Direct action of thyroxine analogues on molting in the adult newt

Kaltenbach, Jane C.; Clark, Nancy

doi:10.1016/0016-6480(65)90071-7

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1965

1982

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Cited by 11 publications

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“…Gradual dissolution of basement membranes is the prime factor in tail regression. Kaltenbach (1 ( )53) has shown the effect of thyroxin in producing localized metamorphosis in l\aua pipicns tadpoles, and Kaltenbach and Clark (1965) have demonstrated the direct effect of embedded pellets of thyroxin and thyroxin analogues on the skin of Diemictylus viridescens.…”

mentioning

confidence: 99%

Behavioral and Integumentary Changes Associated With Induced Metamorphosis in Diemictylus

Grant

Cooper

1965

The Biological Bulletin

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mentioning

confidence: 99%

Behavioral and Integumentary Changes Associated With Induced Metamorphosis in Diemictylus

Grant

Cooper

1965

The Biological Bulletin

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Local metamorphic action of thyroxine analogues in Rana pipiens larvae,

Kaltenbach¹

1970

J. Exp. Zool.

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To determine whether or not various thyroxine analogues accelerate metamorphosis by acting directly upon target organs, analogue-cholesterol pellets were prepared and implanted into the dorsal tail fins of Rana pipiens larvae. Many analogue implants caused localized fin resorption, a response attributed to the direct action of the analogue upon the fin. Analogues with acetic or propionic acid side chains or with an isopropyl group but no iodine atoms in the j 3 ring were effective in lower concentrations than was thyroxine; on this basis, the most active compounds were triiodothyropropionic acid and isopropyldiiodothyronine. Fin resorption was not induced by implants of diiodophenoxyacetic acids or of dihalogenated methoxythyranilines. Yet, intraorbital implants of these compounds did stimulate glandular development in the skin dorsal to the eye ( a region with a lower threshold of response to thyroxine than the tail fin). The causation of local metamorphic responses, either in the tail fin or in the orbital region, by various thyroxine analogues indicates the direct action of such compounds upon peripheral tissues of the tadpole.

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Vergleichende Histologie der Haut

Koecke¹

1968

Normale Und Pathologische Anatomie Der Haut I

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Direct action of thyroxine analogues on molting in the adult newt

Cited by 11 publications

References 38 publications

Behavioral and Integumentary Changes Associated With Induced Metamorphosis in Diemictylus

Behavioral and Integumentary Changes Associated With Induced Metamorphosis in Diemictylus

Local metamorphic action of thyroxine analogues in Rana pipiens larvae,

Vergleichende Histologie der Haut

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