Review Article

Impact of Phytochemicals on PPAR Receptors: Implications for Disease Treatments

Table 2

Summary of clinical studies of phytochemicals on the PPAR family in diseases.

PhytochemicalsDiseaseDose/route of administrationAssayProtective effectMechanismRef.

Nano-curcuminDiabetes on hemodialysis (HD)80 mg/day, capsule, 12 weeks (RCT)Gene expressions in PBMCs, blood sampleAntioxidant, antidiabetic, anti-inflammatory(+) PPARγ mRNA, LDLR mRNA, HDL-cholesterol, TAC, total nitrite level
(-) FPG, insulin level, TC, TG, VLDL-cholesterol, LDL-cholesterol, total-/HDL-cholesterol ratio, hs-CRP, MDA
[201]
CurcuminPolycystic ovary syndrome500 mg/day, supplementary, 12 weeks (RCT)Fasting blood sample, insulin and lipid metabolism gene expressionsAntiobesity, antidiabetic, lipid lowering(+) PPARγ mRNA, LDLR mRNA, HDL cholesterol
(-) FPG, insulin level, HOMA-IR, TC, LDL-cholesterol, total-/HDL-cholesterol ratio
[202]
Resveratrol + curcuminPostprandial inflammation response in high-fat meal100/50 mg (Res/Cur), 2 capsule, 30 min before consuming the high-fat meal (RCT)Blood sample, inflammatory markers, adhesion molecules, NFκB1, and PPARαNo impact on the postprandial inflammation response, have only small effects on endothelial function(+) –
(-) sVCAM-1 iAUC
: PPARαand NFκB1 not changed
[203]
ResveratrolType 2 diabetes mellitus and coronary heart disease500 mg/day, capsule, 4 weeks (RCT)Fasting blood sample, lipid, inflammation and oxidative markers, related gene expressionAntidiabetic, antioxidant, regulated dyslipidemia
Not effect on inflammatory markers
(+) PPARγ, SIRT1, QUICKI, HDL-C, TAC
(-) FPG,insulin, HOMA-IR, TC/HDL, MDA
[276]
NaringeninDiabetes150 mg, capsule, 3times/day, 8 weeks (a case)Blood sample, respiratory quotient, insulin and metabolic markersReduced body weight and insulin resistance, increased metabolic rate(+) PPARα,PPARγ, serum glucose,UCP1, CPT1β
(-) HOMA-IR, LDL-C
[204]
Epigallocatechin gallateObesity150 mg, capsule, twice/day, 8 weeks (RCT)Blood sample (enzyme and hormone assay), gene expression in adipocytesDecreased blood pressure, no effects on obesity, lipolysis and browning of human white adipocytes(+) -
(-) TG,serum kisspeptin
not effect on PPARγ and UCP1 expressions
[205]

(+): Increasing or activation of target. (-): Decreasing or inhibition of target.