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中分子物质

中分子物质的相关文献在1984年到2017年内共计241篇,主要集中在外科学、临床医学、内科学 等领域,其中期刊论文239篇、会议论文2篇、专利文献184825篇;相关期刊169种,包括透析与人工器官、中国血液净化、临床肝胆病杂志等; 相关会议2种,包括第九届全国爱尔血液灌流学术研讨会、第九届中国血液净化论坛暨2017年中国医院协会血液净化中心管理分会年会等;中分子物质的相关文献由497位作者贡献,包括王铁丹、肖应庆、张建龙等。

中分子物质—发文量

期刊论文>

论文:239 占比:0.13%

会议论文>

论文:2 占比:0.00%

专利文献>

论文:184825 占比:99.87%

总计:185066篇

中分子物质—发文趋势图

中分子物质

-研究学者

  • 王铁丹
  • 肖应庆
  • 张建龙
  • 郑军
  • 王桂兰
  • 郭贤权
  • 何炳林
  • 崔存德
  • 王红梅
  • 吉丽敏
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 聂丽敏; 闫康; 张国欣; 刘娜; 殷玉棉; 薛兰芬
    • 摘要: 目的 观察不同血液净化方式对中分子尿毒症毒素β2-微球蛋白(β2-MG)、甲状旁腺素(PTH)等的清除效果,为临床合理选择尿毒症患者血液净化方式提供依据.方法 研究是64例在笔者医院进行血液净化治疗的尿毒症患者,同时根据血液净化方式的差异进行分组:单纯血液透析组(HD,n=30),血液透析合并血液灌流组(HD +HP,n=15),血液透析滤过组(HDF,n=19).采集治疗前后患者血清,ELISA法检测β2-MG、PTH水平以评价不同净化方式对中分子尿毒症毒素的清除率;检测临床肾功能指标和钙离子(Ca2+)、钾离子(K+)、钠离子(Na+)、氯离子(Cl-),反映不同净化方式对低分子物质的清除率.结果 与HD、HD+ HP组比较,HDF组治疗后血液中分子物质β2-MG和PTH水平均显著下降(P<0.01),清除效果明显;与HD组比较,HD+ HP组治疗后PTH显著下降(P<0.01),治疗后β2-MG的清除率比较,差异无统计学意义(P>0.05);3组BUN、Scr清除率、KT/V值透析前后血差异无统计学意义,Ca2、K+、Na+、Cl-改善比较,差异无统计学意义(P>0.05).结论 对于尿毒症患者体内毒素的清除,HDF的清除效果最佳,其次是HD+ HP,HD对中分子物质的清除无明显效果.%Objective To observe the effects of different blood purification models on scavenge of medium molecule substance in uremic patients,such as β2-microglobulin (β2-MG),parathyroid hormone (PTH),providing a reasonable choice of blood purification mcthods for clinical treatment of uremia.Methods Totally 64 cases of uremia patients with blood purification treatment were selected in blood purification center of our Hospital.According to different blood purification methods,they were divided into:simple hemodialysis group (HD,n =30);combined hemoperfusion with hemodialysis group (HD + HP,n =15);hemodiafiltration group (HDF,n =19).Serum samples were collected before and after blood purification treatment.β2-MG and PTH were detected by ELISA assay.Urea (BUN),creatinine (Cr),calcium (Ca2+),potassium ions (K +),sodium ions (Na +),chloride (Cl-) were measured by biochemical methods,in order to estimate clearance rates of different molecule weight substance by different blood purification methods.Results the Serum level of β2-MG and PTH in HDF treatment group were significantly decreased,compared with those of HD group and HD + HP group (P < 0.01),removal efficiency significantly.The Serum level of PTH in HD + HP treatment group were significantly decreased,compared with that of HD group (P < 0.01),but the