67,508 results match your criteria: "e Clinical R&D[Affiliation]"

Haemonchus contortus is a gastrointestinal parasite that affects ruminants (cattle, sheep, etc.), having a significant welfare impact worldwide. The rise of anthelmintic resistance poses a growing challenge to adequate control, compromising the success of treatments.

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Aim: Breast cancer is the second most common cancer among women and the leading cause of cancer-related mortality in this population. Numerous factors have been identified as either risk factors or protective factors for breast cancer. However, the role of Vitamin D (Vit.

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Abelacimab versus Rivaroxaban in Patients with Atrial Fibrillation.

N Engl J Med

January 2025

From the TIMI Study Group, Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston (C.T.R., S.M.P., R.P.G., D.A.M., J.F.K., E.L.G., S.A.M., S.D.W., M.S.S.); Anthos Therapeutics, Cambridge, MA (B.H., S.P., D.B.); the Heart Rhythm Center, Taipei Veterans General Hospital and Cardiovascular Center, Taipei, Taiwan (S.-A.C.); Taichung Veterans Hospital, Taichung, Taiwan (S.-A.C.); National Yang Ming Chiao Tung University, Hsinchu, Taiwan (S.-A.C.); National Chung Hsing University, Taichung, Taiwan (S.-A.C.); St. Michael's Hospital, Unity Health Toronto, Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto (S.G.G.); Canadian VIGOUR Centre, University of Alberta, Edmonton, Canada (S.G.G.); the Division of Cardiology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea (B.J.); the Department of Cardiology, Central Hospital of Northern Pest-Military Hospital, Budapest, Hungary (R.G.K.); the Heart and Vascular Center, Semmelweis University, Budapest, Hungary (R.G.K.); the Internal Cardiology Department, St. Ann University Hospital and Masaryk University, Brno, Czech Republic (J.S.); the Department of Cardiology and Structural Heart Diseases, Medical University of Silesia, Katowice, Poland (W.W.); the Departments of Medicine and of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada (J.W.); and the Thrombosis and Atherosclerosis Research Institute, Hamilton, ON, Canada (J.W.).

Background: Abelacimab is a fully human monoclonal antibody that binds to the inactive form of factor XI and blocks its activation. The safety of abelacimab as compared with a direct oral anticoagulant in patients with atrial fibrillation is unknown.

Methods: Patients with atrial fibrillation and a moderate-to-high risk of stroke were randomly assigned, in a 1:1:1 ratio, to receive subcutaneous injection of abelacimab (150 mg or 90 mg once monthly) administered in a blinded fashion or oral rivaroxaban (20 mg once daily) administered in an open-label fashion.

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Perioperative Chemotherapy or Preoperative Chemoradiotherapy in Esophageal Cancer.

