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https://www.readbyqxmd.com/read/28320072/constitutive-androstane-receptor-regulates-the-intestinal-mucosal-response-to-injury
#1
Grace M Hudson, Kyle L Flannigan, Sarah L Erickson, Fernando A Vicentini, Alexandra Zamponi, Christina L Hirota, Laurie Alston, Christophe Altier, Subrata Ghosh, Kevin P Rioux, Sridhar Mani, Thomas K Chang, Simon A Hirota
BACKGROUND AND PURPOSE: The pathogenesis of the inflammatory bowel diseases(IBD), composed of Crohn's disease(CD) and ulcerative colitis(UC), involves aberrant interactions between a genetically susceptible individual, their microbiota and environmental factors. Alterations in xenobiotic receptor expression and function are associated with increased risk for IBD. In the current study, we assessed the role of the constitutive androstane receptor(CAR), a xenobiotic receptor closely related to the pregnane X receptor, in the regulation of intestinal mucosal homeostasis...
March 20, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28318933/anaerobic-oxidation-of-methane-coupled-to-thiosulfate-reduction-in-a-biotrickling-filter
#2
Chiara Cassarini, Eldon R Rene, Susma Bhattarai, Giovanni Esposito, Piet N L Lens
Microorganisms from an anaerobic methane oxidizing sediment were enriched with methane gas as the substrate in a biotrickling filter (BTF) using thiosulfate as electron acceptor for 213days. Thiosulfate disproportionation to sulfate and sulfide were the dominating sulfur conversion process in the BTF and the sulfide production rate was 0.5mmoll(-1)day(-1). A specific group of sulfate reducing bacteria (SRB), belonging to the Desulforsarcina/Desulfococcus group, was enriched in the BTF. The BTF biomass showed maximum sulfate reduction rate (0...
March 6, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28316881/occurrence-of-concurrent-infections-with-multiple-serotypes-of-dengue-viruses-during-2013-2015-in-northern-kerala-india
#3
Manchala Nageswar Reddy, Ranjeet Dungdung, Lathika Valliyott, Rajendra Pilankatta
BACKGROUND: Dengue is a global human public health threat, causing severe morbidity and mortality. The occurrence of sequential infection by more than one serotype of dengue virus (DENV) is a major contributing factor for the induction of Dengue Hemorrhagic Fever (DHF) and Dengue Shock Syndrome (DSS), two major medical conditions caused by DENV infection. However, there is no specific drug or vaccine available against dengue infection. There are reports indicating the increased incidence of concurrent infection of dengue in several tropical and subtropical regions...
2017: PeerJ
https://www.readbyqxmd.com/read/28316214/-expression-of-tyrosine-and-threonine-protein-kinase-in-carcinogenic-process-of-colorectal-cancer-and-its-relationship-with-prognosis
#4
X L Zhang, W X Han, Y M Ma, H W Y Baohan, X H Zhao, H Y Wang
Objective: To investigate the expression of TTK (tyrosine and threonine protein kinase) in the process of colorectal cancer (CRC) development and its relationship to prognosis in CRC patients. Methods: Colitis-associated colon cancer model was induced by azoxymethane (AOM) and dextran sulfate sodium (DSS) in C57BL/6 mice. Mice at four different stages of colon cancer development were obtained, named AD1 (inflammation of the recovery), AD2 (mild dysplasia), AD3 (adenoma) and AD4 (adenocarcinoma), as well as negative control (no treatment)...
March 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28315964/biological-predictors-of-radiosensitivity-in-head-and-neck-squamous-cell-carcinoma
#5
Mathias Fiedler, Florian Weber, Matthias G Hautmann, Frank Haubner, Torsten E Reichert, Christoph Klingelhöffer, Stephan Schreml, Johannes K Meier, Arndt Hartmann, Tobias Ettl
OBJECTIVES: The aim of this study is to investigate the influence of prognostic biomarkers on radiosensitivity and survival of advanced head and neck squamous cell carcinomas treated by primary (chemo)radiation. MATERIAL AND METHODS: The clinicopathological data and immunohistochemical staining of p16, c-Met, survivin, PD-1, and PD-L1 of 82 primarily (chemo)irradiated patients with head and neck squamous cell carcinoma were analyzed. Associations with local and locoregional radiation response, overall survival (OS), disease-free (DFS), and disease-specific survival (DSS) were assessed...
