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Renal clearance

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https://www.readbyqxmd.com/read/28943016/serum-calcium-and-risk-of-sudden-cardiac-arrest-in-the-general-population
#1
Hirad Yarmohammadi, Audrey Uy-Evanado, Kyndaron Reinier, Carmen Rusinaru, Harpriya Chugh, Jonathan Jui, Sumeet S Chugh
OBJECTIVE: To evaluate the potential role of low serum Ca levels in the occurrence of sudden cardiac arrest (SCA) in the community. PATIENTS AND METHODS: We compared 267 SCA cases [177 (66%) men] and 445 controls [314 (71%) men] from a large population-based study (catchment population ∼1 million individuals) in the US Northwest from February 1, 2002, through December 31, 2015. Patients were included if their age was 18 years or older with available creatinine clearance (CrCl) and serum electrolyte levels for analyses to enable adjustment for renal function...
September 19, 2017: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/28937536/enoxaparin-population-pharmacokinetics-in-the-first-year-of-life
#2
Brady S Moffett, Marianne Galati, Donald Mahoney, YoungNa Lee-Kim, Jun Teruya, Mona D Shah, Donald L Yee
Aims Enoxaparin dosing requirements in the first year of life can be highly variable. Characterization of pharmacokinetics in this patient population can assist in dosing. METHODS: Patients less than one year post-natal age who received enoxaparin and had an anti-factor Xa activity level drawn as inpatients were identified through the pharmacy database over a five-year period. Patients on renal replacement therapy or with hyperbilirubinemia were excluded. Data collection included demographic variables, indication for enoxaparin, enoxaparin doses, anti-factor Xa activity levels, serum creatinine, hemoglobin, hematocrit, platelet count, and urine output over the previous 24 hours...
September 19, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28937266/statistical-analysis-of-adcs-and-clinical-biomarkers-in-detecting-acute-renal-transplant-rejection
#3
Elizabeth Hollis, Mohamed Shehata, Mohamed Abou El-Ghar, Mohammed Ghazal, Tarek Eldiasty, Michael Merchant, Andrew E Switala, Ayman El-Baz
OBJECTIVE: To determine which parameters are correlated with transplanted kidney status in patients who have undergone kidney transplantation and can be used for early assessment of acute renal rejection. METHODS: The study included 16 patients with stable renal allografts (Group 1) and 37 patients with rejected allografts (Group 2), determined by renal biopsy post transplantation. All patients' kidneys were evaluated using diffusion-weighted MRI (DW-MRI), in which both clincal and MRI-derived biomarkers were integrated...
September 13, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28936957/-pk-pd-of-vancomycin-in-patients-with-severe-acute-pancreatitis-combined-with-augmented-renal-clearance
#4
Juan He, Enqiang Mao, Feng Jing, Huiting Jiang, Wenyun Xu, Wanhua Yang, Erzhen Chen
OBJECTIVE: To evaluate the serum trough concentration and the pharmacokinetics/pharmacodynamics (PK/PD) of vancomycin in patients with severe acute pancreatitis (SAP), and analyze the effect of vancomycin continuous infusion for optimizing the characteristics of its PK/PD. METHODS: The inhospital patients with SAP received vancomycin treatment and admitted to emergency intensive care unit (EICU) of Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine from January 2011 to December 2016 were enrolled...
September 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28934992/breast-cancer-metastases-to-the-thyroid-gland-an-uncommon-sentinel-for-diffuse-metastatic-disease-a-case-report-and-review-of-the-literature
#5
Agata M Plonczak, Aimee N DiMarco, Roberto Dina, Dorothy J Gujral, Fausto F Palazzo
BACKGROUND: Metastases to the thyroid are rare. The most common primary cancer to metastasize to the thyroid is renal cell carcinoma, followed by malignancies of the gastrointestinal tract, lungs, and skin, with breast cancer metastases to the thyroid being rare. Overall, the outcomes in malignancies that have metastasized to the thyroid are poor. There are no prospective studies addressing the role of surgery in metastatic disease of the thyroid. Isolated thyroidectomy has been proposed as a local disease control option to palliate and prevent the potential morbidity of tumor extension related to the airway...
