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https://www.readbyqxmd.com/read/29352574/mismatch-repair-status-as-a-beneficial-predictor-of-fluorouracil-based-adjuvant-chemotherapy-for-pancreatic-cancer
#1
Dingkong Liang, Si Shi, Chen Liang, Qingcai Meng, Bo Zhang, Quanxing Ni, Jin Xu, Xianjun Yu
BACKGROUND: Prior studies have indicated that patients with colorectal cancer with deficient mismatch repair have particular clinicopathologic features that distinguish them from patients with tumors with proficient mismatch repair. However, the effect of the mismatch repair status on outcomes after adjuvant chemotherapy for pancreatic cancer is still unknown. METHODS: Pancreatic cancer patients who underwent R0 resection between January 2013 and December 2015 at Fudan University Shanghai Cancer Center were included in this study...
January 15, 2018: Surgery
https://www.readbyqxmd.com/read/29352517/mirna-binding-site-variants-of-type-2-diabetes-candidate-loci-predispose-to-gestational-diabetes-mellitus-in-chinese-han-women
#2
Xiaojing Wang, Wei Li, Liangkun Ma, Fan Ping, Juntao Liu, Xueyan Wu, Jiangfeng Mao, Xi Wang, Min Nie
AIMS/INTRODUCTION: Emerging evidence suggested that the genetic background of GDM was analogous to T2DM. In contrast to T2DM, the genetic studies for GDM were limited. Accordingly, the aim of this study was to extensively explore the influence of miR-binding-SNPs in T2DM candidate loci on GDM susceptibility in Chinese. METERIALS AND METHODS: A total of 839 GDM and 900 controls were enrolled. Six miR-binding-SNPs were selected from 30 T2DM susceptibility loci and genotyped using TaqMan allelic discrimination assays...
January 20, 2018: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/29352337/impact-of-hepatitis-b-carrier-status-on-the-outcomes-of-surgical-treatment-of-colorectal-liver-metastases
#3
Kin Pan Au, Kenneth Siu Ho Chok, Albert Chi Yan Chan, Wing Chiu Dai, Tan To Cheung, Chung Mau Lo
BACKGROUND: Chronic hepatitis B virus (HBV) infection is associated with a lower incidence of colorectal liver metastases. We explored the impact of HBV carrier status on outcomes of surgical treatment of colorectal liver metastases. METHODS: A retrospective analysis was conducted for consecutive patients undergoing liver resection for colorectal liver metastases from 2000 to 2016. HBV carriers were matched with controls by propensity scoring. RESULTS: 304 patients with known HBV carrier status who underwent resection of colorectal liver metastases were studied...
January 19, 2018: World Journal of Surgery
https://www.readbyqxmd.com/read/29352223/zeb1-confers-chemotherapeutic-resistance-to-breast-cancer-by-activating-atm
#4
Xiang Zhang, Zhen Zhang, Qing Zhang, Quansheng Zhang, Peiqing Sun, Rong Xiang, Guosheng Ren, Shuang Yang
Although zinc finger E-box binding homeobox 1 (ZEB1) has been identified as a key factor in the regulation of breast cancer differentiation and metastasis, its potential role in modulating tumor chemoresistance has not been fully understood. Here, through the study of specimens from a large cohort of human breast cancer subjects, we showed that patients with tumors that expressed high levels of ZEB1 responded poorly to chemotherapy. Moreover, ZEB1 expression was positively correlated with expression of B-cell lymphoma-extra large (Bcl-xL) and cyclin D1, which are key components of tumor chemoresistant mechanisms...
