The concentrations of thyroxine (TJ and triiodothyronine (T,) were determined on samples of fresh sera from adult male and female newts during the course of forelimb regeneration by means of radioimmunoassay (RIA) methods. The results show that the circulatory levels of T, and T3 in males and female
Influence of hypophysectomy and starvation on blood glucose levels in the newt, notophthalmus viridescens
β Scribed by Connelly, Thomas G. ;Goldstein, Aida M. ;Yamada, Tuneo
- Publisher
- John Wiley and Sons
- Year
- 1974
- Tongue
- English
- Weight
- 284 KB
- Volume
- 188
- Category
- Article
- ISSN
- 0022-104X
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
Blood glucose and liver glycogen levels were determined in hypophysectomized, shamβoperated and unoperated control animals all of which had been starved for 10β15 days. The results show that starvation causes a significant decrease in newt blood glucose and that this decrease is not enhanced by hypophysectomy or shamβoperation during a 15βday period. These data indicate that effects of short periods of hypophysectomy on regenerating tissues are probably not due to a drop in available carbohydrate. However, the data do not indicate what the possible effects of longβterm hypophysectomy on blood glucose would be.
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