http://care.diabetesjournals.org/conten ... 6.abstractCurcumin Extract for Prevention of Type 2 Diabetes
Somlak Chuengsamarn, MD1,2⇓,
Suthee Rattanamongkolgul, MD3,
Rataya Luechapudiporn, PHD4,
Chada Phisalaphong, PHD5 and
Siwanon Jirawatnotai, PHD6,7
+ Author Affiliations
1Division of Endocrinology and Metabolism, Faculty of Medicine, HRH Princess Maha Chakri Sirindhorn Medical Center, Srinakharinwirot University, Nakornnayok, Thailand
2Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s Hospital, Boston, Massachusetts
3Department of Preventive and Social Medicine, Faculty of Medicine, HRH Princess Maha Chakri Sirindhorn Medical Center, Srinakharinwirot University, Nakornnayok, Thailand
4Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
5Research and Development Institute, Thai Government Pharmaceutical Organization, Bangkok, Thailand
6Institute of Molecular Biosciences, Mahidol University, Salaya, Nakhon pratom, Thailand
7Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts
Corresponding author: Somlak Chuengsamarn, firstname.lastname@example.org.
OBJECTIVE To assess the efficacy of curcumin in delaying development of type 2 diabetes mellitus (T2DM) in the prediabetes population.
RESEARCH DESIGN AND METHODS This randomized, double-blinded, placebo- controlled trial included subjects (n = 240) with criteria of prediabetes. All subjects were randomly assigned to receive either curcumin or placebo capsules for 9 months. To assess the T2DM progression after curcumin treatments and to determine the number of subjects progressing to T2DM, changes in β-cell functions (homeostasis model assessment [HOMA]-β, C-peptide, and proinsulin/insulin), insulin resistance (HOMA-IR), anti-inflammatory cytokine (adiponectin), and other parameters were monitored at the baseline and at 3-, 6-, and 9-month visits during the course of intervention.
RESULTS After 9 months of treatment, 16.4% of subjects in the placebo group were diagnosed with T2DM, whereas none were diagnosed with T2DM in the curcumin-treated group. In addition, the curcumin-treated group showed a better overall function of β-cells, with higher HOMA-β (61.58 vs. 48.72; P < 0.01) and lower C-peptide (1.7 vs. 2.17; P < 0.05). The curcumin-treated group showed a lower level of HOMA-IR (3.22 vs. 4.04; P < 0.001) and higher adiponectin (22.46 vs. 18.45; P < 0.05) when compared with the placebo group.
CONCLUSIONS A 9-month curcumin intervention of a prediabetes population significantly lowered the number of prediabetic individuals who eventually developed T2DM. In addition, the curcumin treatment appeared to improve overall function of β-cells, with very minor adverse effects. Therefore, this study demonstrated that the curcumin intervention in a prediabetes population may be beneficial.
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