1
|
Toriyabe K, Kitamura A, Hagimoto-Akasaka M, Ikejiri M, Suga S, Kondo E, Kihira M, Morikawa F, Ikeda T. Transient Decrease in Incidence Rate of Maternal Primary Cytomegalovirus Infection during the COVID-19 Pandemic in Japan. Viruses 2023; 15:v15051096. [PMID: 37243182 DOI: 10.3390/v15051096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/22/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023] Open
Abstract
This study evaluated the impact of the coronavirus disease 2019 (COVID-19) pandemic on the occurrence of maternal primary cytomegalovirus (CMV) infection in Japan. We performed a nested case-control study using data from maternal CMV antibody screening under the Cytomegalovirus in Mother and infant-engaged Virus serology (CMieV) program in Mie, Japan. Pregnant women with negative IgG antibodies at ≤20 weeks of gestation who were retested at ≥28 weeks were enrolled. The study period was divided into 2015-2019 as the pre-pandemic and 2020-2022 as the pandemic period, and the study site included 26 institutions conducting the CMieV program. The incidence rate of maternal IgG seroconversion was compared between the pre-pandemic (7008 women enrolled) and pandemic (2020, 1283 women enrolled; 2021, 1100 women; and 2022, 398 women) periods. Sixty-one women in the pre-pandemic period and five, four, and five women during 2020, 2021, and 2022, respectively, showed IgG seroconversion. The incidence rates in 2020 and 2021 were lower (p < 0.05) than that in the pre-pandemic period. Our data suggest a transient decrease in the incidence of maternal primary CMV infection in Japan during the COVID-19 pandemic, which could be due to prevention and hygiene measures taken at the population level.
Collapse
Affiliation(s)
- Kuniaki Toriyabe
- Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
| | - Asa Kitamura
- Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
- Department of Obstetrics and Gynecology, National Hospital Organization Mie Chuo Medical Center, Tsu 514-1101, Japan
| | - Miki Hagimoto-Akasaka
- Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
| | - Makoto Ikejiri
- Department of Clinical Laboratory, Mie University Hospital, Tsu 514-8507, Japan
| | - Shigeru Suga
- Institute for Clinical Research, National Hospital Organization Mie National Hospital, Tsu 514-0125, Japan
| | - Eiji Kondo
- Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
| | - Masamichi Kihira
- Mie Association of Obstetricians and Gynecologists, Tsu 514-0003, Japan
| | - Fumihiro Morikawa
- Mie Association of Obstetricians and Gynecologists, Tsu 514-0003, Japan
| | - Tomoaki Ikeda
- Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
| |
Collapse
|
2
|
Kitamura A, Toriyabe K, Hagimoto-Akasaka M, Hamasaki-Shimada K, Ikejiri M, Minematsu T, Suga S, Kondo E, Kihira M, Morikawa F, Ikeda T. Revision of Cytomegalovirus Immunoglobulin M Antibody Titer Cutoff in a Maternal Antibody Screening Program in Japan: A Cohort Comparison Involving a Total of 32,000 Pregnant Women. Viruses 2023; 15:v15040962. [PMID: 37112942 PMCID: PMC10143041 DOI: 10.3390/v15040962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/07/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
Cytomegalovirus (CMV) is associated with congenital infections. We aimed to validate the revised CMV immunoglobulin (Ig) M titer cutoff for IgG avidity measurements as a reflex test in maternal screening to identify women with primary CMV infection and newborn congenital cytomegalovirus (cCMV). We screened maternal CMV antibodies (the Denka assay) in Japan, from 2017 to 2019, using a revised IgM cutoff (≥4.00 index). Participants were tested for IgG and IgM antibodies, and for IgG avidity if IgM levels exceeded the cutoff. We compared these with corresponding results from 2013 to 2017 based on the original cutoff (≥1.21) and recalculated using the revised cutoff. Newborn urine CMV DNA tests were performed for women with low avidity (≤35.0%). Among 12,832 women screened in 2017-2019, 127 (1.0%) had IgM above the revised cutoff. Thirty-five exhibited low avidity, and seven infants developed cCMV. Of 19,435 women screened in 2013-2017, 184 (1.0%) had IgM above the revised cutoff, 67 had low avidity, and 1 had cCMV. The 2017-2019 results were not significantly different from the 2013-2017 results. The revised IgM cutoff improves maternal screening in identifying primary infection and newborn cCMV; however, further study related to other assays than Denka is required.
Collapse
Affiliation(s)
- Asa Kitamura
- Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
- Department of Obstetrics and Gynecology, National Hospital Organization Mie Chuo Medical Center, Tsu 514-8507, Japan
| | - Kuniaki Toriyabe
- Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
| | - Miki Hagimoto-Akasaka
- Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
| | - Kyoko Hamasaki-Shimada
- Department of Obstetrics and Gynecology, Kurashiki Medical Center, Okayama 710-8522, Japan
| | - Makoto Ikejiri
- Clinical Laboratory, Mie University Hospital, Tsu 514-8507, Japan
| | - Toshio Minematsu
- Research Center for Disease Control, Aisenkai Nichinan Hospital, Miyazaki 887-0034, Japan
| | - Shigeru Suga
- Institute for Clinical Research, National Hospital Organization Mie National Hospital, Tsu 514-8507, Japan
| | - Eiji Kondo
- Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
| | - Masamichi Kihira
- Mie Association of Obstetricians and Gynecologists, Tsu 514-8507, Japan
| | - Fumihiro Morikawa
- Mie Association of Obstetricians and Gynecologists, Tsu 514-8507, Japan
| | - Tomoaki Ikeda
- Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
| |
Collapse
|
3
|
Xu Y, Feng G, Yano T, Masuda S, Nagao M, Gotoh S, Ikejiri M, Tanabe M, Takeuchi K. Characteristic genetic spectrum of primary ciliary dyskinesia in Japanese patients and global ethnic heterogeneity: population-based genomic variation database analysis. J Hum Genet 2023. [PMID: 36864285 DOI: 10.1038/s10038-023-01142-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
Primary ciliary dyskinesia (PCD) is a hereditary disease caused by pathogenic variants in genes associated with motile cilia. Some variants responsible for PCD are reported to be ethnic-specific or geographical-specific. To identify the responsible PCD variants of Japanese PCD patients, we performed next-generation sequencing of a panel of 32 PCD genes or whole-exome sequencing in 26 newly identified Japanese PCD families. We then combined their genetic data with those from 40 Japanese PCD families reported previously, for an overall analysis of 66 unrelated Japanese PCD families. We conducted Genome Aggregation Database and TogoVar database analyses to reveal the PCD genetic spectrum of the Japanese population and compare with other ethnic groups worldwide. We identified 22 unreported variants among the 31 patients in the 26 newly identified PCD families, including 17 deleterious variants estimated to cause lack of transcription or nonsense-mediated mRNA decay and 5 missense mutations. In all 76 PCD patients from the 66 Japanese families, we identified 53 variants on 141 alleles in total. Copy number variation in DRC1 is the most frequent variant in Japanese PCD patients, followed by DNAH5 c.9018C>T. We found 30 variants specific to the Japanese population, of which 22 are novel. Furthermore, 11 responsible variants in the Japanese PCD patients are common in East Asian populations, while some variants are more frequent in other ethnic groups. In conclusion, PCD is genetically heterogeneous between different ethnicities, and Japanese PCD patients have a characteristic genetic spectrum.
Collapse
Affiliation(s)
- Yifei Xu
- Department of Otorhinolaryngology, Head & Neck Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Guofei Feng
- Department of Otorhinolaryngology, Head & Neck Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Taichi Yano
- Faculty of Medicine, Mie University, Tsu, Japan
| | - Sawako Masuda
- Department of Otorhinolaryngology, National Hospital Organization Mie National Hospital, Tsu, Japan
| | - Mizuho Nagao
- Institute for Clinical Research, National Hospital Organization Mie National Hospital, Tsu, Japan
| | - Shimpei Gotoh
- Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Makoto Ikejiri
- Department of Clinical Laboratory, Mie University Hospital, Tsu, Japan
| | - Masaki Tanabe
- Department of Clinical Laboratory, Mie University Hospital, Tsu, Japan
| | - Kazuhiko Takeuchi
- Department of Otorhinolaryngology, Head & Neck Surgery, Mie University Graduate School of Medicine, Tsu, Japan.
| |
Collapse
|
4
|
Mochiki I, Okugawa Y, Hashizume R, Imai H, Ikejiri M, Ogura T, Nakatani K, Hori H. Psychological characteristics of Japanese patients and their family members receiving genetic counseling: A single-institute exploratory study. J Genet Couns 2023; 32:128-139. [PMID: 36007133 DOI: 10.1002/jgc4.1629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 07/28/2022] [Accepted: 08/03/2022] [Indexed: 11/06/2022]
Abstract
In Japan, clinical genetic services became available in the 1970s, and genomic medicine, including genetic counseling (GC), developed rapidly. However, research on the outcomes of GC in Japan is limited. Japan has a unique cultural context, and appropriate GC methods have not yet been optimized for this population. The current study aimed to evaluate the psychological status of Japanese patients and their companions undergoing GC and the outcomes of GC. We used the Quality of Care Through the Patients' Eyes-gene cancer (QUOTE-geneCA ), the Genetic Counseling Outcome Scale-24 (GCOS-24), and the State-Trait Anxiety Inventory (STAI) to evaluate patients and their companions' needs and preferences regarding GC, empowerment, and anxiety, respectively. We evaluated stress status during GC by measuring saliva cortisol levels. QUOTE-geneCA results for patients (n = 69) and a group of patients and their companions (n = 96) revealed that participants felt that it was important that skilled medical staff explained medical information and provided advice in an easily understandable manner. Japanese patients and their companions regarded the procedural aspects of counseling as most important and their autonomy in decision-making as less important. GCOS-24 results revealed a significant increase in empowerment scores in 38 patients (by 9.63 points) from pre- to post-GC (p < 0.001; Cohen's d = 0.79). STAI results revealed a significant decrease in state anxiety for patients (6.11 points; p < 0.001; Cohen's d = 0.66). Cortisol levels in patients significantly decreased after GC (p = 0.001). The improvement of empowerment scores from pre- to post-GC among patients and their companions were significantly negatively correlated with pre-GC empowerment scores (p < 0.001), trait anxiety scores (p = 0.001), and the number of people living together (p = 0.011). The change of cortisol levels during GC in patients and their companions was significantly positively correlated with trait anxiety score (p = 0.027). This study suggested that these characteristics of Japanese patients and their companions may predict GC outcomes.
Collapse
Affiliation(s)
- Ikuyo Mochiki
- Center for Medical and Nursing Education, Mie University Faculty of Medicine, Tsu, Japan.,Department of Genomic Medicine, Mie University Hospital, Tsu, Japan
| | | | - Ryotaro Hashizume
- Department of Genomic Medicine, Mie University Hospital, Tsu, Japan.,Department of Pathology and Matrix Biology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Hiroshi Imai
- Department of Genomic Medicine, Mie University Hospital, Tsu, Japan.,Pathology Division, Mie University Hospital, Tsu, Japan
| | - Makoto Ikejiri
- Department of Clinical Laboratory, Mie University Hospital, Tsu, Japan
| | - Toru Ogura
- Clinical Research Support Center, Mie University Hospital, Tsu, Japan
| | - Kaname Nakatani
- Iga Health Screening Center, Iga City General Hospital, Tsu, Japan
| | - Hiroki Hori
- Center for Medical and Nursing Education, Mie University Faculty of Medicine, Tsu, Japan.,Department of Medical Education, Mie University Graduate School of Medicine, Tsu, Japan
| |
Collapse
|
5
|
Kitamura A, Toriyabe K, Hagimoto-Akasaka M, Ikejiri M, Minematsu T, Suga S, Kitano M, Takeuchi K, Usui S, Masuda S, Kondo E, Kihira M, Morikawa F, Ikeda T. Congenital Cytomegalovirus Infection and Maternal Primary Cytomegalovirus Infection in Universal Newborn Hearing Screening Referral Patients: A Prospective Cohort Study. CLIN EXP OBSTET GYN 2022. [DOI: 10.31083/j.ceog4912259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
6
|
Hirai T, Shinogi Y, Ikejiri M, Murata T, Iwamoto T. Evaluation of bleeding and anticoagulation markers by edoxaban and low-dose cyclosporine: A case series study. Biopharm Drug Dispos 2022; 43:192-200. [PMID: 36195699 DOI: 10.1002/bdd.2332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 09/21/2022] [Accepted: 09/29/2022] [Indexed: 11/06/2022]
Abstract
It was reported that high-dose cyclosporine at 500 mg daily increases edoxaban exposure. We investigated whether cyclosporine <500 mg daily leads to edoxaban-induced bleeding in the clinical setting. This case series study included patients receiving edoxaban and cyclosporine at Mie University Hospital. The outcomes were bleeding and anticoagulant markers, including activated partial thromboplastin time (APTT), prothrombin time (PT), and the international normalized ratio of prothrombin time (PT-INR). We examined the genotypes of cytochrome P450 3A5 (CYP3A5), multidrug resistance 1 (ABCB1), and solute carrier organic anion transporter 1B1 (SLCO1B1). Trends in anticoagulant markers were analyzed. Thirteen patients received edoxaban (standard dose; n = 3 and reduced dose; n = 10) and cyclosporine (1.94 ± 1.42 mg/kg). A bleeding event occurred in one patient receiving a standard dose of edoxaban plus cyclosporine of 25 mg daily (HAS-BLED score of 2 and genotypes; CYP3A5*3/*3, ABCB1 3435CT, and SLCO1B1*1a/*1b). After edoxaban treatment, anticoagulant markers were prolonged (APTT; 27.95 ± 3.64 seconds vs. 31.11 ± 3.90 seconds, p<0.001, PT; 11.53 ± 1.01 seconds vs. 13.03 ± 0.98 seconds, p = 0.002, PT-INR; 0.98 ± 0.09 vs. 1.11 ± 0.11, p = 0.007). In summary, the genotypes of CYP3A5, ABCB1, and SLCO1B1 and the dosage of edoxaban may affect the risk of bleeding by edoxaban when co-administered with cyclosporine, even at low doses. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Toshinori Hirai
- Department of Pharmacy, Mie University Hospital, Faculty of Medicine, Mie University, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Yuri Shinogi
- Department of Pharmacy, Mie University Hospital, Faculty of Medicine, Mie University, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Makoto Ikejiri
- Department of Clinical Laboratory, Mie University Hospital, Faculty of Medicine, Mie University, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Tomohiro Murata
- Department of Nephrology, Mie University Hospital, Faculty of Medicine, Mie University, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Takuya Iwamoto
- Department of Pharmacy, Mie University Hospital, Faculty of Medicine, Mie University, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| |
Collapse
|
7
|
Higashi S, Sasaki T, Uchida K, Kageyama T, Ikejiri M, Matsumoto R, Kato M, Masui S, Yoshio Y, Nishikawa K, Okugawa Y, Watanabe M, Inoue T. Succinate dehydrogenase B-deficient renal cell carcinoma with a germline variant in a Japanese patient: a case report. Hum Genome Var 2022; 9:25. [PMID: 35869040 PMCID: PMC9307839 DOI: 10.1038/s41439-022-00202-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 06/13/2022] [Accepted: 06/27/2022] [Indexed: 01/11/2023] Open
Abstract
Succinate dehydrogenase (SDH)-deficient renal cell carcinoma (RCC) is a rare renal cancer. A 75-year-old Japanese female presented with gross hematuria. Computed tomography revealed two tumors in the left kidney, which were resected. Immunohistochemistry indicated negative staining for the B subunit of SDH (SDHB) in the resected specimen, leading to a final diagnosis of SDHB-deficient RCC. Genetic testing for SDHB showed a RCC germline variant in exon 6 (NM_003000.3:c.642 G > C) that was previously reported but associated with a novel phenotype (i.e., RCC). Twenty-six years prior, her daughter, who was 25 years old at the time, had undergone radical nephrectomy for a pathologic diagnosis of renal oncocytoma of the right kidney; SDHB immunostaining of her daughter's tumor was also negative retrospectively. We confirmed that her daughter carried the germline variant in SDHB exon 6, similar to the patient. The patient had no evidence of disease progression at 15 months after surgery.
