Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1991-11-8
pubmed:abstractText
A total of 112 3-week old Wistar rats were separated into eight groups: control groups I-IV (n = 62) and propranolol-treated groups V-VIII (n = 50). Propranolol hydrochloride (100 mg/kg) was present in the rats' drinking water until 26 weeks of age and growth rates of all groups were monitored daily until 53 days of age and thereafter every third day throughout the study. Chronic oral propranolol administration produced growth retardation (P less than 0.05) in both sexes that was reversible when treatment was discontinued. Organ weights were generally smaller in propranolol-treated rats; on the other hand, the ratio of most organ weights per 100 g of body weight was greater in propranolol-treated rats (especially females). The radio-immunological determination of plasma growth hormone showed increased concentrations of growth hormone in propranolol-treated rats (P less than 0.05), whereas hypothalamic somatostatin content was not significantly changed. The results showed that the retarded growth rate following chronic oral propranolol administration to growing rats was independent of changes in plasma growth hormone and hypothalamic somatostatin concentrations, and that retardation was entirely reversible when the beta-adrenoceptor antagonist was discontinued.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0300-0605
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
296-304
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:articleTitle
Mechanism of growth retardation following chronic administration of beta-adrenoceptor antagonists to developing rats.
pubmed:affiliation
Second Department of Propeudetic Surgery, School of Medicine, University of Athens, Greece.
pubmed:publicationType
Journal Article