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https://www.readbyqxmd.com/read/28108153/parameters-from-the-complete-phonatory-range-of-an-excised-rabbit-larynx
#1
Randal D Mills, Keith Dodd, Alex Ablavsky, Erin Devine, Jack J Jiang
OBJECTIVE: This study aims to collect data throughout the complete phonatory range using rabbit larynges. STUDY DESIGN: This is a methodological excised rabbit larynx study. METHODS: Seven rabbit larynges were dissected and mounted on a modified excised laryngeal apparatus. Phonation was initiated at phonation threshold pressure (PTP) and airflow was increased by consistent increments until phonation instability pressure (PIP) was reached...
January 17, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28107070/tracheal-collapse-in-a-pekin-duck-anas-platyrhynchos-domestica
#2
Eugénie Henry-Guyot, Isabelle Langlois, Isabelle Lanthier, Dipl Acvp
A 5-year-old, 3.72-kg female Pekin duck ( Anas platyrhynchos domestica) was presented for acute respiratory distress, head shaking, and collapse. Similar spontaneously resolving episodes had previously occurred. Physical examination revealed severe inspiratory and expiratory dyspnea. Due to poor prognosis, euthanasia was elected. Postmortem examination revealed severe tracheal collapse involving the proximal trachea. The tracheal lumen was reduced in size by 75%. Histologic evaluation revealed ossification of the tracheal rings for approximately 60%-100% of their circumference...
December 2016: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28095507/choline-deficiency-causes-colonic-type-ii-natural-killer-t-nkt-cell-loss-and-alleviates-murine-colitis-under-type-i-nkt-cell-deficiency
#3
Shintaro Sagami, Yoshitaka Ueno, Shinji Tanaka, Akira Fujita, Hiroaki Niitsu, Ryohei Hayashi, Hideyuki Hyogo, Takao Hinoi, Yasuhiko Kitadai, Kazuaki Chayama
Serum levels of choline and its derivatives are lower in patients with inflammatory bowel disease (IBD) than in healthy individuals. However, the effect of choline deficiency on the severity of colitis has not been investigated. In the present study, we investigated the role of choline deficiency in dextran sulfate sodium (DSS)-induced colitis in mice. Methionine-choline-deficient (MCD) diet lowered the levels of type II natural killer T (NKT) cells in the colonic lamina propria, peritoneal cavity, and mesenteric lymph nodes, and increased the levels of type II NKT cells in the livers of wild-type B6 mice compared with that in mice fed a control (CTR) diet...
2017: PloS One
https://www.readbyqxmd.com/read/28080210/pathogen-control-at-the-intestinal-mucosa-h2o2-to-the-rescue
#4
Ulla G Knaus, Rosanne Hertzberger, Gratiela G Pircalabioru, S Parsa M Yousefi, Filipe Branco Dos Santos
Intestinal infections are a global challenge, connected to malnutrition and inadequate hygiene in developing countries, and to expanding antibiotic resistance in developed countries. In general, a healthy host is capable of fighting off gut pathogens or at least to recover from infections quickly. The underlying protective mechanism, termed colonization resistance, is provided by indigenous commensal communities (microbiota) that are shaped and aided by the host's epithelial and innate immune system. (1) Commensal-pathogen interactions are governed by competition for a suitable niche for replication and stable colonization, nutrient availability, species-specific alterations of the metabolic environment, changes in oxygen tension and release of chemicals and proteinaceous toxins (bacteriocins)...
January 12, 2017: Gut Microbes
https://www.readbyqxmd.com/read/28063049/isolation-and-flow-cytometry-analysis-of-innate-lymphoid-cells-from-the-intestinal-lamina-propria
#5
Konrad Gronke, Michael Kofoed-Nielsen, Andreas Diefenbach
The intestinal mucosa constitutes the biggest surface area of the body. It is constantly challenged by bacteria, commensal and pathogenic, protozoa, and food-derived irritants. In order to maintain homeostasis, a complex network of signaling circuits has evolved that includes contributions of immune cells. In recent years a subset of lymphocytes, which belong to the innate immune system, has caught particular attention. These so-called innate lymphoid cells (ILC) reside within the lamina propria of the small and large intestines and rapidly respond to environmental challenges...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28062278/%C3%AE-lipoic-acid-ameliorates-oral-mucositis-and-oxidative-stress-induced-by-methotrexate-in-rats-histological-and-immunohistochemical-study
#6
Amal A M Ahmed, Manar A A Selim, Norhan M El-Sayed
AIM: Oral mucositis is a common adverse effect of Methotrexate (MTX) that may limit its clinical use. Oxidative stress and apoptosis have been proposed to mediate MTX toxicity. The current study was conducted to assess the conceivable protective effect of α-lipoic acid (LA) against MTX induced toxicity on both buccal and lingual mucosae. MAIN METHODS: Thirty male Wistar rats were allocatedinto three groups; control, MTX-treated group subjected to single intraperitoneal injection of MTX (20mg/kg, i...
