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https://www.readbyqxmd.com/read/28103623/metabolic-inflexibility-with-obesity-and-the-effects-of-fenofibrate-on-skeletal-muscle-fatty-acid-oxidation
#1
Kristen E Boyle, Jacob E Friedman, Rachel C Janssen, Chantal Underkofler, Joseph A Houmard, Neda Rasouli
This study was designed to investigate mechanisms of lipid metabolic inflexibility in human obesity and the ability of fenofibrate (FENO) to increase skeletal muscle fatty acid oxidation (FAO) in primary human skeletal muscle cell cultures (HSkMC) exhibiting metabolic inflexibility. HSkMC from 10 lean and 10 obese, insulin resistant subjects were treated with excess fatty acid for 24 h (24hFA) to gauge lipid-related metabolic flexibility. Metabolically inflexible HSkMC from obese individuals were then treated with 24hFA in combination with FENO to determine effectiveness for increasing FAO...
January 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28103595/identification-of-small-peptides-in-human-cerebrospinal-fluid-upon-amyloid-%C3%AE-degradation
#2
Naoki Mizuta, Kanta Yanagida, Takashi Kodama, Takeshi Tomonaga, Mako Takami, Hiroshi Oyama, Takashi Kudo, Manabu Ikeda, Masatoshi Takeda, Shinji Tagami, Masayasu Okochi
BACKGROUND: Amyloid-β (Aβ) degradation in brains of Alzheimer disease patients is a crucial focus for the clarification of disease pathogenesis. Nevertheless, the mechanisms underlying Aβ degradation in the human brain remain unclear. OBJECTIVE: This study aimed to quantify the levels of small C-terminal Aβ fragments generated upon Aβ degradation in human cerebrospinal fluid (CSF). METHODS: A fraction containing small peptides was isolated and purified from human CSF by high-pressure liquid chromatography...
January 20, 2017: Neuro-degenerative Diseases
https://www.readbyqxmd.com/read/28103460/-pneumocystis-pneumonia-in-107-hiv-infected-patients-admitted-to-the-department-of-infectious-diseases-at-santa-maria-hospital-lisbon-2002-2013
#3
Vilma Grilo, Aida Pereira
INTRODUCTION: Pneumocystis jirovecii pneumonia remains one of the most common opportunistic illnesses in patients infected with the human immunodeficiency virus. It is currently the most reported AIDS-defining infection in Portugal. The aims of this study were to analyze the features of a human immunodeficiency virus /Pneumocystis jirovecii pneumonia coinfected population, to compare it with the current literature, and to evaluate comparatively subpopulations of patients based on the previous knowledge of the human immunodeficiency virus infection, Pneumocystis jirovecii pneumonia diagnostic method and discharge results...
October 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28103423/adipose-derived-perivascular-mesenchymal-stromal-stem-cells-promote-functional-vascular-tissue-engineering-for-cardiac-regenerative-purposes
#4
Justin Morrissette-McAlmon, Adriana Blazeski, Sarah Somers, Geran Kostecki, Leslie Tung, Warren L Grayson
Cardiac tissue engineering approaches have the potential to regenerate functional myocardium with intrinsic vascular networks. In this study, we compared the relative effects of human adipose-derived stem/stromal cells (hASCs) and human dermal fibroblasts (hDFs) in co-cultures with neonatal rat ventricular cardiomyocytes (NRVCMs) and human umbilical vein endothelial cells (HUVECs). We found that at the same ratios of NRVCM:hASC and NRVCM:hDF, the hASC co-cultures displayed shorter action potentials and maintained capture at faster pacing rates...
January 19, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28103388/climbazole-boosts-activity-of-retinoids-in-skin
#5
Jean Adamus, Li Feng, Stacy Hawkins, Kristopher Kalleberg, Jian-Ming Lee
OBJECTIVE: To explore if climbazole enhances retinoid-associated biological activities in vitro and in vivo. METHODS: Primary human dermal fibroblasts (HDFs) were treated from six to 48 hours with either retinoids (retinol, retinyl propionate, retinyl palmitate) alone or in combination with climbazole, then assessed for cellular retinoic acid-binding protein 2 (CRABP2) mRNA expression by RT-qPCR. Next, skin equivalent (SE) cultures were topically treated with a retinol or retinyl propionate, and with or without climbazole, then measured for biological changes in retinoid biomarkers...