March 18, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28301579/a-novel-model-of-colitis-associated-cancer-in-samp1-yitfc-mice-with-crohn-s-disease-like-ileitis
#6
Paola Menghini, Luca Di Martino, Loris R Lopetuso, Daniele Corridoni, Joshua C Webster, Wei Xin, Kristen O Arseneau, Minh Lam, Theresa T Pizarro, Fabio Cominelli
Patients with inflammatory bowel disease (IBD) are at increased risk for developing colorectal cancer. Evidence suggests that colonic dysplasia and colitis-associated cancer (CAC) are often linked to repeated cycles of epithelial cell injury and repair in the context of chronic production of inflammatory cytokines. Several mouse models of CAC have been proposed, including chemical induction through exposure to dextran sulfate sodium (DSS) with the genotoxic agents azoxymethane (AOM), 1,2-dymethylhydrazine (DHM) or targeted genetic mutations...
2017: PloS One
https://www.readbyqxmd.com/read/28301268/efficacy-and-toxicity-profiles-of-two-chemoradiotherapies-for-stage-ii-laryngeal-cancer-a-comparison-between-late-course-accelerated-hyperfractionation-lcahf-and-conventional-fractionation-cf
#7
Eiichiro Okazaki, Naoki Matsushita, Mari Tashiro, Yasuhiko Shimatani, Kentaro Ishii, Masako Hosono, Masahiro Oishi, Yuichi Teranishi, Hiroyoshi Iguchi, Yukio Miki
OBJECTIVE: To evaluate the treatment results of late course accelerated hyperfractionation (LCAHF) compared with conventional fractionation (CF) for stage II laryngeal cancer. METHODS: Fifty-nine consecutive patients treated for stage II laryngeal cancer were retrospectively reviewed. Thirty-two patients underwent LCAHF, twice-daily fractions during the latter half with a total dose of 69 Gy. Twenty-seven patients received CF of 70 Gy. RESULTS: The local control rates (LCRs), overall survival (OS), and disease-specific survival (DSS) at 5 years were 80...
March 16, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28299415/multi-mycotoxin-analysis-using-dried-blood-spots-and-dried-serum-spots
#8
Bernd Osteresch, Susana Viegas, Benedikt Cramer, Hans-Ulrich Humpf
In this study, a rapid multi-mycotoxin approach was developed for biomonitoring and quantification of 27 important mycotoxins and mycotoxin metabolites in human blood samples. HPLC-MS/MS detection was used for the analysis of dried serum spots (DSS) and dried blood spots (DBS). Detection of aflatoxins (AFB1, AFB2, AFG1, AFG2, AFM1), trichothecenes (deoxynivalenol, DON; DON-3-glucoronic acid, DON-3-GlcA; T-2; HT-2; and HT-2-4-GlcA), fumonisin B1 (FB1), ochratoxins (OTA and its thermal degradation product 2'R-OTA; OTα; 10-hydroxychratoxin A, 10-OH-OTA), citrinin (CIT and its urinary metabolite dihydrocitrinone, DH-CIT), zearalenone and zearalanone (ZEN, ZAN), altenuene (ALT), alternariols (AOH; alternariol monomethyl ether, AME), enniatins (EnA, EnA1, EnB, EnB1) and beauvericin (Bea) was validated for two matrices, serum (DSS), and whole blood (DBS)...