September 22, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28933183/an-update-on-nanoparticle-based-contrast-agents-in-medical-imaging
#6
Neda Naseri, Elham Ajorlou, Fatemeh Asghari, Younes Pilehvar-Soltanahmadi
Despite the great value of current exogenous contrast agents for providing main diagnostic information, they still have certain drawbacks such as short blood half life, nonspecific biodistribution, fast clearance, slight renal toxicity and poor contrast in fat patients. Nanoparticles (NPs) are used as novel contrast agents that represent a promising strategy for the non invasive diagnosis. As a platform, nanoparticulates are compatible for developing targeted contrast agents. Advances in nanotechnology will provide enhanced sensitivity and specificity for tumor imaging enabling earlier detection of metastases...
September 21, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28932931/usefulness-of-zebrafish-larvae-to-evaluate-drug-induced-functional-and-morphological-renal-tubular-alterations
#7
Rita Gorgulho, Raquel Jacinto, Susana S Lopes, Sofia A Pereira, Erin M Tranfield, Gabriel G Martins, Emilio J Gualda, Rico J E Derks, Ana C Correia, Evelyne Steenvoorden, Petra Pintado, Oleg A Mayboroda, Emilia C Monteiro, Judit Morello
Prediction and management of drug-induced renal injury (DIRI) rely on the knowledge of the mechanisms of drug insult and on the availability of appropriate animal models to explore it. Zebrafish (Danio rerio) offers unique advantages for assessing DIRI because the larval pronephric kidney has a high homology with its human counterpart and it is fully mature at 3.5 days post-fertilization. Herein, we aimed to evaluate the usefulness of zebrafish larvae as a model of renal tubular toxicity through a comprehensive analysis of the renal alterations induced by the lethal concentrations for 10% of the larvae for gentamicin, paracetamol and tenofovir...
September 20, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28928059/garlic-extract-increases-non-clipped-kidney-tubular-natriuresis-and-diuresis-in-the-2-kidney-1-clip-rat-model-significance-in-hypertension
#8
Khaled K Al-Qattan, Martha Thomson, Muslim Ali
BACKGROUND: Angiotensin II (AngII) is a potent modulator of vascular tone and renal clearance function. Raw garlic aqueous extract (RGAE) inhibits angiotensin I converting enzyme (ACE) dipeptidase activity and therefore AngII generation in the 2-kidney, 1-clip rat model (2K-1Cr). OBJECTIVE: This study investigated the effect of RGAE on the non-clipped kidney clearance function and blood pressure (BP) in the 2 K-1Cr. METHOD: 2K-1Cr were anesthetized, cannulated and instrumentalized and the acute effect during the first hour post-administration of a single intravenous dose of RGAE (30mg/100gb...
September 12, 2017: Pathophysiology: the Official Journal of the International Society for Pathophysiology
https://www.readbyqxmd.com/read/28926966/augmented-renal-clearance-in-critical-illness-an-important-consideration-in-drug-dosing
#9
REVIEW
Sherif Hanafy Mahmoud, Chen Shen
Augmented renal clearance (ARC) is a manifestation of enhanced renal function seen in critically ill patients. The use of regular unadjusted doses of renally eliminated drugs in patients with ARC might lead to therapy failure. The purpose of this scoping review was to provide and up-to-date summary of the available evidence pertaining to the phenomenon of ARC. A literature search of databases of available evidence in humans, with no language restriction, was conducted. Databases searched were MEDLINE (1946 to April 2017), EMBASE (1974 to April 2017) and the Cochrane Library (1999 to April 2017)...
September 16, 2017: Pharmaceutics
https://www.readbyqxmd.com/read/28925879/human-fibronectin-extra-domain-b-edb-speci%C3%AF-c-aptide-aptedb-radiolabelling-with-technetium-99m-as-a-potent-targeted-tumour-imaging-agent
#10
Mohsen Mohammadgholi, Nourollah Sadeghzadeh, Mostafa Erfani, Saeid Abediankenari, Seyed Mohammad Abedi, Iman Emrarian, Narjes Jafari, Ramezan Behzadi
BACKGROUND: Human fibronectin extra-domain B (EDB) is particularly expressed during angiogenesis progression. It is, thus, a promising marker of tumour growth. Aptides are a novel class of peptides with high-affinity binding to specific protein targets. APTEDB is an antagonist-like ligand that especially interacts with human fibronectin EDB. OBJECTIVE: This study was the first attempt in which the hydrazinonicotinamide (HYNIC)-conjugated APTEDB was labelled with technetium-99m (99mTc) as an appropriate radiotracer and tricine/EDDA exchange labeling ...
