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Polina V Popova, Alexandra A Klyushina, Lyudmila B Vasilyeva, Alexandra S Tkachuk, Yana A Bolotko, Andrey S Gerasimov, Evgenii A Pustozerov, Ekaterina N Kravchuk, Alexander Predeus, Anna A Kostareva, Elena N Grineva
We hypothesized that the association of certain lifestyle parameters with gestational diabetes mellitus (GDM) risk would depend on susceptibility loci. In total, 278 Russian women with GDM and 179 controls completed questionnaires about lifestyle habits (food consumption, physical activity and smoking). GDM was diagnosed according to the criteria of the International Association of Diabetes and Pregnancy Study Groups. Maternal blood was sampled for genotyping single-nucleotide polymorphisms (SNPs) in MTNR1B (rs10830963 and rs1387153), GCK (rs1799884), KCNJ11 (rs5219), IGF2BP2 (rs4402960), TCF7L2 (rs7903146 and rs12255372), CDKAL1 (rs7754840), IRS1 (rs1801278) and FTO (rs9939609)...
December 19, 2017: Oncotarget
Charlotte Schröder, Fabian Czerwensky, Stefan Leucht, Werner Steimer
INTRODUCTION: Weight gain is a limiting and frequent adverse effect of second-generation antipsychotic therapy. Identifying genetic risk factors would significantly improve pharmacotherapy. METHODS: We focused on rs7185735 and rs9939609, 2 common single nucleotide polymorphisms of the fat mass and obesity-associated (FTO) gene reported to be associated with obesity. Three-hundred fifty Caucasian inpatients were included in a naturalistic study. RESULTS: After 4 weeks of treatment, we did not observe any significant association of polymorphisms with weight change in the whole study population (p>0...
January 15, 2018: Pharmacopsychiatry
Suryakant Mishra, Priyanka Yogi, P R Sagdeo, Rajesh Kumar
Glucose sensing properties of mesoporous well-aligned, dense nickel oxide (NiO) nanostructures (NSs) in nanopetals (NPs) shape grown hydrothermally on the FTO-coated glass substrate has been demonstrated. The structural study based investigations of NiO-NPs has been carried out by X-ray diffraction (XRD), electron and atomic force microscopies, energy dispersive X-ray (EDX), and X-ray photospectroscopy (XPS). Brunauer-Emmett-Teller (BET) measurements, employed for surface analysis, suggest NiO's suitability for surface activity based glucose sensing applications...
January 11, 2018: Nanoscale Research Letters
Marica Franzago, Federica Fraticelli, Daniela Marchetti, Claudio Celentano, Marco Liberati, Liborio Stuppia, Ester Vitacolonna
AIM: Gestational diabetes mellitus (GDM) is the most frequent metabolic disorder in pregnancy and it can be considered a silent risk associated to T2DM and CVD later in life. The aim of this study was to investigate the association of clinical parameters with nine single nucleotide polymorphisms (SNPs) involved with nutrients and metabolism in women with or without GDM in order to identify potential routine clinical markers for early prevention. METHODS: Nine gene variants associated with nutrients and metabolism, namely PPARG2 rs1801282 (C>G); PPARGC1A rs8192678 (C>T); TCF7L2 rs7903146 (C>T); LDLR rs2228671 (C>T); MTHFR rs1801133 (C>T); APOA5 rs662799 (T>C); GCKR rs1260326 (C>T); FTO rs9939609 (T>A); MC4R rs17782313 (T>C) were genotyped in 104 GDM cases and 124 controls using High Resolution Melting (HRM) analysis...
January 8, 2018: Diabetes Research and Clinical Practice
Abrar Ahmad, Ashfaque A Memon, Jan Sundquist, Peter J Svensson, Bengt Zöller, Kristina Sundquist
Multiple genetic variations have been identified in FTO (fat mass and obesity-associated) gene. Among them, FTO rs9939609 polymorphism is shown to be associated with the risk of primary venous thromboembolism (VTE). However, its role in recurrent VTE is not known. The aim of our study was to investigate the association between FTO rs9939609 polymorphism and the risk of VTE recurrence in a prospective follow-up study in both male and female patients. FTO rs9939609 polymorphism (T/A) was analyzed in the Malmö thrombophilia study (MATS, followed for ~10 years) by using TaqMan PCR...
