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BMC Medicine

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https://www.readbyqxmd.com/read/28330469/preclinical-evaluation-of-a-tex101-protein-elisa-test-for-the-differential-diagnosis-of-male-infertility
#1
Dimitrios Korbakis, Christina Schiza, Davor Brinc, Antoninus Soosaipillai, Theano D Karakosta, Christine Légaré, Robert Sullivan, Brendan Mullen, Keith Jarvi, Eleftherios P Diamandis, Andrei P Drabovich
BACKGROUND: TEX101 is a cell membrane protein exclusively expressed by testicular germ cells and shed into seminal plasma. We previously verified human TEX101 as a biomarker for the differential diagnosis of azoospermia, and developed a first-of-its-kind TEX101 ELISA. To demonstrate the clinical utility of TEX101, in this work we aimed at evaluating ELISA performance in a large population of fertile, subfertile, and infertile men. METHODS: Mass spectrometry, size-exclusion chromatography, ultracentrifugation, and immunohistochemistry were used to characterize TEX101 protein as an analyte in seminal plasma...
March 23, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28327188/allopurinol-and-the-risk-of-ventricular-arrhythmias-in-the-elderly-a-study-using-us-medicare-data
#2
Jasvinder A Singh, John Cleveland
BACKGROUND: There are no published human studies investigating whether the use of allopurinol, the most commonly used medication for the treatment of hyperuricemia in gout, the most common type of inflammatory arthritis in adults, has any beneficial effects on ventricular electrophysiology. The objective of our study was to assess whether allopurinol use is associated with a reduction in the risk of ventricular arrhythmias (VA). METHODS: We used the 5% random sample of Medicare beneficiaries from 2006-2012 to examine new allopurinol use and the risk of incident VA...
March 22, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28320384/diagnostic-accuracy-incremental-yield-and-prognostic-value-of-determine-tb-lam-for-routine-diagnostic-testing-for-tuberculosis-in-hiv-infected-patients-requiring-acute-hospital-admission-in-south-africa-a-prospective-cohort
#3
Stephen D Lawn, Andrew D Kerkhoff, Rosie Burton, Charlotte Schutz, Andrew Boulle, Monica Vogt, Ankur Gupta-Wright, Mark P Nicol, Graeme Meintjes
BACKGROUND: We previously reported that one-third of HIV-positive adults requiring medical admission to a South African district hospital had laboratory-confirmed tuberculosis (TB) and that almost two-thirds of cases could be rapidly diagnosed using Xpert MTB/RIF-testing of concentrated urine samples obtained on the first day of admission. Implementation of urine-based, routine, point-of-care TB screening is an attractive intervention that might be facilitated by use of a simple, low-cost diagnostic tool, such as the Determine TB-LAM lateral-flow rapid test for HIV-associated TB...
March 21, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28316281/are-potentially-clinically-meaningful-benefits-misinterpreted-in-cardiovascular-randomized-trials-a-systematic-examination-of-statistical-significance-clinical-significance-and-authors-conclusions
#4
G Michael Allan, Caitlin R Finley, James McCormack, Vivek Kumar, Simon Kwong, Emelie Braschi, Christina Korownyk, Michael R Kolber, Adriennne J Lindblad, Oksana Babenko, Scott Garrison
BACKGROUND: While journals and reporting guidelines recommend the presentation of confidence intervals, many authors adhere strictly to statistically significant testing. Our objective was to determine what proportions of not statistically significant (NSS) cardiovascular trials include potentially clinically meaningful effects in primary outcomes and if these are associated with authors' conclusions. METHODS: Cardiovascular studies published in six high-impact journals between 1 January 2010 and 31 December 2014 were identified via PubMed...
March 20, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28316280/predicting-fitness-to-practise-events-in-international-medical-graduates-who-registered-as-uk-doctors-via-the-professional-and-linguistic-assessments-board-plab-system-a-national-cohort-study
#5
Paul A Tiffin, Lewis W Paton, Lazaro M Mwandigha, John C McLachlan, Jan Illing
BACKGROUND: International medical graduates working in the UK are more likely to be censured in relation to fitness to practise compared to home graduates. Performance on the General Medical Council's (GMC's) Professional and Linguistic Assessments Board (PLAB) tests and English fluency have previously been shown to predict later educational performance in this group of doctors. It is unknown whether the PLAB system is also a valid predictor of unprofessional behaviour and malpractice...