January 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29352176/renal-scattered-tubular-like-cells-confer-protective-effects-in-the-stenotic-murine-kidney-mediated-by-release-of-extracellular-vesicles
#5
Xiangyu Zou, Soon Hyo Kwon, Kai Jiang, Christopher M Ferguson, Amrutesh S Puranik, Xiangyang Zhu, Lilach O Lerman
To test the hypothesis that intrinsic renal scattered tubular cells (STC-like cells) contribute to repairing injured tubular epithelial cells (TEC) by releasing extracellular vesicle (EV). EV released from primary cultured pig STC-like cells were confirmed by electron microscopy. Antimycin-A (AMA)-induced injured proximal TEC (PK1 cells) were co-cultured with STC-like cells, STC-like cells-derived EV, or EV-free conditioned-medium for 3 days. Cellular injury, oxidative stress and mitochondrial function were assessed...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352124/hbv-infection-potentiates-resistance-to-s-phase-arrest-inducing-chemotherapeutics-by-inhibiting-chk2-pathway-in-diffuse-large-b-cell-lymphoma
#6
Xinying Zhao, Xudong Guo, Libo Xing, Wenqin Yue, Haisen Yin, Miaoxia He, Jianmin Wang, Jianmin Yang, Jie Chen
A considerable number of diffuse large B-cell lymphoma (DLBCL) patients are infected with hepatitis B virus (HBV), which is correlated with their poor outcomes. However, the role of HBV infection in DLBCL treatment failure remains poorly understood. Here, our data demonstrated that HBV infection was closely associated with poorer clinical prognosis independent of its hepatic dysfunction in germinal center B-cell type (GCB type) DLBCL patients. Interestingly, we found that DLBCL cells expressing hepatitis B virus X protein (HBX) did not exhibit enhanced cell growth but did show reduced sensitivity to methotrexate (MTX) and cytarabine (Ara-C), which induced S-phase arrest...
January 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29352114/binding-of-nufip2-to-roquin-promotes-recognition-and-regulation-of-icos-mrna
#7
Nina Rehage, Elena Davydova, Christine Conrad, Gesine Behrens, Andreas Maiser, Jenny E Stehklein, Sven Brenner, Juliane Klein, Aicha Jeridi, Anne Hoffmann, Eunhae Lee, Umberto Dianzani, Rob Willemsen, Regina Feederle, Kristin Reiche, Jörg Hackermüller, Heinrich Leonhardt, Sonia Sharma, Dierk Niessing, Vigo Heissmeyer
The ubiquitously expressed RNA-binding proteins Roquin-1 and Roquin-2 are essential for appropriate immune cell function and postnatal survival of mice. Roquin proteins repress target mRNAs by recognizing secondary structures in their 3'-UTRs and by inducing mRNA decay. However, it is unknown if other cellular proteins contribute to target control. To identify cofactors of Roquin, we used RNA interference to screen ~1500 genes involved in RNA-binding or mRNA degradation, and identified NUFIP2 as a cofactor of Roquin-induced mRNA decay...
January 19, 2018: Nature Communications
https://www.readbyqxmd.com/read/29352079/identification-and-validation-of-a-new-source-of-low-grain-cadmium-accumulation-in-durum-wheat
#8
Atena Oladzad Abbasabadi, Ajay Kumar, Seyed Pirseyedi, Evan Salsman, Marina Dobrydina, Roshan Sharma Poudel, Wesam A AbuHammad, Shiaoman Chao, Justin D Faris, Elias M Elias
Cadmium (Cd) is a heavy metal that has no known biological function and is toxic for many living organisms. The maximum level of Cd concentration allowed in the international market for wheat grain is 0.2 mg kg-1. Because phenotyping for Cd uptake is expensive and time consuming, molecular markers associated with genes conferring low Cd uptake would expedite selection and lead to the development of durum cultivars with reduced Cd concentrations. Here, we identified single nucleotide polymorphisms (SNPs) associated with a novel low Cd uptake locus in the durum experimental line D041735, which has hexaploid common wheat in its pedigree...
January 19, 2018: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/29352038/microenvironment-induced-cd44v6-promotes-early-disease-progression-in-chronic-lymphocytic-leukemia
#9
Julia C Gutjahr, Eva Szenes, Lisa Tschech, Daniela Asslaber, Michaela Schlederer, Simone Roos, Xiaobing Yu, Tamara Girbl, Christina Sternberg, Alexander Egle, Fritz Aberger, Ronen Alon, Lukas Kenner, Richard Greil, Veronique Orian-Rousseau, Tanja N Hartmann
Chronic lymphocytic leukemia (CLL) outgrowth depends on signals from the microenvironment. We have previously found that in vitro reconstitution of this microenvironment induces specific variant isoforms of the adhesion molecule CD44, which confer human CLL with high affinity to hyaluronan (HA). Here, we determined the in vivo contribution of standard CD44 and its variants to leukemic B-cell homing and proliferation in Tcl1 transgenic mice with a B-cell-specific CD44 deficiency. In these mice, leukemia onset was delayed and leukemic infiltration of spleen, liver, and lungs, but not of bone marrow was decreased...
