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Beausejour JP, Knowles KS, Wilson AT, Mangum LC, Hill EC, Hanney WJ, Wells AJ, Fukuda DH, Stout J, Stock MS. Innovations in the Assessment of Skeletal Muscle Health: A Glimpse into the Future. Int J Sports Med 2024. [PMID: 38198822 DOI: 10.1055/a-2242-3226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Skeletal muscle is the largest organ system in the human body and plays critical roles in athletic performance, mobility, and disease pathogenesis. Despite growing recognition of its importance by major health organizations, significant knowledge gaps remain regarding skeletal muscle health and its crosstalk with nearly every physiological system. Relevant public health challenges like pain, injury, obesity, and sarcopenia underscore the need to accurately assess skeletal muscle health and function. Feasible, non-invasive techniques that reliably evaluate metrics including muscle pain, dynamic structure, contractility, circulatory function, body composition, and emerging biomarkers are imperative to unraveling the complexities of skeletal muscle. Our concise review highlights innovative or overlooked approaches for comprehensively assessing skeletal muscle in vivo. We summarize recent advances in leveraging dynamic ultrasound imaging, muscle echogenicity, tensiomyography, blood flow restriction protocols, molecular techniques, body composition, and pain assessments to gain novel insight into muscle physiology from cellular to whole-body perspectives. Continued development of precise, non-invasive tools to investigate skeletal muscle are critical in informing impactful discoveries in exercise and rehabilitation science.
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Affiliation(s)
- Jonathan P Beausejour
- Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, Orlando, FL, United States
| | - Kevan S Knowles
- Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, Orlando, FL, United States
| | - Abigail T Wilson
- Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, Orlando, FL, United States
| | - L Colby Mangum
- Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, Orlando, FL, United States
| | - Ethan C Hill
- Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, Orlando, FL, United States
| | - William J Hanney
- Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, Orlando, FL, United States
| | - Adam J Wells
- Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, Orlando, FL, United States
| | - David H Fukuda
- Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, Orlando, FL, United States
| | - JeffreyR Stout
- Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, Orlando, FL, United States
| | - Matt S Stock
- Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, Orlando, FL, United States
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Alexdottir MS, Pehrsson M, Domislovic V, Godskesen LE, Krag A, Kjeldsen J, Brinar M, Barisic A, Bay-Jensen AC, Karsdal MA, Krznaric Z, Mortensen JH. Neutrophil-mediated type IV collagen degradation is elevated in patients with mild endoscopic ulcerative colitis reflecting early mucosal destruction. Sci Rep 2024; 14:1641. [PMID: 38238446 PMCID: PMC10796406 DOI: 10.1038/s41598-024-52208-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 01/16/2024] [Indexed: 01/22/2024] Open
Abstract
Neutrophils play a significant role in sustaining chronic inflammation in Inflammatory Bowel Disease. The intestinal basement membrane acts as a barrier for immunological homeostasis, where the α3 and α4 chains of type IV collagen are expressed on the mucosal surface. We wanted to develop a biomarker reflecting early tissue injury, providing an opportunity for intervention. Two competitive enzyme-linked immunosorbent assays (ELISAs) quantifying human neutrophil elastase (HNE) degraded neo-epitopes of COL4A3 and COL4A4 were developed and investigated in two observational cohorts (n = 161, n = 100). A biomarker of MMP-mediated degradation of COL4A1 (C4M) was used for comparison. In Cohort 1, patients with mild endoscopic ulcerative colitis showed elevated levels of C4A3-HNE compared to those with severe disease. C4M had a strong positive correlation with disease activity. C4A3-HNE/C4M provided superior discrimination between mild and severe endoscopic disease and negatively correlated to disease activity. In Cohort 2, C4A4-HNE and C4A4-HNE/C4M showed similar trends. C4A3-HNE and C4A4-HNE possibly reflect early intestinal tissue injury. Combining the markers with a biomarker of another α-chain of the same collagen provides information on two distinct stages of mucosal damage. These biomarkers may be used to monitor disease flare-up in patients in remission, reducing the need for frequent endoscopic procedures.