March 20, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28302128/news-from-the-melanoma-sessions-of-the-european-cancer-congress-2017
#6
EDITORIAL
Piotr Rutkowski, Katarzyna Kozak
During the European Cancer Congress, the melanoma sessions focused on practice changing trials. Recent developments and approvals in immunotherapy and targeted agents have significantly changed the landscape of melanoma therapy in the metastatic setting and provide great promise for adjuvant and neoadjuvant treatment in high-risk locoregional disease. Perioperative (combined pre- and postoperative) strategies may be extremely beneficial for patients with bulky stage IIIC disease. The long-term results of the European Organisation for Research and Treatment of Cancer (EORTC) 18071 adjuvant trial ipilimumab versus placebo after complete resection of high-risk stage III melanoma, demonstrating improvement in overall survival, has established the reference bar for further trials with postoperative therapy...
March 17, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28302126/systematic-meta-review-of-supported-self-management-for-asthma-a-healthcare-perspective
#7
Hilary Pinnock, Hannah L Parke, Maria Panagioti, Luke Daines, Gemma Pearce, Eleni Epiphaniou, Peter Bower, Aziz Sheikh, Chris J Griffiths, Stephanie J C Taylor
BACKGROUND: Supported self-management has been recommended by asthma guidelines for three decades; improving current suboptimal implementation will require commitment from professionals, patients and healthcare organisations. The Practical Systematic Review of Self-Management Support (PRISMS) meta-review and Reducing Care Utilisation through Self-management Interventions (RECURSIVE) health economic review were commissioned to provide a systematic overview of supported self-management to inform implementation...
March 17, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28298236/potential-predatory-and-legitimate-biomedical-journals-can-you-tell-the-difference-a-cross-sectional-comparison
#8
Larissa Shamseer, David Moher, Onyi Maduekwe, Lucy Turner, Virginia Barbour, Rebecca Burch, Jocalyn Clark, James Galipeau, Jason Roberts, Beverley J Shea
BACKGROUND: The Internet has transformed scholarly publishing, most notably, by the introduction of open access publishing. Recently, there has been a rise of online journals characterized as 'predatory', which actively solicit manuscripts and charge publications fees without providing robust peer review and editorial services. We carried out a cross-sectional comparison of characteristics of potential predatory, legitimate open access, and legitimate subscription-based biomedical journals...
March 16, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28298227/metabolomics-approaches-in-pancreatic-adenocarcinoma-tumor-metabolism-profiling-predicts-clinical-outcome-of-patients
#9
S Battini, F Faitot, A Imperiale, A E Cicek, C Heimburger, G Averous, P Bachellier, I J Namer
BACKGROUND: Pancreatic adenocarcinomas (PAs) have very poor prognoses even when surgery is possible. Currently, there are no tissular biomarkers to predict long-term survival in patients with PA. The aims of this study were to (1) describe the metabolome of pancreatic parenchyma (PP) and PA, (2) determine the impact of neoadjuvant chemotherapy on PP and PA, and (3) find tissue metabolic biomarkers associated with long-term survivors, using metabolomics analysis. METHODS: (1)H high-resolution magic angle spinning (HRMAS) nuclear magnetic resonance (NMR) spectroscopy using intact tissues was applied to analyze metabolites in PP tissue samples (n = 17) and intact tumor samples (n = 106), obtained from 106 patients undergoing surgical resection for PA...
March 16, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28292309/elimination-of-hepatitis-b-is-it-a-mission-possible
#10
REVIEW
Tai-Chung Tseng, Jia-Horng Kao
Chronic hepatitis B virus (HBV) infection is a global public health issue. Although the disease cannot be cured effectively, disease management has been improved over the past decade. The introduction of potent nucleos(t)ide analogues (NAs) to suppress viral replication represented a giant leap in the control of this disease. It has been shown that tenofovir treatment, a potent NA, complements current immunoprophylaxis to diminish mother-to-infant transmission in pregnant women with a high viral load. For patients with chronic HBV infection, quantitative hepatitis B surface antigen is a useful tool to define inactive carriers and to guide antiviral therapy...
