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https://www.readbyqxmd.com/read/29745735/time-trial-performance-in-elite-speed-skaters-after-remote-ischemic-preconditioning
#1
Philippe Richard, François Billaut
PURPOSE: Speed skating leads to blood-flow restriction and deoxygenation in the lower limbs (especially the right leg) that may affect performance. Although the acute influence of such deoxygenation is not clearly understood, we tested whether remote ischemic preconditioning (RIPC) could modify muscular oxygenation and improve time-trial performance in that sport. METHODS: Using a randomized, single-blind, placebo-controlled, crossover design, 9 elite speed skaters performed 1000-m on-ice time-trials preceded by either RIPC of the upper limbs (3x5-min compression/5-min reperfusion cycles at 30 mmHg > arterial systolic pressure) or SHAM (10 mmHg)...
May 10, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29726013/effect-of-comprehensive-remote-ischemic-conditioning-in-anterior-st-elevation-myocardial-infarction-undergoing-primary-percutaneous-coronary-intervention-design-and-rationale-of-the-coric-mi-randomized-trial
#2
Li Song, Hongbing Yan, Peng Zhou, Hanjun Zhao, Chen Liu, Zhaoxue Sheng, Yu Tan, Yi Chen, Jiannan Li, Jinying Zhou
BACKGROUND: Remote ischemic conditioning (RIC) applied during or after an ST-segment elevation myocardial infarction (STEMI) is currently the most promising adjuvant therapy to reduce reperfusion injury. Recent animal studies showed that RIC may help the myocardium recover if applied daily during the month after an STEMI. METHODS: The CORIC-MI trial is a single-center, randomized controlled study. 200 patients undergoing primary percutaneous coronary intervention (PPCI) for anterior STEMI will be randomized in a 1:1 ratio into comprehensive RIC (CORIC) or no intervention (control)...
May 3, 2018: Clinical Cardiology
https://www.readbyqxmd.com/read/29703217/the-release-of-cardioprotective-humoral-factors-after-remote-ischemic-preconditioning-in-humans-is-age-and-sex-dependent
#3
André Heinen, Friederike Behmenburg, Aykut Aytulun, Maximilian Dierkes, Lea Zerbin, Wolfgang Kaisers, Maximilian Schaefer, Tanja Meyer-Treschan, Susanne Feit, Inge Bauer, Markus W Hollmann, Ragnar Huhn
BACKGROUND: Preclinical and proof-of-concept studies suggest a cardioprotective effect of remote ischemic preconditioning (RIPC). However, two major clinical trials (ERICCA and RIPHeart) failed to show cardioprotection by RIPC. Aging and gender might be confounding factors of RIPC affecting the inter-organ signalling. Theoretically, confounding factors might prevent the protective potency of RIPC by interfering with cardiac signalling pathways, i.e. at the heart, and/or by affecting the release of humoral factor(s) from the remote organ, e...
April 27, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29669963/protective-effect-of-remote-ischemic-preconditioning-on-myocardial-damage-after-percutaneous-coronary-intervention-in-stable-angina-patients-with-complex-coronary-lesions-subanalysis-of-a-randomized-controlled-trial
#4
Kentaro Ejiri, Toru Miyoshi, Kunihisa Kohno, Makoto Nakahama, Masayuki Doi, Mitsuru Munemasa, Masaaki Murakami, Atsushi Takaishi, Kazufumi Nakamura, Hiroshi Ito
BACKGROUND: The effect of remote ischemic preconditioning (RIPC) on periprocedural myocardial damage (pMD) in patients undergoing percutaneous coronary intervention (PCI) is controversial. The aim of this study was to investigate the effect of RIPC or intravenous nicorandil on pMD following elective PCI in a subgroup of patients with complex coronary lesions from a multicenter randomized controlled trial.Methods and Results:Patients with stable angina who underwent elective PCI were assigned to 3 groups: control, upper-limb RIPC or intravenous nicorandil...
