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1.
目的 观察大黄有效部位(Rep)对环孢霉素A(CsA)肾毒性的预防及治疗作用.方法 将60只SD大鼠随机分为正常组[6 mL/(kg·d)橄榄油]、模型组[30 mg/(kg·d)CsA]、治疗组[1~2周:30 mg/(kg·d)CsA,3~4周:30 mg/(kg·d)CsA+50 mg/(kg·d)Kep]、预防组[30 mg/(kg·d)CsA+50 mg/(kg·d)Rep],每组各15只.每周观察大鼠24h尿量,取血测定血肌酐(Scr)和尿素氮(BUN)水平.4周后,取肾组织,测定丙二醛(MDA)及超氧化物歧化酶(SOD)含量,同时做组织切片病检,用肾小管评分评价肾脏损害程度.结果 给药2周后,模型组、治疗组大鼠体重明显降低,尿量明显增加,Scr和BUN水平明显增高,肾组织病理切片检查发现明显异常;3~4周后给予Rep,治疗组大鼠各项指标明显改善.预防组与对照组比较,体重、尿量、尿素氮及肌酐无明显差别,其肾脏损伤程度也轻于模型组.结论 大黄有效部位能有效减轻CsA所致的肾组织毒性损伤. 相似文献
2.
丹参对大鼠环孢素A慢性肾毒性的保护作用 总被引:10,自引:0,他引:10
目的:为提高同种肾移植术后患者的长期存活率,研究丹参对环孢孢素A慢性肾毒性的防护作用。方法:观察大鼠灌服CsA及低盐饮食28d,肾功能、病理和转化生长因子-β(TGF-β1)免疫组化的改变及复方丹参注射液对上述改变的防护作用。结果:CsA能诱导大鼠肾小球滤过率下降,增加尿中N-乙酰-β-D-氨基葡萄糖苷酶(NAG)的排泄,引起肾间质纤维化和小动脉病变等。丹参能改善上述病变,减低肾内TGF-β1的表 相似文献
3.
目的:观察罗格列酮(RGZ)对环孢素A(CsA)所致肾组织炎细胞浸润及肾间质纤维化的作用,探讨RGZ对CsA肾病(CCN)的保护作用.方法:将28只健康雄性SD大鼠随机分成:①对照组(n=6),LSD;②RGZ组(n=6),LSD+RGZ[5mg/(kg.d)];③CsA组(n=8),LSD+CsA[15mg/(kg.d)],④RGZ+CsA组(n=8),LSD+CsA[15mg/(kg.d)]+RGZ(5mg/(kg.d)).在实验开始后的2wk及5wk处死大鼠,分别用免疫组化方法检测CD68和ColⅣ,RT-PCR方法检测MMP-9和TIMP-1的表达量;HE,Masson染色观察肾脏病理改变.结果:与对照组相比,CsA组及RGZ+CsA组CD68,ColⅣ,MMP-9,TIMP-1的表达均增高,肾小管间质单个核细胞浸润数及肾间质纤维化程度显著增加,且CsA组显著高于RGZ+CsA组.RGZ组无明显变化.结论:RGZ可显著降低CsA对肾脏的毒性作用,其机制部分是通过降低CCN大鼠CD68,ColⅣ,MMP-9,TIMP-1的表达,从而改善肾间质纤维化. 相似文献
4.
目的 探索益母草对环孢素A(CsA)慢性肾毒性的保护作用.方法 将大鼠随机分为三组:对照组(橄榄油)、模型组(CsA +葡萄糖)及益母草组(CsA +益母草),观察给药前和给药28 d后各组大鼠内生肌酐清除率(Ccr)、24 h尿量以及肾脏组织学变化.结果 CsA 能诱导肾小球滤过率下降,导致肾间质纤维化和小动脉病变等.益母草注射液能提高肾小球率过滤并改善肾脏功能及病理变化,各组之间血浆醛固酮水平无变化.结论 益母草能够明显改善CsA引起的肾功能损害. 相似文献
5.
为进一步探讨冬虫夏草对环孢素A慢性肾毒性的保护作用和机制,将SD大鼠分为两组:CsA大鼠分为两组:CsA组和CsA+冬虫夏草组,实验3个组。结果显示:在实验不同时期冬虫夏草组大鼠血Cr,BUN及血清Na^+,K^+均较对照组为低,实验第3月冬虫夏草组鼠血清血管紧张素Ⅱ(AT-Ⅱ)水平低于对照组;实验不同阶段尿EGF排出量亦较对照组为低;肾组织病理形态改变较对照组明显为轻。本实验证明冬虫夏草对CsA 相似文献
6.
