Read by QxMD icon Read

carotid ligation mouse model

Rosalba Siracusa, Daniela Impellizzeri, Marika Cordaro, Rosalia Crupi, Emanuela Esposito, Stefania Petrosino, Salvatore Cuzzocrea
Vascular dementia (VaD), the second most common cause of cognitive impairment in the population, is a disease that results from reduction in regional cerebral blood flow and involves oxidative stress and inflammation. Co-ultramicronized PEALut (co-ultra PEALut) is a new compound with beneficial effects, which include anti-inflammatory and antioxidant properties. Recently, co-ultraPEALut has been shown to exhibit neuroprotective effects in models of Parkinson's disease, cerebral ischemia and Alzheimer's disease...
2017: Frontiers in Neurology
Paula Reventun, Matilde Alique, Irene Cuadrado, Susana Márquez, Rocío Toro, Carlos Zaragoza, Marta Saura
OBJECTIVE: ILK (integrin-linked kinase) plays a key role in controlling vasomotor tone and is decreased in atherosclerosis. The objective of this study is to test whether nitric oxide (NO) regulates ILK in vascular remodeling. APPROACH AND RESULTS: We found a striking correlation between increased levels of inducible nitric oxide and decreased ILK levels in human atherosclerosis and in a mouse model of vascular remodeling (carotid artery ligation) comparing with iNOS (inducible NO synthase) knockout mice...
July 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
Sarah Hulin-Curtis, Helen Williams, Kerry S Wadey, Graciela B Sala-Newby, Sarah J George
Approximately 50% of coronary artery bypass grafts using the autologous saphenous vein fail within 10 years due to intimal thickening. This study examined whether a gene therapy approach that selectively kills Wnt/β-catenin/T cell factor (TCF) activated vascular smooth muscle cells (VSMCs) using dominant-negative N-cadherin (dn-N-cadherin) reduced intimal thickening. Cultured human VSMCs infected with an adenovirus (Ad) encoding dn-N-cadherin via the TCF promoter (Ad-TOP-dn-N-cadherin) specifically expressed dn-N-cadherin in response to activation of the Wnt/β-catenin/TCF pathway...
June 16, 2017: Molecular Therapy. Methods & Clinical Development
Florent Allagnat, Céline Dubuis, Martine Lambelet, Loïc Le Gal, Florian Alonso, Jean-Marc Corpataux, Sébastien Déglise, Jacques-Antoine Haefliger
Aims: Intimal hyperplasia (IH) is an abnormal response to vessel injury characterized by the dedifferentiation, migration, and proliferation of quiescent vascular smooth muscle cells (VSMC) to form a neointima layer. Vascular connexins (Cx) are involved in the pathophysiology of various vascular diseases, and Cx43, the main Cx expressed in VSMC, has been shown to promote VSMC proliferation and IH. The aim of this study was to investigate the participation of another Cx, namely Cx37, in the formation of the neointima layer...
June 1, 2017: Cardiovascular Research
Shuai He, Wei Zhong, Li Yin, Yifei Wang, Zhibing Qiu, Gang Song
Vascular remodeling is the primary cause underlying the failure of angioplasty surgeries, including vascular stenting, transplant vasculopathy and vein grafts. Multiple restenosis‑associated proteins and genes have been identified to account for this. In the present study, the functions of ubiquitin‑specific peptidase 39 (USP39) were investigated in the context of two vascular remodeling models (a mouse common carotid artery ligation and a pig bilateral saphenous vein‑carotid artery interposition graft)...
May 2017: Molecular Medicine Reports
Nahla Zaghloul, Hardik Patel, Mohamed Nagy Ahmed
Periventricular leukomalacia (PVL), a brain injury affecting premature infants is commonly associated with cerebral palsy. PVL results from hypoxia-ischemia (HI) with or without infection and is characterized by white matter necrotic lesions, hypomyelination, microglial activation, astrogliosis, and neuronal death. It is important to study a PVL mouse model that mimics human PVL in symptomatology, anatomic and molecular basis. In our neonate mice model, bilateral carotid arteries were temporary ligated at P5 followed by hypoxic exposure (FiO2 of 8% for 20 min...
2017: PloS One
Markus Vaas, Ruiqing Ni, Markus Rudin, Anja Kipar, Jan Klohs
Middle cerebral artery occlusion is the most common model of focal cerebral ischemia in the mouse. In the surgical procedure, the external carotid artery (ECA) is ligated; however, its effect on the tissue supplied by the vessel has not been described so far. C57BL/6 mice underwent 1 h of transient MCAO (tMCAO) or sham surgery. Multi-spectral optoacoustic tomography was employed at 30 min after surgery to assess oxygenation in the temporal muscles. Microstructural changes were assessed with magnetic resonance imaging and histological examination at 24 h and 48 h after surgery...
