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Immune thrombocytopenia

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https://www.readbyqxmd.com/read/28525829/epidemiology-and-management-of-primary-immune-thrombocytopenia-a-nationwide-population-based-study-in-korea
#1
Ji Yun Lee, Ju-Hyun Lee, Heeyoung Lee, Beodeul Kang, Ji-Won Kim, Se Hyun Kim, Jeong-Ok Lee, Jin Won Kim, Yu Jung Kim, Keun-Wook Lee, Jee Hyun Kim, Hyoung Soo Choi, Jong Seok Lee, Soo-Mee Bang
INTRODUCTION: The epidemiology of immune thrombocytopenia (ITP) is not well characterized in an Asian population. MATERIALS AND METHODS: From July 2010 to June 2014, ITP patients were identified using the Korean Health Insurance Review and Assessment Service database. RESULTS: The overall incidence rate of ITP was 5.3 per 100,000 person-years (95% CI: 5.1-5.5). The overall incidence rate ratios of children under 15years old to adults and females to males were 3...
May 11, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28511637/the-cytokine-polymorphisms-affecting-th1-th2-increase-the-susceptibility-to-and-severity-of-chronic-itp
#2
Noriyuki Takahashi, Takayuki Saitoh, Nanami Gotoh, Yasuhiro Nitta, Lobna Alkebsi, Tetsuhiro Kasamatsu, Yusuke Minato, Akihiko Yokohama, Norifumi Tsukamoto, Hiroshi Handa, Hirokazu Murakami
BACKGROUND: T-helper cell type 1 (Th1) polarization in chronic immune thrombocytopenia (cITP) has been reported at the protein and mRNA levels. We evaluated the impact of Th1/Th2 cytokine and cytokine receptor functional polymorphisms on both susceptibility to, and severity of, cITP. We analysed IFN-γ + 874 T/A, IFN-γR -611G/A, IL-4 -590C/T, and IL-4Rα Q576R polymorphisms in 126 cITP patients (male/female: 34/92; median age: 47.7 years) and 202 healthy control donors. Genotyping was determined by PCR and direct sequencing...
May 16, 2017: BMC Immunology
https://www.readbyqxmd.com/read/28506517/fish-oil-supplementation-benefits-the-murine-host-during-the-acute-phase-of-a-parasitic-infection-from-trypanosoma-cruzi
#3
Maria I Lovo-Martins, Aparecida D Malvezi, Rosiane V da Silva, Nágela G Zanluqui, Vera L H Tatakihara, Niels O S Câmara, Ana Paula L de Oliveira, Jean P S Peron, Marli C Martins-Pinge, Kevin L Fritsche, Phileno Pinge-Filho
Long-chain omega-3 polyunsaturated fatty acids (LC n-3 PUFA) are known to modulate a variety of immune cell functions. On occasion, this has led to diminished host resistance to certain viral and bacterial infections. Little is known about the impact of n-3 PUFA on host resistance to parasitic infection, however, based on results from a small study conducted more than two decades ago, we hypothesized that providing mice LC n-3 PUFA will diminish host resistance to Trypanosoma cruzi, the parasitic pathogen responsible for Chagas disease...
April 25, 2017: Nutrition Research
https://www.readbyqxmd.com/read/28496360/epidural-anesthesia-for-labor-and-delivery-in-a-patient-with-may-hegglin-anomaly-a-case-report
#4
Annas Muhammad Muzannar, Mohammed Al Harbi, Raza Rathore, Nasser Tawfeeq, Freddie Wambi, Nasir Mahmood, Sonia Albrechtova, Vassilios Dimitriou
We report a case of May-Hegglin anomaly (MHA) in a woman who had a successful labor and delivery under epidural anesthesia. MHA is an inherited thrombocytopenia easily misdiagnosed as idiopathic (immune) thrombocytopenic purpura (ITP). Early and appropriate diagnosis of MHA during pregnancy is essential for optimal maternal and neonatal delivery outcome. Additionally, it can avoid unnecessary diagnostic studies, such as bone marrow aspiration and biopsy, and even harmful therapies with corticosteroids, immunosuppressive agents, and splenectomy...
