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https://www.readbyqxmd.com/read/28211362/marrow-isolated-adult-multilineage-inducible-cells-embedded-within-a-biologically-inspired-construct-promote-recovery-in-a-mouse-model-of-peripheral-vascular-disease
#1
Cristina Grau-Monge, Gaëtan J-R Delcroix, Andrea Bonnin-Marquez, Mike Valdes, Ead Lewis Mazen Awadallah, Daniel F Quevedo, Maxime R Armour, Ramon B Montero, Paul C Schiller, Fotios M Andreopoulos, Gianluca D'Ippolito
Peripheral vascular disease is one of the major vascular complications in individuals suffering from diabetes and in the elderly that is associated with significant burden in terms of morbidity and mortality. Stem cell therapy is being tested as an attractive alternative to traditional surgery to prevent and treat this disorder. The goal of this study was to enhance the protective and reparative potential of marrow-isolated adult multilineage inducible (MIAMI) cells by incorporating them within a bio-inspired construct (BIC) made of two layers of gelatin B electrospun nanofibers...
February 17, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28210050/a-study-of-the-relationships-of-changes-in-pain-and-gait-after-tourniquet-induced-ischemia-reperfusion-in-rats
#2
Kazuki Aihara, Takeya Ono, Namiko Umei, Wakako Tsumiyama, Atsushi Tasaka, Hideki Ishikura, Yuta Sato, Tomohiro Matsumoto, Sadaaki Oki
[Purpose] The purpose of this study was to determine the relationships of changes in pain and gait after ischemia reperfusion was induced by tourniquet in rats. [Subjects and Methods] The subjects were six ten-week-old male Wistar rats. Ischemia was induced in the left lower limbs of the experimental rats at a pressure of 300 mmHg for 90 minutes. Pain behavior evaluations were measured using the von Frey test in all the rats' hind limbs. A consistently increasing plantar stimulus was applied until the rats exhibited an escape behavior...
January 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28207177/quaking-is-a-key-regulator-of-endothelial-cell-differentiation-neovascularization-and-angiogenesis
#3
Amy Cochrane, Sophia Kelaini, Marianna Tsifaki, James Bojdo, Marta Vilà-González, Daiana Drehmer, Rachel Caines, Corey Magee, Magdalini Eleftheriadou, Yanhua Hu, David Grieve, Alan W Stitt, Lingfang Zeng, Qingbo Xu, Andriana Margariti
The capability to derive endothelial cell (ECs) from induced Pluripotent Stem (iPS) cells holds huge therapeutic potential for cardiovascular disease. Objective- This study elucidates the precise role of the RNA-binding protein Quaking isoform 5 (QKI-5) during EC differentiation from both mouse and human iPS cells and dissects how RNA-binding proteins can improve differentiation efficiency towards cell therapy for important vascular diseases. iPS cells represent an attractive cellular approach for regenerative medicine today since they can be used to generate patient-specific therapeutic cells towards autologous cell therapy...
February 16, 2017: Stem Cells
https://www.readbyqxmd.com/read/28203578/supersized-atheroma-causing-acquired-coarctation-of-aorta-leading-to-heart-failure
#4
Sajin Karakattu, Ghulam Murtaza, Sharma Dinesh, Kamesh Sivagnanam, Jeffrey Schoondyke, Timir Paul
Calcified atheromatous aortic lesion causing significant narrowing of the aorta is an uncommon clinical entity. This calcified atheroma leads to obstruction of the lumen of the aorta simulating acquired coarctation of aorta causing impaired perfusion of lower limbs, visceral ischemia, and hypertension. We report a case of 58-year-old patient who presented with dyspnea on exertion, orthopnea, paroxysmal nocturnal dyspnea, 25-lb weight gain, lower extremity edema, and chest pain. Extensive workup including computed tomography and magnetic resonance imaging revealed a large calcific mass in the aortic arch causing his presenting symptoms...
January 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28194544/exploring-the-role-of-trpv-and-cgrp-in-adenosine-preconditioning-and-remote-hind-limb-preconditioning-induced-cardioprotection-in-rats
#5
Amritpal Singh, Puneet Kaur Randhawa, Anjana Bali, Nirmal Singh, Amteshwar Singh Jaggi
The cardioprotective effects of remote hind limb preconditioning (RIPC) are well known, but mechanisms by which protection occurs still remain to be explored. Therefore, the present study was designed to investigate the role of TRPV and CGRP in adenosine and remote preconditioning-induced cardioprotection, using sumatriptan, a CGRP release inhibitor and ruthenium red, a TRPV inhibitor, in rats. For remote preconditioning, a pressure cuff was tied around the hind limb of the rat and was inflated with air up to 150 mmHg to produce ischemia in the hind limb and during reperfusion pressure was released...