2017: Frontiers in Neurology
Jinjing Zhao, Wen Wu, Wei Zhang, Yao Wei Lu, Emiley Tou, Jiemei Ye, Ping Gao, David Jourd'heuil, Harold A Singer, Mingfu Wu, Xiaochun Long
Tetraspanins (TSPANs) comprise a large family of 4-transmembrane domain proteins. The importance of TSPANs in vascular smooth muscle cells (VSMCs) is unexplored. Given that TGF-β1 and myocardin (MYOCD) are potent activators for VSMC differentiation, we screened for TGF-β1 and MYOCD/serum response factor (SRF)-regulated TSPANs in VSMC by using RNA-seq analyses and RNA-arrays. TSPAN2 was found to be the only TSPAN family gene induced by TGF-β1 and MYOCD, and reduced by SRF deficiency in VSMCs. We also found that TSPAN2 is highly expressed in smooth muscle-enriched tissues and down-regulated in in vitro models of VSMC phenotypic modulation...
March 3, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
Elk Kossatz, Rafael Maldonado, Patricia Robledo
The role of CB2 cannabinoid receptors (CB2R) in global brain lesions induced by hypoxia-ischemia (HI) insult is still unresolved. The aim of this study was to evaluate the involvement of CB2R in the behavioural and biochemical underpinnings related to brain damage induced by HI in adult mice, and the mechanisms involved. CB2R knockout (KO) mice and wild-type littermates (WT) underwent permanent ligation of the left common carotid artery and hypoxia. Behavioural measurements in the rotarod, beam walking, object recognition, open field, and Irwin tests were carried out 24h, 72h and 7 days...
December 2016: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
Gillipsie Minhas, Sudesh Prabhakar, Ryuichi Morishita, Munehisa Shimamura, Reema Bansal, Akshay Anand
Retinal ischemia is a condition associated with retinal degenerative diseases such as glaucoma, diabetic retinopathy, and other optic neuropathies, leading to visual impairment and blindness worldwide. Currently, there is no therapy available for ischemic retinopathies. Therefore, the aim of this study was to test a murine model of pterygopalatine artery ligation-induced retinal injury for transplantation of mouse bone marrow-derived lineage-negative (lin-ve) stem cells. The mouse external carotid artery and pterygopalatine artery were ligated for 3...
May 2017: Molecular and Cellular Biochemistry
Tae-Ho Kim, Dong Gil Lee, Young-Ae Kim, Byung Ho Lee, Kyu Yang Yi, Yi-Sook Jung
Urotensin II (UII) is a mitogenic and hypertrophic agent that can induce the proliferation of vascular cells. UII inhibition has been considered as beneficial strategy for atherosclerosis and restenosis. However, currently there is no therapeutics clinically available for atherosclerosis or restenosis. In this study, we evaluated the effects of a newly synthesized UII receptor (UT) antagonist, KR- 36996, on the proliferation of SMCs in vitro and neointima formation in vivo in comparison with GSK-1440115, a known potent UT antagonist...
May 1, 2017: Biomolecules & Therapeutics
Hui Wang, William G Robichaux, Ziqing Wang, Fang C Mei, Ming Cai, Guangwei Du, Ju Chen, Xiaodong Cheng
Vascular smooth muscle cell (VSMC) activation in response to injury plays an important role in the development of vascular proliferative diseases, including restenosis and atherosclerosis. The aims of this study were to ascertain the physiological functions of exchange proteins directly activated by cAMP isoform 1 (Epac1) in VSMC and to evaluate the potential of Epac1 as therapeutic targets for neointima formation during vascular remodeling. In a mouse carotid artery ligation model, genetic knockdown of the Epac1 gene led to a significant reduction in neointima obstruction in response to vascular injury...
November 10, 2016: Scientific Reports
Young-Ae Kim, Dong Gil Lee, Kyu Yang Yi, Byung Ho Lee, Yi-Sook Jung
Urotensin II (UII) is a potent vasoactive peptide and mitogenic agent to induce proliferation of various cells including vascular smooth muscle cells (VSMCs). In this study, we examined the effects of a novel UII receptor (UT) antagonist, KR-36676, on vasoconstriction of aorta and proliferation of aortic SMCs. In rat aorta, UII-induced vasoconstriction was significantly inhibited by KR-36676 in a concentration-dependent manner. In primary human aortic SMCs (hAoSMCs), UII-induced cell proliferation was significantly inhibited by KR-36676 in a concentration-dependent manner...
September 1, 2016: Biomolecules & Therapeutics
Yuzhu Zhang, Qian Mu, Zheng Zhou, Haibo Song, Yuan Zhang, Fei Wu, Miao Jiang, Fang Wang, Wen Zhang, Liang Li, Lei Shao, Xingli Wang, Shiwu Li, Lijun Yang, Qi Wu, Mingxiang Zhang, Dongqi Tang
Irisin, a newly discovered myokine, is considered as a promising candidate for the treatment of metabolic disturbances and cardiovascular diseases. In the present study, we used two animal models, apolipoprotein E-deficient mice fed on a high-cholesterol diet and a mouse carotid partial ligation model to test the anti-atherosclerotic effect of irisin. Irisin treatment (0.5 μg/g body weight/day) significantly reduced the severity of aortic atherosclerosis in apolipoprotein E-deficient mice fed on a high-cholesterol diet and suppressed carotid neointima formation in a carotid partial ligation model...
