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Peritoneal fibrosis

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https://www.readbyqxmd.com/read/27906064/treatment-with-rgdf11-does-not-improve-the-dystrophic-muscle-pathology-of-mdx-mice
#1
Fabrizio Rinaldi, Yu Zhang, Ricardo Mondragon-Gonzalez, Jeffrey Harvey, Rita C R Perlingeiro
BACKGROUND: Duchenne muscular dystrophy (DMD) is an inherited lethal muscle wasting disease characterized by cycles of degeneration and regeneration, with no effective therapy. Growth differentiation factor 11 (GDF11), a member of the TGF-β superfamily and myostatin homologous, has been reported to have the capacity to reverse age-related skeletal muscle loss. These initial findings led us to investigate the ability of GDF11 to promote regeneration in the context of muscular dystrophy and determine whether it could be a candidate to slow down or reverse the disease progression in DMD...
June 14, 2016: Skeletal Muscle
https://www.readbyqxmd.com/read/27890350/the-histophysiology-and-pathophysiology-of-the-peritoneum
#2
REVIEW
J O A M van Baal, K K Van de Vijver, R Nieuwland, C J F van Noorden, W J van Driel, A Sturk, G G Kenter, L G Rikkert, C A R Lok
The peritoneum is an extensive serous organ with both epithelial and mesenchymal features and a variety of functions. Diseases such as inflammatory peritonitis and peritoneal carcinomatosis can induce disturbance of the complex physiological functions. To understand the peritoneal response in disease, normal embryonic development, anatomy in healthy conditions and physiology of the peritoneum have to be understood. This review aims to summarize and discuss the literature on these basic peritoneal characteristics...
November 13, 2016: Tissue & Cell
https://www.readbyqxmd.com/read/27874969/idiopathic-myelofibrosis-accompanied-by-peritoneal-extramedullary-hematopoiesis-presenting-as-refractory-ascites-in-a-dog
#3
Yolandi Rautenbach, Amelia Goddard, Sarah J Clift
A 2.5-year-old spayed female American Pit Bull Terrier dog presented with a primary complaint of chronic refractory ascites. The dog's CBC displayed a moderate to severe macrocytic, hypochromic, nonregenerative anemia, and a moderate leukopenia as result of a moderate neutropenia and monocytopenia. Microscopic examination of the blood smear showed marked anisocytosis, mild polychromasia, mild acanthocytosis and ovalocytosis, moderate schistocytosis and poikilocytosis, and 4 metarubricytes/100 WBC. Abdominal ultrasonography revealed a homogenous, mild to moderately hyperechoic appearing liver as well as marked amounts of speckled anechoic to slightly hypoechoic peritoneal fluid...
November 22, 2016: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/27867039/peritoneal-dialysis-effluent-mir-21-and-mir-589-levels-correlate-with-longitudinal-change-in-peritoneal-transport-characteristics
#4
Cheuk-Chun Szeto, Kai-Ming Chow, Bonnie Ching-Ha Kwan, Phyllis Mei-Shan Cheng, Cathy Choi-Wan Luk, Jack Kit-Chung Ng, Man-Ching Law, Chi-Bon Leung, Philip Kam-Tao Li
BACKGROUND: The role of microRNA (miRNA) in peritoneal fibrosis and longitudinal change in transport is uncertain. METHODS: We studied 80 new peritoneal dialysis (PD) patients. Peritoneal transport was determined by standard peritoneal equilibration test (PET) of creatinine at baseline. Based on published literature, PD effluent levels of 10 miRNA targets were quantified. PET and miRNA quantification were repeated one year later in 46 patients. RESULTS: Baseline PD effluent levels of all targets tested had modest but significant correlation with peritoneal transport parameters...
November 17, 2016: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/27861745/clinical-signs-of-fibrosis-in-small-intestinal-neuroendocrine-tumours
#5
K Daskalakis, A Karakatsanis, P Stålberg, O Norlén, P Hellman
BACKGROUND: In patients with small intestinal neuroendocrine tumours (SI-NETs), serotonin and other cytokines released from tumour cells may induce fibrosis, leading to carcinoid heart disease and abdominal fibrotic reactions. The aim of this study was to assess the prevalence, clinical complications and management of this reaction in the abdomen. METHODS: This was a retrospective cohort study of patients with SI-NETs diagnosed between 1985 and 2015. Clinical data, outcomes, radiological findings, and surgical and radiological interventions were reviewed...
