Source:http://linkedlifedata.com/resource/pubmed/id/12381771
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
2002-10-16
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pubmed:abstractText |
Myocyte-specific necrosis in the heart and soleus muscle of adult male Wistar rats was investigated in response to a single subcutaneous injection of the anabolic beta(2)-adrenergic receptor agonist clenbuterol. Necrosis was immunohistochemically detected by administration of a myosin antibody 1 h before the clenbuterol challenge and quantified by using image analysis. Clenbuterol-induced myocyte necrosis occurred against a background of zero damage in control muscles. In the heart, the clenbuterol-induced necrosis was not uniform, being more abundant in the left subendocardium and peaking 2.4 mm from the apex. After position (2.4 mm from the apex), dose (5 mg clenbuterol/kg), and sampling time (12 h) were optimized, maximum cardiomyocyte necrosis was found to be 1.0 +/- 0.2%. In response to the same parameters (i.e., 5 mg of clenbuterol and sampled at 12 h), skeletal myocyte necrosis was 4.4 +/- 0.8% in the soleus. These data show significant myocyte-specific necrosis in the heart and skeletal muscle of the rat. Such irreversible damage in the heart suggests that clenbuterol may be damaging to long-term health.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
8750-7587
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
93
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1824-32
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:12381771-Adrenergic beta-Agonists,
pubmed-meshheading:12381771-Animals,
pubmed-meshheading:12381771-Clenbuterol,
pubmed-meshheading:12381771-Dose-Response Relationship, Drug,
pubmed-meshheading:12381771-Heart,
pubmed-meshheading:12381771-Injections, Subcutaneous,
pubmed-meshheading:12381771-Intubation, Gastrointestinal,
pubmed-meshheading:12381771-Male,
pubmed-meshheading:12381771-Muscle, Skeletal,
pubmed-meshheading:12381771-Muscle Fibers, Skeletal,
pubmed-meshheading:12381771-Myocardium,
pubmed-meshheading:12381771-Myocytes, Cardiac,
pubmed-meshheading:12381771-Necrosis,
pubmed-meshheading:12381771-Rats,
pubmed-meshheading:12381771-Rats, Wistar,
pubmed-meshheading:12381771-Receptors, Adrenergic, beta,
pubmed-meshheading:12381771-Time Factors
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pubmed:year |
2002
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pubmed:articleTitle |
Myotoxic effects of clenbuterol in the rat heart and soleus muscle.
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pubmed:affiliation |
Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool L3 2ET, United Kingdom. hhsjburn@livjm.ac.jp
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pubmed:publicationType |
Journal Article
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