丹参对大鼠环孢素A慢性肾毒性的保护作用 总被引:1,自引:0,他引:1
目的:为提高同种肾移植术后患者的长期存活率,研究丹参对环孢素A(CsA)慢性肾毒性的防护作用。方法:观察大鼠灌服CsA及低盐饮食28d,肾功能、病理和转化生长因子-(TGF-β1)免疫组化的改变及复方丹参注射液对上述改变的防护作用。结果:CsA能诱导大鼠肾小球滤过率下降,增加尿中N-乙酰-β-D-氨基葡萄糖苷酶(NAG)的排泄,引起肾间质纤维化和小动脉病变等。丹参能改善上述病变,减低肾内TGF-β1的表达。结论:丹参对CsA的慢性肾毒性有明显的防护作用。 相似文献
7.
为探讨维拉帕米(Ver)对环孢素A(CsA)肾毒性的保护作用,采用给急性缺血性肾衰大鼠静脉注射CsA,造成急性CsA肾中毒模型,在此模型上同时给予Ver,观察用药前后肾功能及血浆,肾组织中内皮素(ET)的变化,结果表明Ver可以抑制CsA引起的ET分泌释放,改善肾功能,提示Ver确实能有效减轻CsA对肾脏的损伤。 相似文献
8.
应用CsA致大鼠离体灌注肾急性血流动力学障碍模型,研究川芎嗪对CsA肾毒性的防治作用。结果提示川芎嗪可能通过保护血管内皮细胞释放EDRF而对CsA急性肾毒性具有一定预防作用。 相似文献
9.
别嘌呤醇对新生大鼠缺氧缺血性脑损伤的保护作用 总被引:2,自引:0,他引:2
目的 探讨别嘌呤醇 (ALLO)对新生大鼠缺氧缺血性脑损伤 (HIBD)的影响。方法 将新生 7日龄SD大鼠 14 3只随机分为别嘌呤醇治疗组、缺氧缺血对照组和假手术组 ,缺氧缺血后即刻、2 4和 4 8h分别腹腔注射ALLO或生理盐水 ,然后观察ALLO对HIBD模型鼠缺氧缺血 (HI)后 4 2h脑含水量、72h脑神经元凋亡(TUNEL法 )及超微结构改变、14d体质量增长率、脑病理改变 (海马神经元死亡率 )、30d学习分辨能力和记忆保持能力 (三臂迷宫试验 )等的影响。结果 脑含水量 :治疗组缺血侧 [( 84 .75± 4 .5 2 ) % ]含水量较对照组[( 92 .32± 3.75 ) % ]明显减少 (P <0 .0 1) ;TUNEL染色结果 :HI后 72h缺血侧脑组织可见较多凋亡细胞。治疗组缺血侧皮质凋亡细胞数明显低于对照组 [分别为 ( 93.6± 10 .8)和 ( 110 .5± 16 .9)个 / 30 0 0个细胞 ,P <0 .0 1],治疗组缺血侧海马凋亡细胞数明显低于对照组 [分别为 ( 83.2± 11.5 )和 ( 94 .2± 12 .3)个 / 30 0 0个细胞 ,P <0 .0 5 ];超微结构改变 :对照组凋亡细胞数为 18%左右 (计数 30个视野 ) ,而治疗组为 6 %左右 ,治疗组细胞坏死、丢失也较对照组减轻 ;HI后 14d体质量增长百分率 (WIP) :治疗组 [( 16 7.0± 33.6 ) % ]较对照组 [( 135 .6±4 7.5 ) % ]无显著性差异 (P >0 .0 5 相似文献
10.
用离体灌注肾研究川芎嗪对环孢素A肾毒性的防治作用 总被引:1,自引:0,他引:1
应用CsA致大鼠离体灌注肾急性血流动力学障碍模型,研究川芎嗪对CsA肾毒性的防治作用。结果表明,川芎嗪可有效地预防CsA所导致的离体灌注肾RPF、GFR下降及RVR升高等血流动力学障碍,而EDRF抑制剂血红蛋白可阻抑川芎嗪的上述作用,提示川芎嗪可能通过保护血管内皮细胞释放EDRF而对CsA急性肾毒性具有一定预防作用。 相似文献
11.
