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https://www.readbyqxmd.com/read/29166571/protective-cerebrovascular-effects-of-hydroxysafflor-yellow-a-hsya-on-ischemic-stroke
#1
Yang Sun, Dong-Ping Xu, Zhen Qin, Peng-Yuan Wang, Bo-Han Hu, Jian-Guang Yu, Yong Zhao, Ben Cai, Yong-Ling Chen, Min Lu, Jian-Guo Liu, Xia Liu
The purpose of the present work was designed to explore protective cerebrovascular effects of hydroxysafflor yellow A (HSYA), and provide preclinical efficacy and mechanism data for its possible application in patients with cerebral ischemia. The protective effect of HSYA on ischemic stroke was evaluated by infarct sizes and neurological scores in Sprague-Dawley (SD) rats with middle cerebral artery occlusion (MCAO). Cerebrovascular permeability was detected by Evans blue dye leakage in MCAO rats. Cerebral blood flow, as well as blood pressure and heart rate were monitored using flow probes in Beagle dogs...
November 19, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29165871/shipping-living-donor-kidneys-and-transplant-recipient-outcomes
#2
Eric Treat, Eric K H Chow, John D Peipert, Amy Waterman, Lorna Kwan, Allan B Massie, Alvin G Thomas, Mary Grace Bowring, David Leeser, Stuart Flechner, Marc L Melcher, Sandip Kapur, Dorry L Segev, Jeffrey Veale
Kidney paired donation (KPD) is an important tool to facilitate living donor kidney transplantation (LDKT). Concerns remain over prolonged cold ischemia times (CIT) associated with shipping kidneys long distances through KPD. We examined the association between CIT and delayed graft function (DGF), allograft survival, and patient survival for 1,267 shipped and 205 non-shipped/internal KPD LDKTs facilitated by the National Kidney Registry in the United States from 2008-2015, compared to 4,800 unrelated, non-shipped, non-KPD LDKTs...
November 22, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/29165728/cardioprotective-effect-of-hydroxysafflor-yellow-a-via-the-cardiac-permeability-transition-pore
#3
Gavin A Huber, Sydney M Priest, Timothy P Geisbuhler
Myocardial ischemia damages cardiac myocytes in part via opening of the mitochondrial permeability transition pore. Preventing this pore's opening is therefore a useful therapeutic goal in treating cardiovascular disease. Hydroxysafflor yellow A has been proposed as a nontoxic alternative to other agents that modulate mitochondrial permeability transition pore opening. In this study, we proposed that hydroxysafflor yellow A prevents mitochondrial permeability transition pore formation in anoxic cardiac myocytes, and thus protects the cell from damage seen during reoxygenation of the cardiac myocytes...
November 17, 2017: Planta Medica
https://www.readbyqxmd.com/read/29164084/pretreatment-with-human-chorionic-gonadotropin-protects-the-neonatal-brain-against-the-effects-of-hypoxic-ischemic-injury
#4
Tammy Z Movsas, Rebecca L Weiner, M Banks Greenberg, David M Holtzman, Rafael Galindo
Introduction: Though the human fetus is exposed to placentally derived human chorionic gonadotropin (hCG) throughout gestation, the role of hCG on the fetal brain is unknown. Review of the available literature appears to indicate that groups of women with higher mean levels of hCG during pregnancy tend to have offspring with lower cerebral palsy (CP) risk. Given that newborn cerebral injury often precedes the development of CP, we aimed to determine whether hCG may protect against the neurodegenerative effects of neonatal brain injury...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29163824/targeting-cyclophilin-d-by-compound-19-protects-neuronal-cells-from-oxygen-glucose-deprivation-re-oxygenation
#5
Jinyu Zheng, Enhui Cui, Haikou Yang, Mao Li, Jing Zhou, Ming Yan, Jian Sun, De-Rong Tang
Oxygen and glucose deprivation (OGD) with re-oxygenation (OGDR) is applied to neuronal cells to mimic ischemia-reperfusion injuries. Activation of cyclophilin D (Cyp-D)-dependent programmed necrosis pathway mediates OGDR-induced neuronal cell damages. Here, we tested the potential effect of Compound 19 (C19), a novel Cyp-D inhibitor, in this process. In both established neuronal cell lines (Neuro-2a and NB41A3 cells) and the primary murine CA1 hippocampal neurons, pretreatment with C19 largely attenuated OGDR-induced cell viability reduction and cell death...
