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Pelliciari S, Bodet-Lefèvre S, Fenyk S, Stevens D, Winterhalter C, Schramm FD, Pintar S, Burnham DR, Merces G, Richardson TT, Tashiro Y, Hubbard J, Yardimci H, Ilangovan A, Murray H. The bacterial replication origin BUS promotes nucleobase capture. Nat Commun 2023; 14:8339. [PMID: 38097584 PMCID: PMC10721633 DOI: 10.1038/s41467-023-43823-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 11/21/2023] [Indexed: 12/17/2023] Open
Abstract
Genome duplication is essential for the proliferation of cellular life and this process is generally initiated by dedicated replication proteins at chromosome origins. In bacteria, DNA replication is initiated by the ubiquitous DnaA protein, which assembles into an oligomeric complex at the chromosome origin (oriC) that engages both double-stranded DNA (dsDNA) and single-stranded DNA (ssDNA) to promote DNA duplex opening. However, the mechanism of DnaA specifically opening a replication origin was unknown. Here we show that Bacillus subtilis DnaAATP assembles into a continuous oligomer at the site of DNA melting, extending from a dsDNA anchor to engage a single DNA strand. Within this complex, two nucleobases of each ssDNA binding motif (DnaA-trio) are captured within a dinucleotide binding pocket created by adjacent DnaA proteins. These results provide a molecular basis for DnaA specifically engaging the conserved sequence elements within the bacterial chromosome origin basal unwinding system (BUS).
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Affiliation(s)
- Simone Pelliciari
- Centre for Bacterial Cell Biology, Biosciences Institute, Newcastle University, Newcastle Upon Tyne, NE2 4AX, UK
| | - Salomé Bodet-Lefèvre
- Centre for Molecular Cell Biology, School of Biological and Behavioural Sciences, Queen Mary University of London, Newark Street, London, E1 2AT, UK
| | - Stepan Fenyk
- Centre for Bacterial Cell Biology, Biosciences Institute, Newcastle University, Newcastle Upon Tyne, NE2 4AX, UK
| | - Daniel Stevens
- Centre for Bacterial Cell Biology, Biosciences Institute, Newcastle University, Newcastle Upon Tyne, NE2 4AX, UK
| | - Charles Winterhalter
- Centre for Bacterial Cell Biology, Biosciences Institute, Newcastle University, Newcastle Upon Tyne, NE2 4AX, UK
| | - Frederic D Schramm
- Centre for Bacterial Cell Biology, Biosciences Institute, Newcastle University, Newcastle Upon Tyne, NE2 4AX, UK
| | - Sara Pintar
- Centre for Bacterial Cell Biology, Biosciences Institute, Newcastle University, Newcastle Upon Tyne, NE2 4AX, UK
| | - Daniel R Burnham
- The Francis Crick Institute, 1 Midland Road, London, NW1 1AT, UK
| | - George Merces
- Centre for Bacterial Cell Biology, Biosciences Institute, Newcastle University, Newcastle Upon Tyne, NE2 4AX, UK
| | - Tomas T Richardson
- Centre for Bacterial Cell Biology, Biosciences Institute, Newcastle University, Newcastle Upon Tyne, NE2 4AX, UK
| | - Yumiko Tashiro
- Centre for Molecular Cell Biology, School of Biological and Behavioural Sciences, Queen Mary University of London, Newark Street, London, E1 2AT, UK
| | - Julia Hubbard
- Centre for Bacterial Cell Biology, Biosciences Institute, Newcastle University, Newcastle Upon Tyne, NE2 4AX, UK
| | - Hasan Yardimci
- The Francis Crick Institute, 1 Midland Road, London, NW1 1AT, UK
| | - Aravindan Ilangovan
- Centre for Molecular Cell Biology, School of Biological and Behavioural Sciences, Queen Mary University of London, Newark Street, London, E1 2AT, UK.
| | - Heath Murray
- Centre for Bacterial Cell Biology, Biosciences Institute, Newcastle University, Newcastle Upon Tyne, NE2 4AX, UK.
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Soda T, Tashiro Y, Koike S, Ikeuchi R, Okada T. Evaluation of incidence, predictive factors and treatment considerations for asymptomatic genitourinary granulomas after intravesical bacillus Calmette-Guérin therapy. Actas Urol Esp 2023; 47:317-326. [PMID: 37272323 DOI: 10.1016/j.acuroe.2022.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 08/08/2022] [Accepted: 08/10/2022] [Indexed: 06/06/2023]
Abstract
INTRODUCTION AND OBJECTIVES Although the complications of intravesical BCG treatment are well described, asymptomatic genitourinary granulomas after BCG therapy have rarely been reported and management strategy for these conditions remains controversial. The objective of this study is to evaluate the incidence rate of asymptomatic genitourinary granuloma formation mimicking bladder cancer recurrence after intravesical bacillus Calmette-Guérin (BCG) therapy and to identify the diagnostic and treatment strategies according to patient conditions. PATIENTS AND METHODS A retrospective review was conducted on 162 patients who underwent intravesical BCG therapy. For patients who developed granulomas, we evaluated the time interval between BCG instillation and the development of granuloma, the presence of acid-fast bacteria on pathology specimens, culture/polymerase chain reaction results, management strategies for the lesions, and clinical outcomes. RESULTS Asymptomatic genitourinary masses developed in 14 patients, of whom 5 underwent histological examinations and all were confirmed to have granulomatous inflammation. The affected organs included the kidney, bladder, prostate, and penis. While four of the five patients did not receive treatment for their granulomas, one patient was administered antituberculous medication to prevent worsening of the lesion during the perioperative period of the scheduled cystoprostatectomy. None of the patients experienced worsening or recurrence of granulomatous lesions. Patients who developed asymptomatic masses (n = 14) were significantly younger than those who did not (p = 0.0076) and multivariate analysis also showed that younger age was independently associated with the development of clinically suspicious lesions (p = 0.032); however, none of the parameters were associated with histologically confirmed granuloma formation. CONCLUSIONS Genitourinary granulomas mimicking recurrence of carcinoma may develop in nearly 10% of patients after intravesical BCG therapy. Most patients can be managed without potentially toxic antituberculosis therapy.
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Affiliation(s)
- T Soda
- Department of Urology, Tazuke Kofukai Medical Research Institute Kitano Hospital, Osaka, Japan.
| | - Y Tashiro
- Department of Urology, Tazuke Kofukai Medical Research Institute Kitano Hospital, Osaka, Japan
| | - S Koike
- Department of Urology, Tazuke Kofukai Medical Research Institute Kitano Hospital, Osaka, Japan
| | - R Ikeuchi
- Department of Urology, Tazuke Kofukai Medical Research Institute Kitano Hospital, Osaka, Japan
| | - T Okada
- Department of Urology, Tazuke Kofukai Medical Research Institute Kitano Hospital, Osaka, Japan
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Soda T, Tashiro Y, Koike S, Ikeuchi R, Okada T. Evaluación de la incidencia, factores predictivos y consideraciones sobre el tratamiento de los granulomas genitourinarios asintomáticos después de la terapia intravesical con bacilo de Calmette-Guérin. Actas Urol Esp 2022. [DOI: 10.1016/j.acuro.2022.08.001] [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: 11/05/2022]
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Asada-Utsugi M, Uemura K, Kubota M, Noda Y, Tashiro Y, Uemura TM, Yamakado H, Urushitani M, Takahashi R, Hattori S, Miyakawa T, Ageta-Ishihara N, Kobayashi K, Kinoshita M, Kinoshita A. Mice with cleavage-resistant N-cadherin exhibit synapse anomaly in the hippocampus and outperformance in spatial learning tasks. Mol Brain 2021; 14:23. [PMID: 33494786 PMCID: PMC7831172 DOI: 10.1186/s13041-021-00738-1] [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] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 01/16/2021] [Indexed: 11/30/2022] Open
Abstract
N-cadherin is a homophilic cell adhesion molecule that stabilizes excitatory synapses, by connecting pre- and post-synaptic termini. Upon NMDA receptor (NMDAR) activation by glutamate, membrane-proximal domains of N-cadherin are cleaved serially by a-disintegrin-and-metalloprotease 10 (ADAM10) and then presenilin 1(PS1, catalytic subunit of the γ-secretase complex). To assess the physiological significance of the initial N-cadherin cleavage, we engineer the mouse genome to create a knock-in allele with tandem missense mutations in the mouse N-cadherin/Cadherin-2 gene (Cdh2 R714G, I715D, or GD) that confers resistance on proteolysis by ADAM10 (GD mice). GD mice showed a better performance in the radial maze test, with significantly less revisiting errors after intervals of 30 and 300 s than WT, and a tendency for enhanced freezing in fear conditioning. Interestingly, GD mice reveal higher complexity in the tufts of thorny excrescence in the CA3 region of the hippocampus. Fine morphometry with serial section transmission electron microscopy (ssTEM) and three-dimensional (3D) reconstruction reveals significantly higher synaptic density, significantly smaller PSD area, and normal dendritic spine volume in GD mice. This knock-in mouse has provided in vivo evidence that ADAM10-mediated cleavage is a critical step in N-cadherin shedding and degradation and involved in the structure and function of glutamatergic synapses, which affect the memory function.
