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https://www.readbyqxmd.com/read/28208873/high-dose-intravenous-anti-d-immune-globulin-is-more-effective-and-safe-in-indian-paediatric-patients-of-immune-thrombocytopenic-purpura
#1
Trupti Rekha Swain, Rabindra Kumar Jena, Kali Prasanna Swain
INTRODUCTION: Immune Thrombocytopenia (ITP) is characterised by an autoimmune antibody-mediated destruction of platelets and impaired platelet production. Few controlled trials exist to guide management of patients with ITP in Indian scenario for which patients require an individualized approach. Anti-D (Rho (D) immune globulin) at a higher dose can prove to be a cost effective and safe alternative for Indian patients with ITP. AIM: To compare the safety and efficacy of higher dose (75μg/kg) intravenous Anti-D immune globulin against the standard dose of 50μg/kg for the management of ITP in Indian patients...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28198911/dioctophyme-renale-prevalence-and-risk-factors-of-parasitism-in-dogs-of-s%C3%A3-o-crist%C3%A3-v%C3%A3-o-district-tr%C3%A3%C2%AAs-barras-county-santa-catarina-state-brazil
#2
Daniela Pedrassani, Adjair Antonio do Nascimento, Marcos Rogério André, Rosangela Zacarias Machado
Dioctophyme renale is a nematode that can be found parasitizing the kidney, peritoneal cavity and, rarely, other organs of canids and mustelids. This disease has high occurrence in the municipality of Três Barras, state of Santa Catarina, thus making this an interesting area to study the epidemiological aspects of infection by D. renale in dogs. Among 197 dogs, 14.2% showed the parasite eggs in urine and 16.4% showed IgG antibodies anti-D. renale in serum samples according to the indirect ELISA method; among seropositive dogs, 15 (37...
February 9, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28101958/a-review-of-maternal-alloimmunisation-to-rh-d-in-northern-ireland
#3
C J McCauley, K Morris, K Maguire
OBJECTIVES: To estimate the current incidence of maternal sensitisation to Rhesus (Rh) D in Northern Ireland, examine adherence to recommendations for administration of anti-D immunoglobulin and identify potential causes for all cases of anti-D alloimmunisation sensitisation from January 2010 to September 2015. BACKGROUND: Post-partum anti-D immunoglobulin administered to Rh D-negative women and routine antenatal anti-D prophylaxis have greatly reduced the incidence of haemolytic disease of the fetus and newborn due to immune anti-D...
January 19, 2017: Transfusion Medicine
https://www.readbyqxmd.com/read/28097699/maternal-red-blood-cell-alloantibodies-identified-in-blood-samples-obtained-from-iranian-pregnant-women-the-first-population-study-in-iran
#4
Ehsan Shahverdi, Mostafa Moghaddam, Fateme Gorzin
BACKGROUND: The objective was to determine the frequency of occurrence of alloantibodies among pregnant women in Iran. STUDY DESIGN AND METHODS: This was a prospective cross-sectional study, which was carried out in the immunohematology reference laboratory of the Iranian Blood Transfusion Organization in Tehran, Iran, in 2008 to 2015. Screening and identification of red blood cell (RBC) alloantibodies was done on the sera of 7340 pregnant females using the standard tube method and gel column agglutination technique...
January 2017: Transfusion
https://www.readbyqxmd.com/read/27995700/shot-conference-report-2016-serious-hazards-of%C3%A2-transfusion%C3%A2-%C3%A2-human-factors-continue-to-cause-most%C3%A2-transfusion-related-incidents
#5
P H B Bolton-Maggs
The Annual SHOT Report for incidents reported in 2015 was published on 7 July at the SHOT symposium. Once again, the majority of reports (77·7%) were associated with mistakes ('human factors'). Pressures and stress in the hospital environment contributed to several error reports. There were 26 deaths where transfusion played a part, one due to haemolysis from anti-Wr(a) (units issued electronically). The incidence of haemolysis due to this antibody has increased in recent years. Transfusion-associated circulatory overload is the most common contributor to death and major morbidity...