October 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/29163464/nlrp3-inflammasome-mediates-dormant-neutrophil-recruitment-following-sterile-lung-injury-and-protects-against-subsequent-bacterial-pneumonia-in-mice
#6
Xiaoli Tian, He Sun, Amy-Jo Casbon, Edward Lim, Kevin P Francis, Judith Hellman, Arun Prakash
Sterile lung injury is an important clinical problem that complicates the course of severely ill patients. Interruption of blood flow, namely ischemia-reperfusion (IR), initiates a sterile inflammatory response in the lung that is believed to be maladaptive. The rationale for this study was to elucidate the molecular basis for lung IR inflammation and whether it is maladaptive or beneficial. Using a mouse model of lung IR, we demonstrate that sequential blocking of inflammasomes [specifically, NOD-, LRR-, and pyrin domain-containing 3 (NLRP3)], inflammatory caspases, and interleukin (IL)-1β, all resulted in an attenuated inflammatory response...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29163163/guanxin-danshen-formulation-protects-against-myocardial-ischemia-reperfusion-injury-induced-left-ventricular-remodeling-by-upregulating-estrogen-receptor-%C3%AE
#7
Xuehong Deng, Xiaoyan Xing, Guibo Sun, Xudong Xu, Haifeng Wu, Guang Li, Xiaobo Sun
Background: Guanxin Danshen formulation (GXDSF) is a traditional Chinese herbal recipe recorded in the Chinese Pharmacopeia since 1995 edition, which consists of Salviae miltiorrhizae Radix et Rhizoma, Notoginseng Radix et Rhizoma and Dalbergiae odoriferae Lignum. Our previous research suggested GXDSF had positive effect on cardiovascular disease. Therefore, the aim of this study was to elucidate the effects of GXDSF on myocardial ischemia reperfusion injury-induced left ventricular remodelling (MIRI-LVR). Methods: The effects of GXDSF on cardiac function were detected by haemodynamics and echocardiograms...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29163161/inhibition-of-mir-128-3p-by-tongxinluo-protects-human-cardiomyocytes-from-ischemia-reperfusion-injury-via-upregulation-of-p70s6k1-p-p70s6k1
#8
Gui-Hao Chen, Chuan-Sheng Xu, Jie Zhang, Qing Li, He-He Cui, Xiang-Dong Li, Li-Ping Chang, Rui-Jie Tang, Jun-Yan Xu, Xia-Qiu Tian, Pei-Sen Huang, Jun Xu, Chen Jin, Yue-Jin Yang
Background and Aims: Tongxinluo (TXL) is a multifunctional traditional Chinese medicine that has been widely used to treat cardiovascular and cerebrovascular diseases. However, no studies have explored whether TXL can protect human cardiomyocytes (HCMs) from ischemia/reperfusion (I/R) injury. Reperfusion Injury Salvage Kinase (RISK) pathway activation was previously demonstrated to protect the hearts against I/R injury and it is generally activated via Akt or (and) Erk 1/2, and their common downstream protein, ribosomal protein S6 kinase (p70s6k)...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29163008/antioxidative-and-antiapoptotic-effects-of-delta-opioid-peptide-d-ala-2-d-leu-5-enkephalin-on-spinal-cord-ischemia-reperfusion-injury-in-rabbits
#9
Danyun Fu, Haitong Liu, Shitong Li, Lianhua Chen, Junyan Yao
Background: In our previous study, we found that regional administration of delta-opioid peptide [D-Ala(2), D-Leu(5)] enkephalin (DADLE) could provide dose-dependent protection on spinal cord ischemia-reperfusion (I/R) injury in rabbits. However, the relative protective molecular mechanisms underlying this neuroprotection remain unclear. The purpose of this study was to investigate whether DADLE provided the protection in spinal cord I/R injury through its antioxidant property by decreasing malondialdehyde (MDA) and nitric oxide (NO) levels and increasing glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) levels and through its antiapoptotic capacity by inhibiting caspase-3 and p53 expression...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29161807/intravenous-dextran-70-infusion-has-protective-effects-on-ischemia-reperfusion-injury-of-kidney-an-experimental-study
#10
Atilla Semercioz, Mustafa Z Temiz, Ipek Erbarut, Ugur Izol, Serdar Aykan, Murat Tuken, Engin Kandirali
BACKGROUND: Renal ischemia-reperfusion (IR) leads to alterations of tubular epithelial cells, interstitial microvasculopathy and endothelial cell dysfunction in peritubular capillaries. Although dextrans have deteriorative effects on healthy kidney, their favorable effects on post-ischemic microvascular disturbances have been demonstrated. Therefore, we aimed to investigate in vivo effects of systemic Dextran 70 administration in kidney tissue with ischemia-reperfusion injury. METHODS: Twenty-one rats were allocated as sham, IR and IR+ Dextran 70 treatment groups...
