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https://www.readbyqxmd.com/read/28222576/may-a-unitary-autonomic-index-help-assess-autonomic-cardiac-regulation-in-elite-athletes-preliminary-observations-on-the-national-italian-olympic-committee-team
#1
Roberto Sala, Mara Malacarne, Fabio Tosi, Manuela Benzi, Nadia Solaro, Stefano Tamorri, Antonio Spataro, Massimo Pagani, Daniela Lucini
BACKGROUND: Long term endurance training, as occurring in elite athletes, is associated to cardiac neural remodeling in favor of cardioprotective vagal mechanisms, resulting in resting bradycardia and augmented contribution of cardiac parasympathetic nerve activity. Autonomic assessment can be performed by way of Heart Rate Variability. This technique however provides multiple indices, and there is not yet complete agreement on their specific significance. Purpose of the study was to assess whether a rank transformation and radar plot could provide a unitary autonomic index, capable to show a correlation between intensity of individual work and quality of autonomic regulation...
February 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28222494/selecting-cases-and-controls-for-dna-sequencing-studies-using-family-histories-of-disease
#2
Wonji Kim, Dandi Qiao, Michael H Cho, Soo Heon Kwak, Kyong Soo Park, Edwin K Silverman, Pak Sham, Sungho Won
Recent improvements in sequencing technology have enabled the investigation of so-called missing heritability, and a large number of affected subjects have been sequenced in order to detect significant associations between human diseases and rare variants. However, the cost of genome sequencing is still high, and a statistically powerful strategy for selecting informative subjects would be useful. Therefore, in this report, we propose a new statistical method for selecting cases and controls for sequencing studies based on family history...
February 21, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/28222401/combination-of-sitagliptin-and-silymarin-ameliorates-liver-fibrosis-induced-by-carbon-tetrachloride-in-rats
#3
Samia Salem Sokar, Magda El-Sayed El-Sayad, Mai El-Sayed Ghoneim, Abdelhadi Mohamed Shebl
Liver fibrosis is a common pathological condition that occurs in most conditions associated with chronic liver injury. Silymarin is a herbal product widely used for its hepatoprotective effect. Sitagliptin, a dipeptidyl peptidase-4 inhibitor (DPP4-I), is clinically used as an oral antidiabetic agent. This study was designed to investigate the effects of Sitagliptin, Silymarin, and their combination on established liver fibrosis in carbon tetrachloride (CCl4) rat model. Male albino rats received intraperitoneal injections of CCl4 three times a week for 7 weeks, as well as daily oral treatments of Sitagliptin (100mg/kg) or Silymarin (100mg/kg) or their combination during the 7 weeks of intoxication...
February 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28222277/antibiotic-prophylaxis-in-blepharoplasty-review-of-the-current-literature
#4
REVIEW
Elie M Ferneini, Steven Halepas, Steven I Aronin
The purpose of this study was to provide an evidence-based overview of antibiotic prophylaxis in blepharoplasty. We performed a literature search that evaluated the risk of infection associated with blepharoplasty, as well as the risks and benefits of antibiotic prophylaxis. The overall infection rate associated with eyelid surgery is extremely low. However, the use of antibiotic prophylaxis has increased over the past 25 years in esthetic facial procedures. There is no standard of care for or against antibiotic prophylaxis, and routine practices vary widely...
February 1, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28222251/prognostic-methylation-markers-for-overall-survival-in-cytogenetically-normal-patients-with-acute-myeloid-leukemia-treated-on-swog-trials
#5
Xiaoyu Qu, Megan Othus, Jerry Davison, Yu Wu, Liying Yan, Soheil Meshinchi, Fabiana Ostronoff, Elihu H Estey, Jerry P Radich, Harry P Erba, Frederick R Appelbaum, Min Fang
BACKGROUND: Aberrant DNA methylation is known to occur in patients with acute myeloid leukemia (AML), whereas methylation signatures and prognostic markers have been proposed. The objective of the current study was to evaluate all CpG sites of the genome and identify prognostic methylation markers for overall survival in patients with AML with normal karyotype (AML-NK). METHODS: AML-NK samples from 7 SWOG trials were analyzed using a novel genome-wide approach called "CHARMcox" (comprehensive high-throughput array-based relative methylation analysis combined with the Cox proportional hazards model) controlling for known clinical covariates...
