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Kelly S, Okuda K, Nakano S, Quinney N, Gallant S, Lee R, Gentzsch M, Randell S, Fulcher M. 423 Novel method for isolation of small airway epithelial cells by bulk enzymatic digestion. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)01113-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Yano K, Yamaguchi K, Seko Y, Okishio S, Ishiba H, Tochiki N, Takahashi A, Kataoka S, Okuda K, Liu Y, Fujii H, Umemura A, Moriguchi M, Okanoue T, Itoh Y. Hepatocyte-specific fibroblast growth factor 21 overexpression ameliorates high-fat diet-induced obesity and liver steatosis in mice. J Transl Med 2022; 102:281-289. [PMID: 34732847 DOI: 10.1038/s41374-021-00680-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 09/11/2021] [Accepted: 09/15/2021] [Indexed: 11/09/2022] Open
Abstract
Fibroblast growth factor (FGF) 21 is an endocrine growth factor mainly secreted by the liver in response to a ketogenic diet and alcohol consumption. FGF21 signaling requires co-receptor β-klotho (KLB) co-acting with FGF receptors, which has pleiotropic metabolic effects, including induced hepatic fatty acid oxidation and ketogenesis, in human and animal models of obesity. We examined the hepatocyte-specific enhancer/promoter of FGF21 expression plasmids in high-fat diet-fed mice for 12 weeks. Hydrodynamic injection for FGF21 delivery every 6 weeks sustained high circulating levels of FGF21, resulting in marked reductions in body weight, epididymal fat mass, insulin resistance, and liver steatosis. FGF21-induced lipolysis in the adipose tissue enabled the liver to be flooded with fat-derived FFAs. The hepatic expression of Glut2 and Bdh1 was upregulated, whereas that of gluconeogenesis-related genes, G6p and Pepck, and lipogenesis-related genes, Srebp-1 and Srebp-2, was significantly suppressed. FGF21 induced the phosphorylation of AMPK at Thr172 and Raptor at ser792 and suppressed that of mTOR at ser2448, which downregulated mTORC1 signaling and reduced IRS-1 phosphorylation at ser1101. Finally, in the skeletal muscle, FGF21 increased Glut4 and Mct2, a membrane protein that acts as a carrier for ketone bodies. Enzymes for ketone body catabolism (Scot) and citrate cycle (Cs, Idh3a), and a marker of regenerating muscle (myogenin) were also upregulated via increased KLB expression. Thus, FGF21-induced lipolysis was continuously induced by a high-fat diet and fat-derived FFAs might cause liver damage. Hepatic fatty acid oxidation and ketone body synthesis may act as hepatic FFAs' disposal mechanisms and contribute to improved liver steatosis. Liver-derived ketone bodies might be used for energy in the skeletal muscle. The potential FGF21-related crosstalk between the liver and extraliver organs is a promising strategy to prevent and treat metabolic syndrome-related nonalcoholic steatohepatitis.
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Affiliation(s)
- Kota Yano
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kanji Yamaguchi
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.
| | - Yuya Seko
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shinya Okishio
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroshi Ishiba
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Nozomi Tochiki
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Aya Takahashi
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Seita Kataoka
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Keiichiroh Okuda
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yu Liu
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hideki Fujii
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Atsushi Umemura
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Michihisa Moriguchi
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takeshi Okanoue
- Department of Gastroenterology & Hepatology, Saiseikai Suita Hospital, Osaka, Japan
| | - Yoshito Itoh
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Tomita N, Okuda K, Hashimoto S, Murai T, Ishikura S. Role of Stereotactic Body Radiotherapy for Early-Stage Non-Small Cell Lung Cancer in Borderline Patients for Surgery due to Impaired Pulmonary Function. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1277] [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: 10/20/2022]
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Lee R, Okuda K, Gallant S, Grubb B, Rogers T, Nakano S, Pickles R, Boucher R, Randell S. 668: Novel method of ex vivo airway tissue culture to model cystic fibrosis. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)02091-9] [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: 10/20/2022]
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Mikami Y, Grubb B, Rogers T, Dang H, Kota P, Gilmore R, Okuda K, Asakura T, Kato T, Gentzsch M, Stutts J, Randell S, O’Neal W, Boucher R. 366: Airway Obstruction Produces Hypoxia-Dependent Sodium Absorption in Human Airway Epithelial Cells. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01790-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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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Asakura T, Okuda K, Chen G, Gilmore R, Kato T, Mikami Y, Cardenas SB, Chua M, Masugi Y, Noone P, Ribeiro C, Doerschuk C, Hasegawa N, Randell S, O’Neal W, Boucher R. 357: Molecular characterization of airway in non-cystic fibrosis bronchiectasis. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01781-1] [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: 10/20/2022]
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Okuda K, Nakajima K, Saito H, Yamashita S, Hashimoto M, Kinuya S. Radiomics analysis of myocardial perfusion SPECT images in patients with cardiomyopathy and heart failure. Eur Heart J Cardiovasc Imaging 2021. [DOI: 10.1093/ehjci/jeab111.036] [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: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): JSPS KAKENHI Grants
Background
Although myocardial perfusion heterogeneity due to focally damaged cardiomyocytes is observed in single−photon emission computed tomography (SPECT) imaging, a current perfusion defect scoring system does not allow us to provide sufficient diagnostic information for heterogeneity.
