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Etayo-Urtasun P, Sáez de Asteasu ML, Izquierdo M. Effects of Exercise on DNA Methylation: A Systematic Review of Randomized Controlled Trials. Sports Med 2024:10.1007/s40279-024-02033-0. [PMID: 38839665 DOI: 10.1007/s40279-024-02033-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/06/2024] [Indexed: 06/07/2024]
Abstract
BACKGROUND Regular exercise reduces chronic disease risk and extends a healthy lifespan, but the underlying molecular mechanisms remain unclear. DNA methylation is implicated in this process, potentially altering gene expression without changing DNA sequence. However, previous findings appear partly contradictory. OBJECTIVE This review aimed to elucidate exercise effects on DNA methylation patterns. METHODS PubMed, Scopus and Web of Science databases were searched following PRISMA 2020 guidelines. All articles published up to November 2023 were considered for inclusion and assessed for eligibility using the PICOS (Population, Intervention, Comparison, Outcomes and Study) framework. Randomized controlled trials that assessed the impact of exercise interventions on DNA methylation in previously inactive adults were included. We evaluated the methodological quality of trials using the PEDro scale. RESULTS A total of 852 results were identified, of which 12 articles met the inclusion criteria. A total of 827 subjects were included in the studies. Intervention lengths varied from 6 weeks to 12 months. Most trials indicated that exercise interventions can significantly alter the DNA methylation of specific genes and global DNA methylation patterns. CONCLUSIONS The heterogeneity of results may arise from differences in participant demographics, intervention factors, measurement techniques, and the genomic contexts examined. Future research should analyze the influences of activity type, intensity, and duration, as well as the physical fitness outcomes on DNA methylation. Characterizing such dose-response relationships and identifying genes responsive to exercise are crucial for understanding the molecular mechanisms of exercise, unlocking its full potential for disease prevention and treatment.
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Affiliation(s)
| | - Mikel L Sáez de Asteasu
- Navarrabiomed, Pamplona, Spain
- Department of Health Sciences, Hospital Universitario de Navarra (HUN)-Universidad Pública de Navarra (UPNA), IdiSNA, Av. De Barañain s/n, 31008, Pamplona, Navarra, Spain
- CIBER of Frailty and Healthy Aging (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
| | - Mikel Izquierdo
- Navarrabiomed, Pamplona, Spain.
- Department of Health Sciences, Hospital Universitario de Navarra (HUN)-Universidad Pública de Navarra (UPNA), IdiSNA, Av. De Barañain s/n, 31008, Pamplona, Navarra, Spain.
- CIBER of Frailty and Healthy Aging (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain.
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Van Eijgen J, Schuhmann V, Fingerroos EL, Renier M, Burchert H, Kröpfl JM, Van Craenenbroeck A, Cornelissen V, Gugleta K, Stalmans I, Hanssen H. High-intensity interval training in patients with glaucoma (HIT-GLAUCOMA): protocol for a multicenter randomized controlled exercise trial. Front Physiol 2024; 15:1349313. [PMID: 38818519 PMCID: PMC11137214 DOI: 10.3389/fphys.2024.1349313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 04/04/2024] [Indexed: 06/01/2024] Open
Abstract
Background Glaucoma stands as a prominent global cause of irreversible blindness and the primary treatment approach involves reducing intraocular pressure (IOP). However, around one-third of patients exhibit disease progression despite effective IOP reduction. Microvascular endothelial function, chronic inflammation, and oxidative stress are known to affect retinal neuronal networks and have been associated with disease severity and progression. Exercise training has the potential to counteract these mechanisms as add-on treatment to usual care. Aims The HIT-GLAUCOMA study will investigate the effects of a 6-month high-intensity interval training (HIIT) on intermediate endpoints such as local retinal microvascular and systemic large artery function, inflammation, and oxidative stress as well as clinical endpoints such as visual field indices, optic nerve rim assessment, retinal nerve fiber layer thickness, IOP, number of eye drops, vision-related quality of life and ocular surface disease symptomatology. Methods The study is a multi-center randomized controlled clinical trial in patients with both normal tension and high-tension primary open angle glaucoma. Across two study centers, 128 patients will be enrolled and randomized on a 1:1 basis into an exercise intervention group and a usual care control group. The primary microvascular endpoints are retinal arteriolar and venular flicker light-induced dilation at 6 months. The primary endpoint in the systemic circulation is brachial artery flow-mediated dilation at 6 months. Anticipated results We hypothesize that exercise therapy will improve retinal microvascular function and thus ocular blood flow in patients with glaucoma. As clinical outcomes, we will investigate the effect of exercise on visual field indices, optic nerve rim assessment, retinal nerve fiber layer thickness, IOP, number of eye drops, vision-related quality of life and ocular surface disease symptomatology. Discussion HIT-GLAUCOMA is a blueprint trial design to study the effect of exercise training on neurodegenerative and cardiovascular diseases. Importantly, patients are also expected to benefit from improvements in general health and cardiovascular co-morbidities. If proven effective, exercise may offer a new add-on treatment strategy to slow glaucoma progression. Clinical Trial Registration Number The trial is registered at Clinicaltrials.gov under the identifier NCT06058598 and is currently in the recruitment stage.
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Affiliation(s)
- Jan Van Eijgen
- Department of Ophthalmology, University Hospitals UZ Leuven, Leuven, Belgium
- Research Group Ophthalmology, Department of Neurosciences, Leuven, Belgium
| | - Valentin Schuhmann
- Department of Sports, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Emma-Liina Fingerroos
- Department of Sports, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Marie Renier
- Research Group of Rehabilitation of Internal Disorders, Department of Rehabilitation Sciences, Faculty of Movement and Rehabilitation Sciences, Leuven, Belgium
| | - Holger Burchert
- Department of Sports, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Julia Maria Kröpfl
- Department of Sports, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Amaryllis Van Craenenbroeck
- Division of Nephrology, University Hospitals UZ Leuven, Leuven, Belgium
- Nephrology and Renal Transplantation Research Group, Department of Microbiology, Immunology, and Transplantation, Leuven, Belgium
| | - Véronique Cornelissen
- Research Group of Rehabilitation of Internal Disorders, Department of Rehabilitation Sciences, Faculty of Movement and Rehabilitation Sciences, Leuven, Belgium
| | | | - Ingeborg Stalmans
- Department of Ophthalmology, University Hospitals UZ Leuven, Leuven, Belgium
- Research Group Ophthalmology, Department of Neurosciences, Leuven, Belgium
| | - Henner Hanssen
- Department of Sports, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
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Carrard J, Hofer M, Prechtl L, Fleischlin E, Huber M, Gallart-Ayala H, Teav T, Infanger D, Höchsmann C, Koehler K, Hinrichs T, Hanssen H, Ivanisevic J, Schmidt-Trucksäss A. Effect of an eight-week high-intensity interval training programme on circulating sphingolipid levels in middle-aged adults at elevated cardiometabolic risk (SphingoFIT)-Protocol for a randomised controlled exercise trial. PLoS One 2024; 19:e0302477. [PMID: 38717997 PMCID: PMC11078397 DOI: 10.1371/journal.pone.0302477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Accepted: 04/03/2024] [Indexed: 05/12/2024] Open
Abstract
INTRODUCTION Evidence indicates that sphingolipid accumulation drives complex molecular alterations promoting cardiometabolic diseases. Clinically, it was shown that sphingolipids predict cardiometabolic risk independently of and beyond traditional biomarkers such as low-density lipoprotein cholesterol. To date, little is known about therapeutic modalities to lower sphingolipid levels. Exercise, a powerful means to prevent and treat cardiometabolic diseases, is a promising modality to mitigate sphingolipid levels in a cost-effective, safe, and patient-empowering manner. METHODS This randomised controlled trial will explore whether and to what extent an 8-week fitness-enhancing training programme can lower serum sphingolipid levels of middle-aged adults at elevated cardiometabolic risk (n = 98, 50% females). The exercise intervention will consist of supervised high-intensity interval training (three sessions weekly), while the control group will receive physical activity counselling based on current guidelines. Blood will be sampled early in the morning in a fasted state before and after the 8-week programme. Participants will be provided with individualised, pre-packaged meals for the two days preceding blood sampling to minimise potential confounding. An 'omic-scale sphingolipid profiling, using high-coverage reversed-phase liquid chromatography coupled to tandem mass spectrometry, will be applied to capture the circulating sphingolipidome. Maximal cardiopulmonary exercise tests will be performed before and after the 8-week programme to assess patient fitness changes. Cholesterol, triglycerides, glycated haemoglobin, the homeostatic model assessment for insulin resistance, static retinal vessel analysis, flow-mediated dilatation, and strain analysis of the heart cavities will also be assessed pre- and post-intervention. This study shall inform whether and to what extent exercise can be used as an evidence-based treatment to lower circulating sphingolipid levels. TRIAL REGISTRATION The trial was registered on www.clinicaltrials.gov (NCT06024291) on August 28, 2023.
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Affiliation(s)
- Justin Carrard
- Division of Sport and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
- SportAdo Centre, Children and Adolescent Surgery, Woman-Mother-Child Department, Lausanne University Hospital, Lausanne, Switzerland
| | - Manuel Hofer
- Division of Sport and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Luisa Prechtl
- Division of Sport and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Eva Fleischlin
- Division of Sport and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Manuel Huber
- Division of Sport and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Hector Gallart-Ayala
- Metabolomics Platform, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Tony Teav
- Metabolomics Platform, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Denis Infanger
- Division of Sport and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Christoph Höchsmann
- Department of Health and Sport Sciences, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Karsten Koehler
- Department of Health and Sport Sciences, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Timo Hinrichs
- Division of Sport and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Henner Hanssen
- Division of Sport and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Julijana Ivanisevic
- Metabolomics Platform, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Arno Schmidt-Trucksäss
- Division of Sport and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
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Caporossi D, Dimauro I. Exercise-induced redox modulation as a mediator of DNA methylation in health maintenance and disease prevention. Free Radic Biol Med 2024; 213:113-122. [PMID: 38242245 DOI: 10.1016/j.freeradbiomed.2024.01.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/09/2024] [Accepted: 01/15/2024] [Indexed: 01/21/2024]
Abstract
The evidence for physical activity (PA) as a major public health preventive approach and a potent medical therapy has increased exponentially in the last decades. The biomolecular mechanisms supporting the associations between PA and/or structured exercise training with health maintenance and disease prevention are not completely characterized. However, increasing evidence pointed out the role of epigenetic modifications in exercise adaptation and health-enhancing PA throughout life, DNA methylation being the most intensely studied epigenetic modification induced by acute and chronic exercise. The current data on the modulation of DNA methylation determined by physically active behavior or exercise interventions points out genes related to energy regulation, mitochondrial function, and biosynthesis, as well as muscle regeneration, calcium signaling pathways, and brain plasticity, all consistent with the known exercise-induced redox signaling and/or reactive oxygen species (ROS) unbalance. Thus, the main focus of this review is to discuss the role of ROS and redox-signaling on DNA methylation profile and its impact on exercise-induced health benefits in humans.