Wujun Xue Yong Song Puxun Tian Xiaoming Ding Xiaoming Pan Hang Yan Jun Hou Xinshun Feng Heli Xiang Xiaohui Tian 《南京医科大学学报(英文版)》2010,(4):317-323
Objective: To investigate the effects of diltiazem and cyclosporine A (CsA) combination therapy on protecting the kidney, promoting graft functioning and improving post-transplanted kidney recovery. Methods: The blood con- centrations of CsA, the condition of the post-transplant kidney, the rate of acute rejection (AR), as well as hepatic and renal toxicity in 636 cases of renal transplant recipients were determined after being treated by CsA, with or without diltiazem. Results: Compared with the control group which received CsA, mycophenolate mofetil (MMF) and prednisolone (Pred) but lacked diltiazem, the group receiving these agents together with diltiazem required reduced dosage of CsA (P 〈 0.01), while blood concentrations of CsA were significantly increased (P 〈 0.01); the recovery time of graft function was reduced from (6.2± 1.5) d to (3.9± 1.4) d (P 〈 0.01), and the rate of AR was decreased from 13.2% to 7.9% (P 〈 0.01). Conclusion: In renal transplantation patients treated with CsA and diltiazem, blood concentrations of CsA were increased while the dosage was decreased. This efficient combination therapy reduced patients economic burden, at the same time retained kidney function, promoted graft function recovery and decreased hepatic and renal toxicity and the rate of AR. 相似文献
12.
XIAO Zheng LI Cheng-wen SHAN Juan LUO Lei FENG Li LU Jun LI Sheng-fu LONG Dan LI You-ping 《中华医学杂志(英文版)》2013,126(19):3767-3774
Objective To reveal interventions for chronic cyclosporine A nephrotoxicity (CCN) and provide new targets for further studies,we analyzed all relevant studies about interventions in renal cell apoptosis.Data sources We collected all relevant studies about interventions for cyclosporine A (CsA)-induced renal cell apoptosis in Medline (1966 to July 2010),Embase (1980 to July 2010) and ISI (1986 to July 2010),evaluated their quality,extracted data following PICOS principles and synthesized the data.Study selection We included all relevant studies about interventions in CsA-induced renal cell apoptosis no limitation of research design and language) and excluded the duplicated articles,meeting abstracts and reviews without specific data.Results There were three kinds of intervention,include anti-oxidant (sulfated polysaccharides,tea polyphenols,apigenin,curcumin,spirulina,etc),biologics (recombinant human erythropoietin (rhEPO),a murine pan-specific transforming growth factor (TGF)-beta-neutralizing monoclonal antibody1D11,cartilage oligomeric matrix protein (COMP)-angiopoietin-1 and hepatocyte growth factor (HGF) gene),and other drugs (spironolactone,rosiglitazone,pirfenidone and colchicine).These interventions significantly improved the CCN,renal cell apoptosis and renal dysfunction through intervening in four apoptotic pathways in animals or protected renal cells from apoptosis induced by CsA and increased cell survival through respectively four pathways in vitro.Conclusions There are three group interventions for CCN.Especially anti-oxidant drugs can significantly improve CCN,renal cell apoptosis and renal dysfunction.Many drugs can improve CCN through intervening in Fas/Fas ligand or mitochondrial pathway with sufficient evidences.Angiotensin Ⅱ,nitric oxide (NO) and endoplasmic reticulum (ER) pathways will be new targets for CCN. 相似文献
13.
Intrarenal activation of renin angiotensin system in the development of cyclosporine A induced chronic nephrotoxicity 总被引:2,自引:0,他引:2
Background The relationship between cyclosporine-induced chronic nephrotoxicity (CAN) and renin-angiotenein II in humans is still contradictory. This study was conducted to detect the levels of renin and angiotensin II (ANGII) both in renal tissue and plasma from kidney transplantation patients suffering from CAN.
Methods Twenty-six patients with allograft biopsy-proven CsA-related chronic nephrotoxicity (CAN group) and chronic rejection (control group) were enrolled in this study. Renal tissues were subjected to immunohistochemical staining with renin and ANGII antibodies. Renin and ANGII plasma levels were measured when the biopsy was performed. The relationship between expression of renin or ANGII and clinicopathological manifestations were also investigated. The cyclosporine plasma level was obtained 2 hours after morning dose (C2). In vitro, human umbilical vein endothelial cells (HUVEC) and rat mesangial cells (MC) were incubated with different concentrations of CsA (0, 250, 500, 1000 μg/L) for 24 hours. Secretion and expression of renin and ANGII was measured by radioimmunoassay or immunohistochemical staining.
Results Renal pathological scores for renin and ANGII expression were significantly higher in specimens of CAN than in controls (P 〈0.05). The plasma levels of renin, ANGII and C2 in the CAN group were higher than the control group, but no significant difference was found ((0.37±0.12) ng·ml^-1·h^-1 vs (0.20±0.10) ng·ml^-1·h^-1, P=0.076; (122.69±26.73) pg/ml vs (121.88±36.35) pg/ml, P=0.977; (719.04±55.89) ng/ml vs (658.80±90.78) ng/ml, P=0.196, respectively). In vitro, renin as well as ANGII expression increased significantly in both HUVEC and MC after the cells were incubated with CsA for 24 hours (P 〈0.05). CsA also stimulated the secretion of ANGII in HUVEC and MC in a dose-dependent manner.