Collapse
Affiliation(s)
- Shinichiro Higashi
- grid.260026.00000 0004 0372 555XDepartment of Nephro-Urologic Surgery and Andrology, Mie University Graduate School of Medicine, Mie, Japan
| | - Takeshi Sasaki
- grid.260026.00000 0004 0372 555XDepartment of Nephro-Urologic Surgery and Andrology, Mie University Graduate School of Medicine, Mie, Japan
| | - Katsunori Uchida
- grid.260026.00000 0004 0372 555XDepartment of Oncologic Pathology, Mie University Graduate School of Medicine, Mie, Japan
| | - Takumi Kageyama
- grid.260026.00000 0004 0372 555XDepartment of Nephro-Urologic Surgery and Andrology, Mie University Graduate School of Medicine, Mie, Japan
| | - Makoto Ikejiri
- grid.412075.50000 0004 1769 2015Central Laboratory, Mie University Hospital, Mie, Japan
| | - Ryuki Matsumoto
- grid.260026.00000 0004 0372 555XDepartment of Nephro-Urologic Surgery and Andrology, Mie University Graduate School of Medicine, Mie, Japan
| | - Manabu Kato
- grid.260026.00000 0004 0372 555XDepartment of Nephro-Urologic Surgery and Andrology, Mie University Graduate School of Medicine, Mie, Japan
| | - Satoru Masui
- grid.260026.00000 0004 0372 555XDepartment of Nephro-Urologic Surgery and Andrology, Mie University Graduate School of Medicine, Mie, Japan
| | - Yuko Yoshio
- grid.260026.00000 0004 0372 555XDepartment of Nephro-Urologic Surgery and Andrology, Mie University Graduate School of Medicine, Mie, Japan
| | - Kouhei Nishikawa
- grid.260026.00000 0004 0372 555XDepartment of Nephro-Urologic Surgery and Andrology, Mie University Graduate School of Medicine, Mie, Japan
| | - Yoshinaga Okugawa
- grid.412075.50000 0004 1769 2015Department of Genomic Medicine, Mie University Hospital, Mie, Japan
| | - Masatoshi Watanabe
- grid.260026.00000 0004 0372 555XDepartment of Oncologic Pathology, Mie University Graduate School of Medicine, Mie, Japan
| | - Takahiro Inoue
- grid.260026.00000 0004 0372 555XDepartment of Nephro-Urologic Surgery and Andrology, Mie University Graduate School of Medicine, Mie, Japan
| |
Collapse
|
8
|
Abo M, Takeuchi K, Ikejiri M, Ueno T, Yoneda T, Hara J, Ohkura N, Watanabe S, Kasahara K, Yano S. Primary ciliary dyskinesia with CCDC39 variants displaying specific ciliary ultrastructure and movement concordant with the genotype: A case report. Respir Investig 2022; 60:725-728. [PMID: 35817681 DOI: 10.1016/j.resinv.2022.05.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 04/26/2022] [Accepted: 05/20/2022] [Indexed: 11/17/2022]
Abstract
Primary ciliary dyskinesia (PCD) is a genetic disease with chronic airway infection and inflammation caused by ciliary ultrastructural defects and impairment in ciliary function. We present an adult case of PCD with compound heterozygous nonsense variants in CCDC39. The ciliary ultrastructure findings using electron microscopy and ciliary movement using high-speed video analysis matched the genotype. This is the first case report of PCD with CCDC39 variants in Japan demonstrating specific ciliary ultrastructure and movement related to the genotype.
Collapse
Affiliation(s)
- Miki Abo
- Kanazawa University Health Service Center, Kakuma-machi, Kanazawa, Ishikawa, 920-1192, Japan; Department of Respiratory Medicine, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.
| | - Kazuhiko Takeuchi
- Department of Otorhinolaryngology, Head & Neck Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Makoto Ikejiri
- Department of Clinical Laboratory, Mie University Hospital, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Takayoshi Ueno
- Department of Otorhinolaryngology, Head & Neck Surgery, Graduate School of Medical Science Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Tomoaki Yoneda
- Department of Respiratory Medicine, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Johsuke Hara
- Department of Respiratory Medicine, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Noriyuki Ohkura
- Department of Respiratory Medicine, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Satoshi Watanabe
- Department of Respiratory Medicine, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Kazuo Kasahara
- Department of Respiratory Medicine, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Seiji Yano
- Department of Respiratory Medicine, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| |
Collapse
|
9
|
Okugawa Y, Fujiwara T, Kitajima T, Nakamura M, Ikejiri M, Sasaki T, Yamada R, Uchida K, Hashizume R, Imai H, Tono Y, Saito K, Mochiki I, Mizuno T, Toiyama Y, Nakatani K. P52-5 Effort of Cancer Genome Center Hospital in Rural National University. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.05.309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
|
10
|
Maekawa M, Taniguchi T, Nishio K, Sakai K, Matsushita K, Nakatani K, Ishige T, Ikejiri M, Nishihara H, Sunami K, Yatabe Y, Hatanaka KC, Hatanaka Y, Yamamoto Y, Fukuyama K, Oda S, Saito K, Yokomura M, Kubo Y, Sato H, Tanaka Y, Fuchioka M, Yamasaki T, Matsuda K, Kurachi K, Funai K, Baba S, Iwaizumi M. Precision cancer genome testing needs proficiency testing involving all stakeholders. Sci Rep 2022; 12:1494. [PMID: 35087199 PMCID: PMC8795413 DOI: 10.1038/s41598-022-05589-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 01/13/2022] [Indexed: 01/17/2023] Open
Abstract
To implement precision oncology, analytical validity as well as clinical validity and utility are important. However, proficiency testing (PT) to assess validity has not yet been systematically performed in Japan. To investigate the quality of next-generation sequencing (NGS) platforms and cancer genome testing prevalent in laboratories, we performed pilot PT using patient samples. We prepared genomic DNA from the cancer tissue and peripheral blood of 5 cancer patients and distributed these to 15 laboratories. Most participating laboratories successfully identified the pathogenic variants, except for two closely located KRAS variants and 25 bp delins in EGFR. Conversely, the EGFR L858R variant was successfully identified, and the allele frequency was similar for all the laboratories. A high DNA integrity number led to excellent depth and reliable NGS results. By conducting this pilot study using patient samples, we were able to obtain a glimpse of the current status of cancer genome testing at participating laboratories. To enhance domestic cancer genome testing, it is important to conduct local PT and to involve the parties concerned as organizers and participants.
Collapse
Affiliation(s)
- Masato Maekawa
- Department of Laboratory Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan.
| | - Terumi Taniguchi
- Department of Laboratory Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Kazuto Nishio
- Department of Genome Biology, Kindai University Faculty of Medicine, Sayama, Japan
| | - Kazuko Sakai
- Department of Genome Biology, Kindai University Faculty of Medicine, Sayama, Japan
| | | | - Kaname Nakatani
- Department of Clinical Laboratory, Mie University Hospital, Tsu, Japan.,Iga City General Hospital, Iga, Japan
| | - Takayuki Ishige
- Department of Laboratory Medicine, Chiba University Hospital, Chiba, Japan
| | - Makoto Ikejiri
- Department of Clinical Laboratory, Mie University Hospital, Tsu, Japan
| | - Hiroshi Nishihara
- Genomics Unit, Keio Cancer Center, Keio University School of Medicine, Tokyo, Japan
| | - Kuniko Sunami
- Department of Laboratory Medicine, National Cancer Center Hospital, Tokyo, Japan
| | - Yasushi Yatabe
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan
| | - Kanako C Hatanaka
- Center for Development of Advanced Diagnostics, Hokkaido University Hospital, Sapporo, Japan
| | - Yutaka Hatanaka
- Center for Development of Advanced Diagnostics, Hokkaido University Hospital, Sapporo, Japan.,Research Division of Genome Companion Diagnostics, Hokkaido University Hospital, Sapporo, Japan
| | - Yoshihiro Yamamoto
- Department of Clinical Oncology, Kyoto University Hospital, Kyoto, Japan
| | - Keita Fukuyama
- Department of Clinical Oncology, Kyoto University Hospital, Kyoto, Japan
| | - Shinya Oda
- Cancer Genetics Laboratory, Clinical Research Institute, National Hospital Organization, Kyushu Cancer Center, Fukuoka, Japan
| | - Kayoko Saito
- Institute of Medical Genetics, Tokyo Women's Medical Genetics, Tokyo, Japan
| | - Mamoru Yokomura
- Institute of Medical Genetics, Tokyo Women's Medical Genetics, Tokyo, Japan
| | - Yuji Kubo
- Genetic Analysis Department, Tsukiji Registered Clinical Laboratory, Riken Genesis Co., Ltd., National Cancer Center, Tokyo, Japan
| | - Hiroko Sato
- Genetic Analysis Department, Kawasaki Registered Clinical Laboratory, RIKEN Genesis Co., Ltd., Life Innovation Center, Kawasaki, Japan
| | - Yoshinori Tanaka
- Genetic Analysis Department, Kawasaki Registered Clinical Laboratory, RIKEN Genesis Co., Ltd., Life Innovation Center, Kawasaki, Japan
| | - Misa Fuchioka
- Genetic & Pathology Department, SRL, Inc., Hachioji, Japan
| | | | - Koichiro Matsuda
- Molecular Genetic Analysis Department, Advanced Technology Center, LSI Medience Corporation, Tokyo, Japan
| | - Kiyotaka Kurachi
- Second Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Kazuhiro Funai
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Satoshi Baba
- Department of Diagnostic Pathology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Moriya Iwaizumi
- Department of Laboratory Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| |
Collapse
|
11
|
Feng G, Xu Y, Saso S, Sasano H, Kondoh S, Itani H, Gotoh S, Nagao M, Ikejiri M, Tanabe M, Takeuchi K. A Novel Homozygous Variant in GAS2L2 in Two Sisters with Primary Ciliary Dyskinesia. Intern Med 2022; 61:2765-2769. [PMID: 36104176 PMCID: PMC9556235 DOI: 10.2169/internalmedicine.8884-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Primary ciliary dyskinesia (PCD) is a rare hereditary disease. We herein report two sisters in their 20s with suspected PCD. They were both born at full term and did not have situs inversus. Chest computed tomography showed similar signs of bronchiectasis in both siblings. Genetic examinations of the family confirmed that the sisters both harbored a homozygous variant in the growth-arrest-specific 2-like 2 (GAS2L2) gene. This is the third report of a family with PCD caused by a GAS2L2 variant.