Purpose
The aim of this study was to perform radiomics analysis of myocardial perfusion SPECT (MPS) images to investigate the potential to detect myocardial perfusion heterogeneity.
Methods
Patients with hypertrophic cardiomyopathy (n = 3), heart failure (n = 9), and with a low likelihood of coronary artery disease (n =15) (Figure 1), who underwent a rest 99mTc-MIBI myocardial perfusion SPECT, were assessed using a LIFEx software. Four shape−based features, 6 histogram−based features, and 32 textural features were computed. The relevant features for the classification of the patients were selected using the Boruta algorithm, and hierarchical clustering of the selected features using the Spearman correlation coefficient was also performed for the feature reduction. The receiver operating characteristics (ROC) analysis was performed by the support vector machine to calculate the area under the ROC curve (AUC) for the selected features.
Results
Of 40 features, 17 were selected by the classification analysis, and these features were classified into 7 classes by the correlation analysis (Figure 2). The ROC AUCs for 7 features extracted from each class were 0.99, 0.97, 0.96, 0.92, 0.90, 0.86, and 0.83 for the contrast of NDGLDM, the entropy of histogram, ZLNU of GLZLM, the energy of GLCM, the energy of histogram, SZLGE of GLZLM, and the correlation of GLCM, respectively, as compared to 0.39 for a summed rest score.
Conclusions
Radiomics analysis successfully determined the myocardial perfusion heterogeneity in patients with cardiomyopathy and heart failure. It might be promising for the evaluation of myocardial damages that cannot be analyzed by the conventional scoring method.
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Affiliation(s)
- K Okuda
- Kanazawa Medical University, Physics, Ishikawa, Japan
| | - K Nakajima
- Kanazawa University Graduate School of Medicine, Functional Imaging and Artificial Intelligence, Kanazawa, Japan
| | - H Saito
- Kanazawa Medical University, Radiological Technology, Kahoku, Japan
| | - S Yamashita
- Public Central Hospital of Matto Ishikawa, Radiology, Hakusan, Japan
| | - M Hashimoto
- Kanazawa Medical University, Physics, Ishikawa, Japan
| | - S Kinuya
- Kanazawa University Hospital, Nuclear Medicine, Kanazawa, Japan
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Seko Y, Yamaguchi K, Tochiki N, Yano K, Takahashi A, Okishio S, Kataoka S, Okuda K, Umemura A, Moriguchi M, Itoh Y. The Effect of Genetic Polymorphism in Response to Body Weight Reduction in Japanese Patients with Nonalcoholic Fatty Liver Disease. Genes (Basel) 2021; 12:genes12050628. [PMID: 33922278 PMCID: PMC8145113 DOI: 10.3390/genes12050628] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 04/11/2021] [Accepted: 04/21/2021] [Indexed: 02/07/2023] Open
Abstract
Background: weight loss as a result of lifestyle intervention is effective when treating non-alcoholic fatty liver disease (NAFLD). We estimated the effects of PNPLA3 rs738409 and HSD17B13 rs6834314 variants in response to diet therapy in Japanese patients with NAFLD. Methods: we analyzed the correlation between the change in liver stiffness and change in body weight in 140 patients administered diet therapy for 1-year, according to PNPLA3 and HSD17B13 genotypes. Results: the bodyweight (BW) reduction rate was greater in patients with the PNPLA3 genotype CC than CG and GG (p = 0.035). Change in liver stiffness measurement (LSM) was significantly associated with a change in BW in PNPLA3 CG/GG (r = 0.279/0.381), but not in PNPLA3 CC (p = 0.187). Change in LSM was correlated with change in BW only in patients with HSD17B13 AG/GG (r = 0.425), but not the AA genotype (p = 0.069). A multivariate analysis identified that a change in LSM was correlated with a change in BW in carriers of HSD17B13 AG/GG (B = 3.043, p = 0.032), but not HSD17B13 AA. The change in LSM of patients with a BW reduction of more than 7% (0.50) was significantly greater than that of patients with a BW reduction of less than 7% (0.83) (p = 0.038). Conclusions: in Japanese patients with NAFLD, HSD17B13 rs6834314 polymorphism is associated with the change in LSM by lifestyle intervention. The approach, including genetic assessments, may contribute to the establishment of appropriate therapeutic strategies to treat NAFLD.
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Seko Y, Yamaguchi K, Umemura A, Yano K, Takahashi A, Okishio S, Kataoka S, Okuda K, Moriguchi M, Okanoue T, Itoh Y. Effect of pemafibrate on fatty acid levels and liver enzymes in non-alcoholic fatty liver disease patients with dyslipidemia: A single-arm, pilot study. Hepatol Res 2020; 50:1328-1336. [PMID: 32926754 DOI: 10.1111/hepr.13571] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 07/21/2020] [Accepted: 08/10/2020] [Indexed: 12/30/2022]
Abstract
AIM Dyslipidemia (DL) is commonly associated with non-alcoholic fatty liver disease (NAFLD). Pemafibrate, a selective peroxisome proliferator activated receptor α modulator (SPPARMα), has been shown to improve liver function among patients with DL. The aim of this single-arm prospective study is to evaluate the efficacy of pemafibrate in NAFLD patients with DL. METHODS Twenty NAFLD patients with DL who received pemafibrate (0.1 mg) twice a day for 12 weeks were prospectively enrolled in this study. The primary end-point was change in serum alanine aminotransferase (ALT) levels from baseline to week 12. RESULTS Serum ALT levels decreased from 75.1 IU/L at baseline to 43.6 IU/L at week 12 (P = 0.001). Significant improvements in triglyceride, high-density lipoprotein cholesterol, total fatty acid, saturated fatty acid (SFA), and unsaturated fatty acid were also noted. The serum level of remnant-like protein cholesterol, SFA, and polyunsaturated / saturated fatty acid ratio (PUFA / SFA ratio) at baseline were correlated with change in ALT level (r = -0.53, r = -0.57, and r = 0.46, respectively). Change in PUFA and change in PUFA / SFA ratio were negatively correlated with change in ALT level (r = -0.49 and r = -0.53). No hepatic or renal adverse events were reported. CONCLUSIONS Selective peroxisome proliferator activated receptor α could be a promising novel agent for treatment of NAFLD patients with DL by regulating fatty acid composition. A further long-term large-scale trial is warranted to confirm the efficacy of SPPARMα on NAFLD with DL.