February 21, 2017: Cancer
https://www.readbyqxmd.com/read/28222112/genome-wide-study-of-resistant-hypertension-identified-from-electronic-health-records
#6
Logan Dumitrescu, Marylyn D Ritchie, Joshua C Denny, Nihal M El Rouby, Caitrin W McDonough, Yuki Bradford, Andrea H Ramirez, Suzette J Bielinski, Melissa A Basford, High Seng Chai, Peggy Peissig, David Carrell, Jyotishman Pathak, Luke V Rasmussen, Xiaoming Wang, Jennifer A Pacheco, Abel N Kho, M Geoffrey Hayes, Martha Matsumoto, Maureen E Smith, Rongling Li, Rhonda M Cooper-DeHoff, Iftikhar J Kullo, Christopher G Chute, Rex L Chisholm, Gail P Jarvik, Eric B Larson, David Carey, Catherine A McCarty, Marc S Williams, Dan M Roden, Erwin Bottinger, Julie A Johnson, Mariza de Andrade, Dana C Crawford
Resistant hypertension is defined as high blood pressure that remains above treatment goals in spite of the concurrent use of three antihypertensive agents from different classes. Despite the important health consequences of resistant hypertension, few studies of resistant hypertension have been conducted. To perform a genome-wide association study for resistant hypertension, we defined and identified cases of resistant hypertension and hypertensives with treated, controlled hypertension among >47,500 adults residing in the US linked to electronic health records (EHRs) and genotyped as part of the electronic MEdical Records & GEnomics (eMERGE) Network...
2017: PloS One
https://www.readbyqxmd.com/read/28222097/a-genome-wide-association-study-identifies-a-lncrna-as-risk-factor-for-pathological-inflammatory-responses-in-leprosy
#7
Vinicius M Fava, Jeremy Manry, Aurélie Cobat, Marianna Orlova, Nguyen Van Thuc, Milton O Moraes, Carolinne Sales-Marques, Mariane M A Stefani, Ana Carla P Latini, Andrea F Belone, Vu Hong Thai, Laurent Abel, Alexandre Alcaïs, Erwin Schurr
Leprosy Type-1 Reactions (T1Rs) are pathological inflammatory responses that afflict a sub-group of leprosy patients and result in peripheral nerve damage. Here, we employed a family-based GWAS in 221 families with 229 T1R-affect offspring with stepwise replication to identify risk factors for T1R. We discovered, replicated and validated T1R-specific associations with SNPs located in chromosome region 10p21.2. Combined analysis across the three independent samples resulted in strong evidence of association of rs1875147 with T1R (p = 4...
February 21, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28221366/pathway-wide-association-study-identifies-five-shared-pathways-associated-with-schizophrenia-in-three-ancestral-distinct-populations
#8
C Liu, C A Bousman, C Pantelis, E Skafidas, D Zhang, W Yue, I P Everall
Genome-wide association studies have confirmed the polygenic nature of schizophrenia and suggest that there are hundreds or thousands of alleles associated with increased liability for the disorder. However, the generalizability of any one allelic marker of liability is remarkably low and has bred the notion that schizophrenia may be better conceptualized as a pathway(s) disorder. Here, we empirically tested this notion by conducting a pathway-wide association study (PWAS) encompassing 255 experimentally validated Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways among 5033 individuals diagnosed with schizophrenia and 5332 unrelated healthy controls across three distinct ethnic populations; European-American (EA), African-American (AA) and Han Chinese (CH)...
February 21, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28221348/self-assembly-of-nanoparticles-into-biomimetic-capsid-like-nanoshells
#9
Ming Yang, Henry Chan, Gongpu Zhao, Joong Hwan Bahng, Peijun Zhang, Petr Král, Nicholas A Kotov
Nanoscale compartments are one of the foundational elements of living systems. Capsids, carboxysomes, exosomes, vacuoles and other nanoshells easily self-assemble from biomolecules such as lipids or proteins, but not from inorganic nanomaterials because of difficulties with the replication of spherical tiling. Here we show that stabilizer-free polydispersed inorganic nanoparticles (NPs) can spontaneously organize into porous nanoshells. The association of water-soluble CdS NPs into self-limited spherical capsules is the result of scale-modified electrostatic, dispersion and other colloidal forces...
March 2017: Nature Chemistry
https://www.readbyqxmd.com/read/28221285/genome-wide-methylation-analysis-of-a-large-population-sample-shows-neurological-pathways-involvement-in-chronic-widespread-musculoskeletal-pain-cwp
#10
Gregory Livshits, Ida Malkin, Maxim B Freidin, Yudong Xia, Fei Gao, Jun Wang, Timothy D Spector, Alex MacGregor, Jordana T Bell, Frances Mk Williams
Chronic widespread musculoskeletal pain (CWP), has a considerable heritable component, which remains to be explained. Epigenetic factors may contribute to and account for some of the heritability estimate. We analysed epigenome-wide methylation using MeDIPseq in whole blood DNA from 1708 monozygotic (MZ) and dizygotic (DZ) Caucasian twins having CWP prevalence of 19.9%. Longitudinally stable methylation bins (lsBINs), were established by testing repeated measurements conducted ≥3 years apart, n=292. DNA methylation variation at lsBINs was tested for association with CWP in a discovery set of 50 MZ twin pairs discordant for CWP, and in an independent dataset (n=1608 twins), and the results from the two samples were combined using Fisher's method...
