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Saitou H, Kitaoka T, Kubota T, Kanno J, Mochizuki H, Michigami T, Hasegawa K, Fujiwara I, Hamajima T, Harada D, Seki Y, Nagasaki K, Dateki S, Namba N, Tokuoka H, Pimenta JM, Cohen S, Ozono K. Clinical outcomes and medical management of achondroplasia in Japanese children: A retrospective medical record review of clinical data. Am J Med Genet A 2024:e63612. [PMID: 38554024 DOI: 10.1002/ajmg.a.63612] [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: 12/24/2023] [Revised: 03/12/2024] [Accepted: 03/14/2024] [Indexed: 04/01/2024]
Abstract
Achondroplasia (ACH) is a rare, autosomal dominant skeletal dysplasia characterized by short stature, characteristic facial configuration, and trident hands. Before vosoritide approval in Japan, patients with ACH could start growth hormone (GH) treatment at age 3 years. However, ACH and its treatment in young Japanese children have not been studied. This retrospective, longitudinal, medical records-based cohort study (before vosoritide approval) summarized symptoms, complications, monitoring, surgery/interventions, and height with/without GH in Japanese patients with ACH <5 years. Complications were observed in 89.2% of all 37 patients; 75.7% required surgery or intervention. All patients were monitored by magnetic resonance imaging; 73.0% had foramen magnum stenosis, while 54.1% had Achondroplasia Foramen Magnum Score 3 or 4. Of 28 GH-treated patients, 22 initiating at age 3 years were generally taller after 12 months versus 9 non-GH-treated patients. Mean annual growth velocity significantly increased from age 2 to 3 versus 3 to 4 years in GH-treated patients (4.37 vs. 7.23 cm/year; p = 0.0014), but not in non-GH-treated patients (4.94 vs. 4.20 cm/year). The mean height at age 4 years with/without GH was 83.6/79.8 cm. These results improve our understanding of young patients with ACH in Japan and confirm that early diagnosis of ACH and monitoring of complications help facilitate appropriate interventions.
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Affiliation(s)
- Hiroyuki Saitou
- Department of Pediatrics, Osaka University Graduate School of Medicine, Suita, Japan
| | - Taichi Kitaoka
- Department of Pediatrics, Osaka University Graduate School of Medicine, Suita, Japan
| | - Takuo Kubota
- Department of Pediatrics, Osaka University Graduate School of Medicine, Suita, Japan
| | - Junko Kanno
- Department of Pediatrics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroshi Mochizuki
- Division of Endocrinology and Metabolism, Saitama Children's Medical Center, Saitama, Japan
| | - Toshimi Michigami
- Department of Bone and Mineral Research, Research Institute, Osaka Women's and Children's Hospital, Izumi, Japan
| | - Kosei Hasegawa
- Department of Pediatrics, Okayama University Hospital, Okayama, Japan
| | - Ikuma Fujiwara
- Department of Pediatrics, Sendai City Hospital, Sendai, Japan
| | - Takashi Hamajima
- Department of Endocrinology and Metabolism, Aichi Children's Health and Medical Center, Aichi, Japan
| | - Daisuke Harada
- Department of Pediatrics, Osaka Hospital, Japan Community of Health Care Organization (JCHO), Osaka, Japan
| | - Yuko Seki
- Department of Pediatrics, Kagoshima University School of Medicine, Kagoshima, Japan
| | - Keisuke Nagasaki
- Department of Pediatrics, Niigata University Medical & Dental Hospital, Niigata, Japan
| | - Sumito Dateki
- Department of Pediatrics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Noriyuki Namba
- Division of Pediatrics and Perinatology, Faculty of Medicine, Tottori University, Tottori, Japan
| | | | | | | | - Keiichi Ozono
- Department of Pediatrics, Osaka University Graduate School of Medicine, Suita, Japan
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Shibata N, Numakura C, Hamajima T, Miyako K, Fujiwara I, Mori J, Saitoh A, Nagasaki K. Clinical and molecular analyses of isolated central congenital hypothyroidism based on a survey conducted in Japan. Endocr J 2024:EJ23-0391. [PMID: 38462462 DOI: 10.1507/endocrj.ej23-0391] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/12/2024] Open
Abstract
Central congenital hypothyroidism (CH) can occur as an isolated deficiency or as part of combined pituitary hormone deficiency. Unlike primary CH, central CH cannot be detected by newborn screening (NBS) using dry filter paper blood TSH levels, and early diagnosis remains challenging. In this study, the clinical and genetic backgrounds of patients with isolated central CH were determined through a questionnaire-based survey among members of the Japanese Society for Pediatric Endocrinology. The known causes of isolated central CH were studied in 14 patients, including six with previously reported patient data. The results revealed IGSF1 and TBL1X pathogenic variants in nine and one patient, respectively. All six patients with low free thyroxine (FT4) levels detected in NBS carried IGSF1 pathogenic variants. Five patients with isolated central CH diagnosed after 3 months of age were variant-negative, except for one female patient with a heterozygous IGSF1 variant. Two of the four variant-negative patients and a variant-positive patient were diagnosed with pituitary hypoplasia. One and two patients with IGSF1 variant had obesity and intellectual disability, respectively. Left amblyopia was identified in the patient with a TBL1X variant. The study revalidated that IGSF1 variants comprise the most frequent pathogenic variant in patients with isolated central CH in Japan. The neonatal period is the optimal time for the diagnosis of central CH, particularly IGSF1 abnormalities, and the introduction of T4 screening should be considered in the future, taking cost-effectiveness into consideration.
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Affiliation(s)
- Nao Shibata
- Division of Pediatrics, Department of Homeostatic Regulation and Development, Faculty of Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8510, Japan
| | - Chikahiko Numakura
- Department of Pediatrics, Yamagata University School of Medicine, Yamagata 990-2331, Japan
| | - Takashi Hamajima
- Department of Endocrinology and Metabolism, Aichi Children's Health and Medical Center, Obu 474-8710, Japan
| | - Kenichi Miyako
- Department of Endocrinology and Metabolism, Fukuoka Children's Hospital, Fukuoka 813-0017, Japan
| | - Ikuma Fujiwara
- Department of Pediatric Endocrinology and Environmental Medicine, Graduate School of Medicine, Tohoku University, Sendai 980-8575, Japan
| | - Jun Mori
- Department of Pediatrics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Akihiko Saitoh
- Division of Pediatrics, Department of Homeostatic Regulation and Development, Faculty of Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8510, Japan
| | - Keisuke Nagasaki
- Division of Pediatrics, Department of Homeostatic Regulation and Development, Faculty of Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8510, Japan
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Shimura K, Ichihashi Y, Nakano S, Sato T, Hamajima T, Numasawa K, Narumi S, Hasegawa T, Ishii T. DHX37 Variant is One of Common Genetic Causes in Japanese Patients with Testicular Regression Syndrome / Partial Gonadal Dysgenesis without Müllerian Derivatives. Horm Res Paediatr 2024:000537761. [PMID: 38359811 DOI: 10.1159/000537761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 02/08/2024] [Indexed: 02/17/2024] Open
Abstract
INTRODUCTION The testicular regression syndrome (TRS) is a form of differences of sex development (DSD) in which the testes differentiate and function during early embryonic development, but subsequently regress. The clinical phenotype of TRS often overlaps with that of partial gonadal dysgenesis (PGD). Previous studies have demonstrated a causal association between TRS/PGD and heterozygous missense variants of DHX37. METHODS We enrolled 11 Japanese 46,XY individuals (from 10 families) with TRS/PGD who exhibited undetected or hypoplastic testes, Müllerian duct regression, and low serum testosterone or anti-Müllerian hormone levels. The subjects underwent targeted sequencing of 36 known causative genes for DSD, PCR-based Sanger sequencing of DHX37, or whole exome sequencing. RESULTS Previously described pathogenic variants or novel nonsense variants (SRY, NR5A1, and DMRT1) were observed in four out of 10 families. Additionally, we identified two heterozygous rare variants of DHX37 in four families: a previously reported pathogenic variant (c.923G>A, p.Arg308Gln) in three and a novel likely pathogenic variant (c.1882A>C, p.Thr628Pro) in one. The external genitalia of patients with the DHX37 variants varied from female-type to male-type without micropenis. Eighty percent of Japanese patients with TRS/PGD had monogenic disorders including DHX37 variant being the most commonly identified (40%). The external or internal genital phenotype of TRS/PGD overlaps between DHX37 variant carriers and others. CONCLUSIONS DHX37 variant is one of common genetic causes in Japanese patients with TRS/PGD without Müllerian derivatives. Genetic test is helpful in detecting DHX37-related TRS/PGD, because of the phenotypic diversity of the external genitalia in this disorder.
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Sawamura K, Hamajima T, Izawa M, Kaneko H, Kitamura A, Kitoh H. Changes of the lower limb deformity in children with FGF23-related hypophosphatemic rickets treated with Burosumab: a single-center prospective study. J Pediatr Orthop B 2024; 33:90-96. [PMID: 36728857 DOI: 10.1097/bpb.0000000000001054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 02/03/2023]
Abstract
Fibroblast growth factor 23 (FGF23)-related hypophosphatemic rickets (HPR) are characterized by excess circulating FGF23 and low concentrations of serum phosphorus, leading to skeletal manifestations of rickets, including lower limb deformities in children. The objective of this study was to prospectively evaluate whether treatment with burosumab, a monoclonal antibody neutralizing FGF23, changes lower limb deformities in HPR. Patients who were 15 years of age or younger with a documented clinical diagnosis of HPR, receiving burosumab treatment, and had a minimum follow-up period of one year were included in the study. Various radiological parameters were measured from anteroposterior and lateral radiographs of the bilateral lower limbs taken before administration of burosumab and at 3, 6, 9, and 12 months after treatment for evaluation of lower limb alignment. Outcome was classified as 'improvement', 'no change', or 'deterioration' after 12 months treatment. Five patients (10 limbs), with a mean age of 7.2 years were included in this study. The outcome was 'improvement' in six limbs and 'no change' in four limbs. There were no limbs of 'deterioration'. The improvement in deformities after treatment was more significant in younger patients who originally showed severe lower limb deformities. Older patients with milder deformities, on the other hand, showed less improvement. Burosumab therapy favorably changed lower-limb malalignment in children with FGF23-related HPR.
