排序方式： 共有90条查询结果，搜索用时 15 毫秒
71.
目的:探索肝癌患者血清SOD、MDA的变化。对肝癌患者26例和健康对照组30例。方法:对肝癌患者均应用改良TBA微量法测定血清丙二醛(MDA)、以黄嘌呤氧化酶法测定超氧化物歧化酶(SOD)水平的变化。结果:肝癌组患者血清MDA水平显著高于对照组(P<0.01),而血清SOD水平显著低于对照组(P<0.01)。结论:提示肝癌患者存在明显的抗氧化能力障碍,通过血清MDA、SOD水平的检测,可为肝癌的临床治疗及疗效观察提供一定的依据。 相似文献
72.
天麻钩藤饮对高血压病肝阳上亢证患者超氧化物歧化酶的影响 总被引：4，自引：0，他引：4
目的：观察天麻钩藤饮对高血压病（肝阳上亢型）患者血浆超氧化物歧化酶（SOD）的影响。方法：采用随机对照方法，观察天麻钩藤饮组（30例）和对照组（30例）治疗前后血压水平及血浆超氧化物歧化酶的变化。结果：两组治疗后血压明显降低，超氧化物歧化酶明显增高（P〈0．01，P〈0．05），组间比较无显著差异（P〉0．05）。结论：天麻钩藤饮能显著升高高血压病患者血浆超氧化物歧化酶的水平。 相似文献
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74.
李雨奎 《安徽科技学院学报》2011,25(3):6-8
运用组织学方法研究了椭圆背角无齿蚌肝脏的组织学结构。结果表明,肝脏是一对大型的腺体,消化腺为复管状腺,由分泌管、导管、连接管及间质构成,腺管上皮有消化细胞和嗜碱性细胞2种类型,消化细胞内含众多的囊泡和颗粒。 相似文献
75.
Infusion of nonmyeloablative bone marrow alleviates acute rejection reaction in liver allotransplantation 总被引：1，自引：0，他引：1
Objective: To study the effect and implication of nonmyeloablative donor specific bone marrow (DSBM) infusion on the immunoreaction of liver allotransplantation. Methods: Orthotopic liver transplantation model was used in this study. Groups were set as follows: Group Ⅰ, syngeneic control (Wistar-to-Wistar); Group Ⅱ, acute rejection (SD-to-Wistar); Group Ⅲ, acute rejection treated with cyclosporine A (CsA) by intramuscular injection (SD-to-Wistar CsA); Group Ⅳ, bone marrow infusion at 7 d pretransplantation followed by short-term CsA treatment (SD-to-Wistar DSBM); Another group of short-term CsA treatment preoperatively without bone marrow infusion was also set as control. General characteristics and survival time were observed.Histological grades of rejection were determined by pathological examination. IL-2 and IFN-γ level in peripheral blood and donor liver were detected respectively by Enzyme-Linked Immuno-Sorbent Assay (ELISA) and Western blot. Chimerism of donor cells was measured by PCR for a male-specific marker (Y-chromosome-specific sequence, Sry). Results: No signs of rejection were found in Group Ⅰ. Acute rejection occurred in both Group Ⅱ and the short-term CsA treated group. All the recipients died at (9～15)d posttransplantation with a median survival time of (10.7±0.5) d and (11.2±2.4) d, respectively. Only mild rejection could be seen in Group Ⅲ. In Group Ⅳ, 4 out of 6 recipients had long-term survival (＞100 d), the histological grade of rejection was significantly lower than that of Group Ⅱ, so did the expression level of IL-2 and IFN-γ in both peripheral blood and grafted liver.Y-chromosome-specific sequence (Sry) of male SD rats could be detected in the bone marrow, spleen and thymus of female recipients at 15 d after bone marrow infusion. Conclusion: Mild preconditioning nonmyeloablative donor specific bone marrow infusion can enhance chimerism formation in recipients, alleviate the rejection of liver allotransplantation and prolong survival of liver allotransplantation. 相似文献
76.
M. H. Meshkibaf A. Ebrahimi R. Ghodsi A. Ahmadi 《Indian journal of clinical biochemistry : IJCB》2006,21(1):161-164
A number of newly developed antiepileptic drugs are currently in use, among them Lamotrigine (LTG) is more common. Despite
the extensive use of this drug, it has not been possible to predict the side effects especially the hepatotoxic reactions
after long-term treatment. The present study was designed to find out alterations in the activities of liver enzymes after
chronic exposure of rats to different dose of LTG. Adults male (Wistar) rats were treated orally with LTG [5 mg/kg body weight
or 25 mg/kg body wt.] for 60 days. After the experimental period, auto analyzer carried out liver function tests. The liver
histopathology was obtained after scarifying the rats. There was a significant increase in the level of ALP, AST, ALT and
bilirubin at therapeutic dose of LTG. The increase level of these enzymes and bilirubin at toxic dose were much higher and
significant. However, the total protein and albumin significantly decreased at toxic dose of LTG. Elevation of liver enzymes
and bilirubin after chronic exposure of rats to high dose of LTG reflects hepatocellular damage that may lead to hepatitis.
It is concluded that regular liver function and drug monitoring should follow the treatment with LTG. 相似文献
77.
