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https://www.readbyqxmd.com/read/28794069/phase-i-study-of-the-anti-cd22-immunotoxin-moxetumomab-pasudotox-for-childhood-acute-lymphoblastic-leukemia
#1
Alan S Wayne, Nirali N Shah, Deepa Bhojwani, Lewis B Silverman, James A Whitlock, Maryalice Stetler-Stevenson, Weili Sun, Meina Liang, Jie Yang, Robert J Kreitman, Mark C Lanasa, Ira Pastan
Novel therapies are needed to overcome chemotherapy resistance for children with relapsed/refractory acute lymphoblastic leukemia (ALL). Moxetumomab pasudotox is a recombinant anti-CD22 immunotoxin. A multicenter, phase I study was conducted to determine the maximum tolerated cumulative dose (MTCD) and evaluate safety, activity, pharmacokinetics, and immunogenicity of moxetumomab pasudotox in children, adolescents, and young adults with ALL (n=55). Moxetumomab pasudotox was administered as a 30-minute intravenous infusion at doses of 5 to 50 µg/kg every other day (QOD) for six (Cohorts A and B) or 10 (Cohort C) doses, on 21-day cycles...
August 9, 2017: Blood
https://www.readbyqxmd.com/read/28780656/hus-induced-cardiac-and-circulatory-failure-is-reversible-using-cardiopulmonary-bypass-as-rescue
#2
René F Andersen, Jesper V Bjerre, Johan V Povlsen, Mette Veien, Konstantinos Kamperis, Søren Rittig
BACKGROUND: Extra-renal involvement in hemolytic uremic syndrome (HUS) includes gastrointestinal, pancreatic, hepatic, neurological and cardiac manifestations. The current 3-5% mortality rate in HUS patients is primarily attributed to complications related to the central nervous system and the heart. In this brief report, we illustrate that severe cardiac involvement in a patient with HUS is potentially reversible using cardiopulmonary bypass as rescue. CASE-DIAGNOSIS/TREATMENT: A 12-year-old boy was diagnosed with enterohemorrhagic Escherichia coli-induced HUS related to E...
August 5, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28765569/locus-of-adhesion-and-autoaggregation-laa-a-pathogenicity-island-present-in-emerging-shiga-toxin-producing-escherichia-coli-strains
#3
David A Montero, Juliana Velasco, Felipe Del Canto, Jose L Puente, Nora L Padola, David A Rasko, Mauricio Farfán, Juan C Salazar, Roberto Vidal
Shiga Toxin-producing Escherichia coli (STEC) are a group of foodborne pathogens associated with diarrhea, dysentery, hemorrhagic colitis (HC) and hemolytic uremic syndrome (HUS). Shiga toxins are the major virulence factor of these pathogens, however adhesion and colonization to the human intestine is required for STEC pathogenesis. A subset of STEC strains carry the Locus of Enterocyte Effacement (LEE) pathogenicity island (PAI), which encodes genes that mediate the colonization of the human intestine. While LEE-positive STEC strains have traditionally been associated with human disease, the burden of disease caused by STEC strains that lacks LEE (LEE-negative) has increased recently in several countries; however, in the absence of LEE, the molecular pathogenic mechanisms by STEC strains are unknown...
August 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28757042/occurrence-and-characterization-of-stx-and-or-eae-positive-escherichia-coli-isolated-from-wildlife-including-a-typical-epec-strain-from-a-wild-boar
#4
Carla Andrea Alonso, Azucena Mora, Dafne Díaz, Miguel Blanco, David González-Barrio, Francisco Ruiz-Fons, Carmen Simón, Jorge Blanco, Carmen Torres
Shiga toxin-producing E. coli (STEC) and enteropathogenic E. coli (EPEC) strains are food-borne pathogens associated with acute diarrhea. Haemolytic-uremic syndrome (HUS) is often a complication of STEC infection. In order to examine the occurrence, serotypes, virulence and antimicrobial-resistance profiles of STEC and EPEC in wildlife, 326 faecal E. coli strains from 304 clinically healthy animals were analyzed. For this approach stx1, stx2 and eae genes, as well as accessory virulence determinants (ehx, hlyA, saa, tia, bfp, subAB) were PCR-screened and sequenced...
