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bacterial peritonitis

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https://www.readbyqxmd.com/read/27932520/myeloid-derived-nf-%C3%AE%C2%BAb-negative-regulation-of-pu-1-and-c-ebp-%C3%AE-driven-pro-inflammatory-cytokine-production-restrains-lps-induced-shock
#1
Simone Vanoni, Yi-Ting Tsai, Amanda Waddell, Lisa Waggoner, Jared Klarquist, Senad Divanovic, Kasper Hoebe, Kris A Steinbrecher, Simon P Hogan
Sepsis is a life-threatening event predominantly caused by Gram-negative bacteria. Bacterial infection causes a pronounced macrophage (MΦ) and dendritic cell activation that leads to excessive pro-inflammatory cytokine IL-1β, IL-6 and TNF-α production (cytokine storm), resulting in endotoxic shock. Previous experimental studies have revealed that inhibiting NF-κB signaling ameliorates disease symptoms; however, the contribution of myeloid p65 in endotoxic shock remains elusive. In this study, we demonstrate increased mortality in mice lacking p65 in the myeloid lineage (p65(Δmye)) compared with wild type mice upon ultra-pure LPS challenge...
December 8, 2016: Innate Immunity
https://www.readbyqxmd.com/read/27929923/impact-of-pre-transplant-bacterial-infections-on-post-operative-outcomes-in-patients-after-liver-transplantation
#2
Im-Kyung Kim, Joon Seong Park, Man Ki Ju
BACKGROUND: In contrast to studies evaluating the negative effect of bacterial infections on clinical outcomes after liver transplantation, there is little evidence with regard to pre-transplant bacterial infections. We aimed to investigate the impact of pre-transplant bacterial infections on post-transplant outcomes in patients after liver transplantation. PATIENTS AND METHODS: We retrospectively analyzed clinical data from 33 consecutive patients who underwent primary liver transplantations...
December 8, 2016: Surgical Infections
https://www.readbyqxmd.com/read/27920543/intestinal-permeability-in-a-patient-with-liver-cirrhosis
#3
REVIEW
Jonathan Manuel Aguirre Valadez, Liliana Rivera-Espinosa, Osvely Méndez-Guerrero, Juan Luis Chávez-Pacheco, Ignacio García Juárez, Aldo Torre
Liver cirrhosis is a worldwide public health problem, and patients with this disease are at high risk of developing complications, bacterial translocation from the intestinal lumen to the mesenteric nodes, and systemic circulation, resulting in the development of severe complications related to high mortality rate. The intestinal barrier is a structure with a physical and biochemical activity to maintain balance between the external environment, including bacteria and their products, and the internal environment...
2016: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/27917877/ascites-neutrophil-function-is-significantly-impaired-in-patients-with-decompensated-cirrhosis-but-can-be-restored-by-autologous-plasma-incubation
#4
Cornelius Engelmann, Christina Becker, Andreas Boldt, Toni Herta, Albrecht Boehlig, Katrin Splith, Moritz Schmelzle, Niklas Mueller, Sandra Krohn, Hans-Michael Tautenhahn, Michael Bartels, Ulrich Sack, Thomas Berg
Systemic immune cell dysfunction is a typical feature of liver diseases and increases the risk of bacterial infection, especially spontaneous bacterial peritonitis. We evaluated functional properties of neutrophil granulocytes in blood and ascites of patients both with and without decompensated cirrhosis. We collected blood and ascites samples from 63 patients with cirrhosis and eight without cirrhosis. Phagocytosis activity (PA) and oxidative burst activity (OBA) were evaluated after ex vivo stimulation with E...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917793/high-dose-oral-furosemide-with-salt-ingestion-in-the-treatment-of-refractory-ascites-of-liver-cirrhosis
#5
Tolga Yakar, Mehmet Demir, Ozlem Dogan, Alper Parlakgumus, Birol Ozer, Ender Serin
PURPOSE: We aimed to evaluate and compare the efficacy and safety of high-dose furosemide+salt orally by comparing HSS+ furosemide (i.v.) and repeated paracentesis in patients with RA. METHODS: This was a prospective study of 78 cirrhotic patients with RA, randomized into three groups: Group A (n= 25) i.v. furosemide (200-300 mg bid) and 3% hypotonic saline solution (HSS) (once or twice a day); Group B (n= 26) oral furosemide tablets (360-520 mg bid) and salt (2...
December 1, 2016: Clinical and Investigative Medicine. Médecine Clinique et Experimentale
https://www.readbyqxmd.com/read/27898519/optimizing-the-outcomes-associated-with-spontaneous-bacterial-peritonitis
#6
Rinjal Brahmbhatt, Elliot B Tapper
No abstract text is available yet for this article.
