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Ji J, Chen D, Ni J, Chang F. Research Advances in Vascular Remodeling in Choke Vessels of Perforator Flap: A Systematic Review. Ann Plast Surg 2024; 93:268-275. [PMID: 38775375 DOI: 10.1097/sap.0000000000003980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/19/2024]
Abstract
BACKGROUND As a significant bridge between perforasomes, choke vessels are the key structure of blood supply expansion, also a prerequisite for preventing distal ischemic necrosis of the multiterritory perforator flap, where the remodeling of choke vessels after flap elevation plays an essential role. This systematic review highlights the underlying mechanisms and clinical ways to promote remodeling of choke vessels, as well as experimental observation approaches to further guide researchers. METHODS A systematic review was conducted from 1975 to 2023 through PubMed, EMBASE, Web of Science, and Cochrane database with the key words "choke vessels" and "perforator flap" to investigate the mechanisms and ways to promote remodeling of choke vessels as well as observation approaches. The inclusion criteria and exclusion criteria were set to screen the literature. RESULTS A total of 94 literatures were obtained through database retrieval. After removing the duplicate literature, reading the title and abstract, and reviewing the full text finally, 33 articles were included in the final study. CONCLUSIONS The underlying remodeling of choke vessels may be related to fluid shear stress, hypoxia, and inflammation. The clinical ways to promote remodeling of choke vessels include surgical delay, arterial supercharge, venous superdrainage, drugs, and stem cells. Various experimental methods of observing microvascular morphology allow for a comprehensive research of choke vessels.
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Affiliation(s)
- Jiahao Ji
- From the Department of Plastic and Burns Surgery, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, China
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2
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Wahlstrøm KL, Balsevicius L, Hansen HF, Kvist M, Burcharth J, Skovsted G, Lykkesfeldt J, Gögenur I, Ekeloef S. Remote ischaemic preconditioning on gene expression and circulating proteins after subacute laparoscopic cholecystectomy: randomized clinical trial. BJS Open 2024; 8:zrae067. [PMID: 39076000 PMCID: PMC11287053 DOI: 10.1093/bjsopen/zrae067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/17/2024] [Accepted: 05/17/2024] [Indexed: 07/31/2024] Open
Abstract
BACKGROUND Surgical stress may lead to postsurgical hypercoagulability, endothelial dysfunction and systemic inflammation, which can impact on patient recovery. Remote ischaemic preconditioning is a procedure that activates the body's endogenous defences against ischaemia and reperfusion injury. Studies have suggested that remote ischaemic preconditioning has antithrombotic, antioxidative and anti-inflammatory effects. The hypothesis was that remote ischaemic preconditioning reduces surgery-induced systemic stress response. METHOD During a 24-month period (2019-2021), adult patients undergoing subacute laparoscopic cholecystectomy due to acute cholecystitis were randomized to remote ischaemic preconditioning or control. Remote ischaemic preconditioning was performed less than 4 h before surgery on the upper arm. It consisted of four cycles of 5 min ischaemia and 5 min reperfusion. The gene expression of 750 genes involved in inflammatory processes, oxidative stress and endothelial function was investigated preoperatively and 2-4 h after surgery in both groups. In addition, changes in 20 inflammation- and vascular trauma-associated proteins were assessed preoperatively, 2-4 h after surgery and 24 h after surgery. RESULTS A total of 60 patients were randomized. There were no statistically significant differences in gene expression 2-4 h after surgery between the groups (P > 0.05). Remote ischaemic preconditioning did not affect concentrations of circulating proteins up to 24 h after surgery (P > 0.05). CONCLUSION The study did not demonstrate any effect of remote ischaemic preconditioning on expression levels of the chosen genes or in circulating immunological cytokines and vascular trauma-associated proteins up to 24 h after subacute laparoscopic cholecystectomy in patients with acute cholecystitis.
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Affiliation(s)
- Kirsten L Wahlstrøm
- Center for Surgical Science, Department of Surgery, Zealand University Hospital, Køge, Denmark
| | - Lukas Balsevicius
- Center for Surgical Science, Department of Surgery, Zealand University Hospital, Køge, Denmark
| | - Hannah F Hansen
- Center for Surgical Science, Department of Surgery, Zealand University Hospital, Køge, Denmark
| | - Madeline Kvist
- Center for Surgical Science, Department of Surgery, Zealand University Hospital, Køge, Denmark
| | - Jakob Burcharth
- Center for Surgical Science, Department of Surgery, Zealand University Hospital, Køge, Denmark
| | - Gry Skovsted
- Section of Experimental Animal Models, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jens Lykkesfeldt
- Section of Experimental Animal Models, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Ismail Gögenur
- Center for Surgical Science, Department of Surgery, Zealand University Hospital, Køge, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Sarah Ekeloef
- Center for Surgical Science, Department of Surgery, Zealand University Hospital, Køge, Denmark
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Przewłócka K, Korewo-Labelle D, Berezka P, Karnia MJ, Kaczor JJ. Current Aspects of Selected Factors to Modulate Brain Health and Sports Performance in Athletes. Nutrients 2024; 16:1842. [PMID: 38931198 PMCID: PMC11206260 DOI: 10.3390/nu16121842] [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: 05/21/2024] [Revised: 06/10/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024] Open
Abstract
This review offers a comprehensive evaluation of current aspects related to nutritional strategies, brain modulation, and muscle recovery, focusing on their applications and the underlying mechanisms of physiological adaptation for promoting a healthy brain, not only in athletes but also for recreationally active and inactive individuals. We propose that applying the rule, among others, of good sleep, regular exercise, and a properly balanced diet, defined as "SPARKS", will have a beneficial effect on the function and regeneration processes of the gut-brain-muscle axis. However, adopting the formula, among others, of poor sleep, stress, overtraining, and dysbiosis, defined as "SMOULDER", will have a detrimental impact on the function of this axis and consequently on human health as well as on athletes. Understanding these dynamics is crucial for optimizing brain health and cognitive function. This review highlights the significance of these factors for overall well-being, suggesting that adopting the "SPARKS" approach may benefit not only athletes but also older adults and individuals with health conditions.
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Affiliation(s)
- Katarzyna Przewłócka
- Division of Physiology, Gdansk University of Physical Education and Sport, 80-336 Gdansk, Poland;
| | - Daria Korewo-Labelle
- Department of Physiology, Faculty of Medicine, Medical University of Gdansk, 80-211 Gdansk, Poland;
| | - Paweł Berezka
- Department of Animal and Human Physiology, Faculty of Biology, University of Gdansk, 80-309 Gdansk, Poland; (P.B.); (M.J.K.)
| | - Mateusz Jakub Karnia
- Department of Animal and Human Physiology, Faculty of Biology, University of Gdansk, 80-309 Gdansk, Poland; (P.B.); (M.J.K.)
| | - Jan Jacek Kaczor
- Department of Animal and Human Physiology, Faculty of Biology, University of Gdansk, 80-309 Gdansk, Poland; (P.B.); (M.J.K.)
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4
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Zhao T, Li M, Yan Q, Gu J, Liu L. Effect of remote ischemic preconditioning intervention on serum levels of microRNA-582-5p/HMGB1 in patients with acute cerebral infarction. Clin Neurol Neurosurg 2024; 241:108291. [PMID: 38701547 DOI: 10.1016/j.clineuro.2024.108291] [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: 06/24/2023] [Revised: 08/29/2023] [Accepted: 04/18/2024] [Indexed: 05/05/2024]
Abstract
OBJECTIVE Acute cerebral infarction (ACI) contributes to disability and death accross the globe. Remote ischemic preconditioning (RIPC) reduces cerebral infarct size and improves neurological function in ACI. We conducted this research to reveal the effects of RIPC intervention on serum levels of microRNA-582-5p (miR-582-5p)/high mobility group box-1 protein (HMGB1), inflammation, oxidative stress and neurological function in patients with ACI. METHODS In this study, 158 patients with ACI were prospectively selected and randomized into the control (administered symptomatic medication alone) and the RIPC (underwent RIPC of the limbs based on medication) groups, with their clinical baseline data documented. Serum levels of miR-582-5p, and HMGB1 and inflammatory factors [tumor necrosis factor alpha (TNF-α)/interleukin-1beta (IL-1β)/IL-10] were assessed by RT-qPCR/ELISA, followed by comparisons of oxidative stress indices [glutathione-peroxidase (GSH-Px)/catalase (CAT)/superoxide dismutase (SOD)] using a fully automatic biochemical analyzer. Correlations between serum miR-582-5p with serum HMGB1, and between their levels with TNF-α/IL-1β/IL-10 were analyzed by Pearson analysis. The NIHSS score/Barthel Index scale were used to assess neurological function/daily living ability. Intervention safety for ACI patients was evaluated. RESULTS RIPC intervention increased serum miR-582-5p levels and decreased serum HMGB1 levels in ACI patients. RIPC intervention significantly reduced inflammation (diminished TNF-α/IL-1β levels, increased IL-10 level) and oxidative stress (elevated GSH-Px/CAT/SOD levels) in ACI patients. Serum miR-582-5p was negatively correlated with TNF-α and IL-1β levels, while positively correlated with IL-10 level, while HMGB1 was positively correlated with TNF-α and IL-1β levels, while negatively correlated with IL-10 level. miR-582-5p was negatively correlated with HMGB1. RIPC intervention improved neurological function (reduced NIHSS, increased Barthel scores) in ACI patients to some extent. RIPC had certain effectiveness and safety in the treatment of ACI. CONCLUSION After RIPC intervention, serum miR-582-5p levels were increased, HMGB1 levels were decreased, and inflammation and oxidative stress were reduced in ACI patients, which mitigated neurological deficits, improved patients' ability to perform life activities, and exerted neuroprotective effects to some extent.
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Affiliation(s)
- Ting Zhao
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, Hebei 061000, China.
| | - Meng Li
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, Hebei 061000, China
| | - Qiuyue Yan
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, Hebei 061000, China
| | - Juxian Gu
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, Hebei 061000, China
| | - Lige Liu
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, Hebei 061000, China
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Chen CH, Ganesh A. Remote Ischemic Conditioning in Stroke Recovery. Phys Med Rehabil Clin N Am 2024; 35:319-338. [PMID: 38514221 DOI: 10.1016/j.pmr.2023.06.006] [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] [Indexed: 03/23/2024]
Abstract
Remote ischemic conditioning (RIC) is a therapeutic strategy to protect a vital organ like the brain from ischemic injury through brief and repeat cycles of ischemia and reperfusion in remote body parts such as arm or leg. RIC has been applied in different aspects of the stroke field and has shown promise. This narrative review will provide an overview of how to implement RIC in stroke patients, summarize the clinical evidence of RIC on stroke recovery, and discuss unresolved questions and future study directions.
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Affiliation(s)
- Chih-Hao Chen
- Department of Clinical Neurosciences, University of Calgary, HMRB Room 103, 3280 Hospital Drive, NW Calgary, Alberta, Canada T2N 4Z6; Department of Neurology, National Taiwan University Hospital, No.1, Changde Street, Zhongzheng District, Taipei City 100229, Taiwan (R.O.C.)
| | - Aravind Ganesh
- Department of Clinical Neurosciences, University of Calgary, HMRB Room 103, 3280 Hospital Drive, NW Calgary, Alberta, Canada T2N 4Z6.
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Barrère-Lemaire S, Vincent A, Jorgensen C, Piot C, Nargeot J, Djouad F. Mesenchymal stromal cells for improvement of cardiac function following acute myocardial infarction: a matter of timing. Physiol Rev 2024; 104:659-725. [PMID: 37589393 DOI: 10.1152/physrev.00009.2023] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 07/05/2023] [Accepted: 08/16/2023] [Indexed: 08/18/2023] Open
Abstract
Acute myocardial infarction (AMI) is the leading cause of cardiovascular death and remains the most common cause of heart failure. Reopening of the occluded artery, i.e., reperfusion, is the only way to save the myocardium. However, the expected benefits of reducing infarct size are disappointing due to the reperfusion paradox, which also induces specific cell death. These ischemia-reperfusion (I/R) lesions can account for up to 50% of final infarct size, a major determinant for both mortality and the risk of heart failure (morbidity). In this review, we provide a detailed description of the cell death and inflammation mechanisms as features of I/R injury and cardioprotective strategies such as ischemic postconditioning as well as their underlying mechanisms. Due to their biological properties, the use of mesenchymal stromal/stem cells (MSCs) has been considered a potential therapeutic approach in AMI. Despite promising results and evidence of safety in preclinical studies using MSCs, the effects reported in clinical trials are not conclusive and even inconsistent. These discrepancies were attributed to many parameters such as donor age, in vitro culture, and storage time as well as injection time window after AMI, which alter MSC therapeutic properties. In the context of AMI, future directions will be to generate MSCs with enhanced properties to limit cell death in myocardial tissue and thereby reduce infarct size and improve the healing phase to increase postinfarct myocardial performance.