August 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28750134/performance-evaluation-of-a-collapsed-cone-dose-calculation-algorithm-for-hdr-ir-192-of-apbi-treatments
#5
Dario Terribilini, Veronika Vitzthum, Werner Volken, Daniel Frei, Kristina Loessl, Bob van Veelen, Peter Manser, Michael K Fix
PURPOSE: Most dose calculations for HDR brachytherapy treatments are based on the AAPM-TG43 formalism. Because patient's anatomy, heterogeneities and applicator shielding are not considered, the dose calculation based on this formalism is inaccurate in some cases. Alternatively, Collapsed Cone (CC) methods as well as Monte Carlo (MC) algorithms belong to the model based dose calculation algorithms, which are expected to improve the accuracy of calculated dose distributions. In this work, the performance of a CC algorithm, ACE in Oncentra Brachy 4...
July 27, 2017: Medical Physics
https://www.readbyqxmd.com/read/28733010/effects-of-high-intensity-ultrasound-on-acid-induced-gelation-properties-of-whey-protein-gel
#6
Xue Shen, Changhui Zhao, Mingruo Guo
Pre-heated whey protein isolate (WPI) solution (10% w/v, 85°C for 30min) was prepared and subjected to high-intensity ultrasound (HUS, 20kHz) at different durations (5-40min) before acidification to determine the effects of HUS on glucono-δ-lactone (GDL)-induced gelation properties of whey protein gel. Results showed that HUS reduced the particle size and increased surface free sulfhydryl groups of pre-heated whey protein solution. Free sulfhydryl (-SH) content of the acid-induced WPI gels (GIWG) and protein solubility in presence of 8M urea were significantly reduced (P<0...
November 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28729338/a-new-therapeutic-strategy-for-atypical-hus
#7
Joel L Moake
No abstract text is available yet for this article.
July 20, 2017: Blood
https://www.readbyqxmd.com/read/28720077/hemolytic-uremic-syndrome-as-the-presenting-manifestation-of-wt1-mutation-and-denys-drash-syndrome-a-case-report
#8
Joseph L Alge, Scott E Wenderfer, John Hicks, Mir Reza Bekheirnia, Deborah A Schady, Jamey S Kain, Michael C Braun
BACKGROUND: Hemolytic uremic syndrome (HUS) can occur as a primary process due to mutations in complement genes or secondary to another underlying disease. HUS sometimes occurs in the setting of glomerular diseases, and it has been described in association with Denys-Drash syndrome (DDS), which is characterized by the triad of abnormal genitourinary development; a pathognomonic glomerulopathy, diffuse mesangial sclerosis; and the development of Wilms tumor. CASE PRESENTATION: We report the case of a 46, XX female infant who presented with HUS and biopsy-proven thrombotic microangiopathy...
July 18, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28718863/nya-rutiner-f%C3%A3-r-smittskydds%C3%A2-%C3%A3-tg%C3%A3-rder-vid-ehec-infektion-endast-ehec-som-b%C3%A3-r-p%C3%A3-stx2-genen-kan-kopplas-till-hus-%C3%A2-dessa-smittb%C3%A3-rare-m%C3%A3-ste-avst%C3%A3-ngas-fr%C3%A3-n-arbete-eller-f%C3%A3-rskola
#9
Peter Nolskog, Bo Svenungsson, Cecilia Jernberg
New regulations concerning EHEC/VTEC Hemolytic Uremic Syndrome (HUS) is the most severe complication to an infection with EHEC (enterohemorrhagic E. coli), also called VTEC (verocytotoxin-producing E. coli). Risk of severe complications such as HUS is an important reason why the Swedish Communicable Diseases Act (Smittskyddslag. 2004:168) includes infection with EHEC. With very few exceptions, only EHEC with the stx2 gene is associated with HUS. According to the law, persons working with unpackaged foods, infants or severely immunocompromised patients, and children attending preschool can be suspended awaiting negative test results for EHEC...
July 12, 2017: Läkartidningen
https://www.readbyqxmd.com/read/28718802/ouabain-protects-human-renal-cells-against-the-cytotoxic-effects-of-shiga-toxin-type-2-and-subtilase-cytotoxin
#10
María M Amaral, Magalí C Girard, Romina S Álvarez, Adrienne W Paton, James C Paton, Horacio A Repetto, Flavia Sacerdoti, Cristina A Ibarra
Hemolytic uremic syndrome (HUS) is one of the most common causes of acute renal failure in children. The majority of cases are associated with Shiga toxin (Stx)-producing Escherichia coli (STEC). In Argentina, HUS is endemic and presents the highest incidence rate in the world. STEC strains expressing Stx type 2 (Stx2) are responsible for the most severe cases of this pathology. Subtilase cytotoxin (SubAB) is another STEC virulence factor that may contribute to HUS pathogenesis. To date, neither a licensed vaccine nor effective therapy for HUS is available for humans...
