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长链非编码RNA alpha-2-巨球蛋白反义RNA 1靶向微小RNA-106b-5p调控氧化型低密度脂蛋白诱导的人脑微血管内皮细胞损伤
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作者 李薇 王丽 +2 位作者 汪志华 刘庆春 韩荣胜 《解剖学报》 CAS CSCD 北大核心 2023年第3期319-327,共9页
目的探讨长链非编码RNA(lncRNA)alpha-2-巨球蛋白反义RNA 1(A2M-AS1)靶向微小RNA(miR)-106b-5p对氧化型低密度脂蛋白(ox-LDL)诱导的人脑微血管内皮细胞损伤的影响。方法用ox-LDL诱导人脑微血管内皮细胞设为ox-LDL组,正常培养细胞为对照(... 目的探讨长链非编码RNA(lncRNA)alpha-2-巨球蛋白反义RNA 1(A2M-AS1)靶向微小RNA(miR)-106b-5p对氧化型低密度脂蛋白(ox-LDL)诱导的人脑微血管内皮细胞损伤的影响。方法用ox-LDL诱导人脑微血管内皮细胞设为ox-LDL组,正常培养细胞为对照(Ctrl)组;A2M-AS1过表达(pcDNA-A2M-AS1组)、空载体(pcDNA组)、miR-106b-5p抑制剂(anti-miR-106b-5p组)、阴性对照(anti-miR-NC组)、pcDNA-A2M-AS1与对照mimic NC(miR-NC组)、pcDNA-A2M-AS1与miR-106b-5p模拟物(miR-106b-5p mimics组)转染细胞后加ox-LDL处理,n=9;Real-time PCR检测A2M-AS1与miR-106b-5p表达;试剂盒检测丙二醛(MDA)、超氧化物歧化酶(SOD)和过氧化氢酶(CAT)水平;流式细胞术及TUNEL法检测细胞凋亡;双荧光素酶报告基因实验检测A2M-AS1与miR-106b-5p靶向关系;Western blotting检测Bcl-2和Bax蛋白表达量。结果与Ctrl组比较,ox-LDL组A2M-AS1表达水平、SOD和CAT活性、Bcl-2蛋白水平降低,miR-106b-5p表达水平、MDA水平、凋亡率、Bax蛋白水平升高(P<0.05);过表达A2M-AS1或干扰miR-106b-5p降低ox-LDL诱导细胞后MDA水平、凋亡率与Bax蛋白水平,升高SOD、CAT活性和Bcl-2蛋白水平(P<0.05);A2M-AS1靶向miR-106b-5p;上调miR-106b-5p逆转过表达lncRNA A2M-AS1对ox-LDL诱导的人脑微血管内皮细胞损伤的作用。结论A2M-AS1通过靶向miR-106b-5p减轻ox-LDL诱导的人脑微血管内皮细胞损伤。 展开更多
关键词 长链非编码RNA alpha-2-巨球蛋白反义RNA 1 微小RNA-106b-5p 氧化型低密度脂蛋白 氧化应激 实时定量聚合酶链反应 流式细胞术 人脑微血管内皮细胞
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Study of the Effect of Zhuang Medicine Aponeurotic System Triple Therapy on Lumbar Disc Herniation and Alpha-1 Acid Glycoprotein Level
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作者 Yun Zhang Yuying Lan Yingcai Wei 《Journal of Clinical and Nursing Research》 2023年第2期92-99,共8页
Objective:To analyze the application effect of Zhuang medicine aponeurotic system triple therapy in the treatment of lumbar disc herniation and its effect on the level of alpha-1 acid glycoprotein(alpha-1 AGP).Methods... Objective:To analyze the application effect of Zhuang medicine aponeurotic system triple therapy in the treatment of lumbar disc herniation and its effect on the level of alpha-1 acid glycoprotein(alpha-1 AGP).Methods:200 patients with lumbar disc herniation were selected and randomly divided into a treatment group and a control group,100 cases in each group.The control group was given conventional acupuncture,and the treatment group was treated with manipulation+fire needling+cupping.The alpha-1-AGP levels before and after treatment,as well as the lumbar spine function and pain scores before and after treatment,and the adverse reactions occurred during treatment between the two groups were compared.Results:Before treatment,there was no significant difference in alpha-1 AGP levels,lumbar function,and pain scores between the two groups(P>0.05).After treatment,the lumbar function scores of the two groups were significantly increased,with the treatment group having higher scores than the control group(P<0.05);the incidence of adverse reactions in the treatment group was 2.00%,which was much lower than the control group(P>0.05).Conclusion:Appropriate application of Zhuang medicine aponeurotic system triple therapy in the clinical treatment of lumbar disc herniation can promote the improvement of alpha-1 AGP index level,reduce the pain degree of patients,and improve their lumbar spine function.At the same time,Zhuang medicine also has significant advantages in terms of safety,while ensuring the efficacy and safety of the treatment. 展开更多
关键词 Zhuang medicine aponeurotic system triple therapy Lumbar disc herniation Application effect alpha-1 acid glycoprotein
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Alpha-黑素细胞刺激素对内毒素血症小鼠肝肺组织表达高迁移率族蛋白1的抑制作用 被引量:3