February 15, 2017: Pain
https://www.readbyqxmd.com/read/28221052/the-association-between-arithmetic-and-reading-performance-in-school-a-meta-analytic-study
#11
Vivian Singer, Kathernie Strasser
Many studies of school achievement find a significant association between reading and arithmetic achievement. The magnitude of the association varies widely across the studies, but the sources of this variation have not been identified. The purpose of this paper is to examine the magnitude and determinants of the relation between arithmetic and reading performance during elementary and middle school years. We meta-analyzed 210 correlations between math and reading measures, coming from 68 independent samples (the overall sample size was 58923 participants)...
February 20, 2017: School Psychology Quarterly
https://www.readbyqxmd.com/read/28220869/nitric-oxide-is-involved-in-the-oxytetracycline-induced-suppression-of-root-growth-through-inhibiting-hydrogen-peroxide-accumulation-in-the-root-meristem
#12
Qing-Xiang Yu, Golam Jalal Ahammed, Yan-Hong Zhou, Kai Shi, Jie Zhou, Yunlong Yu, Jing-Quan Yu, Xiao-Jian Xia
Use of antibiotic-contaminated manure in crop production poses a severe threat to soil and plant health. However, few studies have studied the mechanism by which plant development is affected by antibiotics. Here, we used microscopy, flow cytometry, gene expression analysis and fluorescent dyes to study the effects of oxytetracycline (OTC), a widely used antibiotic in agriculture, on root meristem activity and the accumulation of hydrogen peroxide (H2O2) and nitric oxide (NO) in the root tips of tomato seedlings...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28220687/environmental-factors-seven-gwas-identified-susceptibility-loci-and-risk-of-gastric-cancer-and-its-precursors-in-a-chinese-population
#13
Meng Cai, Shuyang Dai, Wanqing Chen, Changfa Xia, Lingeng Lu, Shuguang Dai, Jun Qi, Minjie Wang, Meilin Wang, Lanping Zhou, Fuhua Lei, Tingting Zuo, Hongmei Zeng, Xiaohang Zhao
Gene-environment interactions may increase gastric cancer (GC) risk. Seven susceptibility loci identified by genome-wide association studies (GWASs) suggest that genetic factors play a role in gastric carcinogenesis. Meanwhile, Helicobacter pylori (H. pylori) infection, smoking, and alcohol drinking are also important environmental factors for gastric cancer. However, studies to explore the role of gene-environment interactions in gastric carcinogenesis, and particularly the relationship between the seven susceptibility loci and their potential interactions with H...
February 21, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28220382/meta-analysis-of-laparoscopic-vs-open-liver-resection-for-hepatocellular-carcinoma
#14
Georgios C Sotiropoulos, Anastasia Prodromidou, Ioannis D Kostakis, Nikolaos Machairas
Laparoscopic liver resections (LLR) are widely accepted as safe and effective procedures for the management of hepatocellular carcinoma (HCC) in the hands of experienced surgeons. The efficacy and extent of benefits of pure as well as hand-assisted laparoscopic and laparoscopy-assisted liver resection over open liver resection (OLR) have been investigated by numerous studies during the last 10 years. The aim of our meta-analysis is to investigate the effect of LLR in short- and long-term outcomes compared to OLR in patients operated for HCC...