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Affiliation(s)
- Daniela Caporossi
- Unit of Biology and Genetics of Movement, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro De Bosis 15, Rome, 00135, Italy.
| | - Ivan Dimauro
- Unit of Biology and Genetics of Movement, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro De Bosis 15, Rome, 00135, Italy
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Müller C, Hauser C, Carrard J, Gugleta K, Hinrichs T, Schmidt-Trucksäss A, Hanssen H, Streese L. Effects of high-intensity interval training on retinal vessel diameters and oxygen saturation in patients with hypertension: A cross-sectional and randomized controlled trial. Microvasc Res 2024; 151:104616. [PMID: 37890716 DOI: 10.1016/j.mvr.2023.104616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 10/07/2023] [Accepted: 10/20/2023] [Indexed: 10/29/2023]
Abstract
INTRODUCTION Arterial hypertension is a global healthcare burden that affects macrovascular and microvascular structure and function and can promote vascular end-organ damage. This study aimed 1) to evaluate differences in microvascular health between normotensive individuals and patients with arterial hypertension and 2) to assess the effects of short-term high-intensity interval training (HIIT) on microvascular health in the subgroup with arterial hypertension as add-on treatment to antihypertensive medication. METHODS In the cross-sectional part, central retinal arteriolar (CRAE) and venular diameter equivalent (CRVE), arteriolar-to-venular diameter ratio (AVR), and retinal oxygen saturation (O2-saturation) were investigated in 19 normotensive healthy controls (mean age 56 ± 7 years) and 41 patients with arterial hypertension (mean age 59 ± 7 years). In the subsequent randomized controlled trial (RCT), patients with arterial hypertension were randomized to an intervention group (HIIT 3×/week) or a control group that received standard physical activity recommendations after baseline assessment. Assessments of retinal vessel biomarkers and patients` characteristics were repeated after the intervention period of 8 weeks. RESULTS In the cross-sectional part, individuals with normal blood pressure (BP) showed lower body mass index (BMI), body fat, 24 h systolic and diastolic BP, higher peak oxygen uptake, wider CRAE (174 ± 17 μm vs. 161 ± 17 μm, p = 0.009), and higher AVR (0.84 ± 0.05 vs. 0.79 ± 0.05, p = 0.003) compared to patients with hypertension. In the RCT, patients with arterial hypertension showed reduced BMI and fasting glucose levels after HIIT and control condition. In addition, the intervention group reduced body fat percentage (27.0 ± 5.5 vs. 25.8 ± 6.1, p = 0.023) and increased peak oxygen uptake (33.3 ± 5.7 vs. 36.7 ± 5.1, p < 0.001). No changes in BP were found in either group. The intervention group showed narrower CRVE (β -4.8 [95 % CI, -8.85, -0.81] p = 0.020) and higher AVR (0.03 [0.01, 0.04] p < 0.001) after eight weeks of HIIT compared to the control group. No statistically significant changes in retinal O2-saturation were found in either group. CONCLUSION Short-term HIIT proved to be an effective treatment to ameliorate hypertension-induced retinal microvascular abnormalities in patients with hypertension. Retinal vessel diameters may prove to be a sensitive biomarker to quantify treatment efficacy at the microvascular level, at the earliest possible stage in patients with hypertension.
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Affiliation(s)
- Cédric Müller
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Christoph Hauser
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Justin Carrard
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Konstantin Gugleta
- Department of Ophthalmology, University Hospital Basel, Basel, Switzerland
| | - Timo Hinrichs
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Arno Schmidt-Trucksäss
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland; Department of Clinical Research, University Hospital Basel, Basel, Switzerland
| | - Henner Hanssen
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Lukas Streese
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland; Faculty of Health Care, Niederrhein University of Applied Sciences, Krefeld, Germany.
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Danielescu C, Dabija MG, Nedelcu AH, Lupu VV, Lupu A, Ioniuc I, Gîlcă-Blanariu GE, Donica VC, Anton ML, Musat O. Automated Retinal Vessel Analysis Based on Fundus Photographs as a Predictor for Non-Ophthalmic Diseases-Evolution and Perspectives. J Pers Med 2023; 14:45. [PMID: 38248746 PMCID: PMC10817503 DOI: 10.3390/jpm14010045] [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: 11/28/2023] [Revised: 12/27/2023] [Accepted: 12/27/2023] [Indexed: 01/23/2024] Open
Abstract
The study of retinal vessels in relation to cardiovascular risk has a long history. The advent of a dedicated tool based on digital imaging, i.e., the retinal vessel analyzer, and also other software such as Integrative Vessel Analysis (IVAN), Singapore I Vessel Assessment (SIVA), and Vascular Assessment and Measurement Platform for Images of the Retina (VAMPIRE), has led to the accumulation of a formidable body of evidence regarding the prognostic value of retinal vessel analysis (RVA) for cardiovascular and cerebrovascular disease (including arterial hypertension in children). There is also the potential to monitor the response of retinal vessels to therapies such as physical activity or bariatric surgery. The dynamic vessel analyzer (DVA) remains a unique way of studying neurovascular coupling, helping to understand the pathogenesis of cerebrovascular and neurodegenerative conditions and also being complementary to techniques that measure macrovascular dysfunction. Beyond cardiovascular disease, retinal vessel analysis has shown associations with and prognostic value for neurological conditions, inflammation, kidney function, and respiratory disease. Artificial intelligence (AI) (represented by algorithms such as QUantitative Analysis of Retinal vessel Topology and siZe (QUARTZ), SIVA-DLS (SIVA-deep learning system), and many others) seems efficient in extracting information from fundus photographs, providing prognoses of various general conditions with unprecedented predictive value. The future challenges will be integrating RVA and other qualitative and quantitative risk factors in a unique, comprehensive prediction tool, certainly powered by AI, while building the much-needed acceptance for such an approach inside the medical community and reducing the "black box" effect, possibly by means of saliency maps.
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Affiliation(s)
- Ciprian Danielescu
- Department of Ophthalmology, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania;
| | - Marius Gabriel Dabija
- Department of Surgery II, Discipline of Neurosurgery, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania;
| | - Alin Horatiu Nedelcu
- Department of Morpho-Functional Sciences I, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania;
| | - Vasile Valeriu Lupu
- Department of Pediatrics, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania; (V.V.L.); (I.I.)
| | - Ancuta Lupu
- Department of Pediatrics, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania; (V.V.L.); (I.I.)
| | - Ileana Ioniuc
- Department of Pediatrics, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania; (V.V.L.); (I.I.)
| | | | - Vlad-Constantin Donica
- Doctoral School, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania; (V.-C.D.); (M.-L.A.)
| | - Maria-Luciana Anton
- Doctoral School, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania; (V.-C.D.); (M.-L.A.)
| | - Ovidiu Musat
- Department of Ophthalmology, University of Medicine and Pharmacy “Carol Davila”, 020021 Bucuresti, Romania;
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Kuchler T, Günthner R, Ribeiro A, Hausinger R, Streese L, Wöhnl A, Kesseler V, Negele J, Assali T, Carbajo-Lozoya J, Lech M, Schneider H, Adorjan K, Stubbe HC, Hanssen H, Kotilar K, Haller B, Heemann U, Schmaderer C. Persistent endothelial dysfunction in post-COVID-19 syndrome and its associations with symptom severity and chronic inflammation. Angiogenesis 2023; 26:547-563. [PMID: 37507580 PMCID: PMC10542303 DOI: 10.1007/s10456-023-09885-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023]
Abstract
BACKGROUND Post-COVID-19 syndrome (PCS) is a lingering disease with ongoing symptoms such as fatigue and cognitive impairment resulting in a high impact on the daily life of patients. Understanding the pathophysiology of PCS is a public health priority, as it still poses a diagnostic and treatment challenge for physicians. METHODS In this prospective observational cohort study, we analyzed the retinal microcirculation using Retinal Vessel Analysis (RVA) in a cohort of patients with PCS and compared it to an age- and gender-matched healthy cohort (n = 41, matched out of n = 204). MEASUREMENTS AND MAIN RESULTS PCS patients exhibit persistent endothelial dysfunction (ED), as indicated by significantly lower venular flicker-induced dilation (vFID; 3.42% ± 1.77% vs. 4.64% ± 2.59%; p = 0.02), narrower central retinal artery equivalent (CRAE; 178.1 [167.5-190.2] vs. 189.1 [179.4-197.2], p = 0.01) and lower arteriolar-venular ratio (AVR; (0.84 [0.8-0.9] vs. 0.88 [0.8-0.9], p = 0.007). When combining AVR and vFID, predicted scores reached good ability to discriminate groups (area under the curve: 0.75). Higher PCS severity scores correlated with lower AVR (R = - 0.37 p = 0.017). The association of microvascular changes with PCS severity were amplified in PCS patients exhibiting higher levels of inflammatory parameters. CONCLUSION Our results demonstrate that prolonged endothelial dysfunction is a hallmark of PCS, and impairments of the microcirculation seem to explain ongoing symptoms in patients. As potential therapies for PCS emerge, RVA parameters may become relevant as clinical biomarkers for diagnosis and therapy management. TRIAL REGISTRATION This study was previously registered at ClinicalTrials ("All Eyes on PCS-Analysis of the Retinal Microvasculature in Patients with Post-COVID-19 Syndrome". NCT05635552. https://clinicaltrials.gov/ct2/show/NCT05635552 ). Persistent endothelial dysfunction in post-COVID-19 syndrome. Acute SARS-CoV-2 infection indirectly or directly causes endotheliitis in patients. N = 41 PCS patients were recruited and retinal vessel analysis was performed to assess microvascular endothelial function. Images of SVA and DVA are illustrative for RVA data analysis. For each PCS patient and healthy cohort, venular vessel diameter of the three measurement cycles was calculated and plotted on a diameter-time curve. Patients exhibited reduced flicker-induced dilation in veins (vFID) measured by dynamic vessel analysis (DVA) and lower central retinal arteriolar equivalent (CRAE) and arteriolar-venular ratio (AVR) and a tendency towards higher central retinal venular equivalent (CRVE) when compared to SARS-CoV-2 infection naïve participants. Created with BioRender.com.