December 2016: Transfusion Medicine
https://www.readbyqxmd.com/read/27994529/anti-d-antibodies-in-pregnant-d-variant-antigen-carriers-initially-typed-as-rhd
#6
Jelena Lukacevic Krstic, Slavica Dajak, Jasna Bingulac-Popovic, Vesna Dogic, Jela Mratinovic-Mikulandra
BACKGROUND: To evaluate the incidence, the consequences, and the prevention strategy of anti-D alloimmunizations of D variant carriers in the obstetric population of Split-Dalmatia County, Croatia. METHODS: RhD immunization events were evaluated retrospectively for the period between 1993 and 2012. Women were tested for RhD antigen and irregular antibodies. Those with anti-D antibody who were not serologically D- were genotyped for RHD. They were evaluated for their obstetric and transfusion history and their titer of anti-D...
November 2016: Transfusion Medicine and Hemotherapy
https://www.readbyqxmd.com/read/27913549/second-line-therapies-in-immune-thrombocytopenia
#7
Rachael F Grace, Cindy Neunert
Immune thrombocytopenia (ITP) is a rare, acquired autoimmune condition characterized by a low platelet count and an increased risk of bleeding. Although many children and adults with ITP will not need therapy beyond historic first-line treatments of observation, steroids, intravenous immunoglobulin (IVIG), and anti-D globulin, others will have an indication for second-line treatment. Selecting a second-line therapy depends on the reason for treatment, which can vary from bleeding to implications for health-related quality of life (HRQoL) to likelihood of remission and patient preference with regard to adverse effects, route of administration, and cost...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27893356/single-stranded-dna-aptamer-targeting-and-neutralization-of-anti-d-alloantibody-a-potential-therapeutic-strategy-for-haemolytic-diseases-caused-by-rhesus-alloantibody
#8
Yinze Zhang, Fan Wu, Manni Wang, Naibao Zhuang, Huayou Zhou, Hua Xu
BACKGROUND: Rhesus (Rh) D antigen is the most important antigen in the Rh blood group system because of its strong immunogenicity. When RhD-negative individuals are exposed to RhD-positive blood, they may produce anti-D alloantibody, potentially resulting in delayed haemolytic transfusion reactions and Rh haemolytic disease of the foetus and newborn, which are difficult to treat. Inhibition of the binding of anti-D antibody with RhD antigens on the surface of red blood cells may effectively prevent immune haemolytic diseases...
November 11, 2016: Blood Transfusion, Trasfusione del Sangue
https://www.readbyqxmd.com/read/27891581/antigen-specificity-determines-anti-red-blood-cell-igg-fc-alloantibody-glycosylation-and-thereby-severity-of-haemolytic-disease-of-the-fetus-and-newborn
#9
Myrthe E Sonneveld, Joke Koelewijn, Masja de Haas, Jon Admiraal, Rosina Plomp, Carolien A M Koeleman, Agnes L Hipgrave Ederveen, Peter Ligthart, Manfred Wuhrer, C Ellen van der Schoot, Gestur Vidarsson
Haemolytic disease of the fetus and newborn (HDFN) is a severe disease in which fetal red blood cells (RBC) are destroyed by maternal anti-RBC IgG alloantibodies. HDFN is most often caused by anti-D but may also occur due to anti-K, -c- or -E. We recently found N-linked glycosylation of anti-D to be skewed towards low fucosylation, thereby increasing the affinity to IgG-Fc receptor IIIa and IIIb, which correlated with HDFN disease severity. Here, we analysed 230 pregnant women with anti-c, -E or -K alloantibodies from a prospective screening cohort and investigated the type of Fc-tail glycosylation of these antibodies in relation to the trigger of immunisation and pregnancy outcome...
November 28, 2016: British Journal of Haematology
https://www.readbyqxmd.com/read/27857529/severe-hemolytic-disease-of-the-premature-newborn-due-to-rh1-incompatibility-a-case-report
#10
Jean Uwingabiye, Hafid Zahid, Fayçal Labrini, Abdelhak El Khazraji, Anass Yahyaoui, Rachid Hadef, Nezha Messaoudi
We report a case of dramatic outcome of severe hemolytic disease in a newborn due to RH1 incompatibility. A newborn with A RH1 blood group was admitted in the Mohammed V Military Teaching Hospital for the problem of hydrops fetalis associated with RH1 incompatibility. The blood group of his mother, aged 31, was AB RH1-negative and that of his 37 year old father was A RH1. The mother had a history of 4 term deliveries, 3 abortions, and 1 living child. There was no prevention by anti-D immunoglobulin postpartum...
