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  1. Article ; Online: Refractory IgG4-related disease complicated with organising pneumonia and hypertrophic pachymeningitis.

    Abe, Fumito / Michishita, Yoshihiro / Saito, Masaya / Nara, Mizuho / Wakui, Hideki / Takahashi, Naoto

    Modern rheumatology case reports

    2022  Volume 6, Issue 2, Page(s) 278–281

    Abstract: Immunoglobulin G4 (IgG4)-related disease (IgG4-RD) involves multiple organs, including the lungs and central nervous system. Lung lesions are frequently reported as mass lesions or non-specific interstitial pneumonia, whereas organising pneumonia (OP) ... ...

    Abstract Immunoglobulin G4 (IgG4)-related disease (IgG4-RD) involves multiple organs, including the lungs and central nervous system. Lung lesions are frequently reported as mass lesions or non-specific interstitial pneumonia, whereas organising pneumonia (OP) due to IgG4-RD is rare. Furthermore, limited information is currently available on hypertrophic pachymeningitis (HP). We herein report a case of IgG4-RD complicated with OP and HP. The diagnosis was confirmed based on the serum concentration of IgG4 and the results of salivary gland and transbronchial lung biopsies. HP did not respond to steroid monotherapy and was also resistant to rituximab and intravenous cyclophosphamide; however, the combination therapy of methotrexate and dexamethasone was effective.
    MeSH term(s) Humans ; Hypertrophy/complications ; Immunoglobulin G ; Immunoglobulin G4-Related Disease/complications ; Immunoglobulin G4-Related Disease/diagnosis ; Immunoglobulin G4-Related Disease/drug therapy ; Meningitis/complications ; Meningitis/diagnosis ; Meningitis/drug therapy ; Pneumonia/complications
    Chemical Substances Immunoglobulin G
    Language English
    Publishing date 2022-06-24
    Publishing country England
    Document type Case Reports ; Journal Article
    ISSN 2472-5625
    ISSN (online) 2472-5625
    DOI 10.1093/mrcr/rxac025
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Development and characterization of a unique anti-IgE mouse monoclonal antibody cross-reactive between human and canine IgE.

    Kumagai, Akiko / Nara, Takuya / Uematsu, Mizuho / Kakinuma, Yoko / Saito, Takashi / Masuda, Kenichi

    Immunity, inflammation and disease

    2021  Volume 9, Issue 4, Page(s) 1740–1748

    Abstract: Background: The efficacy assessment of human anti-IgE monoclonal antibodies (mAbs) in animal models before clinical trials is hampered due to the lack of cross-reactivity of anti-IgE mAbs between species.: Objective: We developed CRE-DR (an anti-dog ... ...

    Abstract Background: The efficacy assessment of human anti-IgE monoclonal antibodies (mAbs) in animal models before clinical trials is hampered due to the lack of cross-reactivity of anti-IgE mAbs between species.
    Objective: We developed CRE-DR (an anti-dog IgE monoclonal antibody), an anti-IgE mouse mAb that recognizes canine and human IgE, and then examined its IgE specificity and cross-reactivity between three animal and human species.
    Methods: After mouse immunization with a synthetic peptide derived from canine IgE (
    Results: CRE-DR is a monoclonal mouse IgG1κ specific for dog IgE, and the ELISA values in atopic dog sera were inhibited by dog IgE, but not dog IgG. The binding of CRE-DR to human IgE was relatively maintained, but not to rodent IgEs, which results were confirmed with the BSA-conjugated IgE peptides of the various species. The CRE-DR reactivity was supported by the comparison of amino acid sequence of CRE-DR epitope, DWIEGETYYC, in dog IgE; one, two, and three amino acids were substituted in the human, rat, and mouse IgE epitopes, respectively.
    Conclusions and clinical relevance: CRE-DR is a mAb cross-reactive to dog and human IgEs, which can allow the use of a dog model of allergy to test the efficacy of a CRE-DR-derived anti-IgE therapeutic mAb before human clinical trials.
    MeSH term(s) Animals ; Antibodies, Anti-Idiotypic ; Antibodies, Monoclonal ; Antibody Specificity ; Cross Reactions ; Dogs ; Humans ; Immunoglobulin E ; Mice ; Rats
    Chemical Substances Antibodies, Anti-Idiotypic ; Antibodies, Monoclonal ; anti-IgE antibodies ; Immunoglobulin E (37341-29-0)
    Language English
    Publishing date 2021-09-17
    Publishing country England
    Document type Journal Article
    ISSN 2050-4527
    ISSN (online) 2050-4527
    DOI 10.1002/iid3.531
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Successful Pregnancies in a Patient with Childhood-onset Steroid-dependent Nephrotic Syndrome during Rituximab Maintenance Therapy.

