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https://www.readbyqxmd.com/read/28749264/pulmonary-lesions-caused-by-the-lungworm-didelphostrongylus-hayesi-in-the-opossum-didelphis-virginiana-in-colima-mexico
#1
Rubén A López-Crespo, Alfonso López-Mayagoitia, Rafael Ramírez-Romero, Julio Martínez-Burnes, Omar F Prado-Rebolledo, Luis J García-Márquez
Didelphostrongylus hayesi is an important and prevalent pulmonary nematode in the opossum ( Didelphis virginiana ). An in-depth description of the pulmonary lesions caused by this nematode is lacking. The objective of this investigation was to make a detailed account of the gross, subgross, and microscopic changes that occur in the lungs of opossums naturally infected with D. hayesi. Forty-four opossums trapped in the state of Colima, Mexico, were euthanized by an overdose of barbiturates. Following a postmortem examination, the right lung was cut from the main bronchi and placed in a Petri dish containing a saline solution for the detection and identification of live parasites...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28747917/upregulation-of-intestinal-barrier-function-in-mice-with-dss-induced-colitis-by-a-defined-bacterial-consortium-is-associated-with-expansion-of-il-17a-producing-gamma-delta-t-cells
#2
Ming Li, Bing Wang, Xiaotong Sun, Yan Tang, Xiaoqing Wei, Biying Ge, Yawei Tang, Ying Deng, Chunyang He, Jieli Yuan, Xia Li
Bacterial consortium transplantation (BCT) is a promising alternative to fecal microbiota transplantation in treating inflammatory bowel disease (IBD). Here, we showed that a defined bacterial consortium derived from healthy mice was able to enhance the intestinal barrier function of mice with dextran sulfate sodium (DSS)-induced colitis. Interestingly, we found that the bacterial consortium significantly promoted the expansion of IL-17A-producing γδT (γδT17) cells in colonic lamina propria, which was closely associated with changing of intestinal microbial composition...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28746740/ccr6-promotes-steady-state-intestinal-mononuclear-phagocyte-association-with-the-intestinal-epithelium-imprinting-and-immune-surveillance
#3
Keely G McDonald, Leroy W Wheeler, Jeremiah R McDole, Shannon Joerger, Jenny K Gustafsson, Devesha H Kulkarni, Kathryn A Knoop, Ifor R Williams, Mark J Miller, Rodney D Newberry
The intestinal lamina propria (LP) contains antigen presenting cells with features of dendritic cells (DCs) and macrophages, collectively referred to as mononuclear phagocytes (MNPs). Association of MNPs with the epithelium is implied to play an important role in multiple facets of intestinal immunity including imprinting MNPs with the ability to induce IgA production, inducing the expression of gut homing molecules on T cells, facilitating the capture of luminal antigens and microbes, and subsequent immune responses in the mesenteric lymph node (MLN)...
July 26, 2017: Immunology
https://www.readbyqxmd.com/read/28746532/effects-of-emissions-from-sugar-cane-burning-on-the-trachea-and-lungs-of-wistar-rats
#4
Verena Sampaio Barbosa Matos, Felipe da Silva Gomes, Tarcio Macena Oliveira, Renata da Silva Schulz, Lídia Cristina Villela Ribeiro, Astria Dias Ferrão Gonzales, Januário Mourão Lima, Marcos Lázaro da Silva Guerreiro
Objective: To evaluate the effects of exposure to emissions from sugar cane burning on inflammatory mechanisms in tissues of the trachea and lung parenchyma in Wistar rats after different periods of exposure. Methods: This was an experimental open randomized study. The animals were divided into four groups: a control group (CG) underwent standard laboratory conditions, and three experimental groups were exposed to emissions from sugar cane burning over different periods of time, in days-1 (EG1), 7 (EG7), and 21 (EG21)...
May 2017: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/28745620/identification-of-erythromyeloid-progenitors-and-their-progeny-in-the-mouse-embryo-by-flow-cytometry
#5
Lorea Iturri, Javier Saenz Coronilla, Yvan Lallemand, Elisa Gomez Perdiguero
Macrophages are professional phagocytes from the innate arm of the immune system. In steady-state, sessile macrophages are found in adult tissues where they act as front line sentinels of infection and tissue damage. While other immune cells are continuously renewed from hematopoietic stem and progenitor cells (HSPC) located in the bone marrow, a lineage of macrophages, known as resident macrophages, have been shown to be self-maintained in tissues without input from bone marrow HSPCs. This lineage is exemplified by microglia in the brain, Kupffer cells in the liver and Langerhans cells in the epidermis among others...
