Results 21 to 30 of about 17,261 (166)
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT This study introduces a novel velocity‐iterative directional annealing (IDA) strategy to overcome stagnation challenges in columnar grain growth of Ti‐48Al‐2Cr‐2Nb alloys. By dynamically adjusting hot zone migration rates across iterative cycles, the IDA protocol achieved 92.2% synchronization between anisotropic α‐grain boundary (GB ...
Zedong Liu +6 more
wiley +1 more source
The role and mechanism of hnRNP A2/B1 in breast cancer [PDF]
, 2015 核不均一核糖核蛋白A2/B1（hnRNPA2/B1）是hnRNP蛋白家族成员，在肿瘤细胞增殖与凋亡过程中具有重要作用。本实验为了探究hnRNPA2/B1蛋白在乳腺癌组织中的表达及其在乳腺癌细胞中的定位。研究hnRNPA2/B1在乳腺癌细胞中所涉及的主要功能、信号通路以及可变剪接和蛋白融合过程，并探究hnRNPA2/B1对细胞增殖、凋亡、迁移等生物功能的影响。从而阐明hnRNPA2/B1在乳腺癌中的作用机制，为肿瘤的机理研究、临床诊断和治疗提供一个新靶点。本实验用免疫组化方法检测hnRNPA2 ...
韩荣
core
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Constructing a porous scaffold with the essential features of natural cancellous bone, including structural architecture and biochemical cues, is one of the pivotal factors for effective bone regeneration. In this study, a biomimetic composite porous Gelatin fibrous scaffold (SrHA/Gelatin) incorporating ultralong strontium‐doped hydroxyapatite
Yin‐Chuan Wang +8 more
wiley +1 more source
Mechanistic Analysis of Immunomodulation by Human Induced Pluripotent Stem Cells Derived Mesenchymal Stem Cells in Mice [PDF]
, 2015 背景：间充质干细胞是具有自我更新能力和分化能力的组织细胞前体细胞，能够分化为一系列的间质细胞，包括成骨细胞、成软骨细胞、脂肪细胞、肌细胞和内皮细胞等。细胞治疗是再生医学发展的一个重要分支。越来越多的研究发现，间充质干细胞能够修复组织损伤，达到一定治疗效果。因此，间充质干细胞被视为天然组织工程材料的重要种子细胞，具有广阔的应用前景。此外，间充质干细胞具有负性免疫调节能力。在体外共培养条件下，间充质干细胞能够抑制免疫细胞功能，包括抑制T细胞反应，抑制树突状细胞的成熟和抗原提成，抑制B细胞激活和增殖 ...
李成林
core
In vitro culture, cryopreservation, and field reintroduction of the endangered Mingan thistle
Conservation Biology, Volume 40, Issue 2, April 2026.Abstract Current plant conservation efforts are hindered by, for example, poor seed germination, low viability, and insufficient propagation and preservation technologies. To address these problems, we devised an approach to plant conservation that integrates conservation, preservation, and restoration (CPR), which uses advanced in vitro techniques. We
Mukund R. Shukla +4 more
wiley +1 more source
Study on the Molecular Mechanisms of dlk1 Stimulated Lung Cancer Cell Proliferation [PDF]
, 2010 Background and objective The imprinted gene dlk1 has been recognized as a cancer related gene since it aberrantly expressed in a series of cancer tissues, but its role in lung cancer is still unknown. The aim of this study is to examine dlk1’s expression
Bing LING +10 more
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World Medical &Health Policy, Volume 18, Issue 1, March 2026.ABSTRACT Against the backdrop of calling for nonfemale‐oriented promotion of vaccination against human papillomavirus (HPV), this study explored three potential names—“HPV Vaccine,” “Cervical Cancer Vaccine,” and “Genital Warts Vaccine”—to promote vaccination against HPV infection among heterosexual men.
Timothy K. F. Fung +2 more
wiley +1 more source
The effects of miR-30c-1-3p regulating group ⅡA secretory phospholipase A2（sPLA2-ⅡA）expression on the pathogenic mechanism of atherosclerosis [PDF]
, 2015 动脉粥样硬化（Atherosclerosis，AS）是急性冠脉综合症、脑卒中等众多心脑血管疾病共同的病理基础。sPLA2-ⅡA在动脉粥样硬化病变处含量明显增多、活性显著增强，同时伴随中性粒细胞的增多。sPLA2-ⅡA以酶的催化水解作用和作为致炎因子的促炎症反应双重生物学作用参与AS发生发展的各个阶段。 MicroRNA（miRNA）是近年发现广泛存在于真核细胞中的高度保守的、非编码单链小分子RNA，具有最广泛的基因调节功能，参与机体多种生理、病理过程的调控。 我们运用miRNA靶基因预测软件发现miR ...
夏小春
core
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT The limited osteogenic capacity of magnesium phosphate cement (MPC) has constrained its biomedical applications, underscoring the necessity to develop MPC with enhanced physical properties and bone‐forming capabilities. In this study, a multifunctional MPC system was developed by incorporating zoledronic acid‐loaded near‐infrared (NIR ...
Bin Wang +8 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2019 【目的】观察miR-34a在低氧诱导的大鼠肺动脉平滑肌细胞增殖中的作用并探讨其可能的机制。【方法】原代分离和培养大鼠肺动脉平滑肌细胞（PASMC），并给予3%低氧处理后，用Real-time PCR法检测miR-34a和Notch1mRNA在大鼠PASMC中的表达；低氧条件下用细胞转染法过表达和抑制miR-34a、沉默Notch1基因的表达后用EDU法观察细胞增殖情况，并用Real-time PCR和Western blot法检测细胞核增殖抗原PCNA的表达。【结果】分离和培养大鼠PASMC并给予3 ...
马兰
doaj