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https://www.readbyqxmd.com/read/27922979/a-comparison-of-thermal-plasma-energy-versus-argon-beam-coagulator-induced-intestinal-injury-after-vaporization-in-a-porcine-model
#1
Edward J Tanner, Erica Dun, Yukio Sonoda, Alexander B Olawaiye, Dennis S Chi
OBJECTIVES: Complete cytoreduction of ovarian cancer often requires excision or ablation of bowel serosa implants. Both argon beam coagulator (ABC) and thermal plasma energy (TPE) (PlasmaJet; PlasmaSurgical, Roswell, Ga) have been used to ablate bowel serosa implants. Our objective was to identify comparable power settings as well as determine the rate of bowel perforation, depth of thermal injury, and extent of inflammatory response with ABC versus TPE in a porcine model. MATERIALS AND METHODS: Nine pigs underwent vaporization of small bowel and colon serosa according to assigned treatment group (TPE vs ABC) and settings (ABC: 30, 50, and 70 W; TPE: Cut 10U, 20U, and 30U and Coagulation 10U, 20U, and 30U)...
December 3, 2016: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/27922858/hiv-hpv-and-microbiota-partners-in-crime
#2
Sergio Serrano-Villar, Emilia Vásquez-Domínguez, José Antonio Pérez-Molina, Talía Sainz, Amparo de Benito, Amparo Latorre, Andrés Moya, María José Gosalbes, Santiago Moreno
Altered interplay between gut mucosa and dysbiotic bacteria during HIV infection seems to fuel chronic immune dysfunction and might explain the excess rates of HPV-associated anal cancer in HIV-infected individuals. Here, we show in HIV-infected MSM undergoing screening for HPV-related cancer that specific fecal and mucosal bacteria are able to predict the existence of precancerous anal lesions. If confirmed, these bacterial biomarkers could be exploited either as diagnostic tools or therapeutic targets.
December 5, 2016: AIDS
https://www.readbyqxmd.com/read/27922852/hiv-associated-changes-in-the-enteric-microbial-community-potential-role-in-loss-of-homeostasis-and-development-of-systemic-inflammation
#3
David B Gootenberg, Jeffrey M Paer, Jesus-Mario Luevano, Douglas S Kwon
PURPOSE OF REVIEW: Despite HIV therapy advances, average life expectancy in HIV-infected individuals on effective treatment is significantly decreased relative to uninfected persons, largely because of increased incidence of inflammation-related diseases, such as cardiovascular disease and renal dysfunction. The enteric microbial community could potentially cause this inflammation, as HIV-driven destruction of gastrointestinal CD4 T cells may disturb the microbiota-mucosal immune system balance, disrupting the stable gut microbiome and leading to further deleterious host outcomes...
December 2, 2016: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/27922753/loss-of-immune-control-in-hiv-infected-patients-how-does-mucosal-candidiasis-occur
#4
Sarah Auclair, Fengliang Liu, Haitao Hu
No abstract text is available yet for this article.
December 6, 2016: Future Microbiology
https://www.readbyqxmd.com/read/27922699/adhesion-and-invasion-of-streptococcus-pneumoniae-to-primary-and-secondary-respiratory-epithelial-cells
#5
Sara Novick, Marilous Shagan, Karin Blau, Sarit Lifshitz, Noga Givon-Lavi, Nili Grossman, Lipa Bodner, Ron Dagan, Yaffa Mizrachi Nebenzahl
The interaction between Streptococcus pneumoniae (S. pneumoniae) and the mucosal epithelial cells of its host is a prerequisite for pneumococcal disease development, yet the specificity of this interaction between different respiratory cells is not fully understood. In the present study, three areas were examined: i) The capability of the encapsulated S. pneumoniae serotype 3 strain (WU2) to adhere to and invade primary nasal‑derived epithelial cells in comparison to primary oral‑derived epithelial cells, A549 adenocarcinoma cells and BEAS‑2B viral transformed bronchial cells; ii) the capability of the unencapsulated 3...
December 6, 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27922236/microorganisms-isolated-from-cultures-and-infection-focus-and-antibiotic-treatments-in-febrile-neutropenic-children-from-%C3%A5-anl%C3%A4-urfa-turkey
#6
Z Canan Özdemir, Ahmet Koç, Ali Ayçiçek
Chemotherapy induced febrile neutropenia predisposes patients to life threatening infections. We aimed to determine the causative microorganisms, infection focus and antibiotic treatment success in febrile neutropenic children with leukemia. A total of 136 febrile neutropenic episodes in 48 leukemic children were reviewed retrospectively from records. Among 136 febrile neutropenic episodes, 68 (50%) episodes were microbiologically documented. Methicillin sensitive coagulase (-) Staphylococcus aureus were the most common isolates from hemoculture (20...
