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https://www.readbyqxmd.com/read/28637049/protecting-oligodendrocytes-by-targeting-non-glutamate-receptors-as-a-new-therapeutic-strategy-for-ischemic-stroke
#1
Pan Luo, Dong Liu, Lianjun Guo
Ischemic stroke has many devastating effects within the brain. At the cellular level, excitotoxicity has been a popular pharmacological target for therapeutics. To date, many clinical trials have been performed with drugs that target excitatory neurotransmitter receptors, such as NMDA receptor agonists. The results, however, have been lackluster. Most efforts to understand the impacts of excitotoxicity on the brain have focused primarily on neurons, and to a lesser degree, on gliocytes as cellular targets. Recent evidence suggests that oligodendrocytes (OLGs), the myelin-forming cells in the central nervous system, are damaged by ischemia in a manner completely different from that in neurons...
June 21, 2017: Pharmacology
https://www.readbyqxmd.com/read/28634219/early-use-of-n-acetylcysteine-nac-with-nitrate-therapy-in-patients-undergoing-primary-percutaneous-coronary-intervention-for-st-segment-elevation-myocardial-infarction-reduces-myocardial-infarct-size-the-naciam-trial
#2
Sivabaskari Pasupathy, Rosanna Tavella, Suchi Grover, Betty Raman, Nathan E K Procter, Yang T Du, Gnanadevan Mahadavan, Irene Stafford, Tamila Heresztyn, Andrew Holmes, Christopher Zeitz, Margaret Arstall, Joseph B Selvanayagam, John D Horowitz, John F Beltrame
Background -Contemporary ST-elevation myocardial infarction (STEMI) management involves primary percutaneous coronary intervention (PCI) with on-going studies focusing on infarct size reduction utilizing ancillary therapies. N-acetylcysteine (NAC) is an antioxidant with reactive oxygen species scavenging properties that also potentiates the effects of nitroglycerin (NTG) and thus represents a potentially beneficial ancillary therapy in primary PCI. The NACIAM (NACIn Acute Myocardial infarction) trial examined the effects of NAC on infarct size in STEMI patients undergoing PCI...
June 20, 2017: Circulation
https://www.readbyqxmd.com/read/28630267/a-structured-review-of-antithrombotic-therapy-in-peripheral-artery-disease-with-a-focus-on-revascularization-a-tasc-intersociety-consensus-for-the-management-of-peripheral-artery-disease-initiative
#3
REVIEW
Connie N Hess, Lars Norgren, Gary M Ansel, Warren H Capell, John P Fletcher, F Gerry R Fowkes, Anders Gottsäter, Kerry Hitos, Michael R Jaff, Joakim Nordanstig, William R Hiatt
Peripheral artery disease affects >200 million people worldwide and is associated with significant limb and cardiovascular morbidity and mortality. Limb revascularization is recommended to improve function and quality of life for symptomatic patients with peripheral artery disease with intermittent claudication who have not responded to medical treatment. For patients with critical limb ischemia, the goals of revascularization are to relieve pain, help wound healing, and prevent limb loss. The baseline risk of cardiovascular and limb-related events demonstrated among patients with stable peripheral artery disease is elevated after revascularization and related to atherothrombosis and restenosis...
June 20, 2017: Circulation
https://www.readbyqxmd.com/read/28629520/the-erythropoietin-system-protects-the-heart-upon-injury-by-cardiac-progenitor-cell-activation
#4
Maria P Zafeiriou
Erythropoietin (EPO) is a growth hormone, widely known for its role in erythropoiesis. The broad expression of erythropoietin receptor (EPOR) in adult organs suggested that EPO may also affect other cells besides late erythroid progenitors. In the embryonic heart, EPOR is expressed in all cells including the immature proliferating cardiomyocytes. In contrast to the embryonic heart in adulthood, EPOR expression is decreased and mainly detected in immature proliferating cells (i.e., resident cardiac progenitor cells) rather than in terminally differentiated cells (i...