April 18, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29664057/remote-ischemic-postconditioning-for-ischemic-stroke-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#5
Jing-Jing Zhao, Hui Xiao, Wen-Bo Zhao, Xiao-Pei Zhang, Yu Xiang, Zeng-Jie Ye, Miao-Miao Mo, Xue-Ting Peng, Lin Wei
Background: Remote ischemic postconditioning (RIPostC) appears to protect distant organs from ischemia-reperfusion injury (IRI). However, cerebral protection results have remained inconclusive. In the present study, a meta-analysis was performed to compare stroke patients with and without RIPostC. Methods: CNKI, WanFang, VIP, CBM, PubMed, and Cochrane Library databases were searched up to July 2016. Data were analyzed using both fixed-effects and random-effects models by Review Manager...
April 20, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29659585/protective-effect-of-nicorandil-on-myocardial-injury-following-percutaneous-coronary-intervention-in-older-patients-with-stable-coronary-artery-disease-secondary-analysis-of-a-randomized-controlled-trial-rinc
#6
Norifumi Kawakita, Kentaro Ejiri, Toru Miyoshi, Kunihisa Kohno, Makoto Nakahama, Masayuki Doi, Mitsuru Munemasa, Masaaki Murakami, Kazufumi Nakamura, Hiroshi Ito
BACKGROUND: Our previous study examined an effect of remote ischemic preconditioning (RIPC) or intravenous nicorandil on reduction of periprocedural myocardial injury (pMI) following percutaneous coronary intervention (PCI) in patients with stable coronary artery disease (CAD). We further investigated the effect of RIPC or nicorandil on pMI in older patients. METHODS: Patients with stable CAD who planned to undergo PCI were assigned to a 1:1:1 ratio to control, intravenous nicorandil, or upper-limb RIPC groups...
2018: PloS One
https://www.readbyqxmd.com/read/29617450/limb-remote-ischemic-conditioning-of-the-recipient-protects-the-liver-in-a-rat-model-of-arterialized-orthotopic-liver-transplantation
#7
Zoltan Czigany, Christian Bleilevens, Christian Beckers, Christian Stoppe, Michaela Möhring, Andras Fülöp, Attila Szijarto, Georg Lurje, Ulf P Neumann, René H Tolba
BACKGROUND: Ischemic-reperfusion (IR) injury still represents a major concern in clinical transplantation, especially in the era of extreme organ shortage and extended criteria donor organs. In the present study we aimed to investigate the hepatoprotective effects of remote ischemic conditioning (RIC) in a rat model of arterialized orthotopic liver transplantation (OLT). METHODS: Male Lewis rats were used (n = 144 / 72 OLT cases; 240-340g) as donors and recipients...
2018: PloS One
https://www.readbyqxmd.com/read/29574462/remote-limb-ischemic-preconditioning-attenuates-cerebrovascular-depression-during-sinusoidal-galvanic-vestibular-stimulation-via-%C3%AE-1-adrenoceptor-protein-kinase-c%C3%AE%C2%B5-endothelial-no-synthase-pathway-in-rats
#8
Devin W McBride, Cesar Reis, John H Zhang, Richard Applegate, Jiping Tang
BACKGROUND: Vasovagal syncope (VVS) is characterized by hypotension and bradycardia followed by lowering of cerebral blood flow. Remote limb ischemic preconditioning (RIPC) is well documented to provide cardio- and neuroprotection as well as to improve cerebral blood flow. We hypothesized that RIPC will provide protection against VVS-induced hypotension, bradycardia, and cerebral hypoperfusion. Second, because endothelial nitric oxide synthase has been reported as a mediator of cerebral blood flow control, we hypothesized that the mechanism by which RIPC primes the vasculature against VVS is via the α1 -adrenoceptor-protein kinase Cε-endothelial nitric oxide synthase pathway...