March 15, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28295446/a-recombinant-cystatin-from-ascaris-lumbricoides-attenuates-inflammation-of-dss-induced-colitis
#9
Sandra Coronado, Luis Barrios, Josefina Zakzuk, Ronald Regino, Velky Ahumada, Luis Franco, Yanet Ocampo, Luis Caraballo
Helminthiasis may ameliorate inflammatory diseases, such as inflammatory bowel disease and asthma. Information about immunomodulators from Ascaris lumbricoides is scarce, but could be important considering the co-evolutionary relationships between helminths and humans. We evaluated the immunomodulatory effects of a recombinant cystatin from A. lumbricoides on an acute model of Dextran Sodium Sulphate (DSS)-induced colitis in mice. From an A. lumbricoides cDNA library we obtained a recombinant cystatin (rAl-CPI)...
March 10, 2017: Parasite Immunology
https://www.readbyqxmd.com/read/28293786/nonanaplastic-follicular-cell-derived-thyroid-carcinoma-mitosis-and-necrosis-in-long-term-follow-up
#10
Daniel Bräuner Skansing, Stefano Christian Londero, Pia Asschenfeldt, Stine Rosenkilde Larsen, Christian Godballe
Nonanaplastic follicular cell-derived thyroid carcinoma (NAFCTC) includes differentiated- (DTC) and poorly differentiated thyroid carcinoma (PDTC). DTC has an excellent prognosis, while PDTC is situated between DTC and anaplastic carcinomas. Short-term studies suggest that PDTC patients diagnosed only on tumor necrosis and/or mitosis have a prognosis similar to those diagnosed according to the TURIN proposal. The purpose of this study was to evaluate prognosis for NAFCTC based on long-term follow-up illuminating the significance of tumor necrosis and mitosis...
March 14, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28293084/hydrogen-rich-water-protects-against-in%C3%AF-ammatory-bowel-disease-in-mice-by-inhibiting-endoplasmic-reticulum-stress-and-promoting-heme-oxygenase-1-expression
#11
Nai-Ying Shen, Jian-Bin Bi, Jing-Yao Zhang, Si-Min Zhang, Jing-Xian Gu, Kai Qu, Chang Liu
AIM: To investigate the therapeutic effect of hydrogen-rich water (HRW) on inflammatory bowel disease (IBD) and to explore the potential mechanisms involved. METHODS: Male mice were randomly divided into the following four groups: control group, in which the mice received equivalent volumes of normal saline (NS) intraperitoneally (ip); dextran sulfate sodium (DSS) group, in which the mice received NS ip (5 mL/kg body weight, twice per day at 8 am and 5 pm) for 7 consecutive days after IBD modeling; DSS + HRW group, in which the mice received HRW (in the same volume as the NS treatment) for 7 consecutive days after IBD modeling; and DSS + HRW + ZnPP group, in which the mice received HRW (in the same volume as the NS treatment) and ZnPP [a heme oxygenase-1 (HO-1) inhibitor, 25 mg/kg] for 7 consecutive days after IBD modeling...
February 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28290606/3-daidzein-sulfonate-sodium-inhibits-neuronal-apoptosis-induced-by-cerebral-ischemia-reperfusion
#12
Ruizhen Liu, Xinming Zhong, Jing Zeng, Zhihua Huang, Xiao Li, Hai Xiao, Qin Chen, Dongliang Li
This study aimed to observe the effects of 3'-daidzein sulfonate sodium (DSS) on ischemia-reperfusion-induced brain injury and to analyze the mechanisms responsible for neuronal apoptosis. Focal ischemias were induced in male Sprague-Dawley rats using middle cerebral artery occlusion. The rats were divided into 5 groups based on sham surgery or real occlusion, and treatment with different doses of DSS (0.5, 1.0 and 2.0 mg/kg) or normal saline (model group), injected preoperatively into the rats with cerebral occlusion...
