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https://www.readbyqxmd.com/read/27888551/selective-targeting-of-high-affinity-lfa-1-does-not-augment-costimulation-blockade-in-a-nonhuman-primate-renal-transplantation-model
#1
K P Samy, D A Anderson, D J Lo, M S Mulvihill, M Song, A B Farris, B S Parker, A L MacDonald, C Lu, T A Springer, S C Kachlany, K A Reimann, T How, F V Leopardi, K S Franke, K D Williams, B H Collins, A D Kirk
Costimulation blockade (CoB) via belatacept is a lower morbidity alternative to calcineurin inhibitor (CNI)-based immunosuppression. However, it has higher rates of early acute rejection. These early rejections are mediated in part by memory T cells, which have reduced dependence on the pathway targeted by belatacept, and increased adhesion molecule expression. One such molecule is Leukocyte Function Associated Antigen (LFA)-1. LFA-1 exists in two forms, a commonly expressed, low-affinity form, and a transient, high-affinity form, expressed only during activation...
November 26, 2016: American Journal of Transplantation
https://www.readbyqxmd.com/read/27869328/real-life-efficacy-and-safety-of-paritaprevir-ritonavir-ombitasvir-and-dasabuvir-in-chronic-hepatitis-c-patients-in-hong-kong
#2
Henry Lik-Yuen Chan, Owen Tak-Yin Tsang, Yee-Tak Hui, James Fung, Grace Chung-Yan Lui, Ching-Lung Lai, Grace Lai-Hung Wong, Kam-Hon Chan, David Yiu-Kuen But, Moon-Sing Lai, Wai-Cheung Lao, Carmen Ka-Man Chan, Yip-Shun Lam, Wai-Kay Seto, Carlton Li, Man-Fung Yuen, Vincent Wai-Sun Wong
BACKGROUND AND AIM: In registration studies, combination therapy of paritaprevir/ritonavir, ombitasvir and dasabuvir (PrOD) with and without ribavirin for 12-24 weeks can achieve >90% sustained virological response (SVR) for genotype 1 hepatitis C virus (HCV) infection. However, data in Asia is scanty. We aimed to study the efficacy and safety of this combination therapy in chronic hepatitis C patients in Hong Kong. METHODS: We retrospectively analyzed data from 6 local hospitals which have prescribed PrOD with and without ribavirin to patients with genotype 1 chronic HCV infection as part of a global compassionate program...
November 21, 2016: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/27867530/continuous-renal-replacement-therapy-for-haemodynamic-collapse-and-rhabdomyolysis-induced-by-pheochromocytoma-crisis
#3
Xi Zhou, Chuhuan Zhao, Xiafei Feng, Anweshan Samanta, Yi Nuo Lin, Jun Chen, Xiaochun Dai, Xia Hong, Qiangli Xie, Weijian Huang
Pheochromocytoma associated with pregnancy is not common. Caesarean section may induce pheochromocytoma crisis, resulting in a lethal condition. The clinical picture of pheochromocytoma crisis is extremely variable. In this report, we describe a case of severe pheochromocytoma crisis induced by caesarean section presenting with hyperpyrexia, haemodynamic collapse, muscle weakness, heart failure, and acute kidney injury. Furthermore, we report that the muscle weakness was a manifestation of rhabdomyolysis, resulting from the pheochromocytoma crisis...
December 2016: ESC Heart Failure
https://www.readbyqxmd.com/read/27783835/percutaneous-acetabuloplasty-for-metastatic-lesions-to-the-pelvis
#4
Ryan A Durfee, Scott A Sabo, G Douglas Letson, Odion Binitie, David Cheong
Metastatic lesions of the acetabulum can be painful and debilitating. First-line treatment is multimodal and consists of disease-specific chemotherapy, osteoclastic inhibitors, analgesics, and radiation therapy. When these therapies fail, surgical intervention usually is indicated and varies from regional defect stabilization to large periacetabular reconstructions that are demanding procedures with high rates of complications. Percutaneous cement augmentation (acetabuloplasty) of lesions in selected patients has been explored as a less invasive method of lesional control...