January 3, 2017: Life Sciences
https://www.readbyqxmd.com/read/28058223/acute-antibody-mediated-rejection-after-intestinal-transplantation
#7
Guo-Sheng Wu, Ruy J Cruz, Jun-Chao Cai
AIM: To investigate the incidence, risk factors and clinical outcomes of acute antibody-mediated rejection (ABMR) after intestinal transplantation (ITx). METHODS: A retrospective single-center analysis was performed to identify cases of acute ABMR after ITx, based on the presence of donor-specific antibody (DSA), acute tissue damage, C4d deposition, and allograft dysfunction. RESULTS: Acute ABMR was identified in 18 (10.3%) out of 175 intestinal allografts with an average occurrence of 10 d (range, 4-162) after ITx...
December 24, 2016: World Journal of Transplantation
https://www.readbyqxmd.com/read/28056456/bladder-metastases-from-lung-cancer-clinical-and-pathological-implications-a-systematic-review
#8
Francesca Sanguedolce, Domenico Loizzi, Francesco Sollitto, Maurizio Di Bisceglie, Giuseppe Lucarelli, Giuseppe Carrieri, Pantaleo Bufo, Luigi Cormio
Lung cancer is the tumor with the highest incidence in males worldwide and the most common cause of death from cancer overall; its high mortality is mostly due to its propensity to spread to other organs through lymphatic and blood vessels in spite of proper treatment. Bladder metastases from lung cancer are rare, with only 11 cases having been reported, all in recent years. This review aims to discuss some critical points regarding this uncommon condition, namely: (a) lung and bladder tumors share similar etiologic features; (b) almost all bladder metastases from lung cancer arise from lung adenocarcinomas; (c) cytology and superficial bladder biopsy may be falsely negative, since the neoplastic cells coming through the hematogenous route are typically located in the lamina propria and/or muscularis propria of the bladder wall; and (d) the differential diagnosis with primary bladder adenocarcinoma as well as primary and secondary small-cell carcinomas may be challenging...
January 6, 2017: Oncology
https://www.readbyqxmd.com/read/28052872/fgfr2-is-integral-for-bladder-mesenchyme-patterning-and-function
#9
Youko Ikeda, Irina Zabbarova, Caitlin M Schaefer, Daniel S Bushnell, William C de Groat, Anthony J Kanai, Carlton M Bates
BACKGROUND: While urothelial signals, including sonic hedgehog (Shh), drive bladder mesenchyme differentiation, it is unclear which pathways within the mesenchyme are critical for its development. Studies have shown fibroblast growth factor receptor 2 (Fgfr2) is necessary for kidney and ureter mesenchymal development. OBJECTIVE: Out objective was to determine the role of Fgfr2 in bladder mesenchyme. METHODS: We used Tbx18cre mice to delete Fgfr2 in bladder mesenchyme (Fgfr2BM-/-)...
January 4, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28034757/vancomycin-pre-treatment-impairs-tissue-healing-in-experimental-colitis-importance-of-innate-lymphoid-cells
#10
Di Zhao, Chenwen Cai, Qing Zheng, Shuang Jin, Dongjuan Song, Jun Shen, Zhihua Ran
BACKGROUND AND AIMS: The interplay between luminal microbes and innate immunity during colonic epithelial repair has been well noted. At the same time, antibiotic has widely been used during flare-ups of ulcerative colitis. The possible effects of luminal microbiota disruption caused by antibiotics usage on epithelial repairing have been scarcely discussed. Innate lymphoid cells (ILCs) embedded in the lamina propria can be modulated by gut microbes, resulting in altered colonic IL-22/pSTAT3 levels, which is considered a prominent molecular axis in tissue repairing after epithelium damage...
