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https://www.readbyqxmd.com/read/28807212/comparison-of-normothermic-and-hypothermic-perfusion-in-porcine-kidneys-donated-after-cardiac-death
#1
Matthew F Blum, Qiang Liu, Basem Soliman, Paul Dreher, Toshihiro Okamoto, Emilio D Poggio, David A Goldfarb, William M Baldwin, Cristiano Quintini
BACKGROUND: Normothermic machine perfusion (NMP) is an alternative strategy for preserving kidneys donated after cardiac death (DCD). The relative efficacy of prolonged NMP compared to hypothermic machine perfusion (HMP) in DCD kidneys with moderate ischemic injury is undetermined. This study compares NMP and HMP kidney preservation in a porcine DCD model. METHODS: Ten porcine kidneys underwent NMP or HMP preservation following 45 minutes of warm ischemia and 5 hours of cold ischemia...
August 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28803798/radiosynthesis-and-preclinical-pet-evaluation-of-89-zr-nivolumab-bms-936558-in-healthy-non-human-primates
#2
Erin L Cole, Joonyoung Kim, David J Donnelly, R Adam Smith, Daniel Cohen, Virginie Lafont, Paul E Morin, Richard Y-C Huang, Patrick L Chow, Wendy Hayes, Samuel Bonacorsi
Cancer immunotherapy, unlike traditional cytotoxic chemotherapeutic treatments, engages the immune system to identify cancer cells and stimulate immune responses. The Programmed Death-1 (PD-1) protein is an immunoinhibitory receptor expressed by activated cytotoxic T-lymphocytes (CTL) that seek out and destroy cancer cells. Multiple cancer types express and upregulate the Programmed Death-Ligand 1 (PD-L1) and 2 (PD-L2) which bind to PD-1 as an immune escape mechanism. Nivolumab is a fully human IgG4 anti-PD-1 monoclonal antibody (mAb) approved for treatment of multiple cancer types...
August 4, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28802734/adding-markers-of-organ-damage-to-risk-score-models-improves-cardiovascular-risk-assessment-prospective-analysis-of-a-large-cohort-of-adult-outpatients
#3
Giuliano Tocci, Ilaria Figliuzzi, Vivianne Presta, Nadia Attalla El Halabieh, Barbara Citoni, Roberta Coluccia, Allegra Battistoni, Andrea Ferrucci, Massimo Volpe
INTRODUCTION: Global cardiovascular (CV) risk stratification is recommended in all outpatients. Risk score charts, however, do not include markers of organ damage (OD). AIM: To evaluate the potential added value of including different markers of subclinical OD to US Framingham, European SCORE and Italian Cuore risk score calculators. METHODS: We prospectively evaluated adult outpatients, who underwent blood pressure (BP) assessment and global CV risk stratification...
July 25, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28801211/parkin-clearance-of-dysfunctional-mitochondria-regulates-ros-levels-and-increases-survival-of-human-chondrocytes
#4
Mohammad Y Ansari, Nazir M Khan, Imran Ahmad, Tariq M Haqqi
OBJECTIVE: Mitochondrial dysfunction, oxidative stress and chondrocyte death are important contributors to the development and pathogenesis of osteoarthritis (OA). In this study, we determined the expression and role of Parkin in the clearance of damaged/dysfunctional mitochondria, regulation of ROS levels and chondrocyte survival under pathological conditions. METHODS: Human chondrocytes were from the unaffected area of knee OA cartilage (n=12) and were stimulated with IL-1β to mimic pathological conditions...
August 8, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28800735/life-span-of-in-vitro-differentiated-plasmodium-falciparum-gametocytes
#5
Tamirat Gebru, Albert Lalremruata, Peter G Kremsner, Benjamin Mordmüller, Jana Held
BACKGROUND: The sexual stages (gametocytes) of Plasmodium falciparum do not directly contribute to the pathology of malaria but are essential for transmission of the parasite from the human host to the mosquito. Mature gametocytes circulate in infected human blood for several days and their circulation time has been modelled mathematically from data of previous in vivo studies. This is the first time that longevity of gametocytes is studied experimentally in vitro. METHODS: The in vitro longevity of P...