March 15, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28292298/erratum-to-characteristics-and-knowledge-synthesis-approach-for-456-network-meta-analyses-a-scoping-review
#11
Wasifa Zarin, Areti Angeliki Veroniki, Vera Nincic, Afshin Vafaei, Emily Reynen, Sanober S Motiwala, Jesmin Antony, Shannon M Sullivan, Patricia Rios, Caitlin Daly, Joycelyne Ewusie, Maria Petropoulou, Adriani Nikolakopoulou, Anna Chaimani, Georgia Salanti, Sharon E Straus, Andrea C Tricco
No abstract text is available yet for this article.
March 14, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28288626/hepatitis-c-related-hepatocellular-carcinoma-in-the-era-of-new-generation-antivirals
#12
REVIEW
Thomas F Baumert, Frank Jühling, Atsushi Ono, Yujin Hoshida
Hepatitis C virus infection is a major cause of hepatocellular carcinoma worldwide. Interferon has been the major antiviral treatment, yielding viral clearance in approximately half of patients. New direct-acting antivirals substantially improved the cure rate to above 90%. However, access to therapies remains limited due to the high costs and under-diagnosis of infection in specific subpopulations, e.g., baby boomers, inmates, and injection drug users, and therefore, hepatocellular carcinoma incidence is predicted to increase in the next decades even in high-resource countries...
March 14, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28285592/successes-and-failures-what-did-we-learn-from-recent-first-line-treatment-immunotherapy-trials-in-non-small-cell-lung-cancer
#13
REVIEW
Jordi Remon, Benjamin Besse, Jean-Charles Soria
The immune checkpoint inhibitors have significantly modified the therapeutic landscape of advanced non-small cell lung cancer in second-line and, more recently, first-line settings. Because of the superior outcome with pembrolizumab as an upfront strategy, PD-L1 status should now be considered a new reflex biomarker for guiding first-line treatment in patients with advanced non-small cell lung cancer. Improved responses have also been reported with the combination of immune checkpoint inhibitors and chemotherapy as the first-line treatment; however, this strategy has not yet been validated by phase III trial data and its interplay with PD-L1 status still requires clarification...
March 13, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28279213/cardiovascular-risk-factors-are-major-determinants-of-thrombotic-risk-in-patients-with-the-lupus-anticoagulant
#14
Florian Posch, Johanna Gebhart, Jacob H Rand, Silvia Koder, Peter Quehenberger, Vittorio Pengo, Cihan Ay, Ingrid Pabinger
BACKGROUND: Patients with the lupus anticoagulant (LA) are at an increased risk of thrombotic events, which in turn increase the risk of death. Understanding the determinants of thrombotic risk in patients with LA may pave the way towards targeted thromboprophylaxis. In the Vienna Lupus Anticoagulant and Thrombosis Study (LATS), we systematically evaluate risk factors for thrombotic events in patients with LA. METHODS: We followed 150 patients (mean age: 41.3 years, female gender: n = 122 (81...
March 10, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28274264/a-unique-pattern-of-cortical-connectivity-characterizes-patients-with-attention-deficit-disorders-a-large-electroencephalographic-coherence-study
#15
Frank H Duffy, Aditi Shankardass, Gloria B McAnulty, Heidelise Als
BACKGROUND: Attentional disorders (ADD) feature decreased attention span, impulsivity, and over-activity interfering with successful lives. Childhood onset ADD frequently persists to adulthood. Etiology may be hereditary or disease associated. Prevalence is 5% but recognition may be 'overshadowed' by comorbidities (brain injury, mood disorder) thereby escaping formal recognition. Blinded diagnosis by MRI has failed. ADD may not itself manifest a single anatomical pattern of brain abnormality but may reflect multiple, unique responses to numerous and diverse etiologies...
