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1.
本文调查接触煤焦沥青的炭素作业工人173例和对照组163例细胞生物膜损伤二项重要指标——谷胱甘肽过氧化物酶活性(GSH—Px)和过氧化脂质(LPO)水平。结果:炭素作业工人LPO水平呈增高趋势,但GSH—PX水平未下降。提示本组观察的炭素沥青作业工人机体对抗不饱和脂肪酸产生氧化脂质反应能力是健全的。  相似文献   

2.
公路养路工生物膜损伤指标检测   总被引:3,自引:0,他引:3  
以某公路段养路工173人为接触组,机关行政人员40人为对照,对血清过氧化脂质、血清唾液酸及血清谷胱甘肽硫;转移酶三项生物膜损伤指标进行了检测。  相似文献   

3.
目的 通过对210名纺织行业工人进行的调查和体检,分析研究了静态负荷所致工人肌肉损伤后血清酶的变化.方法 根据工人主诉,在体检结果阳性人群中随机抽取40人为病例组,在本厂管理人员中随机抽取40人为对照组.然后分别抽取静脉血检测肌酸磷酸激酶(CK)、乳酸脱氢酶(LDH)、超氧化物歧化酶(SOD)和谷胱甘肽过氧化物酶(GSH-Px)的含量.结果 调查工人中肌肉骨骼损伤检出率为28.4%,检出率随工龄延长而增高.检测结果显示,病例组工人血清CK、LDH的活性较之对照组显著升高,而GSH-Px的活性较之对照组显著下降,SOD活性两组间无明显差异.结论 静态负荷作业可导致工人肌肉损伤,血清CK、LDH和GSH-Px的活性可作为评价职业人群肌肉骨骼损伤的生物学指标.  相似文献   

4.
目的分析新型冠状病毒肺炎早期检测指标的危重症预警价值。方法比较新型冠状病毒肺炎危重和非危重、糖尿病和非糖尿病早期的血糖、中性粒细胞、C反应蛋白、血清淀粉样蛋白A、唾液酸、球蛋白、胱抑素C、肌酸激酶、肌酸激酶同工酶、α羟丁酸脱氢酶、乳酸脱氢酶、乳酸脱氢酶同工酶、血清白蛋白等指标。结果危重组和非危重组性别、年龄差异无统计学意义(P>0.05),危重组和非危重组间中性粒细胞、血清淀粉样蛋白A、唾液酸、肌酸激酶同工酶、α羟丁酸脱氢酶、乳酸脱氢酶、乳酸脱氢酶同工酶、血清白蛋白差异均有统计学意义(P < 0.05~P < 0.01)。血糖、C反应蛋白、球蛋白、胱抑素C、肌酸激酶差异均无统计学意义(P>0.05)。糖尿病组和非糖尿病组性别、年龄差异无统计学意义(P>0.05),2组间血糖和血清白蛋白差异有统计学意义(P < 0.01和P < 0.05),2组间中性粒细胞、C反应蛋白、血清淀粉样蛋白A、唾液酸、球蛋白、胱抑素C、肌酸激酶、肌酸激酶同工酶、α羟丁酸脱氢酶、乳酸脱氢酶、乳酸脱氢酶同工酶差异均无统计学意义(P>0.05)。结论炎性指标中性粒细胞、血清淀粉样蛋白A、唾液酸和脏器损伤指标肌酸激酶同工酶、α羟丁酸脱氢酶、乳酸脱氢酶、乳酸脱氢酶同工酶等增高和营养指标血清白蛋白降低是危重病例的早期预测指标,高血糖所导致的营养状况降低对COVID-19的严重程度有重要影响。  相似文献   

5.
以某公路段养路工173人为接触组,机关行政人员40人为对照组,对血清过氧化脂质(LPO)、血清唾液酸(SA)及血清谷胱甘肽硫转移酶(GST)三项生物膜损伤指标进行了检测。结果:养路工血清SA及GST显著高于对照组(P<0.05,P<0.001),LPO未见明显改变。养路工不同工龄间的LPO、SA及GST测定,仅GST随工龄增加而增高(P<0.05)。不同性别间,仅GST男工高于女工(P<0.05)。吸烟对生物膜损伤指标未见明显影响。提示养路工在职业有害因素作用下,生物膜可受到一定损伤。  相似文献   