January 8, 2018: Gene
Flavien Sciortino, Gaulthier Rydzek, Fabien Grasset, Myrtil L Kahn, Jonathan P Hill, Soizic Chevance, Fabienne Gauffre, Katsuhiko Ariga
Hollow nanocapsules (named Hybridosomes®) possessing a polymer/nanoparticle shell were used to covalently construct hybrid films in a one-pot fashion. The alkyne bearing organic/inorganic Hybridosomes® were reticulated with azide bearing homobifunctional polyethyleneglycol (PEG) linkers, by using an electro-click reaction on F-SnO2 (FTO) electrodes. The coatings were obtained by promoting the Cu(i)-catalyzed click reaction between alkyne and azide moieties in the vicinity of the electrode by the electrochemical generation of Cu(i) ions...
January 11, 2018: Physical Chemistry Chemical Physics: PCCP
Liang Ma, Peilin Jia, Zhongming Zhao
Recently, genome-wide association studies (GWAS) have identified 11 loci associated with adipose-related traits across different populations. However, their functional roles still remain largely unknown. In this study, we aimed to explore the splicing regulation of these GWAS signals in a tissue-specific fashion. For adipose-related GWAS signals, we selected six adipose-related tissues (adipose subcutaneous, artery tibial, blood, heart left ventricle, muscle-skeletal, and thyroid) with the sample size greater than 80 for splicing quantitative trait loci (QTL) analysis using GTEx released datasets...
January 10, 2018: Scientific Reports
Mohammed Marie, Anishkumar Manoharan, Andrian V Kuchuk, Simon Ang, M Omar Manasreh
An enzyme-free glucose sensor out of vertically grown Zinc oxide nanorods (ZnO NRs) functionalized with ferric oxide Fe2O3 is investigated. The well-aligned and high-dense ZnO NRs were synthesized on an FTO/glass substrate by sol-gel and hydrothermal growth methods. Dip-coating technique was utilized to modify the surface of the as-grown ZnO NRs with Fe2O3, and the immobilized surface was coated with a layer of a nafion membrane. The fabricated glucose sensor was characterized amperometrically using three electrodes station at room temperature in the phosphate buffer solution, where ZnO NRs/Fe2O3/nafion membrane was the sensing or working electrode, platinum plate and silver/silver chloride were the counter and the reference electrodes respectively...
January 10, 2018: Nanotechnology
T M Lancaster, I Ihssen, L M Brindley, D E Linden
The reward-processing network is implicated in the aetiology of obesity. Several lines of evidence suggest obesity-linked genetic risk loci (such as DRD2 and FTO) may influence individual variation in body mass index (BMI) through neuropsychological processes reflected in alterations in activation of the striatum during reward processing. However, no study has tested the broader hypotheses that (a) the relationship between BMI and reward-related brain activation (measured through the blood oxygenation-dependent (BOLD) signal) may be observed in a large population study and (b) the overall genetic architecture of these phenotypes overlap, an assumption critical for the progression of imaging genetic studies in obesity research...
January 10, 2018: Translational Psychiatry
Somorjit Singh Ningombam, Varhlun Chhungi, Masan Kambo Newmei, Sunanda Rajkumari, Naorem Kiranmala Devi, Prakash Ranjan Mondal, Kallur Nava Saraswathy
The fat mass and obesity associated (FTO) rs9939609 gene polymorphism is most widely studied in terms of obesity in various populations. Recently, the prevalence of obesity has been reported to be very high among the North-Eastern State of India. The major aim of the present study is to understand the extent of FTO rs9939609 gene polymorphism and its association with obesity among the two North-East Indian tribal populations with similar East Asian ancestry. Somatometric data and fasting blood sample were collected from 521 tribal individuals (258 Liangmai and 263 Mizo) of Manipur after obtaining written informed consent...