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Affiliation(s)
- Timon Kuchler
- School of Medicine, Klinikum Rechts Der Isar, Department of Nephrology, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Roman Günthner
- School of Medicine, Klinikum Rechts Der Isar, Department of Nephrology, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Andrea Ribeiro
- School of Medicine, Klinikum Rechts Der Isar, Department of Nephrology, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
- Medizinische Klinik Und Poliklinik IV, LMU University Hospital Munich, Ziemssenstraße 5, 80336, Munich, Germany
| | - Renate Hausinger
- School of Medicine, Klinikum Rechts Der Isar, Department of Nephrology, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Lukas Streese
- Faculty of Health Care, Niederrhein University of Applied Sciences, Krefeld, Germany
| | - Anna Wöhnl
- School of Medicine, Klinikum Rechts Der Isar, Department of Nephrology, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Veronika Kesseler
- School of Medicine, Klinikum Rechts Der Isar, Department of Nephrology, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Johanna Negele
- School of Medicine, Klinikum Rechts Der Isar, Department of Nephrology, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Tarek Assali
- School of Medicine, Klinikum Rechts Der Isar, Department of Nephrology, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Javier Carbajo-Lozoya
- School of Medicine, Klinikum Rechts Der Isar, Department of Nephrology, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Maciej Lech
- Medizinische Klinik Und Poliklinik IV, LMU University Hospital Munich, Ziemssenstraße 5, 80336, Munich, Germany
| | - Heike Schneider
- School of Medicine, Klinikum Rechts Der Isar, Department of Clinical Chemistry and Pathobiochemistry, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Kristina Adorjan
- Department of Psychiatry and Psychotherapy, LMU University Hospital Munich, Nußbaumstraße 7, 80336, Munich, Germany
| | - Hans Christian Stubbe
- Medizinische Klinik Und Poliklinik II, LMU University Hospital Munich, Marchioninistraße 15, 81377, Munich, Germany
| | - Henner Hanssen
- Department of Sport, Exercise and Health, Preventive Sports Medicine and Systems Physiology, University of Basel, Basel, Switzerland
| | - Konstantin Kotilar
- Aachen University of Applied Sciences, Heinrich-Mussmann-Str. 1, 52428, Jülich, Germany
| | - Bernhard Haller
- School of Medicine, Institute for AI and Informatics in Medicine, Technical University of Munich, Klinikum Rechts Der Isar, Ismaninger Str. 22, 81675, Munich, Germany
| | - Uwe Heemann
- School of Medicine, Klinikum Rechts Der Isar, Department of Nephrology, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Christoph Schmaderer
- School of Medicine, Klinikum Rechts Der Isar, Department of Nephrology, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.
- German Centre for Infection Research (DZIF), Partner Site Munich, Munich, Germany.
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Streese L, Pichler FA, Hauser C, Hanssen H. Microvascular wall-to-lumen ratio in patients with arterial hypertension: A randomized controlled exercise trial. Microvasc Res 2023; 148:104526. [PMID: 36914089 DOI: 10.1016/j.mvr.2023.104526] [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: 02/06/2023] [Revised: 03/07/2023] [Accepted: 03/07/2023] [Indexed: 03/15/2023]
Abstract
BACKGROUND AND AIMS High blood pressure is one of the main cardiovascular disease risk factors that contribute to vascular remodeling and dysfunction. We aimed to investigate I) group differences of the retinal microstructure between patients with hypertension and healthy individuals and II) the effects of a high-intensity interval training (HIIT) on hypertension-induced microvascular remodeling in patients with hypertension in a randomized controlled trial. METHODS Arteriolar and venular retinal vessel microstructure including retinal vessel wall (RVW), lumen diameter and wall-to-lumen ratio (WLR) of 41 hypertensive patients, treated with anti-hypertensive medication, and 19 normotensive healthy controls were screened based on high-resolution fundoscopies. Patients with hypertension were randomized to a control group receiving standard physical activity recommendations and an intervention group receiving a supervised and walking-based HIIT for eight weeks. Measurements were repeated after the intervention period. RESULTS Hypertensive patients showed thicker arteriolar RVW (28.0 ± 7.7mu vs. 21.4 ± 4.4mu, p = 0.003) and higher arteriolar WLR (58.5 ± 14.8 % vs. 42.5 ± 8.2 %, p < 0.001) compared to normotensive controls. The intervention group showed reductions in arteriolar RVW (β -3.1 (95 % CI, -4.38, -1.78) p < 0.001) and arteriolar WLR (-5.3 (-10.14, -0.39) p = 0.035) compared to the control group. The intervention effects were independent of age, sex, change in blood pressure and change in cardiorespiratory fitness. CONCLUSIONS HIIT in patients with hypertension improves retinal vessel microvascular remodeling after eight weeks of training. In patients with hypertension, screening retinal vessel microstructure by fundoscopy and monitoring efficacy of short-term exercise treatment are sensitive diagnostic approaches to quantify microvascular health in these patients.
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Affiliation(s)
- Lukas Streese
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland; Faculty of Health Care, Niederrhein University of Applied Sciences, Krefeld, Germany.
| | - Franziska Anna Pichler
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Christoph Hauser
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Henner Hanssen
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
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Moderate-Intensity Intermittent Training Alters the DNA Methylation Pattern of PDE4D Gene in Hippocampus to Improve the Ability of Spatial Learning and Memory in Aging Rats Reduced by D-Galactose. Brain Sci 2023; 13:brainsci13030422. [PMID: 36979232 PMCID: PMC10046546 DOI: 10.3390/brainsci13030422] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/21/2023] [Accepted: 02/26/2023] [Indexed: 03/05/2023] Open
Abstract
(1) Background: Aging is the main risk factor for most neurodegenerative diseases, and the inhibition of Phosphodiesterase 4(PDE4) is considered a potential target for the treatment of neurological diseases. The purpose of this study was to investigate the inhibitory effect of moderate-intensity intermittent training (MIIT) on PDE4 in the hippocampus of rats with D-galactose (D-gal)-induced cognitive impairment, and the possible mechanism of improving spatial learning and memory. (2) Methods: the aging rats were treated with D-Gal (150 mg/kg/day, for 6 weeks). The aging rats were treated with MIIT for exercise intervention (45 min/day, 5 days/week, for 8 weeks). The Morris water maze test was performed before and after MIIT to evaluate the spatial learning and memory ability, then to observe the synaptic ultrastructure of the hippocampus CA1 region, to detect the expression of synaptic-related protein synaptophysin (SYP) and postsynaptic density protein 95 (PSD95), and to detect the expression of PDE4 subtypes, cAMP, and its signal pathway protein kinase A (PKA)/cAMP response element binding protein (CREB)/brain-derived neurotrophic factor (BDNF), and the PDE4 methylation level. (3) Results: we found that MIIT for 8 weeks alleviated the decline in spatial learning and memory ability, and improved the synaptic structure of the hippocampus and the expression of synaptic protein SYP and PSD95 in D-Gal aging rats. To elucidate the mechanism of MIIT, we analyzed the expression of PDE4 isoforms PDE4A/PDE4B/PDE4D, cAMP, and the signaling pathway PKA/CREB/BDNF, which play an important role in memory consolidation and maintenance. The results showed that 8 weeks of MIIT significantly up-regulated cAMP, PKA, p-CREB, and BDNF protein expression, and down-regulated PDE4D mRNA and protein expression. Methylation analysis of the PDE4D gene showed that several CG sites in the promoter and exon1 regions were significantly up-regulated. (4) Conclusions: MIIT can improve the synaptic structure of the hippocampus CA1 area and improve the spatial learning and memory ability of aging rats, which may be related to the specific regulation of the PDE4D gene methylation level and inhibition of PDE4D expression.
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Cai Y, Wang M, Zong Y, Li C, Fu S, Xie K. Demethylation of miR-299-5p by aerobic exercise relieves insulin resistance in the vascular endothelium by repressing resistin. Diabetes Res Clin Pract 2023; 195:110176. [PMID: 36427628 DOI: 10.1016/j.diabres.2022.110176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 10/13/2022] [Accepted: 11/16/2022] [Indexed: 11/25/2022]
Abstract
AIMS Insulin resistance (IR) is a critical marker underlying type 2 diabetes mellitus (T2DM). Exercise is reported to prevent IR, yet the mechanism of which is complicated and largely unknown. Here, the study aimed to ascertain whether and how aerobic exercise mediates IR in T2DM. METHODS An in vivo model of high-fat diet (HFD)-induced IR and an in vitro model of high-glucose-induced IR were constructed. RESULTS Aerobic exercise training in mice led to attenuation of IR in the vascular endothelium. microRNA-299-5p (miR-299-5p) expression was deficient in T2MD, which could be restored by aerobic exercise through modulating the DNA methylation modification enzymes. The expression of miR-299-5p enhanced by aerobic exercise consequently resulted in ameliorating the IR in vivo. Furthermore, increased levels of nitric oxide (NO), reduced levels of Angiotensin II (Ang II), vascular endothelial growth factor (VEGF), tumor necrosis factor alpha (TNF-α), and interleukin-6 (IL-6) in response to miR-299-5p elevation suggested the anti-IR role of miR-299-5p in IR-cell model. Dual-luciferase reporter and ChIP assays identified that miR-299-5p could bind to resistin and hence repressed the resistin level. CONCLUSION The key observation of the study is that aerobic exercise stimulates miR-299-5p-targeted resistin inhibition through demethylation, which underlies the mechanism of reducing IR.
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Affiliation(s)
- Ying Cai
- Department of Rehabilitation Medicine, Xiangya Hospital Central South University, Changsha 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha 410008, PR China
| | - Mingzhu Wang
- Department of Rehabilitation Medicine, Xiangya Hospital Central South University, Changsha 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha 410008, PR China
| | - Yujiao Zong
- Department of Rehabilitation Medicine, Xiangya Hospital Central South University, Changsha 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha 410008, PR China
| | - Cui Li
- Department of Rehabilitation Medicine, Xiangya Hospital Central South University, Changsha 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha 410008, PR China
| | - Siqian Fu
- Department of Rehabilitation Medicine, Xiangya Hospital Central South University, Changsha 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha 410008, PR China
| | - Kangling Xie
- Department of Rehabilitation Medicine, Xiangya Hospital Central South University, Changsha 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha 410008, PR China.
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11
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Günthner R, Streese L, Angermann S, Lorenz G, Braunisch MC, Matschkal J, Hausinger R, Stadler D, Haller B, Heemann U, Kotliar K, Hanssen H, Schmaderer C. Mortality prediction of retinal vessel diameters and function in a long-term follow-up of haemodialysis patients. Cardiovasc Res 2022; 118:3239-3249. [PMID: 35576475 DOI: 10.1093/cvr/cvac073] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 04/07/2022] [Accepted: 04/20/2022] [Indexed: 01/25/2023] Open
Abstract
AIM Retinal vessel diameters are candidate biomarkers of mortality prediction in large population-based studies. We aimed to investigate the predictive value of retinal vessel diameters and flicker-induced retinal arteriolar and venular dilation on all-cause mortality in long-term follow-up of haemodialysis patients. METHODS AND RESULTS Retinal vessel diameters as well as maximum arteriolar (aMax) and venular dilation (vMax) were investigated in 275 and 214 haemodialysis patients, respectively. Patients were observed in a long-term follow-up for a median period of 73 months. About 36% (76/214) and 41% (113/275) of patients died. Arteriolar and venular diameters were 175 ± 19 and 208 ± 20 µm, respectively. Median aMax and vMax were 1.6 (0.3-3.3) and 3.2 (2.0-5.1)%. Patients within the lowest tertile of vMax showed lower 5-year survival rates compared with the highest tertile (50.6 vs. 82.1%) and also exhibited a higher incidence of infection-related deaths (21.7 vs. 4.0%). Univariate hazard ratio (HR) per standard deviation increase of vMax for all-cause mortality was 0.69 (0.54-0.88) and was even more pronounced for infection-related mortality [HR 0.53 (0.33-0.83)]. Regarding all-cause mortality, multivariate adjustment for eight non-retinal mortality predictors including interleukin-6 did not attenuate the HR relevantly [0.73 (0.54-0.98)]. Arteriolar and venular diameters did not predict all-cause nor cardiovascular and infection-related mortality. CONCLUSIONS Long-term follow-up of patients on haemodialysis demonstrated the potential of retinal venular dilation capacity for mortality prediction, which was most pronounced for infection-related mortality. In the same cohort, retinal arteriolar and venular diameters showed no predictive value for hard endpoints. Retinal venular dilation but not arteriolar and venular diameters is a valuable diagnostic biomarker for risk prediction in patients with end-stage renal disease and should be considered for monitoring of critically ill patients.