    Nara, Mizuho / Kaga, Hajime / Saito, Masaya / Abe, Fumito / Saito, Ayano / Imaizumi, Chihiro / Komatsuda, Atsushi / Wakui, Hideki / Takahashi, Naoto

    Internal medicine (Tokyo, Japan)

    2021  Volume 60, Issue 18, Page(s) 2985–2989

    Abstract: There are an increasing number of reports on the safe use of rituximab (RTX), a chimeric anti-CD20 monoclonal antibody, in pregnant women with hematological malignancies or refractory autoimmune diseases. In 2014, the use of RTX for patients with ... ...

    Abstract There are an increasing number of reports on the safe use of rituximab (RTX), a chimeric anti-CD20 monoclonal antibody, in pregnant women with hematological malignancies or refractory autoimmune diseases. In 2014, the use of RTX for patients with complicated steroid-dependent nephrotic syndrome (SDNS) was approved in Japan. We herein report a woman with childhood-onset complicated SDNS due to focal and segmental glomerulosclerosis, who had two successful pregnancies while receiving RTX maintenance therapy. No adverse complications were observed during the pregnancies, and she delivered healthy newborns. This case suggested that RTX may be used safely in pregnant women complicated with SDNS.
    MeSH term(s) Child ; Female ; Glomerulosclerosis, Focal Segmental ; Humans ; Immunologic Factors/adverse effects ; Immunosuppressive Agents ; Infant, Newborn ; Japan ; Nephrotic Syndrome/drug therapy ; Pregnancy ; Rituximab/adverse effects ; Steroids ; Treatment Outcome
    Chemical Substances Immunologic Factors ; Immunosuppressive Agents ; Steroids ; Rituximab (4F4X42SYQ6)
    Language English
    Publishing date 2021-03-29
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 32371-8
    ISSN 1349-7235 ; 0021-5120 ; 0918-2918
    ISSN (online) 1349-7235
    ISSN 0021-5120 ; 0918-2918
    DOI 10.2169/internalmedicine.6633-20
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Adult-onset Still's Disease during Pregnancy Treated with Tocilizumab.

    Imaizumi, Chihiro / Saito, Masaya / Abe, Fumito / Kaga, Hajime / Saito, Ayano / Nara, Mizuho / Kameyama, Saeko / Miura, Hiroshi / Ogasawara, Hitoshi / Hirakawa, Takeo / Mizunuma, Makito / Satoh, Makiko / Komatsuda, Atsushi / Terada, Yukihiro / Takahashi, Naoto

    Internal medicine (Tokyo, Japan)

    2022  Volume 61, Issue 20, Page(s) 3137–3140

    Abstract: A 28-year-old woman exhibited a spiking fever, arthritis, and liver disfunction when she was 22 weeks pregnant. She was diagnosed with adult-onset Still's disease (AOSD). As her condition was resistant to corticosteroid therapy, tocilizumab (TCZ) was ... ...