September 18, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28924378/vasopressin-mediates-the-renal-damage-induced-by-limited-fructose-rehydration-in-recurrently-dehydrated-rats
#11
Fernando E García-Arroyo, Edilia Tapia, Mónica G Blas-Marron, Guillermo Gonzaga, Octaviano Silverio, Magdalena Cristóbal, Horacio Osorio, Abraham S Arellano-Buendía, Cecilia Zazueta, Omar Emiliano Aparicio-Trejo, Juan G Reyes-García, José Pedraza-Chaverri, Virgilia Soto, Carlos Roncal-Jiménez, Richard J Johnson, Laura G Sánchez-Lozada
Recurrent dehydration and heat stress cause chronic kidney damage in experimental animals. The injury is exacerbated by rehydration with fructose-containing beverages. Fructose may amplify dehydration-induced injury by directly stimulating vasopressin release and also by acting as a substrate for the aldose reductase-fructokinase pathway, as both of these systems are active during dehydration. The role of vasopressin in heat stress associated injury has not to date been explored. Here we show that the amplification of renal damage mediated by fructose in thermal dehydration is mediated by vasopressin...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28924104/validation-of-the-r2chads2-and-chads2-scores-for-predicting-post-stroke-cognitive-impairment
#12
Kazuo Washida, Hisatomo Kowa, Hirotoshi Hamaguchi, Fumio Kanda, Tatsushi Toda
Objective Post-stroke cognitive impairment often afflicts stroke survivors and is a major obstacle both for cognitive and physical rehabilitation. Stroke risk scores ["Congestive heart failure, Hypertension, Age ≥75 years, Diabetes mellitus, Stroke" (CHADS2) and "CHADS2 + creatinine clearance <60 mL/min" (R2CHADS2)] are used to assess the future risk of cardioembolic stroke in patients with atrial fibrillation (AF). However, congestive heart failure, hypertension, aging, diabetes mellitus, stroke, and renal dysfunction are also risk factors for cognitive impairment...
September 15, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28919990/pharmacological-targeting-of-peptidylarginine-deiminase-4-prevents-cancer-associated-kidney-injury-in-mice
#13
Jessica Cedervall, Anca Dragomir, Falk Saupe, Yanyu Zhang, Johan Ärnlöv, Erik Larsson, Anna Dimberg, Anders Larsson, Anna-Karin Olsson
Renal insufficiency is a frequent cancer-associated problem affecting more than half of all cancer patients at the time of diagnosis. To minimize nephrotoxic effects the dosage of anticancer drugs are reduced in these patients, leading to sub-optimal treatment efficacy. Despite the severity of this cancer-associated pathology, the molecular mechanisms, as well as therapeutic options, are still largely lacking. We here show that formation of intravascular tumor-induced neutrophil extracellular traps (NETs) is a cause of kidney injury in tumor-bearing mice...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28919557/synergistic-effects-of-dendritic-cell-targeting-and-laser-microporation-on-enhancing-epicutaneous-skin-vaccination-efficacy
#14
Yoan Machado, Sanne Duinkerken, Veronika Hoepflinger, Melissa Mayr, Evgeniia Korotchenko, Almedina Kurtaj, Isabel Pablos, Markus Steiner, Angelika Stoecklinger, Joyce Lübbers, Maximillian Schmid, Uwe Ritter, Sandra Scheiblhofer, Michael Ablinger, Verena Wally, Sarah Hochmann, Anna M Raninger, Dirk Strunk, Yvette van Kooyk, Josef Thalhamer, Richard Weiss
Due to its unique immunological properties, the skin is an attractive target tissue for allergen-specific immunotherapy. In our current work, we combined a dendritic cell targeting approach with epicutaneous immunization using an ablative fractional laser to generate defined micropores in the upper layers of the skin. By coupling the major birch pollen allergen Bet v 1 to mannan from S. cerevisiae via mild periodate oxidation we generated hypoallergenic Bet-mannan neoglycoconjugates, which efficiently targeted CD14+ dendritic cells and Langerhans cells in human skin explants...
