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Procedure: Peritoneal Dialysis

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Total 28 results found since Jan 2013.

Activation of RAS contributes to peritoneal fibrosis via dysregulation of low-density lipoprotein receptor.
In conclusion, increased intracellular RAS activity impaired lipid homeostasis and induced ECM accumulation in HPMCs by disrupting the LDLr pathway, which contributed to PF. PMID: 33427062 [PubMed - as supplied by publisher]
Source: Am J Physiol Renal P... - January 11, 2021 Category: Urology & Nephrology Authors: Liu J, Feng Y, Li N, Shao QY, Zhang Q, Sun C, Xu P, Jiang CM Tags: Am J Physiol Renal Physiol Source Type: research

Elevated expression of HDAC6 in clinical peritoneal dialysis patients and its pathogenic role on peritoneal angiogenesis.
In this study, we analyzed the expression of HDAC6 in the peritoneum from patients with non-PD and PD-related peritonitis and dialysis effluent from stable PD patients. Our study revealed that HDAC6 expressed highly in the peritoneum with peritonitis and co-stained with α-smooth muscle actin (α-SMA), a biomarker of the myofibroblast. And the level of HDAC6 in the dialysate increased with time and positively correlated with transforming growth factor-β1 (TGF-β1), interleukin-6 (IL-6) and vascular endothelial growth factor (VEGF), and negatively with cancer antigen 125 (CA125). In vitro, blockading HDAC6 with a selective...
Source: Renal Failure - September 1, 2020 Category: Urology & Nephrology Tags: Ren Fail Source Type: research

Dimethylaminomicheliolide ameliorates peritoneal fibrosis through the activation of autophagy
This study aimed to investigate the protective effect of DMAMCL against PD-related PF and the mechanisms involved. In this study, we found that DMAMCL significantly decreased PD-induced extracellular matrix (ECM) deposition in a mouse model of PD, and that delayed DMAMCL administration halted the progression of PF in an established PD model. In addition, rapamycin administration induced autophagy and significantly ameliorated PF. The protective effect of DMAMCL against PF was weakened when co-administered with DMAMCL and 3-methyladenine. Inducing autophagy by rapamycin decreased transforming growth factor- β1–induced EC...
Source: Journal of Molecular Medicine - March 10, 2019 Category: Molecular Biology Source Type: research

Dimethylaminomicheliolide ameliorates peritoneal fibrosis through the activation of autophagy.
This study aimed to investigate the protective effect of DMAMCL against PD-related PF and the mechanisms involved. In this study, we found that DMAMCL significantly decreased PD-induced extracellular matrix (ECM) deposition in a mouse model of PD, and that delayed DMAMCL administration halted the progression of PF in an established PD model. In addition, rapamycin administration induced autophagy and significantly ameliorated PF. The protective effect of DMAMCL against PF was weakened when co-administered with DMAMCL and 3-methyladenine. Inducing autophagy by rapamycin decreased transforming growth factor-β1-induced ECM a...
Source: Molecular Medicine - March 10, 2019 Category: Molecular Biology Authors: Li S, Peng F, Gong W, Wu J, Wang Y, Xu Z, Liu W, Li H, Yin B, Zhang Y, Chen S, Luo C, Li P, Chen Y, Huang Q, Zhou W, Long H Tags: J Mol Med (Berl) Source Type: research

Mammalian Target of Rapamycin Complex 1 Activation Disrupts the Low-Density Lipoprotein Receptor Pathway: A Novel Mechanism for Extracellular Matrix Accumulation in Human Peritoneal Mesothelial Cells
Peritoneal fibrosis (PF) is characterized by progressive extracellular matrix (ECM) accumulation. Increasing evidence has suggested that ECM synthesis was increased in human peritoneal mesothelial cells (HPMCs) under high-glucose conditions, but the effects of high-glucose peritoneal dialysis solution (PDS) on ECM synthesis have not been fully elucidated. The aim of this study was to explore the potential mechanisms of high-glucose PDS-induced production of ECM in  HPMCs. HPMCs were stimulated by high-glucose PDS. The activity of mammalian target of rapamycin complex 1 (mTORC1) was inhibited by rapamycin or regulatory-as...
Source: American Journal of Nephrology - November 13, 2018 Category: Neurology Source Type: research