6.
目的:探讨锰暴露对机体脂质过氧化的影响。方法:选择84名锰焊作业人员及84名对照人员,测定其血清丙二醛(MDA)含量及超氧化物歧化酶(SOD)、谷胱甘肽过氧化物酶(GSH—Px)活性。结果:锰暴露组MDA含量高于对照组、血清SOD、GSH—Px活性低于对照组,差异有显著意义。MDA、SOD与作业场所空气锰呈现一定的剂量反应关系。结论:锰能使机体脂质过氧化增加、抗氧化能力下降。MDA、SOD可以作为锰中毒的早期敏感指标。  相似文献   

7.
孙岩  吕若谷  阙肖东  吕文伟 《吉林医学》2011,32(28):5861-5862
目的:观察蜂胶总黄酮对犬冠脉结扎急性心肌缺血模型血清生化指标的影响。方法:采用麻醉开胸犬结扎左冠状动脉前降支(LAD),制备急性心肌缺血模型,观察蜂胶总黄酮对磷酸肌酸激酶(CK)、乳酸脱氢酶(LDH)、游离脂肪酸(FFA)、过氧化脂质(LPO)、超氧化物歧化酶(SOD)、谷胱甘肽过氧化物(GSH-Px)的影响。结果:蜂胶总黄酮降低血清中CK、LDH的活性,降低血清中FFA、LPO含量,提高SOD、GSH-Px活性。结论:蜂胶总黄酮对实验性心肌缺血犬引起的脂质过氧化损伤具有保护作用。  相似文献   

8.
程献竹 《医学动物防制》2010,(3):238-238,240
目的探讨电焊作业对接触人员脂质过氧化及体液免疫水平的影响。方法对67名电焊作业人员(接触组)及56名不接触有害因素的人员(对照组)测定血清中超氧化物歧化酶(SOD)活性、谷胱甘肽过氧化物酶(GSH-PX)活性、血清丙二醛(MDA)含量、血清IgG、IgA、IgM含量。结果接触组血清SOD活性、GSH-PX活性,明显低于对照组,差别有显著意义(P0.05);而血清MDA含量,接触组高于对照组,差别有显著意义(P0.01);血清IgG、IgA含量,接触组低于对照组,差别有显著意义(P0.01)。结论以锰化合物为主的电焊烟尘可导致接触者体内脂质过氧化水平的增高及体内抗氧化能力下降,并能降低机体的体液免疫水平。  相似文献   

9.
本文观察了槲皮素对大鼠垂体后叶素所致的心肌缺血后血清和心肌组织中过氧化脂质产物-丙二醛(MDA)的含量以及血清中乳酸脱氢酶(SLDH)和a-羟丁酸脱氧酶(SHBD)活性四项生化指标的影响,结果发现腹腔注射槲皮素的实验组此四项生化指标均显著低于对照组(P<O.O1),表明槲皮素对心肌缺血有防治作用。  相似文献   

10.
作者测定了79名矽尘作业工人和82名对照组工人血清脂质过氧化代谢产物丙二醛(MDA)的含量,结果是矽尘作业组(5.866±1.872μmol/L)显著高于健康对照组(4.792±1.634μmol/L),并随接尘工龄的延长而明显增加。因此认为矽尘作业工人机体脂质过氧化反应呈现活跃状态,参与了二氧化硅引发的肺纤维形成的病理过程,因此给接尘工人采用抗氧化剂如维生素E等进行预防性投药,抑制机体脂质过氧化反应,有可能延长矽肺的发病工龄,为矽肺的预防开辟一条新途径。  相似文献   

11.
采用大蒜对焦炉工在不脱离生产情况下,进行为期半年的实验服用,观察其对生物膜损伤和细胞免疫功能的保护作用。结果表明:服用大蒜制剂后焦炉工的唾液酸(SA)和脂质过氧化(LPO)比服用前降低(P<0.01),谷胱甘肽过氧化物酶(GSH-Px)有所增高,但P>0.05,在细胞免疫方面,表现为酸性α-醋酸萘酯酶(ANAE)和活性E-花环%(Ea)的增高(P<0.01)。对照组的细胞免疫功能及生物膜损伤情况均无改善,提示:大蒜对焦炉工的生物膜和细胞免疫均有一定的保护作用。  相似文献   

