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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5-6
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pubmed:dateCreated |
1977-12-29
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pubmed:abstractText |
The effect of perinatal exposure to methadone on body growth and brain development was studied in rat. Female Sprague-Dawley albino rats received daily intraperitoneal injections of 5 mg/kg dl-methadone-HCl during gestation and lactation. Body weights were reduced in drug-treated mothers during gestation and the first 2 weeks of lactation. No differences in gestation time, litter size, or infant mortality were recorded, however methadone-treated offspring grew more slowly than controls. Weight deficits persisted in rats observed 5-1/2 weeks after cessationof drug exposure (group 1) and in animals continuing to receive daily interperitoneal injections of 5 mg/kg (group 2). From birth to day 21, brain weight and length, cerebral width and cerebellar weight and width were generally smaller in methadone-exposed rats. Brain measurements of group 1 and group 2 animals on day 60 revealed a reduction in brain and cerebellar weights and cerebral and cerebellar widths from control values. Brain:body weight and cerebellum:brain weight ratios were similar to controls. Analysis of these results indicates that maternal methadone treatment retards the growth of young rats and affects brain development.
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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:issn |
0006-3126
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
31
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
271-82
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:911959-Animals,
pubmed-meshheading:911959-Animals, Newborn,
pubmed-meshheading:911959-Body Weight,
pubmed-meshheading:911959-Brain,
pubmed-meshheading:911959-Cerebellum,
pubmed-meshheading:911959-Female,
pubmed-meshheading:911959-Fetus,
pubmed-meshheading:911959-Male,
pubmed-meshheading:911959-Maternal-Fetal Exchange,
pubmed-meshheading:911959-Methadone,
pubmed-meshheading:911959-Organ Size,
pubmed-meshheading:911959-Pregnancy,
pubmed-meshheading:911959-Rats
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pubmed:year |
1977
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pubmed:articleTitle |
Effect of chronic maternal methadone exposure on perinatal development.
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pubmed:publicationType |
Journal Article
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