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Goda S, Karakawa S, Okada S, Kawaguchi H, Kurita E, Noma M, Yamaoka A, Komatsu M, Yanai A, Kashihara M, Fujii T, Onodera R, Taniguchi K, Aizawa M, Kobayashi M. Clinical significance of human neutrophil antigen-1 antibodies in children with neutropenia. Int J Hematol 2023; 118:627-635. [PMID: 37735323 DOI: 10.1007/s12185-023-03661-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 09/23/2023]
Abstract
Primary autoimmune neutropenia in young children is characterized by chronic neutropenia and positivity for antibodies against human neutrophil antigens (HNAs). This study analyzed the clinical characteristics of 402 children with neutropenia to identify differences between those with and without HNA-1 antibodies (HNA1abs). HNAabs in sera were detected by granulocyte immunofluorescence testing using flow cytometry. Relative fluorescence intensity (RFI) values were used to divide patients into positive (PG, n = 302), borderline (BG, n = 34), and negative (NG, n = 66) groups. The antibodies reacted to HNA-1a alone (59%), HNA-1b alone (1%), and HNA-1a/1b (40%). The PG had a significantly lower absolute neutrophil count before definitive diagnosis and a 1.6- to 2-times greater risk of hospitalization during neutropenia than the other groups. The median duration of neutropenia was longest in the PG at 25 months, followed by 20 months in the BG and 14 months in the NG. This large-scale cohort characterizes clinically distinct groups using the RFI value for HNA1abs in young children with neutropenia. Detection of HNA1abs may aid in understanding the clinical characteristics of children with neutropenia.
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Affiliation(s)
- Satoshi Goda
- Department of Pediatrics, Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, Japan.
| | - Shuhei Karakawa
- Department of Pediatrics, Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, Japan
| | - Satoshi Okada
- Department of Pediatrics, Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, Japan
| | - Hiroshi Kawaguchi
- Department of Pediatrics, Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, Japan
| | - Emi Kurita
- Division of Transfusion, Hiroshima University Hospital, Hiroshima University, Hiroshima, Japan
| | - Mitsunori Noma
- Division of Transfusion, Hiroshima University Hospital, Hiroshima University, Hiroshima, Japan
| | - Aiko Yamaoka
- Division of Transfusion, Hiroshima University Hospital, Hiroshima University, Hiroshima, Japan
| | - Mayumi Komatsu
- Division of Transfusion, Hiroshima University Hospital, Hiroshima University, Hiroshima, Japan
| | - Ayaka Yanai
- Division of Transfusion, Hiroshima University Hospital, Hiroshima University, Hiroshima, Japan
| | - Mayu Kashihara
- Division of Transfusion, Hiroshima University Hospital, Hiroshima University, Hiroshima, Japan
| | - Teruhisa Fujii
- Division of Transfusion, Hiroshima University Hospital, Hiroshima University, Hiroshima, Japan
| | - Rie Onodera
- Department of Medical Technology, Sanyo Women's College, Hatsukaichi, Japan
| | - Kikuyo Taniguchi
- Department of Medical Technology, Sanyo Women's College, Hatsukaichi, Japan
| | - Mika Aizawa
- Department of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima, Japan
| | - Masao Kobayashi
- Japanese Red Cross Chugoku-Shikoku Block Blood Center, Hiroshima, Japan
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Zhang Y. The Effect of on Educational Technology on EFL Learners' Self-Efficacy. Front Psychol 2022; 13:881301. [PMID: 35496186 PMCID: PMC9043317 DOI: 10.3389/fpsyg.2022.881301] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 03/09/2022] [Indexed: 11/13/2022] Open
Abstract
This paper aimed at investigating the related studies on educational technology and its effect on English as a Foreign Language (EFL) learner self-efficacy. Earlier studies have proved the positive and significant relationship between learner self-efficacy and educational technology use. Investigations have revealed that improving learners’ dynamic mindsets, online interaction, self-assessment, academic knowledge, and positive affectivity can increase learner self-efficacy. Moreover, the provision of the encouraging context can help develop learners’ self-efficacy in technology-supported education. Furthermore, the study presented the implications and future directions of this line of research for different people, such as EFL teachers, teacher educators, and foreign language scholars. The ideas can improve their awareness of learner self-efficacy in technology-supported educational contexts and its role in L2 education.
