Search

The paper deals with the oscillation analysis of numerical solution in the ?-methods for differential equations with piecewise constant arguments of advanced type. The conditions of the oscillation for the ?-method are obtained. It is proved that the oscillation of the analytic solution is preserved by the ?- method. Some numerical experiments are given. [ABSTRACT FROM AUTHOR]

In this study, methionine sulfoxide (MetO) was identified as an active metabolite that suppresses adipogenesis after screening obese individuals versus the normal population. MetO suppressed the gene and protein expression of CCAAT/enhancer binding protein (C/EBP) α, adipocyte fatty acid binding protein 4 (FABP4), and the nuclear receptor peroxisome proliferator‐activated receptor γ (PPARγ) during human preadipocyte (HPA) differentiation. Adipogenesis decreased following MetO treatment; however, the preadipocyte number, proliferation, and apoptosis were unaffected. The activity of phosphorylated extracellular signal‐related kinase (P‐ERK) of the mitogen‐activated protein kinase (MAPK) pathway was significantly inhibited in HPA after MetO treatment. Furthermore, treatment of preadipocytes with the selective P‐ERK1/2 agonist Ro 67‐7476 abolished the effect of MetO against adipogenesis suggesting that MetO function is dependent on the MAPK pathway. The mechanistic insights of adipogenesis suppression by MetO presented in this study shows its potential as an antiobesity drug. [ABSTRACT FROM AUTHOR]