February 20, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28220139/genome-wide-single-nucleotide-polymorphism-discovery-and-the-construction-of-a-high-density-genetic-map-for-melon-cucumis-melo-l-using-genotyping-by-sequencing
#15
Che-Wei Chang, Yu-Hua Wang, Chih-Wei Tung
Although genotyping-by-sequencing (GBS) enables the efficient and low-cost generation of large numbers of markers, the utility of resultant genotypes are limited, because they are enormously error-prone and contain high proportions of missing data. In this study, we generated single nucleotide polymorphism (SNP) markers for 109 recombinant inbred lines of melon (Cucumis melo L.) using the GBS approach and ordered them according to their physical position on the draft double haploid line DHL92 genome. Next, by investigating associations between these SNPs, we discovered that some segments on the physical map conflict with linkage relationships...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28219891/peripherally-generated-foxp3-regulatory-t-cells-mediate-the-immunomodulatory-effects-of-ivig-in-allergic-airways-disease
#16
Amir H Massoud, Gabriel N Kaufman, Di Xue, Marianne Béland, Marieme Dembele, Ciriaco A Piccirillo, Walid Mourad, Bruce D Mazer
IVIg is widely used as an immunomodulatory therapy. We have recently demonstrated that IVIg protects against airway hyperresponsiveness (AHR) and inflammation in mouse models of allergic airways disease (AAD), associated with induction of Foxp3(+) regulatory T cells (Treg). Using mice carrying a DTR/EGFP transgene under the control of the Foxp3 promoter (DEREG mice), we demonstrate in this study that IVIg generates a de novo population of peripheral Treg (pTreg) in the absence of endogenous Treg. IVIg-generated pTreg were sufficient for inhibition of OVA-induced AHR in an Ag-driven murine model of AAD...
February 20, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28219754/identification-of-responsive-proteins-in-panonychus-citri-exposed-to-abamectin-by-a-proteomic-approach
#17
Xiao-Min Shen, Rui Zhong, Wen-Kai Xia, Dong Wei, Tian-Bo Ding, Chong-Yu Liao, Jin-Zhi Niu, Wei Dou, Jin-Jun Wang
: Abamectin is a microbial-derived pesticide widely used for control of agricultural pests. However, sustained use of abamectin has led to the development of resistance in some target species. Previous studies on arthropod resistance to abamectin have mainly used traditional biochemical and molecular approaches. To understand the responses of citrus red mite, Panonychus citri, exposed to abamectin, comparative proteomic analysis was conducted using two-dimensional electrophoresis (2-DE)...
February 17, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28219716/genetic-regulation-of-differentially-methylated-genes-in-visceral-adipose-tissue-of-severely-obese-men-discordant-for-the-metabolic-syndrome
#18
Frédéric Guénard, André Tchernof, Yves Deshaies, Simon Biron, Odette Lescelleur, Laurent Biertho, Simon Marceau, Louis Pérusse, Marie-Claude Vohl
A genetic influence on methylation levels has been reported and methylation quantitative trait loci (meQTL) have been identified in various tissues. The contribution of genetic and epigenetic factors in the development of the metabolic syndrome (MetS) has also been noted. To pinpoint candidate genes for testing the association of SNPs with MetS and its components, we aimed to evaluate the contribution of genetic variations to differentially methylated CpG sites in severely obese men discordant for MetS. A genome-wide differential methylation analysis was conducted in visceral adipose tissue (VAT) of 31 severely obese men discordant for MetS (16 with and 15 without MetS) and identified ∼17,800 variable CpG sites...
February 2, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/28219476/genetic-parameters-and-genome-wide-associations-of-twinning-rate-in-a-local-breed-the-maremmana-cattle
#19
B Moioli, R Steri, C Marchitelli, G Catillo, L Buttazzoni
This study seeks to verify the feasibility of increasing twinning in a herd of the Italian autochtonous Maremmana breed. The data set included 1260 individuals born from 1963 to 2014, 527 males and 733 females, 402 of them calving at least once from 1983 through 2015. Breeding values for twinning were estimated by a single-trait linear animal model. However, since twinning is a dichotomous trait and the frequency of twins is far smaller than the frequency of single births, breeding values were also estimated by a single-trait animal threshold model...
February 21, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28219397/immunohistochemistry-of-sarcolemmal-membrane-associated-proteins-in-formalin-fixed-and-paraffin-embedded-skeletal-muscle-tissue-a-promising-tool-for-the-diagnostic-evaluation-of-common-muscular-dystrophies
#20
Chinnawut Suriyonplengsaeng, Charungthai Dejthevaporn, Chaiyos Khongkhatithum, Suda Sanpapant, Nattha Tubthong, Koset Pinpradap, Nippa Srinark, Jariya Waisayarat
BACKGROUND: The analysis of fresh frozen muscle specimens is standard following routine muscle biopsy, but this service is not widely available in countries with limited medical facilities, such as Thailand. Nevertheless, immunohistochemistry (IHC) analysis is essential for the diagnosis of patients with a strong clinical suspicion of muscular dystrophy, in the absence of mutations detected by molecular genetics. As the successful labelling of sarcolemmal membrane-associated proteins in formalin-fixed and paraffin-embedded (FFPE) muscle sections using IHC staining has rarely been described, this study aimed to develop a reproducible IHC method for such an analysis...
February 20, 2017: Diagnostic Pathology
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