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Affiliation(s)
- Roman Günthner
- Department of Nephrology, School of Medicine, Klinikum rechts der Isar, Technical University Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Lukas Streese
- Division Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Susanne Angermann
- Department of Nephrology, School of Medicine, Klinikum rechts der Isar, Technical University Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Georg Lorenz
- Department of Nephrology, School of Medicine, Klinikum rechts der Isar, Technical University Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Matthias C Braunisch
- Department of Nephrology, School of Medicine, Klinikum rechts der Isar, Technical University Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Julia Matschkal
- Department of Nephrology, School of Medicine, Klinikum rechts der Isar, Technical University Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Renate Hausinger
- Department of Nephrology, School of Medicine, Klinikum rechts der Isar, Technical University Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - David Stadler
- Department of Nephrology, School of Medicine, Klinikum rechts der Isar, Technical University Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Bernhard Haller
- Institute for AI and Informatics in Medicine, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Uwe Heemann
- Department of Nephrology, School of Medicine, Klinikum rechts der Isar, Technical University Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Konstantin Kotliar
- Department of Medical Engineering and Technomathematics, Aachen University of Applied Sciences, Jülich, Germany
| | - Henner Hanssen
- Division Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Christoph Schmaderer
- Department of Nephrology, School of Medicine, Klinikum rechts der Isar, Technical University Munich, Ismaninger Str. 22, 81675 Munich, Germany
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12
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Gevaert AB, Wood N, Boen JRA, Davos CH, Hansen D, Hanssen H, Krenning G, Moholdt T, Osto E, Paneni F, Pedretti RFE, Plösch T, Simonenko M, Bowen TS. Epigenetics in the primary and secondary prevention of cardiovascular disease: influence of exercise and nutrition. Eur J Prev Cardiol 2022; 29:2183-2199. [PMID: 35989414 DOI: 10.1093/eurjpc/zwac179] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 07/29/2022] [Accepted: 08/16/2022] [Indexed: 01/11/2023]
Abstract
Increasing evidence links changes in epigenetic systems, such as DNA methylation, histone modification, and non-coding RNA expression, to the occurrence of cardiovascular disease (CVD). These epigenetic modifications can change genetic function under influence of exogenous stimuli and can be transferred to next generations, providing a potential mechanism for inheritance of behavioural intervention effects. The benefits of exercise and nutritional interventions in the primary and secondary prevention of CVD are well established, but the mechanisms are not completely understood. In this review, we describe the acute and chronic epigenetic effects of physical activity and dietary changes. We propose exercise and nutrition as potential triggers of epigenetic signals, promoting the reshaping of transcriptional programmes with effects on CVD phenotypes. Finally, we highlight recent developments in epigenetic therapeutics with implications for primary and secondary CVD prevention.
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Affiliation(s)
- Andreas B Gevaert
- Research Group Cardiovascular Diseases, GENCOR Department, University of Antwerp, Campus Drie Eiken D.T.228, Universiteitsplein 1, Antwerp 2610, Belgium.,Department of Cardiology, Antwerp University Hospital (UZA), Edegem, Belgium
| | - Nathanael Wood
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
| | - Jente R A Boen
- Research Group Cardiovascular Diseases, GENCOR Department, University of Antwerp, Campus Drie Eiken D.T.228, Universiteitsplein 1, Antwerp 2610, Belgium
| | - Constantinos H Davos
- Cardiovascular Research Laboratory, Biomedical Research Foundation, Academy of Athens, Athens, Greece
| | - Dominique Hansen
- Department of Cardiology, Heart Center Hasselt, Jessa Hospital, Hasselt, Belgium.,BIOMED-REVAL-Rehabilitation Research Centre, Faculty of Rehabilitation Sciences, Hasselt University, Hasselt, Belgium
| | - Henner Hanssen
- Department of Sport, Exercise and Health, Sports and Exercise Medicine, Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Guido Krenning
- Laboratory for Cardiovascular Regenerative Medicine, Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Trine Moholdt
- Department of Circulation and Medical Imaging, Faculty of Medicine and Health Sciences, Norwegian Institute of Science and Technology (NTNU), Trondheim, Norway.,Department of Women's Health, St Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Elena Osto
- Institute of Clinical Chemistry, University and University Hospital Zurich, Zurich, Switzerland.,University Heart Center, University Hospital Zurich, Zurich, Switzerland.,Laboratory of Translational Nutrition Biology, Swiss Federal Institute of Technology (ETH), Zurich, Switzerland
| | - Francesco Paneni
- University Heart Center, University Hospital Zurich, Zurich, Switzerland.,Center for Molecular Cardiology, University of Zurich, Zurich, Switzerland.,Department of Research and Education, University Hospital Zurich, Zurich, Switzerland
| | - Roberto F E Pedretti
- Cardiovascular Department, IRCCS MultiMedica, Care and Research Institute, Milan, Italy
| | - Torsten Plösch
- Department of Obstetrics and Gynaecology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Perinatal Neurobiology, Department of Human Medicine, School of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, Oldenburg, Germany
| | - Maria Simonenko
- Physiology Research and Blood Circulation Department, Cardiopulmonary Exercise Test SRL, Federal State Budgetary Institution, 'V.A. Almazov National Medical Research Centre' of the Ministry of Health of the Russian Federation, Saint-Petersburg, Russian Federation
| | - T Scott Bowen
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
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13
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Sun Y, Cheng G, Du L, Gan Y, Li B, Yan S, Shao M, Jin H, Li S. Chuanzhitongluo capsule ameliorates microcirculatory dysfunction in rats: Efficacy evaluation and metabolic profiles. Front Pharmacol 2022; 13:1011333. [PMID: 36278210 PMCID: PMC9585327 DOI: 10.3389/fphar.2022.1011333] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 09/20/2022] [Indexed: 11/24/2022] Open
Abstract
Background: Ischemic stroke is a leading cause of mortality and disability worldwide. Microcirculatory dysfunction is the foremost hindrance for a good clinical prognosis in ischemic stroke patients. Clinical researches show that Chuanzhitongluo capsule (CZTL) has a curative effect during the recovery period of ischemic stroke, which contributes to a good prognosis. However, it is not known whether CZTL treats ischemic stroke by ameliorating microcirculation dysfunction. Objective: In this study, we investigated the influence of CZTL on microcirculation and its underlying mechanism. Methods: A rat model of acute microcirculatory dysfunction was established by stimuli of adrenaline and ice water. The microcirculatory damage in model rats and the efficacy of CZTL were assessed by detecting laser speckle contrast imaging, coagulation function, hemorheology, vasomotor factor and microcirculation function. The potential mechanism of CZTL action was explored by the untargeted metabolomic analysis based on ultra-performance liquid chromatography-quadrupole-time of flight-mass spectrometry. Results: Laser speckle contrast imaging showed that model rats suffered low perfusion in ears, feet and tails, and CZTL treatment increased microcirculatory blood flow. Coagulation function detection results showed that CZTL diminished the reduction of thrombin time, prothrombin time, activated partial thromboplastin time and the elevated fibrinogen level caused by acute microcirculatory dysfunction. Furthermore, CZTL could recover the increased blood viscosity as well as the abnormal vasomotor and microcirculation function in rats with acute microcirculatory dysfunction. Metabolomics analysis indicated that CZTL might regulate sphingolipid metabolism and arachidonic acid metabolism to exert protective effects on microcirculation. Conclusion: These results elucidated that CZTL was highly effective against microcirculatory dysfunction and its potential mechanisms related with the modulation of sphingolipid and arachidonic acid metabolic pathways. The present study provided a new perspective on the clinical application of CZTL, and it contribute to explore novel therapeutic drug against microcirculatory dysfunction.
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Affiliation(s)
- Yuanfang Sun
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Guoliang Cheng
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co.,Ltd, Linyi, China
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Lijing Du
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yu Gan
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Bing Li
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co.,Ltd, Linyi, China
| | - Shikai Yan
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co.,Ltd, Linyi, China
| | - Mingguo Shao
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co.,Ltd, Linyi, China
- *Correspondence: Mingguo Shao, ; Shasha Li,
| | - Huizi Jin
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co.,Ltd, Linyi, China
| | - Shasha Li
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- *Correspondence: Mingguo Shao, ; Shasha Li,
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14
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The landscape of aging. SCIENCE CHINA LIFE SCIENCES 2022; 65:2354-2454. [PMID: 36066811 PMCID: PMC9446657 DOI: 10.1007/s11427-022-2161-3] [Citation(s) in RCA: 91] [Impact Index Per Article: 45.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 07/05/2022] [Indexed: 02/07/2023]
Abstract
Aging is characterized by a progressive deterioration of physiological integrity, leading to impaired functional ability and ultimately increased susceptibility to death. It is a major risk factor for chronic human diseases, including cardiovascular disease, diabetes, neurological degeneration, and cancer. Therefore, the growing emphasis on “healthy aging” raises a series of important questions in life and social sciences. In recent years, there has been unprecedented progress in aging research, particularly the discovery that the rate of aging is at least partly controlled by evolutionarily conserved genetic pathways and biological processes. In an attempt to bring full-fledged understanding to both the aging process and age-associated diseases, we review the descriptive, conceptual, and interventive aspects of the landscape of aging composed of a number of layers at the cellular, tissue, organ, organ system, and organismal levels.
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15
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Streese L, Liffert J, Vilser W, Handschin C, Hanssen H. In-vivo assessment of retinal vessel diameters and observer variability in mice: A methodological approach. PLoS One 2022; 17:e0271815. [PMID: 35862469 PMCID: PMC9302806 DOI: 10.1371/journal.pone.0271815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 07/08/2022] [Indexed: 11/22/2022] Open
Abstract
Background Central retinal arteriolar (CRAE) and venular (CRVE) diameter equivalents are predictive for cardiovascular and all-cause mortality in humans. The aim of this study was to investigate the inter- and intraobserver variability for the assessment of CRAE and CRVE in mice using fluorescein contrast enhancement as compared to crude analysis. Methods Three high quality images with (F) and without fluorescein (NF) of eight mice (type C57BL) were recorded and analysed by two independent experienced investigators to investigate interobserver variability. In addition, one investigator analysed 20 F and 20 NF images twice to investigate intraobserver variability. The time course of CRAE and CRVE vessel responses after fluorescein injection were recorded in one mouse every 30 seconds for 15 minutes. Results The interobserver variability was lower in F images compared to NF images for CRAE (r = 0.99, p < 0.001 vs. r = 0.65, p = 0.083) and CRVE (r = 0.99, p < 0.001 vs. r = 0.79, p = 0.019). Intraobserver variability for CRAE (r = 0.99, p < 0.001 vs. r = 0.48, p = 0.032) and CRVE (r = 0.98, p < 0.001 vs. r = 0.86, p < 0.001) were lower in F compared to NF images. Fluorescein injection induced vascular staining mimicking vessel dilation (+14%) followed by a long-lasting stable staining phase well suited for precise measurements. Conclusions Measurement variability can be optimized by use of fluorescein as contrast enhancement in mice. Standardization for time of image acquisition after fluorescein injection is advisable. Translation of static retinal vessel analysis into a rodent model has the potential to bridge the research gap between proof of concept studies in animals and clinical studies in humans.
