The subcommissural organ of Lacerta s. sicula Raf.: Functional studies |
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Authors: | Dr V D'Uva G Ciarcia A Ciarletta |
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Institution: | (1) Istituto di Istologia ed Embriologia, Università degli Studi di Napoli, Via Mezzocannone, 8, 80134 Napoli, Italy |
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Abstract: | Summary The secretory activity of the subcommissural organ (SCO) is affected by adrenalectomy, adrenalectomy + castration, and by an increase in ambient temperature in adrenalectomized and adrenalectomized + castrated animals. Adrenalectomy inhibits the activity of the SCO. After adrenalectomy + castration the decrease in the secretory activity of the SCO is more rapid. In contrast, an increase in the ambient temperature in adrenalectomized animals induces a recrudescence of the activity of the SCO. The increase in temperature in castrated + adrenalectomized lizards does not affect the inhibition produced by this type of surgical treatment. The histological changes are discussed on the basis of results obtained in the present study and in previous experiments.This work was presented at the First Colloquium of the European Pineal Study Group , November 20–24, 1978, in Amsterdam |
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Keywords: | Subcommissural organ Adrenalectomy Castration Lacerta s sicula Raf (Lacertilia) |
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