Evidence map›Paper›PMID 41924225›Full record

ArticleInternational journal of preventive medicine2026

The Effect of Curcumin Plus Piperine on Mental Health Status, Sleep Quality, and Anthropometric Indices in Patients with Non-Proliferative Diabetic Retinopathy: A Randomized Double-Blind Placebo-Controlled Trial.

Sepide Amini, Alireza Dehghani, Amirhossein Sahebkar, Bijan Iraj, Abdolreza Rezaeian-Ramsheh, Gholamreza Askari, Muhammed Majeed, Mohammad Bagherniya

Abstract read
In one paragraph

Article in International journal of preventive medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. Review
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

8 authors.

Sepide AminiStudent Research Committee, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.
Alireza DehghaniDepartment of Ophthalmology, Isfahan Eye Research Center, Isfahan University of Medical Science, Isfahan, Iran.
Amirhossein SahebkarApplied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
Bijan IrajIsfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
Abdolreza Rezaeian-RamshehDepartment of Ophthalmology, Isfahan Eye Research Center, Isfahan University of Medical Science, Isfahan, Iran.
Gholamreza AskariFood Security Research Center and Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.
Muhammed MajeedSabinsa Corporation, East Windsor, New Jersey, United States.
Mohammad BagherniyaFood Security Research Center and Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.ORCID https://orcid.org/0000-0002-5861-6129

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Diabetic retinopathy (DR) is a significant complication of diabetes that can adversely affect the quality of life and anthropometric indices of individuals. This study aimed to investigate the impact of a combination of curcumin and piperine on mental health status (stress, anxiety, and depression), sleep quality, and anthropometric indices in patients with non-proliferative diabetic retinopathy. Methods: This was a 12-week randomized, placebo-controlled, double-blind, parallel-arm clinical trial. A total of 60 patients with DR, aged 30-65 years, were randomly assigned to two groups. The intervention group received 1010 mg/day of curcumin-piperine (2 tablets/day, each containing 500 mg curcumin and 5 mg piperine) ( Results: Twenty-seven patients in the intervention group and 29 patients in the placebo group completed the trial. However, using the intention-to-treat (ITT) method, the analysis was conducted on 60 patients. The curcumin-piperine combination demonstrated significant improvements in sleep quality (-0.91 ± 1.28 vs. -0.34 ± 0.95; Conclusions: The combination of curcumin and piperine appears to be effective in enhancing mental health status, sleep quality, and anthropometric factors in patients with DR. Further clinical trials are necessary to validate these promising findings. Clinical Trial Registration Number: IRCT, IRCT20201129049534N5. Registered 11 September 2021, https://en.irct.ir/trial/56564.

Indexed as

BMIcurcumindiabetes mellitusdiabetic retinopathypiperinesleep quality

Identifiers

PMID41924225
PMCPMC13038278

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Registered trials

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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.