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Functional Ecology, Volume 39, Issue 4, Page 1096-1111, April 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract Many invasive plant species have demonstrated a better ability to tolerate and accumulate heavy metals than their co‐occurring native plants. Given the potential biological toxicity of heavy metals to phytopathogens, we postulated that heavy metal contamination could ...
Tiantian Lin +7 more
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Plant nutrient‐acquisition strategies contribute to species replacement during primary succession
Journal of Ecology, Volume 113, Issue 4, Page 988-1003, April 2025.Pioneer species Hippophae acquires phosphorus and nitrogen mainly by ‘mining’ and N2‐fixing strategies and thus dominates in the beginning of primary succession. As soil nutrient availability increases with the mobilization of apatite‐P and input of N‐rich plant residues, Hippophae' strategies become less efficient than Populus's scavenging strategies.
Xiao‐Long Li +12 more
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Ultrasound in Obstetrics &Gynecology, Volume 65, Issue 3, Page 303-310, March 2025.ABSTRACT Objective Globally, one in four pregnant women is classified as overweight or obese, based on their prepregnancy body mass index (BMI). Obese pregnant women are at increased risk of adverse pregnancy outcomes and long‐term cardiovascular disease that occurs earlier in life.
M. Charakida +6 more
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Zhongshan Daxue xuebao. Yixue kexue ban, 1998 目的:对表皮细胞在不同的培养方法、不同的培养液及不同底物中的生长情况进行 3 方面的探讨,以便选出较好的一种组合进 行表皮细胞培养,为改善烧伤皮源不足的问题打下基础。方法:①采用人包皮或体皮制成皮块、皮粒、表皮细胞悬液进行液体培养,比较 3 种方 法中表皮细胞生长情况;②应用纯表皮细胞悬液进行空气液体界面培养,平铺平皿培养及培养瓶液体培养,比较表皮细胞贴壁、生长情况;③另 将表皮细胞悬液接种于 3 种不同的培养液,即 RPM I 1640, RPMI 1640+M EM 及 MEM 比较细胞生长差异 ...
朱家源 利天增 苏爱云 郭浩光 唐 庆 朱 斌
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Veterinary Dermatology, Volume 35, Issue 6, Page 595-604, December 2024.Background – Mycobacterium cell wall fraction (MCWF) is derived from nonpathogenic Mycobacterium phlei and is used as an immunomodulatory compound in clinical practice, yet its mode‐of‐action requires further research. Objective – To evaluate the host response to MCWF in canine peripheral blood mononuclear cells (PBMCs) by using enzyme‐linked ...
Robert Ward +9 more
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肝细胞生长因子对慢性肝损伤时肝部分切除术后肝再生和肝功能的影响
Zhongguo shiyan zhenduanxue, 2005 目的研究肝细胞生长因子对慢性肝损伤时肝部分切除术后肝再生和肝功能的影响。方法对慢性肝损伤模型SD大鼠行30%肝部分切除术,术后10d,经腹腔注射肝细胞生长因子,同时建立正常对照组。观察不同剂量肝细胞生长因子对肝再生,肝功能和肝储备功能的影响。结果实验组与对照组相比,AST,ALT,总胆固醇、动脉血酮体比具有显著的统计学意义 ...
左国杰 +4 more
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Zhongguo shiyan zhenduanxue, 2005 目的 比较不同消化酶对体外培养的原代乳鼠雪旺细胞的影响。方法 取1周龄SD乳鼠坐骨神经,分别用胰蛋白酶、胶原酶Ⅱ型、混合酶消化,相同方法及实验条件下进行雪旺细胞培养,观察细胞形态、计算2 4h贴壁活细胞百分比及MTT微量比色法比较细胞的生长增殖状况。结果 胰蛋白酶消化组细胞收获量相对最小,细胞损伤程度较大;胶原酶组细胞有一定程度损伤;混合酶组细胞收获量最大,细胞生长状态较好。结论 单纯使用胰蛋白酶或胶原酶消化对原代雪旺细胞的活性及增殖有一定影响,采用胰蛋白酶与胶原酶联合消化效果较好。
李春雨 +6 more
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Jianzhu Gangjiegou Jinzhan, 2020 为了获悉圆端形椭圆钢管混凝土偏压长柱的理论计算模型和受力性能,考虑了圆端形椭圆截面特征,提出了圆端形椭圆钢管混凝土本构关系等效方法;基于有限元法建立了圆端形椭圆钢管混凝土长柱在偏压作用下的理论分析模型。对钢材强度、混凝土强度、偏心距、径厚比、长短轴比和长细比等诸多参数进行了系统分析,评价了各参数对圆端形椭圆钢管混凝土长柱偏压承载力的影响,揭示了其破坏模式。研究结果表明:圆端形椭圆钢管混凝土偏压长柱的承载力随着混凝土强度和钢材强度的增大而增大;随着偏心率、径厚比、长短轴比和长细比的增大而减小。最后 ...
邵幸巧, 王静峰, 沈奇罕
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Jianzhu Gangjiegou Jinzhan为研究内置T肋圆管钢桥墩在承受恒定竖向荷载和水平往复荷载作用下的极限承载力和延性性能。文中首先通过与既有试验结果对比，验证所采用有限元分析方法的准确性，然后对内置8根T肋圆管钢桥墩试件进行有限元建模分析，研究正则化径厚比、钢桥墩正则化长细比、纵向加劲肋正则化长细比、轴压比等参数对钢桥墩极限承载力与延性性能的影响规律；最后基于参数化分析结果提出了预测该类钢桥墩极限承载力和延性性能的计算公式。结果表明：随着正则化径厚比、钢桥墩正则化长细比、纵向加劲肋正则化长细比及轴压比的增大，钢桥墩顶部水平荷载 ...
上官城鑫, 高圣彬, 董江磊
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新型伊立替康衍生物ZBH-1208的体外抗肿瘤活性及机制研究
Zhongguo shiyan zhenduanxue, 2015 目的研究新型伊立替康衍生物ZBH-1208体外对肿瘤细胞的生长抑制作用并初步探讨其作用机制。方法采用四甲基偶氮唑盐比色（MTT）法检测分析ZBH-1208对人宫颈癌HeLa细胞、人非小细胞肺癌A549细胞、人小细胞肺癌NCI-H446细胞、人乳腺癌MCF-7细胞、人结肠癌SW1116细胞、人胃腺癌SGC-7901细胞、人肝癌SMMC-7721细胞及人胚肾293细胞的生长抑制作用,计算IC50值;流式细胞术检测ZBH-1208对肿瘤细胞周期及活化Caspase-3表达的影响。结果 ZBH ...
赵静 +8 more
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