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https://www.readbyqxmd.com/read/28820571/comparison-of-spreading-depolarizations-in-the-motor-cortex-and-nucleus-accumbens-similar-patterns-of-oxygen-responses-and-the-role-of-dopamine
#1
Caddy Noahl Hobbs, Gordon Holzberg, Akira S Min, R Mark Wightman
Spreading depolarizations (SD) are pathophysiological phenomena that spontaneously arise in traumatized neural tissue and can promote cellular death. Most investigations of SD are performed in the cortex, a brain region that is susceptible to these depolarizing waves and accessible via a variety of monitoring techniques. Here, we describe SD responses in the cortex and the deep brain region of the nucleus accumbens (NAc) of the anesthetized rat with a minimally invasive, implantable sensor. With high temporal resolution, we characterize the time course of oxygen responses to SD in relation to the electrophysiological depolarization signal...
August 18, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28819334/cytokine-signature-in-end-stage-renal-disease-patients-on-hemodialysis
#2
Danyelle Romana Alves Rios, Melina Barros Pinheiro, Wander Valadares de Oliveira Junior, Karina Braga Gomes, Andréa Teixeira Carvalho, Olindo Assis Martins-Filho, Ana Cristina Simões E Silva, Luci Maria Sant'Ana Dusse
Hemodialysis is a modality of blood filtration in which accumulated toxins and water are removed from the body. This treatment is indicated for patients at the end stage of renal disease. Vascular access complications are responsible for 20-25% of all hospitalizations in dialyzed patients. The occurrence of thrombosis in the vascular access is a serious problem that may severely compromise or even make the hemodialysis impossible, which is vital for the patient. The aim of this study was to investigate inflammatory profile in patients undergoing hemodialysis as well as the association between these alterations and vascular access thrombosis...
2017: Disease Markers
https://www.readbyqxmd.com/read/28819317/intradialytic-central-venous-oxygen-saturation-is-associated-with-clinical-outcomes-in-hemodialysis-patients
#3
Lili Chan, Hanjie Zhang, Anna Meyring-Wösten, Israel Campos, Doris Fuertinger, Stephan Thijssen, Peter Kotanko
Central venous oxygen saturation (ScvO2) in the superior vena cava is predominantly determined by cardiac output, arterial oxygen content, and oxygen consumption by the upper body. While abnormal ScvO2 levels are associated with morbidity and mortality in non-uremic populations, ScvO2 has received little attention in hemodialysis patients. From 1/2012 to 8/2015, 232 chronic hemodialysis patients with central venous catheters as vascular access had their ScvO2 monitored during a 6-month baseline period and followed for up to 36 months...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28816507/arthroscopic-harvest-of-adipose-derived-mesenchymal-stem-cells-from-the-infrapatellar-fat-pad
#4
Jason L Dragoo, Wenteh Chang
BACKGROUND: The successful isolation of adipose-derived mesenchymal stem cells (ADSCs) from the arthroscopically harvested infrapatellar fat pad (IFP) would provide orthopaedic surgeons with an autologous solution for regenerative procedures. PURPOSE: To demonstrate the quantity and viability of the mesenchymal stem cell population arthroscopically harvested from the IFP as well as the surrounding synovium. STUDY DESIGN: Descriptive laboratory study...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28811806/comparison-of-right-and-left-trans-radial-catheterization-for-coronary-angiography-and-intervention-in-patients-with-acute-myocardial-infarction
#5
Hongying Wang, Shijin Song
OBJECTIVE: To compare the clinical characteristics between the right and left radial approach in treating acute myocardial infarction, helping physicians make treatment strategies correctly. METHODS: The patients admitted at our institution and undergoing percutaneous coronary angiography and interventional procedures by left or right radial approach between November 2013 and July 2016 were retrospectively reviewed. The access time, compression time, ambulation time, the amount of contrast material used, fluoroscopy time, interventional procedural time, the number of catheters used, the percentage of procedures completed using the assigned approach and the major vascular complications were recorded and compared between the two groups...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28811546/serum-derived-extracellular-vesicles-evs-impact-on-vascular-remodeling-and-prevent-muscle-damage-in-acute-hind-limb-ischemia
