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https://www.readbyqxmd.com/read/28448539/causal-relationship-between-obesity-and-serum-testosterone-status-in-men-a-bi-directional-mendelian-randomization-analysis
#1
Joel Eriksson, Robin Haring, Niels Grarup, Liesbeth Vandenput, Henri Wallaschofski, Erik Lorentzen, Torben Hansen, Dan Mellström, Oluf Pedersen, Matthias Nauck, Mattias Lorentzon, Lise Lotte Nystrup Husemoen, Henry Völzke, Magnus Karlsson, Sebastian E Baumeister, Allan Linneberg, Claes Ohlsson
CONTEXT: Obesity in men is associated with low serum testosterone and both are associated with several diseases and increased mortality. OBJECTIVES: Examine the direction and causality of the relationship between body mass index (BMI) and serum testosterone. DESIGN: Bi-directional Mendelian randomization (MR) analysis on prospective cohorts. SETTING: Five cohorts from Denmark, Germany and Sweden (Inter99, SHIP, SHIP Trend, GOOD and MrOS Sweden)...
2017: PloS One
https://www.readbyqxmd.com/read/28446674/broadening-cd4-and-cd8-t-cell-responses-against-hepatitis-c-virus-by-vaccination-with-ns3-overlapping-peptide-panels-in-cross-priming-liposomes
#2
Jonathan Filskov, Marianne Mikkelsen, Paul R Hansen, Jan P Christensen, Allan R Thomsen, Peter Andersen, Jens Bukh, Else Marie Agger
Despite the introduction of effective drugs to treat patients with chronic hepatitis C virus (HCV) infection, a vaccine would be the only means to substantially reduce the worldwide disease burden. An incomplete understanding of how HCV interacts with its human host and evades immune surveillance has hampered vaccine development. It is generally accepted that in infected individuals, a narrow repertoire of exhausted T cells is a hallmark of persistent infection, whereas broad vigorous CD4(+) and CD8(+) T cell responses are associated with control of acute hepatitis C...
April 26, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28446218/increased-galectin-3-may-serve-as-a-serologic-signature-of-pre-rheumatoid-arthritis-while-markers-of-synovitis-and-cartilage-do-not-differ-between-early-undifferentiated-arthritis-subsets
#3
Saida Farah Issa, Anne Duer, Mikkel Østergaard, Kim Hørslev-Petersen, Merete L Hetland, Michael Sejer Hansen, Kirsten Junker, Hanne M Lindegaard, Jakob M Møller, Peter Junker
BACKGROUND: Undifferentiated arthritis (UA) is a label applied to patients with joint complaints which cannot be classified according to current criteria, which implies a need for precision diagnostic technologies. We studied serum galectin-3, a proinflammatory mediator, and seromarkers of structural joint elements in patients with early, UA and their associations with disease profile and biochemical and imaging findings. METHODS: One hundred and eleven UA patients were followed-up for at least 12 months and reclassified according to appropriate criteria (TUDAR)...
April 26, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28445776/antimicrobial-resistance-in-the-bacteroides-fragilis-group-in-faecal-samples-from-patients-receiving-broad-spectrum-antibiotics
#4
Kia Cirkeline Møller Hansen, Simon A F Schwensen, Daniel Pilsgaard Henriksen, Ulrik Stenz Justesen, Thomas Vognbjerg Sydenham
Members of the Bacteroides fragilis group are opportunistic pathogens and cause severe infections including bacteraemia. As increased levels of antimicrobial resistance in B. fragilis group bacteria can be detected years after administration of specific antibiotics, monitoring antimicrobial susceptibility in the gut microbiota could be important. The objectives of this study were to 1) investigate the distribution of species and the occurrence of reduced antimicrobial susceptibility in the B. fragilis group from patients treated at departments with a high level of antibiotic use, 2) to determine the prevalence of the carbapenem resistance gene cfiA in B...
April 23, 2017: Anaerobe
https://www.readbyqxmd.com/read/28444162/coronary-artery-disease-severity-and-long-term-cardiovascular-risk-in-patients-with-myocardial-infarction-a-danish-nationwide-register-based-cohort-study
#5
Cengiz Özcan, Anna Deleskog, Anne-Marie Schjerning Olsen, Helene Nordahl Christensen, Morten Lock Hansen, Gunnar Hilmar Gislason
Background: HASH(0x42a9440) Long-term prognostic impact of coronary artery disease (CAD) severity in stable post-myocardial infarction (MI) patients is not well known. We examined the impact of CAD severity and co-morbidity on long-term (one year and beyond) risk of cardiovascular events after MI. Methods and Results: HASH(0x4266420) From nationwide administrative and clinical registers, we identified 55,747 MI patients, during 2004 to 2010, who had not experienced subsequent MI, stroke or death within 7 day post-discharge...
