The search for a blood-based biomarker for Myalgic Encephalomyelitis/ Chronic Fatigue Syndrome (ME/CFS): from biochemistry to electrophysiology by Krista S. P. Clarke, Caroline C. Kingdon, Michael Pycraft Hughes, Eliana Mattos Lacerda, Rebecca Lewis, Emily J. Kruchek, Robert A. Dorey, Fatima H. Labeed

“…Abstract Background Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a disease of unknown aetiology characterised by symptoms of post-exertional malaise (PEM) and fatigue leading to substantial impairment in functioning. …”
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Evidence of Helicobacter spp. in Saliva and Gastric Mucosa of Domestic Dogs in the Central Region of Rio Grande do Sul, Brazil by Daniel D. Guerra Segundo, Camila B. E. Mello, Juliana F. Cargnelutti, Mariana M. Flores, Luís F. Pedrotti, Bernardo N. Antunes, Vanessa Milech, Omar G. Velasquez, Letícia R. Martins, Saulo T. L. Pinto Filho

“…Helicobacter pylori is a spiral-shaped bacterium, which plays a role in the aetiology of gastric diseases in humans. Non-H. pylori Helicobacter (NHPH) species naturally colonise the stomach of animals and also induce gastric lesions in humans, highlighting their zoonotic importance. …”
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The clinical utility of tissue polymerase chain reaction, tissue culture and tissue histology in blood culture-negative infective endocarditis in South Africa – insights from the G... by W Endres, P Mkoko, M Ntsekhe

“…Tissue PCR identified an aetiological agent in 17/27 (63%) cases, with Bartonella spp. (12/27, 44%) being the most common organism. …”
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Characterization of heart failure patients with reverse left ventricular remodelling post‐angiotensin receptor blockers/neprilysin inhibitors therapy by Leonid Maizels, Yishay Wasserstrum, Boris Fishman, Amitai Segev, David Ben‐Nun, Anan Younis, Dov Freimark, Israel Mazin, Avishay Grupper

“…Subgroup analysis revealed several parameters associated with significant LVEF improvement, including baseline LVEF <30%, non‐ischaemic HF aetiology, lack of cardiac resynchronization therapy (CRT), better initial functional class and ARNI initiation within 3 years from HF diagnosis (P ≤ 0.001 for all). …”
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Lymphatic leaks – success of intranodal lymphangiogram first strategy by Alan Campbell, Diana Velazquez-Pimentel, Matthew Seager, Richard Hesketh, Julian Hague, Jowad Raja, Jocelyn Brookes, An Ngo, Miles Walkden, Anthie Papadopoulou, Daron Smith, Borzoueh Mohammadi, Ravi Barod, Mohammed Rashid Akhtar, Jimmy Kyaw Tun, Deborah Elise Low, Ian Daniel Renfrew, Tim Fotheringham, Conrad von Stempel

“…No statistically significant correlation between the site of leakage, aetiology or embolisation technique correlated with clinical success. …”
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Cardiovascular outcomes associated with treatment of type 2 diabetes in patients with ischaemic heart failure by Thomas R. Godec, Daniel I. Bromage, Mar Pujades‐Rodriguez, Antonio Cannatà, Arturo Gonzalez‐Izquierdo, Spiros Denaxas, Harry Hemingway, Ajay M. Shah, Derek M. Yellon, Theresa A. McDonagh

“…We compared outcomes of patients with T2DM and HF of ischaemic aetiology according to antidiabetic treatment. Methods and results This study used linked data from primary care, hospital admissions, and death registries for 4.7 million inhabitants in England, as part of the CALIBER resource. …”
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Vascular involvement in idiopathic pulmonary fibrosis by Michele Mondoni, Rocco Rinaldo, Christopher J. Ryerson, Cristina Albrici, Andrea Baccelli, Claudio Tirelli, Francesca Marchetti, Jacopo Cefalo, Giulia Nalesso, Giulia Ferranti, Fausta Alfano, Giovanni Sotgiu, Marco Guazzi, Stefano Centanni

“…Background Idiopathic pulmonary fibrosis (IPF) is a chronic, fibrosing and progressive interstitial lung disease of unknown aetiology with a pathogenesis still partly unknown. …”
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Cost efficiency of inpatient rehabilitation following acquired brain injury: the first international adaptation of the UK approach by Ian D Cameron, Julie Ratcliffe, Ian Cameron, Belinda Gabbe, Rachel Milte, Ciara Ryan, Karen Roberts, Zhibin Chen, Russell Gruen, Laura Jolliffe, Natasha A Lannin, Peter Hunter, Maria Crotty, Lynne Turner-Stokes, Lisa Cameron, David Attwood, Anne Holland, Jacqui Morarty, Lynne Turner Stokes, Christine Latimer, Dina Watterson, John Rabling, Melanie Reed, Mithu Palit, Troy Huggins, Verna Smith, Elizabeth O’Shannessy, Rebecca Nicks, Alison Gehrig, Katelyn Moloney, Sophie O’Keefe, Megan Coulter, Margaret Inches, Erin Gee, Sue McLellan

