CALCIUM CONTENT AND CONCRETIONS OF PINEAL GLANDS OF YOUNG AND OLD RATS - A SCANNING AND X-RAY MICROANALYTICAL STUDY

被引：35

作者：

HUMBERT, W

PEVET, P

机构：

[1] Laboratoire de Zoologie, CNRS-URA 1332 'Neurobiologie des fonctions rythmiques et saisonnières', Strasbourg, F-67000, 12, Rue de l'Université

来源：

CELL AND TISSUE RESEARCH | 1991年 / 263卷 / 03期

关键词：

PINEAL GLAND; CONCRETIONS; CALCIUM; X-RAY MICROANALYSIS; RAT (WISTAR);

D O I：

10.1007/BF00327294

中图分类号：

Q2 [细胞生物学];

学科分类号：

071009 ; 090102 ;

摘要：

Calcium content and pineal concretions were studied in young (2-3 months) and old (28 months) Wistar rats. Samples, deep-frozen by liquid propane/isopentane and freeze-dried were analysed by means of X-ray microanalysis in a scanning electron microscope. Total semi-quantitative measurements revealed that pineals of old rats showed a marked increase of calcium compared with the pineals of young rats. It is thus suggested that a calcium-rich environment is responsible for the growth of pineal concretions, which only appear in old rats. Pineal calcifications in rats could thus be an indicator of aging and/or of a degenerating state.

引用

页码：593 / 596

页数：4

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