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Affiliation(s)
- M. Asada-Utsugi
- School of Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Department of Neurology, Shiga University of Medical Science, Seta-Tsukinowa-Cho Otsu, Shiga, 520-2192 Japan
| | - K. Uemura
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - M. Kubota
- School of Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Y. Noda
- School of Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Y. Tashiro
- School of Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - T. M. Uemura
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - H. Yamakado
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - M. Urushitani
- Department of Neurology, Shiga University of Medical Science, Seta-Tsukinowa-Cho Otsu, Shiga, 520-2192 Japan
| | - R. Takahashi
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - S. Hattori
- Division of Systems Medical Science, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, 470-1192 Japan
| | - T. Miyakawa
- Division of Systems Medical Science, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, 470-1192 Japan
| | - N. Ageta-Ishihara
- Division of Biological Sciences, Department of Molecular Biology, Nagoya University Graduate School of Science, Nagoya, 464-8602 Japan
| | - K. Kobayashi
- Department of Pharmacology, Graduate School of Medicine, Nippon Medical School, Tokyo, 113-8602 Japan
| | - M. Kinoshita
- Division of Biological Sciences, Department of Molecular Biology, Nagoya University Graduate School of Science, Nagoya, 464-8602 Japan
| | - A. Kinoshita
- School of Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Tashiro Y, Murakami M, Fukoe Y, Lee Y, Lee M. Pubic osteomyelitis after transabdominal preperitoneal inguinal hernia repair. Hernia 2017; 21:813-815. [PMID: 28382458 DOI: 10.1007/s10029-017-1599-6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Accepted: 03/22/2017] [Indexed: 11/28/2022]
Affiliation(s)
- Y Tashiro
- Department of Gastroenterological Surgery, Shiroyama Hospital, 1 Iizuka-cho, Ota, Gunma, 373-0817, Japan. .,Department of General and Gastroenterological Surgery, Showa University School of Medicine, Tokyo, 142-8666, Japan.
| | - M Murakami
- Department of General and Gastroenterological Surgery, Showa University School of Medicine, Tokyo, 142-8666, Japan
| | - Y Fukoe
- Department of Gastroenterological Surgery, Shiroyama Hospital, 1 Iizuka-cho, Ota, Gunma, 373-0817, Japan
| | - Y Lee
- Department of Gastroenterological Surgery, Shiroyama Hospital, 1 Iizuka-cho, Ota, Gunma, 373-0817, Japan
| | - M Lee
- Department of Gastroenterological Surgery, Shiroyama Hospital, 1 Iizuka-cho, Ota, Gunma, 373-0817, Japan
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Tan J, Abdel-Rahman MA, Numaguchi M, Tashiro Y, Zendo T, Sakai K, Sonomoto K. Thermophilic Enterococcus faecium QU 50 enabled open repeated batch fermentation for l-lactic acid production from mixed sugars without carbon catabolite repression. RSC Adv 2017. [DOI: 10.1039/c7ra03176a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Thermophilic lactic acid bacterium enabled homo-l-lactic acid fermentation from hexose/pentose without carbon catabolite repression, and open repeated production by immobilization.
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Affiliation(s)
- J. Tan
- Laboratory of Microbial Technology
- Division of Systems Bioengineering
- Department of Bioscience and Biotechnology
- Faculty of Agriculture
- Graduate School
| | - M. A. Abdel-Rahman
- Laboratory of Microbial Technology
- Division of Systems Bioengineering
- Department of Bioscience and Biotechnology
- Faculty of Agriculture
- Graduate School
| | - M. Numaguchi
- Laboratory of Microbial Technology
- Division of Systems Bioengineering
- Department of Bioscience and Biotechnology
- Faculty of Agriculture
- Graduate School
| | - Y. Tashiro
- Laboratory of Soil and Environmental Microbiology
- Division of Systems Bioengineering
- Department of Bioscience and Biotechnology
- Faculty of Agriculture
- Graduate School
| | - T. Zendo
- Laboratory of Microbial Technology
- Division of Systems Bioengineering
- Department of Bioscience and Biotechnology
- Faculty of Agriculture
- Graduate School
| | - K. Sakai
- Laboratory of Soil and Environmental Microbiology
- Division of Systems Bioengineering
- Department of Bioscience and Biotechnology
- Faculty of Agriculture
- Graduate School
| | - K. Sonomoto
- Laboratory of Microbial Technology
- Division of Systems Bioengineering
- Department of Bioscience and Biotechnology
- Faculty of Agriculture
- Graduate School
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Suzuki N, Kitajima Y, Tashiro Y, Ono H, Ando R, Osana S, Nunomiya A, Nagatomi R, Takahashi R, Aoki M. Proteasomal proteolysis is indispensable for the maintenance of skeletal muscle and muscle stem cells. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Konno T, Broderick DF, Mezaki N, Isami A, Kaneda D, Tashiro Y, Tokutake T, Keegan BM, Woodruff BK, Miura T, Nozaki H, Nishizawa M, Onodera O, Wszolek ZK, Ikeuchi T. Diagnostic Value of Brain Calcifications in Adult-Onset Leukoencephalopathy with Axonal Spheroids and Pigmented Glia. AJNR Am J Neuroradiol 2016; 38:77-83. [PMID: 27633805 DOI: 10.3174/ajnr.a4938] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 07/20/2016] [Indexed: 11/07/2022]
Abstract
Adult-onset leukoencephalopathy with axonal spheroids and pigmented glia is a rare neurodegenerative disease resulting from mutations in the colony stimulating factor 1 receptor gene. Accurate diagnosis can be difficult because the associated clinical and MR imaging findings are nonspecific. We present 9 cases with intracranial calcifications distributed in 2 brain regions: the frontal white matter adjacent to the anterior horns of the lateral ventricles and the parietal subcortical white matter. Thin-section (1-mm) CT scans are particularly helpful in detection due to the small size of the calcifications. These calcifications had a symmetric "stepping stone appearance" in the frontal pericallosal regions, which was clearly visible on reconstructed sagittal CT images. Intrafamilial variability was seen in 2 of the families, and calcifications were seen at birth in a single individual. These characteristic calcification patterns may assist in making a correct diagnosis and may contribute to understanding of the pathogenesis of leukoencephalopathy.
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Affiliation(s)
- T Konno
- From the Departments of Neurology (T.K., Z.K.W.).,Departments of Neurology (T.K., N.M., A.I., T.T., T.M., M.N., O.O.)
| | - D F Broderick
- Radiology (D.F.B.), Mayo Clinic Florida, Jacksonville, Florida
| | - N Mezaki
- Departments of Neurology (T.K., N.M., A.I., T.T., T.M., M.N., O.O.)
| | - A Isami
- Departments of Neurology (T.K., N.M., A.I., T.T., T.M., M.N., O.O.)
| | - D Kaneda
- Department of Neurology (D.K.), Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan.,Department of Neurology (D.K.), Osaka Red Cross Hospital, Osaka, Japan
| | - Y Tashiro
- Department of Neurology (Y.T.), National Hospital Organization Mito Medical Center, Ibaraki, Japan
| | - T Tokutake
- Departments of Neurology (T.K., N.M., A.I., T.T., T.M., M.N., O.O.)
| | - B M Keegan
- Department of Neurology (B.M.K.), Mayo Clinic Rochester, Rochester, Minnesota
| | - B K Woodruff
- Department of Neurology (B.K.W.), Mayo Clinic Arizona, Scottsdale, Arizona
| | - T Miura
- Departments of Neurology (T.K., N.M., A.I., T.T., T.M., M.N., O.O.)
| | - H Nozaki
- Medical Technology (H.N.), School of Health Sciences Faculty of Medicine, Niigata University, Niigata, Japan
| | - M Nishizawa
- Departments of Neurology (T.K., N.M., A.I., T.T., T.M., M.N., O.O.)
| | - O Onodera
- Departments of Neurology (T.K., N.M., A.I., T.T., T.M., M.N., O.O.)
| | - Z K Wszolek
- From the Departments of Neurology (T.K., Z.K.W.)
| | - T Ikeuchi
- Molecular Genetics (T.I.), Brain Research Institute
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Morino S, Kajiwara Y, Nishiguchi S, Fukutani N, Tashiro Y, Yamada M, Yamashita M, Aoyama T, Ishihara M. The relationship between the daily step counts and low back pain during pregnancy. CLIN EXP OBSTET GYN 2016. [DOI: 10.12891/ceog2078.2016] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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10
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Morino S, Kajiwara Y, Ishihara M, Nishiguchi S, Fukutani N, Tashiro Y, Yamada M, Yamashita M, Aoyama T. The relationship between the daily step counts and low back pain during pregnancy. CLIN EXP OBSTET GYN 2016; 43:192-197. [PMID: 27132408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
PURPOSE To investigate the relationship between the change of daily step counts and low back pain (LBP) during pregnancy. Materials and METHODS Pregnant women at less than eight weeks of gestation (WG) were recruited. Daily step counts were measured with a pedometer. To assess LBP, the Oswestry disability index (ODI) score was recorded. Thirty-six individuals were divided into the LBP and non-LBP groups. The effect of step counts on LBP between the two groups was analyzed. RESULTS At 16-19 WG, step counts were not considerably changed in the non-LBP group but were significantly increased in the LBP group. At 24-27 and 32-35 WG, step counts were increased in the non-LBP group but were significantly decreased in the LBP group. CONCLUSIONS Acute increase of daily step counts in early pregnancy is a risk for LBP, and gradual increases of step counts after mid-pregnancy is recommended for women.