“…Inclusion criteria consisted of complete outcome measures recorded on admission and discharge, total n=196, mean age 44.6 years (range 17–78), males:females 72:28%, aetiology:trauma n=124 (63%), stroke n=42 (21%), diffuse n=18 (9%) and other-mixed n=12 (7%).Interventions Specialist inpatient multidisciplinary rehabilitation.Outcome measures Dependency and care costs: Northwick Park Dependency Scale/Care Needs Assessment (NPCNA); Functional independence: UK Functional Assessment Measure. …”
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Importance of infarct topography in determination of stroke mechanism and recurrence risk: a post-hoc analysis of the dabigatran acute treatment of stroke trial by Michael D Hill, Ken Butcher, Kelvin Ng, Mukul Sharma, Shelagh B Coutts, Brian H Buck, Thalia Field, Erol Cimen, Laura C Gioia, Jodi Miller, Oscar R Benavente

“…The relative risk of recurrent infarction in patients with undetermined aetiology was increased compared with other categories (standardised coefficient=1.0 (0.1, 1.9), p=0.029). …”
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Transfer of dysbiotic gut microbiota has beneficial effects on host liver metabolism by Simon Nicolas, Vincent Blasco‐Baque, Audren Fournel, Jerome Gilleron, Pascale Klopp, Aurelie Waget, Franck Ceppo, Alysson Marlin, Roshan Padmanabhan, Jason S Iacovoni, François Tercé, Patrice D Cani, Jean‐François Tanti, Remy Burcelin, Claude Knauf, Mireille Cormont, Matteo Serino

“…Our findings provide a new perspective on gut microbiota dysbiosis, potentially useful to better understand the aetiology of metabolic diseases.…”
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Psychiatric comorbidities in epilepsy: population co-occurrence, genetic correlations and causal effects by Neil M Davies, Dheeraj Rai, Harriet Forbes, Christina Dalman, Torbjörn Tomson, Daniel Berglind, Michael Lundberg, Cecilia Magnusson, Craig Newschaffer, Brian K Lee, Viktor H Ahlqvist, Paul Madley-Dowd, Christina Dardani, Jessica Rast, Caichen Zhong, Renee M Gardner, Kristen Lyall

“…We then used summary data from genome-wide association studies to investigate whether the identified observational associations could be attributed to a shared underlying genetic aetiology using cross-trait linkage disequilibrium score regression. …”
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Thrombus composition and its implication in ischemic stroke assessment and revascularization treatments by Juan Marta-Enguita, Florencio J.D. Machado, Josune Orbe, Roberto Muñoz

“…Development: Thrombotic pathways involved in the different vascular beds share common mechanisms, causing difficulties in the identification of specific patterns associated with stroke aetiology. However, other factors such as clot formation time, associated inflammatory status, or activation of additional immune and coagulation pathways (neutrophil extracellular trap [NET] delivery, platelet aggregation, endothelial activation, and von Willebrand Factor release) have been described as determinants in thrombus characteristics. …”
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Pulmonary artery catheter use in acute myocardial infarction‐cardiogenic shock by Saraschandra Vallabhajosyula, Aditi Shankar, Sri Harsha Patlolla, Abhiram Prasad, Malcolm R. Bell, Jacob C. Jentzer, Shilpkumar Arora, Saarwaani Vallabhajosyula, Bernard J. Gersh, Allan S. Jaffe, David R. Holmes Jr, Shannon M. Dunlay, Gregory W. Barsness

“…Admissions with concomitant cardiac surgery or non‐AMI aetiology for cardiogenic shock were excluded. The outcomes of interest were in‐hospital mortality, resource utilization, and temporal trends in cohorts with and without PAC use. …”
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Wits Transplant Unit Annual Report 2022: Adult and paediatric liver transplantation by E U Wessels, K Kinandu, M Beretta, S Berkenfeld, B Bobat, L Brannigan, R Britz, D Demopoulos, L Doedens, P Gaylard, H Maher, A Mahomed, V Mudau, D Parbhoo, S Rambarran, M Reynders, F van der Schyff, B Ströbele, J Fabian, J Loveland

“…In the paediatric population, the most common aetiologies for both pretransplant candidates and transplant recipients remained cholestatic disease and acute liver failure. …”
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Associations of FTO and MC4R Variants with Obesity Traits in Indians and the Role of Rural/Urban Environment as a Possible Effect Modifier by A. E. Taylor, M. N. Sandeep, C. S. Janipalli, C. Giambartolomei, D. M. Evans, M. V. Kranthi Kumar, D. G. Vinay, P. Smitha, V. Gupta, M. Aruna, S. Kinra, R. M. Sullivan, L. Bowen, N. J. Timpson, G. Davey Smith, F. Dudbridge, D. Prabhakaran, Y. Ben-Shlomo, K. S. Reddy, S. Ebrahim, G. R. Chandak

