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Ischemia angiogenesis

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https://www.readbyqxmd.com/read/29123467/the-role-of-sdf-1-cxcr4-cxcr7-in-neuronal-regeneration-after-cerebral-ischemia
#1
REVIEW
Xi Cheng, Huibin Wang, Xiuchun Zhang, Shanshan Zhao, Zhike Zhou, Xiaopeng Mu, Chuansheng Zhao, Weiyu Teng
Stromal cell-derived factor-1 is a chemoattractant produced by bone marrow stromal cell lines. It is recognized as a critical factor in the immune and central nervous systems (CNSs) as well as exerting a role in cancer. SDF-1 activates two G protein-coupled receptors, CXCR4 and CXCR7; these are expressed in both developing and mature CNSs and participate in multiple physiological and pathological events, e.g., inflammatory response, neurogenesis, angiogenesis, hematopoiesis, cancer metastasis, and HIV infection...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29122516/placenta-derived-plx-pad-mesenchymal-like-stromal-cells-are-efficacious-in-rescuing-blood-flow-in-hind-limb-ischemia-mouse-model-by-a-dose-and-site-dependent-mechanism-of-action
#2
Efrat Zahavi-Goldstein, Michal Blumenfeld, Dana Fuchs-Telem, Lena Pinzur, Shy Rubin, Zami Aberman, Noa Sher, Racheli Ofir
BACKGROUND: In peripheral artery disease (PAD), blockage of the blood supply to the limbs, most frequently the legs, leads to impaired blood flow and tissue ischemia. Pluristem's PLX-PAD cells are placenta-derived mesenchymal stromal-like cells currently in clinical trials for the treatment of peripheral artery diseases. METHODS: In this work, the hind limb ischemia (HLI) mouse model was utilized to study the efficacy and mechanism of action of PLX-PAD cells. ELISA assays were performed to characterize and quantitate PLX-PAD secretions in vitro...
November 6, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29112164/effect-of-intranasally-delivered-rh-vegf165-on-angiogenesis-following-cerebral-hypoxia-ischemia-in-the-cerebral-cortex-of-newborn-piglets
#3
Amit Jain, Panagiotis Kratimenos, Ioannis Koutroulis, Amishi Jain, Amulya Buddhavarapu, Jahan Ara
BACKGROUND: Vascular endothelial growth factor (VEGF) stimulates vascular genesis and angiogenesis. Cerebral Hypoxia-Ischemia (HI) leads to the reduction of vasculature in the cerebral cortex of newborn piglets. OBJECTIVE: The present study tests the hypothesis that post-hypoxia intranasal administration of recombinant human VEGF165 (rh-VEGF165) for 3 days increases the vascular density in the cerebral cortex of newborn piglets without promoting neovascularization...
November 7, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29109784/multimodal-assessment-of-mesenchymal-stem-cell-therapy-for-diabetic-vascular-complications
#4
Jamila Hedhli, Christian J Konopka, Sarah Schuh, Hannah Bouvin, John A Cole, Heather D Huntsman, Kristopher A Kilian, Iwona T Dobrucki, Marni D Boppart, Lawrence W Dobrucki
Peripheral arterial disease (PAD) is a debilitating complication of diabetes mellitus (DM) that leads to thousands of injuries, amputations, and deaths each year. The use of mesenchymal stem cells (MSCs) as a regenerative therapy holds the promise of regrowing injured vasculature, helping DM patients live healthier and longer lives. We report the use of muscle-derived MSCs to treat surgically-induced hindlimb ischemia in a mouse model of type 1 diabetes (DM-1). We serially evaluate several facets of the recovery process, including αVβ3 -integrin expression (a marker of angiogenesis), blood perfusion, and muscle function...
2017: Theranostics
https://www.readbyqxmd.com/read/29105392/mouse-bone-marrow-derived-mast-cells-induce-angiogenesis-by-tissue-engineering-in-rats-histological-evidence
#5
Ali Karimi, Rasoul Shahrooz, Rahim Hobbenaghi, Rahim Mohammadi, Esmaeil Mortaz
OBJECTIVES: Therapeutic angiogenesis is employed to induce vascular network formation and improve functional recovery in ischemia. The aim of this study is to find an appropriate method to recover local ischemic conditions. MATERIALS AND METHODS: In this experimental survey, 20 male Wistar rats weighing approximately 200-250 g were randomly divided into four experimental groups respectively: ischemia group in which the femoral artery was transected; phosphate buffer solution group (PBS) in which the femoral artery transected location was immersed with PBS; chitosan (CHIT) group in which the transected location was immersed in a 50 μL CHIT solution; and mast cell transplanted group in which the transected location was immersed with a mixture of 50 μL CHIT and 50 μL PBS that contained 1×10(6) mast cells...
