Cited by 371Ovarian function and disordersReproductive Biology and FertilityAdrenal Hormones and Disorders

Modulation by insulin of follicle-stimulating hormone and luteinizing hormone actions in human granulosa cells of normal and polycystic ovaries.

Willis, D, Mason, H, Gilling-Smith, C, Franks, S·1996·The Journal of Clinical Endocrinology & Metabolism

Abstract

Anovulation in polycystic ovary syndrome (PCOS) is associated with hyperinsulinemia and insulin resistance, but it has been unclear whether the ovary is insulin resistant in women with PCOS. The aims of this study were, firstly, to determine whether human granulosa cells respond to physiological concentrations of insulin and, secondly, to investigate insulin and gonadotropin interactions in vitro in granulosa cells obtained from normal (N) and polycystic ovaries (PCO). Granulosa cells were incubated with insulin with or without gonadotropins for 48 h. Insulin augmented not only basal production of estradiol and progesterone, but also LH-stimulated steroid accumulation in granulosa cell cultures from N and PCO. Insulin enhanced FSH-stimulated progesterone production by granulosa cells from N and PCO, but the effect on FSH-stimulated estradiol production was variable, ranging from no effect for granulosa cells from N to synergistic for granulosa cells from PCO of anovulatory subjects. Preincubation with insulin for 48 h increased subsequent basal and LH-induced, but not FSH-stimulated, steroid production. These data demonstrate that granulosa cells from PCO respond to insulin despite the association, in vivo, of PCOS with peripheral insulin resistance. Insulin preincubation enhances the subsequent response of human granulosa cells to LH. We propose that in anovulatory women with PCOS, elevated levels of insulin interacting with LH may contribute to the mechanism of anovulation.

Integrity signals

Registry

Crossref · 10.1210/jcem.81.1.8550768

Cites

26 of 26 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Insulin resistance associated with PCOS seems to be determined also by alterations at the level of insulin receptor signalling, including increased insulin-independent autophosphorylation associated with reduced receptor activity.

    “As shown by Dunaif et al., IR associated with PCOS, seems to be determined also by alterations at the level of the insulin receptor signalling. They observed that insulin receptors isolated from fibroblast cultured and skeletal muscle of women with PCOS presented increased insulin-independent autophosphorylation which is associated with reduced receptor activity [24, 25] and can lead to IR.”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Willis, D., Mason, H., Gilling-Smith, C., & Franks, S.
Affiliations
St Mary's Hospital (GB)
Venue
The Journal of Clinical Endocrinology & Metabolism
Published
1996-01
Volume
81
Issue
1
Pages
302-309
ISSN
  • 0021-972X (ISSN-L)
  • 1945-7197
OpenAlex
W2171217985
Cited by
371
References
26
Citations by year
2026: 2 · 2025: 9 · 2024: 9 · 2023: 10 · 2022: 10 · 2021: 11 · 2020: 10 · 2019: 10 · 2018: 10 · 2017: 7 · 2016: 12 · 2015: 10 · 2014: 10 · 2013: 16 · 2012: 11
FWCI
14.22
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Clinical Endocrinology & Metabolism (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Ovarian function and disorders
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Reproductive Biology and Fertility
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
Keywords
insulin, polycystic ovary syndrome, granulosa cells, follicle-stimulating hormone, luteinizing hormone, insulin resistance, anovulation, estradiol production, progesterone secretion, steroidogenesis, hyperinsulinemia
MeSH terms
Adult, Estradiol, Female, Follicle Stimulating Hormone, Granulosa Cells, Humans, Insulin, Luteinizing Hormone, Middle Aged, Ovary, Polycystic Ovary Syndrome, Progesterone

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review