33 results match your criteria: "Institute of Medicine at the Sahlgrenska Academy[Affiliation]"

Objective: The objective of this study was to study the recovery from, and incidence of, work-restricting musculoskeletal pain after bariatric surgery compared with usual obesity care.

Methods: Pain in different body regions was monitored using questionnaires in the nonrandomized, prospective, controlled Swedish Obese Subjects (SOS) study, which included 2007 participants treated with bariatric surgery and a matched control group of 2040 participants receiving usual obesity care at primary health care centers. Self-reported pain in the neck and shoulders, back, hips, knees, and ankles was captured from questionnaires administered at baseline and after 1, 2, 3, 4, 6, 8, 10, 15, and 20 years.

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Reaching for connection: a qualitative study of communication and interaction in video-based physiotherapy.

Physiother Theory Pract

December 2024

Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden.

Objective: Digital technology has become increasingly relevant in physiotherapy, but little is known about communication and interaction in video-based physiotherapy. Therefore, this study aimed to explore the experiences among patients and physiotherapists, of communication and interaction in digital, video-based physiotherapy.

Methods: A qualitative interview study with a phenomenological approach was conducted.

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MIBlood-EV: Minimal information to enhance the quality and reproducibility of blood extracellular vesicle research.

J Extracell Vesicles

December 2023

Laboratory of Experimental Clinical Chemistry, and Amsterdam Vesicle Center, Amsterdam UMC, location AMC, Amsterdam, Netherlands.

Blood is the most commonly used body fluid for extracellular vesicle (EV) research. The composition of a blood sample and its derivatives (i.e.

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Circulating antieosinophil antibodies (AEOSA) have been associated with various autoimmune conditions affecting the liver, kidneys, lungs, and joints but are not part of routine clinical diagnostics. While analyzing human sera for antineutrophil cytoplasmic antibodies (ANCA) by indirect immunofluorescence (IIF) on granulocytes, 0.8% of analyzed samples were found to be reactive with eosinophils.

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Bariatric surgery, osteoarthritis and arthroplasty of the hip and knee in Swedish Obese Subjects - up to 31 years follow-up of a controlled intervention study.

Osteoarthritis Cartilage

May 2023

Department of Molecular and Clinical Medicine, Institute of Medicine at the Sahlgrenska Academy, Gothenburg, Sweden; Region of Västra Götaland, NU Hospital Group, Department of Clinical Physiology, Trollhättan, Sweden. Electronic address:

Objective: To study the long-term effect of obesity and bariatric surgery on incidences of osteoarthritis and arthroplasty of hip and knee.

Design: Hazard ratios (HR) and incidence rates (IR) of osteoarthritis and arthroplasty of hip and knee were studied in the prospective, controlled, non-randomized Swedish Obese Subjects (SOS) study (bariatric surgery group, n = 2007; matched controls given usual obesity care, n = 2040) and the SOS reference cohort (n = 1135, general population). Osteoarthritis diagnosis and arthroplasty for osteoarthritis were captured from the National Swedish Patient Register.

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Background We sought to determine the role of obesity in adolescent men on development of atrial fibrillation (AF) and subsequent associated clinical outcomes in subjects diagnosed with AF. Methods and Results We conducted a nationwide, register-based, cohort study of 1 704 467 men (mean age, 18.3±0.

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Purpose: Recognition of congestion and hypoperfusion in patients with chronic left ventricular dysfunction (LVD) has therapeutic and prognostic implications. In the present study we hypothesized that a multiparameter echocardiographic grading of right ventricular dysfunction (RVD) can facilitate the characterization of hemodynamic profiles.

Methods: Consecutive patients (n = 105, age 53 ± 14 years, males 77%, LV ejection fraction 28 ± 11%) referred for heart transplant or heart failure work-up, with catheterization and echocardiography within 48 h, were reviewed retrospectively.

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Objective: Adipose tissue is a specialized endocrine organ that is involved in modulating whole-body energy homeostasis and expresses a specific subset of genes, which may play a role in adipose tissue metabolism. The aim of this study was to search for novel adipose tissue-specific genes using a tissue panel of RNAseq expression profiles.

Methods: RNAseq expression profiles from 53 human tissues were downloaded from the GTex database.

