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Jie Tang, Jiaqian Fei, Chunxia Gu, Weixia Liu, Minwei Li, Cheng Zhou
BACKGROUND/AIMS: B and T lymphocyte attenuator (BTLA) is an immune inhibitory receptor involved in the pathogenesis of chronic viral infections. Little is known about the effects of BTLA gene polymorphisms on chronic hepatitis B virus (HBV) infections. In this study, we investigated whether the polymorphisms of BTLA are associated with the progression of chronic HBV infection. METHODS: A total of 382 chronic HBV carriers and 170 healthy individuals in the same region were recruited for this study...
March 16, 2018: Cellular Physiology and Biochemistry
Eric Seiti Yamanaka, Luis A Tortajada-Genaro, Nuria Pastor, Ángel Maquieira
The genotyping of a single-nucleotide polymorphism (SNP) is addressed through methods based on loop-mediated isothermal amplification (LAMP) combined with user-friendly optical read-outs to cover the current demand for point-of-care DNA biomarker detection. The modification of primer design and reaction composition improved the assay selectivity yielding allele-specific results and reducing false-positive frequency. Furthermore, the reduced cost, ease of use and effectiveness of colorimetric detection (solution and hybridisation chip formats) were availed for the image capture by a smartphone, reching high sensitivity...
March 8, 2018: Biosensors & Bioelectronics
Bin Guo, Baolin Wu
We propose statistical methods to detect novel genetic variants using only genome-wide association studies (GWAS) summary data without access to raw genotype and phenotype data. With more and more summary data being posted for public access in the post GWAS era, the proposed methods are practically very useful to identify additional interesting genetic variants and shed lights on the underlying disease mechanism. We illustrate the utility of our proposed methods with application to GWAS meta-analysis results of fasting glucose from the international MAGIC consortium...
March 1, 2018: Computational Biology and Chemistry
Xingyu Zhang, Di Chen, Guifeng Xu, Weichun Huang, Xing Wang
Infection by carbapenem-resistant Klebsiella pneumoniae (CR-KP) is a public health challenge worldwide, in particular among children, which was associated with high morbidity and mortality rates. There was limited data in pediatric populations, thus this study aimed to investigate molecular epidemiology and drug resistant mechanism of CR-KP strains from pediatric patients in Shanghai, China. A total of 41 clinical CR-KP isolates from sputum, urine, blood or drainage fluid were collected between July 2014 and May 2015 in Shanghai Children's Medical Center...
2018: PloS One
Amber Hilliard, Dara Leong, Amy O'Callaghan, Eamonn P Culligan, Ciara A Morgan, Niall DeLappe, Colin Hill, Kieran Jordan, Martin Cormican, Cormac G M Gahan
Listeria monocytogenes is a major human foodborne pathogen that is prevalent in the natural environment and has a high case fatality rate. Whole genome sequencing (WGS) analysis has emerged as a valuable methodology for the classification of L. monocytogenes isolates and the identification of virulence islands that may influence infectivity. In this study, WGS was used to provide an insight into 25 L. monocytogenes isolates from cases of clinical infection in Ireland between 2013 and 2015. Clinical strains were either lineage I (14 isolates) or lineage II (11 isolates), with 12 clonal complexes (CC) represented, of which CC1 (6) and CC101 (4) were the most common...
March 20, 2018: Genes
Beatrice Emmanouil, Katherine Browne, Dorothy Halliday, Allyson Parry
PURPOSE: Patients with Neurofibromatosis type 2 often experience debilitating neuro-otological problems which affect their mobility and balance. This study examined the efficacy of a personalised program of vestibular rehabilitation for patients with Neurofibromatosis type 2. MATERIALS AND METHODS: An observational cohort study analysing routinely collected data for 21 patients in a highly specialised Neurofibromatosis type 2 service. Vestibular rehabilitation comprised an initial one-hour assessment followed by a patient-specific exercise program reviewed in person and by email consultations...
March 20, 2018: Disability and Rehabilitation
Ming Li Wang, Charles Y Chen, Brandon Tonnis, David Pinnow, Jerry Davis, Y Q An, Phat Dang
The level of oleic acid in peanut seed is one of the most important factors in determining seed quality and is controlled by two pairs of homeologous genes (FAD2A and FAD2B). The genotypes of eight F8 breeding lines were determined as AABB, aaBB, AAbb, and aabb by real-time PCR and sequencing. Fresh seeds were collected from five seed developmental stages and, after drying, were used for chemical analysis. Our results showed (1) as seeds developed, seed weight, oil content, and oleic acid level significantly increased, whereas four other fatty acid levels decreased, but protein content and another four fatty acid levels did not significantly change...