November 10, 2016: British Journal of Surgery
https://www.readbyqxmd.com/read/27805599/phenotypic-characterization-of-macrophages-from-rat-kidney-by-flow-cytometry
#6
Alfonso Rubio-Navarro, Melania Guerrero-Hue, Beatriz Martín-Fernandez, Isabel Cortegano, Elena Olivares-Alvaro, Natalia de Las Heras, Mario Alía, Belén de Andrés, María Luisa Gaspar, Jesús Egido, Juan Antonio Moreno
There is increasing evidence suggesting the important role of inflammation and, subsequently, macrophages in the development and progression of renal disease. Macrophages are heterogeneous cells that have been implicated in kidney injury. Macrophages may be classified into two different phenotypes: classically activated macrophages (M1 macrophages), that release pro-inflammatory cytokines and promote fibrosis; and alternatively activated macrophages (M2 macrophages) that are associated with immunoregulatory and tissue-remodeling functions...
October 18, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27795463/histopathological-changes-in-the-pancreas-of-cattle-with-abdominal-fat-necrosis
#7
Chikako Tani, Watanyoo Pratakpiriya, Mineto Tani, Takenori Yamauchi, Takuya Hirai, Ryoji Yamaguchi, Hitoshi Ano, Hiromu Katamoto
The association between pancreatic disorder and abdominal fat necrosis in cattle remains unclear. The pancreases of 29 slaughtered cattle with or without fat necrosis were collected to investigate pathological changes. Japanese Black (JB) cattle were classified into the FN group (with abdominal fat necrosis; n=9) and N group (without fat necrosis; n=5). The pancreases were also collected from 15 Holstein Friesian (HF) cows. All JB cattle showed high body condition scores. Regarding the pathological findings, fatty pancreas which involves adipocyte infiltration into the pancreas and fat necrosis (saponification) were observed in 25 and 27 cases, respectively...
October 30, 2016: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/27790149/co-micronized-palmitoylethanolamide-polydatin-treatment-causes-endometriotic-lesion-regression-in-a-rodent-model-of-surgically-induced-endometriosis
#8
Rosanna Di Paola, Roberta Fusco, Enrico Gugliandolo, Rosalia Crupi, Maurizio Evangelista, Roberta Granese, Salvatore Cuzzocrea
Endometriosis is a chronic, painful disease characterized by the presence of endometrial glands and stroma outside the uterine cavity. Palmitoylethanolamide (PEA), an endogenous fatty acid amide, has anti-inflammatory and neuroprotective effects. PEA lacks free radical scavenging activity, unlike polydatin (PLD), a natural precursor of resveratrol. The aim of this study was to investigate the effect of orally administered co-micronized PEA/polydatin [m(PEA/PLD)] in an autologous rat model of surgically induced endometriosis...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27789254/estimating-the-burden-of-invasive-and-serious-fungal-disease-in-the-united-kingdom
#9
Matthew Pegorie, David W Denning, William Welfare
BACKGROUND: The burden of fungal disease in the UK is unknown. Only limited data are systematically collected. We have estimated the annual burden of invasive and serious fungal disease. METHODS: We used several estimation approaches. We searched and assessed published estimates of incidence, prevalence or burden of specific conditions in various high risk groups. Studies with adequate internal and external validity allowed extrapolation to estimate current UK burden...
October 24, 2016: Journal of Infection
https://www.readbyqxmd.com/read/27769811/aryl-hydrocarbon-receptor-ligands-in-cigarette-smoke-induce-production-of-interleukin-22-to-promote-pancreatic-fibrosis-in-models-of-chronic-pancreatitis
#10
Jing Xue, Qinglan Zhao, Vishal Sharma, Linh P Nguyen, Yvonne N Lee, Kim L Pham, Mouad Edderkaoui, Stephen J Pandol, Walter Park, Aida Habtezion
BACKGROUND & AIMS: Cigarette smoke has been identified as an independent risk factor for chronic pancreatitis (CP). Little is known about the mechanisms by which smoking promotes development of CP. We assessed the effects of aryl hydrocarbon receptor (AhR) ligands found in cigarette smoke on immune cell activation in humans and pancreatic fibrosis in animal models of CP. METHODS: We obtained serum samples from patients with CP treated at Stanford University hospital and healthy individuals (controls) and isolated CD4(+) T cells...
