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    纯氧与空气复苏对缺氧新生大鼠肝细胞凋亡 及Bcl-2和Bax 蛋白表达的影响

    Published 2009-01-01
    “…【目的】 为了比较纯氧与空气复苏对缺氧新生大鼠的复苏效果,探讨新生大鼠肝细胞凋亡及Bcl-265380;Bax蛋白表达在缺氧复苏中的作用65377; 【方法】 采用SD新生大鼠建立缺氧模型,并分组进行纯氧与空气复苏65377;实验分为正常对照组(无预缺氧和复氧实验)65380;纯氧复苏组(PO组) 和空气复苏组(RA组) 65377;取肝组织,HE 染色光镜观察肝组织病理变化,TUNEL法测定肝细胞凋亡指数,免疫组化检测肝组织Bcl-265380;Bax蛋白的表达情况65377;【结果】 与正常对照组相比,PO组可见肝细胞肿胀,肝细胞有部分细胞器缺失,肝细胞呈明显的片状坏死,有炎性细胞浸润,肝细胞索排列紊乱65377;RA组肝细胞索排列基本正常, 肝细胞损伤程度,炎细胞浸润及肝细胞肿胀都较PO组轻65377;PO 24 h及72 h亚组的细胞凋亡指数分别为(11.2 ± 3.2)%和(9.2 ± 1.0)%,RA 24 h及72 h亚组的细胞凋亡指数分别为(9.0 ± 2.9)%和(7.4 ± 1.9)%,均低于相应的PO各亚组(P < 0.01)65377;PO 24 h及72 h亚组Bcl-2蛋白表达(11.55 ± 1.06)%和(10.49 ± 1.03)%, 均低于对应的RA各亚组,RA 24 h及72 h亚组Bcl-2蛋白表达分别为(13.06 ± 2.35)%和(11.71 ± 1.69)%65377;PO 24 h及72 h亚组Bax蛋白表达分别为(4.81 ± 1.13)%和(4.62 ± 0.79)%,均高于对应的RA各亚组,RA 24 h及72 h亚组Bax蛋白表达分别为(4.08 ± 0.31)%和(3.88 ± 0.48)%65377;PO组与RA组的细胞凋亡指数65380;Bcl-2及Bax蛋白表达及Bcl-2/Bax比值差异具有统计学意义(P < 0.01), 各组内亚组之间差异无统计学意义(P > 0.05)65377; 【结论】 纯氧复苏较空气复苏后新生大鼠肝细胞的凋亡更严重65377;纯氧复苏促进Bax基因的表达上调,空气复苏可使凋亡抑制基因Bcl-2表达上调,暗示纯氧复苏对新生大鼠肝的损伤要重于空气复苏65377;…”
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  11. 21451
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    Magnetic hybrid chitin-horse manure humic acid for optimized Cd(II) and Pb(II) adsorption from aquatic environment by Rahmat Basuki, Yusuf Bramastya Apriliyanto, Elva Stiawan, Adya Rizky Pradipta, Bambang Rusdiarso, Budi Riza Putra

    Published 2025-06-01
    “…In addition, up to five adsorption-desorption cycles, the Cd(II) and Pb(II) adsorption was 84.29 % and 88.71 %, respectively. By the eluent 0.1 M HNO3, desorption of Cd(II) and Pb(II) from the adsorbent surface was 93.87 % and 90.71 %, respectively, demonstrating enhanced recycling potential and cost-effectiveness. …”
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    Prevalence of dengue and leptospirosis coinfection and associated mortality rates: a systematic review and meta-analysis by Suraj Tiwari, Mahalaqua Nazli Khatib, Rekha MM, Mandeep Kaur, Girish Chandra Sharma, Puneet Sudan, K. Satyam Naidu, Rajesh Singh, Teena Vishwakarma, Sonam Puri, Muhammed Shabil, Anuradha Yadav, Takveer Singh, Sahil Khurana, Rachana Mehta, Prakasini Satapathy, Renu Sah, Abhay M Gaidhane, Ganesh Bushi

    Published 2025-01-01
    “…The pooled mortality rate among co-infected patients was 9.96% (95% CI: 0–53.49%), with moderate heterogeneity (I² = 71%). The prediction interval for mortality ranged from 0.00 to 100%. …”
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