February 14, 2017: Cardiovascular Drugs and Therapy
https://www.readbyqxmd.com/read/28194186/safety-and-effectiveness-of-bone-marrow-cell-concentrate-in-the-treatment-of-chronic-critical-limb-ischemia-utilizing-a-rapid-point-of-care-system
#6
Venkatesh Ponemone, Saniya Gupta, Dalip Sethi, Manish Suthar, Monika Sharma, Richard J Powell, Kenneth Lee Harris, Nungshi Jungla, Priyadarshini Arambam, Upendra Kaul, Ashok Seth, Suhail Bukhari
Critical limb ischemia (CLI) is the end stage of lower extremity peripheral vascular disease (PVD) in which severe obstruction of blood flow results in ischemic rest pain, ulcers and/or gangrene, and a significant risk of limb loss. This open-label, single-arm feasibility study evaluated the safety and therapeutic effectiveness of autologous bone marrow cell (aBMC) concentrate in revascularization of CLI patients utilizing a rapid point-of-care device. Seventeen (17) no-option CLI patients with ischemic rest pain were enrolled in the study...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28193783/remote-ischemic-preconditioning-triggers-changes-in-autonomic-nervous-system-activity-implications-for-cardioprotection
#7
Safa Abdul-Ghani, Arnold N Fleishman, Igor Khaliulin, Marco Meloni, Gianni D Angelini, M-Saadeh Suleiman
Cardioprotective efficacy of remote ischemic preconditioning (RIPC) remains controversial. Experimental studies investigating RIPC have largely monitored cardiovascular changes during index ischemia and reperfusion with little work investigating changes during RIPC application. This work aims to identify cardiovascular changes associated with autonomic nervous system (ANS) activity during RIPC and prior to index ischemia. RIPC was induced in anesthetized male C57/Bl6 mice by four cycles of 5 min of hindlimb ischemia using inflated cuff (200 mmHg) followed by 5 min reperfusion...
February 2017: Physiological Reports
https://www.readbyqxmd.com/read/28191744/endovascular-therapy-for-angio-seal-tm-related-acute-limb-ischemia-perioperative-and-long-term-results
#8
Hui Dong, Meng Peng, Xiongjing Jiang, Wuqiang Che, Yubao Zou, Bo Xu, Yuejin Yang, Runlin Gao
OBJECTIVES: To investigate the perioperative and long-term outcomes of endovascular therapy for Angio-seal(TM) -related acute limb ischemia. BACKGROUND: Currently, limited data are available on the optimal treatment strategy for Angio-seal(TM) -related acute lower limb ischemia. METHODS: The prospectively maintained patient database of our institution was retrospectively searched to identify all patients who developed acute lower limb ischemia after use of the Angio-Seal(TM) and received endovascular treatment from January 2010 to February 2016...
February 13, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28190717/perioperative-outcomes-of-infrainguinal-bypass-surgery-in-patients-with-and-without-prior-revascularization
#9
Thomas C F Bodewes, Klaas H J Ultee, Peter A Soden, Sara L Zettervall, Katie E Shean, Douglas W Jones, Frans L Moll, Marc L Schermerhorn
OBJECTIVE: Although an increasing number of patients with peripheral arterial disease undergo multiple revascularization procedures, the effect of prior interventions on outcomes remains unclear. The purpose of this study was to evaluate perioperative outcomes of bypass surgery in patients with and those without prior ipsilateral treatment. METHODS: Patients undergoing nonemergent infrainguinal bypass between 2011 and 2014 were identified in the National Surgical Quality Improvement Program Targeted Vascular module...
February 9, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28188848/electroacupuncture-preconditioning-and-postconditioning-inhibit-apoptosis-and-neuroinflammation-induced-by-spinal-cord-ischemia-reperfusion-injury-through-enhancing-autophagy-in-rats
#10
Bo Fang, Meiman Qin, Yun Li, Xiaoqian Li, Wenfei Tan, Ying Zhang, Hong Ma
Electroacupuncture (EA) has beneficial effects on spinal cord ischemia reperfusion (I/R) injury, but the underlying mechanisms are not fully understood. This study aimed to investigate the role of autophagy in the protection of EA preconditioning and postconditioning against spinal cord I/R injury. For this, spinal cord I/R injury was induced by 14min occlusion of the aortic arch, and rats were treated with EA for 20min before or after the surgery. The expression of autophagy components, light chain 3 and Beclin 1, was assessed by Western blot...