November 21, 2017: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/29160389/protective-effect-of-ischemic-preconditioning-on-myocardium-against-remote-tissue-injury-following-transient-focal-cerebral-ischemia-in-diabetic-rats
#11
Meltem Kumas, Ozge Altintas, Ersin Karatas, Abdurrahim Kocyigit
BACKGROUND: Remote ischemic preconditioning (IPreC) could provide tissue-protective effect at a remote site by anti-inflammatory, neuronal, and humoral signaling pathways. OBJECTIVES: The aim of the study was to investigate the possible protective effects of remote IPreC on myocardium after transient middle cerebral artery occlusion (MCAo) in streptozotocin- induced diabetic (STZ) and non-diabetic rats. METHODS: 48 male Spraque Dawley rats were divided into eight groups: Sham, STZ, IPreC, MCAo, IPreC+MCAo, STZ+IPreC, STZ+MCAo and STZ+IPreC+MCAo groups...
November 13, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29160368/the-effects-of-local-ischemic-preconditioning-and-topical-hypothermia-in-renal-ischemia-reperfusion-injury-in-rats
#12
Guilherme Behrend Ribeiro, Emanuel Burck Dos Santos, Silvia Regina Bona, Pedro Guilherme Schaefer, Tuane Alves Garcez, Eduardo Brasil Rabolini, Guilherme Pereira Smaniotto, Norma Possa Marroni, Carlos Otávio Corso
PURPOSE: Topical hypothermia and local ischemic preconditioning have been shown to reduce renal ischemia-reperfusion (I/R) injury individually. We examined whether combination of both strategies lessens renal I/R injury. METHODS: Post right nephrectomy, 40 male Wistar rats were randomly assigned to five experimental protocols performed in the left kidney: topical hypothermia without ischemia (TH), warm ischemia (IR), ischemic preconditioning followed by warm ischemia (IPC+IR), cold ischemia (TH+IR), and ischemic preconditioning followed by cold ischemia (IPC+TH+IR)...
October 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/29160366/erdosteine-ameliorates-the-harmful-effects-of-ischemia-reperfusion-injury-on-the-liver-of-rats
#13
Aziz Mutlu Barlas, Kemal Kismet, Serap Erel, Serdar Kuru, Turgut Cavusoglu, Mehmet Senes, Zeynep Adiyaman, Pinar Celepli, Sema Hucumenoglu, Recep Pekcici
PURPOSE: To investigate the potential protective effects of erdosteine against the harmful effects of ischemia-reperfusion injury on the liver in an experimental rat model. METHODS: Forty rats were divided into 4 groups. In the sham group, only the hepatic pedicle was mobilized. No other manipulation or treatment was performed. In the other groups, ischemia was achieved by clamping the hepatic pedicle for 60 min. After that, 90 min reperfusion was provided. In the control group, no treatment was given...
October 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/29159732/the-pgc-1%C3%AE-activator-zln005-ameliorates-ischemia-induced-neuronal-injury-in-vitro-and-in-vivo
#14
Yazhou Xu, John Alimamy Kabba, Wenchen Ruan, Yunjie Wang, Shunyi Zhao, Xiaoyue Song, Luyong Zhang, Jia Li, Tao Pang
Oxidative stress is a great challenge to neurons following cerebral ischemia. PGC-1α has been shown to act as a potent modulator of oxidative metabolism. In this study, the effects of ZLN005, a small molecule that activate PGC-1α, against oxygen-glucose deprivation (OGD)- or ischemia-induced neuronal injury in vitro and in vivo were investigated. Transient middle cerebral artery occlusion (tMCAO) was performed in rats and ZLN005 was administered intravenously at 2 h, 4 h, or 6 h after ischemia onset. Infarct volume and neurological deficit score were detected to evaluate the neuroprotective effects of ZLN005...
November 20, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/29157293/effect-of-memantine-on-post-operative-cognitive-dysfunction-after-cardiac-surgeries-a-randomized-clinical-trial
#15
Saba Ghaffary, Padideh Ghaeli, Azita Hajhossein Talasaz, Abbasali Karimi, Maryam Noroozian, Abbas Salehiomran, Arash Jalali
BACKGROUND: Post-operative cognitive dysfunction (POCD) is an important complication of cardiac surgeries. Glutamate plays a critical role in physiologic and pathologic conditions in the brain. Due to the role of glutamate in ischemia, this study is designed to identify the effect of memantine in prevention of POCD early and late after cardiac surgeries. METHODS: In this randomized clinical trial, 172 patients with ages 45-75 years old who underwent elective cardiac surgery were enrolled...