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Affiliation(s)
- Kenta Sawamura
- Department of Orthopaedic Surgery, Aichi Children's Health and Medical Center, Obu
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Showa-ku, Nagoya
| | - Takashi Hamajima
- Department of Endocrinology and Metabolism, Aichi Children's Health and Medical Center, Obu
| | - Masako Izawa
- Department of Endocrinology and Metabolism, Aichi Children's Health and Medical Center, Obu
| | - Hiroshi Kaneko
- Department of Orthopaedic Surgery, Aichi Children's Health and Medical Center, Obu
| | - Akiko Kitamura
- Department of Orthopaedic Surgery, Aichi Children's Health and Medical Center, Obu
| | - Hiroshi Kitoh
- Department of Orthopaedic Surgery, Aichi Children's Health and Medical Center, Obu
- Department of Comprehensive Pediatric Medicine, Nagoya University Graduate School of Medicine, Showa-ku, Nagoya, Aichi, Japan
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Hosokawa M, Ichihashi Y, Sato Y, Shibata N, Nagasaki K, Ikegawa K, Hasegawa Y, Hamajima T, Nagamatsu F, Suzuki S, Numakura C, Amano N, Sasaki G, Nagahara K, Soneda S, Ariyasu D, Maeda M, Kamasaki H, Aso K, Hasegawa T, Ishii T. Incidence and Risk Factors for Adrenal Crisis in Pediatric-onset Adrenal Insufficiency: A Prospective Study. J Clin Endocrinol Metab 2023:dgad753. [PMID: 38128002 DOI: 10.1210/clinem/dgad753] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 12/06/2023] [Accepted: 12/19/2023] [Indexed: 12/23/2023]
Abstract
PURPOSE To determine the incidence and risk factors for adrenal crisis (AC) in patients with pediatric-onset adrenal insufficiency (AI). MATERIALS AND METHODS This multicenter, prospective cohort study conducted in Japan enrolled patients diagnosed with AI at ≤ 15 years of age. The incidence of AC was calculated as events per person-year (PY), and risk factors for AC were assessed using Poisson regression multivariable analysis. RESULTS The study population comprised 349 patients (164 male, 185 female) with a total follow-up of 961 PY. The median age at enrollment was 14.3 years (interquartile range [IQR] 8.5-21.2 years), and the median follow-up was 2.8 years (IQR 2.2-3.3 years). Of these patients, 213 (61%) had primary AI and 136 (39%) had secondary AI. Forty-one AC events occurred in 31 patients during the study period. The calculated incidence of AC was 4.27 per 100 PY (95% confidence interval [CI] of 3.15-5.75). Poisson regression analysis identified younger age at enrollment (relative risk [RR] 0.93 [95% CI 0.89-0.97]) and increased number of infections (RR 1.17 [95% CI 1.07-1.27]) as significant risk factors. Female sex (RR 0.99 [95% CI 0.53-1.86]), primary AI (RR 0.65 [95 % CI 0.30-1.41]), or equivalent dosage of hydrocortisone per square meter of body area (RR 1.02 [95% CI 0.96-1.08]) was not a significant risk factor. CONCLUSION A substantial proportion of patients with pediatric-onset AI experience AC. Younger age and an increased number of infections are independent risk factors for developing AC in these patients.
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Affiliation(s)
- Mayumi Hosokawa
- Japanese Multicenter Study for Adrenal Crisis (JMSAC)
- Dept. of Pediatr., Keio Univ. Sch. of Med
- Dept. of Pediatr., Saitama City Hosp
| | - Yosuke Ichihashi
- Japanese Multicenter Study for Adrenal Crisis (JMSAC)
- Dept. of Pediatr., Keio Univ. Sch. of Med
| | - Yasunori Sato
- Dept. of Preventive Medicine and Public Health, Keio Univ. Sch. of Med
| | - Nao Shibata
- Japanese Multicenter Study for Adrenal Crisis (JMSAC)
- Dept. of Pediatr., Niigata Univ. Medical and Dental Hosp
| | - Keisuke Nagasaki
- Japanese Multicenter Study for Adrenal Crisis (JMSAC)
- Dept. of Pediatr., Niigata Univ. Medical and Dental Hosp
| | - Kento Ikegawa
- Japanese Multicenter Study for Adrenal Crisis (JMSAC)
- Dept. of Endocrinology and Metabolism, Tokyo Metropolitan Children's Medical Center
| | - Yukihiro Hasegawa
- Japanese Multicenter Study for Adrenal Crisis (JMSAC)
- Dept. of Endocrinology and Metabolism, Tokyo Metropolitan Children's Medical Center
| | - Takashi Hamajima
- Japanese Multicenter Study for Adrenal Crisis (JMSAC)
- Dept. of Endocrinology and Metabolism, Aichi Children's Health and Medical Center
| | - Fusa Nagamatsu
- Japanese Multicenter Study for Adrenal Crisis (JMSAC)
- Dept. of Pediatr., Kumamoto Univ. Sch. of Med
| | - Shigeru Suzuki
- Japanese Multicenter Study for Adrenal Crisis (JMSAC)
- Dept. of Pediatr., Asahikawa Medical Univ
| | - Chikahiko Numakura
- Japanese Multicenter Study for Adrenal Crisis (JMSAC)
- Dept. of Pediatr., Yamagata Univ. Faculty of Med
| | - Naoko Amano
- Japanese Multicenter Study for Adrenal Crisis (JMSAC)
- Dept. of Pediatr., Saitama City Hosp
| | - Goro Sasaki
- Japanese Multicenter Study for Adrenal Crisis (JMSAC)
- Dept. of Pediatr., Tokyo Dental College Ichikawa General Hosp
| | - Keiko Nagahara
- Japanese Multicenter Study for Adrenal Crisis (JMSAC)
- Dept. of Pediatr., Showa Univ, Sch. of Med
| | - Shun Soneda
- Japanese Multicenter Study for Adrenal Crisis (JMSAC)
- Dept. of Pediatr., St. Marianna Univ., Sch. of Med
| | - Daisuke Ariyasu
- Japanese Multicenter Study for Adrenal Crisis (JMSAC)
- Dept. of Pediatr., Kawasaki Municipal Hosp
| | - Miwako Maeda
- Japanese Multicenter Study for Adrenal Crisis (JMSAC)
- Dept. of Pediatr., Oita Univ. Faculty of Med
| | - Hotaka Kamasaki
- Japanese Multicenter Study for Adrenal Crisis (JMSAC)
- Dept. of Pediatr., Sapporo Medical Univ
| | - Keiko Aso
- Japanese Multicenter Study for Adrenal Crisis (JMSAC)
- Dept of Pediatr., Toho Univ. Omori Medical Center
| | - Tomonobu Hasegawa
- Japanese Multicenter Study for Adrenal Crisis (JMSAC)
- Dept. of Pediatr., Keio Univ. Sch. of Med
| | - Tomohiro Ishii
- Japanese Multicenter Study for Adrenal Crisis (JMSAC)
- Dept. of Pediatr., Keio Univ. Sch. of Med
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Nishimura-Kinoshita N, Ohata Y, Sawai H, Izawa M, Takeyari S, Kubota T, Omae Y, Ozono K, Tokunaga K, Hamajima T. A case of hyperphosphatemic familial tumoral calcinosis due to maternal uniparental disomy of a GALNT3 variant. Clin Pediatr Endocrinol 2023; 32:161-167. [PMID: 37362161 PMCID: PMC10288290 DOI: 10.1297/cpe.2022-0071] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 03/13/2023] [Indexed: 06/28/2023] Open
Abstract
Hyperphosphatemic familial tumoral calcinosis (HFTC) is a rare, inherited autosomal recessive disorder caused by fibroblast growth factor-23 (FGF23), N-acetylgalactosaminyltransferase 3 (GALNT3), or Klotho (KL) gene variants. Here, we report the case of a Japanese boy who presented with a mass in his left elbow at the age of three. Laboratory test results of the patient revealed normocalcemia (10.3 mg/dL) and hyperphosphatemia (8.7 mg/dL); however, despite hyperphosphatemia, serum intact FGF23 level was low, renal tubular reabsorption of phosphate (TRP) level was inappropriately increased, and 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) level was inappropriately normal. Genetic analysis revealed maternal uniparental disomy (UPD) of chromosome 2, which included a novel GALNT3 variant (c.1780-1G>C). Reverse transcription-polymerase chain reaction (RT-PCR) analysis of GALNT3 mRNA confirmed that this variant resulted in the destruction of exon 11. We resected the mass when the patient was five years old, owing to its gradual enlargement. No relapse or new pathological lesions were observed four years after tumor resection. This is the first case report of a Japanese patient with HFTC associated with a novel GALNT3 variant, as well as the first case of HFTC caused by maternal UPD of chromosome 2 that includes the GALNT3 variant.
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Affiliation(s)
- Naoko Nishimura-Kinoshita
- Department of Pediatrics, Tango Central Hospital, Kyoto, Japan
- Department of Endocrinology and Metabolism, Aichi Children's Health and Medical Center, Aichi, Japan
| | - Yasuhisa Ohata
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hiromi Sawai
- Department of Human Genetics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Masako Izawa
- Department of Endocrinology and Metabolism, Aichi Children's Health and Medical Center, Aichi, Japan
| | - Shinji Takeyari
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Takuo Kubota
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yosuke Omae
- Department of Human Genetics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Genome Medical Science Project (Toyama), National Center for Global Health and Medicine, Tokyo, Japan
| | - Keiichi Ozono
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Katsushi Tokunaga
- Department of Human Genetics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Genome Medical Science Project (Toyama), National Center for Global Health and Medicine, Tokyo, Japan
| | - Takashi Hamajima
- Department of Endocrinology and Metabolism, Aichi Children's Health and Medical Center, Aichi, Japan
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Yokoi K, Nakajima Y, Takahashi Y, Hamajima T, Tajima G, Saito K, Miyai S, Inagaki H, Yoshikawa T, Kurahashi H, Ito T. Transport and Golgi organization 2 deficiency with a prominent elevation of C14:1 during a metabolic crisis: A case report. JIMD Rep 2023; 64:3-9. [PMID: 36636595 PMCID: PMC9830013 DOI: 10.1002/jmd2.12275] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 01/14/2022] [Accepted: 01/18/2022] [Indexed: 01/16/2023] Open
Abstract
Mutations in transport and Golgi organization 2 homolog (TANGO2) have recently been described as a cause of an autosomal recessive syndrome characterized by episodes of metabolic crisis associated with rhabdomyolysis, cardiac arrhythmias, and neurodegeneration. Herein, we report a case of a one-and-a-half-year-old Japanese girl, born to nonconsanguineous parents, who presented with metabolic crisis characterized by hypoglycemia with hypoketonemia, rhabdomyolysis, lactic acidosis, and prolonged corrected QT interval (QTc) at the age of 6 months. Acylcarnitine analysis during the episode of crisis showed prominent elevation of C14:1, suggesting very-long-chain acyl-CoA dehydrogenase (VLCAD) deficiency. In addition, worsening rhabdomyolysis was observed after intravenous administration of L-carnitine. VLCAD deficiency was initially suspected; however, the enzyme activity in lymphocytes was only mildly decreased at the gene carrier level, and no mutation in the VLCAD gene (ADADVL) was detected. Subsequently, acylcarnitine analysis was nonspecific at 17-h fasting and almost normal during the stable phase. Eventually, a trio whole-exome sequencing revealed a compound heterozygous variant of two novel variants in the TANGO2 gene, a missense variant, and a deletion of exon 7. This is the first case of TANGO2 deficiency in Asians. Our case suggests that elevated C14:1 may be seen in severe metabolic crises and that the use of L-carnitine should be avoided during metabolic crises.