January 19, 2017: International Journal of Cosmetic Science
https://www.readbyqxmd.com/read/28103318/static-and-evolving-norovirus-genotypes-implications-for-epidemiology-and-immunity
#6
Gabriel I Parra, R Burke Squires, Consolee K Karangwa, Jordan A Johnson, Cara Lepore, Stanislav V Sosnovtsev, Kim Y Green
Noroviruses are major pathogens associated with acute gastroenteritis worldwide. Their RNA genomes are diverse, with two major genogroups (GI and GII) comprised of at least 28 genotypes associated with human disease. To elucidate mechanisms underlying norovirus diversity and evolution, we used a large-scale genomics approach to analyze human norovirus sequences. Comparison of over 2000 nearly full-length ORF2 sequences representing most of the known GI and GII genotypes infecting humans showed a limited number (≤5) of distinct intra-genotypic variants within each genotype, with the exception of GII...
January 19, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28103294/community-based-entomological-surveillance-reveals-urban-foci-of-chagas-disease-vectors-in-sobral-state-of-cear%C3%A3-northeastern-brazil
#7
Cynara Carvalho Parente, Fernando S M Bezerra, Plutarco I Parente, Raimundo V Dias-Neto, Samanta C C Xavier, Alberto N Ramos, Filipe A Carvalho-Costa, Marli M Lima
BACKGROUND: The aim of this work was to explore the potential risk of vector-borne Chagas disease in urban districts in northeastern Brazil, by analyzing the spatiotemporal distributions and natural infection rates with Trypanosoma cruzi of triatomine species captured in recent years. The main motivation of this work was an acute human case of Chagas disease reported in 2008 in the municipality of Sobral. METHODOLOGY/PRINCIPAL FINDINGS: We analyzed data from community-based entomological surveillance carried out from 2010 to 2014...
2017: PloS One
https://www.readbyqxmd.com/read/28103290/involvement-of-ddah-adma-nos-cgmp-and-cox-2-ptgis-camp-pathways-in-human-tissue-kallikrein-1-protecting-erectile-function-in-aged-rats
#8
Kai Cui, Yang Luan, Zhe Tang, Ke Rao, Tao Wang, Zhong Chen, Shaogang Wang, Jihong Liu, Daowen Wang
Our previous studies had reported that Human Tissue Kallikrein 1 (hKLK1) preserved erectile function in aged transgenic rats, while the detailed mechanism of hKLK1 protecting erectile function in aged rats through activation of cGMP and cAMP was not mentioned. To explore the latent mechanism, male wild-type Sprague-Dawley rats (WTR) and transgenic rats harboring the hKLK1 gene (TGR) were fed to 4 and 18 months old and divided into four groups: young WTR (yWTR) as the control, aged WTR (aWTR), aged TGR (aTGR) and aged TGRs with HOE140 (aTGRH)...
2017: PloS One
https://www.readbyqxmd.com/read/28103280/formulation-general-features-and-global-calibration-of-a-bioenergetically-constrained-fishery-model
#9
David A Carozza, Daniele Bianchi, Eric D Galbraith
Human exploitation of marine resources is profoundly altering marine ecosystems, while climate change is expected to further impact commercially-harvested fish and other species. Although the global fishery is a highly complex system with many unpredictable aspects, the bioenergetic limits on fish production and the response of fishing effort to profit are both relatively tractable, and are sure to play important roles. Here we describe a generalized, coupled biological-economic model of the global marine fishery that represents both of these aspects in a unified framework, the BiOeconomic mArine Trophic Size-spectrum (BOATS) model...
2017: PloS One
https://www.readbyqxmd.com/read/28103273/association-between-genetic-polymorphisms-in-interleukin-genes-and-recurrent-pregnancy-loss-a-systematic-review-and-meta-analysis
#10
Meixiang Zhang, Jiawei Xu, Xiao Bao, Wenbin Niu, Linlin Wang, Linqing Du, Nan Zhang, Yingpu Sun
Interleukins are a group of immunomodulatory proteins that mediate a variety of immune reactions in the human body. To investigate the association between interleukin gene polymorphisms and recurrent pregnancy loss (RPL), we reviewed 21 studies from MEDLINE, EMBASE, OVID SP and PubMed to evaluate RPL-related interleukin gene polymorphisms. Meta-analysis was performed on 12 of the polymorphisms, and a review included the others. Our integrated results indicated that IL-1β (-511C/T) (P = 0.02, 95% CI 0.77[0...
