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Kanno T, Ishihara R, Mori H, Tomiyasu T, Okazaki K. Impact of amino acid 233 in Tax on bovine leukemia virus infection in Japanese Black cattle. Res Vet Sci 2023; 154:102-107. [PMID: 36571887 DOI: 10.1016/j.rvsc.2022.12.008] [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: 09/20/2022] [Revised: 12/08/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022]
Abstract
Bovine leukemia virus (BLV) is an economically important pathogen that both causes fatal enzootic bovine leukosis (EBL) and reduces lifetime milk production, reproductive efficiency, carcass weight, and longevity in dairy cows. The virus can be divided into two categories based on the amino acid at position 233 in Tax protein, which activates viral transcription and probably plays crucial roles in leukemogenesis. We recently reported that early-onset EBL in Japanese Black (JB) cattle was frequently caused by L233-Tax-carrying virus. This study examined the impact of BLV infection, the proviral load (PVL), and amino acid 233 in Tax on the outcomes of JB cattle. We measured PVL in cattle enrolled between February 2016 and December 2018, determined the Tax type of the isolates, and performed follow-up until March 2022. The results demonstrated that BLV infection increased the risk of involuntary culling and mortality in JB cattle in a PVL-dependent manner. Infection with L233-Tax-carrying virus increased the likelihood of mortality by 1.6-fold compared with the effects of P233-Tax-carrying virus infection. Intrauterine and perinatal infections were frequently caused by L233-Tax-carrying virus, and these infections were likely to influence the early onset of EBL in JB cattle. Conversely, breeding cows infected with P233-Tax-carrying virus were often eliminated by involuntary culling. These findings indicate that amino acid 233 in Tax has importance in terms of preventing economic loss attributable to EBL in JB cattle.
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Affiliation(s)
- T Kanno
- Division of Pathology and Pathophysiology, National Institute of Animal Health, 4 Hitsujigaoka, Toyohira, Sapporo, Hokkaido, Japan
| | - R Ishihara
- Division of Pathology and Pathophysiology, National Institute of Animal Health, 4 Hitsujigaoka, Toyohira, Sapporo, Hokkaido, Japan; Department of Animal Disease Control and Prevention, National Institute of Animal Health, 3-1-5 Kannondai, Tsukuba, Ibaraki, Japan
| | - H Mori
- Laboratory of Microbiology and Immunology, Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido, Japan
| | - T Tomiyasu
- Laboratory of Microbiology and Immunology, Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido, Japan
| | - K Okazaki
- Laboratory of Microbiology and Immunology, Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido, Japan.
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Tominaga A, Wada K, Okazaki K, Nishi H, Terayama Y, Kodama Y, Kato Y. Effect of the duration of previous osteoporosis treatment on the effect of romosozumab treatment. Osteoporos Int 2022; 33:1265-1273. [PMID: 35059774 DOI: 10.1007/s00198-021-06261-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 12/02/2021] [Indexed: 01/19/2023]
Abstract
UNLABELLED The effect of romosozumab is affected by previous osteoporosis treatment. Here we showed that the duration of the previous treatment just before romosozumab affects the therapeutic effect of romosozumab. Using denosumab and oral bisphosphonates for more than 1 year attenuates the effect of romosozumab. INTRODUCTION As an anti-sclerostin antibody, romosozumab suppresses bone resorption and stimulates bone formation. We investigated whether the effectiveness of 12 months of romosozumab treatment depended on the duration of previous treatment with teriparatide, denosumab, or oral bisphosphonates. METHODS In total, 259 osteoporosis patients received subcutaneous injections of romosozumab (210 mg) every 4 weeks during 2019 and 2020. This study was designed as a pre-post comparison. The end points were the percent changes of bone mineral density (BMD) after 12 months of romosozumab treatment. The patients were divided into seven groups depending on the type and duration of previous treatment before starting romosozumab as follows: non-previous treatment group, change from teriparatide used for 1 year or less/more than 1 year, change from denosumab used for 1 year or less/more than 1 year, and change from oral bisphosphonates used for 1 year or less/more than 1 year. RESULTS The effects of previous treatment with teriparatide on the effectiveness of 12-month romosozumab did not clearly depend on the duration of treatment (p > 0.05). In contrast, the effects of previous treatments with denosumab or oral bisphosphonates on the effectiveness of 12-month romosozumab depended on the previous treatment duration, which was reflected by the differences in percent change of the spine BMD (both p < 0.05), however, there were no significant differences in the percent change of the total hip BMD (both p > 0.05). CONCLUSION The duration of the previous treatment affected the effectiveness of romosozumab. Using denosumab and oral bisphosphonate for more than 1 year attenuated the effect of romosozumab.
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Affiliation(s)
- A Tominaga
- Department of Orthopedic Surgery, Tokyo Women's Medical University, 8-1 Kawadacho Shinjuku-ku, Tokyo, Japan
| | - K Wada
- Department of Orthopedic Surgery, Tokyo Women's Medical University, 8-1 Kawadacho Shinjuku-ku, Tokyo, Japan.
| | - K Okazaki
- Department of Orthopedic Surgery, Tokyo Women's Medical University, 8-1 Kawadacho Shinjuku-ku, Tokyo, Japan
| | - H Nishi
- Hasuda Hospital, 1662-1 Negane Hasudashi, Saitama, Japan
| | - Y Terayama
- Hasuda Hospital, 1662-1 Negane Hasudashi, Saitama, Japan
| | - Y Kodama
- Ohara Clinic, 2-23-19 Ohara Setagaya-ku, Tokyo, Japan
| | - Y Kato
- Kita Shinagawa 3rd Hospital, 3-3-7 Kitashinagawa Shinagawa-ku, Tokyo, Japan
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Muranaka Y, Mizutani A, Kobayashi M, Nakamoto K, Matsue M, Takagi F, Okazaki K, Nishi K, Yamazaki K, Nishii R, Shikano N, Okamoto S, Maki H, Kawai K. 123I-BMIPP, a Radiopharmaceutical for Myocardial Fatty Acid Metabolism Scintigraphy, Could Be Utilized in Bacterial Infection Imaging. Pharmaceutics 2022; 14:pharmaceutics14051008. [PMID: 35631596 PMCID: PMC9143722 DOI: 10.3390/pharmaceutics14051008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/27/2022] [Accepted: 05/03/2022] [Indexed: 02/04/2023] Open
Abstract
In this study, we evaluated the use of 15-(4-123I-iodophenyl)-3(R,S)-methylpentadecanoic acid (123I-BMIPP) to visualize fatty acid metabolism in bacteria for bacterial infection imaging. We found that 123I-BMIPP, which is used for fatty acid metabolism scintigraphy in Japan, accumulated markedly in Escherichia coli EC-14 similar to 18F-FDG, which has previously been studied for bacterial imaging. To elucidate the underlying mechanism, we evaluated changes in 123I-BMIPP accumulation under low-temperature conditions and in the presence of a CD36 inhibitor. The uptake of 123I-BMIPP by EC-14 was mediated via the CD36-like fatty-acid-transporting membrane protein and accumulated by fatty acid metabolism. In model mice infected with EC-14, the biological distribution and whole-body imaging were assessed using 123I-BMIPP and 18F-FDG. The 123I-BMIPP biodistribution study showed that, 8 h after infection, the ratio of 123I-BMIPP accumulated in infected muscle to that in control muscle was 1.31 at 60 min after 123I-BMIPP injection. In whole-body imaging 1.5 h after 123I-BMIPP administration and 9.5 h after infection, infected muscle exhibited a 1.33-times higher contrast than non-infected muscle. Thus, 123I-BMIPP shows potential for visualizing fatty acid metabolism of bacteria for imaging bacterial infections.
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Affiliation(s)
- Yuka Muranaka
- Division of Health Sciences, Graduate School of Medical Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa 920-0942, Japan; (Y.M.); (K.N.)
| | - Asuka Mizutani
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa 920-0942, Japan; (A.M.); (M.K.); (S.O.)
| | - Masato Kobayashi
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa 920-0942, Japan; (A.M.); (M.K.); (S.O.)
| | - Koya Nakamoto
- Division of Health Sciences, Graduate School of Medical Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa 920-0942, Japan; (Y.M.); (K.N.)
| | - Miki Matsue
- Ishikawa Prefectural Institute of Public Health and Environmental Science, 1-11, Taiyogaoka, Kanazawa 920-1154, Japan;
| | - Fumika Takagi
- Laboratory for Drug Discovery & Disease Research, Shionogi & Co., Ltd., 3-1-1, Futaba-cho, Toyonaka 561-0825, Japan; (F.T.); (K.O.); (H.M.)
| | - Kenichi Okazaki
- Laboratory for Drug Discovery & Disease Research, Shionogi & Co., Ltd., 3-1-1, Futaba-cho, Toyonaka 561-0825, Japan; (F.T.); (K.O.); (H.M.)
| | - Kodai Nishi
- Department of Radioisotope Medicine, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan;
| | - Kana Yamazaki
- Department of Molecular Imaging and Theranostics, Institute for Quantum Medical Science, Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan; (K.Y.); (R.N.)
| | - Ryuichi Nishii
- Department of Molecular Imaging and Theranostics, Institute for Quantum Medical Science, Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan; (K.Y.); (R.N.)
| | - Naoto Shikano
- Department of Radiological Sciences, Ibaraki Prefectural University of Health Sciences, 4669-2 Ami, Inashiki 300-0394, Japan;
| | - Shigefumi Okamoto
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa 920-0942, Japan; (A.M.); (M.K.); (S.O.)
- Advanced Health Care Science Research Unit, Innovative Integrated Bio-Research Core Institute for Frontier Science Initiative, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa 920-0942, Japan
| | - Hideki Maki
- Laboratory for Drug Discovery & Disease Research, Shionogi & Co., Ltd., 3-1-1, Futaba-cho, Toyonaka 561-0825, Japan; (F.T.); (K.O.); (H.M.)
| | - Keiichi Kawai
- Division of Health Sciences, Graduate School of Medical Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa 920-0942, Japan; (Y.M.); (K.N.)
- Biomedical Imaging Research Center, University of Fukui, 23-3 Matsuoka-shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui 910-1193, Japan
- Correspondence: ; Tel.: +81-76-265-2527; Fax: +81-76-234-4366
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Komatsubara T, Kobayashi Y, Hiraiwa A, Magara S, Hojo M, Ono T, Okazaki K, Fukuda M, Tohyama J. Recurrence rates and risk factors for seizure recurrence following antiseizure medication withdrawal in adolescent patients with genetic generalized epilepsy. Epilepsia Open 2022; 7:332-343. [PMID: 35445562 PMCID: PMC9159251 DOI: 10.1002/epi4.12603] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 04/15/2022] [Accepted: 04/17/2022] [Indexed: 11/25/2022] Open
Abstract
Objective This study aimed to identify the recurrence rate of genetic generalized epilepsy (GGE) and risk factors for recurrence after antiseizure medication (ASM) withdrawal in adolescent patients. Methods We retrospectively reviewed medical records of patients with GGE who were included in the registry at the Department of Child Neurology, National Hospital Organization Nishiniigata Chuo Hospital from 2000 through 2020. The eligibility criteria were as follows: onset of epileptic seizures at <15 years of age, treatment with an ASM, and attempted treatment withdrawal at 10‐19 years of age. The rates of seizure recurrence after drug withdrawal were evaluated. Moreover, several variables were evaluated as predictors of recurrence. Results In total, 77 patients with GGE (21, 13, and 43 patients with juvenile myoclonic epilepsy [JME], juvenile absence epilepsy [JAE], and epilepsy with generalized tonic–clonic seizures alone [EGTCSA], respectively) were included in this study. Recurrence was detected in 68% of patients with GGE (86%, 31%, and 70% of patients with JME, JAE, and EGTCSA, respectively). Recurrence rates for patients who developed epilepsy at ≥13 years of age, those who started dose reduction at ≥16 years of age, those who exhibited a seizure‐free period of <36 months before withdrawal, and those who chose to discontinue treatment at their own discretion were significantly higher than those for their counterparts. Multivariate analysis revealed that initiation of dose reduction at ≥16 years of age was associated with increased recurrence risk. Meanwhile, a diagnosis of JAE was associated with decreased recurrence risk. All patients with JAE were treated with valproic acid. Significance Antiseizure medication withdrawal at ≥16 years of age and a diagnosis other than JAE may be independent risk factors for seizure recurrence after drug withdrawal in adolescent patients.
