Linked Life Data

11287081

Source:http://linkedlifedata.com/resource/pubmed/id/11287081

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2001-4-5
pubmed:abstractText
The beta(2)-adrenergic agonist clenbuterol is known for its anabolic action on normal and atrophied muscles. The aim of this work was to evaluate if chronic clenbuterol administration could prevent alterations in the locomotor activity induced by hindlimb suspension. The effects of clenbuterol were evaluated in three studies: muscle morphological characteristics, observation of locomotor movement and electromyographic activity of soleus and gastrocnemius muscles. Rats were divided into four groups: control (CON, morphological study only), hindlimb suspended (HS), clenbuterol administered (CB, 2 mg kg(-1) per day in drinking water), and hindlimb suspended+clenbuterol administered (HSCB). The soleus muscle weight was reduced in the two suspended groups (HS and HSCB) but did not change after clenbuterol treatment. By contrast, the gastrocnemius weight was not affected by suspension but was increased by clenbuterol (CB and HSCB). Some locomotor deficits were always observed in HS rats (unstable gait, ankle hyperextension, ellipsis). Clenbuterol administration did not prevent these perturbations. Cycle duration and soleus burst duration were increased in the three groups. Soleus mean EMG (burst area/duration) was decreased in HS rats, but not in the two other groups. For the gastrocnemius, burst duration was increased in CB rats, decreased in HSCB rats and unchanged in HS ones; mean EMG did not change. In conclusion, clenbuterol cannot be used as a countermeasure to reduce the alteration in locomotor performance. Moreover, our results suggest that this alteration is specifically related to changes in neuronal properties.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0166-4328
pubmed:author
pubmed:issnType
Print
pubmed:volume
122
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
103-12
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Effect of the beta(2)-agonist clenbuterol on the locomotor activity of rat submitted to a 14-day period of hypodynamia-hypokinesia.
pubmed:affiliation
Laboratoire de Plasticité Neuromusculaire, Université des Sciences et Technologies de Lille, Bât. SN4, F-59655, Cedex, Villeneuve d'Ascq, France. canu@pop.univ-lillel.fr
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't