The hypophysis of Xenopus laevis Daudin larvae after removal of the anterior hypothalamus

Guardabassi, A.

doi:10.1016/0016-6480(61)90053-3

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1976

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Cited by 42 publications

(1 citation statement)

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“…On the basis of analogy with the mammalian hypothalamo-hypophysial system, in which prolactin secretion is under inhibitory control, they proposed that the tadpole growth factor might be prolactin. The observational basis for this suggestion has been confirmed, both with ectopic grafts (Brown, unpublished), and by hypothalectomy which also leaves the pituitary in a deafferented state (Hanoka, 1966;Remy and Bounhiol, 1966;Guardabassi et al, 1961).…”

Section: Mammalianmentioning

confidence: 87%

Effects of prolactin and somatotropin on growth and metamorphosis of amphibians

Frye

Brown

Snyder

1972

General and Comparative Endocrinology

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Section: Mammalianmentioning

confidence: 87%

Effects of prolactin and somatotropin on growth and metamorphosis of amphibians

Frye

Brown

Snyder

1972

General and Comparative Endocrinology

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Distribution of ACTH in the hypophysis of necturus

Aplington

Vernikos‐Danellis

1968

Anat. Rec.

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The winter Necturus hypophysis both whole and selectively divided was extracted in N/10 HC1 (0.25 ml per gland or gland portion). Extracts were diluted with normal saline ( 1 : l O O and 1:400) and injiected 2 m l / l O O gm body weight) into groups of 10 or 12 male, hydrocortisone-blockcd assay rats (method of Hodges and Vernikos ('60). Groups of control hydrocortisone-blocked male rats received corresponding volumes of a standard ACTH solution. ACTH content of extracts was appraised bv measurine the adrenal ascorbic acid dedetjion induced as comuared with control dkpletions. A1 2 + 2 assay design was employed; results and tdeir fiducial limitsThe ACTH content of the anterior zone of pars buccalis is that of the entire hypophysis. No ACTH was detected in gland portions consisting of the basophilic bed and transitional zone of pars buccalis plus the neural lobe of pars neuralis. ACTH occurs throughout the anterior zone but is more abundant in its caudal two-thirds both in milliunits ( m u ) per milliliter of extract and mU/mg of pituitary tissue. This distribution of corticotrophic activity is coincident with the distribution of anterior zone acidophile cells.Regional and cellular sources of ACTH in mammals and amphibia are discussed.

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Neuroendocrinology

Hanke¹

1976

Frog Neurobiology

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The hypophysis of Xenopus laevis Daudin larvae after removal of the anterior hypothalamus

Cited by 42 publications

References 30 publications

Effects of prolactin and somatotropin on growth and metamorphosis of amphibians

Effects of prolactin and somatotropin on growth and metamorphosis of amphibians

Distribution of ACTH in the hypophysis of necturus

Neuroendocrinology

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