March 10, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28289440/role-of-tlr1-tlr2-and-tlr6-in-the-modulation-of-intestinal-inflammation-and-candida-albicans-elimination
#13
Laura Choteau, Hélène Vancraeyneste, Didier Le Roy, Laurent Dubuquoy, Luiginia Romani, Thierry Jouault, Daniel Poulain, Boualem Sendid, Thierry Calandra, Thierry Roger, Samir Jawhara
BACKGROUND: Toll-like receptors (TLRs) are the major pattern recognition receptors that mediate sensing of a wide range of microorganisms. TLR2 forms heterodimers with either TLR1 or TLR6, broadening its ligand diversity against pathogens. TLR1, TLR2 and TLR6 have been implicated in the recognition of Candida albicans, an opportunistic fungal pathogen that colonizes the gastrointestinal tract. In this study, we explored whether the deficiency in TLR1, TLR2 or TLR6 impacts C. albicans colonization and inflammation-associated colonic injury in the dextran sulfate sodium (DSS)-induced colitis in mice...
2017: Gut Pathogens
https://www.readbyqxmd.com/read/28287161/angiopoietin-like-4-mediates-colonic-inflammation-by-regulating-chemokine-transcript-stability-via-tristetraprolin
#14
Terri Phua, Ming Keat Sng, Eddie Han Pin Tan, Dickson Shao Liang Chee, Yinliang Li, Jonathan Wei Kiat Wee, Ziqiang Teo, Jeremy Soon Kiat Chan, Maegan Miang Kee Lim, Chek Kun Tan, Pengcheng Zhu, Velmurugesan Arulampalam, Nguan Soon Tan
Many gastrointestinal diseases exhibit a protracted and aggravated inflammatory response that can lead to hypercytokinaemia, culminating in extensive tissue damage. Recently, angiopoietin-like 4 (ANGPTL4) has been implicated in many inflammation-associated diseases. However, how ANGPTL4 regulates colonic inflammation remains unclear. Herein, we show that ANGPTL4 deficiency in mice (ANGPTL4(-/-)) exacerbated colonic inflammation induced by dextran sulfate sodium (DSS) or stearic acid. Microbiota was similar between the two genotypes prior DSS challenge...
March 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28287113/loss-of-t-cell-protein-tyrosine-phosphatase-in-the-intestinal-epithelium-promotes-local-inflammation-by-increasing-colonic-stem-cell-proliferation
#15
Stéphanie Bussières-Marmen, Valérie Vinette, Jeremy Gungabeesoon, Isabelle Aubry, Luis Alberto Pérez-Quintero, Michel L Tremblay
T-cell protein tyrosine phosphatase (TC-PTP) has a critical role in the development of the immune system and has been identified as a negative regulator of inflammation. Single-nucleotide polymorphisms in the TC-PTP locus have been associated with increased susceptibility to inflammatory bowel diseases (IBDs) in patients. To further understand how TC-PTP is related to IBDs, we investigated the role of TC-PTP in maintaining the intestinal epithelial barrier using an in vivo genetic approach. Intestinal epithelial cell (IEC)-specific deletion of TC-PTP was achieved in a mouse model at steady state and in the context of dextran sulphate sodium (DSS)-induced colitis...
March 13, 2017: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/28284792/screening-of-the-optimized-prescription-from-suqingwan-in-terms-of-its-therapeutic-effect-on-dss-induced-ulcerative-colitis-by-its-regulation-of-inflammatory-and-oxidative-mediators
#16
Jingxuan Shao, Zhihui Liu, Lin Wang, Zehai Song, Hang Chang, Na Han, Jun Yin
ETHNOPHARMACOLOGICAL RELEVANCE: Suqingwan (SQW), a traditional Chinese medicine used for treating ulcerative colitis (UC), is composed of 13 kinds of Traditional Chinese medicines (TCMs). According to TCM theory, we investigated whether a simplified prescription composed of the herbs with some functions, would have similar effects to SQW and examined its potential treatment mechanism of action. MATERIALS AND METHODS: We categorized the herbs in SQW into four groups according to their traditional functions and used an orthogonal experimental design to obtain nine separated prescriptions (SPs) of SQW...