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Affiliation(s)
- Yuya Seko
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kanji Yamaguchi
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Atsushi Umemura
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kota Yano
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Aya Takahashi
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shinya Okishio
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Seita Kataoka
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Keiichiroh Okuda
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Michihisa Moriguchi
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takeshi Okanoue
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Osaka, Japan
| | - Yoshito Itoh
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Okishio S, Yamaguchi K, Ishiba H, Tochiki N, Yano K, Takahashi A, Kataoka S, Okuda K, Seko Y, Liu Y, Fujii H, Takahashi D, Ito Y, Kamon J, Umemura A, Moriguchi M, Yasui K, Okanoue T, Itoh Y. PPARα agonist and metformin co-treatment ameliorates NASH in mice induced by a choline-deficient, amino acid-defined diet with 45% fat. Sci Rep 2020; 10:19578. [PMID: 33177546 PMCID: PMC7658250 DOI: 10.1038/s41598-020-75805-z] [Citation(s) in RCA: 2] [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: 05/22/2020] [Accepted: 10/13/2020] [Indexed: 02/06/2023] Open
Abstract
We explored the beneficial effects of GW7647, a peroxisome proliferator activated receptor α (PPARα) agonist, and metformin, an anti-diabetic drug on an advanced nonalcoholic steatohepatitis (NASH) model in rodents and investigated the possible mechanisms involved. Mice were fed control chow or a choline-deficient l-amino acid-defined diet containing 45% fat (HF-CDAA). The mice fed HF-CDAA diets for 16 weeks were divided into four groups: the no treatment (HF-CDAA), HF-CDAA containing 1000 mg/kg metformin, HF-CDAA containing 10 mg/kg GW7647, and HF-CDAA with both metformin and GW7647 groups. Metformin alone slightly deteriorated the aspartate and alanine aminotransferase (AST/ALT) values, whereas co-treatment with GW7647 and metformin greatly suppressed liver injury and fibrosis via activation of the AMP-activated protein kinase (AMPK) pathway. Further study revealed that co-treatment decreased the expression of inflammatory-, fibrogenesis-, and endoplasmic reticulum (ER) stress-related genes and increased the oxidized nicotinamide adenine dinucleotide (NAD)/reduced nicotinamide adenine dinucleotide (NADH) ratio, suggesting the superiority of co-treatment due to restoration of mitochondrial function. The additive benefits of a PPARα agonist and metformin in a HF-CDAA diet-induced advanced NASH model was firstly demonstrated, possibly through restoration of mitochondrial function and AMPK activation, which finally resulted in suppression of hepatic inflammation, ER stress, then, fibrosis.
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Affiliation(s)
- Shinya Okishio
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Kanji Yamaguchi
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan.
| | - Hiroshi Ishiba
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Nozomi Tochiki
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Kota Yano
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Aya Takahashi
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Seita Kataoka
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Keiichiroh Okuda
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Yuya Seko
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Yu Liu
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Hideki Fujii
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Daiki Takahashi
- Pharmaceutical Research Department, Biological Research Laboratories, Nissan Chemical Corporation, Saitama, Japan
| | - Yusuke Ito
- Pharmaceutical Research Department, Biological Research Laboratories, Nissan Chemical Corporation, Saitama, Japan
| | - Junji Kamon
- Pharmaceutical Research Department, Biological Research Laboratories, Nissan Chemical Corporation, Saitama, Japan
| | - Atsushi Umemura
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Michihisa Moriguchi
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Kohichiroh Yasui
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Takeshi Okanoue
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Osaka, Japan
| | - Yoshito Itoh
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