February 7, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28184959/endovascular-treatment-strategy-using-catheter-directed-thrombolysis-percutaneous-aspiration-thromboembolectomy-and-angioplasty-for-acute-upper-limb-ischemia
#11
Tatsuo Ueda, Satoru Murata, Izumi Miki, Daisuke Yasui, Fumie Sugihara, Hiroyuki Tajima, Tetsuro Morota, Shin-Ichiro Kumita
PURPOSE: To evaluate the usefulness and safety of endovascular treatments for acute upper limb ischemia (AULI) by using multiple techniques, and to compare catheter-directed thrombolysis (CDT) and percutaneous aspiration thromboembolectomy (PAT) as initial procedures. MATERIALS AND METHODS: The study included 18 patients (4 men and 14 women) with AULI, who underwent a total of 20 sessions of endovascular treatment using various endovascular techniques between January 2005 and April 2016...
February 9, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28182087/pretreatment-with-fish-oil-based-lipid-emulsion-modulates-muscle-leukocyte-chemotaxis-in-murine-model-of-sublethal-lower-limb-ischemia
#12
Yao-Ming Shih, Juey-Ming Shih, Yu-Chen Hou, Chiu-Li Yeh, Cheng-Che Li, Sung-Ling Yeh
This study investigated the effects of a fish oil- (FO-) based lipid emulsion on muscle leukocyte chemotaxis and inflammatory responses in a murine model of limb ischemia-reperfusion (IR) injury. Mice were assigned randomly to 1 sham (sham) group, 2 ischemic groups, and 2 IR groups. The sham group did not undergo the ischemic procedure. The mice assigned to the ischemic or IR groups were pretreated intraperitoneally with either saline or FO-based lipid emulsion for 3 consecutive days. The IR procedure was induced by applying a 4...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28174472/characteristics-of-physical-activity-in-patients-with-critical-limb-ischemia
#13
Satoko Sakaki, Tetsuya Takahashi, Junichi Matsumoto, Kasuya Kubo, Takuya Matsumoto, Ryo Hishinuma, Yuuta Terabe, Hiroshi Ando
[Purpose] The purpose of this study was to evaluate the amount of physical activity of the patients with critical limb ischemia consecutively in order to clarify the characteristics of physical activity of critical limb ischemia. [Subjects and Methods] Twelve patients who were eligible for the 2 months of consecutive evaluation of the amount of physical activity were enrolled in the study (men: 11; woman: 1; mean age: 64.4 [range: 44-80]). A pedometer with an accelerometer was used for the measurement of the number of steps walked as an index of the amount of physical activity...
December 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28170200/glyoxalase-1-overexpression-reverses-defective-proangiogenic-function-of-diabetic-adipose-derived-stem-cells-in-streptozotocin-induced-diabetic-mice-model-of-critical-limb-ischemia
#14
Zhiyou Peng, Xinrui Yang, Jinbao Qin, Kaichuang Ye, Xin Wang, Huihua Shi, Mier Jiang, Xiaobing Liu, Xinwu Lu
Adipose-derived stem cell (ADSC)-based therapy is promising for critical limb ischemia (CLI) treatment, especially in patients with diabetes. However, the therapeutic effects of diabetic ADSCs (D-ADSCs) are impaired by the diabetes, possibly through intracellular reactive oxygen species (ROS) accumulation. The objective of the present study was to detect whether overexpression of methylglyoxal-metabolizing enzyme glyoxalase-1 (GLO1), which reduces ROS in D-ADSCs, can restore their proangiogenic function in a streptozotocin-induced diabetic mice model of CLI...
January 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28169278/improving-the-therapeutic-efficacy-of-mesenchymal-stromal-cells-to-restore-perfusion-in-critical-limb-ischemia-through-pulsed-focused-ultrasound
#15
Pamela A Tebebi, Saejeong J Kim, Rashida A Williams, Blerta Milo, Victor Frenkel, Scott R Burks, Joseph A Frank
Mesenchymal stem cells (MSC) are promising therapeutics for critical limb ischemia (CLI). Mechanotransduction from pulsed focused ultrasound (pFUS) upregulates local chemoattractants to enhance homing of intravenously (IV)-infused MSC and improve outcomes. This study investigated whether pFUS exposures to skeletal muscle would improve local homing of iv-infused MSCs and their therapeutic efficacy compared to iv-infused MSCs alone. CLI was induced by external iliac arterial cauterization in 10-12-month-old mice...
