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Red cell autoantibody

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https://www.readbyqxmd.com/read/28596226/autoimmune-hemolytic-anemia-associated-with-trimethoprim-sulfamethoxazole-use
#1
Jillian Frieder, Jason Aboudi Mouabbi, Rami Zein, Tariq Hadid
PURPOSE: A case report of drug-induced immune hemolytic anemia (DIIHA) triggered by exposure to trimethoprim-sulfamethoxazole is presented along with a brief review of the pathophysiology of DIIHA and diagnostic considerations. SUMMARY: A 58-year-old woman recently initiated on trimethoprim-sulfamethoxazole for treatment of a urinary tract infection presented to the emergency department with generalized weakness and fatigue. Initial laboratory studies were significant for the following values: hemoglobin concentration, 5...
June 15, 2017: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/28568311/defining-the-clinical-relevance-of-red-blood-cell-autoantibodies-by-monocyte-monolayer-assay
#2
Marina C A V Conrado, Amanda N D'Avila, Juliana B Vieira, Silvia L Bonifacio, Francisco C A Gomes, Marcia R Dezan, Valeria B Oliveira, Ingrid H Ribeiro, Luciana T C M Tucunduva, Alfredo Mendrone-Júnior, Vanderson Rocha, Carla L Dinardo
BACKGROUND: The Monocyte Monolayer Assay (MMA) is an in vitro simulation of red blood cell (RBC) alloantibody behavior. It has been classically applied to predict the risks of post-transfusion hemolytic reactions when transfusing incompatible RBC units. Quantifying erythrophagocytosis by MMA may be an interesting option for situations where there is doubt whether a RBC autoantibody is mediating significant hemolysis. Here, we present three situations involving RBC autoantibodies in which the MMA was decisive for clarifying the diagnosis and choosing the best clinical treatment...
May 31, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28511387/erythrocyte-alloimmunization-and-autoimmunization-among-blood-donors-and-recipients-visiting-a-tertiary-care-hospital
#3
Daljit Kaur, Lovenish Bains, Manoj Kandwal, Indu Parmar
INTRODUCTION: The ultimate aim of pretransfusion testing is the acceptable survival of donor red cells in recipient's body and antibody detection plays a critical role in achieving the same. The cornerstone of antibody detection method is detecting an unexpected antibody as against the expected antibodies of ABO blood group system. Autoantibodies can also interfere with the detection of clinically significant alloantibodies. AIM: To study the frequency of alloantibodies and autoantibodies in the healthy blood donors and patient population visiting our hospital...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28455817/induction-of-il-10-cytokine-and-the-suppression-of-t-cell-proliferation-by-specific-peptides-from-red-cell-band-3-and-in-vivo-effects-of-these-peptides-on-autoimmune-hemolytic-anemia-in-nzb-mice
#4
Abdel-Rahman Youssef, Christopher J Elson
PURPOSE: The anion channel protein band 3 is the main target of the pathogenic red blood cells (RBC) autoantibodies in New Zealand black (NZB) mice. CD4 T cells from NZB mice with autoimmune hemolytic anemia respond to band 3. Previously, we have shown that IL-10 and peptides containing a dominant T cell epitope from red cell band 3 modulate autoimmune hemolytic anemia in NZB mice. Because of the immunoregulatory role of IL-10 in autoimmune diseases, we aim to identify individual band 3 peptides that induce high IL-10 production and simultaneously suppress CD4 T cell proliferation and to investigate the effect intranasal administration of IL-10 producing band 3 peptides on autoantibody responses of NZB mice...
December 2017: Auto- Immunity Highlights
https://www.readbyqxmd.com/read/28451873/association-of-anti-triosephosphate-isomerase-antibodies-with-aseptic-meningitis-in-patients-with-neuropsychiatric-systemic-lupus-erythematosus
#5
Shuzo Sato, Makiko Yashiro, Tomoyuki Asano, Hiroko Kobayashi, Hiroshi Watanabe, Kiyoshi Migita
Autoantibodies to triosephosphate isomerase (TPI), which is an important glycolytic enzyme in red blood cells and neuronal cells, have been reported to be associated with neuropsychiatric systemic lupus erythematosus (NPSLE) pathogenesis. However, the clinical features regarding anti-TPI antibody (anti-TPI)-positive NPSLE are not yet known. The aim of this study is to investigate the clinical features of anti-TPI-positive NPSLE patients using anti-TPI index values determined by enzyme-linked immunosorbent assay (ELISA)...
