron.com /research/disease_template.asp?v_c_id=16   (291 words)

  
 Atrophy of superior cerebellar peduncle in progressive supranuclear palsy -- Tsuboi et al. 60 (11): 1766 -- Neurology
Atrophy of superior cerebellar peduncle in progressive supranuclear palsy -- Tsuboi et al.
Atrophy of superior cerebellar peduncle in progressive supranuclear palsy
Conclusions: SCP atrophy is common in PSP and correlates with
www.neurology.org /cgi/content/abstract/60/11/1766   (458 words)

  
 Multisystem Atrophy - Overview, Incidence, & Anatomy - neurologychannel
Multisystem atrophy (MSA) is a group of rare, multisystem degenerative diseases that have several clinical features of Parkinson's disease and are sometimes referred to as the "Parkinsonism-plus syndromes."
Now, Shy-Drager Syndrome is recognized as one of three manifestations of multisystem atrophy.
The other two are striatonigral degeneration and olivopontocerebellar atrophy (OPCA).
neurologychannel.com /msa   (391 words)

  
 eMedicine - Multiple System Atrophy : Article by André Diedrich, MD, PhD   (Site not responding. Last check: 2007-11-07)
When cerebellar features predominate, MSA sometimes is called sporadic olivopontocerebellar atrophy (OPCA) or MSA-C. Table 7 summarizes the clinical and diagnostic distinctions between MSA and pure autonomic dysfunction.
OPCA, and cerebellar atrophy, and the putaminal lesions of striatonigral degeneration are often detected by using MR techniques.
Kimber JR, Watson L, Mathias CJ: Distinction of idiopathic Parkinson's disease from multiple-system atrophy by stimulation of growth-hormone release with clonidine.
www.emedicine.com /neuro/topic671.htm   (7279 words)

  
 HerbChina2000.com - Herbal Remedies - Optic atrophy
In primary optic atrophy (usually due to pathology distant from the nerve head), the disk is white or grayish with sharp edges.
The lamina cribrosa is clearly visible in the physiologic cup, and the retina is usually normal.
In secondary optic atrophy (usually due to pathology at the nerve head), the disk is dirty-white with irregular, indistinct margins and is covered by glial tissue that conceals the lamina cribrosa.
www.herbchina2000.com /therapies/XPA.shtml   (943 words)

  
 Mapping the evolution of regional atrophy in Alzheimer's disease: Unbiased analysis of fluid-registered serial MRI -- ...
atrophy were seen in presymptomatic and mildly affected patients.
atrophy is already occurring before the onset of symptoms.
atrophy of the precuneus from symptom onset of the disease.
www.pnas.org /cgi/content/full/99/7/4703   (4007 words)

  
 Introduction: Spinal Muscular Atrophy - WrongDiagnosis.com
Spinal Muscular Atrophy information: Spinal muscular atrophy (SMA) is a genetic, motor neuron disease characterized by wasting of the skeletal muscles caused by progressive degeneration of the anterior horn cells of the spinal cord.
Researching symptoms of Spinal Muscular Atrophy: Further information about the symptoms of Spinal Muscular Atrophy is available including a list of symptoms of Spinal Muscular Atrophy, other diseases that might have similar symptoms in differential diagnosis of Spinal Muscular Atrophy, or alternatively return to research other symptoms in the symptom center.
Statistics and Spinal Muscular Atrophy: Various sources and calculations are available in statistics about Spinal Muscular Atrophy, prevalence and incidence statistics for Spinal Muscular Atrophy, and you can also research other medical statistics in our statistics center.
www.wrongdiagnosis.com /s/spinal_muscular_atrophy/intro.htm   (310 words)

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