November 28, 2016: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/27892709/gut-borne-saccharomyces-cerevisiae-a-promising-candidate-for-the-formulation-of-feed-additives-modulates-immune-system-and-gut-microbiota
#7
G García, C Dogi, A de Moreno de LeBlanc, C Greco, L Cavaglieri
The aim was to evaluate the effect of Saccharomyces cerevisiae RC016 on immune parameters and gut microbiota in healthy mice. Animals received S. cerevisiae RC016 for 10 days. Microbial translocation to liver and changes in some bacterial populations in caecum were determined. Immune stimulation was assessed at gut level (measure ofimmunoglobulin A (IgA)(+) cells and luminal cytokine profile) and by evaluating the activity of peritoneal macrophages. Oral administration of S. cerevisiae RC016 did not induce microbial translocation to liver...
November 30, 2016: Beneficial Microbes
https://www.readbyqxmd.com/read/27887882/c-type-lectin-receptor-dcar-recognizes-mycobacterial-phosphatidyl-inositol-mannosides-to-promote-a-th1-response-during-infection
#8
Kenji Toyonaga, Shota Torigoe, Yoshitomo Motomura, Takane Kamichi, Jennifer M Hayashi, Yasu S Morita, Naoto Noguchi, Yasushi Chuma, Hideyasu Kiyohara, Kazuhiro Matsuo, Hiroshi Tanaka, Yoshiko Nakagawa, Tetsushi Sakuma, Masaki Ohmuraya, Takashi Yamamoto, Masayuki Umemura, Goro Matsuzaki, Yasunobu Yoshikai, Ikuya Yano, Tomofumi Miyamoto, Sho Yamasaki
Phosphatidyl-inositol mannosides (PIM) are glycolipids unique to mycobacteria and other related bacteria that stimulate host immune responses and are implicated in mycobacteria pathogenicity. Here, we found that the FcRγ-coupled C-type lectin receptor DCAR (dendritic cell immunoactivating receptor; gene symbol Clec4b1) is a direct receptor for PIM. Mycobacteria activated reporter cells expressing DCAR, and delipidation of mycobacteria abolished this activity. Acylated PIMs purified from mycobacteria were identified as ligands for DCAR...
November 16, 2016: Immunity
https://www.readbyqxmd.com/read/27884476/systemic-immunization-with-rpotd-reduces-streptococcus-pneumoniae-nasopharyngeal-colonization-in-mice
#9
T R Converso, C Goulart, D Rodriguez, M Darrieux, L C C Leite
Streptococcus pneumoniae (pneumococcus) is a human pathogen that can cause otitis media, pneumonia and, in severe cases, meningitis and bacteremia. The pneumococcus expresses PotD, a protein belonging to the polyamines transporter complex called PotABCD. PotD is a membrane-associated protein that binds polyamines and has been shown to be important for virulence. In this work we demonstrate that subcutaneous immunization with rPotD reduces the bacterial load in the nasal tissue of mice, following intranasal challenge with a type 6B pneumococcus...
November 21, 2016: Vaccine
https://www.readbyqxmd.com/read/27884207/potential-contribution-of-the-uterine-microbiome-in-the-development-of-endometrial-cancer
#10
Marina R S Walther-António, Jun Chen, Francesco Multinu, Alexis Hokenstad, Tammy J Distad, E Heidi Cheek, Gary L Keeney, Douglas J Creedon, Heidi Nelson, Andrea Mariani, Nicholas Chia
BACKGROUND: Endometrial cancer studies have led to a number of well-defined but mechanistically unconnected genetic and environmental risk factors. One of the emerging modulators between environmental triggers and genetic expression is the microbiome. We set out to inquire about the composition of the uterine microbiome and its putative role in endometrial cancer. METHODS: We undertook a study of the microbiome in samples taken from different locations along the female reproductive tract in patients with endometrial cancer (n = 17), patients with endometrial hyperplasia (endometrial cancer precursor, n = 4), and patients afflicted with benign uterine conditions (n = 10)...