“…In the context of rapid urbanisation, resulting in significant lifestyle changes, understanding the aetiology of obesity is important. We investigated associations of FTO and MC4R variants with obesity traits in 3390 sibling pairs from four Indian cities, most of whom were discordant for current dwelling (rural or urban). …”
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Clinical Recommendations of Russian Gastroenterological Association and RENDO Endoscopic Society on Diagnosis and Treatment of Gastritis and Duodenitis by V. T. Ivashkin, I. V. Maev, T. L. Lapina, E. D. Fedorov, A. A. Sheptulin, A. S. Trukhmanov, A. V. Kononov, R. A. Abdulkhakov, O. P. Alexeeva, S. A. Alekseenko, D. N. Andreev, E. K. Baranskaya, N. N. Dekhnich, I. L. Klyaritskaya, R. S. Kozlov, E. A. Kogan, M. P. Korolev, N. V. Korochanskaya, S. A. Kurilovich, M. A. Livsan, M. F. Osipenko, P. V. Pavlov, S. S. Pirogov, A. S. Sarsenbaeva, V. I. Simanenkov, A. S. Tertychny, A. V. Tkachev, Yu. P. Uspensky, I. B. Khlynov, V. V. Tsukanov

“…The recommendations condense current knowledge on the aetiology and pathogenesis of gastritis and duodenitis, as well as laboratory and instrumental diagnostic techniques, main approaches to aetiological H. pylori eradication and treatment of dyspeptic states.…”
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The Protective Role of HLA-DRB113 in Autoimmune Diseases by Andreia Bettencourt, Cláudia Carvalho, Bárbara Leal, Sandra Brás, Dina Lopes, Ana Martins da Silva, Ernestina Santos, Tiago Torres, Isabel Almeida, Fátima Farinha, Paulo Barbosa, António Marinho, Manuela Selores, João Correia, Carlos Vasconcelos, Paulo P. Costa, Berta Martins da Silva

“…Autoimmune diseases (AIDs) are characterized by a multifactorial aetiology and a complex genetic background, with the MHC region playing a major role. …”
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Association of chronic heart failure with mortality in old intensive care patients suffering from Covid‐19 by Raphael Romano Bruno, Bernhard Wernly, Georg Wolff, Jesper Fjølner, Antonio Artigas, Bernardo Bollen Pinto, Joerg C. Schefold, Detlef Kindgen‐Milles, Philipp Heinrich Baldia, Malte Kelm, Michael Beil, Sigal Sviri, Peter Vernon vanHeerden, Wojciech Szczeklik, Arzu Topeli, Muhammed Elhadi, Michael Joannidis, Sandra Oeyen, Eumorfia Kondili, Brian Marsh, Finn H. Andersen, Rui Moreno, Susannah Leaver, Ariane Boumendil, Dylan W. De Lange, Bertrand Guidet, Hans Flaatten, Christian Jung, COVIP study group

“…More patients suffered from pre‐existing ischaemic than from non‐ischaemic disease [233 vs. 328 patients (n = 5 unknown aetiology)]. There were no differences in baseline characteristics between ischaemic and non‐ischaemic disease or between HFrEF, HFmrEF, and HFpEF. …”
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Genetic insights into psychotic major depressive disorder: bridging the mood-psychotic disorder spectrumResearch in context by Thuy-Dung Nguyen, Joeri J. Meijsen, Robert Sigström, Ralf Kuja-Halkola, Ying Xiong, Arvid Harder, Kaarina Kowalec, Joëlle A. Pasman, Carolina Scarpa, Elin Hörbeck, Lina Jonsson, Sara Hägg, Niamh Mullins, Kevin S. O’Connell, Christina Dalman, Dorte Helenius, Richard Zetterberg, Henrik Larsson, Paul Lichtenstein, Ole A. Andreassen, Thomas Werge, Alfonso Buil, Mikael Landén, Patrick F. Sullivan, Yi Lu

“…These findings advance our understanding of the aetiology of psychotic MDD and contribute to the limited body of evidence on this phenotype by utilising large-scale population-based data. …”
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Interplay between oxidative stress, neuroinflammatory cytokines and melatonin in Alzheimer's disease: Insights from cerebrospinal fluid analysis by Francisco Artime-Naveda, David Hevia, Rebeca Alonso-Arias, Carmen Martínez, Isabel Quirós-González, Rafael Cernuda-Cernuda, Alejando Alvarez-Artime, Iván Menéndez-Valle, Rosa M. Sainz, Juan C. Mayo

“…Other factors previously associated with the aetiology of AD, including redox indicators or proinflammatory biomarkers, were also included. …”
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