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Affiliation(s)
- Marta S Alexdottir
- Department of Biomarkers and Research, Nordic Bioscience, 2370, Herlev, Denmark.
| | - Martin Pehrsson
- Department of Biomarkers and Research, Nordic Bioscience, 2370, Herlev, Denmark
| | - Viktor Domislovic
- Department of Gastroenterology and Hepatology, University Hospital Center Zagreb, Zagreb, Croatia
| | - Line E Godskesen
- Research Unit of Medical Gastroenterology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
- Department of Medical Gastrointestinal Diseases, Odense University Hospital, Odense, Denmark
| | - Aleksander Krag
- Research Unit of Medical Gastroenterology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
- Department of Medical Gastrointestinal Diseases, Odense University Hospital, Odense, Denmark
| | - Jens Kjeldsen
- Research Unit of Medical Gastroenterology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
- Department of Medical Gastrointestinal Diseases, Odense University Hospital, Odense, Denmark
| | - Marko Brinar
- Department of Gastroenterology and Hepatology, University Hospital Center Zagreb, Zagreb, Croatia
- School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Ana Barisic
- Department of Gastroenterology and Hepatology, University Hospital Center Zagreb, Zagreb, Croatia
| | | | - Morten A Karsdal
- Department of Biomarkers and Research, Nordic Bioscience, 2370, Herlev, Denmark
| | - Zeljko Krznaric
- Department of Gastroenterology and Hepatology, University Hospital Center Zagreb, Zagreb, Croatia
- School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Joachim H Mortensen
- Department of Biomarkers and Research, Nordic Bioscience, 2370, Herlev, Denmark
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Ni W, Breitner S, Nikolaou N, Wolf K, Zhang S, Peters A, Herder C, Schneider A. Effects of Short- And Medium-Term Exposures to Lower Air Temperature on 71 Novel Biomarkers of Subclinical Inflammation: Results from the KORA F4 Study. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:12210-12221. [PMID: 37552838 PMCID: PMC10448716 DOI: 10.1021/acs.est.3c00302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 07/26/2023] [Accepted: 07/26/2023] [Indexed: 08/10/2023]
Abstract
Increasing evidence has revealed that exposure to low temperatures is linked to a higher risk of chronic diseases and death; however, the mechanisms underlying the observed associations are still poorly understood. We performed a cross-sectional analysis with 1115 participants from the population-based KORA F4 study, which was conducted in Augsburg, Germany, from 2006 to 2008. Seventy-one inflammation-related protein biomarkers were analyzed in serum using proximity extension assay technology. We employed generalized additive models to explore short- and medium-term effects of air temperature on biomarkers of subclinical inflammation at cumulative lags of 0-1 days, 2-6 days, 0-13 days, 0-27 days, and 0-55 days. We found that short- and medium-term exposures to lower air temperature were associated with higher levels in 64 biomarkers of subclinical inflammation, such as Protein S100-A12 (EN-RAGE), Interleukin-6 (IL-6), Interleukin-10 (IL-10), C-C motif chemokine 28 (CCL28), and Neurotrophin-3 (NT-3). More pronounced associations between lower air temperature and higher biomarker of subclinical inflammation were observed among older participants, people with cardiovascular disease or prediabetes/diabetes, and people exposed to higher levels of air pollution (PM2.5, NO2, and O3). Our findings provide intriguing insight into how low air temperature may cause adverse health effects by activating inflammatory pathways.
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Affiliation(s)
- Wenli Ni
- Institute
of Epidemiology, Helmholtz Zentrum München
- German Research Center for Environmental Health (GmbH), Neuherberg D-85764, Germany
- Institute
for Medical Information Processing, Biometry, and Epidemiology, Pettenkofer
School of Public Health, LMU Munich, Munich 81377, Germany
| | - Susanne Breitner
- Institute
of Epidemiology, Helmholtz Zentrum München
- German Research Center for Environmental Health (GmbH), Neuherberg D-85764, Germany
- Institute
for Medical Information Processing, Biometry, and Epidemiology, Pettenkofer
School of Public Health, LMU Munich, Munich 81377, Germany
| | - Nikolaos Nikolaou
- Institute
of Epidemiology, Helmholtz Zentrum München
- German Research Center for Environmental Health (GmbH), Neuherberg D-85764, Germany
- Institute
for Medical Information Processing, Biometry, and Epidemiology, Pettenkofer
School of Public Health, LMU Munich, Munich 81377, Germany
| | - Kathrin Wolf
- Institute
of Epidemiology, Helmholtz Zentrum München
- German Research Center for Environmental Health (GmbH), Neuherberg D-85764, Germany
| | - Siqi Zhang
- Institute
of Epidemiology, Helmholtz Zentrum München
- German Research Center for Environmental Health (GmbH), Neuherberg D-85764, Germany
| | - Annette Peters
- Institute
of Epidemiology, Helmholtz Zentrum München
- German Research Center for Environmental Health (GmbH), Neuherberg D-85764, Germany
- Institute
for Medical Information Processing, Biometry, and Epidemiology, Pettenkofer
School of Public Health, LMU Munich, Munich 81377, Germany
- German
Center for Diabetes Research (DZD), München-Neuherberg, Munich D-85764, Germany
- German Centre
for Cardiovascular Research (DZHK), Partner
Site Munich Heart Alliance, Munich 80802, Germany