目的 探讨耐力训练对非酒精性脂肪肝肝脏抗氧化系统及活性氧生成的影响.方法 雄性8周龄ApoE基因敲除小鼠24只,西方膳食14周后,随机分为2组,非酒精性脂肪肝模型组(H,n=12,14周),跑台运动组(E,n=12,14+12周).跑台运动12周,坡度为0°,跑速13m/min,60min/time,每周5次.在造模与训练结束后,测定顺乌头酸酶、总SOD、MnSOD、CuZnSOD和GPx酶的活性;MDA、谷光甘肽(GSH)和羟自由基(OH-的含量;Mn-SOD、谷光甘肽过氧化物酶(GPx)和NF-кBmRNA的表达,光镜观察脂肪肝病变程度.结果 耐力训练显著提高总SOD、MnSOD、CuZnSOD、顺乌头酸酶和GPX酶的活性和肝脏GSH含量;显著降低CAT的活性及肝脏OH-和MDA的含量:显著上调MnSOD和NF-кBmRNA表达,GPxmRNA未见显著性改变.结论 耐力训练可以有效提高非酒精性脂肪肝肝脏抗氧化系统的能力,减少活性氧生成,从而达到改善非酒精性脂肪肝的效果. 相似文献
78.
Paraoxonase is an anti-oxidant enzyme, which circulates in the plasma, tightly bound to HDL. This enzyme is known to be synthesized
in the liver. This study was carried out in order to ascertain the diagnostic utility of this enzyme in acute liver disease.
Serum basal as well as salt (NaCl) stimulated paraoxonase was estimated in 50 patients with an established diagnosis of acute
liver disease and also in 50 healthy blood donors. Paraoxonase levels were significantly lower in patients as compared with
controls (P < 0.05). The ‘receiver operating characteristic’ plot showed that this enzyme has a high degree of sensitivity and specificity
for the diagnosis acute liver disease. Serum PON is likely to emerge as an additional test of liver function, as it encompasses
three different attributes of hepatic function namely, synthetic capacity, detoxication and secretory functions. 相似文献
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Grapes are the richest source of antioxidants due to the presence of potent bioactive phytochemicals. In this study, the phytochemical contents, scavenging activities and protective role against H2O2-induced oxidative stress in liver tissue ex vivo of four grape (Vitis vinifera) cultivars extracts, namely Flame seedless (black), Kishmish chorni (black with reddish brown), Red globe (red) and Thompson seedless mutant (green), were evaluated. The total phenolics and flavonoids content in pulp or skin fractions of different grape cultivars were in the range of 47.6–310 mg gallic acid equivalent/g fresh weight (fw), and 46.6–733.3 µg catechin equivalent/g fw respectively. The scavenging activities in skin of different grape varieties against 2,2-diphenyl-1-picrylhydrazyl (44–58 %), hydrogen peroxide (15.3–18.6 %), and hydroxyl radicals (50–85 %), were higher than pulp of the corresponding cultivars. These scavenging activities of grape extracts were found to be significantly (p < 0.01) correlated with the levels of total phenols, flavonoids and ascorbic acid. Liver tissues from goat treated with H2O2 (500 μM) showed significantly decreased GSH content by 42.9 % and activities of catalase by 50 % and glutathione reductase by 66.6 %; while increased thiobarbituric acid reactive substances and nitric oxide level by 2.53- and 0.86-fold, respectively, and activity of glutathione S-transferase by 0.96-fold. Grape skin extracts showed the stronger protective activity against H2O2-induced oxidative stress in liver tissue ex vivo, than its pulp of any cultivar; and the Flame seedless (black) cultivar showed the highest potential. In conclusion, our study suggested that the higher antioxidant potential, phytochemical contents and significant scavenging capacities in pulp and skin of grape extracts showed the protective action of grape extracts against H2O2-induced oxidative stress in liver tissue ex vivo. 相似文献
80.
目的：探讨运动与CLA对青春期肥胖大鼠内脏脂肪及肝肾功能的影响。方法：高脂饲养大鼠建模7周后,取24只肥胖大鼠随机分成4组,每组6只,分别为对照组、CLA组、运动组、运动＋CLA组。运动方案为跑台坡度0°,速度为21-25 m/min,总运动时间60min/天,5次/周,给药方案为运动后即刻灌喂1.6g/kg剂量的CLA,共持续干预8周。干预结束后麻醉大鼠采集血液及组织,测肝肾功能和内脏脂肪重量。结果：8周干预后,运动组、运动＋CLA组的体重、内脏脂肪重量及体脂率均明显低于对照组、CLA 组（P＜0.01,P＜0.05）,对照组和CLA组无明显差异（P〉0.05）;对照组、运动组、运动＋CLA组谷草转氨酶和谷草丙比数值明显高于CLA组（P＜0.01）,其他组别之间无明显差异（P＞0.05）;运动组、运动＋CLA组血尿素氮和肌酐较对照组、CLA 组有变化,但无明显差异（P＞0.05）。结论：8周运动与 CLA干预可有效降低青春期肥胖大鼠体重、内脏脂肪重量、体脂率,运动结合CLA能显著减少内脏脂肪含量,增加瘦体重,降低体脂率,具有明显的减肥效果。运动和CLA干预有一定的保肝作用,对肾脏功能无明显影响。 相似文献