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Kobayashi H, Satake E, Murata Y, Otsuka H, Tsunemi A, Azuma M, Nakamura Y, Saito T, Abe M. Neuroblastoma suppressor of tumorigenicity 1 is associated with the severity of interstitial fibrosis and kidney function decline in IgA nephropathy. J Nephrol 2023; 36:2245-2256. [PMID: 37436574 DOI: 10.1007/s40620-023-01704-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 06/09/2023] [Indexed: 07/13/2023]
Abstract
INTRODUCTION Recently, circulating neuroblastoma suppressor of tumorigenicity 1 (NBL1) was shown to be strongly associated with kidney disease progression and histological lesions in patients with diabetic kidney disease. This study aimed to examine whether serum NBL1 level was also associated with kidney function and renal histological findings in patients with IgA nephropathy. METHODS We evaluated the levels of NBL1 in 109 patients with newly diagnosed biopsy-proven primary IgAN, between 2009 and 2018, at the Nihon University School of Medicine Itabashi Hospital, Tokyo, Japan, using serum obtained immediately before the renal biopsy, and examined the relationship between serum NBL1, renal function and renal histological findings assessed using the Oxford Classification (MEST score). Furthermore, we analyzed the association of serum NBL1 with kidney function decline over time in patients with IgA nephropathy who had follow-up data on the estimated glomerular filtration rate (n = 76). RESULTS Serum NBL1 levels in patients with newly diagnosed IgA nephropathy were elevated, as compared to those in healthy individuals (n = 93). Logistic regression analysis demonstrated that the serum NBL1 level was independently and significantly associated with tubular atrophy/interstitial fibrosis. Immunohistochemical staining revealed that NBL1 was highly expressed in the tubulointerstitium. Furthermore, Spearman's rank correlation identified a significant correlation between serum NBL1 level and estimated glomerular filtration rate slope. CONCLUSIONS The serum NBL1 level was significantly associated with the severity of renal interstitial fibrosis and kidney disease progression in patients with newly diagnosed IgA nephropathy. Thus, circulating NBL1 may serve as a good biomarker for evaluating renal interstitial fibrosis and the risk of kidney disease progression.
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Affiliation(s)
- Hiroki Kobayashi
- Department of Internal Medicine, Division of Nephrology, Hypertension, and Endocrinology, Nihon University School of Medicine, 30-1 Oyaguchi Kami-chou, Itabashi-ku, Tokyo, 173-8610, Japan.
| | - Eiichiro Satake
- Section on Genetics and Epidemiology, Research Division, Joslin Diabetes Center, Boston, MA, USA
- Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Yusuke Murata
- Department of Internal Medicine, Division of Nephrology, Hypertension, and Endocrinology, Nihon University School of Medicine, 30-1 Oyaguchi Kami-chou, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Hiromasa Otsuka
- Department of Emergency Room and General Medicine, Ageo Central General Hospital, Saitama, Japan
- Department of Internal Medicine, Hatogaya Hospital, Saitama, Japan
| | - Akiko Tsunemi
- Department of Internal Medicine, Division of Nephrology, Hypertension, and Endocrinology, Nihon University School of Medicine, 30-1 Oyaguchi Kami-chou, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Masaki Azuma
- Department of Internal Medicine, Hatogaya Hospital, Saitama, Japan
| | - Yoshihiro Nakamura
- Department of Internal Medicine, Division of Nephrology, Hypertension, and Endocrinology, Nihon University School of Medicine, 30-1 Oyaguchi Kami-chou, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Tomoyuki Saito
- Department of Internal Medicine, Division of Nephrology, Hypertension, and Endocrinology, Nihon University School of Medicine, 30-1 Oyaguchi Kami-chou, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Masanori Abe
- Department of Internal Medicine, Division of Nephrology, Hypertension, and Endocrinology, Nihon University School of Medicine, 30-1 Oyaguchi Kami-chou, Itabashi-ku, Tokyo, 173-8610, Japan
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2
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Takei S, Suzuki K, Otsuka H, Watanabe S. Secondary Syphilis Rash. JMA J 2023; 6:546-547. [PMID: 37941701 PMCID: PMC10627907 DOI: 10.31662/jmaj.2023-0068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 06/08/2023] [Indexed: 11/10/2023] Open
Affiliation(s)
- Shun Takei
- Department of General Medicine, Ageo Central General Hospital, Saitama, Japan
| | - Kiyozumi Suzuki
- Department of General Medicine, Ageo Central General Hospital, Saitama, Japan
| | - Hiromasa Otsuka
- Department of General Medicine, Ageo Central General Hospital, Saitama, Japan
| | - Seishi Watanabe
- Department of General Medicine, Ageo Central General Hospital, Saitama, Japan
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Affiliation(s)
- Kiyozumi Suzuki
- Department of Emergency Room and General Medicine, Ageo Central General Hospital, Japan
| | - Hiromasa Otsuka
- Department of Emergency Room and General Medicine, Ageo Central General Hospital, Japan
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Suzuki K, Kanzawa A, Otsuka H, Hirai Y. A Case of Isolated Oral Secondary Syphilis. JMA J 2022; 5:139-140. [PMID: 35224279 PMCID: PMC8826645 DOI: 10.31662/jmaj.2021-0180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 10/11/2021] [Indexed: 11/09/2022] Open
Affiliation(s)
- Kiyozumi Suzuki
- Department of Emergency Room and General Medicine, Ageo Central General Hospital, Ageo, Japan
| | - Akihiro Kanzawa
- Department of Emergency Room and General Medicine, Ageo Central General Hospital, Ageo, Japan
| | - Hiromasa Otsuka
- Department of Emergency Room and General Medicine, Ageo Central General Hospital, Ageo, Japan
| | - Yuji Hirai
- Department of Infectious Disease, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
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Otsuka H, Kobayashi H, Suzuki K, Hayashi Y, Ikeda J, Kushimoto M, Hara M, Abe M, Kato K, Soma M. Mobility performance impacts mortality risk in community-dwelling healthy older adults in Japan: a prospective observational study. Aging Clin Exp Res 2021; 33:2511-2517. [PMID: 33496935 DOI: 10.1007/s40520-021-01787-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Accepted: 01/05/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND The timed up and go (TUG) test assesses balance and mobility performance. AIM This study aims to investigate the association between TUG time and mortality in Japanese older persons and to clarify possible moderation effects on mortality and TUG time. METHODS In all, 874 participants who were ≥ 65 years of age completed the TUG test and had their anthropometric parameters and physical functions measured. We investigated the association between all-cause mortality and TUG using a Cox regression model that included confounders, and explored the time associated with mortality using a restricted cubic spline. We also performed subgroup analyses to explore whether age, sex, and body mass index (BMI) affected the relationship between TUG time and mortality. RESULTS The median age and mean follow-up period were 74 and 8.5 years, respectively. Median TUG time was 7.4 s and the prevalence of mortality was 25.7%. TUG time in one second was positively associated with an increased risk of total mortality [hazard ratio (HR): 1.054 (1.016-1.093); P = 0.005] in the Cox regression model. The positive association of mortality and TUG time was present when the TUG was over 10.5 s in the restricted cubic spline curve. Older age (75 years or older) moderated the relationship between TUG time and mortality [Pinteraction = 0.096]. CONCLUSION This study demonstrates that TUG time is associated with all-cause mortality in Japanese older adults.