December 2016: Gastroenterology
https://www.readbyqxmd.com/read/27741171/gut-microbiota-and-the-liver-a-tale-of-2-cities-a-narrative-view-in-2-acts
#11
Maurizio Koch
Microbes are mostly important for the digestion of food, the absorption of some micronutrients, and the production of vitamins. The microbiota stimulates lymphoid structures in the gastrointestinal mucosa and decrease pathogens by competing for nutrients and space. Bacterial translocation is defined as the escape of gut bacteria and their products through the intestinal mucosa to the outside of the intestine as portovenous or systemic circulation. This is induced by a leaky gut barrier. There is evidence for a role of intestinal permeability in the pathogenesis of nonalcoholic fatty liver disease...
November 2016: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/27725274/mefunidone-ameliorates-renal-inflammation-and-tubulointerstitial-fibrosis-via-suppression-of-ikk%C3%AE-phosphorylation
#12
Jin Zhang, Linfeng Zheng, Xiangning Yuan, Chunyan Liu, Qiongjing Yuan, Feifei Xie, Sisi Qiu, Zhangzhe Peng, Yiting Tang, Jie Meng, Jiao Qin, Gaoyun Hu, Lijian Tao
Mefunidone is a new pyridone agent that attenuates renal tubulointerstitial fibrosis. However, the signaling pathways involved in the effect of mefunidone on renal tubulointerstitial fibrosis have not been well explained. Inflammatory response initiates and promotes renal tubulointerstitial fibrosis, and the inhibitor of nuclear factor kappa-B kinase beta (IKKβ) is a master regulator of inflammation. This study is determined to clarify the influence of mefunidone on renal inflammation and the phosphorylation of IKKβ...
October 8, 2016: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/27722989/the-role-of-toll-like-receptor-4-in-high-glucose-induced-inflammatory-and-fibrosis-markers-in-human-peritoneal-mesothelial-cells
#13
Soon-Youn Choi, Hye-Myung Ryu, Ji-Young Choi, Jang-Hee Cho, Chan-Duck Kim, Yong-Lim Kim, Sun-Hee Park
PURPOSE: High glucose stimulates peritoneal inflammation and extracellular matrix accumulation in human peritoneal mesothelial cells (HPMCs). However, the roles of Toll-like receptor 4 (TLR4) and TLR2 in high-glucose-induced inflammation and fibrosis in peritoneal dialysis (PD) remain unclear. This study aimed to evaluate the effect of high glucose on TLR2 and TLR4 expression in HPMCs and to assess their impact on peritoneal inflammatory and fibrosis markers. METHODS: Using cultured HPMCs, TLRs expression by high-glucose (50 mM) stimulation was assessed by quantitative real-time PCR...
October 8, 2016: International Urology and Nephrology
https://www.readbyqxmd.com/read/27677197/can-platelet-rich-plasma-be-used-safely-in-intra-abdominal-operations
#14
F Kaya, K Kismet, H Ozer, V G Soylu, M E Duymus, Y A Akgun, A Demir, P Celepli, T Guclu, S Bolat, E Ertas
OBJECTIVES: In this study, it was aimed to investigate whether or not platelet‑rich plasma (PRP) causes intra-abdominal adhesions and therefore, whether or not PRP can be used safely in intra-abdominal operations. METHODS: Of the total of 35 animals, 5 were used as donors for the preparation of platelet‑rich plasma (PRP). The surgical procedures were performed on the remaining 30 animals. These rats were randomized and divided into 3 groups of 10. In Group 1, no adhesion induction was performed...
2016: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/27669222/keratinocyte-growth-factor-combined-with-a-sodium-hyaluronate-gel-inhibits-postoperative-intra-abdominal-adhesions
#15
Guangbing Wei, Cancan Zhou, Guanghui Wang, Lin Fan, Kang Wang, Xuqi Li
Postoperative intra-abdominal adhesion is a very common complication after abdominal surgery. One clinical problem that remains to be solved is to identify an ideal strategy to prevent abdominal adhesions. Keratinocyte growth factor (KGF) has been proven to improve the proliferation of mesothelial cells, which may enhance fibrinolytic activity to suppress postoperative adhesions. This study investigated whether the combined administration of KGF and a sodium hyaluronate (HA) gel can prevent intra-abdominal adhesions by improving the orderly repair of the peritoneal mesothelial cells...
