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https://www.readbyqxmd.com/read/28647640/bypass-surgery-after-endovascular-therapy-for-infrapopliteal-lesion-is-not-a-poor-outcome-compared-with-initial-bypass-surgery-by-vascular-surgeons
#1
Koichi Morisaki, Terutoshi Yamaoka, Kazuomi Iwasa, Takahiro Ohmine
PURPOSE: It is unclear whether prior endovascular therapy (EVT) adversely affects bypass surgery. The aim of this study is to investigate treatment outcomes between initial bypass (bypass-first) and bypass surgery after EVT (EVT-first). METHODS: We conducted a retrospective analysis of critical limb ischemia patients undergoing infrapopliteal bypass between November 2006 and December 2015. Graft patency, limb salvage (LS), amputation-free survival (AFS), and overall survival (OS) were examined between bypass-first and EVT-first groups...
June 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28647315/safety-and-efficacy-of-new-biodegradable-polymer-based-sirolimus-eluting-stents-in-a-preclinical-model
#2
Armando Pérez de Prado, Claudia Pérez Martínez, Carlos Cuellas Ramón, Marta Regueiro Purriños, María López Benito, José Manuel Gonzalo Orden, José Antonio Rodríguez Altónaga, Rodrigo Estévez Loureiro, Tomás Benito González, David Viñuela Baragaño, María Molina Crisol, Marc Amorós Aguilar, Isabel Pérez Serranos, Arnau Vidal Parreu, Ana Benavides Montegordo, Luis Duocastella Codina, Felipe Fernández Vázquez
INTRODUCTION AND OBJECTIVES: New drug-eluting stents (DES) designed to overcome the limitations of existing devices should initially be tested in preclinical studies. Our objective was to analyze the safety and efficacy of new biodegradable polymer-based DES compared with bare-metal stents (BMS) and commercially available DES in a model of normal porcine coronary arteries. METHODS: We randomly implanted 101 stents (BMS and biodegradable polymer-based sirolimus-eluting stents: 3 test stent iterations [BD1, BD2, and BD3], Orsiro, Biomime and Biomatrix) in the coronary arteries of 34 domestic pigs...
June 21, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/28646446/innovations-in-the-endovascular-management-of-critical-limb-ischemia-retrograde-tibiopedal-access-and-advanced-percutaneous-techniques
#3
REVIEW
Jihad A Mustapha, Larry J Diaz-Sandoval, Fadi Saab
PURPOSE OF REVIEW: Retrograde tibiopedal access and interventions have contributed to advance of endovascular techniques to treat critical limb ischemia (CLI) patients. This review encompasses the spectrum from advanced diagnostic imaging and technical therapeutic approaches for infrapopliteal occlusions, to a discussion of current standards and future directions. RECENT FINDINGS: Contemporary studies of infrapopliteal angioplasty show suboptimal short-term and 1-year clinical outcomes...
August 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28646271/characterization-of-adipose-derived-stem-cells-following-burn-injury
#4
Anesh Prasai, Amina El Ayadi, Randy C Mifflin, Michael D Wetzel, Clark R Andersen, Heinz Redl, David N Herndon, Celeste C Finnerty
Severe burns induce a prolonged inflammatory response in subcutaneous adipose tissue that modulates signaling in adipose-derived stem cells (ASCs), which hold potential for healing burn wounds or generating skin substitutes. Using a 60% rat scald burn model, we conducted a series of experiments to determine which cells isolated from the adipose tissue produced inflammatory mediators and how these changes affect ASC fate and function. The stromal vascular fraction (SVF), adipocytes, and ASCs were isolated from adipose tissue at varying times up to 4 weeks postburn and from non-injured controls...
June 23, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28645555/impact-of-intraoperative-vascular-occlusion-during-liver-surgery-on-long-term-outcomes-a-meta-analysis
#5
REVIEW
Cheng Gong, Haitao Wang, Pengpeng Liu, Tao Guo
OBJECTIVE: To determine the impact of intraoperative vascular occlusion during liver surgery on postoperative long-term outcomes for hepatocellular carcinoma (HCC) patients using a meta-analysis. METHODS: A systematic literature search of PubMed, EMBASE, and Cochrane Central was conducted to discover relevant randomized controlled trials (RCTs) and observational studies. Studies that reported postoperative long-term outcomes; 1-, 3-, and 5-year overall survival (OS); and/or 1-, 3-, and 5-year recurrence-free survival (RFS) for both an observation group (vascular occlusion) and a control group (vascular non-occlusion) were included...
