Results 41 to 50 of about 24,587 (167)
New Phytologist, Volume 247, Issue 2, Page 504-517, July 2025.Summary Repetitive DNA is a feature of all organisms, ranging from archaea and plants to humans. DNA repeats can be seen both in coding and in noncoding regions of the genome. Due to the recurring nature of the sequences, simple DNA repeats tend to be more prone to errors during replication and repair, resulting in variability in their unit length ...
Sridevi Sureshkumar +3 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2007 【目的】应用精子膜蛋白亲和层析柱分离金黄地鼠前列腺精子结合蛋白，并用二维电泳和质谱对金黄地鼠前列腺精子膜结合蛋白进行初步分析。【方法】应用附睾精子膜亲和层析柱纯化前列腺精子结合蛋白，采用二维凝胶电泳对纯化的前列腺精子膜结合蛋白进行蛋白分离和图像分析，并结合基质辅助激光解吸附电离飞行时间质谱分析及数据库搜索从而鉴定部分蛋白质斑点；RT—PCR检测已鉴定蛋白在前列腺及未受精卵子中的mRNA的表达。【结果】附睾精子膜蛋白亲和层析柱可纯化出前列腺结合蛋白，前列腺附睾精子膜蛋白结合蛋白的二维凝胶电泳蛋白图谱 ...
骆建民, 谢江新, 王俐
doaj
Malignancy-associated metabolic profiling of human glioma cell lines using 1H NMR spectroscopy [PDF]
, 2015 胶质瘤恶性转化的原因和机制不明，给临床诊疗带来极大困难。越来越多的研究表明肿瘤恶性转化与细胞代谢紊乱密切相关，但胶质瘤恶性转化相关的细胞代谢特点目前尚不清楚。因此，探寻不同恶性程度胶质瘤细胞的代谢轮廓，将有助于开发监测胶质瘤恶性进展的非入侵式生物标志物和靶向代谢通路的治疗策略。本研究收集5种不同病理级别瘤组织来源的人脑胶质瘤细胞系（CHG5／SHG44／U118／U87／U251），其中CHG5和SHG44为WHOII级来源；U118,U87和U251为WHOIV级来源。体外培养后，首先通过侵袭能力 ...
邵巍
core
Systematic Entomology, Volume 50, Issue 3, Page 495-518, July 2025.Using genomic data from 285 species across 19 planthopper families, we conducted the first phylogenomic study targeting global planthoppers and inferred their phylogeny with the highest resolution so far. We proposed taxonomic changes including the establishment of a new family Borysthenidae stat. rev. and a new superfamily Meenoploidea superfam.
Junchen Deng +9 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2011 目的探讨卵巢浆液性囊腺癌与卵巢浆液性囊腺瘤的差异表达蛋白质谱,从而寻找特异性诊断标志物。方法采用二维液质联用分析技术。结果卵巢浆液性囊腺癌与卵巢浆液性囊腺瘤两组间差异蛋白数共计128个。其中116个蛋白在卵巢浆液性囊腺癌中表达上调,12个蛋白表达下调。结论纤维结合蛋白1,基膜聚糖,核心蛋白多糖,骨诱导因子,微管蛋白A、B,肌动蛋白,肌动蛋白素,角蛋白8,结蛋白,膜联蛋白A1、A2,YWHAZ,踝蛋白1,转酮醇酶1,组织蛋白酶D,X线交错互补修复基因6,谷胱甘肽转移酶,核仁蛋白,抑制素,抗原提呈蛋白1 ...
刘彦红 +4 more
doaj
The role of MiR-23b-3p in the epileptogenesis [PDF]
, 2016 癫痫是指脑部持续存在能导致癫痫反复发作，并出现相应的神经生物学、认知、心理学，以及社会学等方面的后果的脑部疾患。目前miRNA在癫痫发生发展中的作用引起越来越多的重视。miR-23b-3p是具有多种生物学作用的miRNA，如调节神经元增殖、分化和凋亡等,参与多种神经退行性疾病的病理机制。 本研究通过腹腔注射海人酸（Kainicacid,KA）构建小鼠癫痫模型，发作达到Racine标准的4-5级作为实验组纳入标准，对照组注射相同剂量的生理盐水，并应用荧光定量PCR法对皮层和海马组织中miR-23b-3p ...
战连波
core
Intragenic PNPLA1 duplication in Labrador retrievers with nonepidermolytic ichthyosis
Veterinary Dermatology, Volume 36, Issue 3, Page 314-320, June 2025.Background – Ichthyoses represent a heterogeneous group of cornification disorders characterised by epidermal scaling. Objectives – To describe the clinical, histopathological and genetic analysis of a Labrador retriever with nonepidermolytic ichthyosis, and the results of a Labrador retriever population screening for a newly detected PNPLA1 genomic ...
Stefan J. Rietmann +7 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2011 尿微量蛋白指用日常检验尿蛋白的方法不能发现而需用高度灵敏而特异的方法才能检出的尿中所含的少量蛋白。其种类很多,大多数属血浆的固有成分,如白蛋白、免疫球蛋白和微球蛋白等,也有肾小管产生的膜蛋白和某些疾病产生的蛋白等。各医院常根据需要,选定需检查的蛋白种类。有的只查白蛋白,以反映肾小球功能 ...
宋丁, 苏洁平, 李少鹏, 杨柳
doaj
, 2010 为认识我国淡水鱼类烂鳃病的病原以及柱形病在我国的发生情况,实验从发生烂鳃病的病鱼中分离细菌性病原,经过生理生化特性分析以及是否在含托普霉素的Shieh培养基中生长并形成黄色假根状菌落,是否产生降解明胶和硫酸软骨素的酶类等特性的鉴定,并结合16SrDNA序列分析,证实柱状黄杆菌(Flavobacterium columnare)是所分离的烂鳃病的病原。同时,研究也证实20世纪曾经命名为烂鳃(Gill-rot)病病原的鱼害黏球菌(Myxococcus piscicola Lu,Nie & Ko,1975 ...
姚卫建 +7 more
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Ultrasound in Obstetrics &Gynecology, Volume 65, Issue 5, Page 567-574, May 2025.ABSTRACT Objectives To assess the value of pregnancy‐associated plasma protein‐A (PAPP‐A) in screening for preterm pre‐eclampsia (PE) (delivery < 37 weeks' gestation) measured in maternal blood samples collected before 11 weeks, and to compare the screening performance of PAPP‐A with that of placental growth factor (PlGF) from blood samples collected ...
L. Rode +21 more
wiley +1 more source