November 21, 2017: Daru: Journal of Faculty of Pharmacy, Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/29156826/protective-effect-of-ginkgo-biloba-leaves-extract-egb761-on-myocardium-injury-in-ischemia-reperfusion-rats-via-regulation-of-tlr-4-nf-%C3%AE%C2%BAb-signaling-pathway
#16
Yuping Tang, Guisheng Zhou, Lijun Yao, Ping Xue, Danhong Yu, Renjie Xu, Wen Shi, Xin Yao, Zhaowei Yan, Jin-Ao Duan
Beneficial actions of EGb 761 against ischemia/reperfusion (I/R) injury in lung, brain and renal ischemia have been described. However, the relationship between EGb 761 and signal molecules in myocardial ischemia reperfusion has not been well elucidated. In this study, we investigated the effects and mechanism of EGb 761 preconditioning on anti-myocardial I/R injuries in vivo. Meanwhile, their potential anti-oxidative stress and anti-inflammation effect were assessed. Hemodynamic parameters were monitored as left ventricular systolic pressure, LV end-diastolic pressure and maximal rate of increase and decrease of left ventricular pressure (dP/dtmax)...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156799/asiatic-acid-protects-against-hepatic-ischemia-reperfusion-injury-by-inactivation-of-kupffer-cells-via-ppar%C3%AE-nlrp3-inflammasome-signaling-pathway
#17
Ying Xu, Jun Yao, Chen Zou, Heng Zhang, Shouliang Zhang, Jun Liu, Gui Ma, Pengcheng Jiang, Wenbo Zhang
Hepatic ischemia/reperfusion (I/R) contributes to major complications in clinical practice affecting perioperative morbidity and mortality. Recent evidence suggests the key role of nucleotide-binding oligomerization domain-like receptor (NLR) family pyrin domain-containing 3 (NLRP3) inflammaosme activation on the pathogenesis of I/R injury. Asiatic acid (AA) is a pentacyclic triterpene derivative presented with versatile activities, including antioxidant, anti-inflammation and hepatoprotective effects. This study was designed to determine whether AA had potential hepatoprotective benefits against hepatic I/R injury, as well as to unveil the underlying mechanisms involved in the putative effects...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29155898/protective-effect-of-malva-sylvestris-l-extract-in-ischemia-reperfusion-induced-acute-kidney-and-remote-liver-injury
#18
Houshang Najafi, Zeynab Mohamadi Yarijani, Saeed Changizi-Ashtiyani, Kamran Mansouri, Masoud Modarresi, Seyed Hamid Madani, Bahar Bastani
Mallow (Malva sylvestris L.) has had medicinal and therapeutic uses in addition to its oral consumption. The present study was conducted to examine the protective effect of Malva sylvestris L. extract on ischemia-reperfusion-induced kidney injury and remote organ injuries in the liver. Before ischemia-reperfusion, rats in the different groups received intraperitoneal normal saline or mallow extract at the doses of 200, 400 or 600 mg/kg of body weight. After 30-minutes of bilateral renal ischemia followed by 24-hours of reperfusion, tissue damage in the kidney and liver samples were determined through studying H&E-stained slides under a light microscope...
2017: PloS One
https://www.readbyqxmd.com/read/29155261/the-phosphodiesterase-4-inhibitor-fcpr16-attenuates-ischemia-reperfusion-injury-in-rats-subjected-to-middle-cerebral-artery-occlusion-and-reperfusion
#19
Jiajia Chen, Hui Yu, Jiahong Zhong, Hongfang Feng, Haitao Wang, Yufang Cheng, Zhengqiang Zou, Chang Huang, Zhongzhen Zhou, Wenhua Zheng, Jiangping Xu
Current phosphodiesterase-4 (PDE4) inhibitors exert beneficial effects in central nervous system diseases via anti-inflammatory and anti-apoptotic properties, but many of them are plagued by side effects like nausea and emesis. FCPR16, a novel PDE4 inhibitor synthesized in our lab, has potential anti-inflammatory property. In the present study, we aimed to investigate the effects of FCPR16 in a rat model of ischemic stroke and evaluate its emetogenic potential. Our results showed that FCPR16 treatment improved neurological function, reduced cerebral infarct volume, and attenuated brain histological changes in rats subjected to middle cerebral artery occlusion and reperfusion (MCAO/R)...
November 16, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/29155206/inhibition-of-connexin-43-translocation-on-mitochondria-accelerates-cocl2-induced-apoptotic-response-in-a-chemical-model-of-hypoxia
#20
Michela Pecoraro, Aldo Pinto, Ada Popolo
Hypoxia is the basis of many myocardial conditions, and it can initiate cell death programs, among which apoptosis is well-known. Connexin 43 (Cx43), the major component of cardiomyocyte Gap Junctions, is important in cardioprotection. Cx43is involved in ischemia/reperfusion injury and ischemic preconditioning's protection in vitro; however, its role on cardiomyocyte under hypoxia is still unclear. Reports have shown that Cx43 is also located at the inner membrane of mitochondria where it has been implicated in enhanced ischemic preconditioning response...
November 16, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
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