August 11, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28796562/loss-of-endothelial-planar-cell-polarity-and-cellular-clearance-mechanisms-in-age-related-macular-degeneration
#6
Maria Mercedes Campos, Mones S Abu-Asab
Apoptosis, autophagosomes, and lysosomes are lacking in the retinal pigment epithelium (RPE) of age-related macular degeneration (AMD) eyes. Necrosis, not apoptosis, appeared to be the prominent type of cell death in RPE, which led to the accumulation of cell debris within and on both sides of Bruch's membrane. The endothelium of the choriocapillaris had an altered planar cell polarity which encompassed the disappearance of fenestrations, the thickening of cytoplasm, and anterior nuclear dislocation. There were no significant differences in RPE and choroidal aberrations between macular and temporal regions...
August 10, 2017: Ultrastructural Pathology
https://www.readbyqxmd.com/read/28795667/-predictive-value-of-sofa-qsofa-score-and-traditional-evaluation-index-on-sepsis-prognosis
#7
Ying Wang, Difen Wang, Jiangquan Fu, Ying Liu
OBJECTIVE: Assess the value of several biomarkers and disease severity scores for the prognostic assessment of sepsis. METHODS: The clinical data of adult patients, who met the diagnostic criteria for Sepsis-3 and admitted to the intensive care unit (ICU) of Affiliated Hospital of Guizhou Medical University from January 2015 to December 2016 were retrospectively analyzed. These patients were divided into survival group and death group. The levels of serum lactate (Lac), lactate clearance rate of 24 hours later (24 h LCR), procalcitonin (PCT), quick sequential organ failure assessment (qSOFA) score, SOFA score, simplified acute physiology score II (SAPS II), acute physiology and chronic health evaluation scoring system II (APACHE II) score were determined, and the receiver operating characteristic curve (ROC) were used to analyze the prognostic value of the indicators above...
August 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28783659/pd-1-blockade-it-s-what-s-for-dinner
#8
Gabriel K Griffin
Tumor-associated macrophages limit the efficacy of programmed cell death 1 (PD-1) blockade through an FcγR-dependent clearance mechanism.
June 2, 2017: Science Immunology
https://www.readbyqxmd.com/read/28780496/fifteen-minute-consultation-a-structured-approach-to-the-management-of-chronic-cough-in-a-child
#9
Cherry Alviani, Gary Ruiz, Atul Gupta
Coughing is a primary pulmonary defence mechanism that enhances clearance of secretions and particles from the airways and protects against aspiration of foreign materials. Coughing may affect 30% of children at any given time (1). Many are healthy children but some may have serious underlying disease. Childhood cough accounts for a large number of consultations and 80% of families who are referred to a paediatric respiratory clinic for chronic cough have sought medical advice five times or more (2). The majority of childhood coughs are secondary to an acute respiratory tract infection and will improve once the infection resolves, usually within 1 to 3 weeks...
August 5, 2017: Archives of Disease in Childhood. Education and Practice Edition
https://www.readbyqxmd.com/read/28777392/long-term-follow-up-of-continuous-flow-left-ventricular-assist-devices-complications-and-predisposing-risk-factors
#10
Tolulope A Adesiyun, Rhondalyn C McLean, Ryan J Tedford, Glenn J R Whitman, Chris M Sciortino, John V Conte, Ashish S Shah, Stuart D Russell
PURPOSE: To assess LVAD complications and their overall effect on mortality and determine factors associated with development of early and long-term complications. METHODS: A retrospective cohort study of patients who underwent continuous flow LVAD placement between January 1, 2000 and November 30, 2013 was performed. The incidence of complications (sepsis or bacteremia, driveline infections, gastrointestinal bleeding, pump thrombosis, cerebrovascular accidents and anemia requiring transfusion) was collected and logistic regression and Cox proportional hazards analyses were performed...