January 6, 2018: Gene
Shun Zhou, Zhou-Lan Bai, Di Xia, Zhi-Jun Zhao, Ren Zhao, Yan-Yang Wang, Hong Zhe
The role of N6 -methyladenosine (m6 A) demethylase Fat Mass and Obesity-associated protein (FTO) in the regulation of chemo-radiotherapy resistance remains largely unknown. Here, we show that the mRNA level of FTO is elevated in cervical squamous cell carcinoma (CSCC) tissues when compared with respective adjacent normal tissues. FTO enhances the chemo-radiotherapy resistance both in vitro and in vivo through regulating expression of β-catenin by reducing m6 A levels in its mRNA transcripts and in turn increases excision repair cross-complementation group 1 (ERCC1) activity...
January 9, 2018: Molecular Carcinogenesis
Małgorzata Szkup, Aleksander Jerzy Owczarek, Daria Schneider-Matyka, Jacek Brodowski, Beata Łój, Elżbieta Grochans
INTRODUCTION: Metabolic syndrome (MetS) is regarded as a set of abnormalities, increasing the risk of serious functioning disorders. It can develop as a result of genetic predisposition. AIM: The aim of this study was to establish associations between MetS-related abnormalities and the PPAR-γ rs1801282, FTO rs9939609, and MC4R rs17782313 polymorphisms. MATERIAL AND METHODS: The study involved 425 women aged 45-60 years. The participants were surveyed and subjected to anthropometric, biochemical and genetic analysis...
January 9, 2018: Aging
D Sinha, D De, A Ayaz
Environmental friendly natural dye curcumin extracted from low-cost Curcumina longa stem is used as a photo-sensitizer for the fabrication of ZnO-based dye-sensitized solar cells (DSSC). Nanostructured ZnO is fabricated on a transparent conducting glass (TCO), using a cost-effective chemical bath deposition technique. Scanning electron microscopic images show hexagonal patterned ZnO nano-towers decorated with several nanosteps. The average length of ZnO nano-tower is 5μm and diameter is 1.2μm. The UV-Vis spectroscopic study of the curcumin dye is used to understand the light absorption behavior as well as band gap energy of the extracted natural dye...
December 26, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
Jianqiang Qin, Zhenlong Zhang, Wenjia Shi, Yuefeng Liu, Huiping Gao, Yanli Mao
Perovskite solar cells (PSCs) have attracted tremendous attentions due to its high performance and rapid efficiency promotion. Compact layer plays a crucial role in transferring electrons and blocking charge recombination between the perovskite layer and fluorine-doped tin oxide (FTO) in PSCs. In this study, compact TiO2 layers were synthesized by spin-coating method with three different titanium precursors, titanium diisopropoxide bis (acetylacetonate) (c-TTDB), titanium isopropoxide (c-TTIP), and tetrabutyl titanate (c-TBOT), respectively...
December 29, 2017: Nanoscale Research Letters
Mauricio A Melo, Zongkai Wu, Benjamin A Nail, Alexandra De Denko, Ana F Nogueira, Frank E Osterloh
Surface photovoltage spectroscopy (SPS) is used to measure the photopotential across a Ru-SrTiO3:Rh/BiVO4 particle tandem overall water splitting photocatalyst. The tandem is synthesized from Ru-modified SrTiO3:Rh nanocrystals and BiVO4 microcrystals by electrostatic assembly followed by thermal annealing. It splits water into H2 and O2 with an apparent quantum efficiency of 1.29 % at 435 nm and a solar to hydrogen conversion efficiency of 0.028 %. According to SPS, a photovoltage develops above 2.20 eV, the effective band gap of the tandem, and reaches its maximal value of -2...
December 25, 2017: Nano Letters
Firoozeh Hosseini-Esfahani, Gelareh Koochakpoor, Maryam S Daneshpour, Parvin Mirmiran, Bahareh Sedaghati-Khayat, Fereidoun Azizi
Controversies surrounding the effectiveness of fiber intake for prevention of obesity can be attributed to differences in the genetic makeup of individuals. This study aims to examining the interaction between dietary fiber intake and common fat mass and obesity-associated (FTO) single-nucleotide polymorphisms (SNPs), in relation to obesity. Subjects of this nested case-control study were selected from among adult participants of the Tehran Lipid and Glucose Study. Cases (n = 627) were individually matched with controls, who had normal weight...