Mammalian Target of Rapamycin Complex 1 Activation Disrupts the Low-Density Lipoprotein Receptor Pathway: A Novel Mechanism for Extracellular Matrix Accumulation in Human Peritoneal Mesothelial Cells.
Abstract Peritoneal fibrosis (PF) is characterized by progressive extracellular matrix (ECM) accumulation. Increasing evidence has suggested that ECM synthesis was increased in human peritoneal mesothelial cells (HPMCs) under high-glucose conditions, but the effects of high-glucose peritoneal dialysis solution (PDS) on ECM synthesis have not been fully elucidated. The aim of this study was to explore the potential mechanisms of high-glucose PDS-induced production of ECM in HPMCs. HPMCs were stimulated by high-glucose PDS. The activity of mammalian target of rapamycin complex 1 (mTORC1) was inhibited by rapamycin...
Source: American Journal of Nephrology - November 13, 2018 Category: Urology & Nephrology Authors: Liu J, Zhu W, Jiang CM, Feng Y, Xia YY, Zhang QY, Xu PF, Zhang M Tags: Am J Nephrol Source Type: research

Autophagy promotes fibrosis and apoptosis in the peritoneum during long ‐term peritoneal dialysis
In this study, we found that the coincidence of elevated TGF‐β1 expression, autophagy, apoptosis and fibrosis in peritoneal membrane from patients with peritoneal dialysis. The peritoneal membranes from patients were performed with immunocytochemistry and transmission electron microscopy. Human peritoneal mesothelial cells were treated with 1.5%, 2.5% and 4.25% HGPDS for 24 hrs; Human peritoneal mesothelial cells pre‐treated with TGF‐β1 (10 ng/ml) or transfected with siRNA Beclin1 were treated with 4.25% HGPDS or vehicle for 24 hrs. We further detected the production of TGF‐β1, activation of TGF‐β1/Smad2/3 si...
Source: Journal of Cellular and Molecular Medicine - October 27, 2017 Category: Molecular Biology Authors: Jingjing Wu, Changying Xing, Li Zhang, Huijuan Mao, Xuguan Chen, Mingxing Liang, Fang Wang, Haibin Ren, Hongqing Cui, Aiqin Jiang, Zibin Wang, Meijuan Zou, Yong Ji Tags: Original Article Source Type: research

Autophagy promotes fibrosis and apoptosis in the peritoneum during long-term peritoneal dialysis.
In this study, we found that the coincidence of elevated TGF-β1 expression, autophagy, apoptosis and fibrosis in peritoneal membrane from patients with peritoneal dialysis. The peritoneal membranes from patients were performed with immunocytochemistry and transmission electron microscopy. Human peritoneal mesothelial cells were treated with 1.5%, 2.5% and 4.25% HGPDS for 24 hrs; Human peritoneal mesothelial cells pre-treated with TGF-β1 (10 ng/ml) or transfected with siRNA Beclin1 were treated with 4.25% HGPDS or vehicle for 24 hrs. We further detected the production of TGF-β1, activation of TGF-β1/Smad2/3 signalling, ...
Source: J Cell Mol Med - October 27, 2017 Category: Molecular Biology Authors: Wu J, Xing C, Zhang L, Mao H, Chen X, Liang M, Wang F, Ren H, Cui H, Jiang A, Wang Z, Zou M, Ji Y Tags: J Cell Mol Med Source Type: research

Role of Small Interfering RNA Silencing Protein Kinase C ‐α Gene on the Occurrence of Ultrafiltration Failure in Peritoneal Dialysis Rats
This study aims to explore the effect of PKC‐α gene silencing on the occurrence of ultrafiltration failure (UFF) in peritoneal dialysis (PD) rats. Forty‐eight male SD rats were collected to establish 5/6 renal resection uremic and uremic PD rats models. Rats were assigned into control, sham operation, uremia, PD‐2 W (peritoneal dialysis for 2 weeks), PD‐4 W (peritoneal dialysis for 4 weeks), negative control (NC) (peritoneal dialysis for 4 weeks, and injected 0.1 mg/kg blank plasmid into abdominal cavity) and PKC‐α siRNA (peritoneal dialysis for 4 weeks, and injected 0.1 mg/kg PKC‐α siRNA into abdomi...
Source: Journal of Cellular Biochemistry - May 9, 2017 Category: Biochemistry Authors: Zhi ‐Wei Sun, Jian Wang, Min Weng, Jian‐Zhong Tang, Jun‐Feng Wang, Jian Xu, Ling Lin, Hong‐Ling Yuan Tags: Article Source Type: research