Conclusions Renal allograft biopsy is important to differentiate chronic CsA-related nephropathy from chronic rejection 相似文献
Methods Twenty-six patients with allograft biopsy-proven CsA-related chronic nephrotoxicity (CAN group) and chronic rejection (control group) were enrolled in this study. Renal tissues were subjected to immunohistochemical staining with renin and ANGII antibodies. Renin and ANGII plasma levels were measured when the biopsy was performed. The relationship between expression of renin or ANGII and clinicopathological manifestations were also investigated. The cyclosporine plasma level was obtained 2 hours after morning dose (C2). In vitro, human umbilical vein endothelial cells (HUVEC) and rat mesangial cells (MC) were incubated with different concentrations of CsA (0, 250, 500, 1000 μg/L) for 24 hours. Secretion and expression of renin and ANGII was measured by radioimmunoassay or immunohistochemical staining.
Results Renal pathological scores for renin and ANGII expression were significantly higher in specimens of CAN than in controls (P 〈0.05). The plasma levels of renin, ANGII and C2 in the CAN group were higher than the control group, but no significant difference was found ((0.37±0.12) ng·ml^-1·h^-1 vs (0.20±0.10) ng·ml^-1·h^-1, P=0.076; (122.69±26.73) pg/ml vs (121.88±36.35) pg/ml, P=0.977; (719.04±55.89) ng/ml vs (658.80±90.78) ng/ml, P=0.196, respectively). In vitro, renin as well as ANGII expression increased significantly in both HUVEC and MC after the cells were incubated with CsA for 24 hours (P 〈0.05). CsA also stimulated the secretion of ANGII in HUVEC and MC in a dose-dependent manner.
Conclusions Renal allograft biopsy is important to differentiate chronic CsA-related nephropathy from chronic rejection 相似文献
14.
目的 :探讨不同剂量的环孢素A(CsA)对大鼠慢性肾毒性模型转化生长因子 β1 (TGF β1 )、肾素mRNA表达的影响。方法 :40只雄性SD大鼠 ,随机分为 5组 ,每组 8只。A组为橄榄油对照组 ;B组CsA 1 0mg/ (kg·d)组 ;C组为CsA 2 0mg/ (kg·d)组 ;D组CsA 30mg/ (kg·d) ;E组普通饮食加橄榄油对照组。除E组外 ,其余各组大鼠给予低盐饮食。采用逆转录多聚酶链反应 (RT PCR)的方法 ,研究CsA对大鼠肾内TGF β1 、肾素mRNA的表达影响。结果 :与A组相比 ,给予CsA 1 0mg/ (kg·d)组大鼠肾内TGF β1 mRNA、肾素mRNA表达轻度增加 ,但差异无统计学意义 (P >0 .0 5) ;而给予CsA 2 0mg/ (kg·d)组大鼠肾内TGF β1 mRNA、肾素mRNA表达明显增加 (P <0 .0 5) ,CsA 30mg/ (kg·d)组增加更加明显 (P <0 .0 1 )。 结论 :CsA的慢性肾毒性与肾内TGF β1 mRNA、肾素mRNA表达的增加有关 相似文献
15.
目的:探讨贝那普利和氯沙坦防治环孢素A(CsA)慢性肾毒性的疗效及作用机制.方法:50只SD大鼠随机分为对照组、模型组、贝那普利组、氯沙坦组、联合用药组,每组10只.低盐饲料饲养,以CsA 15 mg/(kg·d)皮下注射造模,贝那普利组、氯沙坦组、联合用药组分别以单用贝那普利、氯沙坦及两者联用灌胃治疗,对照组和模型组以同体积生理盐水灌胃.于第4周末处死动物,取肾脏作肾组织血管紧张素Ⅱ(AngⅡ)含量测定,Masson染色检测肾脏纤维化,免疫组织化学方法检测生长转化因子-β1(TGF-β1)和胶原Ⅲ(ColⅢ)的表达情况.结果:与对照组相比,模型组的肾组织AngⅡ含量、间质纤维化程度、TGF-β1、ColⅢ明显升高;单药治疗组间质纤维化程度、TGF-β1、ColⅢ较模型组均有所下降,联合用药组低于单药治疗组,差异均有统计学意义(P<0.05).结论:贝那普利和氯沙坦可能是通过下调TGF-β1,抑制ColⅢ表达,从而延缓CsA大鼠肾间质纤维化进展.两者联合应用,疗效更显著. 相似文献
16.
