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https://www.readbyqxmd.com/read/28718198/targeted-antenatal-anti-d-prophylaxis-program-for-rhd-negative-pregnant-women-outcome-of-the-first-two-years-of-a-national-program-in-finland
#1
Katri Haimila, Kati Sulin, Malla Kuosmanen, Inna Sareneva, Anu Korhonen, Suvi Natunen, Jarno Tuimala, Susanna Sainio
The aim of this study was to assess the accuracy of the non-invasive fetal RHD test at 24-26 weeks of gestation as part of the national antenatal screening programme to target routine antenatal anti-D prophylaxis (RAADP) at 28-30 weeks at women carrying an RhD-positive fetus MATERIAL AND METHODS: A prospective cohort study involving all maternity care centres and delivery hospitals in Finland between February 2014 and January 2016. Fetal RHD genotyping using cell-free fetal DNA in maternal plasma was performed with real-time polymerase chain reaction in a centralised setting...
July 17, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28717357/high-levels-of-cxcl8-and-low-levels-of-cxcl9-and-cxcl10-in-women-with-maternal-rhd-alloimmunization
#2
Juliana Araújo de Carvalho Schettini, Thomás Virgílio Gomes, Alexandra Karla Santos Barreto, Claudeir Dias da Silva Júnior, Marina da Matta, Isabela Cristina Neiva Coutinho, Maria do Carmo Valgueiro Costa de Oliveira, Leuridan Cavalcante Torres
Maternal RhD alloimmunization is an inflammatory response against protein antigens in fetal red blood cells (RBC). However, not all women become alloimmunized when exposed to RhD(+) fetal RBC. Thus, this study aimed to evaluate levels of inflammatory chemokines in RhD(-) pregnant women with erythrocyte alloimmunization. CXCL8, CXCL9, CCL5, and CXCL10 levels were determined from cell culture supernatants by flow cytometry in 46 (30 non-alloimmunized RhD(-) and 16 previously alloimmunized RhD(-)) pregnant women...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28716486/the-impact-of-a-peer-support-group-for-children-with-rheumatic-heart-disease-in-uganda
#3
Amy Scheel, Andrea Beaton, Emmy Okello, Chris T Longenecker, Isaac Omara Otim, Peter Lwabi, Craig Sable, Allison R Webel, Twalib Aliku
OBJECTIVE: To assess the impact of a peer-support group on knowledge, quality of life, and social support for children with rheumatic heart disease (RHD). METHODS: Children diagnosed with RHD and receiving 4-weekly injectable penicillin were invited to participate in a monthly support group for 6 months. Pre- and post-intervention assessments included a baseline RHD knowledge assessment, a measure of health related quality of life (HRQOL) (PedsQLTM4.0), and a measure of social support (Hawthorne Friendship Scale)...
July 11, 2017: Patient Education and Counseling
https://www.readbyqxmd.com/read/28714065/genotyping-by-sequencing-defines-independent-novel-rhd-variants-for-an-antenatal-patient-and-a-blood-donor
#4
Genghis H Lopez, Eunike C McGowan, Jennifer A Condon, Elizna M Schoeman, Glenda M Millard, Helen O'Brien, Eileen V Roulis, Gorka Ochoa-Garay, Yew-Wah Liew, Robert L Flower, Catherine A Hyland
No abstract text is available yet for this article.
July 16, 2017: Transfusion
https://www.readbyqxmd.com/read/28689774/expression-of-il-1ra-il-6-il-8-il-18-tnf-%C3%AE-and-ifn-%C3%AE-genes-in-peripheral-blood-leukocytes-of-rabbits-infected-with-rhdv-rabbit-haemorrhagic-disease-virus
#5
Alicja Trzeciak-Ryczek, Beata Tokarz-Deptuła, Wiesław Deptuła
Rabbit haemorrhagic disease virus (RHDV) induces a highly contagious and extremely lethal disease that fulfils many requirements of an animal model of fulminant hepatic failure (FHF); however, the pathogenesis of RHD has still not been fully elucidated. Cytokines play an important role in regulation of the immune response and pathogenesis of many diseases, including those caused by viral infections. Furthermore, recent studies indicate a role of the immune response, especially peripheral blood leukocytes (PBL), in the pathogenesis of RHD...