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Affiliation(s)
- Hiromasa Otsuka
- Department of Emergency Room and General Medicine, Ageo Central General Hospital, Saitama, Japan
| | - Hiroki Kobayashi
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, 30-1, Oyaguchikami-machi, Itabashi-ku, Tokyo, 173-8610, Japan.
| | - Kiyozumi Suzuki
- Department of Emergency Room and General Medicine, Ageo Central General Hospital, Saitama, Japan
| | - Yuta Hayashi
- Division of Internal Medicine, Sasaki Foundation Kyoundo Hospital, Tokyo, Japan
| | - Jin Ikeda
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Internal Medicine, Tokyo, Japan
| | - Masaru Kushimoto
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Internal Medicine, Tokyo, Japan
| | - Motohiko Hara
- Department of Nursing, School of Health and Social Services, Saitama Prefectural University, Saitama, Japan
- Department of Rehabilitation, Teikyo University School of Medicine, Tokyo, Japan
| | - Masanori Abe
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, 30-1, Oyaguchikami-machi, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Kimitoshi Kato
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Internal Medicine, Tokyo, Japan
| | - Masayoshi Soma
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Internal Medicine, Tokyo, Japan
- Division of Internal Medicine, Sasaki Foundation Kyoundo Hospital, Tokyo, Japan
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Miki T, Miyoshi T, Suruga K, Ichikawa K, Otsuka H, Toda H, Yoshida M, Nakamura K, Morita H, Ito H. Triglyceride to HDL-cholesterol ratio is a predictor of future coronary events: a possible role of high-risk coronary plaques detected by coronary CT angiography. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2930] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
For the prevention of future cardiovascular events, control of residual risks such as triglyceride rich lipoproteins and HDL-cholesterol is an emerging problem beyond LDL-cholesterol. Triglyceride to HDL-cholesterol ratio (TG/HDL ratio) has been reported to be useful for risk classification of cardiovascular diseases. Meanwhile, several studies showed that high-risk plaque characteristics evaluated with coronary CT angiography (cCTA) was associated with the incidence of acute coronary syndrome. However, the relationship of TG/HDL ratio with coronary plaque characteristics and its impact of this association on future coronary events have not been fully elucidated.
Purpose
The aim of this study was to evaluate the association between TG/HDL ratio and high-risk plaque detected by cCTA and its impact on future coronary events.
Methods
A total of 944 patients suspected stable coronary artery disease who underwent cCTA at our institution were analyzed (mean 64-year-old, 55% male). Patients were divided into two groups by the median value of TG/HDL ratio (higher TG/HDL: TG/HDL ratio ≥2.0, lower TG/HDL: TG/HDL ratio <2.0). Coronary high-risk plaques were defined as a plaque with all three components; low attenuation plaque (<50H.U.), positive remodeling (remodeling index >1.1) and spotty calcification. Cardiovascular event was defined as cardiovascular death, acute coronary syndrome, and late coronary revascularization after 30 days of CT acquisition.
Results
The higher TG/HDL ratio was significantly associated with male gender (63% vs. 48%, P<0.001), body mass index (24.8±3.8 vs. 22.9±4.0, p<0.001), the prevalence of hypertension (65% vs. 54%, P<0.001), dyslipidemia (60% vs. 42%, P<0.001), diabetes mellitus (38% vs. 27%, P=0.001) and current smoking (26% vs. 10%, p<0.001). Regarding cCTA findings, the prevalence of significant stenosis, calcified plaque, non-calcified plaque, coronary plaques with low attenuation plaque, positive remodeling and spotty calcification in the higher TG/HDL group were greater than those in the lower group (Figure 1A). Of note, the difference in high-risk plaque between two groups was significant. (18% vs. 11%, p=0.004). Multivariate logistic analysis revealed that the TG/HDL ratio was an independent risk factor for high-risk plaque even after adjustment (OR, 1.35; 95% CI, 1.01–1.81; p=0.049). Regarding coronary events (median follow-up duration; 48 months), Kaplan-Meier curve showed poor event-free rate in the higher TG/HDL group (Figure 1B). At Cox proportional hazard analysis, higher TG/HDL ratio (HR, 1.94; 95% CI, 1.01–3.70; p=0.046) and CT-verified high-risk plaque (HR, 2.36; 95% CI, 1.27–4.38; p=0.006) were independent predictive factors for coronary events even after adjustment.
Conclusion
TG/HDL ratio is involved in the vulnerability of CT-verified coronary plaque characteristics. This association may play an important role in the prognostic impact of TG/HDL ratio on future cardiovascular events.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- T Miki
- Okayama University Hospital, Okayama, Japan
| | - T Miyoshi
- Okayama University Hospital, Okayama, Japan
| | - K Suruga
- Okayama University Hospital, Okayama, Japan
| | - K Ichikawa
- Okayama University Hospital, Okayama, Japan
| | - H Otsuka
- Okayama University Hospital, Okayama, Japan
| | - H Toda
- Okayama University Hospital, Okayama, Japan
| | - M Yoshida
- Okayama University Hospital, Okayama, Japan
| | - K Nakamura
- Okayama University Hospital, Okayama, Japan
| | - H Morita
- Okayama University Hospital, Okayama, Japan
| | - H Ito
- Okayama University Hospital, Okayama, Japan
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7
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Otsuka H, Kobayashi H, Suzuki K, Hayashi Y, Ikeda J, Kushimoto M, Omoto W, Hara M, Abe M, Kato K, Soma M. Mobility performance among healthy older adults eligible for long-term care in Japan: a prospective observational study. Aging Clin Exp Res 2020; 32:1931-1937. [PMID: 31722093 DOI: 10.1007/s40520-019-01404-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Accepted: 10/30/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIM Disability is an important health problem among older individuals, prompting the need for long-term care. Age-related disability is usually associated with mobility; however, little is known about the association between mobility and long-term care. Therefore, this study aimed to clarify the association between the timed up and go (TUG) test measuring mobility and long-term care eligibility. PATIENTS AND METHODS We analyzed follow-up data of 489 community-dwelling healthy older adults (≥ 65 years) who participated in a prospective observational study. They were divided into certified (59 participants) and uncertified (430 participants) groups based on long-term care eligibility. Anthropometric and physical functioning measures included the TUG test and hand grip strength (HGS), among others. These measures were compared between groups and a multivariate logistic regression analysis evaluated the association between the TUG test times and long-term care eligibility. RESULTS Participants' minimum follow-up period was 4 years. TUG times were significantly slower (median time: 7.4 vs. 8.3 s, p < 0.001) and HGS and knee-extension strength significantly lower in the certified group than in the uncertified group. The logistic regression analysis showed that TUG times were significantly associated with long-term care eligibility after adjusting for potential covariates. In addition, mediation analysis showed that 53.1% of the association between HGS and long-term care eligibility was mediated through TUG times. CONCLUSION The TUG test was associated with long-term care eligibility among healthy older adults, implying that the test may be helpful as a predictor for the early determination of dependence in old age.
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Affiliation(s)
- Hiromasa Otsuka
- Department of Emergency Room and General Medicine, Ageo Central General Hospital, Saitama, Japan
| | - Hiroki Kobayashi
- Division of Nephrology, Hypertension and Endocrinology, Department of Medicine, Nihon University School of Medicine, 30-1, Oyaguchikami-machi, Itabashi-ku, Tokyo, 173-8610, Japan.
| | - Kiyozumi Suzuki
- Division of General Medicine, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Yuta Hayashi
- Division of Internal Medicine, Sasaki Foundation Kyoundo Hospital, Tokyo, Japan
| | - Jin Ikeda
- Division of General Medicine, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Masaru Kushimoto
- Division of General Medicine, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Wataru Omoto
- Division of General Medicine, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Motohiko Hara
- Department of Nursing, School of Health and Social Services, Saitama Prefectural University, Saitama, Japan
- Department of Rehabilitation, Saitama Medical University, Saitama, Japan
| | - Masanori Abe
- Division of Nephrology, Hypertension and Endocrinology, Department of Medicine, Nihon University School of Medicine, 30-1, Oyaguchikami-machi, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Kimitoshi Kato
- Division of General Medicine, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Masayoshi Soma
- Division of General Medicine, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
- Division of Internal Medicine, Sasaki Foundation Kyoundo Hospital, Tokyo, Japan
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Kanamoto R, Otsuka H, Anegawa T, Takaseya T, Shintani Y, Tobinaga S, Onitsuka S, Ueno M, Hiromatsu S, Tanaka H. P5601High pulse wave velocity is associated with poor shrinkage of abdominal aortic aneurysm in endovascular aneurysm repair patients. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0545] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Endovascular aneurysm repair (EVAR) has widely spread for treatment of abdominal aortic aneurysm (AAA). However, the effects of EVAR on vascular function remain to be clarified. According to several reports, changes in aortic stiffness after EVAR reflect badly on future cardiovascular events. Recently, brachial-ankle pulse wave velocity (baPWV) is accepted as the most simple and reproducible method to determine the aortic stiffness.