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Affiliation(s)
- Katsuyuki Yokoi
- Department of PediatricsFujita Health University School of MedicineToyoakeJapan
- Division of Molecular GeneticsInstitute for Comprehensive Medical Science, Fujita Health UniversityToyoakeJapan
| | - Yoko Nakajima
- Department of PediatricsFujita Health University School of MedicineToyoakeJapan
| | - Yoshihisa Takahashi
- Department of Endocrinology and MetabolismAichi Children's Health and Medical CenterOhbuJapan
| | - Takashi Hamajima
- Department of Endocrinology and MetabolismAichi Children's Health and Medical CenterOhbuJapan
| | - Go Tajima
- Division of Neonatal ScreeningResearch Institute, National Center for Child Health and DevelopmentTokyoJapan
| | - Kazuyoshi Saito
- Department of PediatricsFujita Health University School of MedicineToyoakeJapan
| | - Shunsuke Miyai
- Division of Molecular GeneticsInstitute for Comprehensive Medical Science, Fujita Health UniversityToyoakeJapan
| | - Hidehito Inagaki
- Division of Molecular GeneticsInstitute for Comprehensive Medical Science, Fujita Health UniversityToyoakeJapan
| | - Tetsushi Yoshikawa
- Department of PediatricsFujita Health University School of MedicineToyoakeJapan
| | - Hiroki Kurahashi
- Division of Molecular GeneticsInstitute for Comprehensive Medical Science, Fujita Health UniversityToyoakeJapan
| | - Tetsuya Ito
- Department of PediatricsFujita Health University School of MedicineToyoakeJapan
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Kawashima-Sonoyama Y, Hotsubo T, Hamajima T, Hamajima N, Fujimoto M, Namba N, Kanzaki S. Various phenotypes of short stature with heterozygous IGF-1 receptor ( IGF1R) mutations. Clin Pediatr Endocrinol 2022; 31:59-67. [PMID: 35431446 PMCID: PMC8981046 DOI: 10.1297/cpe.2021-0064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 01/17/2022] [Indexed: 11/04/2022] Open
Affiliation(s)
- Yuki Kawashima-Sonoyama
- Division of Pediatrics & Perinatology, Tottori University Faculty of Medicine, Yonago, Japan
| | | | - Takashi Hamajima
- Department of Pediatric Endocrinology and Metabolism, Aichi Children’s Health and Medical Center, Obu, Japan
| | - Naoki Hamajima
- Department of Pediatrics, Nagoya City West Medical Center, Nagoya, Japan
| | - Masanobu Fujimoto
- Division of Pediatrics & Perinatology, Tottori University Faculty of Medicine, Yonago, Japan
| | - Noriyuki Namba
- Division of Pediatrics & Perinatology, Tottori University Faculty of Medicine, Yonago, Japan
| | - Susumu Kanzaki
- Division of Pediatrics & Perinatology, Tottori University Faculty of Medicine, Yonago, Japan
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Izawa M, Hisamatsu E, Yoshino K, Yoshida M, Sato T, Narumi S, Hasegawa T, Hamajima T. Complete androgen insensitivity syndrome with accelerated onset of puberty due to a Sertoli cell tumor. Clin Pediatr Endocrinol 2021; 30:99-104. [PMID: 33867670 PMCID: PMC8022032 DOI: 10.1297/cpe.30.99] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 12/27/2020] [Indexed: 11/12/2022] Open
Abstract
Complete androgen insensitivity syndrome (CAIS) is caused by mutations in the androgen
receptor gene. Patients with this syndrome have a 46,XY karyotype, male gonads, and normal
female external genitalia. While the pre-pubertal risk of developing gonadal tumors is low
in these patients, it increases with age. Most gonadal tumors arise from germ cells;
stromal cell tumors are uncommon. Herein, we report a CAIS patient with a feminizing
Sertoli cell tumor. The patient presented at 8 yr of age with breast enlargement and
growth acceleration, concomitant with elevated serum estradiol levels and suppressed serum
gonadotropin levels; these findings were inconsistent with CAIS. The patient underwent
gonadectomy at 10 yr of age, and histology demonstrated presence of a non-malignant
Sertoli cell tumor in the right gonad. We conclude that this is the first reported case of
CAIS with accelerated onset of puberty resulting from a Sertoli cell tumor.
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Affiliation(s)
- Masako Izawa
- Department of Endocrinology and Metabolism, Aichi Children's Health and Medical Center, Aichi, Japan
| | - Eiji Hisamatsu
- Department of Urology, Aichi Children's Health and Medical Center, Aichi, Japan
| | - Kaoru Yoshino
- Department of Urology, Aichi Children's Health and Medical Center, Aichi, Japan
| | - Makiko Yoshida
- Department of Pathology, Kobe Children's Hospital, Hyogo, Japan
| | - Takeshi Sato
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
| | - Satoshi Narumi
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan.,Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Tomonobu Hasegawa
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
| | - Takashi Hamajima
- Department of Endocrinology and Metabolism, Aichi Children's Health and Medical Center, Aichi, Japan
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10
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Itonaga T, Izawa M, Hamajima T, Hasegawa Y. First Morning Pregnanetriol and 17-Hydroxyprogesterone Correlated Significantly in 21-Hydroxylase Deficiency. Front Endocrinol (Lausanne) 2021; 12:808254. [PMID: 35140686 PMCID: PMC8820395 DOI: 10.3389/fendo.2021.808254] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 12/27/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Biochemically monitoring 21-hydroxylase deficiency (21-OHD) is challenging. Serum/blood 17-hydroxyprogesterone (17OHP) measurements are normally used for this purpose. Urinary pregnanetriol (PT), a urinary metabolite of 17OHP, may also be used. Based on auxological data, we previously reported that the optimal first morning PT value fell in the range of 2.2-3.3 mg/gCr (95% confidence interval of the mean) and 0.59-6.0 mg/gCr (10th - 90th percentile) for monitoring 21-OHD treatment. No report thus far has directly compared the first morning urinary PT value with the 17OHP value at various times during the day. OBJECTIVE To explore the correlation between the first morning urinary PT value before glucocorticoid administration and the serum/blood 17OHP value at three time points, namely, before and two and four hours after glucocorticoid administration. DESIGN This was a prospective study done at two children's hospitals. METHODS In total, 25 patients with 21-OHD aged 3-25 years were recruited. Their urinary PT levels and 17OHP levels were measured for three days within a total period of one week. The first morning PT value was collected on all three days. Dried blood spots and serum were used to measure 17OHP. RESULTS The range for the first morning PT value for all the samples (n=69) was 0.10-56.1 mg/gCr. A significant, positive correlation was found between the first morning PT and 17OHP values before medication (r=0.87, p<0.01), and weaker correlation was observed between the first morning PT and 17OHP values after medication. CONCLUSIONS The first morning PT correlated more significantly with 17OHP before the morning medication. Measuring the first morning PT value may be more practical and useful for monitoring 21-OHD biochemically.
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Affiliation(s)
- Tomoyo Itonaga
- Division of Endocrinology and Metabolism, Tokyo Metropolitan Children’s Medical Center, Tokyo, Japan
- Department of Pediatrics, Oita University Faculty of Medicine, Oita, Japan
| | - Masako Izawa
- Department of Pediatric Endocrinology and Metabolism, Aichi Children’s Health and Medical Center, Aichi, Japan
| | - Takashi Hamajima
- Department of Pediatric Endocrinology and Metabolism, Aichi Children’s Health and Medical Center, Aichi, Japan
| | - Yukihiro Hasegawa
- Division of Endocrinology and Metabolism, Tokyo Metropolitan Children’s Medical Center, Tokyo, Japan
- *Correspondence: Yukihiro Hasegawa,
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11
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Ishii T, Tajima T, Kashimada K, Mukai T, Tanahashi Y, Katsumata N, Kanno J, Hamajima T, Miyako K, Ida S, Hasegawa T. Clinical Features of 57 Patients with Lipoid Congenital Adrenal Hyperplasia: Criteria for Nonclassic Form Revisited. J Clin Endocrinol Metab 2020; 105:5896589. [PMID: 32835366 DOI: 10.1210/clinem/dgaa557] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 08/14/2020] [Indexed: 02/13/2023]
Abstract
CONTEXT Lipoid congenital adrenal hyperplasia (LCAH) is caused by mutations in STAR. Classic (CLCAH) and nonclassic (NCLCAH) forms were reported as total and partial deficiencies, respectively, of adrenal and gonadal steroid hormones. The rarity of LCAH has precluded large-scale epidemiological and clinical investigations. OBJECTIVE To determine the epidemiological and clinical characteristics of 2 forms of LCAH. DESIGN A multicenter cross-sectional cohort study in Japan on December 1, 2017. PARTICIPANTS Fifty-seven patients with LCAH (median age, 23.7 years; range, 0.0-47.5 years). MAIN OUTCOME MEASURES Patient demographics, STAR genotype, Quigley grade, endocrinological and imaging data, treatment, and prognosis. RESULTS Fifty-three and 4 patients fulfilled definite and probable diagnostic criteria for LCAH, respectively. When NCLCAH was defined as either Quigley grade 1 in XY karyotype, no episode of salt losing or requirement of fludrocortisone, or onset of primary adrenal insufficiency (PAI) at 1 year or older, patients were divided into groups of 43 patients with CLCAH (75.4%), 11 with NCLCAH (19.3%), and 3 with unclassified LCAH (5.3%). All of the patients with CLCAH and 7/11 NCLCAH (63.6%) were treated with fludrocortisone. CLCAH was diagnosed at a significantly younger age than NCLCAH (median, 0.0 vs 4.0 years). STAR-Arg272Cys or -Met225Thr was identified only in NCLCAH (8/11, 72.7%). CONCLUSIONS We demonstrated the relative proportions and clinical and molecular characteristics of NCLCAH and CLCAH in Japan. These criteria for NCLCAH correspond to all previously published cases and our cases whose masculinization of the external genitalia, ability of mineralocorticoid production, and onset of PAI were described.