July 8, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28686149/enhanced-opsonisation-of-rhesus-d-positive-human-red-blood-cells-by-recombinant-polymeric-immunoglobulin-g-anti-g-antibodies
#6
Dylana Díaz-Solano, Jaheli Fuenmayor, Ramon F Montaño
BACKGROUND: Anti-RhD antibodies (anti-D) are important in the prophylaxis of haemolytic disease of the foetus and newborn (HDFN) due to RhD incompatibility. Current preparations of anti-D are sourced from hyperimmune human plasma, so its production carries a risk of disease and is dependent on donor availability. Despite the efforts to develop a monoclonal preparation with similar prophylactic properties to the plasma-derived anti-D, no such antibody is yet available. Here we studied the agglutinating, opsonic and haemolytic activities of two recombinant polymeric immunoglobulins (Ig) against the G antigen of the Rh complex...
May 30, 2017: Blood Transfusion, Trasfusione del Sangue
https://www.readbyqxmd.com/read/28683722/epidemiology-of-pharyngitis-as-reported-by-zambian-school-children-and-their-families-implications-for-demand-side-interventions-to-prevent-rheumatic-heart-disease
#7
John Musuku, Joyce C Lungu, Elizabeth Machila, Catherine Jones, Laurence Colin, Sherri Schwaninger, Patrick Musonda, Brigitta Tadmor, Jonathan M Spector, Mark E Engel, Liesl J Zühlke
BACKGROUND: Prompt and appropriate treatment of streptococcal pharyngitis decreases the risk of acute rheumatic fever and rheumatic heart disease (RHD). Understanding public perceptions and behaviors related to sore throat is fundamental to inform health programs aimed at eliminating new cases of RHD in endemic regions. We sought to describe the epidemiology of pediatric pharyngitis and its treatment, as reported by children and their parents or guardians in Lusaka, Zambia. METHODS: This was a cross-sectional investigation using interviews and written surveys, nested in a school-based RHD prevalence study...
July 6, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28681803/molecular-biology-of-group-a-streptococcus-and-its-implications-in-vaccine-strategies
#8
REVIEW
N K Brahmadathan
Infections due to Streptococcus pyogenes and their complications are a problem of major concern in many countries, including India. Primary prophylaxis with benzathine penicillin is the key to control and prevent sequelae such as acute rheumatic fever and rheumatic heart disease (RF/RHD) or post-streptococcal glomerulonephritis (PSGN). Non-compliance to prophylaxis due to fear of injection and anaphylaxis is major issues in RF/RHD control in India and leads to continued high prevalence of infection and post-streptococcal sequelae...
April 2017: Indian Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28673022/secondary-prevention-for-screening-detected-rheumatic-heart-disease-opportunities-to-improve-adherence
#9
Daniel Engelman, Maureen Ah Kee, Reapi L Mataika, Joseph H Kado, Samantha M Colquhoun, Jim Tulloch, Andrew C Steer
Background: Secondary prevention is an effective treatment for rheumatic heart disease (RHD), but ensuring high adherence to prophylaxis over many years is challenging and requires understanding of local factors. Methods: Participants were young people diagnosed with RHD through echocardiographic screening in Fiji. We used a structured interview to evaluate the following: health seeking behaviours; attitudes, practice, barriers and potential improvement strategies for adherence to antibiotic prophylaxis; and adolescent-friendly qualities of the health service...
April 1, 2017: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28669963/-genotyping-of-rhd-negative-blood-samples-diagnosed-by-serological-tests-from-patients-waiting-for-kidney-transplantation
#10
Shao-Jie Fu, Yan-Lin Feng, Li-Xin Yu, Yun Miao, Min Luo, Yi-Bin Wang, Yi-Chen Li, Shu-Han Chen, Lu-Lu Xiao
OBJECTIVE: To compare the accuracy of serological and molecular approaches to identification of RhD-negative patients waiting for kidney transplantation. METHODS: A total of 103 RhD-negative blood samples by serological test were collected from patients waiting for kidney transplantation between January, 2006 and January, 2016. Quantitative PCR and sequencing were used to verify the results of RHD genotyping, and the false negative rates of the serological and molecular methods for RhD genotyping were compared...