Monocarboxylate Transporter ‐1 Mediates the Protective Effects of Neutral‐pH Bicarbonate/Lactate‐Buffered Peritoneal Dialysis Fluid on Cell Viability and Apoptosis
Abstract We investigated the effects of bicarbonate/lactate‐buffered peritoneal dialysis fluid (B/L‐PDF) and lactate‐buffered PDF (L‐PDF) on cell viability and apoptosis, focusing on monocarboxylate transporters (MCTs). MCT‐1 transports lactate into cells. Cell viability and apoptosis of human peritoneal mesothelial cells (HPMCs) were examined by water‐soluble tetrazolium salt‐1 and TUNEL assays, respectively. The relative number of viable HPMCs was significantly decreased by L‐PDF at 48 h (8.8 ± 0.4%) compared with cells cultured in M199, but not by B/L‐PDF (66.7 ± 1.1%). Apoptosis was marked...
Source: Therapeutic Apheresis and Dialysis - December 11, 2016 Category: Hematology Authors: Akihiro Kuma, Masahito Tamura, Nana Ishimatsu, Yoshikazu Harada, Hiroto Izumi, Tetsu Miyamoto, Yumi Furuno, Yoko Nakano, Ryota Serino, Yutaka Otsuji Tags: Original Article Source Type: research

The role of Resveratrol-induced mitophagy/autophagy in peritoneal mesothelial cells inflammatory injury via NLRP3 inflammasome activation triggered by mitochondrial ROS.
Abstract It has been suggested that continuous exposure of peritoneal mesothelial cells (PMCs) to high glucose-containing peritoneal dialysis (PD) solutions may result in peritoneal inflammatory injury and impairment of local peritoneal host defence. Here, we investigated the effect of glucose-based PD solutions on mitochondrial reactive oxygen species (ROS) and nod-like receptor 3 (NLRP3) inflammasome activation in human PMCs (HPMCs). Exposure of HPMCs to high glucose-based PD solutions resulted in ROS production, which can trigger NLRP3 activation, leading to IL-1β secretion. Additionally, resveratrol (RSV) tre...
Source: Experimental Cell Research - January 26, 2016 Category: Cytology Authors: Wu J, Li X, Zhu G, Zhang Y, He M, Zhang J Tags: Exp Cell Res Source Type: research

AKT regulation of mesothelial-to-mesenchymal transition in peritoneal dialysis is modulated by smurf2 and deubiquitinating enzyme USP4
Conclusions: These data implied that Akt mediated MMT in PD via Smurf2 modulation/and or Smad7 degradation while conceivably maintaining the TβRI stability, most likely by the USP4.
Source: BMC Cell Biology - March 6, 2015 Category: Cytology Authors: Li XiaoXiang PengFuyou LiuChengyuan TangChun HuXiaoxuan XuMing WangYing LuoShikun YangPanai SongPing XiaoYashpal KanwarLin Sun Source Type: research

Lipopolysaccharide (LPS)-induced autophagy is involved in the restriction of Escherichia coli in peritoneal mesothelial cells
Conclusions: Our findings demonstrated for the first time that LPS-induced autophagy in peritoneal mesothelial cells could enhance the intracellular bactericidal activity and the co-localization of E.coli with autophagosomes. The activation of TLR4 signaling was involved in this process. These results indicate that LPS-induced autophagy may be a cell-autonomous defense mechanism triggered in peritoneal mesothelial cells in response to E.coli infection.
Source: BMC Microbiology - Latest articles - November 13, 2013 Category: Microbiology Authors: Juan WangXiaoran FengYoujia ZengJinjin FanJuan WuZhijian LiXinhui LiuRong HuangFengxian HuangXueqing YuXiao Yang Source Type: research