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作者 武文 朱玉珍 +1 位作者 韩德平 田野苹 《中国急救医学》 CAS CSCD 北大核心 2008年第5期426-429,共4页
目的研究Alpha-黑素细胞刺激素(α-MSH)对内毒素血症小鼠肝、肺组织中表达高迁移率族蛋白1(HMGB1)的调控作用。方法腹腔内注射(ip)LPS(25g/kg)和D-Gal(100mg/kg)建立内毒素血症小鼠模型,分别在LPS刺激小鼠1、2、3h后腹腔注射α-MSH(2.5m... 目的研究Alpha-黑素细胞刺激素(α-MSH)对内毒素血症小鼠肝、肺组织中表达高迁移率族蛋白1(HMGB1)的调控作用。方法腹腔内注射(ip)LPS(25g/kg)和D-Gal(100mg/kg)建立内毒素血症小鼠模型,分别在LPS刺激小鼠1、2、3h后腹腔注射α-MSH(2.5mg/kg),24h后处死小鼠,取小鼠肺、脑、脾、肝、肾组织,应用RT-PCR和Westernblot的方法,从基因、蛋白两个水平检测α-MSH对HMGB1表达的调节作用。结果HMGB1mRNA及蛋白在内毒素血症小鼠肺、脑、脾、肝、肾中均有表达,但在肝、肺中的表达量高于其他组织;于LPS刺激小鼠3h之内腹腔注射α-MSH,能显著下调HMGB1mRNA及蛋白的表达,并且1h之内给药效果最理想。结论α-MSH能有效抑制内毒素血症小鼠肝、肺组织中HMGB1的表达。 展开更多
关键词 alpha-黑素细胞刺激素 高迁移率族蛋白1 内毒素血症
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Delayed diagnosis of alpha-1-antitrypsin deficiency following post-hepatectomy liver failure: A case report 被引量:3
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作者 Benjamin Norton Jemimah Denson +3 位作者 Christopher Briggs Matthew Bowles David Stell Somaiah Aroori 《World Journal of Gastroenterology》 SCIE CAS 2016年第11期3289-3295,共7页
Post-hepatectomy liver failure(PHLF) is a leading cause of morbidity and mortality following major liver resection. The development of PHLF is dependent on the volume of the remaining liver tissue and hepatocyte funct... Post-hepatectomy liver failure(PHLF) is a leading cause of morbidity and mortality following major liver resection. The development of PHLF is dependent on the volume of the remaining liver tissue and hepatocyte function. Without effective pre-operative assessment, patients with undiagnosed liver disease could be at increased risk of PHLF. We report a case of a 60-year-old male patient with PHLF secondary to undiagnosed alpha-1-antitrypsin deficiency(AATD) following major liver resection. He initially presented with acute large bowel obstruction secondary to a colorectal adenocarcinoma, which had metastasized to the liver. There was no significant past medical history apart from mild chronic obstructive pulmonary disease. After colonic surgery and liver directed neo-adjuvant chemotherapy, he underwent a laparoscopic partially extended right hepatectomy and radio-frequency ablation. Post-operatively he developed PHLF. The cause of PHLF remained unknown, prompting reanalysis of the histology, which showed evidence of AATD. He subsequently developed progressive liver dysfunction, portal hypertension, and eventually an extensive parastomal bleed, which led to his death; this was ultimately due to a combination of AATD and chemotherapy. This case highlights that formal testing for AATD in all patients with a known history of chronic obstructive pulmonary disease, heavy smoking, or strong family history could help prevent the development of PHLF in patients undergoing major liver resection. 展开更多
关键词 Post-hepatectomy LIVER failure alpha-1-antitrypsin DEFICIENCY HEPATECTOMY Functional LIVER remnant L
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Alpha-1 antitrypsin deficiency and the risk of hepatocellular carcinoma in end-stage liver disease 被引量:3
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作者 Clara Antoury Rocio Lopez +2 位作者 Nizar Zein James K Stoller Naim Alkhouri 《World Journal of Hepatology》 CAS 2015年第10期1427-1432,共6页