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Aims: Grading right ventricular dysfunction (RVD) in patients with left ventricular (LV) disease has earned little attention. In the present study, we established an echocardiographic RVD score and investigated how increments of the score correspond to RVD at right heart catheterization.

Methods And Results: We included 95 patients with LV disease consecutively referred for heart transplant or heart failure work-up with catheterization and echocardiography within 48 h.

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Multi-omics links IL-6 trans-signalling with neutrophil extracellular trap formation and infection in COPD.

Eur Respir J

October 2021

Translational Science and Experimental Medicine, Research and Early Development, Respiratory and Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden

Background: Interleukin (IL)-6 trans-signalling (IL-6TS) is emerging as a pathogenic mechanism in chronic respiratory diseases; however, the drivers of IL-6TS in the airways and the phenotypic characteristic of patients with increased IL-6TS pathway activation remain poorly understood.

Objective: Our aim was to identify and characterise COPD patients with increased airway IL-6TS and to elucidate the biological drivers of IL-6TS pathway activation.

Methods: We used an IL-6TS-specific sputum biomarker profile (soluble IL-6 receptor (sIL-6R), IL-6, IL-1β, IL-8, macrophage inflammatory protein-1β) to stratify sputum data from patients with COPD (n=74; Biomarkers to Target Antibiotic and Systemic Corticosteroid Therapy in COPD Exacerbation (BEAT-COPD)) by hierarchical clustering.

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Isolation and characterization of extracellular vesicle subpopulations from tissues.

Nat Protoc

March 2021

Krefting Research Centre, Institute of Medicine at the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.

Extracellular vesicles (EVs) are lipid bilayered membrane structures released by all cells. Most EV studies have been performed by using cell lines or body fluids, but the number of studies on tissue-derived EVs is still limited. Here, we present a protocol to isolate up to six different EV subpopulations directly from tissues.

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The Airway Epithelium-A Central Player in Asthma Pathogenesis.

Int J Mol Sci

November 2020

Krefting Research Centre, Institute of Medicine at the Sahlgrenska Academy, University of Gothenburg, 405 30 Gothenburg, Sweden.

Asthma is a chronic inflammatory airway disease characterized by variable airflow obstruction in response to a wide range of exogenous stimuli. The airway epithelium is the first line of defense and plays an important role in initiating host defense and controlling immune responses. Indeed, increasing evidence indicates a range of abnormalities in various aspects of epithelial barrier function in asthma.

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A novel mechanism of action was described for the protease-activated receptor 4 (PAR4)-derived pepducin (P4Pal), when it was shown to exhibit inhibitory efficacy towards G protein coupling to multiple Gαq-coupled receptors (Carr, R., 3rd et al., Mol.

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Background: Asthma is a common and heterogeneous disease that includes subgroups characterized by type 2 (T2) or type 17 (T17) immune responses for which there is a need to identify the underlying mechanisms and biomarkers in order to develop specific therapies. These subgroups can be defined by airway epithelium gene signatures and the airway epithelium has also been implicated to play a significant role in asthma pathology. Extracellular vesicles (EVs) carry functional biomolecules and participate in cell-to-cell communication in both health and disease, properties that are likely to be involved in airway diseases such as asthma.

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Background: In the airways, mast cells are present in close vicinity to epithelial cells, and they can interact with each other via multiple factors, including extracellular vesicles (EVs). Mast cell-derived EVs have a large repertoire of cargos, including proteins and RNA, as well as surface DNA. In this study, we hypothesized that these EVs can induce epithelial to mesenchymal transition (EMT) in airway epithelial cells.

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Isolation and characterization of microvesicles from mesenchymal stem cells.

Methods

May 2020

Department of Pharmaceutical Sciences, Sue and Bill Gross Stem Cell Research Center, Chao Family Comprehensive Cancer Center, Edwards Life Sciences Center for Advanced Cardiovascular Technology, Department of Biomedical Engineering, and Department of Biological Chemistry, University of California, Irvine, CA 92697, USA. Electronic address:

Mesenchymal stem or stromal cells are currently under clinical investigation for multiple diseases. While their mechanism of action is still not fully elucidated, vesicles secreted by MSCs are believed to recapitulate their therapeutic potentials to some extent. Microvesicles (MVs), also called as microparticles or ectosome, are among secreted vesicles that could transfer cytoplasmic cargo, including RNA and proteins, from emitting (source) cells to recipient cells.