2017: Vitamins and Hormones
https://www.readbyqxmd.com/read/28629519/erythropoietin-endogenous-protection-of-ischemic-brain
#5
Robert T Mallet, Myoung-Gwi Ryou
The human brain requires uninterrupted delivery of blood-borne oxygen and nutrients to sustain its function. Focal ischemia, particularly, ischemic stroke, and global ischemia imposed by cardiac arrest disrupt the brain's fuel supply. The resultant ATP depletion initiates a complex injury cascade encompassing intracellular Ca(2+) overload, glutamate excitotoxicity, oxido-nitrosative stress, extracellular matrix degradation, and inflammation, culminating in neuronal and astroglial necrosis and apoptosis, neurocognitive deficits, and even death...
2017: Vitamins and Hormones
https://www.readbyqxmd.com/read/28629476/stromal-vascular-fraction-cells-for-the-treatment-of-critical-limb-ischemia-a-pilot-study
#6
Adas Darinskas, Mindaugas Paskevicius, Gintaras Apanavicius, Gintaris Vilkevicius, Liutauras Labanauskas, Thomas E Ichim, Rytis Rimdeika
BACKGROUND: Cell-based therapy is being explored as an alternative treatment option for critical limb ischemia (CLI), a disease associated with high amputation and mortality rates and poor quality of life. However, therapeutic potential of uncultured adipose-derived stromal vascular fraction (SVF) cells has not been evaluated as a possible treatment. In this pilot study, we investigated the efficacy of multiple injections of autologous uncultured adipose-derived SVF cells to treat patients with CLI...
June 19, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28625785/cerebral-ischemia-repefusion-injury-from-bench-space-to-bedside
#7
REVIEW
Z Nagy, S Nardai
While stroke research represents the primary interface between circulation and brain research, the hemostasis system also carries a pivotal role in the mechanism of vascular brain injury. The complex interrelated events triggered by the energy crisis have a specific spatial and temporal pattern arching from the initial damage to the final events of brain repair. The complexity of the pathophysiology make it difficult to model this disease, therefore it is challenging to find appropriate therapeutic targets...
June 15, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28625438/efficacy-of-prophylactic-doses-of-intravenous-nitroglycerin-in-preventing-myocardial-ischemia-under-general-anesthesia-a-systematic-review-and-meta-analysis-with-trial-sequential-analysis
#8
REVIEW
Hiroshi Hoshijima, Yohei Denawa, Takahiro Mihara, Risa Takeuchi, Norifumi Kuratani, Tsutomu Mieda, Yoshinori Iwase, Toshiya Shiga, Zen'ichiro Wajima, Hiroshi Nagasaka
STUDY OBJECTIVE: To evaluate the efficacy of intravenous nitroglycerin (TNG) in preventing intraoperative myocardial ischemia (MI) under general anesthesia. Moreover, we analyzed the hemodynamic changes in heart rate (HR), mean blood pressure (MBP), and pulmonary capillary wedge pressure (PCWP) associated with TNG administration both before and after the induction of anesthesia. DESIGN: Meta-analysis. SETTING: Operating room, cardiac surgery or non-cardiac surgery, all surgeries were elective measurements...
August 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28618996/the-influence-of-obese-insulin-resistance-on-the-outcome-of-the-ischemia-reperfusion-insult-to-the-heart
#9
Krekwit Shinlapawittayatorn, Siriporn C Chattipakorn, Nipon Chattipakorn
BACKGROUND: Obese insulin-resistance is one of the most important risk factor for cardiovascular diseases including ischemic heart disease (IHD). Growing evidences suggest that the susceptibility to myocardial ischemia-reperfusion (I/R) injury is increased in an obese insulin-resistance condition. Based on the currently available evidence from human and animal studies, this review mainly focuses on the influence of obese insulin-resistance on the outcome of the I/R insult to the heart...