April 21, 2017: European Heart Journal. Cardiovascular Pharmacotherapy
https://www.readbyqxmd.com/read/28442216/trem2-microglia-and-neurodegenerative-diseases
#6
REVIEW
Felix L Yeh, David V Hansen, Morgan Sheng
Alzheimer's disease (AD) is the most common form of dementia and the 6th leading cause of death in the US. The neuropathological hallmarks of the disease are extracellular amyloid-β (Aβ) plaques and intraneuronal hyperphosphorylated tau aggregates. Genetic variants of TREM2 (triggering receptor expressed on myeloid cells 2), a cell-surface receptor expressed selectively in myeloid cells, greatly increase the risk of AD, implicating microglia and the innate immune system as pivotal factors in AD pathogenesis...
April 22, 2017: Trends in Molecular Medicine
https://www.readbyqxmd.com/read/28441695/increased-high-risk-coronary-plaque-burden-is-associated-with-arterial-stiffness-in-patients-with-type-2-diabetes-without-clinical-signs-of-coronary-artery-disease-a-computed-tomography-angiography-study
#7
Kristian L Funck, Esben Laugesen, Kristian Øvrehus, Jesper M Jensen, Bjarne L Nørgaard, Damini Dey, Troels K Hansen, Per L Poulsen
OBJECTIVES: Arterial stiffness and subclinical coronary atherosclerosis may yield valuable information on cardiovascular risk. We aimed to characterize coronary atherosclerosis in asymptomatic patients with type 2 diabetes and healthy controls and to investigate the association between baseline arterial stiffness and coronary plaque volumes after 5-year follow-up. METHODS: Data from 45 patients and 61 matched controls were available for coronary plaque assessment...
June 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28440223/structural-insights-into-the-molecular-mechanisms-of-myasthenia-gravis-and-their-therapeutic-implications
#8
Kaori Noridomi, Go Watanabe, Melissa N Hansen, Gye Won Han, Lin Chen
The nicotinic acetylcholine receptor (nAChR) is a major target of autoantibodies in myasthenia gravis (MG), an autoimmune disease that causes neuromuscular transmission dysfunction. Despite decades of research, the molecular mechanisms underlying MG have not been fully elucidated. Here, we present the crystal structure of the nAChR α1 subunit bound by the Fab fragment of mAb35, a reference monoclonal antibody that causes experimental MG and competes with ~65% of antibodies from MG patients. Our structures reveal for the first time the detailed molecular interactions between MG antibodies and a core region on nAChR α1...
April 25, 2017: ELife
https://www.readbyqxmd.com/read/28439941/serological-biomarkers-detect-active-joint-destruction-and-inflammation-in-patients-with-haemophilic-arthropathy
#9
B Hua, E H N Olsen, S Sun, C N Gudme, L Wang, B Vandahl, K Roepstorff, M Kjelgaard-Hansen, B B Sørensen, Y Zhao, M A Karsdal, T Manon-Jensen
INTRODUCTION: Progressive arthropathy caused by recurrent joint bleeds is a severe complication in haemophilia. AIM: We investigated whether biomarkers of cartilage and bone degradation, and inflammation were altered in haemophilia patients and whether these biomarkers could identify haemophilia patients with arthropathy. METHODS: Serum from 35 haemophilia patients with varying degrees of arthropathy and 43 age- and gender-matched control subjects were analysed...
April 24, 2017: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/28438747/low-ldl-cholesterol-pcsk9-and-hmgcr-genetic-variation-and-risk-of-alzheimer-s-disease-and-parkinson-s-disease-mendelian-randomisation-study
#10
Marianne Benn, Børge G Nordestgaard, Ruth Frikke-Schmidt, Anne Tybjærg-Hansen
Objective To test the hypothesis that low density lipoprotein (LDL) cholesterol due to genetic variation in the genes responsible for LDL cholesterol metabolism and biosynthesis(PCSK9 and 3-hydroxy-3-methylglutaryl-CoA reductase (HMGCR), respectively) is associated with a high risk of Alzheimer's disease, vascular dementia, any dementia, and Parkinson's disease in the general population.Design Mendelian randomisation study.Setting Copenhagen General Population Study and Copenhagen City Heart Study.Participants 111 194 individuals from the Danish general population...