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Affiliation(s)
- Takao Komatsubara
- Department of Child Neurology, NHO Nishiniigata Chuo Hospital, Niigata, Japan.,Department of Pediatrics, NHO Niigata Hospital, Kashiwazaki, Japan
| | - Yu Kobayashi
- Department of Child Neurology, NHO Nishiniigata Chuo Hospital, Niigata, Japan
| | - Akiko Hiraiwa
- Department of Child Neurology, NHO Nishiniigata Chuo Hospital, Niigata, Japan
| | - Shinichi Magara
- Department of Child Neurology, NHO Nishiniigata Chuo Hospital, Niigata, Japan
| | - Moemi Hojo
- Department of Child Neurology, NHO Nishiniigata Chuo Hospital, Niigata, Japan
| | - Takeshi Ono
- Department of Child Neurology, NHO Nishiniigata Chuo Hospital, Niigata, Japan
| | - Kenichi Okazaki
- Department of Child Neurology, NHO Nishiniigata Chuo Hospital, Niigata, Japan
| | - Masafumi Fukuda
- Department of Neurosurgery, NHO Nishiniigata Chuo Hospital, Niigata, Japan
| | - Jun Tohyama
- Department of Child Neurology, NHO Nishiniigata Chuo Hospital, Niigata, Japan
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Alroomy R, Elbaz F, Asiri A, Almulhim B, Kumari M, Gunaranjan T, Mashyakhy M, Okazaki K. Assessment of the middle mesial canals of mandibular first molars using cone-beam computed tomography: an in vivo study. Eur Rev Med Pharmacol Sci 2022; 26:2861-2866. [PMID: 35503630 DOI: 10.26355/eurrev_202204_28616] [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: 06/14/2023]
Abstract
OBJECTIVE For a successful root canal therapy, it is necessary to locate all the canals debride and seal them with an inert filling material. The clinician must be aware of the internal morphology and variations in a permanent tooth. Mandibular first molars are widely studied to identify variations in the anatomy of the pulp space. In this study, the primary objective was to measure the distance between the mesiobuccal (MB) and mesiolingual (ML) canals in patients with and without a middle mesial canal (MMC) using cone-beam computed tomography (CBCT). The secondary objectives were to assess the tapering degree of the mesial root and to measure the dentinal thickness in relation to the danger-zone area in patients with and without an MMC. MATERIALS AND METHODS A total of 200 CBCT scans were evaluated for the presence of an MMC. Two observers performed the observations, and the results obtained were subject to statistical analyses. RESULTS The results revealed the prevalence of MMC was 5%. The average distance between the MB and ML canals was higher when there was an MMC [M(SD) = 3.61 (0.6) vs. 2.69 (0.66)]. However, there were no differences between the groups in the distance to the danger-zone area and the tapering degree of the mesial root. On CBCT images, the MMC was clearly visible 3 mm apical to the level of the cementoenamel junction; beyond 3 mm, the MMC could not be traced. CONCLUSIONS Based upon the results of this study, the average distance between the MB and ML canals was higher when there was an MMC. A lesser degree of taper would be preferred to prepare the MMC than to prepare the other canals. It is recommended that careful examination of the canal 3 mm apical to the cementoenamel junction should be carried out when attempting to detect an MMC.
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Affiliation(s)
- R Alroomy
- Department of Restorative Dental Sciences, College of Dentistry, Majmaah University, Al Majmaah, Saudi Arabia.
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Nishimoto T, Oka F, Okazaki K, Ishihara H. Relationship Between Cerebral Hyperperfusion Syndrome and the Immediate Change of Cerebral Blood Flow After Carotid Artery Stenting Evaluated by Single-Photon Emission Computed Tomography. J Vasc Surg 2022. [DOI: 10.1016/j.jvs.2021.12.013] [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: 11/29/2022]
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Tominaga A, Wada K, Okazaki K, Nishi H, Terayama Y, Kato Y. Early clinical effects, safety, and predictors of the effects of romosozumab treatment in osteoporosis patients: one-year study. Osteoporos Int 2021; 32:1999-2009. [PMID: 33770201 PMCID: PMC7996128 DOI: 10.1007/s00198-021-05925-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 03/11/2021] [Indexed: 01/06/2023]
Abstract
UNLABELLED Romosozumab is an effective treatment for spine osteoporosis because it reduces the incidence of new fractures and significantly increases the percent change in the spine BMD at 12 months. The percent change in the spine BMD is higher in patients not previously treated with other anti-osteoporosis medications. INTRODUCTION Romosozumab appeared as a new osteoporosis medication in Japan in 2019. It is an anti-sclerostin antibody, which increases bone formation and suppresses bone resorption. The aim of our study was to elucidate the clinical effects, safety, and predictors of the effects of one-year romosozumab treatment. METHODS This study was an observational study designed as a pre-post study in 262 patients. Romosozumab (210 mg) was administered subcutaneously once every 4 weeks during 12 months. We focused on incidence of new fractures, safety, bone mineral density (BMD) at the spine and total hip, and bone metabolism markers. RESULTS There were five cases of new fractures during one-year romosozumab treatment. There were no fatal adverse events. Percent changes from baseline in the spine and total hip BMD after 12 months of romosozumab treatment were 10.67% and 2.04%, respectively. Romosozumab had better effects in cases of severe osteoporosis with low spine BMD, high TRACP-5b, and high iP1NP at the start of romosozumab treatment. The percent change in the spine BMD at 12 months was significantly lower in the group transitioning from bisphosphonates than in the group not previously treated with other anti-osteoporosis medications. CONCLUSION Romosozumab is an effective treatment for spine osteoporosis because it significantly increases the percent change in the spine BMD at 12 months. The percent change in the spine BMD is higher in patients not previously treated with other anti-osteoporosis medications.
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Affiliation(s)
- A Tominaga
- Department of Orthopedic Surgery, Tokyo Women's Medical University, 8-1 Kawadacho Shinjuku-ku, Tokyo, Japan
| | - K Wada
- Department of Orthopedic Surgery, Tokyo Women's Medical University, 8-1 Kawadacho Shinjuku-ku, Tokyo, Japan.
| | - K Okazaki
- Department of Orthopedic Surgery, Tokyo Women's Medical University, 8-1 Kawadacho Shinjuku-ku, Tokyo, Japan
| | - H Nishi
- Hasuda Hospital, 1662-1 Negane Hasudashi, Saitama, Japan
| | - Y Terayama
- Hasuda Hospital, 1662-1 Negane Hasudashi, Saitama, Japan
| | - Y Kato
- Kita Shinagawa 3rd Hospital, 3-3-7 Kitashinagawa Shinagawa-ku, Tokyo, Japan
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Tominaga A, Wada K, Kato Y, Nishi H, Terayama Y, Okazaki K. Early clinical effects, safety, and appropriate selection of bone markers in romosozumab treatment for osteoporosis patients: a 6-month study. Osteoporos Int 2021; 32:653-661. [PMID: 32979066 DOI: 10.1007/s00198-020-05639-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [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: 06/09/2020] [Accepted: 09/11/2020] [Indexed: 01/22/2023]
Abstract
UNLABELLED Our 6-month study showed the usefulness of romosozumab for preventing fractures and its safety. It was effective in patients with low baseline spine BMD, high TRACP-5b, and high iP1NP. Percent change from baseline of TRACP-5b and iP1NP after 1 month correlated with that from baseline of BMD after four to 6-month treatment. INTRODUCTION Romosozumab appeared as a new osteoporosis medication in Japan in 2019. It is an anti-sclerostin antibody which increases bone formation and suppresses bone resorption. In this study, we analyzed the actual clinical effects, adverse effects, and the optimal way to evaluate the treatment. METHODS Romosozumab was administered as subcutaneous injection of 210 mg once every 4 weeks. We conducted pre-post study in 185 patients treated for 6 months. We focused on the incidence of new vertebral fractures, safety, bone mineral density (BMD) at the spine and total hip, and bone metabolism markers. We evaluated BMD before romosozumab treatment and after 4 to 6 months and performed the serum analysis before romosozumab treatment, after 1, 3, and 6 months. RESULTS There was no new fracture during treatment, and there was no fatal adverse event including cardiovascular disease. Since percent changes from baseline of the spine and total hip BMD were 6.34% and 1.53% after 4- to 6-month treatment, the treatment was effective for spine osteoporosis. Tartrate-resistant acid phosphatase 5b (TRACP-5b) and intact type I procollagen N-terminal propeptide (iP1NP) had significant changes during romosozumab treatment (p < 0.05). Percent change from baseline of TRACP-5b and iP1NP after 1 month correlated with percent change from baseline of BMD after 4 to 6 months of treatment. CONCLUSION Romosozumab is effective in preventing fractures and useful for increasing the spine BMD. Also, romosozumab is relatively safe to use. It is especially effective in patients with low baseline spine BMD, high TRACP-5b, and high iP1NP.
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Affiliation(s)
- A Tominaga
- Department of Orthopedic Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - K Wada
- Department of Orthopedic Surgery, Tokyo Women's Medical University, Tokyo, Japan.
| | - Y Kato
- Kita Shinagawa 3rd Hospital, Tokyo, Japan
| | - H Nishi
- Hasuda Hospital, Saitama, Japan
| | | | - K Okazaki
- Department of Orthopedic Surgery, Tokyo Women's Medical University, Tokyo, Japan
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Ukai Y, Nishiyama Y, Okazaki K, Maki H, Naito A. A highly sensitive and specific method to evaluate viable fungal burden of Aspergillus fumigatus in mice by RT-qPCR for 18S ribosomal RNA. J Microbiol Methods 2021; 184:106214. [PMID: 33811935 DOI: 10.1016/j.mimet.2021.106214] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/11/2021] [Accepted: 03/29/2021] [Indexed: 10/21/2022]
Abstract
Potent fungicidal activity is one of the key factors of antifungals to overcome invasive pulmonary aspergillosis (IPA). To date, quantification of Aspergillus DNA in the lungs and galactomannan (GM) in serum or bronchoalveolar lavage fluid have been developed as general methods for measuring fungal burden in IPA animal models. However, GM quantification is not supposed to be a suitable method for precise evaluation of the fungicidal effects of antifungals, because killed Aspergillus hyphae can release GM for a certain period until they are eliminated by the host. Therefore, in terms of detecting viable fungal burden of Aspergillus, quantification of Aspergillus DNA has been thought to be a suitable method. Here, to obtain a method with much higher sensitivity, we applied reverse transcription quantitative PCR (RT-qPCR) for A. fumigatus 18S ribosomal RNA to measure the viable fungal burden in murine IPA models. Prior to in vivo tests, we confirmed that the sensitivity of 18S rRNA was nearly 50-fold higher than that of 18S ribosomal DNA in vitro. This highly sensitive method made it possible to evaluate the fungicidal effects of antifungals in a low-inoculation murine IPA model. In this model, single administrations of higher doses of voriconazole and posaconazole, which have fungicidal activity, were able to display fungicidal effects with ≥1 log10 reductions by 18S rRNA quantification, whereas significant reductions in serum GM were not observed. These results suggest that 18S rRNA quantification is a powerful tool for screening novel antifungals with potent fungicidal activity only after a single administration.
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Affiliation(s)
- Yuuta Ukai
- Laboratory for Drug Discovery and Disease Research, Shionogi & Co., Ltd., Osaka, Japan; Research Area for Anti-infectious Drug Efficacy Evaluation, Shionogi TechnoAdvance Research Co., Ltd., Osaka, Japan.
| | - Yuri Nishiyama
- Laboratory for Drug Discovery and Disease Research, Shionogi & Co., Ltd., Osaka, Japan
| | - Kenichi Okazaki
- Laboratory for Drug Discovery and Disease Research, Shionogi & Co., Ltd., Osaka, Japan
| | - Hideki Maki
- Laboratory for Drug Discovery and Disease Research, Shionogi & Co., Ltd., Osaka, Japan
| | - Akira Naito
- Laboratory for Drug Discovery and Disease Research, Shionogi & Co., Ltd., Osaka, Japan
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Kuroda K, Arai Y, Rezaei N, Kunisada S, Sakuragi S, Alaei M, Kinoshita Y, Bareille C, Noguchi R, Nakayama M, Akebi S, Sakano M, Kawaguchi K, Arita M, Ideta S, Tanaka K, Kitazawa H, Okazaki K, Tokunaga M, Haga Y, Shin S, Suzuki HS, Arita R, Kondo T. Devil's staircase transition of the electronic structures in CeSb. Nat Commun 2020; 11:2888. [PMID: 32514054 PMCID: PMC7280508 DOI: 10.1038/s41467-020-16707-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 05/15/2020] [Indexed: 12/02/2022] Open
Abstract
Solids with competing interactions often undergo complex phase transitions with a variety of long-periodic modulations. Among such transition, devil's staircase is the most complex phenomenon, and for it, CeSb is the most famous material, where a number of the distinct phases with long-periodic magnetostructures sequentially appear below the Néel temperature. An evolution of the low-energy electronic structure going through the devil's staircase is of special interest, which has, however, been elusive so far despite 40 years of intense research. Here, we use bulk-sensitive angle-resolved photoemission spectroscopy and reveal the devil's staircase transition of the electronic structures. The magnetic reconstruction dramatically alters the band dispersions at each transition. Moreover, we find that the well-defined band picture largely collapses around the Fermi energy under the long-periodic modulation of the transitional phase, while it recovers at the transition into the lowest-temperature ground state. Our data provide the first direct evidence for a significant reorganization of the electronic structures and spectral functions occurring during the devil's staircase.