AIM:To evaluate the association between alpha-1 antitrypsin deficiency(A1ATD) and hepatocellular carcinoma(HCC) in patients with end-stage liver disease(ESLD).METHODS:Patients with cirrhosis and ESLD referred to the C... AIM:To evaluate the association between alpha-1 antitrypsin deficiency(A1ATD) and hepatocellular carcinoma(HCC) in patients with end-stage liver disease(ESLD).METHODS:Patients with cirrhosis and ESLD referred to the Cleveland Clinic Foundation for liver transplantation between 2003 and 2014 were included in the study(N = 675). ESLD was defined as having histological features of cirrhosis and/or radiological evidence of cirrhosis in the context of portal hypertension(ascites,variceal bleeding,thrombocytopenia,or hepatic encephalopathy). A1 ATD was diagnosed using phenotype characterization(MZ or ZZ),liver biopsy detection of PAS-positive diastaseresistant(PAS+) globules,or both. Patients with other causes of liver diseases such as hepatitis C virus(HCV),alcoholic liver disease and non-alcoholic steatohepatitis(NASH) or NASH were also included in the study. HCC was diagnosed by using imaging modalities,biopsy findings,or explanted liver inspection. Follow-up time was defined as the number of years from the diagnosis of cirrhosis to the diagnosis of hepatocellular carcinoma,or from the diagnosis of cirrhosis to the last follow up visit. The rate of HCC was assessed using time-tointerval analysis for interval censored data.RESULTS:This study included 675 patients. 7% of subjects had A1ATD(n = 47). Out of all subjects who did not have A1 ATD,46% had HCV,17% had alcoholic liver disease,19% had NASH and 18% had another primary diagnosis. Of the 47 subjects with A1 ATD,15 had a primary diagnosis of A1ATD(PI*ZZ phenotype and PAS+ globules),8 had a PI*MZ phenotype alone,14 had PAS+ alone,and 10 had both the PI*MZ phenotype and PAS+. Median follow-up time was 3.4(25th,75 th percentiles:1,5.2) years. The overall rate of hepatocellular carcinoma in all subjects was 29%(n = 199). In the A1 ATD group,the incidence rate of HCC was 8.5% compared to 31% in the group of patients with other causes of cirrhosis(P = 0.001). Patients with ESLD due to A1 ATD had the lowest yearly cumulative rate of hepatocellular carcinoma at 0.88% per year compared to 2.7% for those with HCV cirrhosis,1.5% in patients with NASH and 0.9% in alcohol-induced liver disease(P < 0.001).CONCLUSION:Within this group of patients with ESLD,there was no significant association between A1 ATD and increased risk of HCC. 展开更多
关键词 Hepatocellular carcinoma LIVER CIRRHOSIS END-STAGE LIVER disease Hepatitis C virus alpha-1antitrypsin DEFICIENCY
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DETECTION OF ALPHA-1 ANTICHYMOTRYPSIN IN HEPATOCELLULAR CARCINOMA TISSUE
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作者 荆雪枫 于佩良 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 1991年第3期56-59,共4页
One hundred and fifty-three consecutive cases of HCC and 25 controls from autopsy material were studied by immunohistochemical method in this paper. A review of the histopathology and demonstration of AFP, alpha- 1-an... One hundred and fifty-three consecutive cases of HCC and 25 controls from autopsy material were studied by immunohistochemical method in this paper. A review of the histopathology and demonstration of AFP, alpha- 1-antichymotrypsin (AACT), alpha 1-antitrypsin (AAT) and CEA were made.Among the tumor markers. AACT yielded the highest positive rate, 109 cases (71%) out of 153 HCC. CEA was the next, 95 cases (62%) .AFP and AAT gave the same result, 72 cases (47%) . AACT, AAT and CEA were not found in the controls. AFP was present in a few hepatocytes in 1 of 25 controls. The results were in keeping with serum tests so far as the highest positive rate being AACT was concerned. Therefore, combined determination of AACT and AFP would seem a better screening method than by that of AFP alone for survey of HCC. 展开更多
关键词 alpha fetal protein alpha- 1-antichymotrypsin alpha-1-antitrypsin hepatoma.
