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lamina propria

Massimo Alfano, Manuela Nebuloni, Raffaele Allevi, Pietro Zerbi, Erika Longhi, Roberta Lucianò, Irene Locatelli, Angela Pecoraro, Marco Indrieri, Chantal Speziali, Claudio Doglioni, Paolo Milani, Francesco Montorsi, Andrea Salonia
In the fields of biomaterials and tissue engineering simulating the native microenvironment is of utmost importance. As a major component of the microenvironment, the extracellular matrix (ECM) contributes to tissue homeostasis, whereas modifications of native features are associated with pathological conditions. Furthermore, three-dimensional (3D) geometry is an important feature of synthetic scaffolds favoring cell stemness, maintenance and differentiation. We analyzed the 3D structure, geometrical measurements and anisotropy of the ECM isolated from (i) human bladder mucosa (basal lamina and lamina propria) and muscularis propria; and, (ii) bladder carcinoma (BC)...
October 25, 2016: Scientific Reports
Hongqin Song, Dandan Liu, Jinjun Xu, Lili Wu, Yabin Dai, Mei Liu, Jianping Tao
Twenty-one, 25-day-old, artificially reared, coccidia-free goslings (Anser cygnoides var. domestica) were inoculated orally with 0.5 × 10(4), 1 × 10(4), or 100 × 10(4) sporulated oocysts of Eimeria anseris and sacrificed at intervals from 24 to 216 h post-inoculation (HPI). Nine uninfected goslings served as negative controls. Parts of the visceral organs from goslings, including the intestines, kidneys, and liver, were fixed, sectioned, and observed microscopically. The results revealed that two generations of meronts occurred in the life cycle of E...
October 22, 2016: Parasitology Research
Arzu Tatar, Mukadder Korkmaz, Muhammed Yayla, Elif Polat, Hakan Uslu, Zekai Halici, Secil N Parlak
INTRODUCTION: For the treatment of rhinosinusitis antibiotics are used frequently. Concerns have been raised regarding the adverse effects of antibiotics and growing resistance. The lack of discovery of new antibiotic compounds has increased the necessity for exploration of non-antibiotic compounds that have antibacterial activity. Amlodipine is a non-antibiotic compound with anti-inflammatory activity. OBJECTIVE: In this study we aimed to investigate the potential role of amlodipine in treatment of rhinosinusitis by evaluating its effects on tissue oxidative status, mucosal histology and inflammation...
September 28, 2016: Brazilian Journal of Otorhinolaryngology
Matthias Holzlechner, Katharina Strasser, Elitsa Zareva, Luise Steinhaeuser, Hanna Birnleitner, Andrea Beer, Michael Bergmann, Rudolf Oehler, Martina Marchetti-Deschmann
Tissue-resident immune cells differ from the corresponding blood cells in many functional aspects. Although the proteome of blood immune cells is well investigated there are almost no data on tissue-resident immune cells. Here we explored the potential of MALDI-TOF-MS imaging (MSI) to investigate these cells in colon tissue, which exhibits a strong immune infiltration. MSI identified several proteinaceous markers that colocalized with specific structures of the colon such as mucosa or muscularis mucosae in six patients...
October 18, 2016: Journal of Proteome Research
Anna Keppner, Sumedha Malsure, Antoine Nobile, Muriel Auberson, Olivier Bonny, Edith Hummler
BACKGROUND: Inflammatory bowel diseases (IBD) including ulcerative colitis and Crohn's disease are diseases with impaired epithelial barrier function. We aimed to investigate whether mutated prostasin and thus, reduced colonic epithelial sodium channel activity predisposes to develop an experimentally dextran sodium sulfate (DSS)-induced colitis. METHODS: Wildtype, heterozygous (fr/+), and homozygous (fr/fr) prostasin-mutant rats were treated 7 days with DSS followed by 7 days of recovery and analyzed with respect to histology, clinicopathological parameters, inflammatory marker mRNA transcript expression, and sodium transporter protein expression...
October 12, 2016: Inflammatory Bowel Diseases
Haruka Yokota, Ayaka Tsuzuki, Yuki Shimada, Azusa Imai, Daichi Utsumi, Takuya Tsukahara, Misaki Matsumoto, Kikuko Amagase, Kazumi Iwata, Akio Nakamura, Chihiro Yabe-Nishimura, Shinichi Kato
NOX1/NADPH oxidase, a non-phagocytic isoform of reactive oxygen species-producing enzymes, is highly expressed in the colon, but the physiological and pathophysiological roles of this isoform are not fully understood. The present study investigated the role of NOX1 in the development of colonic inflammation in a trinitrobenzene sulfonic acid (TNBS)-induced murine colitis model. Intrarectal injection of TNBS caused severe colitis accompanied by body weight loss, diarrhea, and increased MPO activity in wild-type (WT) mice...