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MESH Headings
- Adolescent
- Adrenal Hyperplasia, Congenital/diagnosis
- Adrenal Hyperplasia, Congenital/drug therapy
- Adrenal Hyperplasia, Congenital/genetics
- Adult
- Child
- Child, Preschool
- Cross-Sectional Studies
- Disorder of Sex Development, 46,XY/diagnosis
- Disorder of Sex Development, 46,XY/drug therapy
- Disorder of Sex Development, 46,XY/genetics
- Female
- Fludrocortisone/therapeutic use
- Humans
- Infant
- Infant, Newborn
- Japan
- Middle Aged
- Mineralocorticoids/therapeutic use
- Mutation
- Phenotype
- Phosphoproteins/genetics
- Prognosis
- Young Adult
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Affiliation(s)
- Tomohiro Ishii
- Research Committee on Disorders of Adrenal Hormones, Research on Intractable Diseases, Health and Labour Sciences Research Grants, Tokyo, Japan
- Disorders of Sex Development and Adrenal Disorders Committee, the Japanese Society for Pediatric Endocrinology, Fushimi-ku, Kyoto, Japan
- Department of Pediatrics, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Toshihiro Tajima
- Research Committee on Disorders of Adrenal Hormones, Research on Intractable Diseases, Health and Labour Sciences Research Grants, Tokyo, Japan
- Department of Pediatrics, Jichi Medical University Tochigi Children's Medical Center, Shimotsuke, Tochigi, Japan
| | - Kenichi Kashimada
- Research Committee on Disorders of Adrenal Hormones, Research on Intractable Diseases, Health and Labour Sciences Research Grants, Tokyo, Japan
- Disorders of Sex Development and Adrenal Disorders Committee, the Japanese Society for Pediatric Endocrinology, Fushimi-ku, Kyoto, Japan
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tokuo Mukai
- Research Committee on Disorders of Adrenal Hormones, Research on Intractable Diseases, Health and Labour Sciences Research Grants, Tokyo, Japan
- Disorders of Sex Development and Adrenal Disorders Committee, the Japanese Society for Pediatric Endocrinology, Fushimi-ku, Kyoto, Japan
- Department of Pediatrics, Asahikawa-Kosei General Hospital, Asahikawa, Hokkaido, Japan
| | - Yusuke Tanahashi
- Research Committee on Disorders of Adrenal Hormones, Research on Intractable Diseases, Health and Labour Sciences Research Grants, Tokyo, Japan
- Department of Pediatrics, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Noriyuki Katsumata
- Research Committee on Disorders of Adrenal Hormones, Research on Intractable Diseases, Health and Labour Sciences Research Grants, Tokyo, Japan
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Junko Kanno
- Disorders of Sex Development and Adrenal Disorders Committee, the Japanese Society for Pediatric Endocrinology, Fushimi-ku, Kyoto, Japan
- Department of Pediatrics, Tohoku University School of Medicine, Sendai, Miyagi, Japan
| | - Takashi Hamajima
- Disorders of Sex Development and Adrenal Disorders Committee, the Japanese Society for Pediatric Endocrinology, Fushimi-ku, Kyoto, Japan
- Department of Endocrinology and Metabolism, Aichi Children's Health and Medical Center, Obu, Aichi, Japan
| | - Kenichi Miyako
- Disorders of Sex Development and Adrenal Disorders Committee, the Japanese Society for Pediatric Endocrinology, Fushimi-ku, Kyoto, Japan
- Department of Endocrinology and Metabolism, Fukuoka Children's Hospital, Fukuoka, Fukuoka, Japan
| | - Shinobu Ida
- Disorders of Sex Development and Adrenal Disorders Committee, the Japanese Society for Pediatric Endocrinology, Fushimi-ku, Kyoto, Japan
- Department of Pediatric Gastroenterology and Endocrinology, Osaka Medical Center and Research Institute for Maternal and Child Health, Izumi, Osaka, Japan
| | - Tomonobu Hasegawa
- Research Committee on Disorders of Adrenal Hormones, Research on Intractable Diseases, Health and Labour Sciences Research Grants, Tokyo, Japan
- Department of Pediatrics, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
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12
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Yoshinaga M, Miyazaki A, Aoki M, Ogata H, Ito Y, Hamajima T, Tokuda M, Lin L, Horigome H, Takahashi H, Nagashima M. Promoting physical activity through walking to treat childhood obesity, mainly for mild to moderate obesity. Pediatr Int 2020; 62:976-984. [PMID: 32304151 DOI: 10.1111/ped.14253] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 02/18/2020] [Accepted: 03/27/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND There are no randomized controlled trials examining the effect of walking on childhood obesity. METHODS A randomized controlled trial was conducted between August 2014 and April 2015 in Japan. Elementary school children aged 6 to 12 years with a percentage overweight (%OW) of ≥20% were recruited. One hundred and ninety children wanted to participate in the program, and all were accepted. After viewing a video that promoted physical activity through walking, participants were randomly assigned to three groups: walking (≥10 000 steps on school holidays), limiting screen time (<90 min on weekdays and <150 min on school holidays), and a control group (no intervention). The primary outcome was a decrease in %OW after 3 months' intervention. Per protocol analysis was performed using 156 participants who fulfilled the inclusion criteria of a %OW ≥20%. RESULTS The mean %OW was 35 ± 7% before intervention. The mean reduction in %OW after intervention in the walking (n = 59), limiting ST (n = 46), and control (n = 51) groups were -4.06 ± 4.84, -1.97 ± 4.62, and -1.81 ± 3.64 percentage points, respectively. Reduction in %OW was significantly larger in the walking group than in the control group: adjusted mean difference, -2.18 percentage points (95% confidence interval, -3.85 to -0.52), P = 0.002. The intervention in children also had favorable effects on the lifestyles of their parents. The intention-to-treat analysis of all 190 participants showed comparable results. CONCLUSION Promoting physical activity through walking on school holidays may be an additional strategy for treating elementary school children with obesity.
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Affiliation(s)
- Masao Yoshinaga
- Department of Pediatrics, National Hospital Organization Kagoshima Medical Center, Kagoshima, Japan
| | - Ayumi Miyazaki
- Department of Pediatrics, Japan Community Health Care Organization Takaoka Fushiki Hospital, Takaoka, Japan
| | - Machiko Aoki
- Aoki Internal Cardiology and Pediatric Clinic, Fukuoka, Japan
| | - Hiromitsu Ogata
- Epidemiology and Biostatistics, Kagawa Nutrition University, Sakado, Japan
| | - Yoshiya Ito
- Faculty of Nursing, Japanese Red Cross Hokkaido College of Nursing, Kitami, Japan
| | - Takashi Hamajima
- Department of Endocrinology and Metabolism, Aichi Children's Health and Medical Center, Ohbu, Japan
| | | | - Lisheng Lin
- Department of Child Health, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Hitoshi Horigome
- Department of Child Health, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
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13
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Aoyama K, Mizuno H, Tanaka T, Togawa T, Negishi Y, Ohashi K, Hori I, Izawa M, Hamajima T, Saitoh S. Molecular genetic and clinical delineation of 22 patients with congenital hypogonadotropic hypogonadism. J Pediatr Endocrinol Metab 2017; 30:1111-1118. [PMID: 28915117 DOI: 10.1515/jpem-2017-0035] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 07/31/2017] [Indexed: 11/15/2022]
Abstract
BACKGROUND Congenital hypogonadotropic hypogonadism (CHH) is classified as Kallmann syndrome (KS) with anosmia/hyposmia or normosmic (n)CHH. Here, we investigated the genetic causes and phenotype-genotype correlations in Japanese patients with CHH. METHODS We enrolled 22 Japanese patients with CHH from 21 families (18 patients with KS and 4 with nCHH) and analyzed 27 genes implicated in CHH by next-generation and Sanger sequencing. RESULTS We detected 12 potentially pathogenic mutations in 11 families, with three having a mutation in ANOS1 (X-linked recessive); three and four having a mutation in FGFR1 and CHD7, respectively (autosomal dominant); and one having two TACR3 mutations (autosomal recessive). Among four patients with KS carrying a CHD7 mutation, one had perceptive deafness and two had a cleft lip/palate. CONCLUSIONS The frequency of CHH genes in the Japanese was compatible with previous reports, except that CHD7 mutations might be more common. Furthermore, partial phenotype-genotype correlations were demonstrated in our cohort.
