Calcium plus vitamin D supplementation affects glucose metabolism and lipid concentrations in overweight and obese vitamin D deficient women with polycystic ovary syndrome
Assessed by RV019 · Evidence Synthesis Methdos Lead
Assessed on 8 Mar 2026
OverallReviewer's overall integrity assessment, derived from all research questions Serious concerns
DOI 10.1016/j.clnu.2014.09.015 (opens in new tab)
Resource ripekg:research-integrity-assessment/RIPEA22B2228793442254
5 Research Questions · 66 Evidence Items
Q1.1 — Does the study have an associated retraction?
Rationale: No rationale provided
Q1.2 — Does the study have an associated expression of concern or other relevant post-publication notice?
Rationale: No rationale provided
Supporting Evidence (2)
PubPeer ThreadSource: PubPeer.com — post-publication peer review comments
https://pubpeer.com/publications/925CE537207BD1E90FE94ACEEF71F0 (opens in new tab)PubPeer CommentSource: PubPeer.com — a platform for post-publication peer review
There are many concerns about the integrity of 172 publications by this research group, including this one. Some of the concerns are published 1. Anaesthesia 2020;75:1683–92, see Supplementary data. This paper is A28 2. Account Res 2020;28:149-61. 3. J Clin Epidemiol 2021;131:22-29. Journals and publishers were notified of these concerns in July 2019. 23 publications have an expression of concern. To our knowledge there has been no public response about any of the concerns. We think these publications are unreliable
Thread: https://pubpeer.com/publications/925CE537207BD1E90FE94ACEEF71F0 (opens in new tab)
PubPeer CommentSource: PubPeer.com — a platform for post-publication peer review
A quick view shows inconsistencies as you can't loose probands to follow-up and report a change from baseline. [Image: file illustrating possible data inconsistencies] Is anybody willing to look at the distribution of the last numbers?
Thread: https://pubpeer.com/publications/925CE537207BD1E90FE94ACEEF71F0 (opens in new tab)
Q1.3 — Do other studies by the research team highlight causes for concern?
Rationale: No rationale provided
Supporting Evidence (62)
Retraction NoticeSource: Retraction Watch database
The Effect of Zinc Supplementation on Expressed Levels of Peroxisome Proliferator-Activated Receptor Gamma and Glucose Transporter Type 1 Genes in Newborns of Women with Gestational Diabetes Mellitus
10.1007/s12011-016-0788-y (opens in new tab)RetractionWatch ID:Record identifier in the Retraction Watch database 28454
Rationale: Concerns/Issues About Data;Investigation by Company/Institution;Updated to Retraction
About Authors: Mehri Jamilian, Mansooreh Samimi, Esmat Aghadavod
Retraction NoticeSource: Retraction Watch database
Effects of Selenium Supplementation on Gene Expression Levels of Inflammatory Cytokines and Vascular Endothelial Growth Factor in Patients with Gestational Diabetes
10.1007/s12011-017-1045-8 (opens in new tab)RetractionWatch ID:Record identifier in the Retraction Watch database 28465
Rationale: Concerns/Issues About Data;Investigation by Company/Institution
About Authors: Mehri Jamilian, Mansooreh Samimi, Esmat Aghadavod, Faraneh Afshar Ebrahimi
Retraction NoticeSource: Retraction Watch database
The Effect of Zinc Supplementation on Expressed Levels of Peroxisome Proliferator-Activated Receptor Gamma and Glucose Transporter Type 1 Genes in Newborns of Women with Gestational Diabetes Mellitus
10.1007/s12011-022-03501-2 (opens in new tab)RetractionWatch ID:Record identifier in the Retraction Watch database 40895
Rationale: Concerns/Issues About Data;Concerns/Issues About Image;Concerns/Issues about Referencing/Attributions;Duplication of/in Article;Investigation by Company/Institution;Unreliable Results and/or Conclusions;Upgrade/Update of Prior Notice(s)
About Authors: Mehri Jamilian, Mansooreh Samimi, Esmat Aghadavod
Q2.2 — Are there concerns relating to the timing or absence of study registration?
Rationale: No rationale provided
Supporting Evidence (2)
Clinical Trial RegistrationSource: Clinical trial registry (e.g. ClinicalTrials.gov, ISRCTN)
Registration ID: IRCT201309275623N10
Registry: IRCT
Registry Link: https://trialsearch.who.int/Trial2.aspx?TrialID=IRCT201309275623N10 (opens in new tab)
Registration Date: 7 Oct 2013
Prospective:Whether the trial was registered before participant recruitment began No
Assessment Rationale:How INSPECT-AI determined the prospective registration status by comparing dates Comparison performed at month level. Registration: 2013-10, LLM Recruitment Start: 2013-09. Deemed retrospective at month level.
Study Design EvidenceDates and timelines extracted by INSPECT-AI from the publication text
Recruitment Start: 09-2013
Recruitment Start Rationale:INSPECT-AI's reasoning for how it identified the recruitment start date Methods: 'This randomized double-blind placebo controlled clinical trial was performed in Kashan, Iran, during September 2013 to December 2013.'
Recruitment End: 12-2013
Recruitment End Rationale:INSPECT-AI's reasoning for how it identified the recruitment end date Methods: 'This randomized double-blind placebo controlled clinical trial was performed in Kashan, Iran, during September 2013 to December 2013.'
Study End: N/A
Study End Rationale:INSPECT-AI's reasoning for how it identified the study end date No explicit study completion date found.
Overall — What is the overall integrity assessment of the study?
Rationale: No rationale provided