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Hidehiko S, Nishiguchi S, Fukutani N, Adachi D, Tashiro Y, Hotta T, Morino S, Nozaki Y, Hirata H, Yamaguchi M, Aoyama T. O-015: Health literacy is associated with frailty stage in community-dwelling elderly people. Eur Geriatr Med 2015. [DOI: 10.1016/s1878-7649(15)30029-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kuwashima U, Okazaki K, Tashiro Y, Mizu-Uchi H, Hamai S, Okamoto S, Murakami K, Iwamoto Y. Correction of coronal alignment correlates with reconstruction of joint height in unicompartmental knee arthroplasty. Bone Joint Res 2015. [PMID: 26261235 PMCID: PMC4672364 DOI: 10.1302/2046-3758.47.2000416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVES Because there have been no standard methods to determine pre-operatively the thickness of resection of the proximal tibia in unicompartmental knee arthroplasty (UKA), information about the relationship between the change of limb alignment and the joint line elevation would be useful for pre-operative planning. The purpose of this study was to clarify the correlation between the change of limb alignment and the change of joint line height at the medial compartment after UKA. METHODS A consecutive series of 42 medial UKAs was reviewed retrospectively. These patients were assessed radiographically both pre- and post-operatively with standing anteroposterior radiographs. The thickness of bone resection at the proximal tibia and the distal femur was measured radiographically. The relationship between the change of femorotibial angle (δFTA) and the change of joint line height, was analysed. RESULTS The mean pre- and post-operative FTA was 180.5° (172.2° to 184.8°) and 175.0° (168.5° to 178.9°), respectively. The mean δFTA was 5.5° (2.3° to 10.1°). The joint line elevation of the tibia (JLET) was 4.4 mm (2.1 to 7.8). The δFTA was correlated with the JLET (correlation coefficient 0.494, p = 0.0009). CONCLUSIONS This study indicated that there is a significant correlation between the change of limb alignment and joint line elevation. This observation suggests that it is possible to know the requirement of elevation of the joint line to obtain the desired correction of limb alignment, and to predict the requirement of bone resection of the proximal tibia pre-operatively. Cite this article: Bone Joint Res 2015;4:128-133.
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Affiliation(s)
| | | | | | | | | | | | | | - Y. Iwamoto
- Kyushu University, 3-1-1
Maidashi, Higashi-ku, Fukuoka, 812-0054 Japan
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13
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Kuwashima U, Okazaki K, Tashiro Y, Mizu-Uchi H, Hamai S, Okamoto S, Murakami K, Iwamoto Y. Correction of coronal alignment correlates with reconstruction of joint height in unicompartmental knee arthroplasty. Bone Joint Res 2015; 4:128-33. [DOI: 10.1302/2046-3758.48.2000416] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Objectives Because there have been no standard methods to determine pre-operatively the thickness of resection of the proximal tibia in unicompartmental knee arthroplasty (UKA), information about the relationship between the change of limb alignment and the joint line elevation would be useful for pre-operative planning. The purpose of this study was to clarify the correlation between the change of limb alignment and the change of joint line height at the medial compartment after UKA. Methods A consecutive series of 42 medial UKAs was reviewed retrospectively. These patients were assessed radiographically both pre- and post-operatively with standing anteroposterior radiographs. The thickness of bone resection at the proximal tibia and the distal femur was measured radiographically. The relationship between the change of femorotibial angle (δFTA) and the change of joint line height, was analysed. Results The mean pre- and post-operative FTA was 180.5° (172.2° to 184.8°) and 175.0° (168.5° to 178.9°), respectively. The mean δFTA was 5.5° (2.3° to 10.1°). The joint line elevation of the tibia (JLET) was 4.4 mm (2.1 to 7.8). The δFTA was correlated with the JLET (correlation coefficient 0.494, p = 0.0009). Conclusions This study indicated that there is a significant correlation between the change of limb alignment and joint line elevation. This observation suggests that it is possible to know the requirement of elevation of the joint line to obtain the desired correction of limb alignment, and to predict the requirement of bone resection of the proximal tibia pre-operatively. Cite this article: Bone Joint Res 2015;4:128–133
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Affiliation(s)
| | | | | | | | | | | | | | - Y. Iwamoto
- Kyushu University, 3-1-1
Maidashi, Higashi-ku, Fukuoka, 812-0054 Japan
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Morino S, Nishiguchi S, Fukutani N, Adachi D, Tashiro Y, Hotta T, Shirooka H, Nozaki Y, Hirata H, Yamaguchi M, Matsumoto D, Aoyama T. Association between pelvic asymmetry and lumbopelvic pain during pregnancy. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.1906] [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: 11/16/2022]
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15
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Goto S, Koike E, Tanaka M, Komai S, Narita M, Sekimoto M, Tashiro Y, Naito R, Kitano M. Reduced incidence of hepatitis in blood-recipients by means of donor-screening by electro-dermatography. Bibl Haematol 2015; 23:1058-61. [PMID: 5879439 DOI: 10.1159/000384357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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16
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Adachi D, Fukutani N, Nishiguchi S, Hotta T, Morino S, Tashiro Y, Hirata H, Nozaki Y, Shirooka H, Yamaguchi M, Yamada M, Aoyama T. P218: Differences in chest wall mobility and respiratory function among age groups: a cross-sectional study of the healthy elderly. Eur Geriatr Med 2014. [DOI: 10.1016/s1878-7649(14)70392-4] [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: 11/27/2022]
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Fernandes J, Ribeiro S, Garrido P, Sereno J, Costa E, Reis F, Santos-Silva A, Hirata M, Tashiro Y, Aizawa K, Endo K, Fujimori A, Morikami Y, Okada S, Kumei M, Mizobuchi N, Sakai M, Claes K, Di Giulio S, Galle J, Guerin A, Kiss I, Suranyi M, Winearls C, Wirnsberger G, Farouk M, Manamley N, Addison J, Herlitz H, Visciano B, Nazzaro P, Riccio E, Del Rio A, Mozzillo GR, Pisani A, Gupta A, Ikizler TA, Lin V, Guss C, Pratt RD, Stewart VM, Anthoney A, Blenkin S, Ahmed S, Yasumoto M, Tsuda A, Ishimura E, Ohno Y, Ichii M, Nakatani S, Mori K, Fukumoto S, Uchida J, Emoto M, Nakatani T, Inaba M, Joki N, Tanaka Y, Kubo S, Asakawa T, Hase H, Ikeda M, Inaguma D, Sakaguchi T, Shinoda T, Koiwa F, Negi S, Yamaka T, Shigematsu T, Inaguma D, Suranyi MG, Claes K, Di Giulio S, Galle J, Kiss I, Winearls C, Wirnsberger G, Farouk M, Manamley N, Addison J, Herlitz H, Guerin A, Groenendaal-Van De Meent D, Den Adel M, Rijnders S, Essers H, Golor G, Haffner S, Schaddelee M, Hirata M, Tashiro Y, Yogo K, Aizawa K, Endo K, Choukroun G, Hannedouche T, Kessler M, Laville M, Levannier M, Mignon F, Rostaing L, Rottembourg J, Jeon J, Park Y, Karanth S, Prabhu R, Bairy M, Nagaraju SP, Bhat A, Kosuru S, Parthasarathy R, Kamath S, Prasad HK, Kallurwar KP, Nishida H, Iimori S, Okado T, Rai T, Uchida S, Sasaki S, Wan Q, Cana Ruiu DC, Ashcroft R, Brown C, Williams J, Mikhail A. CKD ANAEMIA. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu147] [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: 11/14/2022] Open