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On the Activities of Pancreatic Proteases and Alpha-1 Proteinase Inhibitor in Meat-Type Chicken
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作者 Vladimir G. Vertiprakhov Alena A. Grozina +3 位作者 Ivan A. Egorov Tatiana N. Lenkova Vardges A. Manukyan Tatiana A. Egorova 《Open Journal of Animal Sciences》 2017年第3期289-296,共8页
The study was aimed at the evaluation of the effects of breed, age, different digestion stimulators, and dietary crude protein (CP) level on the activities of proteolytic enzymes in pancreatic tissue and duodenal chym... The study was aimed at the evaluation of the effects of breed, age, different digestion stimulators, and dietary crude protein (CP) level on the activities of proteolytic enzymes in pancreatic tissue and duodenal chymus (in vivo), serum trypsin and α1-proteinase inhibitor (A1PI) concentrations in meat-type chicks. The study of age dynamics of trypsin and A1PI concentrations was performed on the chicks of hybrid cross “Smena-8”and two parental lines (Plymouth Rock and Cornish) fed standard commercial corn-wheat-SBM diets. Twenty birds per breed were euthanized at 1, 7, 14, 21, 28 and 35 days of age to obtain blood samples and pancreatic homogenate. Experiments on the effects of different digestion promotors (probiotic, acidifier, phytobiotic, enzymatic preparation) and different CP levels (finisher diet, CP 20%, vs. ground corn, CP 8.5%) were performed on 12 hybrid chicks with fistulated duodenum from 14 to 50 days of age. The following conclusions were made: 1) At 1 day of age high proteolytic activity in pancreatic tissue and maximal serum concentrations of trypsin and A1PI were found in both hybrid and parental lines. Since 7 to 35 days of age A1PI concentration was nearly constant, serum trypsin concentration decreased while proteolytic activity in pancreatic tissue exhibited undulate increase;2) Proteolytic activity in pancreatic tissue was higher in hybrids compared to the parental lines from 7 to 35 days of age (p 0.05);3) Supplementation of diet with exogenous enzymes stimulated the digestion due to the increase in protease activity in duodenal chymus by 9.1% compared to unsupplemented control (p 0.05);4) Proteolytic activity in duodenal chymus significantly responded to the substitution of ground corn for the complete diet by 2-fold decrease while serum trypsin concentration responded by 2.5-fold increase (p 0.001). This fact can indicate that physiological functions of digestive proteases are not confined to the digestive processes. 展开更多
关键词 CHICKS Pancreas TRYPSIN alpha-1 PROTEINASE Inhibitor (Antitrypsin) Serum DUODENAL Fluid
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IMMUNOHISTOCHEMICAL STUDY OF ALPHA-1-ANTICHYMOTRYPSIN IN GLIOMA
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作者 李青 王文亮 刘彦仿 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 1989年第3期42-45,共4页
GFAP is a specific antigen of glial element, but Alpha-1-antichymotrypsin has not been reported in the literature. Alpha-1-antichymotrypsin was guided by GFAP using PAP method to the astrocytes of 137 gliomas. 120 (87... GFAP is a specific antigen of glial element, but Alpha-1-antichymotrypsin has not been reported in the literature. Alpha-1-antichymotrypsin was guided by GFAP using PAP method to the astrocytes of 137 gliomas. 120 (87%) gliomas were positive for Alpha-1-antichymotrypsin. Of these 120 gliomas, 86 (72%) gave diffuse distribution, 17 (14%) gave focal distribution, and 17 (14%) gave scattered distributions. Alpha-1-antichymotrypsin in glioma tissue may be an important tumor marker for diagnosis. 展开更多