August 2, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28769806/a-red-blood-cell-membrane-camouflaged-nanoparticle-counteracts-streptolysin-o-mediated-virulence-phenotypes-of-invasive-group-a-streptococcus
#11
Tamara Escajadillo, Joshua Olson, Brian T Luk, Liangfang Zhang, Victor Nizet
Group A Streptococcus (GAS), an important human-specific Gram-positive bacterial pathogen, is associated with a broad spectrum of disease, ranging from mild superficial infections such as pharyngitis and impetigo, to serious invasive infections including necrotizing fasciitis and streptococcal toxic shock syndrome. The GAS pore-forming streptolysin O (SLO) is a well characterized virulence factor produced by nearly all GAS clinical isolates. High level expression of SLO is epidemiologically linked to intercontinental dissemination of hypervirulent clonotypes and poor clinical outcomes...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28769762/loss-of-irf2bp2-in-microglia-increases-inflammation-and-functional-deficits-after-focal-ischemic-brain-injury
#12
Shelly A Cruz, Aswin Hari, Zhaohong Qin, Pascal Couture, Hua Huang, Diane C Lagace, Alexandre F R Stewart, Hsiao-Huei Chen
Ischemic stroke causes neuronal cell death and triggers a cascade of inflammatory signals that contribute to secondary brain damage. Microglia, the brain-resident macrophages that remove dead neurons, play a critical role in the brain's response to ischemic injury. Our previous studies showed that IRF2 binding protein 2 (IRF2BP2) regulates peripheral macrophage polarization, limits their inflammatory response and reduces susceptibility to atherosclerosis. Here, we show that loss of IRF2BP2 in microglia leads to increased inflammatory cytokine expression in response to lipopolysaccharide challenge and impaired activation of anti-inflammatory markers in response to interleukin-4 (IL4) stimulation...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28768566/dead-cell-phagocytosis-and-innate-immune-checkpoint
#13
Kyoung Wan Yoon
Human body are losing several billions of cells every day. When cells are dying in vivo, the corpse of dead cell are not remained uncleared. Dead cells are efficiently recognized and cleared by multiple types of neighboring phagocytes. In the initial researches studying cell death, molecular mechanisms regulating cell death are more focused and the end corpse are simply considered as cellular debris. However, it has been revealed that various biological influences after cell death are important for the followed immune regulations...
August 3, 2017: BMB Reports
https://www.readbyqxmd.com/read/28766263/a-phase-ii-study-of-combination-therapy-with-oral-s-1-and-cisplatin-in-elderly-patients-with-advanced-gastric-cancer
#14
Yusuke Sasaki, Satoru Iwasa, Shunsuke Okazaki, Masahiro Goto, Yasushi Kojima, Atsushi Naganuma, Kengo Nagashima, Yushi Nagai, Hidekazu Hirano, Yoshitaka Honma, Atsuo Takashima, Ken Kato, Tetsuya Hamaguchi
BACKGROUND: A combination of S-1 and cisplatin is recognized as one of the standard first-line chemotherapy regimens for patients with advanced gastric cancer. However, demographic analyses of pivotal phase III studies have showed that only a minority of treated patients were aged 76 years or older. The purpose of this phase II study was to evaluate the safety and efficacy of combination therapy with S-1 and cisplatin in elderly patients with chemotherapy-naive advanced gastric cancer...
August 1, 2017: Gastric Cancer
https://www.readbyqxmd.com/read/28765688/impact-of-hepatitis-c-oral-therapy-in-portal-hypertension
#15
EDITORIAL
Diogo Libânio, Rui Tato Marinho
Chronic hepatitis C is a leading cause of morbidity and mortality, mainly related to fibrosis/cirrhosis and portal hypertension. Direct antiviral agents are highly effective and safe and can now cure > 90% of the patients. Sustained viral response (SVR) after interferon-based regimens has been associated with improvement in liver function, fibrosis and portal hypertension in a significant proportion of patients, although a point of no return seems to exist from which viral elimination is no longer capable of preventing portal hypertension progression and liver decompensation...
July 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28761233/measured-glomerular-filtration-rate-at-dialysis-initiation-and-clinical-outcomes-of-indian-peritoneal-dialysis-patients
#16
N Prasad, M R Patel, A Chandra, D Rangaswamy, A Sinha, D Bhadauria, R K Sharma, A Kaul, A Gupta
The optimal time for dialysis initiation remains controversial. Studies have failed to show better outcomes with early initiation of hemodialysis; even a few had shown increased adverse outcomes including poorer survival. Few studies have examined the same in patients on peritoneal dialysis (PD). Measured glomerular filtration rate (mGFR) not creatinine-based estimated GFR is recommended as the measure of kidney function in end-stage renal disease (ESRD) patients. The objective of this observational study was to compare the outcomes of Indian patients initiated on PD with different residual renal function (RRF) as measured by 24-h urinary clearance method...