January 19, 2018: Blood
https://www.readbyqxmd.com/read/29352002/intestinal-epithelial-cell-derived-lkb1-suppresses-colitogenic-microbiota
#10
Xia'nan Liu, Jinfeng Lu, Zhenshan Liu, Junjie Zhao, Hongxiang Sun, Ningbo Wu, Hongzhi Liu, Weiwei Liu, Zhuqin Hu, Guangxun Meng, Lei Shen, Aaron W Miller, Bing Su, Xiaoxia Li, Zizhen Kang
Dysregulation of the immune barrier function of the intestinal epithelium can often result in dysbiosis. In this study we report a novel role of intestinal epithelial cell (IEC) -derived liver kinase B1 (LKB1) in suppressing colitogenic microbiota. IEC-specific deletion of LKB1 (LKB1ΔIEC) resulted in an increased susceptibility to dextran sodium sulfate (DSS)-induced colitis and a definitive shift in the composition of the microbial population in the mouse intestine. Importantly, transfer of the microbiota from LKB1ΔIEC mice was sufficient to confer increased susceptibility to DSS-induced colitis in wild-type recipient mice...
January 19, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29351892/identification-and-functional-analysis-of-cassava-della-proteins-in-plant-disease-resistance-against-cassava-bacterial-blight
#11
Xiaolin Li, Wen Liu, Bing Li, Guoyin Liu, Yunxie Wei, Chaozu He, Haitao Shi
Gibberellin (GA) is an essential plant hormone in plant growth and development as well as various stress responses. DELLA proteins are important repressors of GA signal pathway. GA and DELLA have been extensively investigated in several model plants. However, the in vivo roles of GA and DELLA in cassava, one of the most important crops and energy crops in the tropical area, are unknown. In this study, systematic genome-wide analysis identified 4 MeDELLAs in cassava, as evidenced by the evolutionary tree, gene structures and motifs analyses...
December 26, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29351820/restless-legs-syndrome-in-iranian-people-with-type-2-diabetes-mellitus-the-role-in-quality-of-life-and-quality-of-sleep
#12
Leila Modarresnia, Fatemeh Golgiri, Nahid Hashemi Madani, Zahra Emami, Kiarash Tanha
STUDY OBJECTIVES: To investigate the prevalence of restless legs syndrome (RLS) in patients with type 2 diabetes mellitus (T2DM) and explore its role in quality of life (QoL) and quality of sleep of these patients. METHODS: This is a cross-sectional study performed on 210 Iranian people with T2DM. The diagnosis of RLS was established based on the essential diagnostic criteria for RLS recommended by the National Institutes of Health. Sleep quality and QoL were assessed in all participants using Pittsburgh Sleep Quality Index and EuroQol five-dimension questionnaire, respectively...
January 16, 2018: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/29351812/a-hybrid-protein-containing-msp1a-repeats-and-omp7-omp8-and-omp9-epitopes-protect-immunized-balb-c-mice-against-anaplasmosis
#13
Alex Sander R Cangussu, Luis André M Mariúba, Pritesh Lalwani, Keila Dayane E S Pereira, Spartaco Astolphi-Filho, Patricia P Orlandi, Sabrina Epiphanio, Kelvison F Viana, Mucio Flavio B Ribeiro, Hidelberto M Silva, Claudio R F Marinho, Paulo A Nogueira
Anaplasma marginale (A. marginale) has a remarkable impact on livestock production, and an effective vaccine is not currently available due to the inexistence of a small animal model. Recently, BALB/c mice were successfully infected with A. marginale, resulting in an acute and persistent anaplasmosis infection. Here, we designed a hybrid protein containing repeats of polypeptide 1a from major surface protein-1 complex (MSP1a) repeats and common epitopes of outer membrane proteins (OMPs) OMP7, OMP8 and OMP9 expressed in Escherichia coli...
January 19, 2018: Veterinary Research
https://www.readbyqxmd.com/read/29351495/implementing-prehospital-evidence-based-guidelines-a-systematic-literature-review
#14
Jennifer N Fishe, Remle P Crowe, Rebecca E Cash, Nikiah G Nudell, Christian Martin-Gill, Christopher T Richards
OBJECTIVE: As prehospital research advances, more evidence-based guidelines (EBGs) are implemented into emergency medical services (EMS) practice. However, incomplete or suboptimal prehospital EBG implementation may hinder improvement in patient outcomes. To inform future efforts, this study's objective was to review existing evidence pertaining to prehospital EBG implementation methods. METHODS: This study was a systematic literature review and evaluation following the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) methodology...