April 24, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28438659/the-nrf2-activator-dh404-attenuates-adverse-ventricular-remodelling-post-myocardial-infarction-by-modifying-redox-signalling
#11
Kristen J Bubb, Cindy Kok, Owen Tang, Nathalie B Rasko, Asa Birna Birgisdottir, Thomas Hansen, Rebecca Ritchie, Ravinay Bhindi, Scott A Reisman, Colin Meyer, Keith Ward, Keyvan Karimi Galougahi, Gemma A Figtree
BACKGROUND: The novel synthetic triterpenoid, bardoxolone methyl, has the ability to upregulate cytoprotective proteins via induction of the nuclear factor erythroid-2-related factor 2 (Nrf2) pathway. This makes it a promising therapeutic agent in disease states characterized by dysregulated oxidative signalling. We have examined the effect of a Nrf2 activator, dihydro-CDDO-trifluoroethyl amide (DH404), a derivative of bardoxolone methyl, on post-infarct cardiac remodeling in rats. METHODS/RESULTS: DH404, administered from day 2 post myocardial infarction (MI: 30 min transient ischemia followed by reperfusion) resulted in almost complete protection against adverse ventricular remodeling as assessed at day 28 (left ventricular end-systolic area: sham 0...
April 21, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28436986/adiposity-amplifies-the-genetic-risk-of-fatty-liver-disease-conferred-by-multiple-loci
#12
Stefan Stender, Julia Kozlitina, Børge G Nordestgaard, Anne Tybjærg-Hansen, Helen H Hobbs, Jonathan C Cohen
Complex traits arise from the interplay between genetic and environmental factors. The actions of these factors usually appear to be additive, and few compelling examples of gene-environment synergy have been documented. Here we show that adiposity significantly amplifies the effect of three sequence variants (encoding PNPLA3 p.I148M, TM6SF2 p.E167K, and GCKR p.P446L) associated with nonalcoholic fatty liver disease (NAFLD). Synergy between adiposity and genotype promoted the full spectrum of NAFLD, from steatosis to hepatic inflammation to cirrhosis...
April 24, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28432057/imaging-and-modeling-of-acute-pressure-induced-changes-of-collagen-and-elastin-microarchitectures-in-pig-and-human-resistance-arteries
#13
Maria Bloksgaard, Thomas M Leurgans, Bart Spronck, Maarten Hg Heusinkveld, Bjarne Thorsted, Kristoffer Rosenstand, Inger Nissen, Ulla Melchior Hansen, Jonathan R Brewer, Luis A Bagatolli, Lars M Rasmussen, Akhmadjon Irmukhamedov, Koen D Reesink, Jo G R De Mey
The impact of disease related changes in the extracellular matrix (ECM) on the mechanical properties of human resistance arteries largely remains to be established. Resistance arteries from both pig and human parietal pericardium (PRA) display a different ECM microarchitecture compared to frequently used rodent mesenteric arteries. We hypothesized that the biaxial mechanics of PRA mirror pressure induced changes in the ECM microarchitecture. This was tested using isolated pig PRA as model system, integrating vital imaging, pressure myography and mathematical modeling...
April 21, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28430754/biomarkers-for-early-acute-kidney-injury-diagnosis-and-severity-prediction-a-pilot-multicenter-canadian-study-of-children-admitted-to-the-icu
#14
Jennifer Palermo, Allison B Dart, Alanna De Mello, Prasad Devarajan, Ronald Gottesman, Gonzalo Garcia Guerra, Greg Hansen, Ari R Joffe, Cherry Mammen, Nick Majesic, Catherine Morgan, Peter Skippen, Michael Pizzi, Ana Palijan, Michael Zappitelli
OBJECTIVE: Acute kidney injury occurs early in PICU admission and increases risks for poor outcomes. We evaluated the feasibility of a multicenter acute kidney injury biomarker urine collection protocol and measured diagnostic characteristics of urine neutrophil gelatinase-associated lipocalin, interleukin-18, and liver fatty acid binding protein to predict acute kidney injury and prolonged acute kidney injury. DESIGN: Prospective observational pilot cohort study...
April 20, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28429106/occupational-exposure-to-extremely-low-frequency-magnetic-fields-and-risk-for-central-nervous-system-disease-an-update-of-a-danish-cohort-study-among-utility-workers
#15
Camilla Pedersen, Aslak Harbo Poulsen, Naja Hulvej Rod, Patrizia Frei, Johnni Hansen, Kathrine Grell, Ole Raaschou-Nielsen, Joachim Schüz, Christoffer Johansen
PURPOSE: Evidence of whether exposure to extremely low-frequency magnetic fields (ELF-MF) is related to central nervous system diseases is inconsistent. This study updates a previous study of the incidence of such diseases in a large cohort of Danish utility workers by almost doubling the period of follow-up. METHODS: We investigated the risks for dementia, motor neurone disease, Parkinson disease, multiple sclerosis and epilepsy among 32,006 men employed at the 99 utility companies that supplied Denmark with electricity during the period 1900-1993...