March 24, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29533954/repeated-non-invasive-limb-ischemic-preconditioning-confers-cardioprotection-through-pkc-%C3%B4-stat3-signaling-in-diabetic-rats
#9
Chunyan Wang, Haobo Li, Sheng Wang, Xiaowen Mao, Dan Yan, Stanley S Wong, Zhengyuan Xia, Michael G Irwin
BACKGROUND/AIMS: Protein kinase C(PKC)-ε activation is a mechanism of preconditioning cardioprotection but its role in repeated non-invasive limb ischemic preconditioning (rNLIP) mediated cardioprotection against myocardial ischemia/reperfusion (I/R) injury in diabetes is unknown. METHODS: Eight-week streptozotocin-induced diabetic and non-diabetic Sprague-Dawley rats were subjected to I/R without or with rNLIP. In vitro, H9C2 cells were cultured with high glucose (HG) and subjected to hypoxia/re-oxygenation (H/R) without or with PKC-ε or STAT3 gene knock-down in the absence or presence of remote time hypoxia preconditioning (HPC)...
March 7, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29478025/hypoxia-inducible-factor-1%C3%AE-plays-a-key-role-in-remote-ischemic-preconditioning-against-stroke-by-modulating-inflammatory-responses-in-rats
#10
Jian Yang, Cuiying Liu, Xiangnan Du, Menglei Liu, Xunming Ji, Huishan Du, Heng Zhao
BACKGROUND: Limb remote ischemic preconditioning (RIPC) protects against brain injury induced by stroke, but the underlying protective mechanisms remain unknown. As hypoxia inducible factor 1α (HIF-1α) is neuroprotective in stroke and mediates neuroinflammation, we tested the hypothesis that HIF-1α is a key factor of RIPC against stroke by mediating inflammation. METHODS AND RESULTS: Stroke was induced by transient middle cerebral artery occlusion in rats, and RIPC was conducted in both hind limbs...
February 24, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29467715/limb-remote-ischemic-conditioning-mechanisms-anesthetics-and-the-potential-for-expanding-therapeutic-options
#11
REVIEW
Gangling Chen, Mrugesh Thakkar, Christopher Robinson, Sylvain Doré
Novel and innovative approaches are essential in developing new treatments and improving clinical outcomes in patients with ischemic stroke. Remote ischemic conditioning (RIC) is a series of mechanical interruptions in blood flow of a distal organ, following end organ reperfusion, shown to significantly reduce infarct size through inhibition of oxidation and inflammation. Ischemia/reperfusion (I/R) is what ultimately leads to the irreversible brain damage and clinical picture seen in stroke patients. There have been several reports and reviews about the potential of RIC in acute ischemic stroke; however, the focus here is a comprehensive look at the differences in the three types of RIC (remote pre-, per-, and postconditioning)...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29462606/limb-remote-ischemic-post-conditioning-mitigates-brain-recovery-in-a-mouse-model-of-ischemic-stroke-by-regulating-reactive-astrocytic-plasticity
#12
Xue Cheng, Haiping Zhao, Feng Yan, Zhen Tao, Rongliang Wang, Ziping Han, Guangwen Li, Yumin Luo, Xunming Ji
Maladaptive alterations of astrocytic plasticity may cause brain edema in the acute stage of stroke and glial scar formation in the recovery stage. The present study was designed to investigate the potential regulation of limb remote ischemic post-conditioning (RIPC) on astrocytic plasticity in experimental cerebral ischemia-reperfusion injury. Cerebral ischemia was induced by transient middle cerebral artery occlusion (tMCAO) for 1 h in C57BL/6 mice, who were treated with RIPC immediately after reperfusion...
