scispace - formally typeset
J

John P. Sumpter

Researcher at Brunel University London

Publications -  271
Citations -  48218

John P. Sumpter is an academic researcher from Brunel University London. The author has contributed to research in topics: Vitellogenin & Trout. The author has an hindex of 101, co-authored 266 publications receiving 46184 citations. Previous affiliations of John P. Sumpter include Environment Agency & Centre for Environment, Fisheries and Aquaculture Science.

Papers
More filters
Journal ArticleDOI

Estrogenicity of alkylphenolic compounds: A 3-D structure—activity evaluation of gene activation

TL;DR: Successful structure–activity relationship modeling and prediction of gene activation for 26 of 29 alkylphenols is an additional step in the elucidation of chemical steric and electronic three‐dimensional parameters that predict which xenobiotics are likely to be estrogenic and demonstrates a valuable tool for screening and prioritization of chemicals for further testing.
Journal ArticleDOI

The effects of vertebrate gonadotrophins on androgen release in vitro from testicular cells of Japanese quail and a comparison with their radioimmunoassay activities.

TL;DR: LH is the primary steroidogenic hormone acting on the testicular cells in quail, FSH appearing to play no significant role in the acute release of androgen from the cellular component of the testis, and the results confirm the general specificity of the avian LH and FSH radioimmunoassays.
Journal ArticleDOI

Identification and quantification of 5α-dihydrotestosterone in the teleost fathead minnow (Pimephales promelas) by gas chromatography-tandem mass spectrometry.

TL;DR: The high concentrations of DHT quantified in the testes suggested that these organs are a likely site of synthesis of D HT in the teleost fathead minnow, as they are in mammals.
Journal ArticleDOI

The development and validation of a radioimmunoassay to measure plasma ACTH levels in salmonid fishes.

TL;DR: A radioimmunoassay capable of determining blood ACTH levels in salmonid fishes was developed and validated and heparin as an anticoagulant during collection of samples caused problems when these plasmas were immunoassayed; instead EDTA was found to be a suitable anticoAGulant.