    Abstract A 28-year-old woman exhibited a spiking fever, arthritis, and liver disfunction when she was 22 weeks pregnant. She was diagnosed with adult-onset Still's disease (AOSD). As her condition was resistant to corticosteroid therapy, tocilizumab (TCZ) was selected. The TCZ treatment was effective, and she delivered a healthy child while receiving TCZ treatment. Cases in which AOSD first arises during pregnancy are rare, and there have been no reports of TCZ treatment for AOSD being initiated during pregnancy. Although the safety of TCZ treatment during pregnancy has not been established, it may be effective against severe AOSD that develops during pregnancy.
    MeSH term(s) Adrenal Cortex Hormones ; Adult ; Antibodies, Monoclonal, Humanized/therapeutic use ; Female ; Humans ; Infant, Newborn ; Pregnancy ; Still's Disease, Adult-Onset/drug therapy ; Treatment Outcome
    Chemical Substances Adrenal Cortex Hormones ; Antibodies, Monoclonal, Humanized ; tocilizumab (I031V2H011)
    Language English
    Publishing date 2022-03-12
    Publishing country Japan
    Document type Case Reports ; Journal Article
    ZDB-ID 32371-8
    ISSN 1349-7235 ; 0021-5120 ; 0918-2918
    ISSN (online) 1349-7235
    ISSN 0021-5120 ; 0918-2918
    DOI 10.2169/internalmedicine.8886-21
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: A Pediatric Case of Relapsing Eosinophilic Granulomatosis with Polyangiitis Successfully Treated with Mepolizumab.

    Nara, Mizuho / Saito, Masaya / Abe, Fumito / Komatsuda, Atsushi / Wakui, Hideki / Takahashi, Naoto

    Internal medicine (Tokyo, Japan)

    2019  Volume 58, Issue 24, Page(s) 3583–3587

    Abstract: We herein report the first pediatric case (a 13-year-old girl) of relapsing eosinophilic granulomatosis with polyangiitis (EGPA) successfully treated with mepolizumab (anti-interleukin-5). She was classified as having EGPA based on the presence of asthma, ...

    Abstract We herein report the first pediatric case (a 13-year-old girl) of relapsing eosinophilic granulomatosis with polyangiitis (EGPA) successfully treated with mepolizumab (anti-interleukin-5). She was classified as having EGPA based on the presence of asthma, eosinophilia, pulmonary infiltrates, and extravascular eosinophil infiltration confirmed by a biopsy. She achieved remission after initial oral prednisolone (PSL) therapy, but EGPA relapsed during PSL tapering. Subsequent combined therapy with PSL and tacrolimus did not improve the recurrent disease. Intravenous methylprednisolone pulse therapy was started, followed by oral PSL. During PSL tapering, mepolizumab was added to the treatment, which resulted in sustained remission and successful PSL tapering.
    MeSH term(s) Adolescent ; Antibodies, Monoclonal, Humanized/therapeutic use ; Asthma ; Biopsy ; Churg-Strauss Syndrome/diagnosis ; Churg-Strauss Syndrome/drug therapy ; Eosinophilia ; Female ; Glucocorticoids/therapeutic use ; Humans ; Interleukin-5/antagonists & inhibitors ; Lung/diagnostic imaging ; Prednisolone/therapeutic use ; Radiography
    Chemical Substances Antibodies, Monoclonal, Humanized ; Glucocorticoids ; IL5 protein, human ; Interleukin-5 ; mepolizumab (90Z2UF0E52) ; Prednisolone (9PHQ9Y1OLM)
    Language English
    Publishing date 2019-08-06
    Publishing country Japan
    Document type Case Reports ; Journal Article
    ZDB-ID 32371-8
    ISSN 1349-7235 ; 0021-5120 ; 0918-2918
    ISSN (online) 1349-7235
    ISSN 0021-5120 ; 0918-2918
    DOI 10.2169/internalmedicine.3406-19
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Long-term prognosis of monoclonal immunoglobulin-associated glomerular diseases with non-organized deposits: A report of 38 cases from a Japanese single center.