关键词 GFAP IMMUNOHISTOCHEMICAL STUDY OF alpha-1-ANTICHYMOTRYPSIN IN GLIOMA
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Cervical Length Estimation and Cervicovaginal Fluid for Placental <i>α</i>-Microglobulin 1 Testing to Screen Women Had Threatened Preterm Labor for Time till Spontaneous Labor
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作者 Mohamed Kandil Abdelhaseib Salah Saad Alaa Masood 《Advances in Reproductive Sciences》 2020年第1期57-70,共14页
Objectives: Evaluation of diagnostic performance of rapid testing of cervico-vaginal fluid (CVF) for fetal fibronectin (FFN) and placental α-microglobulin 1 (PAMG-1) as screening of women presented by threatened pret... Objectives: Evaluation of diagnostic performance of rapid testing of cervico-vaginal fluid (CVF) for fetal fibronectin (FFN) and placental α-microglobulin 1 (PAMG-1) as screening of women presented by threatened preterm labor (TPTL) with intact membranes for duration till getting spontaneous labor (SL). Patients & Methods: 37 women presenting with TPTL underwent CVF samplings before digital examination and then underwent transvaginal ultrasonography for estimation of cervical length (CL). All women received fluid and anxiolytic therapy and if uterine contractions persisted, all had received tocolytic therapy with oral nifedipine or intravenous magnesium sulphate according to requirements. Incidence of SL within Results: Incidence of SL was 13.5%, 35.2% and 51.3% within 48-hr, 2 - 7 and 7 - 14 days, respectively. Duration till labor after sampling was positively correlated with CL, while was negatively correlated with positive FFN and PAMG-1 tests. Positive FFN test had high specificity, while positive PAMG-1 test had high sensitivity for labor within 7 days. Regression analysis defined short CL and positive PAMG-1 test as significant predictors for short duration till SL. ROC curve analysis defined short cervix and positive PAMG-1 test as significant predictors for labor within 48-hr and within 2 - 7 days respectively and combined negative PAMG-1 test and CL of 20 - 25 mm were significant predictors for labor within 7 - 14 days. Conclusion: PAMG-1 test had high specificity, if positive, for predicting SL and high NPP, if negative, for excluding labor within 7 days, so it can be used as rapid adjuvant to clinical evaluation to help management decision-making. Moreover, PAMG-1 test is recommended screening test for being easy-to-use bedside test, provides rapid results, can be used after vaginal exam and coitus and does not require a speculum examination or specialized equipment to analyze results. 展开更多
关键词 THREATENED Preterm LABOR Cervico-Vaginal Fluid Fetal Fibronectin PLACENTAL α-microglobulin 1 Screening Spontaneous LABOR
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Managing panniculitis in alpha-1 antitrypsin deficiency: Systematic review of evidence behind treatment
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作者 Donah K Sabbagh Behrad Barmayehvar +2 位作者 Thanh Nguyen Ross G Edgar Alice M Turner 《World Journal of Dermatology》 2018年第1期1-8,共8页