July 18, 2017: Toxins
https://www.readbyqxmd.com/read/28711159/-hemolytic-and-uremic-syndrome-and-related-thrombotic-microangiopathies-epidemiology-pathophysiology-and-clinics
#11
C Rafat, P Coppo, F Fakhouri, V Frémeaux-Bacchi, C Loirat, J Zuber, E Rondeau
Thrombotic microangiopathies (TMA) represent an eclectic group of conditions, which share hemolytic anemia and thrombocytopenia as a common defining basis. Remarkable breakthroughs in the physiopathological setting have allowed for a thorough recomposition of the disparate syndromes, which form the constellation of TMA. In this view, clinicians now discriminate thrombocytopenic thrombotic purpura (TTP) defined by a severe deficiency in ADAMTS13, which is rarely associated with a severe renal involvement and the hemolytic and uremic syndrome (HUS) in which renal impairment is the most prominent clinical feature...
July 12, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/28711077/acute-kidney-injury-in-pregnancy
#12
Belinda Jim, Vesna D Garovic
Pregnancy-related acute kidney injury (AKI) has declined in incidence in the last three decades, although it remains an important cause of maternal and fetal morbidity and mortality. Pregnancy-related causes of AKI such as preeclampsia, acute fatty liver of pregnancy, HELLP (Hemolysis, Elevated Liver function tests, Low Platelets) syndrome, and the thrombotic microangiopathies (thrombotic thrombocytopenic purpura, atypical hemolytic-uremic syndrome [HUS]) exhibit overlapping features and often present as diagnostic dilemmas...
July 2017: Seminars in Nephrology
https://www.readbyqxmd.com/read/28687651/characterization-of-shiga-toxin-producing-escherichia-coli-strains-of-o91-serogroup-isolated-from-food-and-environmental-samples
#13
Peter C H Feng, Sabine Delannoy, David W Lacher, Joseph M Bosilevac, Patrick Fach, Lothar Beutin
Shiga toxin-producing Escherichia coli (STEC) of the O91:H21 serotype has caused severe infections including hemolytic uremic syndrome. Strains of the O91 serogroup have been isolated from food, animals and the environment worldwide, but are not well characterized. We used a microarray and other molecular assays to examine 49 O91 strains (environmental, food and clinical) for virulence potential and phylogenetic relationships. Most of the isolates were identified to be strains of O91:H21 and O91:H14 serotype, with a few O91:H10 strains and one O91:H9 strain...
July 7, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28682564/-complement-factor-b-mutation-in-atypical-hemolytic-uremic-syndrome-rare-cause-of-rare-disease
#14
Luca Visconti, Valeria Cernaro, Gianluigi Ardissino, Martina Sgarbanti, Domenico Ferrara, Giuseppe Visconti, Domenico Santoro, Michele Buemi
Hemolytic uremic syndrome (HUS) is a rare disease characterized by microangiopathic hemolysis, platelet consumption and multiple organ failure with predominant renal involvement. In the most of cases (85-90%), it is associated with enteric infection due to Shiga-toxin or verocytotoxin (STEC-VTEC)-producer Escherichia coli. Rarely, in about 10-15% of cases, HUS develops in the presence of a disorder of alternative complement pathway regulation and it is defined atypical (aHUS). We describe the case of a 65-year-old man who came to our attention with a clinical presentation of aHUS and a clinical course characterized by rapidly progressive acute renal failure (ARF), which required renal replacement treatments, and by a stable clinical picture of hematological impairment as a marker of a non-severe and self-limiting form...
April 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/28675633/increased-urine-production-due-to-leg-fluid-displacement-reduces-hours-of-undisturbed-sleep
#15
Keisuke Kiba, Akihide Hirayama, Motokiyo Yoshikawa, Yutaka Yamamoto, Kazumasa Torimoto, Nobutaka Shimizu, Nobumichi Tanaka, Kiyohide Fujimoto, Hirotsugu Uemura
OBJECTIVE: To investigate whether or not the leg fluid displacement observed when moving from the standing to recumbent position at bedtime reduces the hours of undisturbed sleep (HUS). METHODS: Men aged 50 years or older who were hospitalized for urological diseases were investigated. Body water evaluation was performed three times with a bioelectric impedance method: (i) 17:00, (ii) 30 min after (short-term), and (iii) waking up (long-term). A frequency volume chart was used to evaluate the status of nocturnal urine production, and the factors affecting HUS were investigated...
