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Peritoneal fibrosis

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https://www.readbyqxmd.com/read/29208752/effects-of-alanyl-glutamine-treatment-on-the-peritoneal-dialysis-effluent-proteome-reveal-pathomechanism-associated-molecular-signatures
#1
Rebecca Herzog, Michael Boehm, Markus Unterwurzacher, Anja Wagner, Katja Parapatics, Peter Majek, André C Mueller, Anton Lichtenauer, Keiryn L Bennett, Seth L Alper, Andreas Vychytil, Christoph Aufricht, Klaus Kratochwill
Peritoneal dialysis (PD) is a modality of renal replacement therapy in which the high volumes of available PD effluent (PDE) represents a rich source of biomarkers for monitoring disease and therapy. Although this information could help guide the management of PD patients, little is known about the potential of PDE to define pathomechanism-associated molecular signatures in PD.</p> <p>We therefore subjected PDE to a high-performance multiplex proteomic analysis after depletion of highly-abundant plasma proteins and enrichment of low-abundance proteins...
December 4, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/29207016/microrna-21-promotes-the-progression-of-peritoneal-fibrosis-through-the-activation-of-the-tgf-%C3%AE-smad-signaling-pathway-an-in-vitro-and-in-vivo-study
#2
Ya-Li Ma, Fang Chen, Su-Xia Yang, Bao-Ping Chen, Jun Shi
The present study aimed to explore the roles of microRNA-21 (miR‑21) and the transforming growth factor-β (TGF-β)/Smad signaling pathway in the development of peritoneal fibrosis (PF). First, dialysis effluents from 30 patients with PF were collected, and after the establishment of a mouse model of PF, hematoxylin and eosin (H&E) and Masson's staining were used to observe peritoneal tissues, inflammatory cells and blood vessels. High glucose was used to stimulate human peritoneal mesothelial cell lines and these stimulated cells were then transfected with miR‑21 inhibitor...
November 17, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29179471/histone-deacetylase-6-inhibition-counteracts-the-epithelial-mesenchymal-transition-of-peritoneal-mesothelial-cells-and-prevents-peritoneal-fibrosis
#3
Liuqing Xu, Na Liu, Hongwei Gu, Hongrui Wang, Yingfeng Shi, Xiaoyan Ma, Shuchen Ma, Jun Ni, Min Tao, Andong Qiu, Shougang Zhuang
The role of histone deacetylase 6 (HDAC6) in peritoneal fibrosis remains unknown. In this study, we examined the effect of HDAC6 inhibition on the epithelial-mesenchymal transition (EMT) of peritoneal mesothelial cells and development of peritoneal fibrosis. Treatment with tubastatin A, a highly selective HDAC6 inhibitor, or silencing of HDAC6 with siRNA inhibited transforming growth factor β1-induced EMT, as evidenced by decreased expression of α-smooth muscle actin, collagen I and preserved expression of E-cadherin in cultured human peritoneal mesothelial cells...
October 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/29165602/deletion-of-connective-tissue-growth-factor-ameliorates-peritoneal-fibrosis-by-inhibiting-angiogenesis-and-inflammation
#4
Naohiro Toda, Kiyoshi Mori, Masato Kasahara, Kenichi Koga, Akira Ishii, Keita P Mori, Keisuke Osaki, Masashi Mukoyama, Motoko Yanagita, Hideki Yokoi
Background: Connective tissue growth factor (CTGF/CCN2) regulates the signalling of other growth factors and promotes fibrosis. CTGF is increased in mice and humans with peritoneal fibrosis. Inhibition of CTGF has not been examined as a potential therapeutic target for peritoneal fibrosis because systemic CTGF knockout mice die at the perinatal stage. Methods: To study the role of CTGF in peritoneal fibrosis of adult mice, we generated CTGF conditional knockout (cKO) mice by crossing CTGF floxed mice with RosaCreERT2 mice...
