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https://www.readbyqxmd.com/read/27916890/indoxyl-sulfate-review-of-toxicity-and-therapeutic-strategies
#1
REVIEW
Sheldon C Leong, Tammy L Sirich
Indoxyl sulfate is an extensively studied uremic solute. It is a small molecule that is more than 90% bound to plasma proteins. Indoxyl sulfate is derived from the breakdown of tryptophan by colon microbes. The kidneys achieve high clearances of indoxyl sulfate by tubular secretion, a function not replicated by hemodialysis. Clearance by hemodialysis is limited by protein binding since only the free, unbound solute can diffuse across the membrane. Since the dialytic clearance is much lower than the kidney clearance, indoxyl sulfate accumulates to relatively high plasma levels in hemodialysis patients...
November 30, 2016: Toxins
https://www.readbyqxmd.com/read/27916829/in-vitro-study-of-a-superhydrophilic-thin-film-nitinol-endograft-that-is-electrostatically-endothelialized-in-the-catheter-prior-to-the-endovascular-procedure
#2
Mahdis Shayan, Yanfei Chen, Puneeth Shridhar, Colin P Kealey, YoungJae Chun
Electrostatic endothelial cell seeding has evolved as an exceptional technique to improve the efficiency of cell seeding in terms of frequency of attached cells and the amount of cell adhesion for the treatment of vascular diseases. In the recent times, both untreated and superhydrophilic thin film nitinol (TFN) have exhibited strong prospects as substrates for creation of small-diameter endovascular grafts due to their hallmark properties of superelasticity, ultra low-profile character, and grown hemocompatible oxide layer with the presence of a uniform endothelial layer on the surface...
November 29, 2016: Journal of Functional Biomaterials
https://www.readbyqxmd.com/read/27916655/allopurinol-as-a-therapeutic-option-in-cardiovascular-disease
#3
REVIEW
Osita N Okafor, K Farrington, Diana A Gorog
Epidemiological studies indicate that hyperuricaemia is an independent risk factor for cardiovascular disease. Alongside uric acid formation, increased xanthine oxidase activity also results in the formation of oxidative free radicals and superoxide particles. Oxidative stress significantly contributes to the development of cardiovascular disease, including endothelial cell dysfunction, atherosclerosis, vascular calcification and impaired myocardial energetics. Allopurinol, a competitive xanthine oxidase inhibitor, in addition to reducing serum uric acid levels, can act as a free radical scavenger...
December 1, 2016: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27914110/physical-exercise-for-the-treatment-of-non-ulcerated-chronic-venous-insufficiency
#4
REVIEW
Diego N Araujo, Cibele Td Ribeiro, Alvaro Cc Maciel, Selma S Bruno, Guilherme Af Fregonezi, Fernando Al Dias
BACKGROUND: Chronic venous insufficiency (CVI) is a common disease that causes discomfort and impairs the quality of life of affected persons. Treatments such as physical exercise that aim to increase the movement of the ankle joint and strengthen the muscle pump in the calf of the leg may be useful to reduce the symptoms of CVI. OBJECTIVES: To assess and summarise the existing clinical evidence on the efficacy and safety of physical exercise programmes for the treatment of individuals with non-ulcerated CVI...
December 3, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27913654/novel-small-molecule-jp-153-targets-the-src-fak-paxillin-signaling-complex-to-inhibit-vegf-induced-retinal-angiogenesis
#5
Jordan J Toutounchian, Jayaprakash Pagadala, Duane D Miller, Jerome Baudry, Frank Park, Edward Chaum, Charles R Yates
Targeting vascular endothelial growth factor (VEGF) is a common treatment strategy for neovascular eye disease, a major cause of vision loss in diabetic retinopathy and age-related macular degeneration. However, the decline in clinical efficacy over time in many patients suggests that monotherapy of anti-VEGF protein therapeutics may benefit from adjunctive treatments. Our previous work has shown that through decreased activation of the cytoskeletal protein paxillin, growth factor-induced ischemic retinopathy in the murine oxygen-induced retinopathy model could be inhibited...
