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To explore the effect of resveratrol in premature senescence and reveal its anti-premature senescence mechanisms through network pharmacology. In this study, the H2O2-induced bone marrow mesenchymal stem cells (BMMSCs) premature senescence model is applied. Cell counting kit-8 assay, β-galactosidase staining and flow cytometry are conducted to detect the proliferation, senescence and apoptosis of BMMSCs. Bioinformatics analyses are used to screen and validate molecular targets of resveratrol acting on premature senescence. Dual-luciferase reporter assay is conducted to verify the interaction between v-rel avian reticuloendotheliosis viral oncogene homolog A (RELA) and sirtuin 1 (SIRT1). RT-qPCR and western blot are adopted to detect mRNA and protein levels of RELA, SIRT1, senescence-related genes and apoptosis-related genes. First, we proved that resveratrol alleviated the H2O2-induced senescence of BMMSCs. Then, bioinformatics analysis revealed that RELA was the downstream target of resveratrol and SIRT1 was the downstream target of RELA, respectively, involved in premature aging. RELA/SIRT1 may be the potential target of resveratrol for premature senescence. Notably, rescue experiments indicated that resveratrol inhibited premature senescence partially through targeting regulation RELA/SIRT1. In our study, we confirm the functional role of the resveratrol-RELA- SIRT1 axis in the progression of premature senescence, which provides a latent target for premature senescence treatment. [ABSTRACT FROM AUTHOR]

We reported here a high risk pregnant case in which the BoBs SP TM sp assay for chorionic villus sampling (CVS) was 22q11.2 microduplication, but it was normal in AF because of confined placental mosaicism (CPM). BACs-on-Beads™ assay for a case of trisomy 22 confined placental mosaicism The BACs-on-Beads™ (BoBs™) assay was a multiplex, bead-based suspension array using microspheres with two distinct infra-red and red fluorochromes to generate more than 100 different unique probes. [Extracted from the article]