March 8, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28282584/pomegranate-polyphenolics-reduce-inflammation-and-ulceration-in-intestinal-colitis-involvement-of-the-mir-145-p70s6k1-hif1%C3%AE-axis-in-vivo-and-in-vitro
#17
Hyemee Kim, Nivedita Banerjee, Maritza A Sirven, Yasushi Minamoto, Melissa E Markel, Jan S Suchodolski, Stephen T Talcott, Susanne U Mertens-Talcott
This study investigated the potential role of the p70S6K1/HIF1α axis in the anti-inflammatory activities of pomegranate (Punica granatum L.) polyphenolics in dextran sodium sulfate (DSS)-induced colitis in Sprague-Dawley rats and in lipopolysaccharide (LPS)-treated CCD-18Co colon-myofibroblastic cells. Rats were administered either control (CT) or pomegranate beverage (PG), containing ellagic acid and ellagitannins, then exposed to three cycles of 3% DSS followed by a 2-week recovery period. PG protected against DSS-induced colon inflammation and ulceration (50% and 66...
February 27, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28278072/chronic-inflammation-confers-to-the-metabolic-reprogramming-associated-with-tumorigenesis-of-colorectal-cancer
#18
Dingding Qu, Liangliang Shen, Shaoqing Liu, Huichen Li, Yongzheng Ma, Ruohan Zhang, Kaichun Wu, Libo Yao, Jipeng Li, Jian Zhang
It's well known that microenvironment inflammatory signals could promote cancer development and progression. In colorectal cancer (CRC), chronic inflammation is a major driving mechanism for the development of CRC in patients having long-standing inflammatory bowel disease (IBD). Though it has been addressed that cancer cells ferment much of their glucose supply into lactate regardless of the presence of oxygen, it is unclear whether cell metabolism has been reprogramed during the process from IBD to CRC. Herein, with dextran sulfate sodium (DSS)-induced mouse colitis model, we found that inflammation upregulated key glycolytic enzymes expression via activation of STAT3/c-Myc signaling pathway...
February 25, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28277296/botox-a-injection-of-salivary-glands-for-drooling
#19
Ana Alvarenga, Miguel Campos, Mariana Dias, Lina Melão, José Estevão-Costa
BACKGROUND AND PURPOSE: Drooling is a challenging entity to manage. Botulinum toxin A (BOTOX-A) infiltration of salivary glands is a promising alternative to surgical treatment. This study aims to assess the outcome of BOTOX-A salivary glands infiltration in children with drooling. METHODS: Patients treated between January 2012 and March 2015 were enrolled. BOTOX-A was injected in the parotid and submandibular glands under ultrasound control and general inhalational anesthesia...
October 14, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28277152/visuospatial-processing-in-adolescents-with-critical-congenital-heart-disease-organization-integration-and-implications-for-academic-achievement
#20
Jessica L Bean Jaworski, Matthew T White, David R DeMaso, Jane W Newburger, David C Bellinger, Adam R Cassidy
Among the most significant factors affecting quality of life in individuals with critical congenital heart disease (CCHD) are neurodevelopmental challenges, including deficits in visuospatial processing and academic achievement. Few studies have compared outcomes across CCHD subgroups, despite their significant differences in anatomy/physiology and medical/surgical courses. This study compared visuospatial processing abilities using the Developmental Scoring System for the Rey-Osterrieth Complex Figure (DSS-ROCF) across groups of adolescents with CCHD (d-transposition of the great arteries [TGA, n = 139], Tetralogy of Fallot [TOF, n = 68], single-ventricle cardiac anatomy requiring the Fontan operation [SVF, n = 145]) and a group of healthy controls (CTR, n = 111), and examined the validity of visuospatial processing in predicting concurrent academic outcomes...
February 16, 2017: Child Neuropsychology: a Journal on Normal and Abnormal Development in Childhood and Adolescence
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