February 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28167285/nanoparticular-delivery-system-for-a-secretoneurin-derivative-induces-angiogenesis-in-a-hind-limb-ischemia-model
#16
Karin Albrecht-Schgoer, Jan Barthelmes, Wilfried Schgoer, Markus Theurl, Isabelle Nardin, Daniela Lener, Clemens Gutmann, Sarah Dünnhaupt, Andreas Bernkop-Schnürch, Rudolf Kirchmair
Common therapeutic strategies for peripheral arterial disease often fail to re-establish sufficient blood flow within legs and feet of patients for avoiding critical limb ischemia, what is characterized by a substantial risk for amputation. The neuropeptide secretoneurin induces angiogenesis in models of limb and myocardial ischemia and might be a promising tool in the treatment of patients without the option of revascularization therapy for severe ischemia. Within this manuscript, the biologically active part of secretoneurin was identified, modified by induction of a cysteine residue to gain higher stability against enzymatic degradation and further packed into S-protected thiolated chitosan nanoparticles, which enable intra-muscular application of secretoneurin...
February 3, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28166662/-ischemic-origin-of-diabetic-foot-disease-epidemiology-difficulties-of-diagnosis-options-for-prevention-and-revascularization
#17
Endre Kolossváry, Zoltán Bánsághi, Gábor Viktor Szabó, Zoltán Járai, Katalin Farkas
"Diabetic foot" as definition covers a multifactorial clinical condition. According to the recent epidemiological data, the role of lower limb ischemia is getting more influential over other pathological causes, like neuropathy, infections and bone or soft tissue deformity. In diabetes, vascular disease leads to increased risk for leg ulcers and minor or major amputations. The traditional diagnostic tools for recognition of peripheral arterial disease have limited value because of diabetes specific clinical manifestations...
February 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28165556/complicated-thoraco-abdominal-aortic-dissection-presenting-with-lower-limb-ischemia-in-a-patient-with-bovine-arch-and-arteria-lusoria
#18
G-R Joliat, C Dubuis, S Déglise
We report the case of a 58-year-old man who presented with thoraco-abdominal pain and right lower limb ischemia due to type B aortic dissection. Moreover, the patient was discovered to have several concomitant aortic arch anomalies (bovine arch, arteria lusoria, and left vertebral artery arising from the aortic arch). Taking into account this complex anatomy, emergent femoral exploration with fenestration and thrombectomy was performed. The blood flow to the right lower limb was restored. A few days later the aortic dissection spread proximally, and the aortic arch dilatation enlarged...
January 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28163177/venous-shunt-versus-venous-ligation-for-vascular-damage-control-the-immuno-histochemical-evidence
#19
Adenauer Marinho de Oliveira Góes Junior, Simone de Campos Vieira Abib, Maria Teresa de Seixas Alves, Paulo Sérgio Venerando da Silva Ferreira, Mariseth Carvalho de Andrade
OBJECTIVES: To evaluate the expression of immuno-histochemical markers of tissue ischemia (iNOS, eNOS and HSP70) in a vascular damage control experimental model in order to determine if a venous temporary vascular shunt insertion leads to a better limb perfusion when compared to the ligature of the injured vein. METHODS: Experimental study in male Sus Scrofa weighting 40 Kg. Animals were distributed into 5 groups: group 1 animals were submitted to right external iliac artery (EIA) shunting and right external iliac vein (EIV) ligation; group 2 animals were submitted to right EIA shunting and right EIV shunting; group 3 animals were submitted to right EIV ligation; group 4 animals were submitted to right EIV shunting; group 5 animals were not submitted to vascular shunting nor venous ligation...
February 2, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28161267/-lower-limb-arterial-thrombosis-in-a-nephrotic-syndrome
#20
Raja Arrab, Aicha Bourrahouate, Mohamed Sbihi, Imane Ait Sab
Thromboembolic complications are frequent in the nephrotic syndrome. Arterial localizations have been rarely reported. There is no consensus on their management; it depends on the location and hypercoagulable state. We report a case of acute lower limb ischemia occurring in children with a history of nephrotic syndrome, complicated by toes necrosis. The diagnosis was made by Doppler ultrasonography. Thrombectomy was performed and the patient received an anticoagulant treatment. Local cares have improved the local state, avoiding surgical necrosectomy...
February 1, 2017: Néphrologie & Thérapeutique
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