January 2018: Cell Journal
https://www.readbyqxmd.com/read/29103459/protective-effect-of-shouwu-yizhi-decoction-against-vascular-dementia-by-promoting-angiogenesis
#6
Xiao-Ni Yang, Chang-Sheng Li, Chao Chen, Xiao-Yong Tang, Guang-Qing Cheng, Xia Li
Shouwu is a traditional Chinese medicine (TCM) with neuroprotective effect. Shouwu Yizhi decoction (SYD) was designed based on TCM theory. However, little is known about the roles of SYD in Vascular dementia (VaD). The present study aimed to evaluate the potential effects of SYD on the vascular cognitive impairment and explore the underlying mechanism by establishing focal cerebral ischemia/reperfusion (I/R) rat model to induce VaD. SYD administration (54 mg·kg(-1)) for 40 days obviously improved the vascular cognitive impairment in the middle cerebral artery occlusion (MCAO) rats as evidenced by the declined neurological deficit score and shortened escape latency via neurological deficit assessment and Morris water maze test...
October 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/29074590/deletion-of-at2-receptor-prevents-shp-1-induced-vegf-inhibition-and-improves-blood-flow-reperfusion-in-diabetic-ischemic-hindlimb
#7
Judith Paquin-Veillette, Farah Lizotte, Stéphanie Robillard, Raphaël Béland, Marc-André Breton, Andréanne Guay, Marc-Antoine Despatis, Pedro Geraldes
OBJECTIVE: Ischemia caused by narrowing of femoral artery is a major cause of peripheral arterial disease and morbidity affecting patients with diabetes mellitus. We have previously reported that the inhibition of the angiogenic response to VEGF (vascular endothelial growth factor) in diabetic mice was associated with the increased expression of SHP-1 (SH2 domain-containing phosphatase 1), a protein that can be activated by the AT2 (angiotensin II type 2) receptor. Deletion of AT2 receptor has been shown to promote angiogenesis within the ischemic muscle...
October 26, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29065965/identification-of-specifically-activated-angiogenic-molecules-in-hmgb-1-induced-angiogenesis
#8
Won Kyu Kim, Yujin Kwon, Minhee Park, Seongju Yun, Ja-Young Kwon, Hoguen Kim
High-mobility group box-1 (HMGB-1) is expressed in almost all cells, and its dysregulated expression correlates with inflammatory diseases, ischemia, and cancer. Some of these conditions accompany HMGB-1-mediated abnormal angiogenesis. Thus far, the mechanism of HMGB-1-induced angiogenesis remains largely unknown. In this study, we performed time-dependent DNA microarray analysis of endothelial cells (ECs) after HMGB-1 or VEGF treatment. The pathway analysis of each gene set upregulated by HMGB-1 or VEGF showed that most HMGB-1-induced angiogenic pathways were also activated by VEGF, although the activation time and gene sets belonging to the pathways differed...
October 25, 2017: BMB Reports
https://www.readbyqxmd.com/read/29061393/repulsive-guidance-molecule-a-suppresses-angiogenesis-after-ischemia-reperfusion-injury-of-middle-cerebral-artery-occlusion-in-rats
#9
Yu Wang, Rongrong Zhang, Xiangfeng Xing, Jia Guo, Fei Xie, Gang Zhang, Xinyue Qin
Repulsive guidance molecule a (RGMa) has now emerged as a molecule with pleiotropic roles, including repulsion, adhesion, migration and differentiation in the nervous system. In this study, adult male Sprague-Dawley (SD) rats received 90-min middle cerebral artery occlusion (MCAO) to observe RGMa/neogenin expression sites after ischemia/reperfusion injury and changes in angiogenesis after treatment with RNA interference using RGMa-specific recombinant adenovirus rAd5-shRNA-RGMa (rAd-shRGMa). To clarify how RGMa mediates angiogenesis, the RGMa function-blocking peptide six fibronectin type III (6FNIII) was also administered, and corresponding changes in vascular endothelial growth factor (VEGF), angiopoietin-2 (Ang2), angiopoietin-1 (Ang1), and brain derived neurotrophic factor (BDNF) were determined by western blotting...
October 20, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/29057537/cpg-oligodeoxynucleotide-preconditioning-improves-cardiac-function-after-myocardial-infarction-via-modulation-of-energy-metabolism-and-angiogenesis
#10
Deng-Cheng Zhou, Yong-Hui Su, Fu-Qing Jiang, Jing-Bo Xia, Hai-Yan Wu, Zao-Shang Chang, Wen-Tao Peng, Guo-Hua Song, Kyu-Sang Park, Soo-Ki Kim, Dong-Qing Cai, Li Zheng, Xu-Feng Qi
Unmethylated CpG oligodeoxynucleotide (CpG-ODN), a Toll-like receptor 9 (TLR9) ligand, has been shown to protect against myocardial ischemia/reperfusion injury. However, the potential effects of CpG-ODN on myocardial infarction (MI) induced by persistent ischemia remains unclear. Here, we investigated whether and how CpG-ODN preconditioning protects against MI in mice. C57BL/6 mice were treated with CpG-ODN by i.p. injection 2 hours prior to MI induction, and cardiac function and histology were analyzed two weeks after MI...