October 25, 2016: Orthopedics
https://www.readbyqxmd.com/read/27742385/costimulatory-blockade-and-use-of-mtor-inhibitors-avoiding-injury-part-2
#5
David Wojciechowski, Flavio Vincenti
Kidney transplantation immunosuppression relies on a calcineurin inhibitor backbone. Calcineurin inhibitors have reduced early-acute rejection rates but failed to improve long-term allograft survival. Their nephrotoxicity has shifted the focus of investigation to calcineurin inhibitor-free regimens. Costimulation blockade with belatacept, a second generation, higher avidity variant of CTLA4-Ig, has emerged as part of a calcineurin inhibitor-free regimen. Belatacept has demonstrated superior glomerular filtration rate compared with calcineurin inhibitors albeit with an increased risk of early and histologically severe rejection...
September 2016: Advances in Chronic Kidney Disease
https://www.readbyqxmd.com/read/27742346/a-single-center-experience-of-allograft-nephrectomies-following-kidney-transplantation
#6
F Toth, G Zadori, R Fedor, L Illesy, M Szabo-Pap, Z Kanyari, D A Kovacs, L Asztalos, B Nemes
INTRODUCTION: Approximately 10% of renal allografts fail during the first year after kidney transplantation (KT) and 3%-5% thereafter yearly. The indication and timing of allograft nephrectomy (AN) is still uncertain in some cases. The aim of this study was to reveal the ratio, etiology, and complications of AN at our center. MATERIAL AND METHODS: This is a retrospective study of all patients who underwent KT at our center between January 1, 2004 and December 31, 2014...
September 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27727514/serelaxin-in-acute-heart-failure-most-recent-update-on-clinical-and-preclinical-evidence
#7
Raktim Kumar Ghosh, Kinjal Banerjee, Ramyashree Tummala, Somedeb Ball, Keyvan Ravakhah, Anjan Gupta
Heart failure continues to be a widely prevalent disease across the world, affecting millions of Americans annually. Acute heart failure (AHF) has a substantial effect on rising health care costs and one of the major causes of morbidity and mortality. The search for new drugs for symptom relief and to improve long term outcomes in heart failure has led to development of serelaxin, a recombinant human relaxin-2 hormone. Relaxin was discovered in pregnancy but eventually found to have a number of other physiological actions, not only in pregnancy, but also in non-pregnant women and men...
October 11, 2016: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/27685848/fluid-composition-and-acute-kidney-injury
#8
Fernando G Zampieri, Alexandre B Libório, Alexandre B Cavalcanti
PURPOSE OF REVIEW: To describe recent advances in the understanding of the role of fluid composition in renal outcomes in critically ill patients. RECENT FINDINGS: The debate on fluid composition is now focused in a pragmatic discussion on fluid electrolyte composition. The resurgence of this debate was propelled by several observational studies that suggested that balanced (i.e., low chloride) solutions were associated with less acute kidney injury in critically ill patients...
December 2016: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/27669547/role-of-isolated-ultrafiltration-in-the-management-of-chronic-refractory-and-acute-decompensated-heart-failure
#9
Mayank K Mittal, Natraj Katta, Martin A Alpert
Chronic congestive heart failure (CHF) and acute decompensated heart failure (ADHF) refractory to medical therapy represent therapeutic challenges. In such patients, attempts to reduce pulmonary and systemic congestion frequently produce deterioration of renal function. In studies of patients with chronic severe CHF refractory to medical therapy (including loop diuretics), isolated ultrafiltration was frequently able to relieve congestive symptoms by precise removal of extracellular water and sodium, and in some cases was able to restore responsiveness to loop diuretics...
October 2016: Hemodialysis International
https://www.readbyqxmd.com/read/27647685/acute-west-nile-virus-meningoencephalitis-diagnosed-via-metagenomic-deep-sequencing-of-cerebrospinal-fluid-in-a-renal-transplant-patient
#10
M R Wilson, L L Zimmermann, E D Crawford, H A Sample, P R Soni, A N Baker, L M Khan, J L DeRisi
Solid organ transplant patients are vulnerable to suffering neurologic complications from a wide array of viral infections and can be sentinels in the population who are first to get serious complications from emerging infections like the recent waves of arboviruses, including West Nile virus, Chikungunya virus, Zika virus, and Dengue virus. The diverse and rapidly changing landscape of possible causes of viral encephalitis poses great challenges for traditional candidate-based infectious disease diagnostics that already fail to identify a causative pathogen in approximately 50% of encephalitis cases...