July 3, 2017: Lower Urinary Tract Symptoms
https://www.readbyqxmd.com/read/28658516/patient-specific-quantification-of-image-quality-an-automated-technique-for-measuring-the-distribution-of-organ-hounsfield-units-in-clinical-chest-ct-images
#16
Ehsan Abadi, Jeremiah Sanders, Ehsan Samei
PURPOSE: To develop and validate an automated technique for measuring organ Hounsfield units (HUs) in clinical chest CT images. MATERIALS AND METHODS: An automated computer algorithm was developed to measure the distribution of HUs inside four major organs: the lungs, liver, aorta, and spine. These organs were first identified using image processing techniques. Each organ was segmented into multiple regions of interest (ROIs) and characterized in terms of HU values...
June 28, 2017: Medical Physics
https://www.readbyqxmd.com/read/28647957/-long-term-effectiveness-of-transvaginal-high-uterosacral-ligament-suspension
#17
L Duan, Y X Lu, W J Shen, X Liu, J X Liu, Y H Zhang, J Ge, Y Zhao, K Niu, W Y Wang
Objective: To assess the long-term effectiveness of the transvaginal high uterosacral ligament suspension (HUS) in women suffering from advanced pelvic organ prolapse (POP). Methods: A retrospective review of records identified 118 women who underwent transvaginal HUS with or without additional concomitant anterior and (or) posterior repairs from June 2003 to August 2009 in the First Affiliated Hospital, General Hospital of People's Liberation Army. Of 118 women, 104 women completed the follow-up during study period; these 104 women were analysed...
June 25, 2017: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/28647502/alternative-complement-pathway-hemolytic-assays-reveal-incomplete-complement-blockade-in-patients-treated-with-eculizumab
#18
Bénédicte Puissant-Lubrano, Sylvain Puissochet, Nicolas Congy-Jolivet, Dominique Chauveau, Stéphane Decramer, Arnaud Garnier, Antoine Huart, Nassim Kamar, David Ribes, Antoine Blancher
Eculizumab is a monoclonal anti-C5 antibody used in the treatment of atypical hemolytic uremic syndrome (aHUS). We monitored complement inhibition in 16 eculizumab-treated patients suffering from HUS or transplant rejection (not aHUS patients). Blood samples were obtained one to four weeks after the last eculizumab injection. We observed that eculizumab efficiently blocked the terminal pathway (TP) through classical pathway (CP) activation measured by kinetic hemolytic assay (HA) (<10%) but incompletely blocked the TP through alternative pathway (AP) activation measured by rabbit (APH50>23%) or chicken erythrocytes HA (AP100>15%)...
June 21, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28643674/microbiological-and-serological-control-of-escherichia-coli-o157-h7-in-kindergarten-staff-in-buenos-aires-city-and-suburban-areas
#19
Romina J Fernández-Brando, María Marta Amaral, Andrés E Ciocchini, Leticia V Bentancor, Jorge A Trelles, Marcelo Da Rocha, Martín Landriel, Mariana Ugarte, Gabriel Briones, Cristina Ibarra, Marina S Palermo
Shiga toxin (Stx)-producing Escherichia coli (STEC) infections are implicated in the development of the life-threatening hemolytic-uremic syndrome (HUS). Despite the magnitude of the social and economic problems caused by HUS, no licensed vaccine or effective therapy is currently available for human use. Prevention of STEC infections continues being the most important measure to reduce HUS incidence. This is especially true for Argentina where HUS incidence among children is extremely high and shows an endemic pattern...
2017: Medicina
https://www.readbyqxmd.com/read/28624923/a-comparison-of-enhancement-patterns-on-dynamic-enhanced-ct-and-survival-between-patients-with-pancreatic-neuroendocrine-tumors-with-and-without-intratumoral-fibrosis
#20
Cherry Kim, Jae Ho Byun, Seung-Mo Hong, Soyeon An, Jin Hee Kim, Seung Soo Lee, Hyoung Jung Kim
PURPOSE: To compare CT findings and survival between patients with pancreatic neuroendocrine tumors (pNETs) with and without fibrosis. METHODS: Forty-five pNET patients with intratumoral fibrosis (group A) were matched for age, gender, and tumor size and grade with 45 pNET patients without (group B), and CT images were retrospectively reviewed. Hounsfield units (HUs) of tumors in unenhanced, arterial and portal phases, HU ratio (tumor to normal parenchyma) in each phase, enhancement patterns, visible enhancement pattern changes, and survival were compared...
June 17, 2017: Abdominal Radiology
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