Collapse
Affiliation(s)
- Guofei Feng
- Department of Otorhinolaryngology, Head & Neck Surgery, Mie University Graduate School of Medicine, Japan
| | - Yifei Xu
- Department of Otorhinolaryngology, Head & Neck Surgery, Mie University Graduate School of Medicine, Japan
| | - Shun Saso
- Faculty of Medicine, Mie University, Japan
| | - Hajime Sasano
- Department of Respiratory Medicine, Japan Red Cross Ise Hospital, Japan
- Department of Respiratory Medicine and Allergy, Tosei General Hospital, Japan
| | - Shigeto Kondoh
- Department of Respiratory Medicine, Japan Red Cross Ise Hospital, Japan
| | - Hidetoshi Itani
- Department of Respiratory Medicine, Japan Red Cross Ise Hospital, Japan
| | - Shimpei Gotoh
- Department of Drug Discovery for Lung Diseases, Graduate School of Medicine, Kyoto University, Japan
| | - Mizuho Nagao
- Institute for Clinical Research, National Hospital Organization Mie National Hospital, Japan
| | - Makoto Ikejiri
- Department of Clinical Laboratory, Mie University Hospital, Japan
| | - Masaki Tanabe
- Department of Clinical Laboratory, Mie University Hospital, Japan
| | - Kazuhiko Takeuchi
- Department of Otorhinolaryngology, Head & Neck Surgery, Mie University Graduate School of Medicine, Japan
| |
Collapse
|
12
|
Shimada K, Toriyabe K, Kitamura A, Morikawa F, Ikejiri M, Minematsu T, Nakamura H, Suga S, Ikeda T. Characteristics and serology of pregnant women with cytomegalovirus immunoglobulin G seroconversion during pregnancy in Japan. Taiwan J Obstet Gynecol 2021; 60:621-627. [PMID: 34247798 DOI: 10.1016/j.tjog.2021.05.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/26/2021] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE Investigate the characteristics and serology of pregnant women with cytomegalovirus (CMV) immunoglobulin (Ig)G seroconversion during pregnancy to understand the risk factors associated with primary CMV infection and the occurrence of fetal congenital CMV infection. MATERIALS AND METHODS We retrospectively studied 3202 pregnant women who were CMV IgG-negative in early pregnancy and were retested for IgG in late pregnancy. Characteristics were compared between participants with and without IgG seroconversion, and serological parameters were compared between participants with and without fetal congenital CMV infection. RESULTS Twenty-six participants showed CMV IgG seroconversion and fifteen showed fetal congenital CMV infection. Seroconversion rates were significantly higher in teens (5.0%) than in older women (20s: 0.8%; 30s and over: 0.6%) (p < 0.001). Titers of CMV IgM at IgG seroconversion were higher in women without (median 8.66) than with (median 6.54) congenital infection (p = 0.045). The congenital infection rate was high when IgM titers at IgG seroconversion were low (47.1% with 4.00-12.00 titers and 100% with 1.21-3.99 IgM titers) (p = 0.048). CONCLUSIONS Nulliparous pregnant teenagers have a high risk of CMV IgG seroconversion and the CMV IgM titer at IgG seroconversion may help predict the occurrence of fetal congenital CMV infection.
Collapse
Affiliation(s)
- Kyoko Shimada
- Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Tsu, Japan; Mie Association of Obstetricians and Gynecologists, Tsu, Japan
| | - Kuniaki Toriyabe
- Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Tsu, Japan; Mie Association of Obstetricians and Gynecologists, Tsu, Japan.
| | - Asa Kitamura
- Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Tsu, Japan; Mie Association of Obstetricians and Gynecologists, Tsu, Japan
| | | | | | - Toshio Minematsu
- Center for Disease Control, Aisenkai Nichinan Hospital, Nichinan, Japan
| | - Haruna Nakamura
- Institute for Clinical Research, National Mie Hospital, Tsu, Japan
| | - Shigeru Suga
- Institute for Clinical Research, National Mie Hospital, Tsu, Japan
| | - Tomoaki Ikeda
- Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Tsu, Japan; Mie Association of Obstetricians and Gynecologists, Tsu, Japan
| |
Collapse
|
13
|
Nishimura M, Nagaharu K, Ikejiri M, Sugimoto Y, Sasao R, Ohya E, Mizutani M, Ohishi K, Tawara I, Sekine T. Acquisition of JAK2 V617F to CALR-mutated clones accelerates disease progression and might enhance growth capacity. Br J Haematol 2021; 194:e89-e92. [PMID: 34060068 DOI: 10.1111/bjh.17571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Misa Nishimura
- Department of Hematology and Oncology, Matsusaka Chuo General Hospital, Matsusaka, Mie, Japan
| | - Keiki Nagaharu
- Department of Hematology and Oncology, Mie University Graduate School of Medicine/Faculty of Medicine, Tsu, Mie, Japan
| | - Makoto Ikejiri
- Central Laboratory Department, Mie University Hospital, Tsu, Mie, Japan
| | - Yuka Sugimoto
- Department of Community Hematology, Mie University Faculty of Medicine, Takeuchi Hospital, Tsu, Mie, Japan
| | - Ryota Sasao
- Department of Hematology and Oncology, Matsusaka Chuo General Hospital, Matsusaka, Mie, Japan
| | - Eiko Ohya
- Department of Hematology and Oncology, Matsusaka Chuo General Hospital, Matsusaka, Mie, Japan
| | - Minoru Mizutani
- Department of Hematology and Oncology, Matsusaka Chuo General Hospital, Matsusaka, Mie, Japan
| | - Kohshi Ohishi
- Transfusion Medicine and Cell Therapy, Mie University Hospital, Tsu, Mie, Japan
| | - Isao Tawara
- Department of Hematology and Oncology, Mie University Graduate School of Medicine/Faculty of Medicine, Tsu, Mie, Japan
| | - Takao Sekine
- Department of Hematology and Oncology, Matsusaka Chuo General Hospital, Matsusaka, Mie, Japan
| |
Collapse
|
14
|
Xu Y, Ogawa S, Adachi Y, Sone N, Gotoh S, Ikejiri M, Nakatani K, Takeuchi K. A pediatric case of primary ciliary dyskinesia caused by novel copy number variation in PIH1D3. Auris Nasus Larynx 2021; 49:893-897. [PMID: 33812756 DOI: 10.1016/j.anl.2021.03.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 02/19/2021] [Accepted: 03/16/2021] [Indexed: 01/15/2023]
Abstract
An 11-month-old boy with productive cough was referred to our hospital. He had nasal obstruction immediately after birth, and wheezing, wet cough, and rhinorrhea were observed daily after the neonatal period. Clinical and imaging findings revealed secretory otitis media, chronic sinusitis, and bronchiectasis. Primary ciliary dyskinesia was suspected. Transmission electron microscopy of nasal cilia showed defects of the outer and inner dynein arms. Genetic examinations of the family revealed copy number variation in PIH1 domain-containing 3 (PIH1D3) in the proband and mother. This is the first report of a Japanese patient with primary ciliary dyskinesia caused by copy number variation in PIH1D3.
Collapse
Affiliation(s)
- Yifei Xu
- Department of Otorhinolaryngology, Head & Neck Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Satoru Ogawa
- Electron Microscopy Research Center, Mie University Graduate School of Medicine, Tsu, Japan
| | - Yuichi Adachi
- Department of Pediatrics, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Naoyuki Sone
- Department of Drug Discovery for Lung Diseases, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shimpei Gotoh
- Department of Drug Discovery for Lung Diseases, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Makoto Ikejiri
- Department of Central Laboratories, Mie University Hospital, Tsu, Mie, Japan
| | - Kaname Nakatani
- Department of Genomic Medicine, Mie University Hospital, Tsu, Japan
| | - Kazuhiko Takeuchi
- Department of Otorhinolaryngology, Head & Neck Surgery, Mie University Graduate School of Medicine, Tsu, Japan.
| |
Collapse
|
15
|
Sugimoto Y, Nagaharu K, Ohishi K, Nakamura M, Ikejiri M, Nakatani K, Mizutani M, Tamaki S, Ikeda T, Tawara I, Katayama N. MPL exon 10 mutations other than canonical MPL W515L/K mutations identified by in-house MPL exon 10 direct sequencing in essential thrombocythemia. Int J Hematol 2021; 113:618-621. [PMID: 33770389 DOI: 10.1007/s12185-021-03134-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 03/10/2021] [Accepted: 03/11/2021] [Indexed: 11/30/2022]
Abstract
MPL exon 10 mutations are one of the driver mutations in essential thrombocythemia (ET) or myelofibrosis (MF). We have established an in-house MPL mutation analysis system, covering the entire region of MPL exon 10 by direct sequencing. Since 2009, MPL exon 10 mutation analysis has been performed for diagnosis of myeloproliferative neoplasms (MPN) without JAK2 V617F or CALR exon 9 mutations. So far, 11 cases of MPL exon 10 mutation have been found in 51 patients with suspected MPN. In patients with ET, we detected five non-canonical MPL mutations including one novel mutation, MPL R514_P518delinsK, and one canonical MPL W515L mutation. Notably, three ET patients without canonical MPL mutations had thrombotic events. Meanwhile, in primary or secondary MF, only canonical MPL W515L/K mutations were found. Further cases need to be examined to elucidate the full MPL mutation profile in MPN. However, our data indicate that analysis of the whole of MPL exon 10 is warranted for the diagnosis of MPL mutations, especially in ET, and that the use of Japanese commercial laboratory tests that only detect canonical MPL W515L/K mutations may miss a significant percentage of MPL exon 10 mutations, which could delay the administration of anti-thrombotic therapy.
Collapse
Affiliation(s)
- Yuka Sugimoto
- Department of Community Hematology, Mie University Faculty of Medicine, Takeuchi Hospital, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan.
| | - Keiki Nagaharu
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Kohshi Ohishi
- Transfusion Medicine and Cell Therapy, Mie University Hospital, Tsu, Japan
| | - Maki Nakamura
- Department of Clinical Laboratory, Mie University Hospital, Tsu, Japan
| | - Makoto Ikejiri
- Department of Clinical Laboratory, Mie University Hospital, Tsu, Japan
| | - Kaname Nakatani
- Department of Clinical Laboratory, Mie University Hospital, Tsu, Japan
| | - Minoru Mizutani
- Department of Hematology, Matsusaka Chuo General Hospital, Matsusaka, Japan
| | - Shigehisa Tamaki
- Department of Hematology, Japanese Red Cross Ise Hospital, Ise, Japan
| | - Takeshi Ikeda
- Internal Medicine, Ise Municipal General Hospital, Ise, Japan
| | - Isao Tawara
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Naoyuki Katayama
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Japan.,Suzuka University of Medical Science, Suzuka, Japan
| |
Collapse
|
16
|
Mizutani K, Nakanishi T, Ikejiri M, Yuasa H, Matsushima Y, Kondo M, Nakai Y, Habe K, Nakatani K, Yamanaka K. Development of cutaneous squamous cell carcinoma during pembrolizumab therapy. J Dermatol 2020; 48:e7-e8. [PMID: 32940367 DOI: 10.1111/1346-8138.15614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kento Mizutani
- Departments of, Department of, Dermatology, Graduate School of Medicine, Mie University, Tsu, Japan
| | - Takehisa Nakanishi
- Departments of, Department of, Dermatology, Graduate School of Medicine, Mie University, Tsu, Japan
| | - Makoto Ikejiri
- Department of, Clinical Laboratory, Graduate School of Medicine, Mie University, Tsu, Japan
| | - Hiroto Yuasa
- Department of, Pathology, Graduate School of Medicine, Mie University, Tsu, Japan
| | - Yoshiaki Matsushima
- Departments of, Department of, Dermatology, Graduate School of Medicine, Mie University, Tsu, Japan
| | - Makoto Kondo
- Departments of, Department of, Dermatology, Graduate School of Medicine, Mie University, Tsu, Japan
| | - Yasuo Nakai
- Departments of, Department of, Dermatology, Graduate School of Medicine, Mie University, Tsu, Japan
| | - Koji Habe
- Departments of, Department of, Dermatology, Graduate School of Medicine, Mie University, Tsu, Japan
| | - Kaname Nakatani
- Department of, Clinical Laboratory, Graduate School of Medicine, Mie University, Tsu, Japan
| | - Keiichi Yamanaka
- Departments of, Department of, Dermatology, Graduate School of Medicine, Mie University, Tsu, Japan
| |
Collapse
|
17
|
Oda H, Mizuno T, Ikejiri M, Nakamura M, Tsunoda A, Ishihara M, Saito K, Tamaru S, Yamashita Y, Nishimura Y, Nakatani K, Katayama N. Risk factors for cisplatin-induced acute kidney injury: A pilot study on the usefulness of genetic variants for predicting nephrotoxicity in clinical practice. Mol Clin Oncol 2020; 13:58. [PMID: 32953112 PMCID: PMC7484732 DOI: 10.3892/mco.2020.2127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 07/01/2020] [Indexed: 12/13/2022] Open
Abstract
Several studies have reported risk factors for predicting cisplatin-induced acute kidney injury (AKI), including old age, female sex, smoking, hypoalbuminemia, hypokalemia, hypomagnesemia, a high body surface area, advanced cancer and the total dose of cisplatin administered. Recently, some studies have focused on the associations between genetic alterations in the genes coding for renal drug transporters, such as organic cation transporter 2 (OCT2), and the nephrotoxicity of cisplatin. However, genetic variants have not been fully elucidated for clinical use. Patients who had received cisplatin (≥50 mg/m2)-containing chemotherapy as a first-line treatment were considered as eligible for the present study. The occurrence of AKI and its associations with baseline characteristics, conventional biomarkers and single-nucleotide variants (SNV) were assessed. AKI was defined as an increase in the serum creatinine level of >0.3 mg/dl or to 1.5-2 times the baseline level. Genotyping was conducted using the DMET platform (DMET Plus), which characterizes 1,936 genetic variants (1,931 SNV and 5 copy number variations) in 231 genes. Between April 2014 and June 2016, a total of 28 patients (22 men and 6 women) were enrolled. AKI occurred in 8 of the 28 enrolled patients (28.6%). Univariate analyses demonstrated that the urinary β2-microglobulin level and body surface area were significantly higher in the AKI group (P<0.05). As regards the associations between AKI and SNV, none of the examined SNV were found to be associated with cisplatin-induced AKI. The findings of the present study suggested that certain clinical factors were associated with the onset of AKI, but no associations were identified with genetic factors, including OCT2. Although this was a small pilot study, the findings indicated that genetic factors may not be of value for predicting AKI in clinical practice.