srerum β2-MG level was no significant difference (P > 0.05).The level of BUN,SCr clearance and blood KT/V value had no significant difference between three groups.The serum [Ca2+],[K +],[Na +] and [Cl] had also no significant difference in three groups (P > 0.05).Conclusion For uremic patients in vivo toxin removal,HDF removal efficiency is the best,followed by HD + HP,HD on the removal of molecular substances have no obvious effect.
    • 班遵浦; 罗国鸿; 陈彤
    • 摘要: 目的 探讨高通量透析对中分子物质的清除作用及透析患者死亡的相关因素.方法 选取2015年6月-2016年1月在该院血液净化中心行血液透析的216例慢性肾衰竭(尿毒症)患者,根据透析方式将患者随机分为高通量透析组(HF,n=104)和低通量透析组(LF,n=112),检测治疗前后血清肌酐(Cr)、尿素氮(BUN)、β2微球蛋白(β2-MG)、免疫反应性甲状旁腺激素(iPTH)及C反应蛋白(CRP)浓度水平,卡普兰-迈耶(Kaplan-Meier)生存曲线分析两组患者生存率,COX多因素回归分析影响患者死亡的危险因素.结果 透析后,两组血清Cr、BUN、β2-MG、iPTH及CRP浓度均降低,HF组血清Cr、BUN、β2-MG及iPTH浓度低于LF组,HF组临床症状改善多于LF组(χ2=5.782,P=0.016).LF组死亡率高于HF组(χ2=4.202,P=0.040),HF组累积生存率高于LF组(P=0.011),COX多因素回归分析结果显示透析类型、心血管疾病、肾小球滤过率(GFR)、血清Cr及β2-MG水平是影响透析患者死亡的危险因素.结论 高通量透析(HFHD)能有效清除尿毒症患者体内中分子毒素,改善临床症状,降低透析患者死亡率,改善预后.%Objective To explore the effect of high-flux hemodialysis on middle molecular weight toxins, and to analyze the causes of death in patients. Methods A total of 216 cases of renal failure patients were randomly divided into two groups (HF, n=104) and (LF, n=112) in the First People's Hospital of Zunyi City. Levels of Cr, BUN, β2-MG, iPTH and CRP were detected before and after the treatment. Survival rate was analyzed by Kaplan-Meier survival curve, and risk factors were analyzed by multivariate cox regression analysis. Results After the treatment, serum levels of creatinine, BUN, β2-MG and iPTH were significantly decreased, and improvement of clinical symptoms in HF group was better than that in LF group (χ2=5.782, P=0.016). The mortality of LF group was significantly higher than that of HF group (χ2=4.202, P=0.040), and cumulative survival rate of HF group was significantly higher than that of LF group (P=0.011). Dialysis type, cardiovascular disease, GFR, Cr and β2-MG were the risk factors. Conclusions High-flux hemodialysis can effectively clear middle molecular weight toxins, and improve clinical symptoms and prognosis.
    • 余双双
    • 摘要: 目的:对比高通量血液透析和低通量血液透析的血液透析效果,发现高通量血液透析对于中大分子物质清除效果好,延长透析相关并发症的发生时间.方法:实验组30人,采用高通量血液透析.对照组30人,采用低通量血液透析.治疗一年后,实验对比甲状旁腺激素(PTH),β2微球蛋白(β2-MG),C反应蛋白(CRP).结果:实验组数值普遍低于对照组.结论:高通量血液透析对于中分子物质的清除效果高于低通量血液透析,可以延长维持性透析相关并发症的发生时间,提高生活质量和生存率.
    • 李小华; 周红卫
