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Results of studies support the suggestion that alcohol treatment after weaning produces a delay in the onset of puberty and a decrease in the weight of sex organs of male rats. The effect of alcohol on other morphologic and behavioral indices related to sexual maturation, however, has not been evaluated. In the current study, chronic consumption of alcohol (6% ethanol) in male rats, from weaning to...
Spacing patterns are of fundamental importance in various repeated structures which develop at regular intervals such as feathers, teeth and insect ommatidia. The mouse tongue develops a regular papilla pattern and provides a good model to study pattern formation. We examined the expression patterns of the signalling molecules, sonic hedgehog (Shh), bone morphogenetic proteins -2 and -4 (Bmp-2 and...
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