Renjun Wang

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We investigated the molecular mechanisms responsible for the induction of apoptosis in mouse monocytic macrophage cell line J774A.1 stimulated by 7-ketocholesterol (7-KC). Cell apoptosis was detected by Annexin V-propidium iodide (PI) staining. The DNA-binding activity of nuclear factor kappa B (NF-kappaB) was assessed by electrophoretic mobility shift(More)
A simulation experiment with supplementation and exclusion of solar ultraviolet-B (UV-B) radiation was conducted to study the effects of enhanced and near ambient UV-B radiation on the growth and reproduction of alpine annual pasture Vicia angustifolia on Qinghai-Tibet Plateau. Enhanced UV-B decreased the plant height and biomass, biomass allocation to(More)
AIMS 7-Ketocholesteryl-9-carboxynonanoate (oxLig-1), a lipid moiety of oxidized low-density lipoprotein (oxLDL), has been reported to be a crucial ligand of beta2-glycoprotein I (β(2)-GPI), and plays a potential role in the development of atherosclerosis (AS), however, the role of the sole oxLig-1 in the development of AS remains unclear. MAIN METHODS(More)
α1,6-Fucosyltransferase (Fut8) knock-out (Fut8(-/-)) mice showed an abnormality in pre-B cell generation. Membrane assembly of pre-BCR is a crucial checkpoint for pre-B cell differentiation and proliferation in both humans and mice. The assembly of pre-BCR on the cell surface was substantially blocked in the Fut8-knockdown pre-B cell line, 70Z/3-KD cells,(More)
BACKGROUND/AIMS Nasopharyngeal carcinoma (NPC) is a distinctive type of head and neck cancer with the highest incidence in South China. Previous studies have proved that matrine, a main alkaloid isolated from Sophora flavescens Ait, has antitumor activity against NPC. However, the effect is not so pronounced and the underlying mechanism remains largely(More)
The allelopathic effects of fresh tissue, dry powder and aqueous extracts of three macroalgae, Ulva pertusa, Corallina pilulifera and Sargassum thunbergii, on the growth of the dinoflagellates Heterosigma akashiwo and Alexandrium tamarense were evaluated using coexistence culture systems in which concentrations of the three macroalga were varied. The(More)
This essay aims to research the effect of okadaic acid (OA) on A549 cell multiplication, and cell apoptosis induced by OA was observed by cell morphology. MTT assay, trypan blue exclusion test (TBET), Giemsa staining method and acridine orange (AO) fluorescence staining assay were applied. The results of cell survival evaluated by TBET and colorimetric(More)
Estrogen deficiency is associated with increased incidence of cardiovascular diseases. But merely estrogen supplementary treatment can induce many severe complications such as breast cancer. The present study was designed to elucidate molecular mechanisms underlying increased susceptibility of arrhythmogenesis during myocardial infarction with estrogen(More)
1. Alterations in the paraventricular nucleus (PVN) are reported to be involved in sympathetic overactivity in chronic heart failure (CHF). Inhibitory inputs into the PVN contribute to sympathetic outflow. The aim of the present study was to comparatively determine the role of GABA mechanisms in the PVN in the tonic control of cardiovascular activity in(More)
BACKGROUND/AIMS Tempol is a protective antioxidant against ischemic injury in many animal models. The molecular mechanisms are not well understood. Nuclear factor erythroid 2-related factor (Nrf2) is a master transcription factor during oxidative stress, which is enhanced by activation of protein kinase C (PKC) pathway. Another factor, tubular epithelial(More)