June 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28669524/from-genetic-variability-to-phenotypic-expression-of-blood-group-systems
#11
L Raud, C Férec, Y Fichou
More than 300 red blood cell (RBC) antigens belonging to 36 blood group systems have been officially reported in humans by the International Society of Blood Transfusion (ISBT). Phenotypic variability is directly linked to the expression of the 41 blood group genes. The Rh blood group system, which is composed of 54 antigens, is the most complex and polymorphic system. Many rare genetic variants within the RH (RHD and RHCE) genes, involving various mutational mechanisms (single-nucleotide substitutions, short insertions/deletions, rearrangements, large deletions), have been reported in the literature and reference databases...
June 29, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28667769/resistance-to-rhd-virus-in-wild-australian-rabbits-comparison-of-susceptible-and-resistant-individuals-using-a-genome-wide-approach
#12
Nina I Schwensow, Harald Detering, Stephen Pederson, Camila Mazzoni, Ron Sinclair, David Peacock, John Kovaliski, Brian Cooke, Jörns Fickel, Simone Sommer
Deciphering the genes involved in disease resistance is essential if we are to understand host-pathogen co-evolutionary processes. The Rabbit Haemorrhagic Disease Virus (RHDV) was imported into Australia in 1995 as a biocontrol agent to manage one of the most successful and devastating invasive species, the European rabbit (Oryctolagus cuniculus). During the first outbreaks of the disease, RHDV caused mortality rates of up to 97%. Recently, however, increased genetic resistance to RHDV has been reported. Here, we have aimed to identify genomic differences between rabbits that survived a natural infection with RHDV and those that died in the field by using a genome-wide Next Generation Sequencing (NGS) approach...
July 1, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28657764/two-cases-of-the-variant-rhd-dau5-allele-associated-with-maternal-alloanti-d
#13
Jennifer A Duncan, Susan Nahirniak, Rodrigo Onell, Gwen Clarke
Rh is a complex blood group system with diverse genotypes that may encode weak and partial D variants. Standard serologic analysis may identify clinically significant D variants as D+; nevertheless, individuals with these D variants should be managed as D- patients to prevent antibody formation to absent D epitopes. Variant identification is necessary during pregnancy to allow for timely and appropriate Rh immune globulin (RhIG) prophylaxis for hemolytic disease of the fetus and newborn (HDFN) as D alloimmunization can occur with some D variants...
June 2017: Immunohematology
https://www.readbyqxmd.com/read/28653329/acquired-rhd-mosaicism-identifies-fibrotic-transformation-of-thrombopoietin-receptor-mutated-essential-thrombocythemia
#14
Celina Montemayor-Garcia, Rebecca Coward, Maher Albitar, Rupa Udani, Prachi Jain, Eleftheria Koklanaris, Minoo Battiwalla, Siobán Keel, Harvey G Klein, A John Barrett, Sawa Ito
BACKGROUND: Acquired copy-neutral loss of heterozygosity has been described in myeloid malignant progression with an otherwise normal karyotype. CASE REPORT: A 65-year-old woman with MPL-mutated essential thrombocythemia and progression to myelofibrosis was noted upon routine pretransplant testing to have mixed field reactivity with anti-D and an historic discrepancy in RhD type. The patient had never received transfusions or transplantation. RESULTS: Gel immunoagglutination revealed group A red blood cells and a mixed-field reaction for the D phenotype, with a predominant D-negative population and a small subset of circulating red blood cells carrying the D antigen...
June 26, 2017: Transfusion
https://www.readbyqxmd.com/read/28649781/anti-d-reagents-should-be-chosen-accordingly-to-the-prevalence-of-d-variants-in-the-obstetric-population
#15
Jelena Lukacevic Krstic, Slavica Dajak, Jasna Bingulac-Popovic, Vesna Dogic, Jela Mratinovic-Mikulandra
BACKGROUND: Resolving ambiguous results of D antigen typing is crucial for appropriate and rational administration of anti-D immunoprophylaxis and transfusion practice in obstetric population. The aim of the study was to establish selection criteria of anti-D reagents for our population. METHODS: A total of 12 689 samples from primiparous women in Split-Dalmatia County, Croatia, were typed for RhD antigen during the period of 5 years. Ambiguous results were submitted to additional serologic investigation and genotyping...