July 17, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28733891/consequences-of-bisphenol-a-perinatal-exposure-on-immune-responses-and-gut-barrier-function-in-mice
#6
Yann Malaisé, Sandrine Ménard, Christel Cartier, Corinne Lencina, Caroline Sommer, Eric Gaultier, Eric Houdeau, Laurence Guzylack-Piriou
The potent immunomodulatory effect of the endocrine disruptor bisphenol A during development and consequences during life span are of increasing concern. Particular interests have been raised from animal studies regarding the risk of developing food intolerance and infection. We aimed to identify immune disorders in mice triggered by perinatal exposure to bisphenol A. Gravid mice were orally exposed to bisphenol (50 μg/kg body weight/day) from day 15 of pregnancy until weaning. Gut barrier function, local and systemic immunity were assessed in adult female offspring...
July 21, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28732179/kgf-enhances-oral-epithelial-adhesion-and-rete-peg-elongation-via-integrins
#7
G L Sa, X P Xiong, J G Ren, J Y Wang, H F Xia, Z K Liu, S G He, Y F Zhao
Oral epithelial adhesion to the lamina propria underlies the physiologic function of the oral mucosa and contributes to resisting bacterial invasion, preventing body fluid loss, and maintaining routine chewing; thus, understanding the factors that positively influence oral epithelial adhesion is a research topic of great interest. Rete pegs contribute to oral epithelial adhesion by enlarging the contact areas, whereas integrins are the major molecules that mediate epithelial cell adhesion to the basement membrane...
July 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28724740/grasshopper-mice-employ-distinct-vocal-production-mechanisms-in-different-social-contexts
#8
Bret Pasch, Isao T Tokuda, Tobias Riede
Functional changes in vocal organ morphology and motor control facilitate the evolution of acoustic signal diversity. Although many rodents produce vocalizations in a variety of social contexts, few studies have explored the underlying production mechanisms. Here, we describe mechanisms of audible and ultrasonic vocalizations (USVs) produced by grasshopper mice (genus Onychomys). Grasshopper mice are predatory rodents of the desert that produce both loud, long-distance advertisement calls and USVs in close-distance mating contexts...
July 26, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28718368/remodeling-of-extracellular-matrix-of-the-lamina-propria-in-the-uninvolved-human-rectal-mucosa-10-and-20%C3%A2-cm-away-from-the-malignant-tumor
#9
Sanja Z Despotović, Novica M Milićević, Dragoslav P Milošević, Nebojša Despotović, Predrag Erceg, Petar Svorcan, Udo Schumacher, Sebastian Ullrich, Gordana Mihajlović, Dragan Kalem, Srđan Marković, Ivana M Lalić, Aleksandar J Krmpot, Mihailo D Rabasović, Dejan V Pantelić, Svetlana Z Jovanić, Thomas Rösch, Živana Milićević
In recent years, it has been demonstrated that malignancy arises and advances through the molecular interplay between tumor cells and non-malignant elements of the tumor stroma, that is, fibroblasts and extracellular matrix. However, in contrast to the mounting evidence about the role of tumor stroma in the genesis and progression of the malignant disease, there are very few data regarding the uninvolved stromal tissue in the remote surrounding of the tumor. Using the objective morphometric approach in patients with adenocarcinoma, we demonstrate the remodeling of extracellular matrix of the lamina propria in the uninvolved rectal mucosa 10 and 20 cm away from the neoplasm...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28711649/intramucosal-colorectal-carcinoma-with-invasion-of-the-lamina-propria-a-study-by-the-japanese-society-for-cancer-of-the-colon-and-rectum
#10
Motohiro Kojima, Hideyuki Shimazaki, Keiichi Iwaya, Takahiro Nakamura, Hiroshi Kawachi, Kazuhito Ichikawa, Shigeki Sekine, Shingo Ishiguro, Tadakazu Shimoda, Ryoji Kushima, Takashi Yao, Takahiro Fujimori, Kazuo Hase, Toshiaki Watanabe, Kenichi Sugihara, Gregory Y Lauwers, Atsushi Ochiai
Cancer invasion of the lamina propria is an important pathological finding. However, the clinicopathologic features and diagnostic accuracy of intramucosal carcinoma assessment in colorectal carcinoma (CRC) are unknown. In this study, intramucosal CRCs were reviewed in institutions affiliated with the Japanese Society for Cancer of the Colon and Rectum, and 32 cases with invasion of the lamina propria were identified. Next, a consensus meeting was held to select cases with a high consensus about the presence of invasion, which were reviewed by one Western pathologist for confirmation...