Collapse
Affiliation(s)
- Hiroyasu Oda
- Department of Medical Oncology, Mie University Graduate School of Medicine, Tsu, Mie 5148507, Japan
| | - Toshiro Mizuno
- Department of Medical Oncology, Mie University Graduate School of Medicine, Tsu, Mie 5148507, Japan
| | - Makoto Ikejiri
- Department of Clinical Laboratory, Mie University Graduate School of Medicine, Tsu, Mie 5148507, Japan.,Department of Genomic Medicine, Mie University Graduate School of Medicine, Tsu, Mie 5148507, Japan
| | - Maki Nakamura
- Department of Clinical Laboratory, Mie University Graduate School of Medicine, Tsu, Mie 5148507, Japan.,Department of Genomic Medicine, Mie University Graduate School of Medicine, Tsu, Mie 5148507, Japan
| | - Akira Tsunoda
- Department of Medical Oncology, Mie University Graduate School of Medicine, Tsu, Mie 5148507, Japan
| | - Mikiya Ishihara
- Department of Medical Oncology, Mie University Graduate School of Medicine, Tsu, Mie 5148507, Japan
| | - Kanako Saito
- Department of Medical Oncology, Mie University Graduate School of Medicine, Tsu, Mie 5148507, Japan
| | - Satoshi Tamaru
- Department of Medical Oncology, Mie University Graduate School of Medicine, Tsu, Mie 5148507, Japan
| | - Yoshiki Yamashita
- Department of Medical Oncology, Mie University Graduate School of Medicine, Tsu, Mie 5148507, Japan
| | - Yuhei Nishimura
- Department of Integrative Pharmacology, Mie University Graduate School of Medicine, Tsu, Mie 5148507, Japan
| | - Kaname Nakatani
- Department of Clinical Laboratory, Mie University Graduate School of Medicine, Tsu, Mie 5148507, Japan.,Department of Genomic Medicine, Mie University Graduate School of Medicine, Tsu, Mie 5148507, Japan
| | - Naoyuki Katayama
- Department of Medical Oncology, Mie University Graduate School of Medicine, Tsu, Mie 5148507, Japan
| |
Collapse
|
18
|
Yoshizawa N, Sugimoto K, Tameda M, Inagaki Y, Ikejiri M, Inoue H, Usui M, Ito M, Takei Y. miR-3940-5p/miR-8069 ratio in urine exosomes is a novel diagnostic biomarker for pancreatic ductal adenocarcinoma. Oncol Lett 2020; 19:2677-2684. [PMID: 32218818 PMCID: PMC7068395 DOI: 10.3892/ol.2020.11357] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 11/11/2019] [Indexed: 02/07/2023] Open
Abstract
Despite the development of several therapeutic options, the prognosis of pancreatic cancer remains poor. One reason for this is the difficulty of diagnosing the disease at an early stage. For example, carbohydrate antigen (CA) 19-9, which is the most widely used biomarker for pancreatic cancer, cannot be used to detect the disease at early stages. Some studies have attempted to find novel biomarkers for pancreatic cancer. The aim of the present study was to find a novel diagnostic biomarker for pancreatic ductal adenocarcinoma (PDAC) in urine exosomes. Exosomes were isolated from urine and serum samples of patients with PDAC and control subjects, or culture media of cancer cell lines. MicroRNAs (miRNAs) were purified from exosomes. Novel biomarker candidates for PDCA were identisfied from urine exosome miRNA using expression profiling, and validated in a larger number of samples using 3D digital PCR. The results of a preliminary analysis of nine PDAC and seven control subjects revealed that the miR-3940-5p/miR-8069 ratio in urine exosomes was elevated in the patients with PDAC. Experiments using cultured cancer cell lines revealed that the elevation of the miR-3940-5p/miR-8069 ratio was specific for PDAC. Furthermore, the elevation of the miR-3940-5p/miR-8069 ratio in exosomes tended to be higher in the urine than in the serum of patients with PDAC. Validation experiments on 43 PDAC, 12 chronic pancreatitis and 25 control subjects demonstrated that the miR-3940-5p/miR-8069 ratio in urine exosomes was elevated in PDAC at a relatively early stage of the disease. When this ratio was used in combination with CA19-9 for the diagnosis of PDAC, the sensitivity and positive predictive value improved to 93.0 and 78.4%, respectively, when either of them was positive. Additionally, the positive predictive value reached 100% when both were positive. The negative predictive value also improved to 89.7% when both were negative. The miR-3940-5p/miR-8069 ratio in urine exosomes may be useful as a tool for the diagnosis of PDAC, particularly when used in combination with CA19-9.
Collapse
Affiliation(s)
- Naohiko Yoshizawa
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Kazushi Sugimoto
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
- Department of Central Laboratory, Mie University Hospital, Tsu, Mie 514-8507, Japan
- Correspondence to: Dr Kazushi Sugimoto, Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan, E-mail:
| | - Masahiko Tameda
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Yuji Inagaki
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Makoto Ikejiri
- Department of Central Laboratory, Mie University Hospital, Tsu, Mie 514-8507, Japan
| | - Hiroyuki Inoue
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Masanobu Usui
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Masaaki Ito
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Yoshiyuki Takei
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| |
Collapse
|
19
|
Shindo A, Wada H, Ishikawa H, Ii Y, Ikejiri M, Matsumoto T, Tomimoto H. Abstract TP229: Cerebral Venous Thrombosis Caused by Congenital Thrombophilia in Japan. Stroke 2020. [DOI: 10.1161/str.51.suppl_1.tp229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Cerebral venous thrombosis is an uncommon type of stroke that sometimes affects young to middle-aged patients. Various conditions can cause CVT, including drugs, infection, dehydration, pregnancy, malignancies, and acquired and congenital thrombophilia. Hereditary thrombophilia caused by genetic mutation, such as antithrombin, protein C (PC) and protein S (PS), requires warning about the risk and signs of thrombosis recurring. Because CVT itself is a rare disease, it’s sometimes difficult to diagnosis the hereditary thrombophilia in each case. This study describes the clinical features and causes related to CVT in Japan, and elucidates the characteristics of CVT caused by hereditary thrombophilia.
Methods:
We enrolled 40 patients (24 males, 16 females, age: 18-81 years) diagnosed CVT confirmed by either magnetic resonance venography, enhanced computed tomography, or angiography. Demographic data and clinical features were recorded and compared.
Results:
Eleven patients (6 males, 5 females, age: 27-71 years) were diagnosed CVT due to congenital thrombophilia, and the other twenty-nine patients (18 males, 11 females, age: 18-81 years) were not. Congenital thrombophilia included five patients with PS gene mutation, three with PC gene mutation, two with antithrombin gene mutation, and one alpha fibrinogen gene mutation. Although we failed to detect a significant statistical difference between congenital thrombophilia patients and others with regards to age, sex, symptoms, vein of occlusion, d-dimer levels, activity levels of PS and PC were significantly decreased in congenital thrombophilia patients.
Discussion:
Cerebral venous thrombosis in Japanese patients is frequently associated PS or PC gene mutations. This study showed CVT caused by congenital thrombophilia had low activity of PS and PC. Clinicians should aware the presence of PS or PC gene mutations during the treatment of CVT and check the PS and PC activity.
Collapse
Affiliation(s)
| | - Hideo Wada
- Mie Prefectural General Med Cntr, Yokkaichi, Japan
| | | | - Yuichiro Ii
- Neurology, Mie Univ Graduate Sch of Medicine, Tsu Mie, Japan
| | - Makoto Ikejiri
- Central Clinical Laboratories, Mie Univ Hosp, Tsu Mie, Japan
| | - Takeshi Matsumoto
- Div of Blood Transfusion Medicine and Cell Therapy, Mie Univ Hosp, Tsu Mie, Japan
| | | |
Collapse
|
20
|
Takeuchi K, Xu Y, Kitano M, Chiyonobu K, Abo M, Ikegami K, Ogawa S, Ikejiri M, Kondo M, Gotoh S, Nagao M, Fujisawa T, Nakatani K. Copy number variation in DRC1 is the major cause of primary ciliary dyskinesia in the Japanese population. Mol Genet Genomic Med 2020; 8:e1137. [PMID: 31960620 PMCID: PMC7057087 DOI: 10.1002/mgg3.1137] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 12/27/2019] [Accepted: 01/07/2020] [Indexed: 12/22/2022] Open
Abstract
Background Primary ciliary dyskinesia (PCD) is a rare genetic disorder caused by functional impairment of cilia throughout the body. The involvement of copy number variation (CNV) in the development of PCD is largely unknown. Methods We examined 93 Japanese patients with clinically suspected PCD from 84 unrelated families. CNV was examined either by exome sequencing of a PCD gene panel or by whole‐exome sequencing (WES). The identified alterations were validated by PCR and Sanger sequencing. Nasal ciliary ultrastructure was examined by electron microscopy. Results Analysis of CNV by the panel or WES revealed a biallelic deletion in the dynein regulatory complex subunit 1 (DRC1) gene in 21 patients, which accounted for 49% of the PCD patients in whom a disease‐causing gene was found. Sanger sequencing of the PCR product revealed a 27,748‐bp biallelic deletion including exons 1–4 of DRC1 with identical breakpoints in all 21 patients. The ciliary ultrastructure of the patients with this CNV showed axonemal disorganization and the loss or gain of central microtubules. Conclusion The deletion of DRC1 is the major cause of PCD in Japan and this alteration can cause various ciliary ultrastructural abnormalities.
Collapse
Affiliation(s)
- Kazuhiko Takeuchi
- Department of Otorhinolaryngology, Head & Neck Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Yifei Xu
- Department of Otorhinolaryngology, Head & Neck Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Masako Kitano
- Department of Otorhinolaryngology, Head & Neck Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Kazuki Chiyonobu
- Department of Otorhinolaryngology, Head & Neck Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Miki Abo
- Department of Respiratory Medicine, Kanazawa University, Kanazawa, Japan
| | - Koji Ikegami
- Department of Anatomy and Developmental Biology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Satoru Ogawa
- Electron Microscopy Research Center, Mie University Graduate School of Medicine, Tsu, Japan
| | - Makoto Ikejiri
- Department of Central Laboratories, Mie University Hospital, Tsu, Japan
| | - Mitsuko Kondo
- Department of Respiratory Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Shimpei Gotoh
- Department of Drug Discovery for Lung Diseases, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Mizuho Nagao
- Institute for Clinical Research, National Hospital Organization Mie National Hospital, Tsu, Japan
| | - Takao Fujisawa
- Institute for Clinical Research, National Hospital Organization Mie National Hospital, Tsu, Japan
| | - Kaname Nakatani
- Department of Genomic Medicine, Mie University Hospital, Tsu, Japan
| |
Collapse
|
21
|
Koiwa J, Shiromizu T, Adachi Y, Ikejiri M, Nakatani K, Tanaka T, Nishimura Y. Generation of a Triple-Transgenic Zebrafish Line for Assessment of Developmental Neurotoxicity during Neuronal Differentiation. Pharmaceuticals (Basel) 2019; 12:E145. [PMID: 31554324 PMCID: PMC6958351 DOI: 10.3390/ph12040145] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 09/19/2019] [Accepted: 09/22/2019] [Indexed: 12/15/2022] Open
Abstract
: The developing brain is extremely sensitive to many chemicals. Exposure to neurotoxicants during development has been implicated in various neuropsychiatric and neurological disorders, including autism spectrum disorders and schizophrenia. Various screening methods have been used to assess the developmental neurotoxicity (DNT) of chemicals, with most assays focusing on cell viability, apoptosis, proliferation, migration, neuronal differentiation, and neuronal network formation. However, assessment of toxicity during progenitor cell differentiation into neurons, astrocytes, and oligodendrocytes often requires immunohistochemistry, which is a reliable but labor-intensive and time-consuming assay. Here, we report the development of a triple-transgenic zebrafish line that expresses distinct fluorescent proteins in neurons (Cerulean), astrocytes (mCherry), and oligodendrocytes (mCitrine), which can be used to detect DNT during neuronal differentiation. Using in vivo fluorescence microscopy, we could detect DNT by 6 of the 10 neurotoxicants tested after exposure to zebrafish from 12 h to 5 days' post-fertilization. Moreover, the chemicals could be clustered into three main DNT groups based on the fluorescence pattern: (i) inhibition of neuron and oligodendrocyte differentiation and stimulation of astrocyte differentiation; (ii) inhibition of neuron and oligodendrocyte differentiation; and (iii) inhibition of neuron and astrocyte differentiation, which suggests that reporter expression reflects the toxicodynamics of the chemicals. Thus, the triple-transgenic zebrafish line developed here may be a useful tool to assess DNT during neuronal differentiation.