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Affiliation(s)
- Stéphanie Barrère-Lemaire
- Institut de Génomique Fonctionnelle, Université de Montpellier, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, Montpellier, France
- LabEx Ion Channel Science and Therapeutics, Université de Nice, Nice, France
| | - Anne Vincent
- Institut de Génomique Fonctionnelle, Université de Montpellier, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, Montpellier, France
- LabEx Ion Channel Science and Therapeutics, Université de Nice, Nice, France
| | - Christian Jorgensen
- Institute of Regenerative Medicine and Biotherapies, Université de Montpellier, Institut National de la Santé et de la Recherche Médicale, Montpellier, France
- Centre Hospitalier Universitaire Montpellier, Montpellier, France
| | - Christophe Piot
- Département de Cardiologie Interventionnelle, Clinique du Millénaire, Montpellier, France
| | - Joël Nargeot
- Institut de Génomique Fonctionnelle, Université de Montpellier, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, Montpellier, France
- LabEx Ion Channel Science and Therapeutics, Université de Nice, Nice, France
| | - Farida Djouad
- Institute of Regenerative Medicine and Biotherapies, Université de Montpellier, Institut National de la Santé et de la Recherche Médicale, Montpellier, France
- Centre Hospitalier Universitaire Montpellier, Montpellier, France
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7
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Xiao Y, Zhang S, Ren Q. The New Orientation of Postoperative Analgesia: Remote Ischemic Preconditioning. J Pain Res 2024; 17:1145-1152. [PMID: 38524690 PMCID: PMC10959302 DOI: 10.2147/jpr.s455127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/13/2024] [Indexed: 03/26/2024] Open
Abstract
Purpose of Review Postoperative analgesia is currently a significant topic in anesthesiology. Currently, the predominant approach for achieving multimodal analgesia involves the utilization of pharmacotherapy and regional anesthesia procedures. The primary objectives of this approach are to mitigate postoperative pain, enhance patient satisfaction, and diminish overall opioid usage. Nevertheless, there is a scarcity of research on the use of remote ischemia preconditioning aimed at mitigating postoperative pain. Recent Findings Transient stoppage of blood flow to an organ has been found to elicit remote ischemia preconditioning (RIPC), which serves as a potent intrinsic mechanism for protecting numerous organs. In addition to its established role in protecting against reperfusion injury, RIPC has recently been identified as having potential benefits in the context of postoperative analgesia. Summary In addition to traditional perioperative analgesia, RIPC provides perioperative analgesia and organ protection.
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Affiliation(s)
- Yunyu Xiao
- Department of Anesthesiology, Hangzhou Ninth People’s Hospital, Hangzhou, Zhejiang, 311225, People’s Republic of China
| | - Shaofeng Zhang
- Department of Anesthesiology, Hangzhou Ninth People’s Hospital, Hangzhou, Zhejiang, 311225, People’s Republic of China
| | - Qiusheng Ren
- Department of Anesthesiology, Hangzhou Ninth People’s Hospital, Hangzhou, Zhejiang, 311225, People’s Republic of China
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Zhang H, Hu H, Zhai C, Jing L, Tian H. Cardioprotective Strategies After Ischemia-Reperfusion Injury. Am J Cardiovasc Drugs 2024; 24:5-18. [PMID: 37815758 PMCID: PMC10806044 DOI: 10.1007/s40256-023-00614-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/28/2023] [Indexed: 10/11/2023]
Abstract
Acute myocardial infarction (AMI) is associated with high morbidity and mortality worldwide. Although early reperfusion is the most effective strategy to salvage ischemic myocardium, reperfusion injury can develop with the restoration of blood flow. Therefore, it is important to identify protection mechanisms and strategies for the heart after myocardial infarction. Recent studies have shown that multiple intracellular molecules and signaling pathways are involved in cardioprotection. Meanwhile, device-based cardioprotective modalities such as cardiac left ventricular unloading, hypothermia, coronary sinus intervention, supersaturated oxygen (SSO2), and remote ischemic conditioning (RIC) have become important areas of research. Herein, we review the molecular mechanisms of cardioprotection and cardioprotective modalities after ischemia-reperfusion injury (IRI) to identify potential approaches to reduce mortality and improve prognosis in patients with AMI.
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Affiliation(s)
- Honghong Zhang
- Department of Cardiology, Affiliated Hospital of Jiaxing University: First Hospital of Jiaxing, No. 1882 Zhonghuan South Road, Jiaxing, 314000, Zhejiang, People's Republic of China
| | - Huilin Hu
- Department of Cardiology, Affiliated Hospital of Jiaxing University: First Hospital of Jiaxing, No. 1882 Zhonghuan South Road, Jiaxing, 314000, Zhejiang, People's Republic of China.
| | - Changlin Zhai
- Department of Cardiology, Affiliated Hospital of Jiaxing University: First Hospital of Jiaxing, No. 1882 Zhonghuan South Road, Jiaxing, 314000, Zhejiang, People's Republic of China
| | - Lele Jing
- Department of Cardiology, Affiliated Hospital of Jiaxing University: First Hospital of Jiaxing, No. 1882 Zhonghuan South Road, Jiaxing, 314000, Zhejiang, People's Republic of China
| | - Hongen Tian
- Department of Cardiology, Affiliated Hospital of Jiaxing University: First Hospital of Jiaxing, No. 1882 Zhonghuan South Road, Jiaxing, 314000, Zhejiang, People's Republic of China
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Wu YK, Wecht JM, Bloom OE, Panza GS, Harel NY. Remote Ischemic conditioning as an emerging tool to improve corticospinal transmission in individuals with chronic spinal cord injury. Curr Opin Neurol 2023; 36:523-530. [PMID: 37865833 DOI: 10.1097/wco.0000000000001216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2023]
Abstract
PURPOSE OF REVIEW Remote ischemic conditioning (RIC) involves transient blood flow restriction to one limb leading to systemic tissue-protective effects. RIC shares some potential underlying mechanisms with intermittent hypoxia (IH), in which brief bouts of systemic hypoxia trigger increases in growth factor expression and neural plasticity. RIC has shown promise in acute myocardial infarction and stroke but may be applicable toward chronic neuropathology as well. Consequently, this review discusses similarities and differences between RIC and IH and presents preliminary and ongoing research findings regarding RIC. RECENT FINDINGS Several publications demonstrated that combining RIC with motor training may enhance motor learning in adults with intact nervous systems, though the precise mechanisms were unclear. Our own preliminary data has found that RIC, in conjunction with task specific exercise, can increase corticospinal excitability in a subset of people without neurological injury and in those with chronic cervical spinal cord injury or amyotrophic lateral sclerosis. SUMMARY RIC is a low-cost intervention easy to deliver in a clinical or home setting. Its potential application to facilitate neural plasticity and motor learning during rehabilitation training for individuals with chronic neurological disorders is a novel concept requiring further investigation to characterize mechanisms, safety, and efficacy.
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Affiliation(s)
- Yu-Kuang Wu
- Icahn School of Medicine at Mount Sinai
- James J. Peters VA Medical Center
| | - Jill M Wecht
- Icahn School of Medicine at Mount Sinai
- James J. Peters VA Medical Center
| | - Ona E Bloom
- James J. Peters VA Medical Center
- The Feinstein Institute for Medical Research
- The Zucker School of Medicine at Hofstra Northwell
| | - Gino S Panza
- The Department of Healthcare Science Program of Occupational Therapy, Wayne State University
- John D. Dingell VA Medical Center, USA
| | - Noam Y Harel
- Icahn School of Medicine at Mount Sinai
- James J. Peters VA Medical Center
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10
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Liang Y, Ruan W, Jiang Y, Smalling R, Yuan X, Eltzschig HK. Interplay of hypoxia-inducible factors and oxygen therapy in cardiovascular medicine. Nat Rev Cardiol 2023; 20:723-737. [PMID: 37308571 PMCID: PMC11014460 DOI: 10.1038/s41569-023-00886-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/01/2023] [Indexed: 06/14/2023]
Abstract
Mammals have evolved to adapt to differences in oxygen availability. Although systemic oxygen homeostasis relies on respiratory and circulatory responses, cellular adaptation to hypoxia involves the transcription factor hypoxia-inducible factor (HIF). Given that many cardiovascular diseases involve some degree of systemic or local tissue hypoxia, oxygen therapy has been used liberally over many decades for the treatment of cardiovascular disorders. However, preclinical research has revealed the detrimental effects of excessive use of oxygen therapy, including the generation of toxic oxygen radicals or attenuation of endogenous protection by HIFs. In addition, investigators in clinical trials conducted in the past decade have questioned the excessive use of oxygen therapy and have identified specific cardiovascular diseases in which a more conservative approach to oxygen therapy could be beneficial compared with a more liberal approach. In this Review, we provide numerous perspectives on systemic and molecular oxygen homeostasis and the pathophysiological consequences of excessive oxygen use. In addition, we provide an overview of findings from clinical studies on oxygen therapy for myocardial ischaemia, cardiac arrest, heart failure and cardiac surgery. These clinical studies have prompted a shift from liberal oxygen supplementation to a more conservative and vigilant approach to oxygen therapy. Furthermore, we discuss the alternative therapeutic strategies that target oxygen-sensing pathways, including various preconditioning approaches and pharmacological HIF activators, that can be used regardless of the level of oxygen therapy that a patient is already receiving.
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Affiliation(s)
- Yafen Liang
- Department of Anaesthesiology, Critical Care and Pain Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA.
| | - Wei Ruan
- Department of Anaesthesiology, Critical Care and Pain Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Yandong Jiang
- Department of Anaesthesiology, Critical Care and Pain Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Richard Smalling
- Department of Cardiology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Xiaoyi Yuan
- Department of Anaesthesiology, Critical Care and Pain Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Holger K Eltzschig
- Department of Anaesthesiology, Critical Care and Pain Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
- Outcomes Research Consortium, Cleveland, OH, USA
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Castilla-López C, Romero-Franco N. Blood Flow Restriction Is Not Useful as Soccer Competition Recovery in Youth Male National-Level Soccer Players: A Crossover Randomised Controlled Trial. Sports (Basel) 2023; 11:sports11050099. [PMID: 37234055 DOI: 10.3390/sports11050099] [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: 03/30/2023] [Revised: 05/04/2023] [Accepted: 05/05/2023] [Indexed: 05/27/2023] Open
Abstract
In soccer, blood flow restriction (BFR) is used to optimise between-match recovery. However, the benefits are unclear. This study evaluated the effects of BFR as a recovery strategy after a competition on countermovement jump (CMJ) height, rating of perceived exertion (RPE) and the wellness of soccer players. Forty national-level soccer players were allocated into two conditions: BFR (an active recovery session wearing a BFR device, 24 h after a competition) or NoBFR (the same recovery without BFR). CMJ, RPE and wellness were evaluated the day (CMJ and RPE) or the morning (wellness) before the competition; just after the competition (CMJ and RPE); and 24, 48 (wellness) and 72 h later. After 4 weeks, the players changed conditions. All players showed impaired CMJ (p = 0.013), RPE (p < 0.001) and wellness (p < 0.001) after the match compared with the baseline. The CMJ returned to the baseline 24 h later and wellness returned 48 h later. Only in the BFR condition did the RPE remain impaired 24 h after the match, which was also the moment after finishing the BFR recovery session (p < 0.001). BFR during active recovery does not provide any additional benefits compared with traditional exercise modalities to recover CMJ, RPE and wellness in youth national-level soccer players. BFR could even induce an immediate higher RPE.
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Affiliation(s)
| | - Natalia Romero-Franco
- Nursing and Physiotherapy Department, University of the Balearic Islands, E-07122 Palma de Mallorca, Spain
- Health Research Institute of the Balearic Islands (IdISBa), E-07120 Palma de Mallorca, Spain
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12
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Leung CH, Rizoli SB, Trypcic S, Rhind SG, Battista AP, Ailenberg M, Rotstein OD. Effect of remote ischemic conditioning on the immune-inflammatory profile in patients with traumatic hemorrhagic shock in a randomized controlled trial. Sci Rep 2023; 13:7025. [PMID: 37120600 PMCID: PMC10148877 DOI: 10.1038/s41598-023-33681-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 04/17/2023] [Indexed: 05/01/2023] Open
Abstract
Resuscitation induced ischemia/reperfusion predisposes trauma patients to systemic inflammation and organ dysfunction. We investigated the effect of remote ischemic conditioning (RIC), a treatment shown to prevent ischemia/reperfusion injury in experimental models of hemorrhagic shock/resuscitation, on the systemic immune-inflammatory profile in trauma patients in a randomized trial. We conducted a prospective, single-centre, double-blind, randomized, controlled trial involving trauma patients sustaining blunt or penetrating trauma in hemorrhagic shock admitted to a Level 1 trauma centre. Patients were randomized to receive RIC (four cycles of 5-min pressure cuff inflation at 250 mmHg and deflation on the thigh) or a Sham intervention. The primary outcomes were neutrophil oxidative burst activity, cellular adhesion molecule expression, and plasma levels of myeloperoxidase, cytokines and chemokines in peripheral blood samples, drawn at admission (pre-intervention), 1 h, 3 h, and 24 h post-admission. Secondary outcomes included ventilator, ICU and hospital free days, incidence of nosocomial infections, 24 h and 28 day mortality. 50 eligible patients were randomized; of which 21 in the Sham group and 18 in the RIC group were included in the full analysis. No treatment effect was observed between Sham and RIC groups for neutrophil oxidative burst activity, adhesion molecule expression, and plasma levels of myeloperoxidase and cytokines. RIC prevented significant increases in Th2 chemokines TARC/CCL17 (P < 0.01) and MDC/CCL22 (P < 0.05) at 24 h post-intervention in comparison to the Sham group. Secondary clinical outcomes were not different between groups. No adverse events in relation to the RIC intervention were observed. Administration of RIC was safe and did not adversely affect clinical outcomes. While trauma itself modified several immunoregulatory markers, RIC failed to alter expression of the majority of markers. However, RIC may influence Th2 chemokine expression in the post resuscitation period. Further investigation into the immunomodulatory effects of RIC in traumatic injuries and their impact on clinical outcomes is warranted.ClinicalTrials.gov number: NCT02071290.