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Serizawa K, Yogo K, Tashiro Y, Takeda S, Endo K. Active vitamin D3 analog, eldecalcitol, improves flow-mediated dilation via PPAR gamma/NF-kappaB signaling pathway in ovariectomized rats. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht307.p591] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Serizawa K, Yogo K, Tashiro Y, Hirata M, Endo K. Erythropoiesis-stimulating agent improves flow-mediated dilation via reduction of oxidative stress in chronic kidney disease rats. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht307.p581] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Hirata M, Tashiro Y, Aizawa K, Endo K, Hirata M, Tashiro Y, Endo K, Aizawa K, Serizawa K, Hirata M, Yogo K, Tashiro Y, Endo K, Cases A, Portoles J, Calls J, Martinez-Castelao A, Munar MA, Segarra A, Samouilidou E, Pantelias K, Petras D, Mpakirtzi T, Pipili C, Chatzivasileiou G, Vasiliou K, Denda E, Grapsa E, Tzanatos H, Shoji S, Inaba M, Tomosugi N, Okuno S, Ichii M, Yamakawa T, Kurihara S, Barsan L, Stanciu A, Stancu S, Capusa C, Bratescu L, Mircescu G, Barsan L, Stanciu A, Stancu S, Capusa C, Mircescu G, Kuo KL, Hung SC, Lee TS, Tarng DC, Nistor I, Covic A, Goldsmith D, Garrido P, Fernandes J, Ribeiro S, Vala H, Parada B, Alves R, Belo L, Costa E, Santos-Silva A, Reis F, Abdulnabi K, Ullah A, Abdulateef A, Howse M, Khalil A, Fouqueray B, Hoffmann M, Addison J, Manamley N, Stamopoulos D, Mpakirtzi N, Afentakis N, Grapsa E, Yu KH, Chou J, Klaus S, Schaddelee M, Kashiwa M, Takada A, Neff T, Galle J, Claes K, Di Giulio S, Guerin A, Herlitz H, Kiss I, Wirnsberger G, Manamley N, Addison J, Fouqueray B, Froissart M, Winearls C, Martinez Castelao A, Cases Amenos A, Torre Carballada A, Torralba Iranzo FJ, Bronsoms Artero JM, Toran Monserrat D, Valles Prats M, Merino JL, Espejo B, Bueno B, Amezquita Y, Paraiso V, Kiss Z, Kerkovits L, Ambrus C, Kulcsar I, Szegedi J, Benke A, Borbas B, Ferenczi S, Hengsperger M, Kazup S, Nagy L, Nemeth J, Rozinka A, Szabo T, Szelestei T, Toth E, Varga G, Wagner G, Zakar G, Gergely L, Kiss I, Exarchou K, Tanahill N, Anthoney A, Khalil A, Ahmed S, Capusa C, Oprican R, Stanciu A, Lipan M, Stancu S, Chirculescu B, Mircescu G, Ferenczi S, Roger S, Malecki R, Farouk M, Dellanna F, Thomas M, Manamley N, Touam M, Chantrel F, Bouiller M, Hurot JM, Raphael T, Testa A, Veillon S, Vendrely B, Masoumi Z, Ahmadpoor P, Ghaderian SMH, Nafar M, Samavat S, Samadian F, Poorrezagholi F, Shahidi M, Riccio E, Visciano B, Capuano I, Memoli A, Mozzillo G, Memoli B, Pisani A. Anaemia in CKD 1-5. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft131] [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: 11/13/2022] Open
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Loh ZY, Yap CW, Anantharaman V, How P, Hirata M, Aizawa K, Yogo K, Tashiro Y, Takeda S, Endo K, Fukagawa M, Serizawa KI, Fujii H, Fujii H, Kono K, Nakai K, Goto S, Hirata M, Shinohara M, Kitazawa R, Kitazawa S, Fukagawa M, Nishi S, Oruc A, Korkmaz S, Bal O, Yilmaztepe Oral A, Ersoy A, Gullulu M, Ketteler M, Martin K, Amdahl M, Cozzolino M, Goldsmith D, Sharma A, Khan S, Ketteler M, Martin K, Amdahl M, Cozzolino M, Goldsmith D, Sharma A, Khan S, Chitalia N, Afzali B, Edozie F, Manghat P, Wierzbicki A, Hampson G, Goldsmith D, Corradini M, Iannuzzella F, Manenti L, Ciarrocchi A, Albertazzi L, Somenzi D, Pasquali S, Calabria Baxmann A, Barcellos Menon V, Froeder L, Medina-Pestana JO, Barbosa Carvalho A, Pfeferman Heilberg I, Sola L, De Souza N, Flores J, Perico N, Yuste C, Garcia DE Vinuesa MS, Luno J, Goicoechea MA, Barraca D, Panizo N, Quiroga B, Kim SM, Kwon SK, Kim HY, Cournoyer S, Bell R, Berbiche D, Menard L, Viaene L, Evenepoel P, Meijers B, Overbergh L, Mathieu C, Pasquali M, Rotondi S, Conte C, Pirro G, Mazzaferro S, Frasheri A, Marangella M, Tartaglione L, Park JS, Koo TY, Kim GH, Kang CM, Lee CH, Hiemstra TF, Casian A, Boraks P, Jayne D, Schoenmakers I, Schmiedeke B, Niemann M, Schmiedeke D, Davydenko I, Emmert A, Pilz S, Obermayer-Pietsch B, Weidemann F, Breunig F, Wanner C, Drechsler C, Shiizaki K, Ito C, Onishi A, Nakazawa E, Ogura M, Kusano E, Ermolenko V, Mikhaylova N, Mikhaylova N, Vartanjan K, Levchuk D, Dobrina E, Capusa C, Stancu S, Maria D, Vladu I, Barsan L, Garneata L, Mota E, Mircescu G, Capusa C, Stancu S, Barsan L, Ilyes A, Dorobantu N, Petrescu L, Mircescu G, Martinez-Gallardo R, Martinez-Gallardo R, Ferreira F, Garcia-Pino G, Luna E, Caravaca F, De Jager DJ, Grootendorst DC, Postmus I, De Goeij MCM, Boeschoten EW, Sijpkens YWJ, Dekker FW, Halbesma N, Wuthrich RP, Covic A, Gaillard S, Rakov V, Louvet L, Buchel J, Steppan S, Passlick-Deetjen J, Massy ZA, Akalin N, Akalin N, Altiparmak MR, Trabulus S, Yalin AS, Seyahi N, Ataman R, Serdengecti K, Donate-Correa J, Martinez-Sanz R, Muros-de-Fuentes M, Garcia J, Garcia P, Cazana V, Mora-Fernandez C, Navarro-Gonzalez JF, Chitalia N, Afzali B, Edozie F, Manghat P, Wierzbicki A, Hampson G, Goldsmith D, Berutti S, Marranca D, Soragna G, Erroi L, Migliardi M, Marangella M, Corradini M, Iannuzzella F, Belloni L, Somenzi D, Parmeggiani M, Pasquali S, Camerini C, Pezzotta M, Zani R, Movilli E, Cancarini G, Anwar S, Pruthi R, Kenchayikoppad S, Reyes J, Dasilva I, Furlano M, Calero F, Montanes R, Ayasreh N, Del Pozo M, Estorch M, Rousaud F, Ballarin JA, Bover J, Resende A, Dias CB, Dos Reis L, Jorgetti V, Woronik V, Panuccio V, Panuccio V, Enia G, Tripepi R, Cutrupi S, Pizzini P, Aliotta R, Zoccali C, Yildiz I, Sagliker Y, Demirhan O, Tunc E, Inandiklioglu N, Tasdemir D, Acharya V, Zhang L, Golea O, Sabry A, Ookalkar D, Capusa C, Radulescu D, Garneata L, Mircescu G, Ben Maiz H, Chen CH, Rome JP, Benzegoutta M, Paylar N, Eyupoglu K, Karatepe E, Esenturk M, Yavascan O, Grzegorzevska A, Shilo V, M-Mazdeh M, Francesco RC, Gouda Z, Adam SM, Emir I, Ocal F, Usta E, Kiralp N, Sagliker C, S Ozkaynak P, Sagliker HS, Bassuoni M, El-Wakil HS, Akar H, Yenicerioglu Y, Kose E, Sekin O. Mineral and bone disease - CKD 1-5. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs219] [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: 11/14/2022] Open
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Lypovetska S, Grytsenko S, Njerve IU, Pettersen AA, Opstad TB, Bratseth V, Arnesen H, Seljeflot I, Dumitriu IE, Baruah P, Antunes RF, Kaski JC, Forteza MJ, Bodi V, Trapero I, Benet I, Alguero C, Chaustre FJ, Gomez C, Sanchis J, Chorro FJ, Mangold A, Puthenkalam S, Distelmaier K, Adlbrecht C, Preissner KT, Lang IM, Koizumi T, Inoue I, Komiyama N, Nishimura S, Korneeva ON, Drapkina OM, Fornai L, Angelini A, Kiss A, Giskes F, Eijkel G, Fedrigo M, Valente ML, Thiene G, Heeren RMA, Vilahur G, Padro T, Casani L, Suades R, Badimon L, Bertoni B, Carminati R, Carlini V, Pettinari L, Martinelli C, Gagliano N, Noppe G, Buchlin P, Marquet N, Baeyens N, Morel N, Vanoverschelde JL, Bertrand L, Beauloye C, Horman S, Baysa A, Sagave J, Dahl CP, Gullestad L, Carpi A, Di Lisa F, Giorgio M, Vaage J, Valen G, Vafiadaki E, Papalouka V, Arvanitis DA, Terzis G, Spengos K, Kranias EG, Manta P, Sanoudou D, Gales C, Genet G, Dague E, Cazorla O, Payre B, Mias C, Ouille A, Lacampagne A, Pathak A, Senard JM, Abonnenc M, Da Costa Martins P, Srivastava S, Didangelos A, Yin X, Gautel M, De Windt L, Mayr M, Comelli L, Rocchiccioli S, Lande C, Ucciferri N, Trivella MG, Citti L, Cecchettini A, Ikonen L, Vuorenpaa H, Kujala K, Sarkanen JR, Heinonen T, Ylikomi T, Aalto-Setala K, Capros H, Sprincean N, Usurelu N, Egorov V, Stratu