Collapse
Affiliation(s)
- Junko Koiwa
- Department of Integrative Pharmacology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan.
| | - Takashi Shiromizu
- Department of Integrative Pharmacology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan.
| | - Yuka Adachi
- Department of Integrative Pharmacology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan.
| | - Makoto Ikejiri
- Department of Central Laboratory, Mie University Hospital, Tsu, Mie 514-8507, Japan.
| | - Kaname Nakatani
- Department of Genomic Medicine, Mie University Hospital, Tsu, Mie 514-8507, Japan.
| | - Toshio Tanaka
- Department of Systems Pharmacology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan.
| | - Yuhei Nishimura
- Department of Integrative Pharmacology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan.
| |
Collapse
|
22
|
Suzuki K, Wada H, Matsumoto T, Ikejiri M, Ohishi K, Yamashita Y, Imai H, Iba T, Katayama N. Usefulness of the APTT waveform for the diagnosis of DIC and prediction of the outcome or bleeding risk. Thromb J 2019; 17:12. [PMID: 31297038 PMCID: PMC6598339 DOI: 10.1186/s12959-019-0201-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 05/20/2019] [Indexed: 12/11/2022] Open
Abstract
Background The usefulness of the activated partial thromboplastin time (APTT) waveform has been reported in hemophilia, acquired hemophilia and monitoring for anticoagulants. Material and methods The APTT waveform was examined in patients suspected of having disseminated intravascular coagulation (DIC) to analyze its usefulness for the diagnosis of DIC or the prediction of the outcome or bleeding risk. Results DIC with fibrinogen < 2 g/L was frequently associated with infectious diseases (43.3%). The heights of the first derivative peak (1stDP) and second DP (2ndDP) were extremely low in DIC, especially DIC with hypofibrinogenemia, but high in infectious patients without DIC. The peak time and width of the 1stDP and 2ndDP were prolonged in patients with DIC. The heights of the 1stDP and 2ndDP were markedly low in patients with a poor outcome or those with hemoglobin < 8.0 g/dl. Discussion and conclusion As bleeding type DIC was observed in infectious DIC, DIC without hypofibrinogenemia might switch to DIC with hypofibrinogenemia by the progression of DIC. The height of the 1stDP and 2ndDP is useful for the diagnosis of DIC and prediction of the bleeding risk or outcome.
Collapse
Affiliation(s)
- Kei Suzuki
- 1Emergency Critical Care Center, Mie University Graduate School of Medicine, Tsu, Mie Japan
| | - Hideo Wada
- 2Departments of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, Mie 514-8507 Japan
| | - Takeshi Matsumoto
- 3Division of Blood Transfusion Medicine and Cell Therapy, Mie University Graduate School of Medicine, Tsu, Mie Japan
| | - Makoto Ikejiri
- 4Central laboratory, Mie University Graduate School of Medicine, Tsu, Mie Japan
| | - Kohshi Ohishi
- 3Division of Blood Transfusion Medicine and Cell Therapy, Mie University Graduate School of Medicine, Tsu, Mie Japan
| | - Yoshiki Yamashita
- 5Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Mie Japan
| | - Hiroshi Imai
- 1Emergency Critical Care Center, Mie University Graduate School of Medicine, Tsu, Mie Japan
| | - Toshiaki Iba
- 6Department of Emergency and Disaster Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Naoyuki Katayama
- 5Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Mie Japan
| |
Collapse
|
23
|
Ogura S, Tameda M, Sugimoto K, Ikejiri M, Usui M, Ito M, Takei Y. A substitution in the pre-S1 promoter region is associated with the viral regulation of hepatitis B virus. Virol J 2019; 16:59. [PMID: 31046787 PMCID: PMC6498540 DOI: 10.1186/s12985-019-1169-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 04/23/2019] [Indexed: 12/19/2022] Open
Abstract
Background Much evidence has demonstrated the influence of Hepatitis B virus (HBV) mutations on the clinical course of HBV infection. As large (L) protein plays a crucial role for viral entry, we hypothesized that mutations in the pre-S1 promoter region might affect the expression of L protein and subsequently change the biological characters of virus. Methods Patients infected with genotype C HBV were enrolled for analysis. HBV DNA sequences were inserted into a TA cloning vector and analyzed. To evaluate the effects of mutations in the pre-S1 promoter region, promoter activity and the expression of mRNA and L protein were analyzed using HepG2 cells. Results In total, 35 patients were enrolled and 13 patients (37.1%) had a single base substitution in the pre-S1 promoter region; the most frequent substitution was a G-to-A substitution at the 2765th base (G2765A) in the Sp1 region. The HBV viral load showed a negative correlation with the substitution ratio of the Sp1 region or G2765A (r = − 0.493 and − 0.473, respectively). Among those with a viral load ≤5.0 log IU/ml, patients with the G2765A substitution showed a significantly lower HBV viral load than those with the wild-type sequence. HepG2 cells transfected with the G2765A substitution vector showed reduced luciferase activity of the pre-S1 promoter, as well as reduced expression of pre-S1 mRNA and L protein. Furthermore, the G2765A substitution greatly reduced the L protein expression level of vector-produced virus particles. Conclusion G2765A substitution in the pre-S1 promoter reduced the expression of L protein and resulted in a low viral load and less severe disease in chronic HBV infections.
Collapse
Affiliation(s)
- Suguru Ogura
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Masahiko Tameda
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Kazushi Sugimoto
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan. .,Department of Central Laboratory, Mie University Hospital, Tsu, Japan.
| | - Makoto Ikejiri
- Department of Central Laboratory, Mie University Hospital, Tsu, Japan
| | - Masanobu Usui
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Masaaki Ito
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Yoshiyuki Takei
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| |
Collapse
|
24
|
Yamashita Y, Suzuki K, Mastumoto T, Ikejiri M, Ohishi K, Katayama N, Suzuki-Inoue K, Wada H. Elevated plasma levels of soluble C-type lectin-like receptor 2 (CLEC2) in patients with thrombotic microangiopathy. Thromb Res 2019; 178:54-58. [PMID: 30978634 DOI: 10.1016/j.thromres.2019.03.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 03/25/2019] [Accepted: 03/27/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND Thrombotic microangiopathy (TMA) is caused by activated platelets. The plasma C-type lectin-like receptor 2 (CLEC2) levels in 58 patients with TMA were examined and compared with those in healthy volunteers and other diseases. MATERIALS AND METHODS The plasma levels of soluble platelet surface glycoprotein VI (GPVI) and CLEC2 were measured in patients with TMA. RESULTS Plasma CLEC2 levels in patients with DIC and TMA were significantly higher (p < 0.001) than those in thrombocytopenic patients with other hematological diseases, but no significant differences in the plasma CLEC2 levels were observed among patients with thrombotic thrombocytopenic purpura, hemolytic uremic syndrome (HUS), atypical HUS and other TMA. The plasma CLEC2 levels after the remission were significantly lower than those before treatment (p < 0.001). The plasma CLEC2 levels were poorly correlated with the levels of soluble GPVI in the plasma of patients with TMA. The plasma CLEC2 levels were not significantly differ between survivor and non-survivor in TMA patients, but were significantly higher in non-survivor in overall population (p < 0.001). CONCLUSION The measurement of the plasma CLEC2 level is considered to be important for the diagnosis and evaluation of TMA.
Collapse
Affiliation(s)
- Yoshiki Yamashita
- Department of Hematology and Oncology, Mie University Hospital and Mie University Graduate School of Medicine, Tsu, Japan
| | - Kei Suzuki
- Department of Emergency Critical Care Center, Mie University Hospital and Mie University Graduate School of Medicine, Tsu, Japan
| | - Takeshi Mastumoto
- Department of Blood Transfusion and Cell Therapy, Mie University Hospital and Mie University Graduate School of Medicine, Tsu, Japan
| | - Makoto Ikejiri
- Department of Central Laboratory, Mie University Hospital and Mie University Graduate School of Medicine, Tsu, Japan
| | - Koji Ohishi
- Department of Blood Transfusion and Cell Therapy, Mie University Hospital and Mie University Graduate School of Medicine, Tsu, Japan
| | - Naoyuki Katayama
- Department of Hematology and Oncology, Mie University Hospital and Mie University Graduate School of Medicine, Tsu, Japan
| | - Katsue Suzuki-Inoue
- Department of Clinical and Laboratory Medicine, Yamanashi Medical University, Yamanashi, Japan
| | - Hideo Wada
- Deaprtment of Molecular and Laboratory Medicine, Mie University Hospital and Mie University Graduate School of Medicine, Tsu, Japan.
| |
Collapse
|
25
|
Wada H, Matsumoto T, Yamashita Y, Ohishi K, Ikejiri M, Katayama N. Routine measurements of factor VIII activity and inhibitor titer in the presence of emicizumab utilizing anti-idiotype monoclonal antibodies: comment. J Thromb Haemost 2019; 17:555-556. [PMID: 30672649 DOI: 10.1111/jth.14395] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Indexed: 11/30/2022]
Affiliation(s)
- Hideo Wada
- Departments of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - Takeshi Matsumoto
- Blood Transfusion Service and Cell Therapy, Mie University Graduate School of Medicine, Tsu, Japan
| | - Yoshiki Yamashita
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Kohshi Ohishi
- Blood Transfusion Service and Cell Therapy, Mie University Graduate School of Medicine, Tsu, Japan
| | - Makoto Ikejiri
- Central Laboratory, Mie University Graduate School of Medicine, Tsu, Japan
| | - Naoyuki Katayama
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Japan
| |
Collapse
|
26
|
Matsumoto T, Wada H, Ohishi K, Yamashita Y, Ikejiri M, Katayama N. Comments to: An Evaluation of Hemostatic Abnormalities in Patients With Hemophilia by APTT Waveform, Peak Heights of APTT Waveform Are Useful for Diagnosing Hemophilia or Inhibitor. Clin Appl Thromb Hemost 2019; 25:1076029618824419. [PMID: 30808219 PMCID: PMC6714993 DOI: 10.1177/1076029618824419] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- Takeshi Matsumoto
- 1 Blood Transfusion Service and Cell Therapy, Mie University Hospital, Tsu, Japan
| | - Hideo Wada
- 2 Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Mie, Japan
| | - Kohshi Ohishi
- 2 Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Mie, Japan
| | | | - Makoto Ikejiri
- 4 Central Laboratory, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | | |
Collapse
|
27
|
Tamura A, Wada H, Ikejiri M, Miyata T, Habe K, Tomimoto H. Major bleeding in a patient with warfarin-hypersensitive and factor IX propeptide variant, p.Ala37Thr, who was treated with a direct oral anti-Xa inhibitor. Ann Hematol 2019; 98:209-210. [DOI: 10.1007/s00277-018-3398-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Accepted: 06/13/2018] [Indexed: 10/28/2022]
|
28
|
Matsumoto T, Toyoda H, Amano K, Hirayama M, Ishikawa E, Fujimoto M, Ito M, Ohishi K, Katayama N, Yoshida Y, Matsumoto M, Kawamura N, Ikejiri M, Kawakami K, Miyata T, Wada H. Clinical Manifestation of Patients With Atypical Hemolytic Uremic Syndrome With the C3 p.I1157T Variation in the Kinki Region of Japan. Clin Appl Thromb Hemost 2018; 24:1301-1307. [PMID: 29695177 PMCID: PMC6714784 DOI: 10.1177/1076029618771750] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The gain-of-function variation p.I1157T in C3 was previously identified in 8 patients with atypical hemolytic uremic syndrome (aHUS) at Mie University Hospital. In the present study, we identified another 11 patients with aHUS with this variation, including 10 pediatric patients (onset age: 1-16 years). The variation seems to be geographically concentrated around Mie Prefecture in Japan. Fifteen of the 19 patients with aHUS experienced infection as probable triggering events. All 19 patients had renal dysfunction. Seven patients, including 2 from the previous study and 5 from the present study, were treated with eculizumab, with all showing a good response with hematological normalization. Among the 5 eculizumab-treated patients in the present study, 3 had an ambiguous diagnosis of aHUS due to low-grade hemolysis even with elevated levels of lactate dehydrogenase and bilirubin. In those cases, in-house targeted DNA sequencing identified the C3 p.I1157T variation carriers, which enabled the early initiation of treatment with eculizumab. The present study supports the early introduction of eculizumab in patients with aHUS, especially pediatric patients.