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Affiliation(s)
- C H Leung
- The Keenan Research Centre for Biomedical Science and the Department of Surgery, St. Michael's Hospital, Unity Health Toronto, 30 Bond Street, Li Ka Shing Knowledge Institute 3-305, Toronto, ON, M5B 1W8, Canada
| | - S B Rizoli
- The Keenan Research Centre for Biomedical Science and the Department of Surgery, St. Michael's Hospital, Unity Health Toronto, 30 Bond Street, Li Ka Shing Knowledge Institute 3-305, Toronto, ON, M5B 1W8, Canada
- Department of Surgery, University of Toronto, Toronto, Canada
| | - S Trypcic
- The Keenan Research Centre for Biomedical Science and the Department of Surgery, St. Michael's Hospital, Unity Health Toronto, 30 Bond Street, Li Ka Shing Knowledge Institute 3-305, Toronto, ON, M5B 1W8, Canada
| | - S G Rhind
- The Defence Research and Development Canada, Toronto Research Centre, Toronto, Canada
| | - A P Battista
- The Defence Research and Development Canada, Toronto Research Centre, Toronto, Canada
| | - M Ailenberg
- The Keenan Research Centre for Biomedical Science and the Department of Surgery, St. Michael's Hospital, Unity Health Toronto, 30 Bond Street, Li Ka Shing Knowledge Institute 3-305, Toronto, ON, M5B 1W8, Canada.
| | - O D Rotstein
- The Keenan Research Centre for Biomedical Science and the Department of Surgery, St. Michael's Hospital, Unity Health Toronto, 30 Bond Street, Li Ka Shing Knowledge Institute 3-305, Toronto, ON, M5B 1W8, Canada.
- Department of Surgery, University of Toronto, Toronto, Canada.
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13
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Xu Y, Wang Y, Ji X. Immune and inflammatory mechanism of remote ischemic conditioning: A narrative review. Brain Circ 2023; 9:77-87. [PMID: 37576576 PMCID: PMC10419737 DOI: 10.4103/bc.bc_57_22] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 02/06/2023] [Accepted: 02/17/2023] [Indexed: 08/15/2023] Open
Abstract
The benefits of remote ischemic conditioning (RIC) on multiple organs have been extensively investigated. According to existing research, suppressing the immune inflammatory response is an essential mechanism of RIC. Based on the extensive effects of RIC on cardiovascular and cerebrovascular diseases, this article reviews the immune and inflammatory mechanisms of RIC and summarizes the effects of RIC on immunity and inflammation from three perspectives: (1) the mechanisms of the impact of RIC on inflammation and immunity; (2) evidence of the effects of RIC on immune and inflammatory processes in ischaemic stroke; and (3) possible future applications of this effect, especially in systemic infectious diseases such as sepsis and sepsis-associated encephalopathy. This review explores the possibility of using RIC as a treatment in more inflammation-related diseases, which will provide new ideas for the treatment of this kind of disease.
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Affiliation(s)
- Yi Xu
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
- China-America Institute of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Yuan Wang
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Xunming Ji
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
- China-America Institute of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
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14
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Burda R, Burda J, Morochovič R. Ischemic Tolerance—A Way to Reduce the Extent of Ischemia–Reperfusion Damage. Cells 2023; 12:cells12060884. [PMID: 36980225 PMCID: PMC10047660 DOI: 10.3390/cells12060884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/08/2023] [Accepted: 03/11/2023] [Indexed: 03/14/2023] Open
Abstract
Individual tissues have significantly different resistance to ischemia–reperfusion damage. There is still no adequate treatment for the consequences of ischemia–reperfusion damage. By utilizing ischemic tolerance, it is possible to achieve a significant reduction in the extent of the cell damage due to ischemia–reperfusion injury. Since ischemia–reperfusion damage usually occurs unexpectedly, the use of preconditioning is extremely limited. In contrast, postconditioning has wider possibilities for use in practice. In both cases, the activation of ischemic tolerance can also be achieved by the application of sublethal stress on a remote organ. Despite very encouraging and successful results in animal experiments, the clinical results have been disappointing so far. To avoid the factors that prevent the activation of ischemic tolerance, the solution has been to use blood plasma containing tolerance effectors. This plasma is taken from healthy donors in which, after exposure to two sublethal stresses within 48 h, effectors of ischemic tolerance occur in the plasma. Application of this activated plasma to recipient animals after the end of lethal ischemia prevents cell death and significantly reduces the consequences of ischemia–reperfusion damage. Until there is a clear chemical identification of the end products of ischemic tolerance, the simplest way of enhancing ischemic tolerance will be the preparation of activated plasma from young healthy donors with the possibility of its immediate use in recipients during the initial treatment.
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Affiliation(s)
- Rastislav Burda
- Department of Trauma Surgery, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Rastislavova 43, 040 01 Košice, Slovakia
- Department of Trauma Surgery, Louis Pasteur University Hospital, Rastislavova 43, 040 01 Košice, Slovakia
- Correspondence:
| | - Jozef Burda
- Institute of Neurobiology, Slovak Academy of Sciences, 040 01 Košice, Slovakia
| | - Radoslav Morochovič
- Department of Trauma Surgery, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Rastislavova 43, 040 01 Košice, Slovakia
- Department of Trauma Surgery, Louis Pasteur University Hospital, Rastislavova 43, 040 01 Košice, Slovakia
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Pathways for Cardioprotection in Perspective: Focus on Remote Conditioning and Extracellular Vesicles. BIOLOGY 2023; 12:biology12020308. [PMID: 36829584 PMCID: PMC9953525 DOI: 10.3390/biology12020308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/08/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023]
Abstract
Despite the development of cutting-edge treatments, coronary artery disease (CAD) morbidity and mortality rates remain present at high levels. Therefore, new cardioprotective approaches are crucial to improve the health of patients. To date, experimental investigations of acute ischemia-reperfusion injury (IRI) have generally demonstrated the efficacy of local ischemic preconditioning and postconditioning cardioprotection techniques as well as of remote conditioning. However, application in clinical settings is still highly controversial and debated. Currently, remote ischemic conditioning (RIC) seems to be the most promising method for heart repair. Protective factors are released into the bloodstream, and protection can be transferred within and across species. For a long time, the cross-function and cross-transmission mechanisms of cardioprotection were largely unknown. Recently, it has been shown that small, anuclear, bilayered lipid membrane particles, known as extracellular vesicles (EVs), are the drivers of signal transduction in cardiac IRI and RIC. EVs are related to the pathophysiological processes of cardiovascular diseases (CVDs), according to compelling evidence. In this review, we will first review the current state of knowledge on myocardial IRI and cardioprotective strategies explored over the past 37 years. Second, we will briefly discuss the role of EVs in CVD and the most recent improvements on EVs as prognostic biomarkers, diagnostic, and therapeutic agents. We will discuss how EVs can be used as a new drug delivery mechanism and how they can be employed in cardiac treatment, also from a perspective of overcoming the impasse that results from neglecting confounding factors.
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16
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Schacht S, O'Connor B, Kirschner A, Steelman K, Rosmarin DH, Rubinstein J. Review of the Cardiovascular Implications of the Social and Religious Practices Associated with Donning Phylacteries. JOURNAL OF RELIGION AND HEALTH 2023; 62:287-299. [PMID: 35028811 DOI: 10.1007/s10943-021-01478-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/03/2021] [Indexed: 06/14/2023]
Abstract
We previously published a manuscript suggesting that use of phylacteries, ritual straps worn during Jewish prayer services, affects cardiovascular and inflammatory function (Owens et al., Am J Physiol-Heart Circ Physiol, 315(6):H1748-H1758, 2018). Observed physiologic changes were associated with improved cardiac outcomes, though a direct link between phylactery use and improved cardiovascular outcomes is difficult to prove as there are a number of associated religious and spiritual practices that may confound the observed effects. In this review, we assess the scientific literature regarding religious and spiritual practices associated with phylactery in order to better understand the cardiovascular implications of the practice of donning phylacteries. We focus on key aspects traditionally associated with donning phylacteries including gathering in groups, meditation and prayer.
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Affiliation(s)
- Sydney Schacht
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati College of Medicine, 231 Albert Sabin Way, ML0586, Cincinnati, OH, 45267, USA
| | - Brian O'Connor
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati College of Medicine, 231 Albert Sabin Way, ML0586, Cincinnati, OH, 45267, USA
| | - Akiva Kirschner
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati College of Medicine, 231 Albert Sabin Way, ML0586, Cincinnati, OH, 45267, USA
| | - Katie Steelman
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati College of Medicine, 231 Albert Sabin Way, ML0586, Cincinnati, OH, 45267, USA
| | | | - Jack Rubinstein
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati College of Medicine, 231 Albert Sabin Way, ML0586, Cincinnati, OH, 45267, USA.
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17
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Effect of Ischemic Preconditioning on Acute Recovery in Elite Judo Athletes: A Randomized, Single-Blind, Crossover Trial. Int J Sports Physiol Perform 2023; 18:180-186. [PMID: 36638812 DOI: 10.1123/ijspp.2022-0280] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/05/2022] [Accepted: 10/17/2022] [Indexed: 01/15/2023]
Abstract
PURPOSE The ischemic preconditioning (IPC) method has been shown to aid the recovery processes; however, no studies have been done to assess its acute recovery use in judo. This study aimed to examine IPC of lower limbs effects on recovery after a judo-specific performance in highly trained male judokas and its applicability during a competition day. METHODS A single-blind, placebo-randomized crossover study was carried out on a sample of 13 elite male judo athletes. They undertook measurements of body composition, judo-specific task (Special Judo Fitness Test), jump performance, handgrip strength, lactate, blood pressure, perceived exertion, and delayed-onset muscle soreness. IPC was applied on the legs and inflated 50 mm Hg above the systolic blood pressure for 5 minutes and repeated 3 times for each leg, with 5 minutes of reperfusion. Two-way analysis of variance with repeated measurements was used to determine changes between interventions and measurement times. Paired-sample t test and 1-way repeated-measures analysis of variance was used to determine the difference among measurement times. Statistical significance was set at P < .05. RESULTS The IPC intervention resulted in (1) decreased heart rate at 30 and 60 minutes during recovery (P = .002; P = .001), (2) better countermovement jump performance at 60 minutes (P = .05), (3) lower perceived-muscle-soreness scores (P = .006), and (4) maintained handgrip strength compared with placebo. CONCLUSIONS The present study revealed that IPC applied to judo athletes following judo-specific exercise resulted in better cardiovascular and neuromuscular recovery and could be a useful tool to enhance recovery during judo competition breaks between preliminaries and final block.
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18
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Li X, Ren C, Li S, Zhao W, Wang P, Ji X. The antihypertensive effect of remote ischemic conditioning in spontaneously hypertensive rats. Front Immunol 2023; 13:1093262. [PMID: 36713422 PMCID: PMC9878686 DOI: 10.3389/fimmu.2022.1093262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 12/28/2022] [Indexed: 01/13/2023] Open
Abstract
Purpose Limb remote ischemic conditioning (LRIC) may be an effective method to control hypertension. This study investigated whether LRIC decreases blood pressure by regulating the hypertensive inflammatory response in spontaneously hypertensive rats (SHR). Method The SHR and aged-matched Wistar rats with different ages were randomly assigned to the SHR group, SHR+LRIC group, Wistar group, and Wistar + LRIC group. LRIC was conducted by tightening a tourniquet around the upper thigh and releasing it for three cycles daily (10 mins x3 cycles). Blood pressure, the percentage of monocytes and T lymphocytes, and the concentration of pro-inflammatory cytokines in the blood were analyzed. Results The blood pressure of SHR was significantly higher than that of age-matched Wistar rats. LRIC decreased blood pressure in SHR at different ages (4, 8, and 16 weeks old), but had no effect on the blood pressure in Wistar rats. Flow cytometry analysis showed that blood monocytes and CD8 T cells of SHR were higher than those of Wistar rats. LRIC significantly decreased the percentage of monocytes and CD8 T cells in SHR. Consistent with the changes of immune cells, the levels of plasma IL-6 and TNF-α in SHR were also higher. And LRIC attenuated the plasma IL-6 and TNF-α levels in SHR. Conclusion LRIC may decreased the blood pressure via modulation of the inflammatory response in SHR.
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Affiliation(s)
- Xiaohua Li
- Department of Neurology, Aerospace center Hospital, Beijing, China
- Beijing Institute of Brain Disorder, Capital Medical University, Beijing, China
| | - Changhong Ren
- Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuan Wu Hospital, Capital Medical University, Beijing, China
| | - Sijie Li
- Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuan Wu Hospital, Capital Medical University, Beijing, China
| | - Wenbo Zhao
- Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuan Wu Hospital, Capital Medical University, Beijing, China
| | - Peifu Wang
- Department of Neurology, Aerospace center Hospital, Beijing, China
| | - Xunming Ji
- Beijing Institute of Brain Disorder, Capital Medical University, Beijing, China
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19
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Bui TA, Jickling GC, Winship IR. Neutrophil dynamics and inflammaging in acute ischemic stroke: A transcriptomic review. Front Aging Neurosci 2022; 14:1041333. [PMID: 36620775 PMCID: PMC9813499 DOI: 10.3389/fnagi.2022.1041333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 11/28/2022] [Indexed: 12/24/2022] Open
Abstract
Stroke is among the leading causes of death and disability worldwide. Restoring blood flow through recanalization is currently the only acute treatment for cerebral ischemia. Unfortunately, many patients that achieve a complete recanalization fail to regain functional independence. Recent studies indicate that activation of peripheral immune cells, particularly neutrophils, may contribute to microcirculatory failure and futile recanalization. Stroke primarily affects the elderly population, and mortality after endovascular therapies is associated with advanced age. Previous analyses of differential gene expression across injury status and age identify ischemic stroke as a complex age-related disease. It also suggests robust interactions between stroke injury, aging, and inflammation on a cellular and molecular level. Understanding such interactions is crucial in developing effective protective treatments. The global stroke burden will continue to increase with a rapidly aging human population. Unfortunately, the mechanisms of age-dependent vulnerability are poorly defined. In this review, we will discuss how neutrophil-specific gene expression patterns may contribute to poor treatment responses in stroke patients. We will also discuss age-related transcriptional changes that may contribute to poor clinical outcomes and greater susceptibility to cerebrovascular diseases.