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Seko Y, Yamaguchi K, Tochiki N, Yano K, Takahashi A, Okishio S, Kataoka S, Okuda K, Umemura A, Moriguchi M, Tanaka S, Mori K, Okanoue T, Itoh Y. Attenuated effect of PNPLA3 on hepatic fibrosis by HSD17B13 in Japanese patients with non-alcoholic fatty liver disease. Liver Int 2020; 40:1686-1692. [PMID: 32342668 DOI: 10.1111/liv.14495] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [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: 03/22/2020] [Revised: 04/16/2020] [Accepted: 04/22/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND & AIMS PNPLA3 rs738409 has been associated with increased risks of fibrosis in patients with non-alcoholic fatty liver disease (NAFLD). Recently, carriage of the rs6834314 G allele, which is in high linkage with rs72613567 of 17-beta-hydroxysteroid dehydrogenase 13 (HSD17B13), was reported to be associated with a reduced risk of liver injury in NAFLD patients. We estimated the impact of these genetic variants on hepatic fibrosis in Japanese patients with NAFLD. METHODS We analysed the associations of these genetic variants with liver histology in 290 Japanese patients with biopsy-proven NAFLD diagnosed during 2002-2019. During follow-up, 14 patients (4.8%) developed hepatocellular carcinoma. RESULTS Prevalences of the PNPLA3 rs738409 genotypes were 0.17 for CC, 0.41 for CG, 0.42 for GG, and those for HSD17B13 rs6834314 were 0.54 for AA, 0.39 for AG and 0.07 for GG. There was no significant interaction between the PNPLA3 and HSD17B13 genotypes. Prevalences of advanced fibrosis according to PNPLA3/HSD17B13 genotypes were 0.16 for CC,CG/AG,GG, 0.20 for CC,CG/AA, 0.30 for GG/AG,GG and 0.37 for GG/AA. Multivariate analysis identified PNPLA3 GG as a predictor of advanced fibrosis (stage 3/4) in carriers of HSD17B13 AA (odds ratio 2.4, P = .041), but not HSD17B13 AG/GG (P = .776). The HSD17B13 genotype G was significantly associated with lower prevalences of severe inflammation and ballooning and tended to be associated with a higher prevalence of advanced steatosis. CONCLUSIONS In Japanese patients with NAFLD, carriage of the HSD17B13 rs6834314 G allele attenuated the effect of the PNPLA3 rs738409 GG genotype on advanced hepatic fibrosis.
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Affiliation(s)
- Yuya Seko
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kanji Yamaguchi
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Nozomi Tochiki
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kota Yano
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Aya Takahashi
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shinya Okishio
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Seita Kataoka
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Keiichiroh Okuda
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Atsushi Umemura
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Michihisa Moriguchi
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Saiyu Tanaka
- Center for Digestive and Liver Diseases, Nara City Hospital, Nara, Japan
| | - Kojiroh Mori
- Center for Digestive and Liver Diseases, Nara City Hospital, Nara, Japan
| | - Takeshi Okanoue
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Osaka, Japan
| | - Yoshito Itoh
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Seko Y, Moriguchi M, Takahashi A, Okishio S, Kataoka S, Okuda K, Mizuno N, Takemura M, Taketani H, Umemura A, Nishikawa T, Yamaguchi K, Itoh Y. The Association between the Platelet Count and Liver Volume in Compensated Cirrhosis Patients after the Eradication of Hepatitis C virus by Direct-acting Antivirals. Intern Med 2020; 59:1811-1817. [PMID: 32741890 PMCID: PMC7474995 DOI: 10.2169/internalmedicine.4442-20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Objective Although most patients who obtain a sustained virological response (SVR) show an improved liver function, some show decreased platelet counts after the eradication of hepatitis C virus (HCV). The aim of this retrospective study was to clarify the association of the liver and spleen volumes with the platelet count after SVR achieved by direct-acting antiviral (DAA) treatment. Methods This study enrolled 36 consecutive patients treated by DAAs who obtained an SVR between September 2014 and December 2018. The liver and spleen volumes were derived from computed tomography scans obtained at pretreatment, SVR, and 48 weeks after SVR. No patient developed hepatocellular carcinoma during this study. Results Compared with pretreatment, the median aspartate aminotransferase, alanine aminotransferase, albumin serum levels, and platelet counts were significantly improved at SVR and 48 weeks after SVR. The liver/spleen volumes per body weight had decreased significantly from 22.5/4.2 mL/kg at baseline to 21.1/3.6 mL/kg at 48 weeks after SVR. The change in the liver volume was associated with the change in the platelet count, and the change in the spleen volume was negatively associated with the change in the serum albumin level. A multivariate analysis identified the change in the liver volume (≥95%, odds ratio 76.9, p=0.005) as the factor associated with improvement in the platelet count at 48 weeks after SVR. The patients with an increased liver volume at 48 weeks after SVR showed an increased platelet count. Conclusion Both the liver and spleen volume decreased significantly after the eradication of HCV. The patients with a re-increased liver volume showed a rapid increase in the platelet count.
