Chlorcyclizine induction of cleft palate in the rat: degradation of palatal glycosaminoglycans.

Chlorcyclizine induction of cleft palate in the rat: degradation of palatal glycosaminoglycans.
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氯环嗪诱导大鼠腭裂:腭糖胺聚糖的降解。

DOI:
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发表时间:
1978
期刊:
Teratology
影响因子:
--
通讯作者:
R. Pratt
R. Pratt
中科院分区:
--
文献类型:
--
作者:
A. Wilk;C. King;R. Pratt

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给怀孕大鼠施用裂腭致畸剂氯环嗪或去甲氯环嗪会导致胚胎腭架中糖胺聚糖(GAG)的改变。体外脉冲追踪实验表明,去甲氯环嗪增强透明质酸和硫酸软骨素的降解,但对其合成影响很小或没有影响。 GAG 的这些变化是由去甲氯环利嗪浓度引起的,对 DNA 或蛋白质合成没有明显影响。这些发现表明,腭 GAG 的降解可能是去甲氯环利抑制腭架升高的主要生化缺陷。
Administration of the cleft palate teratogen chlorcyclizine or norchlorcyclizine to pregnant rats causes an alteration in glycosaminoglycans (GAGs) in embryonic palatal shelves. Pulse-chase experiments in vitro indicate that norchlorcyclizine enhances the degradation of hyaluronic acid and chondroitin sulfate but has little or no effect on their synthesis. These changes in GAGs are caused by concentrations of norchlorcyclizine that have no appreciable effect on DNA or protein synthesis. These findings suggest that degradation of palatal GAGs may be the primary biochemical defect responsible for the inhibition of palatal shelf elevation by norchlorcyclizine.
DOI: --
发表时间: 1976-10
期刊: Journal of embryology and experimental morphology
影响因子: --
作者:
R. Greene;R. Pratt
通讯作者: R. Greene;R. Pratt