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Extracellular vesicles have the capacity to transfer lipids, proteins, and nucleic acids between cells, thereby influencing the recipient cell's phenotype. While the role of RNAs in EVs has been extensively studied, the function of DNA remains elusive. Here, we distinguished novel heterogeneous subpopulations of small extracellular vesicles (sEVs) based on their DNA content and topology.

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There is an increasing interest in exploring clinically relevant information that is present in body fluids, and extracellular vesicles (EVs) are intrinsic components of body fluids ("liquid biopsies"). In this report, we will focus on blood. Blood contains not only EVs but also cells, and non-EV particles including lipoproteins.

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. Skeletal muscle perfusion during walking relies on complex interactions between cardiac activity and vascular control mechanisms, why cardiac dysfunction may contribute to intermittent claudication (IC) symptoms. The study aims were to describe cardiac function at rest and during stress in consecutive IC patients, to explore the relations between cardiac function parameters and treadmill performance, and to test the hypothesis that clinically silent myocardial ischemia during stress may contribute to IC limb symptomatology.

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Mapping Extracellular RNA Sheds Lights on Distinct Carriers.

Cell

April 2019

Krefting Research Centre, Institute of Medicine at the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden. Electronic address:

Circulating extracellular RNA can participate in cell-to-cell communication and can be used as a marker of disease. Currently, biological and technical variability prevents the field from reaching its full potential. In this issue of Cell and the April 24 issue of Cell Systems, three studies by the Extracellular RNA Communication Consortium (ERCC) (Murillo et al.

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Expression of GHR and Downstream Signaling Genes in Human Adipose Tissue-Relation to Obesity and Weight Change.

J Clin Endocrinol Metab

May 2019

Department of Molecular and Clinical Medicine, Institute of Medicine at the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.

Context: GH is a strong regulator of metabolism. In obesity, both GH secretion and adipose tissue GHR gene expression are decreased. More detailed information on the regulation of GHR, STAT3/5, and downstream-regulated genes in human adipose tissue during diet-induced weight loss and weight gain is lacking.

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The melanocortin-1 receptor (MC1R) in podocytes has been suggested as the mediator of the ACTH renoprotective effect in patients with nephrotic syndrome with the mechanism of action beeing stabilization of the podocyte actin cytoskeleton. To understand how melanocortin receptors are regulated in nephrotic syndrome and how they are involved in restoration of filtration barrier function, melanocortin receptor expression was evaluated in patients and a rat model of nephrotic syndrome in combination with cell culture analysis. Phosphoproteomics was applied and identified MC1R pathways confirmed using biochemical analysis.

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Overweight, stunting, and concurrent overweight and stunting observed over 3 years in Vietnamese children.

Glob Health Action

May 2019

b Section for Epidemiology and Social Medicine (EPSO), Department of Public Health and Community Medicine , Institute of Medicine at the Sahlgrenska Academy, University of Gothenburg, Gothenburg , Sweden.

Background: Malnutrition, both stunting and overweight/obesity, present a public health concern in many countries in the world.

Objective: This study aims to examine: (1) longitudinal changes in prevalence of overweight, stunting, and concurrent overweight and stunting among preschool children during 3 years and (2) secular changes in these prevalences of a specific age group of children aged 5.5-6.

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International Variations in Amputation Practice: A VASCUNET Report.

Eur J Vasc Endovasc Surg

September 2018

Department of Vascular Medicine, University Heart Centre Hamburg, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany.

Objectives: To study international differences in incidence and practice patterns as well as time trends in lower limb amputations related to peripheral arterial disease and/or diabetes mellitus.

Methods: Data on lower limb amputations during 2010-2014 were collected from population based administrative data from countries in Europe and Australasia participating in the VASCUNET collaboration. Amputation rates, time trends, in hospital or 30 day mortality and reimbursement systems were analysed.

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Ascending aorta (AA) flow displacement (FD) is a surrogate for increased wall shear stress. We prospectively studied the flow profile in the AA in patients with aortic regurgitation (AR), to identify predictors of FD and investigate whether magnetic resonance imaging (MRI) phase-contrast flow rate curves (PC-FRC) contain quantitative information related to FD. Forty patients with chronic moderate (n = 14) or severe (n = 26) AR (21 (53%) with bicuspid aortic valve) and 22 controls were investigated.

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