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Affiliation(s)
- Kenta Kuroda
- ISSP, University of Tokyo, Kashiwa, Chiba, 277-8581, Japan.
| | - Y Arai
- ISSP, University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - N Rezaei
- Department of Physics, Isfahan University of Technology, 84156-83111, Isfahan, Iran
| | - S Kunisada
- ISSP, University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - S Sakuragi
- ISSP, University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - M Alaei
- Department of Physics, Isfahan University of Technology, 84156-83111, Isfahan, Iran
| | - Y Kinoshita
- ISSP, University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - C Bareille
- ISSP, University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - R Noguchi
- ISSP, University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - M Nakayama
- ISSP, University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - S Akebi
- ISSP, University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - M Sakano
- ISSP, University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
- Department of Applied Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - K Kawaguchi
- ISSP, University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - M Arita
- Hiroshima Synchrotron Center, Hiroshima University, Higashi-Hiroshima, 739-0046, Japan
| | - S Ideta
- UVSOR Facility, Institute for Molecular Science, Okazaki, 444-8585, Japan
| | - K Tanaka
- UVSOR Facility, Institute for Molecular Science, Okazaki, 444-8585, Japan
| | - H Kitazawa
- National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, 305-0047, Japan
| | - K Okazaki
- ISSP, University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - M Tokunaga
- ISSP, University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - Y Haga
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan
| | - S Shin
- ISSP, University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - H S Suzuki
- ISSP, University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - R Arita
- Department of Applied Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Takeshi Kondo
- ISSP, University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
- Trans-scale Quantum Science Institute, University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan
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11
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Hashimoto D, Mizuma M, Kumamaru H, Miyata H, Chikamoto A, Igarashi H, Itoi T, Egawa S, Kodama Y, Satoi S, Hamada S, Mizumoto K, Yamaue H, Yamamoto M, Kakeji Y, Seto Y, Baba H, Unno M, Shimosegawa T, Okazaki K. Risk model for severe postoperative complications after total pancreatectomy based on a nationwide clinical database. Br J Surg 2020; 107:734-742. [PMID: 32003458 DOI: 10.1002/bjs.11437] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 07/18/2019] [Accepted: 10/28/2019] [Indexed: 01/09/2023]
Abstract
BACKGROUND Total pancreatectomy is required to completely clear tumours that are locally advanced or located in the centre of the pancreas. However, reports describing clinical outcomes after total pancreatectomy are rare. The aim of this retrospective observational study was to assess clinical outcomes following total pancreatectomy using a nationwide registry and to create a risk model for severe postoperative complications. METHODS Patients who underwent total pancreatectomy from 2013 to 2017, and who were recorded in the Japan Society of Gastroenterological Surgery and Japanese Society of Hepato-Biliary-Pancreatic Surgery database, were included. Severe complications at 30 days were defined as those with a Clavien-Dindo grade III needing reoperation, or grade IV-V. Occurrence of severe complications was modelled using data from patients treated from 2013 to 2016, and the accuracy of the model tested among patients from 2017 using c-statistics and a calibration plot. RESULTS A total of 2167 patients undergoing total pancreatectomy were included. Postoperative 30-day and in-hospital mortality rates were 1·0 per cent (22 of 2167 patients) and 2·7 per cent (58 of 167) respectively, and severe complications developed in 6·0 per cent (131 of 2167). Factors showing a strong positive association with outcome in this risk model were the ASA performance status grade and combined arterial resection. In the test cohort, the c-statistic of the model was 0·70 (95 per cent c.i. 0·59 to 0·81). CONCLUSION The risk model may be used to predict severe complications after total pancreatectomy.
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Affiliation(s)
- D Hashimoto
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto, Japan.,Department of Gastroenterological Surgery, Omuta Tenryo Hospital, Fukuoka, Japan
| | - M Mizuma
- Department of Surgery, Tohoku University, Miyagi, Japan
| | - H Kumamaru
- Department of Healthcare Quality Assessment, University of Tokyo, Tokyo, Japan
| | - H Miyata
- Department of Healthcare Quality Assessment, University of Tokyo, Tokyo, Japan.,Department of Health Policy and Management, Keio University, Tokyo, Japan
| | - A Chikamoto
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto, Japan
| | - H Igarashi
- Department of Medicine and Bioregulatory Science, Kyushu University, Fukuoka, Japan
| | - T Itoi
- Department of Gastroenterology, Tokyo Medical University, Tokyo, Japan
| | - S Egawa
- Division of International Cooperation for Disaster Medicine, Tohoku University, Miyagi, Japan
| | - Y Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University, Kobe, Japan
| | - S Satoi
- Department of Surgery, Kansai Medical University, Osaka, Japan
| | - S Hamada
- Division of Gastroenterology, Tohoku University, Miyagi, Japan
| | - K Mizumoto
- Cancer Centre, Kyushu University Hospital, Fukuoka, Japan
| | - H Yamaue
- Second Department of Surgery, Wakayama Medical University, Wakayama, Japan
| | - M Yamamoto
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan
| | - Y Kakeji
- Division of Gastrointestinal Surgery, Department of Surgery, Kobe University, Kobe, Japan
| | - Y Seto
- Department of Gastrointestinal Surgery, University of Tokyo, Tokyo, Japan
| | - H Baba
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto, Japan
| | - M Unno
- Department of Surgery, Tohoku University, Miyagi, Japan
| | - T Shimosegawa
- Department of Gastroenterology, South Miyagi Medical Centre, Miyagi, Japan
| | - K Okazaki
- Department of Gastroenterology and Hepatology, Kansai Medical University, Osaka, Japan
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12
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Yamaguchi K, Yoshitomi H, Nakamura T, Okazaki K, Morita Y, Kawahara Y, Kagawa Y, Ouchi T, Sato H, Watanabe N, Endo A, Tanabe K. P1520 Aortic flow reversal caused by aortic regurgitation deteriorates renal function. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Chronic kidney disease is a growing public health problem. Renal dysfunction is known as a strong risk factor for cardiovascular disease and end-stage renal failure. The presence of pan-diastolic flow reversal in the abdominal aorta is a very specific sign of severe aortic regurgitation (AR). A higher aortic reverse/forward flow ratio is associated with lower intrarenal forward flow. However, the influence of AR on renal function has been poorly understood. We hypothesized that the aortic flow reversal reduces the renal artery forward flow and accordingly leads to renal dysfunction in patients with severe AR.
Methods
The study consisted of 21 consecutive patients (mean age 69 ± 11 years) with severe AR who underwent aortic valve replacement (AVR). We compared echocardiographic indices and the glomerular filtration rate (GFR) before and 603 ± 541 days after AVR.
Results
Blood pressure was 122 ± 16/54 ± 8 mmHg before AVR and 123 ± 16/76 ± 11 mmHg after AVR. After AVR, left ventricular (LV) end-diastolic dimension decreased from 57 ± 9 to 44 ± 5 mm and LV ejection fraction increased from 58 ± 12 to 60 ± 11 %. Estimated GFR significantly increased from 62.9 ± 18.9 to 71.8 ± 18.1 mL/min per 1.73 m2 after AVR (p = 0.003).
Conclusions An increase in aortic flow reversal caused by severe AR reduces forward flow into the kidney and thereby deteriorates renal function. This study demonstrated a key mediating role of central hemodynamic factors, particularly an exaggerated aortic flow reversal in renal dysfunction and severe AR.
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Affiliation(s)
- K Yamaguchi
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - H Yoshitomi
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - T Nakamura
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - K Okazaki
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - Y Morita
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - Y Kawahara
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - Y Kagawa
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - T Ouchi
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - H Sato
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - N Watanabe
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - A Endo
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - K Tanabe
- Shimane University, Faculty of Medicine, Izumo, Japan
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13
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Gong T, Habara H, Sumioka K, Yoshimoto M, Hayashi Y, Kawazu S, Otsuki T, Matsumoto T, Minami T, Abe K, Aizawa K, Enmei Y, Fujita Y, Ikegami A, Makiyama H, Okazaki K, Okida K, Tsukamoto T, Arikawa Y, Fujioka S, Iwasa Y, Lee S, Nagatomo H, Shiraga H, Yamanoi K, Wei MS, Tanaka KA. Direct observation of imploded core heating via fast electrons with super-penetration scheme. Nat Commun 2019; 10:5614. [PMID: 31819056 PMCID: PMC6901506 DOI: 10.1038/s41467-019-13574-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 11/08/2019] [Indexed: 11/09/2022] Open
Abstract
Fast ignition (FI) is a promising approach for high-energy-gain inertial confinement fusion in the laboratory. To achieve ignition, the energy of a short-pulse laser is required to be delivered efficiently to the pre-compressed fuel core via a high-energy electron beam. Therefore, understanding the transport and energy deposition of this electron beam inside the pre-compressed core is the key for FI. Here we report on the direct observation of the electron beam transport and deposition in a compressed core through the stimulated Cu Kα emission in the super-penetration scheme. Simulations reproducing the experimental measurements indicate that, at the time of peak compression, about 1% of the short-pulse energy is coupled to a relatively low-density core with a radius of 70 μm. Analysis with the support of 2D particle-in-cell simulations uncovers the key factors improving this coupling efficiency. Our findings are of critical importance for optimizing FI experiments in a super-penetration scheme.
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Affiliation(s)
- T Gong
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan.,Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang, Sichuan, 621900, People's Republic of China
| | - H Habara
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan.
| | - K Sumioka
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - M Yoshimoto
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Y Hayashi
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - S Kawazu
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - T Otsuki
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - T Matsumoto
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - T Minami
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - K Abe
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - K Aizawa
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Y Enmei
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Y Fujita
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - A Ikegami
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - H Makiyama
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - K Okazaki
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - K Okida
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - T Tsukamoto
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Y Arikawa
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - S Fujioka
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Y Iwasa
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - S Lee
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - H Nagatomo
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - H Shiraga
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - K Yamanoi
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - M S Wei
- Laboratory for Laser Energetics, University of Rochester, Rochester, NY, 14623-1299, USA
| | - K A Tanaka
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan. .,Extreme Light Infrastructure: Nuclear Physics, 30 Reatorului, Magurele-Bucharest, 077125, Romania.
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14
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Suzuki H, Kobayashi T, Miyasaka S, Okazaki K, Yoshida T, Horio M, Ambolode LCC, Ota Y, Yamamoto H, Shin S, Hashimoto M, Lu DH, Shen ZX, Tajima S, Fujimori A. Band-dependent superconducting gap in SrFe 2(As 0.65P 0.35) 2 studied by angle-resolved photoemission spectroscopy. Sci Rep 2019; 9:16418. [PMID: 31712663 PMCID: PMC6848191 DOI: 10.1038/s41598-019-52887-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 10/24/2019] [Indexed: 11/21/2022] Open
Abstract
The isovalent-substituted iron pnictide compound SrFe2(As1−xPx)2 exhibits multiple evidence for nodal superconductivity via various experimental probes, such as the penetration depth, nuclear magnetic resonance and specific heat measurements. The direct identification of the nodal superconducting (SC) gap structure is challenging, partly because the presence of nodes is not protected by symmetry but instead caused by an accidental sign change of the order parameter, and also because of the three-dimensionality of the electronic structure. We have studied the SC gaps of SrFe2(As0.65P0.35)2 in three-dimensional momentum space by synchrotron and laser-based angle-resolved photoemission spectroscopy. The three hole Fermi surfaces (FSs) at the zone center have SC gaps with different magnitudes, whereas the SC gaps of the electron FSs at the zone corner are almost isotropic and kz-independent. As a possible nodal SC gap structure, we propose that the SC gap of the outer hole FS changes sign around the Z-X [(0, 0, 2π) − (π, π, 2π)] direction.
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Affiliation(s)
- H Suzuki
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan.
| | - T Kobayashi
- Department of Physics, Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - S Miyasaka
- Department of Physics, Osaka University, Toyonaka, Osaka, 560-8531, Japan.,JST, Transformative Research-Project on Iron Pnictides (TRIP), Chiyoda, Tokyo, 102-0075, Japan
| | - K Okazaki
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Institute for Solid State Physics (ISSP), University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - T Yoshida
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan.,JST, Transformative Research-Project on Iron Pnictides (TRIP), Chiyoda, Tokyo, 102-0075, Japan
| | - M Horio
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - L C C Ambolode
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Y Ota
- Institute for Solid State Physics (ISSP), University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - H Yamamoto
- Institute for Solid State Physics (ISSP), University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - S Shin
- JST, Transformative Research-Project on Iron Pnictides (TRIP), Chiyoda, Tokyo, 102-0075, Japan.,Institute for Solid State Physics (ISSP), University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - M Hashimoto
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California, 94305, USA
| | - D H Lu
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California, 94305, USA
| | - Z-X Shen
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California, 94305, USA
| | - S Tajima
- Department of Physics, Osaka University, Toyonaka, Osaka, 560-8531, Japan.,JST, Transformative Research-Project on Iron Pnictides (TRIP), Chiyoda, Tokyo, 102-0075, Japan
| | - A Fujimori
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan. .,JST, Transformative Research-Project on Iron Pnictides (TRIP), Chiyoda, Tokyo, 102-0075, Japan.