December 22, 2017: Scientific Reports
Mina S Khella, Ahmed M Salem, Omar Abdel-Rahman, Amr S Saad
AIMS: Despite the established link between malignant pleural mesothelioma (MPM) and asbestos exposure, genetic risk factors may play a key role in MPM pathogenesis. The rs9939609 polymorphism in the FTO gene has recently been implicated as a risk factor for some types of cancer, such as breast, pancreatic, and prostate cancers. FTO variation is associated with altered adipocytokine expression and oxidative stress inflammation, which may influence asbestos mediated-carcinogenesis. This is the first study to investigate a possible association between this polymorphism and MPM risk...
December 20, 2017: Genetic Testing and Molecular Biomarkers
Rui Su, Lei Dong, Chenying Li, Sigrid Nachtergaele, Mark Wunderlich, Ying Qing, Xiaolan Deng, Yungui Wang, Xiaocheng Weng, Chao Hu, Mengxia Yu, Jennifer Skibbe, Qing Dai, Dongling Zou, Tong Wu, Kangkang Yu, Hengyou Weng, Huilin Huang, Kyle Ferchen, Xi Qin, Bin Zhang, Jun Qi, Atsuo T Sasaki, David R Plas, James E Bradner, Minjie Wei, Guido Marcucci, Xi Jiang, James C Mulloy, Jie Jin, Chuan He, Jianjun Chen
R-2-hydroxyglutarate (R-2HG), produced at high levels by mutant isocitrate dehydrogenase 1/2 (IDH1/2) enzymes, was reported as an oncometabolite. We show here that R-2HG also exerts a broad anti-leukemic activity in vitro and in vivo by inhibiting leukemia cell proliferation/viability and by promoting cell-cycle arrest and apoptosis. Mechanistically, R-2HG inhibits fat mass and obesity-associated protein (FTO) activity, thereby increasing global N6-methyladenosine (m6A) RNA modification in R-2HG-sensitive leukemia cells, which in turn decreases the stability of MYC/CEBPA transcripts, leading to the suppression of relevant pathways...
December 11, 2017: Cell
Fatemeh Ansari, Pariya Nazari, Masoud Payandeh, Farzad Mardehkatani Asl, Bahram Abdollahi Nejand, Vahid Ahmadi, Jalal Taghiloo, Masoud Salavati
A new method for the deposition of a pinhole-free compact layer of TiO2 was introduced for the efficient perovskite solar cells. Acidic treatment of titanium layer (ATTL) which was deposited by rotational magnetron sputtering, presents a compact pinhole-free TiO2 thin film. Deposition of compact TiO2 thin film on FTO layers by ATTL did not change the surface roughness. To compare the introduced method, perovskite solar cell devices were fabricated and studied using different methods in the deposition of TiO2 compact layers, which were used as common compact layer deposition methods...
December 15, 2017: Nanotechnology
Gabrielle Araujo do Nascimento, Mayza Dalcin Teixeira, Lupe Furtado-Alle, Neiva Leite, Ricardo Lehtonen Rodrigues de Souza, Louise Farah Saliba, Gerusa Eisfeld Milano, Larissa Rosa da Silva, Juliana Pizzi, Wendell Arthur Lopes, Maria de Fátima Aguiar Lopes, Ana Cláudia Kapp Titski, Luciane Viater Tureck
PURPOSE: The fat mass and obesity-associated (FTO) gene is involved in energy homeostasis. The A allele of the rs9939609 (SNP; T>A) is associated with obesity and higher food intake, while its effect in energy expenditure remains unclear. The aim of this study is to examine whether FTO rs9939609 is associated with the anthropometric outcomes of a physical exercise program and a dietary intervention. METHODS: We studied two independent samples. The first was composed by children and adolescents in which overweight and obese individuals were submitted to a physical exercise program (n = 136) and normal weight participants served as a control group (n = 172)...
December 13, 2017: European Journal of Nutrition
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