#6
Claudia Cavallari, Andrea Ranghino, Marta Tapparo, Massimo Cedrino, Federico Figliolini, Cristina Grange, Valentina Giannachi, Paolo Garneri, Maria Chiara Deregibus, Federica Collino, Pietro Rispoli, Giovanni Camussi, Maria Felice Brizzi
Serum is an abundant and accessible source of circulating extracellular vesicles (EVs). Serum-EV (sEV) pro-angiogenic capability and mechanisms are herein analyzed using an in vitro assay which predicts sEV angiogenic potential in vivo. Effective sEVs (e-sEVs) also improved vascular remodeling and prevented muscle damage in a mouse model of acute hind limb ischemia. e-sEV angiogenic proteomic and transcriptomic analyses show a positive correlation with matrix-metalloproteinase activation and extracellular matrix organization, cytokine and chemokine signaling pathways, Insulin-like Growth Factor and platelet pathways, and Vascular Endothelial Growth Factor signaling...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28809839/a-novel-mammary-fat-pad-transplantation-technique-to-visualize-the-vessel-generation-of-vascular-endothelial-stem-cells
#7
Qing Cissy Yu, Wenqian Song, Dengwen Lai, Yi Arial Zeng
Endothelial cells (ECs) are the fundamental building blocks of the vascular architecture and mediate vascular growth and remodeling to ensure proper vessel development and homeostasis. However, studies on endothelial lineage hierarchy remain elusive due to the lack of tools to gain access as well as to directly evaluate their behavior in vivo. To address this shortcoming, a new tissue model to study angiogenesis using the mammary fat pad has been developed. The mammary gland develops mostly in the postnatal stages, including puberty and pregnancy, during which robust epithelium proliferation is accompanied by extensive vascular remodeling...
August 3, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28805538/effects-of-far-infrared-therapy-on-arteriovenous-fistulas-in-hemodialysis-patients-a-meta-analysis
#8
Qingsong Wan, Shikun Yang, Li Li, Fenfen Chu
BACKGROUND: Far infrared (FIR) therapy may have a beneficial effect on maturity and function of arteriovenous fistulas (AVFs) in hemodialysis (HD) patients. Therefore, we performed this pooled analysis to assess the protective effects of FIR therapy in HD patients. METHODS: The randomized controlled trials (RCTs) and quasi-RCTs of FIR therapy for HD patients were searched from multiple databases. Relevant studies were screened according to the predefined inclusion criteria...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28804237/aneurysmal-degeneration-of-the-brachial-artery-after-vascular-access-creation-surgical-treatment-results
#9
Sérgio Teixeira, Pedro Sá Pinto, Carlos Veiga, Ivone Silva, Rui Almeida
True peripheral artery aneurysms proximal to a longstanding arteriovenous fistula is a well-recognized complication. Late aneurysmal degeneration is rare. This study analyzed the characteristics, therapeutic options, and outcomes of true donor brachial artery aneurysms (DBAA) after arteriovenous fistula (AVF) for hemodialysis. We retrospectively collected the data of patients with DBAA after AVF creation, surgically repaired between January 2001 and September 2015. We excluded patients with pseudoaneurysms, anastomotic aneurysms, and infected aneurysms...
September 2017: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28803413/neovascularization-during-leafy-gall-formation-on-arabidopsis-thaliana-upon-rhodococcus-fascians-infection
#10
Alicja Dolzblasz, Alicja Banasiak, Danny Vereecke
Extensive de novo vascularization of leafy galls emerging upon Rhodococcus fascians infection is achieved by fascicular/interfascicular cambium activity and transdifferentiation of parenchyma cells correlated with increased auxin signaling. A leafy gall consisting of fully developed yet growth-inhibited shoots, induced by the actinomycete Rhodococcus fascians, differs in structure compared to the callus-like galls induced by other bacteria. To get insight into the vascular development accompanying the emergence of the leafy gall, the anatomy of infected axillary regions of the inflorescence stem of wild-type Arabidopsis thaliana accession Col-0 plants and the auxin response in pDR5:GUS-tagged plants were followed in time...
