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https://www.readbyqxmd.com/read/28508868/influence-of-age-and-eosinophilic-esophagitis-on-esophageal-distensibility-in-a-pediatric-cohort
#1
Calies Menard-Katcher, Alain J Benitez, Zhaoxing Pan, Faria N Ahmed, Benjamin J Wilkins, Kelley E Capocelli, Chris A Liacouras, Ritu Verma, Jonathan M Spergel, Glenn T Furuta, Amanda B Muir
OBJECTIVES: Sequelae of eosinophilic esophagitis (EoE) include food impaction and esophageal stricture. Duration of inflammation is a predicted risk factor; however, complications remain unpredictable. Studies using the functional lumen imaging probe (FLIP) have demonstrated decreased distensibility of the esophagus in adult patients with EoE. As the impact of inflammation on the developing esophagus is unknown, we investigated esophageal distensibility in a pediatric cohort to determine the effect of age, ongoing inflammation, and fibrotic features on distensibility...
May 16, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28504205/comparison-of-clinicopathologic-characteristics-of-gastric-follicular-lymphomas-and-duodenal-follicular-lymphomas
#2
Akiko Miyagi Maeshima, Hirokazu Taniguchi, Tomotaka Suzuki, Sayako Yuda, Kosuke Toyoda, Nobuhiko Yamauchi, Shinichi Makita, Suguru Fukuhara, Wataru Munakata, Dai Maruyama, Yukio Kobayashi, Yutaka Saito, Kensei Tobinai
We compared the incidence, esophagogastroduodenoscopy (EGD) findings, and histopathologic characteristics of gastric and duodenal follicular lymphomas (FL). Of 626 FL cases, primary gastric FL and secondary gastric involvement of FL were observed in 1% and 5% of the cases, respectively, which were lower incidences than duodenal FL (10% and 9%, respectively). Gastric FL usually appeared as submucosal tumors (primary, 71%: secondary, 79%), whereas duodenal FL as granular lesions (primary, 92%: secondary, 87%)...
May 10, 2017: Human Pathology
https://www.readbyqxmd.com/read/28501138/submucosal-neurons-and-enteric-glial-cells-expressing-the-p2x7-receptor-in-rat-experimental-colitis
#3
Marcos Vinícius da Silva, Aline Rosa Marosti, Cristina Eusébio Mendes, Kelly Palombit, Patricia Castelucci
The aim of this study was to evaluate the effect of ulcerative colitis on the submucosal neurons and glial cells of the submucosal ganglia of rats. 2,4,6-Trinitrobenzene sulfonic acid (TNBS; colitis group) was administered in the colon to induce ulcerative colitis, and distal colons were collected after 24h. The colitis rats were compared with those in the sham and control groups. Double labelling of the P2X7 receptor with calbindin (marker for intrinsic primary afferent neurons, IPANs, submucosal plexus), calretinin (marker for secretory and vasodilator neurons of the submucosal plexus), HuC/D and S100β was performed in the submucosal plexus...
May 10, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28498077/the-effect-of-platelet-rich-fibrin-membrane-on-the-repair-of-perforated-tympanic-membrane-an-experimental-study
#4
Nuray Ensari, Özer Erdem Gür, Mehmet Türker Öztürk, Dinç Süren, Ömer Tarık Selçuk, Üstün Osma
CONCLUSION: Platelet-rich fibrin (PRF) membrane could be used successfully in the repair of tympanic membrane perforation and wound healing. OBJECTIVES: To evaluate the effect of platelet-rich fibrin membrane in the repair of perforated tympanic membrane. METHODS: After otoscopic examination, a 3-mm perforation was made in the posterior quadrant of both tympanic membranes of 50 adult male Sprague-Dawley rats. Venous blood was withdrawn from the rats, then centrifuged...
February 22, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28495789/dietary-nondigestible-oligosaccharides-and-bifidobacterium-breve-m-16v-suppress-allergic-inflammation-in-intestine-via-targeting-dendritic-cell-maturation
#5
Sander de Kivit, Atanaska I Kostadinova, JoAnn Kerperien, Mary E Morgan, Veronica Ayechu Muruzabal, Gerard A Hofman, Leon M J Knippels, Aletta D Kraneveld, Johan Garssen, Linette E M Willemsen
Dietary intervention with short-chain galacto-oligosaccharides (scGOS), long-chain fructo-oligosaccharides (lcFOS) and Bifidobacterium breve M-16V (Bb) (GF/Bb) suppresses food allergic symptoms in mice, potentially via intestinal epithelial cell (IEC)-derived galectin-9. Furthermore, in vitro studies showed galacto- and fructo-oligosaccharides (GF) to enhance the immunomodulatory capacity of a TLR9 ligand representing bacterial CpG DNA when exposed to IEC. In this study, we investigated whether GF/Bb modulates dendritic cells (DCs) and subsequent Th2 and regulatory T cell (Treg) frequency in the small intestinal lamina propria (SI-LP)...