2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27668155/experimental-systems-to-study-the-origin-of-the-myofibroblast-in-peritoneal-fibrosis
#16
REVIEW
Manreet Padwal, Peter J Margetts
Peritoneal fibrosis is one of the major complications occurring in long-term peritoneal dialysis patients as a result of injury. Peritoneal fibrosis is characterized by submesothelial thickening and fibrosis which is associated with a decline in peritoneal membrane function. The myofibroblast has been identified as the key player involved in the development and progression of peritoneal fibrosis. Activation of the myofibroblast is correlated with expansion of the extracellular matrix and changes in peritoneal membrane integrity...
September 2016: Kidney Research and Clinical Practice
https://www.readbyqxmd.com/read/27664471/death-receptor-3-promotes-chemokine-directed-leukocyte-recruitment-in-acute-resolving-inflammation-and-is-essential-for-pathological-development-of-mesothelial-fibrosis-in-chronic-disease
#17
William V Perks, Ravinder K Singh, Gareth W Jones, Jason P Twohig, Anwen S Williams, Ian R Humphreys, Philip R Taylor, Simon A Jones, Eddie C Y Wang
Death receptor 3 (DR3; TNFRSF25) and its tumor necrosis factor-like ligand TL1A (TNFSF15) control several processes in inflammatory diseases through the expansion of effector T cells and the induction of proinflammatory cytokines from myeloid and innate lymphoid cells. Using wild-type (DR3(+/+)) and DR3-knockout (DR3(-/-)) mice, we show that the DR3/TL1A pathway triggers the release of multiple chemokines after acute peritoneal inflammation initiated by a single application of Staphylococcus epidermidis supernatant, correlating with the infiltration of multiple leukocyte subsets...
November 2016: American Journal of Pathology
https://www.readbyqxmd.com/read/27634300/molecular-mechanisms-of-melatonin-in-the-reversal-of-lps-induced-emt-in-peritoneal-mesothelial-cells
#18
Shuaishuai Shi, Yiqiang Zhang, Wenbin Wen, Yine Zhao, Lin Sun
Peritoneal dialysis (PD)-associated peritoneal fibrosis is a serious complication in patients with chronic renal failure on dialysis maintenance. Studies have shown that patients on long‑term PD have chronic inflammation. The epithelial-to-mesenchymal transition (EMT) induced by inflammation is a major cause of peritoneal fibrosis and dysfunction. As a potent antioxidant property, melatonin has an antifibrotic effect. The present study investigated the effects of melatonin on lipopolysaccharide (LPS)‑induced EMT and examined the molecular mechanisms in peritoneal mesothelial cells using western blotting, reverse transcription‑polymerase chain reaction and immunofluorescence staining...
September 16, 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27575989/in-vivo-protective-effect-of-phosphatidylcholine-on-carbon-tetrachloride-induced-nephrotoxicity
#19
Sokho Kim, Ji-Young Na, Kibbeum Song, Jungkee Kwon
Phosphatidylcholine (PC) from egg yolk is a bioactive substance with various beneficial effects, including anti-inflammatory and anti-oxidant effects. Recently, this substance has been reported to prevent acute hepatotoxicity. In the present study, we aimed to evaluate the putative protective effect of PC on carbon tetrachloride (CCl4)-induced nephrotoxicity in ICR mice. Many previous studies demonstrated that CCl4 induces nephrotoxicity resulting in renal oxidative damage. CCl4 in corn oil (0.1ml, 1.2g/kg) was intra-peritoneally injected into 7-week-old ICR mice twice a week...
August 26, 2016: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/27568034/bowel-strangulation-caused-by-massive-intraperitoneal-adhesion-due-to-effective-chemotherapy-for-multiple-peritoneal-metastases-originating-from-descending-colon-cancer
#20
Nobutoshi Horii, Daisuke Morioka, Kazuya Yamaguchi, Yoshiki Sato, Masaru Miura, Mikiko Tanabe
We describe a case of bowel strangulation caused by massive peritoneal adhesion as a result of effective chemotherapy. A 71-year-old man, who had obstructive descending colon cancer with massive peritoneal metastases and, therefore, received palliative surgery consisting of diverting colostomy and sampling of peritoneal nodules, developed bowel strangulation on day 4 of the 2nd course of chemotherapy, including irinotecan, l-leucovorin, and 5-fluorouracil. Emergent celiotomy showed a massive intraperitoneal adhesion formed around several intestinal loops, which were not observed at the prior surgery...
October 2016: Clinical Journal of Gastroenterology
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