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Affiliation(s)
- Lukas Streese
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Jeannine Liffert
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
- Biozentrum, Medical Faculty, University of Basel, Basel, Switzerland
| | - Walthard Vilser
- Institute of Biomedical Engineering and Informatics, Technical University of Ilmenau, Ilmenau, Germany
| | | | - Henner Hanssen
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
- * E-mail:
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Hanssen H, Streese L, Vilser W. Retinal vessel diameters and function in cardiovascular risk and disease. Prog Retin Eye Res 2022; 91:101095. [PMID: 35760749 DOI: 10.1016/j.preteyeres.2022.101095] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 06/03/2022] [Accepted: 06/13/2022] [Indexed: 12/13/2022]
Abstract
In the last two decades evidence has gradually accumulated suggesting that the eye may be a unique window for cardiovascular risk stratification based on the assessment of subclinical damage of retinal microvascular structure and function. This can be facilitated by non-invasive analysis of static retinal vessel diameters and dynamic recording of flicker light-induced and endothelial function-related dilation of both retinal arterioles and venules. Recent new findings have made retinal microvascular biomarkers strong candidates for clinical implementation as reliable risk predictors. Beyond a review of the current evidence and state of research, the article aims to discuss the methodological benefits and pitfalls and to identify research gaps and future directions. Above all, the potential use for screening and treatment monitoring of cardiovascular disease risk are highlighted. The article provides fundamental comprehension of retinal vessel imaging by explaining anatomical and physiological essentials of the retinal microcirculation leading to a detailed description of the methodological approach. This allows for better understanding of the underlying retinal microvascular pathology associated with the prevalence and development of cardiovascular disease. A body of new evidence is presented on the clinical validity and predictive value of retinal vessel diameters and function for incidence cardiovascular disease and outcome. Findings in children indicate the potential for utility in childhood cardiovascular disease prevention, and the efficacy of exercise interventions highlight the treatment sensitivity of retinal microvascular biomarkers. Finally, coming from the availability of normative data, solutions for diagnostic challenges are discussed and conceptual steps towards clinical implementation are put into perspective.
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Affiliation(s)
- Henner Hanssen
- Department of Sport, Exercise and Health, Preventive Sports Medicine and Systems Physiology, Medical Faculty, University of Basel, Switzerland.
| | - Lukas Streese
- Department of Sport, Exercise and Health, Preventive Sports Medicine and Systems Physiology, Medical Faculty, University of Basel, Switzerland
| | - Walthard Vilser
- Institute of Biomedical Engineering and Informatics, Ilmenau University of Technology, Ilmenau, Germany; Neonatology and Pediatric Intensive Care Unit, Department of Pediatrics, Jena University Hospital, Jena, Germany
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Streese L, Gander J, Carrard J, Hauser C, Hinrichs T, Schmidt-Trucksäss A, Gugleta K, Hanssen H. Hypertension and retinal microvascular dysfunction (HyperVasc): protocol of a randomised controlled exercise trial in patients with hypertension. BMJ Open 2022; 12:e058997. [PMID: 35667713 PMCID: PMC9171229 DOI: 10.1136/bmjopen-2021-058997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
INTRODUCTION Hypertension is a global healthcare burden that affects the structure and function of the macrocirculation and microcirculation and induces disease-specific end-organ damage. Vascular biomarkers are essential to timely diagnose this end-organ damage to improve cardiovascular (CV) risk stratification and medical decision making. Exercise therapy is an effective means to improve vascular health and reduce overall CV risk. However, it is still not clear whether high-intensity interval training (HIIT) is recommendable for patients with hypertension to reduce blood pressure, increase cardiorespiratory fitness and ameliorate vascular health. METHODS AND ANALYSIS The 'Hypertension and retinal microvascular dysfunction' trial will investigate macrovascular and microvascular impairments in hypertensive patients compared with healthy controls to investigate hypertension-induced end-organ damage by using gold-standard methods as well as newly developed unique retinal microvascular biomarkers. In addition, this trial will investigate the reversibility of retinal end-organ damage by assessing the effects of an 8-week supervised and walking based HIIT on blood pressure, cardiorespiratory fitness as well as macrovascular and microvascular health, compared with a control group following standard physical activity recommendations. Primary outcome will be the arteriolar-to-venular diameter ratio. Secondary outcomes will be arteriolar and venular diameters as well as the flicker-light-induced dilation. Further outcomes will be other retinal microvascular biomarkers, flow-mediated dilation of the brachial artery as well as blood pressure, cardiorespiratory fitness, microalbuminuria, hypertensive retinopathy and classical CV risk markers. Analysis of variance and analysis of covariance will be used to investigate group differences between healthy controls and hypertensive patients and training effects in hypertensive patients, respectively. ETHICS AND DISSEMINATION The Ethics Committee of Northwestern and Central Switzerland approved this study (EKNZ-2021-00086). All participants will give informed consent. TRIAL REGISTRATION NUMBER NCT04763005.
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Affiliation(s)
- Lukas Streese
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Joséphine Gander
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Justin Carrard
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Christoph Hauser
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Timo Hinrichs
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | | | | | - Henner Hanssen
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
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Weerts J, Mourmans SGJ, Barandiarán Aizpurua A, Schroen BLM, Knackstedt C, Eringa E, Houben AJHM, van Empel VPM. The Role of Systemic Microvascular Dysfunction in Heart Failure with Preserved Ejection Fraction. Biomolecules 2022; 12:biom12020278. [PMID: 35204779 PMCID: PMC8961612 DOI: 10.3390/biom12020278] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/01/2022] [Accepted: 02/05/2022] [Indexed: 02/06/2023] Open
Abstract
Heart failure with preserved ejection fraction (HFpEF) is a condition with increasing incidence, leading to a health care problem of epidemic proportions for which no curative treatments exist. Consequently, an urge exists to better understand the pathophysiology of HFpEF. Accumulating evidence suggests a key pathophysiological role for coronary microvascular dysfunction (MVD), with an underlying mechanism of low-grade pro-inflammatory state caused by systemic comorbidities. The systemic entity of comorbidities and inflammation in HFpEF imply that patients develop HFpEF due to systemic mechanisms causing coronary MVD, or systemic MVD. The absence or presence of peripheral MVD in HFpEF would reflect HFpEF being predominantly a cardiac or a systemic disease. Here, we will review the current state of the art of cardiac and systemic microvascular dysfunction in HFpEF (Graphical Abstract), resulting in future perspectives on new diagnostic modalities and therapeutic strategies.
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Affiliation(s)
- Jerremy Weerts
- Department of Cardiology, CARIM School for Cardiovascular Diseases, Maastricht University Medical Centre (MUMC+), 6229 HX Maastricht, The Netherlands; (S.G.J.M.); (A.B.A.); (B.L.M.S.); (C.K.); (V.P.M.v.E.)
- Correspondence: ; Tel.: +31-43-387-7097
| | - Sanne G. J. Mourmans
- Department of Cardiology, CARIM School for Cardiovascular Diseases, Maastricht University Medical Centre (MUMC+), 6229 HX Maastricht, The Netherlands; (S.G.J.M.); (A.B.A.); (B.L.M.S.); (C.K.); (V.P.M.v.E.)
| | - Arantxa Barandiarán Aizpurua
- Department of Cardiology, CARIM School for Cardiovascular Diseases, Maastricht University Medical Centre (MUMC+), 6229 HX Maastricht, The Netherlands; (S.G.J.M.); (A.B.A.); (B.L.M.S.); (C.K.); (V.P.M.v.E.)
| | - Blanche L. M. Schroen
- Department of Cardiology, CARIM School for Cardiovascular Diseases, Maastricht University Medical Centre (MUMC+), 6229 HX Maastricht, The Netherlands; (S.G.J.M.); (A.B.A.); (B.L.M.S.); (C.K.); (V.P.M.v.E.)
| | - Christian Knackstedt
- Department of Cardiology, CARIM School for Cardiovascular Diseases, Maastricht University Medical Centre (MUMC+), 6229 HX Maastricht, The Netherlands; (S.G.J.M.); (A.B.A.); (B.L.M.S.); (C.K.); (V.P.M.v.E.)
| | - Etto Eringa
- Department of Physiology, CARIM School for Cardiovascular Diseases, Maastricht University, 6211 LK Maastricht, The Netherlands;
- Department of Physiology, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Center, 1105 AZ Amsterdam, The Netherlands
| | - Alfons J. H. M. Houben
- Department of Internal Medicine, CARIM School for Cardiovascular Diseases, Maastricht University Medical Centre (MUMC+), 6229 HX Maastricht, The Netherlands;
| | - Vanessa P. M. van Empel
- Department of Cardiology, CARIM School for Cardiovascular Diseases, Maastricht University Medical Centre (MUMC+), 6229 HX Maastricht, The Netherlands; (S.G.J.M.); (A.B.A.); (B.L.M.S.); (C.K.); (V.P.M.v.E.)
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Figueiredo C, Padilha C, Dorneles G, Peres A, Krüger K, Rosa Neto JC, Lira F. Type and Intensity as Key Variable of Exercise in Metainflammation diseases: A Review. Int J Sports Med 2021; 43:743-767. [PMID: 34902867 DOI: 10.1055/a-1720-0369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Monocyte and lymphocyte subpopulations exhibit functions that vary between the anti- and pro-inflammatory spectrum, such as classic CD16- and non-classical CD16+ monocytes, as well as T helper 2 lymphocytes (Th2), the Th1/Th17 lymphocytes ratio, and T regulatory lymphocytes (Treg). Metabolic disease-associated inflammation is accompanied by an imbalance in monocyte and lymphocyte phenotypes and functionality, as well as a stronger proportion of inflammatory subpopulations. These changes appear to be important for the development and progression of diseases like diabetes and cardiovascular disease. On the other hand, the regular practice of physical exercise is an important tool to restore the functionality of monocytes and lymphocytes, and to balance the subtypes ratio. However, key variables regarding exercise prescription, such as the type of exercise, intensity, and volume differentially impact on the acute and chronic immune response in individuals diagnosed with meta inflammation diseases. Here, we discuss the impact of different physical exercise protocols, acutely and chronically, on monocytes and lymphocytes of individuals with metabolic disease-associated inflammation. In this review, we focus on the best effects of different exercise protocols to dose the "exercise pill" in different inflammatory status.