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14
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Imagawa S, Mito T, Takahata K, Yamada S, Yanagi N, Chikaraishi H, Maekawa R, Tamura H, Iwamoto A, Hamaguchi S, Obana T, Okamura T, Shirai Y, Ise T, Hamajima T. Overview of LHD Superconducting Magnet System and Its 10-Year Operation. Fusion Science and Technology 2017. [DOI: 10.13182/fst10-a10843] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. Imagawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Mito
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Takahata
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Yamada
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - N. Yanagi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - H. Chikaraishi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - R. Maekawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - H. Tamura
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - A. Iwamoto
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Hamaguchi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Obana
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Okamura
- Tokyo Institute of Technology, Yokohama 226-8502, Japan
| | - Y. Shirai
- Kyoto University, Kyoto 606-8501, Japan
| | - T. Ise
- Osaka University, Suita 565-0871, Japan
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15
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Shima H, Tanaka T, Kamimaki T, Dateki S, Muroya K, Horikawa R, Kanno J, Adachi M, Naiki Y, Tanaka H, Mabe H, Yagasaki H, Kure S, Matsubara Y, Tajima T, Kashimada K, Ishii T, Asakura Y, Fujiwara I, Soneda S, Nagasaki K, Hamajima T, Kanzaki S, Jinno T, Ogata T, Fukami M. Systematic molecular analyses of SHOX in Japanese patients with idiopathic short stature and Leri-Weill dyschondrosteosis. J Hum Genet 2016; 61:585-91. [PMID: 26984564 DOI: 10.1038/jhg.2016.18] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 02/09/2016] [Accepted: 02/15/2016] [Indexed: 02/07/2023]
Abstract
The etiology of idiopathic short stature (ISS) and Leri-Weill dyschondrosteosis (LWD) in European patients is known to include SHOX mutations and copy-number variations (CNVs) involving SHOX and/or the highly evolutionarily conserved non-coding DNA elements (CNEs) flanking the gene. However, the frequency and types of SHOX abnormalities in non-European patients and the clinical importance of mutations in the CNEs remains to be clarified. Here, we performed systematic molecular analyses of SHOX for 328 Japanese patients with ISS or LWD. SHOX abnormalities accounted for 3.8% of ISS and 50% of LWD cases. CNVs around SHOX were identified in 16 cases, although the ~47 kb deletion frequently reported in European patients was absent in our cases. Probably damaging mutations and benign/silent substitutions were detected in four cases, respectively. Although CNE-linked substitutions were detected in 15 cases, most of them affected poorly conserved nucleotides and were shared by unaffected individuals. These results suggest that the frequency and mutation spectrum of SHOX abnormalities are comparable between Asian and European patients, with the exception of a European-specific downstream deletion. Furthermore, this study highlights the clinical importance and genetic heterogeneity of the SHOX-flanking CNVs, and indicates a limited clinical significance of point mutations in the CNEs.
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Affiliation(s)
- Hirohito Shima
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan.,Department of Advanced Pediatric Medicine, Tohoku University School of Medicine, Tokyo, Japan
| | | | - Tsutomu Kamimaki
- Department of Pediatrics, Shizuoka City Shimizu Hospital, Shizuoka, Japan
| | - Sumito Dateki
- Department of Pediatrics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Koji Muroya
- Department of Endocrinology and Metabolism, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Reiko Horikawa
- Division of Endocrinology and Metabolism, National Center for Child Health and Development, Tokyo, Japan
| | - Junko Kanno
- Department of Pediatrics, Tohoku University School of Medicine, Sendai, Japan
| | - Masanori Adachi
- Department of Endocrinology and Metabolism, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Yasuhiro Naiki
- Division of Endocrinology and Metabolism, National Center for Child Health and Development, Tokyo, Japan
| | - Hiroyuki Tanaka
- Department of Pediatrics, Okayama Saiseikai General Hospital, Okayama, Japan
| | - Hiroyo Mabe
- Department of Child Development, Kumamoto University Hospital, Kumamoto, Japan
| | - Hideaki Yagasaki
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Shigeo Kure
- Department of Pediatrics, Tohoku University School of Medicine, Sendai, Japan
| | - Yoichi Matsubara
- Department of Advanced Pediatric Medicine, Tohoku University School of Medicine, Tokyo, Japan.,National Research Institute for Child Health and Development, Tokyo, Japan
| | - Toshihiro Tajima
- Department of Pediatrics, Hokkaido University School of Medicine, Sapporo, Japan
| | - Kenichi Kashimada
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tomohiro Ishii
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
| | - Yumi Asakura
- Department of Endocrinology and Metabolism, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Ikuma Fujiwara
- Environment and Genome Research Center, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shun Soneda
- Department of Pediatrics, St Marianna University School of Medicine, Kawasaki, Japan
| | - Keisuke Nagasaki
- Division of Pediatrics, Department of Homeostatic Regulation and Development, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Takashi Hamajima
- Division of Endocrinology and Metabolism, Aichi Children's Health and Medical Center, Obu, Japan
| | - Susumu Kanzaki
- Division of Pediatrics and Perinatology, Tottori University Faculty of Medicine, Yonago, Japan
| | - Tomoko Jinno
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Tsutomu Ogata
- Department of Pediatrics, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Maki Fukami
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
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16
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Fujimoto M, Kawashima Sonoyama Y, Hamajima N, Hamajima T, Kumura Y, Miyahara N, Nishimura R, Adachi K, Nanba E, Hanaki K, Kanzaki S. Heterozygous nonsense mutations near the C-terminal region of IGF1R in two patients with small-for-gestational-age-related short stature. Clin Endocrinol (Oxf) 2015; 83:834-41. [PMID: 25866162 DOI: 10.1111/cen.12791] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [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] [Received: 01/26/2015] [Revised: 02/14/2015] [Accepted: 04/04/2015] [Indexed: 12/19/2022]
Abstract
OBJECTIVE The type I insulin-like growth factor I receptor (IGF1R) plays an important role in growth. We aimed to evaluate the detailed mechanism underlying the effect of IGF1R on human growth. PATIENTS AND METHODS We have performed sequence analysis of IGF1R in 55 patients with SGA short stature in Japan, since 2004, and identified novel heterozygous nonsense mutations in 2 patients: an 8-year-old Japanese boy (case 1), with a birthweight of 2228 g (-3·3 SDS) and height of 46 cm (-2·1 SDS), and a 3-year-old Japanese girl (case 2), with a birthweight of 2110 g (-3·0 SDS) and height of 44·3 cm (-2·8 SDS). Both patients had a short stature (-3·2 SDS, -3·1 SDS). We determined the protein expression of mutated IGF1R, assessed the effect of the endoplasmic reticulum-associated degradation (ERAD) pathway on mutated IGF1R, assessed the dominant-negative effect of IGF1R and performed quantitative RT-PCR analysis of IGF1R mRNA expression in whole blood cells. RESULTS Two novel heterozygous nonsense mutations (case 1: p.Q1250X and case 2: p.W1249X) were identified. Although these mutations did not affect blood IGF1R mRNA levels, they significantly decreased the expression of IGF1R protein in transiently transfected cells. Treatment with the proteasome inhibitor MG132 showed significantly increased IGF1R protein. CONCLUSIONS Heterozygous nonsense mutations affecting the C-terminal region (p.Q1250X, p.W1249X) of IGF1R decreased the expression of IGF1R through the ERAD pathway. Our study revealed the importance of the C-terminal region and the dosage of this receptor for growth.
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Affiliation(s)
- Masanobu Fujimoto
- Division of Pediatrics & Perinatology, Tottori University Faculty of Medicine, Yonago, Japan
| | - Yuki Kawashima Sonoyama
- Division of Pediatrics & Perinatology, Tottori University Faculty of Medicine, Yonago, Japan
| | - Naoki Hamajima
- Department of Pediatrics, Nagoya City West Medical Center, Nagoya, Japan
| | - Takashi Hamajima
- Department of Pediatric Endocrinology and Metabolism, Aichi Children's Health and Medical Center, Obu, Japan
| | - Yumiko Kumura
- Division of Functional Genomics, Research Center for Bioscience and Technology, Tottori University, Yonago, Japan
| | - Naoki Miyahara
- Division of Pediatrics & Perinatology, Tottori University Faculty of Medicine, Yonago, Japan
| | - Rei Nishimura
- Division of Pediatrics & Perinatology, Tottori University Faculty of Medicine, Yonago, Japan
| | - Kaori Adachi
- Division of Functional Genomics, Research Center for Bioscience and Technology, Tottori University, Yonago, Japan
| | - Eiji Nanba
- Division of Functional Genomics, Research Center for Bioscience and Technology, Tottori University, Yonago, Japan
| | - Keiichi Hanaki
- Department of Women's & Children's Family Nursing, Tottori University Faculty of Medicine, Yonago, Japan
| | - Susumu Kanzaki
- Division of Pediatrics & Perinatology, Tottori University Faculty of Medicine, Yonago, Japan
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17
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Saito Y, Shichiri M, Hamajima T, Ishida N, Mita Y, Nakao S, Hagihara Y, Yoshida Y, Takahashi K, Niki E, Noguchi N. Enhancement of lipid peroxidation and its amelioration by vitamin E in a subject with mutations in the SBP2 gene. J Lipid Res 2015; 56:2172-82. [PMID: 26411970 PMCID: PMC4617404 DOI: 10.1194/jlr.m059105] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [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: 03/08/2015] [Indexed: 02/05/2023] Open
Abstract
Selenocysteine (Sec) insertion sequence-binding protein 2 (SBP2) is essential for the biosynthesis of Sec-containing proteins, termed selenoproteins. Subjects with mutations in the SBP2 gene have decreased levels of several selenoproteins, resulting in a complex phenotype. Selenoproteins play a significant role in antioxidative defense, and deficiencies in these proteins can lead to increased oxidative stress. However, lipid peroxidation and the effects of antioxidants in subjects with SBP2 gene mutations have not been studied. In the present study, we evaluated the lipid peroxidation products in the blood of a subject (the proband) with mutations in the SBP2 gene. We found that the proband had higher levels of free radical-mediated lipid peroxidation products, such as 7β-hydroxycholesterol, than the control subjects. Treatment of the proband with vitamin E (α-tocopherol acetate, 100 mg/day), a lipid-soluble antioxidant, for 2 years reduced lipid peroxidation product levels to those of control subjects. Withdrawal of vitamin E treatment for 7 months resulted in an increase in lipid peroxidation products. Collectively, these results clearly indicate that free radical-mediated oxidative stress is increased in the subject with SBP2 gene mutations and that vitamin E treatment effectively inhibits the generation of lipid peroxidation products.