March 20, 2018: Journal of Agricultural and Food Chemistry
Ozlem Kurnaz-Gomleksiz, Ozlem Kucukhuseyin, Elif Ozkok, Zehra Bugra, Oguz Ozturk, Hulya Yilmaz-Aydogan
BACKGROUND: The OLR1 gene has been identified as a candidate gene for coronary artery disease (CAD). Six single-nucleotide polymorphisms (SNPs) of the OLR1 gene located within intron 4 (IVS4-27G>C, IVS4-73C>T, IVS4-14A>G), intron 5 (IVS5-70A>G, IVS5-27G>T) and 3'UTR (188C>T) comprise a linkage disequilibrium (LD) block, which is strongly associated with the elevated risk of CAD. OBJECTIVES: We aimed to investigate the effects of the OLR1 IVS4-14A>G and -73C>T SNPs on metabolic parameters in Turkish CAD patients, and the linkage between these 2 genetic variants...
March 20, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
Yuli Wei, Jiasong Fang, Yunping Xu, Weiqiang Zhao, Junwei Cao
A novel heterotrophic, Gram-stain-positive, facultatively anaerobic and rod-shaped bacterium, designated strain NBT06-6T , was isolated from the deep seawater in the New Britain Trench and characterized phylogenetically and phenotypically. Optimal bacterial growth occurred at 35 °C (range 22-41 °C), at pH 6 (4-8) and with 4 % (w/v) NaCl (0-10 %). The strain grew at hydrostatic pressures of 0.1-100 MPa (optimum, 0.1 MPa) at 35 °C. Phylogenetic analysis of the 16S rRNA gene sequences indicated that strain NBT06-6T belonged to the genus Corynebacterium, with the highest sequence similarity (97...
March 20, 2018: International Journal of Systematic and Evolutionary Microbiology
Junjun Zhang, Haoyuan Shen, Mengjun Wang, Sheng Nie, Xizheng Wu, Yi Huang, Xiang Gao
C-X-C motif chemokine ligand 12 (CXCL12) may play an important role in the development of intracranial aneurysm (IA). The goal of this study was to explore the association between CXCL12 rs1746048 genotypes and circulating lipid concentrations along with the risk of IA. A total of 256 IA patients and 361 healthy volunteers were included in the case-control study. The genotypes of CXCL12 rs1746048 were detected by Melting Temperature shift (Tm-shift) polymerase chain reaction (PCR). Significant higher levels were seen in TC (padjusted < 0...
March 19, 2018: Current Neurovascular Research
Xin Dai, Gayan Bowatte, Adrian J Lowe, Melanie C Matheson, Lyle C Gurrin, John A Burgess, Shyamali C Dharmage, Caroline J Lodge
PURPOSE OF REVIEW: Glutathione S-transferase (GST) genes are involved in oxidative stress management and may modify the impact of indoor air pollution. We aimed to assess the influence of GST genes on the relationship between indoor air pollution and allergy/lung function. RECENT FINDINGS: Our systematic review identified 22 eligible studies, with 15 supporting a gene-environment interaction. Carriers of GSTM1/T1 null and GSTP1 val genotypes were more susceptible to indoor air pollution exposures, having a higher risk of asthma and lung function deficits...
March 20, 2018: Current Allergy and Asthma Reports
Tanja Čugura, Jakob Boh, Tomaž Zupanc, Peter Pregelj, Alja Videtič Paska
Dysregulations in serotonin neurotransmission can be a strong contributing factor in suicide and impulsive-aggressive personality traits. Victims of suicide form a heterogeneous group in terms of planning, lethality and number of used methods. In this study, we tested single nucleotide polymorphisms (SNPs) of the monoamine oxidase (MAO) A and B genes on the Slovenian population, which has one of the highest suicide rates in the world. Genotyping was performed on 77 victims of complex suicide, 406 victims of simple suicide and 289 controls...
March 20, 2018: International Journal of Legal Medicine
Qianjun Li, Gang Ma, Huimin Guo, Suhua Sun, Ying Xu, Bingjian Wang
BACKGROUND AND AIMS: Down-regulation of the growth arrest specific transcript 5 (GAS5) (long non-coding RNA) is associated with cell proliferation of gastric cancer (GC) and a poor prognosis. We aimed to investigate whether the variant rs145204276 of GAS5 is associated with the prognosis of GC in the Chinese population, and to unveil the regulatory mechanism underlying the GAS5 expression in GC tissues. METHOD: 1,253 GC patients and 1,354 healthy controls were included...
March 2018: Journal of Gastrointestinal and Liver Diseases: JGLD
Daisuke Kobayashi, Katsunori Murota, Ryosuke Fujita, Kentaro Itokawa, Akira Kotaki, Meng Ling Moi, Hiroko Ejiri, Yoshihide Maekawa, Kohei Ogawa, Yoshio Tsuda, Toshinori Sasaki, Mutsuo Kobayashi, Tomohiko Takasaki, Haruhiko Isawa, Kyoko Sawabe
In 2014 in Japan, 162 autochthonous dengue cases were reported for the first time in nearly 70 years. Here, we report the results of the detection and isolation of dengue virus (DENV) from mosquitoes collected in Tokyo Metropolis in 2014 and 2015. The phylogenetic relationship among DENV isolates from mosquitoes and from patients based on both the entire envelope gene and whole coding sequences was evaluated. Herein, 2,298 female and 956 male Aedes albopictus mosquitoes were collected at six suspected locations of DENV infection in Tokyo Metropolis from August to October in 2014 and grouped into 124 and 35 pools, respectively, for viral genome detection and DENV isolation...