Purpose
We aimed to evaluate the change of baPWV following EVAR and investigate the relationship between the aortic stiffness and the long-term outcomes following EVAR.
Methods
We enrolled 172 patients who underwent primary EVAR between January 2009 and December 2017 in our University hospital. Patients with saccular aneurysm, iliac aneurysm and pseudo aneurysm were excluded from the analysis. PWV data were collected before and 1 week after EVAR. PWV was measured as the mean baPWV values of both lower limbs. The long-term outcomes were evaluated with the cardiovascular event and AAA changing rate (mm/year) which was calculated by computed tomographic scanning at the preoperative and latest imaging studies. The cardiovascular event was defined as the expansion of thoracic or abdominal aortic aneurysm (>10 mm or >5 mm/year), central nervous system disorder, acute heart failure, new arrhythmia, peripheral arterial disease. Receiver operating characteristic (ROC) curve analysis was used to evaluate the cut off values of preoperative baPWV (pre-PWV) and postoperative baPWV (post-PWV) for the risk factor of cardiovascular event.
Results
The mean age was 76.6±7.5 years and 149 patients (86.7%) were male. The mean follow-up period was 41.6±27.0 months. The mean AAA changing rate was −1.84±4.72 mm/year. Post-PWV was significantly increased compared to pre-PWV (pre-PWV v.s. post-PWV; 1885±382 cm/s vs. 2060±528 cm/s, p<0.0001). The optimal cut-off values of the pre and post PWV for predicting cardiovascular events were 1900 cm/s and 2100 cm/s, respectively. The Kaplan-Meier curves indicate that 5 year-cardiovascular event free rates were 45.9% in the patients with pre PWV ≥1900 cm/s and 73.2% in the patients with pre PWV <1900 cm/s (p=0.0185). Similarly, 5 year-cardiovascular event free rates were 46.6% in the patients with post-PWV ≥2100cm/s and 73.4% in the patients with post PWV <2100 cm/s (p=0.0162). Furthermore, the linear regression analysis indicated that post-PWV values correlated positively with the AAA changing rate (r=0.1811, p=0.0195) while pre-PWV was not associated with AAA changing rate (r=0.1211, p=0.1201).
Conclusions
Our results show that EVAR increase aortic stiffness in the acute phases and high post-baPWV is associated with poor shrinkage of abdominal aortic aneurysm in EVAR patients. This is the first study to demonstrate the association between high PWV and poor long-term outcome in endovascular aneurysm repair patients.
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Affiliation(s)
- R Kanamoto
- Kurume University, Division of Cardiovascular Surgery, Department of Surgery, Fukuoka, Japan
| | - H Otsuka
- Kurume University, Division of Cardiovascular Surgery, Department of Surgery, Fukuoka, Japan
| | - T Anegawa
- Kurume University, Division of Cardiovascular Surgery, Department of Surgery, Fukuoka, Japan
| | - T Takaseya
- Kurume University, Division of Cardiovascular Surgery, Department of Surgery, Fukuoka, Japan
| | - Y Shintani
- Kurume University, Division of Cardiovascular Surgery, Department of Surgery, Fukuoka, Japan
| | - S Tobinaga
- Kurume University, Division of Cardiovascular Surgery, Department of Surgery, Fukuoka, Japan
| | - S Onitsuka
- Kurume University, Division of Cardiovascular Surgery, Department of Surgery, Fukuoka, Japan
| | - M Ueno
- Tenyoukai Central Hospital, Department of Cardiovascular Surgery, Kagoshima, Japan
| | - S Hiromatsu
- Kurume University, Division of Cardiovascular Surgery, Department of Surgery, Fukuoka, Japan
| | - H Tanaka
- Kurume University, Division of Cardiovascular Surgery, Department of Surgery, Fukuoka, Japan
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Kobayashi H, Otsuka H, Yanai M, Hara M, Hishiki M, Soma M, Abe M. Adiponectin Receptor gene Polymorphisms are Associated with Kidney Function in Elderly Japanese Populations. J Atheroscler Thromb 2018; 26:328-339. [PMID: 30135333 PMCID: PMC6456456 DOI: 10.5551/jat.45609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Aim: Adiponectin exhibits its biological effects through adiponectin receptors (AdipoR1 and AdipoR2), which are distributed in the kidneys, and activation of those receptors could prevent or ameliorate diabetic nephropathy. This study aimed to evaluate the associations between AdipoR single nucleotide polymorphisms (SNPs) and kidney function in an elderly Japanese population. Methods: A total of 271 elderly Japanese volunteers underwent anthropometric and laboratory tests (cystatin C-based eGFR and total and high molecular weight adiponectin levels at baseline and a follow-up visit). Genotype data were obtained for the selected 7 and 5 AdipoR1 and AdipoR2 SNPs, respectively. Results: In a cross-sectional analysis at baseline, we found a significant association between the AdipoR2 SNP rs12230440 and kidney function; eGFRcys tended to increase as the number of carriers of T alleles increased after adjustment for covariates and Bonferroni correction, although the association of the SNP and annual eGFR decline could not be identified in the longitudinal data. Regarding the variants rs16850797, rs11061925, and rs10773983, each of the allele G, allele C, and allele G showed nominally significant associations with higher eGFRcys. However, this failed to reach significance after Bonferroni correction. Conclusion: Here, an AdipoR2 SNP was associated with kidney function, suggesting that the effects of this polymorphism on adiponectin receptor may affect kidney function in the elderly Japanese population.
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Affiliation(s)
- Hiroki Kobayashi
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine
| | - Hiromasa Otsuka
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine
| | - Mitsuru Yanai
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine
| | - Motohiko Hara
- Department of Nursing, School of Health and Social Services, Saitama Prefectural University
| | - Mikano Hishiki
- Department of Diabetes and Endocrinology, Tokyo Metropolitan Hiroo Hospital
| | - Masayoshi Soma
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine
| | - Masanori Abe
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine
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10
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Abstract
Adiponectin secreted by adipocytes plays an important role in the regulation of glucose and fatty acid metabolism. Contrary to findings in patients with chronic kidney disease (CKD), no prospective data about the association of serum adiponectin with renal function decline in the general population have yet appeared. Our objective was to analyze the relationship of total and high molecular weight (HMW) adiponectin with renal function decline as measured by cystatin C in community-dwelling elderly adults without moderate or severe CKD.In a prospective observational analysis, a total of 216 healthy elderly volunteers with eGFRcys ≥60 mL/min/1.73 m underwent anthropometric and laboratory tests at baseline and at follow-up visits. A subgroup with serum samples collected 5 years apart was further analyzed.There were no differences in either total or HMW adiponectin level between subjects subsequently undergoing rapid renal function decline and subjects with normal physiologic renal function decline (P = .71, P = .81). On univariate linear regression, neither total nor HMW adiponectin were associated with annual renal function decline (β = -0.23; P = .71, β = -0.057; P = .90). Multivariate analysis did not show a significant contribution of either total or HMW adiponectin to annual renal function decline (β = -0.50; P = .46, β = 0.01; P = .98). In the logistic regression analysis, we did not observe any statistically significant association of serum adiponectin levels with rapid renal function decline or incidence of CKD.Contrary to findings in populations with CKD, neither total nor HMW adiponectin had a substantial association with renal function decline in an elderly population with eGFRcys ≥60 mL/min/1.73 m. Our results and conclusions should not be extrapolated to subjects with other characteristics.