N, Matchkov V, Bouzinova E, Moeller-Nielsen N, Wiborg O, Aalkjaer C, Gutierrez PS, Aparecida-Silva R, Borges LF, Moreira LFP, Dias RR, Kalil J, Stolf NAG, Zhou W, Suntharalingam K, Brand N, Vilar Compte R, Ying L, Bicknell K, Dannoura A, Dash P, Brooks G, Tsimafeyeu I, Tishova Y, Wynn N, Oyeyipo IP, Olatunji LA, Maegdefessel L, Azuma J, Toh R, Raaz U, Merk DR, Deng A, Spin JM, Tsao PS, Lande C, Cecchettini A, Tedeschi L, Taranta M, Naldi I, Citti L, Trivella MG, Grimaldi S, Cinti C, Bousquenaud M, Maskali F, Poussier S, Marie PY, Boutley H, Karcher G, Wagner DR, Devaux Y, Torre I, Psilodimitrakopoulos S, Iruretagoiena I, Gonzalez-Tendero A, Artigas D, Loza-Alvarez P, Gratacos E, Amat-Roldan I, Murray L, Carberry DM, Dunton P, Miles MJ, Suleiman MS, Kanesalingam K, Taylor R, Mc Collum CN, Parniczky A, Solymar M, Porpaczy A, Miseta A, Lenkey ZS, Szabados S, Cziraki A, Garai J, Koller A, Myloslavska I, Menazza SM, Canton MC, Di Lisa FDL, Schulz RS, Oliveira SHV, Morais CAS, Miranda MR, Oliveira TT, Lamego MRA, Lima LM, Goncharova NS, Naymushin AV, Kazimli AV, Moiseeva OM, Lima LM, Carvalho MG, Sabino AP, Mota APL, Sousa MO, Niessner A, Richter B, Hohensinner PJ, Rychli K, Zorn G, Berger R, Moertl D, Pacher R, Wojta J, Huelsmann M, Kukharchik G, Nesterova N, Pavlova A, Gaykovaya L, Krapivka N, Konstantinova I, Sichinava L, Prapa S, Mccarthy KP, Kilner PJ, Xu XY, Johnson MR, Ho SY. Poster session 2. Cardiovasc Res 2012. [DOI: 10.1093/cvr/cvr334] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Maki N, Ohkuchi A, Tashiro Y, Kim MR, Le M, Sakamoto T, Matsubara S, Hakamata Y. Initial dose of vancomycin based on body weight and creatinine clearance to minimize inadequate trough levels in Japanese adults. Eur J Clin Microbiol Infect Dis 2012; 31:2537-43. [PMID: 22391760 DOI: 10.1007/s10096-012-1593-y] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2011] [Accepted: 02/14/2012] [Indexed: 10/28/2022]
Abstract
Our aims were to elucidate the factors that affected vancomycin (VCM) serum trough levels and to find the optimal initial dose based on creatinine clearance (CrCl) and body weight (BW) to minimize inadequate trough levels in a retrospective observational study among Japanese adults. One hundred and six inpatients, in whom VCM trough levels were measured after completing the third dosing, were consecutively recruited into our study in a tertiary hospital. We considered the frequency of <30% as low. In the generalized linear model, initial VCM total daily dose, CrCl, and BW were independent risk factors of VCM trough levels. In patients with CrCl ≥30 and <50 mL/min, 1 g/day yielded low frequencies of a trough level of ≥20 mcg/mL, regardless of BW. In patients with CrCl ≥50 mL/min, 2 g/day yielded low frequencies of a trough level of <10 mcg/mL in patients weighing <55 kg, but not in patients weighing ≥55 kg. Optimal VCM initial total daily dose may be 1 g/day in patients with CrCl ≥30 and <50 mL/min regardless of BW and 2 g/day in patients weighing <55 kg with CrCl ≥50 mL/min among Japanese adults.
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Affiliation(s)
- N Maki
- Department of General Internal Medicine, Shizuoka General Hospital, Shizuoka City, Shizuoka, Japan
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Mitsuyasu H, Matsuda S, Fukagawa S, Okazaki K, Tashiro Y, Kawahara S, Nakahara H, Iwamoto Y. Enlarged post-operative posterior condyle tightens extension gap in total knee arthroplasty. ACTA ACUST UNITED AC 2011; 93:1210-6. [DOI: 10.1302/0301-620x.93b9.25822] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We investigated whether the extension gap in total knee replacement (TKR) would be changed when the femoral component was inserted. The extension gap was measured with and without the femoral component in place in 80 patients with varus osteoarthritis undergoing posterior-stabilised TKR. The effect of a post-operative increase in the size of the femoral posterior condyles was also evaluated. The results showed that placement of the femoral component significantly reduced the medial and lateral extension gaps by means of 1.0 mm and 0.9 mm, respectively (p < 0.0001). The extension gap was reduced when a larger femoral component was selected relative to the thickness of the resected posterior condyle. When the post-operative posterior lateral condyle was larger than that pre-operatively, 17 of 41 knees (41%) showed a decrease in the extension gap of > 2.0 mm. When a specially made femoral trial component with a posterior condyle enlarged by 4 mm was tested, the medial and lateral extension gaps decreased further by means of 2.1 mm and 2.8 mm, respectively. If the thickness of the posterior condyle is expected to be larger than that pre-operatively, it should be recognised that the extension gap is likely to be altered. This should be taken into consideration when preparing the extension gap.
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Affiliation(s)
- H. Mitsuyasu
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - S. Matsuda
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - S. Fukagawa
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - K. Okazaki
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Y. Tashiro
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - S. Kawahara
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - H. Nakahara
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Y. Iwamoto
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
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Ishiyama S, Tashiro Y, Nagayasu K, Niwa K, Ono S, Sugimoto K, Hata M, Kamiyama H, Komiyama H, Takahashi M, Yaginuma Y, Kojima Y, Goto M, Tanaka M, Sengoku H, Okuzawa A, Tomiki Y, Sakamoto K. Spontaneous disappearance of a giant colonic lipoma after endoscopic biopsy. Endoscopy 2011; 43 Suppl 2 UCTN:E16. [PMID: 21271519 DOI: 10.1055/s-0030-1255826] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- S Ishiyama
- Department of Coloproctological Surgery, Juntendo University, Tokyo, Japan.
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Abdel-Rahman M, Tashiro Y, Zendo T, Sonomoto K. Isolation and Characterization of Novel Lactic Acid Bacterium for Efficient Production of L (+) - Lactic Acid from Xylose. J Biotechnol 2010. [DOI: 10.1016/j.jbiotec.2010.09.383] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Haba H, Tsukada K, Asai M, Toyoshima A, Ishii Y, Toume H, Sato T, Nishinaka I, Ichikawa T, Ichikawa S, Nagame Y, Sato W, Matsuo K, Kitamoto Y, Tashiro Y, Shinohara A, Saito J, Ito M, Ikezawa T, Sakamaki M, Goto S, Kudo H, Kikunaga H, Arai M, Kamataki S, Yokoyama A, Akiyama K, Sueki K, Oura Y, Schädel M, Brüchle W, Kratz JV. Extraction behavior of rutherfordium into tributylphosphate from hydrochloric acid. RADIOCHIM ACTA 2009. [DOI: 10.1524/ract.2007.95.1.1] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The extraction behavior of rutherfordium (Rf) into tributylphosphate (TBP) from hydrochloric acid (HCl) has been studied together with those of the lighter group-4 elements Zr and Hf. The extractability of261Rf,169Hf, and85Zr into TBP was investigated under identical conditions in 7.2–8.0 M HCl by on-line reversed-phase extraction chromatography. The percent extractions of Rf, Hf, and Zr into the TBP resin increase steeply with increasing HCl concentration, and the order of extraction is Zr > Hf ≈ Rf. By considering the order of chloride complexation among these elements, it is suggested that the stability of the TBP complex of Rf tetrachloride is lower than those of Zr and Hf.
