Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1998-6-12
pubmed:abstractText
Calpain is thought to be involved in muscular degradation in progressive muscular dystrophy (PMD), especially Duchenne and Becker muscular dystrophies. To assess the expression of calpain genes in skeletal muscles of patients with myopathies, we examined mRNA levels of three calpain isoforms by the quantitative reverse transcriptase-polymerase chain reaction method in biopsied muscles from control, PMD and amyotrophic lateral sclerosis (ALS) patients. There was a statistically significant increase in calpain 1 and calpain 2 mRNA levels in PMD and ALS patients as compared to controls. In contrast, there was a decrease in expression of calpain 3 mRNA in PMD, but it was not statistically significant. Expression of calpain 1 and calpain 2 positively correlated with each other, but not with calpain 3. These results indicate that expression of calpain 1 and calpain 2, but not calpain 3, are upregulated in diseased human muscles, likely playing a regulatory role in the process of myofibrillar degradation at the transcriptional as well as posttranslational level.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0022-510X
pubmed:author
pubmed:issnType
Print
pubmed:day
5
pubmed:volume
155
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
163-9
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Expression of three calpain isoform genes in human skeletal muscles.
pubmed:affiliation
Third Department of Internal Medicine, Oita Medical University, Japan.
pubmed:publicationType
Journal Article