June 20, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28645482/proton-pump-inhibitors-and-survival-outcomes-in-patients-with-metastatic-renal-cell-carcinoma
#6
Aly-Khan A Lalani, Rana R McKay, Xun Lin, Ronit Simantov, Marina D Kaymakcalan, Toni K Choueiri
INTRODUCTION: Proton pump inhibitors (PPIs) are potent inhibitors of gastric acid secretion and can affect the optimal absorption of concomitant oral medications, such as vascular endothelial growth factor (VEGF) tyrosine kinase inhibitors (TKIs). The purpose of this study was to investigate the effect of PPI use on survival in metastatic renal cell carcinoma (mRCC) patients treated in the targeted therapy era. MATERIALS AND METHODS: We conducted a pooled analysis of mRCC patients treated in phase II and III clinical trials...
May 31, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28645084/application-of-the-combination-index-ci-isobologram-equation-to-research-the-toxicological-interactions-of-clothianidin-thiamethoxam-and-dinotefuran-in-honeybee-apis-mellifera
#7
Yanmei Liu, Sihong Liu, Hui Zhang, Yanping Gu, Xuesheng Li, Mingyuan He, Huihua Tan
Due to complex pest control scenarios and the needs of agricultural production, different neonicotinoids may be used in certain agricultural applications. Consequently, honeybees may be exposed to these substances through distribution throughout plant tissues via the vascular system through several pathways, such as surface water, the exudates excreted from plants, and air pollution via drift of dust as well as contaminated pollen and nectar. In the current study, the single and combined toxicity of clothianidin, dinotefuran, and thiamethoxam to honeybees was examined after 48 h exposure by the acute oral method and combination index (CI)-isobologram equation...
June 13, 2017: Chemosphere
https://www.readbyqxmd.com/read/28644844/carbonic-anhydrase-inhibitor-attenuates-ischemia-reperfusion-induced-acute-lung-injury
#8
Chou-Chin Lan, Chung-Kan Peng, Shih-En Tang, Kun-Lun Huang, Chin-Pyng Wu
Ischemia-reperfusion (IR)-induced acute lung injury (ALI) is implicated in several clinical conditions including lung transplantation, cardiopulmonary bypass surgery, re-expansion of collapsed lung from pneumothorax or pleural effusion and etc. IR-induced ALI remains a challenge in the current treatment. Carbonic anhydrase has important physiological function and influences on transport of CO2. Some investigators suggest that CO2 influences lung injury. Therefore, carbonic anhydrase should have the role in ALI...
2017: PloS One
https://www.readbyqxmd.com/read/28643862/tumor-angiogenesis-revisited-regulators-and-clinical-implications
#9
REVIEW
Roberto Ronca, Mohammed Benkheil, Stefania Mitola, Sofie Struyf, Sandra Liekens
Since Judah Folkman hypothesized in 1971 that angiogenesis is required for solid tumor growth, numerous studies have been conducted to unravel the angiogenesis process, analyze its role in primary tumor growth, metastasis and angiogenic diseases, and to develop inhibitors of proangiogenic factors. These studies have led in 2004 to the approval of the first antiangiogenic agent (bevacizumab, a humanized antibody targeting vascular endothelial growth factor) for the treatment of patients with metastatic colorectal cancer...
June 23, 2017: Medicinal Research Reviews
https://www.readbyqxmd.com/read/28643776/ezrin-enhances-line-tension-along-transcellular-tunnel-edges-via-nmiia-driven-actomyosin-cable-formation
#10
Caroline Stefani, David Gonzalez-Rodriguez, Yosuke Senju, Anne Doye, Nadia Efimova, Sébastien Janel, Justine Lipuma, Meng Chen Tsai, Daniel Hamaoui, Madhavi P Maddugoda, Olivier Cochet-Escartin, Coline Prévost, Frank Lafont, Tatyana Svitkina, Pekka Lappalainen, Patricia Bassereau, Emmanuel Lemichez
Transendothelial cell macroaperture (TEM) tunnels control endothelium barrier function and are triggered by several toxins from pathogenic bacteria that provoke vascular leakage. Cellular dewetting theory predicted that a line tension of uncharacterized origin works at TEM boundaries to limit their widening. Here, by conducting high-resolution microscopy approaches we unveil the presence of an actomyosin cable encircling TEMs. We develop a theoretical cellular dewetting framework to interpret TEM physical parameters that are quantitatively determined by laser ablation experiments...