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Affiliation(s)
- Truong An Bui
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
| | - Glen C. Jickling
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada,Department of Medicine, Division of Neurology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Ian R. Winship
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada,Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada,*Correspondence: Ian R. Winship,
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20
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Li Y, Huang P, Huang J, Zhong Z, Zhou S, Dong H, Xie J, Wu Y, Li P. Remote ischemic preconditioning improves cognitive control in healthy adults: Evidence from an event-related potential study. Front Neurosci 2022; 16:936975. [PMID: 36017186 PMCID: PMC9395971 DOI: 10.3389/fnins.2022.936975] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 07/19/2022] [Indexed: 11/13/2022] Open
Abstract
It is suggested that remote ischemic preconditioning (RIPC) may be a promising treatment for improving healthy adults’ cognitive control. However, direct empirical evidence was absent. Therefore, this study aims to provide evidence for the impact of RIPC on cognitive control. Sixty healthy young male volunteers were recruited, and 30 of them received 1-week RIPC treatment (RIPC group), while the rest did not receive RIPC (control group). Their cognitive control before and after RIPC treatment was evaluated using the classic Stroop task, and the scalp electricity activity was recorded by event-related potentials (ERPs). The behavioral results showed a conventional Stroop interference effect of both reaction times (RTs) and the accuracy rate (ACC), but the Stroop interference effect of RTs significantly decreased in the posttest compared to the pretest. Furthermore, at the electrophysiological level, ERP data showed that N450 and SP for incongruent trials were larger than that for congruent trials. Importantly, the SP differential amplitude increased after RIPC treatment, whereas there was no significant change in the control group. These results implied that RIPC treatment could improve cognitive control, especially conflict resolving in the Stroop task.
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Affiliation(s)
- Yaling Li
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Army Medical University, Chongqing, China
- Key Laboratory of High Altitude Medicine, Army Medical University, Chongqing, China
| | - Pei Huang
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Army Medical University, Chongqing, China
- Key Laboratory of High Altitude Medicine, Army Medical University, Chongqing, China
| | - Jun Huang
- Chongqing Key Laboratory of Psychological Diagnosis and Education Technology for Children With Special Needs, College of Education Science, Chongqing Normal University, Chongqing, China
| | - Zhifeng Zhong
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Army Medical University, Chongqing, China
- Key Laboratory of High Altitude Medicine, Army Medical University, Chongqing, China
| | - Simin Zhou
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Army Medical University, Chongqing, China
- Key Laboratory of High Altitude Medicine, Army Medical University, Chongqing, China
| | - Huaping Dong
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Army Medical University, Chongqing, China
- Key Laboratory of High Altitude Medicine, Army Medical University, Chongqing, China
| | - Jiaxin Xie
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Army Medical University, Chongqing, China
- Key Laboratory of High Altitude Medicine, Army Medical University, Chongqing, China
| | - Yu Wu
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Army Medical University, Chongqing, China
- Key Laboratory of High Altitude Medicine, Army Medical University, Chongqing, China
- *Correspondence: Yu Wu,
| | - Peng Li
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Army Medical University, Chongqing, China
- Key Laboratory of High Altitude Medicine, Army Medical University, Chongqing, China
- Peng Li,
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Remote ischemic conditioning causes CD4 T cells shift towards reduced cell-mediated inflammation. Pediatr Surg Int 2022; 38:657-664. [PMID: 35244771 DOI: 10.1007/s00383-022-05093-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/02/2022] [Indexed: 12/20/2022]
Abstract
PURPOSE Necrotizing enterocolitis (NEC) is a gastrointestinal disease in neonates that is associated with immune-mediated intestinal inflammation. Remote ischemic conditioning (RIC) applied to a limb has been shown to be protective against experimental NEC. In this study, we explore the immune cell-mediated response involved in NEC and the immunomodulatory effects of RIC in an experimental mouse model of the disease. METHODS NEC was induced in C57BL/6 mice (ethical approval #58119) pups on postnatal day5 (p5) using gavage hyperosmolar formula, lipopolysaccharide, and hypoxia. RIC consisted of 4 cycles of 5 min ischemia followed by 5 min reperfusion of the right hindlimb during NEC induction on p6 and p8. Breastfed mice were used as control. The mice were sacrificed on p9, with ileal tissue evaluated for inflammatory cytokines and by characterization of T-cell populations. RESULTS NEC mice had increased number of CD4+ cells indicating an accumulation of T-cells in the mesenchyme of the NEC ileum. Compared to control, NEC pups had upregulated expression pro-inflammatory cytokines (GATA3, IFNγ, IL1β, IL6, IL17, IL22, and TNFα) and reduced anti-inflammatory cytokine (TGFβ). In NEC, there was also a shift in the balance of Treg/Th17 cells towards Th17. Compared to NEC alone, RIC during the course of NEC resulted in reduction of pro-inflammatory cytokines (GATA3, IFNγ, IL1β, IL6, IL17, IL22, and TNFα), increase in anti-inflammatory cytokine TGFβ and concomitant shift back of Th17 cells towards Treg cells. CONCLUSION In experimental NEC, remote ischemic conditioning reduces the production of pro-inflammatory markers and increases the production of anti-inflammatory markers. In addition, during NEC, RIC reverses the imbalance of Treg/Th17 providing support for its effect on cell-mediated inflammation. RIC is a non-invasive physical maneuver that can have a significant beneficial effect in reducing the inflammation seen in NEC.
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Wu YK, Harel NY, Wecht JM, Bloom OE. Effects of Remote Ischemic Conditioning on Hand Engagement in individuals with Spinal cord Injury (RICHES): protocol for a pilot crossover study. F1000Res 2022; 10:464. [PMID: 35342620 PMCID: PMC8924555 DOI: 10.12688/f1000research.52670.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/06/2022] [Indexed: 11/20/2022] Open
Abstract
Background: Most spinal cord injuries (SCI) are not full transections, indicating that residual nerve circuits are retained. Rehabilitation interventions have been shown to beneficially reorganize motor pathways in the brain, corticospinal tract, and at the spinal level. However, rehabilitation training require a large number of repetitions, and intervention effects may be absent or show transient retention. Therefore, the need remains for an effective approach to synergistically improve the amount and duration of neuroplasticity in combination with other interventions. Remote ischemic conditioning (RIC) demonstrates several potential advantages as a candidate for such an approach. Therefore, we propose a protocol to investigate RIC coupled with physical training to promote neuroplasticity in hand muscles. Methods: This will be a prospective randomized-order crossover trial to be performed in eight able-bodied participants and eight participants with chronic cervical SCI. Patients will participate in two experimental sessions consisting of either active or sham RIC preceding a bout of pinch movement exercise. Serial evaluations will be conducted at baseline, after RIC, immediately after pinch exercise, and follow up 15-minutes later. The primary outcome is the change in corticospinal excitability (primarily measured by the motor evoked potential of abductor pollicis brevis muscle). Secondary outcomes will include maximal volitional pinch force, and inflammatory biomarkers. To ensure safety, we will monitor tolerability and hemodynamic responses during RIC. Discussion: This protocol will be the first to test RIC in people with cervical SCI and to investigate whether RIC alters corticospinal excitability. By sharing the details of our protocol, we hope other interested researchers will seek to investigate similar approaches – depending on overlap with the current study and mutual sharing of participant-level data, this could increase the sample size, power, and generalizability of the analysis and results. Trial registration: ClinicalTrial.gov, ID: NCT03851302; Date of registration: February 22, 2019
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Affiliation(s)
- Yu-Kuang Wu
- Rehabilitation and Human Performance, Icahn School of Medicine at Mount Sinai, New York, NY, 10003, USA
- Bronx Veterans Medical Research Foundation, Bronx, NY, 10468, USA
| | - Noam Y. Harel
- Rehabilitation and Human Performance, Icahn School of Medicine at Mount Sinai, New York, NY, 10003, USA
- Bronx Veterans Medical Research Foundation, Bronx, NY, 10468, USA
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, 10003, USA
| | - Jill M. Wecht
- Rehabilitation and Human Performance, Icahn School of Medicine at Mount Sinai, New York, NY, 10003, USA
- Bronx Veterans Medical Research Foundation, Bronx, NY, 10468, USA
| | - Ona E. Bloom
- Bronx Veterans Medical Research Foundation, Bronx, NY, 10468, USA
- The Feinstein Institute for Medical Research, Manhasset, NY, 11030, USA
- The Zucker School of Medicine at Hofstra Northwell, Hempstead, NY, 11549, USA
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Mollet I, Martins C, Ângelo-Dias M, Carvalho AS, Aloria K, Matthiesen R, Baptista MV, Borrego LM, Vieira HL. Pilot study in human healthy volunteers on the mechanisms underlying remote ischemic conditioning (RIC) – Targeting circulating immune cells and immune-related proteins. J Neuroimmunol 2022; 367:577847. [DOI: 10.1016/j.jneuroim.2022.577847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 02/03/2022] [Accepted: 03/15/2022] [Indexed: 11/29/2022]
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24
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Lu Y, Tian Y, Mou T, Zhou Y, Tian J, Yun M, Kiss A, Podesser BK, Hacker M, Zhang X, Li X. Transient cardioprotective effects of remote ischemic postconditioning on non-reperfused myocardial infarction: longitudinal evaluation study in pigs. Int J Cardiol 2022; 355:37-43. [DOI: 10.1016/j.ijcard.2022.02.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 01/28/2022] [Accepted: 02/16/2022] [Indexed: 11/25/2022]
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25
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Guo W, Ren C, Zhang B, Zhao W, Gao Y, Yu W, Ji X. Chronic Limb Remote Ischemic Conditioning may have an Antihypertensive Effect in Patients with Hypertension. Aging Dis 2021; 12:2069-2079. [PMID: 34881086 PMCID: PMC8612623 DOI: 10.14336/ad.2021.0604] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 06/06/2021] [Indexed: 12/14/2022] Open
Abstract
Hypertension is the leading preventable risk factor for all-cause morbidity and mortality worldwide. Despite antihypertensive medications have been available for decades, a big challenge we are facing is to increase the blood pressure (BP) control rate among the population. Therefore, it is necessary to search for new antihypertensive means to reduce the burden of disease caused by hypertension. Limb remote ischemic conditioning (LRIC) can trigger endogenous protective effects through transient and repeated ischemia on the limb to protect specific organs and tissues including the brain, heart, and kidney. The mechanisms of LRIC involve the regulation of the autonomic nervous system, releasing humoral factors, improvement of vascular endothelial function, and modulation of immune/inflammatory responses. These underlying mechanisms of LRIC may restrain the pathogenesis of hypertension through multiple pathways theoretically, leading to a potential decline in BP. Several existing studies have explored the impact of LRIC on BP, however, controversial findings were reported. To explore the potential antihypertensive effect of LRIC and the underlying mechanisms, we systematically reviewed the relevant articles to provide an insight into the novel therapy of hypertension.
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Affiliation(s)
- Wenting Guo
- 1Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Changhong Ren
- 2Beijing Key Laboratory of Hypoxia Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical, Beijing, China.,3Beijing Municipal Geriatric Medical Research Center, Beijing, China
| | - Bowei Zhang
- 1Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Wenbo Zhao
- 1Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China.,2Beijing Key Laboratory of Hypoxia Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical, Beijing, China
| | - Yu Gao
- 5Department of Neurology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Wantong Yu
- 1Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Xunming Ji
- 1Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China.,2Beijing Key Laboratory of Hypoxia Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical, Beijing, China.,4Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
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26
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Abbasi-Habashi S, Jickling GC, Winship IR. Immune Modulation as a Key Mechanism for the Protective Effects of Remote Ischemic Conditioning After Stroke. Front Neurol 2021; 12:746486. [PMID: 34956045 PMCID: PMC8695500 DOI: 10.3389/fneur.2021.746486] [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: 07/23/2021] [Accepted: 11/09/2021] [Indexed: 12/12/2022] Open
Abstract
Remote ischemic conditioning (RIC), which involves a series of short cycles of ischemia in an organ remote to the brain (typically the limbs), has been shown to protect the ischemic penumbra after stroke and reduce ischemia/reperfusion (IR) injury. Although the exact mechanism by which this protective signal is transferred from the remote site to the brain remains unclear, preclinical studies suggest that the mechanisms of RIC involve a combination of circulating humoral factors and neuronal signals. An improved understanding of these mechanisms will facilitate translation to more effective treatment strategies in clinical settings. In this review, we will discuss potential protective mechanisms in the brain and cerebral vasculature associated with RIC. We will discuss a putative role of the immune system and circulating mediators of inflammation in these protective processes, including the expression of pro-and anti-inflammatory genes in peripheral immune cells that may influence the outcome. We will also review the potential role of extracellular vesicles (EVs), biological vectors capable of delivering cell-specific cargo such as proteins and miRNAs to cells, in modulating the protective effects of RIC in the brain and vasculature.