September 20, 2016: American Journal of Transplantation
https://www.readbyqxmd.com/read/27623348/long-term-outcome-after-early-cyclosporine-withdrawal-in-kidney-transplantation-ten-years-after
#11
Nahid Tabibzadeh, François Glowacki, Marie Frimat, Vincent Elsermans, François Provôt, Arnaud Lionet, Viviane Gnemmi, Alexandre Hertig, Christian Noël, Marc Hazzan
BACKGROUND: Despite long-term side effects, calcineurin inhibitors (CNI) remain a cornerstone of immunosuppression in renal transplantation. Few trials assessed the long-term outcome after early CNI withdrawal. METHODS: This intention-to-treat study assessed the 10-year outcome of 108 patients randomly converted from a cyclosporine (CsA)-mycophenolate mofetil (MMF)-prednisone regimen to a dual therapy (CsA-prednisone or MMF-prednisone) at 3 months postgraft. RESULTS: At 10 years, 3...
September 13, 2016: Clinical Transplantation
https://www.readbyqxmd.com/read/27594660/pharmacological-and-interventional-management-of-pain-after-whiplash-injury
#12
Michele Curatolo
Synopsis Whiplash-associated disorder (WAD) is a group of symptoms and clinical manifestations resulting from rear-end or side impact. Despite the wide use of medications in WAD, the published research does not allow recommendations based on high evidence level. It may be meaningful to use nonsteroidal anti-inflammatory drugs in the acute posttraumatic phase. In chronic WAD, the use of nonsteroidal anti-inflammatory drugs is more concerning due to potential gastrointestinal and renal complications with prolonged use and lack of evidence for long-term benefits...
October 2016: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/27591740/a-kidney-injury-molecule-1-kim-1-gene-reporter-in-a-mouse-artificial-chromosome-the-responsiveness-to-cisplatin-toxicity-in-immortalized-mouse-kidney-s3-cells
#13
Kenji Kokura, Yasushi Kuromi, Takeshi Endo, Naohiko Anzai, Yasuhiro Kazuki, Mitsuo Oshimura, Tetsuya Ohbayashi
BACKGROUND: Kidney injury molecule-1 (Kim-1) has been validated as a urinary biomarker for acute and chronic renal damage. The expression of Kim-1 mRNA is also activated by acute kidney injury induced by cisplatin in rodents and humans. To date, the measurement of Kim-1 expression has not fully allowed the detection of in vitro cisplatin nephrotoxicity in immortalized culture cells such as human kidney-2 cells and immortalized proximal tubular epithelial cells. METHODS: We measured the augmentation of Kim-1 mRNA expression after cisplatin addition using immortalized S3 cells established from the kidneys of transgenic mice harboring temperature-sensitive large T antigen from Simian virus 40...
September 3, 2016: Journal of Gene Medicine
https://www.readbyqxmd.com/read/27575558/timing-is-everything-reconciling-the-results-of-recent-trials-in-acute-kidney-injury
#14
Christina M Wyatt, Steven G Coca
Observational studies have failed to establish the optimal timing of renal replacement therapy in critically ill adults with acute kidney injury, with some studies suggesting benefit and others suggesting the potential for harm with earlier initiation. Two recent randomized trials have addressed this controversy, also with conflicting results. Careful consideration of differences between the 2 studies is essential when applying the results to clinical practice in the intensive care unit.
October 2016: Kidney International
https://www.readbyqxmd.com/read/27574383/safety-and-effectiveness-of-closure-devices-applied-to-a-stented-common-femoral-artery-a-retrospective-analysis
#15
Nicolas W Shammas, Gail A Shammas, Thomas Harris, Cara M Voelliger, Andrew N Shammas, Michael Jerin
Bailout stenting of the common femoral artery (CFA) may become necessary with failed balloon angioplasty or atherectomy or in case of bleeding requiring a covered stent over the arteriotomy site. Reaccessing the CFA through a previously placed stent may occur during angiography. The safety and effectiveness of applying a closure device, or manual compression to achieve hemostasis through an accessed stented CFA are unknown. All patients in our practice that underwent CFA stenting were identified using billing records for 3 years (January 1, 2010-February 28, 2013)...