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Koshiko S, Yamazaki S, Ozawa K, Uchida D, Fujimori T, Kimura F, Tashiro Y. [Three cases of spontaneous mediastinal emphysema]. Kyobu Geka 2009; 62:477-480. [PMID: 19522209] [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: 05/27/2023]
Abstract
We report 3 cases of spontaneous mediastinal emphysema. All patients were young males, and had predisposing episodes for development of spontaneous mediastinal emphysema; sports in 2, loud voice in 1. The each chief complaint was dyspnea, throat pain, and epigastric pain. Two patients were admitted, but 1 rejected admission despite sufficient informed consent. All patients became asymptomatic with mediastinal air reabsorption within a week. We should recognize spontaneous mediastinal emphysema as one cause of chest, back, neck and epigastric pain.
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Affiliation(s)
- S Koshiko
- Department of Surgery, Rumoi City Hospital, Rumoi, Japan
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Yuda A, Noji S, Tatebayashi T, Tashiro Y. [Successful surgical treatment of acute pulmonary thromboembolism caused by giant intra-pervic tumor; report of a case]. Kyobu Geka 2008; 61:1067-1069. [PMID: 19048910] [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: 05/27/2023]
Abstract
A 40-year-old woman was admitted to our hospital because of operation for giant intra-pervic tumor. She had a history of deep vein thrombosis. Suddenly she complained severe dyspnea while having a bath, and subsequently cardiogenic shock occurred. Immediately we set up percutaneous cardiopulmonary support (PCPS) for acute pulmonary thromboembolism. Despite thrombolytic therapy including the administration of urokinase and rt-PA, hemodinamics were not improved. Emergent pulmonary embolectomy was performed on-pump beating. Postoperative course was uneventful. The intra-pervic tumor was removed on the 24th postoperative day. She was discharged in good condition on the 38th postoperative day. Quick diagnosis and appropriate therapy are essential in patient with acute massive pulmonary thromboembolism.
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Affiliation(s)
- A Yuda
- Department of Cardiovascular Surgery, Higashiyamato Hospital, Higashiyamato, Japan
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Yonekura K, Utsunomiya A, Takatsuka Y, Takeuchi S, Tashiro Y, Kanzaki T, Kanekura T. Graft-versus-adult T-cell leukemia/lymphoma effect following allogeneic hematopoietic stem cell transplantation. Bone Marrow Transplant 2008; 41:1029-35. [DOI: 10.1038/bmt.2008.39] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Abstract
The propagation of sound in hollow tubes is a fundamental theme common to many areas of classical acoustics. Kirchhoff's theory explaining the propagation of sound in a circular tube is now playing an important role as a starting point in studying sound in porous media. This paper reports on measurements of the phase velocity and attenuation coefficient in the narrow regions of tubes, where the sound undergoes anomalous dispersion and is seen to slow down remarkably to the extent that a runner can pass ahead of it. Kirchhoff's theory can be verified by experiment over a wide range of thermodynamical conditions, from isentropic to isothermal.
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Affiliation(s)
- T Yazaki
- Department of Physics, Aichi University of EducationKariya 448-8542, Japan
| | - Y Tashiro
- Department of Crystalline Materials Science, Nagoya UniversityNagoya 464-8603, Japan
| | - T Biwa
- Department of Mechanical Systems and Design, Tohoku UniversitySendai 980-8579, Japan
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Ooe K, Tashiro Y, Saika D, Kitamoto Y, Matsuo K, Takabe T, Kuribayashi T, Takahashi N, Yoshimura T, Sato W, Takahisa K, Shinohara A. Development of On-line Solvent Extraction System with Microchips for Heavy Element Chemistry. ACTA ACUST UNITED AC 2007. [DOI: 10.14494/jnrs2000.8.59] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Tsunoda Y, Sakai N, Kikuchi K, Katoh S, Akagi K, Miura-Ohnuma J, Tashiro Y, Murata K, Shibuya N, Katoh E. Improving expression and solubility of rice proteins produced as fusion proteins in Escherichia coli. Protein Expr Purif 2006; 42:268-77. [PMID: 15914031 DOI: 10.1016/j.pep.2005.04.002] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2004] [Revised: 04/01/2005] [Accepted: 04/05/2005] [Indexed: 11/20/2022]
Abstract
For proteins of higher eukaryotes, such as plants, which have large genomes, recombinant protein expression and purification are often difficult. Expression levels tend to be low and the expressed proteins tend to misfold and aggregate. We tested seven different expression vectors in Escherichia coli for rapid subcloning of rice genes and for protein expression and solubility levels. Each expressed gene product has an N-terminal fusion protein and/or tag, and an engineered protease site upstream of the mature rice protein. Several different fusion proteins/tags and protease sites were tested. We found that the fusion proteins and the protease sites have significant and varying effects on expression and solubility levels. The expression vector with the most favorable characteristics is pDEST-trx. The vector, which is a modified version of the commercially available expression vector, pET-32a, contains an N-terminal thioredoxin fusion protein and a hexahistidine tag, and is adapted to the Gateway expression system. However, addition of an engineered protease site could drastically change the expression and solubility properties. We selected 135 genes corresponding to potentially interesting rice proteins, transferred the genes from cDNAs to expression vectors, and engineered in suitable protease sites N-terminal to the mature proteins. Of 135 genes, 131 (97.0%) could be expressed and 72 (53.3%) were soluble when the fusion proteins/tags were present. Thirty-eight mature-length rice proteins and domains (28.1%) are suitable for NMR solution structure studies and/or X-ray crystallography. Our expression systems are useful for the production of soluble plant proteins in E. coli to be used for structural genomics studies.
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Affiliation(s)
- Yuki Tsunoda
- Biochemistry Department, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan
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Cabrera ME, Eizuru Y, Itoh T, Koriyama C, Tashiro Y, Ding S, Rey S, Akiba S, Corvalan A. Nasal natural killer/T-cell lymphoma and its association with type "i"/XhoI loss strain Epstein-Barr virus in Chile. J Clin Pathol 2006; 60:656-60. [PMID: 16775124 PMCID: PMC1955082 DOI: 10.1136/jcp.2005.034199] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Nasal T/natural killer (NK)-cell lymphoma is an aggressive type of non-Hodking's lymphoma associated with Epstein-Barr virus (EBV) and striking geographical variations worldwide. AIM To characterise nasal NK/T-cell lymphoma associated with genotypes of EBV in Chile, a Latin American country, where multiple strains of EBV, including two new recombinant strains, in healthy individuals were recently found. METHODS Cases with diagnosis of primary nasal lymphoma were selected for histological and immunohistochemical analysis (CD3, CD3e, CD4, CD8, CD79a, CD56, CD57 and TIA-1) and in-situ hybridisation, serology and genotyping analysis for EBV. RESULTS Out of 22 cases, 9 (41%) cases fulfilled the World Health Organization criteria for nasal NK/T-cell lymphoma; of these 7 (78%) cases were positive for EBV. Genotyping analysis revealed 6 cases of type 1 EBV and wildtype F at the BamHI-F region, 4 cases type "i" EBV at the BamHI-W1/I1 region; XhoI wild type was found in 2 and XhoI loss in 4 cases, respectively. Cosegregation analysis of the BamHI-W1/I1 region and XhoI restriction site showed the new recombinant strain type "i"/XhoI loss in 3 cases and type "i"/XhoI wild-type strain in 1 case. Most patients were treated with combined anthracycline-containing regimens. Half of the cases attained complete remission. CONCLUSION Although nasal NK/T-cell lymphomas from Chile share similar clinicopathological features, high association with EBV and unfavourable prognosis with those described elsewhere, genotype analysis shows that the new recombinant type "i"/XhoI loss strain might contribute to explain the intermediate incidence of nasal NK/T-cell lymphomas in Latin America.
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Affiliation(s)
- M E Cabrera
- Department of Medicine, Hematology Section, Faculty of Medicine, Universidad de Chile, Hospital Salvador, Santiago, Chile.