May 1, 2018: Brain Research
https://www.readbyqxmd.com/read/29452253/remote-limb-ischemic-postconditioning-protects-against-cerebral-ischemia-reperfusion-injury-by-activating-ampk-dependent-autophagy
#13
Hao Guo, Lei Zhao, Bodong Wang, Xia Li, Hao Bai, Haixiao Liu, Liang Yue, Wei Guo, Zhenyuan Bian, Li Gao, Dayun Feng, Yan Qu
Remote limb ischemic postconditioning (RIPoC) is a promising adjunct treatment for cerebral ischemia-reperfusion (IR) injury. However, the underlying mechanisms have not been fully elucidated yet. The present study aims to investigate potential involvement and regulatory mechanisms of autophagy in RIPoC treatment against cerebral IR injury in mice. Mice were subjected to 2 h middle cerebral artery occlusion (MCAO) then treated with vehicle, 3-methyladenine (3-MA, an autophagy inhibitor), or compound C (an AMPK inhibitor) at the onset of reperfusion...
February 13, 2018: Brain Research Bulletin
https://www.readbyqxmd.com/read/29443855/continuous-remote-ischemic-conditioning-attenuates-cognitive-and-motor-deficits-from-moderate-traumatic-brain-injury
#14
Viraj Pandit, Muhammad Khan, El Rasheid Zakaria, Tally M Largent-Milnes, Mohammad Hamidi, Terence O'Keeffe, Todd W Vanderah, Bellal Joseph
INTRODUCTION: While studies show that single-dose remote ischemic conditioning (RIC) improves outcomes, the effect of continuous (daily) RIC is unknown. Thus, we aimed to investigate the role of continuous-RIC on cognitive and motor function following traumatic brain injury (TBI). METHODS: We subjected 24 male C57BL mice to a cortical-controlled TBI. Two-hours after TBI the animals were randomly allocated to the RIC group (n=12) or the Sham group (n=12). RIC was induced by non-invasive external compression of the hind limb using an occlusive band (six 4-min cycles/24 hours) for consecutive 6 days...
February 14, 2018: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29429928/effect-of-remote-ischemic-preconditioning-on-intestinal-ischemia-reperfusion-injury-in-adults-undergoing-on-pump-cabg-surgery-a-randomized-controlled-pilot-trial
#15
Rafael Struck, Maria Wittmann, Stefan Müller, Patrick Meybohm, Andreas Müller, Soyhan Bagci
OBJECTIVE: Cardiopulmonary bypass (CPB) surgery commonly threatens the heart and remote organs with ischemia-reperfusion injury. Transient episodes of ischemia to nonvital tissue, known as remote ischemic preconditioning (RIPC), is thought to help local and remote vital organs to withstand subsequent ischemic insults. DESIGN: Prospective, randomized, double-blinded control trial. SETTING: Tertiary referral academic teaching hospital. PARTICIPANTS: Thirty patients undergoing elective CPB surgery INTERVENTION: RIPC was achieved via three 5-minute cycles of upper limb ischemia using a blood pressure cuff or control (sham cuff)...
July 27, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29399973/remote-limb-ischemic-postconditioning-promotes-motor-function-recovery-in-a-rat-model-of-ischemic-stroke-via-the-up-regulation-of-endogenous-tissue-kallikrein
#16
Dan Liang, Xi-Biao He, Zheng Wang, Ce Li, Bei-Yao Gao, Jun-Fa Wu, Yu-Long Bai
AIMS: Remote ischemic conditionings, such as pre- and per-conditioning, are known to provide cardioprotection in animal models of ischemia. However, little is known about the neuroprotection effect of postconditioning after cerebral ischemia. In this study, we aim to evaluate the motor function rescuing effect of remote limb ischemic postconditioning (RIPostC) in a rat model of acute cerebral stroke. METHODS: Left middle cerebral artery occlusion (MCAO) was performed to generate the rat model of ischemic stroke, followed by daily RIPostC treatment for maximum 21 days...
