Results 11 to 20 of about 17,840 (209)

基于TGFβ1/Smad4信号通路探究人参四逆汤对亚临床甲状腺功能减退症大鼠心功能的影响

open access: yesZhongguo shiyan zhenduanxue, 2022
目的 基于转化生长因子β1(TGFβ1)/Smad同源物4(Smad4)信号通路探究人参四逆汤对亚临床甲状腺功能减退症(SCH)大鼠心功能的影响。方法 随机数字表法将60只大鼠分为假手术组、SCH组、L-T4组、低剂量组、高剂量组、高剂量+LY2109761组(TGFβ1/Smad4通路抑制剂LY2109761),10只/组;甲状腺全切术及术后皮下注射L-T4建造SCH模型大鼠,成功后各组分别灌胃相应剂量药物或生理盐水,为期30 d,实验结束观察大鼠一般状况;检测大鼠心功能指标 ...
高艳超, 柳越, 王岩, 孙永艳
doaj  

Effects of Different Concentrations of Alcohol On Spatial Learning and Memory Ability and Hippocampal GFAP/NEUN in Mice [PDF]

open access: yes, 2017
目的 探究长期饮酒对小鼠行为学能力以及空间学习记忆能力的影响。方法 雄性KM小鼠45只,随机分成对照组(Con),低剂量组(Low)和高剂量组(High)。分别每天对照组0.10 ml/10 g自来水,低剂量组0.05 ml/10 g的56度红星二锅头,高剂量组0.10 ml/10 g的56度红星二锅头进行灌胃。连续灌胃13 d后进行衣架实验测行为学能力,最后取海马做免疫荧光染色观察海马神经元和星形胶质细胞。结果衣架实验得分,自主活动数值总体显示Low组高于其他两组,而且与Con组差异显著 ...
夏天   +7 more
core   +1 more source

Toxicity of BaP exposure during embryonic stage in zebrafish: the mechanisms involved [PDF]

open access: yes, 2016
多环芳烃(PolycyclicAromaticHydrocarbon,PAH)是环境中一类分布广泛的持久性有机污染物。苯并(a)芘(Benzo(a)pyrene,BaP)作为代表性的PAH具有包括神经毒性和生殖毒性在内的多种毒性。截至目前,关于BaP神经毒性的研究大多集中于高浓度或短期的暴露实验,而环境水平浓度下、长期的BaP暴露是否能引起同样的神经毒性则研究得较少;此外,胚胎时期低浓度BaP暴露对成年阶段的神经毒性、生殖毒性效应及其机制研究更为少见。因此本研究以斑马鱼为模式动物,分别进行环境水平浓度 ...
高东旭
core  

Highly Stable Aqueous Zinc Anodes Enabled by Synergistic Modulation of Interface and Solvation Structures

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT The stability of aqueous Zn2+ batteries is severely hindered by parasitic reactions at the Zn anode/electrolyte interface. Herein, itaconic acid (IA) is introduced as an effective electrolyte additive to achieve a highly stable zinc anode. Remarkably, IA concurrently modulates both the zinc anode/electrolyte interfacial structure and the Zn2 ...
Chenggang Wang   +5 more
wiley   +1 more source

3-溴丙酮酸调控JAK/STAT信号通路抗人卵巢癌细胞株A2780增殖的实验研究

open access: yesZhongguo shiyan zhenduanxue, 2020
目的探讨3-溴丙酮酸对人卵巢癌细胞株A2780增殖的抑制作用,并观察其对Janus激酶/信号转导子及转录激活子(JAK/STAT)信号通路的调控作用。方法取人卵巢癌细胞株A2780,培养至对数期,常规分装(1.5×106个/孔)至6孔板中,设置低、中、高剂量组和对照组,每组各包含5个复孔。继续培养待细胞贴壁生长后,3剂量组分别加入25、50、100μmol/L浓度的3-溴丙酮酸,对照组加入等量磷酸盐缓冲液(PBS),培养72h。对比各组培养期间细胞形态学变化,培养24h、48h和72h增殖抑制率变化 ...
郭云鸿, 王瑞芳, 田晓予
doaj  

Effect of Neu5Ac supplementation on learning and memory in weanling rats and rat pups [PDF]

open access: yes, 2016
研究背景:新生儿生长发育对营养物质有特殊的要求,任何营养素的匮乏对机体的正常生长和器官结构功能的发育都有深远影响,对脑发育的影响尤为重要。早期营养对大脑的结构和功能有着不可逆转的影响,一旦错过大脑发育的关键期,产生的缺陷后天将无法弥补。新生儿期营养素的缺乏会影响其认知功能。 N-乙酰神经氨酸(N-acetylneuraminicacids,Neu5Ac)是人体中最常见的唾液酸。Neu5Ac在人体中普遍存在,在脑组织及母乳中含量较高;唾液酸作用于神经元细胞膜及突触,在神经系统中产生重要作用 ...
卞冬生
core  

Developing HMME‐Conjugated NIR‐II Activated Carbon Dots Nanospray for the Treatment of MRSA Biofilm Infections in Diabetic Wound via PTT/CDT/SDT

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Diabetic wound infections are a common complication of diabetes, which severely impact patients' quality of life. Effective treatment of diabetic wound infections remains one major challenge in the clinic, partially due to the formation of bacterial biofilm and antibiotic resistance.
Liang Zhou   +8 more
wiley   +1 more source

Effects of Ciji Hua’ai Baosheng Decoction on Hematopoiesis & Tumor Cells Apoptosis Related Factors of Tumor-bearing Chenmotherapy Mice with H22 Hepatoma Carcinoma Cells [PDF]

open access: yes, 2015
目的:研究并证实慈济化癌保生汤(CijiHua’aiBaoshengDecoction,CHBD)对肝癌化疗后机体整体机能的改善作用,明确慈济化癌保生汤对肝癌化疗后机体血细胞的保护作用、造血相关因子的生成作用、促肿瘤细胞凋亡作用,为慈济化癌保生汤在临床的应用提供科学依据。 研究方法:培养昆明(KM)小鼠肝癌H22细胞,稀释为2×107/ml,接种于60只小鼠右前腋下,常规饲养7天后,全部形成皮下移植瘤,以环磷酰胺(CyclophosphamideTabletsandInjections,CTX ...
程尧
core  

Cobalt‐Based Metal Hybrid Encapsulated Micro‐Aluminum for Tailoring Combustion in Composite Solid Propellants

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT To address the issues of aluminum (Al) powder agglomeration during combustion and low oxidizer decomposition efficiency in composite solid propellants, this study utilized in situ self‐assembly technology to prepare cobalt‐based hybrid‐coated modified Al powder (Al@CZ).
Chong Chen   +11 more
wiley   +1 more source

Investigation of Radiation Effects on Titanate Fluorite Structure Derivatives [PDF]

open access: yes, 2016
材料面对高辐射环境反应如何是其能否作为核应用材料(如废物固化体、结构材料和惰性基质燃料)的重要依据。钛酸盐萤石结构衍生物(Ln2Ti2O7和Ln2TiO5)因其优异的物理化学性能,可作为高放射性核废物和锕系元素(钚)的重要候选材料之一。过去几十年,已有大量研究聚焦于该种材料的抗辐照性能研究,发现钛酸盐陶瓷材料经辐照后极易非晶,并且给出了临界非晶温度和总结了各种非晶转变机制。在本文研究中,除了非晶化现象外,我们还观察到了一个普遍现象:多晶转变,即钛酸盐萤石衍生物从原始的有序结构转变成无序的立方萤石相结构。
谢秋荣
core  

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