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Affiliation(s)
| | - Hiromasa Otsuka
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine, Itabashi-ku, Tokyo
| | - Mitsuru Yanai
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine, Itabashi-ku, Tokyo
| | - Akira Haketa
- Division of Nephrology, Hypertension and Endocrinology
| | - Motohiko Hara
- Department of Nursing, School of Health and Social Services, Saitama Prefectural University, Koshigaya-shi, Saitama
| | - Mikano Hishiki
- Department of Diabetes and Endocrinology, Tokyo Metropolitan Hiroo Hospital, Shibuya-ku, Tokyo, Japan
| | - Masanori Abe
- Division of Nephrology, Hypertension and Endocrinology
| | - Masayoshi Soma
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine, Itabashi-ku, Tokyo
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Abstract
Edwardsiella tarda is commonly isolated from aquatic environments and a variety of animals. We present the first case of E. tarda bacteremia with psoas and epidural abscess. The patient was a 65-year-old woman with recurrent gastric cancer who had frequently consumed raw fish and grilled eel. She was successfully treated with antimicrobials and surgery. We also review reports published in English regarding E. tarda bacteremia in Japan and the experience at our hospital. On the basis of this review, we conclude that the major underlying disease leading to E. tarda bacteremia is malignancy and that the gastrointestinal tract is the most commonly affected organ. The overall mortality rate due to E. tarda bacteremia in our review was 38.1% (8/21). Although E. tarda bacteremia is rare, clinicians should be aware of this fatal food-borne infection.
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Affiliation(s)
- Kiyozumi Suzuki
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine, Japan
| | - Mitsuru Yanai
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine, Japan
| | - Yuta Hayashi
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine, Japan
| | - Hiromasa Otsuka
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine, Japan
| | - Kimitoshi Kato
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine, Japan
| | - Masayoshi Soma
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine, Japan
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Azuma Y, Otsuka H, Makino T, Koezuka S, Isobe K, Sakamoto S, Tochigi N, Shibuya K, Homma S, Iyoda A. P3.16-004 Surgery for Patients with Lung Cancer Associated with Interstitial Pneumonia. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1810] [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: 10/18/2022]
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13
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Affiliation(s)
- Kiyozumi Suzuki
- Department of General Medicine, Juntendo University Faculty of Medicine, Japan
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine, Japan
- Department of Emergency Room and General Medicine, Ageo Central General Hospital, Japan
| | - Hiromasa Otsuka
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine, Japan
- Department of Emergency Room and General Medicine, Ageo Central General Hospital, Japan
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14
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Giang PM, Binh NT, Nhan TTT, Thuy HT, Trang VM, Son PT, Otsuka H, Matsunami K. The First Isolation of 25,26,27-trisnor-3β-acetoxycycloartan-24-oic Acid and the Absolute Configuration of 3R,4R-O-di-caffeoyl Quinic Acid from Artemisia japonica. Chem Nat Compd 2017. [DOI: 10.1007/s10600-017-2088-y] [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: 11/30/2022]
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15
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Kobayashi H, Haketa A, Ueno T, Ikeda Y, Hatanaka Y, Tanaka S, Otsuka H, Abe M, Fukuda N, Soma M. Scoring system for the diagnosis of bilateral primary aldosteronism in the outpatient setting before adrenal venous sampling. Clin Endocrinol (Oxf) 2017; 86:467-472. [PMID: 27862131 DOI: 10.1111/cen.13278] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 09/26/2016] [Accepted: 11/04/2016] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The only reliable method for subtyping primary aldosteronism (PA) is adrenal venous sampling (AVS), which is costly and time-consuming. Considering the limited availability of AVS, it would be helpful to obtain information on the diagnosis of bilateral hyperaldosteronism (BHA) from routine tests. We aimed to establish new, simple criteria for outpatients to diagnose BHA from PA before AVS. DESIGN We retrospectively analysed 82 patients who were diagnosed with PA and underwent AVS. Thirty-seven patients were diagnosed with unilateral hyperaldosteronism (UHA), and 36 with BHA and nine were undetermined. Among the variables that were significantly different between UHA and BHA in the univariate analysis, we chose three variables to be included in multivariate logistic regression models and constructed a subtype prediction score. RESULTS The subtype prediction score was calculated as follows: 3 points for no adrenal nodules on computed tomography imaging, 2 for serum potassium of ≥3·5 mmol/l and 2 for aldosterone-to-renin ratio of <490 after a captopril challenge test. Receiver operating characteristic curve analysis for the ability to discriminate BHA from UHA showed that a score of 7 points had 50% sensitivity and 100% specificity and a score of 5 points had 67% sensitivity and 94% specificity (area under the curve: 0·922; 95% CI: 0·863-0·980). CONCLUSIONS Our new, simple criteria specifically distinguished BHA from UHA in the outpatient setting before AVS. Furthermore, not only endocrinologists but also general internists can use this convenient, safe scoring system.
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Affiliation(s)
- Hiroki Kobayashi
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Akira Haketa
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Takahiro Ueno
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Yukihiro Ikeda
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Yoshinari Hatanaka
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Sho Tanaka
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Hiromasa Otsuka
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Masanori Abe
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Noboru Fukuda
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
- Division of Life Science, Advanced Research Institute for the Sciences and Humanities, Nihon University Graduate School, Tokyo, Japan
| | - Masayoshi Soma
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
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16
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Suzuki K, Yanai M, Hayashi Y, Otsuka H, Kato K, Soma M. Pasteurella multocida chest wall abscess without wounds. IDCases 2017; 9:12-13. [PMID: 28560171 PMCID: PMC5440751 DOI: 10.1016/j.idcr.2017.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 05/09/2017] [Accepted: 05/09/2017] [Indexed: 12/02/2022] Open
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17
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Imato K, Natterodt JC, Sapkota J, Goseki R, Weder C, Takahara A, Otsuka H. Dynamic covalent diarylbibenzofuranone-modified nanocellulose: mechanochromic behaviour and application in self-healing polymer composites. Polym Chem 2017. [DOI: 10.1039/c7py00074j] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Surface mechanochemistry of nanocelluloses modified with a dynamic covalent mechanophore is investigated, and self-healing composites with the celluloses are developed.
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Affiliation(s)
- K. Imato
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Tokyo 152-8550
- Japan
- Institute for Materials Chemistry and Engineering
| | - J. C. Natterodt
- Adolphe Merkle Institute
- University of Fribourg
- CH-1700 Fribourg
- Switzerland
| | - J. Sapkota
- Adolphe Merkle Institute
- University of Fribourg
- CH-1700 Fribourg
- Switzerland
| | - R. Goseki
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Tokyo 152-8550
- Japan
| | - C. Weder
- Adolphe Merkle Institute
- University of Fribourg
- CH-1700 Fribourg
- Switzerland
| | - A. Takahara
- Institute for Materials Chemistry and Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - H. Otsuka
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Tokyo 152-8550
- Japan
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18
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Sawada J, Aoki D, Kuzume M, Nakazono K, Otsuka H, Takata T. A vinylic rotaxane cross-linker for toughened network polymers from the radical polymerization of vinyl monomers. Polym Chem 2017. [DOI: 10.1039/c7py00193b] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A [2]rotaxane cross-linker with one vinyl group in each component was synthesized as a vinylic cross-linker for highly toughened network polymers.