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Ahmad M, Tashiro Y, Matsukawa S, Ogawa H. Comparison of Gelation Mechanism of Surimi between Heat and Pressure Treatment by Using Rheological and NMR Relaxation Measurements. J Food Sci 2006. [DOI: 10.1111/j.1365-2621.2004.tb09935.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kato K, Murotani N, Matsufuji H, Saitoh M, Tashiro Y. Chemical removal and recovery of phosphorus from excess sludge in a sewage treatment plant. Environ Technol 2006; 27:501-10. [PMID: 16749618 DOI: 10.1080/09593332808618660] [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: 05/10/2023]
Abstract
We describe a process for the recovery of phosphorus from excess sludge in a sewage treatment plant that currently uses polyaluminium chloride for chemical phosphorus removal. Instead, we employed alkaline dissolution of excess sludge with calcium phosphate precipitation to recover phosphorus from sewage. The recovery ratio for phosphorus from sewage using the phosphorus recovery system is approximately 50%. In addition, the amount of excess sludge in the phosphorus recovery system is approximately half that of conventional chemical phosphorus removal. Alkaline dissolution of excess sludge resulted in dissolution of aluminium into the supernatant. Furthermore, since dissolved aluminium can be reused as a coagulant, the phosphorus recovery system could be used to economize coagulant consumption. Operation and maintenance costs of the phosphorus recovery system are 25.9 U.S. cents per 1 m3 of sewage compared to 32.0 U.S. cents per 1 m3 of sewage for conventional chemical phosphorus removal, representing a decrease of 20% in the operation and maintenance costs.
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Affiliation(s)
- K Kato
- Research & Development Division, Sanki Engineering Co., Ltd., 1742-7, Shimotsuruma, Yamato-shi, Kanagawa, 242-0001, Japan
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Zendo T, Eungruttanagorn N, Fujioka S, Tashiro Y, Nomura K, Sera Y, Kobayashi G, Nakayama J, Ishizaki A, Sonomoto K. Identification and production of a bacteriocin from Enterococcus mundtii QU 2 isolated from soybean. J Appl Microbiol 2005; 99:1181-90. [PMID: 16238749 DOI: 10.1111/j.1365-2672.2005.02704.x] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIMS Identification of the bacteriocin produced by Enterococcus mundtii QU 2 newly isolated from soybean and fermentative production of the bacteriocin. METHODS AND RESULTS The bacteriocin produced by Ent. mundtii QU 2 inhibited the growth of various indicator strains, including Enterococcus, Lactobacillus, Leuconostoc, Pediococcus and Listeria. The bacteriocin activity was stable at wide pH range and against heat treatment, but completely abolished by proteolytic enzymes. The bacteriocin was purified from the culture supernatant by the three-step chromatographic procedure. Mass spectrometry, amino acid sequencing and DNA sequencing revealed that the bacteriocin was similar to class IIa bacteriocins produced by other Ent. mundtii strains. The bacteriocin production decreased in the absence of glucose, nitrogen sources, or Tween 80 in MRS medium. Additionally, it was strongly suppressed by addition of Ca(2+) (CaCO(3) or CaCl(2)). In pH-controlled fermentations, the highest bacteriocin production was achieved at pH 6.0, whereas the highest cell growth was obtained at pH 7.0. CONCLUSIONS Ent. mundtii QU 2 produced a class IIa bacteriocin. Some growth factors (e.g. Ca(2+) and pH) influenced the bacteriocin production. SIGNIFICANCE AND IMPACT OF THE STUDY A new soybean isolate, Ent. mundtii QU 2 was found to be a class IIa bacteriocin producer. Factors influencing the bacteriocin production described herein are valuable for applications of the bacteriocins from Ent. mundtii strains.
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Affiliation(s)
- T Zendo
- Laboratory of Microbial Technology, Division of Microbial Science and Technology, Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
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Shigyo M, Wako T, Kojima A, Yamauchi N, Tashiro Y. Transmission of alien chromosomes from selfed progenies of a complete set of Allium monosomic additions: the development of a reliable method for the maintenance of a monosomic addition set. Genome 2003; 46:1098-103. [PMID: 14663528 DOI: 10.1139/g03-075] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Selfed progeny of a complete set of Allium fistulosum - Allium cepa monosomic addition lines (2n = 2x + 1 = 17, FF+1A-FF+8A) were produced to examine the transmission rates of respective alien chromosomes. All eight types of the selfed monosomic additions set germinable seeds. The numbers of chromosomes (2n) in the seedlings were 16, 17, or 18. The eight extra chromosomes varied in transmission rate (%) from 9 (FF+2A) to 49 (FF+8A). The complete set of monosomic additions was reproduced successfully by self-pollination. A reliable way to maintain a set of Allium monosomic additions was developed using a combination of two crossing methods, selfing and female transmission. FF+8A produced two seedlings with 18 chromosomes. Cytogenetical analyses, including GISH, showed that the seedlings were disomic addition plants carrying two entire homologous chromosomes from A. cepa in an integral diploid background of A. fistulosum. Flow cytometry analysis showed that a double dose of the alien 8A chromosome caused fluorescence intensity values spurring in DNA content, and isozyme analysis showed increased glutamate dehydrogenase activity at the gene locus Gdh-1.
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Affiliation(s)
- M Shigyo
- Department of Biological and Environmental Science, Faculty of Agriculture, Yamaguchi University, Japan.
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Abstract
The aim of this study was to evaluate the effect of fluoride-releasing adhesive systems on human decalcified dentin in vitro. Two fluoride-releasing adhesive systems, Reactmer bond (RB, Shofu) and ABF (AF, Kuraray), an experimental system, and a commercial adhesive system without fluoride release, SE bond (SE, Kuraray), were used in this study. The amount of fluoride release from adhesive in deionized water was measured every week for 10 weeks. Class V cavities were prepared on extracted human pre-molars and decalcified dentin was promoted by using a bacterial caries induction system at the cavity floor. The cavities preserving decalcified dentin were restored with resin composite (AP-X, Kuraray) after treatment by each adhesive system. The specimens without treatment by adhesive system and restoration were used for control. The specimens with restoration were then incubated for 4 weeks at 37 degrees C, 100% humidity. Microradiographs of the specimens showed that the radiopacities of the decalcified dentin layers in RB and AF groups with fluoride release were significantly higher than those in SE or control groups without fluoride release. This result suggested that the fluoride-releasing adhesive systems enhanced mineralization of decalcified dentin.
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Affiliation(s)
- T Itota
- Department of Operative Dentistry, Okayama University Graduate School of Medicine and Dentistry, Okayama, Japan.
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Bornet FRJ, Brouns F, Tashiro Y, Duvillier V. Nutritional aspects of short-chain fructooligosaccharides: natural occurrence, chemistry, physiology and health implications. Dig Liver Dis 2002; 34 Suppl 2:S111-20. [PMID: 12408453 DOI: 10.1016/s1590-8658(02)80177-3] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.8] [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: 12/11/2022]
Abstract
Short-chain fructooligosaccharides occur in a number of edible plants, such as chicory, onions, asparagus, wheat... They are a group of linear fructose oligomers with a degree of polymerisation ranging from n = 1 up to 5 (oligosaccharides). Short-chain fructooligosaccharides, to a large extent, escape digestion in the human upper intestine and reach the colon where they are totally fermented mostly to lactate, short chain fatty acids (acetate, propionate and butyrate), and gas, like dietary fibres. As a consequence of their fermentation, their caloric value is approximately 2 Kcal/g. A faecal bulking effect of fructooligosaccharides has been observed in humans. An important property of short-chain fructooligosaccharides is the stimulation of bifidobacterial growth specifically while suppressing the growth of potentially harmful species such as, for example, Clostridium perfringens in the colon. It is associated with a decrease in faecal pH, an increase in faecal or colonic organic acids, a decrease in the production of nitrogenous end products in urine and stools, a decrease in faecal bacterial enzymatic activities and a modification in faecal neutral sterols. The short-chain fructooligosaccharides enhance magnesium absorption in humans and have been shown, in animal models, to reduce colon tumour development by enhancing both colon butyrate concentrations and local immune system effectors.
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Muramatsu H, Tashiro Y, Hasegawa N, Misawa C, Minami M. Seasonal variations of 222Rn concentrations in the air of a tunnel located in Nagano city. J Environ Radioact 2002; 60:263-274. [PMID: 12054040 DOI: 10.1016/s0265-931x(01)00085-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The seasonal variation of 222Rn concentrations in the air of tunnels constructed during World War II at Nagano City has been investigated. The determination of 222Rn concentrations in tunnel air was performed using a solid-state nuclear track detector technique. The monthly radon concentrations changed smoothly, decreasing towards winter and increasing towards summer, and it was found that the concentrations strongly correlate with the temperature difference between the inside and the outside of the tunnel. In the innermost areas of the tunnel, the maximum concentration was observed in July, its value being about 6500 Bq m (-3). The concentrations of radon in the tunnel air decrease exponentially towards the openings of the tunnel, which indicates that the radon concentration in the tunnel is basically governed by diffusion and mixing of radon gas with air. These observations lead to the conclusion that the seasonal variation of the radon concentration in the tunnel air is mainly caused by a convection current due to a stack effect induced by the temperature difference between the tunnel air and the outside air.
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Affiliation(s)
- H Muramatsu
- Department of Chemistry, Faculty of Education, Shinshu University, Nishinagano, Nagano, Japan.
