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Abstract Title:

Curcumin extract for prevention of type 2 diabetes.

Abstract Source:

Diabetes Care. 2012 Nov ;35(11):2121-7. Epub 2012 Jul 6. PMID: 22773702

Abstract Author(s):

Somlak Chuengsamarn, Suthee Rattanamongkolgul, Rataya Luechapudiporn, Chada Phisalaphong, Siwanon Jirawatnotai

Article Affiliation:

Division of Endocrinology and Metabolism, Faculty of Medicine, HRH Princess Maha Chakri Sirindhorn Medical Center, Srinakharinwirot University, Nakornnayok, Thailand. somlukc@hotmail.com

Abstract:

OBJECTIVE: To assess the efficacy of curcumin in delaying development of type 2 diabetes mellitus (T2DM) in the prediabetic 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 inβ-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 ofβ-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 in a prediabetic population significantly lowered the number of prediabetic individuals who eventually developed T2DM. In addition, the curcumin treatment appeared to improve overall function ofβ-cells, with very minor adverse effects. Therefore, this study demonstrated that the curcumin intervention in a prediabetic population may be beneficial.

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