January 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/27910061/inhaled-gene-transfer-for-pulmonary-circulation
#6
Jaume Aguero, Lahouaria Hadri, Nadjib Hammoudi, Lauren Leonardson, Roger J Hajjar, Kiyotake Ishikawa
Chronic pulmonary hypertension (PH) is associated with right ventricular failure and high mortality regardless of the underlying disease. Currently, therapies can improve clinical outcomes in specific subsets of patients, but have little impact on the progression of pulmonary vascular remodeling. Upon new advances in vector development and delivery techniques, gene therapy is a novel strategy in this field with the potential of overcoming the main limitations of approved drug therapies: modulation of novel anti-remodeling targets and selective pulmonary vasculature targeting with minimal systemic effects...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27904650/cabozantinib-in-the-treatment-of-advanced-renal-cell-carcinoma-clinical-trial-evidence-and-experience
#7
REVIEW
Jose Manuel Ruiz-Morales, Daniel Y C Heng
The treatment of metastatic renal cell carcinoma (mRCC) is rapidly changing. During first-line treatment with targeted therapy, patients ultimately develop resistance to therapy and the disease progresses. Recently, cabozantinib has demonstrated a better response rate, progression-free survival and overall survival compared with everolimus after failure of prior targeted therapy in patients with advanced or metastatic renal cell carcinoma (RCC). Cabozantinib is a small-molecule tyrosine kinase inhibitor (TKI)...
December 2016: Therapeutic Advances in Urology
https://www.readbyqxmd.com/read/27904441/dynamic-contrast-enhanced-ultrasound-of-the-bowel-wall-with-quantitative-assessment-of-crohn-s-disease-activity-in-childhood
#8
Damjana Kljucevsek, Dubravka Vidmar, Darja Urlep, Rok Dezman
BACKGROUND: Contrast-enhanced ultrasound (CEUS) has become an established non-invasive, patient-friendly imaging technique which improves the characterization of lesions. In addition, dynamic contrast-enhanced ultrasound (DCE-US) provides valuable information concerning perfusion of examined organs. This review addresses current applications of CEUS in children, focused on DCE-US of the bowel wall in patients with Crohn disease, which enables realtime assessment of the bowel wall vascularity with semi-quantitative and quantitative assessment of disease activity and response to medical treatment...
December 1, 2016: Radiology and Oncology
https://www.readbyqxmd.com/read/27902730/spectrum-of-cerebrovascular-disease-in-patients-with-multiple-myeloma-undergoing-chemotherapy-results-of-a-case-control-study
#9
Archana Hinduja, Kaustubh Limaye, Rahul Ravilla, Appalnaidu Sasapu, Xenofon Papanikolaou, Lai Wei, Michel Torbey, Sarah Waheed
OBJECTIVES: Patients with multiple myeloma (MM) are at increased risk of arterial thrombosis. Our aim was to determine the risk factors, mechanisms and outcome of strokes in these patients. METHODS: We conducted a retrospective matched case-control study from our database of MM patients enrolled in Total Therapy (TT) 2, TT3a and TT3b protocols who developed a vascular event (transient ischemic attack, ischemic stroke, or intracerebral hemorrhage) from October 1998 to January 2014...
2016: PloS One
https://www.readbyqxmd.com/read/27898181/endovenous-ablation-therapy-laser-or-radiofrequency-or-foam-sclerotherapy-versus-conventional-surgical-repair-for-short-saphenous-varicose-veins
#10
REVIEW
Sharath Chandra Vikram Paravastu, Margaret Horne, P Dominic F Dodd
BACKGROUND: Short (or small) saphenous vein (SSV) varices occur as a result of an incompetent sapheno-popliteal junction, where the SSV joins the popliteal vein, resulting in reflux in the SSV; they account for about 15% of varicose veins. Untreated varicose veins may sometimes lead to ulceration of the leg, which is difficult to manage. Traditionally, treatment was restricted to surgery or conservative management. Since the 1990s, however, a number of minimally invasive techniques have been developed; these do not normally require a general anaesthetic, are day-case procedures with a quicker return to normal activities and avoid the risk of wound infection which may occur following surgery...
November 29, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27895066/protocol-of-the-swiss-longitudinal-cohort-study-swicos-in-rural-switzerland
#11
Andreas W Schoenenberger, Franco Muggli, Gianfranco Parati, Augusto Gallino, Georg Ehret, Paolo M Suter, Renate Schoenenberger-Berzins, Therese J Resink, Paul Erne
INTRODUCTION: Increased longevity and consequent major changes in demographics and population lifestyles necessitate new approaches to reduce the burden of ageing-related diseases (including cardiovascular disease) and maintain an optimal quality of life. This study aims to examine and longitudinally follow health status and disease risk factors in a Swiss rural cohort, evaluating all health-related research and practice disciplines to assure development of new implementable and successful preventive strategies for healthy ageing...