June 26, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28648573/personalized-treatment-with-immunoadsorption-and-intravenous-immunoglobulin-in-a-case-of-severe-rh-alloimmunization-during-pregnancy-unresponsive-to-plasma-exchange
#16
Anna Colpo, Tiziana Tison, Maria Teresa Gervasi, Cinzia Vio, Maria Vicarioto, Giustina De Silvestro, Piero Marson
INTRODUCTION: Despite prophylaxis, a small proportion of RhD-negative women may develop anti-D antibodies after a sensitizing event occurring during pregnancy or delivery of a D-positive baby. Intrauterine transfusion (IUT) is the treatment of choice in case of fetal anemia, but it cannot be performed early during pregnancy. Combined treatment with therapeutic plasma-exchange (TPE) and intravenous immunoglobulin (IVIG) can avoid or delay IUT. Immunoadsorption (IA) could represent a more effective treatment in selected cases...
June 6, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28643673/-allergy-to-drugs-experience-in-771-procedures
#17
María Cecilia Juri, Diego S Fernández Romero, Blas Larrauri, Eloísa Malbrán, Gabriela Torre, Alejandro Malbrán
Drug hypersensitivity reactions (RHD) are those that present clinically as allergic. They can or cannot involve an immunologic mechanism of lesion. They are frequent and, occasionally, life threatening. Patients with RHD repeat the reaction when they are re-exposed to the drug, limiting the therapeutic options and exposing them to more expensive and toxic drugs. It is difficult to identify the responsible drug when the reaction was not recent or when it occurred in the context of therapy with multiple drugs or confusing concurrent diseases...
2017: Medicina
https://www.readbyqxmd.com/read/28643361/screening-for-del-phenotype-in-rhd-negative-indians
#18
Swati Kulkarni, Disha S Parchure, Vidya Gopalkrishnan, Manisha Madkaikar
BACKGROUND: DEL phenotype represents a very weak form of D variant detected only by adsorption and elution technique. DEL phenotype individuals mistyped as RhD-negative can lead to alloimmunization after transfusion or pregnancy. Molecular techniques have now been used to identify DEL variants. They are commonly encountered in the East Asian population with RHD(K409K) being the most frequent allele. RHD(M295I) is the most common DEL allele in Caucasians. As there is a paucity of data on DEL phenotype in the Indian population, the study aims to screen RhD negative individuals for two most common DEL mutations...
June 23, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28641659/-experimental-study-on-neonatal-abo-or-rhd-compatible-blood-transfusion
#19
Wei Liu, Ai-Ping LE, Jing-Han Liu, Jiong-Cai Lan
OBJECTIVE: To investigate the safety and effectiveness of neonatal ABO or Rh(D) by using compatible blood transfusion through retrospective analysis of data from cases received compatible blood transfusion and type matched blood transfusion. METHODS: The clinical data of 26 cases of neonatal compatible blood transfusion in Chinese Nanchang area from January 2014 to October 2016 were collected, and 26 cases of neonatal type-matched blood transfusion were selected according to ratio of 1:1 cases...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28639307/anti-d-in-a-mother-hemizygous-for-the-variant-rhd-dnb-gene-associated-with-hemolytic-disease-of-the-fetus-and-newborn
#20
Kelli M Quantock, Genghis H Lopez, Catherine A Hyland, Yew-Wah Liew, Robert L Flower, Frans J Niemann, Arthur Joyce
BACKGROUND: Individuals with the partial D phenotype when exposed to D+ red blood cells (RBCs) carrying the epitopes they lack may develop anti-D specific for the missing epitopes. DNB is the most common partial D in Caucasians and the clinical significance for anti-D in these individuals is unknown. STUDY DESIGN AND METHODS: This article describes the serologic genotyping results and clinical manifestations in two group D+ babies of a mother presenting as group O, D+ with alloanti-D...
June 21, 2017: Transfusion
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