Evidence map›Paper›PMID 28347315›Full record

SynthesisReproductive biology and endocrinology : RB&E2017

5α-reductase activity in women with polycystic ovary syndrome: a systematic review and meta-analysis.

Chuyan Wu, Ke Wei, Zhongli Jiang

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Reproductive biology and endocrinology : RB&E, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 10% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
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  6. Review
  7. Article
  8. Review
  9. Journal of the Endocrine Society · 2023
    Article
  10. Androgen signalling in the ovaries and endometrium.Molecular human reproduction · 2023
    Review
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
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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

3 authors at 2 institutions in 1 country.

Chuyan WuDepartment of Rehabilitation Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
Ke WeiMedical Service Section, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
Zhongli JiangDepartment of Rehabilitation Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China. jiangzh3721@163.com.
Nanjing Medical University · CNJiangsu Province Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background5α-reductase activity might be important during the development of polycystic ovary syndrome (PCOS). However, the changes of 5α-reductase activity in PCOS subjects and the relationship between 5α-reductase activity and body mass index (BMI), insulin resistance (IR) remain largely unknown.

methodsWe performed a meta-analysis to examine 5α-reductase activity in women with PCOS; exploratory subgroup analyses were also performed.

resultsFive articles (with 356 cases and 236 controls) reporting 5α-reductase activity in patients with PCOS were selected for the meta-analysis. We observed significantly higher ratios of 5αTHF/THF (5α-reduced tetrahydrocortisol to 5β-reduced tetrahydrocortisol) and An/Et (androsteroneto/etiocholanolone) levels, which were used to assess 5α-reductase activity, among the patients with PCOS, [standardized mean differences (SMD) =0.43, 95%confidence intervals (95%CI) =0.25-0.61, P < 0.00001; SMD = 0.86, 95% CI = 0.29-1.44, P = 0.003]. We observed significant heterogeneity between studies for An/Et (I

conclusions5α-reductase activity was enhanced in women with PCOS. Increased 5α-reductase activity in patients with PCOS was related to IR.

Indexed as

Body Mass IndexInsulin Resistance3-Oxo-5-alpha-Steroid 4-DehydrogenaseCholestenone 5 alpha-ReductaseFemaleHumansMembrane ProteinsObesityPolycystic Ovary Syndrome3-Oxo-5-alpha-Steroid 4-DehydrogenaseCholestenone 5 alpha-ReductaseMembrane ProteinsSRD5A1 protein, humanSRD5A2 protein, human5α-ReductaseBody mass indexInsulin resistancePolycystic ovary syndrome

Identifiers

PMID28347315
PMCPMC5369013
OpenAlexW2597553615

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

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 Socratic graph.