April 28, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28443948/relapse-of-congenital-thrombotic-thrombocytopenic-purpura-after-spontaneous-remission-in-a-second-trimester-primigravida-case-report-and-review-of-the-literature
#6
Donavan de Souza Lúcio, Jacqueline Foelkel Pignatari, Marcelo Gil Cliquet, Henri Augusto Korkes
CONTEXT: Thrombotic microangiopathy syndrome or thrombotic thrombocytopenic purpura-hemolytic uremic syndrome (TTP-HUS) describes distinct diseases sharing common pathological features: microangiopathic hemolytic anemia and thrombocytopenia, without any other apparent cause. CASE REPORT: An 18-year-old second-trimester primigravida presented with a history of fifteen days of intense weakness, followed by diarrhea over the past six days. She reported having had low platelets since childhood, but said that she had never had bleeding or menstrual abnormalities...
April 20, 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28425751/development-of-red-blood-cell-autoantibodies-following-treatment-with-checkpoint-inhibitors-a-new-class-of-anti-neoplastic-immunotherapeutic-agents-associated-with-immune-dysregulation
#7
Laura L Cooling, John Sherbeck, Jonathon C Mowers, Sheri L Hugan
Ipilimumab, nivolumab, and pembrolizumab represent a new class of immunotherapeutic drugs for treating patients with advanced cancer. Known as checkpoint inhibitors, these drugs act to upregulate the cellular and humoral immune response to tumor antigens by inhibiting T-cell autoregulation. As a consequence, they can be associated with immune-related adverse events (irAEs) due to loss of self-tolerance, including rare cases of immune-related cytopenias. We performed a retrospective clinical chart review, including serologic, hematology, and chemistry laboratory results, of two patients who developed red blood cell (RBC) autoantibodies during treatment with a checkpoint inhibitor...
January 2017: Immunohematology
https://www.readbyqxmd.com/read/28402005/prevalence-and-risk-factors-for-red-blood-cell-alloimmunization-in-175-children-with-sickle-cell-disease-in-a-french-university-hospital-reference-centre
#8
Slimane Allali, Thierry Peyrard, Denise Amiranoff, Jérémie F Cohen, Martin Chalumeau, Valentine Brousse, Mariane de Montalembert
Patients with sickle cell disease (SCD) show a high prevalence of red blood cell (RBC) alloimmunization, but few studies have focused on children. We aimed to study the prevalence and risk factors of RBC alloimmunization in SCD children. We retrospectively analysed the medical and transfusion files for 245 SCD children hospitalized in our centre in 2014 and included 175 patients who had received at least one RBC unit in their lifetime. The main clinical and immuno-haematological characteristics of alloimmunized and non-alloimmunized patients were compared...
April 12, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28316442/alloimmunization-in-autoimmune-hemolytic-anemia-patient-the-differential-adsorption-approach
#9
Ravi C Dara, Aseem Kumar Tiwari, Dinesh Arora, Subhasis Mitra, Devi Prasad Acharya, Geet Aggarwal, Jyoti Sharma
Patients of β-thalassemia major are dependent on regular blood transfusions for their entire lifetime. Development of antibodies against red blood cell (RBC) antigen which may be alloantibody or autoantibody, several times as a result of frequent red cell component transfusions, further complicates the subsequent transfusion therapy. Among the autoantibodies, warm-reactive autoantibodies are commoner and interfere in the pretransfusion testing. These RBC autoantibodies present in patient's serum potentially react with all the cells of antibody identification panel giving "pan-reactive" picture and making alloantibody identification complex...
January 2017: Asian Journal of Transfusion Science
https://www.readbyqxmd.com/read/28286630/a-fatal-case-of-immune-hyperhemolysis-with-bone-marrow-necrosis-in-a-patient-with-sickle-cell-disease
#10
Matthew S Karafin, Arun Singavi, Susan T Johnson, Joshua J Field
In patients with sickle cell disease, hyperhemolysis is a rare but life-threatening complication of transfusion. In this case report, we describe a 61 year-old woman with hemoglobin sickle cell (SC) disease and history of alloimmunization who developed hyperhemolysis associated with a transfusion. She was found to have a warm and a clinically-significant cold autoantibody. Severe anemia (Hb 2.7 g/dL) with reticulocytopenia and thrombocytopenia prompted a bone marrow biopsy, which demonstrated extensive bone marrow necrosis...