May 11, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28486175/ileocaecal-and-transverse-colonic-tuberculosis-mimicking-colonic-malignancy-a-case-report
#6
Prashant Lakhe, Asma Khalife, Jayashri Pandya
INTRODUCTION: Gastrointestinal tuberculosis is common in the developing world especially in the lower socioeconomic groups. In elderly, it may mimic malignancy. CASE PRESENTATION: A 46-year-old female presented with a 6 month history of diffuse pain in abdomen with low grade fever and loss of weight and appetite. Clinically, differential of malignancy of the large bowel was considered. The computerized tomography(CT) scan of the abdomen revealed a diffuse concentric long segmental thickening of terminal ileum, ileo ceacal junction, ascending colon and narrowing of the transverse colonic end of the splenic flexure suggesting an infective etiology...
April 19, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28485292/assessment-and-management-of-retraction-pockets
#7
Alper Cuneyt, Ewa Olszewska
This manuscript intends to review types, pathogenesis, associated risk factors, and potential methods of prevention and treatment of the retraction pockets in adults and children. The importance of retraction pockets (RP) lies in loss of original histological and anatomical structure which is associated with development of ossicular chain erosion, cho¬lesteatoma formation and potentially life threatening complications of cholesteatoma. The trans-mucosal exchange each gas in the middle ear (ME) is towards equalizing its partial pressures with the partial pressure in the environ¬ment...
February 28, 2017: Otolaryngologia Polska
https://www.readbyqxmd.com/read/28480862/influence-of-ozone-therapy-on-oral-tissue-in-modeling-of-chronic-recurrent-aphthous-stomatitis
#8
I Kovach, L Kravchenko, Yu Khotimska, R Nazaryan, V Gargin
Chronic recurrent aphthous stomatitis (CRAS) belongs to the group of chronic, inflammatory, ulcerative diseases of the oral mucosa. The aim of this study was to determine the effects of ozone on the morphofunctional peculiarities of the soft tissues in modeling chronic recurrent aphthous stomatitis. We performed experimental investigation for study of the morpho-functional state of tissues of the oral mucosa in CRAS with using of previously proposed and widely used modeling scheme with ovalbumin and aluminum hydroxide...
March 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28477359/inhibitory-effect-of-the-urothelium-lamina-propria-on-female-porcine-urethral-contractility-effect-of-age
#9
Oladayo Seun Folasire, Russ Chess-Williams, Donna Jayne Sellers
The urethral uroepithelium has been implicated in urethral sensation and maintenance of continence. However, relatively little is known about the function of the urethral urothelium compared with that of the bladder. The aim of the study was to examine the role of the urothelium/lamina propria on contractility of the porcine urethra, along with the influence of nitric oxide, prostaglandins and ageing. Porcine urethral tissues, intact and denuded of urothelium/lamina propria, were mounted in tissue baths and contractions to noradrenaline, phenylephrine and carbachol obtained...
May 6, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28472424/ven-120-a-recombinant-human-lactoferrin-promotes-a-regulatory-t-cell-treg-phenotype-and-drives-resolution-of-inflammation-in-distinct-murine-models-of-inflammatory-bowel-disease
#10
Christopher F MacManus, Colm B Collins, Tom T Nguyen, Randall W Alfano, Paul Jedlicka, Edwin F de Zoeten
Background and Aims: Inflammatory bowel disease (IBD) is characterized by a disruption of immune homeostasis, which is tightly regulated to protect against harmful pathogens yet not react to commensal antigens. Animal studies indicate that regulatory T cells (Treg) modulate the immune response to prevent IBD development. Lactoferrin (LF), is an endogenous anti-inflammatory pleiotropic protein secreted at high concentrations in colostrum and at mucosal sites. However, the effect of LF on specific T lymphocyte populations has not been studied...