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Affiliation(s)
- J. Sawada
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
| | - D. Aoki
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
| | - M. Kuzume
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
| | - K. Nakazono
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
| | - H. Otsuka
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
| | - T. Takata
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
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Kobayashi H, Haketa A, Takahiro U, Otsuka H, Tanaka S, Hatanaka Y, Ikeda Y, Abe M, Fukuda N, Soma M. Plasma adrenocorticotropic hormone but not aldosterone is correlated with blood pressure in patients with aldosterone-producing adenomas. J Clin Hypertens (Greenwich) 2016; 19:280-286. [DOI: 10.1111/jch.12956] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 09/11/2016] [Accepted: 09/17/2016] [Indexed: 11/28/2022]
Affiliation(s)
- Hiroki Kobayashi
- Division of Nephrology; Hypertension and Endocrinology; Department of Internal Medicine; Nihon University School of Medicine; Tokyo Japan
| | - Akira Haketa
- Division of Nephrology; Hypertension and Endocrinology; Department of Internal Medicine; Nihon University School of Medicine; Tokyo Japan
| | - Ueno Takahiro
- Division of Nephrology; Hypertension and Endocrinology; Department of Internal Medicine; Nihon University School of Medicine; Tokyo Japan
| | - Hiromasa Otsuka
- Division of General Medicine; Department of Internal Medicine; Nihon University School of Medicine; Tokyo Japan
| | - Sho Tanaka
- Division of Nephrology; Hypertension and Endocrinology; Department of Internal Medicine; Nihon University School of Medicine; Tokyo Japan
| | - Yoshinari Hatanaka
- Division of Nephrology; Hypertension and Endocrinology; Department of Internal Medicine; Nihon University School of Medicine; Tokyo Japan
| | - Yukihiro Ikeda
- Division of Nephrology; Hypertension and Endocrinology; Department of Internal Medicine; Nihon University School of Medicine; Tokyo Japan
| | - Masanori Abe
- Division of Nephrology; Hypertension and Endocrinology; Department of Internal Medicine; Nihon University School of Medicine; Tokyo Japan
| | - Noboru Fukuda
- Division of Nephrology; Hypertension and Endocrinology; Department of Internal Medicine; Nihon University School of Medicine; Tokyo Japan
- Division of Life Science; Advanced Research Institute for the Sciences and Humanities; Nihon University Graduate School; Tokyo Japan
| | - Masayoshi Soma
- Division of Nephrology; Hypertension and Endocrinology; Department of Internal Medicine; Nihon University School of Medicine; Tokyo Japan
- Division of General Medicine; Department of Internal Medicine; Nihon University School of Medicine; Tokyo Japan
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20
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Kobayashi H, Haketa A, Ueno T, Suzuki R, Aoi N, Ikeda Y, Tahira K, Hatanaka Y, Tanaka S, Otsuka H, Abe M, Fukuda N, Soma M. Subtype prediction in primary aldosteronism: measurement of circadian variation of adrenocortical hormones and 24-h urinary aldosterone. Clin Endocrinol (Oxf) 2016; 84:814-21. [PMID: 26663435 DOI: 10.1111/cen.12998] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 11/11/2015] [Accepted: 11/30/2015] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Currently, adrenal venous sampling (AVS) is the only reliable method to distinguish unilateral from bilateral hyperaldosteronism in primary aldosteronism (PA). However, AVS is costly and time-consuming compared with simple blood tests. In this study, we conducted a retrospective study to determine whether circadian variation in plasma adrenocortical hormone levels (i.e. aldosterone, cortisol and ACTH) and a 24-h urinary aldosterone could contribute to the clinical differentiation between unilateral hyperaldosteronism (UHA) and bilateral hyperaldosteronism (BHA). DESIGN In 64 patients who were diagnosed with PA and underwent AVS, 32 and 22 patients were diagnosed with UHA and BHA, respectively. Plasma adrenocortical hormone levels at 0:00, 6:00, 12:00 and 18:00 and 24-h urinary aldosterone under a condition of 6 g daily dietary sodium chloride intake were measured. RESULTS Baseline plasma aldosterone concentration (PAC) and 24-h urinary aldosterone level in patients with UHA were significantly higher than in patients with BHA, particularly at 6:00. The area under the ROC curve for PAC at 0:00, 6:00, 12:00 and 18:00 and 24-h urinary aldosterone to discriminate UHA and BHA was 0·839 [95% confidence interval (CI); 0·73-0·95], 0·922 (95% CI; 0·85-1·00), 0·875 (95% CI; 0·78-0·97), 0·811 (95% CI; 0·69-0·93), 0·898 (95% CI; 0·81-0·99), respectively. CONCLUSIONS PAC at different blood sampling times and 24-h urinary aldosterone level may be diagnostically helpful in discriminating between UHA and BHA. We believe that these tests could reduce the number of unnecessary AVS procedures.
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Affiliation(s)
- Hiroki Kobayashi
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Akira Haketa
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Takahiro Ueno
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Ryo Suzuki
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Noriko Aoi
- Division of Genomic Epidemiology and Clinical Trials, Department of Advanced Medical Science, Nihon University School of Medicine, Tokyo, Japan
| | - Yukihiro Ikeda
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Kazunobu Tahira
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Yoshinari Hatanaka
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Sho Tanaka
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Hiromasa Otsuka
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Masanori Abe
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Noboru Fukuda
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
- Division of Life Science, Advanced Research Institute for the Sciences and Humanities, Nihon University Graduate School, Tokyo, Japan
| | - Masayoshi Soma
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
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21
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Suzuki K, Hayashi Y, Otsuka H, Orita M, Kuwana T, Hashimoto K, Kasamaki Y, Yanai M, Kinoshita K, Soma M. A Case of Lemierre's Syndrome Associated with Necrotizing Fasciitis and Septic Embolization. ACTA ACUST UNITED AC 2016; 105:99-104. [DOI: 10.2169/naika.105.99] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kiyozumi Suzuki
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine
- Department of General Medicine, Juntendo University School of Medicine
| | - Yuta Hayashi
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine
| | - Hiromasa Otsuka
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine
| | - Minori Orita
- Division of Emergency and Critical Care Medicine, Department of Acute Medicine, Nihon University School of Medicine
| | - Tsukasa Kuwana
- Division of Emergency and Critical Care Medicine, Department of Acute Medicine, Nihon University School of Medicine
| | - Kenichi Hashimoto
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine
| | - Yuji Kasamaki
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine
| | - Mitsuru Yanai
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine
| | - Kosaku Kinoshita
- Division of Emergency and Critical Care Medicine, Department of Acute Medicine, Nihon University School of Medicine
| | - Masayoshi Soma
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine
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22
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Yanai M, Gon Y, Suzuki K, Hayashi Y, Hasumi S, Otsuka H, Soma M. Clinical usefulness of serum 2'-5'-oligoadenylate synthetase for early diagnosis of viral infections among febrile adult patients. Infect Dis (Lond) 2015; 48:338-42. [PMID: 26624960 DOI: 10.3109/23744235.2015.1118531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND This study aimed to evaluate the clinical usefulness of serum 2'-5'-oligoadenylate synthetase (2-5AS) levels in diagnosing viral infection. METHODS 2-5AS, procalcitonin (PCT) and C-reactive protein (CRP) serum levels and leukocyte counts were evaluated in 104 febrile patients (26 viral and 55 bacterial infections, 23 non-infectious diseases). RESULTS Assessment of areas under the receiver-operator characteristic curves revealed that 2-5AS and CRP levels and the age of the patient differentiated between viral and bacterial infections, 2-5AS levels differentiated between viral infection and non-infectious disease and PCT levels differentiated between bacterial infection and non-infectious disease. The decision tree constructed according to the results correctly classified the origin of fever in 88 of 104 patients (85%). CONCLUSIONS 2-5AS is a useful diagnostic biomarker for viral infections and combining it with the PCT and CRP levels and leukocyte counts improves determination of causes of fever.