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Affiliation(s)
- Caique Figueiredo
- Physical Education, Universidade Estadual Paulista Julio de Mesquita Filho - Campus de Presidente Prudente, Presidente Prudente, Brazil
| | - Camila Padilha
- Physical Education, Universidade Estadual de Londrina, Londrina, Brazil
| | - Gilson Dorneles
- Immunology, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Alessandra Peres
- Immunology, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Karsten Krüger
- Dept. of Sport Medicine, Institute of Sport Science, Giessen, Germany
| | | | - Fábio Lira
- Department of Physical Education, Unesp, Presidente Prudente, Brazil
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20
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Światowy WJ, Drzewiecka H, Kliber M, Sąsiadek M, Karpiński P, Pławski A, Jagodziński PP. Physical Activity and DNA Methylation in Humans. Int J Mol Sci 2021; 22:ijms222312989. [PMID: 34884790 PMCID: PMC8657566 DOI: 10.3390/ijms222312989] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/27/2021] [Accepted: 11/29/2021] [Indexed: 12/15/2022] Open
Abstract
Physical activity is a strong stimulus influencing the overall physiology of the human body. Exercises lead to biochemical changes in various tissues and exert an impact on gene expression. Exercise-induced changes in gene expression may be mediated by epigenetic modifications, which rearrange the chromatin structure and therefore modulate its accessibility for transcription factors. One of such epigenetic mark is DNA methylation that involves an attachment of a methyl group to the fifth carbon of cytosine residue present in CG dinucleotides (CpG). DNA methylation is catalyzed by a family of DNA methyltransferases. This reversible DNA modification results in the recruitment of proteins containing methyl binding domain and further transcriptional co-repressors leading to the silencing of gene expression. The accumulation of CpG dinucleotides, referred as CpG islands, occurs at the promoter regions in a great majority of human genes. Therefore, changes in DNA methylation profile affect the transcription of multiple genes. A growing body of evidence indicates that exercise training modulates DNA methylation in muscles and adipose tissue. Some of these epigenetic markers were associated with a reduced risk of chronic diseases. This review summarizes the current knowledge about the influence of physical activity on the DNA methylation status in humans.
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Affiliation(s)
- Witold Józef Światowy
- Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (H.D.); (M.K.); (P.P.J.)
- Correspondence: ; Tel.: +48-618-546-513
| | - Hanna Drzewiecka
- Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (H.D.); (M.K.); (P.P.J.)
| | - Michalina Kliber
- Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (H.D.); (M.K.); (P.P.J.)
| | - Maria Sąsiadek
- Department of Genetics, Wroclaw Medical University, 50-368 Wroclaw, Poland; (M.S.); (P.K.)
| | - Paweł Karpiński
- Department of Genetics, Wroclaw Medical University, 50-368 Wroclaw, Poland; (M.S.); (P.K.)
| | - Andrzej Pławski
- Institute of Human Genetics, Polish Academy of Sciences, 60-479 Poznan, Poland;
| | - Paweł Piotr Jagodziński
- Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (H.D.); (M.K.); (P.P.J.)
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21
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Streese L, Springer AM, Deiseroth A, Carrard J, Infanger D, Schmaderer C, Schmidt-Trucksäss A, Madl T, Hanssen H. Metabolic profiling links cardiovascular risk and vascular end organ damage. Atherosclerosis 2021; 331:45-53. [PMID: 34344526 DOI: 10.1016/j.atherosclerosis.2021.07.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 07/01/2021] [Accepted: 07/09/2021] [Indexed: 01/09/2023]
Abstract
BACKGROUND AND AIMS An untargeted metabolomics approach allows for a better understanding and identification of new candidate metabolites involved in the etiology of vascular disease. We aimed to investigate the associations of cardiovascular (CV) risk factors with the metabolic fingerprint and macro- and microvascular health in an untargeted metabolomic approach in predefined CV risk groups of aged individuals. METHODS The metabolic fingerprint and the macro- and microvascular health from 155 well-characterized aged (50-80 years) individuals, based on the EXAMIN AGE study, were analysed. Nuclear magnetic resonance spectroscopy was used to analyse the metabolic fingerprint. Carotid-femoral pulse wave velocity and retinal vessel diameters were assessed to quantify macro- and microvascular health. RESULTS The metabolic fingerprint became more heterogeneous with an increasing number of risk factors. There was strong evidence for higher levels of glutamine [estimate (95% CI): -14.54 (-17.81 to -11.27), p < 0.001], glycine [-5.84 (-7.88 to -3.79), p < 0.001], histidine [-0.73 (-0.96 to -0.50), p < 0.001], and acetate [-1.68 (-2.91 to -0.46), p = 0.007] to be associated with a lower CV risk profile. Tryptophan, however, was positively associated with higher CV risk [0.31 (0.06-0.56), p = 0.015]. The combination of a priori defined CV risk factors explained up to 45.4% of the metabolic variation. The metabolic fingerprint explained 20% of macro- and 23% of microvascular variation. CONCLUSIONS Metabolic profiling has the potential to improve CV risk stratification by identifying new underlying metabolic pathways associated with atherosclerotic disease development, from cardiovascular risk to metabolites, to vascular end organ damage.
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Affiliation(s)
- Lukas Streese
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Anna Maria Springer
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Arne Deiseroth
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Justin Carrard
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Denis Infanger
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Christoph Schmaderer
- Department of Nephrology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Arno Schmidt-Trucksäss
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Tobias Madl
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria; BioTechMed Graz, Graz, Austria.
| | - Henner Hanssen
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
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22
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Streese L, Lona G, Wagner J, Knaier R, Burri A, Nève G, Infanger D, Vilser W, Schmidt-Trucksäss A, Hanssen H. Normative data and standard operating procedures for static and dynamic retinal vessel analysis as biomarker for cardiovascular risk. Sci Rep 2021; 11:14136. [PMID: 34238996 PMCID: PMC8266855 DOI: 10.1038/s41598-021-93617-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 06/22/2021] [Indexed: 01/10/2023] Open
Abstract
Retinal vessel phenotype is predictive for cardiovascular outcome. This cross-sectional population-based study aimed to quantify normative data and standard operating procedures for static and dynamic retinal vessel analysis. We analysed central retinal arteriolar (CRAE) and venular (CRVE) diameter equivalents, as well as retinal endothelial function, measured by flicker light‐induced maximal arteriolar (aFID) and venular (vFID) dilatation. Measurements were performed in 277 healthy individuals aged 20 to 82 years of the COmPLETE study. The mean range from the youngest compared to the oldest decade was 196 ± 13 to 166 ± 17 µm for CRAE, 220 ± 15 to 199 ± 16 µm for CRVE, 3.74 ± 2.17 to 3.79 ± 2.43% for aFID and 4.64 ± 1.85 to 3.86 ± 1.56% for vFID. Lower CRAE [estimate (95% CI): − 0.52 (− 0.61 to − 0.43)], CRVE [− 0.33 (− 0.43 to − 0.24)] and vFID [− 0.01 (− 0.26 to − 0.00)], but not aFID, were significantly associated with older age. Interestingly, higher blood pressure was associated with narrower CRAE [− 0.82 (− 1.00 to − 0.63)] but higher aFID [0.05 (0.03 to 0.07)]. Likewise, narrower CRAE were associated with a higher predicted aFID [− 0.02 (− 0.37 to − 0.01)]. We recommend use of defined standardized operating procedures and cardiovascular risk stratification based on normative data to allow for clinical implementation of retinal vessel analysis in a personalized medicine approach.
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Affiliation(s)
- Lukas Streese
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Birsstrasse 320 B, 4052, Basel, Switzerland
| | - Giulia Lona
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Birsstrasse 320 B, 4052, Basel, Switzerland
| | - Jonathan Wagner
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Birsstrasse 320 B, 4052, Basel, Switzerland
| | - Raphael Knaier
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Birsstrasse 320 B, 4052, Basel, Switzerland
| | - Andri Burri
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Birsstrasse 320 B, 4052, Basel, Switzerland
| | - Gilles Nève
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Birsstrasse 320 B, 4052, Basel, Switzerland
| | - Denis Infanger
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Birsstrasse 320 B, 4052, Basel, Switzerland
| | - Walthard Vilser
- Institute of Biomedical Engineering and Informatics, Ilmenau University of Technology, Ilmenau, Germany
| | - Arno Schmidt-Trucksäss
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Birsstrasse 320 B, 4052, Basel, Switzerland
| | - Henner Hanssen
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Birsstrasse 320 B, 4052, Basel, Switzerland.
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Lou W, Chong W, Kong H, Du W, Zhou J, Zhang X, Tao H, Wu Q. Comparison of Two Spectral-domain Optical Coherence Tomography Scan Modes for Measuring Retinal Vessel Diameter. Curr Eye Res 2021; 46:1025-1030. [PMID: 33886375 DOI: 10.1080/02713683.2020.1862238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Purpose: To assess the agreement between Line 3-5 raster scan mode and circular scan mode for measuring retinal vessel diameter, and to analyze the influence of scanning distance on retinal vessel diameter and agreement.Methods: 79 healthy participants (79 eyes) were scanned with two modes. The scanning distance was defined as the distance from the center of the optic disc to the intersection of the blood vessel and the scan line on the raster image. The large superior temporal vessel was measured, with the distance between vascular wall hyperreflectivities measured to obtain vessel diameters. The degree of agreement between the line 3-5 raster scan and circular scan modes, and the effect of scanning distance on agreement and vascular diameter were assessed.Results: There was good agreement between line 3 subgroup and the circular scan for measuring venous and arterial diameter (venous: intraclass correlation coefficients (ICCs) = 0.87, p < .001; arterial: ICCs = 0.84, p < .001). Unexpectedly, diameters from the fourth raster scan were only comparable to the circular scan in measuring venous diameter (ICCs = 0.86, p < .001), despite the same scanning distance between the fourth raster line and circular scan. Vessels with a scanning distance between 1400 μm - 1799 μm showed good agreement with the circular scan (venous and arterial: all ICCs ≥ 0.84, p < .001). In addition, venous diameter and arterial diameter decreased with increasing distance from the optic disc center, with venous and arterial diameter decreasing by 0.02 μm/μm (p < .001) and 0.007 μm/μm (p = .02), respectively.Conclusion: Arterial and venous diameter measured by the circular mode was comparable to only one scan line and two scan lines of the raster scan mode, respectively. Our study identified a difference between the two scan modes, with the difference not fully attributable to differences in scanning distance. Prospective studies reporting vascular diameter as a primary outcome should report the scan mode used.
