Výsledky vyhledávání - "James E. Platt"

The use of ubiquitin as a marker of thyroxine-induced apoptosis in cultured Rana catesbeiana tail tips

Autor: Matthew E. Phillips, James E. Platt

Publikováno v: General and comparative endocrinology. 95(3)

Cultured Rana catesbeiana tadpole tail tips were used in combination with a fluoroimmunoassay to determine the levels of ubiquitin—a protein marker of programmed cell death in other systems—during the tissue regression induced by thyroxine (T4).

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bae5ee4d17a3575bfa8e27e6b5402050
https://pubmed.ncbi.nlm.nih.gov/7529737

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Inhibition of protein kinase C antagonizes in vitro tadpole tail fin regression induced by thyroxine

Autor: Douglas W. Petcoff, James E. Platt

Publikováno v: General and comparative endocrinology. 87(2)

Tail fin regression can be induced in anuran amphibians with L-thyroxine (T4). This regression can be antagonized with prolactin (PRL). Previous work had suggested that protein kinase C (PKC) was involved in PRL action. To address this issue further,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::affbff27e83b10ed32959c8a8850d697
https://pubmed.ncbi.nlm.nih.gov/1398014

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Effects of delaying injections of prolactin and actinomycin D on metamorphic changes in thyroxine-treatedAmbystoma tigrinum

Autor: James E. Platt, Daniel L. Luetkehans

Publikováno v: Journal of Experimental Zoology. 225:63-71

As a part of our continuing effort to understand the nature of the inhibition of thyroxine-induced metamorphosis by prolactin in the tiger salamander, we examined the effects of delaying the initiation of prolactin treatment for progressively longer

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f07d1c9245090965220902868ce210d4
https://doi.org/10.1002/jez.1402250109

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Mast cell histamine and ovarian follicular growth in the lizardAnolis carolinensis

Autor: Allan C. Collins, James E. Platt, Jan J. Roth, Richard E. Jones, Richard R. Tokarz

Publikováno v: Journal of Experimental Zoology. 193:343-351

The hypothesis is proposed that histamine released from mast cells in the theca of ovarian follicles increases thecal hyperemia and vessel permeability, and thus plays a role in follicular growth in Anolis carolinensis. Mast cells are present in the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0520113766547eee016a1decde4948b2
https://doi.org/10.1002/jez.1401930310

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The role of prolactin in blocking thyroxine-induced differentiation of tail tissue in larval and neotenic Ambystoma tigrinum

Autor: Marcia A. Christopher, James E. Platt, Constance A. Sullivan

Publikováno v: General and Comparative Endocrinology. 35:402-408

Previous work ( J. E. Platt and M. A. Christopher, 1977 , Gen. Comp. Endocrinol. , 31 , 243–248) had shown that a single injection of ovine prolactin (PRL) given to larval or neotenic tiger salamanders retarded tail fin regression induced in these

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::50d9bc4a71dd108c5cd21d49aadf7286
https://doi.org/10.1016/0016-6480(78)90134-x

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Effects of prolactin on the water and sodium content of larval tissues from neotenic and metamorphosing Ambystoma tigrinum

Autor: James E. Platt, Marcia A. Christopher

Publikováno v: General and Comparative Endocrinology. 31:243-248

Neotenic tiger salamanders (Ambystoma tigrinum) were injected with ovine prolactin (PL) or saline for 20 days. PL-treated animals had significantly greater gill lengths, tail heights, and wet body weights than controls. Analysis of the tail revealed

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::861046badda929597be7a8c8484032c4
https://doi.org/10.1016/0016-6480(77)90023-5

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Effects of oxytocin in larval Ambystoma tigrinum: Acceleration of induced metamorphosis and inhibition of the antimetamorphic action of prolactin

Autor: James E. Platt, Matthew J. LiCause

Publikováno v: General and Comparative Endocrinology. 41:84-91

Larval tiger salamanders induced to metamorphose with thyroxine were injected with oxytocin (100 mU/day) in order to assess the potential effect of neurohypophyseal contamination on the antimetamorphic activity of mammalian prolactin preparations. Un

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc4b2706c14ef360f46db52b4f71eb1e
https://doi.org/10.1016/0016-6480(80)90036-2

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