Pineal "synaptic" Ribbons and Spherules During the Estrous Cycle in Rats

Overview

Journal Anat Embryol (Berl)

Specialties Anatomy & Histology
Reproductive Medicine

Date 1983 Jan 1

PMID 6682638

Citations 6

Authors

B Kosaras

H A Welker

L Vollrath

Affiliations

Soon will be listed here.

Abstract

In previous studies pineal "synaptic" ribbons have been shown to undergo striking numerical changes under various physiological and experimental conditions and to be regulated by beta-adrenergic mechanisms. The aim of the present investigation was to study the numbers of pineal "synaptic" ribbons and spherules in Wistar rats throughout the estrous cycle and to compare them with those in males. There were no statistically significant differences in the numbers of ribbons and spherules between males and females and in the females at the different stages of the estrous cycle, indicating that the structures in question, in vivo, do not appear to be regulated by naturally occurring changes of sex steroid hormones and gonadotrophins.

Citing Articles

Correlation of the number of pineal "synaptic" ribbons and spherules with the level of serum melatonin over a 24-hour period in male rabbits.

Martinez Soriano F, Welker H, Vollrath L Cell Tissue Res. 1984; 236(3):555-60.

PMID: 6467335 DOI: 10.1007/BF00217222.

Depressive effect of LHRH on the numbers of "synaptic" ribbons and spherules in the pineal gland of diestrous rats.

Kosaras B, Welker H, Mess B, Vollrath L Cell Tissue Res. 1983; 229(2):461-6.

PMID: 6342792 DOI: 10.1007/BF00214988.

Influence of melatonin and serotonin on the number of rat pineal "synaptic" ribbons and spherules in vitro.

Vollrath L, Karasek M, Kosaras B, Kunert-Radek J, Lewinski A Cell Tissue Res. 1985; 242(3):607-11.

PMID: 4075379 DOI: 10.1007/BF00225426.

Melatonin formation in different parts of the guinea-pig pineal complex as assessed over 24 hours.

Welker H, Vollrath L J Neural Transm. 1985; 63(3-4):315-26.

PMID: 4067600 DOI: 10.1007/BF01252034.

Synaptic ribbon populations in the pineal gland of the rhesus monkey (Macaca mulatta).

McNulty J, Fox L, Taylor D, Miller M, Takaoka Y Cell Tissue Res. 1986; 243(2):353-7.

PMID: 3948238 DOI: 10.1007/BF00251051.

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