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Hemolytic uremic syndrome

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https://www.readbyqxmd.com/read/29474148/quantitative-risk-assessment-of-hemolytic-uremic-syndrome-associated-with-consumption-of-bulk-milk-sold-directly-from-producer-to-consumer-in-south-africa
#1
Victor Ntuli, Patrick M K Njage, Paolo Bonilauri, Andrea Serraino, Elna M Buys
This study was conducted to estimate the hemolytic uremic syndrome (HUS) risk associated with consumption of producer-distributor bulk milk (PDBM) contaminated with Shiga toxin-producing Escherichia coli (STEC) in South Africa. Data were obtained from recently completed studies in South Africa taking into account prior collected prevalence data of STEC in raw and pasteurized PDBM and survey information from producer-distributor outlets and households. Inputs for the models were complemented with data from published and unpublished literature...
February 23, 2018: Journal of Food Protection
https://www.readbyqxmd.com/read/29459381/a-patient-with-hemolytic-uremic-syndrome-and-kidney-failure
#2
Joshua M Thurman
No abstract text is available yet for this article.
February 19, 2018: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/29456415/gastroenteritis-in-an-adult-female-revealing-hemolytic-uremic-syndrome-case-report
#3
Paulina Chinchilla-López, Vania Cruz-Ramón, Oscar Ramírez-Pérez, Nahum Méndez-Sánchez
Nowadays acute gastroenteritis infection caused by Escherichia coli ( E. coli ) O157:H7 is frequently associated with hemolytic uremic syndrome (HUS), which usually developed after prodromal diarrhea that is often bloody. The abdominal pain accompanied by failure kidney is a suspicious symptom to develop this disorder. Their pathological characteristic is vascular damage which manifested as arteriolar and capillary thrombosis with abnormalities in the endothelium and vessel walls. The major etiological agent of HUS is enterohemorragic ( E coli ) strain belonging to serotype O157:H7...
February 14, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29447841/crispr-cas9-generated-human-cd46-cd55-and-cd59-knockout-cell-lines-as-a-tool-for-complement-research
#4
Astrid J F Thielen, Iris M van Baarsen, Marlieke L Jongsma, Sacha Zeerleder, Robbert M Spaapen, Diana Wouters
BACKGROUND: To prevent unwanted complement activation and subsequent damage, complement activation must be tightly regulated on healthy host cells. Dysregulation of the complement system contributes to the pathology of diseases like Paroxysmal Nocturnal Hemoglobinuria and atypical Hemolytic Uremic Syndrome. To investigate complement regulator deficiencies, primary patient cells may be used, but access to patient cells may be limited and cells are heterogeneous between different patients...
February 12, 2018: Journal of Immunological Methods
https://www.readbyqxmd.com/read/29447477/inhibition-of-the-lethality-of-shiga-like-toxin-1-by-functional-gold-nanoparticles
#5
Chun-Hsien Li, Yi-Ling Bai, Yu-Chie Chen
Escherichia coli O157:H7 is a pathogen, which can generate Shiga-like toxins (SLTs) and cause hemolytic-uremic syndrome. Foodborne illness outbreaks caused by E. coli O157:H7 have become a global issue. Since SLTs are quite toxic, effective medicines that can reduce the damage caused by SLTs should be explored. SLTs consist of a single A and five B subunits, which can inhibit ribosome activity for protein synthesis and bind with the cell membrane of host cells, respectively. Pigeon ovalbumin (POA), i.e. a glycoprotein, is abundant in pigeon egg white (PEW) proteins...
February 15, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29446073/ccr2-dependent-gr1high-monocytes-promote-kidney-injury-in-shiga-toxin-induced-hemolytic-uremic-syndrome-in-mice
#6
Judith-Mira Pohl, Julia K Volke, Stephanie Thiebes, Alexandra Brenzel, Kerstin Fuchs, Nicolas Beziere, Walter Ehrlichmann, Bernd J Pichler, Anthony Squire, Faikah Gueler, Daniel R Engel
The hemolytic uremic syndrome (HUS) is a life-threatening disease of the kidney that is induced by Shiga toxin-producing E.coli. Major changes in the monocytic compartment and in CCR2-binding chemokines have been observed. However, the specific contribution of CCR2-dependent Gr1high monocytes is unknown. To investigate the impact of these monocytes during HUS, we injected a combination of LPS and Shiga toxin into mice. We observed an impaired kidney function and elevated levels of the CCR2-binding chemokine CCL2 after Shiga toxin/LPS- injection, thus suggesting Gr1high monocyte infiltration into the kidney...