July 12, 2017: Human Pathology
https://www.readbyqxmd.com/read/28706424/new-magnifying-endoscopic-classification-for-superficial-esophageal-squamous-cell-carcinoma
#11
Su Jin Kim, Gwang Ha Kim, Moon Won Lee, Hye Kyung Jeon, Dong Hoon Baek, Bong Eun Lee, Geun Am Song
AIM: To assess the accuracy of a new magnifying endoscopy (ME) classification for predicting depth of invasion of superficial esophageal squamous cell carcinoma (SESCC). METHODS: This study included a total of 70 lesions in 69 patients with SESCC who underwent ME with narrow-band imaging (ME-NBI) before resection from August 2010 to July 2016. Accuracy of ME-NBI for predicting depth of invasion of SESCC was analyzed by using a new ME classification proposed by the Japan Esophageal Society (JES), and interobserver agreement was assessed...
June 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28702779/clinicopathological-characteristics-of-fallopian-tube-metastases-from-primary-endometrial-cervical-and-nongynecological-malignancies-a-single-institutional-experience
#12
Kiyong Na, Hyun-Soo Kim
This study was aimed at investigating the clinicopathological characteristics of tubal metastases originating from primary endometrial, cervical, and nongynecological malignancies. We performed a 4-year retrospective study in which fallopian tube tissues obtained from 60 patients with tubal metastases were examined. In addition, we compared the number of tubal metastasis cases detected during periods of representative or whole tubal sampling. Twenty-three and 37 tubal metastases were found in cases examined after representative and whole tubal sampling techniques, respectively...
July 13, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28700735/molecular-mechanisms-by-which-casein-glycomacropeptide-maintains-internal-homeostasis-in-mice-with-experimental-ulcerative-colitis
#13
Yongbo Cui, Chenchen Zhu, Zhu Ming, Jiangming Cao, Yali Yan, Pei Zhao, Guangchang Pang, Zixin Deng, Yi Yao, Qingsen Chen
OBJECTIVES: The aim of this study was to elucidate the molecular mechanisms by which food-derived casein glycomacropeptide (CGMP) maintains internal homeostasis in the intestinal mucosa and to investigate the effects of CGMP on the intestinal mucosal immunological barrier and related signal transduction pathways. METHODS: In this study, a famoxadone (OXZ)-induced mouse experimental ulcerative colitis (UC) model was built. The experimental UC mice were intragastrically administered milk-derived CGMP for four consecutive days...
2017: PloS One
https://www.readbyqxmd.com/read/28700533/cd103-dendritic-cell-function-is-altered-in-the-colons-of-patients-with-ulcerative-colitis
#14
Hiroshi Matsuno, Hisako Kayama, Junichi Nishimura, Yuki Sekido, Hideki Osawa, Soumik Barman, Takayuki Ogino, Hidekazu Takahashi, Naotsugu Haraguchi, Taishi Hata, Chu Matsuda, Hirofumi Yamamoto, Motoi Uchino, Hiroki Ikeuchi, Yuichiro Doki, Masaki Mori, Kiyoshi Takeda, Tsunekazu Mizushima
BACKGROUND: Human intestinal innate myeloid cells can be divided into 3 subsets: HLA-DRCD14 cells, HLA-DRCD103 dendritic cells (DCs), and HLA-DRCD14CD103 cells. CD103 DCs generate Treg cells and Th17 cells in the ileum, but their function in the colon remains largely unknown. This study characterized CD103 DCs in the colon and investigated whether these cells are implicated in the pathogenesis of ulcerative colitis (UC). METHODS: Normal intestinal mucosa was obtained from intact sites of patients with colorectal cancer (n = 24)...
