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https://www.readbyqxmd.com/read/28419995/hemolytic-uremic-syndrome-and-kidney-transplantation-a-case-series-and-review-of-the-literature
#1
Sabrina Milan Manani, Grazia Maria Virzì, Anna Giuliani, Anna Clementi, Alessandra Brocca, Daniela Dissegna, Francesca Martino, Emanuele Stefano Giovanni d'Amore, Claudio Ronco
BACKGROUND: Hemolytic uremic syndrome (HUS) can be triggered by Shiga toxin producing Escherichia coli (STEC) infection or it can be defined as atypical HUS (aHUS) if it is related to uncontrolled complement activation. aHUS is characterized by a high incidence of recurrence after kidney transplantation, and it can also occur de novo in transplant recipients. Eculizumab is used both to prevent and to treat aHUS following kidney transplantation. In this paper, we report our centre experience and we present 4 cases of HUS in patients who underwent kidney transplantation...
April 19, 2017: Nephron
https://www.readbyqxmd.com/read/28416773/changes-in-t-cell-subpopulations-and-cytokine-network-during-early-period-of-ibrutinib-therapy-in-chronic-lymphocytic-leukemia-patients-the-significant-decrease-in-t-regulatory-cells-number
#2
Monika Podhorecka, Aneta Goracy, Agnieszka Szymczyk, Malgorzata Kowal, Blanca Ibanez, Olga Jankowska-Lecka, Arkadiusz Macheta, Aleksandra Nowaczynska, Elzbieta Drab-Urbanek, Sylwia Chocholska, Dariusz Jawniak, Marek Hus
B cell receptor (BCR) stimulation signal plays an important role in the pathogenesis of chronic lymphocytic leukemia (CLL), and kinase inhibitors directed toward the BCR pathway are now the promising anti-leukemic drugs. Ibrutinib, a Bruton tyrosine kinase inhibitor, demonstrates promising clinical activity in CLL. It is reported that ibrutinib, additionally to directly targeting leukemic cells, also inhibits the interactions of these cells with T cells, macrophages and accessory cells. Assessment of these mechanisms is important because of their non -direct anti-leukemic effects and to identify possible side effects connected with long-term drug administration...
March 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28416509/none-of-the-above-thrombotic-microangiopathy-beyond-ttp-and-hus
#3
Camila Masias, Sumithira Vasu, Spero R Cataland
Acquired thrombotic thrombocytopenic purpura (TTP) and hemolytic uremic syndrome (HUS) are appropriately at the top of a clinician's differential when a patient presents with a clinical picture consistent with an acute thrombotic microangiopathy (TMA). However, there are several additional diagnoses that should be considered in patients presenting with an acute TMA, especially in patients with non-deficient ADAMTS13 (a disintegrin and metalloproteinase with a thrombospondin type 1 motif, member 13) activity (>10%)...
April 17, 2017: Blood
https://www.readbyqxmd.com/read/28416508/hus-and-atypical-hus
#4
T Sakari Jokiranta
Hemolytic uremic syndrome (HUS) is a thrombotic microangiopathy characterized by intravascular hemolysis, thrombocytopenia, and acute kidney failure. HUS is usually categorized as typical, caused by shiga-toxin producing E. coli (STEC) infection, atypical HUS (aHUS), usually caused by uncontrolled complement activation, or secondary HUS with a coexisting disease. In recent years, a general understanding of the pathogenetic mechanisms driving HUS has increased. Typical (i.e. STEC-HUS) follows a gastrointestinal infection with STEC, while aHUS is associated primarily with mutations or autoantibodies leading to dysregulated complement activation...
April 17, 2017: Blood
https://www.readbyqxmd.com/read/28412596/is-lenticulostriated-vasculopathy-an-unfavorable-prognostic-finding-in-infants-with-congenital-cytomegalovirus-infection
#5
Antonietta Giannattasio, Pasquale Di Costanzo, Paola Milite, Daniela De Martino, Eleonora Capone, Antonia Romano, Carmela Bravaccio, Letizia Capasso, Francesco Raimondi
BACKGROUND: Lenticulostriated vasculopathy (LSV) detected in head ultrasound (HUS) has been related to neurological and hearing sequelae in infants with congenital cytomegalovirus (cCMV) infection. OBJECTIVE: To assess the role of LSV in predicting neurodevelopmental and hearing outcomes in infants with cCMV infection. STUDY DESIGN: We enrolled consecutive infants who were affected by cCMV infection and underwent HUS within the first month of life...