| | - Christian Herder
- Institute
for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University
Düsseldorf, Düsseldorf 40225, Germany
- Division
of Endocrinology and Diabetology, Medical Faculty and University Hospital
Düsseldorf, Heinrich Heine University
Düsseldorf, Düsseldorf 40204, Germany
- German
Center for Diabetes Research (DZD), München-Neuherberg, Munich D-85764, Germany
| | - Alexandra Schneider
- Institute
of Epidemiology, Helmholtz Zentrum München
- German Research Center for Environmental Health (GmbH), Neuherberg D-85764, Germany
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Sharma VK, Singh TG, Mehta V, Mannan A. Biomarkers: Role and Scope in Neurological Disorders. Neurochem Res 2023; 48:2029-2058. [PMID: 36795184 DOI: 10.1007/s11064-023-03873-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 01/19/2023] [Accepted: 01/21/2023] [Indexed: 02/17/2023]
Abstract
Neurological disorders pose a great threat to social health and are a major cause for mortality and morbidity. Effective drug development complemented with the improved drug therapy has made considerable progress towards easing symptoms associated with neurological illnesses, yet poor diagnosis and imprecise understanding of these disorders has led to imperfect treatment options. The scenario is complicated by the inability to extrapolate results of cell culture studies and transgenic models to clinical applications which has stagnated the process of improving drug therapy. In this context, the development of biomarkers has been viewed as beneficial to easing various pathological complications. A biomarker is measured and evaluated in order to gauge the physiological process or a pathological progression of a disease and such a marker can also indicate the clinical or pharmacological response to a therapeutic intervention. The development and identification of biomarkers for neurological disorders involves several issues including the complexity of the brain, unresolved discrepant data from experimental and clinical studies, poor clinical diagnostics, lack of functional endpoints, and high cost and complexity of techniques yet research in the area of biomarkers is highly desired. The present work describes existing biomarkers for various neurological disorders, provides support for the idea that biomarker development may ease our understanding underlying pathophysiology of these disorders and help to design and explore therapeutic targets for effective intervention.
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Affiliation(s)
- Vivek Kumar Sharma
- Chitkara College of Pharmacy, Chitkara University, Chandigarh, Punjab, 140401, India.,Government College of Pharmacy, Rohru, Shimla, Himachal Pradesh, 171207, India
| | - Thakur Gurjeet Singh
- Chitkara College of Pharmacy, Chitkara University, Chandigarh, Punjab, 140401, India.
| | - Vineet Mehta
- Government College of Pharmacy, Rohru, Shimla, Himachal Pradesh, 171207, India
| | - Ashi Mannan
- Chitkara College of Pharmacy, Chitkara University, Chandigarh, Punjab, 140401, India
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Yong SJ. Long COVID or post-COVID-19 syndrome: putative pathophysiology, risk factors, and treatments. Infect Dis (Lond) 2021; 53:737-754. [PMID: 34024217 PMCID: PMC8146298 DOI: 10.1080/23744235.2021.1924397] [Citation(s) in RCA: 555] [Impact Index Per Article: 185.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 04/16/2021] [Accepted: 04/26/2021] [Indexed: 02/08/2023] Open
Abstract
Long COVID or post-COVID-19 syndrome first gained widespread recognition among social support groups and later in scientific and medical communities. This illness is poorly understood as it affects COVID-19 survivors at all levels of disease severity, even younger adults, children, and those not hospitalized. While the precise definition of long COVID may be lacking, the most common symptoms reported in many studies are fatigue and dyspnoea that last for months after acute COVID-19. Other persistent symptoms may include cognitive and mental impairments, chest and joint pains, palpitations, myalgia, smell and taste dysfunctions, cough, headache, and gastrointestinal and cardiac issues. Presently, there is limited literature discussing the possible pathophysiology, risk factors, and treatments in long COVID, which the current review aims to address. In brief, long COVID may be driven by long-term tissue damage (e.g. lung, brain, and heart) and pathological inflammation (e.g. from viral persistence, immune dysregulation, and autoimmunity). The associated risk factors may include female sex, more than five early symptoms, early dyspnoea, prior psychiatric disorders, and specific biomarkers (e.g. D-dimer, CRP, and lymphocyte count), although more research is required to substantiate such risk factors. While preliminary evidence suggests that personalized rehabilitation training may help certain long COVID cases, therapeutic drugs repurposed from other similar conditions, such as myalgic encephalomyelitis or chronic fatigue syndrome, postural orthostatic tachycardia syndrome, and mast cell activation syndrome, also hold potential. In sum, this review hopes to provide the current understanding of what is known about long COVID.
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Affiliation(s)
- Shin Jie Yong
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Subang Jaya, Malaysia
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