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Affiliation(s)
- Sima Abbasi-Habashi
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
| | - Glen C Jickling
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
- Division of Neurology, Faculty of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Ian R Winship
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
- Neurochemical Research Unit, Department of Psychiatry, University of Alberta, Edmonton, AB, Canada
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27
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Wang X, Ji X. Interactions between remote ischemic conditioning and post-stroke sleep regulation. Front Med 2021; 15:867-876. [PMID: 34811643 DOI: 10.1007/s11684-021-0887-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 07/31/2021] [Indexed: 12/31/2022]
Abstract
Sleep disturbances are common in patients with stroke, and sleep quality has a critical role in the onset and outcome of stroke. Poor sleep exacerbates neurological injury, impedes nerve regeneration, and elicits serious complications. Thus, exploring a therapy suitable for patients with stroke and sleep disturbances is imperative. As a multi-targeted nonpharmacological intervention, remote ischemic conditioning can reduce the ischemic size of the brain, improve the functional outcome of stroke, and increase sleep duration. Preclinical/clinical evidence showed that this method can inhibit the inflammatory response, mediate the signal transductions of adenosine, activate the efferents of the vagal nerve, and reset the circadian clocks, all of which are involved in sleep regulation. In particular, cytokines tumor necrosis factor α (TNFα) and adenosine are sleep factors, and electrical vagal nerve stimulation can improve insomnia. On the basis of the common mechanisms of remote ischemic conditioning and sleep regulation, a causal relationship was proposed between remote ischemic conditioning and post-stroke sleep quality.
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Affiliation(s)
- Xian Wang
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing, 100069, China
| | - Xunming Ji
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing, 100069, China. .,Beijing Key Laboratory of Hypoxia Conditioning Translational Medicine, Beijing, 100069, China.
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28
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Yu HH, Ma XT, Ma X, Chen M, Chu YH, Wu LJ, Wang W, Qin C, Tian DS. Remote Limb Ischemic Postconditioning Protects Against Ischemic Stroke by Promoting Regulatory T Cells Thriving. J Am Heart Assoc 2021; 10:e023077. [PMID: 34726065 PMCID: PMC8751947 DOI: 10.1161/jaha.121.023077] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Remote limb ischemic postconditioning (RLIPoC) has been demonstrated to protect against ischemic stroke. However, the underlying mechanisms of RLIPoC mediating cross-organ protection remain to be fully elucidated. Methods and Results Ischemic stroke was induced by middle cerebral artery occlusion for 60 minutes. RLIPoC was performed with 3 cycles of 10-minute ischemia followed by 10-minute reperfusion of the bilateral femoral arteries immediately after middle cerebral artery reperfusion. The percentage of regulatory T cells (Tregs) in the spleen, blood, and brain was detected using flow cytometry, and the number of Tregs in the ischemic hemisphere was counted using transgenic mice with an enhanced green fluorescent protein-tagged Foxp3. Furthermore, the metabolic status was monitored dynamically using a multispectral optical imaging system. The Tregs were conditionally depleted in the depletion of Treg transgenic mice after the injection of the diphtheria toxin. The inflammatory response and neuronal apoptosis were investigated using immunofluorescent staining. Infarct volume and neurological deficits were evaluated using magnetic resonance imaging and the modified neurological severity score, respectively. The results showed that RLIPoC substantially reduced infarct volume, improved neurological function, and significantly increased Tregs in the spleen, blood, and ischemic hemisphere after middle cerebral artery occlusion. RLIPoC was followed by subsequent alteration in metabolites, such as flavin adenine dinucleotide and nicotinamide adenine dinucleotide hydrate, both in RLIPoC-conducted local tissues and circulating blood. Furthermore, nicotinamide adenine dinucleotide hydrate can mimic RLIPoC in increasing Tregs. Conversely, the depletion of Tregs using depletion of Treg mice compromised the neuroprotective effects conferred by RLIPoC. Conclusions RLIPoC protects against ischemic brain injury, at least in part by activating and maintaining the Tregs through the nicotinamide adenine dinucleotide/nicotinamide adenine dinucleotide hydrate pathway.
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Affiliation(s)
- Hai-Han Yu
- Department of Neurology Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Xiao-Tong Ma
- Department of Neurology Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Department of Neurology Shandong Provincial Hospital Shandong First Medical University Jinan China
| | - Xue Ma
- Department of Neurology Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Man Chen
- Department of Neurology Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Yun-Hui Chu
- Department of Neurology Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Long-Jun Wu
- Department of Neurology Mayo Clinic Rochester MN
| | - Wei Wang
- Department of Neurology Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Chuan Qin
- Department of Neurology Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Dai-Shi Tian
- Department of Neurology Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
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29
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Mollet I, Marto JP, Mendonça M, Baptista MV, Vieira HLA. Remote but not Distant: a Review on Experimental Models and Clinical Trials in Remote Ischemic Conditioning as Potential Therapy in Ischemic Stroke. Mol Neurobiol 2021; 59:294-325. [PMID: 34686988 PMCID: PMC8533672 DOI: 10.1007/s12035-021-02585-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 09/29/2021] [Indexed: 12/19/2022]
Abstract
Stroke is one of the main causes of neurological disability worldwide and the second cause of death in people over 65 years old, resulting in great economic and social burden. Ischemic stroke accounts for 85% of total cases, and the approved therapies are based on re-establishment of blood flow, and do not directly target brain parenchyma. Thus, novel therapies are urgently needed. In this review, limb remote ischemic conditioning (RIC) is revised and discussed as a potential therapy against ischemic stroke. The review targets both (i) fundamental research based on experimental models and (ii) clinical research based on clinical trials and human interventional studies with healthy volunteers. Moreover, it also presents two approaches concerning RIC mechanisms in stroke: (i) description of the underlying cerebral cellular and molecular mechanisms triggered by limb RIC that promote neuroprotection against stroke induced damage and (ii) the identification of signaling factors involved in inter-organ communication following RIC procedure. Limb to brain remote signaling can occur via circulating biochemical factors, immune cells, and/or stimulation of autonomic nervous system. In this review, these three hypotheses are explored in both humans and experimental models. Finally, the challenges involved in translating experimentally generated scientific knowledge to a clinical setting are also discussed.
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Affiliation(s)
- Inês Mollet
- UCIBIO, Applied Molecular Biosciences Unit, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Campus de Caparica, 2829-526, Caparica, Portugal.,CEDOC, Faculdade de Ciências Médicas/NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - João Pedro Marto
- CEDOC, Faculdade de Ciências Médicas/NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal.,Department of Neurology, Hospital de Egas Moniz, Centro Hospitalar Lisboa Ocidental, Lisbon, Portugal
| | - Marcelo Mendonça
- CEDOC, Faculdade de Ciências Médicas/NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal.,Champalimaud Research, Champalimaud Center for the Unknown, Lisbon, Portugal
| | - Miguel Viana Baptista
- CEDOC, Faculdade de Ciências Médicas/NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal.,Department of Neurology, Hospital de Egas Moniz, Centro Hospitalar Lisboa Ocidental, Lisbon, Portugal
| | - Helena L A Vieira
- UCIBIO, Applied Molecular Biosciences Unit, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Campus de Caparica, 2829-526, Caparica, Portugal. .,CEDOC, Faculdade de Ciências Médicas/NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal. .,Associate Laboratory i4HB - Institute for Health and Bioeconomy, NOVA School of Science and Technology, NOVA University Lisbon, Caparica, Portugal.
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30
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Nielsen MB, Ravlo K, Eijken M, Krogstrup NV, Bue Svendsen M, Abdel-Halim C, Steen Petersen M, Birn H, Oltean M, Jespersen B, Møller BK. Dynamics of circulating dendritic cells and cytokines after kidney transplantation-No effect of remote ischaemic conditioning. Clin Exp Immunol 2021; 206:226-236. [PMID: 34473350 DOI: 10.1111/cei.13658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/11/2021] [Accepted: 08/26/2021] [Indexed: 12/18/2022] Open
Abstract
Inflammation resulting from ischaemia/reperfusion injury can cause kidney graft dysfunction, increase the risk of delayed graft function and possibly reduce long-term graft survival. Remote ischaemic conditioning may protect against ischaemia/reperfusion injury and mitigate the immunological response to the graft. We investigated the immunological effects of remote ischaemic conditioning on kidney transplantation from deceased donors in the randomized CONTEXT study. Three circulating dendritic cell (DC) subtypes identified in peripheral blood from kidney transplant recipients [myeloid DCs, plasmacytoid DCs and immunoglobulin-like transcript (ILT)3+ DCs] were measured at baseline, days 1, 3 and 5 and 1 and 3 months after transplantation. We also quantified 21 cytokines at baseline, days 1 and 5 and 3 months after transplantation. Neither DC counts nor cytokine levels differed between patients receiving remote ischaemic conditioning and controls; however, several parameters exhibited dynamic and parallel alterations in the two groups over time, reflecting the immunological response to the kidney transplantation and immunosuppression.
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Affiliation(s)
- Marie B Nielsen
- Department of Renal Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Kristian Ravlo
- Department of Renal Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Marco Eijken
- Department of Renal Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - Nicoline V Krogstrup
- Department of Renal Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Nephrology, Rigshospitalet, Copenhagen, Denmark
| | | | - Chadi Abdel-Halim
- Department of Otorhinolaryngology, Head and Neck Surgery, and Audiology, Odense University Hospital, Odense, Denmark
| | | | - Henrik Birn
- Department of Renal Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Mihai Oltean
- The Transplant Institute, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Bente Jespersen
- Department of Renal Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Bjarne K Møller
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
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31
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Myocardial remote ischemic preconditioning: from cell biology to clinical application. Mol Cell Biochem 2021; 476:3857-3867. [PMID: 34125317 DOI: 10.1007/s11010-021-04192-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 05/26/2021] [Indexed: 12/25/2022]
Abstract
Remote ischemic preconditioning (rIPC) is a cardioprotective phenomenon where brief periods of ischemia followed by reperfusion of one organ/tissue can confer subsequent protection against ischemia/reperfusion injury in other organs, such as the heart. It involves activation of humoral, neural or systemic communication pathways inducing different intracellular signals in the heart. The main purpose of this review is to summarize the possible mechanisms involved in the rIPC cardioprotection, and to describe recent clinical trials to establish the efficacy of these strategies in cardioprotection from lethal ischemia/reperfusion injury. In this sense, certain factors weaken the subcellular mechanisms of rIPC in patients, such as age, comorbidities, medication, and anesthetic protocol, which could explain the heterogeneity of results in some clinical trials. For these reasons, further studies, carefully designed, are necessary to develop a clearer understanding of the pathways and mechanism of early and late rIPC. An understanding of the pathways is important for translation to patients.
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32
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Orlandi M, Masi S, Bhowruth D, Leira Y, Georgiopoulos G, Yellon D, Hingorani A, Chiesa ST, Hausenloy DJ, Deanfield J, D'Aiuto F. Remote Ischemic Preconditioning Protects Against Endothelial Dysfunction in a Human Model of Systemic Inflammation: A Randomized Clinical Trial. Arterioscler Thromb Vasc Biol 2021; 41:e417-e426. [PMID: 34107730 DOI: 10.1161/atvbaha.121.316388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Marco Orlandi
- Periodontology Unit, UCL Eastman Dental Institute and Hospital (M.O., Y.L., F.D.), University College London, United Kingdom
| | - Stefano Masi
- National Centre for Cardiovascular Prevention and Outcomes Institute of Cardiovascular Science (S.M., D.B., S.T.C., J.D.), University College London, United Kingdom.,Internal Medicine Unit, University of Pisa, Italy (S.M.)
| | - Devina Bhowruth
- National Centre for Cardiovascular Prevention and Outcomes Institute of Cardiovascular Science (S.M., D.B., S.T.C., J.D.), University College London, United Kingdom
| | - Yago Leira
- Periodontology Unit, UCL Eastman Dental Institute and Hospital (M.O., Y.L., F.D.), University College London, United Kingdom.,Periodontology Unit, Faculty of Odontology, University of Santiago de Compostela and Medical-Surgical Dentistry Research Group (Y.L.), Health Research Institute of Santiago de Compostela, Spain.,Clinical Neurosciences Research Laboratory (Y.L.), Health Research Institute of Santiago de Compostela, Spain
| | - Georgios Georgiopoulos
- School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas Hospital, United Kingdom (G.G.)
| | - Derek Yellon
- The Hatter Cardiovascular Institute (D.Y., D.J.H.), University College London, United Kingdom
| | - Aroon Hingorani
- Institute of Cardiovascular Science (A.H.), University College London, United Kingdom
| | - Scott T Chiesa
- National Centre for Cardiovascular Prevention and Outcomes Institute of Cardiovascular Science (S.M., D.B., S.T.C., J.D.), University College London, United Kingdom
| | - Derek J Hausenloy
- The Hatter Cardiovascular Institute (D.Y., D.J.H.), University College London, United Kingdom.,Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore (D.J.H.).,National Heart Research Institute Singapore, National Heart Centre, Singapore (D.J.H.).,Yong Loo Lin School of Medicine, National University Singapore, Singapore (D.J.H.).,Cardiovascular Research Center, College of Medical and Health Sciences, Asia University, Taiwan (D.J.H.)
| | - John Deanfield
- National Centre for Cardiovascular Prevention and Outcomes Institute of Cardiovascular Science (S.M., D.B., S.T.C., J.D.), University College London, United Kingdom
| | - Francesco D'Aiuto
- Periodontology Unit, UCL Eastman Dental Institute and Hospital (M.O., Y.L., F.D.), University College London, United Kingdom
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33
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Hodoodi F, Allah-Tavakoli M, Tajik F, Fatemi I, Moghadam Ahmadi A. The effect of head cooling and remote ischemic conditioning on patients with traumatic brain injury. iScience 2021; 24:102472. [PMID: 34169235 PMCID: PMC8207229 DOI: 10.1016/j.isci.2021.102472] [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: 06/08/2020] [Revised: 09/12/2020] [Accepted: 04/22/2021] [Indexed: 11/17/2022] Open
Abstract
Cerebral impairment caused by an external force to the head is known as traumatic brain injury (TBI). The aim of this study was to determine the role of local hypothermia and remote ischemic conditioning (RIC) on oxidative stress, inflammatory response after TBI, and other involved variables. The present study is a clinical trial on 84 patients with TBI who were divided into 4 groups. The head cooling for 1.5 to 6 hr was performed in the first three days after TBI. RIC intervention was performed within the golden time after TBI in the form of four 5-min cycles with full cuff and 5 min of emptying of cuff. The group receiving the head cooling technique recovered better than the group receiving the RIC technique. Generally, combination of the two interventions of head cooling and RIC techniques is more effective on the improvement of clinical status of patients than each separate technique. The effect of the head cooling method in controlling secondary injury in patients with TBI. The effect of the RIC method in controlling secondary injury in patients with TBI. Comparison of two interventions of head cooling and RIC. Evaluation of clinical and paraclinical parameters.