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Affiliation(s)
- Yoshiro Saito
- Systems Life Sciences Laboratory, Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Kyoto 610-0394, Japan
| | - Mototada Shichiri
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka 563-8577, Japan
| | - Takashi Hamajima
- Department of Pediatric Endocrinology and Metabolism, Aichi Children's Health and Medical Center, Obu, Aichi 474-8710, Japan
| | - Noriko Ishida
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka 563-8577, Japan
| | - Yuichiro Mita
- Systems Life Sciences Laboratory, Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Kyoto 610-0394, Japan
| | - Shohei Nakao
- Systems Life Sciences Laboratory, Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Kyoto 610-0394, Japan
| | - Yoshihisa Hagihara
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka 563-8577, Japan
| | - Yasukazu Yoshida
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka 563-8577, Japan
| | - Kazuhiko Takahashi
- Department of Nutritional Biochemistry, Hokkaido Pharmaceutical University, Otaru, Hokkaido 047-0264, Japan
| | - Etsuo Niki
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka 563-8577, Japan
| | - Noriko Noguchi
- Systems Life Sciences Laboratory, Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Kyoto 610-0394, Japan
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Abe K, Narumi S, Suwanai AS, Hamajima T, Hasegawa T. Pseudodominant inheritance in a family with nonautoimmune hypothyroidism due to biallelic DUOX2 mutations. Clin Endocrinol (Oxf) 2015; 83:394-8. [PMID: 25263060 DOI: 10.1111/cen.12622] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [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] [Received: 03/31/2014] [Revised: 04/17/2014] [Accepted: 09/23/2014] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Mutations in the dual oxidase 2 gene (DUOX2) is the most common genetic cause of congenital hypothyroidism (CH) in Japan. All previously described DUOX2 mutation-carrying families have followed autosomal recessive inheritance. We report a nonconsanguineous Japanese family harbouring biallelic DUOX2 mutations, which presented an apparently dominant inheritance of nonautoimmune hypothyroidism. DESIGN AND METHODS The proband and her two sisters had been diagnosed as having CH on newborn screening and were treated with levothyroxine. Their mother had subclinical hypothyroidism. We sequenced DUOX2 in the proband and her family members. Pathogenicity of the identified novel mutation (p.Y1347C) was verified in vitro. RESULTS We found that the proband and her sisters were compound heterozygous for a novel DUOX2 mutation p.Y1347C and a previously reported functional variant p.H678R. Unexpectedly, we found that the mother was homozygous for p.H678R. Expression experiments showed that the p.Y1347C mutant had reduced H2 O2 -producing activity, although there was no significant difference in the level of protein expression or localization, between wild type and p.Y1347C. CONCLUSIONS We report a DUOX2 mutation-carrying pedigree presenting pseudodominant inheritance of nonautoimmune hypothyroidism. We speculate that the relatively high frequency of DUOX2 mutations could lead to pseudodominant inheritance in Japan.
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Affiliation(s)
- Kiyomi Abe
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
| | - Satoshi Narumi
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
| | - Ayuko S Suwanai
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
| | - Takashi Hamajima
- Division of Endocrinology and Metabolism, Aichi Childeren's Health and Medical Center, Aichi, Japan
| | - Tomonobu Hasegawa
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
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Kon M, Suzuki E, Dung V, Hasegawa Y, Mitsui T, Muroya K, Ueoka K, Igarashi N, Nagasaki K, Oto Y, Hamajima T, Yoshino K, Igarashi M, Kato-Fukui Y, Nakabayashi K, Hayashi K, Hata K, Matsubara Y, Moriya K, Ogata T, Nonomura K, Fukami M. Molecular basis of non-syndromic hypospadias: systematic mutation screening and genome-wide copy-number analysis of 62 patients. Hum Reprod 2015; 30:499-506. [DOI: 10.1093/humrep/deu364] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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20
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Kato F, Hamajima T, Hasegawa T, Amano N, Horikawa R, Nishimura G, Nakashima S, Fuke T, Sano S, Fukami M, Ogata T. IMAGe syndrome: clinical and genetic implications based on investigations in three Japanese patients. Clin Endocrinol (Oxf) 2014; 80:706-13. [PMID: 24313804 DOI: 10.1111/cen.12379] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [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] [Received: 10/01/2013] [Revised: 11/24/2013] [Accepted: 11/29/2013] [Indexed: 02/04/2023]
Abstract
OBJECTIVE Arboleda et al. have recently shown that IMAGe (intra-uterine growth restriction, metaphyseal dysplasia, adrenal hypoplasia congenita and genital abnormalities) syndrome is caused by gain-of-function mutations of maternally expressed gene CDKN1C on chromosome 11p15.5. However, there is no other report describing clinical findings in patients with molecularly studied IMAGe syndrome. Here, we report clinical and molecular findings in Japanese patients. PATIENTS We studied a 46,XX patient aged 8·5 years (case 1) and two 46,XY patients aged 16·5 and 15·0 years (cases 2 and 3). RESULTS Clinical studies revealed not only IMAGe syndrome-compatible phenotypes in cases 1-3, but also hitherto undescribed findings including relative macrocephaly and apparently normal pituitary-gonadal endocrine function in cases 1-3, familial glucocorticoid deficiency (FGD)-like adrenal phenotype and the history of oligohydramnios in case 2, and arachnodactyly in case 3. Sequence analysis of CDKN1C, pyrosequencing-based methylation analysis of KvDMR1 and high-density oligonucleotide array comparative genome hybridization analysis for chromosome 11p15.5 were performed, showing an identical de novo and maternally inherited CDKN1C gain-of-function mutation (p.Asp274Asn) in cases 1 and 2, respectively, and no demonstrable abnormality in case 3. CONCLUSIONS The results of cases 1 and 2 with CDKN1C mutation would argue the following: [1] relative macrocephaly is consistent with maternal expression of CDKN1C in most tissues and biparental expression of CDKN1C in the foetal brain; [2] FGD-like phenotype can result from CDKN1C mutation; and [3] genital abnormalities may primarily be ascribed to placental dysfunction. Furthermore, lack of CDKN1C mutation in case 3 implies genetic heterogeneity in IMAGe syndrome.
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Affiliation(s)
- Fumiko Kato
- Department of Pediatrics, Hamamatsu University School of Medicine, Hamamatsu, Japan
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Nihei H, Tada H, Naruse Y, Izawa M, Kato M, Okuno H, Nakamura A, Ishizu K, Hamajima T, Tajima T. Polyarthritis caused by methimazole in two Japanese patients with graves' disease. J Clin Res Pediatr Endocrinol 2013; 5:270-2. [PMID: 24379039 PMCID: PMC3890228 DOI: 10.4274/jcrpe.1055] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
In many countries, methimazole (MMI) therapy is the first-line treatment in children with Graves' disease (GD). The rate of side effects of antithyroid drugs (ATDs) in children has been reported to range between 6% and 35%. Of these side effects, polyarthritis is uncommon but serious, and can also develop as a part of the antineutrophil cytoplasmic antibody-associated vasculitis that is induced by ATDs. Here, we describe two GD girl patients aged 15 years and 11 years who developed polyarthritis. The onset of polyarthritis in these patients was 24 days and 28 days after the initiation of MMI therapy, respectively. MMI was suspected of causing the polyarthritis in the two patients and was withdrawn. The symptoms of polyarthritis disappeared rapidly following cessation of treatment. Subsequently, one patient was treated with 131I therapy and the other patient was subjected to thyroidectomy. Although it rarely occurs in pediatric GD patients, severe polyarthritis is a serious side effect of MMI and is an indication for prompt cessation of treatment.
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Affiliation(s)
- Hiroko Nihei
- Hokkaido University School of Medicine, Department of Pediatrics, Sapporo, Japan. E-mail:
| | - Hidenori Tada
- Aichi Children’s Health and Medical Center, Department of Pediatric Endocrinology and Metabolism, Osakada, Morioka-cho, Obu, Japan
| | - Yuki Naruse
- Aichi Children’s Health and Medical Center, Department of Pediatric Endocrinology and Metabolism, Osakada, Morioka-cho, Obu, Japan
| | - Masako Izawa
- Aichi Children’s Health and Medical Center, Department of Pediatric Endocrinology and Metabolism, Osakada, Morioka-cho, Obu, Japan
| | - Manji Kato
- Kami-Iida Daiichi General Hospital, Department of Surgery, Kita-ku, Kamiiida Kita-Machi, Nagoya, Japan
| | - Hiroaki Okuno
- Kuchan Kosei Hospital, Department of Pediatrics, Kuchan-Cyo, Hokkaido, Japan
| | - Akie Nakamura
- Hokkaido University School of Medicine, Department of Pediatrics, Sapporo, Japan
| | - Katsura Ishizu
- Hokkaido University School of Medicine, Department of Pediatrics, Sapporo, Japan
| | - Takashi Hamajima
- Aichi Children’s Health and Medical Center, Department of Pediatric Endocrinology and Metabolism, Osakada, Morioka-cho, Obu, Japan
| | - Toshihiro Tajima
- Hokkaido University School of Medicine, Department of Pediatrics, Sapporo, Japan
,* Address for Correspondence: MD, Hokkaido University School of Medicine, Department of Pediatrics, Sapporo, Japan Phone: +81 11 706 5954 E-mail:
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22
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Maeda N, Hamajima T, Yambe Y, Sekimizu M, Horibe K. [Analysis of thyroid lesions in childhood recipients after hematopoietic stem cell transplantation]. Rinsho Ketsueki 2013; 54:263-268. [PMID: 23676640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We performed a physical examination and ultrasonography of the thyroid gland in 24 patients who had received hematopoietic stem cell transplantation with a total-body irradiation (TBI)-containing regimen during childhood. When ultrasonography revealed thyroid nodules larger than 1 cm in diameter, fine-needle aspiration biopsies were performed. Of 5 patients with palpable masses and thyroid nodules larger than 1 cm, adenomatous goiter was diagnosed in 4 cases and thyroid cancer in 1. Of the remaining 19 patients in whom no palpable mass was detected in the physical examination, 5 had thyroid nodules (including 1 adenomatous goiter), 6 had cystic lesions, and 8 exhibited no abnormalities on ultrasonography. No significant differences in sex, age at transplantation, interval between transplantation and evaluation, primary disease, preconditioning regimen, status at transplantation, stem cell source, chronic graft-versus-host disease, hypogonadism, or hypothyroidism were observed between patients with and without nodules. Individuals who received hematopoietic stem cell transplantation with a TBI-containing regimen are at risk of secondary thyroid cancer due to radiotherapy and require regular clinical evaluations of the thyroid gland by palpation, and ultrasonography should be incorporated into these checkups.