June 16, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28617391/-cerebral-markers-of-endothelial-dysfunction-in-chronic-brain-ischemia
#10
V V Fateeva, O V Vorob'eva
A review of the main markers of endothelial dysfunction in chronic cerebral ischemia is presented. The quantitative changes in the level of endothelial dysfunction markers in chronic cerebral ischemia help to evaluate the efficacy of preventive and therapeutic pharmacological activities. The results of clinical trials have demonstrated that the course use of divazа in patients with chronic cerebral ischemia leads to improvement of both clinical indicators and laboratory markers for normalization of cerebral ischemia and endothelial dysfunction...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28617387/-pharmacological-neuroprotection-in-stroke-in-clinical-practice-new-perspectives
#11
D V Sergeev, M A Domashenko, M A Piradov
Despite recent advances in acute stroke care, clinical armamentarium against stroke remains limited. Furthermore, highly effective approaches to stroke treatment, such as systemic reperfusion and mechanical thrombectomy, cannot be performed in the majority of patients. Neuroprotective strategies, i.e. prevention of irreversible cell damage due to the ischemia, may improve stroke outcomes. However, only few pharmacological agents demonstrated clinical efficacy. Citicoline is an endogenous mononucleotide with neuroprotective effect and established clinical safety and tolerability, which effectiveness in acute stroke was studied in several large, well-controlled trials...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28616291/intensive-blood-pressure-control-in-patients-with-acute-type-b-aortic-dissection-raid-study-protocol-for-randomized-controlled-trial
#12
REVIEW
Jian-Cang Zhou, Nan Zhang, Zhong-Heng Zhang, Ting-Ting Wang, Yue-Feng Zhu, Hui Kang, Wei-Min Zhang, Dong-Lin Li, Wei-Dong Li, Zhen-Jie Liu, Xi-Min Qian, Ming-You Zhang, Jue Wang, Mi Zhou, Zhi-Tao Yang, Yun-Xian Yu, Hang-Yang Li, Jian Zhang, Yong-Gang Wang, Jian-Ping Gao, Lin Ling, Kong-Han Pan
BACKGROUND: Blood pressure control is an essential therapy for patients with acute type B aortic dissection (ABAD) and should be maintained throughout the entire treatment. Thus, vast majority current guidelines recommend control the blood pressure to lower than 140/90 mmHg. Theoretically, a much lower target may further decrease the risk of propagation of dissection. However, some argued that too lower blood pressure would compromise the organ perfusion. Thus, there is no unanimous optimal target for blood pressure in patients with ABAD so far...
May 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28611661/discovery-and-development-of-calcium-channel-blockers
#13
REVIEW
Théophile Godfraind
In the mid 1960s, experimental work on molecules under screening as coronary dilators allowed the discovery of the mechanism of calcium entry blockade by drugs later named calcium channel blockers. This paper summarizes scientific research on these small molecules interacting directly with L-type voltage-operated calcium channels. It also reports on experimental approaches translated into understanding of their therapeutic actions. The importance of calcium in muscle contraction was discovered by Sidney Ringer who reported this fact in 1883...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28609381/remote-ischemic-conditioning-preserves-cognition-and-motor-coordination-in-a-mouse-model-of-traumatic-brain-injury
#14
Alexander J Sandweiss, Asad Azim, Kareem Ibraheem, Tally M Largent-Milnes, Peter Rhee, Todd W Vanderah, Bellal Joseph
INTRODUCTION: Management of traumatic brain injury (TBI) is focused on minimizing or preventing secondary brain injury. Remote ischemic conditioning (RIC) is an established treatment modality that has been shown to improve patient outcomes in different clinical settings by influencing inflammatory insults. In a clinical trial, RIC showed amelioration of SB100 and NSE. The aim of our study was to further elucidate the mechanisms and outcome when applying RIC in a mouse model of traumatic brain injury...
June 13, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28603176/autologous-bone-marrow-mononuclear-cell-implantation-and-its-impact-on-the-outcome-of-patients-with-critical-limb-ischemia%C3%A3-results-of-a-randomized-double-blind-placebo-controlled-trial
#15
Bernard Pignon, Marie-Antoinette Sevestre, Lukshe Kanagaratnam, Gilles Pernod, Dominique Stephan, Joseph Emmerich, Claude Clement, Gabrielle Sarlon, Carine Boulon, Claire Tournois, Philippe Nguyen
BACKGROUND: Cell therapy is a therapeutic option for patients presenting with nonrevascularizable critical limb ischemia (CLI). However there is a lack of firm evidence on its efficacy because of the paucity of randomized controlled trials.Methods and Results:The BALI trial was a multicenter, randomized, controlled, double-blind clinical trial that included 38 patients. For all of them, 500 mL of bone marrow were collected for preparation of a BM-MNC product that was implanted in patients assigned to active treatment...