    • 摘要: 目的 探讨连续性非卧床腹膜透析(CAPD)患者尿素清除指数(Kt/V)与尿毒症患者毒素水平、贫血程度、营养状况的关系,分析用其评价透析效果的局限性.方法 回顾性分析127例CAPD治疗患者的临床资料,分析患者Kt/V与血肌酐、尿素氮、全段甲状旁腺素(intact parathyroid hormone,iPTH)、β2微球蛋白(β2-microglobulin,β2-MG)、血磷、血清白蛋白、血红蛋白的关系, 根据Kt/V水平将127例患者分为低Kt/V组(Kt/V0.05).高Kt/V组患者血红蛋白水平高于低Kt/V组(P0.05).结论 Kt/V可能与CAPD患者中分子物质、营养状况不相关,用其评价CAPD患者溶质清除状况及透析充分性具有一定的局限性.
    • 苏海华; 张家隆; 张婷; 王永红; 滕佳琪; 舒全莲
    • 摘要: 目的 探讨胱抑素C下降率(cystatin Creductionratio,CyCRR)在终末期肾病(ESRD)患者中分子物质清除评估中的作用.方法 选择终末期肾病患者90例,按透析方式不同分为血液透析滤过(hemodiafitration,HDF)组和血液透析(hemodialysis,HD)组,每组各45例,于治疗前、后分别测定血清胱抑素C(CyC)、β2-微球蛋白(β2-MG)、全段甲状旁腺激素(iPTH)、瘦素(LP)、尿素氮(BUN)、肌酐(Cr)等指标,并根据上述指标计算胱抑素C下降率(CyCRR)、β2-微球蛋白下降率(β2-MGRR)、全段甲状旁腺激素下降率(iPTHRR)、瘦素下降率(LPRR)以及尿素清除指数(eKt/Vurea).对两组治疗前后血清CyC、β2-MG、iPTH、LP水平及下降率分别进行比较,同时对HDF组上述物质下降率进行相关性分析.结果 两组治疗前各项指标差异无统计学意义(P>0.05).HDF组治疗后CyCRR 、β2-MGRR、iPTHRR、LPRR较HD组提高(P<0.05),两组KT/V未见明显差异(P>0.05).HDF组相关性分析显示,CyCRR不仅与β2-MGRR、iPFHRR、LPRR相关(P<0.05),且与eKt/Vurea相关(P<0.05).结论 HDF与HD相比较能有效提高CyC、β2-MG、iPTH、LP等中分子物质的清除率,而CyCRR可作为一种较准确反映终末期肾病患者中分子物质清除的评估指标.%Objective To investigate the role of cystatin C reduction ratio(CyCRR) in evaluation of the clearance of middle molecules in patients with end-stage renal disease (ESRD).Methods Ninety patients with maintenance hemodialysis (MHD) were randomly divided into two groups,45 cases with hemodiafitration treatment (HDF group),and 45 cases with hemodialysis treatment (HD group).Cystatin C (CyC),β2-microglobulin (β2-MG),leptin (Lp),intact parathormone (iPTH),creatinine (Cr),urea nitrogen (BUN) were detected before and after the treatment.Cystatin C reduction ratio (CyCRR),β2-microglobulin reduction ratio (β2-MGRR),leptin reduction ratio (LpRR),intact parathormone reduction ratio (iPTHRR) and equilibrated Kt/Vurea (eKt/Vurea) were calculated as the results of above indexes after treatment.Above reduction ratio of the two groups after treatment were compared respectively.Also,correlation analyse were utilized to assess the relationship of CyCRR and some other reduction ratio.Results There were no significant difference in all parameters between HDF group and HD group before the treatment.CyCRR,β2-MGRR,iPTHRR and LPRR in the HDF group were significantly increased after the treatment compared to those in the HD group(P < 0.01 or P < 0.05).However,the eKt/Vurea did not differ between the two groups.CyCRR was significantly related to β2-MGRR,iPTHRR,LPRR and eKt/Vurea in the HDF group by Pearson relativity analysis (P < 0.01 or P < 0.05).Conclusion Compared to HD,HDF can elevate the clearance of middle molecules,including CyC,β2-MG,iPTH and LP more efficiently.As a alternative evaluation indicator,CyCRR can more accurately reflect of the clearance of middle molecules in patients with ESRD undergoing MHD.