Collapse
Affiliation(s)
- Takeshi Matsumoto
- 1 Division of Blood Transfusion Medicine and Cell Therapy, Mie University Hospital, Tsu, Japan
| | - Hidemi Toyoda
- 2 Department of Pediatrics, Mie University Graduate School of Medicine, Tsu, Japan
| | - Keishirou Amano
- 2 Department of Pediatrics, Mie University Graduate School of Medicine, Tsu, Japan
| | - Masahiro Hirayama
- 2 Department of Pediatrics, Mie University Graduate School of Medicine, Tsu, Japan
| | - Eiji Ishikawa
- 3 Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Mika Fujimoto
- 3 Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Masaaki Ito
- 3 Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Kohshi Ohishi
- 1 Division of Blood Transfusion Medicine and Cell Therapy, Mie University Hospital, Tsu, Japan
| | - Naoyuki Katayama
- 4 Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Yoko Yoshida
- 5 Department of Blood Transfusion Medicine, Nara Medical University, Kashihara, Japan
| | - Masanori Matsumoto
- 5 Department of Blood Transfusion Medicine, Nara Medical University, Kashihara, Japan
| | | | - Makoto Ikejiri
- 7 Central Laboratory, Mie University Hospital, Tsu, Japan
| | - Keiki Kawakami
- 8 Department of Hematology, Suzuka General Hospital, Suzuka, Japan
| | - Toshiyuki Miyata
- 9 Departments of Molecular Pathogenesis and Cerebrovascular Medicine, National Central and Cardiovascular Center, Suita, Japan
| | - Hideo Wada
- 10 Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| |
Collapse
|
29
|
Katayama H, Matsumoto T, Wada H, Fujimoto N, Toyoda J, Abe Y, Ohishi K, Yamashita Y, Ikejiri M, Habe K, Katayama N. An Evaluation of Hemostatic Abnormalities in Patients With Hemophilia According to the Activated Partial Thromboplastin Time Waveform. Clin Appl Thromb Hemost 2018; 24:1170-1176. [PMID: 29439640 PMCID: PMC6714760 DOI: 10.1177/1076029618757344] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The usefulness of the waveform of activated partial thromboplastin time (APTT) in various diseases has been evaluated in recent years. The APTT waveform was examined in patients with hemophilia and patients positive for lupus anticoagulant (LA). The correlation with the FVIII activity was highest for the height of acceleration peak. The peak time of acceleration, velocity, and ½ fibrin formation, and the width of acceleration and velocity were significantly long and the height of acceleration was significantly low in patients with hemophilia. The height of velocity was significantly low in patients with hemophilia with inhibitor. There were no significant differences in the APTT waveform between patients with hemophilia and patients with LA, but the peak of acceleration and ½ fibrin formation were significantly longer and the height of acceleration and velocity were significantly lower in patients with hemophilia with inhibitor than in the patients with LA. Wave changes in the APTT were observed in all 22 patients positive for LA, while a biphasic waveform was observed in patients with hemophilia with FVIII activity <10.0%. The APTT waveform is useful for the analysis of hemostatic abnormalities in patients with hemophilia.
Collapse
Affiliation(s)
- Haruna Katayama
- 1 Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Mie, Japan.,2 Department of Ketsueki-Gyouko, Ogikubo hospital, Suginami, Tokyo, Japan
| | - Takeshi Matsumoto
- 3 Division of Blood Transfusion Medicine and Cell Therapy, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Hideo Wada
- 4 Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Naoki Fujimoto
- 4 Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Junki Toyoda
- 3 Division of Blood Transfusion Medicine and Cell Therapy, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Yasunori Abe
- 5 Central Laboratory, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Kohshi Ohishi
- 3 Division of Blood Transfusion Medicine and Cell Therapy, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Yoshiki Yamashita
- 1 Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Makoto Ikejiri
- 5 Central Laboratory, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Koji Habe
- 6 Department of Dermatology, Mie University Graduate School of medicine, Tsu, Mie, Japan
| | - Naoyuki Katayama
- 1 Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| |
Collapse
|
30
|
Ikejiri M, Wada H, Tone S, Wakabayashi H, Hasegawa M, Matsumoto T, Fujimoto N, Yamada N, Ito M, Nakatani K, Sudo A. Comparison of three different anti-Xa assays in major orthopedic surgery patients treated with direct oral anticoagulant. Thromb J 2017; 15:27. [PMID: 29046616 PMCID: PMC5637253 DOI: 10.1186/s12959-017-0150-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 09/14/2017] [Indexed: 12/13/2022] Open
Abstract
Background Measurement of edoxaban plasma concentration has been gathering attention in major orthopedic surgery patients receiving edoxaban for the prevention of venous thromboembolism (VTE). Methods The anti-Xa activity was measured one hour after edoxaban intake using 3 different assays in 200 patients after major orthopedic surgery. Results The anti-Xa activities on Day 8 were significantly higher than those on Day 4 and those on Day 4 were significantly higher than those on Day 1. The anti-Xa activities in two assays closely correlated with each other, but the other anti-Xa assay did not correlated with other two assays. The anti-Xa activities as detected in the three Xa assays were significantly higher in the patients without deep vein thrombosis (DVT) than in those with DVT on Day 4. Additionally, there were no significant differences in the anti-Xa activities of assays A, B and C between patients with and without massive bleeding (MB) on Days 1, 4, 8 and 15. Conclusion The results of this study suggest that anti-Xa level could be predictive of the risk of VTE, but not of the risk of massive bleeding.
Collapse
Affiliation(s)
- Makoto Ikejiri
- Department of Central Laboratory, Mie University Graduate School of Medicine, Tsu, Japan
| | - Hideo Wada
- Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, Japan.,Department of Laboratory Medicine, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu -City, Mie-ken 514-8507 Japan
| | - Shine Tone
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Hiroki Wakabayashi
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Masahiro Hasegawa
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Takeshi Matsumoto
- Department of Blood Transfusion Service, Mie University Graduate School of Medicine, Tsu, Japan
| | - Naoki Fujimoto
- Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - Norikazu Yamada
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Masaaki Ito
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Kaname Nakatani
- Department of Central Laboratory, Mie University Graduate School of Medicine, Tsu, Japan
| | - Akihiro Sudo
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| |
Collapse
|
31
|
Matsumoto T, Wada H, Fujimoto N, Toyoda J, Abe Y, Ohishi K, Yamashita Y, Ikejiri M, Hasegawa K, Suzuki K, Imai H, Nakatani K, Katayama N. An Evaluation of the Activated Partial Thromboplastin Time Waveform. Clin Appl Thromb Hemost 2017; 24:764-770. [PMID: 28884611 DOI: 10.1177/1076029617724230] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The activated partial thromboplastin time (APTT) waveform includes several parameters that are related to various underlying diseases. The APTT waveform was examined in various diseases. Regarding the pattern of APTT waveform, a biphasic pattern of the first or second derivative curve (DC) was observed in patients with hemophilia and patients positive for antiphospholipid (aPL) antibodies or coagulation factor VIII (FVIII) inhibitors. The time of the first and second DC and fibrin formation at 1/2 height were prolonged in patients with hemophilia, patients with inhibitors, patients positive for aPL, patients treated with anti-Xa agents, and patients with disseminated intravascular coagulation (DIC). These values all tended to decrease in pregnant women (at 28-36 weeks' gestation). The height of the second derivative peak 1 was significantly lower in patients with hemophilia, patients with FVIII inhibitors, patients positive for aPL, patients treated with anti-Xa agents, and patients with DIC; these values tended to be significantly higher in pregnant women. The height of the first DC was significantly lower in patients who were positive for FVIII inhibitors and was significantly higher in patients treated with anti-Xa agents and pregnant women. The height of the first and second DC was useful for the analysis of hemophilia, FVIII inhibitor, and aPL.
Collapse
Affiliation(s)
- Takeshi Matsumoto
- 1 Blood Transfusion Service, Mie University Graduate School of Medicine, Mie, Japan
| | - Hideo Wada
- 2 Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Mie, Japan
| | - Naoki Fujimoto
- 2 Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Mie, Japan
| | - Junki Toyoda
- 2 Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Mie, Japan
| | - Yasunori Abe
- 2 Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Mie, Japan
| | - Kohshi Ohishi
- 1 Blood Transfusion Service, Mie University Graduate School of Medicine, Mie, Japan
| | - Yoshiki Yamashita
- 3 Department of Hematology and Oncology, Mie University Graduate School of Medicine, Mie, Japan
| | - Makoto Ikejiri
- 4 Central laboratory, Mie University Graduate School of Medicine, Mie, Japan
| | - Kei Hasegawa
- 4 Central laboratory, Mie University Graduate School of Medicine, Mie, Japan
| | - Kei Suzuki
- 5 Emergency Critical Care Center, Mie University Graduate School of Medicine, Mie, Japan
| | - Hiroshi Imai
- 5 Emergency Critical Care Center, Mie University Graduate School of Medicine, Mie, Japan
| | - Kaname Nakatani
- 4 Central laboratory, Mie University Graduate School of Medicine, Mie, Japan
| | - Naoyuki Katayama
- 3 Department of Hematology and Oncology, Mie University Graduate School of Medicine, Mie, Japan
| |
Collapse
|
32
|
Hasegawa M, Wada H, Tone S, Yamaguchi T, Wakabayashi H, Ikejiri M, Watanabe M, Fujimoto N, Matsumoto T, Ohishi K, Yamashita Y, Katayama N, Sudo A. Monitoring of hemostatic abnormalities in major orthopedic surgery patients treated with edoxaban by APTT waveform. Int J Lab Hematol 2017; 40:49-55. [PMID: 28869359 DOI: 10.1111/ijlh.12727] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 07/11/2017] [Indexed: 11/30/2022]
Abstract
INTRODUCTION An analysis of the activated partial thromboplastin time (APTT) in major orthopedic surgery patients receiving edoxaban for the prevention of venous thromboembolism (VTE) was carried out. METHODS The APTT waveform was analyzed in the above patients to monitor edoxaban administration. RESULTS Of these 99 patients, 12 exhibited deep vein thrombosis, and 25 had massive bleeding. An increased biphasic pattern of the APTT waveform was observed after the administration of edoxaban, but there were no significant differences between the patients with and without complications. The peak times of acceleration, velocity, and 1/2 fibrin formation were significantly prolonged after the administration of edoxaban, especially in patients with massive bleeding, and were moderately correlated with the anti-Xa activity. While the heights of velocity and acceleration peak 2 were lower in patients receiving warfarin treatment than in those receiving edoxaban, the widths of these parameters were significantly longer. The height of 1/2 fibrin formation and the width of acceleration peaks 1 and 2 and the velocity were significantly increased after the administration of edoxaban. CONCLUSION The peak time of the APTT waveform was significantly prolonged after the administration of edoxaban. The analysis of the APTT waveform may therefore be useful for the prediction of the risk of massive bleeding.
Collapse
Affiliation(s)
- M Hasegawa
- Departments of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - H Wada
- Departments of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - S Tone
- Departments of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - T Yamaguchi
- Departments of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - H Wakabayashi
- Departments of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - M Ikejiri
- Departments of Central Laboratory, Mie University Graduate School of Medicine, Tsu, Japan
| | - M Watanabe
- Departments of Central Laboratory, Mie University Graduate School of Medicine, Tsu, Japan
| | - N Fujimoto
- Departments of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - T Matsumoto
- Departments of Blood Transfusion Service, Mie University Graduate School of Medicine, Tsu, Japan
| | - K Ohishi
- Departments of Blood Transfusion Service, Mie University Graduate School of Medicine, Tsu, Japan
| | - Y Yamashita
- Departments of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Japan
| | - N Katayama
- Departments of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Japan
| | - A Sudo
- Departments of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| |
Collapse
|
33
|
Ikejiri M. [JAK2, CALR]. Rinsho Byori 2017; 65:59-66. [PMID: 30695513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Representative diseases of BCR/ABL-negative myeloproliferative neoplasms (MPN) are polycythemia vera (PV), essential thrombocytosis (ET), and primary myelofibrosis (PMF). It was reported in 2005 that there is a common genetic mutation in Exon 14 of the JAK2 gene in MPN cases. The gene mutation is a point mutation at which the 617th amino acid of the JAK2 protein is substituted from valine to phenylalanine and is referred to as the JAK2 V617F mutation. Subsequently, JAK2 Exon 12 mutation, MPL gene mutation, and CALR gene mutation were detected in 2013, and it was revealed that in almost all cases of BCR/ABL- negative MPN, any gene mutation could be involved as a driver gene mutation. As a result, in the WHO classification 2016, gene mutation analyses of JAK2, MPL, and CALR were incorporated into the diagnostic criteria. Analysis of gene mutation is indispensable for the diagnosis of MPN. Also, its importance as an inspection item is increasing. [Review].
Collapse
|
34
|
Kano G, Tsujii H, Takeuchi K, Nakatani K, Ikejiri M, Ogawa S, Kubo H, Nagao M, Fujisawa T. Whole-exome sequencing identification of novel DNAH5 mutations in a young patient with primary ciliary dyskinesia. Mol Med Rep 2016; 14:5077-5083. [PMID: 27779714 PMCID: PMC5355724 DOI: 10.3892/mmr.2016.5871] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Accepted: 09/23/2016] [Indexed: 01/12/2023] Open
Abstract
Primary ciliary dyskinesia (PCD) is a rare genetic disorder caused by structural and/or functional impairment of cilia throughout the whole body. Early diagnosis of PCD is important for the prevention of long-term sequelae, however early diagnosis is a challenge due to the phenotypic heterogeneity of PCD. In the current study, the patient with PCD was diagnosed at nine years old following several efforts to control intractable airway symptoms. The patient experienced a chronic productive cough beginning in early childhood and had multiple episodes of pneumonia and otitis media with effusion and sinusitis. No situs inversus or other heterotaxias were reported. Serial chest X-rays exhibited persistent atelectasis and bronchiectasis in the right middle lobe. When the patient was nine years old, electron microscopy of his cilia and genetic analysis were conducted. Electron microscopy of a biopsy specimen from the nasal mucosa indicated loss of the outer dynein arms. Whole-exome analysis of the genome demonstrated the presence of compound heterozygous mutations in DNAH5: NM_001369.2:c.5983C>T, p.Arg1995X in exon 36 and NM_001369.2:c.9101delG, p.Gly3034ValfsX22 in exon 54; neither of which have been previously reported in the literature in a Japanese patient. Notably, this case is, to the best of our knowledge, the first reported case of PCD caused by the DNAH5 mutation in a Japanese patient.