N Engl J Med

January 2025

From Bielefeld University, Medical School and University Medical Center Ostwestfalen-Lippe, Campus Hospital Lippe, Detmold, Germany (J.H.); the Department of Radiation Oncology, Medical University of Graz, Graz, Austria (T.B.); the Clinical Trials Unit, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany (C.S.); the Institute of Surgical Pathology, University Medical Center Freiburg, Germany (P.B.); the Department of Surgery, University Medical Center Schleswig-Holstein-Campus Lübeck, Lübeck, Germany (B.K., T.K.); Comprehensive Cancer Center Augsburg, Faculty of Medicine, University of Augsburg, Augsburg, Germany (R.C.); the Department of General and Visceral Surgery, University Medical Center Freiburg, Freiburg, Germany (S.U.); the Department of General, Visceral, and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (J.R.I.); the Department of Gastrointestinal Surgery, IRCCS San Raffaele Scientific Institute and San Raffaele Vita-Salute University, Milan (I.G.); the Department of General, Visceral, Thoracic, and Endocrine Surgery, Johannes Wesling University Hospital Minden, Ruhr University Bochum, Minden, Germany (B.G.); the Department of General, Visceral, and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany (M.G.); the Department of General, Visceral, Thoracic, Transplantation, and Pediatric Surgery, University Medical Center Schleswig-Holstein-Campus Kiel, Kiel, Germany (B.R.); the Department of General, Visceral, Transplantation, Vascular, and Pediatric Surgery, University Hospital, University of Würzburg, Würzburg, Germany (J.F.L.); the Department of General, Visceral, Cancer, and Transplantation Surgery, University Hospital of Cologne, Cologne, Germany (C.B.); the Department of Hematology and Oncology, Sana Klinikum Offenbach, Offenbach am Main, Germany (E.R.); the Department of Surgery, Klinikum Dortmund, Klinikum der Universität Witten-Herdecke, Dortmund, Germany (M.S.); the Department of Surgery, University Hospital Magdeburg, Magdeburg, Germany (F.B.); the Department of Medicine I, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany (G.F.); the Department of Hematology, Oncology, and Cancer Immunology, Charité-University Medicine Berlin, Campus Virchow-Klinikum, Berlin (P.T.-P.); the Department of General, Visceral, Cancer, and Transplantation Surgery, University Hospital Essen, Essen, Germany (U.P.N.); the Department of General, Visceral, and Transplantation Surgery, University Hospital Muenster, Muenster, Germany (A.P.); the Department of Radiotherapy and Oncology, Goethe University Frankfurt, University Hospital, Frankfurt, Germany (D.I.); the Division of Gastroenterology, Rheumatology, and Infectology, Department of Medicine, Charité-Universitätsmedizin Berlin, Berlin (S.D.); the Department of Surgery, Robert Bosch Hospital, Stuttgart, Germany (T.S.); the Department of Surgery, University Medical Center Erlangen, Friedrich Alexander University Erlangen-Nürnberg, Erlangen, Germany (C.K.); the Department of Medicine II, Saarland University Medical Center, Saarland University, Homburg, Germany (S.Z.); the Department of General, Visceral, and Transplant Surgery, Ludwig Maximilian University Hospital, Munich, Germany (J.W.); the Department of Internal Medicine I, Klinikum Mutterhaus der Borromaerinnen, Trier, Germany (R.M.); the Departments of Hematology, Oncology, and Palliative Care, Klinikum Stuttgart, Stuttgart, Germany (G.I.); the Department of General, Visceral, and Transplant Surgery, University Medical Center Mainz, Mainz, Germany (P.G.); and the Department of Medicine II, University Cancer Center Leipzig, Cancer Center Central Germany, University Medical Center Leipzig, Leipzig, Germany (F.L.).

Background: The best multimodal approach for resectable locally advanced esophageal adenocarcinoma is unclear. An important question is whether perioperative chemotherapy is preferable to preoperative chemoradiotherapy.

Methods: In this phase 3, multicenter, randomized trial, we assigned in a 1:1 ratio patients with resectable esophageal adenocarcinoma to receive perioperative chemotherapy with FLOT (fluorouracil, leucovorin, oxaliplatin, and docetaxel) plus surgery or preoperative chemoradiotherapy (radiotherapy at a dose of 41.

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Clinical Evaluation of 3D Motion-Correction Via Scout Accelerated Motion Estimation and Reduction Framework Versus Conventional T1-Weighted MRI at 1.5 T in Brain Imaging.

Invest Radiol

January 2025

From the Department of Neuroradiology, University Medical Center Mainz, Johannes Gutenberg University, Mainz, Germany (L.S.L., K.H.H., A.K., M.A.B., S.A., A.E.O.); Institute of Medical Biostatistics, Epidemiology, and Informatics, University Medical Center Mainz, Johannes Gutenberg University, Mainz, Germany (R.H.P.); and Siemens Healthineers AG, Forchheim, Germany (D.P., D.N.S.).

Objectives: The aim of this study was to investigate the occurrence of motion artifacts and image quality of brain magnetic resonance imaging (MRI) T1-weighted imaging applying 3D motion correction via the Scout Accelerated Motion Estimation and Reduction (SAMER) framework compared with conventional T1-weighted imaging at 1.5 T.

Materials And Methods: A preliminary study involving 14 healthy volunteers assessed the impact of the SAMER framework on induced motion during 3 T MRI scans.

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Non-alcoholic fatty liver disease (NAFLD) is a highly prevalent chronic liver condition characterized by excessive hepatic fat accumulation. Early diagnosis is crucial as NAFLD can progress to more severe conditions like steatohepatitis, fibrosis, cirrhosis, and hepatocellular carcinoma without timely intervention. While liver biopsy remains the gold standard for NAFLD assessment, abdominal ultrasound (US) imaging has emerged as a widely adopted non-invasive modality due to convenience and low cost.

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Aim: The aim of the study is to determine sac volume based on radiological examinations in patients undergoing surgery for myelomeningocele (MMC) and to investigate the relationship of sac volume with hydrocephalus and Chiari malformation type 2 (CM) with a view to determining the optimum length of follow-up and recommend a treatment plan.

Material And Methods: The present study involved the retrospective review of radiologic examinations and medical files of 81 patients who underwent surgery for myelomeningocele between 2015 and 2022 in the neurosurgery clinic of Ankara Training and Research Hospital. Then, MMC sac volumes were measured and the statistical relationship of these measurements with the Evans Index, progressive enlargement of the ventricles after sac repair and CM was investigated.