November 25, 2016: Genome Medicine
https://www.readbyqxmd.com/read/27870228/dialysate-bacterial-endotoxin-as-a-prognostic-indicator-of-peritoneal-dialysis-related-peritonitis
#11
Cheuk-Chun Szeto, Ka-Bik Lai, Kai-Ming Chow, Bonnie Ching-Ha Kwan, Man-Ching Law, Wing-Fai Pang, Terry King-Wing Ma, Chi-Bon Leung, Philip Kam-Tao Li
Peritonitis is the major complication of peritoneal dialysis (PD). The aim of our present study is to explore the prognostic value of endotoxin level in PD effluent for the prediction of treatment failure in PD-related peritonitis. We studied 325 peritonitis episodes in 223 patients. PD effluent (PDE) was collected every 5 days for endotoxin level and leukocyte count. Patients were followed for relapsing or recurrent peritonitis. We found 20 episodes (6.2%) had primary treatment failure; 41 (12.6%) developed relapsing, 19 (5...
December 2016: Nephrology
https://www.readbyqxmd.com/read/27867196/extracellular-adp-facilitates-monocyte-recruitment-in-bacterial-infection-via-erk-signaling
#12
Xiaoyu Zhang, Juliang Qin, Junyan Zou, Zhangsheng Lv, Binghe Tan, Jueping Shi, Yihan Zhao, Hua Ren, Mingyao Liu, Min Qian, Bing Du
As the most prominent clinical drug targets for the inhibition of platelet aggregation, P2Y12 and P2Y13 have been found to be highly expressed in both platelets and macrophages. However, the roles and function of P2Y12/13 in the regulation of macrophage-mediated innate immune responses remain unclear. Here, we demonstrate that adenosine 5'-diphosphate (ADP), the endogenous ligand of P2Y1, P2Y12 and P2Y13, was released both in E. coli-infected mice and from macrophages treated with either lipopolysaccharide (LPS) or Pam3CSK4...
November 21, 2016: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/27866837/high-density-lipoproteins-exert-pro-inflammatory-effects-on-macrophages-via-passive-cholesterol-depletion-and-pkc-nf-%C3%AE%C2%BAb-stat1-irf1-signaling
#13
Emiel P C van der Vorst, Kosta Theodorou, Yongzheng Wu, Marten A Hoeksema, Pieter Goossens, Christina A Bursill, Taghi Aliyev, Leonie F A Huitema, Sander W Tas, Ine M J Wolfs, Marijke J E Kuijpers, Marion J Gijbels, Casper G Schalkwijk, Debby P Y Koonen, Shahla Abdollahi-Roodsaz, Kimberly McDaniels, Chih-Chieh Wang, Michael Leitges, Toby Lawrence, Jogchum Plat, Miranda Van Eck, Kerry-Anne Rye, Lhousseine Touqui, Menno P J de Winther, Erik A L Biessen, Marjo M P C Donners
Membrane cholesterol modulates a variety of cell signaling pathways and functions. While cholesterol depletion by high-density lipoproteins (HDLs) has potent anti-inflammatory effects in various cell types, its effects on inflammatory responses in macrophages remain elusive. Here we show overt pro-inflammatory effects of HDL-mediated passive cholesterol depletion and lipid raft disruption in murine and human primary macrophages in vitro. These pro-inflammatory effects were confirmed in vivo in peritoneal macrophages from apoA-I transgenic mice, which have elevated HDL levels...
November 16, 2016: Cell Metabolism
https://www.readbyqxmd.com/read/27861767/antibiotic-resistance-in-healthcare-related-and-nosocomial-spontaneous-bacterial-peritonitis
#14
Philipp Lutz, Hans Dieter Nischalke, Benjamin Krämer, Felix Goeser, Dominik J Kaczmarek, Stefan Schlabe, Marijo Parcina, Jacob Nattermann, Achim Hoerauf, Christian P Strassburg, Ulrich Spengler
BACKGROUND: Spontaneous bacterial peritonitis (SBP) can be life-threatening in patients with liver cirrhosis. In contrast to community-acquired SBP, no standard treatment has been established for healthcare-related and nosocomial SBP. PATIENTS AND METHODS: We prospectively collected healthcare-related and nosocomial SBP cases from March 2012 till February 2016 at the Department of Internal Medicine I of the University of Bonn and analysed the prevalence of antibiotic resistance among the isolated bacteria...
November 15, 2016: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27859980/isolation-of-bacterial-dna-followed-by-sequencing-and-differing-cytokine-response-in-peritoneal-dialysis-effluent-help-in-identifying-bacteria-in-culture-negative-peritonitis
#15
Narayan Prasad, Kamini Singh, Amit Gupta, Kashi Nath Prasad
BACKGROUND: The treatment of peritoneal dialysis related culture negative peritonitis is empirical which increases the cost of therapy and moreover antibiotic resistance. We aimed the study to isolate bacterial DNA from PD effluent and indentify bacteria causing peritonitis in culture negative situations. We have also studied the cytokine response with different bacteria causing peritonitis. METHODS: We have isolated bacterial DNA from PD effluent of culture negative and culture positive peritonitis patients...