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Affiliation(s)
- Fardin Hodoodi
- Department of Physiology and Pharmacology, Schoole of Medicine, Rafsanjan University of Medical Science, Rafsanjan, Iran
| | - Mohammad Allah-Tavakoli
- Department of Physiology and Pharmacology, Schoole of Medicine, Rafsanjan University of Medical Science, Rafsanjan, Iran
- Physiology-pharmacology Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Farzad Tajik
- Department of Clinical Research Sciences, Department of Medicine, Rafsanjan University of Medical Science, Rafsanjan, Iran
- Department of Neurology, Department of Medicine, Rafsanjan University of Medical Science, Rafsanjan, Iran
| | - Iman Fatemi
- Research Center of Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran
| | - Amir Moghadam Ahmadi
- Department of Neurology, Department of Medicine, Rafsanjan University of Medical Science, Rafsanjan, Iran
- Non-Communicable Diseases Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
- Corresponding author
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34
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Lassen TR, Hjortbak MV, Hauerslev M, Tonnesen PT, Kristiansen SB, Jensen RV, Bøtker HE. Influence of strain, age, origin, and anesthesia on the cardioprotective efficacy by local and remote ischemic conditioning in an ex vivo rat model. Physiol Rep 2021; 9:e14810. [PMID: 33818005 PMCID: PMC8020046 DOI: 10.14814/phy2.14810] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 03/01/2021] [Accepted: 03/03/2021] [Indexed: 02/07/2023] Open
Abstract
Background Local ischemic preconditioning (IPC) and remote ischemic conditioning (RIC) induced by brief periods of ischemia and reperfusion protect against ischemia‐reperfusion injury. Methods We studied the sensitivity to IR‐injury and the influence of strain, age, supplier, and anesthesia upon the efficacy of IPC and RIC in 7‐ and 16‐weeks‐old Sprague‐Dawley and Wistar rats from three different suppliers. The influence of sedation with a hypnorm and midazolam mixture (rodent mixture) and pentobarbiturate was compared. Results IPC attenuated infarct size in both 7‐weeks‐old Sprague–Dawley (48.4 ± 17.7% vs. 20.3 ± 6.9, p < 0.001) and 7‐weeks‐old Wistar (55.6 ± 10.9% vs. 26.8 ± 5.0%, p < 0.001) rats. Infarct size was larger in 16‐weeks‐old Sprague–Dawley rats, however, IPC still lowered infarct size (78.8 ± 9.2% vs. 58.3 ± 12.3%, p < 0.01). RIC reduced infarct sizes in 7‐weeks‐old Sprague–Dawley (75.3 ± 11.8% vs. 58.6 ± 8.9%, p < 0.05), but not in 7‐weeks‐old Wistar rats (31.7 ± 17.6% and 24.0 ± 12.6%, p = 0.2). In 16‐weeks‐old Sprague–Dawley rats, RIC did not induce protection (76.4 ± 5.5% and 73.2 ± 14.7%, p = 0.6). However, RIC induced protection in 16‐weeks‐old Wistar rats (45.2 ± 8.5% vs. 14.7 ± 10.8%, p < 0.001). RIC did not reduce infarct size in 7‐weeks‐old Sprague–Dawley rats from Charles River (62.0 ± 13.5% and 69.4 ± 10.4% p = 0.3) or 16‐weeks‐old Wistar rats from Janvier (50.7 ± 11.3 and 49.2 ± 16.2, p = 0.8). There was no difference between sedation with rodent mixture or pentobarbiturate. Conclusion The cardioprotective effect of IPC is consistent across rat strains independent of age, strain, and supplier. RIC seems to be less reproducible, but still yields protection across different rat strains. However, age, animal supplier, and anesthetics may modulate the sensitivity of IR‐injury and the response to RIC.
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Affiliation(s)
- Thomas Ravn Lassen
- Department of Cardiology, Aarhus University Hospital, Aarhus N, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark
| | - Marie Vognstoft Hjortbak
- Department of Cardiology, Aarhus University Hospital, Aarhus N, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark
| | - Marie Hauerslev
- Department of Cardiology, Aarhus University Hospital, Aarhus N, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark
| | - Pernille Tilma Tonnesen
- Department of Cardiology, Aarhus University Hospital, Aarhus N, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark
| | | | | | - Hans Erik Bøtker
- Department of Cardiology, Aarhus University Hospital, Aarhus N, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark
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35
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Wahlstrøm KL, Bjerrum E, Gögenur I, Burcharth J, Ekeloef S. Effect of remote ischaemic preconditioning on mortality and morbidity after non-cardiac surgery: meta-analysis. BJS Open 2021; 5:6176672. [PMID: 33733660 PMCID: PMC7970092 DOI: 10.1093/bjsopen/zraa026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 09/16/2020] [Indexed: 01/22/2023] Open
Abstract
Background Remote ischaemic preconditioning (RIPC) has been shown to have a protective role on vital organs exposed to reperfusion injury. The aim of this systematic review was to evaluate the effects of non-invasive RIPC on clinical and biochemical outcomes in patients undergoing non-cardiac surgery Methods A systematic literature search of PubMed, EMBASE, Scopus, and Cochrane databases was carried out in February 2020. RCTs investigating the effect of non-invasive RIPC in adults undergoing non-cardiac surgery were included. Meta-analyses and trial sequential analyses (TSAs) were performed on cardiovascular events, acute kidney injury, and short- and long-term mortality. Results Some 43 RCTs including 3660 patients were included. The surgical areas comprised orthopaedic, vascular, abdominal, pulmonary, neurological, and urological surgery. Meta-analysis showed RIPC to be associated with fewer cardiovascular events in non-cardiac surgery (13 trials, 1968 patients, 421 events; odds ratio (OR) 0.68, 95 per cent c.i. 0.47 to 0.96; P = 0.03). Meta-analyses of the effect of RIPC on acute kidney injury (12 trials, 1208 patients, 211 events; OR 1.14, 0.78 to 1.69; P = 0.50; I2 = 9 per cent), short-term mortality (7 trials, 1239 patients, 65 events; OR 0.65, 0.37 to 1.12; P = 0.12; I2 = 0 per cent), and long-term mortality (4 trials, 1167 patients, 9 events; OR 0.67, 0.18 to 2.55; P = 0.56; I2 = 0 per cent) showed no significant differences for RIPC compared with standard perioperative care in non-cardiac surgery. However, TSAs showed that the required information sizes have not yet been reached. Conclusion Application of RIPC to non-cardiac surgery might reduce cardiovascular events, but not acute kidney injury or all-cause mortality, but currently available data are inadequate to confirm or reject an assumed intervention effect.
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Affiliation(s)
- K L Wahlstrøm
- Department of Surgery, Centre for Surgical Science, Zealand University Hospital, Koege, Denmark
| | - E Bjerrum
- Department of Surgery, Centre for Surgical Science, Zealand University Hospital, Koege, Denmark
| | - I Gögenur
- Department of Surgery, Centre for Surgical Science, Zealand University Hospital, Koege, Denmark
| | - J Burcharth
- Department of Surgery, Centre for Surgical Science, Zealand University Hospital, Koege, Denmark
| | - S Ekeloef
- Department of Surgery, Centre for Surgical Science, Zealand University Hospital, Koege, Denmark
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36
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Patterson SD, Swan R, Page W, Marocolo M, Jeffries O, Waldron M. The effect of acute and repeated ischemic preconditioning on recovery following exercise-induced muscle damage. J Sci Med Sport 2021; 24:709-714. [PMID: 33648866 DOI: 10.1016/j.jsams.2021.02.012] [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: 11/06/2020] [Revised: 02/11/2021] [Accepted: 02/15/2021] [Indexed: 11/25/2022]
Abstract
OBJECTIVES The aim of this investigation was to determine if acute or repeated applications of ischemic preconditioning (IPC) could enhance the recovery process, following exercise induced muscle damage (EIMD). DESIGN Randomized control trial. METHODS Twenty-three healthy males were familiarised with the muscle damaging protocol (five sets of 20 drop jumps from a 0.6 m box) and randomly allocated to one of three groups: SHAM (3 × 5 min at 20 mmHg), Acute IPC (3 × 5 min at 220 mmHg) and Repeated IPC (3 days x 3 × 5 min at 220 mmHg). The indices of muscle damage measured included creatine kinase concentration ([CK]), thigh swelling, delayed onset muscle soreness, counter movement jumps (CMJ) and maximal voluntary isometric contraction (MVIC). RESULTS Both acute and repeated IPC improved recovery in MVIC versus SHAM. Repeated IPC led to a faster MVIC recovery at 48 h (101.5%) relative to acute IPC (92.6%) and SHAM (84.4%) (P < 0.05). Less swelling was found for both acute and repeated IPC vs. SHAM (P < 0.05) but no group effects were found for CMJ, soreness or [CK] responses (P > 0.05). CONCLUSION Taken together, repeated IPC can enhance recovery time of MVIC more than an acute application, and both reduce swelling following EIMD, relative to a SHAM condition.
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Affiliation(s)
- Stephen D Patterson
- Faculty of Sport, Allied Health & Performance Sciences, St Marys University, UK.
| | - Rachael Swan
- Faculty of Sport, Allied Health & Performance Sciences, St Marys University, UK
| | - William Page
- Faculty of Sport, Allied Health & Performance Sciences, St Marys University, UK
| | - Moacir Marocolo
- Department of Physiology, Federal University of Juiz de Fora, Brazil
| | - Owen Jeffries
- School of Biomedical, Nutritional and Sport Sciences, Newcastle University, UK
| | - Mark Waldron
- College of Engineering, Swansea University, UK; School of Science and Technology, University of New England, Australia
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Halapas A, Kapelouzou A, Chrissoheris M, Pattakos G, Cokkinos DV, Spargias K. The effect of Remote Ischemic Preconditioning (RIPC) on myocardial injury and inflammation in patients with severe aortic valve stenosis undergoing Transcatheter Aortic Valve Replacement (TAVΙ). Hellenic J Cardiol 2021; 62:423-428. [PMID: 33617961 DOI: 10.1016/j.hjc.2021.02.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 01/01/2021] [Accepted: 02/12/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Remote ischemic preconditioning (RIPC) is being evaluated as a strategy to reduce cardiac injury and inflammation in patients undergoing diverse cardiac invasive and surgical procedures. However, it is unclear whether RIPC has protective effects in patients undergoing the transfemoral- transcatheter aortic valve implantation (TF-TAVΙ) procedure. METHODS Between September 2013 and September 2015, 55 random consecutive patients were prospectively assigned to receive SHAM preconditioning (SHAM, 22 patients) or Remote Ischemic Preconditioning (RIPC) (4 cycles of 5 min intermittent leg ischemia and 5 min reperfusion, 33 patients) prior to TF-TAVI. The primary endpoint was to determine the serum levels of: hs-cTn-I (necrosis), CK-18 (apoptosis), and IL-1b (inflammation). Quantification was performed using commercially available ELISA kits. Patients were sampled 1-day pre TF-TAVΙ and 24-hours post TF-TAVΙ. Secondary endpoints included: total mortality, incidence of periprocedural clinical acute myocardial infarction (AMI), acute kidney injury (AKI), and stroke. RESULTS 22 SHAM patients and 33 RIPC patients were finally analyzed. Our data revealed no significant difference in serum levels of hs-cTn-I and CK-18 among various groups. However, in the RIPC group, the increase in IL1b level was significantly lower for 24-h post TF-TAVΙ, (p < 0.01). There were no significant differences between groups in the secondary endpoints at the follow-up interval of one month. RIPC-related adverse events were not observed. CONCLUSIONS Our data suggest that RIPC did not exhibit significant cardiac or kidney protective effects regarding necrosis and apoptosis in patients undergoing TF-TAVΙ. However, an important anti-inflammatory effect was detected in the RIPC group.
