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Weaver SRC, Rendeiro C, Lucas RAI, Cable NT, Nightingale TE, McGettrick HM, Lucas SJE. Non-pharmacological interventions for vascular health and the role of the endothelium. Eur J Appl Physiol 2022; 122:2493-2514. [PMID: 36149520 PMCID: PMC9613570 DOI: 10.1007/s00421-022-05041-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 09/05/2022] [Indexed: 12/11/2022]
Abstract
The most common non-pharmacological intervention for both peripheral and cerebral vascular health is regular physical activity (e.g., exercise training), which improves function across a range of exercise intensities and modalities. Numerous non-exercising approaches have also been suggested to improved vascular function, including repeated ischemic preconditioning (IPC); heat therapy such as hot water bathing and sauna; and pneumatic compression. Chronic adaptive responses have been observed across a number of these approaches, yet the precise mechanisms that underlie these effects in humans are not fully understood. Acute increases in blood flow and circulating signalling factors that induce responses in endothelial function are likely to be key moderators driving these adaptations. While the impact on circulating factors and environmental mechanisms for adaptation may vary between approaches, in essence, they all centre around acutely elevating blood flow throughout the circulation and stimulating improved endothelium-dependent vascular function and ultimately vascular health. Here, we review our current understanding of the mechanisms driving endothelial adaptation to repeated exposure to elevated blood flow, and the interplay between this response and changes in circulating factors. In addition, we will consider the limitations in our current knowledge base and how these may be best addressed through the selection of more physiologically relevant experimental models and research. Ultimately, improving our understanding of the unique impact that non-pharmacological interventions have on the vasculature will allow us to develop superior strategies to tackle declining vascular function across the lifespan, prevent avoidable vascular-related disease, and alleviate dependency on drug-based interventions.
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Affiliation(s)
- Samuel R C Weaver
- School of Sport, Exercise and Rehabilitation Sciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, UK.
- Centre for Human Brain Health, University of Birmingham, Birmingham, UK.
| | - Catarina Rendeiro
- School of Sport, Exercise and Rehabilitation Sciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, UK
- Centre for Human Brain Health, University of Birmingham, Birmingham, UK
| | - Rebekah A I Lucas
- School of Sport, Exercise and Rehabilitation Sciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, UK
| | - N Timothy Cable
- Institute of Sport, Manchester Metropolitan University, Manchester, UK
| | - Tom E Nightingale
- School of Sport, Exercise and Rehabilitation Sciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, UK
| | - Helen M McGettrick
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Samuel J E Lucas
- School of Sport, Exercise and Rehabilitation Sciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, UK
- Centre for Human Brain Health, University of Birmingham, Birmingham, UK
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Yücel C, Gürsoy M, Ketenciler S, Tenekeciğil A, Kızıltan F, Kayalar N. Is Biochemical Follow Up Possible in Peripheral Arterial Disease Treatment: Hypoxia Inducible Factor-1 Alpha? Vasc Specialist Int 2021; 37:29. [PMID: 34429387 PMCID: PMC8385279 DOI: 10.5758/vsi.210011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 06/30/2021] [Accepted: 07/17/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose The hypoxia inducible factor (HIF)-1 is a dimeric protein complex that plays an integral role in the body’s response to hypoxia. This study aimed to analyze the regulation of HIF-1α following vascular and/or endovascular surgery in peripheral arterial disease (PAD) patients. Methods Materials and A total of 40 patients with PAD (≥Rutherford category 3) were included in this prospective study. The mean age was 61.9±9.2 years. Open surgery was performed in 16 patients, and endovascular intervention was performed in 34 patients. At preoperative (T1), postoperative day 1 (T2), and month 3 (T3), the serum HIF-1α levels were checked using the ELISA technique. Results At T3, the ankle-brachial index was significantly higher than the preoperative value (P<0.001). Serum HIF-1α levels at T1, T2, and T3 were 2.0±1.7 ng/mL, 1.9±1.7 ng/mL, and 1.6±1.4 ng/mL, respectively. Serum HIF-1α levels between T1 and T3 and between T2 and T3 were significantly different (P<0.05). The preoperative HIF-1α levels were lowest in iliac lesions compared to femoropopliteal or tibial lesions. Conclusion The HIF-1α levels were decreased in all patients on postoperative days, T2 and T3, compared with the preoperative values. Our results indicated that HIF-1α may be a surrogate marker after revascularization in patients with PAD. Further studies are needed to analyze the sensitivity, specificity, and cut-off values of HIF-1α in patients with PAD.