Collapse
Affiliation(s)
- Gen Kano
- Department of Pediatrics, Kyoto‑Yamashiro General Medical Center, Kizugawashi, Kyoto 619‑0214, Japan
| | - Hisashi Tsujii
- Department of Pediatrics, Kyoto‑Yamashiro General Medical Center, Kizugawashi, Kyoto 619‑0214, Japan
| | - Kazuhiko Takeuchi
- Department of Otorhinolaryngology, Head & Neck Surgery, Mie University Graduate School of Medicine, Tsu, Mie 514‑8507, Japan
| | - Kaname Nakatani
- Division of Personalized Medicine, Mie University Graduate School of Medicine, Tsu, Mie 514‑8507, Japan
| | - Makoto Ikejiri
- Central Clinical Laboratories, Mie University Graduate School of Medicine, Tsu, Mie 514‑8507, Japan
| | - Satoru Ogawa
- Electron Microscopy Research Center, Mie University Graduate School of Medicine, Tsu, Mie 514‑8507, Japan
| | - Hisami Kubo
- School of Medicine, Mie University, Tsu, Mie 514‑8507, Japan
| | - Mizuho Nagao
- Department of Pediatrics, Mie National Hospital, Tsu, Mie 514‑0125, Japan
| | - Takao Fujisawa
- Department of Pediatrics, Mie National Hospital, Tsu, Mie 514‑0125, Japan
| |
Collapse
|
35
|
Ikejiri M, Wada H, Kamimoto Y, Nakatani K, Ikeda T. Protection From Pregnancy Loss in Women With Hereditary Thrombophilia When Associated With Fibrinogen Polymorphism Thr331Ala. Clin Appl Thromb Hemost 2016; 23:494-495. [DOI: 10.1177/1076029616645400] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
| | - Hideo Wada
- Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - Yuki Kamimoto
- Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Kaname Nakatani
- Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - Tomoaki Ikeda
- Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Tsu, Japan
| |
Collapse
|
36
|
Ikejiri M, Wada H, Yamaguchi T, Miyazaki S, Hasegawa M, Wakabayashi H, Asanuma K, Sakaguchi A, Matsumoto T, Ohishi K, Fujimoto N, Yamada N, Ito M, Katayama N, Sudo A. Comparison of three different anti-Xa assays in major orthopedic surgery patients treated with fondaparinux. Int J Hematol 2016; 103:554-9. [PMID: 26922193 DOI: 10.1007/s12185-016-1963-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 02/09/2016] [Accepted: 02/12/2016] [Indexed: 10/22/2022]
Abstract
Anti-Xa assays are useful for monitoring the effects of selective anti-Xa drugs, such as fondaparinux, in the prophylaxis of deep vein thrombosis. In the present study, anti-Xa activity was measured using three different assays, Testzym(®) Heparin S, STA(®)-Liquid Anti-Xa and HemosIL(®) Liquid Heparin. Anti-Xa activity in each assay gradually increased from day one after administration to day eight, and still remained on day 15. Although there were significant differences in anti-Xa activity among the three assays, the activity showed significant correlation across assays. There were no significant differences in the anti-Xa activity between patients with and without DVT or between patients with and without massive bleeding on day one before and after administration, day four, day eight and day 15. Anti-Xa activity in each assay was weakly correlated with antithrombin (AT) activity. The AT activity in patients were significantly higher on days four, eight and 15 compared with day one before and after administration, suggesting that AT activity increases following the administration of fondaparinux. The three anti-Xa assay kits tested are useful for monitoring fondaparinux treatment in orthopedic surgery patients.
Collapse
Affiliation(s)
- Makoto Ikejiri
- Department of Central Laboratory, Mie University Hospital, Tsu, Japan
| | - Hideo Wada
- Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie-ken, 514-8507, Japan.
| | - Toshio Yamaguchi
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Shinichi Miyazaki
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Masahiro Hasegawa
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Hiroki Wakabayashi
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Kunihiro Asanuma
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Akane Sakaguchi
- Department of Central Laboratory, Mie University Hospital, Tsu, Japan
| | - Takeshi Matsumoto
- Department of Blood Transfusion Service, Mie University Hospital, Tsu, Japan
| | - Kohshi Ohishi
- Department of Blood Transfusion Service, Mie University Hospital, Tsu, Japan
| | - Naoki Fujimoto
- Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie-ken, 514-8507, Japan
| | - Norikazu Yamada
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Masaaki Ito
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Naoyuki Katayama
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Akihiro Sudo
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| |
Collapse
|
37
|
Habe K, Wada H, Matsumoto T, Ohishi K, Ikejiri M, Tsuda K, Kondo M, Kamimoto Y, Ikeda T, Katayama N, Mizutani H. Plasma ADAMTS13, von Willebrand Factor (VWF), and VWF Propeptide Profiles in Patients With Connective Tissue Diseases and Antiphospholipid Syndrome. Clin Appl Thromb Hemost 2016; 23:622-630. [PMID: 26759371 DOI: 10.1177/1076029615625832] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Thrombotic thrombocytopenic purpura (TTP) frequently develops in patients with connective tissue diseases (CTDs). ADAMTS13 and von Willebrand factor (VWF) are closely related to the onset of TTP. We investigated the roles of ADAMTS13 and VWF in thrombotic events of patients with CTD. ADAMTS13 activity and VWF and VWF propeptide (VWFpp) levels in CTD, primary antiphospholipid antibody syndrome (pAPS), and controls were measured to examine their relationship with thrombosis. ADAMTS13 activity levels were significantly low in the patients with CTD but not in the patients with pAPS. No significant difference in the ADAMTS13 activity levels among the various CTD subgroups was found. The levels of VWF and VWFpp were significantly elevated in the patients with pAPS and CTD compared with that of control groups. Eleven patients with CTD developed TTP, and their ADAMTS13 activity levels were significantly lower than patients having CTD without TTP. However, the ADAMTS13 activity levels showed no difference between the patients having CTD with and without thrombotic events. The VWF antigen levels were significantly high in the patients having CTD with TTP. There were no significant differences in the VWF levels of the patients having CTD with TTP and thrombosis. The VWFpp levels were significantly high in the patients having CTD with TTP and thrombosis. The VWF and VWFpp levels were significantly high in the patients with pAPS. Decreased ADAMTS13 activity and elevated VWF and VWFpp levels were observed in patients with CTD. These abnormalities in patients with CTD may represent the increased risk of thrombosis in CTD.
Collapse
Affiliation(s)
- Koji Habe
- 1 Department of Dermatology, Mie University Graduate School of Medicine, Mie, Tsu, Japan
| | - Hideo Wada
- 2 Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - Takeshi Matsumoto
- 3 Blood Transfusion Service, Mie University Hospital, Mie, Tsu, Japan
| | - Kohshi Ohishi
- 3 Blood Transfusion Service, Mie University Hospital, Mie, Tsu, Japan
| | - Makoto Ikejiri
- 4 Central laboratory, Mie University Hospital, Tsu, Japan
| | - Kenshiro Tsuda
- 1 Department of Dermatology, Mie University Graduate School of Medicine, Mie, Tsu, Japan
| | - Makoto Kondo
- 1 Department of Dermatology, Mie University Graduate School of Medicine, Mie, Tsu, Japan
| | - Yuki Kamimoto
- 5 Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Mie, Tsu, Japan
| | - Tomoaki Ikeda
- 5 Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Mie, Tsu, Japan
| | - Naoyuki Katayama
- 6 Department of Hematology and Oncology, Mie University Graduate School of Medicine, Mie, Tsu, Japan
| | - Hitoshi Mizutani
- 1 Department of Dermatology, Mie University Graduate School of Medicine, Mie, Tsu, Japan
| |
Collapse
|
38
|
Habe K, Wada H, Matsumoto T, Ohishi K, Ikejiri M, Matsubara K, Morioka T, Kamimoto Y, Ikeda T, Katayama N, Mizutani H. Presence of Antiphospholipid Antibodies as a Risk Factor for Thrombotic Events in Patients with Connective Tissue Diseases and Idiopathic Thrombocytopenic Purpura. Intern Med 2016; 55:589-95. [PMID: 26984073 DOI: 10.2169/internalmedicine.55.5536] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE Antiphospholipid syndrome (APS) is a well-known complication of habitual abortion and/or thrombosis and is frequently associated with autoimmune diseases. METHODS We retrospectively investigated the relationships between the presence of antiphospholipid antibodies (aPLs) and the incidence of thrombotic events (THEs) in 147 patients with various connective tissue diseases (CTD) suspected of having APS and 86 patients with idiopathic thrombocytopenic purpura (ITP). THEs were observed in 41 patients, including 14 cases of venous thrombosis, 21 cases of arterial thrombosis and eight cases of complications of pregnancy. RESULTS The prevalence of THE was significantly high in the systemic lupus erythematosus (SLE) patients compared with the other CTD patients and ITP patients. The frequency of lupus anticoagulant (LA), anticardiolipin antibodies (aCL)-β2-glycoprotein (GPI) complex IgG and aPL was significantly high in the SLE patients compared with the ITP patients. Subsequently, the rate of development of THE was significantly high in the patients with aPLs. In particular, the incidence of THE was significantly high in the SLE or ITP patients with LA, aCL-β2GPI IgG or aPL. The optimal cut-off values for LA, aCL IgG and aCL-β2GPI complex IgG for the risk of THEs were higher in the SLE patients in comparison to the values obtained when using the kit provided by the manufacturer. CONCLUSION Although aPLs is frequently associated with SLE and is a causative factor for thrombosis, the optimal cut-off value for aPL for predicting the occurrence of THEs varies among different underlying diseases.
Collapse
MESH Headings
- Adult
- Antibodies, Antiphospholipid/blood
- Antibodies, Antiphospholipid/immunology
- Antiphospholipid Syndrome/blood
- Antiphospholipid Syndrome/complications
- Antiphospholipid Syndrome/immunology
- Antiphospholipid Syndrome/physiopathology
- Biomarkers/blood
- Female
- Humans
- Male
- Predictive Value of Tests
- Pregnancy
- Pregnancy Complications, Hematologic/blood
- Pregnancy Complications, Hematologic/etiology
- Pregnancy Complications, Hematologic/physiopathology
- Prevalence
- Purpura, Thrombocytopenic, Idiopathic/blood
- Purpura, Thrombocytopenic, Idiopathic/complications
- Purpura, Thrombocytopenic, Idiopathic/immunology
- Purpura, Thrombocytopenic, Idiopathic/physiopathology
- Retrospective Studies
- Risk Factors
- Venous Thrombosis/blood
- Venous Thrombosis/etiology
- Venous Thrombosis/physiopathology
- beta 2-Glycoprotein I/blood
Collapse
Affiliation(s)
- Koji Habe
- Department of Dermatology, Mie University Graduate School of Medicine, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Kamimoto Y, Wada H, Ikejiri M, Nakatani K, Sugiyama T, Osato K, Murabayashi N, Yamada N, Matsumoto T, Ohishi K, Ishikawa H, Tomimoto H, Ito M, Ikeda T. High frequency of decreased antithrombin level in pregnant women with thrombosis. Int J Hematol 2015; 102:253-8. [DOI: 10.1007/s12185-015-1822-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 06/10/2015] [Accepted: 06/18/2015] [Indexed: 10/23/2022]
|
40
|
Kamimoto Y, Wada H, Ikejiri M, Nakatani K, Sugiyama T, Osato K, Murabayashi N, Habe K, Mizutani H, Matsumoto T, Ohishi K, Ikeda T. Hypofibrinogenemia and the α-Fibrinogen Thr312Ala Polymorphism may be Risk Factors for Early Pregnancy Loss. Clin Appl Thromb Hemost 2015; 23:52-57. [PMID: 26139837 DOI: 10.1177/1076029615594003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We analyzed a cohort of 36 females with pregnancy loss. In addition to 11 patients with antiphospholipid antibody syndrome and 2 patients with congenital antithrombin (AT) or protein C deficiency, we identified 5 patients with low fibrinogen levels (median 110 mg/dL) prior to 10 weeks of gestation. Four of these 5 patients underwent a fibrinogen gene analysis, and all 4 were found to be heterozygotes for the α-fibrinogen (FGA) Thr321Ala polymorphism. One female without hypofibrinogenemia with a history of 8 pregnancy losses was found to be homozygous for the same polymorphism, and she also showed hypercoagulability without thrombosis. In conclusion, there was a relatively high frequency of pregnancy loss in the setting of hypofibrinogenemia and/or the FGA Thr312Ala polymorphism, and this may be an important risk factor for pregnancy loss and a hypercoagulable state in later pregnancy.