May 2, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28470753/stalk-versus-base-invasion-in-pt1-papillary-cancers-of-the-bladder-improved-substaging-system-predicting-risk-of-progression
#11
Margaret Lawless, Roman Gulati, Maria Tretiakova
AIMS: Pathologic stage T1 (pT1) bladder cancers are a clinically heterogeneous group. However, current staging guidelines for superficially invasive cancers do not acknowledge the variability in type and extent of lamina propria invasion in papillary urothelial carcinomas (PUC), and historically proposed substaging systems showed either high inter-observer variation or limited value in predicting patient outcomes. Herein we reappraise pT1 PUC substaging, aiming to identify a novel scheme which is reproducible and prognostically meaningful...
May 4, 2017: Histopathology
https://www.readbyqxmd.com/read/28465831/interaction-between-the-gut-microbiome-and-mucosal-immune-system
#12
REVIEW
Na Shi, Na Li, Xinwang Duan, Haitao Niu
The gut microbiota, the largest symbiotic ecosystem with the host, has been shown to play important roles in maintaining intestinal homeostasis. Dysbiosis of the gut microbiome is caused by the imbalance between the commensal and pathogenic microbiomes. The commensal microbiome regulates the maturation of the mucosal immune system, while the pathogenic microbiome causes immunity dysfunction, resulting in disease development. The gut mucosal immune system, which consists of lymph nodes, lamina propria and epithelial cells, constitutes a protective barrier for the integrity of the intestinal tract...
2017: Military Medical Research
https://www.readbyqxmd.com/read/28454251/laparoscopic-resection-of-a-sigmoid-colon-lipoma-in-a-young-female-patient-a-case-report-and-review-of-the-literature
#13
Georgios I Panagiotakis, Alexandros G Andreou, Ioannis E Petrakis, Maria Tzardi, Maria Daskalogiannaki, Georgios E Chalkiadakis
Lipomas of the sigmoid colon are rare entities. The present case describes a 27-year-old Caucasian woman who underwent a laparoscopic sigmoidectomy following the detection of a giant lipoma. The young patient was referred to the Emergency Department of the University Hospital of Heraklion (Crete, Greece) in May 2013 after experiencing intermittent abdominal cramping during defecation, and altering episodes of diarrhea and constipation. In addition, the patient described the protrusion of a solid tissue mass shaped like a 'champagne bottle cork' from the anus following defecation...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28453766/comparable-immune-function-inhibition-by-the-infliximab-biosimilar-ct-p13-implications-for-treatment-of-inflammatory-bowel-disease
#14
Ki Jung Lim, So Jung Lee, Sunghwan Kim, Su Yeon Lee, Min Seob Lee, Yoon A Park, Eun Jin Choi, Eun Beom Lee, Hwang Keun Jun, Jong Moon Cho, SooYoung Lee, Ki Sung Kwon, Byung Pil Lim, Myung-Shin Jeon, Eui Cheol Shin, Yong Sung Choi, Ella Fudim, Orit Picard, Miri Yavzori, Shomron Ben-Horin, Shin Jae Chang
Background and Aims: CT-P13 is the first biosimilar monoclonal antibody to infliximab, and was recently approved in the European Union, Japan, Korea, and USA for all six indications of infliximab. However, studies directly assessing the biologic activity of CT-P13 versus inflximab in the context of inflammatory bowel disease [IBD] are still scanty. In the present study, we aimed to compare the biological activities of CT-P13 and infliximab with specific focus on intestinal cells so as to gain insight into the potential biosimilarity of these two agents for treatment of IBD...
May 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28449552/effect-of-proparacaine-in-a-mouse-model-of-allergic-rhinitis
#15
Hwan Soo Kim, Sulmui Won, Eu Kyoung Lee, Yoon Hong Chun, Jong-Seo Yoon, Jin Tack Kim, Hyun Hee Kim
Objectives: Lidocaine, a local anaesthetic is a treatment option in uncontrolled asthma due to its immunomodulatory effects. In the present study, proparacaine (PPC), a derivative of lidocaine was examined for its therapeutic application in a mouse model of allergic rhinitis. Methods: The mice were grouped into 4 groups: control group, allergic rhinitis (AR) group, ciclesonide (CIC) group, and PPC group. Nasal symptom scores, eosinophil counts, goblet cell counts, and mast cells counts in the nasal mucosa were measured...