June 23, 2017: Nature Communications
https://www.readbyqxmd.com/read/28640707/response-assessment-in-neuro-oncology-clinical-trials
#11
Patrick Y Wen, Susan M Chang, Martin J Van den Bent, Michael A Vogelbaum, David R Macdonald, Eudocia Q Lee
Development of novel therapies for CNS tumors requires reliable assessment of response and progression. This requirement has been particularly challenging in neuro-oncology for which contrast enhancement serves as an imperfect surrogate for tumor volume and is influenced by agents that affect vascular permeability, such as antiangiogenic therapies. In addition, most tumors have a nonenhancing component that can be difficult to accurately quantify. To improve the response assessment in neuro-oncology and to standardize the criteria that are used for different CNS tumors, the Response Assessment in Neuro-Oncology (RANO) working group was established...
June 22, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28640364/a-phase-2-study-of-the-efficacy-and-biomarker-on-the-combination-of-transarterial-chemoembolization-and-axitinib-in-the-treatment-of-inoperable-hepatocellular-carcinoma
#12
Stephen L Chan, Winnie Yeo, Frankie Mo, Anthony W H Chan, Jane Koh, Leung Li, Edwin P Hui, Charing C N Chong, Paul B S Lai, Tony S K Mok, Simon C H Yu
BACKGROUND: A surge of vascular endothelial growth factor (VEGF) after transarterial chemoembolization (TACE) may contribute to tumor progression. Axitinib is a potent antiangiogenic agent with main activity against VEGF receptors 1 to 3. To the authors' knowledge, its role in combination with TACE for the treatment of patients with inoperable hepatocellular carcinoma (HCC) is unclear. METHODS: A phase 2 clinical trial (ClinicalTrials.gov identifier NCT01352728) was conducted to evaluate the combination treatment...
June 22, 2017: Cancer
https://www.readbyqxmd.com/read/28637347/mechanisms-underlying-the-long-term-survival-of-the-monocot-dracaena-marginata-under-drought-conditions
#13
Radek Jupa, Roman Plichta, Zuzana Paschová, Nadezhda Nadezhdina, Roman Gebauer
Efficient water management is essential for the survival of vascular plants under drought stress. While interrelations among drought stress, plant anatomy and physiological functions have been described in woody dicots, similar research is very limited for non-palm arborescent and shrubby monocots despite their generally high drought tolerance. In this study, potted transplants of Dracaena marginata Lam. in primary growth stage were exposed to several short- and long-term drought periods. Continuous measurements of sap flow and stem diameter, the evaluation of capacitance and leaf conductance, the quantification of non-structural carbohydrates (NSC), and organ-specific anatomical analyses were performed to reveal the mechanisms promoting plant resistance to limited soil moisture...
June 14, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28635237/-comparison-of-the-short-term-and-long-term-outcomes-of-laparoscopic-surgery-and-open-surgery-for-early-stage-cervical-cancer
#14
H Y He, Z J Yang, D Y Zeng, D S Yao, J T Fan, R F Zhao, J Q Zhang, X X Hu, Z Lin, Y M Jiang, L Li
Objective: To evaluate the short-term and long-term outcomes after laparoscopic surgery compared with traditional laparotomy in cases of stage ⅠA2-ⅡA2 cervical cancer. Methods: We conducted a retrospective study on the clinical data of 1 863 patients diagnosed as FIGO stages ⅠA2-ⅡA2 cervical cancer in 6 third-grade class-A hospitals in Guangxi province between January 2007 and May 2014. One thousand and seventy-one received laparoscopy, and 792 received laparotomy. T-test, U-test and χ(2) test were used to compare the short-term and long-term outcomes...
June 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28634748/exposure-response-relationship-of-ramucirumab-in-east-asian-patients-from-rainbow-a-randomized-clinical-trial-in-second-line-treatment-of-gastric-cancer
#15
Tae You Kim, Chia-Jui Yen, Salah-Eddin Al-Batran, David Ferry, Ling Gao, Yanzhi Hsu, Rebecca Cheng, Mauro Orlando, Atsushi Ohtsu
BACKGROUND: Ramucirumab is a recombinant human IgG1 neutralizing monoclonal antibody specific for vascular endothelial growth factor receptor-2. Second-line ramucirumab, in conjunction with paclitaxel (ramucirumab 8 mg/kg or placebo in combination with 80 mg/m(2) paclitaxel), has been shown to be effective and safe in patients with advanced gastric or gastroesophageal junction (GEJ) adenocarcinoma in RAINBOW, a global phase III randomized clinical trial. We conducted an exploratory exposure-response analysis of efficacy and safety of ramucirumab in East Asian patients from the RAINBOW trial...