2017: Local and Regional Anesthesia
https://www.readbyqxmd.com/read/28491434/life-threatening-haematological-complication-occurring-in-a-cat-after-chronic-carbimazole-administration
#5
Andrea Mosca, Luca Bresciani
CASE SUMMARY: An 11-year-old spayed female domestic shorthair cat with a history of hyperthyroidism treated with carbimazole for 7 months was presented for a check-up after a few episodes of vomiting. The cat had been receiving prednisolone at 0.5 mg/kg PO q12h for recent pancreatitis and concurrent inflammation of liver and small intestines confirmed by biopsies. Clinical examination revealed pale mucous membranes with a capillary refill time of <2 s. Haematology showed severely decreased packed cell volume (16%), and increased prothrombin time (42 s), partial thromboplastin time (>120 s) and fibrinogen serum concentration (3...
July 2016: JFMS Open Rep
https://www.readbyqxmd.com/read/28479030/platelets-and-immunity-from-physiology-to-pathology
#6
O Garraud, A Chabert, H Hamzeh-Cognasse, S Laradi, F Cognasse
Blood platelets are cells acting during primary haemostasis. The thrombocytopenia observed in many different types of infectious processes begs the question of the relationship between cells and infectious pathogens and the role of platelets in the detection of biological hazards. This in turn brings us back to the role of platelets - via their molecular, membrane and secretory arsenal - in the detection and repair of vascular hazards. The common denominator between a breakdown of haemostasis and the risk of infection has been shown to be a cutoff point in the inflammatory continuum between physiology and physiopathology...
May 4, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28473904/from-chronic-immune-thrombocytopenia-to-severe-aplastic-anemia-recent-insights-into-the-evolution-of-eltrombopag
#7
REVIEW
Harinder Gill, Raymond S M Wong, Yok-Lam Kwong
Thrombopoietin (TPO) is the most potent cytokine stimulating thrombopoiesis. Therapy with exogenous TPO is limited by the formation of antibodies cross-reacting with endogenous TPO. Mimetics of TPO are compounds with no antigenic similarity to TPO. Eltrombopag is an orally-active nonpeptide small molecule that binds to the transmembrane portion of the TPO receptor MPL. Initial trials of eltrombopag have centered on immune thrombocytopenia (ITP), which is due to both increased destruction and decreased production of platelets...
May 2017: Therapeutic Advances in Hematology
https://www.readbyqxmd.com/read/28469947/successful-long-term-use-of-eltrombopag-in-a-patient-with-refractory-severe-thrombocytopenia-associated-with-chronic-lymphocytic-leukemia-that-allowed-oral-anticoagulant-treatment-for-severe-cardiomyopathy
#8
Juárez Salcedo Luis Miguel, Gil-Fernández Juan José
Autoimmune cytopenias (AICs) are frequently associated with chronic lymphocytic leukemia (CLL). The most common of these AICs is autoimmune hemolytic anemia (AIHA); the second most is immune thrombocytopenia (ITP). Here, we report on a patient with CLL-associated ITP, with thrombocytopenia refractory to corticosteroids and intravenous immunoglobulins, in which continuous oral treatment with Eltrombopag allowed initiation and maintenance of an oral anticoagulation treatment with Acenocoumarol that was indicated because of a severe arrhythmogenic cardiomyopathy...
2017: Case Reports in Hematology
https://www.readbyqxmd.com/read/28466476/numerical-and-functional-defects-in-cd8-cd28-t-suppressor-lymphocytes-from-patients-with-primary-immune-thrombocytopenia
#9
Huiyuan Li, Yating Hao, Donglei Zhang, Wenjie Liu, Yang Li, Mingen Lyu, Rongfeng Fu, Feng Xue, Xiaofan Liu, Renchi Yang
Primary immune thrombocytopenia (ITP) is an acquired autoimmune disorder, and loss of immune tolerance has been implicated in ITP pathogenesis. CD8(+) CD28(-) suppressor (Ts) cells have an immunosuppression function and are involved in several autoimmune disorders. However, the role of Ts cells in ITP is currently not clear. Here, flow cytometry was used to detect the CD8(+) CD28(-) CD127(-) proportion, which was decreased in active ITP patients compared with that of controls. Function analysis showed that immunosuppression of CD8(+) CD28(-) Ts cells in ITP patients was impaired...
