Inhibition of Dunning tumor growth by melatonin

Injections of the pineal hormone melatonin reduced growth and increased doubling time of the R3327H Dunning prostatic adenocarcinoma in the Copenhagen X Fisher rat. This occurred even though testosterone levels (50% of normal) were ostensibly high enough to maintain normal tumor growth. Melatonin ma...

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Published inThe Journal of urology Vol. 139; no. 5; p. 1099
Main Authors Philo, R, Berkowitz, A S
Format Journal Article
LanguageEnglish
Published United States 01.05.1988
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Abstract Injections of the pineal hormone melatonin reduced growth and increased doubling time of the R3327H Dunning prostatic adenocarcinoma in the Copenhagen X Fisher rat. This occurred even though testosterone levels (50% of normal) were ostensibly high enough to maintain normal tumor growth. Melatonin may act directly upon the conversion of testosterone to dihydrotestosterone to inhibit tumor growth. Alternatively, a more complicated mechanism may be involved since studies on MCF breast cancer tissue indicate an estrogen requirement for inhibition of growth by melatonin.
AbstractList Injections of the pineal hormone melatonin reduced growth and increased doubling time of the R3327H Dunning prostatic adenocarcinoma in the Copenhagen X Fisher rat. This occurred even though testosterone levels (50% of normal) were ostensibly high enough to maintain normal tumor growth. Melatonin may act directly upon the conversion of testosterone to dihydrotestosterone to inhibit tumor growth. Alternatively, a more complicated mechanism may be involved since studies on MCF breast cancer tissue indicate an estrogen requirement for inhibition of growth by melatonin.
Author Philo, R
Berkowitz, A S
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Snippet Injections of the pineal hormone melatonin reduced growth and increased doubling time of the R3327H Dunning prostatic adenocarcinoma in the Copenhagen X Fisher...
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StartPage 1099
SubjectTerms Adenocarcinoma - drug therapy
Animals
Gonadotropin-Releasing Hormone - analysis
Male
Melatonin - therapeutic use
Prostatic Neoplasms - drug therapy
Rats
Testosterone - blood
Title Inhibition of Dunning tumor growth by melatonin
URI https://www.ncbi.nlm.nih.gov/pubmed/3283381
Volume 139
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