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Affiliation(s)
- Wei Lou
- Department of Ophthalmology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Weelic Chong
- Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Hongyu Kong
- Eye Institute, Eye & ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Wei Du
- Department of Ophthalmology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Jun Zhou
- Department of Ophthalmology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Xueyan Zhang
- Department of Ophthalmology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Hanyan Tao
- Department of Ophthalmology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Qiang Wu
- Department of Ophthalmology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
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24
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Estruch R, Ruilope LM, Cosentino F. The year in cardiovascular medicine 2020: epidemiology and prevention. Eur Heart J 2021; 42:813-821. [PMID: 33388753 DOI: 10.1093/eurheartj/ehaa1062] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 12/01/2020] [Accepted: 12/12/2020] [Indexed: 12/12/2022] Open
Affiliation(s)
- Ramon Estruch
- Department of Internal Medicine, Hospital Clínic, IDIBAPS, University of Barcelona, Villarroel, 170. 08036 Barcelona, Spain.,CIBER Fisiopatología de la Obesidad y la Nutrición, CIBEROBN, Instituto de Salud Carlos III, Madrid, Spain
| | - Luis M Ruilope
- Hypertension Unit and Cardiorenal Translational Laboratory, Research Institute, Hospital Universitario, 12 de Octubre, Madrid, Spain.,CIBER Enfermedades Cardiovasculares, CIBER-CV Hospital Universitario, 12 de Octubre, Avd. de Córdoba s/n. 28041 Madrid, Spain.,Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain
| | - Francesco Cosentino
- Cardiology Unit, Department of Medicine, Karolinska Institutet and Karolinska University Hospital, FE 200, 171 77 Stockholm, Sweden
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Houben AJ, Stehouwer CD. Microvascular dysfunction: Determinants and treatment, with a focus on hyperglycemia. ENDOCRINE AND METABOLIC SCIENCE 2021. [DOI: 10.1016/j.endmts.2020.100073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
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Streese L, Vaes A, Infanger D, Roth R, Hanssen H. Quantification of Retinal Vessel Myogenic Constriction in Response to Blood Pressure Peaks: Implications for Flicker Light-Induced Dilatation. Front Physiol 2021; 12:608985. [PMID: 33679432 PMCID: PMC7929982 DOI: 10.3389/fphys.2021.608985] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 01/25/2021] [Indexed: 01/10/2023] Open
Abstract
Background/Aims Flicker-light induced retinal vessel dilatation (FID), a marker of microvascular endothelial function, has been shown to be blunted in sedentary cardiovascular risk patients (SR) as well as healthy physically active individuals (HA). This study aimed to quantify the retinal myogenic response to blood pressure (BP) peaks and its effects on consecutive FID for differentiation of microvascular health. Methods Ten HA and eleven SR with a previously established restriction of arteriolar FID (aFID) (<2.2%) were invited in order to assess BP-induced myogenic constriction following a standardized handgrip task and a consecutive FID. BP was measured beat-to-beat. Results The complete dataset of nine HA (3 female, mean age 65 years) and nine SR (5 female, mean age 61 years) individuals was analyzed. The central retinal arteriolar diameter equivalent (CRAE) was 183 ± 11 μm for HA and 176 ± 20 μm for SR. Initial baseline aFID was 1.6 ± 0.4% in HA and 1.6 ± 0.7% in SR. Systolic (p = 0.334) and diastolic (p = 0.245) BP increase following the handgrip task was in the range of 20–30% and comparable in both groups. BP increase was followed by a significantly higher arteriolar (−2.9 ± 1.3% vs. −1.3 ± 0.6%, p < 0.01) myogenic constriction in HA compared to SR. Moreover, in the consecutive assessment of FID directly after the BP-induced vessel constriction, aFID (4.1 ± 2.0% vs. 1.6 ± 0.9%, p < 0.01) was higher in HA compared to SR. Conclusion Initial baseline aFID was blunted in HA and SR. Retinal myogenic constriction was impaired in SR compared to HA. The consecutive aFID after BP-induced myogenic constriction recovered in HA but remained blunted in SR. Additional assessment of retinal myogenic constriction needs to be considered to improve CV risk stratification and reduce false-positive findings of endothelial dysfunction in otherwise healthy active individuals. Clinical Trial Registration ClinicalTrials.gov: NCT03986892 (https://clinicaltrials.gov/ct2/show/NCT03986892).
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Affiliation(s)
- Lukas Streese
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Anja Vaes
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Denis Infanger
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Ralf Roth
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Henner Hanssen
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
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Lona G, Hauser C, Köchli S, Infanger D, Endes K, Faude O, Hanssen H. Changes in physical activity behavior and development of cardiovascular risk in children. Scand J Med Sci Sports 2021; 31:1313-1323. [PMID: 33527518 DOI: 10.1111/sms.13931] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/19/2021] [Accepted: 01/26/2021] [Indexed: 11/29/2022]
Abstract
The study aimed to investigate the association of changes in physical activity, screen time, and cardiorespiratory fitness (CRF) with development of body mass index (BMI), blood pressure (BP), and retinal microvascular health in children over four years. In 2014, 391 children aged 6-8 years were screened, and thereof 262 children were reexamined after four years following standardized protocols. Retinal arteriolar (CRAE) and venular diameters were measured by a retinal vessel analyzer. CRF was objectively assessed by a 20 m shuttle run, physical activity, and screen time by use of a questionnaire. Children who achieved higher CRF levels reduced their BMI (β [95% CI] -0.35 [-0.46 to -0.25] kg/m2 per stage, P ≤ .001) and thereby developed wider CRAE (β [95% CI] 0.25 [0.24 to 0.48] µm per stage, P = .03) at follow-up. Moreover, children with elevated or high systolic BP at baseline, but lower levels of screen time during the observation period, had wider CRAE at follow-up (β [95% CI] -0.37 [-0.66 to -0.08] µm per 10 min/d, P = .013). Change in CRF was not directly associated with better microvascular health at follow-up. However, an increase of CRF over four years was associated with a reduced BMI and consequently wider retinal arterioles at follow-up. In children with elevated or high systolic BP, a reduction of screen time significantly improved retinal microvascular health as a primary prevention strategy to promote childhood health and combat development of manifest CV disease later in life.
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Affiliation(s)
- Giulia Lona
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Christoph Hauser
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Sabrina Köchli
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Denis Infanger
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Katharina Endes
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Oliver Faude
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Henner Hanssen
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
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Wernhart S, Hedderich J, Wunderlich S, Schauerte K, Weihe E, Dellweg D, Siemon K. The Feasibility of High-Intensity Interval Training in Patients with Intensive Care Unit-Acquired Weakness Syndrome Following Long-Term Invasive Ventilation. SPORTS MEDICINE-OPEN 2021; 7:11. [PMID: 33527199 PMCID: PMC7849616 DOI: 10.1186/s40798-021-00299-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 01/11/2021] [Indexed: 12/17/2022]
Abstract
Background Intensive care unit-acquired weakness syndrome (ICUAWS) can be a consequence of long-term mechanical ventilation. Despite recommendations of early patient mobilisation, little is known about the feasibility, safety and benefit of interval training in early rehabilitation facilities (ERF) after long-term invasive ventilation. Methods and Results We retrospectively analysed two established training protocols of bicycle ergometry in ERF patients after long-term (> 7 days) invasive ventilation (n = 46). Patients conducted moderate continuous (MCT, n = 24, mean age 70.3 ± 10.1 years) or high-intensity interval training (HIIT, n = 22, mean age 63.6 ± 12.6 years). The intensity of training was monitored with the BORG CR10 scale (intense phases ≥ 7/10 and moderate phases ≤ 4/10 points). The primary outcome was improvement (∆-values) of six-minute-walk-test (6 MWT), while the secondary outcomes were improvement of vital capacity (VCmax), forced expiratory volume in 1 s (FEV1), maximal inspiratory pressure (PImax) and functional capabilities (functional independence assessment measure, FIM/FAM and Barthel scores) after 3 weeks of training. No adverse events were observed. There was a trend towards a greater improvement of 6 MWT in HIIT than MCT (159.5 ± 64.9 m vs. 120.4 ± 60.4 m; p = .057), despite more days of invasive ventilation (39.6 ± 16.8 days vs. 26.8 ± 16.2 days; p = .009). VCmax (∆0.5l ± 0.6 vs. ∆0.5l ± 0.3; p = .462), FEV1 (∆0.2l ± 0.3 vs. ∆0.3l ± 0.2; p = .218) PImax (∆0.8 ± 1.1 kPa vs. ∆0.7 ± 1.3pts; p = .918) and functional status (FIM/FAM: ∆29.0 ± 14.8pts vs. ∆30.9 ± 16.0pts; p = .707; Barthel: ∆28.9 ± 16.0 pts vs. ∆25.0 ± 10.5pts; p = .341) improved in HIIT and MCT. Conclusions We demonstrate the feasibility and safety of HIIT in the early rehabilitation of ICUAWS patients. Larger trials are necessary to find adequate dosage of HIIT in ICUAWS patients. Supplementary Information The online version contains supplementary material available at 10.1186/s40798-021-00299-6.
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Affiliation(s)
- Simon Wernhart
- Department of Cardiology, Fachkrankenhaus Kloster Grafschaft, Annostrasse 1, 57392, Schmallenberg, Germany. .,Department of Cardiology and Vascular Medicine, West German Heart- and Vascular Center, University Hospital Essen, University Duisburg-Essen, Hufelandstrasse 55, 45147, Essen, Germany.
| | - Jürgen Hedderich
- Medistat-Biomedical Statistics, Medistat GmbH, Kronshagen, 24119, Germany
| | - Svenja Wunderlich
- Department of Pneumology, Fachkrankenhaus Kloster Grafschaft, Schmallenberg, 57392, Germany
| | - Kunigunde Schauerte
- Department of Pneumology, Fachkrankenhaus Kloster Grafschaft, Schmallenberg, 57392, Germany
| | - Eberhard Weihe
- Institute of Anatomy and Cell Biology of the Philipps-University Marburg, Marburg, 35037, Germany
| | - Dominic Dellweg
- Department of Pneumology, Fachkrankenhaus Kloster Grafschaft, Schmallenberg, 57392, Germany
| | - Karsten Siemon
- Department of Pneumology, Fachkrankenhaus Kloster Grafschaft, Schmallenberg, 57392, Germany
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Lüscher TF. Cardio-oncology: low-grade inflammation as a common pathway of cancer and cardiovascular disease. Eur Heart J 2020; 40:3871-3874. [PMID: 33215667 DOI: 10.1093/eurheartj/ehz928] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- Thomas F Lüscher
- Professor of Cardiology, Imperial College and Director of Research, Education & Development, Royal Brompton and Harefield Hospitals London, UK.,Professor and Chairman, Center for Molecular Cardiology, University of Zurich, Switzerland.,Editor-in-Chief, EHJ Editorial Office, Zurich Heart House, Hottingerstreet 14, 8032 Zurich, Switzerland
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Streese L, Guerini C, Bühlmayer L, Lona G, Hauser C, Bade S, Deiseroth A, Hanssen H. Physical activity and exercise improve retinal microvascular health as a biomarker of cardiovascular risk: A systematic review. Atherosclerosis 2020; 315:33-42. [DOI: 10.1016/j.atherosclerosis.2020.09.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/03/2020] [Accepted: 09/16/2020] [Indexed: 02/07/2023]
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Zinn S, Nelis P, Minnebeck K, Hinder J, Eter N, Brand SM, Gellner R, Vorona E, Alten F, Schmitz B. Effect of high-intensity interval training in patients with type 1 diabetes on physical fitness and retinal microvascular perfusion determined by optical coherence tomography angiography. Microvasc Res 2020; 132:104057. [DOI: 10.1016/j.mvr.2020.104057] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 08/03/2020] [Accepted: 08/08/2020] [Indexed: 12/01/2022]
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32
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Andreato LV. High-Intensity Interval Training: Methodological Considerations for Interpreting Results and Conducting Research. Trends Endocrinol Metab 2020; 31:812-817. [PMID: 32967776 DOI: 10.1016/j.tem.2020.08.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 08/17/2020] [Accepted: 08/24/2020] [Indexed: 12/17/2022]
Abstract
In recent years, high-intensity interval training (HIIT) has gained prominence in the health and fitness area, becoming a worldwide trend. Given the positive results of HIIT, researchers have compared it with moderate-intensity continuous training (MICT). However, much of that research has presented methodological challenges. Therefore, the aim of this opinion article is to address an important risk of bias common in research comparing HIIT and MICT: the lack of equalisation among protocols. This limitation can be considered a risk of bias that limits the conclusions of many studies. Thus, it is necessary to achieve the equalisation of sessions in some way such as using equalisation by energy expenditure, by workload performed in the session, or by duration of the session.
