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https://www.readbyqxmd.com/read/28224643/endophytic-phomopsis-sp-colonization-in-oryza-sativa-was-found-to-result-in-plant-growth-promotion-and-piperine-production
#1
Chithra S, Jasim B, Jyothis Mathew, Radhakrishnan E K
Endophytic fungi have been reported to have the acquired ability to synthesize host plant specific medicinal natural products. Many fungi with such properties have been characterized and optimized for the conditions which favor maximal production of desired products. However, the inherent plant colonization property of promising endophytic fungi is least studied. Exploiting the transgenome functioning of these fungi have immense applications to add beneficial features to non-host plants. In the present study, endophytic fungus Phomopsis sp...
February 22, 2017: Physiologia Plantarum
https://www.readbyqxmd.com/read/28224040/massilioclostridium-coli-gen-nov-sp-nov-a-new-member-of-the-clostridiaceae-family-isolated-from-the-left-colon-of-a-27-year-old-woman
#2
C I Lo, M Mailhe, D Ricaboni, V Vitton, A Benezech, C Michelle, N Armstrong, F Bittar, P-E Fournier, D Raoult, J-C Lagier
Massilioclostridium coli strain Marseille-P2976(T) (= CSUR P2976 = DSM 103344) is a new bacterial genus isolated from the left colon of a patient who underwent colonoscopy for colorectal cancer screening. Massilioclostridium coli is a Gram-negative bacillus, strict anaerobic, nonsporogenous and nonmotile organism. We describe here the strain Marseille-P2976(T) and provide its complete annotated genome sequence according to taxonogenomics concepts. Its genome is 2 985 330 bp long and contains 2562 predicted genes and 75 RNA genes...
March 2017: New Microbes and New Infections
https://www.readbyqxmd.com/read/28219521/butyrate-influences-intracellular-levels-of-adenine-and-adenine-derivatives-in-the-fungus-penicillium-restrictum
#3
Christoph Zutz, Yi Ming Chiang, Bettina Faehnrich, Markus Bacher, Roland Hellinger, Bernhard Kluger, Martin Wagner, Joseph Strauss, Kathrin Rychli
Butyrate, a small fatty acid, has an important role in the colon of ruminants and mammalians including the inhibition of inflammation and the regulation of cell proliferation. There is also growing evidence that butyrate is influencing the histone structure in mammalian cells by inhibition of histone deacetylation. Butyrate shows furthermore an antimicrobial activity against fungi, yeast and bacteria, which is linked to its toxicity at a high concentration. In fungi there are indications that butyrate induces the production of secondary metabolites potentially via inhibition of histone deacetylases...
April 2017: Microbiological Research
https://www.readbyqxmd.com/read/28218467/divergent-roles-of-p120-catenin-isoforms-linked-to-altered-cell-viability-proliferation-and-invasiveness-in-carcinogen-induced-rat-skin-tumors
#4
Rong Wang, Ying-Shiuan Chen, Wan-Mohaiza Dashwood, Qingjie Li, Christiane V Löhr, Kay Fischer, Emily Ho, David E Williams, Roderick H Dashwood
The heterocyclic amine 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) targets multiple organs for tumorigenesis in the rat, including the colon and the skin. PhIP-induced skin tumors were subjected to mutation screening, which identified genetic changes in Hras (7/40, 17.5%) and Tp53 (2/40, 5%), but not in Ctnnb1, a commonly mutated gene in PhIP-induced colon tumors. Despite the absence of Ctnnb1 mutations, β-catenin was overexpressed in nuclear and plasma membrane fractions from PhIP-induced skin tumors, coinciding with loss of p120-catenin from the plasma membrane, and the appearance of multiple p120-catenin-associated bands in the nuclear extracts...
February 20, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28214159/is-surveillance-for-colonization-of-carbapenem-resistant-gram-negative-bacteria-important-in-adult-bone-marrow-transplantation-units
#5
Hayati Demiraslan, Fatma Cevahir, Elife Berk, Gokhan Metan, Mustafa Cetin, Emine Alp
BACKGROUND: The aim of this study was to investigate the rate of carbapenem-resistant gram-negative bacilli (CRGNB) colonization and to analyze the risk factors associated with CRGNB colonization. METHODS: This prospective study was conducted in adult patients hospitalized in hematopoietic stem cell transplantation (HSCT) units over a period of 8 months. Rectal swab samples were obtained from each participant every Monday, and patients CRGNB positive on admission were excluded...