    • 李梅; 石成钢; 尹琼丽; 陈燕铭
    • 摘要: Objective To investigate the effects of hemodialysis (HD)and hemodiafiltration(HDF) on pentosidine(PENT) and middle molecular substances (MMS )in diabetic kidney disease (DKD ) uremic patients.Methods 36 cases of DKD uremic hemodialysis pa-tients met the inclusion criteria were divided into 2 groups:HD group (n=24 ) ,HDF group (n=12 ).Before and after each conven-tional therapy ,blood was sampled for BUN ,MMS ,PENT.Each dialysis adequacy (KT/V) was calculated by the Daugirdas formu-la .Results The BUN in each group was significantly decreased ( P<0.01) ,KT/V was more than 1.3 ,and there were no significant differences among the rates of BUN and KT/V descending among groups.Each group could partially reduce the levels of serum MMS , PENT ,but HDF did better than HD ( P<0.05 ).Conclusions In terms of clearing MMS ,PENT for DKD_caused patients ,HDF is better than conventional HD.%目的:观察糖尿病肾病尿毒症患者接受血液透析(HD )和血液透析滤过(HDF )治疗对中分子毒素(MMS )、晚期糖基化终产物戊糖素(PENT )的清除效果。方法选择符合入选标准的36例维持性血液透析DKD尿毒症患者,分为HD组(n=24)、HDF组(n=12),于单次治疗前后取血,测定血清尿素氮(BUN )、MMS、PENT ,应用Daugirdas公式计算单次透析充分性(KT/V)。结果各组患者治疗后血清BUN水平均显著下降( P<0.01),KT/V均超过1.3,但各组间BUN下降率及KT/V差异无统计学意义。各组均能部分降低血清MMS、PENT水平,HDF对MMS、PENT的清除率优于常规HD清除( P<0.05)。结论血液透析滤过对糖尿病肾病尿毒症患者MMS、PENT清除明显优于常规血液透析。
    • 毕学青; 姜埃利; 魏芳; 王喆; 张瑞宁
    • 摘要: 目的 观察高通量透析在不同超滤量情况下对维持性血液透析患者体内毒素清除效率及皮肤瘙痒程度的影响. 方法 选择维持性血液透析患者80例随机分成治疗组及对照组,均进行高通量透析治疗但治疗组超滤量大于对照组,2组患者均每周血液透析治疗3次,每次4h,共观察6个月;在观察的0、6个月时分别检测两组患者的透析前后血肌酐(Cr)、血磷(p)、β2-微球蛋白(β2-MG)浓度,计算单次透析溶质清除率,取两次结果均值比较;应用改良Duo评分系统评估治疗前后瘙痒程度变化;比较两组患者跨膜压及不良反应的发生情况.以上结果均行t检验或x2检验.结果 经过上述治疗后两组患者血肌酐下降率差异无统计学意义(t =1.094,P=0.277,P>0.05);治疗组p、β2-MG的下降率均大于对照组(t值分别为-2.138和-12.815,P值分别为0.036和0.01,P<0.05);治疗组患者皮肤瘙痒降低程度大于对照组(t=-3.556,P=0.01,P<0.05);治疗组跨膜压高于对照组(t值10.22,P值0.001,P<0.01);两组不良反应发生率无统计学差异(x2=值分别为0.346、0.157和0.125,P值分别为0.556、0.692和0.723,P>0.05). 结论 高通量透析时增加超滤量在保证对小分子毒素充分清除的基础上,增加了大、中分子毒素的清除,可以明显减轻维持性血液透析患者顽固性皮肤瘙痒症状,可更大程度的发挥高通量透析的优势,不增加不良反应发生.
    • 刘文
    • 摘要: 慢性肾衰患者常有恶心呕吐,这是消化系统功能失调的表现。每个患者病情轻重不一,其恶心呕吐的次数和程度都是不同的,许多患者常表现为晨起加重。由于肾功能衰竭,血尿素氨增高,肠道中细菌的尿素酶将尿素分解为氨,刺激胃肠道黏膜,产生炎症或溃疡,引起恶心、呕吐:尿毒症毒素,特别是中分子物质等,影响细胞代谢,导致细胞水肿:肾功能减退,影响胃泌素的排泄和失活,形成高胃泌素低胃酸的情况等,均可让人出现恶心呕吐。