April 6, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28391537/virulence-factors-of-shiga-toxin-producing-escherichia-coli-and-the-risk-of-developing-haemolytic-uraemic-syndrome-in-norway-1992-2013
#6
U Naseer, I Løbersli, M Hindrum, T Bruvik, L T Brandal
Shiga toxin-producing Escherichia coli (STEC) may cause haemolytic uraemic syndrome (HUS). Age ≤5 years and presence of stx2a and eae are risk factors for the development of HUS. In this study, we investigated STEC isolates for the presence of adhesins, toxins and molecular risk assessment (MRA) factors to identify virulence genes associated with HUS development. We included non-duplicate isolates from all STEC infections (n = 340, HUS = 32) reported to the Norwegian National Reference Laboratory (NRL) for Enteropathogenic Bacteria from 1992 to 2013...
April 8, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28389880/role-of-climate-in-the-spread-of-shiga-toxin-producing-escherichia-coli-infection-among-children
#7
Fiorella Acquaotta, Gianluigi Ardissino, Simona Fratianni, Michela Perrone
Haemolytic-uraemic syndrome (HUS) is a rare disease mainly affecting children that develops as a complication of shiga toxin-producing Escherichia coli (STEC) infection. It is characterised by acute kidney injury, platelet consumption and mechanical destruction of red blood cells (haemolysis). In order to test the working hypothesis that the spread of the infection is influenced by specific climatic conditions, we analysed all of the identified cases of infection occurring between June 2010 and December 2013 in four provinces of Lombardy, Italy (Milano, Monza Brianza, Varese and Brescia), in which a STEC surveillance system has been developed as part of a preventive programme...
April 7, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28387984/practical-issues-in-using-eculizumab-for-children-with-atypical-hemolytic-uremic-syndrome-in-the-acute-phase-a-review-of-4-patients
#8
Chikako Terano, Kenji Ishikura, Riku Hamada, Yasuhiro Yoshida, Wataru Kubota, Yusuke Okuda, Shunsuke Shinozuka, Ryoko Harada, Sunao Iyoda, Yoshihiro Fujimura, Yuko Hamasaki, Hiroshi Hataya, Masataka Honda
AIM: Recently eculizumab, a monoclonal antibody to C5, was found to improve the disease course of atypical hemolytic uremic syndrome (aHUS) and has been recommended as the first line treatment by an international consensus guideline. However, several practical issues in the use of eculizumab for the acute phase of aHUS have yet to be resolved. METHODS: Children who received eculizumab with diagnosis of aHUS between March 2010 and December 2015 at Tokyo Metropolitan Children's Medical Center were enrolled...
April 7, 2017: Nephrology
https://www.readbyqxmd.com/read/28381933/limited-evaluation-of-image-quality-produced-by-a-portable-head-ct-scanner-ceretom-in-a-neurosurgery-centre
#9
Ariz Chong Abdullah, Johari Siregar Adnan, Noor Azman A Rahman, Ravikant Palur
INTRODUCTION: Computed tomography (CT) is the preferred diagnostic toolkit for head and brain imaging of head injury. A recent development is the invention of a portable CT scanner that can be beneficial from a clinical point of view. AIM: To compare the quality of CT brain images produced by a fixed CT scanner and a portable CT scanner (CereTom). METHODS: This work was a single-centre retrospective study of CT brain images from 112 neurosurgical patients...
March 2017: Malaysian Journal of Medical Sciences: MJMS
https://www.readbyqxmd.com/read/28381926/subperiosteal-drainage-versus-subdural-drainage-in-the-management-of-chronic-subdural-hematoma-a-comparative-study
#10
Adrian Ng Wei Chih, Albert Wong Sii Hieng, Noor Azman A Rahman, Jafri Malin Abdullah
INTRODUCTION: Symptomatic chronic subdural hematomas (CSDH) remain one of the most frequent diagnoses in current neurosurgical practice. Burr-hole craniostomy with irrigation and placement of close-system drainage is the current recommended surgery for symptomatic CSDH. The aim of this study is to perform a direct comparison between two surgical techniques in the treatment of symptomatic CSDH, which have been proven in previous studies to be efficient. Our main objective was to compare the efficacy of placement of a subperiosteal drain (SPD) and a subdural drain (SDD) following single burr-hole craniostomy and irrigation, and to demonstrate any significant differences in terms of overall surgical complications, functional outcome at three months and mortality rate...