2016: Turkish Journal of Pediatrics
https://www.readbyqxmd.com/read/27921309/hypoxia-inducible-factor-1%C3%AE-induced-interleukin-33-expression-in-intestinal-epithelia-contributes-to-mucosal-homeostasis-in-inflammatory-bowel-disease
#7
M Sun, C He, W Wu, G Zhou, F Liu, Y Cong, Z Liu
Intestinal epithelial cells (IECs), an important barrier to gut microbiota, are subject to low oxygen tension, particularly during intestinal inflammation. Hypoxia inducible factor-1α (HIF-1α) is expressed highly in the inflamed mucosa of inflammatory bowel disease (IBD) and functions as a key regulator in maintenance of intestinal homeostasis. However, how IEC-derived HIF-1α regulates intestinal immune responses in IBD is still not understood completely. We report here that the expression of HIF-1α and IL-33 was increased significantly in the inflamed mucosa of IBD patients as well as mice with colitis induced by dextran sulphate sodium (DSS)...
November 7, 2016: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/27921277/surgery-for-acute-exacerbation-of-chronic-mesenteric-ischemia-a-case-report
#8
Shinji Abe, Tomoji Yamakawa, Hideaki Kawashima, Makoto Yoshida, Setsuji Takanashi, Motoya Kashiyama, Masahiro Ishigooka, Yasushige Shingu, Yoshiro Matsui
BACKGROUND: Chronic mesenteric ischemia (CMI) is a rare disease; however, symptomatic CMI has a risk of acute exacerbation without timely revascularization. CASE PRESENTATION: A 54-year-old man who had had postprandial pain for 6 months was admitted to our hospital because of vomiting and diarrhea. Although the celiac and superior mesenteric arteries were occluded at the proximal portion, contrast enhancement of the bowel wall was good in contrast-enhanced computed tomography (CECT)...
December 2016: Surgical Case Reports
https://www.readbyqxmd.com/read/27921008/age-related-differences-in-the-luminal-and-mucosa-associated-gut-microbiome-of-broiler-chickens-and-shifts-associated-with-campylobacter-jejuni-infection
#9
Wageha A Awad, Evelyne Mann, Monika Dzieciol, Claudia Hess, Stephan Schmitz-Esser, Martin Wagner, Michael Hess
Despite the importance of gut microbiota for broiler performance and health little is known about the composition of this ecosystem, its development and response towards bacterial infections. Therefore, the current study was conducted to address the composition and structure of the microbial community in broiler chickens in a longitudinal study from day 1 to day 28 of age in the gut content and on the mucosa. Additionally, the consequences of a Campylobacter (C.) jejuni infection on the microbial community were assessed...
2016: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/27920756/salmonella-typhimurium-and-multidirectional-communication-in-the-gut
#10
REVIEW
Elena V Gart, Jan S Suchodolski, Thomas H Welsh, Robert C Alaniz, Ronald D Randel, Sara D Lawhon
The mammalian digestive tract is home to trillions of microbes, including bacteria, archaea, protozoa, fungi, and viruses. In monogastric mammals the stomach and small intestine harbor diverse bacterial populations but are typically less populated than the colon. The gut bacterial community (microbiota hereafter) varies widely among different host species and individuals within a species. It is influenced by season of the year, age of the host, stress and disease. Ideally, the host and microbiota benefit each other...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27920680/mucocutaneous-ulcerations-and-pancytopenia-due-to-methotrexate-overdose
#11
Katharina Knoll, Florian Anzengruber, Antonio Cozzio, Lars E French, Carla Murer, Alexander A Navarini
Methotrexate (MTX) is an antifolic drug used in the treatment of immune-mediated and neoplastic diseases. Initiation or dosage changes in MTX therapy can cause mucositis and bone marrow suppression. Skin lesions due to acute MTX toxicity are rare, but they serve as a herald for later-onset pancytopenia. Therefore, identification of those cutaneous lesions might help to initiate rescue strategies at an early stage. Here we describe a case with mucocutaneous ulcerations and pancytopenia due to overdosed MTX.
