Results 21 to 30 of about 20,063 (165)

Sfmbt2 10th intron hosted microRNA-669e-5p/3p promote cellular apoptosis by targeting anti-apoptotic gene Bcl2 [PDF]

open access: yes, 2012
细胞凋亡是一个主动的由基因决定的自动结束生命的过程,对有机体的正常运行和体内稳态有重要作用。细胞凋亡一旦受到抑制,很可能导致肿瘤发生。然而,肿瘤发生发展过程中细胞凋亡调控的有关机制还不完全清楚。microRNAs(miRNAs)是一类非编码的小分子RNA,它们具有调节基因表达活性的功能,在细胞的各个进程(如细胞凋亡,分化和发育中)发挥着重要的作用。在肿瘤中miRNAs有可能通过调节与凋亡相关基因的表达,参与肿瘤细胞凋亡的调控。 miR-669e-5p和miR-669e ...
王涛
core  

Boron Difluoride Chelated Aminoanthraquinone Photosensitizer for Type I Photodynamic Therapy

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Type I photosensitizers capable of generating cytotoxic reactive oxygen species (ROS), with reduced oxygen dependence under photoirradiation, are regarded as a promising phototherapeutic approach for hypoxic solid tumors. Herein, based on the electron donor of 9‐phenyl‐carbazole (Cz) and the electron acceptor of anthraquinone (AQ ...
Tian Zhang   +8 more
wiley   +1 more source

Extraction of biopharmaceutical plasmid DNA by reversed micelles [PDF]

open access: yes, 2006
质粒DNA作为生物药剂(尤其作为基因治疗和基因疫苗的载体)的意义和需求越来越大。质粒DNA作为一种新的非病毒转基因载体,优点是安全可靠、稳定、对外源基因的容纳量大、不会引起免疫系统反应及易于生产等。随着基因治疗和DNA疫苗从实验室进入临床研究和批准上市,必须开发出一个经济、简单以及高重复性的质粒分离纯化生产工艺,使其质量达到临床应用的标准。近年来,国外针对生物药剂质粒DNA的分离纯化,开发了机械破碎、碱法裂解等工艺破碎细胞释放质粒,离心或过滤分离细胞碎片、变性蛋白和核酸 ...
黄翠云
core  

Chemical Stability of Ceftazidime Compounded in Saline, Glycerin and Dexamethasone‐SP Solutions Stored at −20°C, 4°C and 25°C Over a 60 Day Period

open access: yesVeterinary Dermatology, Volume 36, Issue 6, Page 862-869, December 2025.
ABSTRACT Background Chronic cases of canine otitis externa (OE) often develop infections with Pseudomonas aeruginosa (PA). Given the organism's high level of resistance, veterinary surgeons often turn to compounded solutions. Limited data describing the stability and potency of compounded ceftazidime (CAZ) solutions are available, which may affect ...
McKenna Snidow   +6 more
wiley   +1 more source

双血管抑制基因通过不同治疗方法对大鼠肝癌的抑瘤效果分析

open access: yesZhongguo shiyan zhenduanxue, 2009
目的分析局部注射和肝动脉给予血管抑素基因(Angiostatin)和内皮抑素基因(Endostatin)重组质粒对大鼠肝癌治疗效果的差异。方法将肝癌模型大鼠随机分为:局部治疗组、局部对照组、肝动脉治疗组、肝动脉对照组。治疗组给予200μL质粒和脂质体复合物和对照组给予生理盐水200μL。治疗后观测肿瘤大小、微血管密度、血管内皮生长因子、肿瘤凋亡指标的变化。结果6d开始基因治疗组各治疗指标与对照组相比均具有统计学差异 ...
谢耀萍, 杨志杰, 李勇, 马铎
doaj  

World Association for Veterinary Dermatology Consensus Statement for Diagnosis, and Evidence‐Based Clinical Practice Guidelines for Treatment and Prevention of Canine Leishmaniosis

open access: yesVeterinary Dermatology, Volume 36, Issue 6, Page 723-787, December 2025.
Hyperkeratosis of (a) the footpads and (b) the nasal planum. ABSTRACT Background Canine leishmaniosis (CanL) due to Leishmania infantum remains common, and veterinarians do not always follow scientifically sound approaches for diagnosis, treatment and prevention. Objectives To provide consensus guidelines for diagnosis and evidence‐based guidelines for
Manolis N. Saridomichelakis   +9 more
wiley   +1 more source

HIF-1α治疗家兔肢体缺血模型的实验研究

open access: yesZhongguo shiyan zhenduanxue, 2008
目的探讨缺氧诱导因子(HIF-1α)基因治疗家兔肢体缺血模型的疗效。方法在家兔缺血模型的肢体内注射携带/HIF-1α基因的重组腺病毒AdHIF-1α,检测HIF-1α基因在缺血肌组织中表达情况,并观察其生物学特点。实验以携带GFP基因的重组腺病毒AdGFP为对照。结果免疫组化染色均检测到HIF-1α的表达。转AdHIF-1α基因治疗组毛细血管计数及小动脉计数均高于AdGFP转导的对照组 ...
孙晓峰   +5 more
doaj  

Research on preparation and gene transfection of iron oxide nanoparticles multiple modified gelatin-siloxane nanoparticles [PDF]

open access: yes, 2014
脑胶质瘤是神经外科中最常见的颅内肿瘤,发病率约占中枢神经系统肿瘤的40%,成人神经恶性肿瘤的78%[1]。近30年来,虽然神经影像学及胶质瘤的治疗都取得了很大进展,但恶性胶质瘤的预后仍然悲观。成人中恶性胶质瘤的1年及5年生存率分别约为30%和13%,其中GBM的中位生存时间仅12月左右[2]。而肿瘤的发生从根本上讲是基因的病变,目前基因治疗从理论到实践为彻底地攻克肿瘤,改善患者预后带来了极大的希望。但仍然有很多环节亟待研究和早日攻破,其中由于缺乏高效稳定的载体系统,加之中枢神经系统血脑屏障结构的特殊性 ...
万希晨
core  

Efficacy and Field Safety of Ilunocitinib for the Control of Allergic Dermatitis in Client‐Owned Dogs: A Multicenter, Double‐Masked, Randomised, Placebo‐Controlled Clinical Trial

open access: yesVeterinary Dermatology, Volume 36, Issue 6, Page 825-837, December 2025.
Background: Inhibition of the Janus kinase pathway is an established treatment for allergic dermatitis. Objective: To evaluate the efficacy and safety of ilunocitinib for control of pruritus in dogs with allergic dermatitis in a randomised, double‐masked clinical trial.
Sophie Forster   +5 more
wiley   +1 more source

Effect of personalized folic acid therapy under guide of MTHFR gene polymorphism on homocysteine in hemodialysis patients with chronic renal failure

open access: yesLinchuang shenzangbing zazhi, 2019
目的观察慢性肾衰竭维持性血液透析(MHD)患者在N5,N10-亚甲基四氢叶酸还原酶(MTHFR)基因多态性指导下的个体化服用叶酸治疗纠正高同型半胱氨酸血症的效果。方法研究纳入93例一般状况稳定的MHD患者,分为普通治疗组和个体化治疗组。两组患者均行低通量透析,并在研究期间透析器和血流量保持前后稳定。在透析治疗基础上,普通治疗组患者均口服叶酸15 mg/d,个体化治疗组依据患者MTHFR基因型决定叶酸用量,纯合子突变型(TT)、杂合子突变型(CT)和野生型(CC)患者分别口服叶酸剂量为30 mg/d、15
CHAI Lin   +3 more
doaj  

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