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Affiliation(s)
- Yuya Seko
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Japan
| | - Michihisa Moriguchi
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Japan
| | - Aya Takahashi
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Japan
| | - Shinya Okishio
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Japan
| | - Seita Kataoka
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Japan
| | - Keiichiroh Okuda
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Japan
| | - Naoki Mizuno
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Japan
| | - Masashi Takemura
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Japan
| | - Hiroyoshi Taketani
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Japan
| | - Atsushi Umemura
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Japan
| | - Taichiro Nishikawa
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Japan
| | - Kanji Yamaguchi
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Japan
| | - Yoshito Itoh
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Japan
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Seko Y, Yano K, Takahashi A, Okishio S, Kataoka S, Okuda K, Mizuno N, Takemura M, Taketani H, Umemura A, Nishikawa T, Yamaguchi K, Moriguchi M, Okanoue T, Itoh Y. FIB-4 Index and Diabetes Mellitus Are Associated with Chronic Kidney Disease in Japanese Patients with Non-Alcoholic Fatty Liver Disease. Int J Mol Sci 2019; 21:ijms21010171. [PMID: 31881781 PMCID: PMC6981476 DOI: 10.3390/ijms21010171] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 12/21/2019] [Accepted: 12/24/2019] [Indexed: 12/21/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is associated with chronic kidney disease (CKD). The aim of this retrospective study was to determine the risk factors for progression of CKD in patients with biopsy-proven NAFLD including patatin-like phospholipase domain containing 3 (PNPLA3) polymorphism. A total of 344 patients with biopsy-proven NAFLD were enrolled consecutively in this study. Multivariate analysis identified males (odds ratio (OR) 5.46), age (per 1 year, OR 1.07), and FIB-4 index (≥1.30, OR 3.85) as factors associated with CKD. Of the 154 patients with a baseline estimated glomerular filtration rate (eGFR) ≥60 mL/min, 30 had a deterioration in CKD stage and 15 developed CKD after 3 years. Multivariate analysis identified diabetes mellitus (OR 2.44) as a risk factor for deterioration in CKD stage, while diabetes mellitus (OR 21.54) and baseline eGFR (per 1 mL/min OR 0.88) were risk factors for development of CKD. PNPLA3 did not affect the change in eGFR. In NAFLD patients, a high FIB-4 index was associated with CKD to increases in the index linked to reductions in eGFR. In order to prevent development of CKD, an appropriate therapy focusing on renal function is needed for NAFLD patients, especially those with diabetes.
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Affiliation(s)
- Yuya Seko
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto 6028566, Japan
- Correspondence: ; Tel.: +81-75-251-5519
| | - Kohta Yano
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto 6028566, Japan
| | - Aya Takahashi
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto 6028566, Japan
| | - Shinya Okishio
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto 6028566, Japan
| | - Seita Kataoka
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto 6028566, Japan
| | - Keiichiroh Okuda
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto 6028566, Japan
| | - Naoki Mizuno
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto 6028566, Japan
| | - Masashi Takemura
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto 6028566, Japan
| | - Hiroyoshi Taketani
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto 6028566, Japan
| | - Atsushi Umemura
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto 6028566, Japan
| | - Taichiro Nishikawa
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto 6028566, Japan
| | - Kanji Yamaguchi
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto 6028566, Japan
| | - Michihisa Moriguchi
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto 6028566, Japan
| | - Takeshi Okanoue
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Osaka 5640013, Japan
| | - Yoshito Itoh
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto 6028566, Japan
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Sakane T, Okuda K, Yokota K, Tatematsu T, Endo K, Nakanishi R. EP1.15-07 A Mutational Analysis of Epidermal Growth Factor Receptor Pathway Genes in Thymic Carcinoma. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2342] [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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15
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Tomita N, Okuda K, Oosaga S, Miyakawa A, Nakanishi R, Shibamoto Y. Stereotactic Body Radiotherapy Versus Surgery for Patients with Stage I Non-Small-Cell Lung Cancer: Comparison of Long-Term Outcome with a Propensity Score Matching Analysis. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.145] [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: 11/24/2022]
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Szóstek-Mioduchowska AZ, Baclawska A, Okuda K, Skarzynski DJ. Effect of proinflammatory cytokines on endometrial collagen and metallopeptidase expression during the course of equine endometrosis. Cytokine 2019; 123:154767. [PMID: 31265984 DOI: 10.1016/j.cyto.2019.154767] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [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: 12/20/2018] [Revised: 06/06/2019] [Accepted: 06/25/2019] [Indexed: 01/04/2023]
Abstract
Equine endometrosis (endometrial fibrosis) is a degenerative chronic process that occurs in the uterus of the mare and disturbs proper endometrial function. Fibrosis is attributed to excessive deposition of extracellular matrix (ECM) components. The turnover of ECM is mediated by matrix metallopeptidases (MMP). Previously, it was shown that cytokines modulate MMP expression in other tissues and may regulate fibrosis indirectly by attracting inflammatory cells to the site of inflammation and directly on various tissues. However, the regulation of MMP expression in equine endometrosis is still relatively unknown. Thus, our aim was to determine if interleukin (IL)-1β and IL-6 regulate ECM, MMPs, or their inhibitors (TIMPs) and whether this regulation differs during endometrosis in the mare. Endometrial fibrosis was divided into four categories according to severity: I (no degenerative changes), IIA (mild degenerative changes), IIB (moderate degenerative changes) and III (severe degenerative changes) according to Kenney and Doig classification. Endometrial explants (n = 5 for category I, IIA, IIB and III according to Kenney and Doig) were incubated with IL-1β (10 ng/ml) or IL-6 (10 ng/ml) for 24 h. Secretion and mRNA transcription of collagen type 1 (Col1a1) and type 3 (Col3a1), fibronectin (Fn1), Mmp-1, -2, -3, -9, -13, Timp-1, -2 were analyzed by real-time PCR and ELISA, respectively. IL-1β treatment up-regulated secretion of COL1, MMP-2, TIMP1, and TIMP2 in category I endometrial fibrosis tissues (P < 0.05). IL-6 treatment up-regulated secretion of ECM, MMP-2, and MMP-3 and down-regulated secretion of MMP-9 in category I tissues (P < 0.05). In category IIA tissues, IL-1β and IL-6 treatment up-regulated secretion of COL3 (P < 0.05; P < 0.05), and IL-6 treatment also down-regulated secretion of MMP-9 (P < 0.05). In category IIB tissues, IL-1β treatment down-regulated secretion of COL3 (P < 0.05) and up-regulated secretion of MMP-3 (P < 0.01), while IL-6 treatment up-regulated secretion of MMP-3, MMP-9, and MMP-13 (P < 0.05). In category III tissues, IL-1β treatment up-regulated secretion of COL1, MMP-1, MMP-9 and TIMP-2 (P < 0.05), and IL-6 up-regulated secretion of all investigated ECM components, MMPs and TIMPs. These results reveal that the effect of IL-1β and IL-6 on equine endometrium differs depending on the severity of endometrial fibrosis. Our findings indicate an association between inflammation and development of endometrosis through the effect of IL-1β and IL-6 on expression of ECM components, MMPs, and TIMPs in the mare.