12.
对长期(1~10年以上)接触酚的工人进行尿酚及尿酶测定,发现其尿酚排泄量显著高于对照组:同时其尿酶(γ-谷氨酰转移酶、乳酸脱氢酶、亮氨酸氨基肽酶、硷性磷酸酶、)活力也都显著高于对照组,但通常的肾功能试验都无明显改变。此外,接触组的尿酶活力也都高于各自的血清酶活力,可见多数尿酶的增高并非来自血清酶。  相似文献   

13.
The objective of this paper was to determine different patterns of Lactate Dehydrogenase(LD) isoenzymes in serum, pleural effusions and ascitic fluid collections and their usefulness in the differential diagnosis of malignant and non-malignant diseases. It was a case control study carried out at the Lagos University Teaching Hospital. Forty- six patients with pleural or ascitic fluid collection (male and female, age range between 18 and 65 years) made up of Twenty-two patients with malignant diseases and twenty-four with non- malignant diseases were recruited. Control group comprised 50 apparently healthy subjects of both sexes with age ranging between 18 and 65 years. Serum, pleural and ascitic fluid collections were assayed for total lactate dehydrogenase(LD) and it s isoenzymes. Total LD was estimated using the pyruvate to lactate reaction. LD isoenzyme analysis was estimated by cellulose acetate electrophoresis and stained with formazan. The mean total serum LD activity in the disease groups (malignant and non-malignant) was significantly higher than the mean total serum LD activity in the control group. The pleural fluid LD was highest in patients with empyema thoracis. Five isoenzymes of LD (LD1 - LD5) were present in both control and patient sera. The serum LD1 and LD2 isoenzymes were predominant in the controls. The serum LD4 and LD5 isoenzymes were predominant in the disease groups (malignant and non-malignant). LD4 and LD5 were the predominant isoenzymes in both pleural and ascitic fluids obtained in malignant and non-malignant diseases. Serum LD4 was significantly higher than serum LD5 in non-malignant disease while serum LD5 was significantly higher than serum LD4 in malignant disease. The types of malignancies could not be differentiated by serum and effusion fluid LD isoenzyme pattern. Pleural fluid total LD estimation is useful in monitoring patients on chest tubes and may be used to determine when to insert them. Serum LD4 and LD5 differentiates malignant from non-malignant disease but the effusion LD isoenzyme pattern does not.  相似文献   

14.
目的探索茶多酚(TP)在对抗石英粉尘氧化损伤中的作用,为石英粉尘毒作用的预防和控制工作提供参考。方法以外周静脉血红细胞膜谷胱甘肽过氧化物酶(GSH-px)活力、丙二醛(MDA)含量以及超氧化物歧化酶(T-SOD)活力为评价指标,以整群抽样法抽取接触石英粉尘的陶瓷厂健康一线接尘人员107名,抽取厂矿周围居民健康志愿者45名,分别采集静脉血2ml,检测两组人群在利用TP干预前后,红细胞膜SOD活力、MDA含量及GSH-px活力的变化。谷胱甘肽过氧化物酶(GSH-px)活力测定采用二硝基苯甲酸法,丙二醛(MDA)含量测定采用硫代巴比妥法(TBA法),超氧化物歧化酶(T-SOD)活力测定采用黄嘌呤氧化酶法,膜蛋白含量的测定采用考马斯亮蓝法。结果在TP干预后,接尘组人员红细胞膜SOD活力明显回升(P<0·05),MDA含量明显降低(P<0·05),GSH-px活力明显回升(P<0·05),在非接尘组人员中,SOD活力、MDA含量及GSH-px活力三指标变化不明显(P>0·05)。结论TP具有抗石英粉尘所致人红细胞膜脂质过氧化损伤作用。  相似文献   

15.
Abnormalities in the metabolism of carbohydrates, lipids and proteins are well documented in chronic renal failure (CRF). We have studied the extent of glycosylation and sialylation of serum proteins and also the levels of lipid-bound sialic acids in nondiabetic patients with CRF maintained on haemodialysis. The total neutral sugar content (TNS) and the non-enzymatic glycosylation (NEG) of serum proteins, the protein-bound sialic acids (PSA) and the lipid-bound sialic acids (LSA) were found to be significantly elevated in the patients as compared to a group of healthy controls. A single dialysis therapy produced some alterations in these measurements. The TNS correlated significantly with the NEG and also with the PSA. No correlation existed between total lipids. None of these measurements, however, correlated with the serum creatinine values. The established as well as putative pathophysiological consequences of these findings are discussed.  相似文献   