AIM To systematically review literature for management of alpha-1 antitrypsin deficiency(AATD) panniculitis. METHODS Multiple databases were searched using combinations of pertinent terms. Articles were selected descr... AIM To systematically review literature for management of alpha-1 antitrypsin deficiency(AATD) panniculitis. METHODS Multiple databases were searched using combinations of pertinent terms. Articles were selected describing panniculitis treatment in patients with AAT < 11 μmol and/or PiZZ genotype, with no language limitation. All relevant articles were accessed in full text. Independent review of abstracts and full manuscripts was conducted by 2 reviewers, and quality assessment by one reviewer(checked by a second). Data extraction was conducted byone reviewer(checked by a second). Narrative synthesis only was conducted, as data were unsuitable for metaanalysis.RESULTS Thirty-two case reports and 4 case series were found. Augmentation therapy(infusions of plasma-derived AAT) was the most successful, with complete resolution of symptoms in all patients. Dapsone is a less expensive option, and it achieved clinical resolution in 62% of patients, but it is very poorly tolerated. Among other single-agent antibiotics, doxycycline was the most successful with complete clinical resolution seen in 33% of patients. Immunosuppressants were largely unsuccessful; 80% of patients exhibited no response. Liver transplantation and therapeutic plasma exchange displayed complete resolution in 66% of patients. Other strategies, such as non-steroidal anti-inflammatory drugs or antibiotics other than dapsone did not show sufficient response rates to recommend their use. Authors note the risk of bias imposed by the type of evidence(case reports, case series) available in this field.CONCLUSION Dapsone is the recommended first line therapy for AATD panniculitis, followed by augmentation therapy. Plasma exchange may be an alternative in the setting of rapidly progressive disease. 展开更多
关键词 alpha-1 ANTITRYPSIN DEFICIENCY Dermatological TREATMENT PANNICULITIS DAPSONE Augmentation therapy
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SlimQuick ^_(TM)-associated hepatotoxicity in a woman with alpha-1 antitrypsin heterozygosity
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作者 Douglas H Weinstein William S Twaddell +2 位作者 Jean-Pierre Raufman Benjamin Philosophe Ayse L Mindikoglu 《World Journal of Hepatology》 2012年第4期154-157,共4页
Green tea (Camellia sinensis)-associated hepatotoxicity is reported. However, the presence of alpha-1 antitrypsin MZ phenotype as a predisposing factor to green tea-associated drug-induced liver injury (DILI) is unkno... Green tea (Camellia sinensis)-associated hepatotoxicity is reported. However, the presence of alpha-1 antitrypsin MZ phenotype as a predisposing factor to green tea-associated drug-induced liver injury (DILI) is unknown. A previously healthy woman with alpha-1 antitrypsin MZ phenotype who took SlimQuick?, an herbal supplement containing green tea extract, developed severe hepatotoxicity requiring corticosteroid treatment. Green tea-associated hepatotoxicity is reviewed and alpha-1 antitrypsin MZ phenotype as a predisposing factor to green tea-associated DILI is discussed. Liver biopsy demonstrated marked inflammation with necrosis suggestive of toxic injury with diffuse alpha-1 antitrypsin globule deposition on immunostaining. Corticosteroid therapy resulted in rapid clinical improvement. Alpha-1 antitrypsin MZ phenotype may increase vulnerability to herbal hepatotoxicity. 展开更多