September 14, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28918954/contemporary-management-of-vesicoureteral-reflux
#15
REVIEW
Perviz Hajiyev, Berk Burgu
CONTEXT: Vesicoureteral reflux (VUR) remains the most interesting topic of pediatric urology due to the dynamic nature of recent controversial publications. Starting from the need for a diagnosis to the necessity and effectiveness of treatment in preventing scars, VUR remains in the mist. Although recent strong evidence helped as fog lights in this blurriness, more data are required for achieving crystal clearance. This article aims to summarize and discuss the current state of the evidence regarding VUR management...
September 11, 2017: European Urology Focus
https://www.readbyqxmd.com/read/28915690/efficacy-and-safety-of-a-reduced-calcineurin-inhibitor-dose-combined-with-mycophenolate-mofetil-in-liver-transplant-patients-with-chronic-renal-dysfunction
#16
Pusen Wang, Weitao Que, Hao Li, Lvnan Yan, Zhiren Fu, Qifa Ye, Guihua Chen, Kefeng Dou, Shichun Lu, Zhanyu Yang, Zhijun Zhu, Zhihai Peng, Lin Zhong
Calcineurin inhibitors (CNIs) are frequently given at a reduced dose in combination with mycophenolate mofetil (MMF) to avoid nephrotoxicity, but the optimal reduction in CNI dose has not been established. In this prospective, open-label, multicenter study, liver transplant recipients with chronic renal dysfunction who were administered a CNI-based immunosuppressive regimen were included in the intent-to-treat (ITT) population. The primary endpoint was declination in renal function, which was defined as a ≥ 20% decrease in the glomerular filtration rate during the year following regimen adjustment...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28914202/statins-and-contrast-induced-nephropathy-a-systematic-review-and-meta-analysis
#17
Alexandros Briasoulis, Mohan Pala, Tesfaye Telila, Obsinet Merid, Emmanuel Akintoye, Georgia Vogiatzi, Evangelos Oikonomou, Dimitris Tousoulis
Contrast-induced nephropathy (CIN) is a type of acute kidney injury associated with intravascular administration of iodinated contrast, usually reversible. Contrast agents are an essential component of invasive and noninvasive coronary angiography. These agents have been modified over time to enhance patient safety and tolerability, but adverse reactions still occur. CIN has been variably defined, as a rise in serum creatinine of 0.5 mg/dl, or a 25% increase in serum creatinine above baseline within 24-72 hours after the procedure...
September 13, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28910798/expanded-hemodialysis-therapy-prescription-and-delivery
#18
Nils Heyne
Expanded hemodialysis (HDx) therapy is a novel treatment concept in hemodialysis patients, using innovative membrane technology with a high retention onset for improved solute clearance in the upper middle molecular range. HDx therapy thereby resolves a key limitation of current hemodialysis techniques and targets an important pathophysiologic link to many of the sequelae of end-stage renal disease. The present chapter reviews the current evidence and discusses considerations for prescription and delivery of HDx therapy upon implementation in clinical practice...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28910789/end-stage-renal-disease-inflammation-and-cardiovascular-outcomes
#19
Lu Dai, Edyta Golembiewska, Bengt Lindholm, Peter Stenvinkel
Despite marked improvements in renal replacement therapy during the last 30 years, the age-adjusted mortality rate in end-stage renal disease (ESRD) patients is still unacceptably high and comparable to that of many malignancies. Cardiovascular disease (CVD) remains the major cause of morbidity and mortality in ESRD patients. However, traditional risk factors can only partially explain the high premature cardiovascular burden in this population. Nontraditional risk factors, including persistent low-grade inflammation, are critical in the pathogenesis of atherosclerosis, vascular calcification, and other causes of CVD and may also contribute to protein-energy wasting and other complications in chronic kidney disease (CKD) patients...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28910786/the-evolving-patterns-of-uremia-unmet-clinical-needs-in-dialysis
#20
Xueqing Yu
End-stage renal disease (ESRD) has become a challenging health problem worldwide. Currently, ESRD patients treated with hemodialysis mainly undergo low-flux hemodialysis, high-flux hemodialysis (HF-HD), or hemodiafiltration (HDF). The clearance of middle and large molecules is, however, quite insufficient as regards HF-HD, HDF, and on-line HDF. An unsatisfactory prognosis has led to improved dialysis technology and materials; both protein-leaking membranes and high cut-off membranes increase the clearance of uremic toxin, but in clinical application they may induce albumin loss...
2017: Contributions to Nephrology
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