February 15, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28210082/multitarget-stool-dna-tests-increases-colorectal-cancer-screening-among-previously-noncompliant-medicare-patients
#6
Mark Prince, Lynn Lester, Rupal Chiniwala, Barry Berger
AIM: To determine the uptake of noninvasive multitarget stool DNA (mt-sDNA) in a cohort of colorectal cancer (CRC) screening non-compliant average-risk Medicare patients. METHODS: This cross sectional primary care office-based study examined mt-sDNA uptake in routine clinical practice among 393 colorectal cancer screening non-compliant Medicare patients ages 50-85 ordered by 77 physicians in a multispecialty group practice (USMD Physician Services, Dallas, TX) from October, 2014-September, 2015...
January 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28209174/mouse-genomic-screen-reveals-novel-host-regulator-of-metastasis
#7
Toni Celià-Terrassa, Yibin Kang
Tumor cells have to overcome challenges in the host tissue microenvironment to metastasize successfully to distant organs. In a recent Nature study, a genome-wide functional screen demonstrated that deficiency of the sphingosine-1-phoshate (S1P) transporter gene Spns2 in endothelium increased immune-mediated cell killing by T cells and natural killer (NK) cells, thereby suppressing metastatic colonization.
February 16, 2017: Genome Biology
https://www.readbyqxmd.com/read/28207302/characteristics-of-shiga-toxin-producing-escherichia-coli-o157-in-slaughtered-reindeer-from-northern-finland
#8
Claudio Zweifel, Lisa Fierz, Nicole Cernela, Sauli Laaksonen, Maria Fredriksson-Ahomaa, Roger Stephan
Fecal samples collected from 470 slaughtered reindeer 6 to 7 months of age were screened by real-time PCR (after enrichment) for Shiga toxin genes (stx) and then for Escherichia coli serogroup O157. Shiga toxin genes were found frequently (>30% of samples), and serogroup O157 was detected in 20% of the stx-positive samples. From these samples, a total of 25 E. coli O157:H(-) isolates (nonmotile but PCR positive for fliCH7) were obtained. Twenty-four of these E. coli O157:H(-) isolates did not ferment sorbitol and originated from one geographic area...
February 16, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28205108/water-assisted-colonoscopy
#9
REVIEW
Sergio Cadoni, Felix W Leung
The current review will attempt to describe the important lessons learned from published randomized controlled trials (RCT) comparing water immersion (WI) or water exchange (WE) techniques with gas insufflation colonoscopy. Air insufflation (AI) to distend the colon to permit visualization and passage through the lumen was developed for diagnostic colonoscopy. When screening colonoscopy was adopted, the same AI method was used. Interval cancers, diagnosed within 3 to 5 years after an index screening colonoscopy, appeared to be linked to low adenoma detection rate (ADR)...
February 15, 2017: Current Treatment Options in Gastroenterology
https://www.readbyqxmd.com/read/28203378/screening-for-vancomycin-resistant-enterococci-with-xpert%C3%A2-vana-vanb-diagnostic-accuracy-and-impact-on-infection-control-decision-making
#10
B J Holzknecht, D S Hansen, L Nielsen, A Kailow, J O Jarløv
Vancomycin-resistant enterococci (VRE) are increasingly important nosocomial pathogens and screening for colonization status is a mainstay in infection control. We implemented PCR-based screening during vanA-positive Enterococcus faecium outbreaks in four university hospitals in Copenhagen, Denmark. Xpert(®)vanA/vanB was performed directly on rectal swabs and the vanA PCR result was used to guide infection control measures. Concurrently, all samples were selectively cultured including an overnight enrichment step...
March 2017: New Microbes and New Infections
https://www.readbyqxmd.com/read/28199989/presence-of-cancer-associated-mutations-in-exhaled-breath-condensates-of-healthy-individuals-by-next-generation-sequencing
#11
Omar Youssef, Aija Knuuttila, Päivi Piirilä, Tom Böhling, Virinder Sarhadi, Sakari Knuutila
Exhaled breath condensate (EBC) is a non-invasive source that can be used for studying different genetic alterations occurring in lung tissue. However, the low yield of DNA available from EBC has hampered the more detailed mutation analysis by conventional methods. We applied the more sensitive amplicon-based next generation sequencing (NGS) to identify cancer related mutations in DNA isolated from EBC. In order to apply any method for the purpose of mutation screening in cancer patients, it is important to clarify the incidence of these mutations in healthy individuals...