February 23, 2017: Hematology Reports
https://www.readbyqxmd.com/read/28261116/red-flags-clinical-signs-for-identifying-autoimmune-encephalitis-in-psychiatric-patients
#11
Julia Herken, Harald Prüss
Autoimmune mechanisms causing diverse psychiatric symptoms are increasingly recognized and brought about a paradigm shift in neuropsychiatry. Identification of underlying antibodies against neuronal ion channels or receptors led to the speculation that a number of patients go misdiagnosed with a primary psychiatric disease. However, there is no clear consensus which clinical signs in psychiatric patients should prompt further investigations including measurement of anti-neuronal autoantibodies. We therefore aimed to analyze the presenting symptoms in patients with autoimmune encephalitis and the time between symptom onset and initiation of antibody diagnostics...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28210632/increased-interleukin-17f-is-associated-with-elevated-autoantibody-levels-and-more-clinically-relevant-than-interleukin-17a-in-primary-sj%C3%A3-gren-s-syndrome
#12
Yuzhou Gan, Xiaozhen Zhao, Jing He, Xu Liu, Yun Li, Xiaolin Sun, Zhanguo Li
Th17 related immune response is pathogenic in primary Sjögren's syndrome (pSS). However, the role of IL-17F, one potent inflammatory member of IL-17 family cytokines in pSS, has not been specifically defined. We recruited one hundred and nine pSS patients and forty-two healthy controls and their serum levels of IL-17A and IL-17F were determined by multiplex cytokine assays. White blood cell, red blood cell, neutrophil, lymphocyte, IgM, IgG, C3, C4, RF, ANA, anti-SSA antibody, and anti-SSB antibody were measured by standard laboratory techniques...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28203425/false-positive-hepatitis-c-antibody-test-results-in-left-ventricular-assist-device-recipients-increased-risk-with-age-and-transfusions
#13
Grace Y Minamoto, Doreen Lee, Adriana Colovai, Dana Levy, Ljiljana Vasovic, Keith W Roach, Jonathan Shuter, Daniel Goldstein, David D'Alessandro, Ulrich P Jorde, Victoria A Muggia
Left ventricular assist devices (LVADs) have been successfully used in patients with heart failure. However, LVADs may trigger immune activation, leading to higher frequencies of autoantibodies. We describe the clinical, epidemiological, and laboratory characteristics of LVAD recipients with false positive hepatitis C (FPHC) serology among 39 consecutive adult LVAD recipients who bridged to heart transplantation from January 2007 to January 2013 at Montefiore Medical Center. FPHC patients were identified as those with post-LVAD positive hepatitis C ELISA antibody tests and negative confirmatory testing with hepatitis C RNA PCR and/or radioimmunoblot assay...
January 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28197963/a-concise-review-of-autoimmune-cytopenias-in-chronic-lymphocytic-leukemia
#14
REVIEW
Mazie Tsang, Sameer A Parikh
Chronic lymphocytic leukemia (CLL) is frequently associated with autoimmune complications such as autoimmune hemolytic anemia, immune thrombocytopenia, pure red cell aplasia, and autoimmune granulocytopenia. It is critical to diagnose cytopenias from these secondary complications of CLL accurately, since prognosis and therapy are substantially different from patients who have cytopenias due to extensive bone marrow infiltration by CLL. The pathogenesis of autoimmune cytopenias in CLL is complex; and it involves antigen presentation by CLL cells to polyclonal B cells resulting in production of autoantibody, and alteration of the T cell milieu tilting the balance in favor of an autoimmune response...
February 2017: Current Hematologic Malignancy Reports
https://www.readbyqxmd.com/read/28191814/the-pathophysiologic-basis-of-anaemia-in-patients-with-malignant-diseases
#15
Umma A Ibrahim, Aminu A Yusuf, Sagir G Ahmed
Cancer patients frequently present with anaemia that may result from the direct or indirect effects of the tumor or its treatment. Anaemia is an independent adverse prognostic factor that exerts negative influence on quality of life and survival of cancer patients. Anaemia in malignant disorders often arises from an interplay of multiple aetiological and pathophysiologic mechanisms. Understanding these mechanisms will help the oncologist identify and treat specific causes of the anaemia thereby minimizing the use of blood transfusion, which is associated with many adverse effects...
