Results 11 to 20 of about 2,395 (204)

Construction of acellular cartilage matrix/silk fibroin scaffold and its cartilage tissue engineering study [PDF]

open access: yes, 2023
Objective·To construct a bioactivity tissue engineering scaffold with double network cross-linking for cartilage tissue regeneration using an acellular cartilage matrix (ACM) with a natural silk fibroin (SF) biomaterial.Methods·The cell-associated ...
CI Zheng   +5 more
core   +1 more source

Mechanism of blood-brain barrier damage caused by the inhibition of Wnt7/β-catenin pathway induced by endoplasmic reticulum stress in cerebrovascular endothelial cells after stroke [PDF]

open access: yes, 2023
Objective·To investigate whether the inactivation of Wnt7/β-catenin signaling causes the destruction of the blood-brain barrier (BBB) in cerebrovascular endothelial cells after ischemic stroke, and investigate whether endoplasmic reticulum stress bursts ...
DONG Haiping   +3 more
core   +1 more source

Effect of montelukast on leukotriene B4 metabolism in asthma [PDF]

open access: yes, 2023
Objective·To observe the effect of montelukast on the expressions of key genes in LTB4 (leukotriene B4) metabolic pathway in treating asthma and investigate the candidate intervene targets of asthma.Methods·The acute, subacute, and chronic asthmatic ...
FU Hongling   +6 more
core   +1 more source

THE LABORATORY CULTURE AND REPRODUCTION of TWO IANCELETS IN XIAMEN [PDF]

open access: yes, 2009
国家自然科学基金(30570208);教育部高等学校博士学科点专项科研基金(20070384041 ...
吕小梅   +5 more
core   +1 more source

3种饲料添加剂对吉富罗非鱼幼鱼生长性能、消化酶活性和肝、肠组织结构的影响 [PDF]

open access: yes, 2018
为探讨中草药提取物、胆汁酸、微生态制剂对吉富罗非鱼(Oreochromis niloticus)生长性能、消化酶活性和肝、肠组织结构的影响,以基础饲料为对照,分别在每千克基础饲料中添加中草药提取物(1、2 g)、胆汁酸(0.1、0.2 g)、微生态制剂(1、2 g)配制成6种试验饲料,选取平均体质量为(32.75±5.75)g的吉富罗非鱼幼鱼483尾,随机分为7处理,每处理3平行,每平行23尾,共进行养殖实验45 d。结果显示:与对照组相比,低剂量使用此3种添加剂均有改善实验鱼生长和饲料利用的趋势 ...
孙陆宇   +3 more
core   +1 more source

Learning from YXGOOD MODE and to guarantee safety of meat products [PDF]

open access: yes, 2011
“瘦肉精“事件为我国肉品安全现状敲响了警钟,我们有必要探索并推行一套新的食品安全保障方法。厦门银祥集团于2001年创造“银祥模式“,经过十年实践,已经完善为从养殖到餐桌的新型肉品安全保障模式。介绍了“银祥模式“三环节六步骤的实施细节,剖析了该模式背后的企业精神,为改善我国肉品质量提供方法借鉴。The "clenbuterol" event makes present situation of meat safety serious in China,and we need to explore and ...
刘伟榕
core  

锯缘青蟹的人工养殖 [PDF]

open access: yes, 2002
锯缘青蟹(Scylla serrata Forskal),俗称青蟹,主要分布于印度洋-太平洋的热带、亚热带海域,是经济价值很高的食用蟹类,为名优养殖品种之一。在我国主要分布于浙江舟山以南的东南近海河口港湾海区,尤以福建、浙江、广东、海南 ...
艾春香
core  

“动物酵素营养液”对奶牛乳房炎及产奶量的影响 [PDF]

open access: yes, 2014
为验证基础日粮中添加0.8%“京福龙“动物酵素营养液对奶牛乳房炎及产奶量的影响。选择不同牧场的荷斯坦奶牛300头进行试验,结果显示,试验组没有出现乳房炎,且产奶量明显增加。试验期间,A组试验的试验组较对照组每头奶牛增加经济效益达3306.4元,b组试验的试验组较对照组每头奶牛增加经济效益达4578 ...
张强, 梁会欣, 王景芳, 连玉武
core  

黑猩猩持续性腹泻的诊治 [PDF]

open access: yes, 2010
持续性腹泻是造成黑猩猩死亡的重要疾病。青岛动物园的黑猩猩米纳依(雌)和齐库(雄)先后于2009年5月上旬出现了持续性腹泻症状。据观察黑猩猩米纳依和齐库的日常生活卫生习惯较差,经常不饮用水盆中的水,喜欢饮用排水沟中的脏水,喜欢食用 ...
刘刚, 刘梦, 许树军
core  

Generating amphioxus Hedgehog knockout mutants and phenotype analysis [PDF]

open access: yes, 2015
文昌鱼隶属脊索动物门头索动物亚门,是无脊椎动物到脊椎动物的过渡类群,其躯体结构简单,是研究胚胎发育的理想材料。本文以文昌鱼为实验对象,利用TAlEn敲除技术对HEdgEHOg(HH)基因在胚胎发育中的功能进行了研究。在文昌鱼HH基因翻译起始位点下游附近选取TAlEn目标位点,根据此序列组装相应TAlEn重组质粒,体外合成M rnA,向未受精卵注射M rnA后,经体外受精获得f0代胚胎。效率分析显示,靶向该基因的TAlEn M rnA可导致f0代代胚胎在相应基因组区域发生突变的比例为34 ...
李光, 王义权, 王慧
core  

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