February 14, 2018: European Journal of Immunology
https://www.readbyqxmd.com/read/29443761/haemolytic-uremic-syndrome-due-to-infection-with-adenovirus-a-case-report-and-literature-review
#7
Victoria Birlutiu, Rares Mircea Birlutiu
RATIONALE: Haemolytic-uremic syndrome is a rare but serious complication of bacterial and viral infections, which is characterized by the triad of: acute renal failure, microangiopathic haemolytic anemia and thrombocytopenia, sometimes severe, requiring peritoneal dialysis. In Europe, hemolytic-uremic syndrome (HUS) in paediatric pathology is primarily caused by Shiga toxin-producing Escherichia coli (STEC) O157, followed by O26. Beside these etiologies, there are other bacterial and viral infections, and also noninfectious ones that have been associated to lead to HUS as well: in the progression of neoplasia, medication-related, post-transplantation, during pregnancy or associated with the antiphospholipid syndrome, systemic lupus erythematosus or family causes with autosomal dominant or recessive inheritance...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29442205/antibacterial-and-immunomodulatory-activities-of-bovine-lactoferrin-against-escherichia-coli-o157-h7-infections-in-cattle
#8
Evelien Kieckens, Joanna Rybarczyk, Eric Cox, Daisy Vanrompay
Enterohemorrhagic Escherichia coli (EHEC) O157:H7 is a zoonotic pathogen that causes food-borne disease in humans ranging from watery diarrhea to bloody diarrhea and severe hemorrhagic colitis, renal failure and hemolytic uremic syndrome. Cattle, the most important source of E. coli O157:H7 transmission to humans, harbor the bacteria in their gastrointestinal tract without showing clinical symptoms. Prevention of E. coli O157:H7 infections in ruminants could diminish the public health risk. However, there is no specific treatment available nor a vaccine or a therapeutic agent which completely prevents E...
February 13, 2018: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/29434134/a-rare-case-of-lupus-nephritis-presenting-as-thrombotic-microangiopathy-with-diffuse-pseudotubulization-possibly-caused-by-atypical-hemolytic-uremic-syndrome
#9
Masafumi Ono, Naro Ohashi, Akio Namikawa, Naoko Katahashi, Sayaka Ishigaki, Naoko Tsuji, Shinsuke Isobe, Takamasa Iwakura, Yukitoshi Sakao, Takayuki Tsuji, Akihiko Kato, Yoshihide Fujigaki, Akira Shimizu, Hideo Yasuda
A 31-year-old woman was admitted to our hospital for thrombotic microangiopathy (TMA). She was diagnosed with systemic lupus erythematosus (SLE) and class V lupus nephritis. She had no aggravated SLE activity, Shiga toxin positivity, ADAMTS13 abnormality, or other causes of secondary TMA. Plasma exchange partially improved TMA, and eculizumab was introduced for suspected atypical hemolytic uremic syndrome (aHUS), as eculizumab was effective in suppressing the TMA activity. A kidney biopsy revealed diffusely organized crescents (pseudotubulization) with glomerular and arteriolar endothelial injury and subepithelial immune deposits...
February 9, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29429664/removal-of-bacteria-legionella-pneumophila-escherichia-coli-and-bacillus-subtilis-by-super-cavitation
#10
Andrej Šarc, Janez Kosel, David Stopar, Martina Oder, Matevž Dular
In sufficient concentrations, the pathogenic bacteria L. pneumophila can cause a respiratory illness that is known as the "Legionnaires" disease. Moreover, toxic Shiga strains of bacteria E. coli can cause life-threatening hemolytic-uremic syndrome. Because of the recent restrictions imposed on the usage of chlorine, outbreaks of these two bacterial species have become more common. In this study we have developed a novel rotation generator and its effectiveness against bacteria Legionella pneumophila and Escherichia coli was tested for various types of hydrodynamic cavitation (attached steady cavitation, developed unsteady cavitation and supercavitation)...
