Effect of intramuscular baculovirus encoding mutant hypoxia-inducible factor 1-alpha on neovasculogenesis and ischemic muscle protection in rabbits with peripheral arterial disease

Cytotherapy ◽  
2020 ◽  
Vol 22 (10) ◽  
pp. 563-572
Author(s):  
Carlos S. Giménez ◽  
Martha G. Castillo ◽  
Jorge A. Simonin ◽  
Cristian N. Núñez Pedrozo ◽  
Natalia Pascuali ◽  
...  
2021 ◽  
Vol 37 ◽  
Author(s):  
Cihan Yücel ◽  
Mete Gürsoy ◽  
Serkan Ketenciler ◽  
Aslıhan Tenekeciğil ◽  
Feryaz Kızıltan ◽  
...  

2021 ◽  
Vol 23 (1) ◽  
pp. 271
Author(s):  
Tao Wang ◽  
Liang Yang ◽  
Mingjie Yuan ◽  
Charles R. Farber ◽  
Rosanne Spolski ◽  
...  

The interleukin-21 receptor (IL-21R) can be upregulated in endothelial cells (EC) from ischemic muscles in mice following hind-limb ischemia (HLI), an experimental peripheral arterial disease (PAD) model, blocking this ligand–receptor pathway-impaired STAT3 activation, angiogenesis, and perfusion recovery. We sought to identify mRNA and microRNA transcripts that were differentially regulated following HLI, based on the ischemic muscle having intact, or reduced, IL-21/IL21R signaling. In this comparison, 200 mRNAs were differentially expressed but only six microRNA (miR)/miR clusters (and among these only miR-30b) were upregulated in EC isolated from ischemic muscle. Next, myoglobin-overexpressing transgenic (MgTG) C57BL/6 mice examined following HLI and IL-21 overexpression displayed greater angiogenesis, better perfusion recovery, and less tissue necrosis, with increased miR-30b expression. In EC cultured under hypoxia serum starvation, knock-down of miR-30b reduced, while overexpression of miR-30b increased IL-21-mediated EC survival and angiogenesis. In Il21r−/− mice following HLI, miR-30b overexpression vs. control improved perfusion recovery, with a reduction of suppressor of cytokine signaling 3, a miR-30b target and negative regulator of STAT3. Together, miR-30b appears both necessary and sufficient for IL21/IL-21R-mediated angiogenesis and may present a new therapeutic option to treat PAD if the IL21R is not available for activation.


2006 ◽  
Vol 39 (3) ◽  
pp. 44
Author(s):  
WILLIAM E. GOLDEN ◽  
ROBERT H. HOPKINS

VASA ◽  
2016 ◽  
Vol 45 (5) ◽  
pp. 417-422 ◽  
Author(s):  
Anouk Grandjean ◽  
Katia Iglesias ◽  
Céline Dubuis ◽  
Sébastien Déglise ◽  
Jean-Marc Corpataux ◽  
...  

Abstract. Background: Multilevel peripheral arterial disease is frequently observed in patients with intermittent claudication or critical limb ischemia. This report evaluates the efficacy of one-stage hybrid revascularization in patients with multilevel arterial peripheral disease. Patients and methods: A retrospective analysis of a prospective database included all consecutive patients treated by a hybrid approach for a multilevel arterial peripheral disease. The primary outcome was the patency rate at 6 months and 1 year. Secondary outcomes were early and midterm complication rate, limb salvage and mortality rate. Statistical analysis, including a Kaplan-Meier estimate and univariate and multivariate Cox regression analyses were carried out with the primary, primary assisted and secondary patency, comparing the impact of various risk factors in pre- and post-operative treatments. Results: 64 patients were included in the study, with a mean follow-up time of 428 days (range: 4 − 1140). The technical success rate was 100 %. The primary, primary assisted and secondary patency rates at 1 year were 39 %, 66 % and 81 %, respectively. The limb-salvage rate was 94 %. The early mortality rate was 3.1 %. Early and midterm complication rates were 15.4 % and 6.4 %, respectively. The early mortality rate was 3.1 %. Conclusions: The hybrid approach is a major alternative in the treatment of peripheral arterial disease in multilevel disease and comorbid patients, with low complication and mortality rates and a high limb-salvage rate.