2016: Clujul Medical (1957)
https://www.readbyqxmd.com/read/27834484/laboratory-management-of-perinatal-patients-with-apparently-new-anti-d
#11
Judith L Hannon, Gwen Clarke
No abstract text is available yet for this article.
September 2016: Immunohematology
https://www.readbyqxmd.com/read/27821701/sensitivity-of-fetal-rhd-screening-for-safe-guidance-of-targeted-anti-d-immunoglobulin-prophylaxis-prospective-cohort-study-of-a-nationwide-programme-in-the-netherlands
#12
Masja de Haas, Florentine F Thurik, Catharina P B van der Ploeg, Barbera Veldhuisen, Hoang Hirschberg, Aicha Ait Soussan, Heleen Woortmeijer, Frithjofna Abbink, Godelieve C M L Page-Christiaens, Peter G Scheffer, C Ellen van der Schoot
OBJECTIVE:  To determine the accuracy of non-invasive fetal testing for the RHD gene in week 27 of pregnancy as part of an antenatal screening programme to restrict anti-D immunoglobulin use to women carrying a child positive for RHD DESIGN:  Prospectively monitoring of fetal RHD testing accuracy compared with serological cord blood typing on introduction of the test. Fetal RHD testing was performed with a duplex real time quantitative polymerase chain reaction, with cell-free fetal DNA isolated from 1 mL of maternal plasma The study period was between 4 July 2011 and 7 October 2012...
November 7, 2016: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/27812255/fetal-rhd-genotyping-from-circulating-cell-free-fetal-dna-in-plasma-of-rh-negative-pregnant-women-in-iran
#13
Mohammad Hossein Ahmadi, Sedigheh Hantuoshzadeh, Mohammad Ali Okhovat, Nahid Nasiri, Azita Azarkeivan, Naser Amirizadeh
The prenatal determination of the fetal Rh genotype could lead to a substantial reduction in the use of anti-D immunoglobulin and prevention of unnecessary exposure of pregnant women carrying RhD negative fetus. The aim of this study was fetal RHD genotyping through the analysis of cffDNA in plasma samples of RhD negative pregnant women by real-time PCR technique. In this experiment, 30 plasma samples were collected from RhD negative pregnant women. DNA were extracted and real-time PCR reactions were done by specific primers for RHD, SRY and beta-globin (GLO) genes...
December 2016: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/27688803/antigen-modulation-as-a-potential-mechanism-of-anti-kel-immunoprophylaxis-in-mice
#14
Jingchun Liu, Manjula Santhanakrishnan, Prabitha Natarajan, David R Gibb, Stephanie C Eisenbarth, Christopher A Tormey, Alexa J Siddon, Sean R Stowell, Donald R Branch, Jeanne E Hendrickson
Red blood cell (RBC) alloimmunization is a serious complication of transfusion or pregnancy. Despite the widespread use of Rh immune globulin to prevent pregnancy associated anti-D alloimmunization, its mechanism of action remains elusive. We have previously described a murine model in which immunoprophylaxis with polyclonal anti-KEL sera prevents alloimmunization in wild-type recipients transfused with transgenic murine RBCs expressing the human KEL glycoprotein. To investigate the mechanism of action, we have now evaluated the outcome of immunoprophylaxis treatment in mice lacking Fcγ receptors (FcγRs), complement (C3), both, or none...
December 29, 2016: Blood
https://www.readbyqxmd.com/read/27681333/impact-of-uniform-methods-on-interlaboratory-antibody-titration-variability-antibody-titration-and-uniform-methods
#15
Lohith S Bachegowda, Yan H Cheng, Thomas Long, Beth H Shaz
CONTEXT: -Substantial variability between different antibody titration methods prompted development and introduction of uniform methods in 2008. OBJECTIVE: -To determine whether uniform methods consistently decrease interlaboratory variation in proficiency testing. DESIGN: -Proficiency testing data for antibody titration between 2009 and 2013 were obtained from the College of American Pathologists. Each laboratory was supplied plasma and red cells to determine anti-A and anti-D antibody titers by their standard method: gel or tube by uniform or other methods at different testing phases (immediate spin and/or room temperature [anti-A], and/or anti-human globulin [AHG: anti-A and anti-D]) with different additives...