2017: PloS One
https://www.readbyqxmd.com/read/28103272/prevalence-and-determinants-of-oral-human-papillomavirus-infection-in-500-young-adults-from-italy
#11
Valentina Lupato, Dana Holzinger, Daniela Höfler, Anna Menegaldo, Paolo Giorgi Rossi, Annarosa Del Mistro, Maria Cristina Da Mosto, Michael Pawlita, Paolo Boscolo-Rizzo
Although the prevalence of human papillomavirus (HPV)-related oropharyngeal squamous cell carcinoma (OPSCC) is increasing in developed countries and becoming a relevant health issue, the natural history of oral HPV infection is still unclear. Estimating the infection's prevalence in specific populations and identifying risk factors can widen our understanding of its natural history and help to delineate appropriate prevention strategies. This study sought to (i) determine oral HPV prevalence and genotype distribution in a large series of young Italian adults, (ii) validate an oral rinse sampling/storage protocol, and (iii) pinpoint factors associated with oral HPV infection...
2017: PloS One
https://www.readbyqxmd.com/read/28103269/wildlife-population-dynamics-in-human-dominated-landscapes-under-community-based-conservation-the-example-of-nakuru-wildlife-conservancy-kenya
#12
Joseph O Ogutu, Bernard Kuloba, Hans-Peter Piepho, Erustus Kanga
Wildlife conservation is facing numerous and mounting challenges on private and communal lands in Africa, including in Kenya. We analyze the population dynamics of 44 common wildlife species in relation to rainfall variation in the Nakuru Wildlife Conservancy (NWC), located in the Nakuru-Naivasha region of Kenya, based on ground total counts carried out twice each year from March 1996 to May 2015. Rainfall in the region was quasi-periodic with cycle periods dependent on the rainfall component and varying from 2...
2017: PloS One
https://www.readbyqxmd.com/read/28103232/a-model-of-compound-heterozygous-loss-of-function-alleles-is-broadly-consistent-with-observations-from-complex-disease-gwas-datasets
#13
Jaleal S Sanjak, Anthony D Long, Kevin R Thornton
The genetic component of complex disease risk in humans remains largely unexplained. A corollary is that the allelic spectrum of genetic variants contributing to complex disease risk is unknown. Theoretical models that relate population genetic processes to the maintenance of genetic variation for quantitative traits may suggest profitable avenues for future experimental design. Here we use forward simulation to model a genomic region evolving under a balance between recurrent deleterious mutation and Gaussian stabilizing selection...
January 19, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28102981/health-care-programs-fraud-and-abuse-revisions-to-the-office-of-inspector-general-s-exclusion-authorities-final-rule
#14
(no author information available yet)
This final rule amends the regulations relating to exclusion authorities under the authority of the Office of Inspector General (OIG) of the Department of Health and Human Services (HHS or the Department). The final rule incorporates statutory changes, early reinstatement provisions, and policy changes, and clarifies existing regulatory provisions.
12, 2017: Federal Register
https://www.readbyqxmd.com/read/28102942/a-platform-independent-method-to-reduce-ct-truncation-artifacts-using-discriminative-dictionary-representations
#15
Yang Chen, Adam Budde, Ke Li, Yinsheng Li, Jiang Hsieh, Guang-Hong Chen
PURPOSE: When the scan field of view (SFOV) of a CT system is not large enough to enclose the entire cross-section of the patient, or the patient needs to be positioned partially outside the SFOV for certain clinical applications, truncation artifacts often appear in the reconstructed CT images. Many truncation artifact correction methods perform extrapolations of the truncated projection data based on certain a priori assumptions. The purpose of this work was to develop a novel CT truncation artifact reduction method that directly operates on DICOM images...