16.
Objective To investigate the antagonistic effects of different doses of Lianhua Qingwen on pulmonary injury induced by fine particulates PM2.5 in rats.
Methods Fine particulates suspended in the environment were collected. Forty-eight healthy adult wistar rats were randomly divided into 6 groups with 8 rats in each group. Four groups of rats were exposed to PM2.5 by intratracheally dripping suspensions of fine particulates PM2.5 (7.5 mg/kg)as dust-exposed model rats. Among them 24 rats in three groups received Lianhua Qingwen treatment (crude drug) at a dose of 2 g/kg, 4 g/kg, 8 g/kg per day for 3 daysbefore dust exposure and were defined as low-dose, middle-dose and high-dose Lianhua Qingwen treatment groups respectively. The other dust-exposed model rats without treatment were assigned as PM2.5 control group. The un-exposed rats were set as saline control group (1.5 ml/kg saline) and blank control group. All rats were killed after 24 hours of the exposure. Lung tissue, serum and bronchoalveolar lavage fluid (BALF) were collected. The levels of malonaldehyde (MDA), lactate dehydrogenase (LDH), and glutathione peroxidase (GSH-PX) in blood serum and BALF, and superoxide dismutase (SOD) in blood surum were measured using fluorescent quantitation PCR; Expression of NF-E2-related factor 2(NRF-2), heme oxygenase 1 (HO-1) and quinone oxidoreductase 1 (NQO1) in lung tissues were measured using Western blot. Pathological changes of lung tissues in each group were also examined.
Results Pathology revealed thickened alveolar septum, congestion of capillary, interstitial edema and infiltration of lymphocyte and neutrophil surrounding bronchiole in the PM2.5 control group, which were significantly relieved in the Lianhua Qingwen treatment groups. Compared to the blank and saline control groups, the PM2.5 control group had significantly higher levels of LDH and MDA (p<0.01) and lower level of GSH-PS (p<0.01) in BALF, significantly higher levels of LDH and MDA (p<0.05) and lower level of GSH-PS (p<0.05) in rat serum. The levels of MDA in blood serum and BALF were significantly lower in each treatment group than that in PM2.5 control group (allP<0.05). In both middle-dose and high-dose treatment group the measurements of LDH in serum and BALF as well as GSH-PX in serum were significant difference from those of PM2.5 control group (allP<0.05). Expressions of NRF-2, HO-1 and NQO1 in lung tissues were significantly different among middle-dose and high-dose treatment group compared with those in PM2.5 control group (allP<0.05).
Conclusion Fine particulates PM2.5 in environment may induce pulmonary oxidative lesions in rats. Middle-dose and high-dose Lianhua Qingwen has antagonist effece on the injuries induced by fine particulates.  相似文献   

17.
血清胆汁酸谱在肝病鉴别诊断中的应用研究   总被引:2,自引:0,他引:2  
为探索血清胆汁酸谱在各种肝病中的特异性,用气相色谱法观察了黑索金、氯乙烯职业接触者及急性黄疸型肝炎、慢性活动型肝炎、肝硬化、肝癌等患者血清胆汁酸的变化情况。结果发现2种亲肝性毒物致肝损害时胆汁酸变化不同,黑索金接触者血清鹅脱氧胆酸、脱氧胆酸、石胆酸水平升高,与对照组比较有显著性差异;氯乙烯接触者则只有DCA、LCA水平升高。(P〈0.001,P〈0.0005),其变化主要集中在次级胆汁酸上,急性黄  相似文献   

18.
给SD大鼠饮用含氟、硒、及氟加硒的水溶液8周,观察硒对氟致肾损害的影响。结果表明氟可使肾脏脂质过氧化物含量明显增加,肾近曲小管上皮细胞变性、坏死,线粒体数目增多,线粒体嵴减少,基底膜局部增厚,并可使肾近曲小管上皮细胞的琥珀酸脱氢酶(SDH)和碱性磷酸酶(ALP)活性明显降低,乳酸脱氢酶(LDH)和酸性磷酸酶(ACP)活性明显增高。补硒后则可促进肾脏的氟排泄,降低肾脏脂质过氧化物含量,肾脏的组织病理学和超微结构改变明显减轻,SDH活性增加,ACP活性降低。结果提示,硒对氟导致的肾损害具有明显的拮抗作用。  相似文献   

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