February 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28196696/patients-hospitalized-abroad-as-importers-of-multiresistant-bacteria-a-cross-sectional-study
#12
Tamim Khawaja, Juha Kirveskari, Sara Johansson, Juuso Väisänen, Aurora Djupsjöbacka, Annika Nevalainen, Anu Kantele
OBJECTIVES: The pandemic spread of multidrug-resistant (MDR) bacteria poses a threat to healthcare worldwide, with highest prevalence in indigent regions of the (sub)tropics. As hospitalization constitutes a major risk factor for colonization, infection control management in low-prevalence countries urgently needs background data on patients hospitalized abroad. METHODS: We collected data on 1122 patients who, after hospitalization abroad, were treated at the Helsinki University Hospital between 2010 and 2013...
February 11, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28196423/fecal-microbiota-transplantation-is-there-a-role-in-the-eradication-of-carbapenem-resistant-klebsiella-pneumoniae-intestinal-carriage
#13
Ana Ponte, Rolando Pinho, Margarida Mota
The authors present the case of a 66-year-old woman with four hospitalizations due to recurrent Clostridium difficile infection (CDI) non responsive to vancomycin and fidaxomicin. Furthermore, intestinal colonization with carbapenem-resistant Klebsiella pneumoniae (CRKP) was identified after a positive stool culture in a screening routinely performed in our center in patients recently hospitalized.
February 15, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28195508/incidence-of-interval-cancers-in-faecal-immunochemical-test-colorectal-screening-programmes-in-italy
#14
Paolo Giorgi Rossi, Elisa Carretta, Lucia Mangone, Susanna Baracco, Diego Serraino, Manuel Zorzi
Objective In Italy, colorectal screening programmes using the faecal immunochemical test from ages 50 to 69 every two years have been in place since 2005. We aimed to measure the incidence of interval cancers in the two years after a negative faecal immunochemical test, and compare this with the pre-screening incidence of colorectal cancer. Methods Using data on colorectal cancers diagnosed in Italy from 2000 to 2008 collected by cancer registries in areas with active screening programmes, we identified cases that occurred within 24 months of negative screening tests...
January 1, 2017: Journal of Medical Screening
https://www.readbyqxmd.com/read/28194568/t1-colon-cancer-in-the-era-of-screening-risk-factors-and-treatment
#15
F Bianco, S De Franciscis, A Belli, A Falato, R Fusco, D F Altomare, A Amato, C R Asteria, A Avallone, G A Binda, L Boccia, P Buzzo, M Carvello, C Coco, P Delrio, P De Nardi, M Di Lena, A Failla, F La Torre, M La Torre, M Lemma, P Luffarelli, G Manca, I Maretto, F Marino, A Muratore, A Pascariello, S Pucciarelli, D Rega, V Ripetti, G Rizzo, A Serventi, A Spinelli, F Tatangelo, E D L Urso, G M Romano
BACKGROUND: The aim of this study was to identify risk factors for lymph node positivity in T1 colon cancer and to carry out a surgical quality assurance audit. METHODS: The sample consisted of consecutive patients treated for early-stage colon lesions in 15 colorectal referral centres between 2011 and 2014. The study investigated 38 factors grouped into four categories: demographic information, preoperative data, indications for surgery and post-operative data...
February 13, 2017: Techniques in Coloproctology
https://www.readbyqxmd.com/read/28193578/a-food-based-approach-that-targets-interleukin-6-a-key-regulator-of-chronic-intestinal-inflammation-and-colon-carcinogenesis
#16
Abigail Sido, Sridhar Radhakrishnan, Sung Woo Kim, Elisabeth Eriksson, Frank Shen, Qunhua Li, Vadiraja Bhat, Lavanya Reddivari, Jairam K P Vanamala
Studies have shown a causal link between high-calorie diet (HCD) and colon cancer. However, molecular mechanisms are not fully elucidated. To understand etiology of HCD-induced colon carcinogenesis, we screened 10 pathways linked to elevated colonic cell proliferation and chronic inflammation in an HCD-consuming human-relevant pig model. We observed elevated colonic mucosal interleukin-6 (IL-6) expression in HCD-consuming pigs compared to standard diet controls (SD, P=.04), and IL-6 strongly correlated with Ki-67 proliferative index and zone, early biomarkers of colon cancer risk (r=0...
