Methyl jasmonate induces oxidative/nitrosative stress and the accumulation of antioxidant metabolites in Phoenix dactylifera L.

Objectives: The present study aimed to explore the eliciting effects of increasing concentrations (50, 100, and 200 µM) of methyl jasmonate (MeJA). We cultivated actively proliferating buds of Phoenix dactylifera L. cv.

Influence of the sulfate content of the exopolysaccharides from Porphyridium sordidum on their elicitor activities on date palm vitroplants.

Given the increasing interest that is being paid to polysaccharides derived from algae as plant natural defense stimulators, the degree of sulfation of exopolysaccharides produced by P. sordidum for inducing defense responses in date palm vitroplants was investigated. Firstly, the culture parameters of P.

Grape Extract Promoted α-MSH-Induced Melanogenesis in B16F10 Melanoma Cells, Which Was Inverse to Resveratrol.

Melanin is a natural pigment produced by cells to prevent damage caused by ultraviolet radiation. Previously, resveratrol was shown to reduce melanin synthesis. As a natural polyphenol with various biological activities, resveratrol occurs in a variety of beverages and plant foods, such as grapes.

Sakuranetin Induces Melanogenesis in B16BL6 Melanoma Cells through Inhibition of ERK and PI3K/AKT Signaling Pathways.

Sakuranetin (Sak) is considered one of the most important flavanone phytoalexins in regard to antimicrobial activity, and accumulation, in the rice plant. The current study determined that Sak strongly stimulates melanogenesis in B16BL6 melanoma cells in a dose-dependent manner. This flavonoid upregulates the expression of microphthalmia transcription factor (MITF) and reaches its maximum after 24 h.

Isosakuranetin, a 4'-O-methylated flavonoid, stimulates melanogenesis in B16BL6 murine melanoma cells.

Aims: The beneficial effects of 4'-O-methylated flavonoids on induction of melanogenesis are well established. Here, we report the effect of isosakuranetin (Iso) on melanogenesis in B16BL6 melanoma cells and an analysis of the signaling pathways involved in this activity.

Methods: B16BL6 melanoma cells were treated with several concentrations of Iso and melanin content was measured.

Ice Plant (Mesembryanthemum crystallinum) Extract Promotes Lipolysis in Mouse 3T3-L1 Adipocytes Through Extracellular Signal-Regulated Kinase Activation.

The antiobesity effect of ice plant (IP) (Mesembryanthemum crystallinum), a salt-resistant African plant, has recently attracted increased attention. IP is rich in pinitol, which lowers blood sugar, and myo-inositol, which prevents fatty liver disease. Furthermore, IP can potentially prevent or reduce the symptoms of metabolic syndrome.

Modulation of adipogenesis, lipolysis and glucose consumption in 3T3-L1 adipocytes and C2C12 myotubes by hydroxytyrosol acetate: a comparative study.

Hydroxytyrosol acetate (Hd-Ac) is a polyphenol that is present in the olive fruit and oil at a concentration similar to that of hydroxytyrosol (Hd). The effects of Hd-Ac on adipogenesis, lipolysis, and glucose consumption in 3T3-L1 cells were investigated. Treatment with Hd-Ac at concentrations of 0-75 μmol/L inhibited 3T3-L1 differentiation and lipid accumulation in a dose-dependent manner.

Hydroxytyrosol stimulates lipolysis via A-kinase and extracellular signal-regulated kinase activation in 3T3-L1 adipocytes.

Purpose: The principal function of the adipose tissue is the storage of energy in the form of triglyceride through the process of adipogenesis, as well as the provision of the stored energy through lipolysis. In the present study, we investigated the effect of hydroxytyrosol on lipolysis in 3T3-L1 adipocytes.

Methods: 3T3-L1 adipocytes, used as in vitro model in this study, were treated with several concentration of hydroxytyrosol.

Oleuropein and hydroxytyrosol inhibit adipocyte differentiation in 3 T3-L1 cells.

Aims: Oleuropein and hydroxytyrosol, which are antioxidant molecules found in olive leaves and oil, have been reported to exert several biochemical and pharmacological effects. These polyphenols are able to prevent low-density lipoprotein oxidation and protect cells against several diseases. Here, we studied the effect of these compounds on adipocyte differentiation in 3 T3-L1.