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Affiliation(s)
- Ying Zhang
- Zhejiang Technical Institute of Economics, Hangzhou, China
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Autoimmune pancytopenia after liver transplantation: A case report. Transfus Apher Sci 2021; 60:103136. [PMID: 33895070 DOI: 10.1016/j.transci.2021.103136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 03/31/2021] [Accepted: 04/06/2021] [Indexed: 11/22/2022]
Abstract
INTRODUCTION Autoimmune hemolytic anemia (AIHA), immune thrombocytopenia (ITP), and autoimmune neutropenia (AIN) are reported in the literature after liver, intestinal, heart, pancreas, and kidney transplants. We report a case of autoimmune pancytopenia (AIHA, AIN and ITP) 9 years after liver transplantation with confirmed erythrocyte and neutrophil auto-antibodies. CASE REPORT A 49 years old man was admitted to our hospital presented with dysentery and fever, with history of liver transplantation in 2008. Laboratory evaluation demonstrated hemoglobin: 7.2 g/dL, granulocytes: 0.10 × 109/L and platelets: 15 × 109/mm³; indirect bilirubin: 3.62 mg/dL; lactate dehydrogenase: 603 U/L. Direct antiglobulin test revealed a monospecific anti-IgG plus C3 and the acid eluate was reactive to all panel red cells, consistent with an AIHA. Granulocyte immunofluorescence test (GIFT) and agglutination test (GAT) were reactive for granulocytes. Test with Luminex technology for human neutrophil antigen (HNA) antibody detection was strong reactive with beads expressing HNA-1a, -1b, -1c, -2, -4a and -5a antigens. HNA genotyping revealed the presence of the corresponding antigens, confirming the autoantibodies. Test with Luminex technology for human leucocyte antigen (HLA) antibody detection was negative. Monoclonal antibody immobilization of platelet antigens (MAIPA) assay was negative. Viral causes were excluded. The condition was compatible with clinical onset of autoimmune pancytopenia. Prednisone was administered at an initial dose of 1 mg/kg/day and immunosuppressive therapy was adjusted. This treatment resulted in rapid resolution of pancytopenia. CONCLUSION Combined autoimmune pancytopenia (AIHA, AIN and ITP) is a rare condition that may occur after liver transplantation. Early recognition of this phenomenon permits appropriate treatment.
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Farruggia P, Fioredda F, Puccio G, Onofrillo D, Russo G, Barone A, Bonanomi S, Boscarol G, Finocchi A, Ghilardi R, Giordano P, Ladogana S, Lassandro G, Luti L, Lanza T, Mandaglio R, Marra N, Martire B, Mastrodicasa E, Motta M, Notarangelo LD, Pillon M, Porretti L, Serafinelli J, Trizzino A, Tucci F, Veltroni M, Verzegnassi F, Ramenghi U, Dufour C. Idiopathic neutropenia of infancy: Data from the Italian Neutropenia Registry. Am J Hematol 2019; 94:216-222. [PMID: 30456824 DOI: 10.1002/ajh.25353] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 10/27/2018] [Accepted: 11/12/2018] [Indexed: 01/13/2023]
Abstract
Autoimmune neutropenia of infancy (AIN) is characterized by low risk of severe infection, tendency to spontaneously resolve and typically onset at ≤4-5 years of age; it is due to auto-antibodies whose detection is often difficult. In case of negativity of 4 antineutrophils autoantibody tests, after having excluded ethnic, postinfection, drug induced, or congenital neutropenia, according to the Italian guidelines the patients will be defined as affected by "idiopathic neutropenia" (IN). We describe the characteristics of 85 IN patients enrolled in the Italian neutropenia registry: they were compared with 336 children affected by AIN. The 2 groups were clinically very similar and the main differences were detection age (later in IN), length of disease (longer in IN) and, among recovered patients, age of spontaneous recovery: the median age at resolution was 2.13 years in AINs and 3.03 years in INs (P = .00002). At bivariate analysis among AIN patients earlier detection age (P = .00013), male sex (P = .000748), absence of leucopenia (P = .0045), and absence of monocytosis (P = .0419) were significantly associated with earlier recovery; in the IN group only detection age (P = .013) and absence of monocytosis (P = .0333) were significant. At multivariate analysis detection age and absence of monocytosis were independently significant (P = 6.7e-05 and 4.4e-03, respectively) in the AIN group, whereas in the IN group only detection age stayed significant (P = .013).