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Affiliation(s)
- Leonardo Vidal Andreato
- Sport and Exercise Psychology Laboratory (LAPE), State University of Santa Catarina, Florianópolis, Santa Catarina, Brazil.
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Physical activity and markers of glycation in older individuals: data from a combined cross-sectional and randomized controlled trial (EXAMIN AGE). Clin Sci (Lond) 2020; 134:1095-1105. [DOI: 10.1042/cs20200255] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 04/23/2020] [Accepted: 05/01/2020] [Indexed: 11/17/2022]
Abstract
AbstractBackground: Advanced glycation end products (AGEs) are protein modifications that are predominantly formed from dicarbonyl compounds that arise from glucose and lipid metabolism. AGEs and sedentary behavior have been identified as a driver of accelerated (vascular) aging. The effect of physical activity on AGE accumulation is unknown. Therefore, we investigated whether plasma AGEs and dicarbonyl levels are different across older individuals that were active or sedentary and whether plasma AGEs are affected by high-intensity interval training (HIIT).Methods: We included healthy older active (HA, n=38, 44.7% female, 60.1 ± 7.7 years old) and healthy older sedentary (HS, n=36, 72.2% female, 60.0 ± 7.3 years old) individuals as well as older sedentary individuals with increased cardiovascular risk (SR, n=84, 50% female, 58.7 ± 6.6 years old). The SR group was randomized into a 12-week walking-based HIIT program or control group. We measured protein-bound and free plasma AGEs and dicarbonyls by ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) at baseline and after the HIIT intervention.Results: Protein-bound AGE Nε-(carboxymethyl)lysine (CML) was lower in SR (2.6 ± 0.5 μmol/l) and HS (3.1 ± 0.5 μmol/l) than in HA (3.6 ± 0.6 μmol/l; P<0.05) and remained significantly lower after adjustment for several potential confounders. None of the other glycation markers were different between HS and HA. HIIT did not change plasma AGEs and dicarbonyls in SR.Discussion: Although lifestyle interventions may act as important modulators of cardiovascular risk, HIIT is not a potent short-term intervention to reduce glycation in older individuals, underlining the need for other approaches, such as pharmacological agents, to reduce AGEs and lower cardiovascular risk in this population.
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Streese L, Brawand LY, Gugleta K, Maloca PM, Vilser W, Hanssen H. New Frontiers in Noninvasive Analysis of Retinal Wall-to-Lumen Ratio by Retinal Vessel Wall Analysis. Transl Vis Sci Technol 2020; 9:7. [PMID: 32821504 PMCID: PMC7408937 DOI: 10.1167/tvst.9.6.7] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 03/04/2020] [Indexed: 12/14/2022] Open
Abstract
Purpose To compare measurement of wall-to-lumen ratio (WLR) by means of high-resolution adaptive optics imaging (AO) with intuitive to use retinal vessel wall (VW) analysis (VWA). Moreover, to validate the techniques by comparing WLR of healthy young (HY) with healthy older patients. Methods Ten retinal VW images of 13 HY (24 ± 2 years) and 16 healthy older (60 ± 8 years) were obtained with AO and VWA. The average of five measurements of VW, retinal vessel lumen and WLR of a single vessel from AO and VWA were calculated and compared. Results WLR of AO and VWA images showed high correlations, r = 0.75, t(27) = 5.98, P < .001, but differed systematically (WLR: VWA, 40 ± 7% and AO, 35 ± 9%; P < .001). Comparable patterns were found for VW and vessel lumen. HY showed significantly lower WLR (AO, 31 ± 8% and VWA, 36 ± 8%) compared with healthy older (AO, 39 ± 9% [P = .012]; VWA, 42 ± 5% [P = .013]). Conclusions Assessment of WLR by VWA showed a good correlation with laborious analysis of the microstructure by high-resolution AO. Measurement of WLR in different age groups indicated good validity. Deviations in VW, vessel lumen, and WLR between AO and VWA can be explained by systematic differences in image scale and resolution. Future studies are needed to investigate the clinical relevance of microvascular WLR assessment by retinal VWA and its prognostic value. Translational Relevance Additional assessment of retinal WLR by use of digital VWA to evaluate microstructural remodeling may prove to be a valuable extension to the current use of retinal vessel diameters as biomarkers of cardiovascular risk.
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Affiliation(s)
- Lukas Streese
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Lukas Y Brawand
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | | | - Peter M Maloca
- Department of Ophthalmology, University of Basel, Basel, Switzerland.,Institute of Molecular and Clinical Ophthalmology Basel (IOB), Basel, Switzerland.,Moorfields Eye Hospital, London, UK
| | - Walthard Vilser
- Institute of Biomedical Engineering and Informatics, Technical University of Ilmenau, Ilmenau, Germany
| | - Henner Hanssen
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
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35
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Lüscher TF. Sports cardiology: the benefits of cardiorespiratory fitness in young adults, the elderly, and patients with arrythmias. Eur Heart J 2020; 41:1455-1458. [PMID: 33216848 DOI: 10.1093/eurheartj/ehaa246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Thomas F Lüscher
- Professor of Cardiology, Imperial College and Director of Research, Education & Development, Royal Brompton and Harefield Hospitals London, UK.,Professor and Chairman, Center for Molecular Cardiology, University of Zurich, Switzerland.,Editor-in-Chief, EHJ Editorial Office, Zurich Heart House, Hottingerstreet 14, 8032 Zurich, Switzerland
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36
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Dimauro I, Paronetto MP, Caporossi D. Exercise, redox homeostasis and the epigenetic landscape. Redox Biol 2020; 35:101477. [PMID: 32127290 PMCID: PMC7284912 DOI: 10.1016/j.redox.2020.101477] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 02/12/2020] [Accepted: 02/23/2020] [Indexed: 02/07/2023] Open
Abstract
Physical exercise represents one of the strongest physiological stimuli capable to induce functional and structural modifications in all biological systems. Indeed, beside the traditional genetic mechanisms, physical exercise can modulate gene expression through epigenetic modifications, namely DNA methylation, post-translational histone modification and non-coding RNA transcripts. Initially considered as merely damaging molecules, it is now well recognized that both reactive oxygen (ROS) and nitrogen species (RNS) produced under voluntary exercise play an important role as regulatory mediators in signaling processes. While robust scientific evidences highlight the role of exercise-associated redox modifications in modulating gene expression through the genetic machinery, the understanding of their specific impact on epigenomic profile is still at an early stage. This review will provide an overview of the role of ROS and RNS in modulating the epigenetic landscape in the context of exercise-related adaptations. Physical exercise can modulate gene expression through epigenetic modifications. Epigenetic regulation of ROS/RNS generating, sensing and neutralizing enzymes can impact the cellular levels of ROS and RNS. ROS might act as modulators of epigenetic machinery, interfering with DNA methylation, hPTMs and ncRNAs expression. Redox homeostasis might hold a relevant role in the epigenetic landscape modulating exercise-related adaptations.
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Affiliation(s)
- Ivan Dimauro
- Unit of Biology and Genetics of Movement, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis 15, 00135, Rome, Italy
| | - Maria Paola Paronetto
- Unit of Biology and Genetics of Movement, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis 15, 00135, Rome, Italy; Laboratory of Cellular and Molecular Neurobiology, IRCCS Fondazione Santa Lucia, Via Del Fosso di Fiorano, Rome, Italy
| | - Daniela Caporossi
- Unit of Biology and Genetics of Movement, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Piazza Lauro de Bosis 15, 00135, Rome, Italy.
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Streese L, Suades R, Cosentino F, Hanssen H. Exercise-induced improvement of microvascular phenotype and reprogramming of p66Shc DNA methylation. Eur Heart J 2019; 40:3948-3949. [DOI: 10.1093/eurheartj/ehz830] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Affiliation(s)
- Lukas Streese
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, 4052 Basel, Switzerland
| | - Rosa Suades
- Cardiology Unit, Department of Medicine Solna, Karolinska Institute & Karolinska University Hospital, 171 76 Stockholm, Sweden
| | - Francesco Cosentino
- Cardiology Unit, Department of Medicine Solna, Karolinska Institute & Karolinska University Hospital, 171 76 Stockholm, Sweden
| | - Henner Hanssen
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, 4052 Basel, Switzerland
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38
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Deiseroth A, Streese L, Köchli S, Wüst RS, Infanger D, Schmidt-Trucksäss A, Hanssen H. Exercise and Arterial Stiffness in the Elderly: A Combined Cross-Sectional and Randomized Controlled Trial (EXAMIN AGE). Front Physiol 2019; 10:1119. [PMID: 31551805 PMCID: PMC6738015 DOI: 10.3389/fphys.2019.01119] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 08/13/2019] [Indexed: 01/10/2023] Open
Abstract
Introduction: Arterial stiffness (AST) is a main determinant of cardiovascular (CV) mortality. Long-term physical activity (PA) is considered to decrease age-related progression of AST but effects of short-term exercise interventions on AST remain unclear. Methods: In a combined cross-sectional and interventional study approach, we investigated the effects of long-term PA and short-term high-intensity interval training (HIIT) on AST in an older population. 147 older individuals (mean age 59 ± 7 years) were assigned to three groups according to their PA and CV risk profile and compared: healthy active (HA, n = 35), healthy sedentary (HS, n = 33) and sedentary at risk (SR, n = 79). In addition, SR were randomized to either 12 weeks of HIIT or standard recommendations. Pulse wave velocity (PWV) was measured by applanation tonometry. Cardiorespiratory fitness (CRF) was performed by symptom-limited spiroergometry to determine maximal oxygen uptake (VO2max). Results: Higher CRF was associated with lower PWV (p < 0.001) and VO2max explained 18% of PWV variance. PWV was higher in SR (8.2 ± 1.4 m/s) compared to HS (7.5 ± 1.6 m/s) and HA (7.0 ± 1.1 m/s; p < 0.001). 12 weeks of HIIT did not change PWV in SR. HIIT-induced reduction in systolic BP was associated with a reduction in PWV (p < 0.05). Discussion: SR show higher PWV compared to HS and long-term PA is associated with lower PWV. Reduction of AST following short-term HIIT seems to depend on a concomitant decrease in blood pressure. Our study puts into perspective the effects of long- and short-term exercise on arterial wall integrity as treatment options for CV prevention in an older population. Clinical Trial Registration: ClinicalTrials.gov: NCT02796976 (https://clinicaltrials.gov/ct2/show/NCT02796976).
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Affiliation(s)
- Arne Deiseroth
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Lukas Streese
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Sabrina Köchli
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Romy Sandra Wüst
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Denis Infanger
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Arno Schmidt-Trucksäss
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
| | - Henner Hanssen
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, Basel, Switzerland
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