April 20, 2017: International Archives of Occupational and Environmental Health
https://www.readbyqxmd.com/read/28427519/a-comprehensive-review-of-immunotherapies-in-prostate-cancer
#16
REVIEW
Manuel Caitano Maia, Aaron R Hansen
Prostate cancer is the second most common malignant neoplasm in men worldwide and the fifth cause of cancer-related death. Although multiple new agents have been approved for metastatic castration resistant prostate cancer over the last decade, it is still an incurable disease. New strategies to improve cancer control are needed and agents targeting the immune system have shown encouraging results in many tumor types. Despite being attractive for immunotherapies due to the expression of various tumor associated antigens, the microenvironment in prostate cancer is relatively immunosuppressive and may be responsible for the failures of various agents targeting the immune system in this disease...
May 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28423421/efficacy-of-some-wearable-devices-compared-with-spray-on-insect-repellents-for-the-yellow-fever-mosquito-aedes-aegypti-l-diptera-culicidae
#17
Stacy D Rodriguez, Hae-Na Chung, Kristina K Gonzales, Julia Vulcan, Yiyi Li, Jorge A Ahumada, Hector M Romero, Mario De La Torre, Fangjun Shu, Immo A Hansen
The current Zika health crisis in the Americas has created an intense interest in mosquito control methods and products. Mosquito vectors of Zika are of the genus Aedes, mainly the yellow fever mosquito, Aedes aegypti. L. The use of repellents to alter mosquito host seeking behavior is an effective method for the prevention of mosquito-borne diseases. A large number of different spray-on repellents and wearable repellent devices are commercially available. The efficacies of many repellents are unknown. This study focuses on the efficacy of eleven different repellents in reducing the number of Ae...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28422403/blood-chimerism-in-dizygotic-monochorionic-twins-during-five-years-observation
#18
Morten Hanefeld Dziegiel, Morten Høgh Hansen, Sofie Haedersdal, Angela Natalie Barrett, Klaus Rieneck, Katharina Maria Main, Anne Todsen Hansen, Frederik Banch Clausen
Dizygotic monochorionic twin pregnancies can result in blood chimerism due to in utero twin-to-twin exchange of stem cells. In this case, we examined the proportion of allogeneic red blood cells (RBCs) by flow cytometry and the proportion of allogeneic nucleated cells by digital PCR at seven months and again at five years. We found an increase in the proportion of allogeneic cells from 63% to 89% in one twin, and a similar increase in autologous cells in the other twin from 57% to 84%. A paradigm for stem cell therapy could be modelled on this case: induction of tolerance and chimerism by antenatal transfusion of donor stem cells...
April 19, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28420250/the-european-association-of-preventive-cardiology-exercise-prescription-in-everyday-practice-and-rehabilitative-training-expert-tool-a-digital-training-and-decision-support-system-for-optimized-exercise-prescription-in-cardiovascular-disease-concept-definitions
#19
Dominique Hansen, Paul Dendale, Karin Coninx, Luc Vanhees, Massimo F Piepoli, Josef Niebauer, Veronique Cornelissen, Roberto Pedretti, Eva Geurts, Gustavo R Ruiz, Ugo Corrà, Jean-Paul Schmid, Eugenio Greco, Constantinos H Davos, Frank Edelmann, Ana Abreu, Bernhard Rauch, Marco Ambrosetti, Simona S Braga, Olga Barna, Paul Beckers, Maurizio Bussotti, Robert Fagard, Pompilio Faggiano, Esteban Garcia-Porrero, Evangelia Kouidi, Michel Lamotte, Daniel Neunhäuserer, Rona Reibis, Martijn A Spruit, Christoph Stettler, Tim Takken, Cajsa Tonoli, Carlo Vigorito, Heinz Völler, Patrick Doherty
Background Exercise rehabilitation is highly recommended by current guidelines on prevention of cardiovascular disease, but its implementation is still poor. Many clinicians experience difficulties in prescribing exercise in the presence of different concomitant cardiovascular diseases and risk factors within the same patient. It was aimed to develop a digital training and decision support system for exercise prescription in cardiovascular disease patients in clinical practice: the European Association of Preventive Cardiology Exercise Prescription in Everyday Practice and Rehabilitative Training (EXPERT) tool...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28418004/host-determinants-of-expression-of-the-helicobacter-pylori-baba-adhesin
#20
Mary E Kable, Lori M Hansen, Cathy M Styer, Samuel L Deck, Olena Rakhimova, Anna Shevtsova, Kathryn A Eaton, Miriam E Martin, Pär Gideonsson, Thomas Borén, Jay V Solnick
Expression of the Helicobacter pylori blood group antigen binding adhesin A (BabA) is more common in strains isolated from patients with peptic ulcer disease or gastric cancer, rather than asymptomatic colonization. Here we used mouse models to examine host determinants that affect H. pylori BabA expression. BabA expression was lost by phase variation as frequently in WT mice as in RAG2-/- mice that do not have functional B or T cells, and in MyD88-/-, TLR2-/- and TLR4-/- mice that are defective in toll like receptor signaling...
April 18, 2017: Scientific Reports
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