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Affiliation(s)
| | - Yasuhiro Gon
- b Division of Respiratory Medicine, Department of Internal Medicine , Nihon University School of Medicine , Tokyo , Japan
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23
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Suzuki K, Hayashi Y, Otsuka H, Hashimoto K, Kasamaki Y, Yanai M, Kato K, Nagai Y, Soma M. [Invasive pneumococcal disease of serotype 6C with skin and soft tissue infections in an immunocompetent adult]. Kansenshogaku Zasshi 2015; 88:849-54. [PMID: 25764807 DOI: 10.11150/kansenshogakuzasshi.88.849] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
We report herein on a rare case of deep-soft tissue infection due to invasive pneumococcal disease (IPD). A 77-year-old woman was admitted to our hospital with progressive pain in the right upper arm and the distal leg associated with swelling. We diagnosed the condition as multiple instances of cellulitis that were initially treated with ceftriaxone and clindamycin. Penicillin-susceptible Streptococcus pneumoniae (PSSP) was isolated from blood cultures on admission. Although inflammatory marker levels improved following susceptive antibiotic therapy (ampicillin), multiple abscesses, septic arthritis and osteomyelitis were detected with image testing. The antibiotic was then changed to meropenem and arthroscopic surgery was performed for the right shoulder; the patient's clinical symptoms improved. Since pneumococcal infection including skin and soft tissue infection (SSTI) often causes blood stream invasion or metastatic suppurative complications, metastatic lesions or multiple abscesses should be taken care of.
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24
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Inagaki A, Nishimura Y, Otsuka H, Hirakawa H, Hatou K, Kubota Y, Watanabe Y, Miki K, Endoh Y. Outpatient Treatment of Adolescents with Antidepressants in Japan. Value Health 2014; 17:A770. [PMID: 27202836 DOI: 10.1016/j.jval.2014.08.312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- A Inagaki
- Aoyama Gakuin University, Tokyo, Japan
| | - Y Nishimura
- Japanese Association of Mental Health Services, Tokyo, Japan
| | - H Otsuka
- Japanese Association of Mental Health Services, Tokyo, Japan
| | - H Hirakawa
- Japanese Association of Mental Health Services, Tokyo, Japan
| | - K Hatou
- Japanese Association of Mental Health Services, Tokyo, Japan
| | - Y Kubota
- Japanese Association of Neuro-Psychiatric Clinics, Tokyo, Japan
| | - Y Watanabe
- Japanese Association of Neuro-Psychiatric Clinics, Tokyo, Japan
| | - K Miki
- Japanese Association of Neuro-Psychiatric Clinics, Tokyo, Japan
| | - Y Endoh
- Institute of Neuropsychiatry, Tokyo, Japan
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25
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Inagaki A, Nishimura Y, Otsuka H, Hirakawa H, Hatou K, Kubota Y, Watanabe Y, Miki K, Endoh Y. Outpatient Treatment of Adolescents in Japan with Drugs for Attention Deficit Disorders. Value Health 2014; 17:A455. [PMID: 27201264 DOI: 10.1016/j.jval.2014.08.1245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- A Inagaki
- Aoyama Gakuin University, Tokyo, Japan
| | - Y Nishimura
- Japanese Association of Mental Health Services, Tokyo, Japan
| | - H Otsuka
- Japanese Association of Mental Health Services, Tokyo, Japan
| | - H Hirakawa
- Japanese Association of Mental Health Services, Tokyo, Japan
| | - K Hatou
- Japanese Association of Mental Health Services, Tokyo, Japan
| | - Y Kubota
- Japanese Association of Neuro-Psychiatric Clinics, Tokyo, Japan
| | - Y Watanabe
- Japanese Association of Neuro-Psychiatric Clinics, Tokyo, Japan
| | - K Miki
- Japanese Association of Neuro-Psychiatric Clinics, Tokyo, Japan
| | - Y Endoh
- Institute of Neuropsychiatry, Tokyo, Japan
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26
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Sato M, Iizuka T, Watanabe A, Iwase N, Otsuka H, Terada N, Fujisawa M. Electromyogram biofeedback training for daytime clenching and its effect on sleep bruxism. J Oral Rehabil 2014; 42:83-9. [PMID: 25256380 DOI: 10.1111/joor.12233] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/30/2014] [Indexed: 11/30/2022]
Abstract
Bruxism contributes to the development of temporomandibular disorders as well as causes dental problems. Although it is an important issue in clinical dentistry, no treatment approaches have been proven effective. This study aimed to use electromyogram (EMG) biofeedback (BF) training to improve awake bruxism (AB) and examine its effect on sleep bruxism (SB). Twelve male participants (mean age, 26·8 ± 2·5 years) with subjective symptoms of AB or a diagnosis of SB were randomly divided into BF (n = 7) and control (CO, n = 5) groups to undergo 5-h daytime and night-time EMG measurements for three consecutive weeks. EMG electrodes were placed over the temporalis muscle on the habitual masticatory side. Those in the BF group underwent BF training to remind them of the occurrence of undesirable clenching activity when excessive EMG activity of certain burst duration was generated in week 2. Then, EMGs were recorded at week 3 as the post-BF test. Those in the CO group underwent EMG measurement without any EMG BF training throughout the study period. Although the number of tonic EMG events did not show statistically significant differences among weeks 1-3 in the CO group, events in weeks 2 and 3 decreased significantly compared with those in week 1, both daytime and night-time, in the BF group (P < 0·05, Scheffé's test). This study results suggest that EMG BF to improve AB tonic EMG events can also provide an effective approach to regulate SB tonic EMG events.
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Affiliation(s)
- M Sato
- Division of Fixed Prosthodontics, Department of Restorative and Biomaterials Sciences, School of Dentistry, Meikai University, Sakado, Japan
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27
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Sasatomi T, Oochi T, Otsuka H, Ogata Y, Shirouzu K. CTLS/Regulatory T-Cells Ratio as a Prediction Marker of Chemotherapy in Metastatic Colorectal Cancer. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt460.133] [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: 11/12/2022] Open
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28
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Toba H, Kondo K, Sadohara Y, Otsuka H, Morimoto M, Kajiura K, Nakagawa Y, Yoshida M, Kawakami Y, Takizawa H, Kenzaki K, Sakiyama S, Bando Y, Tangoku A. 18F-fluorodeoxyglucose positron emission tomography/computed tomography and the relationship between fluorodeoxyglucose uptake and the expression of hypoxia-inducible factor-1 , glucose transporter-1 and vascular endothelial growth factor in thymic epithelial tumours. Eur J Cardiothorac Surg 2013; 44:e105-12. [DOI: 10.1093/ejcts/ezt263] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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29
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Kodama M, Iwai S, Onoue M, Yano Y, Takayama T, Yoshimi K, Otsuka H, Hashimoto N, Saeki N, Funato T. Endometrium Thinning by Dienogest before Hysteroscopoic Surgery. J Minim Invasive Gynecol 2012. [DOI: 10.1016/j.jmig.2012.08.677] [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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30
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Tsutahara K, Okumi M, Kakuta Y, Abe T, Yazawa K, Miyagawa S, Matsunami K, Otsuka H, Kaimori J, Takahara S, Nonomura N. The blocking of CXCR3 and CCR5 suppresses the infiltration of T lymphocytes in rat renal ischemia reperfusion. Nephrol Dial Transplant 2012; 27:3799-806. [DOI: 10.1093/ndt/gfs360] [Citation(s) in RCA: 18] [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: 12/14/2022] Open
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Ogo E, Suzuki G, Abe T, Watanabe Y, Hattori C, Hayabuchi N, Otsuka H, Iwakuma N, Nakagawa S, Toh U. 478 Radiation-induced Pulmonary Injury After Radiotherapy for Early Breast Conserving Therapy. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)70543-9] [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: 10/28/2022]
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Iwakuma N, Toh U, Grobmyer S, Koura K, Takenaka M, Otsuka H, Takahashi R, Shirouzu K. 75 The Potential of Targeting Nanoparticle for Breast Cancer Diagnosis. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)70143-0] [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: 11/25/2022]
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Kodama M, Onoue M, Yoshimi K, Hisa T, Otsuka H, Hashimoto N, Saeki N, Funato T. Ingenious Method for Hysteroscopic Resection of Giant Submucous Myoma Descending to the Vagina. J Minim Invasive Gynecol 2011. [DOI: 10.1016/j.jmig.2011.08.525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Akiyama H, Yamamoto K, Tsukanaka M, Kawanabe K, Otsuka H, So K, Goto K, Nakamura T. Revision total hip arthroplasty using a Kerboull-type acetabular reinforcement device with bone allograft. ACTA ACUST UNITED AC 2011; 93:1194-200. [DOI: 10.1302/0301-620x.93b9.26598] [Citation(s) in RCA: 26] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We retrospectively reviewed 40 hips in 36 patients who had undergone acetabular reconstruction using a titanium Kerboull-type acetabular reinforcement device with bone allografts between May 2001 and April 2006. Impacted bone allografts were used for the management of American Academy of Orthopaedic Surgeons Type II defects in 17 hips, and bulk bone allografts together with impacted allografts were used for the management of Type III defects in 23 hips. A total of five hips showed radiological failure at a mean follow-up of 6.7 years (4.5 to 9.3), two of which were infected. The mean pre-operative Merle d’Aubigné score was 10 (5 to 15) vs 13.6 (9 to 18) at the latest follow-up. The Kaplan-Meier survival rate at ten years, calculated using radiological failure or revision of the acetabular component for any reason as the endpoint, was 87% (95% confidence interval 76.3 to 97.7). A separate experimental analysis of the mechanical properties of the device and the load-displacement properties of bone grafts showed that a structurally hard allograft resected from femoral heads of patients with osteoarthritis should be preferentially used in any type of defect. If impacted bone allografts were used, a bone graft thickness of < 25 mm was acceptable in Type II defects. This clinical study indicates that revision total hip replacement using the Kerboull-type acetabular reinforcement device with bone allografts yielded satisfactory mid-term results.