January 29, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28033148/transurethral-en-bloc-resection-of-nonmuscle-invasive-bladder-cancer-trend-or-hype
#11
Thomas R W Herrmann, Mathias Wolters, Mario W Kramer
PURPOSE OF REVIEW: Inherent limitations of conventional transurethral resection of bladder tumors as the standard approach for diagnosis and treatment of bladder cancer are well know: staging error because of insufficient assessment of resection depth as well as intravesical tumor fragmentation that complicates histopathological evaluation. The purpose of this review is to present recent clinical data on en bloc resection of bladder tumor (ERBT) that has been demonstrated to offer high potential to overcome these limitations...
December 28, 2016: Current Opinion in Urology
https://www.readbyqxmd.com/read/28030857/new-description-of-telocyte-sheaths-in-the-bovine-uterine-tube-an-immunohistochemical-and-scanning-microscopic-study
#12
Hanan H Abd-Elhafeez, Soha A Soliman
Telocytes are a special type of interstitial cells characterized by distinctive cellular extensions with alternating thin segments (podomers) and dilations (podoms). Telocytes establish contact with various cells and structures, but their role in the regulation of the function of many cell types is still obscure. The aim of the current study was to investigate the morphology, histochemistry, and immunohistochemistry of telocytes, and their distribution, organization, and morphometric measurements in different layers of the adult bovine uterine tube...
December 29, 2016: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28029282/assessment-of-eosinophil-peroxidase-as-a-potential-diagnostic-and-prognostic-marker-in-dogs-with-inflammatory-bowel-disease
#13
Idil Bastan, Nicholas A Robinson, Xiao Na Ge, Aaron K Rendahl, Savita P Rao, Robert J Washabau, P Sriramarao
OBJECTIVE To evaluate a method for identifying intact and degranulated eosinophils in the small intestine of dogs with inflammatory bowel disease (IBD) by use of a monoclonal antibody (mAb) against eosinophil peroxidase (EPX). ANIMALS 11 untreated dogs with IBD, 5 dogs with IBD treated with prednisolone, and 8 control dogs with no clinical evidence of gastrointestinal tract disease and no immunosuppressive treatment. PROCEDURES 4-μm-thick sections of paraffin-embedded tissues from necropsy specimens were immunostained with EPX mAb...
January 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28028137/diversification-of-cell-lineages-in-ureter-development
#14
Tobias Bohnenpoll, Sarah Feraric, Marvin Nattkemper, Anna-Carina Weiss, Carsten Rudat, Max Meuser, Mark-Oliver Trowe, Andreas Kispert
The mammalian ureter consists of a mesenchymal wall composed of smooth muscle cells and surrounding fibrocytes of the tunica adventitia and the lamina propria and an inner epithelial lining composed of layers of basal, intermediate, and superficial cells. How these cell types arise from multipotent progenitors is poorly understood. Here, we performed marker analysis, cell proliferation assays, and genetic lineage tracing to define the lineage relations and restrictions of the mesenchymal and epithelial cell types in the developing and mature mouse ureter...
December 27, 2016: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28011265/involvement-of-ly6c-4-1bb-and-klrg1-in-the-activation-of-lamina-propria-lymphocytes-in-the-small-intestine-of-sanroque-mice
#15
Dina Montufar-Solis, Alexander Williams, Nadarajah Vigneswaran, John R Klein
Roquin is an E3 ligase that regulates mRNA stability. Mice with a mutation in the Rc3h1 gene and Roquin protein, referred to as Roquin(san/san) or sanroque mice, develop broad-spectrum chronic inflammatory conditions and autoimmune pathologies. Our laboratory recently reported that sanroque mice also develop extensive inflammation that is localized in the small intestine but is rare in the colon. Here, we demonstrate that small intestinal intraepithelial lymphocytes (IELs) are present in the epithelium of sanroque mice but that cell recoverability is low using standard extraction techniques even though lamina propria lymphocytes (LPLs) can be recovered in normal numbers...
January 29, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28002063/low-abundance-of-colonic-butyrate-producing-bacteria-in-hiv-infection-is-associated-with-microbial-translocation-and-immune-activation
#16
Stephanie M Dillon, Jon Kibbie, Eric J Lee, Kejun Guo, Mario L Santiago, Gregory L Austin, Sara Gianella, Alan L Landay, Andrew M Donovan, Daniel N Frank, Martin D McCarter, Cara C Wilson
OBJECTIVE: Gut microbial translocation (MT) is a major driving force behind chronic immune activation during HIV-1 infection. HIV-1-related intestinal dysbiosis, including increases in mucosa-associated pathobionts, may influence MT and contribute to mucosal and systemic inflammation. Thus, it is critical to understand the mechanisms by which gut microbes and their metabolic products, such as butyrate, influence immune cell function during HIV-1 infection. DESIGN: A cross-sectional study was performed to compare the relative abundance of butyrate-producing bacterial species (BPB) in colonic biopsies and stool of untreated, chronic HIV-1 infected (n = 18) and uninfected (n = 14) study participants...