November 28, 2016: BMJ Open
https://www.readbyqxmd.com/read/27892636/impaired-retinal-vasoreactivity-an-early-marker-of-stroke-risk-in-diabetes
#12
Kerstin Bettermann, Julia Slocomb, Vikram Shivkumar, David Quillen, Thomas W Gardner, Mary E Lott
Diabetes is a common cause of small vessel disease leading to stroke and vascular dementia. While the function and structure of large cerebral vessels can be easily studied, the brain's microvasculature remains difficult to assess. Previous studies have demonstrated that structural changes in the retinal vessel architecture predict stroke risk, but these changes occur at late disease stages. Our goal was to examine whether retinal vascular status can predict cerebral small vessel dysfunction during early stages of diabetes...
November 28, 2016: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/27891240/differences-in-the-clinical-manifestations-and-short-term-prognosis-of-acute-cerebral-infarction-after-exposure-to-agent-orange
#13
SangWoo Han, Inha Hwang, Seung Min Kim, Young Soon Yang, SangWon Ha, Jeong Ho Han, Tae Hwan Park
BACKGROUND: Agent Orange (AO) is the code name for one of the herbicides and defoliants used in the Vietnam War. Studies conducted thus far show a significant correlation between AO and the occurrence of cardiovascular diseases. But there is little data on the association between AO and stroke, and limited studies have targeted patient groups exposed to AO. METHOD: Bohun medical center Institutional Review Board (IRB) approved the study. (ID: 341) We studied patients with acute ischemic stroke within 7 days of onset in VHS medical center and 4 other general hospitals...
2016: Annals of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/27885275/tdb-protects-vascular-endothelial-cells-against-oxygen-glucose-deprivation-reperfusion-induced-injury-by-targeting-mir-34a-to-increase-bcl-2-expression
#14
Li-Xi Liao, Ming-Bo Zhao, Xin Dong, Yong Jiang, Ke-Wu Zeng, Peng-Fei Tu
Prolonged ischemia can result in apoptotic death of vascular endothelial cells and lead to ischemic vascular diseases including vascular dementia, arteriosclerosis and brain oedema. Finding protective strategies to prevent this is therefore an urgent mission. Recent studies have shown that dysregulation of microRNAs (miRNAs) can lead to imbalance of Bcl-2 family proteins and mitochondrial dysfunction, leading to further damage of vascular cells under ischemic conditions. However, whether miRNAs can be used as a drug target for treating vascular diseases is not fully understood...
November 25, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27882487/delivery-of-small-interfering-rna-to-inhibit-vascular-endothelial-growth-factor-in-zebrafish-using-natural-brain-endothelia-cell-secreted-exosome-nanovesicles-for-the-treatment-of-brain-cancer
#15
Tianzhi Yang, Brittany Fogarty, Bret LaForge, Salma Aziz, Thuy Pham, Leanne Lai, Shuhua Bai
Although small interfering RNA (siRNA) holds great therapeutic promise, its delivery to the disease site remains a paramount obstacle. In this study, we tested whether brain endothelial cell-derived exosomes could deliver siRNA across the blood-brain barrier (BBB) in zebrafish. Natural exosomes were isolated from brain endothelial bEND.3 cell culture media and vascular endothelial growth factor (VEGF) siRNA was loaded in exosomes with the assistance of a transfection reagent. While fluorescence-activated cell flow cytometry and immunocytochemistry staining studies indicated that wild-type exosomes significantly increased the uptake of fluorescence-labeled siRNA in the autologous brain endothelial cells, decreased fluorescence intensity was observed in the cells treated with the tetraspanin CD63 antibody-blocked exosome-delivered formulation (p < 0...