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Gut Microbiota Metabolites Sensed by Host GPR41/43 Protect Against Hypertension.

Circ Res

January 2025

Hypertension Research Laboratory, School of Biological Sciences (R.R.M., T.Z., E.D., L.X., A.B.-W., H.A.J., M.N., M.P., K.C.L., W.Q., J.A.O.D., F.Z.M.).

Background: Fermentation of dietary fiber by the gut microbiota leads to the production of metabolites called short-chain fatty acids, which lower blood pressure and exert cardioprotective effects. Short-chain fatty acids activate host signaling responses via the functionally redundant receptors GPR41 and GPR43, which are highly expressed by immune cells. Whether and how these receptors protect against hypertension or mediate the cardioprotective effects of dietary fiber remains unknown.

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Background: Hypotensive episodes detected by 24-hour ambulatory blood pressure (BP) monitoring capture daily cumulative hypotensive stress and could be clinically relevant to cognitive impairment, but this relationship remains unclear.

Methods: We included participants from the Systolic Blood Pressure Intervention Trial (receiving intensive or standard BP treatment) who had 24-hour ambulatory BP monitoring measured near the 27-month visit and subsequent biannual cognitive assessments. We evaluated the associations of hypotensive episodes (defined as systolic BP drops of ≥20 mm Hg between 2 consecutive measurements that reached <100 mm Hg) and hypotensive duration (cumulative time of systolic BP <100 mm Hg) with subsequent cognitive function using adjusted linear mixed models.

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Family Screening in Patients With Dilated and Arrhythmogenic Cardiomyopathy: The Road Toward Gene-Specific Recommendations.

Circ Genom Precis Med

January 2025

Department of Cardiology, Cardiovascular Research Institute Maastricht, Maastricht University, the Netherlands (S.L.V.M.S., N.J.B., M.F.G.H.M.V., V.P.M.v.E., J.A.J.V.).

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Sphingosine-1-Phosphate, a Marker of Endothelial Injury and Disease Severity in Preeclampsia.

Hypertension

January 2025

Division of Obstetrics and Gynecology, Institute of Clinical Sciences Lund, Lund University, Sweden. (C.E., F.P., L.E., S.R.H.).

Background: Preeclampsia is a hypertensive pregnancy disorder marked by endothelial damage. Healthy endothelium is covered by a protective glycocalyx layer, which, when degraded, releases detectable products into the blood. Sphingosine-1-phosphate (S1P) is a cardiovascular biomarker involved in glycocalyx preservation, linked to placentation and preeclampsia development.

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Background: Plasma NT-proBNP (N-terminal pro-B-type natriuretic peptide) is commonly used to diagnose heart failure with preserved ejection fraction (HFpEF), but its diagnostic performance in the ambulatory/outpatient setting is unknown because previous studies lacked objective reference standards.

Methods: Among patients with chronic dyspnea, diagnosis of HFpEF or noncardiac dyspnea was determined conclusively by exercise catheterization in a derivation cohort (n=414), multicenter validation cohort 1 (n=560), validation cohort 2 (n=207), and a nonobese Japanese validation cohort 3 (n=77). Optimal NT-proBNP cut points for HFpEF rule out (optimizing sensitivity) and rule in (optimizing specificity) were derived and tested, stratified by obesity and atrial fibrillation.

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Background: Despite fractional flow reserve (FFR)-guided deferral of revascularization, recurrent events in patients with diabetes or after myocardial infarction remain common. This study aimed to assess the association between FFR-negative but high-risk nonculprit lesions and clinical outcomes.

Methods: This is a patient-level pooled analysis of the prospective natural-history COMBINE (OCT-FFR) study (Optical Coherence Tomography Morphologic and Fractional Flow Reserve Assessment in Diabetes Mellitus Patients) and PECTUS-obs study (Identification of Risk Factors for Acute Coronary Events by OCT After STEMI and NSTEMI Patients With Residual Non- Flow Limiting Lesions).

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Background: Electrically evoked compound action potential (ECAP) can be used to measure the auditory nerve's response to electrical stimulation in cochlear implant (CI) users. In the Nurotron CI system, extracting the ECAP waveform from the stimulus artifact is time-consuming.

Method: We developed a new paradigm ("FastCAP") for use with Nurotron CI devices.

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C-X-C chemokine receptor type 5CD8 T cells as immune regulators in hepatitis Be antigen-positive chronic hepatitis B under interferon-alpha treatment.

World J Gastroenterol

January 2025

Institute of Hepatology and Department of Infectious Diseases, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan Province, China.