May 3, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28458583/current-perspectives-on-fetal-and-neonatal-alloimmune-thrombocytopenia-increasing-clinical-concerns-and-new-treatment-opportunities
#10
REVIEW
Heidi Tiller, Anne Husebekk, Maria Therese Ahlen, Tor B Stuge, Bjørn Skogen
Differences in platelet type between the fetus and the mother can lead to maternal immunization and destruction of the fetal platelets, a condition named fetal and neonatal alloimmune thrombocytopenia (FNAIT). FNAIT is reported to occur in ~1 per 1,000 live born neonates. The major risk is intracranial hemorrhage in the fetus or newborn, which is associated with severe neurological complications or death. Since no countries have yet implemented a screening program to detect pregnancies at risk, the diagnosis is typically established after the birth of a child with symptoms...
2017: International Journal of Women's Health
https://www.readbyqxmd.com/read/28458317/long-term-eculizumab-treatment-contributes-to-recovery-from-end-stage-renal-disease-caused-by-atypical-hemolytic-uremic-syndrome
#11
Yuji Yamada, Ryohei Abe, Yutaka Okano, Yoshitaka Miyakawa
We experienced a favorable outcome in an adult case of atypical hemolytic uremic syndrome (aHUS) after long-term eculizumab treatment. A 38-year-old Japanese man with a history of central retinal vein occlusion was admitted to our hospital with progressive dyspnea. He was found to have non-immune hemolytic anemia, thrombocytopenia, and acute renal failure two weeks after an episode of the common cold. Plasma exchange was ineffective; therefore, we initiated eculizumab after we excluded other thrombotic microangiopathies...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28454370/methylation-of-cdkn2b-cpg-islands-is-associated-with-upregulated-telomerase-activity-in-children-with-acute-lymphoblastic-leukemia
#12
Qian Hu, Xiaowen Chen, Sixi Liu, Ruiqi Wen, Xiuli Yuan, Dandan Xu, Guosheng Liu, Feiqiu Wen
The aim of the present study was to investigate the association between methylation of cyclin-dependent kinase inhibitor 2B (CDKN2B) CpG islands and telomerase activity in children with acute lymphoblastic leukemia (ALL). A total of 72 children with ALL and 12 children with immune thrombocytopenia (ITP) were subjected to bone marrow aspiration and methylation-specific polymerase chain reaction analysis, and modified telomeric repeat amplification protocol assay analyses, to evaluate CDKN2B methylation and telomerase activity, respectively...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28453897/clinical-outcome-of-childhood-chronic-immune-thrombocytopenia-a-38-year-experience-from-a-single-tertiary-center-in-thailand
#13
Thirachit Chotsampancharoen, Pornpun Sripornsawan, Sarapee Duangchoo, Malai Wongchanchailert, Edward McNeil
BACKGROUND: There is limited information on long-term follow-up and prognostic factors for remission among children diagnosed with chronic immune thrombocytopenia (ITP). The aim of this study was to determine clinical outcomes and factors influencing remission in childhood chronic ITP. STUDY DESIGN: The hospital records of children aged 0-15 years diagnosed with chronic ITP were retrospectively reviewed. Kaplan-Meier curves were fit to estimate the median time to complete remission with 95% confidence intervals (CIs)...
April 28, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28446143/igg4-related-membranous-glomerulonephritis-and-generalized-lymphadenopathy-without-pancreatitis-a-case-report
#14
Justine Huart, Stéphanie Grosch, Christophe Bovy, Michel Moutschen, Jean-Marie Krzesinski
BACKGROUND: IgG4-related disease is a recently described pathologic entity. This is the case of a patient with nephrotic syndrome and lymphadenopathy due to IgG4-related disease. Such a kidney involvement is quite peculiar and has only been described a few times recently. Renal biopsy showed a glomerular involvement with membranous glomerulonephritis in association with a tubulo-interstitial nephropathy. Moreover, the patient was not suffering from pancreatitis. CASE PRESENTATION: The patient is a middle-aged man of Moroccan origin...
April 26, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28444757/hypocobalaminaemia-as-a-cause-of-bone-marrow-failure-and-pancytopenia-in-a-cat
#15
E L Stanley, A E Eatroff
CASE REPORT: A male Domestic Short-hair cat was presented for chronic weight loss, lethargy and hyporexia. Complete haematological examination revealed non-regenerative anaemia, neutropenia and thrombocytopenia, as well as Howell-Jolly bodies, anisocytosis, polychromasia and macrocytosis on blood smear evaluation. Histopathological evaluation of bone marrow biopsy disclosed hypocellularity consistent with bone marrow failure. Concurrent hypocobalaminaemia was identified and treated with parenteral cyanocobalamin supplementation...