2016: PloS One
Jihwa Chung, Hyunbo Shim, Kwanchang Kim, Duhwan Lee, Won Jong Kim, Dong Hoon Kang, Sang Won Kang, Hanjoong Jo, Kihwan Kwon
Atherosclerosis occurs preferentially in arterial regions exposed to disturbed blood flow. Targeting these pro-atherogenic regions is a potential anti-atherogenic therapeutic approach, but it has been extremely challenging. Here, using in vivo phage display approach and the partial carotid ligation model of flow-induced atherosclerosis in mouse, we identified novel peptides that specifically bind to endothelial cells (ECs) exposed to disturbed flow condition in pro-atherogenic regions. Two peptides, CLIRRTSIC and CPRRSHPIC, selectively bound to arterial ECs exposed to disturbed flow not only in the partially ligated carotids but also in the lesser curvature and branching point of the aortic arch in mice as well as human pulmonary artery branches...
May 12, 2016: Scientific Reports
F Allagnat, J-A Haefliger, M Lambelet, A Longchamp, X Bérard, L Mazzolai, J-M Corpataux, S Déglise
OBJECTIVE: To evaluate the impact of different types of hypertension on the development of intimal hyperplasia (IH). METHOD: Genetic, surgical, and pharmacological models of hypertension were used to compare IH formation in a murine model of carotid artery ligation (CAL). CAL was performed in normotensive WT male mice and in three mouse models of hypertension: (1) L-NAME (Nω-nitro-l-arginine-methyl-ester) treatment for 2 weeks prior to CAL to instate renin-independent hypertension; (2) 2K1C (two kidneys, one clip) surgery 1 week prior to CAL to induce renin-dependent hypertension; (3) Cx40-/- mice, a genetic model of renin-dependent hypertension...
May 2016: European Journal of Vascular and Endovascular Surgery
Tom Struys, Kristof Govaerts, Wouter Oosterlinck, Cindy Casteels, Annelies Bronckaers, Michel Koole, Koen Van Laere, Paul Herijgers, Ivo Lambrichts, Uwe Himmelreich, Tom Dresselaers
We have characterized both acute and long-term vascular and metabolic effects of unilateral common carotid artery occlusion in mice by in vivo magnetic resonance imaging and positron emission tomography. This common carotid artery occlusion model induces chronic cerebral hypoperfusion and is therefore relevant to both preclinical stroke studies, where it serves as a control condition for a commonly used mouse model of ischemic stroke, and neurodegeneration, as chronic hypoperfusion is causative to cognitive decline...
February 2017: Journal of Cerebral Blood Flow and Metabolism
Rayana Leal Luna, Vanessa R Kay, Matthew T Rätsep, Kasra Khalaj, Mallikarjun Bidarimath, Nichole Peterson, Peter Carmeliet, Albert Jin, B Anne Croy
STUDY HYPOTHESIS: Placental growth factor (PGF) is expressed in the developing mouse brain and contributes to vascularization and vessel patterning. STUDY FINDING: PGF is dynamically expressed in fetal mouse brain, particularly forebrain, and is essential for normal cerebrovascular development. WHAT IS KNOWN ALREADY: PGF rises in maternal plasma over normal human and mouse pregnancy but is low in many women with the acute onset hypertensive syndrome, pre-eclampsia (PE)...
February 2016: Molecular Human Reproduction
Shahid Iqbal, Muhammad Ali, Furhan Iqbal
IL-6 has been reported to have neuroprotective effects against cerebral ischemia while IL-8 is a pro inflammatory cytokine structurally related to interleukin-1 family. In the present study, we tried to determine whether 2% Creatine monohydrate supplementation for variable duration influence the IL-6 and 18 concentrations in the serum of male albino mouse following right common carotid artery ligation and hypoxia (8% oxygen) for 25 minutes. Our result revealed that serum concentration of IL6 (P=0.0001) as well as IL-18 (P=0...
November 2015: Pakistan Journal of Pharmaceutical Sciences
Margaret A Hamner, Zucheng Ye, Richard V Lee, Jamie R Colman, Thu Le, Davin C Gong, Bruce R Ransom, Jonathan R Weinstein
UNLABELLED: Ischemic preconditioning (IPC) is a robust neuroprotective phenomenon whereby brief ischemic exposure confers tolerance to a subsequent ischemic challenge. IPC has not been studied selectively in CNS white matter (WM), although stroke frequently involves WM. We determined whether IPC is present in WM and, if so, its mechanism. We delivered a brief in vivo preconditioning ischemic insult (unilateral common carotid artery ligation) to 12- to 14-week-old mice and determined WM ischemic vulnerability [oxygen-glucose deprivation (OGD)] 72 h later, using acutely isolated optic nerves (CNS WM tracts) from the preconditioned (ipsilateral) and control (contralateral) hemispheres...
November 25, 2015: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"