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Affiliation(s)
- Antonios Halapas
- THV Department, Heart Team Hygeia Hospital Athens Greece, Er. Stavrou 9, Marousi, Athens, Greece.
| | - Alkistis Kapelouzou
- Center of Clinical, Experimental Surgery, & Translation Research, Biomedical Research Foundation Academy of Athens (BRFAA), Soranou Efesiou 4, 11527, Athens, Greece
| | - Michael Chrissoheris
- THV Department, Heart Team Hygeia Hospital Athens Greece, Er. Stavrou 9, Marousi, Athens, Greece
| | - Gregory Pattakos
- THV Department, Heart Team Hygeia Hospital Athens Greece, Er. Stavrou 9, Marousi, Athens, Greece
| | - Dennis V Cokkinos
- Center of Clinical, Experimental Surgery, & Translation Research, Biomedical Research Foundation Academy of Athens (BRFAA), Soranou Efesiou 4, 11527, Athens, Greece
| | - Konstantinos Spargias
- THV Department, Heart Team Hygeia Hospital Athens Greece, Er. Stavrou 9, Marousi, Athens, Greece
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Kim E, Cho S. CNS and peripheral immunity in cerebral ischemia: partition and interaction. Exp Neurol 2021; 335:113508. [PMID: 33065078 PMCID: PMC7750306 DOI: 10.1016/j.expneurol.2020.113508] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/28/2020] [Accepted: 10/08/2020] [Indexed: 02/07/2023]
Abstract
Stroke elicits excessive immune activation in the injured brain tissue. This well-recognized neural inflammation in the brain is not just an intrinsic organ response but also a result of additional intricate interactions between infiltrating peripheral immune cells and the resident immune cells in the affected areas. Given that there is a finite number of immune cells in the organism at the time of stroke, the partitioned immune systems of the central nervous system (CNS) and periphery must appropriately distribute the limited pool of immune cells between the two domains, mounting a necessary post-stroke inflammatory response by supplying a sufficient number of immune cells into the brain while maintaining peripheral immunity. Stroke pathophysiology has mainly been neurocentric in focus, but understanding the distinct roles of the CNS and peripheral immunity in their concerted action against ischemic insults is crucial. This review will discuss stroke-induced influences of the peripheral immune system on CNS injury/repair and of neural inflammation on peripheral immunity, and how comorbidity influences each.
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Affiliation(s)
- Eunhee Kim
- Vivian L. Smith Department of Neurosurgery at University of Texas Health Science Center at Houston, Houston, TX, United States of America
| | - Sunghee Cho
- Burke Neurological Institute, White Plains, NY, United States of America; Feil Brain Mind Research Institute, Weill Cornell Medicine, New York, NY, United States of America.
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Liu J, Sun X, Jin H, Yan XL, Huang S, Guo ZN, Yang Y. Remote ischemic conditioning: A potential therapeutic strategy of type 2 diabetes. Med Hypotheses 2020; 146:110409. [PMID: 33277103 DOI: 10.1016/j.mehy.2020.110409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 10/12/2020] [Accepted: 11/17/2020] [Indexed: 02/06/2023]
Abstract
Type 2 diabetes (T2D) is one of the major public diseases which is characterized by peripheral insulin resistance (IR) and progressive pancreatic β-cell failure. While in the past few years, some new factors, such as inflammation, oxidative stress, immune responses and other potential pathways, have been identified to play critical roles in T2D, and thereby provide novel promising targets for the treatment of T2D. Remote ischemic conditioning (RIC) is a non-invasive and convenient operation performed by transient, repeated ischemia in distant place. Nowadays, RIC has been established as a potentially powerful therapeutic tool for many diseases, especially in I/R injuries. Through activating a series of neural, humoral and immune pathways, it can release multiple protective signals, which then regulating inflammation, oxidative stress, immune response and so on. Interestingly, several recent studies have discovered that the beneficial effects of RIC on I/R injuries might be abolished by T2D, wherein the higher basal levels of inflammation and oxidative stress, dysregulation of immune system and some potential pathways secondary to hyperglycemia may play critical roles. In contrast, a higher intensity of conditioning could restore the protective effects. Based on the overlapped mechanisms RIC and T2D performs, we provide a hypothesis that RIC may also play a protective role in T2D via targeting these signaling pathways.
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Affiliation(s)
- Jie Liu
- Stroke Center & Clinical Trial and Research Center for Stroke, Department of Neurology, the First Hospital of Jilin University, No. 1 Xinmin Street, Changchun 130021, China; China National Comprehensive Stroke Center, No. 1 Xinmin Street, Changchun 130021, China; Jilin Provincial Key Laboratory of Cerebrovascular Disease, No. 1 Xinmin Street, Changchun 130021, China
| | - Xin Sun
- Stroke Center & Clinical Trial and Research Center for Stroke, Department of Neurology, the First Hospital of Jilin University, No. 1 Xinmin Street, Changchun 130021, China; China National Comprehensive Stroke Center, No. 1 Xinmin Street, Changchun 130021, China
| | - Hang Jin
- Stroke Center & Clinical Trial and Research Center for Stroke, Department of Neurology, the First Hospital of Jilin University, No. 1 Xinmin Street, Changchun 130021, China; China National Comprehensive Stroke Center, No. 1 Xinmin Street, Changchun 130021, China
| | - Xiu-Li Yan
- Stroke Center & Clinical Trial and Research Center for Stroke, Department of Neurology, the First Hospital of Jilin University, No. 1 Xinmin Street, Changchun 130021, China
| | - Shuo Huang
- Stroke Center & Clinical Trial and Research Center for Stroke, Department of Neurology, the First Hospital of Jilin University, No. 1 Xinmin Street, Changchun 130021, China; China National Comprehensive Stroke Center, No. 1 Xinmin Street, Changchun 130021, China; Jilin Provincial Key Laboratory of Cerebrovascular Disease, No. 1 Xinmin Street, Changchun 130021, China
| | - Zhen-Ni Guo
- Stroke Center & Clinical Trial and Research Center for Stroke, Department of Neurology, the First Hospital of Jilin University, No. 1 Xinmin Street, Changchun 130021, China; China National Comprehensive Stroke Center, No. 1 Xinmin Street, Changchun 130021, China; Jilin Provincial Key Laboratory of Cerebrovascular Disease, No. 1 Xinmin Street, Changchun 130021, China.
| | - Yi Yang
- Stroke Center & Clinical Trial and Research Center for Stroke, Department of Neurology, the First Hospital of Jilin University, No. 1 Xinmin Street, Changchun 130021, China; China National Comprehensive Stroke Center, No. 1 Xinmin Street, Changchun 130021, China; Jilin Provincial Key Laboratory of Cerebrovascular Disease, No. 1 Xinmin Street, Changchun 130021, China.
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Sogorski A, Spindler S, Wallner C, Dadras M, Wagner JM, Behr B, Lehnhardt M, Kolbenschlag J. Optimizing remote ischemic conditioning (RIC) of cutaneous microcirculation in humans: Number of cycles and duration of acute effects. J Plast Reconstr Aesthet Surg 2020; 74:819-827. [PMID: 33172821 DOI: 10.1016/j.bjps.2020.10.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/12/2020] [Accepted: 10/11/2020] [Indexed: 02/08/2023]
Abstract
OBJECTIVE Non-invasive Remote Ischemic Conditioning (RIC) offers an approach to reduce tissue damage in various organs/tissues. Besides attenuation of Ischemia-Reperfusion injury (I/R), beneficial effects on cutaneous microcirculation of free microsurgical flaps have been reported. Given the recency of this technique, there are considerable gaps in the current understanding of its mechanism of action. As a result, clinical transfer of RIC is prolongated in several fields. We aimed to optimize the RIC protocol by examination of different RIC-cycle numbers and its effect on changes of cutaneous microcirculation and duration. METHODS 80 subjects were divided into groups (1, 3, 5, 7 RIC cycles). RIC was applied via an inflatable tourniquet. Cutaneous microcirculation was continuously assessed at the contralateral anterior lateral thigh utilizing a ©O2C-device continuously. RESULTS RIC caused significant and sustained changes in microcirculation. Four hours after completion of RIC, a maximum increase of +80.8% (CI 1.395-2.221) in blood flow and +23.5% (CI 1.098-1.372) in tissue oxygen saturation was measured (three-cycle group). A higher number of applied cycles was accompanied with significant higher mean pain. CONCLUSION Acute improvement of cutaneous microcirculation due to RIC lasted for at least 4 h after completion of the RIC-protocol. Dose-dependent effects of RIC are likely. With regard to the increase in pain, we recommend a RIC protocol of 3 cycles for future clinical application.
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Affiliation(s)
- A Sogorski
- Department of Plastic Surgery and Hand Surgery, Burn Center, BG University Hospital Bergmannsheil Bochum, Ruhr-University Bochum, Buerkle-de-la-Camp-Platz 1, 44789 Bochum, Germany.
| | - S Spindler
- Department of Plastic Surgery and Hand Surgery, Burn Center, BG University Hospital Bergmannsheil Bochum, Ruhr-University Bochum, Buerkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - C Wallner
- Department of Plastic Surgery and Hand Surgery, Burn Center, BG University Hospital Bergmannsheil Bochum, Ruhr-University Bochum, Buerkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - M Dadras
- Department of Plastic Surgery and Hand Surgery, Burn Center, BG University Hospital Bergmannsheil Bochum, Ruhr-University Bochum, Buerkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - J M Wagner
- Department of Plastic Surgery and Hand Surgery, Burn Center, BG University Hospital Bergmannsheil Bochum, Ruhr-University Bochum, Buerkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - B Behr
- Department of Plastic Surgery and Hand Surgery, Burn Center, BG University Hospital Bergmannsheil Bochum, Ruhr-University Bochum, Buerkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - M Lehnhardt
- Department of Plastic Surgery and Hand Surgery, Burn Center, BG University Hospital Bergmannsheil Bochum, Ruhr-University Bochum, Buerkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - J Kolbenschlag
- Department of Hand, Plastic and Reconstructive Surgery, BG Unfallklinik Tuebingen, Eberhard Karls University Tuebingen, Schnarrenbergstraße 95, 72076 Tuebingen, Germany
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Bashir SO, Morsy MD, El Agamy DF. Two episodes of remote ischemia preconditioning improve motor and sensory function of hind limbs after spinal cord ischemic injury. J Spinal Cord Med 2020; 43:878-887. [PMID: 30985269 PMCID: PMC7801032 DOI: 10.1080/10790268.2019.1600829] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
Objectives: To investigate the effect of one and two remote ischemia preconditioning episodes (1-RIPC or 2-RIPC, respectively) on neuro-protection after spinal cord ischemic injury (SCI) in rats. Design: Experimental animal study. Setting: College of Medicine, King Khalid University, Abha, KSA. Interventions: Male rats (n = 10/group) were divided into control, sham, SCIRI, 1-RIPC + SCIRI, and 2-RIPC + SCIRI. SCI was induced by aortic ligation for 45 min and each RIPC episode was induced by 3 cycles of 10 min ischemia/10 min perfusion. The two preconditioning procedures were separated by 24 h. Outcome measures: after 48 h of RIPC procedure, Tarlov's test, withdrawal from the painful stimulus and placing/stepping reflex (SPR) were used to evaluate the hind limbs neurological function. SC homogenates were used to measure various biochemical parameters. Results: Motor and sensory function of hind limbs were significantly improved and levels of MDA, AOPPs, PGE2, TNF-α, and IL-6, as well as the activity of SOD, was significantly decreased in SC tissue in either 1 or 2 episodes of RIPC intervention. Concomitantly, levels of total nitrate/nitrite and eNOS activity were significantly increased in both groups. Interestingly, except for activity of SOD, eNOS and levels of nitrate/nitrite, the improvements in all neurological biochemical endpoint were more profound in 2-RIPC + SCIRI compared with 1-RIPC + SCIRI. Conclusion: applying two preconditioning episodes of 3 cycles of 10 min ischemia/10 min perfusion, separated by 24 h, boost the neuro-protection effect of RIPC maneuver in rats after ischemic induced SCI in rats.
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Affiliation(s)
- Salah Omar Bashir
- Department of Physiology, College of Medicine, King Khalid University, Abha, Saudi Arabia
| | - Mohamed Darwesh Morsy
- Department of Physiology, College of Medicine, King Khalid University, Abha, Saudi Arabia,Department of Physiology, College of Medicine, Menoufia University, Shebeen Alkoom, Egypt,Correspondence to: Mohamed Darwesh Morsy, Department of Physiology, College of Medicine, King Khalid University, Abha61421, Saudi Arabia; Mobile Number: +966544495223; Fax: +966+966172251690; E-mail:
| | - Dalia Fathy El Agamy
- Department of Physiology, College of Medicine, Menoufia University, Shebeen Alkoom, Egypt
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Mieszkowski J, Stankiewicz B, Kochanowicz A, Niespodziński B, Borkowska A, Antosiewicz J. Effect of Ischemic Preconditioning on Marathon-Induced Changes in Serum Exerkine Levels and Inflammation. Front Physiol 2020; 11:571220. [PMID: 33192567 PMCID: PMC7609818 DOI: 10.3389/fphys.2020.571220] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 09/28/2020] [Indexed: 11/20/2022] Open
Abstract
Participation in a long-distance run, e.g., marathon or ultramarathon, continues to increase. One side effect of long-distance running is excessive inflammation manifested by the rise in inflammatory cytokine levels. We here aimed to elucidate the effects of 10-day ischemic preconditioning (IPC) training on marathon-induced inflammation and to evaluate the role of serum-stored iron in this process. The study involved 19 recreational runners taking part in a marathon. IPC training was performed in the course of four cycles, by inflating and deflating a blood pressure cuff at 5-min intervals (IPC group, n = 10); the control group underwent sham training (n = 9). The levels of inflammatory and others markers (FSTL-1, IL-6, IL-15, leptin, resistin, TIMP-1, OSM, and LIF) were measured before and 24 h after training; and before, immediately after, and 24 h and 7 day after the marathon. The 10-day IPC training increased serum leptin levels. IL-6, IL-10, FLST-1, and resistin levels were increased, while TIMP-1 levels were decreased in all runners after the marathon. The changes were significantly blunted in runners from the IPC group compared with the control group. Baseline serum iron levels correlated with IL-6 and FSTL-1 levels; serum ferritin correlated with IL-6, FSTL-1, and resistin levels after the marathon. Conversely, serum TIMP-1 levels inversely correlated with serum iron levels. Although not evident at baseline, IPC training significantly reduced marathon-induced inflammation. In addition, the reduced responsiveness and attenuation of running-induced inflammation were inversely related to baseline serum iron and ferritin levels.