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15
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Kelemen P, Aines R, Bennett E, Benson S, Carter E, Coggon J, de Obeso J, Evans O, Gadikota G, Dipple G, Godard M, Harris M, Higgins J, Johnson K, Kourim F, Lafay R, Lambart S, Manning C, Matter J, Michibayashi K, Morishita T, Noël J, Okazaki K, Renforth P, Robinson B, Savage H, Skarbek R, Spiegelman M, Takazawa E, Teagle D, Urai J, Wilcox J. In situ carbon mineralization in ultramafic rocks: Natural processes and possible engineered methods. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.egypro.2018.07.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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16
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Murakami K, Hamai S, Moro-Oka T, Okazaki K, Higaki H, Shimoto T, Ikebe S, Nakashima Y. Variable tibiofemoral articular contact stress in fixed-bearing total knee arthroplasties. Orthop Traumatol Surg Res 2018; 104:177-183. [PMID: 29274859 DOI: 10.1016/j.otsr.2017.11.015] [Citation(s) in RCA: 1] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 06/14/2017] [Accepted: 11/17/2017] [Indexed: 02/02/2023]
Abstract
BACKGROUND Rotational allowance at the tibiofemoral joint would be required during deep flexion. However, the amount of flexion and rotation has not been investigated in modern total knee arthroplasty (TKA) designs. The present study aimed to determine the contact stress in five posterior-stabilized fixed-bearing TKA designs. HYPOTHESIS We hypothesized that the contact area and stresses at the tibiofemoral articular surfaces vary according to the type of implant design and tested condition. MATERIALS AND METHODS The contact area and mean and peak contact stresses at the tibiofemoral articular surfaces were determined when a compressive load of 1200N was applied to a NexGen LPS Flex, Scorpio NRG, Genesis II, PFC Sigma, and Foundation implant. Measurements were performed at 0° and 45° flexion with 0°, 5°, 10°, and 15° rotation, and at 90° and 135° flexion with 0, 5°, 10°, 15°, and 20° rotation. RESULTS The LPS Flex showed that the femoral component could not achieve 20° rotation at 135° flexion. The Scorpio NRG showed less than 20MPa of contact stress at all conditions. The Genesis II showed higher contact stress than 20MPa at 135° flexion with 20° rotation. The PFC Sigma showed that the femoral component could not achieve >10° rotation at any flexion angle. The Foundation showed more than 20MPa of contact stress at 90° flexion with 20° rotation and at 135° flexion with 10°, 15°, and 20° rotation. DISCUSSION Surgeons should be more aware of the variable contact conditions of the tibiofemoral articular surfaces in individual TKA designs. LEVEL OF EVIDENCE Level IV, basic science study.
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Affiliation(s)
- K Murakami
- Department of orthopaedic surgery, Graduate school of medical sciences, Kyushu university, 1-3-3, Maidashi, 812-8582 Higashi-ku, Fukuoka, Japan
| | - S Hamai
- Department of orthopaedic surgery, Graduate school of medical sciences, Kyushu university, 1-3-3, Maidashi, 812-8582 Higashi-ku, Fukuoka, Japan.
| | - T Moro-Oka
- Department of orthopaedic surgery, Graduate school of medical sciences, Kyushu university, 1-3-3, Maidashi, 812-8582 Higashi-ku, Fukuoka, Japan; Moro-oka orthopaedic hospital, 101-3, Katawana Nakagawa-machi, 811-1201 Chikushi-gun, Fukuoka, Japan
| | - K Okazaki
- Department of orthopaedic surgery, Graduate school of medical sciences, Kyushu university, 1-3-3, Maidashi, 812-8582 Higashi-ku, Fukuoka, Japan
| | - H Higaki
- Department of biorobotics, faculty of engineering, Kyushu Sangyo university, 2-3-1, Matsugadai, 813-8583 Higashi-ku, Fukuoka, Japan
| | - T Shimoto
- Department of information and systems engineering, faculty of information engineering, Fukuoka institute of technology, 3-30-1, Wajiro-higashi, 811-0295 Higashi-ku, Fukuoka, Japan
| | - S Ikebe
- Department of biorobotics, faculty of engineering, Kyushu Sangyo university, 2-3-1, Matsugadai, 813-8583 Higashi-ku, Fukuoka, Japan
| | - Y Nakashima
- Department of orthopaedic surgery, Graduate school of medical sciences, Kyushu university, 1-3-3, Maidashi, 812-8582 Higashi-ku, Fukuoka, Japan
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17
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Ishihara K, Okazaki K, Akiyama T, Akasaki Y, Nakashima Y. Characterisation of osteophytes as an autologous bone graft source: An experimental study in vivo and in vitro. Bone Joint Res 2017; 6:73-81. [PMID: 28148490 PMCID: PMC5331175 DOI: 10.1302/2046-3758.62.bjr-2016-0199.r1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 08/08/2016] [Accepted: 11/28/2016] [Indexed: 12/02/2022] Open
Abstract
Objectives Osteophytes are products of active endochondral and intramembranous ossification, and therefore could theoretically provide significant efficacy as bone grafts. In this study, we compared the bone mineralisation effectiveness of osteophytes and cancellous bone, including their effects on secretion of growth factors and anabolic effects on osteoblasts. Methods Osteophytes and cancellous bone obtained from human patients were transplanted onto the calvaria of severe combined immunodeficient mice, with Calcein administered intra-peritoneally for fluorescent labelling of bone mineralisation. Conditioned media were prepared using osteophytes and cancellous bone, and growth factor concentration and effects of each graft on proliferation, differentiation and migration of osteoblastic cells were assessed using enzyme-linked immunosorbent assays, MTS ((3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium)) assays, quantitative real-time polymerase chain reaction, and migration assays. Results After six weeks, the area of mineralisation was significantly higher for the transplanted osteophytes than for the cancellous bone (43803 μm2, sd 14660 versus 9421 μm2, sd 5032, p = 0.0184, one-way analysis of variance). Compared with cancellous bone, the conditioned medium prepared using osteophytes contained a significantly higher amounts of transforming growth factor (TGF)-β1 (471 pg/ml versus 333 pg/ml, p = 0.0001, Wilcoxon rank sum test), bone morphogenetic protein (BMP)-2 (47.75 pg/ml versus 32 pg/ml, p = 0.0214, Wilcoxon rank sum test) and insulin-like growth factor (IGF)-1 (314.5 pg/ml versus 191 pg/ml, p = 0.0418, Wilcoxon rank sum test). The stronger effects of osteophytes towards osteoblasts in terms of a higher proliferation rate, upregulation of gene expression of differentiation markers such as alpha-1 type-1 collagen and alkaline phosphate, and higher migration, compared with cancellous bone, was confirmed. Conclusion We provide evidence of favourable features of osteophytes for bone mineralisation through a direct effect on osteoblasts. The acceleration in metabolic activity of the osteophyte provides justification for future studies evaluating the clinical use of osteophytes as autologous bone grafts. Cite this article: K. Ishihara, K. Okazaki, T. Akiyama, Y. Akasaki, Y. Nakashima. Characterisation of osteophytes as an autologous bone graft source: An experimental study in vivo and in vitro. Bone Joint Res 2017;6:73–81. DOI: 10.1302/2046-3758.62.BJR-2016-0199.R1.
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Affiliation(s)
- K Ishihara
- Department of Orthopedic Surgery, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
| | - K Okazaki
- Department of Orthopedic Surgery, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
| | | | - Y Akasaki
- Department of Orthopedic Surgery, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
| | - Y Nakashima
- Department of Orthopedic Surgery, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
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Kobayashi Y, Magara S, Okazaki K, Komatsubara T, Saitsu H, Matsumoto N, Kato M, Tohyama J. Megalencephaly, polymicrogyria and ribbon-like band heterotopia: A new cortical malformation. Brain Dev 2016; 38:950-953. [PMID: 27381655 DOI: 10.1016/j.braindev.2016.06.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 05/27/2016] [Accepted: 06/12/2016] [Indexed: 11/25/2022]
Abstract
Megalencephalic polymicrogyria syndromes include megalencephaly-capillary malformation and megalencephaly-polymicrogyria-polydactyly-hydrocephalus. Recent genetic studies have identified that genes in the PI3K-AKT pathway are involved in the pathogenesis of these disorders. Herein, we report a patient who presented with developmental delay, epilepsy and peculiar neuroimaging findings of megalencephaly, polymicrogyria, and symmetrical band heterotopia in the periventricular region. The heterotopias exhibited inhomogeneous signals with undulatory mixtures of gray and white matter, resembling ribbon-like heterotopia, with a predominance in the temporal to occipital regions. These neuroradiological findings were not consistent with those in known megalencephalic polymicrogyria syndromes. No genetic abnormality was identified through whole-exome sequencing. The neuroimaging findings of this patient may represent a novel cortical malformation involving megalencephaly with polymicrogyria and ribbon-like band heterotopia.
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Affiliation(s)
- Yu Kobayashi
- Department of Child Neurology, Nishi-Niigata Chuo National Hospital, Japan.
| | - Shinichi Magara
- Department of Child Neurology, Nishi-Niigata Chuo National Hospital, Japan
| | - Kenichi Okazaki
- Department of Child Neurology, Nishi-Niigata Chuo National Hospital, Japan
| | - Takao Komatsubara
- Department of Child Neurology, Nishi-Niigata Chuo National Hospital, Japan
| | - Hirotomo Saitsu
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Japan
| | - Naomichi Matsumoto
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Japan
| | - Mitsuhiro Kato
- Department of Pediatrics, Showa University School of Medicine, Japan
| | - Jun Tohyama
- Department of Child Neurology, Nishi-Niigata Chuo National Hospital, Japan; Niigata University Medical and Dental Hospital, Japan
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Terao C, Ota M, Shiokawa M, Kuriyama K, Kodama Y, Uchida K, Yamaguchi I, Kawaguchi T, Kawaguchi S, Higasa K, Mimori T, Okazaki K, Chiba T, Kawa S, Matsuda F. OP0238 Fcgr2b and Multiple Hla Loci Are Associated with Susceptibility To IGG4-Related Disease. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3046] [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: 11/03/2022]
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Jais B, Rebours V, Malleo G, Salvia R, Fontana M, Maggino L, Bassi C, Manfredi R, Moran R, Lennon AM, Zaheer A, Wolfgang C, Hruban R, Marchegiani G, Fernández Del Castillo C, Brugge W, Ha Y, Kim MH, Oh D, Hirai I, Kimura W, Jang JY, Kim SW, Jung W, Kang H, Song SY, Kang CM, Lee WJ, Crippa S, Falconi M, Gomatos I, Neoptolemos J, Milanetto AC, Sperti C, Ricci C, Casadei R, Bissolati M, Balzano G, Frigerio I, Girelli R, Delhaye M, Bernier B, Wang H, Jang KT, Song DH, Huggett MT, Oppong KW, Pererva L, Kopchak KV, Del Chiaro M, Segersvard R, Lee LS, Conwell D, Osvaldt A, Campos V, Aguero Garcete G, Napoleon B, Matsumoto I, Shinzeki M, Bolado F, Fernandez JMU, Keane MG, Pereira SP, Acuna IA, Vaquero EC, Angiolini MR, Zerbi A, Tang J, Leong RW, Faccinetto A, Morana G, Petrone MC, Arcidiacono PG, Moon JH, Choi HJ, Gill RS, Pavey D, Ouaïssi M, Sastre B, Spandre M, De Angelis CG, Rios-Vives MA, Concepcion-Martin M, Ikeura T, Okazaki K, Frulloni L, Messina O, Lévy P. Serous cystic neoplasm of the pancreas: a multinational study of 2622 patients under the auspices of the International Association of Pancreatology and European Pancreatic Club (European Study Group on Cystic Tumors of the Pancreas). Gut 2016; 65:305-12. [PMID: 26045140 DOI: 10.1136/gutjnl-2015-309638] [Citation(s) in RCA: 173] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2015] [Accepted: 05/11/2015] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Serous cystic neoplasm (SCN) is a cystic neoplasm of the pancreas whose natural history is poorly known. The purpose of the study was to attempt to describe the natural history of SCN, including the specific mortality. DESIGN Retrospective multinational study including SCN diagnosed between 1990 and 2014. RESULTS 2622 patients were included. Seventy-four per cent were women, and median age at diagnosis was 58 years (16-99). Patients presented with non-specific abdominal pain (27%), pancreaticobiliary symptoms (9%), diabetes mellitus (5%), other symptoms (4%) and/or were asymptomatic (61%). Fifty-two per cent of patients were operated on during the first year after diagnosis (median size: 40 mm (2-200)), 9% had resection beyond 1 year of follow-up (3 years (1-20), size at diagnosis: 25 mm (4-140)) and 39% had no surgery (3.6 years (1-23), 25.5 mm (1-200)). Surgical indications were (not exclusive) uncertain diagnosis (60%), symptoms (23%), size increase (12%), large size (6%) and adjacent organ compression (5%). In patients followed beyond 1 year (n=1271), size increased in 37% (growth rate: 4 mm/year), was stable in 57% and decreased in 6%. Three serous cystadenocarcinomas were recorded. Postoperative mortality was 0.6% (n=10), and SCN's related mortality was 0.1% (n=1). CONCLUSIONS After a 3-year follow-up, clinical relevant symptoms occurred in a very small proportion of patients and size slowly increased in less than half. Surgical treatment should be proposed only for diagnosis remaining uncertain after complete workup, significant and related symptoms or exceptionally when exists concern with malignancy. This study supports an initial conservative management in the majority of patients with SCN. TRIAL REGISTRATION NUMBER IRB 00006477.
