Literature DB >> 1878938

Calcium content and concretions of pineal glands of young and old rats. A scanning and X-ray microanalytical study.

W Humbert1, P Pévet.   

Abstract

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.

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Year:  1991        PMID： 1878938     DOI： 10.1007/bf00327294

Source DB:  PubMed          Journal:  Cell Tissue Res        ISSN： 0302-766X            Impact factor:   5.249


  17 in total

1.  X-RAY DIFFRACTION AND OTHER STUDIES OF THE CALCAREOUS DEPOSITS IN HUMAN PINEAL GLANDS.

Authors:  K M EARLE
Journal:  J Neuropathol Exp Neurol       Date:  1965-01       Impact factor: 3.685

2.  [Observation of three independent juxtapineal concrement bodies of the human brain and topochemical research of their calcium concrement and colloid balls in the adjacent nerve tissue].

Authors:  H VOSS
Journal:  Anat Anz       Date:  1957-11-30

3.  A combined scanning and transmission electron microscopic study and electron probe microanalysis of human pineal acervuli.

Authors:  R Krstić
Journal:  Cell Tissue Res       Date:  1976-10-22       Impact factor: 5.249

4.  Age-related changes in the intact and sympathetically denervated gerbil pineal gland.

Authors:  R J Reiter; M G Welsh; M K Vaughan
Journal:  Am J Anat       Date:  1976-08

5.  Ultrastructural and X-ray microprobe comparison of gerbil and human pineal acervuli.

Authors:  R Krstić; J Golaz
Journal:  Experientia       Date:  1977-04-15

6.  Role of intestinal mucus in crystal biogenesis: an electron-microscopical, diffraction and X-ray microanalytical study.

Authors:  W Humbert; J C Voegel; R Kirsch; V Simonneaux
Journal:  Cell Tissue Res       Date:  1989-03       Impact factor: 5.249

7.  Histophysiological evidence for the secretion of polypeptides by the pineal gland.

Authors:  A Lukaszyk; R J Reiter
Journal:  Am J Anat       Date:  1975-08

8.  Scanning electron microscopy and x-ray microanalysis of the human pineal body with emphasis on calcareous concretions.

Authors:  D J Allen; J S Allen; L J Didio; J A McGrath
Journal:  J Submicrosc Cytol       Date:  1981-10

9.  [Histochemical observations on corpora arenacea of human pineal body].

Authors:  G Palladini; L Alfei; L Appicciutoli
Journal:  Arch Ital Anat Embriol       Date:  1965-09

10.  Calcified inclusions in the superficial pineal gland of the mongolian gerbil, Meriones unguiculatus.

Authors:  J L Japha; T J Eder; E D Goldsmith
Journal:  Acta Anat (Basel)       Date:  1976
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  3 in total

1.  Ibotenic acid-induced calcium deposits in rat substantia nigra. Ultrastructure of their time-dependent formation.

Authors:  C Nitsch; A L Scotti
Journal:  Acta Neuropathol       Date:  1992       Impact factor: 17.088

Review 2.  Complementary and alternative medicine for sleep disturbances in older adults.

Authors:  Nalaka S Gooneratne
Journal:  Clin Geriatr Med       Date:  2008-02       Impact factor: 3.076

3.  Calcium concretions in the pineal gland of aged rats: an ultrastructural and microanalytical study of their biogenesis.

Authors:  W Humbert; P Pévet
Journal:  Cell Tissue Res       Date:  1995-03       Impact factor: 5.249
  3 in total

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