    • 张文; 王占仁; 黄菊; 田华; 李春茵
    • 摘要: 目的 分析探讨活性炭和树脂对尿毒症患者体内的中分子物质总量(middle molecular substances,MMS)及甲状旁腺素(parathyroid hormone,PTH)的清除性能差异. 方法 取维持性透析患者的血液,随机分为4组,分别用AC活性炭、MR1、MR2、MR3树脂4种吸附剂进行体外吸附,检测吸附前后血液中的MMS和PTH,结合吸附剂的孔结构检测,分析活性炭与树脂对MMS、PTH的清除性能差异. 结果 同组内吸附前后比较,4组血样的MMS、PTH水平均显著降低(P<0.01; MMS指标P值分别为0.006、0.001、0.001、0.000,PTH指标P值均为0.000).对MMS清除水平,AC组最高(32.73%±3.29%),MR1组(22.96%±7.18%)最低,且2组比较有统计学意义(P<0.05; P=0.027),而3种树脂间MMS清除水平差异无统计学意义.对PTH清除水平,MR1组最高(90.52%±4.05%),MR2组次之(77.43%±3.65%),MR3组较小(63.71%±1.49%),AC组最低(36.53%±4.95%),且4组差异显著(P<0.01;P值均为0.000). 结论 活性炭由于孔径分布范围广,能吸附的毒素分子量范围更广,对中分子物质总量清除更有利;大孔吸附树脂具有较为集中的孔径分布,对以PTH为目标的单一中分子毒素清除更有利.%Objective To explore the removal performance of middle molecular substances (MMS) and parathyroid hormone (PTH) in uremic blood samples by activated carbon and several resin adsorbents. Methods Blood samples from maintenance hemodialysis patients were randomly divided into four groups for in vitro adsorption tests by AC (activated carbon), MR1, MR2 and MR3 (resin). Measurement of MMS and PTH in blood samples before and after the adsorption combined with the sorbent pore structure was used to analyze the performance differences of MMS and PTH removal by activated carbon and the 3 kinds of resins. Results MMS and PTH levels decreased significantly after adsorption within the same group, and this was found in the AC, MR1, MR2 and MR3 groups (P < 0.01; for MMS, P value was 0.006, 0.001, 0.001, and 0, respectively; for PTH, P values were all 0.000 ). The clearance of MMS was highest in AC group, lowest in MR1 group (P < 0.05 between the two groups), but the clearance was indifferent among the 3 kinds of resins. The clearance of PTH was in the order of MR1 group (90.52% ± 4.05%), MR2 group (77.43% ± 3.65%), MR3 group (63.71% ± 1.49%), and AC group (36.53% ± 4.95%), with statistical significance among the 4 groups (P < 0.01; P values were all 0.000). Conclusions Activated carbon can adsorb the toxins of greater scope of molecular weight due to the wider pore size distribution range, and is suitable for removal of middle molecule substances; resins of larger pore size have relatively centralized pore size distribution, and are suitable for the clearance of single molecule toxins such as PTH.
    • 叶晓燕; 刘贻声; 张文; 袁秦
    • 摘要: 中分子量物质具有致病作用,其含量高低与血液透析患者病情基本一致,中分子物质吸附性能在血液灌流器检测中具有重要意义.本文对血液灌流器中中分子物质吸附性能的两种体外检测方法进行了探讨.
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