Loading of L-tryptophan för 7 and 21 days increased brain 5-hydroxytryptamine (5-HT) level which was associated with decreased plasma testosterone level. Human chorionic gonadotropin (HCG) administration in L-tryptophan treated rats för 21 days increased the plasma testosterone level in spite of increased brain 5-HT level. These results suggest that brain 5-HT exerts an inhibitory influence on testicular steroidogenesis by modulating the gonadotropin-releasing-factor (GnRH) release and thence pituitary gonadotropins. © 1985, Informa UK Ltd. All rights reserved.

N M BISWAS

R MAZUMDER

S K BHATTACHARYA

T K DAS

University of Calcutta (informally known as Calcutta University or CU) is a collegiate public state university located in Kolkata, West Bengal, India.&nbsp;Within India it is recognized as a &quot;Five-Star University&quot; and accredited &quot;A&quot; Grade by National Assessment and Accreditation Council.

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The University of Calcutta has secured the Fifth position among the Universities of India in the prestigious &quot;Indian University Ranking 2019&quot; list, released by the NIRF of the Ministry of Human Resource Development, Government of India.

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It was established on 24 January 1857, and was one of the first institutions in Asia to be established as a multidisciplinary and Western-style university. Its alumni and faculty include several heads of state, heads of government, social reformers, prominent artists, only academy award winner and Dirac medal winner in India, many Fellows of the Royal Society and five Nobel laureates as of 2019 which is highest in South Asia.

University Of Calcutta

Brain 5-hydroxytryptamine and plasma testosterone in L-tryptophan treated rats.

Endocrine Research

Archives of Andrology

Blood Serotonin Levels and Male Infertility

Clinical Social Work Journal

News of the societies

Clinical Chemistry

Radioimmunoassay of Plasma Testosterone, with Use of Polyethylene Glycol to Separate Antibody-Bound and Free Hormone

Serotonin and Behavior

BEHAVIORAL AND METABOLIC EFFECTS OF L-TRYPTOPHAN IN UNIPOLAR DEPRESSED PATIENTS

Steroids

Antigenic complexes of steroid hormones formed by coupling to protein through position 7: Preparation from Δ4 -3-oxosteroids and characterization of antibodies to testosterone and androstenedione

Brain 5-hydroxytryptamine and plasma testosterone in l-tryptophan treated rats

Journal	Endocrine Research
Publisher	MARCEL DEKKER INC
ISSN	0743-5800