Background: C-X-C chemokine receptor type 5 (CXCR5)CD8 T cells represent a unique immune subset with dual roles, functioning as cytotoxic cells in persistent viral infections while promoting B cell responses. Despite their importance, the specific role of CXCR5CD8 T cells in chronic hepatitis B (CHB), particularly during interferon-alpha (IFN-α) treatment, is not fully understood. This study aims to elucidate the relationship between CXCR5CD8 T cells and sustained serologic response (SR) in patients undergoing 48 weeks of pegylated IFN-α (peg-IFN-α) treatment for CHB.

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Background: Circulating cell-free tumor DNA (ctDNA) provides a non-invasive approach for assessing somatic alterations. The German PRAEGNANT registry study aims to explore molecular biomarkers and investigate their integration into clinical practice. In this context, ctDNA testing was included to understand the motivations of clinicians to initiate testing, to identify somatic alterations, and to assess the clinical impact of the results obtained.

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Cost-Benefit Analysis of in vivo Reflectance Confocal Microscopy for Melanoma Diagnosis in a Real-World Clinical Setting.

Risk Manag Healthc Policy

January 2025

Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Dermatology Clinic, Sapienza University of Rome, Rome, Italy.

Background: In a recent prospective, multicenter, two-arm randomized controlled trial (RCT), we demonstrated that adjunctive reflectance confocal microscopy (RCM) in routine clinical practice provides clinical benefits, including safe melanoma detection and a 43.3% reduction in the number needed to excise (NNE).

Methods: A cost-benefit analysis was conducted based on NNEs for standard care (5.

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Demographic influences on Lithuanian physicians' attitudes toward medical assistance in dying: a cross-sectional study.

Front Psychiatry

January 2025

The Centre for Health Ethics, Law and History, Faculty of Medicine, Institute of Health Sciences, Vilnius University, Vilnius, Lithuania.

Background: The topic of end-of-life decisions is important due to aging populations and the rising number of terminal illnesses like cancer. As more people experience suffering, the ethical, medical, and legal debates of these decisions become significant to healthcare policy. Understanding medical professionals' attitudes is critical for shaping responsible practices and legislation surrounding end-of-life care.

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Understanding the downstream consequences of initial Medicare plan selection is necessary to ensure access to and affordability of health care services, especially for older adults with serious illness. We used 2008-2020 data from the Health and Retirement Study to estimate financial and health burden by initial Medicare plan selection (traditional Medicare without supplemental coverage, traditional Medicare plus supplemental coverage, or Medicare Advantage) and self-reported history of cancer. Initially choosing benefits with greater financial protections (either traditional Medicare plus supplemental coverage or Medicare Advantage) relative to traditional Medicare without supplemental coverage was associated with lower levels of out-of-pocket spending and a lower likelihood of reporting cost-related medication nonadherence and fair or poor health.

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Background: For clinical implementation of Alzheimer's disease (AD) blood-based biomarkers (BBMs), knowledge of short-term variability, is crucial to ensure safe and correct biomarker interpretation, i.e., to capture changes or treatment effects that lie beyond that of expected short-term variability and considered clinically relevant.

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Background: A new circulating biomarker superior to carbohydrate antigen 19-9 (CA19-9) is needed for diagnosing pancreatobiliary cancer (PBca). The aim of this study was to identify serum microRNA (miRNA) signatures comprising reproducible and disease-related miRNAs.

Methods: This multicenter study involved patients with treatment-naïve PBca and healthy participants.

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Patients with estrogen receptor-positive (ER+), human epidermal growth factor receptor 2-negative (HER2-) primary breast cancer (BC) have low pathological complete response (pCR) rates with neoadjuvant chemotherapy. A subset of ER+/HER2- BC contains dense lymphocytic infiltration. We hypothesized that addition of an anti-programmed death 1 agent may increase pCR rates in this BC subtype.

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Objectives: To estimate tumour volume doubling time (TVDT) of interval cancers (ICs).

Methods: Two radiologists retrospectively reviewed prior screening and diagnostic mammograms and measured mean diameter on "visible" ICs. Univariate analyses of clinicopathological variables (ER, HER2, grade, age at diagnosis, and breast density) were undertaken, and those with p < 0.

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Objective: To identify MRI features of desmoid tumors (DTs) that predict the growth of residual disease following ablation.

Methods: Patients who underwent MRI-guided ablation for DTs between February 2013 and April 2021 were included in this single-center IRB-approved retrospective study. MRI scans assessed three suspicious tissue features: intermediate T2 signal [+iT2], nodular appearance [+NOD], and contrast enhancement [+ENH].

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