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primary immune thrombocytopenia

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https://www.readbyqxmd.com/read/28629237/improved-pregnancy-outcome-following-earlier-splenectomy-in-women-with-immune-thrombocytopenia-a-5-year-observational-study
#1
Mohamed Rezk, Alaa Masood, Ragab Dawood, Mahmoud Emara, Hanan El-Sayed
OBJECTIVE: to assess prospectively the maternal and fetal outcome in women with immune thrombocytopenic purpura (ITP) who undergone earlier splenectomy compared to women on medical therapy. METHODS: a 5-year observational study included pregnant women in the first trimester previously diagnosed with primary ITP with 74 patients underwent splenectomy before pregnancy and 86 patients on medical therapy. Patients were followed throughout pregnancy and labor to record their obstetric outcome...
June 19, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28592772/current-topics-in-primary-immune-thrombocytopenia
#2
Yoshiaki Tomiyama
Primary immune thrombocytopenia (ITP) is an autoimmune disorder characterized by early platelet destruction due to antiplatelet autoantibodies. Recently, significant progress has been made regarding the pathophysiology of ITP. Nonetheless, the diagnosis of ITP in daily clinical practice is still based on differential diagnosis because of the lack of laboratory tests that can diagnose autoimmunity in ITP. In this chapter, the recent topics regarding the diagnosis and management of ITP have been reviewed.
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28578979/hiv-associated-kidney-diseases-clarifying-concordance-between-renal-failure-in-hiv-infection-and-histopathologic-manifestations-at-kidney-biopsy
#3
REVIEW
Carla L Ellis
Patients with HIV infection have a wide spectrum of renal diseases. Some are known to be the direct effect of the viral infection while others are renal diseases that also occur in uninfected populations. HIV associated nephropathy (HIVAN) is considered to be a subtype of primary focal and segmental glomerulosclerosis that is distinct in HIV infected patients. It is more frequent in the African-American population and associated with mutations of the apolipoprotein L1 (APOL1) gene. HIV associated immune complex kidney disease (HIVICD) encompasses a spectrum of HIV associated renal diseases characterized by the presence of immune complex deposition within glomeruli...
July 2017: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/28577662/human-platelet-antigens-and-primary-immune-thrombocytopenia
#4
Vagner Castro
No abstract text is available yet for this article.
April 2017: Revista Brasileira de Hematologia e Hemoterapia
https://www.readbyqxmd.com/read/28573819/use-of-eltrombopag-for-secondary-immune-thrombocytopenia-in-clinical-practice
#5
Tomás J González-López, María T Alvarez-Román, Cristina Pascual, Blanca Sánchez-González, Fernando Fernández-Fuentes, Gloria Pérez-Rus, José A Hernández-Rivas, Silvia Bernat, José M Bastida, María P Martínez-Badas, Violeta Martínez-Robles, Inmaculada Soto, Pavel Olivera, Estefanía Bolaños, Rafael Alonso, Laura Entrena, Marta Gómez-Nuñez, Arancha Alonso, María Yera Cobo, Isabel Caparrós, María Tenorio, Esther Arrieta-Cerdán, Elsa Lopez-Ansoar, Javier García-Frade, José R González-Porras
Eltrombopag is a second-line treatment in primary immune thrombocytopenia (ITP). However, its role in secondary ITP is unknown. We evaluated the efficacy and safety of eltrombopag in secondary ITP in daily clinical practice. Eighty-seven secondary ITP patients (46 with ITP secondary to autoimmune syndromes, 23 with ITP secondary to a neoplastic disease subtype: lymphoproliferative disorders [LPDs] and 18 with ITP secondary to viral infections) who had been treated with eltrombopag were retrospectively evaluated...
June 1, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28565834/intravenous-infusion-umbilical-cord-derived-mesenchymal-stem-cell-in-primary-immune-thrombocytopenia-a-two-year-follow-up
#6
Xiaohua Wang, Xiaoguang Yin, Wei Sun, Jin Bai, Yawen Shen, Qiang Ao, Yongquan Gu, Ying Liu
Four patients with chronic refractory immune thrombocytopenic purpura (ITP) received human umbilical cord-derived mesenchymal stem cells (hUC-MSCs). The hUC-MSC dose was 5×10(7) to 1×10(8). Complete remission (CR) was achieved in three patients in 12 months and one patient in 24 months. Three patients received the second hUC-MSC transplantation with the same dose. The median time between hUC-MSC transplantation and response was 12.5 days (range, 7-16). There were no severe adverse events during and post hUC-MSC transplantation...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28565739/-research-on-the-negative-immune-regulation-of-nk-cells-in-patients-with-primary-immune-thrombocytopenia
#7
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 the levels of NK cells and their relevant cytokines (IL-10, TGF-β and IFN-γ) in patients with primary immune thrombocytopenia (ITP) . Methods: All samples were obtained from 42 patients (22 newly diagnosed and 20 in remission) and 20 healthy volunteers. The levels of IL-10 and IFN-γ in blood serum were detected by enzyme-linked immunosorbent assay (ELISA) . The percentage of CD3(-) CD56(+) NK cell, CD3(-) CD56(bright) CD16(-) NK cell, CD3(-) CD56(dim) CD16(+) NK cell in peripheral blood lymphocyte were detected by flow cytometry...