VASA ◽  
2015 ◽  
Vol 44 (5) ◽  
pp. 341-348 ◽  
Author(s):  
Marc Husmann ◽  
Vincenzo Jacomella ◽  
Christoph Thalhammer ◽  
Beatrice R. Amann-Vesti

Abstract. Increased arterial stiffness results from reduced elasticity of the arterial wall and is an independent predictor for cardiovascular risk. The gold standard for assessment of arterial stiffness is the carotid-femoral pulse wave velocity. Other parameters such as central aortic pulse pressure and aortic augmentation index are indirect, surrogate markers of arterial stiffness, but provide additional information on the characteristics of wave reflection. Peripheral arterial disease (PAD) is characterised by its association with systolic hypertension, increased arterial stiffness, disturbed wave reflexion and prognosis depending on ankle-brachial pressure index. This review summarises the physiology of pulse wave propagation and reflection and its changes due to aging and atherosclerosis. We discuss different non-invasive assessment techniques and highlight the importance of the understanding of arterial pulse wave analysis for each vascular specialist and primary care physician alike in the context of PAD.


VASA ◽  
2010 ◽  
Vol 39 (2) ◽  
pp. 145-152 ◽  
Author(s):  
Klein-Weigel ◽  
Gutsche-Petrak ◽  
Wolbergs ◽  
Köning ◽  
Flessenkamper

Background: We compared medical secondary prevention in patients with peripheral arterial disease stage II (Fontaine) located in the femoro-popliteal artery managed by vascular surgeons and medical doctors / angiologists in our multidisciplinary vascular center. Patients and methods: We retrospectively analyzed demission protocols of in-hospital treatments between 01.01.2007 and 20.06.2008. Results: We surveyed 264 patients (54.2 % women; mean age 67.52 ± 8.98 yrs), 179 (67.8 %) primarily treated by medical doctors / angiologists and 85 (32.2 %) primarily managed by vascular surgeons. Medical doctors / angiologists treated more women (n = 109) than men (n = 34), (p = 0.002) and documented smoking and diabetes mellitus more often (p < 0.001) than vascular surgeons. Besides, patients had similar cardiovascular risk profiles and concomitant diseases, vascular surgeons prescribed 5.47 ± 2.26 drugs, medical doctors / angiologists 6.37 ± 2.67 (p = 0.005). Overall, 239 (90.5 %) patients were on aspirin, 180 (68.2 %) on clopidogrel, and 18 (6.9 %) on oral anticoagulants. Significantly more patients treated by medical doctors / angiologists received clopidogrel (169 versus 11; p < 0.001), significantly more surgical patients received oral anticoagulants (11 versus 7; p = 0.016). The number of patients without prescriptions for any antithrombotic therapy was 6 (6.9 %) in patients treated by vascular surgeons and 0 (0 %) in patients managed by medical doctors / angiologists (p = 0.001). Prescription-rates of β-blockers, ACE-inhibitors, Angiotensin II-antangonists, calcium channel blockers, and diuretics were statistically not different between the two disciplines, but statins were prescribed significantly more often by medical doctors / angiologists (139 versus 49; p < 0001). With the exceptions of Clopidogrel (women > men) and diuretics (men > women) we observed no gender-specific prescriptions. Conclusions: We observed high prescriptions rates of secondary medical prevention in patients primarily treated by medical doctors / angiologists and vascular surgeons. We believe that this result is highly influenced by our multidisciplinary approach. Nevertheless, efforts have to be made to raise vascular surgeon’s awareness of statin use and complete prescription of antithrombotic and antiplatelet drugs.


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