October 17, 2016: Journal of Pharmacology and Experimental Therapeutics
Seungbum Kim, Gary Wang, Gilberto Lobaton, Eric Li, Tao Yang, Mohan Raizada
OBJECTIVE: Our previous studies have demonstrated that gut microbial dysbiosis is linked to high blood pressure in patients. This was associated with decreases in butyrate- and acetate- producing microbial populations. Thus, our objective in this study was to investigate the hypothesis that infusion of butyrate would impact dysbiosis, gut immunity and attenuate hypertension. DESIGN AND METHOD: C57B6 mice were divided into 4 groups; Saline infused, Angiotensin II (750ng/kg/min) infused, Ang II infused and butyrate treated (0...
September 2016: Journal of Hypertension
Chunyan Shao, Heng Wang, Xiaodu Wang, Sheng Jiang, Jing Sun, Houhui Song, Jianji Li
Endometritis is a common puerperal disease in livestock. Thus, a practical clinical test for the establishment of diagnosis is needed. We developed a goat model for subclinical endometritis diagnosis by examining cytological, ultrastructural features and molecular expression in cervical discharge collected by cervical cytobrush method. A suspension of E. coli was infused into the uterine horn of goats, and cervical discharge, peripheral blood and endomertrial biopsy samples were collected before inoculation and at 3, 6, 12, 24, 72, 120 and 168 hr post-inoculation (pi)...
October 16, 2016: Journal of Veterinary Medical Science
Naoto Kamiya, Hiroyoshi Suzuki, Takahito Suyama, Masayuki Kobayashi, Satoshi Fukasawa, Nobuyuki Sekita, Kazuo Mikami, Naoki Nihei, Yukio Naya, Tomohiko Ichikawa
BACKGROUND: A retrospective, multi-institutional collaborative study was conducted to evaluate the impact of second transurethral resection (TUR) on the clinical outcome of non-muscle invasive high-grade bladder cancer and to identify predictors of invasion to the lamina propria (pT1) or deeper and residual tumor at the second TUR. METHODS: The clinical and pathological features of 198 patients with non-muscle invasive high-grade bladder cancer treated in five medical institutions from April 1990 to March 2013 were reviewed retrospectively...
October 15, 2016: International Journal of Clinical Oncology
Xingguang Lin, Jialong Yang, Jinli Wang, Hongxiang Huang, Hong-Xia Wang, Pengcheng Chen, Shang Wang, Yun Pan, Yu-Rong Qiu, Gregory A Taylor, Bruce A Vallance, Jimin Gao, Xiao-Ping Zhong
T-cells play an important role in promoting mucosal immunity against pathogens, but the mechanistic basis for their homeostasis in the intestine is still poorly understood. We report here that T-cell-specific deletion of mTOR results in dramatically decreased CD4 and CD8 T-cell numbers in the lamina propria of both small and large intestines under both steady-state and inflammatory conditions. These defects result in defective host resistance against a murine enteropathogen, Citrobacter rodentium, leading to the death of the animals...
October 12, 2016: Scientific Reports
Sunhee Park, Tsion Abdi, Mark Gentry, Loren Laine
OBJECTIVES: Endoscopic remission in ulcerative colitis (UC) is associated with improved clinical outcomes. We assessed whether histological remission predicts clinical outcomes, estimated the magnitude of effect, and determined whether histological remission provides additional prognostic utility beyond clinical or endoscopic remission. METHODS: Bibliographic databases were searched for studies in inflammatory bowel disease providing baseline histological status and relation to an outcome of clinical relapse or exacerbation...
October 11, 2016: American Journal of Gastroenterology
Savino M Di Stasi, Cristian Verri, Francesco Celestino, Francesco De Carlo, Vincenzo Pagliarulo
Bladder cancer is very common and most cases are diagnosed as nonmuscle invasive disease, which is characterized by its propensity to recur and progress. Intravesical therapy is used to delay recurrence and progression, while cystectomy is reserved for patients who are refractory to transurethral resection and intravesical therapy. There is an increasing interest in methods to enhance the delivery of intravesical chemotherapeutic agents to improve efficacy. In vitro and in vivo studies demonstrated that electro-osmosis of mitomycin C (MMC) is more effective in delivering this drug into the urothelium, lamina propria, and superficial muscle layers of the bladder wall than is passive transport...
October 4, 2016: Urologia
M Acar, N Bayar Muluk, S Yigitaslan, B P Cengiz, P Shojaolsadati, H Karimkhani, S Ada, M Berkoz, C Cingi
OBJECTIVES: This study aimed to explore the effects of curcumin on experimental allergic rhinitis in rats. METHODS: Twenty-eight male Wistar albino rats were randomly divided into four groups: a control group; a group in which allergic rhinitis was induced and no treatment given; a group in which allergic rhinitis was induced followed by treatment with azelastine hydrochloride on days 21-28; and a group in which allergic rhinitis was induced followed by treatment with curcumin on days 21-28...
October 6, 2016: Journal of Laryngology and Otology
Ali Ibrahim Ali Al-Ezzy
AIM: To evaluate the Immunomodulatory effects of CagA expression; pepsinogen I, II & gastrin-17 on PMNs and lymphocytes Fas expression in inflammatory and gastric cells; demographic distribution of Fas molecule in gastric tissue and inflammatory cells. METHODS: Gastroduodenal biopsies were taken from 80 patients for histopathology and H. pylori diagnosis. Serum samples were used for evaluation of pepsinogen I (PGI); (PGII); gastrin-17 (G-17). RESULTS: Significant difference (p < 0...