March 2017: Malaysian Journal of Medical Sciences: MJMS
https://www.readbyqxmd.com/read/28369609/4-bromodiphenyl-ether-bde-3-induces-germ-cell-apoptosis-by-induction-of-ros-and-dna-damage-in-caenorhabditis-elegans
#11
Xinyue You, Jing Xi, Yiyi Cao, Jinfu Zhang, Yang Luan
Polybrominated diphenyl ethers (PBDEs) may affect male reproductive function; however, the underlying mechanism is still uncertain. By using Caenorhabditis elegans (C. elegans), a commonly used model to study basic biological processes in apoptosis, we investigated the toxic effects of 4-bromodiphenyl ether (BDE-3), the most fundamental mono-BDE generated from degradation of PBDEs in the environment. We found that BDE-3 treated worms exhibited decreased life spans, impaired fecundity and delayed egg laying...
March 27, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28360097/chk2-overexpression-and-mislocalisation-within-mitotic-structures-enhances-chromosomal-instability-and-hepatocellular-carcinoma-progression
#12
Vinicio Carloni, Matteo Lulli, Stefania Madiai, Tommaso Mello, Andrew Hall, Tu Vinh Luong, Massimo Pinzani, Krista Rombouts, Andrea Galli
OBJECTIVE: Chromosomal instability (CIN) is the most common form of genomic instability, which promotes hepatocellular carcinoma (HCC) progression by enhancing tumour heterogeneity, drug resistance and immunity escape. CIN per se is an important factor of DNA damage, sustaining structural chromosome abnormalities but the underlying mechanisms are unknown. DESIGN: DNA damage response protein checkpoint kinase 2 (Chk2) expression was evaluated in an animal model of diethylnitrosamine-induced HCC characterised by DNA damage and elevated mitotic errors...
March 30, 2017: Gut
https://www.readbyqxmd.com/read/28356668/targeting-renin-angiotensin-system-in-malignant-hypertension-in-atypical-hemolytic-uremic-syndrome
#13
V Raghunathan, S K Sethi, M A Dragon-Durey, M Dhaliwal, R Raina, P Jha, S B Bansal, V Kher
Hypertension is common in hemolytic uremic syndrome (HUS) and often difficult to control. Local renin-angiotensin activation is believed to be an important part of thrombotic microangiopathy, leading to a vicious cycle of progressive renal injury and intractable hypertension. This has been demonstrated in vitro via enhanced tissue factor expression on glomerular endothelial cells which is enhanced by angiotensin II. We report two pediatric cases of atypical HUS with severe refractory malignant hypertension, in which we targeted the renin-angiotensin system by using intravenous (IV) enalaprilat, oral aliskiren, and oral enalapril with quick and dramatic response of blood pressure...
March 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28353273/clinical-characteristics-of-children-with-hemolytic-uremic-syndrome-in-hangzhou-china
#14
Shui-Ai Zhao, Bo-Tao Ning, Jian-Hua Mao
BACKGROUND: Hemolytic uremic syndrome (HUS) is a main cause of acute renal failure in children. This study aimed to analyze the clinical characteristics of HUS. METHODS: A retrospective analysis was performed in 46 children with sporadic HUS. RESULTS: Of the 46 HUS patients, 20 (43.5%) were diarrhea-related HUS, and 26 (56.5%) were atypical HUS. Anemia, edema, oliguria, hemoglobinuria and hypertension were the most common manifestations. Thrombocytopenia, hyponatremia, hypocalcemia, hyperkalemia, metabolic acidosis, increased fibrinogen and hypocomplementemia were found in most patients...
April 2017: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/28347544/ocular-involvement-in-atypical-haemolytic-uraemic-syndrome
#15
A Sampedro López, B Domínguez Moro, J M Baltar Martin, C Garcia Monteavaro, J J Barbón García
CASE REPORT: The case is presented of a young man with an atypical haemolytic-uraemic syndrome (aHUS), complicated with bilateral serous retinal detachment, cotton wool spots, and a branch artery occlusion. Treatment with plasmapheresis, haemodialysis and systemic eculizumab led to the blood and urine parameters returning to normal, as well as resolution of the retinal anomalies. Genetic analysis show both mutations in complement factor H and C3. DISCUSSION: Haemolytic-uraemic syndrome (HUS) is a thrombotic microangiopathy characterised by microangiopathic haemolytic anaemia, thrombocytopenia, and acute renal failure...
