目的:探讨丹参酮ⅡA(TSN)注射液对高糖腹膜透析液(PDF)诱导体外培养人腹膜间皮细胞(HPMCs)氧化应激及凋亡的影响。方法:氧化应激指标检测:体外培养人网膜间皮细胞,分为对照组(DEME培养基)、PDF组(4.25%PDF)、TSN组(含TSN终浓度为100μmo...目的:探讨丹参酮ⅡA(TSN)注射液对高糖腹膜透析液(PDF)诱导体外培养人腹膜间皮细胞(HPMCs)氧化应激及凋亡的影响。方法:氧化应激指标检测:体外培养人网膜间皮细胞,分为对照组(DEME培养基)、PDF组(4.25%PDF)、TSN组(含TSN终浓度为100μmol.L-1的DEME培养基)、TSN低浓度组(含TSN终浓度为50μmol.L-1的4.25%PDF)、TSN高浓度组(含TSN终浓度为100μmol.L-1的4.25%PDF)5组观察,共培养48 h后取上清液检测丙二醛(MDA)、超氧化物歧化酶(SOD)、谷胱甘肽(GSH)浓度。细胞凋亡因子检测:体外培养细胞分为对照组(DEME培养基)、H2O2组(3%H2O2)、TSN+H2O2组(含TSN终浓度为50μmol.L-1的3%H2O2)、PDF组(4.25%PDF)、TSN+PDF组(含TSN终浓度为50μmol.L-1的4.25%PDF)5组观察,共培养72 h后Real time PCR法检测细胞凋亡因子bax、caspase-3及抑制凋亡因子bcl-2的表达情况,Western Blot法检测细胞凋亡蛋白bax、caspase-3及抑制凋亡蛋白bcl-2的表达情况。结果:与对照组比较,PDF组中MDA的含量显著升高(P<0.01),SOD、GSH的含量显著降低(P<0.01)。与PDF组比较,添加TSN后的各组MDA含量明显降低(P<0.01),SOD、GSH的含量显著升高(P<0.01)。Real time PCR及Western Blot结果发现,与对照组比较,PDF组及H2O2组bax、caspase-3的mRNA及蛋白表达显著增多(P<0.01),同时bcl-2的mRNA及蛋白的表达显著减少(P<0.01);添加TSN的PDF组及H2O2组分别较单纯PDF组及H2O2组bax、caspase-3的mRNA及蛋白表达显著减少(P<0.01),而bcl-2的mRNA及蛋白表达显著增多(P<0.01)。结论:TSN可能通过抑制氧化应激下调PDF诱导的HPMCs细胞凋亡因子高表达,具有潜在的腹膜保护作用。展开更多
<strong>Background:</strong> In subjects on CAPD who use icodextrin for long night dwell, it has been recommended that nocturnal exchange be replaced by dextrose dwell whenever PET is to be performed as pr...<strong>Background:</strong> In subjects on CAPD who use icodextrin for long night dwell, it has been recommended that nocturnal exchange be replaced by dextrose dwell whenever PET is to be performed as preceding exchange with icodextrin temporarily increases peritoneal membrane permeability and therefore, gives high D/PCr and low D/D<sub>0</sub> glucose values. Whether this temporary change is also seen with use of Uni-PET (which involves one hour dwell of 1.5% dextrose followed by 4-hour dwell of 4.25% dextrose) is not known. <strong>Methods:</strong> In this self, controlled study, subjects on CAPD, who were using icodextrin for long nocturnal dwell for at least 3 months, were screened for enrolment. Pregnancy or lactation, history of any PD related infectious complication in the past one month, present or past malignancy, and poor functional status were exclusion criteria. Enrolled subjects underwent classic PET with preceding 2.5% dextrose long nocturnal dwell on day 1 followed by Uni-PET with preceding 7.5% icodextrin long nocturnal dwell on day 2. Difference in D/PCr and D/D0 glucose between the two PETs was primary objectives. The study was approved by Institute Ethics Committee. <strong>Results:</strong> 15 out of 26 screened subjects were enrolled over a period of 18 months (July 2015-December 2016). The mean (±SD) age of study population was 60.8±9.1 years. Majority were males and diabetes was the most common cause of CKD. Mean D/PCr were 0.68 ± 0.11 and 0.64 ± 0.08 in classic PET and Uni-PET, respectively. The difference between the two values was not significant [mean difference between D/PCr (classic PET-Uni-PET): 0.040 ± 0.86;95% CI (-0.007 to 0.088);p = 0.09]. Similarly, D/D<sub>0</sub> glucose between classic PET and Uni-PET was also similar [mean difference between D/D0 glucose (classic PET-Uni-PET): -0.02 ± 0.09;95% CI (-0.06 to 0.03);p = 0.448]. <strong>Conclusion:</strong> Peritoneal membrane small solute transport characteristics in Uni-PET with preceding icodextrin dwell are similar t展开更多