October 23, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29055125/vascular-endothelial-growth-factor-vegf-related-single-nucleotide-polymorphisms-rs10738760-and-rs6921438-are-not-associated-with-diabetic-retinopathy-dr-in-slovenian-patients-with-type-2-diabetes-mellitus-t2dm
#11
Rifet Terzić, Ines Cilenšek, Ruda Zorc Pleskovič, Sara Mankoč, Aleksandra Milutinović
Diabetic retinopathy (DR) is a complication of diabetes characterized by vascular permeability, increased tissue ischemia, and angiogenesis. One of the most important proteins involved in angiogenesis is vascular endothelial growth factor (VEGF, also known as VEGFA). A previous study demonstrated that two single nucleotide polymorphisms (SNPs), rs6921438 and rs10738760, account for nearly half the variation in circulating VEGF levels. The aim of our study was to assess the association between rs6921438 and rs10738760 and DR in Slovenian patients with type 2 diabetes mellitus (T2DM)...
October 20, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29046106/expression-of-von-willebrand-factor-and-caldesmon-in-the-placental-tissues-of-pregnancies-complicated-with-intrauterine-growth-restriction
#12
Hale Göksever Çelİk, Mehmet Uhrİ, Gökhan Yildirim
PURPOSE: The decreased placental perfusion is the underlying reason for intrauterine growth restriction that in turn leads to reduced placental perfusion and ischemia. However, there are several issues to be understood in the pathophysiology of intrauterine growth restriction. We aimed to study whether any compensatory response in placental vascular bed occur in pregnancies complicated with intrauterine growth restriction by the immunohistochemical staining of von Willebrand factor and caldesmon in placental tissues...
October 18, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29044182/long-term-intake-of-pasta-containing-barley-1-3-beta-d-glucan-increases-neovascularization-mediated-cardioprotection-through-endothelial-upregulation-of-vascular-endothelial-growth-factor-and-parkin
#13
Valentina Casieri, Marco Matteucci, Claudia Cavallini, Milena Torti, Michele Torelli, Vincenzo Lionetti
Barley (1-3)β-D-Glucan (BBG) enhances angiogenesis. Since pasta is very effective in providing a BBG-enriched diet, we hypothesized that the intake of pasta containing 3% BBG (P-BBG) induces neovascularization-mediated cardioprotection. Healthy adult male C57BL/6 mice fed P-BBG (n = 15) or wheat pasta (Control, n = 15) for five-weeks showed normal glucose tolerance and cardiac function. With a food intake similar to the Control, P-BBG mice showed a 109% survival rate (P < 0.01 vs. Control) after cardiac ischemia (30 min)/reperfusion (60 min) injury...
October 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29038476/pro-angiogenic-effect-of-rantes-loaded-polysaccharide-based-microparticles-for-a-mouse-ischemia-therapy
#14
N Suffee, C Le Visage, H Hlawaty, R Aid-Launais, V Vanneaux, J Larghero, O Haddad, O Oudar, N Charnaux, A Sutton
Peripheral arterial disease results from the chronic obstruction of arteries leading to critical hindlimb ischemia. The aim was to develop a new therapeutic strategy of revascularization by using biodegradable and biocompatible polysaccharides-based microparticles (MP) to treat the mouse hindlimb ischemia. For this purpose, we deliver the pro-angiogenic chemokine Regulated upon Activation, Normal T-cell Expressed and Secreted (RANTES)/CCL5 in the mouse ischemic hindlimb, in solution or incorporated into polysaccharide-based microparticles...
October 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29030124/targeting-nitric-oxide-and-nmda-receptor-associated-pathways-in-treatment-of-high-grade-glial-tumors-hypotheses-for-nitro-memantine-and-nitrones
#15
REVIEW
Meric A Altinoz, İlhan Elmaci
Glioblastoma multiforme (GBM) is a devastating brain cancer with no curative treatment. Targeting Nitric Oxide (NO) and glutamatergic pathways may help as adjunctive treatments in GBM. NO at low doses promotes tumorigenesis, while at higher levels (above 300 nM) triggers apoptosis. Gliomas actively secrete high amounts of glutamate which activates EGR signaling and mediates degradation of peritumoral tissues via excitotoxic injury. Memantine inhibits NMDA-subtype of glutamate receptors (NMDARs) and induces autophagic death of glioma cells in vitro and blocks glioma growth in vivo...