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Affiliation(s)
- Naoko Maeda
- Department of Pediatrics, National Hospital Organization Nagoya Medical Center, Japan
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23
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Hatta Y, Nakamura A, Hara S, Kamijo T, Iwata J, Hamajima T, Abe M, Okada M, Ushio M, Tsuyuki K, Tajima T. Clinical and molecular analysis of six Japanese patients with a renal form of pseudohypoaldosteronism type 1. Endocr J 2013. [PMID: 23197115 DOI: 10.1507/endocrj.ej12-0330] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [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: 11/23/2022] Open
Abstract
Pseudohypoaldosteronism type 1 (PHA1) is a rare condition characterized by neonatal salt loss with elevated plasma aldosterone and renin levels. Two types of PHA1 have been described: an autosomal recessive systemic form and an autosomal dominant renal form, in which the target organ defect is confined to the renal tubules. The dominant renal form of PHA1 is caused by heterozygous mutations in the NR3C2 gene, which encodes the mineralocorticoid receptor (MR). We determined clinical and biochemical parameters in two familial and four sporadic Japanese patient and analyzed the status of the NR3C2 gene. Failure to thrive was noted in five of the six patients. In one of the familial cases, the mother had an episode of failure to thrive when she was a toddler, but received no medical treatment. NaCl supplementation was discontinued in four of the six patients after they reached one year of age and they have grown normally thereafter. However, in one patient, 9 g/day of salt has been required to maintain serum Na concentration after 1 year of age. Analysis of NR3C2 identified three novel mutations [c. C1951T (p.R651X), c.304_305delGC (p.A102fsX103), c.del 603A (p.T201fsX34)] and one previously reported mutation [c.A2839G (p.947X)]. p.R651X was identified in one familial case and one unrelated sporadic patient. The patient who has been supplemented with large amount of salt was heterozygous for c.del 603A in exon 2. In conclusion, our study expands the spectrum of phenotypes, and characterized mutations of NR3C2 in the renal form of PHA1.
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Affiliation(s)
- Yoriko Hatta
- Department of Pediatrics, Tosei General Hospital, Seto 489-0065, Japan
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24
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Yamamura T, Hikita J, Bleakley M, Hirosawa T, Sato-Otsubo A, Torikai H, Hamajima T, Nannya Y, Demachi-Okamura A, Maruya E, Saji H, Yamamoto Y, Takahashi T, Emi N, Morishima Y, Kodera Y, Kuzushima K, Riddell SR, Ogawa S, Akatsuka Y. HapMap SNP Scanner: an online program to mine SNPs responsible for cell phenotype. ACTA ACUST UNITED AC 2012; 80:119-25. [PMID: 22568758 DOI: 10.1111/j.1399-0039.2012.01883.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Minor histocompatibility (H) antigens are targets of graft-vs-host disease and graft-vs-tumor responses after human leukocyte antigen matched allogeneic hematopoietic stem cell transplantation. Recently, we reported a strategy for genetic mapping of linkage disequilibrium blocks that encoded novel minor H antigens using the large dataset from the International HapMap Project combined with conventional immunologic assays to assess recognition of HapMap B-lymphoid cell line by minor H antigen-specific T cells. In this study, we have constructed and provide an online interactive program and demonstrate its utility for searching for single-nucleotide polymorphisms (SNPs) responsible for minor H antigen generation. The website is available as 'HapMap SNP Scanner', and can incorporate T-cell recognition and other data with genotyping datasets from CEU, JPT, CHB, and YRI to provide a list of candidate SNPs that correlate with observed phenotypes. This method should substantially facilitate discovery of novel SNPs responsible for minor H antigens and be applicable for assaying of other specific cell phenotypes (e.g. drug sensitivity) to identify individuals who may benefit from SNP-based customized therapies.
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Affiliation(s)
- T Yamamura
- Division of Immunology, Aichi Cancer Center Research Center, Nagoya, Aichi, Japan
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25
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Hamajima T, Mushimoto Y, Kobayashi H, Saito Y, Onigata K. Novel compound heterozygous mutations in the SBP2 gene: characteristic clinical manifestations and the implications of GH and triiodothyronine in longitudinal bone growth and maturation. Eur J Endocrinol 2012; 166:757-64. [PMID: 22247018 DOI: 10.1530/eje-11-0812] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [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: 02/05/2023]
Abstract
OBJECTIVE Mutations in the selenocysteine insertion sequence binding protein 2 gene (SECISBP2 also known as SBP2) lead to a multisystemic disorder. Our objectives are to examine the clinical manifestations of the present patient and evaluate the effects of GH and triiodothyronine (T(3)) for longitudinal bone growth and maturation. METHODS A Japanese boy presented with unusual thyroid function tests (normal or slightly elevated TSH, low-normal or slightly decreased free T(3) (FT(3)), and elevated free thyroxine (FT(4))), short stature without GH deficiency, and delayed bone maturation. The entire coding region of the patient's SBP2 was analyzed. GH treatment was initiated when the patient was 4 years old, and combination therapy with GH plus T(3) was started when the patient was 10 years old. We monitored the patient's height and bone age until he was 11 years old. RESULTS The patient showed typical symptoms of SBP2 deficiency, and novel compound heterozygous mutations were identified in SBP2 (p.M515fsX563/p.Q79X). Six years of GH monotherapy improved the patient's height s.d. from -3.4 to -1.7 without accelerating bone maturation, whereas 6 months of T(3) treatment combined with GH almost normalized the thyroid function tests and improved both longitudinal bone growth and maturation. CONCLUSIONS In the growth plate, GH may compensate for decreased local T(3) effects on longitudinal bone growth; however, GH does not appear to compensate for the effects of T(3) on bone maturation. We believe that the present case has important implications for understanding the mechanism of thyroid hormone and GH on longitudinal bone growth and maturation.
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Affiliation(s)
- Takashi Hamajima
- Department of Pediatric Endocrinology and Metabolism, Aichi Children's Health and Medical Center, 1-2 Osakada, Morioka-cho, Obu, Aichi, Japan.
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26
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Yamamura T, Bleakley M, Hikita J, Matsubara A, Hamajima T, Nannya Y, Takahashi T, Emi N, Morishima Y, Kodera Y, Kuzushima K, Riddell S, Ogawa S, Akatsuka Y. Development of an Online Tool to Scan Single Nucleotide Polymorphisms for Identification of Novel Minor Histocompatibility Antigens. Biol Blood Marrow Transplant 2011. [DOI: 10.1016/j.bbmt.2010.12.545] [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: 11/28/2022]
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27
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Hamajima T, Maruwaka K, Homma K, Matsuo K, Fujieda K, Hasegawa T. Unilateral adrenalectomy can be an alternative therapy for infantile onset Cushing' s syndrome caused by ACTH-independent macronodular adrenal hyperplasia with McCune-Albright syndrome. Endocr J 2010; 57:819-24. [PMID: 20543510 DOI: 10.1507/endocrj.k10e-003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [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: 11/23/2022] Open
Abstract
We report herein the case of a 1-year-old boy with McCune-Albright syndrome (MAS) who presented with infantile-onset Cushing' s syndrome caused by ACTH independent macronodular adrenal hyperplasia (AIMAH). Abdominal CT, MRI, and adrenal scintigraphy with (131)I-adosterol identified bilateral adrenal involvement with the left adrenal gland being larger and functionally more active. Unilateral adrenalectomy of the left gland was performed and ameliorated many clinical symptoms, such as Cushingoid appearance and height restriction, and it also normalized many endocrinological data, such as diurnal rhythms of ACTH and cortisol, ACTH and cortisol responses to CRH, and urinary 24 hr free cortisol. Glucocorticoid was replaced for the first 1 year and 6 months after the operation. One adrenal crisis episode occurred at 3 weeks after the operation, but none have occurred since. These results suggest that unilateral adrenalectomy of the larger gland can be an alternative therapy for infantile onset Cushing' s syndrome caused by AIMAH with MAS, when asymmetric involvement is evident and the smaller gland is not markedly enlarged.
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Affiliation(s)
- Takashi Hamajima
- Department of Pediatric Endocrinology and Metabolism, Aichi Children's Health and Medical Center, Obu, Japan.
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Yagai T, Sato H, Tsuda M, Hamajima T, Nunoya Y, Takahashi Y, Okuno K. Coupling loss with long time constants due to large displacement of strands in a large CIC conductor. Fusion Engineering and Design 2006. [DOI: 10.1016/j.fusengdes.2006.07.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Homma K, Hasegawa T, Takeshita E, Watanabe K, Anzo M, Toyoura T, Jinno K, Ohashi T, Hamajima T, Takahashi Y, Takahashi T, Matsuo N. Elevated urine pregnanetriolone definitively establishes the diagnosis of classical 21-hydroxylase deficiency in term and preterm neonates. J Clin Endocrinol Metab 2004; 89:6087-91. [PMID: 15579762 DOI: 10.1210/jc.2004-0473] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [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: 02/12/2023]
Abstract
Elevated blood 17alpha-hydroxyprogesterone (17OHP) level, although widely used for the screening of classical 21-hydroxylase deficiency (21OHD) in neonates, has frequently been found in some neonates without classical 21OHD, particularly preterm neonates. We studied the diagnostic value of the metabolite of 21-deoxycortisol (pregnanetriolone, Ptl) and the metabolite of 17OHP (pregnanetriol, PT) in identifying 21OHD in term and preterm neonates with elevated blood 17OHP on the newborn screening. Spot urine samples from 59 classical 21OHD neonates (50 term, 9 preterm), 83 neonates without 21OHD having transiently elevated blood 17OHP (non-21OHD) (49 term, 34 preterm), and 62 control term neonates were studied using gas chromatography/mass spectrometry in selected ion monitoring analysis for Ptl, PT, 5beta-tetrahydrocortisone (betaTHE), and 5alpha-tetrahydrocortisone (alphaTHE). Ptl and Ptl/(betaTHE+alphaTHE) showed no overlap between 21OHD and non-21OHD, and 21OHD and controls, respectively (Ptl was 0.46-124 mg/g creatinine in 21OHD term, 0.80-26.9 mg/g creatinine in 21OHD preterm, < or = 0.08 mg/g creatinine in non-21OHD term, < or =0.06 mg/g creatinine in non-21OHD preterm, and < or = 0.07 mg/g creatinine in controls). PT and PT/(betaTHE+alphaTHE) showed significant overlap between 21OHD and non-21OHD. The above data indicate that spot urine Ptl is a highly specific marker of 21OHD with a cutoff value of 0.1 mg/g creatinine, yielding an unambiguous separation between 21OHD and non-21OHD in term and preterm neonates.
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Affiliation(s)
- Keiko Homma
- Department of Laboratory Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan.