April 2018: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/29426622/atypical-hemolytic-uremic-syndrome-an-unusual-postoperative-complication
#11
S Mota, C Filipe, A L Almeida
INTRODUCTION AND OBJECTIVES: Thrombotic thrombocytopenic purpura and atypical haemolytic uremic syndrome (aHUS) are acute, rare, life-threatening thrombotic microangiopathies that require swift management. We report a case of acute microangiopathic haemolytic anaemia (MAHA) presenting in perioperative setting. CLINICAL CASE: After hepatic pericystectomy for hydatid cyst, a 46-year-old female developed MAHA, thrombocytopenia and acute renal failure in the immediate postoperative period...
February 6, 2018: Revista Española de Anestesiología y Reanimación
https://www.readbyqxmd.com/read/29413210/escherichia-coli-complications-in-pediatric-critical-care
#12
REVIEW
Suzanne S Puentes, Michele Dunstan
Escherichia coli is a bacterium that is an important part of the intestinal tract; however, it has the potential to become pathogenic. Shiga toxin-producing E coli (STEC) is a leading cause of E coli infections and has led to outbreaks in North America. Transmission is through ingestion of contaminated food sources, and via infected humans and animals. Young children infected with STEC are at high risk for developing hemolytic uremic syndrome (HUS). HUS is a clinical syndrome characterized by macroangiopathic hemolytic anemia, thrombocytopenia, and acute renal failure...
March 2018: Critical Care Nursing Clinics of North America
https://www.readbyqxmd.com/read/29399580/immunogenicity-of-the-nanovaccine-containing-intimin-recombinant-protein-in-the-balb-c-mice
#13
Zahra Sadat Hosseini, Jafar Amani, Fahimeh Baghbani Arani, Shahram Nazarian, Mohammad Javad Motamedi, Fatemeh Shafighian
Purpose: Escherichia coli O157:H7 is one of the most important pathogens which create hemorrhagic colitis and hemolytic uremic syndrome in human. It is one of the most prevalent causes of diarrhea leading to death of many people every year. The first diagnosed gene in the locus of enterocyte effacement pathogenicity island is eae gene. The product of this gene is a binding protein called intimin belonging to the group of external membrane proteins regarded as a good stimulants of the immune system...
January 2018: Clinical and Experimental Vaccine Research
https://www.readbyqxmd.com/read/29399327/recent-advances-in-understanding-and-management-of-acquired-thrombocytopenia
#14
REVIEW
Srikanth Nagalla, Ravindra Sarode
There are numerous congenital and acquired causes of thrombocytopenia. Thrombocytopenia could be a result of decreased bone marrow production, increased consumption, increased destruction, splenic sequestration or a combination of these causes. In this review, we have focused on some of the serious acquired causes of thrombocytopenia. There have been some significant advances in our understanding of the pathophysiology, diagnostic testing, and treatment of immune thrombocytopenia, heparin-induced thrombocytopenia, thrombotic thrombocytopenic purpura, and atypical hemolytic uremic syndrome over the past five years...
2018: F1000Research
https://www.readbyqxmd.com/read/29395881/postdiarrheal-hemolytic-and-uremic-syndrome-with-severe-multiorgan-involvement-and-associated-early-risk-factors
#15
M Oualha, S Pierrepont, P Krug, C Gitiaux, P Hubert, F Lesage, R Salomon
AIM: Identifying early clinical and biological factors associated with severe forms of postdiarrheal hemolytic uremic syndrome (D+HUS) that may help practitioners determine appropriate treatment. METHODS: This retrospective study was conducted in 49 children with D+HUS between 2001 and 2011. Severe forms were defined as occurrence of one of the following conditions: death, major neurological involvement, cardiovascular involvement, and/or the presence of sequelae (neurological, cardiovascular, pancreatic, or renal)...