October 10, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/29025278/angiogenic-growth-factors-for-coronary-artery-disease-current-status-and-prospects
#16
Ming Guo, Jun-He Shi, Pei-Li Wang, Da-Zhuo Shi
Although there have been advances in coronary artery bypass grafting and percutaneous coronary intervention, patients who have ischemic coronary artery disease (CAD) are ineligible for revascularization due to suboptimal anatomy. Cardiac angiogenesis is not only a physiological response to ischemia or hypoxia but also a potential target of therapeutic strategies. For some time now, preclinical studies show a great enthusiasm on therapeutic angiogenesis for ischemic CAD. However, the latest trials provided the limited evidence on its efficacy...
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28986333/protective-effect-of-danhong-injection-combined-with-naoxintong-capsule-on-cerebral-ischemia-reperfusion-injury-in-rats
#17
Jiayang Wan, Haofang Wan, Rongbin Yang, Haitong Wan, Jiehong Yang, Yu He, Huifen Zhou
ETHNOPHARMACOLOGICAL RELEVANCE: Danhong Injection (DHI) and Naoxintong Capsule (NXT) are renowned traditional Chinese medicine in China. The drug combination of DHI and NXT is frequently applied for the treatment of cardiovascular and cerebrovascular diseases in clinic. However, there had been no pharmacological experiment studies of interaction between DHI and NXT. Due to the drug interactions, exploring their interaction profile is of great importance. MATERIAL AND METHODS: In this study, focal cerebral I/R injury in adult male Sprague-Dawley rats were induced by transient middle cerebral artery occlusion (tMCAO) for 1h followed by reperfusion...
October 3, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28980146/egfl7-represses-the-vasculogenic-potential-of-human-endothelial-progenitor-cells
#18
Clément d'Audigier, Sophie Susen, Adeline Blandinieres, Virginie Mattot, Bruno Saubamea, Elisa Rossi, Nathalie Nevo, Séverine Lecourt, Coralie L Guerin, Blandine Dizier, Nicolas Gendron, Bertrand Caetano, Pascale Gaussem, Fabrice Soncin, David M Smadja
Egfl7 (VE-statin) is a secreted protein mostly specific to the endothelial lineage during development and in the adult and which expression is enhanced during angiogenesis. Egfl7 involvement in human postnatal vasculogenesis remains unresolved yet. Our aim was to assess Egfl7 expression in several angiogenic cell types originating from human bone marrow, peripheral blood, or cord blood. We found that only endothelial colony forming cells (ECFC), which are currently considered as the genuine endothelial precursor cells, expressed large amounts of Egfl7...
October 4, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28979692/therapeutic-ultrasound-plus-pulsed-electromagnetic-field-improves-recovery-from-peripheral-arterial-disease-in-hypertension
#19
Zhao-Yang Lu, Hong-Sheng Zhou, Zhi-Xiao Su, Jia Qi, Jian Zhang, Guan-Hua Xue, Yue Li, Chang-Ning Hao, Yi-Qin Shi, Jun-Li Duan
The objective of this investigation was to evaluate the therapy effect of combined therapeutic ultrasound (TUS) treatment and pulsed electromagnetic field (PEMF) therapy on angiogenesis in hypertension-related hindlimb ischemia. After subjecting excision of the left femoral artery, spontaneously hypertensive rats (SHRs) were randomly distributed to one of four groups: SHR; TUS treated SHR (SHR-TUS); PEMF treated SHR (PEMF-TUS); and TUS plus PEMF treated SHR (SHR-TUS-PEMF). Wistar-Kyoto rats (WKYs) with femoral artery excision were regarded as a control group...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28979690/multifaceted-effects-of-astragaloside-iv-on-promotion-of-random-pattern-skin-flap-survival-in-rats
#20
Renjin Lin, Huanwen Chen, Daniel Callow, Shihen Li, Lei Wang, Shi Li, Long Chen, Jian Ding, Weiyang Gao, Huazi Xu, Jianzhong Kong, Kailiang Zhou
Random pattern skin flap transplantation is frequently applied in plastic and reconstructive surgery, but the distal part of skin flaps often suffers necrosis due to ischemia. Astragaloside IV (AS-IV), a natural saponin purified from Astragalus membranaceus, may have beneficial functions for flap survival. In this study, rats were divided into a control group and an AS-IV treatment group, and underwent surgery using a modified "McFarlane flap" model. After intragastric administration of vehicle control or AS-IV for their respective groups, flap survival area and water content were measured 7 days after surgery...
2017: American Journal of Translational Research
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