目的:别嘌醇在慢性肾脏病进展与心血管危险中的作用。方法选择门诊慢性肾脏病患者135例,随机化分为对照组和治疗组。治疗组患者给予别嘌醇治疗。降压药物、降脂药物和抗血小板药物,均先维持原剂量不变。对照组患者不使用别嘌醇治疗。分别观察两组患者治疗6个月、12个月和24个月时血压、血尿酸、超敏 C 反应蛋白、胱抑素-C 和肾小球滤过率(eGFR)的变化。记录患者治疗期间心血管事件的发生率。结果两组患者一般资料比较无差异,治疗组血尿酸浓度、 hs-CRP 浓度和胱抑素-C 浓度在治疗后6个月、12个月和24个月时显著低于治疗前水平(P<0.05),组间比较也显著低于对照组水平(P<0.05),治疗组在随访12个月和24个月时 eGFR 显著高于对照组(P<0.05)。别嘌醇的治疗可将心血管事件的发生危险降低71%(P=0.026)。结论别嘌醇的治疗,可减少炎症反应,并延缓中度 CKD 患者中肾脏病的进展,此外别嘌醇还可减少心血管危险。 相似文献
17.
目的观察环孢霉素A(CsA)对体外培养的NIT-1胰岛β细胞增殖和pol α1 mRNA表达的影响。方法用MTT法检测不同浓度的CsA (0.05~10 μmol/L)作用48和72 h后NIT-1胰岛β细胞增殖的情况。利用半定量RT-PCR法检测10 μmol/L CsA处理NIT-1胰岛β细胞48 h后pol α1 在mRNA水平上的表达。结果CsA可抑制NIT-1胰岛β细胞的增殖,且与时间、剂量正相关。另外,CsA还下调了pol α1 mRNA的表达。结论CsA可抑制NIT-1胰岛β细胞增殖,其机制可能与下调pol α1 mRNA表达有关。 相似文献
18.
目的分析服用环孢素A(CsA)的肾移植患者相关临床因素与牙龈增生(GO)程度的关系,初步探讨血清亲环素(CyPA)浓度与CsA诱导的牙龈增生(CUGO)的关系。方法本研究以65例用CsA为主要免疫抑制剂抗排斥患者为研究对象,经牙龈增生指数(GOI)评价后将患者分为牙龈增生组(GO~+)和牙龈无增生组(GO)。比较两组患者年龄、性别、服药时间、服药剂量、血清CsA和CyPA服药浓度、尿素、肌酐、牙龈评价之间的差异,观察血清CyPA浓度与CIGO发生及严重程度的关系。结果 GO(GOI≥30)发生率为21.54%(14/65)。GO~+组和GO~-组间年龄、性别、服药时间、尿素、肌酐、服药剂量和血清CsA浓度差异均无统计学意义。GO~+组血清CyPA浓度低于GO~-组[0.23(0.16~0.30)ng/mL vs 0.34(0.22~0.54)ng/mL,P=0.04)];血清CyPA浓度与GO严重程度呈负相关(r=-0.264,P=0.03),但与CsA服药剂量和其血清浓度无关(r=-0.014,P=0.91;r=0.012,P=0.9 3);牙龈评价结果:GO~+组的菌斑指数和龈乳头出血指数均高于GO~-组(1.41±0.27 vs 1.15±0.34,P=0.01;0.49±0.30 vs 0.25±0.11,P=0.01)。结论 CIGO的发生可能是局部因素与系统因素共同作用的结果;血清CyPA浓度可能是独立于CsA服药剂量和血药浓度之外的CIGO风险因素,对其进行检测有助于临床医师预判GO的发生。 相似文献
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本文探讨GM肾毒性发病机制,并观察SOD、Cs对GM肾毒性的影响。结果表明:GM组第8天后尿蛋白含量、尿渗透压、皮质丙二醛(MDA)含量的改变,与SOD组、Cs组比较有显著性差异(P<0.05)。提示脂质过氧化参与庆大霉素的肾毒性作用,SOD、Cs可以防治庆大霉素的肾毒性作用。 相似文献
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Experimental Study on Effect of Cordyceps Sinensis on Renal Protection,Urinary Enzymes and Nephrotox icity of Cyclosporine A in Rats 下载免费PDF全文
Experimental Study on Effect of Cordyceps Sinensis on Renal Protection,Urinary Enzymes and Nephrotoxicity Of Cyclosporine A i... 相似文献