Search results
Results from the WOW.Com Content Network
Muscle atrophy is the loss of skeletal muscle mass. It can be caused by immobility, aging, malnutrition, medications, or a wide range of injuries or diseases that impact the musculoskeletal or nervous system. Muscle atrophy leads to muscle weakness and causes disability.
Deficiency of BNIP3 leads to muscle inflammation and atrophy. [19] Furthermore, not every muscle is as susceptible to the atrophic effects of aging. For example, in both humans [20] and mice [21] it has been shown that lower leg muscles are not as susceptible to aging as upper leg muscles. This could perhaps be explained by the differential ...
Cachexia (/ k ə ˈ k ɛ k s i ə / [1]) is a syndrome that happens when people have certain illnesses, causing muscle loss that cannot be fully reversed with improved nutrition. [2] It is most common in diseases like cancer, congestive heart failure, chronic obstructive pulmonary disease, chronic kidney disease, and AIDS.
Cases of severe muscle atrophy or destruction may render the muscle too weak to show any reflex and should not be confused with a neuronal cause. [citation needed] Hyporeflexia may have other causes, including hypothyroidism, electrolyte imbalance (e.g., excess magnesium), and drug use (e.g, depressants). [1]
To an extent, these features can also be seen in normal aging (although technically, the apparent muscle wasting is sarcopenia rather than atrophy). [5] The term split hand syndrome was first coined in 1994 by a researcher from the Cleveland Clinic called Asa J. Wilbourn. [6] [7]
Neurological causes include radiculopathy, poliomyelitis, Charcot-Marie-Tooth disease, spinal muscular atrophy. [2] In pseudohypertrophy where the atrophied muscle tissue has been infiltrated by fat tissue, upon palpitation the seemingly large muscles feel doughy. [3] Not all muscles infiltrated by fat or other tissue are pseudohypertrophic.
This ultimately leads to muscle atrophy and myasthenia. Following an acute poliovirus infection, symptoms such as fatigue, asthenia, and pain are believed to be linked to muscle denervation. [9] Much like post-polio syndrome, ALS also has similar symptoms of motor neurodegeneration leading to general weakness and, in some cases, paralysis. The ...
Spinal and bulbar muscular atrophy (SBMA), popularly known as Kennedy's disease, is a rare, adult-onset, X-linked recessive lower motor neuron disease caused by trinucleotide CAG repeat expansions in exon 1 of the androgen receptor (AR) gene, which results in both loss of AR function and toxic gain of function.