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Monoamines in the C cells of the thyroid gland of callithricid primates
Abstract:
The thyroid gland of three species of marmosets were studied with the Falck and Hillarp fluroescence technique for monoamines. Two types of fluorescent C cells were observed. The predominant type displayed the greenish (or blue) fluorescence characteristic of catecholamines. The other type displayed a yellowish fluorescence most probably due to 5-HT. The presence of monoamines in C cells now reported for the first time in Primates offers an interesting possibility for studying their presumed role in calcitonin secretion.
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