November 17, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29163160/aberrant-wnt-beta-catenin-pathway-activation-in-dialysate-induced-peritoneal-fibrosis
#5
Yuanyuan Guo, Lin Sun, Li Xiao, Rong Gou, Yudong Fang, Yan Liang, Ruiqiang Wang, Ningjun Li, Fuyou Liu, Lin Tang
Peritoneal dialysis (PD)-associated peritoneal fibrosis is a chronic progress which induces ultrafiltration failure. It remains a challenge to prevent the progression of PD-associated fibrosis in clinic practice. Wnt/β-catenin pathway plays important role in many severe fibrotic diseases, here we investigated its contribution to the development of peritoneal damage. We isolated mesothelial cells (MC) from the effluent of PD patients and found that the expressions of Wnt1, Wnt5a, β-catenin, and LEF1 were increased in patients with more than 1-year PD compared with patients who just started with PD (<1 month)...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29137389/targeting-src-attenuates-peritoneal-fibrosis-and-inhibits-the-epithelial-to-mesenchymal-transition
#6
Jun Wang, Li Wang, Liuqing Xu, Yingfeng Shi, Feng Liu, Hualin Qi, Na Liu, Shougang Zhuang
Src has been reported to mediate tissue fibrosis in several organs, but its role in peritoneal fibrosis remains unknown. In this study, we evaluated the therapeutic effect of KX2-391, a highly selective inhibitor of Src, on the development of peritoneal fibrosis in a rat model. Daily intraperitoneal injections of chlorhexidine gluconate induced peritoneal fibrosis, as indicated by thickening of the submesothelial area with an accumulation of collagen fibrils and activation of myofibroblasts. This was accompanied by time-dependent phosphorylation of Src at tyrosine 416...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29128402/an-anti-inflammatory-chalcone-derivative-prevents-heart-and-kidney-from-hyperlipidemia-induced-injuries-by-attenuating-inflammation
#7
Xiong Chen, Weihui Yu, Weixin Li, Hailing Zhang, Weijian Huang, Jingying Wang, Weiwei Zhu, Qilu Fang, Chao Chen, Xiaokun Li, Guang Liang
Obesity is a growing pandemic in both developed and developing countries. Lipid overload in obesity generates a chronic, low-grade inflammation state. Increased inflammation in heart and renal tissues has been shown to promote the progression of heart and renal damage in obesity. Previously, we found that a novel chalcone derivative, L6H21, inhibited lipopolysaccharide-induced inflammatory response. In the present study, we investigated the effects of L6H21 on inflammatory responses in culture and in animal models of lipid overload...
November 8, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29081476/sterile-nodular-panniculitis-with-lung-and-lymph-node-involvement-in-a-siberian-tiger-panthera-tigris-altica
#8
Shou-Ping Hu, Zhuo Zhang, Jiao-Er Zhang, Xue-Hui Cai, Hiroyuki Nakayama, Xi-Jun He
A 2- to 4-year-old uncastrated male Siberian tiger (Panthera tigris altica) bred in a local wild animal park presented with generalized clinical signs including abdominal pain, fever, lethargy, and anorexia, along with subcutaneous nodules along the trunk. The patient subsequently died of chronic, progressive dyspnea despite 45 days of antibiotic treatment. At necropsy, mesenteric fat inflammation and multiple subcutaneous, peritoneal, and intraabdominal nodules were observed. The lungs demonstrated congestion and heavy coagulation, and necrotic foci were observed on the cut surface...
October 30, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/29077259/autophagy-promotes-fibrosis-and-apoptosis-in-the-peritoneum-during-long-term-peritoneal-dialysis
#9
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
Long-term peritoneal dialysis is accompanied by functional and histopathological alterations in the peritoneal membrane. In the long process of peritoneal dialysis, high-glucose peritoneal dialysis solution (HGPDS) will aggravate the peritoneal fibrosis, leading to decreased effectiveness of peritoneal dialysis and ultrafiltration failure. 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...
October 27, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29070585/nlrc5-deficiency-ameliorates-diabetic-nephropathy-through-alleviating-inflammation
#10
Peipei Luan, Jianhui Zhuang, Jun Zou, Hailing Li, Ping Shuai, Xiaopeng Xu, Yifan Zhao, Wenxin Kou, Shuya Ji, Ai Peng, Yawei Xu, Qing Su, Weixia Jian, Wenhui Peng
NOD-like receptor family caspase recruitment domain family domain containing 5 (NLRC5) has important roles in inflammation and innate immunity. NLRC5 was highly expressed in kidney from streptozotocin-induced diabetic mice, db/db mice and patients with diabetes. Based on that evidence, the present study was designed to explore the roles of NLRC5 in the progression of diabetic nephropathy (DN). We examined kidney injury, including inflammation and fibrosis in Nlrc5 gene knockout (Nlrc5(-/-)) and wild-type (WT) diabetic mice...