January 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/27605860/delayed-hemolytic-transfusion-reaction-due-to-anti-d-in-rh-d-positive-patient
#16
Deepti Sachan, Aswin S Kumar
No abstract text is available yet for this article.
July 2016: Asian Journal of Transfusion Science
https://www.readbyqxmd.com/read/27605858/direct-antiglobulin-test-positivity-in-multi-transfused-thalassemics
#17
Ashish Jain, Ajju Agnihotri, Neelam Marwaha, Ratti Ram Sharma
INTRODUCTION: Red cell allo- and auto-immunization is a well recognized problem in multi-transfused thalassemic patients. We conducted this study on 301 multi-transfused thalassemic patients under the Thalassemia Transfusion Programme of Advanced Pediatric Centre of PGIMER. AIMS AND OBJECTIVES: The study was designed to determine the frequency of alloimmunization and autoimmunization in multi-transfused thalassemic patients and to establish the specificity of alloantibody to red cell antigens, if alloimmunization is detected...
July 2016: Asian Journal of Transfusion Science
https://www.readbyqxmd.com/read/27605856/a-case-of-refractory-immune-thrombocytopenia-in-pregnancy-managed-with-elthrombopag
#18
Jyothis Purushothaman, Kochuthresia J Puthumana, Aswath Kumar, Susheela J Innah, Sareena Gilvaz
Immune thrombocytopenic purpura is a common acquired autoimmune disorder defined by a low platelet count secondary to accelerated platelet destruction or impaired thrombopoesis by anti-platelet antibodies. Thrombopoietin (TPO)-mimetic drugs such as eltrombopag and romiplostim have been used successfully in many nonpregnant individuals with immune thrombocytopenia (ITP) but studies based on its effects in pregnancy are limited. A 27-year-old multigravida who is a known case of ITP with bad obstetric history was referred to the Department of Obstetrics and Gynecology at 26 weeks of gestation with complaints of mucosal bleeding and recurrent abortions...
July 2016: Asian Journal of Transfusion Science
https://www.readbyqxmd.com/read/27600566/international-validation-of-a-dithiothreitol-dtt-based-method-to-resolve-the-daratumumab-interference-with-blood-compatibility-testing
#19
Claudia I Chapuy, Maria D Aguad, Rachel T Nicholson, James P AuBuchon, Claudia S Cohn, Meghan Delaney, Mark K Fung, Meredith Unger, Parul Doshi, Michael F Murphy, Larry J Dumont, Richard M Kaufman
BACKGROUND: Daratumumab (DARA) consistently interferes with routine blood bank serologic testing by directly binding to CD38 expressed on reagent red blood cells (RBCs). Treating RBCs with dithiothreitol (DTT) eliminates the DARA interference. We conducted an international, multicenter, blinded study aimed at validating the DTT method for use by blood bank laboratories worldwide. STUDY DESIGN AND METHODS: Paired plasma sample unknowns were sent to 25 participating blood bank laboratories...
December 2016: Transfusion
https://www.readbyqxmd.com/read/27580632/single-molecule-fluorescence-microscopy-and-machine-learning-for-rhesus-d-antigen-classification
#20
Daniela M Borgmann, Sandra Mayr, Helene Polin, Susanne Schaller, Viktoria Dorfer, Lisa Obritzberger, Tanja Endmayr, Christian Gabriel, Stephan M Winkler, Jaroslaw Jacak
In transfusion medicine, the identification of the Rhesus D type is important to prevent anti-D immunisation in Rhesus D negative recipients. In particular, the detection of the very low expressed DEL phenotype is crucial and hence constitutes the bottleneck of standard immunohaematology. The current method of choice, adsorption-elution, does not provide unambiguous results. We have developed a complementary method of high sensitivity that allows reliable identification of D antigen expression. Here, we present a workflow composed of high-resolution fluorescence microscopy, image processing, and machine learning that - for the first time - enables the identification of even small amounts of D antigen on the cellular level...
2016: Scientific Reports
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