ISSN:
1432-0878
Keywords:
Circadian rhythm
;
Melatonin
;
Pineal gland
;
Synaptic ribbons
;
Synaptic spherules
;
Syrian hamster
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Summary In the present study, “synaptic” ribbons were studied morphologically and quantitatively in hamster pineal gland. The number of ribbons and spherules of hamster pinealocytes was counted over a 24-h period. The 24-h variations in the quantity of “synaptic” ribbons were found to parallel fluctuations in pineal melatonin concentrations. No significant circadian changes were observed for “synaptic” spherules, indicating different roles for these two structures.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00327758
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