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Otani H, Watanabe T, Tashiro Y. Effects of bovine beta-casein (1-28) and its chemically synthesized partial fragments on proliferative responses and immunoglobulin production in mouse spleen cell cultures. Biosci Biotechnol Biochem 2001; 65:2489-95. [PMID: 11791723 DOI: 10.1271/bbb.65.2489] [Citation(s) in RCA: 34] [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] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Effects of bovine beta-casein (1-28) having a phosphoserine-rich region (Glu14-SerP-Leu-SerP-SerP-SerP-Glu-Glu21) and its chemically synthesized partial fragments on proliferation of lymphocytes and immunoglobulin production were investigated in mouse spleen cell cultures. The parent fragment 1-28 and all fragments containing SerP-Leu-SerP and/or SerP-SerP-SerP had a significant mitogenic effect, stimulated proliferation of lymphocytes induced by lipopolysaccharide, phytohemagglutinin, or concanavalin A, and increased immunoglobulin (IgG + IgM + IgA) or IgA levels in the cell cultures. In contrast, dephosphorylated beta-casein (14-21) and SerP-SerP amide had hardly any immunoregulatory activity. On the other hand, SerP-Leu-SerP amide reacted little with antibodies specific to bovine beta-casein (1-28), but beta-casein (14-21), and SerP-SerP-SerP amide obviously reacted with the antibody. These results confirm that the immunoregulatory activity of casein phosphopeptides is attributable to SerP-X-SerP, which may well be available as a non-allergic food ingredient having an adjuvant activity for mucosal IgA responses.
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Affiliation(s)
- H Otani
- Integrated Department of Sciences of Functional Foods, Graduate School of Agriculture, Shinshu University, Kamiina-gun, Nagano-ken, Japan.
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Abstract
Ehlers-Danlos syndrome type IV is of special interest to neurologists because of the risk of cerebrovascular complications. We describe a 5-year-old female with Ehlers-Danlos syndrome type IV, demonstrating multiple intracranial aneurysms and right middle cerebral artery stenosis. The diagnosis of Ehlers-Danlos syndrome type IV was confirmed by electron microscopic examination of a skin biopsy. To our knowledge, this is the youngest reported patient with intracranial aneurysms associated with the Ehlers-Danlos syndrome type IV. Ehlers-Danlos syndrome type IV should be considered in the differential diagnosis of cerebrovascular disorder and stroke in early childhood.
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Affiliation(s)
- T Kato
- Department of Pediatrics, Faculty of Medicine, Kyoto University, Kyoto, Japan
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Abstract
The objective of this study was to investigate the relationship between drug lipophilicity and the transdermal absorption processes in the iontophoretic delivery in vivo. Anodal iontophoresis of beta-blockers as model drugs having different lipophilicity (atenolol, pindolol, metoprolol, acebutolol, oxprenolol and propranolol) was performed with rats (electrical current, 0.625 mA/cm2; application period, 90 min), and the drug concentrations in skin, cutaneous vein and systemic vein were determined. Increasing the lipophilicity of beta-blockers caused a greater absorption into the skin. Exceptionally, it was found that pindolol had high skin absorption, irrespective of its hydrophilic nature. Further, the drug transfer rate from skin to cutaneous vein (R(SC)) was evaluated from the arterio-venous plasma concentration difference of drug in the skin. Normalized R(SC) by skin concentration showed a negative correlation with the logarithm of n-octanol/buffer partition coefficient (Log P, pH 7.4), suggesting the partitioning between stratum corneum and viable epidermis was a primary process to determine the transfer properties of beta-blockers to local blood circulation. Pindolol exhibited both high skin absorption and high transfer from skin to cutaneous vein. These characteristics of pindolol could be explained by the chemical structure, molecular size and hydrophilicity. These findings for pindolol should be valuable for the optimal design of drug candidates for iontophoretic transdermal delivery.
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Affiliation(s)
- Y Tashiro
- Drug Formulation Research Laboratories, Pharmaceutical Research Institute, Kyowa Hakko Kogyo Co.. Ltd., Sunto-gun, Shizuoka, Japan.
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Tashiro Y, Miyahara M, Shirasaki R, Okabe M, Heizmann CW, Murakami F. Local nonpermissive and oriented permissive cues guide vestibular axons to the cerebellum. Development 2001; 128:973-81. [PMID: 11222151 DOI: 10.1242/dev.128.6.973] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Information that originates from peripheral sensory organs is conveyed by axons of cephalic sensory cranial ganglia connecting the sensory organs to appropriate central targets in the brain. Thus, the establishment of correct axonal projections by sensory afferents is one of the most important issues in neural development. Previously, we examined the development of the vestibular nerve that originates from the VIIIth ganglion using a flat whole-mount preparation of the rat hindbrain and developed an in vitro, culture preparation that can recapitulate vestibular nerve development (Tashiro, Y., Endo, T., Shirasaki, R., Miyahara, M., Heizmann, C. W. and Murakami, F. (2000) J. Comp. Neurol. 417, 491–500). Both in vivo and in vitro, the ascending branch of the VIIIth ganglion projecting to the cerebellum reaches the base of the cerebellar primordium and starts to splay out towards the rhombic lip, apparently avoiding the ventral metencephalon. We now examine the nature of cues that guide vestibulocerebellar axons by applying various manipulations to the flat whole-mount in vitro preparation. Our observations suggest that local nonpermissive cues and oriented cues play a pivotal role in the guidance of vestibular axons to their central target.
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Affiliation(s)
- Y Tashiro
- Laboratory of Neuroscience, Division of Biophysical Engineering, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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Abstract
The effect of drug lipophilicity on in vivo iontophoretic transdermal absorption was evaluated. Non-steroidal anti-inflammatory drugs (NSAIDs) were selected as model drugs with a wide range of lipophilicity: salicylic acid (SA), ketoprofen (KP), naproxen (NP) and indomethacin (IM). Cathodal iontophoresis of NSAIDs was conducted in rats (0.625 mA/cm2; 90 min), and drug concentrations in skin, cutaneous vein and systemic vein were determined. Skin concentrations of NSAID were higher in the case of lipophilic drugs (SA=KP=NP<IM), whereas cutaneous plasma concentrations decreased with an increase in lipophilicity (SA>KP=NP>IM). Additionally, the dependence of drug lipophilicity on systemic plasma concentration was similar to cutaneous plasma concentration. The transfer rate from skin to cutaneous vein (R(SC)) was calculated from the arterio-venous plasma concentration difference of drug in the skin. Normalized R(SC) by skin concentration (R(SC)/X(S)) yielded a negative correlation with the logarithm of n-octanol/buffer partition coefficient (Log P at pH 7.4), suggesting that transfer of NSAIDs from skin to cutaneous vein decreased with increasing lipophilicity (SA>KP=NP>IM). This correlation means that drug partitioning between stratum corneum and viable epidermis might be a dominant step.
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Affiliation(s)
- Y Tashiro
- Drug Formulation Research Laboratories, Pharmaceutical Research Institute, Kyowa Hakko Kogyo Co., Ltd., Sunito-gun, Shizuoka, Japan.
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Abstract
The Japan Society for Cell Biology (JSCB) was first founded in 1950 as the Japan Society for Cellular Chemistry under the vigorous leadership of Seizo Katsunuma, in collaboration with Shigeyasu Amano and Satimaru Seno. The Society was provisionally named as above simply because cell biology had not yet been coined at that time in Japan, although in prospect and reality the Society was in fact for the purpose of pursuing cell biology. Later in 1964, the Society was properly renamed as the Japan Society for Cell Biology. After this renaming, the JSCB made great efforts to adapt itself to the rapid progress being made in cell biology. For this purpose the Society's constitution was created in 1966 and revised in 1969. According to the revised constitution, the President, Executive Committee and Councils were to be determined by ballot vote. The style of the annual meetings was gradually modified to incorporate general oral and poster presentations in addition to Symposia (1969-1974). The publication of annual periodicals in Japanese called Symposia of the Japan Society for Cellular Chemistry (1951-1967) and later Symposia of the Japan Society for Cell Biology (1968-1974) was replaced by a new international journal called Cell Structure and Function initiated in 1975. This reformation made it possible for the Society to participate in the Science Council of Japan in 1975 and finally in 1993 to acquire its own study section of Cell Biology with grants-in-aid from the Ministry of Education and Science, Japan. The JSCB hosted the 3rd International Congress on Cell Biology (ICCB) in 1984 and the 3rd Asian-Pacific Organization for Cell Biology (APOCB) Congress in 1998, thus contributing to the international advancement of cell biology. Now the membership of JSCB stands at approximately 1,800 and the number of presentations per meeting is 300 to 400 annually. Although a good number of interesting and important findings in cell biology have been reported from Japan, the general academic activity of the JSCB is far less than one might expect. This is simply due the fact that academic activity in the field of cell biology in Japan is divided among several other related societies such as the Japan Society for Molecular Biology and the Japan Society for Developmental Biology, among others.
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Affiliation(s)
- Y Tashiro
- Japan Society for Cell Biology, Kitaku, Kyoto
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