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Affiliation(s)
- A Z Szóstek-Mioduchowska
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748 Olsztyn, Poland.
| | - A Baclawska
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748 Olsztyn, Poland
| | - K Okuda
- Laboratory of Reproductive Physiology Graduate School of Environmental and Science, Okayama University, 700-8530 Okayama, Japan; Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan
| | - D J Skarzynski
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748 Olsztyn, Poland
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Okuda K, Nakajima K, Saito H, Ito T, Kikuchi A, Yoneyama H, Shibutani T, Onoguchi M, Matsuo S, Hashimoto M, Kinuya S. P126Texture analysis of myocardial perfusion SPECT with a digital cardiac phantom. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez147.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- K Okuda
- Kanazawa Medical University, Physics, Ishikawa, Japan
| | - K Nakajima
- Kanazawa University Hospital, Nuclear Medicine, Kanazawa, Japan
| | - H Saito
- Kanazawa Medical University, Ishikawa, Japan
| | - T Ito
- Saiseikai Yokohamashi Tobu Hospital, Radiology, Yokohama, Japan
| | - A Kikuchi
- Hokkaido University of Science, Radiological Technology, Sapporo, Japan
| | - H Yoneyama
- Kanazawa University Hospital, Radiological Technology, Kanazawa, Japan
| | - T Shibutani
- Kanazawa University, Quantum Medical Technology, Kanazawa, Japan
| | - M Onoguchi
- Kanazawa University, Quantum Medical Technology, Kanazawa, Japan
| | - S Matsuo
- Kanazawa University Hospital, Nuclear Medicine, Kanazawa, Japan
| | - M Hashimoto
- Kanazawa Medical University, Physics, Ishikawa, Japan
| | - S Kinuya
- Kanazawa University Hospital, Nuclear Medicine, Kanazawa, Japan
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18
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Seko Y, Mizuno N, Okishio S, Takahashi A, Kataoka S, Okuda K, Furuta M, Takemura M, Taketani H, Umemura A, Nishikawa T, Yamaguchi K, Moriguchi M, Itoh Y. Clinical and pathological features of sarcopenia-related indices in patients with non-alcoholic fatty liver disease. Hepatol Res 2019; 49:627-636. [PMID: 30716793 DOI: 10.1111/hepr.13321] [Citation(s) in RCA: 10] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 01/17/2019] [Accepted: 01/29/2019] [Indexed: 12/16/2022]
Abstract
BACKGROUND Sarcopenia is diagnosed with the skeletal muscle index (SMI) or the sarcopenia index (SI). We previously reported that the ratio of skeletal muscle mass to body fat mass (SF ratio) was a novel index of sarcopenia in patients with non-alcoholic fatty liver disease (NAFLD). The aim of this retrospective study was to evaluate sarcopenia with these indices in patients with NAFLD. METHODS One hundred and fifty-six consecutive patients with biopsy-proven NAFLD and alanine aminotransferase (ALT) >40 IU/L were enrolled. Liver function and body composition were evaluated in 121 patients after 12 months. We evaluated the relationship between histological findings, changes in liver function, and the SMI, SI, and SF ratio. RESULTS Of the 156 patients enrolled, 13.5% and 26.3% were diagnosed with sarcopenia with the SMI and SI. In patients with hepatic fibrosis stage <2, the SI and the SF ratio were significantly greater than in patients with fibrosis stage ≥2. There was no difference in SMI between groups. In the cohort assessed at baseline and 12 months later, transaminase activity and SMI decreased significantly, and the SF ratio increased over time. A multivariate analysis revealed the presence of the PNPLA3 G allele and an increase in SF ratio (odds ratio, 7.406) as predictive factors of ALT reduction >30% from baseline. CONCLUSIONS Due to the high prevalence of obesity, we should consider both skeletal muscle mass and body fat mass in the diagnosis and treatment of NAFLD. The SF ratio could be a useful index in sarcopenic NAFLD.
