NUTRIGENOMIC STUDY: Igf-1 INHIBITION IN ADIPOGENESIS OF VISCERAL ADIPOSE TISSUE OF RAT USING RAMBUTAN PEEL EXTRACT

Abstract: This  study  observes  the  inhibition  of  rambutan  peel extract to  rat visceral adipose tissue adipogenesis by observing the expression  of  igf-1.  Experiment  stages  consist  of  rambutan  peel extraction, rat treatment, visceral adipose tissue protein isolation and separation,  and  western  blot.  Male  wistar  rats  were  divided  into normal and obese rats. The treatments consist of control, ellagic acid, placebo,  and  extract  at  5,  10,  15,  and  20  mg/kg  body  weight. Decreasing body weight gain observed in obese rats with similar food intake  (P>0,05).  Effective  dose  observed  at  10mg/kg,  whilst  at  20 mg/kg  showed  increasing  body  weight.  Protein  profile  shows different band numbers and intensity between groups and treatments. Igf-1 expression is bound to Igfbp-1 at 36,7 kDa. Anti-obesity effect observed  at  10  mg/kg  extract  in  obese  rats.  Interestingly,  igf-1 expression is lower at 20mg/kg group. This result suggest that obesity inhibition does not go through IR family tyrosin kinase.
Index Terms: Adipogenesis, rambutan peel extract, Igf-1, obesity
Author: Rizky Nurdiansyah, Sri Rahayu Lestari and Fatchiyah
Journal Code: jpbiologigg130006

Artikel Terkait :