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  • Title: Neurohypophysial-adrenal gland responses to water-deprivation in the rose-ringed parakeet.
    Author: Maiti BR, Ray D, Ghosh A.
    Journal: Z Mikrosk Anat Forsch; 1976; 90(1):175-83. PubMed ID: 1020418.
    Abstract:
    The aim of the present investigation is to study the relative influence of neuohypophysis, adrenal cortex and adrenal medulla under dehydration stress in the parakeet. Birds subjected to dehydration for 7 days lost body weight. Neurosecretory material (NSM) was partially depleted from the neurohypophysis. Adrenal gland weight was increased followed by a hypertrophy of the cortical tissue. A fall in adrenal cholesterol and ascorbic acid level was marked. Adrenaline and noradrenaline contents of the adrenal medulla were suppressed as was evident from cytochemical and biochemical findings. It is suggested that neurohypophysis, adrenal cortex and adrenal medulla are involved in maintaining water homeostasis in this avian species.
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