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Affiliation(s)
- B Jais
- Department of Gastroenterology and Pancreatology, Beaujon Hospital, AP-HP, Clichy, France
| | - V Rebours
- Department of Gastroenterology and Pancreatology, Beaujon Hospital, AP-HP, Clichy, France
| | - G Malleo
- The Pancreas Institute, G.B. Rossi Hospital, University of Verona Hospital Trust, Verona, Italy
| | - R Salvia
- The Pancreas Institute, G.B. Rossi Hospital, University of Verona Hospital Trust, Verona, Italy
| | - M Fontana
- The Pancreas Institute, G.B. Rossi Hospital, University of Verona Hospital Trust, Verona, Italy
| | - L Maggino
- The Pancreas Institute, G.B. Rossi Hospital, University of Verona Hospital Trust, Verona, Italy
| | - C Bassi
- The Pancreas Institute, G.B. Rossi Hospital, University of Verona Hospital Trust, Verona, Italy
| | - R Manfredi
- The Pancreas Institute, G.B. Rossi Hospital, University of Verona Hospital Trust, Verona, Italy
| | - R Moran
- Division of Gastroenterology and Hepatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Division of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - A M Lennon
- Division of Gastroenterology and Hepatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Division of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - A Zaheer
- Division of Gastroenterology and Hepatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Division of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - C Wolfgang
- Division of Gastroenterology and Hepatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Division of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - R Hruban
- Division of Gastroenterology and Hepatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Division of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - G Marchegiani
- Departments of Surgery and Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - C Fernández Del Castillo
- Departments of Surgery and Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - W Brugge
- Departments of Surgery and Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Y Ha
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - M H Kim
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - D Oh
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - I Hirai
- First Department of Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - W Kimura
- First Department of Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - J Y Jang
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - S W Kim
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - W Jung
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - H Kang
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - S Y Song
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - C M Kang
- Department of Surgery, Yonsei University College of Medicine, Pancreaticobiliary Cancer Clinic, Yonsei Cancer Center, Severance Hospital, Seoul, Korea
| | - W J Lee
- Department of Surgery, Yonsei University College of Medicine, Pancreaticobiliary Cancer Clinic, Yonsei Cancer Center, Severance Hospital, Seoul, Korea
| | - S Crippa
- Pancreatic Surgery Unit, Department of Surgery, Polytechnic University of Marche Region, Ancona-Torrette, Italy
| | - M Falconi
- Pancreatic Surgery Unit, Department of Surgery, Polytechnic University of Marche Region, Ancona-Torrette, Italy
| | - I Gomatos
- NIHR Pancreas Biomedical Research Unit, Department of Molecular and Clinical Cancer Medicine, Royal Liverpool University Hospital, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - J Neoptolemos
- NIHR Pancreas Biomedical Research Unit, Department of Molecular and Clinical Cancer Medicine, Royal Liverpool University Hospital, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - A C Milanetto
- Department of Surgery, Oncology and Gastroenterology, 3rd Surgical Clinic, University of Padua, Padua, Italy
| | - C Sperti
- Department of Surgery, Oncology and Gastroenterology, 3rd Surgical Clinic, University of Padua, Padua, Italy
| | - C Ricci
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum-University of Bologna, S. Orsola-Malpighi Hospital, Bologna, Italy
| | - R Casadei
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum-University of Bologna, S. Orsola-Malpighi Hospital, Bologna, Italy
| | - M Bissolati
- Pancreatic Surgery Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - G Balzano
- Pancreatic Surgery Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - I Frigerio
- Hepato-Pancreato-Biliary Unit, Pederzoli Hospital, Peschiera del Garda, Italy
| | - R Girelli
- Hepato-Pancreato-Biliary Unit, Pederzoli Hospital, Peschiera del Garda, Italy
| | - M Delhaye
- Department of Gastroenterology, Hepatopancreatology and GI Oncology, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - B Bernier
- Department of Gastroenterology, Hepatopancreatology and GI Oncology, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - H Wang
- Institute of Hepatopancreatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - K T Jang
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - D H Song
- Department of Pathology, Gyeongsang National University School of Medicine, Jinju, Korea
| | - M T Huggett
- Hepato-Pancreato-Biliary Unit, Freeman Hospital, Newcastle upon Tyne, UK
| | - K W Oppong
- Hepato-Pancreato-Biliary Unit, Freeman Hospital, Newcastle upon Tyne, UK
| | - L Pererva
- National Institute of Surgery and Transplantology named after Shalimov, Kiev, Ukraine
| | - K V Kopchak
- National Institute of Surgery and Transplantology named after Shalimov, Kiev, Ukraine
| | - M Del Chiaro
- Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet at Center for Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - R Segersvard
- Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet at Center for Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - L S Lee
- Division of Gastroenterology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - D Conwell
- Division of Gastroenterology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - A Osvaldt
- Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - V Campos
- Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - B Napoleon
- Hôpital Privé Mermoz, Gastroentérologie, Lyon, France
| | - I Matsumoto
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - M Shinzeki
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - F Bolado
- Gastroenterology Department, Hospital de Navarra, Pamplona, Spain
| | | | - M G Keane
- Department of Gastroenterology and Hepatology, University College Hospital, London, UK
| | - S P Pereira
- Department of Gastroenterology and Hepatology, University College Hospital, London, UK
| | - I Araujo Acuna
- Department of Gastroenterology, Hospital Clinic, CIBEREHD, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - E C Vaquero
- Department of Gastroenterology, Hospital Clinic, CIBEREHD, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - M R Angiolini
- Department of Pancreatic Surgery, Humanitas Research Hospital, Rozzano, Milan, Italy
| | - A Zerbi
- Department of Pancreatic Surgery, Humanitas Research Hospital, Rozzano, Milan, Italy
| | - J Tang
- Gastroenterology and Liver Services, Concord Hospital, Sydney, New South Wales, Australia
| | - R W Leong
- Gastroenterology and Liver Services, Concord Hospital, Sydney, New South Wales, Australia
| | - A Faccinetto
- Radiological Department, General Hospital Cá Foncello, Treviso, Italy
| | - G Morana
- Radiological Department, General Hospital Cá Foncello, Treviso, Italy
| | - M C Petrone
- Division of Gastroenterology and Gastrointestinal Endoscopy, San Raffaele Scientific Institute, Milan, Italy
| | - P G Arcidiacono
- Division of Gastroenterology and Gastrointestinal Endoscopy, San Raffaele Scientific Institute, Milan, Italy
| | - J H Moon
- Department of Internal Medicine, Digestive Disease Center and Research Institute, SoonChunHyang University School of Medicine, Bucheon, Korea
| | - H J Choi
- Department of Internal Medicine, Digestive Disease Center and Research Institute, SoonChunHyang University School of Medicine, Bucheon, Korea
| | - R S Gill
- Department of Gastroenterology, Bankstown-Lidcombe Hospital, Bankstown, New South Wales, Australia
| | - D Pavey
- Department of Gastroenterology, Bankstown-Lidcombe Hospital, Bankstown, New South Wales, Australia
| | - M Ouaïssi
- Department of Digestive Surgery, Timone Hospital, Marseille, France
| | - B Sastre
- Department of Digestive Surgery, Timone Hospital, Marseille, France
| | - M Spandre
- Gastrohepatology Department, San Giovanni Battista Molinette Hospital, University of Turin, Turin, Italy
| | - C G De Angelis
- Gastrohepatology Department, San Giovanni Battista Molinette Hospital, University of Turin, Turin, Italy
| | - M A Rios-Vives
- Gastroenterology Department, Hospital de la Santa Creu i Sant Pau, Institut de Reçerca-IIB Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - M Concepcion-Martin
- Gastroenterology Department, Hospital de la Santa Creu i Sant Pau, Institut de Reçerca-IIB Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - T Ikeura
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Osaka, Japan
| | - K Okazaki
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Osaka, Japan
| | - L Frulloni
- Department of Medicine, Pancreas Center, University of Verona, Verona, Italy
| | - O Messina
- Department of Medicine, Pancreas Center, University of Verona, Verona, Italy
| | - P Lévy
- Department of Gastroenterology and Pancreatology, Beaujon Hospital, AP-HP, Clichy, France
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Khosroshahi A, Wallace ZS, Crowe JL, Akamizu T, Azumi A, Carruthers MN, Chari ST, Della-Torre E, Frulloni L, Goto H, Hart PA, Kamisawa T, Kawa S, Kawano M, Kim MH, Kodama Y, Kubota K, Lerch MM, Löhr M, Masaki Y, Matsui S, Mimori T, Nakamura S, Nakazawa T, Ohara H, Okazaki K, Ryu JH, Saeki T, Schleinitz N, Shimatsu A, Shimosegawa T, Takahashi H, Takahira M, Tanaka A, Topazian M, Umehara H, Webster GJ, Witzig TE, Yamamoto M, Zhang W, Chiba T, Stone JH. International Consensus Guidance Statement on the Management and Treatment of IgG4-Related Disease. Arthritis Rheumatol 2015; 67:1688-99. [PMID: 25809420 DOI: 10.1002/art.39132] [Citation(s) in RCA: 589] [Impact Index Per Article: 65.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 03/19/2015] [Indexed: 02/06/2023]
Affiliation(s)
- A Khosroshahi
- Emory University School of Medicine, Atlanta, Georgia
| | | | - J L Crowe
- University of Tennessee College of Medicine, Chattanooga
| | - T Akamizu
- Wakayama Medical University, Tokyo, Japan
| | - A Azumi
- Kobe Kaisei Hospital, Kobe, Japan
| | - M N Carruthers
- University of British Columbia, Vancouver, British Columbia, Canada
| | | | | | | | - H Goto
- Tokyo Medical University, Tokyo, Japan
| | - P A Hart
- The Ohio State University Medical College and The Ohio State University Wexner Medical Center, Columbus
| | - T Kamisawa
- Tokyo Metropolitan Komagome Hospital, Tokyo, Japan
| | - S Kawa
- Shinshu University, Matsumoto, Japan
| | - M Kawano
- Kanazawa University Graduate School of Medical Sciences and Kanazawa University Hospital, Kanazawa, Japan
| | - M H Kim
- University of Ulsan College of Medicine and Asan Medical Center, Ulsan, Republic of Korea
| | - Y Kodama
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Kubota
- Yokohama City University and Yokohama City University Hospital, Yokohama, Japan
| | - M M Lerch
- University of Greifswald Medical School, Greifswald, Germany
| | - M Löhr
- Karolinska Institutet, Stockholm, Sweden
| | - Y Masaki
- Kanazawa Medical University, Kanazawa, Japan
| | - S Matsui
- University of Toyama, Toyama, Japan
| | - T Mimori
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - S Nakamura
- Kyushu University and Kyushu University Dental Hospital, Fukuoka, Japan
| | - T Nakazawa
- Nagoya City University Graduate School of Medicine, Nagoya, Japan
| | - H Ohara
- Nagoya City University Graduate School of Medicine, Nagoya, Japan
| | - K Okazaki
- Kansai Medical University, Hirakata, Japan
| | - J H Ryu
- Mayo Clinic, Rochester, Minnesota
| | - T Saeki
- Nagaoka Red Cross Hospital, Nagaoka, Japan
| | - N Schleinitz
- Aix-Marseille Université, Assistance Publique Hôpitaux de Marseille, Marseille, France
| | - A Shimatsu
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | | | - H Takahashi
- Sapporo Medical University School of Medicine, Sapporo, Japan
| | - M Takahira
- Kanazawa University Graduate School of Medical Sciences and Kanazawa University Hospital, Kanazawa, Japan
| | - A Tanaka
- Teikyo University School of Medicine, Tokyo, Japan
| | | | - H Umehara
- Kanazawa Medical University, Kanazawa, Japan
| | - G J Webster
- University College London and University College London Hospitals, London, UK
| | | | - M Yamamoto
- Sapporo Medical University School of Medicine, Sapporo, Japan
| | - W Zhang
- Chinese Academy of Medical Sciences and Peking Union Medical College Hospital, Beijing, China
| | - T Chiba
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - J H Stone
- Massachusetts General Hospital, Boston
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- Japanese Ministry of Health, Labor, and Welfare, Amgen, and Genetech
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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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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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Osaki K, Okazaki K, Takayama Y, Mzu-uchi H, Hamai S, Kuwashima U, Murakami K, Kawanami S, Honda H, Iwamoto Y. FRI0045 Evaluation of Articular Cartilage Change of Knee Joint in Rheumatoid Arthritis Using T1ρ Mapping Magnetic Resonance Imaging. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4283] [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: 11/04/2022]
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Horii I, Kawasaki K, Koyama J, Nakayama Y, Nakajima K, Okazaki K, Seiji M. Histidine-rich protein as a possible origin of free amino acids of stratum corneum. Curr Probl Dermatol 2015; 11:301-15. [PMID: 6653157 DOI: 10.1159/000408684] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The origin of free amino acids and/or their metabolites of the stratum corneum was investigated by pulse-chase experiments using hairless mice. Two, 24, 48, and 72 hrs after the animals were pulse-chased with 3H-histidine or 3H-arginine, radioactivity was determined in the following three fractions of the epidermis: the 0.1 N HClO4 soluble, ethanol soluble fraction (Fr. I); the 0.1N NClO4 soluble, ethanol insoluble fraction (Fr. II); and the 0.1 N HClO4 insoluble, 8M urea soluble fraction (Fr. III). Radioactivity of the epidermal proteins was also determined in SDS-PAGE gels by the gel slicing method. At first, 3H-histidine and/or 3H-arginine were predominantly incorporated into Fr. III, especially into a certain epidermal protein which showed little mobility on SDS-PAGE. Subsequently, 3H, once incorporated into Fr. III, appeared to shift from Fr. III to Fr. II and, simultaneously, from the top band(s) to a band of 32,000 daltons. As a result of amino acid analysis, a protein of Fr. II was considered a histidine-rich protein corresponding to HRP-II of the new born rats of Ball et al. After 48 hrs, as the radioactivities of Fr. III and Fr. II decreased remarkably, Fr. I gradually increased in radioactivity. The major radioactive substances in Fr. I at 72 hrs were identified as 3H-histidine and 3H-urocanic acid when 3H-histidine was used as a tracer, and as 3H-arginine, 3H-ornithine, and 3H-citrulline in the case of 3H-arginine. The amino acid composition of the histidine-rich protein was very similar to that of the free amino acids of the stratum corneum in the hairless mouse, in which some amino acid metabolites were considered as their precursor amino acids. These results strongly suggest that the free amino acids and/or their metabolites of the stratum corneum might be the final products of a degradation of the histidine-rich protein.