May 2017: Australian Veterinary Journal
https://www.readbyqxmd.com/read/28444742/the-effect-of-rituximab-on-anti-platelet-autoantibody-levels-in-patients-with-immune-thrombocytopenia
#16
Donald M Arnold, John R Vrbensky, Nadia Karim, James W Smith, Yang Liu, Nikola Ivetic, John G Kelton, Ishac Nazy
Rituximab is an effective therapy resulting in a platelet count improvement in 60% of patients with immune thrombocytopenia (ITP). Rituximab depletes B cells; thus, a reduction in platelet autoantibody levels would be anticipated in patients who achieve a clinical response to this treatment. The objectives of this study were to determine whether rituximab was associated with a reduction in platelet autoantibody levels, and to correlate the loss of autoantibodies with the achievement of a treatment response...
April 25, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28444667/clinical-significance-of-antinuclear-and-antiextractable-nuclear-antigen-antibody-in-childhood-immune-thrombocytopenia
#17
Qihui Liu, Hongzhen Xu, Xianmin Guan, Yali Shen, Xianhao Wen, Yuxia Guo, Jie Yu, Yongchun Su
This study aims to determine the clinical significance of positive antinuclear/antiextractable nuclear antigen (ANA/A-ENA) antibody on manifestation and therapeutic response of childhood immune thrombocytopenia (ITP). Overall, 1,330 patients aged between 1 and 15.6 years diagnosed with primary ITP were retrospectively analyzed, excluding those with secondary ITP. Bleeding manifestations were recorded. All patients underwent autoantibody testing and follow-up for 32 months on average (range: 23-54 months). Steroid response was also assessed...
April 25, 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28442528/inflammatory-bowel-disease-and-immune-thrombocytopenic-purpura-combined-immune-dysregulation-in-an-adolescent
#18
Karen Queliza, Faith D Ihekweazu, Arshaan Ali, Richard Kellermayer
Concomitant inflammatory bowel disease (IBD) and immune thrombocytopenic purpura (ITP) is a rare phenomenon. A shared immunologic pathway leading to mucosal inflammation and platelet destruction has been proposed. We report a case of a 14-year-old male who presented with abdominal pain, hematochezia, weight loss, and thrombocytopenia. Endoscopic and hematologic evaluations led to the diagnosis of ulcerative colitis (UC) and ITP, respectively. Initial treatment of his UC resulted in improvement in both gastrointestinal symptoms and platelet count...
March 2017: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/28441942/rare-antibody-associated-hemolytic-transfusion-reaction-and-transfusion-related-acute-lung-injury-a-case-report
#19
Tim N Beck, Natalee G Young, Michelle L Erickson, Ignacio Prats
BACKGROUND: Hemolytic transfusion reactions and transfusion-related acute lung injury (TRALI) are life-threatening complications associated with the transfusion of blood products. Hemorrhage is one of the most common surgical complications and the risk of bleeding is particularly acute in patients with hematologic deficiencies. Management of surgical bleeding can be divided into two phases. The first phase centers on immediate control of acute bleeding and the second phase focuses on keeping the patient stable and on reducing the sequelae associated with blood transfusions and blood loss...
April 26, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28441851/-quantities-and-function-of-nk-cells-in-patients-with-immune-thrombocytopenia
#20
Y J Zhang, W Qu, H Liu, Y H Wang, C Y Liu, L J Li, H Q Wang, R Fu, L M Xing, Z H Shao
Objective: To investigate natural killer (NK) cell quantities and function in patients with immune thrombocytopenia (ITP) . Methods: A total of 66 ITP patients (34 newly diagnosed and 32 in complete remission) were collected from September 2015 to May 2016 in Tianjin Medical University General Hospital, and 30 healthy volunteers were recruited as controls. The percentages of NK cells and their subsets in peripheral blood, the expression of activating receptor (NKp44), inhibitory receptor (NKG2A) and CD16, perforin and granzyme β were detected by flow cytometry...
April 25, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
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