November 23, 2016: AAPS Journal
https://www.readbyqxmd.com/read/27881154/targeted-next-generation-sequencing-identifies-novel-notch3-gene-mutations-in-cadasil-diagnostics-patients
#16
Neven Maksemous, Robert A Smith, Larisa M Haupt, Lyn R Griffiths
BACKGROUND: Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a monogenic, hereditary, small vessel disease of the brain causing stroke and vascular dementia in adults. CADASIL has previously been shown to be caused by varying mutations in the NOTCH3 gene. The disorder is often misdiagnosed due to its significant clinical heterogeneic manifestation with familial hemiplegic migraine and several ataxia disorders as well as the location of the currently identified causative mutations...
November 24, 2016: Human Genomics
https://www.readbyqxmd.com/read/27876618/tlr4-nf-%C3%AE%C2%BAb-ceramide-signaling-contributes-to-ox-ldl-induced-calcification-of-human-vascular-smooth-muscle-cells
#17
Yan Song, Menglin Hou, Zhenlin Li, Chufan Luo, Jing-Song Ou, Huimin Yu, Jianyun Yan, Lihe Lu
Vascular calcification is a major feature of advanced atherosclerosis and highly associated with cardiovascular diseases. Oxidized low density lipoprotein (Ox-LDL) has been recognized as a critical risk factor for atherosclerosis and osteogenic differentiation of vascular smooth muscle cells (VSMCs). Previous studies have demonstrated that toll like receptor 4 (TLR4) is highly expressed in atherosclerotic lesions and participates in the progression of atherosclerosis. However, the role of TLR4 in vascular calcification remains unknown...
November 19, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27876017/increased-wnt5a-in-squamous-cell-lung-carcinoma-inhibits-endothelial-cell-motility
#18
J Rapp, E Kiss, M Meggyes, E Szabo-Meleg, D Feller, G Smuk, T Laszlo, V Sarosi, T F Molnar, K Kvell, J E Pongracz
BACKGROUND: Angiogenesis is important both in normal tissue function and disease and represents a key target in lung cancer (LC) therapy. Unfortunately, the two main subtypes of non-small-cell lung cancers (NSCLC) namely, adenocarcinoma (AC) and squamous cell carcinoma (SCC) respond differently to anti-angiogenic e.g. anti-vascular endothelial growth factor (VEGF)-A treatment with life-threatening side effects, often pulmonary hemorrhage in SCC. The mechanisms behind such adverse reactions are still largely unknown, although peroxisome proliferator activator receptor (PPAR) gamma as well as Wnt-s have been named as molecular regulators of the process...
November 23, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27874975/structural-and-functional-brain-alterations-in-a-murine-model-of-angiotensin-ii-induced-hypertension
#19
Anja Meissner, Jens Minnerup, Guadalupe Soria Rodriguez, Anna M Planas
Hypertension is a main risk factor for the development of cerebral small vessel disease (cSVD) - a major contributor to stroke and the most common cause of vascular dementia. Despite the increasing socio-economic importance arising from cSVD, currently only a few specific treatment strategies with proven efficacy are known. Fundamental to the lack of specific treatments is poor understanding of the disease pathogenesis and a lack of appropriate animal models resembling all symptoms of the human disease. However, chronic hypertensive rat models have been shown to bear similarities to most key features of cSVD...
November 22, 2016: Journal of Neurochemistry
https://www.readbyqxmd.com/read/27872834/factors-associating-with-oxygenation-of-lower-limb-muscle-tissue-in-hemodialysis-patients
#20
Haruhisa Miyazawa, Susumu Ookawara, Kiyonori Ito, Katsunori Yanai, Hiroki Ishii, Taisuke Kitano, Mitsutoshi Shindo, Yuichiro Ueda, Yoshio Kaku, Keiji Hirai, Taro Hoshino, Kaoru Tabei, Yoshiyuki Morishita
AIM: To evaluate the lower-limb muscle oxygenation in hemodialysis (HD) patients and identify the factors associating with muscle oxygenation. METHODS: Sixty-seven HD patients (53 men and 14 women; mean age, 67.1 ± 1.2 years; mean HD duration, 5.6 ± 0.9 years) were recruited. In addition, 15 healthy individuals (nine men and six women; mean age, 38.2 ± 4.6 years) were recruited as the control group. Lower-limb muscle regional saturation of oxygen (rSO2) was monitored on the lateral side of the gastrocnemius muscle before HD using an INVOS 5100C (Covidien Japan, Tokyo, Japan), which utilizes near-infrared spectroscopy...
November 6, 2016: World Journal of Nephrology
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