July 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28754872/tunicamycin-induced-endoplasmic-reticulum-stress-promotes-apoptosis-of-prostate-cancer-cells-by-activating-mtorc1
#17
Prasun Guha, Engin Kaptan, Padmaja Gade, Dhananjaya V Kalvakolanu, Hafiz Ahmed
Studies suggest that tunicamycin may work as a therapeutic drug to cancer cells by inducing stress in the endoplasmic reticulum (ER) through unfolded protein response (UPR) and thereby promoting apoptosis. However, mechanisms of the prolonged activation of the UPR under sustained ER stress in the regulation of cell apoptosis are largely unknown. To delineate the role of candidate genes in the apoptotic process under ER stress and to search for new therapeutic strategies to treat metastatic castration resistant prostate cancer, we performed whole genome expression microarray analysis in tunicamycin treated metastatic androgen-insensitive prostate cancer cells, PC-3...
July 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28753077/low-dose-cyclosporine-a-in-the-treatment-of-resistant-proliferative-lupus-nephritis
#18
Marjan Sheikholeslami, Mehrzad Hajialilo, Seyed Sadreddin Rasi Hashemi, Aida Malek Mahdavi, Morteza Gojazadeh, Alireza Khabbazi
OBJECTIVE: This study aimed to evaluate long-term efficacy of low dose cyclosporine A (CsA) in the treatment of resistant proliferative lupus nephritis. METHODS: In this retrospective study, patients with biopsy proven proliferative lupus nephritis who were unresponsive to combination therapy with steroid plus mycophenolate mofetil (MMF) or cyclophosphamide (CYC) and had been treated with CsA were included. Efficacy monitoring was based on the systemic lupus erythematosus (SLE) disease activity index, dose of prednisolone, serum complement, anti-double stranded DNA (anti-dsDNA) titration, urine analysis, proteinuria, creatinine clearance, remission of the renal disease, renal survival and involvement of other organs...
July 28, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28750372/contemporary-antiplatelet-treatment-in-acute-coronary-syndrome-patients-with-impaired-renal-function-undergoing-percutaneous-coronary-intervention
#19
Periklis Davlouros, Ioanna Xanthopoulou, John Goudevenos, Michalis Hamilos, Emmanouil Vavuranakis, George Sitafidis, Ioannis Kanakakis, Spyridon Deftereos, Dimitrios Alexopoulos
OBJECTIVES: To assess the clinical impact of impaired renal function (IRF), in "real-world" acute coronary syndrome (ACS) patients, receiving clopidogrel, prasugrel, or ticagrelor. METHODS: This was a prospective, observational, multicenter, cohort study of ACS patients undergoing percutaneous coronary interventions (PCI) with IRF (creatinine clearance <60 mL/min by Cockroft-Gault equation), who were recruited into the Greek Antiplatelet Registry (GRAPE). Patients were followed-up until 1 year for major adverse cardiovascular events (MACE; a composite of death, nonfatal myocardial infarction, urgent revascularization, and stroke) and BARC (Bleeding Academic Research Consortium) bleeding...
July 28, 2017: Cardiology
https://www.readbyqxmd.com/read/28747505/insufficient-innate-immunity-contributes-to-the-susceptibility-of-the-castaneous-mouse-to-orthopoxvirus-infection
#20
Patricia L Earl, Jeffrey L Americo, Bernard Moss
The castaneous (CAST) mouse, a wild-derived inbred strain, is highly susceptible to orthopoxvirus infection by intranasal and systemic routes. The 50% lethal intraperitoneal dose of vaccinia virus (VACV) was 3 PFU for CAST mice, whereas BALB/c mice survived 10(6) PFU. At all times and in all organs analyzed, virus titers were higher in CAST than in BALB/c mice. In individual CAST mice, luciferase-expressing VACV was seen to replicate rapidly leading to death, whereas virus levels increased for a few days and then declined in BALB/c mice...
July 26, 2017: Journal of Virology
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