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  • Article
    Grainger F, Sloper JC.
    Cell Tissue Res. 1976 Jun 28;169(3):405-14.
    Evidence has already been adduced suggesting that an increase in microtubular number occurs in the tractus hypophyseus of rats stressed by the administration of hypertonic saline, and of rats with congenital diabetes insipidus (CDI). Since the tractus hypophyseus in these animals shows high secretory activity, it seems likely that the microtubular increase reflects the participation of microtubules in axoplasmic transport. To exclude, however, a congenital microtubular abnormality in CDI, affected newborn rats were examined. In these, the microtubular number was normal, thus suggesting that the increase in microtubular number seen in adult animals was not a congenital morphological abnormality. However, by 4 days of age there was a slight but statistically significant increase in microtubular number in affected rats, a change probably attributable to increased secretory activity.
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