May 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28565738/-comparative-study-between-two-bleeding-grading-systems-of-primary-immune-thrombocytopenia
#8
S Xiao, Q Liu, M Hou
Objective: To evaluate prospectively the clinical significance of immune thrombocytopenia (ITP) bleeding scale (version 2016 of ITP bleeding scale) recommended in consensus of Chinese experts on diagnosis and treatment of adult primary immune thrombocytopenia (version 2016) by Chinese Medical Association. Methods: A total of 88 patients were assessed by ITP bleeding scale (version 2016) and ITP specific bleeding assessment tool (ITP-BAT) to analyze the association between bleeding score of ITP bleeding scale (version 2016) and platelet counts, gender, disease stage, also to evaluate interinstrument consistency between two bleeding grading systems...
May 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28565737/-a-study-on-the-establishment-of-immune-thrombocytopenia-model-induced-by-anti-platelet-gp%C3%A2-b%C3%AE-antibodies
#9
K X Zhou, R Yan, M X Chen, J Liu, Q Y Cui, R P Hu, Y C Liu, Y Zhang, C G Ruan, K S Dai
Objective: To establish primary immune thrombocytopenia (ITP) animal model induced by anti-platelet membrane glycoprotein GPⅠbα antibodies AN51 and R300. Methods: Twenty guinea pigs (6-8 week) were divided into 4 groups. Five guinea pigs in each group were intravenously injected with different doses of AN51 (0.05, 0.1, 0.2 μg/g) and 0.2 μg/g IgG as control. The whole blood was collected from inner angular venous plexus. Platelets number was determined by an automated cell counter and Swiss-Jim method. Then, the similar protocol was used to establish ITP nude mice model by intraperitoneal injection of different concentrations of anti-platelet GPⅠbα antibody R300, respectively...
May 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28565736/-predictors-of-fatigue-among-individuals-with-primary-immune-thrombocytopenia-in-china
#10
Y Li, M E Lyu, Y T Hao, B Y Sun, Y T Huang, R F Fu, F Xue, X F Liu, L Zhang, R C Yang
Objective: To study the fatigue symptoms of adult patients with primary immune thrombocytopenia (ITP) and to analyze the possible factors that affect the severity of fatigue. Methods: Eligible adult patients with ITP who admitted to Institute of Hematology & Blood Diseases Hospital were enrolled in this study and the questionnaires including a Chinese version of the Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-Fatigue) , the Pittsburgh sleep quality index (PSQI) , the Hospital Anxiety and Depression scale (HADS) and demographic information were completed...
May 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28565735/-a-prospective-study-of-the-efficacy-and-safety-of-maintenance-therapy-with-recombinant-human-thrombopoietin-in-patients-with-primary-immune-thrombocytopenia-a-multicenter-study
#11
H C Cai, S J Wang, L Fu, X M Wang, M Hou, P Qin, F P Chen, X H Zhang, H Huang, J S He, R H Wu, J Y Ma, R C Yang, X F Liu, Y Tian, A J Liu, J S Wu, W W Zhu, Y H Zhou, W B Liu, Y Hu, W J He, Y Li, D Pan, Y Q Zhao
Objective: To evaluate the efficacy and safety of maintenance therapy with reduced dose of rhTPO in the patients with primary immune thrombocytopenia (ITP) who attained stable platelet (PLT) counts after daily administration of rhTPO. Methods: Treatment was started with a daily administration of rhTPO (300 U/kg) for 2 consecutive weeks. Patients who attained stable PLT≥50×10(9)/L were enrolled to maintenance therapy starting with every other day administration of rhTPO, then adjusted dose interval to maintain platelet count (30-100) ×10(9)/L...