July 11, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28698872/proliferation-of-interstitial-cells-in-the-cyclophosphamide-induced-cystitis-and-the-preventive-effect-of-imatinib
#15
Maria Sancho, Domingo Triguero, Aranzazu Lafuente-Sanchis, Angeles Garcia-Pascual
Cyclophosphamide- (CYP-) induced cystitis in the rat is a well-known model of bladder inflammation that leads to an overactive bladder, a process that appears to involve enhanced nitric oxide (NO) production. We investigated the changes in the number and distribution of interstitial cells (ICs) and in the expression of endothelial NO synthase (eNOS) in the bladder and urethra of rats subjected to either intermediate or chronic CYP treatment. Pronounced hyperplasia and hypertrophy of ICs were evident within the lamina propria and in the muscle layer...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28698717/from-blood-to-lesioned-brain-an-in-vitro-study-on-migration-mechanisms-of-human-nasal-olfactory-stem-cells
#16
Stéphane D Girard, Isabelle Virard, Emmanuelle Lacassagne, Jean-Michel Paumier, Hanae Lahlou, Françoise Jabes, Yves Molino, Delphine Stephan, Kevin Baranger, Maya Belghazi, Arnaud Deveze, Michel Khrestchatisky, Emmanuel Nivet, François S Roman, François Féron
Stem cell-based therapies critically rely on selective cell migration toward pathological or injured areas. We previously demonstrated that human olfactory ectomesenchymal stem cells (OE-MSCs), derived from an adult olfactory lamina propria, migrate specifically toward an injured mouse hippocampus after transplantation in the cerebrospinal fluid and promote functional recoveries. However, the mechanisms controlling their recruitment and homing remain elusive. Using an in vitro model of blood-brain barrier (BBB) and secretome analysis, we observed that OE-MSCs produce numerous proteins allowing them to cross the endothelial wall...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28698024/the-prevalence-and-characteristics-of-cow-s-milk-protein-allergy-in-infants-and-young-children-with-iron-deficiency-anemia
#17
Fu-Ping Lai, Yao-Jong Yang
BACKGROUND: The clinical presentation of cow's milk protein allergy (CMPA) in children varies. This retrospective study aimed to investigate the prevalence and clinical manifestations of CMPA in young children who visited for evaluation of iron deficiency anemia (IDA). METHODS: Patients aged <4 years who were diagnosed as having IDA (serum ferritin <12 ng/mL) at the National Cheng Kung University Hospital, Taiwan in the period 2005-2015 were reviewed. Their clinical presentations, laboratory data, endoscopy findings, and prognosis were analyzed...
June 30, 2017: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/28690289/systemic-mycobacteriosis-caused-by-mycobacterium-avium-subspecies-hominissuis-in-a-14-month-old-japanese-black-beef-steer
#18
Tetsuya Komatsu, Nanami Inaba, Keiko Kondo, Reiko Nagata, Satoko Kawaji, Tomoyuki Shibahara
A 14-month-old Japanese black beef steer presented with severe chronic diarrhea and emaciation and was euthanized. Postmortem examination showed thickened and corrugated intestinal mucosa and enlarged granulomatous mesenteric lymph nodes with caseating necrosis. Numerous epithelioid cells and multinucleated giant cells infiltrated in the lamina propria and the submucosal tissue of the intestines. These cells were also observed in the systemic organs. Many acid-fast bacilli were detected in the cytoplasm of these cells and were identified as 'Mycobacterium avium subsp...
July 10, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28689694/is-restaging-transurethral-resection-necessary-in-patients-with-non-muscle-invasive-bladder-cancer-and-limited-lamina-propria-invasion
#19
François Audenet, Caitlyn Retinger, Christine Chien, Nicole E Benfante, Bernard H Bochner, S Machele Donat, Harry W Herr, Guido Dalbagni
OBJECTIVES: To evaluate the influence of lamina propria invasion type at initial transurethral resection (TUR) on restaging pathology. MATERIALS AND METHODS: We reviewed prospectively maintained records of all patients with a high-grade pT1 nonmuscle invasive bladder cancer who underwent both initial and restaging TUR within 6 weeks at our center between 2001 and 2016. The pathology of second TUR specimens was analyzed with regard to the characteristics of lamina propria invasion found at initial resection...
July 6, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28686482/outer-membrane-vesicles-blebbing-contributes-to-b-vulgatus-mpk-mediated-immune-response-silencing
#20
Jan Kevin Maerz, Alex Steimle, Anna Lange, Annika Bender, Birgit Fehrenbacher, Julia-Stefanie Frick
The Gram negative intestinal symbiont Bacteroides vulgatus mpk is able to prevent from induction of colonic inflammation in Rag1(-/-) mice and promotes immune balance in Il2(-/-) mice. These inflammation-silencing effects are associated with B. vulgatus mpk-mediated induction of semi-mature dendritic cells, especially in the colonic lamina propria (cLP). However the beneficial interaction of bacteria with host immune cells is limited due to the existence of a large mucus layer covering the intestinal epithelium...
July 7, 2017: Gut Microbes
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