January 27, 2018: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/29390523/efficacy-of-eculizumab-in-an-adult-patient-with-hiv-associated-hemolytic-uremic-syndrome-a-case-report
#16
Marine Freist, Cyril Garrouste, Nora Szlavik, Paul Coppo, Alexandre Lautrette, Anne Elisabeth Heng
INTRODUCTION: Hemolytic uremic syndrome (HUS) in Human Immunodeficiency Virus (HIV)-positive patients has become a rare cause of kidney injury since the era of highly active antiretroviral therapy (HAART). Plasma exchange and antiretroviral therapy were previously recommended but often failed to achieve remission. We report a case of HUS in a HIV-positive patient treated successfully with eculizumab. CASE SUMMARY: A 52-year-old woman presented to hospital with acute renal failure, thrombocytopenia, anemia, and hypoxemia...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29387412/neurological-variability-in-chemotherapy-induced-posterior-reversible-encephalopathy-syndrome-associated-with-thrombotic-microangiopathy-case-reports-and-literature-review
#17
Chen Makranz, Salome Khutsurauli, Yosef Kalish, Ruth Eliahou, Luna Kadouri, John Moshe Gomori, Alexander Lossos
Posterior reversible encephalopathy syndrome (PRES) is a clinical syndrome characterized by headaches, seizures, a confusional state and visual disturbances associated with transient predominantly bilateral posterior white mater magnetic resonance imaging lesions. It is primarily reported in the setting of hypertension, acute renal failure, peripartum eclampsia, autoimmune disease, immunosuppression and chemotherapy. Thrombotic microangiopathy (TMA), including hemolytic uremic syndrome (HUS) and thrombotic thrombocytopenic purpura (TTP) has also been reported as potential PRES inducer...
January 2018: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29385045/an-improved-method-for-the-sensitive-detection-of-shiga-toxin-2-in-human-serum
#18
Xiaohua He, Gianluigi Ardissino, Stephanie Patfield, Luisa W Cheng, Christopher J Silva, Maurizio Brigotti
Shiga toxins (Stx) released by Stx-producing E. coli (STEC) are virulence factors that are most closely 3associated with hemolytic uremic syndrome (HUS), a life-threatening complication of intestinal infections by STEC. Stx have to enter into the circulatory system before they are delivered to target organs and cause damage. The presence of Stx in sera could be a risk indicator for HUS development. However, the detection of Stx, particularly Stx2, has been difficult due to the presence of Stx2-binding components in human serum...
January 31, 2018: Toxins
https://www.readbyqxmd.com/read/29383821/carboxypeptidase-b2-and-n-play-different-roles-in-regulation-of-activated-complements-c3a-and-c5a-in-mouse
#19
J Morser, Z Shao, T Nishimura, Q Zhou, L Zhao, J Higgins, L L K Leung
BACKGROUND: There are two basic carboxypeptidases in plasma. Carboxypeptidase B2 (CPB2) is activated from a circulating zymogen, proCPB2, and carboxypeptidase N (CPN) is constitutively active with both inactivating complement C3a and C5a. AIMS: To test the roles of CPB2 and CPN in complement-driven mouse models of cobra venom factor (CVF) challenge and hemolytic-uremic syndrome (HUS). METHODS: Cpb2-/- , Cpn-/- and wild type (WT) mice were compared in a HUS model induced by Shiga toxin and lipopolysaccharide administration and following CVF administration...
January 31, 2018: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/29372302/pathogenic-role-of-inflammatory-response-during-shiga-toxin-associated-hemolytic-uremic-syndrome-hus
#20
Ramon Alfonso Exeni, Romina Jimena Fernandez-Brando, Adriana Patricia Santiago, Gabriela Alejandra Fiorentino, Andrea Mariana Exeni, Maria Victoria Ramos, Marina Sandra Palermo
Hemolytic uremic syndrome (HUS) is defined as a triad of noninmune microangiopathic hemolytic anemia, thrombocytopenia, and acute kidney injury. The most frequent presentation is secondary to Shiga toxin (Stx)-producing Escherichia coli (STEC) infections, which is termed postdiarrheal, epidemiologic or Stx-HUS, considering that Stx is the necessary etiological factor. After ingestion, STEC colonize the intestine and produce Stx, which translocates across the intestinal epithelium. Once Stx enters the bloodstream, it interacts with renal endothelial and epithelial cells, and leukocytes...
January 25, 2018: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
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