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3篇 您的检索式:作者名="Cuijun Deng"
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1Mn-containing bioceramics inhibit osteoclastogenesis and promote osteoporotic bone regeneration via scavenging ROS显示文摘Osteoporosis is caused by an osteoclast activation mechanism.People suffering from osteoporosis are prone to bone defects.Increasing evidence indicates that scavenging reactive oxygen species(ROS)can inhibit receptor activator of nuclear factorκB ligand(RANKL)-induced osteoclastogenesis and suppress ovariectomy-induced osteoporosis.It is critical to develop biomaterials with antioxidant properties to modulate osteoclast activity for treating osteoporotic bone defects.Previous studies have shown that manganese(Mn)can improve bone regeneration,and Mn supplementation may treat osteoporosis.However,the effect of Mn on osteoclasts and the role of Mn in osteoporotic bone defects remain unclear.In present research,a model bioceramic,Mn-containedβ-tricalcium phosphate(Mn-TCP)was prepared by introducing Mn intoβ-TCP.The introduction of Mn intoβ-TCP significantly improved the scavenging of oxygen radicals and nitrogen radicals,demonstrating that Mn-TCP bioceramics might have antioxidant properties.The in vitro and in vivo findings revealed that Mn^(2+)ions released from Mn-TCP bioceramics could distinctly inhibit the formation and function of osteoclasts,promote the differentiation of osteoblasts,and accelerate bone regeneration under osteoporotic conditions in vivo.Mechanistically,Mn-TCP bioceramics inhibited osteoclastogenesis and promoted the regeneration of osteoporotic bone defects by scavenging ROS via Nrf2 activation.These results suggest that Mn-containing bioceramics with osteoconductivity,ROS scavenging and bone resorption inhibition abilities may be an ideal biomaterial for the treatment of osteoporotic bone defect.Jianmei Li Cuijun Deng Wanyuan Liang Fei Kang Yun Bai Bing Ma Chengtie Wu Shiwu Dong 2021Bioactive Materials2021,6,11:7
2An atypical component of RNA-directed DNA methylation machinery has both DNA methylation-dependent and -independent roles in locus-specific transcriptional gene silencing显示文摘指导 RNA 的 DNA methylation (RdDM ) 是在植物的一条重要 de novo DNA methylation 小径。RdDM 调停许多内长的 genomic loci,其大多数是联系的 transposon 的 transcriptional silencing。一幅前面的遗传屏幕在 Arabidopsis 为 RdDM 作为一个新部件识别了 DTF1 (DNA 有约束力的抄写因素 1 ) 。在 DTF1 的 Loss-of-function 变化释放 RdDM 目标 loci 的 transcriptional silencing 并且减少 24-nt 的累积从一些目标的小介入 RNA (siRNAs ) 。在 dtf1 异种植物,有趣地,在 solo-LTR 的 transcriptional 基因 silencing 的版本被减少的 siRNA 累积然而并非由减少的 DNA methylation 伴随。这些结果建议 DTF1 是 RdDM 的一个不正常的部件并且在 transcriptional 基因 silencing 有 methylation 依赖的两 DNA 和独立角色。我们建议除 DNA methylation 以外, siRNAs 可以引起某另外的 uncharacterized 导致 transcriptional 基因 silencing 的 epigenetic 修正。Jun Liu Ge Bai Cuijun Zhang Wei Chen Jinxing Zhou Suwei Zhang Qing Chen Xin Deng Xin-Jian He Jian-Kang Zhu 2011Cell Research2011,21,12:6
3Fabrication of Photo-crosslinked Chitosan- Gelatin Scaffold in Sodium Alginate Hydrogel for Chondrocyte Culture显示文摘Feng Liu Ali Goodarzi Haifeng Wang Joanna Stasiak Jianbo Sun Yu Zhou Peng Zhao Cuijun Deng Hongzhen Xu Xing Tang Hailong He Chao Lin Jiansheng Su 2014Bio-Medical Materials and Engineering2014,,1:1
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