November 16, 2016: Nephrology
https://www.readbyqxmd.com/read/27856417/the-probiotic-mixture-vsl-3-reduces-colonic-inflammation-and-improves-intestinal-barrier-function-in-muc2-mucin-deficient-mice
#16
Manish Kumar, Vanessa Kissoon-Singh, Aralia Leon Coria, France Moreau, Kris Chadee
MUC2 mucin is the major glycoprotein in colonic mucus that separates intestinal microbiota from underlying host cells and serves as a food source for some eubacteria. MUC2 deficiency results in impaired epithelial barrier function, imbalance in gut microbiota and spontaneous colitis. Use of probiotics has been shown to have protective effect against colitis. In this study we tested whether the probiotic mixture VSL#3 required an intact mucin barrier to exert its beneficial effect using Muc2 mucin deficient (Muc2(-/-)) and Muc2(+/+) littermates...
November 17, 2016: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/27847654/the-case-for-improved-interprofessional-care-fatal-analgesic-overdose-secondary-to-acute-dental-pain-during-pregnancy
#17
Sarah K Y Lee, Rocio B Quinonez, Alice Chuang, Stephanie M Munz, Darya Dabiri
Prenatal oral health extends beyond the oral cavity, impacting the general well-being of the pregnant patient and her fetus. This case report follows a 19-year-old pregnant female presenting with acute liver failure secondary to acetaminophen overdose for management of dental pain following extensive dental procedures. Through the course of her illness, the patient suffered adverse outcomes including fetal demise, acute kidney injury, spontaneous bacterial peritonitis, and septic shock before eventual death from multiple organ failure...
2016: Case Reports in Dentistry
https://www.readbyqxmd.com/read/27847174/protective-efficacy-of-a-novel-alpha-hemolysin-subunit-vaccine-at62-against-staphylococcus-aureus-skin-and-soft-tissue-infections
#18
Rajan P Adhikari, Christopher D Thompson, M Javad Aman, Jean C Lee
Alpha hemolysin (Hla) is a pore-forming toxin produced by most Staphylococcus aureus isolates. Hla is reported to play a key role in the pathogenesis of staphylococcal infections, such as skin and soft tissue infection, pneumonia, and lethal peritonitis. This study makes use of a novel recombinant subunit vaccine candidate (AT62) that was rationally designed based on the Hla heptameric crystal structure. AT62 comprises a critical structural domain at the N terminus of Hla, and it has no inherent toxic properties...
December 7, 2016: Vaccine
https://www.readbyqxmd.com/read/27836913/immunoreceptor-cd300a-on-mast-cells-and-dendritic-cells-regulates-neutrophil-recruitment-in-a-murine-model-of-sepsis
#19
Kankanam Gamage Sanath Udayanga, Yoshiyuki Nakamura, Chigusa Nakahashi-Oda, Akira Shibuya
Sepsis is a life-threatening syndrome caused by abnormal host immune responses against bacterial infection. Although innate immune cells are known to be important in the pathogenesis of sepsis, how their activation is regulated during sepsis remains incompletely understood. Here, we examined the role of the inhibitory immunoreceptor CD300a, which is expressed on various types of myeloid cells, in the pathogenesis of sepsis induced by cecal ligation and puncture (CLP). To this end, we used mice in which CD300a was specifically deleted on mast cells (MCs; Cd300a (fl/fl) Mcpt5-Cre), dendritic cells (DCs; Cd300a (fl/fl) Itgax-Cre), or macrophages and neutrophils (Cd300a (fl/fl) Lyz2-Cre)...
November 11, 2016: International Immunology
https://www.readbyqxmd.com/read/27832135/intestinal-dendritic-cells-are-altered-in-number-maturity-and-chemotactic-ability-in-fulminant-hepatic-failure
#20
Mei Liu, Peng Wang, Min Zhao, D Y Liu
Fulminant hepatic failure (FHF) is defined as rapid acute liver injury, often complicated with spontaneous bacterial peritonitis (SBP). The precise onset of FHF with SBP is still unknown, but it is thought that SBP closely correlates with a weakened intestinal barrier. Dendritic cells (DCs) play a crucial role in forming the intestinal immune barrier, therefore the number, maturity and chemotactic ability of intestinal DCs were studied in FHF. Mouse intestinal and spleen DCs were isolated by magnetic-activated cell sorting (MACS) and surface markers of DCs, namely CD11c, CD74, CD83 and CD86, were identified using flow cytometry...
2016: PloS One
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