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Takahashi Y, Fukui T, Kishimoto M, Suzuki R, Mitsuyama T, Sumimoto K, Okazaki T, Sakao M, Sakaguchi Y, Yoshida K, Uchida K, Nishio A, Matsuzaki K, Okazaki K. Phosphorylation of Smad2/3 at the specific linker threonine residue indicates slow-cycling esophageal stem-like cells before re-entry to the cell cycle. Dis Esophagus 2014; 29:107-15. [PMID: 25168378 DOI: 10.1111/dote.12277] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
UNLABELLED The stem cell compartment in the esophageal epithelium is possibly located in the basal layer. We have identified significant expression of Smad2/3, phosphorylated at specific linker threonine residues (pSmad2/3L-Thr), in the epithelial cells of murine stomach and intestine, and have suggested that these cells are epithelial stem cells. In this study, we explore whether pSmad2/3L-Thr could serve as a biomarker for esophageal stem cells. We examined esophageal tissues from normal C57BL/6 mice and those with esophagitis. Double immunofluorescent staining of pSmad2/3L-Thr with Ki67, CDK4, p63, or CK14 was performed. After immunofluorescent staining, we stained the same sections with hematoxylin-eosin and observed these cells under a light microscope. We used the 5-bromo-2-deoxyuridine (BrdU) labeling assay to examine label retention of pSmad2/3L-Thr immunostaining-positive cells. We collected specimens 5, 10, 15 and 20 days after repeated BrdU administrations and observed double immunofluorescent staining of pSmad2/3L-Thr with BrdU. In the esophagus, pSmad2/3L-Thr immunostaining-positive cells were detected in the basal layer. These cells were detected between Ki67 immunostaining-positive cells, but they were not co-localized with Ki67. pSmad2/3L-Thr immunostaining-positive cells showed co-localization with CDK4, p63, and CK14. Under a light microscope, pSmad2/3L-Thr immunostaining-positive cells indicated undifferentiated morphological features. Until 20 days follow-up period, pSmad2/3L-Thr immunostaining-positive cells were co-localized with BrdU. pSmad2/3L-Thr immunostaining-positive cells significantly increased in the regeneration phase of esophagitis mucosae, as compared with control mice (esophagitis vs. CONTROL 6.889 ± 0.676/cm vs. 4.293 ± 0.659/cm; P < 0.001). We have identified significant expression of pSmad2/3L-Thr in the specific epithelial cells of murine esophagi. We suggest that these cells are slow-cycling epithelial stem-like cells before re-entry to the cell cycle.
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Affiliation(s)
- Y Takahashi
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - T Fukui
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - M Kishimoto
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - R Suzuki
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - T Mitsuyama
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - K Sumimoto
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - T Okazaki
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - M Sakao
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - Y Sakaguchi
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - K Yoshida
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - K Uchida
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - A Nishio
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - K Matsuzaki
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - K Okazaki
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
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Asano R, Kobayashi S, Sonobe K, Shime-Hattori A, Okazaki K, Ohtomo R. Plant-available inorganic nutrient levels are increased in rice-derived distillery effluents inoculated with microbes. J Appl Microbiol 2014; 117:1412-21. [DOI: 10.1111/jam.12600] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 06/30/2014] [Accepted: 07/14/2014] [Indexed: 11/28/2022]
Affiliation(s)
- R. Asano
- Hokkaido Agricultural Research Center (HARC); National Agriculture and Food Research Organization (NARO); Sapporo Japan
| | - S. Kobayashi
- Hokkaido Agricultural Research Center (HARC); National Agriculture and Food Research Organization (NARO); Sapporo Japan
| | - K. Sonobe
- Hokkaido Agricultural Research Center (HARC); National Agriculture and Food Research Organization (NARO); Sapporo Japan
| | - A. Shime-Hattori
- Hokkaido Agricultural Research Center (HARC); National Agriculture and Food Research Organization (NARO); Sapporo Japan
| | - K. Okazaki
- Hokkaido Agricultural Research Center (HARC); National Agriculture and Food Research Organization (NARO); Sapporo Japan
| | - R. Ohtomo
- Hokkaido Agricultural Research Center (HARC); National Agriculture and Food Research Organization (NARO); Sapporo Japan
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Kodama M, Yoshida R, Hasegawa T, Izawa M, Kitano M, Baba K, Noshi T, Seki T, Okazaki K, Tsuji M, Kanazu T, Kamimori H, Homma T, Kobayashi M, Sakoda Y, Kida H, Sato A, Yamano Y. The relationship between in vivo antiviral activity and pharmacokinetic parameters of peramivir in influenza virus infection model in mice. Antiviral Res 2014; 109:110-5. [PMID: 24997412 DOI: 10.1016/j.antiviral.2014.06.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 06/18/2014] [Accepted: 06/24/2014] [Indexed: 11/19/2022]
Abstract
The purpose of this study was to investigate the relationship between pharmacokinetic (PK) parameters of intravenous (IV) peramivir and in vivo antiviral activity pharmacodynamic (PD) outcomes in a mouse model of influenza virus infection. Peramivir was administrated to mice in three dosing schedules; once, twice and four times after infection of A/WS/33 (H1N1). The survival rate at day 14 after virus infection was employed as the antiviral activity outcome for analysis. The relationship between day 14 survival and PK parameters, including area under the concentration-time curve (AUC), maximum concentration (Cmax) and time that drug concentration exceeds IC95 (T(>IC95)), was estimated using a logistic regression model, and model fitness was evaluated by calculation of the Akaike information criterion (AIC) index. The AIC indices of AUC, Cmax and T(>IC95) were about 114, 151 and 124, respectively. The AIC of AUC and T(>IC95) were smaller than that of Cmax. Therefore, both AUC and T(>IC95) were the PK parameters that correlated best with the antiviral activity of peramivir IV against influenza virus infection in mice.
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Affiliation(s)
- Makoto Kodama
- Medicinal Research Laboratories, Shionogi & Co., Ltd., Osaka, Japan
| | - Ryu Yoshida
- Medicinal Research Laboratories, Shionogi & Co., Ltd., Osaka, Japan
| | | | - Masaaki Izawa
- Medicinal Research Laboratories, Shionogi & Co., Ltd., Osaka, Japan
| | - Mitsutaka Kitano
- Medicinal Research Laboratories, Shionogi & Co., Ltd., Osaka, Japan
| | - Kaoru Baba
- Medicinal Research Laboratories, Shionogi & Co., Ltd., Osaka, Japan
| | - Takeshi Noshi
- Medicinal Research Laboratories, Shionogi & Co., Ltd., Osaka, Japan
| | - Takahiro Seki
- Medicinal Research Laboratories, Shionogi & Co., Ltd., Osaka, Japan
| | - Kenichi Okazaki
- Medicinal Research Laboratories, Shionogi & Co., Ltd., Osaka, Japan
| | - Masakatsu Tsuji
- Medicinal Research Laboratories, Shionogi & Co., Ltd., Osaka, Japan
| | - Takushi Kanazu
- Drug Developmental Research Laboratories, Shionogi & Co., Ltd., Osaka, Japan
| | - Hiroshi Kamimori
- Drug Developmental Research Laboratories, Shionogi & Co., Ltd., Osaka, Japan
| | - Tomoyuki Homma
- Medicinal Research Laboratories, Shionogi & Co., Ltd., Osaka, Japan
| | - Masanori Kobayashi
- Medicinal Research Laboratories, Shionogi & Co., Ltd., Osaka, Japan; Research Center for Zoonosis Control, Hokkaido University, Hokkaido, Japan
| | - Yoshihiro Sakoda
- Laboratory of Microbiology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Hokkaido, Japan
| | - Hiroshi Kida
- Laboratory of Microbiology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Hokkaido, Japan; Research Center for Zoonosis Control, Hokkaido University, Hokkaido, Japan
| | - Akihiko Sato
- Medicinal Research Laboratories, Shionogi & Co., Ltd., Osaka, Japan; Research Center for Zoonosis Control, Hokkaido University, Hokkaido, Japan.
| | - Yoshinori Yamano
- Medicinal Research Laboratories, Shionogi & Co., Ltd., Osaka, Japan
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Affiliation(s)
- K Okazaki
- Department of Bioresource Science, Faculty of Agriculture, Kagawa University, Japan
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Okazaki K. Current concept, diagnosis and pathogenesis of autoimmune pancreatitis as IgG4-related disease. Minerva Med 2014; 105:109-119. [PMID: 24727875] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Recently, autoimmune pancreatitis, a pancreatic manifestation of IgG4-related disease (IgG4-RD) has been recognized as a novel clinical entity associated with massive infiltration of IgG4-positive cells. The first international symposium on IgG4-RD endorsed the comprehensive nomenclature as IgG4-RD, which the Japanese research committee supported by the Ministry of Health, Labor and Welfare of Japan proposed in 2009, and proposed the individual nomenclatures for each organ system manifestations and the international pathologic consensus in 2011. In addition to the pathological consensus, the Japanese comprehensive diagnostic criteria (CDC) for IgG4-RD for general use, and several organ specific criteria for the organ specified physicians have been proposed; the International Consensus Diagnostic Criteria and the revised clinical diagnostic criteria in 2011 by Japan Pancreas Society (JPS-2011) for type1 AIP, the Clinical Diagnostic Criteria 2012 for IgG4-sclerosing cholangitis (IgG4-SC-2012), the diagnostic criteria for IgG4-positive Mikulicz's disease by the Japanse Society for Sjogren's syndrome, and Diagnostic criteria for IgG4-related kidney disease by the Japanese Society of Nephrology. Although the pathogenic mechanism still remains unclear, we have proposed a hypothesis of the pathogenic mechanism; abnormal innate and acquired immunity, regulatory T cells, and B cells on abnormal genetic backgrounds may be involved in the development of IgG4-cholangiopathy. Further studies are necessary to clarify the pathogenesis including genetic backgrounds, disease specific antigens, and the role of IgG4.
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Affiliation(s)
- K Okazaki
- Division of Gastroenterology and Hepatology Third Department of Internal Medicine Kansai Medical University, Osaka, Japan -
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Konno T, Tada M, Tada M, Koyama A, Nozaki H, Harigaya Y, Nishimiya J, Matsunaga A, Yoshikura N, Ishihara K, Arakawa M, Isami A, Okazaki K, Yokoo H, Itoh K, Yoneda M, Kawamura M, Inuzuka T, Takahashi H, Nishizawa M, Onodera O, Kakita A, Ikeuchi T. Haploinsufficiency of CSF-1R and clinicopathologic characterization in patients with HDLS. Neurology 2013; 82:139-48. [PMID: 24336230 PMCID: PMC3937843 DOI: 10.1212/wnl.0000000000000046] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Objective: To clarify the genetic, clinicopathologic, and neuroimaging characteristics of patients with hereditary diffuse leukoencephalopathy with spheroids (HDLS) with the colony stimulating factor 1 receptor (CSF-1R) mutation. Methods: We performed molecular genetic analysis of CSF-1R in patients with HDLS. Detailed clinical and neuroimaging findings were retrospectively investigated. Five patients were examined neuropathologically. Results: We found 6 different CSF-1R mutations in 7 index patients from unrelated Japanese families. The CSF-1R mutations included 3 novel mutations and 1 known missense mutation at evolutionarily conserved amino acids, and 1 novel splice-site mutation. We identified a novel frameshift mutation. Reverse transcription PCR analysis revealed that the frameshift mutation causes nonsense-mediated mRNA decay by generating a premature stop codon, suggesting that haploinsufficiency of CSF-1R is sufficient to cause HDLS. Western blot analysis revealed that the expression level of CSF-1R in the brain from the patients was lower than from control subjects. The characteristic MRI findings were the involvement of the white matter and thinning of the corpus callosum with signal alteration, and sequential analysis revealed that the white matter lesions and cerebral atrophy relentlessly progressed with disease duration. Spotty calcifications in the white matter were frequently observed by CT. Neuropathologic analysis revealed that microglia in the brains of the patients demonstrated distinct morphology and distribution. Conclusions: These findings suggest that patients with HDLS, irrespective of mutation type in CSF-1R, show characteristic clinical and neuroimaging features, and that perturbation of CSF-1R signaling by haploinsufficiency may play a role in microglial dysfunction leading to the pathogenesis of HDLS.