January 19, 2018: Prehospital Emergency Care
https://www.readbyqxmd.com/read/29351172/a-systematic-review-and-meta-analysis-of-genetic-risk-factors-for-neuropathic-pain
#15
Abirami Veluchamy, Harry L Hébert, Weihua Meng, Colin N A Palmer, Blair H Smith
Neuropathic pain (NP) is an increasingly common chronic pain state and a major health burden, affecting approximately 7-10% of the general population. Emerging evidence suggests that genetic factors could partially explain individual susceptibility to NP and the estimated heritability in twins is 37%. The aim of this study was to systematically review and summarize the studies in humans that have investigated the influence of genetic factors associated with NP. We conducted a comprehensive literature search and performed meta-analyses of all the potential genetic variants associated with NP...
January 18, 2018: Pain
https://www.readbyqxmd.com/read/29351143/nutrition-in-the-icu-new-trends-versus-old-fashioned-standard-enteral-feeding
#16
Kristine W A C Koekkoek, Arthur R H van Zanten
PURPOSE OF REVIEW: The narrative review aims to summarize the relevant studies from the last 2 years and provide contextual information to understand findings. RECENT FINDINGS: Recent ICU studies have provided insight in the pathophysiology and time course of catabolism, anabolic resistance, and metabolic and endocrine derangements interacting with the provision of calories and proteins.Early provision of high protein intake and caloric overfeeding may confer harm...
January 18, 2018: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/29351019/keystone-individuals-alter-ecological-and-evolutionary-consumer-resource-dynamics
#17
Denon Start
Intraspecific variation is central to our understanding of evolution and ecology, but these fields generally consider either the mean trait value or its variance. Alternatively, the keystone individual concept from behavioral ecology posits that a single individual with an extreme phenotype can have disproportionate and irreplaceable effects on group dynamics. Here, I generalize this concept to include nonbehavioral traits and broader ecological and evolutionary dynamics. I test for the effects of individuals with extreme phenotypes on the ecology and evolution of a gall-forming fly and its natural enemies that select for opposite gall sizes...
February 2018: American Naturalist
https://www.readbyqxmd.com/read/29350831/randomized-trial-on-extended-versus-modified-right-lobe-grafts-in-live-donor-liver-transplantation
#18
Christi Titus Varghese, Viju Kumar Bharathan, Unnikrishnan Gopalakrishnan, Dinesh Balakrishnan, Ramachandran N Menon, Othiyil Vayoth Sudheer, Puneet Dhar, Sudhindran Surendran
Despite advances in the practice of live donor liver transplantation (LDLT), the optimum surgical approach with respect to the middle hepatic vein (MHV) in right lobe LDLT remains undefined. We designed a randomized trial to compare the early postoperative outcomes in recipients and donors between extended right lobe grafts (ERG: transection plane was maintained to the left of MHV, and division of MHV performed beyond the segment VIII vein) and modified right lobe grafts (MRG: transection plane was maintained to the right of MHV, the segment V and VIII drainage was reconstructed using a conduit of recipient portal vein)...
January 19, 2018: Liver Transplantation
https://www.readbyqxmd.com/read/29350812/a-unified-framework-of-plant-adaptive-strategies-to-drought-crossing-scales-and-disciplines
#19
Florence Volaire
Plant adaptation to drought has been extensively studied at many scales from ecology to molecular biology across a large range of model species. However, the conceptual frameworks underpinning the definition of plant strategies, and the terminology used across the different disciplines and scales are not analogous. 'Drought resistance' for instance refers to plant responses as different as the maintenance of growth and productivity in crops, to the survival and recovery in perennial woody or grassland species...
January 19, 2018: Global Change Biology
https://www.readbyqxmd.com/read/29350568/abp-980-promising-trastuzumab-biosimilar-for-her2-positive-breast-cancer
#20
Elisavet Paplomata, Rita Nahta
Approval of the HER2-targeted antibody trastuzumab dramatically improved outcomes for patients with HER2-positive breast cancer. Multiple trastuzumab biosimilars, including ABP 980, are in clinical development. Biosimilars are not identical to the reference biologic, but exhibit equivalence and safety in analytical and clinical studies. Areas covered: A brief introduction to trastuzumab, overview of trastuzumab biosimilars, and detailed review of ABP 980 preclinical and clinical studies are included. We searched PubMed and 2016-2017 ASCO and ESMO conference proceedings for "ABP 980" or "trastuzumab biosimilar"...
January 19, 2018: Expert Opinion on Biological Therapy
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