Collapse
Affiliation(s)
- Yuki Kamimoto
- Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Mie, Tsu, Japan
| | - Hideo Wada
- Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | | | - Kaname Nakatani
- Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Takashi Sugiyama
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Aoba-ku, Sendai City, Miyagi, Japan
| | - Kazuhiro Osato
- Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Mie, Tsu, Japan
| | - Nao Murabayashi
- Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Mie, Tsu, Japan
| | - Koji Habe
- Department of Dermatology, Mie University Graduate School of Medicine, Mie, Tsu, Japan
| | - Hitoshi Mizutani
- Department of Dermatology, Mie University Graduate School of Medicine, Mie, Tsu, Japan
| | - Takeshi Matsumoto
- Department of Blood Transfusion, Mie University Graduate School of Medicine, Mie, Tsu, Japan
| | - Kohshi Ohishi
- Department of Blood Transfusion, Mie University Graduate School of Medicine, Mie, Tsu, Japan
| | - Tomoaki Ikeda
- Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Mie, Tsu, Japan
| |
Collapse
|
41
|
Matsumoto T, Fan X, Ishikawa E, Ito M, Amano K, Toyoda H, Komada Y, Ohishi K, Katayama N, Yoshida Y, Matsumoto M, Fujimura Y, Ikejiri M, Wada H, Miyata T. Analysis of patients with atypical hemolytic uremic syndrome treated at the Mie University Hospital: concentration of C3 p.I1157T mutation. Int J Hematol 2014; 100:437-42. [PMID: 25135378 DOI: 10.1007/s12185-014-1655-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2014] [Revised: 08/07/2014] [Accepted: 08/07/2014] [Indexed: 12/30/2022]
Abstract
Atypical hemolytic uremic syndrome (aHUS) is caused by abnormalities of the complement system and has a significantly poor prognosis. The clinical phenotypes of 12 patients in nine families with aHUS with familial or recurrent onset and ADAMTS13 activity of ≥20 % treated at the Mie University Hospital were examined. In seven of the patients, the first episode of aHUS occurred during childhood and ten patients experienced a relapse. All patients had renal dysfunction and three had been treated with hemodialysis. Seven patients experienced probable triggering events including common cold, influenza, bacterial infection and/or vaccination for influenza. All patients had entered remission, and renal function was improved in 11 patients. DNA sequencing of six candidate genes, identified a C3 p.I1157T missense mutation in all eight patients in six families examined and this mutation was causative for aHUS. A causative mutation THBD p.D486Y was also identified in an aHUS patient. Four missense mutations, CFH p.V837I, p.Y1058H, p.V1060L and THBD p.R403K may predispose to aHUS manifestation; the remaining seven missense mutations were likely neutral. In conclusion, the clinical phenotypes of aHUS are various, and there are often trigger factors. The C3 p.I1157T mutation was identified as the causative mutation for aHUS in all patients examined, and may be geographically concentrated in or around the Mie prefecture in central Japan.
Collapse
|
42
|
Murai T, Nakako T, Ikejiri M, Miyauti M, Nakazawa S, Ikeda K. P138: Auditory gating function in common marmosets. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50278-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
43
|
Shindo A, Wada H, Ishikawa H, Ito A, Asahi M, Ii Y, Ikejiri M, Tomimoto H. Clinical features and underlying causes of cerebral venous thrombosis in Japanese patients. Int J Hematol 2014; 99:437-40. [PMID: 24599415 DOI: 10.1007/s12185-014-1550-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Revised: 02/12/2014] [Accepted: 02/13/2014] [Indexed: 01/08/2023]
Abstract
The clinical symptoms, causative factors, and prognosis in Japanese patients with cerebral venous thrombosis have not been adequately characterized. The present study describes these features in patients in Japan. Twenty-two patients with cerebral venous thrombosis were retrospectively identified. Diagnosis was confirmed by either digital subtraction angiography, magnetic resonance venography, or contrast-enhanced computed tomography. Demographic data and clinical and radiological features were recorded and analyzed for each patient. Prognosis was evaluated by the modified Rankin scale (mRS) at the time of hospital discharge. The most frequent symptom of cerebral venous thrombosis was headache (59.1 %). Causative factors included congenital thrombophilia (31.8 %), acquired thrombophilia (27.3 %), and iron-deficiency anemia (13.6 %). Of seven patients with congenital thrombophilia, four had mutations in the protein S gene, two had mutations in the protein C gene, and one had mutations in the antithrombin gene. All patients were alive at discharge from hospital. Nineteen of the 22 patients (86.4 %) recovered completely or exhibited only mild residual symptoms (mRS 0-2). However, three patients (13.6 %) had a poor prognosis (mRS 3-5). Cerebral venous thrombosis in Japanese patients is frequently associated with congenital thrombophilia and protein S gene mutation.
Collapse
Affiliation(s)
- Akihiro Shindo
- Department of Neurology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan,
| | | | | | | | | | | | | | | |
Collapse
|
44
|
Fukushima N, Itamura H, Wada H, Ikejiri M, Igarashi Y, Masaki H, Sano M, Komiyama Y, Ichinohe T, Kimura S. A novel frameshift mutation in exon 4 causing a deficiency of high-molecular-weight kininogen in a patient with splenic infarction. Intern Med 2014; 53:253-7. [PMID: 24492696 DOI: 10.2169/internalmedicine.53.0737] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
High-molecular-weight kininogen (HMWK) deficiency is a very rare hereditary disorder. We herein report a case of HMWK deficiency with splenic infarction. The HMWK activity of the proband was markedly decreased (0.9%). Direct sequencing of his HMWK gene showed a homozygous "TC" insertion at c523-524 in exon 4. This insertion led to an amino acid substitution, Ser175Ser, resulting in a frameshift mutation and a premature stop codon in amino acid 183. Furthermore, the HMWK activity was also reduced in the patient's three children, who exhibited the heterozygous "TC" insertion at c523-524 in exon 4. This is the first report of this gene alteration in a patient with HMWK deficiency.
Collapse
Affiliation(s)
- Noriyasu Fukushima
- Department of Medical Science Technology, School of Health Sciences at Fukuoka, International University of Health and Welfare, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Tameda M, Shiraki K, Sugimoto K, Ogura S, Inagaki Y, Yamamoto N, Ikejiri M, Takei Y, Ito M, Nobori T. Des-γ-carboxy prothrombin ratio measured by P-11 and P-16 antibodies is a novel biomarker for hepatocellular carcinoma. Cancer Sci 2013; 104:725-31. [PMID: 23480217 DOI: 10.1111/cas.12149] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Revised: 03/06/2013] [Accepted: 03/06/2013] [Indexed: 12/20/2022] Open
Abstract
Serum tumor markers, including α-fetoprotein (AFP) and des-γ-carboxy prothrombin (DCP), are currently used in the diagnosis of hepatocellular carcinoma (HCC). There is, however, an aberrant increase in serum DCP in patients with obstructive jaundice, vitamin K deficiency or who are taking warfarin, resulting from a problem with the current methodology for measurement of this marker. This study aimed to elucidate the utility of a new biomarker, NX-PVKA, for early diagnosis of HCC. A total of 96 patients were included in the HCC group. The control group included 138 liver cirrhosis (LC) patients without HCC. Serum concentrations of conventional DCP, AFP, AFP-L3 and NX-PVKA were measured. The NX-PVKA ratio was calculated by dividing DCP by NX-PVKA. In patients not taking warfarin, the area under the curve values of DCP, NX-PVKA ratio, AFP and AFP-L3 were 0.715, 0.690, 0.737 and 0.654, respectively, confirming the clinical utility of these markers in detecting HCC. In cases with DCP > 35 mAU/mL in particular, a significant increase in the NX-PVKA ratio was observed in patients with HCC. In those cases, the cut-off value for the NX-PVKA ratio that was optimized by the receiver operating characteristic (ROC) curve was 1.15. In addition, the sensitivity and specificity for diagnosing HCC were 69.2% and 75.9%, respectively. Patients with HCC had higher NX-PVKA ratios compared to patients with LC taking warfarin (P = 0.063). These results suggest that, when used in combination with DCP, the NX-PVKA ratio is a promising novel marker for the detection of HCC.
Collapse
Affiliation(s)
- Masahiko Tameda
- Department of Molecular and Laboratory Medicine, Mie University School of Medicine, Tsu, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Shindo A, Ikejiri M, Ii Y, Nakatani K, Wada H, Nobori T, Tomimoto H. A novel protein S gene mutation combined with protein S Tokushima mutation in a patient with superior sagittal sinus thrombosis. J Neurol 2011; 259:178-9. [PMID: 21647728 DOI: 10.1007/s00415-011-6122-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2011] [Revised: 05/21/2011] [Accepted: 05/24/2011] [Indexed: 11/24/2022]
|
47
|
Ikejiri M, Wada H, Sakamoto Y, Ito N, Nishioka J, Nakatani K, Tsuji A, Yamada N, Nakamura M, Ito M, Nobori T. The association of protein S Tokushima-K196E with a risk of deep vein thrombosis. Int J Hematol 2010; 92:302-5. [PMID: 20811787 DOI: 10.1007/s12185-010-0671-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2010] [Revised: 08/09/2010] [Accepted: 08/17/2010] [Indexed: 12/01/2022]
Abstract
Deep vein thrombosis (DVT) is a multifactorial disease caused by acquired risk factors such as a bed rest, surgery and malignancies. Although the factor V Leiden and the prothrombin-20210G>A mutation do not exist in Japanese populations, a mutation in protein S (PS) Tokushima (K196E) has been attracting attention in Japan. In this study, the genetic contribution of PS Tokushima (K196E) was evaluated in 60 Japanese patients with thrombosis in comparison to 234 healthy volunteers and 88 patients without thrombosis. Genes associated with the response to warfarin, cytochrome P450 2C9 (CYP2C9), vitamin K epoxide reductase complex subunit 1 (VKORC1), and γ-glutamyl carboxylase (GGCX) were also investigated simultaneously. PS Tokushima (K196E) was detected in 6 patients with thrombosis, in 3 without thrombosis and in 3 healthy volunteers, indicating that there is a high frequency of the PS Tokushima (K196E). There were no significant differences of CYP2C9, VKORC1 or GGCX between the patients with and without DVT. Therefore, PS Tokushima (K196E) is an important genetic risk factor for DVT in the Japanese population.
Collapse
Affiliation(s)
- Makoto Ikejiri
- Central Laboratory, Mie University Graduate School of Medicine, Tsu, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Ikejiri M, Tsuji A, Wada H, Sakamoto Y, Nishioka J, Ota S, Yamada N, Matsumoto T, Nakatani K, Nobori T, Itoh M. Analysis three abnormal Protein S genes in a patient with pulmonary embolism. Thromb Res 2010; 125:529-32. [DOI: 10.1016/j.thromres.2009.12.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2009] [Revised: 12/01/2009] [Accepted: 12/17/2009] [Indexed: 10/19/2022]
|
49
|
Nakamura A, Wada H, Ikejiri M, Hatada T, Sakurai H, Matsushima Y, Nishioka J, Maruyama K, Isaji S, Takeda T, Nobori T. Efficacy of procalcitonin in the early diagnosis of bacterial infections in a critical care unit. Shock 2009; 31:586-91. [PMID: 19060784 DOI: 10.1097/shk.0b013e31819716fa] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Procalcitonin (PCT) is a marker of severe bacterial infections and organ failure due to sepsis. The purpose of the present study was to identify the appropriate cutoff level of PCT based on the findings of a blood culture and polymerase chain reaction (PCR). The PCT levels were measured in 116 patients in an intensive care unit who were suspected of having bacteremia, to examine its relationship with a blood culture or PCR. The PCT levels were significantly high in patients with bacteremia, but they were also moderately high in some patients who were positive for fungus DNA. The area under the curve was significantly higher for PCT than for C-reactive protein. The appropriate cutoff values of PCT for bacteremia were 0.38 microg/L for the high negative predictive value and 0.83 microg/L for the high positive predictive value. Procalcitonin was slightly related to mortality, and the combination of a blood culture and PCR was thus found to increase the sensitivity for mortality. These findings suggest that PCT is useful for the diagnosis of bacteremia and that the diagnostic value of PCT in combination a with blood culture and PCR for bacterial infection or mortality further increases.
Collapse
Affiliation(s)
- Akiko Nakamura
- Central Clinical Laboratories, Mie University Hospital, Tsu, Mie, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Abe Y, Wada H, Yamada E, Noda M, Ikejiri M, Nishioka J, Kobayashi T, Matsumoto T, Masuya M, Isaji S, Usui M, Uemoto S, Katayama N, Nobori T. The Effectiveness of Measuring for Fragmented Red Cells Using an Automated Hematology Analyzer in Patients With Thrombotic Microangiopathy. Clin Appl Thromb Hemost 2008; 15:257-62. [DOI: 10.1177/1076029608319879] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Thrombotic microangiopathy (TMA) or thrombotic thrombocytopenic purpura (TTP) is a life-threatening syndrome characterized by increased number of fragmented red cells (FRCs) and thrombocytopenia. FRCs can be measured using the recently developed automated hematology analyzer XE-2100. The normal range for FRCs is 0% to 0.205%, as determined by the automated hematology analyzer XE-2100. The FRC count is significantly elevated in patients with TMA associated with liver transplantation, bone marrow transplantation, or TTP. In patients with TMA after liver transplantation, the FRC count is significantly higher than in those without TMA. In receiver operating characteristic analysis for the diagnosis of TMA, the area under the curve is 0.986, suggesting that FRC is a useful marker for the diagnosis of TMA. When the cutoff value of FRC for TMA is 1.2%, the sensitivity is 90% and the specificity is 96%, indicating that FRC is the most useful screening test for the diagnosis of TMA.
Collapse
Affiliation(s)
- Yasunori Abe
- Central Laboratory, Mie University Graduate School of Medicine, Tsu
| | - Hideo Wada
- Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, .mie-u.ac.jp
| | - Eri Yamada
- Central Laboratory, Mie University Graduate School of Medicine, Tsu
| | - Maki Noda
- Central Laboratory, Mie University Graduate School of Medicine, Tsu
| | - Makoto Ikejiri
- Central Laboratory, Mie University Graduate School of Medicine, Tsu
| | - Junji Nishioka
- Central Laboratory, Mie University Graduate School of Medicine, Tsu
| | | | - Takeshi Matsumoto
- Department of Hematology, Mie University Graduate School of Medicine, Tsu
| | - Masahiro Masuya
- Department of Hematology, Mie University Graduate School of Medicine, Tsu
| | - Syuji Isaji
- The First Department of Surgery, Mie University Graduate School of Medicine, Tsu
| | - Masanobu Usui
- The First Department of Surgery, Mie University Graduate School of Medicine, Tsu
| | - Sinji Uemoto
- Hepatobiliary Pancreatic Surgery and Transplantation, Kyoto University Graduate School, Kyoto Japan
| | | | - Tsutomu Nobori
- Department of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu
| |
Collapse
|