June 10, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28600024/efficacy-of-cilostazol-for-below-the-knee-artery-disease-after-balloon-angioplasty-in-patients-with-severe-limb-ischemia-cabbage-trial
#16
Yoshimitsu Soga, Mitsuyoshi Takahara, Osamu Iida, Yasutaka Yamauchi, Keisuke Hirano, Masashi Fukunaga, Kan Zen, Kenji Suzuki, Yoshiaki Shintani, Yusuke Miyashita, Taketsugu Tsuchiya, Terutoshi Yamaoka, Kenji Ando
BACKGROUND: Optimal medical therapy after endovascular therapy in patients with critical limb ischemia (CLI) remains unclear. Therefore, we investigated whether cilostazol reduce restenosis after balloon angioplasty for infrapopliteal lesions in CLI patietns. METHODS: This study was performed as a multicenter prospective randomized open-label blinded-endpoint study with independent angiographic core lab adjudication. Sixty patients were eligible and 53 patients were enrolled and allocated...
June 6, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28596447/impact-of-thrombus-length-on-outcomes-after-intra-arterial-aspiration-thrombectomy-in-the-therapy-trial
#17
Albert J Yoo, Pooja Khatri, J Mocco, Osama O Zaidat, Rishi Gupta, Donald Frei, Demetrius Lopes, Harish Shownkeen, Olvert A Berkhemer, Denise Meyer, Susana S Hak, Sophia S Kuo, Hope Buell, Arani Bose, Siu Po Sit, Rüdiger von Kummer
BACKGROUND AND PURPOSE: Increasing thrombus length (TL) impedes recanalization after intravenous (IV) thrombolysis. We sought to determine whether the clinical benefit of aspiration thrombectomy relative to IV r-tPA (recombinant tissue-type plasminogen activator) may be greater at longer TL. METHODS: THERAPY was a randomized trial of aspiration thrombectomy plus IV r-tPA versus IV r-tPA alone in large-vessel stroke patients with prospective TL measurement ≥8 mm...
June 8, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28595547/beneficial-effects-of-n-acetylcysteine-and-n-mercaptopropionylglycine-on-ischemia-reperfusion-injury-in-the-heart
#18
Monika Bartekova, Miroslav Barancik, Kristina Ferenczyova, Narajan S Dhalla
Ischemia-reperfusion (I/R) injury of the heart as a consequence of myocardial infarction or cardiac surgery represents a serious clinical problem. One of the most prominent mechanisms of I/R injury is the development of oxidative stress in the heart. In this regard, I/R has been shown to enhance the production of reactive oxygen/nitrogen species in the heart which lead to the imbalance between the pro-oxidants and antioxidant capacities of the endogenous radical-scavenging systems. Accordingly, increasing the antioxidant capacity of the heart by the administration of exogenous antioxidants is considered beneficial for the heart exposed to I/R...
June 8, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28595190/nonpharmacological-biomechanical-approaches-to-control-inflammation-in-acute-kidney-injury
#19
Shinji Tanaka, Tsuyoshi Inoue, John A Hossack, Mark D Okusa
Inflammation is broadly recognized as an important factor in the pathogenesis of acute kidney injury (AKI), but pharmacological approaches to alleviate inflammation in AKI have been without success in clinical trials. Neuromodulation by nonpharmacological methods is emerging as a novel therapeutic strategy to treat inflammatory diseases. Recently, our group and others have demonstrated that vagus nerve stimulation and pulsed ultrasound ameliorated inflammation via the cholinergic anti-inflammatory pathway (CAP) in various animal models, including renal ischemia-reperfusion injury...
June 9, 2017: Nephron
https://www.readbyqxmd.com/read/28593413/effect-of-ulinastatin-on-postoperative-renal-function-in-patients-undergoing-robot-assisted-laparoscopic-partial-nephrectomy-a-randomized-trial
#20
Bora Lee, Sook Young Lee, Na Young Kim, Koon Ho Rha, Young Deuk Choi, Sujung Park, So Yeon Kim
BACKGROUND: Robot-assisted laparoscopic partial nephrectomy (RLPN) is an emerging technique for treating small renal masses. Although RLPN has many advantages, ischemic kidney injury is inevitable during renal artery clamping. The overall incidence of acute kidney injury (AKI) after partial nephrectomy has been reported to be up to 39%. Moreover, effective pharmacological protection against AKI after partial nephrectomy has not yet been demonstrated. Ulinastatin has been shown to protect the kidney from ischemia/reperfusion injury via its anti-inflammatory and anti-oxidant activities...
June 7, 2017: Surgical Endoscopy
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