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Affiliation(s)
- Cihan Yücel
- Department of Cardiovascular Surgery, Prof Dr Cemil Tascıoglu City Hospital, İstanbul, Turkey
| | - Mete Gürsoy
- Department of Cardiovascular Surgery, Prof Dr Cemil Tascıoglu City Hospital, İstanbul, Turkey
| | - Serkan Ketenciler
- Department of Cardiovascular Surgery, Prof Dr Cemil Tascıoglu City Hospital, İstanbul, Turkey
| | - Aslıhan Tenekeciğil
- Medical Laboratory, Bağcılar Training and Research Hospital, İstanbul, Turkey
| | - Feryaz Kızıltan
- Department of Cardiovascular Surgery, Prof Dr Cemil Tascıoglu City Hospital, İstanbul, Turkey
| | - Nihan Kayalar
- Department of Cardiovascular Surgery, Prof Dr Cemil Tascıoglu City Hospital, İstanbul, Turkey
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Efron N. Contact lens wear is intrinsically inflammatory. Clin Exp Optom 2021; 100:3-19. [DOI: 10.1111/cxo.12487] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 05/07/2016] [Accepted: 06/09/2016] [Indexed: 11/28/2022] Open
Affiliation(s)
- Nathan Efron
- Institute of Health and Biomedical Innovation and School of Optometry and Vision Science, Queensland University of Technology, Kelvin Grove, Queensland, Australia,
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BOOS CJ, LAMB CM, MIDWINTER M, MELLOR A, WOODS DR, HOWLEY M, STANSFIELD T, FOSTER M, O’HARA JP. The Effects of Acute Hypoxia on Tissue Oxygenation and Circulating Alarmins in Healthy Adults. Physiol Res 2018; 67:935-943. [PMID: 29750887 DOI: 10.33549/physiolres.933743] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
The binding of high-mobility group box-1 (HMGB-1) to the membrane receptor for advanced glycation end-products (mRAGE) is a key early mediator of non-infectious inflammation and its triggers include ischaemia/hypoxia. The effects of acute hypoxia on soluble RAGE (sRAGE) are unknown. Fourteen healthy adults (50 % women; 26.6±3.8 years) were assessed at baseline normoxia (T0), followed by four time-points (T90, 95, 100 and 180 min) over three hours of continuous normobaric hypoxia (NH, 4,450 m equivalent) and again 60 min after return to normoxia (T240). A 5-min exercise step test was performed during NH at T90. Plasma concentrations of HMGB-1, sRAGE VCAM-1, ICAM-1, VEGF IL-8 and IL-13 were measured using venous blood. Arterial and tissue oxygen saturations were measured using pulse oximetry (SpO2) and near-infrared spectroscopy (StO2), respectively. NH led to a significant reduction in SpO2, StO2, sRAGE and VEGF, which was compounded by exercise, before increasing to baseline values with normoxic restoration (T240). NH-exercise led to a paired increase in HMGB-1. sRAGE inversely correlated with HMGB-1 (r=-0.32; p=0.006), heart rate (r=-0.43; p=0.004) but was not linked to SpO2 or StO2. In conclusion, short-term NH leads to a fall in sRAGE and VEGF concentrations with a transient rise post NH-exercise in HMGB-1.
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Affiliation(s)
- C. J. BOOS
- Department of Cardiology, Poole Hospital NHS Foundation Trust, Poole, UK
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Müller AS, Janjić K, Lilaj B, Edelmayer M, Agis H. Hypoxia-based strategies for regenerative dentistry—Views from the different dental fields. Arch Oral Biol 2017; 81:121-130. [DOI: 10.1016/j.archoralbio.2017.04.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 03/24/2017] [Accepted: 04/25/2017] [Indexed: 12/20/2022]
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Kiers HD, Scheffer GJ, van der Hoeven JG, Eltzschig HK, Pickkers P, Kox M. Immunologic Consequences of Hypoxia during Critical Illness. Anesthesiology 2016; 125:237-49. [PMID: 27183167 PMCID: PMC5119461 DOI: 10.1097/aln.0000000000001163] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Hypoxia and immunity are highly intertwined at clinical, cellular, and molecular levels. The prevention of tissue hypoxia and modulation of systemic inflammation are cornerstones of daily practice in the intensive care unit. Potentially, immunologic effects of hypoxia may contribute to outcome and represent possible therapeutic targets. Hypoxia and activation of downstream signaling pathways result in enhanced innate immune responses, aimed to augment pathogen clearance. On the other hand, hypoxia also exerts antiinflammatory and tissue-protective effects in lymphocytes and other tissues. Although human data on the net immunologic effects of hypoxia and pharmacologic modulation of downstream pathways are limited, preclinical data support the concept of tailoring the immune response through modulation of the oxygen status or pharmacologic modulation of hypoxia-signaling pathways in critically ill patients.
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Affiliation(s)
- Harmke D. Kiers
- Department of Intensive Care Medicine, Radboud university medical center, Nijmegen, The Netherlands
- Department of Anesthesiology, Radboud university medical center, Nijmegen, The Netherlands
- Radboud Centre for Infectious Diseases (RCI), Nijmegen, The Netherlands
| | - Gert-Jan Scheffer
- Department of Anesthesiology, Radboud university medical center, Nijmegen, The Netherlands
| | - Johannes G. van der Hoeven
- Department of Intensive Care Medicine, Radboud university medical center, Nijmegen, The Netherlands
- Radboud Centre for Infectious Diseases (RCI), Nijmegen, The Netherlands
| | - Holger K. Eltzschig
- Organ Protection Program; Department of Anesthesiology, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Peter Pickkers
- Department of Intensive Care Medicine, Radboud university medical center, Nijmegen, The Netherlands
- Radboud Centre for Infectious Diseases (RCI), Nijmegen, The Netherlands
| | - Matthijs Kox
- Department of Intensive Care Medicine, Radboud university medical center, Nijmegen, The Netherlands
- Department of Anesthesiology, Radboud university medical center, Nijmegen, The Netherlands
- Radboud Centre for Infectious Diseases (RCI), Nijmegen, The Netherlands
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Shatylo VB, Serebrovska TV, Gavalko AV, Egorov E, Korkushko OV. Acute Hypoxic Test in Patients with Prediabetes. High Alt Med Biol 2016; 17:101-7. [DOI: 10.1089/ham.2015.0117] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Valerii B. Shatylo
- Department of Physiology and Pathology of Internal Organs, D.F. Chebotarev State Institute of Gerontology, Kiev, Ukraine
| | | | - Anna V. Gavalko
- Department of Physiology and Pathology of Internal Organs, D.F. Chebotarev State Institute of Gerontology, Kiev, Ukraine
| | | | - Oleg V. Korkushko
- Department of Physiology and Pathology of Internal Organs, D.F. Chebotarev State Institute of Gerontology, Kiev, Ukraine
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