September 2016: Gulf Journal of Oncology
https://www.readbyqxmd.com/read/28164544/clinical-significance-of-red-blood-cell-distribution-width-and-inflammatory-factors-for-the-disease-activity-in-rheumatoid-arthritis
#16
Li Yunchun, Wang Yue, Fang Z Jun, Su Qizhu, Ding Liumei
BACKGROUND: To evaluate the significance of red blood cell distribution width (RDW) and other factors for the disease activity in rheumatoid arthritis (RA). METHODS: Each patient underwent clinical examination and blood sampling for assessment of serum high-sensitivity C-reactive protein (hs-CRP) levels, erythrocyte sedimentation rate (ESR), hemoglobin concentration (Hb), hematocrit (HCT), RDW, and other erythrocyte parameters (mean corpuscular volume [MCV], mean cell Hb [MCH], mean corpuscular Hb concentration [MCHC])...
December 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28117787/use-of-a-monocyte-monolayer-assay-to-evaluate-fc%C3%AE-receptor-mediated-phagocytosis
#17
Tik Nga Tong, Donald R Branch
Although originally developed for predicting transfusion outcomes of serologically incompatible blood, the monocyte monolayer assay (MMA) is a highly versatile in vitro assay that can be modified to examine different aspects of antibody and Fcγ receptor (FcγR)-mediated phagocytosis in both research and clinical settings. The assay utilizes adherent monocytes from peripheral blood mononuclear cells isolated from mammalian whole blood. MMA has been described for use in both human and murine investigations. These monocytes express FcγRs (e...
January 2, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27984639/exacerbation-of-oxidative-stress-during-sickle-vaso-occlusive-crisis-is-associated-with-decreased-anti-band-3-autoantibodies-rate-and-increased-red-blood-cell-derived-microparticle-level-a-prospective-study
#18
Régine Hierso, Nathalie Lemonne, Rinaldo Villaescusa, Marie-Laure Lalanne-Mistrih, Keyne Charlot, Maryse Etienne-Julan, Benoit Tressières, Yann Lamarre, Vanessa Tarer, Yohann Garnier, Ada Arce Hernandez, Serge Ferracci, Philippe Connes, Marc Romana, Marie-Dominique Hardy-Dessources
Painful vaso-occlusive crisis, a hallmark of sickle cell anaemia, results from complex, incompletely understood mechanisms. Red blood cell (RBC) damage caused by continuous endogenous and exogenous oxidative stress may precipitate the occurrence of vaso-occlusive crises. In order to gain insight into the relevance of oxidative stress in vaso-occlusive crisis occurrence, we prospectively compared the expression levels of various oxidative markers in 32 adults with sickle cell anaemia during vaso-occlusive crisis and steady-state conditions...
March 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/27917465/warm-reactive-immunoglobulin-g-autoantibodies-and-laboratory-testing-best-practices-review-of-the-literature-and-survey-of-current-practice
#19
REVIEW
Alyssa Ziman, Claudia Cohn, Patricia M Carey, Nancy M Dunbar, Mark K Fung, Andreas Greinacher, Simon Stanworth, Nancy M Heddle, Meghan Delaney
BACKGROUND: Warm-reactive autoantibodies (WAAs) are the most common cause of autoimmune hemolytic anemia (AIHA) and can also be present without clinically significant hemolysis. WAAs complicate immunohematological testing, yet there is no commonly accepted approach to laboratory evaluation and red blood cell (RBC) selection. STUDY DESIGN AND METHODS: We searched PubMed/Cochrane Central for articles that described testing methodology and blood selection for patients with WAAs...
February 2017: Transfusion
https://www.readbyqxmd.com/read/27913548/warm-antibody-autoimmune-hemolytic-anemia
#20
REVIEW
Theodosia A Kalfa
Autoimmune hemolytic anemia (AIHA) is a rare and heterogeneous disease that affects 1 to 3/100 000 patients per year. AIHA caused by warm autoantibodies (w-AIHA), ie, antibodies that react with their antigens on the red blood cell optimally at 37°C, is the most common type, comprising ∼70% to 80% of all adult cases and ∼50% of pediatric cases. About half of the w-AIHA cases are called primary because no specific etiology can be found, whereas the rest are secondary to other recognizable underlying disorders...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
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