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Affiliation(s)
- Jan Mieszkowski
- Department of Gymnastics and Dance, Gdańsk, University of Physical Education and Sport, Gdańsk, Poland
| | - Błażej Stankiewicz
- Department of Biomedical Basis of Physical Culture, Institute of Physical Education, Kazimierz Wielki University, Bydgoszcz, Poland
| | - Andrzej Kochanowicz
- Department of Gymnastics and Dance, Gdańsk, University of Physical Education and Sport, Gdańsk, Poland
| | - Bartłomiej Niespodziński
- Department of Anatomy and Biomechanics, Institute of Physical Education, Kazimierz Wielki University, Bydgoszcz, Poland
| | - Andżelika Borkowska
- Department of Bioenergetics and Physiology of Exercise, Medical University of Gdańsk, Gdańsk, Poland
| | - Jędrzej Antosiewicz
- Department of Bioenergetics and Physiology of Exercise, Medical University of Gdańsk, Gdańsk, Poland
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Hao Y, Xin M, Feng L, Wang X, Wang X, Ma D, Feng J. Review Cerebral Ischemic Tolerance and Preconditioning: Methods, Mechanisms, Clinical Applications, and Challenges. Front Neurol 2020; 11:812. [PMID: 33071923 PMCID: PMC7530891 DOI: 10.3389/fneur.2020.00812] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 06/29/2020] [Indexed: 12/13/2022] Open
Abstract
Stroke is one of the leading causes of morbidity and mortality worldwide, and it is increasing in prevalence. The limited therapeutic window and potential severe side effects prevent the widespread clinical application of the venous injection of thrombolytic tissue plasminogen activator and thrombectomy, which are regarded as the only approved treatments for acute ischemic stroke. Triggered by various types of mild stressors or stimuli, ischemic preconditioning (IPreC) induces adaptive endogenous tolerance to ischemia/reperfusion (I/R) injury by activating a multitude cascade of biomolecules, for example, proteins, enzymes, receptors, transcription factors, and others, which eventually lead to transcriptional regulation and epigenetic and genomic reprogramming. During the past 30 years, IPreC has been widely studied to confirm its neuroprotection against subsequent I/R injury, mainly including local ischemic preconditioning (LIPreC), remote ischemic preconditioning (RIPreC), and cross preconditioning. Although LIPreC has a strong neuroprotective effect, the clinical application of IPreC for subsequent cerebral ischemia is difficult. There are two main reasons for the above result: Cerebral ischemia is unpredictable, and LIPreC is also capable of inducing unexpected injury with only minor differences to durations or intensity. RIPreC and pharmacological preconditioning, an easy-to-use and non-invasive therapy, can be performed in a variety of clinical settings and appear to be more suitable for the clinical management of ischemic stroke. Hoping to advance our understanding of IPreC, this review mainly focuses on recent advances in IPreC in stroke management, its challenges, and the potential study directions.
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Affiliation(s)
| | | | | | | | | | - Di Ma
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Changchun, China
| | - Jiachun Feng
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Changchun, China
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Abstract
Preconditioning, a milestone concept in the cardiovascular sciences introduced 32 years back by Murry. This concept opened a new era in the field of organ protection. To start with extensive studies done on ischemic preconditioning for myocardial protection, ischemic preconditioning is an endogenous science of cellular kinetics. Several components in signal transduction cascade have been identified but still some mechanisms not yet revealed. Anesthetic preconditioning also contributed a lot for myocardial protection and concreted the concept of preconditioning. We, with an inquisitive brain meticulously persuing newer methods of cardioprotection. Remote ischemic preconditioning (RIPC) is a brilliant example of it. RIPC can be future of cardioprotection, clinical trials and studies proved the benefits but yet to conclude the superiority of RIPC over myocardial ischemic cardioprotection. This review is an attempt to reveal this extraordinary concept with its basic cellular kinetics, methods, and recent trends.
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Affiliation(s)
| | - Suhrid R Annachhatre
- Department of CVTS, MCRI MGM Medical College and Hospital, Aurangabad, Maharashtra, India
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Effects of remote ischemic preconditioning on prognosis in patients with lung injury: A meta-analysis. J Clin Anesth 2020; 63:109795. [DOI: 10.1016/j.jclinane.2020.109795] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 02/09/2020] [Accepted: 03/14/2020] [Indexed: 01/29/2023]
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Remote ischemic conditioning in active ulcerative colitis: An explorative randomized clinical trial. Sci Rep 2020; 10:9537. [PMID: 32533085 PMCID: PMC7293253 DOI: 10.1038/s41598-020-65692-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 05/06/2020] [Indexed: 02/08/2023] Open
Abstract
Remote ischemic conditioning (RIC) by repetitive brief periods of limb ischemia and reperfusion renders organs more resistant to ischemic injury. The protection is partly through down-regulation of the inflammatory response. Our aim was to investigate the clinical and anti-inflammatory effects of RIC in patients with active ulcerative colitis (UC). We included 22 patients with active UC in this explorative, randomized, sham-controlled clinical trial. The patients were randomly assigned 1:1 to RIC (induced in the arm through four cycles of 5-min inflation and 5-min deflation of a blood-pressure cuff) or sham (incomplete inflation of the blood-pressure cuff) once daily for 10 days. Outcome variables were measured at baseline and on day 11. When compared with sham, RIC did not affect inflammation in the UC patients measured by fecal calprotectin, plasma C-reactive protein, Mayo Score, Mayo Endoscopic Subscore, Nancy Histological Index or inflammatory cytokines involved in UC and RIC. The mRNA and miRNA expression profiles in the UC patients were measured by RNA sequencing and multiplexed hybridization, respectively, but were not significantly affected by RIC. We used the Langendorff heart model to assess activation of the organ protective mechanism induced by RIC, but could not confirm activation of the organ protective mechanism in the UC patients.
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Paradis-Deschênes P, Joanisse DR, Mauriège P, Billaut F. Ischemic Preconditioning Enhances Aerobic Adaptations to Sprint-Interval Training in Athletes Without Altering Systemic Hypoxic Signaling and Immune Function. Front Sports Act Living 2020; 2:41. [PMID: 33345033 PMCID: PMC7739728 DOI: 10.3389/fspor.2020.00041] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 03/25/2020] [Indexed: 01/29/2023] Open
Abstract
Optimizing traditional training methods to elicit greater adaptations is paramount for athletes. Ischemic preconditioning (IPC) can improve maximal exercise capacity and up-regulate signaling pathways involved in physiological training adaptations. However, data on the chronic use of IPC are scarce and its impact on high-intensity training is still unknown. We investigated the benefits of adding IPC to sprint-interval training (SIT) on performance and physiological adaptations of endurance athletes. In a randomized controlled trial, athletes included eight SIT sessions in their training routine for 4 weeks, preceded by IPC (3 × 5 min ischemia/5 min reperfusion cycles at 220 mmHg, n = 11) or a placebo (20 mmHg, n = 9). Athletes were tested pre-, mid-, and post-training on a 30 s Wingate test, 5-km time trial (TT), and maximal incremental step test. Arterial O2 saturation, heart rate, rate of perceived exertion, and quadriceps muscle oxygenation changes in total hemoglobin (Δ[THb]), deoxyhemoglobin (Δ[HHb]), and tissue saturation index (ΔTSI) were measured during exercise. Blood samples were taken pre- and post-training to determine blood markers of hypoxic response, lipid-lipoprotein profile, and immune function. Differences within and between groups were analyzed using Cohen's effect size (ES). Compared to PLA, IPC improved time to complete the TT (Mid vs. Post: -1.6%, Cohen's ES ± 90% confidence limits -0.24, -0.40;-0.07) and increased power output (Mid vs. Post: 4.0%, ES 0.20, 0.06;0.35), Δ[THb] (Mid vs. Post: 73.6%, ES 0.70, -0.15;1.54, Pre vs. Post: 68.5%, ES 0.69, -0.05;1.43), Δ[HHb] (Pre vs. Post: 12.7%, ES 0.24, -0.11;0.59) and heart rate (Pre vs. Post: 1.4%, ES 0.21, -0.13;0.55, Mid vs. Post: 1.6%, ES 0.25, -0.09;0.60). IPC also attenuated the fatigue index in the Wingate test (Mid vs. Post: -8.4%, ES -0.37, -0.79;0.05). VO2peak and maximal aerobic power remained unchanged in both groups. Changes in blood markers of the hypoxic response, vasodilation, and angiogenesis remained within the normal clinical range in both groups. We concluded that IPC combined with SIT induces greater adaptations in cycling endurance performance that may be related to muscle perfusion and metabolic changes. The absence of elevated markers of immune function suggests that chronic IPC is devoid of deleterious effects in athletes, and is thus a safe and potent ergogenic tool.
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Affiliation(s)
- Pénélope Paradis-Deschênes
- Département de kinésiologie, Université Laval, Québec, QC, Canada
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, QC, Canada
| | - Denis R. Joanisse
- Département de kinésiologie, Université Laval, Québec, QC, Canada
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, QC, Canada
| | - Pascale Mauriège
- Département de kinésiologie, Université Laval, Québec, QC, Canada
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, QC, Canada
| | - François Billaut
- Département de kinésiologie, Université Laval, Québec, QC, Canada
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, QC, Canada
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48
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Späth MR, Koehler FC, Hoyer-Allo KJR, Grundmann F, Burst V, Müller RU. Preconditioning strategies to prevent acute kidney injury. F1000Res 2020; 9:F1000 Faculty Rev-237. [PMID: 32269763 PMCID: PMC7135682 DOI: 10.12688/f1000research.21406.1] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/20/2020] [Indexed: 02/06/2023] Open
Abstract
Acute kidney injury is a common clinical disorder resulting in significantly increased morbidity and mortality. However, despite extensive research, strategies for prevention or treatment are still lacking in routine clinical practice. Already decades ago, several preconditioning strategies (e. g. ischemic/hypoxic preconditioning and calorie restriction) have been published and their extraordinary effectiveness - especially in rodents - has raised the hope for powerful clinical tools to prevent acute kidney injury. However, the underlying mechanisms are still not completely understood and translation to the clinics has not been successful yet. In this review, the most attractive strategies and the current mechanistic concepts are introduced and discussed. Furthermore, we present clinical trials evaluating the feasibility of preconditioning in the clinical setting.
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Affiliation(s)
- Martin Richard Späth
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, NRW, 50937, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, NRW, 50931, Germany
| | - Felix Carlo Koehler
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, NRW, 50937, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, NRW, 50931, Germany
| | - Karla Johanna Ruth Hoyer-Allo
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, NRW, 50937, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, NRW, 50931, Germany
| | - Franziska Grundmann
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, NRW, 50937, Germany
| | - Volker Burst
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, NRW, 50937, Germany
| | - Roman-Ulrich Müller
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, NRW, 50937, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, NRW, 50931, Germany
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Abstract
Despite thousands of neuroprotectants demonstrating promise in preclinical trials, a neuroprotective therapeutic has yet to be approved for the treatment of acute brain injuries such as stroke or traumatic brain injury. Developing a more detailed understanding of models and populations demonstrating "neurological resilience" in spite of brain injury can give us important insights into new translational therapies. Resilience is the process of active adaptation to a stressor. In the context of neuroprotection, models of preconditioning and unique animal models of extreme physiology (such as hibernating species) reliably demonstrate resilience in the laboratory setting. In the clinical setting, resilience is observed in young patients and can be found in those with specific genetic polymorphisms. These important examples of resilience can help transform and extend the current neuroprotective framework from simply countering the injurious cascade into one that anticipates, monitors, and optimizes patients' physiological responses from the time of injury throughout the process of recovery. This review summarizes the underpinnings of key adaptations common to models of resilience and how this understanding can be applied to new neuroprotective approaches.
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Affiliation(s)
- Neel S Singhal
- Department of Neurology, University of California-San Francisco, 555 South Mission Bay Blvd, San Francisco, CA, 94158, USA.
| | - Chung-Huan Sun
- Department of Neurology, University of California-San Francisco, 555 South Mission Bay Blvd, San Francisco, CA, 94158, USA
| | - Evan M Lee
- Cardiovascular Research Institute, University of California-San Francisco, 555 South Mission Bay Blvd, San Francisco, CA, 94158, USA
- Department of Physiology, University of California-San Francisco, 555 South Mission Bay Blvd, San Francisco, CA, 94158, USA
| | - Dengke K Ma
- Cardiovascular Research Institute, University of California-San Francisco, 555 South Mission Bay Blvd, San Francisco, CA, 94158, USA
- Department of Physiology, University of California-San Francisco, 555 South Mission Bay Blvd, San Francisco, CA, 94158, USA
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50
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Mallat Z, Hulot JS. Suppression of Hematopoiesis in Recurrent Myocardial Infarction: A Deadly Silence. J Am Coll Cardiol 2020; 75:916-918. [PMID: 32130927 DOI: 10.1016/j.jacc.2020.01.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 01/07/2020] [Accepted: 01/13/2020] [Indexed: 12/22/2022]
Affiliation(s)
- Ziad Mallat
- Department of Medicine, Division of Cardiovascular Medicine, University of Cambridge, Cambridge, United Kingdom; Université de Paris, PARCC, INSERM, F-75015 Paris, France.
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