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Curcumin inhibits adipogenesis [fat formation] in 3T3-L1 adipocytes and angiogenesis and obesity in C57/BL mice - Source: The Journal of Nutrition, May 2009

  [ 41 votes ]   [ 2 Comments ]
By Asma Ejaz, Mohsen Meydani, et al. • www.ProHealth.com • May 12, 2009


Angiogenesis [new blood vessel growth] is necessary for the growth of adipose [fat] tissue. Dietary polyphenols may suppress growth of adipose tissue through their antiangiogenic activity and by modulating adipocyte [fat cell] metabolism.

We investigated the effect of curcumin, the major polyphenol in turmeric spice, on angiogenesis, adipogenesis, differentiation, apoptosis [programmed cell death], and gene expression involved in lipid and energy metabolism in 3T3-L1 adipocyte in cell culture systems and on body weight gain and adiposity in mice fed a high-fat diet (22%) supplemented with 500 mg curcumin/kg diet for 12 wk.

• Curcumin (5-20 micromol/L) suppressed 3T3-L1 differentiation, caused apoptosis, and inhibited adipokine-induced angiogenesis of human umbilical vein endothelial cells.

• Supplementing the high-fat diet of mice with curcumin did not affect food intake but reduced body weight gain, adiposity, and microvessel density in adipose tissue, which coincided with reduced expression of vascular endothelial growth factor (VEGF) and its receptor VEGFR-2.

• Curcumin increased 5'AMP-activated protein kinase phosphorylation, reduced glycerol-3-phosphate acyl transferase-1, and increased carnitine palmitoyltransferase-1 expression, which led to increased oxidation and decreased fatty acid esterification.

• The in vivo effect of curcumin on the expression of these enzymes was also confirmed by real-time RT-PCR in subcutaneous adipose tissue.

• In addition, curcumin significantly lowered serum cholesterol and expression of PPARgamma and CCAAT/enhancer binding protein alpha, 2 key transcription factors in adipogenesis and lipogenesis.

The curcumin suppression of angiogenesis in adipose tissue together with its effect on lipid metabolism in adipocytes may contribute to lower body fat and body weight gain. Our findings suggest that dietary curcumin may have a potential benefit in preventing obesity.

Source: The Journal of Nutrition, May 2009;139(5):919-25. PMID: 19297423, by Ejaz A, Wu D, Kwan P, Meydani M. Vascular Biology Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University; Department of Pathology, Tufts University School of Medicine, Boston, Massachusetts, USA. [E-mail: mohsen.meydani@tufts.edu]





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Article Comments Post a Comment

could someone in laymens terms tell me what this article means??
Posted by: hensue
May 20, 2009
I realize it says it could possibly control obesity but I really could not grasp why? What is dietary curcumin. Thanks
Reply Reply

Curcumin
Posted by: Caha
May 21, 2009
I agree with the previous review, is curcumin available as a supplement, or what? This article is of no value to me unless I can answer the question, "Should I start using more Turmeric spice in my foods to help reduce weight, or not?" The article produced more questions than answers.
Reply Reply
 
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