    Nara, Mizuho / Komatsuda, Atsushi / Sawamura, Masato / Abe, Fumito / Kaga, Hajime / Saito, Ayano / Saito, Masaya / Imaizumi, Chihiro / Nanjo, Hiroshi / Wakui, Hideki / Takahashi, Naoto

    Clinical nephrology

    2022  Volume 98, Issue 3, Page(s) 135–145

    Abstract: Monoclonal immunoglobulin (MIg)-associated glomerular diseases with non-organized deposits are rare disorders. They have recently been categorized into light chain deposit disease (LCDD), light and heavy chain deposit disease (LHCDD), heavy chain deposit ...

    Abstract Monoclonal immunoglobulin (MIg)-associated glomerular diseases with non-organized deposits are rare disorders. They have recently been categorized into light chain deposit disease (LCDD), light and heavy chain deposit disease (LHCDD), heavy chain deposit disease (HCDD), proliferative glomerulonephritis with MIg deposits (PGNMID) and its light chain only variant (PGNMID-LC), and membranous glomerulopathy with light chain-restricted deposits (MG-LC). In our Japanese cohort of more than 9,500 patients who underwent renal biopsy (1979 - 2020), we evaluated clinicopathological features and long-term outcomes in 38 patients with MIg-associated glomerular diseases with non-organized deposits: LCDD (n = 9), LHCDD (n = 8), HCDD (n = 5), PGNMID-membranoproliferative glomerulonephritis (MPGN) (n = 7), PGNMID-LC (n = 2), and MG-LC (n = 7). In patients with LCDD, a low estimated glomerular filtration rate (eGFR) at biopsy, a high detection rate of urinary MIgs, a high incidence rate of multiple myeloma, and sever tubulointerstitial and vascular lesions were significant clinicopathological characteristics. Median duration of follow-up in each group was 42 - 114 months. Most patients were treated with steroid-based therapy. Patients with LCDD, LHCDD, HCDD, and MG-LC were recently treated with bortezomib-based therapy. Renal survival rate was significantly shorter for LCDD than of PGNMID and MG-LC. Patient survival rate was significantly longer for MG-LC than HCDD and PGNMID. Major causes of death were pulmonary and cardiovascular complications. Among disease groups, significant differences were observed in eGFR at biopsy, detection rates of urinary MIgs, incidence rates of multiple myeloma, severities of tubulointerstitial and vascular lesions, and long-term outcomes.
    MeSH term(s) Bortezomib ; Glomerulonephritis/complications ; Glomerulonephritis/diagnosis ; Glomerulonephritis/drug therapy ; Glomerulonephritis, Membranoproliferative/pathology ; Humans ; Japan/epidemiology ; Kidney Diseases/pathology ; Multiple Myeloma/complications ; Polychlorinated Dibenzodioxins ; Prognosis ; Steroids
    Chemical Substances Polychlorinated Dibenzodioxins ; Steroids ; Bortezomib (69G8BD63PP) ; 1,2,3,4,6,7,8-heptachlorodibenzodioxin (MM6333103R)
    Language English
    Publishing date 2022-07-20
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 185101-9
    ISSN 0301-0430
    ISSN 0301-0430
    DOI 10.5414/CN110865
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Evaluation of a newly proposed renal risk score for Japanese patients with ANCA-associated glomerulonephritis.

    Saito, Masaya / Saito, Ayano / Abe, Fumito / Imaizumi, Chihiro / Kaga, Hajime / Sawamura, Masato / Nara, Mizuho / Ozawa, Masatoyo / Sato, Ryuta / Nakayama, Takahiro / Okuyama, Shin / Masai, Rie / Ohtani, Hiroshi / Komatsuda, Atsushi / Wakui, Hideki / Takahashi, Naoto

    Clinical and experimental nephrology

    2022  Volume 26, Issue 8, Page(s) 760–769

    Abstract: Background: We determined the usefulness and prognostic ability of the renal risk score (RRS), proposed in Europe, for Japanese patients with antineutrophil cytoplasmic antibody (ANCA)-associated glomerulonephritis (AAGN) and high myeloperoxidase (MPO)- ... ...