April 28, 2017: Clinical and Experimental Otorhinolaryngology
https://www.readbyqxmd.com/read/28440501/transfer-of-cd11c-lamina-propria-mononuclear-phagocytes-from-post-infectious-irritable-bowel-syndrome-causes-mucosal-barrier-dysfunction-and-visceral-hypersensitivity-in-recipient-mice
#16
Ya-Jun Ren, Lei Zhang, Tao Bai, Hong-Lu Yu, Ying Li, Wei Qian, Si Jin, Zhi-Fan Xiong, Huan Wang, Xiao-Hua Hou
The role of low-grade inflammation in the development of post‑infectious irritable bowel syndrome (PI‑IBS) has attracted increasing attention. Abnormal CD11c+ mononuclear phagocytes, such as dendritic cells (DCs), macrophages, and monocytes, are involved in the disruption of immune tolerance in organisms, which can lead to the development of chronic inflammatory diseases. The present study tested the hypothesis that CD11c+ lamina propria mononuclear phagocytes (CD11c+ LPMPs) contribute to increased mucosal permeability and visceral hypersensitivity in a PI‑IBS mouse model...
April 25, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28438836/a-wnt-notch-pax7-signaling-network-supports-tissue-integrity-in-tongue-development
#17
Xiao-Jing Zhu, Xueyan Yuan, Min Wang, Yukun Fang, Yudong Liu, Xiaoyun Zhang, Xueqin Yang, Yan Li, Jianying Li, Feixue Li, Zhong-Min Dai, Mengsheng Qiu, Ze Zhang, Zunyi Zhang
The tongue is one of the major structures involved in human food intake and speech. Tongue malformations such as aglossia, microglossia, and ankyloglossia are congenital birth defects, greatly affecting individuals' quality of life. However, the molecular basis of the tissue-tissue interactions that ensure tissue morphogenesis to form a functional tongue remains largely unknown. Here we show that ShhCre-mediated epithelial deletion of Wntless (Wls), the key regulator for intracellular Wnt trafficking, leads to lingual hypoplasia in mice...
April 24, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28438290/programmed-death-ligand-1-pd-l1-expression-and-tumor-microenvironment-implications-for-patients-with-oral-precancerous-lesions
#18
Takahiro Yagyuu, Kinta Hatakeyama, Mitsuhiko Imada, Miyako Kurihara, Yumiko Matsusue, Kazuhiko Yamamoto, Chiho Obayashi, Tadaaki Kirita
OBJECTIVES: Cancer immunoediting represents a relatively novel concept attempting to explain the process of tumor escape from the host immune system response. Here, we attempted to elucidate the role of programmed death ligand 1 (PD-L1), the tumor microenvironment, and tumor escape mechanisms that allow malignant transformation of oral precancerous lesions. MATERIALS AND METHODS: Patients with oral precancerous lesions managed at the Nara Medical University Hospital, Japan, (n=120) were enrolled in this study...
May 2017: Oral Oncology
https://www.readbyqxmd.com/read/28435976/-role-of-igg-plasma-cells-in-the-change-of-protein-c-system-in-ulcerative-colitis
#19
Xu-Hong Lin, Jun-Ling Guo, Yu-Qing Wen, Yu-Xia Li, Dan-Dan Wei, Rui-Lin Yang, Xiao-Yun Mu, Hui-Chao Wang
The present study is designed to explore the role of plasma cells in the change of protein C system (PCS) in ulcerative colitis (UC). Dextran sulfate sodium (DSS, 4% in concentration) was used to induce mouse UC model. The plasma cells and the type of immune complex in colon were observed by immunofluorescence. The amount and type of plasma cells separated from colonic mucosal lamina propria were detected by flow cytometry using anti-CD54(+)CD38(+) and IgA/M/G antibodies, respectively. After stimulation of macrophages by IgG type immune complex, TNF-α and IL-6 levels were evaluated by ELISA...
April 25, 2017: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/28434818/expression-of-a-kinase-anchor-protein-13-and-rho-associated-coiled-coil-containing-protein-kinase-in-restituted-and-regenerated-mucosal-epithelial-cells-following-mucosal-injury-and-colorectal-cancer-cells-in-mouse-models
#20
Yumi Kangawa, Toshinori Yoshida, Takeshi Tanaka, Akira Kataoka, Naomi Koyama, Tomoka Ohsumi, Shim-Mo Hayashi, Makoto Shibutani
We demonstrate the expression patterns of A-kinase anchor protein 13 (AKAP13), a scaffold protein that acts upstream of Rho signaling, and Rho-associated coiled-coil containing protein kinase (ROCK) 1/2 in mouse colorectal cancer and during the healing stage of mouse colitis. BALB/c mice received an intraperitoneal injection of azoxymethane at 10mg/kg, followed by two 7-day cycles of 3% dextran sulfate sodium (DSS) administered through their drinking water to induce colon cancer, or a 7-day administration of 4% DSS to induce colitis...
April 20, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
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