关键词 SlimQuick ^_(TM) Green tea HEPATOTOXICITY Drug-induced liver injury alpha-1-antitrypsin MZ phenotype
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慢性乙型肝炎患者血清α1微球蛋白检测的临床意义 被引量:5
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作者 魏雁虹 宋帅 +2 位作者 耿辉 刁斌斌 杨广民 《吉林大学学报(医学版)》 CAS CSCD 北大核心 2017年第1期96-100,共5页
目的:检测不同肝功能损伤情况下慢性乙型肝炎(CHB)患者血清α1微球蛋白(α1-MG)的水平,探讨采用α1-MG评价CHB患者肝功能的临床意义。方法:243例CHB患者分为肝肾功能正常组(n=94)、肝功能正常肾功能异常组(n=20)、肝功能异常肾功能正常... 目的:检测不同肝功能损伤情况下慢性乙型肝炎(CHB)患者血清α1微球蛋白(α1-MG)的水平,探讨采用α1-MG评价CHB患者肝功能的临床意义。方法:243例CHB患者分为肝肾功能正常组(n=94)、肝功能正常肾功能异常组(n=20)、肝功能异常肾功能正常组(n=100)和肝肾功能异常组(n=29),同时选取健康体检者67人作为对照组,测定各组受试者血清α1-MG水平,同时测定谷氨酸氨基转移酶(ALT)、天冬氨酸氨基转移酶(AST)和碱性磷酸酶(ALP)等肝功能指标及血清肌酐(CREA)、尿素氮(BUN)等肾功能指标。采用免疫比浊法检测α1-MG水平,采用紫外-乳酸脱氢酶法检测ALT水平,采用紫外-苹果酸脱氢酶法检测AST水平,采用AMP缓冲液法检测ALP水平,采用肌氨酸氧化酶法检测CREA水平,采用紫外-谷氨酸脱氢酶法检测BUN水平。结果:与对照组比较,肝功能异常肾功能正常组患者血清α1-MG水平明显降低(P<0.05),肝肾功能正常组和肝肾功能异常组患者血清α1-MG水平无明显变化(P>0.05),肝功能正常肾功能异常组患者血清α1-MG水平明显升高(P<0.01)。按照α1-MG<10mg·L^(-1)为判断肝功能异常的标准,肝功能异常肾功能正常组患者血清ɑ1-MG阳性率为36%,肝肾功能异常组患者血清α1-MG阳性率为24%;如以α1-MG<15mg·L^(-1)为标准,则肝功能异常肾功能正常组患者血清α1-MG阳性率为68%。肝功能异常肾功能正常组患者血清α1-MG水平与肝功能指标ALT、AST和ALP呈负相关关系(r=-0.934,r=-0.916,r=-0.847,P<0.01),且其数值随着肝损伤程度的加重而降低。结论:α1-MG检测在判断CHB患者肝功能方面具有一定的临床意义,但须排除肾功能损害引起的结果干扰。 展开更多
关键词 ɑ1微球蛋白 肝炎 乙型 血清学检测 肝功能 肾功能
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尿α_1-MG和尿NAG与肾小管间质病理变化的关系 被引量:16
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作者 吴伟岚 卫敏江 +3 位作者 陈敏怡 陈难 苏宛华 陈妍 《上海第二医科大学学报》 CSCD 2004年第5期357-358,392,共3页
目的 探讨尿α1-微球蛋白(α1-MG)、尿N-乙酰-β-D-葡萄糖苷酶(NAG)与肾小管间质病理变化的关系。方法 1999年1月-2003年2月间因各种肾脏疾病收治入院行肾穿刺活检术的患儿142例,采用散射比浊法和尿手工比色法分别测定尿α1-MG和尿NAG,... 目的 探讨尿α1-微球蛋白(α1-MG)、尿N-乙酰-β-D-葡萄糖苷酶(NAG)与肾小管间质病理变化的关系。方法 1999年1月-2003年2月间因各种肾脏疾病收治入院行肾穿刺活检术的患儿142例,采用散射比浊法和尿手工比色法分别测定尿α1-MG和尿NAG,分析其与肾小管间质病理变化的关系。结果 尿α1-MG、尿NAG水平与肾小管间质病变程度呈显著正相关(P<0.01)。结论 尿α1-MG和NAG可动态观察肾小管间质病变和临床治疗效果,以判断肾脏疾病的预后。 展开更多
关键词 尿Α1-微球蛋白 尿N-乙酰-β-D-葡萄糖苷酶 肾小管间质 病理学变化
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尿液α_1-微球蛋白测定对糖尿病肾病小管间质病变的诊断价值 被引量:6
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作者 王锋 高许萍 汪年松 《海南医学》 CAS 2011年第22期114-115,共2页
目的探讨尿液α1-微球蛋白测定对糖尿病肾病小管间质病变的诊断价值。方法选取糖尿病肾病患者60例,分为微量蛋白尿组、临床蛋白尿组、肾功能不全组,每组20例,并设正常对照组20例,分别进行血液生化与尿液α1-微球蛋白测定。结果微量蛋白... 目的探讨尿液α1-微球蛋白测定对糖尿病肾病小管间质病变的诊断价值。方法选取糖尿病肾病患者60例,分为微量蛋白尿组、临床蛋白尿组、肾功能不全组,每组20例,并设正常对照组20例,分别进行血液生化与尿液α1-微球蛋白测定。结果微量蛋白尿组、临床蛋白尿组、肾功能不全组的尿液α1-微球蛋白分别为(23.3±17.6)mg/24h,(41.9±22.8)mg/24h,(73.6±37.1)mg/24h,均高于对照组的(10.6±4.2)mg/24h,P均<0.01。而且尿液α1-微球蛋白与Scr呈正相关,相关系数为0.37,P<0.01。结论尿液α1-微球蛋白检测可用来判断糖尿病肾病的小管间质损害。 展开更多
关键词 尿液 Α1微球蛋白 小管间质损害 糖尿病肾病
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尿α_1-微球蛋白在新生儿窒息后肾损伤中的意义 被引量:7
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作者 董春晓 张立明 +1 位作者 张爱梅 孙学东 《临床合理用药杂志》 2010年第4期50-51,共2页
目的探讨尿α1-微球蛋白在新生儿窒息后肾功能损伤的意义。方法窒息新生儿58例按出生时Apgar评分分为轻度窒息组32例、重度窒息组26例;同期选择30例健康足月新生儿作为健康对照组。所有患儿在生后3d内采用酶联免疫吸附法(ELISA)检测尿... 目的探讨尿α1-微球蛋白在新生儿窒息后肾功能损伤的意义。方法窒息新生儿58例按出生时Apgar评分分为轻度窒息组32例、重度窒息组26例;同期选择30例健康足月新生儿作为健康对照组。所有患儿在生后3d内采用酶联免疫吸附法(ELISA)检测尿α1-微球蛋白(α1-MG)浓度,并与其血清尿素氮(BUN)、肌酐(Cr)水平进行对比。结果重度窒息组和轻度窒息组的BUN、Cr和尿α1-MG水平高于健康对照组,且重度窒息组BUN、Cr和尿α1-MG水平显著高于轻度窒息组,差异均有统计学意义(P<0.01)。轻度窒息组和重度窒息组尿α1-MG异常检出率均显著高于同组血清BUN和Cr异常检出率,差异均有统计学意义(P<0.05或P<0.01)。结论尿α1-MG是评价新生儿窒息后肾功能损害的敏感指标。 展开更多
关键词 新生儿 窒息 Α1-微球蛋白 肾损害
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儿童尿液α_1-微球蛋白检测的临床意义 被引量:3