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Affiliation(s)
- Takuya Konno
- From the Departments of Neurology (T.K., Masayoshi Tada, A. Koyama, H.N., M.A., A.I., M.N., T. Ikeuchi), Pathology (Mari Tada, K.O., H.T., A. Kakita), Molecular Neuroscience (O.O.), and Molecular Genetics, Brain Research Institute (T. Ikeuchi), Niigata University; Department of Neurology (Y.H.), Maebashi Red Cross Hospital; Department of Neurology (J.N.), Gyotoku General Hospital, Ichikawa; Department of Neurology (A.M., M.Y.), University of Fukui Hospital; Department of Neurology and Geriatrics (N.Y., T. Inuzuka), Gifu University Graduate School of Medicine; Department of Neurology (K. Ishihara, M.K.), Showa University School of Medicine, Tokyo; Department of Human Pathology (H.Y.), Gunma University Graduate School of Medicine, Maebashi; and the Department of Pathology and Applied Neurobiology (K. Itoh), Kyoto Prefectural University of Medicine, Japan
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Sugai S, Takayanagi Y, Hayamizu N, Muroi T, Shiozaki R, Nohara J, Takenaka K, Okazaki K. Superconducting pairing and the pseudogap in the nematic dynamical stripe phase of La2-xSrxCuO4. J Phys Condens Matter 2013; 25:475701. [PMID: 24166932 DOI: 10.1088/0953-8984/25/47/475701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Fully absorption coefficient corrected Raman spectra were obtained in La2-xSrxCuO4. The B1g spectra have a Fleury-Loudon type two-magnon peak (resonant term) whose energy decreases from 3180 cm(-1) (394 meV) to 440 cm(-1) (55 meV) on increasing the carrier density from x = 0 to 0.25, while the B2g spectra have a 1000-3500 cm(-1) (124-434 meV) hump (hill) whose lower-edge energy increases from x = 0 to 0.115 and then stays constant to x = 0.25. The B2g hump is assigned to the electronic scattering (non-resonant term) of the spectral function with magnetic self-energy. The completely different carrier density dependence arises from anisotropic magnetic excitations of spin-charge stripes. The B1g spectra were assigned to the sum of k ∥ and k⊥ stripe excitations and the B2g spectra to k⊥ stripe excitations according to the calculation by Seibold and Lorenzana (2006 Phys. Rev. B 73 144515). The k ∥ and k⊥ stripe excitations in fluctuating spin-charge stripes were separately detected for the first time. The appearance of only k⊥ stripe excitations in the electronic scattering arises from the charge hopping perpendicular to the stripe. This is the same direction as the Burgers vector of the edge dislocation in metal. The successive charge hopping in the Burgers vector direction across the charge stripes may cause Cooper pairs as predicted by Zaanen et al (2004 Ann. Phys. 310 181). Indeed, this is supported by the experimental fact that the superconducting coherent length coincides with the inter-charge stripe distance in the wide carrier density range. The one-directional charge hopping perpendicular to the stripe causes the flat Fermi surface and the pseudogap near (π,0) and (0,π), but the states around (π/2,π/2) cannot be produced. The low-energy Raman scattering disclosed that the electronic states at the Fermi arc around (π/2,π/2) are coupled to the A1g soft phonon of the tetragonal-orthorhombic phase transition. This suggests that the Fermi arc is produced by the electron-phonon interaction. All the present Raman data suggest that Cooper pairs are formed at moving edge dislocations of dynamical charge stripes.
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Affiliation(s)
- S Sugai
- Department of Physics, Arts and Science, Petroleum Institute, PO Box 2533, Abu Dhabi, UAE. Department of Physics, Faculty of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
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Sugai S, Nohara J, Shiozaki R, Muroi T, Takayanagi Y, Hayamizu N, Takenaka K, Okazaki K. Correlation between Raman sum and optical conductivity sum in La(2-x)Sr(x)CuO4. J Phys Condens Matter 2013; 25:415701. [PMID: 24055839 DOI: 10.1088/0953-8984/25/41/415701] [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: 06/02/2023]
Abstract
In a strongly correlated electron system, the single-particle spectral function changes into a coherent peak and incoherent humps which extend over 1 eV. The incoherent parts lose the symmetry and k dependence, so that the Raman spectra with different symmetries become identical and they are expressed by the optical conductivity. We found that the B1g and B2g spectra in La(2-x)Sr(x)CuO4 become identical above 2000 cm(-1) in the underdoped phase, if Fleury-Loudon type B1g two-magnon scattering is removed. The first Raman susceptibility moment correlates with the generalized optical conductivity moment. The good correlation arises from the incoherent states of a hump from 1000 to 4000 cm(-1). The hump is the only structure of the incoherent electronic states in the mid-infrared absorption spectra below 1.4 eV at low carrier densities. The energy is twice the separated dispersion segments of the spin wave in the k(perpendicular) stripe direction. The incoherent state is formed by the magnetic excitations created by the hole hopping in the antiferromagnetic spin stripes in the real space picture.
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Affiliation(s)
- S Sugai
- Department of Physics, Arts and Science, Petroleum Institute, PO Box 2533, Abu Dhabi, UAE. Department of Physics, Faculty of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
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Matsushita M, Tanaka T, Fukui Y, Ando Y, Fukata N, Kawamata S, Okazaki K. Handcrafted two-channel colonoscope for grasping forceps-assisted resection of large pedunculated polyps in the sigmoid colon. Endoscopy 2013; 45:229. [PMID: 23446671 DOI: 10.1055/s-0032-1326206] [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: 12/10/2022]
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Miyahara H, Natsumeda M, Yoshimura J, Ogura R, Okazaki K, Toyoshima Y, Fujii Y, Takahashi H, Kakita A. Neuronal differentiation associated with Gli3 expression predicts favorable outcome for patients with medulloblastoma. Neuropathology 2013; 34:1-10. [PMID: 23889567 DOI: 10.1111/neup.12052] [Citation(s) in RCA: 11] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Revised: 06/11/2013] [Accepted: 06/12/2013] [Indexed: 12/18/2022]
Abstract
Medulloblastoma (MB) is a malignant cerebellar tumor arising in children, and its ontogenesis is regulated by Sonic Hedgehog (Shh) signaling. No data are available regarding the correlation between expression of Gli3, a protein lying downstream of Shh, and neuronal differentiation of MB cells, or the prognostic significance of these features. We re-evaluated the histopathological features of surgical specimens of MB taken from 32 patients, and defined 15 of them as MB with neuronal differentiation (ND), three as MB with both glial and neuronal differentiation (GD), and 14 as differentiation-free (DF) MB. Gli3-immunoreactivity (IR) was evident as a clear circular stain outlining the nuclei of the tumor cells. The difference in the frequency of IR between the ND+GD (94.4%) and DF (0%) groups was significant (P < 0.001). The tumor cells with ND showed IR for both Gli3 and neuronal nuclei. Ultrastructurally, Gli3-IR was observed at the nuclear membrane. The overall survival and event-free survival rates of the patients in the ND group were significantly higher than those in the other groups. The expression profile of Gli3 is of considerable significance, and the association of ND with this feature may be prognostically favorable in patients with MB.
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Affiliation(s)
- Hiroaki Miyahara
- Department of Pathology, Brain Research Institute, University of Niigata; Department of Pediatrics and Child Neurology, Oita University Faculty of Medicine, Oita, Japan
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Kataoka Y, Imai H, Nakata Y, Daitoh T, Kimura TMN, Nakano T, Mizuno Y, Oketani T, Takahashi M, Tsubuku M, Miyake H, Hirakata TIY, Koyama J, Yamazaki S, Koezuka J, Okazaki K. 56.1: Development of IGZO-TFT and Creation of New Devices Using IGZO-TFT. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/j.2168-0159.2013.tb06329.x] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Koezuka J, Okazaki K, Hirohashi T, Takahashi M, Adachi S, Tsubuku M, Yamazaki S, Kanzaki Y, Matsukizono H, Kaneko S, Mori S, Matsuo T. 52.3: Development of Back-channel-etched TFT Using C-Axis Aligned Crystalline In-Ga-Zn-Oxide. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/j.2168-0159.2013.tb06315.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Kondo T, Nakashima Y, Ota Y, Ishida Y, Malaeb W, Okazaki K, Shin S, Kriener M, Sasaki S, Segawa K, Ando Y. Anomalous dressing of Dirac fermions in the topological surface state of Bi2Se3, Bi2Te3, and Cu-doped Bi2Se3. Phys Rev Lett 2013; 110:217601. [PMID: 23745936 DOI: 10.1103/physrevlett.110.217601] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2012] [Indexed: 06/02/2023]
Abstract
Quasiparticle dynamics on the topological surface state of Bi(2(3), Bi(2)Te(3), and superconducting Cu(x)Bi(2)Se(3) are studied by 7 eV laser-based angle resolved photoemission spectroscopy. We find strong mode couplings in the Dirac-cone surface states at energies of ~3 and ~15-20 meV associated with an exceptionally large coupling constant λ of ~3, which is one of the strongest ever reported for any material. This result is compatible with the recent observation of a strong Kohn anomaly in the surface phonon dispersion of Bi(2)Se(3), but it appears that the theoretically proposed "spin-plasmon" excitations realized in helical metals are also playing an important role. Intriguingly, the ~3 meV mode coupling is found to be enhanced in the superconducting state of Cu(x)Bi(2)Se(3).
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Affiliation(s)
- Takeshi Kondo
- ISSP, University of Tokyo, Kashiwa, Chiba 277-8581, Japan.
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Okazaki K, Yazawa D, Goto M, Kamijo YI, Furihata M, Gen-no H, Hamada K, Nose H. Effects of macronutrient intake on thigh muscle mass during home-based walking training in middle-aged and older women. Scand J Med Sci Sports 2013; 23:e286-92. [PMID: 23647307 DOI: 10.1111/sms.12076] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/28/2013] [Indexed: 11/28/2022]
Abstract
We examined whether post-exercise macronutrient supplementation during a 5-month home-based interval walking training (IWT) accelerated exercise-induced increases in skeletal muscle mass and strength in healthy middle-aged and older women. Thirty-five women (41-78 years) were randomly divided into two groups: IWT alone (CNT, n = 18) or IWT plus post-exercise macronutrient (7.6 g protein, 32.5 g carbohydrate, and 4.4 g fat) supplementation (NUT, n = 17). For IWT, all subjects were instructed to repeat five or more sets of 3-min low-intensity walking at 40% peak aerobic capacity (Vo2 peak ), followed by a 3-min high-intensity walking above 70% Vo2 peak per day for 4 or more days per week. We determined Vo2 peak , thigh muscle tissue area by computer tomography, and thigh muscle strength in all subjects before and after IWT. We found that an increase in hamstring muscle tissue area was 2.8 ± 1.2% in NUT vs -1.0 ± 0.7% in CNT and that in isometric knee flexion force was 16.3 ± 3.7% in NUT vs 6.5 ± 3.0% in CNT; both were significantly higher in NUT than in CNT (both, P < 0.001). Thus, post-exercise macronutrient supplementation enhanced the increases in thigh muscle mass and strength, although partially, in home-based IWT in middle-aged and older women.
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Affiliation(s)
- K Okazaki
- Department of Sports Medical Sciences, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, Matsumoto, Japan; Jukunen Taiiku Daigaku Research Center, Matsumoto, Japan
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Tada Y, Yano S, Yamaguchi T, Okazaki K, Ogawa N, Morita M, Sugimoto T. Advanced glycation end products-induced vascular calcification is mediated by oxidative stress: functional roles of NAD(P)H-oxidase. Horm Metab Res 2013; 45:267-72. [PMID: 23225244 DOI: 10.1055/s-0032-1329965] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [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: 10/27/2022]
Abstract
Vascular calcification, especially medial artery calcification, is associated with increased morbidity and mortality in patients with diabetes mellitus and end-stage kidney disease. Advanced glycation end products (AGEs) accumulated in these patients may be associated with vascular calcification, although their actions are obscure. Since AGEs can induce oxidative stress, which leads to vascular damage, we investigated an in vitro study to elucidate the effects of AGEs and the roles of NAD(P)H oxidase in the pathogenesis of vascular calcification. A7r5, rat vascular smooth muscle cells (VSMCs) were incubated in calcification medium with glycolaldehyde-derived AGE (AGE3) to measure calcium deposition and 8-hydroxydeoxyguanosine (8-OHdG) and to determine mRNA levels of osteopontin (OPN), osteocalcin (OCN), Runx2, Nox-1, Nox-4, and p22(phox) by real-time PCR. Calcium deposition was increased by AGE3 in a dose-dependent manner (100-300 μg/dl) in A7r5 cells. Expression levels of Runx2, OPN, and OCN mRNAs were significantly higher in AGE3 treatment than those in control BSA. Increased 8-OHdG concentration in the culture medium and higher expression of Nox-1, Nox-4, and p22(phox) mRNAs (3-6-fold) were observed in cells treated with AGE3. AGE3-stimulated calcium deposition was significantly decreased in the cells transfected by either small interfering RNA for Nox-4 or p22(phox), compared to the controls. In contrast, no significant effect was shown in silencing of Nox-1. Excessive oxidative stress and osteoblastic transition of VSMCs are involved in the pathogenesis of AGEs-induced vascular calcification. NAD(P)H oxidase plays important roles in this process.