October 25, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29066080/piper-nigrum-extract-ameliorated-allergic-inflammation-through-inhibiting-th2-th17-responses-and-mast-cells-activation
#11
Thi Tho Bui, Chun Hua Piao, Chang Ho Song, Hee Soon Shin, Dong-Hwa Shon, Ok Hee Chai
Piper nigrum (Piperaceae) is commonly used as a spice and traditional medicine in many countries. P. nigrum has been reported to have anti-oxidant, anti-bacterial, anti-tumor, anti-mutagenic, anti-diabetic, and anti-inflammatory properties. However, the effect of P. nigrum on allergic asthma has not been known. This study investigated the effect of P. nigrum ethanol extracts (PNE) on airway inflammation in asthmatic mice model. In the ovalbumin (OVA)-induced allergic asthma model, we analysed the number of inflammatory cells and cytokines production in bronchoalveolar lavage fluid (BALF) and lung tissue; histological structure; as well as the total immunoglobulin (Ig)E, anti-OVA IgE, anti-OVA IgG1 and histamine levels in serum...
October 16, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/29033853/proinflammatory-effect-of-high-glucose-concentrations-on-hmrsv5-cells-via-the-autocrine-effect-of-hmgb1
#12
Yuening Chu, Yi Wang, Zhihuang Zheng, Yuli Lin, Rui He, Jun Liu, Xuguang Yang
Background: Peritoneal fibrosis, in which inflammation and apoptosis play crucial pathogenic roles, is a severe complication associated with the treatment of kidney failure with peritoneal dialysis (PD) using a glucose-based dialysate. Mesothelial cells (MCs) take part in the inflammatory processes by producing various cytokines and chemokines, such as monocyte chemoattractant protein 1 (MCP-1) and interleukin 8 (IL-8). The apoptosis of MCs induced by high glucose levels also contributes to complications of PD...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28992851/initiation-of-peritoneal-dialysis-in-the-first-weeks-after-catheter-insertion-a-comparison-of-a-neutral-ph-low-gdp-pd-fluid-and-a-conventional-pd-fluid%C3%A2
#13
Karima Farhat, Frans J van Ittersum, Pieter M Ter Wee, Nanne J Paauw, Robbert H J Beelen, Caroline E Douma
BACKGROUND: Chronic exposure to peritoneal dialysis (PD) fluid is associated with development of functional and structural alterations of the peritoneal membrane. The exact time point at which these changes actually occur is not known. Whether changes to the peritoneum occur immediately after installation of PD fluids and whether there is a difference between neutral-pH, low glucose degradation product (low-GDP) PD fluids and conventional PD fluids is not known either. MATERIALS AND METHODS: We performed an observational study...
October 10, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28990064/gaseous-signalling-molecule-so2-via-hippo%C3%A2-mst-pathway-to-improve-myocardial-fibrosis-of-diabetic-rats
#14
Maojun Liu, Shengquan Liu, Wenting Tan, Fen Tang, Junrong Long, Zining Li, Biao Liang, Chun Chu, Jun Yang
Recent studies have indicated the existence of an endogenous sulfur dioxide (SO2)‑generating system in the cardiovascular system. The present study aimed to discuss the function and regulatory mechanism of gaseous signal molecule SO2 in inhibiting apoptosis and endoplasmic reticulum stress (ERS) via the Hippo‑MST signaling pathway to improve myocardial fibrosis of diabetic rats. A total of 40 male Sprague‑Dawley rats were randomly divided into four groups (10 rats per group): Normal control group (control group), diabetic rats group [streptozotocin (STZ) group], SO2 intervention group (STZ+SO2 group) and diabetes mellitus rats treated with L‑Aspartic acid β‑hydroxamate (HDX) group (HDX group)...
December 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28980533/rosuvastatin-administered-intraperitoneally-reduces-the-formation-of-postoperative-adhesions-in-rats
#15
Stefan Chiorescu, Nicolae Ovidiu Grad, Ion Aurel Mironiuc, Octavian Aurel Andercou
OBJECTIVES: The purpose of the present experimental research was to assess the efficacy of intraperitoneal administration of rosuvastatin in preventing the formation of postoperative peritoneal adhesions. MATERIAL AND METHOD: Peritoneal adhesions were induced in 120 male rats of the Wistar-Bratislava breed, divided into 4 groups (n=30), using a parietal and visceral abrasion model. Group I was designated as the control group; in the case of group II, a saline solution was administered intraperitoneally, while in the case of groups III and IV, rosuvastatin solution with a concentration of 10 mg/kg and 5 mg/kg, respectively, was administered in a single dose, during laparotomy...