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Affiliation(s)
- H. Akiyama
- Kobe City Medical Center General Hospital, Department of Orthopaedics, 4-6, Minatojimanakamachi, Chuo-ku, Kobe-City, Hyogo 650-0046, Japan
| | - K. Yamamoto
- Kobe City Medical Center General Hospital, Department of Orthopaedics, 4-6, Minatojimanakamachi, Chuo-ku, Kobe-City, Hyogo 650-0046, Japan
| | - M. Tsukanaka
- Kobe City Medical Center General Hospital, Department of Orthopaedics, 4-6, Minatojimanakamachi, Chuo-ku, Kobe-City, Hyogo 650-0046, Japan
| | - K. Kawanabe
- Kobe City Medical Center General Hospital, Department of Orthopaedics, 4-6, Minatojimanakamachi, Chuo-ku, Kobe-City, Hyogo 650-0046, Japan
| | - H. Otsuka
- Aichi Medical University, Department of Orthopaedics, Nagakute, Aichi 480-1195, Japan
| | - K. So
- Kyoto University, Department of Orthopaedics, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto 606-8507, Japan
| | - K. Goto
- Kyoto University, Department of Orthopaedics, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto 606-8507, Japan
| | - T. Nakamura
- Kyoto University, Department of Orthopaedics, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto 606-8507, Japan
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Toh U, Iwakuma N, Otsuka H, Takenaka M, Ogo E, Fujii T, Tanaka M, Shirouzu K. A multicenter phase II study of S-1 combined with irinotecan (CPT-11) for patients with advanced/recurrent breast cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e11528] [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: 11/20/2022] Open
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Toh U, Iwakuma N, Otsuka H, Ogo E, Fujii T, Tanaka M, Itoh K, Shirouzu K. P326 Immunologic and clinical effects of personalized selection of peptide vaccines in patients with refractory breast cancer. Breast 2011. [DOI: 10.1016/s0960-9776(11)70264-8] [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: 10/18/2022] Open
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Abstract
AbstractFe-Mn-Si based alloys are non-thermoelastic shape memory alloys which utilize the stress-induced transformation from γ austenite to ε martensite. After these shape memory alloys are deformed at room temperature, they recover their original shape when heated to 473K or higher. Fe-Mn-Si based alloys contain 15% to 33% Mn, 5% to 6% Si, 0% to 13% Cr, and 0% to 10% Ni in weight. Mn and Si are indispensable for the development of shape memory effect (SME). The amounts of these elements require to be adjusted so that the Neel temperature (TN) lies lower than Ms temperature and the Ms lies just below room temperature. Though the volume of stress-induced martensite is only 20 to 30%, a thermomechanical treatment called “training” has made it possible for the alloy to recover from a tensi le deformation exceeding 3%. Today, the use of the shape memory al loys for steel pipe joints is being studied. They have already been put into practical use for an auxiliary bicycle part to clamp the frame.
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Toh U, Otsuka H, Iwakuma N, Shirouzu K, Ogo E, Yamana H, Itoh K, Tanaka M, Fujii T. A phase II study of personalized selection of peptide vaccines combined with conventional chemo- or endocrine therapy for refractory breast cancer. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.tps173] [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: 11/20/2022] Open
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Sakai A, Oshige T, Zenke Y, Yamanaka Y, Otsuka H, Nakamura T. Shorter unipedal standing time and lower bone mineral density in women with distal radius fractures. Osteoporos Int 2010; 21:733-9. [PMID: 19543845 DOI: 10.1007/s00198-009-0992-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2009] [Accepted: 06/01/2009] [Indexed: 10/20/2022]
Abstract
UNLABELLED Unipedal standing time was shorter and bone mineral density was lower in Japanese women aged 50 years and over with low-energy distal radius fractures resulting from falls than those in age-matched community-dwelling Japanese women without distal radius fractures. INTRODUCTION The aim of this study was to compare unipedal standing time and bone mineral density (BMD) of women >or=50 years of age with distal radius fractures with those of age-matched women without fractures. METHODS Fracture group was 54 Japanese women with low-energy distal radius fractures resulting from fall. Non-fracture group was 52 community-dwelling Japanese women without fractures. Unipedal standing time and BMD were measured. RESULTS There were no significant differences in age and body mass index between the two groups. The percentage of women with unipedal standing time <15 s was 44.4% in the fracture group and 13.5% in the non-fracture group, while the respective frequencies for >120 s were 20.4% and 50.0%. The T-score of BMD was significantly lower in the fracture than non-fracture group. Logistic regression analysis identified unipedal standing time <15 s and T-score <70% as significant factors associated with distal radius fractures. Notably, T-score <70% was significant in subjects <65 years, and unipedal standing time <15 s was significant in those >or=65 years. CONCLUSION Unipedal standing time was shorter and BMD was lower in women >or=50 years of age with distal radius fractures than those in age-matched women without fractures.
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Affiliation(s)
- A Sakai
- Department of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, Yahatanishi-ku, Kitakyushu, Japan.
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Toh U, Fukushima T, Fukunaga M, Iwakuma N, Takenaka M, Otsuka H, Shirouzu K, Ogo E. 494 Phase II study of S-1 in combination with irinotecan (CPT-11) for patients with advanced/recurrent breast cancer (KSCOG-BC01). EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)70515-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Otsuka H, Toh U, Fukushima T, Fukunaga M, Iwakuma N, Shiruzu K. 635 The usefulness of screening FDG-PET for breast cancer. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)70655-8] [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: 10/19/2022] Open
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Takahashi J, Kawakami K, Otsuka H, Fujii H. Atom probe analysis of titanium hydride precipitates. Ultramicroscopy 2009; 109:568-73. [DOI: 10.1016/j.ultramic.2008.11.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2008] [Revised: 11/11/2008] [Accepted: 11/19/2008] [Indexed: 11/16/2022]
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Matsunami K, Otsuka H, Xu H, Firdawes S, Yamamoto A, Ishimaru A, Fukuzawa M, Miyagawa S. Molecular cloning of pig Rad51, Rad52, and Rad54 genes, which are involved in homologous recombination machinery. Transplant Proc 2008; 40:2776-8. [PMID: 18929859 DOI: 10.1016/j.transproceed.2008.08.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND The low rate of homologous recombination in somatic cells is considered to be an urgent issue. Therefore, we molecularly cloned three genes that relate to efficient homologous recombination. METHODS Polymerase chain reaction (PCR) was performed to isolate candidate cDNA fragments from a pig spleen cDNA library with the corresponding primer sets deduced from multiple alignment analysis of other mammalian genes. A 5'- and 3'-RACE PCR experiment was performed to determine the complete cDNA sequences. RESULTS The complete cDNA sequences of the pig RAD51, RAD52, and RAD54 genes, which are closely related to homologous recombination events, were identified using molecular cloning technique. The cDNA sequences of three genes were successfully isolated by PCR-based methods. As a result, we determined the sequences of pig RAD51 (1663 bp, 339 aa), RAD52 (1884 bp, 406 aa), and RAD54 (2884 bp, 747 aa). The nucleic acid sequence homologies of the pig RAD51, RAD52, and RAD54 genes compared with the corresponding human genes were 92.9%, 77.3%, and 90.0%; the corresponding amino acid sequence homologies were 98.8%, 71.1%, and 95.0%, respectively. CONCLUSION The knockout of alpha-1,3-galactosyltransferase in pigs resulted in a drastic reduction in xenoantigenicity. However, other xenoantigens, in particular, the non-Gal antigens, also need to be down-regulated. Gene transfer to alter expression levels of these recombination-related molecules and/or ex ante evaluation of expression profiles of these genes in primary cultures of somatic cells constitute a new approach to enhancing homologous recombination events during the production of gene knockout pigs.
