Evidence map›Paper›PMID 34774052›Full record

Trial reportNutrition journal2021

Curcuma longa extract improves serum inflammatory markers and mental health in healthy participants who are overweight: a randomized, double-blind, placebo-controlled trial.

Ryusei Uchio, Kengo Kawasaki, Chinatsu Okuda-Hanafusa, Ryosuke Saji, Koutarou Muroyama, Shinji Murosaki, Yoshihiro Yamamoto, Yoshitaka Hirose

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Nutrition journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

15 citing papers in PubMed, 28 citations in OpenAlex.

  1. Effects ofFrontiers in nutrition · 2026
    Trial
  2. A Hot Water Extract ofNutrients · 2022
    Trial
  3. Review
  4. Review
  5. Review
  6. Article
  7. Review
  8. Review
  9. Frontiers in nutrition · 2024
    Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Turmeronols (A and B) fromBioscience of microbiota, food and health · 2023
    Article
  15. 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 at 1 institution in 1 country.

Ryusei UchioResearch & Development Institute, House Wellness Foods Corp., 3-20 Imoji, Itami, Hyogo, 664-0011, Japan. uchio_ryusei@house-wf.co.jp.ORCID 0000-0001-5924-4534
Kengo KawasakiResearch & Development Institute, House Wellness Foods Corp., 3-20 Imoji, Itami, Hyogo, 664-0011, Japan.
Chinatsu Okuda-HanafusaResearch & Development Institute, House Wellness Foods Corp., 3-20 Imoji, Itami, Hyogo, 664-0011, Japan.
Ryosuke SajiResearch & Development Institute, House Wellness Foods Corp., 3-20 Imoji, Itami, Hyogo, 664-0011, Japan.
Koutarou MuroyamaResearch & Development Institute, House Wellness Foods Corp., 3-20 Imoji, Itami, Hyogo, 664-0011, Japan.
Shinji MurosakiResearch & Development Institute, House Wellness Foods Corp., 3-20 Imoji, Itami, Hyogo, 664-0011, Japan.
Yoshihiro YamamotoResearch & Development Institute, House Wellness Foods Corp., 3-20 Imoji, Itami, Hyogo, 664-0011, Japan.
Yoshitaka HiroseResearch & Development Institute, House Wellness Foods Corp., 3-20 Imoji, Itami, Hyogo, 664-0011, Japan.
Research & Development Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe dietary spice Curcuma longa, also known as turmeric, has various biological effects. Both a water extract and a supercritical carbon dioxide extract of C. longa showed anti-inflammatory activities in animal studies. However, the anti-inflammatory effect in humans of a mixture of these two C. longa extracts (CLE) is poorly understood. Therefore, we investigated the effect of CLE containing anti-inflammatory turmeronols on chronic inflammation and general health.

methodsWe performed a randomized, double-blind, placebo-controlled study in healthy subjects aged 50 to 69 years with overweight. Participants took two capsules containing CLE (CLE group, n = 45) or two placebo capsules (placebo group, n = 45) daily for 12 weeks, and serum inflammatory markers were measured. Participants also completed two questionnaires: the Medical Outcomes Study (MOS) 36-Item Short-Form Health Survey (SF-36) and the Profile of Mood States (POMS) scale. Treatment effects were analyzed by two way analysis of variance followed by a t test (significance level, p <  0.05).

resultsAfter the intervention, the CLE group had a significantly lower body weight (p <  0.05) and body mass index (p < 0.05) than the placebo group and significantly lower serum levels of C-reactive protein (p < 0.05) and complement component 3 (p < 0.05). In addition, the CLE group showed significant improvement of the MOS SF-36 mental health score (p < 0.05) and POMS anger-hostility score (p < 0.05).

conclusionCLE may ameliorate chronic low-grade inflammation and thus help to improve mental health and mood disturbance.

trial registrationUMIN-CTR, UMIN000037370. Registered 14 July 2019, https://upload.umin.ac.jp/cgi-open-bin/ctr/ctr_view.cgi?recptno=R000042607.

Indexed as

CurcumaMental HealthHealthy VolunteersHumansOverweightPlant ExtractsPlant Extractsturmeric extract36-item short-form health survey (SF-36)BisacuroneBody mass index (BMI)Chronic inflammationComplement component 3 (C3)C-reactive protein (CRP)Profile of mood states (POMS)Turmeric (Curcuma longa)Turmeronol

Identifiers

PMID34774052
PMCPMC8590273
OpenAlexW3214417687

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.