Charcot-Marie-Tooth disease type 1A: association with a spontaneous point mutation in the PMP22 gene
Article Abstract:
Researchers have identified an additional gene mutation that can cause Charcot-Marie-Tooth (CMT) disease type 1. CMT is a degenerative nerve disease that leads to increasing weakness of the hands, feet and legs. Type 1A is the most common form of CMT and is associated with a duplication of part of the PMP22 gene. Molecular analysis of the DNA of 32 patients with CMT type 1, but without the duplication associated with type 1A, indicated that there is another mutation on the PMP22 gene that can cause CMT. It is a point mutation in which one amino acid is substituted for another. The PMP22 gene produces a myelin protein, which is a component of the myelin sheath that surrounds nerves. Because nerve conduction studies and clinical findings for type 1 and type 1A patients are similar regardless of which mutation is present, the only way to determine which mutation is responsible is by molecular analysis.
Publication Name: The New England Journal of Medicine
Subject: Health
ISSN: 0028-4793
Year: 1993
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Intravenous albumin for spontaneous bacterial peritonitis in patients with cirrhosis
Article Abstract:
Intravenous albumin may reduce the risks of kidney failure and death in patients with liver cirrhosis and spontaneous bacterial peritonitis. Liver failure in cirrhosis patients appear to result from inadequate blood flow to the kidneys. Expansion of the blood volume with albumin, a plasma protein derived from human blood, may improve kidney perfusion and better maintain kidney function. The high cost of albumin, however, argues for additional research to determine the right dose of albumin for effective therapy, and the particular patients most likely to benefit.
Publication Name: The New England Journal of Medicine
Subject: Health
ISSN: 0028-4793
Year: 1999
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Luteinizing hormone beta mutation and hypogonadism in men and women
Article Abstract:
The clinical characteristics of a consanguineous family wherein three siblings, two men and one woman, had hypogonadism linked to isolated luteinizing hormone deficiency is presented.
Publication Name: The New England Journal of Medicine
Subject: Health
ISSN: 0028-4793
Year: 2007
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