September 15, 2016: Open Access Macedonian Journal of Medical Sciences
Amir Soltani, Eugene Haydn Walters, David W Reid, Shakti Dhar Shukla, Kaosia Nowrin, Chris Ward, H Konrad Muller, Sukhwinder Singh Sohal
BACKGROUND: This study assessed the effects of inhaled corticosteroid (ICS) on airway vascular remodeling in chronic obstructive pulmonary disease (COPD). METHODS: Thirty-four subjects with mild-to-moderate COPD were randomly allocated 2:1 to ICS or placebo treatment in a double-blinded clinical trial over 6 months. Available tissue was compared before and after treatment for vessel density, and expression of VEGF, TGF-β1, and TGF-β1-related phosphorylated transcription factors p-SMAD 2/3...
2016: International Journal of Chronic Obstructive Pulmonary Disease
Rosa Coelho, Armando Ribeiro, Roberto Silva, Elisabete Rios, Marco Silva, Guilherme Macedo
A 76-year-old female patient with a past medical history of diabetes mellitus, stage 3 chronic renal failure and iron deficiency anemia was referred for esophagogastroduodenoscopy (EGD) for evaluation of solid food dysphagia. She had been on oral therapy with ferrous sulfate for several years. Besides a Schatzki's ring the EGD revealed a duodenal mucosa with black-speckled pigmentation. Biopsies were performed and disclosed the deposition of brown (hemosiderin) pigment within macrophages in the lamina propria of normal villi...
October 2016: Revista Española de Enfermedades Digestivas
Masatoshi Morikawa, Satoshi Tsujibe, Junko Kiyoshima-Shibata, Yohei Watanabe, Noriko Kato-Nagaoka, Kan Shida, Satoshi Matsumoto
Phagocytes such as dendritic cells and macrophages, which are distributed in the small intestinal mucosa, play a crucial role in maintaining mucosal homeostasis by sampling the luminal gut microbiota. However, there is limited information regarding microbial uptake in a steady state. We investigated the composition of murine gut microbiota that is engulfed by phagocytes of specific subsets in the small intestinal lamina propria (SILP) and Peyer's patches (PP). Analysis of bacterial 16S rRNA gene amplicon sequences revealed that: 1) all the phagocyte subsets in the SILP primarily engulfed Lactobacillus (the most abundant microbe in the small intestine), whereas CD11bhi and CD11bhiCD11chi cell subsets in PP mostly engulfed segmented filamentous bacteria (indigenous bacteria in rodents that are reported to adhere to intestinal epithelial cells); and 2) among the Lactobacillus species engulfed by the SILP cell subsets, L...
2016: PloS One
Cristina Díaz Del Arco, Ángel Álvarez Sánchez, M Jesús Fernández Aceñero
Gastrointestinal xanthomas are infrequent non-neoplastic lesions characterized by the accumulation of foam cells in the lamina propria. They are commonly seen in association with dyslipidemia, chemotherapy or radiotherapy, and infections in immunosuppressed patients. However, no clear connection to hyperlipidemia has been found. They occur more frequently in the stomach, and are very rare in the small bowel and esophagus. We identified all cases of non-gastric xanthoma or xanthomatosis reported in the English literature by searching the PubMed database and retrospectively reviewed the clinical, endoscopic, and histopathologic features of the 11 cases of non-gastric gastrointestinal xanthomas diagnosed in our hospital...
September 2016: Journal of Gastrointestinal and Liver Diseases: JGLD
Qi Zhang, Cuiping Zhang, Fangzhi Chang, Kun Liang, Xiaoyan Yin, Xiaoyu Li, Kun Zhao, Qinghui Niu, Zibin Tian
Inflammatory bowel disease (IBD), including ulcerative colitis (UC) and Crohn's disease (CD), is a chronically intestinal autoimmune disease, the pathological mechanisms of which are not very clear. Wild type p-53 induced phosphatase 1 (Wip1), a serine/threonine protein phosphatase, has been reported to negatively regulate the inflammation in sepsis. However, the role of Wip1 in IBD is not very clear. Therefore, colonic tissues and peripheral blood from patients with IBD and healthy controls were collected to analyzed mRNA and protein expression of Wip1 using the method of qPCR and immunohistochemistry...
July 25, 2016: Cellular Immunology
Valerio Rossini, Katarina Radulovic, Christian U Riedel, Jan Hendrik Niess
Inflammatory bowel disease (IBD) is a chronic inflammation which affects the gastrointestinal tract (GIT). One of the best ways to study the immunological mechanisms involved during the disease is the T cell transfer model of colitis. In this model, immunodeficient mice (RAG(-/-) recipients) are reconstituted with naive CD4(+) T cells from healthy wild type hosts. This model allows examination of the earliest immunological events leading to disease and chronic inflammation, when the gut inflammation perpetuates but does not depend on a defined antigen...
2016: Journal of Visualized Experiments: JoVE
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