    Abstract Background: We determined the usefulness and prognostic ability of the renal risk score (RRS), proposed in Europe, for Japanese patients with antineutrophil cytoplasmic antibody (ANCA)-associated glomerulonephritis (AAGN) and high myeloperoxidase (MPO)-ANCA positivity; these aspects remain to be verified.
    Methods: This retrospective study was conducted on 86 Japanese patients with new, biopsy-confirmed AAGN. We calculated the RRS and analyzed the relationship between this classification, and clinicopathological features and prognosis. We also compared the predictive values between RRS for endpoints including renal death and conventional prognostic tools for patients with AAGN.
    Results: There were 33, 37, and 16 patients in the low-, medium-, and high-risk groups, respectively. All patients were MPO-ANCA positive. The median follow-up period was 33 months; 16 (18.6%) patients progressed to end-stage renal disease (ESRD). In the high-risk group, 9/16 (56.3%) patients progressed to ESRD, and renal prognosis was significantly poorer than that in other groups (low-risk group, P < 0.001; medium-risk group, P = 0.004). In Cox multivariate regression analysis, RRS was an independent, poor renal prognostic factor (hazard ratio 5.22; 95% confidence interval 2.20-12.40; P < 0.001). The receiver-operating characteristic curves of the RRS for each endpoint were comparable with those of the 2010 histological classification and those of the severity classification of Japanese rapidly progressive glomerulonephritis.
    Conclusions: This is the first study to report the usefulness of the RRS for predicting renal outcomes among Japanese patients with AAGN. Our predictive value of the RRS was comparable with that of conventional prognostic tools.
    MeSH term(s) Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis/complications ; Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis/diagnosis ; Antibodies, Antineutrophil Cytoplasmic ; Glomerulonephritis/pathology ; Humans ; Japan/epidemiology ; Kidney Failure, Chronic/diagnosis ; Kidney Failure, Chronic/etiology ; Prognosis ; Retrospective Studies ; Risk Factors
    Chemical Substances Antibodies, Antineutrophil Cytoplasmic
    Language English
    Publishing date 2022-04-08
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 1338768-6
    ISSN 1437-7799 ; 1342-1751
    ISSN (online) 1437-7799
    ISSN 1342-1751
    DOI 10.1007/s10157-022-02217-w
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  8. Article ; Online: Clinical characteristics of anti-Ro52α and anti-Ro52β antibodies in dermatomyositis/polymyositis.

    Ogawa-Momohara, Mariko / Muro, Yoshinao / Mitsuma, Teruyuki / Katayama, Masao / Yanaba, Koichi / Nara, Mizuho / Kakeda, Masato / Akiyama, Masashi

    Journal of dermatological science

    2019  Volume 96, Issue 1, Page(s) 50–52

    MeSH term(s) Adult ; Aged ; Autoantibodies/blood ; Autoantibodies/immunology ; Dermatomyositis/blood ; Dermatomyositis/immunology ; Female ; Histidine-tRNA Ligase/immunology ; Humans ; Male ; Middle Aged ; Polymyositis/blood ; Polymyositis/immunology ; Protein Isoforms/immunology ; Retrospective Studies ; Ribonucleoproteins/immunology
    Chemical Substances Autoantibodies ; Protein Isoforms ; Ribonucleoproteins ; SS-A antigen ; Histidine-tRNA Ligase (EC 6.1.1.21)
    Language English
    Publishing date 2019-08-12
    Publishing country Netherlands
    Document type Letter
    ZDB-ID 1024446-3
    ISSN 1873-569X ; 0923-1811
    ISSN (online) 1873-569X
    ISSN 0923-1811
    DOI 10.1016/j.jdermsci.2019.08.002
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  9. Article ; Online: Relapsing polychondritis with encephalitis: a case report and literature review.