June 20, 2017: Gastric Cancer
https://www.readbyqxmd.com/read/28634621/role-of-mri-in-predicting-meniscal-tear-reparability
#16
Paolo Florent Felisaz, Francesco Alessandrino, Simone Perelli, Giacomo Zanon, Francesco Benazzo, Fabrizio Calliada, Luigi Sammarchi
OBJECTIVE: To elucidate the role of MRI in predicting meniscal tear reparability according to tear type and location in relation to vascular zones. MATERIALS AND METHODS: In this retrospective study, two readers evaluated 79 pre-surgical MRIs of meniscal tears arthroscopically treated with meniscectomy or meniscal repair. Tears were classified according to type into vertical, horizontal, radial, complex, flaps and bucket handle and were considered reparable if the distance measured from the tear to the menisco-capsular junction was less than or equal to 5 mm...
June 20, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28632941/systematic-review-of-carotid-artery-procedures-and-the-volume-outcome-relationship-in-europe
#17
REVIEW
P Phillips, E Poku, M Essat, H B Woods, E A Goka, E C Kaltenthaler, P Shackley, S Walters, J A Michaels
BACKGROUND: Hospitals that conduct more procedures on the carotid arteries may achieve better outcomes. In the context of ongoing reconfiguration of UK vascular services, this systematic review was conducted to evaluate the relationship between the volume of carotid procedures and outcomes, including mortality and stroke. METHODS: Searches of electronic databases identified studies that reported the effect of hospital or clinician volume on outcomes. Reference and citation searches were also performed...
June 20, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28631633/significance-of-vascular-endothelial-growth-factor-and-cd31-and-morphometric-analysis-of-microvessel-density-by-cd31-receptor-expression-as-an-adjuvant-tool-in-diagnosis-of-psoriatic-lesions-of-skin
#18
Nitika Chawla, Sant Prakash Kataria, Kamal Aggarwal, Pardeep Chauhan, Dinesh Kumar
BACKGROUND: Pathogenesis of psoriasis is a debated issue. Several mechanisms have been proposed to identify the etiology and pathogenesis so that specific treatments can be given to patients with psoriasis. AIMS: (1) To compare pattern and distribution of vascular endothelial growth factor (VEGF) and CD31 in patients with psoriasis and other psoriasiform lesions of skin. (2) To study the correlation between VEGF and CD31 expression, clinical severity, and histopathology of psoriasiform lesions of skin...
April 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28631382/a-phase-ii-trial-evaluating-the-feasibility-of-adding-bevacizumab-to-standard-osteosarcoma-therapy
#19
Fariba Navid, Victor M Santana, Michael Neel, M Beth McCarville, Barry L Shulkin, Jianrong Wu, Catherine A Billups, Shenghua Mao, Vinay M Daryani, Clinton F Stewart, Michelle Kunkel, Wendene Smith, Deborah Ward, Alberto S Pappo, Armita Bahrami, David M Loeb, Jennifer Reikes Willert, Bhaskar N Rao, Najat C Daw
Increased vascular endothelial growth factor (VEGF) expression in osteosarcoma correlates with a poor outcome. We conducted a phase II trial to evaluate the feasibility and efficacy of combining bevacizumab, a monoclonal antibody against VEGF, with methotrexate, doxorubicin and cisplatin (MAP) in patients with localized osteosarcoma. Eligible patients received 2 courses of MAP chemotherapy before definitive surgery at week 10. Bevacizumab (15 mg/kg) was administered 3 days before starting chemotherapy then on day 1 of weeks 3 and 5 of chemotherapy...
June 20, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28629735/chronic-fluoxetine-treatment-enhances-sympathetic-activities-associated-with-abnormality-of-baroreflex-function-in-conscious-normal-rats
#20
Ling-Zong Hong, Keh-Feng Huang, Siu-Wan Hung, Li-Te Kuo
Data regarding the effects of selective serotonin reuptake inhibitors (SSRIs), which are a common type of antidepressants, on cardiovascular autonomic function are inconsistent. The present study was conducted to determine the effects of chronic fluoxetine, an SSRI, on blood pressure, cardiac autonomic nervous activities and baroreflex control of heart rate. Male Sprague-Dawley rats were treated with fluoxetine (10mg/kg day, p.o.) or saline for 14 weeks. Baroreflex function was determined by the sigmoid logistic method based on the heart rate responses to changes in blood pressure elicited by phenylephrine or sodium nitroprusside infusions...
June 16, 2017: European Journal of Pharmacology
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