文摘目的:探讨丹参酮ⅡA(TSN)注射液对高糖腹膜透析液(PDF)诱导体外培养人腹膜间皮细胞(HPMCs)氧化应激及凋亡的影响。方法:氧化应激指标检测:体外培养人网膜间皮细胞,分为对照组(DEME培养基)、PDF组(4.25%PDF)、TSN组(含TSN终浓度为100μmol.L-1的DEME培养基)、TSN低浓度组(含TSN终浓度为50μmol.L-1的4.25%PDF)、TSN高浓度组(含TSN终浓度为100μmol.L-1的4.25%PDF)5组观察,共培养48 h后取上清液检测丙二醛(MDA)、超氧化物歧化酶(SOD)、谷胱甘肽(GSH)浓度。细胞凋亡因子检测:体外培养细胞分为对照组(DEME培养基)、H2O2组(3%H2O2)、TSN+H2O2组(含TSN终浓度为50μmol.L-1的3%H2O2)、PDF组(4.25%PDF)、TSN+PDF组(含TSN终浓度为50μmol.L-1的4.25%PDF)5组观察,共培养72 h后Real time PCR法检测细胞凋亡因子bax、caspase-3及抑制凋亡因子bcl-2的表达情况,Western Blot法检测细胞凋亡蛋白bax、caspase-3及抑制凋亡蛋白bcl-2的表达情况。结果:与对照组比较,PDF组中MDA的含量显著升高(P<0.01),SOD、GSH的含量显著降低(P<0.01)。与PDF组比较,添加TSN后的各组MDA含量明显降低(P<0.01),SOD、GSH的含量显著升高(P<0.01)。Real time PCR及Western Blot结果发现,与对照组比较,PDF组及H2O2组bax、caspase-3的mRNA及蛋白表达显著增多(P<0.01),同时bcl-2的mRNA及蛋白的表达显著减少(P<0.01);添加TSN的PDF组及H2O2组分别较单纯PDF组及H2O2组bax、caspase-3的mRNA及蛋白表达显著减少(P<0.01),而bcl-2的mRNA及蛋白表达显著增多(P<0.01)。结论:TSN可能通过抑制氧化应激下调PDF诱导的HPMCs细胞凋亡因子高表达,具有潜在的腹膜保护作用。
文摘<strong>Background:</strong> In subjects on CAPD who use icodextrin for long night dwell, it has been recommended that nocturnal exchange be replaced by dextrose dwell whenever PET is to be performed as preceding exchange with icodextrin temporarily increases peritoneal membrane permeability and therefore, gives high D/PCr and low D/D<sub>0</sub> glucose values. Whether this temporary change is also seen with use of Uni-PET (which involves one hour dwell of 1.5% dextrose followed by 4-hour dwell of 4.25% dextrose) is not known. <strong>Methods:</strong> In this self, controlled study, subjects on CAPD, who were using icodextrin for long nocturnal dwell for at least 3 months, were screened for enrolment. Pregnancy or lactation, history of any PD related infectious complication in the past one month, present or past malignancy, and poor functional status were exclusion criteria. Enrolled subjects underwent classic PET with preceding 2.5% dextrose long nocturnal dwell on day 1 followed by Uni-PET with preceding 7.5% icodextrin long nocturnal dwell on day 2. Difference in D/PCr and D/D0 glucose between the two PETs was primary objectives. The study was approved by Institute Ethics Committee. <strong>Results:</strong> 15 out of 26 screened subjects were enrolled over a period of 18 months (July 2015-December 2016). The mean (±SD) age of study population was 60.8±9.1 years. Majority were males and diabetes was the most common cause of CKD. Mean D/PCr were 0.68 ± 0.11 and 0.64 ± 0.08 in classic PET and Uni-PET, respectively. The difference between the two values was not significant [mean difference between D/PCr (classic PET-Uni-PET): 0.040 ± 0.86;95% CI (-0.007 to 0.088);p = 0.09]. Similarly, D/D<sub>0</sub> glucose between classic PET and Uni-PET was also similar [mean difference between D/D0 glucose (classic PET-Uni-PET): -0.02 ± 0.09;95% CI (-0.06 to 0.03);p = 0.448]. <strong>Conclusion:</strong> Peritoneal membrane small solute transport characteristics in Uni-PET with preceding icodextrin dwell are similar t