September 2016: Case Reports in Dermatology
https://www.readbyqxmd.com/read/27920639/a-giant-gastrointestinal-stromal-tumor-of-the-stomach-with-extramural-growth
#12
Ryosuke Miyazaki, Seiji Arihiro, Eri Hayashi, Takuya Kitahara, Sayumi Oki, Syunsuke Kamba, Daisuke Ide, Nobuhiko Komoike, Kenichi Satoh, Tomohiro Kato, Masayuki Saruta, Hisao Tajiri, Hiroaki Aoki, Nobuo Omura, Norio Mitsumori, Takehiro Mitsuishi, Haruka Yanagisawa, Hiroyuki Takahashi
A 76-year-old man presented to our hospital with abdominal distention and loss of appetite. The 10% of weight lost relative to this patient in 1 month. Abdominal computed tomography and magnetic resonance imaging revealed a giant mass, with a major axis of 23 cm, containing solid components, not involving the upper abdominal organs. Esophagogastroduodenoscopy showed extramural compression from the middle gastric body to the antrum, as well as a normal mucosal surface. These findings were suggestive of a gastrointestinal stromal tumor attached to the anterior wall of the stomach without metastasis or invasion...
May 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27920485/use-of-the-endocuff-during-routine-colonoscopy-examination-improves-adenoma-detection-a-meta-analysis
#13
Matthew Chin, William Karnes, M Mazen Jamal, John G Lee, Robert Lee, Jason Samarasena, Matthew L Bechtold, Douglas L Nguyen
AIM: To perform meta-analysis of the use of Endocuff during average risk screening colonoscopy. METHODS: Scopus, Cochrane databases, MEDLINE/PubMed, and CINAHL were searched in April 2016. Abstracts from Digestive Disease Week, United European Gastroenterology, and the American College of Gastroenterology meeting were also searched from 2004-2015. Studies comparing EC-assisted colonoscopy (EAC) to standard colonoscopy, for any indication, were included in the analysis...
November 21, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27920199/the-active-bacterial-assemblages-of-the-upper-gi-tract-in-individuals-with-and-without-helicobacter-infection
#14
Christian Schulz, Kerstin Schütte, Nadine Koch, Ramiro Vilchez-Vargas, Melissa L Wos-Oxley, Andrew P A Oxley, Marius Vital, Peter Malfertheiner, Dietmar H Pieper
OBJECTIVE: Patients infected with Helicobacter pylori develop chronic gastritis with a subgroup progressing to further complications. The role of microbiota from the oral cavity swallowed with saliva and either transiting the stomach or persisting in the gastric mucosa is uncertain. It is also not known whether the bacterial community differs in luminal and mucosal niches. A key question is whether H. pylori influences the bacterial communities of gastroduodenal niches. DESIGN: Saliva, gastric and duodenal aspirates as well as gastric and duodenal biopsies were collected during oesophagogastroduodenoscopy from 24 patients (m:9, f:15, mean age 52...
December 5, 2016: Gut
https://www.readbyqxmd.com/read/27919988/up-regulation-of-cytoplasmic-cd24-expression-is-associated-with-malignant-transformation-but-favorable-prognosis-of-colorectal-adenocarcinoma
#15
Min-Kyung Yeo, Yong-Moon Lee, In-Ock Seong, Song-Yi Choi, Kwang-Sun Suh, Kyu Sang Song, Choong-Sik Lee, Jin Man Kim, Kyung-Hee Kim
AIM: Cluster of differentiation 24 (CD24) is known to be a putative marker of stem cell and tumor metastasis. This study aimed to verify the clinicopathological value of CD24 expression in colorectal adenocarcinoma (CRAC). MATERIALS AND METHODS: A total of seven whole-tissue sections of malignant polyps including the sequence non-neoplastic colorectal tissue-adenoma-CRAC, 48 adenomas and 161 CRACs arranged as tissue microarray were examined by immunohistochemistry for CD24 protein expression...