    Nara, Mizuho / Komatsuda, Atsushi / Togashi, Masaru / Wakui, Hideki

    Internal medicine (Tokyo, Japan)

    2015  Volume 54, Issue 2, Page(s) 231–234

    Abstract: We herein report the case of a 39-year-old man who developed bilateral auricular chondritis, conjunctivitis, and central neurological symptoms. He was diagnosed with encephalitis associated with relapsing polychondritis (RP) based on the findings of an ... ...

    Abstract We herein report the case of a 39-year-old man who developed bilateral auricular chondritis, conjunctivitis, and central neurological symptoms. He was diagnosed with encephalitis associated with relapsing polychondritis (RP) based on the findings of an ear cartilage biopsy, cerebrospinal fluid examination and magnetic resonance imaging. Although oral prednisolone (60 mg/day) was administered, the initial steroid therapy did not improve his symptoms. In contrast, methylprednisolone (mPSL) pulse therapy followed by prednisolone gradually ameliorated his condition. There were no episodes of recurrence during the two-year follow-up period. A review of the literature revealed that meningoencephalitis and encephalitis are rare, but important, complications of RP responsive to mPSL pulse therapy.
    MeSH term(s) Adrenal Cortex Hormones/administration & dosage ; Adrenal Cortex Hormones/therapeutic use ; Adult ; Conjunctivitis/diagnosis ; Conjunctivitis/etiology ; Humans ; Magnetic Resonance Imaging ; Male ; Meningoencephalitis/diagnosis ; Meningoencephalitis/drug therapy ; Meningoencephalitis/etiology ; Methylprednisolone/therapeutic use ; Polychondritis, Relapsing/complications ; Polychondritis, Relapsing/diagnosis ; Polychondritis, Relapsing/drug therapy ; Prednisolone/therapeutic use
    Chemical Substances Adrenal Cortex Hormones ; Prednisolone (9PHQ9Y1OLM) ; Methylprednisolone (X4W7ZR7023)
    Language English
    Publishing date 2015
    Publishing country Japan
    Document type Case Reports ; Journal Article ; Review
    ZDB-ID 32371-8
    ISSN 1349-7235 ; 0021-5120 ; 0918-2918
    ISSN (online) 1349-7235
    ISSN 0021-5120 ; 0918-2918
    DOI 10.2169/internalmedicine.54.3568
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Disappearance of a thrombotic microangiopathy-like glomerular lesion in a patient with a placental site trophoblastic tumor after hysterectomy.

    Sawamura, Masato / Komatsuda, Atsushi / Nara, Mizuho / Togashi, Masaru / Wakui, Hideki / Takahashi, Naoto

    Clinical nephrology. Case studies

    2018  Volume 6, Page(s) 27–30

    Abstract: A 32-year-old woman presented with amenorrhea after a normal childbirth and subsequently developed nephrotic syndrome. Renal biopsy showed a thrombotic microangiopathy (TMA)-like glomerular lesion with deposits of immunoglobulins, complements, and ... ...

    Abstract A 32-year-old woman presented with amenorrhea after a normal childbirth and subsequently developed nephrotic syndrome. Renal biopsy showed a thrombotic microangiopathy (TMA)-like glomerular lesion with deposits of immunoglobulins, complements, and fibrinogen. Increased serum levels of the beta subunit of human chorionic gonadotropin, abnormal uterine findings from imaging studies, and endometrial biopsy findings suggested gestational trophoblastic disease. She was diagnosed with a placental site trophoblastic tumor (PSTT) after hysterectomy and, following treatment, her proteinuria disappeared. Follow-up renal biopsy showed the disappearance of the TMA-like lesion. To our knowledge, this is the first case report of the pathological remission of renal disease associated with PSTT.
    Language English
    Publishing date 2018-09-20
    Publishing country Germany
    Document type Case Reports
    ISSN 2196-5293
    ISSN (online) 2196-5293
    DOI 10.5414/CNCS109440
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