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Affiliation(s)
- Piero Farruggia
- Pediatric Hematology and Oncology Unit; A.R.N.A.S. Ospedale Civico; Palermo Italy
| | - Francesca Fioredda
- Clinical and Experimental Unit G. Gaslini Children's Hospital; Genoa Italy
| | - Giuseppe Puccio
- Department of Sciences for Health Promotion; University of Palermo; Palermo Italy
| | - Daniela Onofrillo
- Pediatric Hematology and Oncology Unit, Department of Hematology; Spirito Santo Hospital; Pescara Italy
| | - Giovanna Russo
- Pediatric Hematology and Oncology Unit, Azienda Policlinico-Vittorio Emanuele; University of Catania; Catania Italy
| | - Angelica Barone
- Department of Pediatric Onco-Hematology; University Hospital; Parma Italy
| | - Sonia Bonanomi
- MBBM Foundation, Department of Pediatrics; University of Milano - Bicocca; Monza Italy
| | - Gianluca Boscarol
- Department of Pediatrics; Central Teaching Hospital Bolzano; Bolzano Italy
| | | | - Roberta Ghilardi
- Department of Pediatrics; Ospedale Maggiore Policlinico IRCCS; Milan Italy
| | - Paola Giordano
- Department of Biomedical Sciences and Human Oncology; Pediatric Section, University "A. Moro" of Bari; Bari Italy
| | - Saverio Ladogana
- Department of Hematology; IRCCS Casa Sollievo della Sofferenza; San Giovanni Rotondo Italy
| | - Giuseppe Lassandro
- Department of Biomedical Sciences and Human Oncology; Pediatric Section, University "A. Moro" of Bari; Bari Italy
| | - Laura Luti
- Pediatric Hematology Oncology; Bone Marrow Transplant, Azienda Ospedaliero Universitaria Pisana, S. Chiara Hospital; Pisa Italy
| | - Tiziana Lanza
- Clinical and Experimental Unit G. Gaslini Children's Hospital; Genoa Italy
| | | | | | - Baldassare Martire
- Pediatric Science and Surgery Department; Pediatric Onco-Hematology Unit, Hospital Policlinico- Giovanni XXIII; Bari Italy
| | - Elena Mastrodicasa
- Pediatric Oncology Hematology Unit; S. Maria Della Misericordia Hospital; Perugia Italy
| | - Milena Motta
- Pediatric Hematology and Oncology Unit, Azienda Policlinico-Vittorio Emanuele; University of Catania; Catania Italy
| | - Lucia Dora Notarangelo
- Onco-Haematology and Bone Marrow Transplantation Unit; Children's Hospital; Brescia Italy
| | - Marta Pillon
- Pediatric Onco-Hematology Department; University of Padova; Padova
| | - Laura Porretti
- Flow Cytometry Service; Laboratory of Clinical Chemistry and Microbiology, IRCCS “Ca‘ Granda” Foundation, Maggiore Hospital Policlinico; Milan Italy
| | | | - Angela Trizzino
- Pediatric Hematology and Oncology Unit; A.R.N.A.S. Ospedale Civico; Palermo Italy
| | - Fabio Tucci
- Department of Pediatric Onco-Hematology; Meyer Children's Hospital; Florence Italy
| | - Marinella Veltroni
- Department of Pediatric Onco-Hematology; Meyer Children's Hospital; Florence Italy
| | - Federico Verzegnassi
- Institute for Maternal and Child Health (I.R.C.C.S) Burlo Garofolo; Trieste Italy
| | - Ugo Ramenghi
- Department of Pediatric and Public Health Sciences; University of Torino; Italy
| | - Carlo Dufour
- Clinical and Experimental Unit G. Gaslini Children's Hospital; Genoa Italy
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