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MESH Headings
- Animals
- Cell Line
- Gene Expression Regulation, Enzymologic
- Glycation End Products, Advanced/metabolism
- Glycation End Products, Advanced/pharmacology
- Humans
- Muscle Proteins/biosynthesis
- Muscle, Smooth, Vascular/enzymology
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/enzymology
- Myocytes, Smooth Muscle/pathology
- NADH, NADPH Oxidoreductases/biosynthesis
- NADPH Oxidase 1
- NADPH Oxidase 4
- NADPH Oxidases/biosynthesis
- Rats
- Vascular Calcification/enzymology
- Vascular Calcification/pathology
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Affiliation(s)
- Y Tada
- Department of Internal Medicine 1, Shimane University Faculty of Medicine, Shimane, Japan
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Okazaki K, Ito Y, Ota Y, Kotani Y, Shimojima T, Kiss T, Watanabe S, Chen CT, Niitaka S, Hanaguri T, Takagi H, Chainani A, Shin S. Evidence for a cos(4φ) modulation of the superconducting energy gap of optimally doped FeTe(0.6)Se(0.4) single crystals using laser angle-resolved photoemission spectroscopy. Phys Rev Lett 2012; 109:237011. [PMID: 23368253 DOI: 10.1103/physrevlett.109.237011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Indexed: 06/01/2023]
Abstract
We study the superconducting-gap anisotropy of the Γ-centered hole Fermi surface in optimally doped FeTe(0.6)Se(0.4) (T(c)=14.5 K), using laser-excited angle-resolved photoemission spectroscopy. We observe sharp superconducting (SC) coherence peaks at T=2.5 K. In contrast to earlier angle-resolved photoemission spectroscopy studies but consistent with thermodynamic results, the momentum dependence shows a cos(4φ) modulation of the SC-gap anisotropy. The observed SC-gap anisotropy strongly indicates that the pairing interaction is not a conventional phonon-mediated isotropic one. Instead, the results suggest the importance of second-nearest-neighbor electronic interactions between the iron sites in the framework of s(±)-wave superconductivity.
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Affiliation(s)
- K Okazaki
- Institute for Solid State Physics (ISSP), University of Tokyo, Kashiwa, Chiba 277-8581, Japan.
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Suzuki K, Okazaki K, Sasaki K, Sakamoto Y. Physical activity and health-related quality of life of children in disaster areas. J Sci Med Sport 2012. [DOI: 10.1016/j.jsams.2012.11.681] [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: 10/27/2022]
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Okazaki K, Suzuki K, Ohkawara K, Sasaki K. Physical activities of adolescents after the 2011 Great Eastern Japan earthquake affected damaged and minimally damaged areas. J Sci Med Sport 2012. [DOI: 10.1016/j.jsams.2012.11.672] [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: 10/27/2022]
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Suga S, Yasuhi I, Aoki M, Nomiyama M, Kubo N, Kawakami K, Okura N, Maeda M, Okazaki K, Kawada K. W125 RISK FACTORS ASSOCIATED WITH RESPIRATORY PROBLEMS IN LATE PRETERM INFANTS: JAPAN NATIONAL HOSPITAL ORGANIZATION (NHO) NETWORK STUDY. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)61850-5] [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: 11/26/2022]
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Tanabe T, Amano S, Miyake H, Suzuki A, Komatsu R, Koyama J, Yamazaki S, Okazaki K, Katayama M, Matsukizono H, Kanzaki Y, Matsuo T. 9.1: WITHDRAWN: 9.2: New Threshold Voltage Compensation Pixel Circuits in 13.5-inch Quad Full High Definition OLED Display of Crystalline In-Ga-Zn-Oxide FETs. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/j.2168-0159.2012.tb05717.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Okazaki K, Ota Y, Kotani Y, Malaeb W, Ishida Y, Shimojima T, Kiss T, Watanabe S, Chen CT, Kihou K, Lee CH, Iyo A, Eisaki H, Saito T, Fukazawa H, Kohori Y, Hashimoto K, Shibauchi T, Matsuda Y, Ikeda H, Miyahara H, Arita R, Chainani A, Shin S. Octet-Line Node Structure of Superconducting Order Parameter in KFe2As2. Science 2012; 337:1314-7. [DOI: 10.1126/science.1222793] [Citation(s) in RCA: 198] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Hassan A, Okuta T, Kato M, Hatsugai N, Sano Y, Ishimori T, Okazaki K, Doullah MA, Shah MM. Alternaric acid stimulates phosphorylation of His-tagged RiCDPK2, a calcium-dependent protein kinase in potato plants. Genet Mol Res 2012; 11:2381-9. [PMID: 22614453 DOI: 10.4238/2012.may.10.1] [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: 11/03/2022]
Abstract
Calcium-dependent protein kinases (CDPK) are an essential component of plant defense mechanisms against pathogens. We investigated the effect of alternaric acid, a host-specific toxin produced by the plant fungal pathogen Alternaria solani (Pleosporaceae), on a putative plasma membrane and cytosolic kinase RiCDPK2 of potato (Solanum tuberosum) and on hypersensitive cell death of host potato cells. Alternaric acid, in the presence of Ca²⁺ and Mg²⁺, stimulated in vitro phosphorylation of His-tagged RiCDPK2, a Ca²⁺-dependent protein kinase found in potato plants. We concluded that Ca²⁺ and Mg²⁺ play an important role in the interaction between alternaric acid and RiCDPK2. Based on our observations, alternaric acid regulates RiCDPK2 kinase during the infection process in an interaction between host and A. solani, leading to the inhibition of hypersensitive cell death in the host. We suggest that alternaric acid is a primary determinant by which A. solani stimulates CDPK activity in the host, suppressing hypersensitive cell death.
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Affiliation(s)
- A Hassan
- Biotechnology Program, Department of Environmental Sciences, COMSATS Institute of Information Technology, Abbottabad, Pakistan
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48
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Miyazaki N, Matsumoto J, Alberici F, Palmisano A, Maritati F, Oliva E, Buzio C, Vaglio A, Mjoen G, Norby GE, Vikse BE, Svarstad E, Rune B, Knut A, Szymczak M, Kuzniar J, Kopec W, Marchewka Z, Klinger M, Arrizabalaga P, Silvarino R, Sant F, Espinosa G, Sole M, Cervera R, Gude D, Chennamsetty S, Demin A, Kozlov V, Lisukov I, Kotova O, Sizikov A, Sergeevicheva V, Demina L, Borjesson O, Wendt M, Avik A, Qureshi AR, Bratt J, Miller EJ, Gunnarsson I, Bruchfeld A, Sugiyama K, Hasegawa M, Yamamoto K, Hayashi H, Koide S, Murakami K, Tomita M, Yoshida S, Yuzawa Y, Yew S, Jayne D, Westman K, Hoglund P, Flossman O, Mahr A, Luqmani R, Robson J, Thervet E, Levi C, Guiard E, Roland M, Nochy D, Daniliuc C, Guillevin L, Mouthon L, Jacquot C, Karras A, Kimura Y, Morita H, Debiec H, Yamada H, Miura N, Banno S, Ronco P, Imai H, Shin DH, Famee D, Koo HM, Han SH, Choi KH, Yoo TH, Kang SW, Fofi C, Fofi C, Scabbia L, Festuccia F, Stoppacciaro A, Mene' P, Shimizu A, Fukui M, MII A, Kaneko T, Masuda Y, Iino Y, Katayama Y, Fukuda Y, Kuroki A, Matsumoto K, Akizawa T, Jurubita R, Ismail G, Bobeica R, Rusu E, Zilisteanu D, Andronesi A, Motoi O, Ditoiu V, Copaci I, Voiculescu M, Irazabal MV, Eirin A, Lieske JC, Beck LH, Dillon JJ, Nachman PH, Sethi S, Erickson SB, Cattran DC, Fervenza FC, Svobodova B, Hruskova Z, Janatkova I, Jancova E, Tesar V, Seo MS, Kwon SH, Lee EB, You JY, Hyun YK, Woo SA, Park MY, Choi SJ, Jeon JS, Noh H, Kim JG, Han DC, Hwang SD, Choi TY, Jin SY, Kwon SH, Loiacono E, Loiacono E, Defedele D, Puccinelli MP, Camilla R, Gallo R, Peruzzi L, Rollino C, Beltrame G, Ferro M, Vergano L, Campolo F, Amore A, Coppo R, Knoop T, Vikse BE, Svarstad E, Bostad L, Leivestad T, Bjorneklett R, Teranishi J, Yamamoto R, Nagasawa Y, Shoji T, Iwatani H, Okada N, Moriyama T, Yamauchi A, Tsubakihara Y, Imai E, Rakugi H, Isaka Y, Koo HM, Doh FM, Kim SJ, Kang SW, Choi KH, Han DS, Han SH, Suzuki Y, Matsuzaki K, Suzuki H, Okazaki K, Yanagawa H, Maiguma M, Muto M, Sato T, Horikoshi S, Novak J, Hotta O, Tomino Y, Gutierrez* E, Zamora I, Ballarin J, Arce Y, Jimenez S, Quereda C, Olea T, Martinez-Ara J, Segarra A, Bernis C, Garcia A, Goicoechea M, Garcia de Vinuesa S, Rojas J, Praga M, Ristovska V, Petrushevska G, Grcevska L, Knoop T, Vikse BE, Svarstad E, Bostad L, Leivestad T, Bjorneklett R, Satake K, Shimizu Y, Mugitani N, Suzuki H, Suzuki Y, Horikoshi S, Honda S, Shibuya K, Shibuya A, Tomino Y, Papale M, Rocchetti MT, DI Paolo S, Suriano IV, D'apollo A, Vocino G, Montemurno E, Varraso L, Grandaliano G, Gesualdo L, Huerta A, Bomback AS, Canetta PA, Radhakrishnan J, Herlitz L, Stokes B, D'agati V, Markowitz G, Appel GB, Ristovska V, Grcevska L, Mouna H, Nasr BD, Mrabet I, Ahmed L, Sabra A, Mohamed Ammeur F, Mezri E, Habib S, Innocenti M, Pasquariello A, Pasquariello G, Mattei P, Bottai A, Fumagalli G, Bozzoli L, Samoni S, Cupisti A, Caldin B, Hung J, Repizo L, Malheiros DM, Barros R, Woronik V, Giammarresi C, Bono L, Ferrantelli A, Tortorici C, Licavoli G, Rotolo U, Huang X, Wang Q, Shi M, Chen W, Liu Z, Scarpioni R, Cantarini L, Lazzaro A, Ricardi M, Albertazzi V, Melfa L, Concesi C, Vallisa D, Cavanna L, Gungor G, Ataseven H, Demir A, Solak Y, Biyik M, Ozturk B, Polat I, Kiyici A, Ozer Cakir O, Polat H, Martinez-Ara J, Castillo I, Carreno V, Aguilar A, Madero R, Hernandez E, Bernis C, Bartolome J, Gea F, Selgas R, El Aggan HAM, El Banawy HS, Wagdy E, Tchebotareva N, LI O, Bobkova I, Kozlovskaya L, Varshavskiy V, Golicina E, Chen Y, Gong Z, Chen X, Tang L, Zhou J, Cao X, Wei R, Koo EH, Koo EH, Park JH, Kim HK, Kim MS, Jang HR, Lee JE, Huh W, Kim DJ, Oh HY, Kim YG, Tchebotareva N, Bobkova I, Kozlovskaya L, LI O, Eskova O, Shvetsov M, Golytsina E, Varshavskiy V, Popova O, Quaglia M, Monti S, Fenoglio R, Menegotto A, Airoldi A, Izzo C, Rizzo MA, Dianzani U, Stratta P, Vaglio A, Vaglio A, Alberici F, Gianfreda D, Buzio C. Primary and secondary glomerulonephritis I. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs223] [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: 11/13/2022] Open
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Miyagishima SY, Suzuki K, Okazaki K, Kabeya Y. Expression of the Nucleus-Encoded Chloroplast Division Genes and Proteins Regulated by the Algal Cell Cycle. Mol Biol Evol 2012; 29:2957-70. [DOI: 10.1093/molbev/mss102] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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Okazaki K, Tanaka H, Ohno N, Ezumi N, Tsuji Y, Kajita S. Measurement of ion and electron temperatures in plasma blobs by using an improved ion sensitive probe system and statistical analysis methods. Rev Sci Instrum 2012; 83:023502. [PMID: 22380086 DOI: 10.1063/1.3681778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We have measured ion temperature as well as electron temperature in plasma blobs observed in a linear plasma device by using an improved ion sensitive probe. Current-voltage characteristics of the ion sensitive probe inside and outside plasma blobs were re-constructed with a conditional sampling method. It is clearly found that both ion and electron temperatures in plasma blobs decrease more slowly in a cross-field direction than those in a bulk plasma without plasma blobs.
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Affiliation(s)
- K Okazaki
- Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8603, Japan.
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