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Affiliation(s)
- Yuya Seko
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto
| | - Naoki Mizuno
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto
| | - Shinya Okishio
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto
| | - Aya Takahashi
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto
| | - Seita Kataoka
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto
| | - Keiichiroh Okuda
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto
| | - Mitsuhiro Furuta
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto
| | - Masashi Takemura
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto
| | - Hiroyoshi Taketani
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto
| | - Atsushi Umemura
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto
| | - Taichiro Nishikawa
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto
| | - Kanji Yamaguchi
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto
| | - Michihisa Moriguchi
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto
| | - Yoshito Itoh
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto
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Kira S, Shiihara K, Okuda K. Postoperative changes in serum creatine kinase in paediatric orthopaedic patients with preoperative hyperCKaemia: review of three cases. South Afr J Anaesth Analg 2019. [DOI: 10.36303/sajaa.2019.25.3.2187] [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: 11/05/2022]
Abstract
An elevated serum creatine kinase (CK) level is commonly known as hyperCKaemia, and anaesthesiologists must take into account the potential susceptibility of hyperCKaemia patients to develop malignant hyperthermia during general anaesthesia as well as acute onset of rhabdomyolysis postoperatively. Three paediatric patients with hyperCKaemia were scheduled for orthopaedic surgery. With the consent of their parents, their CK changes were monitored for seven days postoperatively to detect rhabdomyolysis. The results showed that the postoperative CK change patterns were almost the same as those for patients whose CK levels were within reference range. Maximum CK levels tended to be higher in these patients than in the CK reference-range patients studied previously, although the reason remains unclear. This experience and previous studies suggest that measuring CK levels at least on postoperative days 1 and 2 might be better for detecting early signs of rhabdomyolysis, even in paediatric patients with hyperCKaemia.
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Affiliation(s)
- S Kira
- Beppu Developmental Medicine & Rehabilitation Center
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20
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Seko Y, Moriguchi M, Hara T, Kataoka S, Okuda K, Furuta M, Takemura M, Taketani H, Umemura A, Nishikawa T, Yamaguchi K, Yasui K, Minami M, Itoh Y. Presence of varices in patients after hepatitis C virus eradication predicts deterioration in the FIB-4 index. Hepatol Res 2019; 49:473-478. [PMID: 30549372 DOI: 10.1111/hepr.13296] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 10/24/2018] [Revised: 11/27/2018] [Accepted: 12/11/2018] [Indexed: 02/08/2023]
Abstract
AIMS The liver function of patients with hepatitis C virus (HCV) infection who obtained sustained virologic response (SVR) has been known to improve after HCV eradication. However, a predictor of liver function after SVR has not been definitively identified. The aim of this retrospective study was to identify a predictor of deteriorated liver function and Fibrosis-4 (FIB-4) index after SVR was achieved by direct-acting antiviral (DAA) treatment. METHODS This study retrospectively enrolled 248 patients who obtained SVR by DAA treatment. None of the patients developed hepatocellular carcinoma during this study. Liver function was assessed at the end of treatment (EOT) and at 24, 48, 72, and 96 weeks after EOT. RESULTS At 96 weeks after EOT, the serum aspartate aminotransferase and alanine aminotransferase levels were significantly decreased from those at EOT. The platelet count was significantly increased from 14.9 × 104 /μL at EOT to 17.1 × 104 /μL at 96 weeks after EOT. Ten patients showed an increased FIB-4 (>1.00) index. Multivariate analysis with 171 patients who underwent endoscopic assessment revealed that the presence of varices was an independent predictor of deterioration in the FIB-4 index (odds ratio, 5.56; P = 0.041). CONCLUSION Most of the study patients who obtained SVR showed improved liver function after EOT. Patients without increasing platelet counts after SVR due to DAA therapy should be evaluated for complications induced by portal hypertension.
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Affiliation(s)
- Yuya Seko
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Michihisa Moriguchi
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tasuku Hara
- Department of Gastroenterology, Fukuchiyama City Hospital, Fukuchiyama, Japan
| | - Seita Kataoka
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Keiichiroh Okuda
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Mitsuhiro Furuta
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Masashi Takemura
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroyoshi Taketani
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Atsushi Umemura
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Taichiro Nishikawa
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kanji Yamaguchi
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kohichiroh Yasui
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Masahito Minami
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yoshito Itoh
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Mizuno N, Seko Y, Kataoka S, Okuda K, Furuta M, Takemura M, Taketani H, Hara T, Umemura A, Nishikawa T, Yamaguchi K, Moriguchi M, Itoh Y. Increase in the skeletal muscle mass to body fat mass ratio predicts the decline in transaminase in patients with nonalcoholic fatty liver disease. J Gastroenterol 2019; 54:160-170. [PMID: 29948305 DOI: 10.1007/s00535-018-1485-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 04/24/2018] [Accepted: 06/11/2018] [Indexed: 02/04/2023]
Abstract
BACKGROUND The aim of this retrospective study was to determine the effect of skeletal muscle and body fat on liver function in patients with nonalcoholic fatty liver disease (NAFLD) diagnosed by liver biopsy. METHODS Among the 219 patients with NAFLD enrolled in this study was a cohort of 139 patients who had their body composition measured with Inbody720 at baseline and at ≥ 1 year postbaseline, to elucidate the relationship between liver function and changes in skeletal muscle and body fat mass. Multivariate analysis was used to identify factors influencing low skeletal muscle mass index (SMI, defined as 7 kg/m2 in men, and 5.7 kg/m2 in women) and the skeletal muscle mass to body fat mass ratio (SF ratio). RESULTS Of the 219 patients enrolled, 27 (12.3%) had a low SMI. Patient age (> 70 years) and female gender were identified as risk factors for low SMI. Hepatic fibrosis was not associated with SMI. In the cohort followed up at baseline and 12 months later, transaminase activity, body fat mass, and SMI significantly decreased over time. Changes in the SF ratio were significantly associated with changes in liver function. An increase in the SF ratio [hazard ratio (HR) 10.99 in men, 6.849 in women] was a predictor of reduced ALT, independent of age and other backgrounds. CONCLUSIONS In the patients with NAFLD, SMI was decreased, even in the early stages of NAFLD. Therapeutic strategies for NAFLD require a reduction in body fat mass and the maintenance of skeletal muscle is also needed.