March 9, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28270209/innovative-regenerative-medicines-in-the-eu-a-better-future-in-evidence
#16
EDITORIAL
Mark S Corbett, Andrew Webster, Robert Hawkins, Nerys Woolacott
BACKGROUND: Despite a steady stream of headlines suggesting they will transform the future of healthcare, high-tech regenerative medicines have, to date, been quite inaccessible to patients, with only eight having been granted an EU marketing licence in the last 7 years. Here, we outline some of the historical reasons for this paucity of licensed innovative regenerative medicines. We discuss the challenges to be overcome to expedite the development of this complex and rapidly changing area of medicine, together with possible reasons to be more optimistic for the future...
March 8, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28264723/developmental-pathways-to-adiposity-begin-before-birth-and-are-influenced-by-genotype-prenatal-environment-and-epigenome
#17
Xinyi Lin, Ives Yubin Lim, Yonghui Wu, Ai Ling Teh, Li Chen, Izzuddin M Aris, Shu E Soh, Mya Thway Tint, Julia L MacIsaac, Alexander M Morin, Fabian Yap, Kok Hian Tan, Seang Mei Saw, Michael S Kobor, Michael J Meaney, Keith M Godfrey, Yap Seng Chong, Joanna D Holbrook, Yung Seng Lee, Peter D Gluckman, Neerja Karnani
BACKGROUND: Obesity is an escalating health problem worldwide, and hence the causes underlying its development are of primary importance to public health. There is growing evidence that suboptimal intrauterine environment can perturb the metabolic programing of the growing fetus, thereby increasing the risk of developing obesity in later life. However, the link between early exposures in the womb, genetic susceptibility, and perturbed epigenome on metabolic health is not well understood...
March 7, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28260527/genetics-of-vascular-dementia-review-from-the-icvd-working-group
#18
REVIEW
M Arfan Ikram, Anna Bersano, Raquel Manso-Calderón, Jian-Ping Jia, Helena Schmidt, Lefkos Middleton, Benedetta Nacmias, Saima Siddiqi, Hieab H H Adams
BACKGROUND: Vascular dementia is a common disorder resulting in considerable morbidity and mortality. Determining the extent to which genes play a role in disease susceptibility and their pathophysiological mechanisms could improve our understanding of vascular dementia, leading to a potential translation of this knowledge to clinical practice. DISCUSSION: In this review, we discuss what is currently known about the genetics of vascular dementia. The identification of causal genes remains limited to monogenic forms of the disease, with findings for sporadic vascular dementia being less robust...
March 6, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28253922/counting-the-lives-saved-by-dots-in-india-a-model-based-approach
#19
Sandip Mandal, Vineet K Chadha, Ramanan Laxminarayan, Nimalan Arinaminpathy
BACKGROUND: Against the backdrop of renewed efforts to control tuberculosis (TB) worldwide, there is a need for improved methods to estimate the public health impact of TB programmes. Such methods should not only address the improved outcomes amongst those receiving care but should also account for the impact of TB services on reducing transmission. METHODS: Vital registration data in India are not sufficiently reliable for estimates of TB mortality. As an alternative approach, we developed a mathematical model of TB transmission dynamics and mortality, capturing the scale-up of DOTS in India, through the rollout of the Revised National TB Control Programme (RNTCP)...
March 3, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28249576/the-evaluating-self-management-and-educational-support-in-severely-obese-patients-awaiting-multidisciplinary-bariatric-care-evolution-trial-principal-results
#20
Raj S Padwal, Scott Klarenbach, Arya M Sharma, Miriam Fradette, Susan E Jelinski, Alun Edwards, Sumit R Majumdar
BACKGROUND: In Canada, demand for multidisciplinary bariatric (obesity) care far outstrips capacity. Consequently, prolonged wait times exist that contribute to substantial health impairments. A supportive, educational, self-management intervention (with in-person and web-based versions) for patients wait-listed for bariatric care has already been implemented in Northern and Central Alberta, Canada, but its effectiveness is unknown. The objective of this trial is to evaluate the clinical and economic outcomes of two self-management programs of varying intensity that are currently in use...
March 2, 2017: BMC Medicine
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