January 28, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28188340/development-and-validation-of-a-new-dynamic-in-vitro-model-of-the-piglet-colon-pigutivm-application-to-the-study-of-probiotics
#17
Mickaël Alain Fleury, Olivier Le Goff, Sylvain Denis, Frédérique Chaucheyras-Durand, Eric Jouy, Isabelle Kempf, Monique Alric, Stéphanie Blanquet-Diot
For ethical, technical, regulatory, and cost reasons, in vitro methods are increasingly used as an alternative to in vivo experimentations. The aim of the present study was to validate, according to in vivo data in living animals, a new in vitro model of the piglet colon, the PigutIVM, under both control conditions and antibiotic disturbance by the widely used colistin. The PigutIVM reproduces the main biotic and abiotic parameters of the piglet colon: temperature, pH, retention time, supply of ileal effluents, complex, and metabolically active microbiota and self-maintained anaerobiosis...
February 10, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28186354/feasibility-of-cyfra-21-1-as-a-serum-biomarker-for-the-detection-of-colorectal-adenoma-and-advanced-colorectal-adenoma-in-people-over-the-age-of-45
#18
Do Hyoung Lim, Jai Hyuen Lee, Jong Wan Kim
BACKGROUND: Colon adenoma (CA) is a premalignant lesion of colorectal cancer, and its early removal is closely associated with more prolonged survival in the general population. In this study, we aimed to evaluate the relationship between diverse biologic markers and a newly diagnosed CA and to predict the clinical possibility of cytokeratin-19 soluble in serum fragment (CYFRA 21-1) as a screening tool in asymptomatic adults aged over 45 years. METHODS: Four hundred and seventy-nine patients with a histologically confirmed CA or benign colon polyp (BCP), 76 patients with only benign colorectal diseases and 223 negative controls with no CA or BCP detected on colonofibroscopy were investigated...
February 10, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28184026/identification-of-tmem208-and-pqlc2-as-reference-genes-for-normalizing-mrna-expression-in-colorectal-cancer-treated-with-aspirin
#19
Yuanyuan Zhu, Chao Yang, Mingjiao Weng, Yan Zhang, Chunhui Yang, Yinji Jin, Weiwei Yang, Yan He, Yiqi Wu, Yuhua Zhang, Guangyu Wang, Riju James RajkumarEzakiel Redpath, Lei Zhang, Xiaoming Jin, Ying Liu, Yuchun Sun, Ning Ning, Yu Qiao, Fengmin Zhang, Zhiwei Li, Tianzhen Wang, Yanqiao Zhang, Xiaobo Li
Numerous evidences indicate that aspirin usage causes a significant reduction in colorectal cancer. However, the molecular mechanisms about aspirin preventing colon cancer are largely unknown. Quantitative reverse transcription polymerase chain reaction (qRT-PCR) is a most frequently used method to identify the target molecules regulated by certain compound. However, this method needs stable internal reference genes to analyze the expression change of the targets. In this study, the transcriptional stabilities of several traditional reference genes were evaluated in colon cancer cells treated with aspirin, and also, the suitable internal reference genes were screened by using a microarray and were further identified by using the geNorm and NormFinder softwares, and then were validated in more cell lines and xenografts...
February 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28182647/performance-analysis-of-a-machine-learning-flagging-system-used-to-identify-a-group-of-individuals-at-a-high-risk-for-colorectal-cancer
#20
Yaron Kinar, Pinchas Akiva, Eran Choman, Revital Kariv, Varda Shalev, Bernard Levin, Steven A Narod, Ran Goshen
Individuals with colorectal cancer (CRC) have a tendency to intestinal bleeding which may result in mild to severe iron deficiency anemia, but for many colon cancer patients hematological abnormalities are subtle. The fecal occult blood test (FOBT) is used as a pre-screening test whereby those with a positive FOBT are referred to colonscopy. We sought to determine if information contained in the complete blood count (CBC) report coud be processed automatically and used to predict the presence of occult colorectal cancer (CRC) in the setting of a large health services plan...
2017: PloS One
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