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Affiliation(s)
- K Matsunami
- Division of Organ Transplantation, Department of Molecular therapeutics, Osaka University Graduate School of Medicine, Osaka, Japan
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Matsunami K, Otsuka H, Xu H, Furidaus S, Ishimaru A, Fukuzawa M, Miyagawa S. Isolation and sequencing of pig Blm and Ubl-1/SUMO-1 genes that relate to the recombination machinery. Transplant Proc 2008; 40:2773-5. [PMID: 18929858 DOI: 10.1016/j.transproceed.2008.08.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND The gene knockout technique is important in xenotransplantation research. Herein we have described the molecular cloning of two genes that are candidates to overcome the poor rate of homologous recombination. METHODS Candidate cDNA fragments were amplified by polymerase chain reaction (PCR) with the corresponding primer sets deduced from a multiple alignment analysis of other mammalian genes from a cDNA library prepared from pig spleen tissue. To obtain the full-length cDNA, a 5'- and 3'-RACE PCR experiments was performed. RESULTS We successfully isolated the cDNA sequences of two pig genes--BLM, a Bloom's syndrome-related gene, and UBL-1/SUMO-1--which are closely related to homologous recombination events. As a result, we verified the sequences of pig BLM and pig UBL-1/SUMO-1. The nucleic acid and amino acid coding sequence homologies of pig BLM gene with the corresponding human gene were 87.3% and 82.9%, respectively. The nucleic acid and amino acid coding sequence homologies of the pig UBL-1/SUMO-1 gene with the human gene were 96.4% and 100%, respectively. CONCLUSION Current research into homologous recombination provides the possibility for improvement of gene knockout efficiency by regulating the gene expression profiles of recombination-related genes. Transient interference with the expression of pig UBL-1/SUMO-1 and BLM is expected to improve gene targeting. The results of the present study provided important information to design siRNA knockdown vectors. They were also useful for ex ante evaluation of expression profiles of these genes in primary cultures of somatic cells, which may enhance the production of gene knockout pigs.
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Affiliation(s)
- K Matsunami
- Division of Organ Transplantation, Department of Molecular therapeutics, Osaka University Graduate School of Medicine, Osaka, Japan
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Yuki M, Sugimoto N, Otsuka H, Tanahashi S, Katoh M, Hirano T, Nishii N, Suzuki K. Recovery of a dog from aplastic anaemia after treatment with mycophenolate mofetil. Aust Vet J 2007; 85:495-7. [DOI: 10.1111/j.1751-0813.2007.00201.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Abstract
Despite extensive experience with prosthetic replacement for the reconstruction of limbs following juxta-articular resection of tumours, there are few reports of prosthetic replacement of the distal radius. We present two cases of massive bone defects of the distal radius in which alumina ceramic prosthetic replacements were used. We evaluated the patients more than ten years after the procedure. Both patients had degenerative changes to the wrist. This, however, was not associated with pain or decreased function, and both had returned to their previous occupation after surgery. When a patient has a massive defect of the distal radius, reconstruction using a ceramic prosthesis is a reasonable alternative to using autograft. This method of treatment results in little pain, a moderate range of movement and satisfactory function.
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Affiliation(s)
- H Hatano
- Department of Orthopaedic Surgery, Niigata Cancer Center Hospital, Niigata, Japan.
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Kanchanapoom T, Sirikatitham A, Otsuka H, Ruchirawat S. Cuneatoside, a new megastigmane diglycoside from Erythroxylum cuneatum Blume. J Asian Nat Prod Res 2006; 8:747-51. [PMID: 17145665 DOI: 10.1080/10286020500246519] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
A new megastigmane diglycoside, inamoside 6'-O-L-alpha-arabinofuranoside (cuneatoside), was isolated from the leaves and branches of Erythroxylum cuneatum together with seven known compounds, (+)-catechin, quercetin 3-O-alpha-L-rhamnoside, apocynol B, (6S,9R)-roseoside, vomifoliol 9-O-alpha-L-arabinofuranosyl (1-->6)-beta-D-glucopyranoside, inamoside, and citroside A The structural elucidations were based on analyses of physical and spectroscopic data.
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Affiliation(s)
- T Kanchanapoom
- Faculty of Pharmaceutical Sciences, Department of Pharmaceutical Botany and Pharmacognosy, Khon Kaen University, Khon Kaen, 40002, Thailand.
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Oyamada T, Otsuka H, Kohiruimaki M, Ohta J, Yoshikawa H. Well-differentiated biphasic synovial sarcoma in the atlanto-occipital joint of a Holstein cow. Vet Pathol 2004; 41:687-91. [PMID: 15557078 DOI: 10.1354/vp.41-6-687] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A 7-year-old Holstein cow developed a large cystic mass in the region between the atlantoaxis and larynx. The mass extended to the synovium in the atlanto-occipital joint. Many villous projections were present on the inner surface of the tumor tissue, and irregular clefts were formed in the inside. Two cell types, epithelioid-like synovioblasts and spindle cells, were present. Immunohistochemical analysis showed that the cells stained positively for cytokeratin (AE1/AE3) and vimentin. Both cells had similar fine structures ultra-structurally. Vacuoles present in the cytoplasm were full of an acid mucous substance. The tumor was diagnosed as a well-differentiated biphasic synovial sarcoma. This is the first report of a rare case of synovial sarcoma, from the viewpoint of its origin.
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Affiliation(s)
- T Oyamada
- Department of Veterinary Pathology, Faculty of Veterinary Medicine and Animal Sciences, Kitasato University, 034-8628, Higashi 23-35-1, Towada City, Aomori, Japan.
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Kaneko Y, Takashima Y, Xuaun X, Igarashi I, Nagasawa H, Mikami T, Otsuka H. Natural IgM antibodies in sera from various animals but not the cat kill Toxoplasma gondii by activating the classical complement pathway. Parasitology 2004; 128:123-9. [PMID: 15029999 DOI: 10.1017/s0031182003004414] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Sera from swine, rabbit, and dog, that had never been exposed to Toxoplasma gondii, demonstrated significant killing of T. gondii tachyzoites in vitro, while cat serum did not. Swine and rabbit sera contained natural IgM antibody against the tachyzoites, and the classical complement pathway was activated by the binding of natural IgM antibody to the tachyzoites, leading to lysis. Anti-T. gondii antibodies, induced in swine or cat infected with T. gondii, had no killing effect by themselves but killed the tachyzoites in the presence of swine complement. However, the anti-T. gondii antibodies of swine or cat demonstrated a very low killing effect in the presence of cat complement. This suggests that T. gondii tachyzoites have an evasion mechanism to prevent lysis which is specific for cat complement.
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Affiliation(s)
- Y Kaneko
- Department of Global Agricultural Sciences, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
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