September 2016: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/27557097/oral-supplementation-of-glucosamine-fails-to-alleviate-acute-kidney-injury-in-renal-ischemia-reperfusion-damage
#16
Marc Johnsen, Martin Richard Späth, Martin S Denzel, Heike Göbel, Torsten Kubacki, Karla Johanna Ruth Hoyer, Yvonne Hinze, Thomas Benzing, Bernhard Schermer, Adam Antebi, Volker Burst, Roman-Ulrich Müller
Acute kidney injury is a leading contributor to morbidity and mortality in the ageing population. Proteotoxic stress response pathways have been suggested to contribute to the development of acute renal injury. Recent evidence suggests that increased synthesis of N-glycan precursors in the hexosamine pathway as well as feeding of animals with aminosugars produced in the hexosamine pathway may increase stress resistance through reducing proteotoxic stress and alleviate pathology in model organisms. As feeding of the hexosamine pathway metabolite glucosamine to aged mice increased their life expectancy we tested whether supplementation of this aminosugar may also protect mice from acute kidney injury after renal ischemia and reperfusion...
2016: PloS One
https://www.readbyqxmd.com/read/27554236/high-postoperative-blood-pressure-after-cardiac-surgery-is-associated-with-acute-kidney-injury-and-death
#17
Felix Balzer, Solomon Aronson, Jason A Campagna, Li Ding, Sascha Treskatsch, Claudia Spies, Michael Sander
OBJECTIVES: Gaps and uncertainty exist regarding the understanding of optimal clinical goals for perioperative (ie, preoperative, intraoperative, and postoperative) blood pressure (BP) management in patients undergoing cardiac surgery and the consequences of achieving or failing to achieve those goals. In this setting, it is understood that preoperative hypertension is predictive of poor postoperative outcomes, with a growing appreciation that current, clinically acceptable changes in intraoperative BP also may be associated independently with adverse short- and long-term outcomes...
December 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/27552162/thromboelastography-teg-or-thromboelastometry-rotem-to-monitor-haemostatic-treatment-versus-usual-care-in-adults-or-children-with-bleeding
#18
REVIEW
Anne Wikkelsø, Jørn Wetterslev, Ann Merete Møller, Arash Afshari
BACKGROUND: Severe bleeding and coagulopathy are serious clinical conditions that are associated with high mortality. Thromboelastography (TEG) and thromboelastometry (ROTEM) are increasingly used to guide transfusion strategy but their roles remain disputed. This review was first published in 2011 and updated in January 2016. OBJECTIVES: We assessed the benefits and harms of thromboelastography (TEG)-guided or thromboelastometry (ROTEM)-guided transfusion in adults and children with bleeding...
August 22, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27517137/current-status-of-costimulatory-blockade-in-renal-transplantation
#19
David Wojciechowski, Flavio Vincenti
PURPOSE OF REVIEW: The review will focus on the impact and current status of costimulatory blockade in renal transplantation. RECENT FINDINGS: The mainstay of immunosuppression in kidney transplantation is calcineurin inhibitors (CNIs) which have reduced acute rejection rates but failed to improve long-term allograft survival. Their cardiometabolic side-effects and nephrotoxicity have shifted the focus of investigation to CNI-free regimens. Costimulation blockade with belatacept, a second generation, higher avidity variant of cytotoxic T-lymphocyte associated protein 4 has emerged as part of a CNI-free regimen...
November 2016: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/27488999/renal-phenotype-in-bardet-biedl-syndrome-a-combined-defect-of-urinary-concentration-and-dilution-is-associated-with-defective-urinary-aqp2-and-umod-excretion
#20
Miriam Zacchia, Enza Zacchia, Enrica Zona, Giovanna Capolongo, Ilaria Raiola, Luca Rinaldi, Francesco Trepiccione, Diego Ingrosso, Alessandra Perna, Valentina Di Iorio, Francesca Simonelli, Orson W Moe, Giovambattista Capasso
The renal phenotype in Bardet-Biedl syndrome (BBS) is highly variable. The present study describes renal findings in 41 BBS patients and analyzes the pathogenesis of hyposthenuria, the most common renal dysfunction. Five of 41 patients (12%) showed an estimated glomerular filtration rate < 60 ml·min(-1)·1.73 m(-2) Urine protein and urine albumin-to-creatinine ratio were over 200 and 30 mg/g in 9/24 and 7/23 patients, respectively. Four of 41 patients showed no renal anomalies on ultrasound. Twenty of 34 patients had hyposthenuria in the absence of renal insufficiency...
October 1, 2016: American Journal of Physiology. Renal Physiology
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