Evidence map›Paper›PMID 31477085›Full record

ArticleBMC endocrine disorders2019

Does a restricted energy low glycemic index diet have a different effect on overweight women with or without polycystic ovary syndrome?

Farnaz Shishehgar, Parvin Mirmiran, Maryam Rahmati, Maryam Tohidi, Fahimeh Ramezani Tehrani

Open access · goldAbstract read
In one paragraph

Article in BMC endocrine disorders, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
6.1field-weighted citation impact, top 4% 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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it, 54 citations in OpenAlex.

  1. Pooled it
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  8. Reduction in the Free Androgen Index in Overweight Women After Sixty Days of a Low Glycemic Diet.Experimental and clinical endocrinology & diabetes : official journal, German Society of Endocrinology [and] German Diabetes Association · 2024
    Article
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  13. Introduction to the dietary management of obesity in adults.Clinical medicine (London, England) · 2023
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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 3 institutions in 1 country.

Farnaz ShishehgarDepartment of Midwifery, Faculty of Nursing and Midwifery, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
Parvin MirmiranNutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Maryam RahmatiSchool of Public Health, Department of Epidemiology and Biostatistics, Tehran University of Medical Sciences, Tehran, Iran.
Maryam TohidiPrevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Fahimeh Ramezani TehraniReproductive Endocrinology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, No 24, Parvane Street, Yaman Street, Velenjak, Tehran, Iran. ramezani@endocrine.ac.ir.
Research Institute for Endocrine Sciences · IRIslamic Azad University Medical Branch of Tehran · IRTehran University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundObese women with polycystic ovary syndrome (PCOS) may face additional barriers in achieving weight loss. We aimed to compare the effects of the hypocaloric low glycemic index (LGI) diet on anthropometric variables and insulin resistance in women with and without PCOS and investigate the effect of this diet on the clinical and hormonal features of PCOS women.

methodsThis interventional study was carried out at the Reproductive Endocrinology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Of 108 women invited for the purpose of the present study, 62 participants (PCOS = 28, non-PCOS = 34) followed a 24-week energy restricted LGI diet. Anthropometric, biochemical, hormonal and clinical measurements were documented at baseline, 12 weeks and 24 weeks with intervention.

resultsThe percentages of weight loss achieved by both the PCOS and non-PCOS groups did not differ significantly (PCOS: -8.04% vs. non-PCOS: -8.09%). No significant difference in decrease of homeostatic model assessment of insulin resistance (HOMA-IR) was observed between the two groups (PCOS = - 0.83 ± 0.33, non PCOS = - 0.79 ± 0.28, P = 0.83). In PCOS women, significant reduction in total testosterone (- 0.91 ± 0.33 nmol/L, P = 0.006), FAI (- 4.47 ± 1.1, P < 0.001) and increase in SHBG (38.98 ± 11.02 nmol/L, P < 0.001) were observed. Menstrual irregularity was improved in 80% of women with PCOS and a significant decrease (32.1%) in occurrence of acne was reported.

conclusionsThis diet has equally beneficial effects on anthropometric and metabolic characteristics of overweight women with and without PCOS.

trial registrationThis study is registered in the Iranian Randomized Clinical Trials Registry (IRCT, code: IRCT2016092129909N1 ).

Indexed as

Glycemic IndexAdolescentAdultBody Mass IndexCaloric RestrictionCase-Control StudiesDiet, ReducingFemaleFollow-Up StudiesHumansInsulin ResistanceObesityOverweightPolycystic Ovary SyndromePrognosisWeight LossDietObesityPolycystic ovary syndrome (PCOS)

Identifiers

PMID31477085
PMCPMC6720418
OpenAlexW2971934744

What OpenQuestion 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 OpenQuestion graph.