Results 21 to 30 of about 10,006 (163)
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Lung cancer remains the leading cause of cancer‐related deaths worldwide, yet immune checkpoint blockade (ICB) is often compromised by an immunosuppressive tumor microenvironment (TME) with acidosis, hypoxia, and poor T cell infiltration. Here, we develop a TME‐responsive nanoplatform (MgH2@Lip/PD‐L1) that couples hydrogen gas therapy with PD ...
Xuyu Gu +5 more
wiley +1 more source
Species-specific element of Oryza sativa mitochondria tRNATrp(水稻线粒体tRNATrp种属特异性元件研究)
Zhejiang Daxue xuebao. Lixue ban, 2009 为了研究水稻线粒体tRNATrp的种属特异性元件,在野生型水稻线粒体tRNATrp的基础上,设计并完成了 3种向人tRNATrp的突变,体外转录并用枯草杆菌和人这两种不同种属来源的色氨酰-tRNA合成酶(TrpRS)测定了这些tRNATrp分子的氨酰化活力（Kcat/KM）.结果表明,与野生型水稻线粒体tRNATrp相比,3个突变体被人TrpRS氨酰化的活力分别提高了 354、407和803倍,其中以PMPH3（水稻线粒体tRNATrp的氨基酸接受茎的C2-G71和G3 ...
JINXiao-ling(金晓玲) +1 more
doaj +1 more source
The study of Mitochondrial DNA Gene Rearrangement in 4 species of birds(Aves: Falconiformes) [PDF]
, 2016 线粒体控制区由于进化速率快，被作为分子标记广泛应用于种群遗传学和保护生物学等领域的研究。但最近在许多鸟类的线粒体中都发现控制区存在重复拷贝，并且2个控制区拷贝之间的碱基相似度较高。因此在扩增其中一个控制区基因时可能受到另一个控制区的干扰，而对研究结果产生影响。本研究主要针对隼形目鸟类线粒体DNA(mtDNA)基因组中控制区重复及由此产生的基因重排现象进行研究，初步探讨控制区重复和基因重排产生的过程和机制。 本次实验首次对鹰科中的白头鹞(Circusaeruginosus)、日本松雀鹰 ...
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The role of appoptosin in regulating oxidative stress and mitochondrial morphology [PDF]
, 2015 氧化压力是指细胞或体内氧自由基的含量超出抗氧化物及抗氧化酶类清除能力时对细胞或机体造成的氧化胁迫。氧化压力参与了包括炎症、衰老、心血管疾病、癌症、糖尿病、艾滋病、神经退行性疾病等多种疾病的发病过程。氧化压力通过多个下游信号通路对细胞造成胁迫，如JNK、Foxo等，但其中的具体参与蛋白仍有待于深入阐明。Appoptosin也被称为SLC25A38，是一种定位于线粒体内膜的转运蛋白，负责转入甘氨酸并转出D-氨基乙酰丙酸，进而调节血红素（heme）的合成 ...
张翠林
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Intervertebral disc degeneration (IDD) is a predominant cause of low back pain, significantly impacting quality of life. Mitochondrial fitness is essential in the progression of IDD, as it regulates cellular senescence and pyroptosis. This study investigates the role of mitochondrial caseinolytic protease P (ClpP) in alleviating senescence and
Kun Wang +7 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2005 目的 探讨Aβ2 5-3 5致PC12细胞损伤后线粒体COX活性和ATP合成的改变及人参皂甙对它们的影响。方法 Aβ2 5-3 5损伤PC12细胞 ,人参皂甙处理前后紫外分光光度计测定线粒体COX活性 ,高效液相色谱仪测定线粒体能荷。结果 Aβ2 5-3 5损伤PC12细胞后 ,线粒体COX活性降低 ,线粒体ATP、ADP含量降低 ,人参皂甙能提高线粒体COX活性及ATP、ADP含量。结论 人参皂甙通过抗氧化作用可以减轻Aβ2 5-3 5致PC12细胞线粒体的氧化损伤。
赵丽波, 张琳, 邬英全, 周维国
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Population genetic structure and phylogentic analysis for Morone americana in Delaware Bay of United States [PDF]
, 2016 美洲狼鲈(Moroneamericana，Gmelin，1789)隶属于鲈形目(Perciformes)，狼鲈科(Moronidae)，狼鲈属(Morone)，别名美洲白鲈、白石鮨。美洲狼鲈是在美国东海岸浅海区域十分常见的一种溯河洄游鱼类，每逢春末夏初，生活于近海和河口区域的美洲狼鲈便溯河洄游至河流中上游产卵繁衍。美洲狼鲈也经常被用作海区污染程度的指示种。鉴于美洲狼鲈广泛的分布范围以及巨大的种群数量，其十分适合作为近岸洄游性鱼类群体研究的模式种类。同时，其在检测环境污染方面也具有主要作用 ...
边力
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Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Nanozymes have attracted considerable attention in cancer therapy due to their adjustable enzyme activity and high catalytic efficiency. However, they still face a major challenge from tumor metastasis. In this work, endogenous/exogenous dual‐responsive bimetallic hollow PdRu (termed HPdRu) nanozymes were prepared.
Nan‐Nan Zheng, Xin Hu, Jun‐Qing Hu
wiley +1 more source
Study on the Function of the Neuron-Specific Protein TMEM59L in the Central Nervous System and in Oxidative Stress-Induced Cell Death [PDF]
, 2016 细胞凋亡是受基因严格调控的、自然发生的程序性细胞死亡过程，而细胞自噬是细胞组分自我降解的过程，二者在发育、组织稳态以及病原体防御中扮演着重要角色。细胞凋亡和细胞自噬发生异常会引发多种疾病包括癌症和神经系统疾病。神经元对于氧化应激十分敏感，并易于受到活性氧的攻击；当神经元长期暴露于包括过氧化氢在内的活性氧的攻击时会引发细胞死亡，导致各种神经系统疾病。因此，鉴定参与神经元死亡的新基因蛋白并揭示其作用机制，将有助于阐明神经系统疾病的致病机理。 TMEM59L为新发现的脑特异性高表达蛋白 ...
郑秋阳
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Integrative Conservation, Volume 4, Issue 3, Page 405-415, September 2025.Assessing the genetic diversity of edible insects harvested from the wild is a pre‐requisite for designing conservation and management policies. The caterpillars of Gynanisa maja (Saturniidae) are harvested in large numbers in mopane woodlands in southern Africa, where they represent a seasonal source of income and nutrition to many rural communities ...
Zwannda Nethavhani +3 more
wiley +1 more source