December 2016: Anticancer Research
https://www.readbyqxmd.com/read/27919754/neutralization-takes-precedence-over-igg-or-iga-isotype-related-functions-in-mucosal-hiv-1-antibody-mediated-protection
#16
Rena D Astronomo, Sampa Santra, Lamar Ballweber-Fleming, Katharine G Westerberg, Linh Mach, Tiffany Hensley-McBain, Laura Sutherland, Benjamin Mildenberg, Georgeanna Morton, Nicole L Yates, Gregory J Mize, Justin Pollara, Florian Hladik, Christina Ochsenbauer, Thomas N Denny, Ranjit Warrier, Supachai Rerks-Ngarm, Punnee Pitisuttithum, Sorachai Nitayapan, Jaranit Kaewkungwal, Guido Ferrari, George M Shaw, Shi-Mao Xia, Hua-Xin Liao, David C Montefiori, Georgia D Tomaras, Barton F Haynes, M Juliana McElrath
HIV-1 infection occurs primarily through mucosal transmission. Application of biologically relevant mucosal models can advance understanding of the functional properties of antibodies that mediate HIV protection, thereby guiding antibody-based vaccine development. Here, we employed a human ex vivo vaginal HIV-1 infection model and a rhesus macaque in vivo intrarectal SHIV challenge model to probe the protective capacity of monoclonal broadly-neutralizing (bnAb) and non-neutralizing Abs (nnAbs) that were functionally modified by isotype switching...
November 21, 2016: EBioMedicine
https://www.readbyqxmd.com/read/27919595/the-starting-point-for-bisphosphonate-related-osteonecrosis-of-the-jaw-alveolar-bone-or-oral-mucosa-a-randomized-controlled-experimental-study
#17
Mohammad Zandi, Arash Dehghan, Pejman Janbaz, Hamid Malekzadeh, Payam Amini
OBJECTIVE: Although over a decade has passed since first introduction of BRONJ, the exact pathophysiology of this disease is still unclear. The present experimental study aimed to determine whether the oral mucosa or alveolar bone serves as the starting point for BRONJ development. SUBJECTS AND METHODS: Sixty male Wistar rats were randomly assigned into study and control groups (each, n = 30), and received intraperitoneal injection of 0.06 mg/kg zoledronate and saline, respectively, once a week for 12 weeks...
November 2, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27919336/tissue-reactions-to-ionizing-radiation-oral-mucosa
#18
Sylvia Gruber, Wolfgang Dörr
Radiotherapy is one of the most effective treatment strategies for solid malignancies, including head-and-neck tumors (HNT). Oral mucositis is the most frequent, often dose-limiting early adverse event of radio(chemo)therapy for HNT. The oral mucosal response is - like that of typical turnover tissues - based on radiation-induced impairment of epithelial proliferation and cell production, in face of ongoing physiological cell differentiation and cell loss, consequently resulting in hypoplasia and eventually mucosal ulceration...
October 2016: Mutation Research
https://www.readbyqxmd.com/read/27919212/investigating-drug-repositioning-approach-to-design-novel-prodrugs-for-colon-specific-release-of-fexofenadine-for-ulcerative-colitis
#19
Suneela S Dhaneshwar, Priyanka Singh
BACKGROUND: Recent immunologic data implicates involvement of mucosal immune cells of the intestine like eosinophils and mast cells to be functionally involved in the pathogenesis of UC. Mast cell activation is followed by increased secretion and elevated tissue concentration of histamine. Inhibition of mucosal histamine release in colon may be an effective therapeutic approach to treat UC. Some studies report that intestinal inflammation associated with acute and chronic colitis has been ameliorated by fexofenadine in mice...
December 5, 2016: Current Drug Delivery
https://www.readbyqxmd.com/read/27919079/receptor-usage-dictates-hiv-1-restriction-by-human-trim5%C3%AE-in-dendritic-cell-subsets
#20
Carla M S Ribeiro, Ramin Sarrami-Forooshani, Laurentia C Setiawan, Esther M Zijlstra-Willems, John L van Hamme, Wikky Tigchelaar, Nicole N van der Wel, Neeltje A Kootstra, Sonja I Gringhuis, Teunis B H Geijtenbeek
The most prevalent route of HIV-1 infection is across mucosal tissues after sexual contact. Langerhans cells (LCs) belong to the subset of dendritic cells (DCs) that line the mucosal epithelia of vagina and foreskin and have the ability to sense and induce immunity to invading pathogens. Anatomical and functional characteristics make LCs one of the primary targets of HIV-1 infection. Notably, LCs form a protective barrier against HIV-1 infection and transmission. LCs restrict HIV-1 infection through the capture of HIV-1 by the C-type lectin receptor Langerin and subsequent internalization into Birbeck granules...
December 7, 2016: Nature
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