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30
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Hamajima T, Ohki S, Imamine H, Mizuno H, Homma K, Hasegawa T. A Case of a Preterm Infant with 21-Hydroxylase Deficiency: Implications of the Biochemical Diagnosis with Urinary Pregnanetriolone by Gas Chromatography/Mass Spectrometry in Selected Ion Monitoring (GCMS-SIM). Clin Pediatr Endocrinol 2004; 13:65-70. [PMID: 24790300 PMCID: PMC4004916 DOI: 10.1297/cpe.13.65] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2003] [Accepted: 04/26/2004] [Indexed: 12/02/2022] Open
Abstract
The biochemical diagnosis of 21-hydroxylase deficiency (21-OHD) is difficult in
preterm infants. To date, no marker for the biochemical diagnosis of 21-OHD has been
found. Seventeen α-hydroxyprogesterone (17-OHP), is not useful because of interference by
delta 5 steroids from the fetal adrenal cortex. A 5-d-old female infant, born at 31 wk of
gestation, was suspected of having 21-OHD based on physical findings (mild clitoromegaly,
pigmentation of the tongue and gingiva) as well as laboratory data (17-OHP >93.5 ng/ml
by ELISA 7 prime extractive method in filter paper-dried blood spot and 718.3 ng/ml by RIA
after high performance liquid chromatography extraction in serum; plasma ACTH 690 pg/ml;
and serum testosterone 3,169 ng/dl). We examined her urinary steroid profiles by gas
chromatography/mass spectrometry in selected ion monitoring (GCMS-SIM) at 8 d of age. The
pregnanetriolone (Ptl) level was noticeably high (0.80 mg/g creatinine), which was
strongly suggestive of 21-OHD. Gene analysis of CYP21A2 showed compound
heterozygosity, one allele having a cluster mutation in exon 6 and the other having a
large deletion including CYP21A2, confirming the diagnosis of 21-OHD.
This case suggested that, in preterm infants, urinary Ptl by GCMS-SIM can be useful for
the biochemical diagnosis of 21-OHD.
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Affiliation(s)
- Takashi Hamajima
- Department of Pediatrics, Seirei Hamamatsu Hospital, Hamamatsu, Japan ; Department of Endocrinology, Aichi Children's Health and Medical Center, Aichi, Japan
| | - Shigeru Ohki
- Department of Pediatrics, Seirei Hamamatsu Hospital, Hamamatsu, Japan
| | - Hiroki Imamine
- Department of Pediatrics, Neonatology and Congenital Disorders, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Haruo Mizuno
- Department of Pediatrics, Neonatology and Congenital Disorders, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Keiko Homma
- Department of Laboratory Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Tomonobu Hasegawa
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
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Affiliation(s)
- T Matsubayashi
- Department of Pediatrics, Seirei Hamamatsu General Hospital, Hamamatsu, Japan.
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Ogata F, Hamajima T, Kambara T, Gondaira KI. The spin-polarised electronic band structure of chromium spinels. II. CuCr2Se4and CuCr2Te4. ACTA ACUST UNITED AC 2000. [DOI: 10.1088/0022-3719/15/16/009] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Horikawa JI, Hamajima T, Ogata F, Kambara T, Gondaira KI. The spin polarised electronic band structure of chromium spinels: I. CuCr2S4. ACTA ACUST UNITED AC 2000. [DOI: 10.1088/0022-3719/15/12/011] [Citation(s) in RCA: 20] [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] [Indexed: 11/12/2022]
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Ushigome H, Yoshimura N, Okamoto M, Najima H, Hamajima T, Nakai I, Oka T. Two cases of tacrolimus-induced alopecia following kidney transplantation. Transplant Proc 1999; 31:2885-6. [PMID: 10578326 DOI: 10.1016/s0041-1345(99)00602-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- H Ushigome
- Second Department of Surgery, Kyoto Prefectural University of Medicine, Japan
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Shimada M, Uchida H, Kasahara T, Fuji K, Ogawa Y, Yoshida H, Hamajima T, Matsuda N, Ikeuchi T, Kai Y, Hiramori M, Hoshino M, Inoue K, Higaki Y. [Clinical study on chlormadinone acetate alone followed by combination with LH-RH analogue for prostatic cancer: effects on lipid metabolism]. Hinyokika Kiyo 1998; 44:525-32. [PMID: 9752613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Twenty-four previously untreated patients with a diagnosis of prostatic cancer were treated with chlormadinone acetate (CMA) alone (100 mg/day) for 4 weeks, and luteinizing hormone-releasing hormone analogue (LH-RHa) was added for the next 24 weeks. Marked decreases in blood LH, testosterone (T), prostate specific antigen (PSA), gamma-seminoprotein (gamma-Sm), and prostatic acid phosphatase (PAP) were observed after a single dose of CMA. T levels were significantly increased 3 days after the initial dose of LH-RHa, and did not return to the pretreatment level. There were no significant increases in any of the markers, nor were there any flare-up cases. Triglyceride levels, which were slightly elevated before the start of treatment, were significantly decreased 24 weeks after the completion of combined therapy. PSA was evaluated as partial response (PR) or better in 86.7% of the patients. Overall evaluation showed PR or better in 75.0% of the patients. These findings suggest that prior administration of CMA followed by combined administration with LH-RHa is useful in the treatment of prostatic cancer. No negative effects on lipid metabolism were observed at any time during the treatment period.
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Affiliation(s)
- M Shimada
- Department of Urology, Showa University, School of Medicine
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36
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Yasumura T, Ohmori Y, Aikawa I, Arakawa K, Yoshimura N, Nakai I, Matsui S, Hamajima T, Yoshida T, Nakajima H. The successful outcome of second kidney transplantation and its contributing factors. Jpn J Surg 1989; 19:163-70. [PMID: 2657150 DOI: 10.1007/bf02471580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Fourteen out of 301 patients who underwent allogeneic kidney transplantations, between April, 1970 and December, 1987, received second kidney allografts, including 4 living and 10 cadaveric grafts. The survival of the second grafts transplanted in those 14 recipients was superior to that of the first grafts transplanted in the other 287 recipients. Furthermore, the survival of the second grafts from 4 years onwards was significantly higher than that of the first grafts, in spite of a higher population of cadaveric grafts used in the second transplantation than in the first. Although it was impossible to determine the main factor which induced the improved survival of the second grafts when compared with that of the first, a combination of beneficial factors, such as a high rate of living related transplantation resulting in long-term graft survival of the first transplantation, the administration of immunosuppressive drugs during the period of re-hemodialysis and blood transfusion prior to the second transplantation, was considered to be the reason why successful second graft survival was achieved.
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Affiliation(s)
- T Yasumura
- Second Department of Surgery, Kyoto Prefectural University of Medicine, Japan
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37
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Abstract
The effects of renal transplantation on serum concentrations of 3-carboxy-4-methyl-5-propyl-2-furanpropanoic acid (CMPF) and indole-3-acetic acid (IAA), which are endogenous ligands retained in uremic serum, and on phenytoin binding to serum protein were investigated. IAA, a weakly bound ligand, was rapidly excreted by the transplanted kidney during the first one to three days after renal transplantation, but CMPF, a strongly bound ligand, was slowly excreted. The binding defect of phenytoin was partially corrected by transplantation during the period of study. The results suggested that the prolonged drug binding defect observed despite successful renal transplantation is caused by a slower decrease of strongly bound ligands such as CMPF retained in uremic serum; hypoalbuminemia, usually observed after transplantation, may also contribute to this phenomenon.
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Affiliation(s)
- H Mabuchi
- Department of Internal Medicine and Nephrology, Nishijin Hospital, Kyoto, Japan
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38
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Yasumura T, Matsui S, Hamajima T, Nagashima K, Yamagishi H, Aikawa I, Oka T, Nakae T, Shimada N. Infiltrating ductal carcinoma developing within cystosarcoma phyllodes--a case report. Jpn J Surg 1988; 18:326-9. [PMID: 2841520 DOI: 10.1007/bf02471450] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Malignancy in cystosarcoma phyllodes is uncommon and often confined to the stromal element. An extremely rare case of infiltrating ductal carcinoma developing within the stroma of cystosarcoma phyllodes is reported herein. A breast tumor with a diameter of 15 cm, which was diagnosed as cystosarcoma phyllodes, was excised from the right breast of a 47-year old woman. The histopathological examination revealed that hyperplastic ductal epithelial cells with dark cytoplasm and enlarged hyperchromatic nuclei were infiltrating the stroma. Thus, a diagnosis of ductal carcinoma within cystosarcoma was made. Subsequently, a standard radical mastectomy was performed. No recurrence or metastasis has been observed over the post-operative period of 5 years and 6 months.
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Affiliation(s)
- T Yasumura
- Second Department of Surgery, Kyoto Prefectural University of Medicine, Japan
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39
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Yasumura T, Oka T, Ohmori Y, Aikawa I, Suzuki S, Nakaji K, Yoshimura N, Nakai I, Matsui S, Hamajima T. Results of kidney transplantation in 25 pediatric patients. Jpn J Surg 1987; 17:334-41. [PMID: 3323589 DOI: 10.1007/bf02470631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Outcome, long-term prognosis, growth activity and rehabilitation after kidney transplantation were studied in 25 pediatric patients transplanted with a kidney graft from one-haplotype identical parent. Excellent patient and graft survival with low incidences of acute rejection or serious complications could be achieved in this population, as compared with the results of adult recipients. Growth retardations in height and weight were observed in these patients before transplantation, and were significantly correlated with the duration of low or no kidney function. In 12 recipients who were transplanted at ages of younger than 15 years and followed up over two years, a dramatic increase in weight appeared within one year after transplantation and a greater increase in height was exhibited in the second and third year than in the first. Increase in height was significantly greater in those children transplanted at ages of younger than 10 years than in those transplanted at ages of older than 11 years. Catch-up growth was observed in one-third of these children. Retrospectively, there was no difference in the doses of prednisolone given between the two groups of patients with, and without catch-up growth, but the incidence of acute rejection was higher in the group without catch-up growth. Currently, 18 recipients have functioning grafts and 16 (88.9 per cent) of them are in full-time school or working. From these results it is concluded that kidney transplantation is the first feasible manoeuvre for those children with chronic renal failure and it should be performed as soon an possible in order to preserve their growth activity.
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Affiliation(s)
- T Yasumura
- Second Department of Surgery, Kyoto Prefectural University of Medicine, Japan
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40
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Konishi M, Nobuoka W, Asazuma S, Iwamoto T, Hamajima T, Otabe E, Nakanoin H. [A case of right juxtaposition of the atrial appendages, without cono-truncal anomaly]. Kyobu Geka 1985; 38:307-11. [PMID: 3999503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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41
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Kikkawa Y, Kamimura K, Hamajima T, Sekiguchi T, Kawai T. Thymic alymphoplasia with hyper-IgE-globulinemia. Pediatrics 1973; 51:690-6. [PMID: 4572544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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