August 12, 2017: Planta
https://www.readbyqxmd.com/read/28802868/development-and-implementation-of-an-ultrasound-guided-peripheral-intravenous-catheter-program-for-emergency-nurses
#11
Courtney Edwards, Jodi Jones
PROBLEM: Emergency medical care often necessitates placement of peripheral intravenous (PIV) catheters. When traditional methods for obtaining PIV access are not successful, ultrasound guidance is a rescue technique for peripheral vascular placement that improves the quality of patient care. METHODS: The aim of this training program was to develop a process where emergency nurses would be competent to perform ultrasound guided PIV to improve the quality of patient care delivered while reducing throughput time...
August 9, 2017: Journal of Emergency Nursing: JEN: Official Publication of the Emergency Department Nurses Association
https://www.readbyqxmd.com/read/28801849/bevacizumab-in-colorectal-cancer-current-role-in-treatment-and-the-potential-of-biosimilars
#12
REVIEW
Lee S Rosen, Ira A Jacobs, Ronald L Burkes
Colorectal cancer (CRC) is a leading cause of tumor-related morbidity and mortality worldwide, with mortality most often attributable to metastatic disease. Bevacizumab, a humanized monoclonal antibody targeting vascular endothelial growth factor, has a significant role in the treatment of metastatic CRC (mCRC). However, patient access to bevacizumab may be limited in some regions or circumstances, owing to factors related to insurance coverage, reimbursement, patient out-of-pocket costs, or availability. As a result, outcomes for patients with mCRC may be worsened...
August 11, 2017: Targeted Oncology
https://www.readbyqxmd.com/read/28799999/features-of-cardiovascular-disease-in-low-income-and-middle-income-countries-in-adults-and-children-living-with-hiv
#13
Andrew W McCrary, Chidozie U Nduka, Saverio Stranges, Gerald S Bloomfield
PURPOSE OF REVIEW: The current article addresses crucial issues in identifying risk of cardiovascular disease (CVD) in people living with HIV in low-income and middle-income countries (LMICs). These issues are in need of urgent attention to advance our knowledge and inform actions to mitigate CVD in this population. We address CVDs in adults living with HIV as well as the unique aspects pertaining to children living with HIV (CLHIV), a group sorely under-represented in this field. RECENT FINDINGS: CVDs affecting adults such as hypertension, dyslipidemia, coronary artery disease, and heart failure, in addition to myocardial dysfunction, vascular diseases, and autoimmune phenomena are also being reported in CLHIV...
August 10, 2017: Current Opinion in HIV and AIDS
https://www.readbyqxmd.com/read/28799706/outcome-after-transcatheter-occlusion-of-patent-ductus-arteriosus-in-infants-less-than-6-kg-a-national-study-from-united-kingdom-and-ireland
#14
Sok-Leng Kang, Salim Jivanji, Chetan Mehta, Andrew J Tometzki, Graham Derrick, Robert Yates, Sachin Khambadkone, Joseph de Giovanni, Oliver Stumper, Rami Dhillon, Vinay Bhole, Zdenek Slavik, Michael Rigby, Patrick Noonan, Ben Smith, Brodie Knight, Trevor Richens, Neil Wilson, Kevin Walsh, Adam James, John Thomson, Jamie Bentham, Nicholas Hayes, Sajid Nazir, Satish Adwani, Arjamand Shauq, Ram Ramaraj, Christopher Duke, Demetris Taliotis, Vikram Kudumula, San-Fui Yong, Gareth Morgan, Eric Rosenthal, Thomas Krasemann, Shakeel Qureshi, David Crossland, Tony Hermuzi, Robin P Martin
OBJECTIVES: This study aimed to report our national experience with transcatheter patent ductus arteriosus (PDA) occlusion in infants weighing <6 kg. BACKGROUND: The technique of transcatheter PDA closure has evolved in the past two decades and is increasingly used in smaller patients but data on safety and efficacy are limited. METHODS: Patients weighing < 6 kg in whom transcatheter PDA occlusion was attempted in 13 tertiary paediatric cardiology units in the United Kingdom and Ireland were retrospectively analyzed to review the outcome and complications...