March 24, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/28343354/unusual-severe-case-of-hemolytic-uremic-syndrome-due-to-shiga-toxin-2d-producing-e-coli-o80-h2
#16
Kioa L Wijnsma, Anne M Schijvens, John W A Rossen, A M D Mirjam Kooistra-Smid, Michiel F Schreuder, Nicole C A J van de Kar
BACKGROUND: Hemolytic uremic syndrome (HUS) is one of the most common causes of acute renal failure in children, with the majority of cases caused by an infection with Shiga toxin-producing Escherichia coli (STEC). Whereas O157 is still the predominant STEC serotype, non-O157 serotypes are increasingly associated with STEC-HUS. However, little is known about this emerging and highly diverse group of non-O157 serotypes. With supportive therapy, STEC-HUS is often self-limiting, with occurrence of chronic sequelae in just a small proportion of patients...
March 25, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28342121/can-comprehensive-imaging-analysis-with-analytic-morphomics-and-geriatric-assessment-predict-serious-complications-in-patients-undergoing-pancreatic-surgery
#17
Andrew J Benjamin, Mary M Buschmann, Andrew Schneider, Brian A Derstine, Jeffrey F Friedman, Stewart C Wang, William Dale, Kevin K Roggin
We aimed to determine whether comprehensive imaging analysis with analytic morphomics (AM) enhances or replaces geriatric assessment (GA) in risk-stratifying pancreatic surgery patients. One hundred thirty-four pancreatic surgery patients were identified from a prospective cohort. Sixty-three patients in the cohort had preoperative CT scans in addition to comprehensive geriatric assessments. CT scans were processed using AM. Associations with National Surgical Quality Improvement Program (NSQIP) serious complications were evaluated using univariate analysis and robust elastic net modeling to obtain AUROC curves by adding AM and GA measures to our previously defined clinical base risk model (age, body mass index, American Society of Anesthesiologists classification, and Charlson comorbidity index)...
March 24, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28340492/hemolysis-elevated-liver-enzymes-low-platelets-syndrome-superimposed-on-hemolytic-uremic-syndrome
#18
Inês Martins, Madalena Gomes Conceição, Paulo Pereira Gomes, Nuno Clode
A pregnancy complicated by typical hemolytic uremic syndrome (HUS) and hemolysis, elevated liver enzymes, low platelets (HELLP) syndrome is reported. At 20 weeks of gestation, a case of HUS was diagnosed, with Shiga toxin-producing Escherichia coli identified. Plasmapheresis allowed continuation of the pregnancy for 5 weeks. Superimposed preeclampsia and HELLP syndrome were diagnosed after the establishment of nephrotic range proteinuria, hypertension and recurrence of hemolysis. This is a singular case, as it demonstrates that HELLP syndrome can superimpose upon HUS, a fact that can impact future research on reproductive immunology...
April 2017: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/28338833/a-humidity-shock-leads-to-rapid-temperature-dependent-changes-in-coffee-leaf-physiology-and-gene-expression
#19
El-Hadji Thioune, James McCarthy, Thomas Gallagher, Bruce Osborne
Climate change is expected to increase the frequency of above-normal atmospheric water deficits contemporaneous with periods of high temperatures. Here we explore alterations in physiology and gene expression in leaves of Coffea canephora Pierre ex A. Froehner caused by a sharp drop in relative humidity (RH) at three different temperatures. Both stomatal conductance (gs) and CO2 assimilation (A) measurements showed that gs and A values fell quickly at all temperatures after the transfer to low RH.  However, leaf relative water content measurements indicated that leaves nonetheless experienced substantial water losses, implying that stomatal closure and/or resupply of water was not fast enough to stop excessive evaporative losses...
March 1, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28330075/a-novel-multiplex-pcr-method-for-the-detection-of-virulence-associated-genes-of-escherichia-coli-o157-h7-in-food
#20
Vo Van Giau, Thuy Trang Nguyen, Thi Kim Oanh Nguyen, Thi Thuy Hang Le, Tien Dung Nguyen
Shiga toxin-producing Escherichia coli O157:H7 (E. coli O157:H7) strains are foodborne infectious agents that cause a number of life-threatening diseases, including hemorrhagic colitis (HC) and hemolytic uremic syndrome (HUS). Shiga toxin 1 (stx1), shiga toxin 2 (stx2), or a combination of both are responsible for most clinical symptoms of these diseases. Hence, various diagnostic methods have been developed so far to detect shiga toxins such as cell culture, ELISA, Rapid Latex Agglutination (RPLA) and hybridization, but due to high costs and labor time in addition to low sensitivity, they have not received much attention...
June 2016: 3 Biotech
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