May 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28565734/-how-i-treat-corticosteroid-resistant-or-relapsed-adult-patients-with-primary-immune-thrombocytopenia
#12
M Hou
No abstract text is available yet for this article.
May 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28525829/epidemiology-and-management-of-primary-immune-thrombocytopenia-a-nationwide-population-based-study-in-korea
#13
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/28479030/platelets-and-immunity-from-physiology-to-pathology
#14
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...
June 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28466476/numerical-and-functional-defects-in-cd8-cd28-t-suppressor-lymphocytes-from-patients-with-primary-immune-thrombocytopenia
#15
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/28444667/clinical-significance-of-antinuclear-and-antiextractable-nuclear-antigen-antibody-in-childhood-immune-thrombocytopenia
#16
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/28419421/upregulation-of-cd72-expression-on-cd19-cd27-memory-b%C3%A2-cells-by-cd40l-in-primary-immune-thrombocytopenia
#17
Mingen Lyu, Yating Hao, Yang Li, Cuicui Lyu, Wenjie Liu, Huiyuan Li, Feng Xue, Xiaofan Liu, Renchi Yang
CD72 is a co-receptor of B cells and regulates B cell activation. Although aberrant expression of CD72 has been reported in primary immune thrombocytopenia (ITP), it is uncertain whether this aberrant expression is restricted to specific B cell subsets. Furthermore, the mechanisms that regulate CD72 expression are unknown. In this study, we found higher frequency of CD19(+) B cells, CD19(+) CD27(+) memory B cells and lower frequency of CD19(+) CD27(-) naive B cells in active ITP patients compared with controls and patients in remission...
April 17, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28415913/characteristics-and-management-of-primary-and-other-immune-thrombocytopenias-spanish-registry-study
#18
Javier Palau, Esther Sancho, Magdalena Herrera, Sol Sánchez, María Eva Mingot, Rosa Isabel Upegui, Mª José Rodríguez Salazar, Fátima de la Cruz, Mª Cristina Fernández, Tomás José González López, José Julio Hernández, Eduardo Ríos, Mª Fernanda López-Fernández, Marta García, José-Ángel Hernández, Miguel A Sanz
BACKGROUND: The natural history and its modulation by treatments administered for immune thrombocytopenia (ITP) in the clinical practice remains unknown. In addition, little information is available on the characteristics and management of ITP in Spain. METHODS: We conducted an observational, multicenter, registry in 70 Hematology Services from Spain between 2009 and 2011, which included children from 2 months of age and adults with primary ITP or another ITP diagnosed within the last 6 months (platelet count [PC] < 100 × 10(9)/l)...
April 17, 2017: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/28412855/decreased-tlr4-expression-on-monocytes-may-cause-regulatory-t-cells-abnormality-in-patients-with-primary-immune-thrombocytopenia
#19
Yating Hao, Huiyuan Li, Yang Li, Mingen Lyu, Donglei Zhang, Rongfeng Fu, Yue Guan, Shixuan Wang, Boyang Sun, Xueqing Dou, Renchi Yang
Primary immune thrombocytopenia (ITP) is an autoimmune disease with many immune dysfunctions including T helper type 1 cell (Th1) polarization and regulatory T cells (Tregs) deficiency. This study aimed to determine the effects of TLR4 on Treg differentiation and the cytokine production of peripheral blood mononuclear cells (PBMCs) from patients with ITP. We found that expression of TLR4 on monocytes was significantly decreased in patients with active ITP than that in healthy controls and it had positive correlation with platelet count...
April 17, 2017: Autoimmunity
https://www.readbyqxmd.com/read/28411254/safety-and-efficacy-of-romiplostim-in-splenectomized-and-nonsplenectomized-patients-with-primary-immune-thrombocytopenia
#20
Douglas B Cines, Jeffrey Wasser, Francesco Rodeghiero, Beng H Chong, Michael Steurer, Drew Provan, Roger Lyons, Jaime Garcia-Chavez, Nancy Carpenter, Xuena Wang, Melissa Eisen
Primary immune thrombocytopenia is an autoimmune disorder characterized by increased platelet destruction and insufficient platelet production without another identified underlying disorder. Splenectomy may alter responsiveness to treatment and/or increase the risk of thrombosis, infection, and pulmonary hypertension. This analysis evaluated the safety and efficacy of the thrombopoietin receptor agonist romiplostim in splenectomized and nonsplenectomized adults with primary immune thrombocytopenia. Data were pooled across 13 completed clinical studies in adults with immune thrombocytopenia from 2002-2014...
April 14, 2017: Haematologica
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