August 11, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28798220/vascular-access-type-and-clinical-outcomes-among-elderly-patients-on-hemodialysis
#15
Timmy Lee, Mae Thamer, Qian Zhang, Yi Zhang, Michael Allon
BACKGROUND AND OBJECTIVES: The optimal type of initial permanent access for hemodialysis among the elderly is controversial. Duration of central venous catheter dependence, patient comorbidities, and life expectancy are important considerations in whether to place an arteriovenous fistula or graft. We used an observational study design to compare clinical outcomes in elderly patients who initiated hemodialysis with a central venous catheter and subsequently had an arteriovenous fistula or graft placed...
August 10, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28798204/imaging-igf-i-uptake-in-growth-plate-cartilage-using-in-vivo-multiphoton-microscopy
#16
Maria A Serrat, Gabriela Ion
Bones elongate through endochondral ossification in cartilaginous growth plates located at ends of primary long bones. Linear growth ensues from a cascade of biochemical signals initiated by actions of systemic and local regulators on growth plate chondrocytes. Although cellular processes are well defined, there is a fundamental gap in understanding how growth regulators are physically transported from surrounding blood vessels into and through dense, avascular cartilage matrix. Intravital imaging using in vivo multiphoton microscopy is one promising strategy to overcome this barrier by quantitatively tracking molecular delivery to cartilage from the vasculature in real time...
August 10, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28797716/radiology-trainee-vs-faculty-radiologist-fluoroscopy-time-for-imaging-guided-procedures-a-retrospective-study-of-17-966-reports-over-a-5-5-year-period
#17
REVIEW
Ariadne K DeSimone, Andrew Post, Richard Duszak, Phuong-Anh T Duong
To evaluate differences in fluoroscopy time (FT) for common vascular access and gastrointestinal procedures performed by radiology trainees vs faculty radiologists. Report information was extracted for all 17,966 index fluoroscopy services performed by trainees or faculty, or both from 2 university hospitals over 66 months. Various vascular access procedures (eg, peripherally inserted central catheters [PICCs] and ports) and gastrointestinal fluoroscopy procedures (eg, upper gastrointestinal and contrast enema studies) were specifically targeted...
July 8, 2017: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/28796429/comparison-of-time-to-obtain-intraosseous-versus-jugular-venous-catheterization-on-canine-cadavers
#18
Alison R Allukian, Amanda L Abelson, Jonathan Babyak, Elizabeth A Rozanski
OBJECTIVE: To compare the time required and the success rate of personnel with 4 different levels of experience to place a humeral intraosseous (IO) catheter versus a jugular venous catheter (IV) in cadaver dogs. DESIGN: Prospective study. SETTING: Veterinary university teaching hospital. INTERVENTIONS: Canine cadavers from recently euthanized dogs were obtained from the cadaver donation program between May and December 2014...
August 10, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28796143/treatment-patterns-and-2-year-vision-outcomes-with-bevacizumab-in-diabetic-macular-edema-an-analysis-from-a-large-u-s-integrated-health-care-system
#19
Donald S Fong, Tiffany Q Luong, Richard Contreras, Jennifer J Jimenez, Peter H Custis, Vaishali Patel, Joanna H Campbell
PURPOSE: To assess health care utilization and vision outcomes over 2 years in patients receiving bevacizumab treatment in clinical practice for diabetic macular edema. METHODS: Patients with newly diagnosed diabetic macular edema who received an intravitreal bevacizumab injection within 12 months of initial diagnosis were identified from Kaiser Permanente's 350,000 patients with diabetes mellitus treated between 2008 and 2013. Snellen best-corrected visual acuity (BCVA), number of intravitreal injections, and patient characteristics were abstracted from the electronic record...
August 8, 2017: Retina
https://www.readbyqxmd.com/read/28795379/editorial-special-issue-on-vascular-access-towards-improving-vascular-access
#20
EDITORIAL
Michael T Walsh, James E Moore
No abstract text is available yet for this article.
August 9, 2017: Cardiovascular Engineering and Technology
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