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作者 刘检妤 冯蔼苓 高文英 《河北医药》 CAS 2001年第2期102-103,共2页
目的 为探讨尿液α1 微球蛋白在儿童某些疾病中的变化及其在肾脏疾病的诊断意义。方法 采用放免法 ,测定了 32例正常儿童的尿液α1 微球蛋白作为对照 ;检测患儿 12 2例 ,含肾疾患 2 1例 ,肺炎 31例 ,其它非肾脏损害病儿 2 7例 ,糖尿... 目的 为探讨尿液α1 微球蛋白在儿童某些疾病中的变化及其在肾脏疾病的诊断意义。方法 采用放免法 ,测定了 32例正常儿童的尿液α1 微球蛋白作为对照 ;检测患儿 12 2例 ,含肾疾患 2 1例 ,肺炎 31例 ,其它非肾脏损害病儿 2 7例 ,糖尿病 43例 ,同时检测了尿 β2 微球蛋白、α1 微球蛋白和微白蛋白 ,分别与正常对照组进行t检验分析。结果 肾疾患和肺炎组的尿α1 微球蛋白明显增高 ,差异有显著性。结论 尿α1 微球蛋白测定 ,可作为一种判定肾脏早期损伤的敏感指标。 展开更多
关键词 Α1-微球蛋白 尿液 儿童 检测
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人α1微球蛋白基因克隆及其在大肠杆菌中的高效表达 被引量:2
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作者 魏雁虹 耿辉 +2 位作者 宋帅 孟莹 杨广民 《中国医药》 2013年第11期1597-1600,共4页
目的构建人α1微球蛋白(α1-MG)基因的原核表达质粒,在大肠杆菌中表达、纯化,为制备仅。一MG诊断试剂中原料抗体、标准品及质控品奠定基础。方法从人胚胎肝脏中提取总RNA,利用反转录聚合酶链反应技术扩增α1-MG基因。然后克隆至PQ... 目的构建人α1微球蛋白(α1-MG)基因的原核表达质粒,在大肠杆菌中表达、纯化,为制备仅。一MG诊断试剂中原料抗体、标准品及质控品奠定基础。方法从人胚胎肝脏中提取总RNA,利用反转录聚合酶链反应技术扩增α1-MG基因。然后克隆至PQE30表达载体,转化大肠杆菌M15中进行表达,并经镍固定金属亲和层析进行纯化,蛋白质印迹进行免疫学鉴定。结果获得了与Genebank报道一致的仪。一MG基因片段,成功构建了成熟人α1-MG的原核表达载体PQE30-α1-MG,质粒转化大肠杆菌并经1mmol/L异丙基硫代半乳糖诱导5h后,可表达相对分子质量约25000的外源蛋白,表达的α1-MG大部分在包涵体中,并可经镍固定金属亲和层析纯化,纯化有效率95%以上,BCA法测定纯化的α1-MG蛋白含量为25mg/L。蛋白质印迹表明,该蛋白可与抗人仅.一MG天然抗体反应。结论通过基因工程方法可获得高效表达的重组α1-MG蛋白,该蛋白具备同天然仅。一MG相同的生物学特性,为下一步进行α1-MG相关研究及应用奠定基础。 展开更多
关键词 Α1微球蛋白 重组蛋白 反转录聚合酶链式反应 蛋白质印迹
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肾移植术后尿α1-微球蛋白、超氧化物歧化酶和丙二醛的检测及意义 被引量:1
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作者 祝卿 胡正杨 +3 位作者 金建国 赵喜越 朱梅帧 林丽娜 《实用医学杂志》 CAS 北大核心 2013年第10期1674-1676,共3页
目的:研究肾移植术后尿α1-微球蛋白(α1-MG)、超氧化物歧化酶(SOD)和丙二醛(MDA)的变化规律,为术后评估提供依据。方法:首次行肾移植术患者,于术毕即刻、术后1、3、5、7、14 d采集尿和静脉血标本。采用双抗体酶联免疫吸附法(ELISA)检... 目的:研究肾移植术后尿α1-微球蛋白(α1-MG)、超氧化物歧化酶(SOD)和丙二醛(MDA)的变化规律,为术后评估提供依据。方法:首次行肾移植术患者,于术毕即刻、术后1、3、5、7、14 d采集尿和静脉血标本。采用双抗体酶联免疫吸附法(ELISA)检测尿α1-MG、SOD和MDA含量;同时检测血清肌酐(SCr)浓度。观察肾功能恢复过程中尿α1-MG、SOD和MDA含量变化,并分析它们与SCr浓度变化的关系。结果:在肾移植术后两周内,尿α1-MG、SOD和MDA的峰值均出现在术后早期(P<0.05)。随着时间推移,尿α1-MG、SOD、MDA呈递减性下降;且尿α1-MG、SOD和MDA与SCr相关性良好。结论:肾移植患者术后尿α1-MG、SOD和MDA的动态监测对研究肾移植过程中缺血/再灌注损伤有重要意义,亦可作为反映肾功恢复的指标。 展开更多
关键词 肾移植 尿 Α1-微球蛋白 超氧化物歧化酶 丙二醛
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胎盘α_1-微球蛋白的检测在诊断胎膜早破的价值 被引量:1
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作者 廖启洪 吕程 潘柳吟 《热带医学杂志》 CAS 2007年第3期248-249,共2页
目的探讨阴道液中α_1-微球蛋白(PAMG-1)定性检测诊断胎膜早破的价值。方法分析62例胎膜早破病例和38例胎膜未破病例的阴道液中PAMG-1、pH和HCG检测结果。结果PAMG-1检测胎膜早破的灵敏度、特异性和准确性分别为98.39%、100%和99.00%,... 目的探讨阴道液中α_1-微球蛋白(PAMG-1)定性检测诊断胎膜早破的价值。方法分析62例胎膜早破病例和38例胎膜未破病例的阴道液中PAMG-1、pH和HCG检测结果。结果PAMG-1检测胎膜早破的灵敏度、特异性和准确性分别为98.39%、100%和99.00%,阳性预测值为100%,阴性预测值为97.44%,灵敏度、准确度和阴性预测值明显高于pH和HCG方法,差异有显著性(P<0.01)。结论少量阴道液PAMG-1检测对胎膜早破的诊断优于pH和HCG,且同样具有简单、快速、无创伤、实用的优点。 展开更多
关键词 Α1-微球蛋白 胎膜早破 PH HCG
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尿白蛋白/α_1微球蛋白比值在临床肾脏病诊断中的意义 被引量:1
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作者 凌毅生 韩蜀莲 李国贤 《医师进修杂志》 北大核心 2004年第9期18-19,21,共3页
目的 通过检测尿白蛋白 /α1微球蛋白 (Alb/α1-m)比值 ,探讨其在肾小球疾病与肾间质小管病临床鉴别诊断中的指导意义。方法 病人分 4组 :A组为肾小球疾病组 ;B组为肾间质小管病组 ;每组再分为肾功能正常组、肾功能不全组。留取晨起... 目的 通过检测尿白蛋白 /α1微球蛋白 (Alb/α1-m)比值 ,探讨其在肾小球疾病与肾间质小管病临床鉴别诊断中的指导意义。方法 病人分 4组 :A组为肾小球疾病组 ;B组为肾间质小管病组 ;每组再分为肾功能正常组、肾功能不全组。留取晨起第一次尿标本 ,用速率散射比浊法测定尿白蛋白、尿α1微球蛋白定量。结果  (1)肾小球疾病组的尿Alb/α1-m比值明显大于肾间质小管病组 (P <0 .0 1) ,尿Alb/α1-m比值≥ 2 5 ,提示肾小球损害的特异性为10 0 % ;尿Alb/α1-m比值≤ 1,提示肾间质小管病的特异性为 10 0 %。 (2 )肾小球疾病组中肾功能正常亚组的尿Alb/α1-m比值大于肾功能不全亚组 ,统计学上有高度显著差异 (P <0 .0 1)。结论 研究表明检测尿Alb/α1-m比值对鉴别肾小球疾病与间质小管病及判断肾小球疾病是否存在肾功能损害有临床意义。 展开更多
关键词 尿白蛋白 尿Α1微球蛋白 鉴别诊断 肾衰竭
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