December 19, 2016: AIDS
https://www.readbyqxmd.com/read/28000302/pd-1-inhibitor-gastroenterocolitis-case-series-and-appraisal-of-immunomodulatory-gastroenterocolitis
#17
Raul S Gonzalez, Safia N Salaria, Caitlin D Bohannon, Aaron R Huber, Michael M Feely, Chanjuan Shi
AIMS: PD-1 inhibitors facilitate immune response against certain tumour types, including melanoma. These drugs have led to prolonged survival but can also result in autoimmune-type side effects, including gastrointestinal inflammation. The histopathological effects of this medication class have not been well studied. METHODS AND RESULTS: We identified 37 gastrointestinal tract biopsies from 20 patients taking a PD-1 or PD-L1 inhibitor and evaluated clinicopathological findings...
November 7, 2016: Histopathology
https://www.readbyqxmd.com/read/27999668/development-of-a-vivo-rabbit-ligated-intestinal-loop-model-for-hcmv-infection
#18
Jin Tang, Qiaoxing Wu, Xinming Tang, Ruihan Shi, Jingxia Suo, Guangping Huang, Junqing An, Jingyuan Wang, Jinling Yang, Wenzhuo Hao, Ruiping She, Xun Suo
BACKGROUND: Human Cytomegalovirus (HCMV) infections can be found throughout the body, especially in epithelial tissue. Animal model was established by inoculation of HCMV (strain AD-169) or coinoculation with Hepatitis E virus (HEV) into the ligated sacculus rotundus and vermiform appendix in living rabbits. The specimens were collected from animals sacrificed 1 and a half hours after infection. RESULTS: The virus was found to be capable of reproducing in these specimens through RT-PCR and Western-blot...
2016: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/27994658/high-expression-of-17%C3%AE-hydroxysteroid-dehydrogenase-type-2-is-associated-with-a-better-prognosis-in-urothelial-carcinoma-of-the-urinary-tract
#19
Chieh-Tien Wang, Chien-Feng Li, Wen-Jeng Wu, Chun-Nung Huang, Ching-Chia Li, Wei-Ming Li, Ti-Chun Chan, Peir-In Liang, Chung-Hsi Hsing, Kuang-Ming Liao
Object: To identify associations between 17β-hydroxysteroid dehydrogenase type 2 (HSD17B2) expression and clinicopathological variables and prognoses in patients with urothelial carcinoma of the urinary tract. Materials and Methods: We analyzed one public transcriptome dataset (GSE31684) from the Gene Expression Omnibus. HSD17B2 showed the highest log2-transformed fold-change in expression, and it was therefore further analyzed. We enrolled 340 upper urinary tract and 295 urinary bladder tissue samples that were obtained from patients with urothelial carcinoma between 1996 and 2004 to evaluate the expression of HSD17B2 using immunohistochemistry...
2016: Journal of Cancer
https://www.readbyqxmd.com/read/27993173/the-immunological-characteristics-and-probiotic-function-of-recombinant-bacillus-subtilis-spore-expressing-clonorchis-sinensis-cysteine-protease
#20
Zeli Tang, Mei Shang, Tingjin Chen, Pengli Ren, Hengchang Sun, Hongling Qu, Zhipeng Lin, Lina Zhou, Jinyun Yu, Hongye Jiang, Xinyi Zhou, Xuerong Li, Yan Huang, Jin Xu, Xinbing Yu
BACKGROUND: Clonorchiasis, a food-borne zoonosis, is caused by Clonorchis sinensis. The intestinal tract and bile ducts are crucial places for C. sinensis metacercariae to develop into adult worms. The endospore of Bacillus subtilis is an ideal oral immunization vehicle for delivery of heterologous antigens to intestine. Cysteine protease of C. sinensis (CsCP) is an endogenous key component in the excystment of metacercariae and other physiological or pathological processes. METHODS: We constructed a fusion gene of CotC (a coat protein)-CsCP and obtained B...
December 19, 2016: Parasites & Vectors
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