September 26, 2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28978530/tgf-%C3%AE-1-vegf-a-pathway-induces-neoangiogenesis-with-peritoneal-fibrosis-in-patients-undergoing-peritoneal-dialysis
#16
Tetsuyoshi Kariya, Hayato Nishimura, Masashi Mizuno, Yasuhiro Suzuki, Yoshihisa Matsukawa, Fumiko Sakata, Shoichi Maruyama, Yoshifumi Takei, Yasuhiko Ito
The characteristic features of chronic peritoneal injury with peritoneal dialysis (PD) are submesothelial fibrosis and neoangiogenesis. Transforming growth factor (TGF)-β and vascular endothelial growth factor (VEGF)-A are the main mediators of fibrosis and neoangiogenesis, respectively; however, the effect of the interaction between them on the peritoneum is not well known. In this study, we investigated the relationship between TGF-β1 and VEGF-A in inducing peritoneal fibrosis using human tissues and dialysate, cultured cells, and animal models...
October 4, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28977410/endomyocardial-fibrosis-in-a-context-of-peritonitis
#17
Alexandre Leger, Alexia Hennig, Jerome Peyrou, Hubert Cochet
No abstract text is available yet for this article.
November 1, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28972947/the-peritoneum-health-disease-and-perspectives-regarding-tissue-engineering-and-cell-therapies
#18
Ronaldo J F C do Amaral, Kátia D Arcanjo, Márcia C El-Cheikh, Felipe L de Oliveira
There are several pathologies associated with the peritoneum, such as mesothelioma and peritonitis. Moreover, the peritoneum is widely used in ultrafiltration procedures, i.e., peritoneal dialysis, presenting advantages over hemodialysis. On the other hand, ultrafiltration failure may lead to dialysis-induced fibrosis and hypervolemia. Therefore, the pathophysiological study of this tissue is of extreme biomedical importance. Studies investigating the biology of the cells dwelling in the peritoneum wall provide evidence of their plasticity and progenitor features...
October 4, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28958769/the-value-of-18-f-fdg-pet-ct-in-the-distinction-between-retroperitoneal-fibrosis-and-its-malignant-mimics
#19
Yiwen Wang, Zhiwei Guan, Dai Gao, Gui Luo, Kunpeng Li, Yurong Zhao, Xiuru Wang, Jie Zhang, Jingyu Jin, Zheng Zhao, Chunhua Yang, Jianglin Zhang, Jian Zhu, Feng Huang
OBJECTIVE: To discuss the utility of (18)F-fluorodeoxyglucose (FDG) positron emission tomography/computerized tomography (PET/CT) in the diagnosis of idiopathic retroperitoneal fibrosis (iRPF). METHODS: IRPF patients diagnosed between September 2011 and June 2016 were included. Retroperitoneal malignancy patients were included as control. The morphological features and FDG uptake of retroperitoneal lesions were measured along with lymph node (LN) mapping. RESULTS: Seventy-one iRPF patients were included...
August 3, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28943000/histological-and-immunohistochemical-study-of-cardiac-telocytes-in-a-rat-model-of-isoproterenol-induced-myocardial-infarction-with-a-reference-to-the-effect-of-grape-seed-extract
#20
Mai Salah Nour, Nahla Reda Sarhan, Shireen A Mazroa, Salwa A Gawish
INTRODUCTION: Cardiac telocytes (TCs) represent a unique type of cells that make a supportive network for stem cells that contribute in cardiac renewal, but their role during myocardial infarction (MI) is not clear. Grape seed extract (GSE) is a powerful natural antioxidant. AIM OF THE WORK: Quantitative study of cardiac TCs in a rat model of Isoproterenol (ISO)-induced MI, and to evaluate the effect of GSE on TCs and MI progression. MATERIALS AND METHODS: Seventy adult male albino rats were assigned into 4 groups; group I; control rats, group II received GSE (100mg/kg/day) dissolved in distilled water orally, group III received 2 intra-peritoneal injections of 85mg/kg ISO dissolved in saline on 14th and 15th day to induce MI, and group IV received GSE and ISO...
September 21, 2017: Acta Histochemica
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