Results 41 to 50 of about 23,080 (207)
Background – Autosomal recessive ichthyosis leads to structural or biochemical changes that impair skin barrier function. Hypothesis/Objectives – To assess (1) the phenotype and genotype in a litter of Jack Russell Terriers with autosomal recessive congenital ichthyosis (ARCI), and (2) the defective skin barrier and determine if a topical ceramide can ...
Elizabeth Mauldin +7 more
wiley +1 more source
Study on Oxidativestress and Bioaccumulation of Three Typical Brominated Flame Retardants in Oryzias melastigma Embryos [PDF]
多溴联苯醚(Polybrominateddiphenylethers,PBDE)、四溴双酚A(TetrabromobisphenolA,TBBPA)和六溴环十二烷(Hexabromocyclododecane,HBCD)是目前世界上广泛使用的三大溴代阻燃剂(brominatedflameretardants,BFRs)。由于它们的亲脂性、环境稳定性、在生物体中的富集放大作用以及对水生生态系统和人体健康产生一定的毒性效应而受到各界的广泛关注和重视。本研究选取BDE-47 ...
赵琰琰
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Read the free Plain Language Summary for this article on the Journal blog. Abstract Plant phosphorus (P) acquisition strategy is considered to be an intrinsic driver behind plant succession. However, variations in plant P acquisition strategies in connection to soil P fraction changes after wetland drainage remain unclear.
Zhenhui Jiang +6 more
wiley +1 more source
为研究翻耕、旋耕、免耕对作物根系生长影响的机理,以耕层棕壤(0-20cm)和犁底层棕壤(20-40cm)为试验材料,采用盆栽的方法模拟了不同耕作模式及容重,并研究了这些条件对土壤过氧化氢酶、多酚氧化酶、脲酶、磷酸酶、转化酶活性的影响。结果表明:中、下层不同土样及不同容重对土壤酶活性均有显著影响 ...
郑存德 +5 more
doaj
Protein phosphatase 2A-B55δ enhances chemotherapy sensitivity of human hepatocellular carcinoma under the regulation of microRNA-133b [PDF]
目的:原发性肝细胞癌(hepatocellularcarcinoma,HCC)是我国公共卫生关注的热点问题之一,寻找增强HCC化疗敏感性的有效干预靶点具有重要意义。蛋白磷酸酶2A(proteinphosphatase2A,PP2A)是重要的肿瘤抑制因子;PPP2R2D基因编码的PP2A-B55δ亚基参与细胞周期有丝分裂调控。我们前期研究验证了PPP2R2D基因3’-非翻译区(3’-untranslatedregion,3’UTR)的+15G>C多态性位点受微小RNA-133b(microRNA-133b,
庄群瑛
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Abstract Environmental DNA (eDNA) monitoring of species distribution has become a critical tool in ecology, conservation biology and fisheries for identifying the presence and distribution of diverse organisms, including important, threatened and invasive species.
Jiwei Yang +4 more
wiley +1 more source
土壤酶活性的高低可以直接或间接反映土壤肥力和土壤健康程度。研究选取烟台市黄务镇破坏山体周边7种植被恢复模式,测定土壤脲酶、多酚氧化酶、过氧化物酶、过氧化氢酶活性及土壤理化性质和细菌、真菌、放线菌数量。目的是探讨不同植被恢复模式对土壤酶活性的影响机制,为合理恢复植被提供参考依据。结果表明:不同植被恢复模式的土壤酶活性表现为0-10cm土层高于10-20cm土层;对土壤酶活性的改善作用为混交林>纯林>灌草丛,人工植被恢复模式中以黑松麻栎混交林最优;土壤酶活性具有显著差异 ...
张刘东 +5 more
doaj
The research on structure and bioactivities of condensed tannins from Ficus altissima leaves [PDF]
高山榕(FicusaltissimaBlume)是一种广泛栽培的绿化植物,目前主要用作行道树,园景树和庭荫树,对于其其它方面的开发和利用较少,未使其价值得到充分的体现。本研究通过总酚和可溶性单宁的测定发现两者在高山榕叶片中都具有较为丰富的含量,分别达118.4±3.3mgGAE/gDW和39.61±1.02mg/gDW。单宁结构复杂多样,具有特殊丰富的生物活性,目前已广泛应用于医药、食品、农业、生态等多个方面,逐渐成为植物化学、药理学和食品化学等交叉学科的研究热点 ...
梁戈
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Pharmacology of drugs used in autoimmune dermatopathies in cats and dogs: A narrative review
Immunosuppressive drugs are the mainstay of treatment for many feline and canine autoimmune skin diseases, either as monotherapy or in combination with other drugs. Treatment with these drugs is often lifelong and may have long‐term consequences on the affected animal's overall quality of life.
Heng L. Tham, Jennifer L. Davis
wiley +1 more source
ROS via promoting RIP1 auto-phosphorylation to enhance TNF-induced necrosome formation and subsequent necroptosis [PDF]
活性氧(ReactiveOxygenSpecies,ROS)的产生存在于生物体的众多生理病理过程中。大量的实验数据表明,活性氧还参与到了细胞凋亡和程序性坏死的进程里。丁基羟基苯甲醚(Butylatedhydroxyanisole,BHA)是公认的活性氧清除剂,异戊巴比妥(Amytal)是线粒体上电子传递到泛醌的抑制剂,二者都曾被广泛报道,可以抑制或者延缓肿瘤坏死因子(TumorNecroticFactorα,TNF-α)诱导的小鼠成纤维细胞系L929的程序性细胞坏死。然而 ...
张荧荧
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