March 19, 2018: American Journal of Tropical Medicine and Hygiene
C Kaewpila, K Sommart, M Mitsumori
The mitigation of enteric methane emission in beef cattle production is important for reducing feed energy loss and increasing environmental sustainability. The main objective of this study was to evaluate the effect of different oilseeds included in fermented total mixed rations (whole soyabean seed (SBS, control), whole kapok seed (KPS) and cracked oil palm fruit (OPF)) on feed intake, digestibility, rumen microbial populations, energy partition and methane emissions in different cattle genotypes (Charolais crossbred v...
March 20, 2018: Animal: An International Journal of Animal Bioscience
Chayakrit Krittanawong, Marrick L Kukin
Heart failure with preserved ejection fraction (HFpEF), a complex and debilitating syndrome, is commonly seen in elderly populations. Exacerbation of HFpEF is among the most common reasons for hospital admission in the USA. The high rate of morbidity and mortality from this condition underscores the fact that HFpEF is heterogeneous, complex, and poorly characterized. Randomized, controlled trials have been very successful at identifying treatments for HF with reduced ejection fraction (HFrEF), but effective treatment options for HFpEF are lacking...
March 20, 2018: Current Treatment Options in Cardiovascular Medicine
Zusen Ye, Hao Zhang, Lingli Sun, Huan Cai, Yonggang Hao, Zongliang Xu, Zhizhong Zhang, Xinfeng Liu
Elevated C-reactive protein (CRP) levels increase the risk of poor functional disability in patients with ischemic stroke (IS). This study aimed to investigate the association between CRP gene polymorphisms and 3-month functional disability of large artery atherosclerotic (LAA) stroke in Han Chinese. Patients with first-ever LAA IS were prospectively enrolled in Nanjing Stroke Registry Program between August 2013 and October 2015. Five single-nucleotide polymorphisms (SNPs) (rs876537, rs2794520, rs3093059, rs7553007 and rs11265260) in CRP gene related to CRP levels in Asian by genome-wide association study were genotyped...
March 19, 2018: Neuromolecular Medicine
Moisés Uriarte-Pinto, Herminia Navarro-Aznarez, Natalia De La Llama-Celis, Piedad Arazo-Garcés, Ana María Martínez-Sapiña, María Reyes Abad-Sazatornil
Background HIV-HCV coinfection produces high morbi-mortality. Direct-acting antivirals (DAAs) have shown high efficacy, although special attention should be paid to the risk of drug interactions. However, due to the lack of representativeness of coinfected patients in clinical trials, it is important to know real-world results. Objective To evaluate DAA treatment effectiveness in coinfected patients. We also analyse safety profile of DAA treatment and drug interactions between HCV and HIV therapy. Setting Descriptive study carried in a tertiary hospital of Spain Method HIV-HCV coinfected patients treated with DAAs between November 2014 and June 2016 were included...
March 20, 2018: International Journal of Clinical Pharmacy
Irena Urbanovska, Magdalena Houdova Megova, Zachary Dwight, Ondrej Kalita, Magdalena Uvirova, Jarmila Simova, Lucie Tuckova, Petr Buzrla, Tomas Palecek, Marian Hajduch, Jana Dvorackova, Jiri Drabek
Mutations in IDH1/2 genes are a marker of good prognosis for glioma patients, associated with low grade gliomas and secondary glioblastomas. Immunohistochemistry and Sanger sequencing are current standards for IDH1/2 genotyping while many other methods exist. The aim of this study was to validate Competitive amplification of differentially melting amplicons (CADMA) PCR for IDH genotyping by comparison with SNaPshot assay and two immunohistochemical methods. In our study, 87 glioma patients (46 from Olomouc and 41 from Ostrava) were analyzed...
March 19, 2018: Pathology Oncology Research: POR
Mukhit B Orynbayev, Sasan Fereidouni, Abylay R Sansyzbai, Bakhytkul A Seidakhmetova, Vitaliy M Strochkov, Askar M Nametov, Sandugash O Sadikaliyeva, Asel Nurgazieva, Kaissar K Tabynov, Nurkuysa M Rametov, Kulyaisan T Sultankulova
In order to improve current understanding of the molecular epidemiology of avian avulavirus 1 (AAvV-1, formerly avian paramyxovirus 1) in wild birds in Kazakhstan, 860 cloacal swab samples were evaluated. Samples were collected from 37 families of wild birds in nine different regions in the years 2011 and 2014. Overall, 54 positive samples (4.2%) were detected from 17 different families of wild birds, and 16 AAvV-1 isolates were characterized. Three of the isolates contained the fusion protein cleavage site motif RRQKR, and 13 contained KRQKR, which is typical for pathogenic strains of AAvV-1...
March 20, 2018: Archives of Virology
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