January 2017: Medical Physics
https://www.readbyqxmd.com/read/28102712/bone-morphogenetic-protein-2-and-7-mediate-the-anabolic-function-of-nucleus-pulposus-cells-with-discrete-mechanisms
#16
Victor Yl Leung, Lixiong Zhou, Wai-Kit Tam, Yi Sun, Fengjuan Lv, Guangqian Zhou, Kenneth Mc Cheung
Bone morphogenetic proteins (BMPs) play roles in promoting cell anabolism, especially extracellular matrix production. The difference between BMP members in their capacity to modulate intervertebral disc cell activity is yet to be defined. BMP-7/OP-1 has been shown to retard disc degeneration. We compared the activity of BMP-7 with BMP-2 on nucleus pulposus (NP) cell phenotype and function, and investigated how they differentially affect the gene expression profiles of signaling cascade components in human NP cells under degenerative states...
January 19, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/28102609/immunogenicity-of-hepatic-differentiated-human-umbilical-cord-mesenchymal-stem-cells-promoted-by-porcine-decellularized-liver-scaffolds
#17
Yi Li, Qiong Wu, Yujia Wang, Li Li, Fei Chen, Yujun Shi, Hong Bu, Ji Bao
Cell-based approaches, including hepatocyte transplantation and tissue-engineered livers, offer promising alternatives and are expected to help support patients with liver diseases until liver transplantation or recovery via regeneration of the damaged liver. However, the success of cell therapies remains dependent on how well the cells are accepted after transplantation and is directly related to their degree of immunogenicity. In this study, hepatic differentiation of human umbilical cord mesenchymal stem cells (hUC-MSCs) was induced in the traditional monolayer (2D) culture and newly established three-dimensional (3D) aggregation culture with the porcine decellularized liver scaffold (DLS) system (3D-DLS)...
January 19, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28102479/peripherally-inserted-central-catheter-related-bloodstream-infection-caused-by-kocuria-marina-in-an-elderly-man
#18
Nobuaki Mori, Yuichi Nishihara, Hideki Tayama, Akiko Higuchi, Yasuko Aoki
BACKGROUND: Kocuria species are Gram-positive, aerobic cocci, and members of the Micrcoccaceae family that are known to be opportunistic pathogens. Although there have been sporadic reports of infections caused by Kocuria species, little is known regarding their human pathogenicity and clinical characteristics. CASE REPORT: We herein report a case of a peripherally inserted central catheter (PICC)-related bloodstream infection caused by Kocuria marina in a 90-year-old Japanese with multiple cancer...
January 19, 2017: Infection
https://www.readbyqxmd.com/read/28102439/reconstruction-of-radionuclide-intakes-for-the-residents-of-east-urals-radioactive-trace-1957-2011
#19
Evgenia I Tolstykh, Lyudmila M Peremyslova, Marina O Degteva, Bruce A Napier
The East Urals Radioactive Trace (EURT) was formed after a chemical explosion in the radioactive waste-storage facility of the Mayak Production Association in 1957 (Southern Urals, Russia) and resulted in an activity dispersion of 7.4 × 10(16) Bq into the atmosphere. Internal exposure due to ingestion of radionuclides with local foodstuffs was the main factor of public exposure at the EURT. The EURT cohort, combining residents of most contaminated settlements, was formed for epidemiological study at the Urals Research Center for Radiation Medicine, Russia (URCRM)...
January 19, 2017: Radiation and Environmental Biophysics
https://www.readbyqxmd.com/read/28102432/synthesis-of-human-parainfluenza-virus-4-nucleocapsid-like-particles-in-yeast-and-their-use-for-detection-of-virus-specific-antibodies-in-human-serum
#20
Aistė Bulavaitė, Rita Lasickienė, Paulius Lukas Tamošiūnas, Martynas Simanavičius, Kęstutis Sasnauskas, Aurelija Žvirblienė
The aim of this study was to produce human parainfluenza virus type 4 (HPIV4) nucleocapsid (N) protein in yeast Saccharomyces cerevisiae expression system, to explore its structural and antigenic properties and to evaluate its applicability in serology. The use of an optimized gene encoding HPIV4 N protein amino acid (aa) sequence GenBank AGU90031.1 allowed high yield of recombinant N protein forming nucleocapsid-like particles (NLPs) in yeast. A substitution L332D disrupted self-assembly of NLPs, confirming the role of this position in the N proteins of Paramyxovirinae...
January 19, 2017: Applied Microbiology and Biotechnology
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