February 4, 2018: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/29395650/remote-limb-ischemic-conditioning-during-cerebral-ischemia-reduces-infarct-size-through-enhanced-collateral-circulation-in-murine-focal-cerebral-ischemia
#17
Kazuo Kitagawa, Moeko Saitoh, Kentaro Ishizuka, Satoru Shimizu
BACKGROUND: Remote ischemic conditioning (RIC) induces protection in focal cerebral ischemia. The conditioning is divided into pre-, per-, and postconditioning. However, the mechanisms of RIC remain unknown. OBJECTIVES: This study aimed to determine the most effective subtype of RIC. We also examined involvement of collateral circulation on RIC. METHODS: Transient middle cerebral artery occlusion (MCAO) was performed with nylon sutures in adult C57BL/6 mice under the monitoring of cerebral blood flow (CBF)...
April 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29365089/stat5-dependent-cardioprotection-in-late-remote-ischaemia-preconditioning
#18
Hui Chen, Xin-Yue Jing, Yu-Jun Shen, Tian-Lin Wang, Chen Ou, Sheng-Feng Lu, Yun Cai, Qian Li, Xia Chen, Ya-Juan Ding, Xiao-Chun Yu, Bing-Mei Zhu
Aims: To study the protective effects of late remote ischaemic preconditioning (RIPC) against myocardial ischaemia/reperfusion (I/R) injury and determine whether Stat5 is involved in this protection by using cardiomyocyte-specific Stat5 knockout mice (Stat5-cKO). Methods and results: Mice were exposed to lower limb RIPC or sham ischaemia. After 24 h, the left anterior descending artery (LAD) was ligated for 30 min, then reperfused for 180 min. The myocardial infarct size (IS), apoptotic rate of cardiomyocytes, and serum myocardial enzymes were measured to evaluate for cardioprotective effects...
April 1, 2018: Cardiovascular Research
https://www.readbyqxmd.com/read/29363651/rationale-and-study-design-for-a-single-arm-phase-iia-study-investigating-feasibility-of-preventing-ischemic-cerebrovascular-events-in-high-risk-patients-with-acute-non-disabling-ischemic-cerebrovascular-events-using-remote-ischemic-conditioning
#19
Shi-Meng Liu, Wen-Le Zhao, Hai-Qing Song, Ran Meng, Si-Jie Li, Chang-Hong Ren, Bruce Ovbiagele, Xun-Ming Ji, Wu-Wei Feng
BACKGROUND: Acute minor ischemic stroke (AMIS) or transient ischemic attack (TIA) is a common cerebrovascular event with a considerable high recurrence. Prior research demonstrated the effectiveness of regular long-term remote ischemic conditioning (RIC) in secondary stroke prevention in patients with intracranial stenosis. We hypothesized that RIC can serve as an effective adjunctive therapy to pharmacotherapy in preventing ischemic events in patients with AMIS/TIA. This study aimed to investigate the feasibility, safety, and preliminary efficacy of daily RIC in inhibiting cerebrovascular/cardiovascular events after AMIS/TIA...
February 5, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29315844/local-and-systemic-coagulation-marker-response-to-musculocutaneous-flap-ischemia-reperfusion-injury-and-remote-ischemic-conditioning-an-experimental-study-in-a-porcine-model
#20
Andreas Engel Krag, Christine Lodberg Hvas, Birgitte Jul Kiil, Gete Toft Eschen, Tine Engberg Damsgaard, Anne-Mette Hvas
BACKGROUND: Remote ischemic conditioning (RIC) administered by non-lethal periods of extremity ischemia and reperfusion attenuates ischemia-reperfusion injury. We aimed to investigate the local and systemic coagulation marker response to flap ischemia-reperfusion injury, and the effects of RIC on coagulation markers following flap ischemia-reperfusion injury. METHODS: A musculocutaneous latissimus dorsi flap was subjected to 4 h of ischemia followed by 7 h of reperfusion in 16 female Danish Landrace pigs (39 kg)...
January 8, 2018: Microsurgery
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