Evidence map›Paper›PMID 29371816›Full record

ReviewReproductive medicine and biology2018

Expression of the gonadotropin receptors during follicular development.

Hiroshi Kishi, Yoshikazu Kitahara, Fumiharu Imai, Kohshiro Nakao, Hiroto Suwa

Open access · goldAbstract readReview
In one paragraph

Review in Reproductive medicine and biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 68 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Hiroshi KishiDepartment of Obstetrics and Gynecology Gunma University Hospital Gunma Japan.ORCID 0000-0003-1562-410X
Yoshikazu KitaharaDepartment of Obstetrics and Gynecology Gunma University Hospital Gunma Japan.
Fumiharu ImaiDepartment of Obstetrics and Gynecology Gunma University Hospital Gunma Japan.
Kohshiro NakaoDepartment of Obstetrics and Gynecology Gunma University Hospital Gunma Japan.
Hiroto SuwaDepartment of Obstetrics and Gynecology Gunma University Hospital Gunma Japan.
Gunma University Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Gonadotropins induce follicular development that leads to ovulation and luteinization. In women, the level of gonadotropins, along with the expression of their receptors, changes dynamically throughout the menstrual cycle. This study aimed to clarify the mechanisms underlying these phenomena. Methods: The literature was reviewed, including that published by the authors. Main findings Results: Follicle-stimulating hormone receptor expression in the granulosa cells was induced by androgens that were derived from growth differentiation factor-9-stimulated theca cells. In the theca cells, luteinizing hormone receptor (LHR) expression was noted from their appearance. In the granulosa cells, follicle-stimulating hormone (FSH) stimulation was essential for LHR expression. However, FSH alone was not sufficient to respond to the luteinizing hormone (LH) surge for oocyte maturation, ovulation, and subsequent luteinization. To achieve these stages, various local factors that were derived from the granulosa and theca cells in response to FSH and LH stimulation had to work synergistically in an autocrine/paracrine manner to strongly induce LHR expression. Following the LH surge, the LHR expression decreased markedly; miRNAs were involved in this transient LHR downregulation. Following ovulation, LHR expression drastically increased again toward luteinization. Conclusion: The expression of gonadotropin receptors is controlled by sophisticated and complicated systems; a breakdown of this system could lead to ovulation disorders.

Indexed as

follicle‐stimulating hormone receptorgranulosa cellsluteinizing hormone receptorreceptor downregulationtheca cells

Identifiers

PMID29371816
PMCPMC5768975
OpenAlexW2771415292

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.