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Affiliation(s)
- Naoki Mizuno
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Yuya Seko
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan.
| | - Seita Kataoka
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Keiichiroh Okuda
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Mitsuhiro Furuta
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Masashi Takemura
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Hiroyoshi Taketani
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Tasuku Hara
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Atsushi Umemura
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Taichiro Nishikawa
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Kanji Yamaguchi
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Michihisa Moriguchi
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Yoshito Itoh
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
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Takatani J, Takeshima N, Okuda K, Uchino T, Hagiwara S, Noguchi T. Enhanced Needle Visualization: Advantages and Indications of an Ultrasound Software Package. Anaesth Intensive Care 2019; 40:856-60. [DOI: 10.1177/0310057x1204000514] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- J. Takatani
- Department of Anesthesiology and Intensive Care Medicine, Oita University, Yufu-city, Oita, Japan
| | - N. Takeshima
- Department of Anesthesiology and Intensive Care Medicine, Oita University, Yufu-city, Oita, Japan
| | - K. Okuda
- Department of Anesthesiology and Intensive Care Medicine, Oita University, Yufu-city, Oita, Japan
| | - T. Uchino
- Department of Anesthesiology and Intensive Care Medicine, Oita University, Yufu-city, Oita, Japan
| | - S. Hagiwara
- Department of Anesthesiology and Intensive Care Medicine, Oita University, Yufu-city, Oita, Japan
| | - T. Noguchi
- Department of Anesthesiology and Intensive Care Medicine, Oita University, Yufu-city, Oita, Japan
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Oda R, Okuda K, Watanabe T, Sakane T, Tatematsu T, Yokota K, Haneda H, Nakanishi R. P3.16-37 Comparison of Long-Term Outcomes Between VATS and Open Lobectomies for Stage I NSCLC: Propensity Score-Matching Analysis. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1944] [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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Sakane T, Haneda H, Okuda K, Yokota K, Tatematsu T, Oda R, Watanabe T, Saito Y, Yamada T, Nakanishi R. OA11.04 A Comparative Study of PD-L1 Immunohistochemical Assays with Four Reliable Antibodies in Thymic Carcinoma. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.296] [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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Nishikawa S, Kondo N, Endo Y, Hato Y, Hisada T, Nishimoto M, Dong Y, Okuda K, Kato H, Takahashi S, Nakanishi R, Toyama T. Abstract P3-08-11: The prognostic impact of retinoic acid-induced 2 (RAI2) expression in ERα-positive breast cancer patients. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p3-08-11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Breast cancer cells disseminate to the bone marrow and form bone metastases in a large majority of late-stage patients. Retinoic Acid-Induced 2 (RAI2) was reported as a putative suppressor of early hematogenous dissemination of tumor cells to the bone marrow in breast cancer, particularly in estrogen receptor α (ERα)-positive breast cancer. Here, we investigated mRNA expression of RAI-2 in breast cancer patients during long-term follow-up.
Materials and methods: A total of 451 invasive breast cancer tissues was available for analysis of RAI2 mRNA using a TaqMan PCR system. We also sought correlations between clinicopathological factors and levels of RAI2 expression in these samples. The expression of markers associated with tumor-initiating capacity, such as SNAI1, SNAI2 and VIM was also analyzed. The median follow-up period was 9.0 years. Survival curves were analyzed using the Kaplan-Meier method. Cox proportional hazards regression analysis was used for univariate and multivariate analyses of prognostic values.
Results: We found positive correlations between low expression of RAI2 mRNA and shorter disease-free survival and overall survival in breast cancer patients (P=0.003, P<0.0001, respectively), which was limited to ERα-positive patients (P=0.04, P=0.0009, respectively), and not seen in ERα-negative patients (P=0.52, P=0.27, respectively). Low RAI2 mRNA levels were positively correlated with high grade, ERα-negativity and PgR negativity. Multivariate analysis indicated that low level RAI2 mRNA expression was an independent factor for survival both overall in breast cancer and in ERα-positive breast cancer patients
Multivariate analysis (ERα-positive breast cancer patients) OS Multivariate patientsp valueHR(95%CI)Tumor size≤2cm1390.83691 (Reference) >2cm207 1.08(0.54-2.28)Node statusNegative176<0.00011 (Reference) Positive144 4.72(2.33-10.34)Grade11240.95921 (Reference) 2•3218 0.98(0.50-2.14)RAI2 mRNA expressionhigh140<0.00011 (Reference) middle•low206 4.79(2.14-12.78)
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Conclusion:We show that low expression of RAI2 is an independent factor predictive of a poor prognosis in ERα-positive breast cancer patients. RAI2 could be a promising candidate biomarker and therapeutic target in ERα-positive breast cancer to prevent dissemination to the bone marrow.
Citation Format: Nishikawa S, Kondo N, Endo Y, Hato Y, Hisada T, Nishimoto M, Dong Y, Okuda K, Kato H, Takahashi S, Nakanishi R, Toyama T. The prognostic impact of retinoic acid-induced 2 (RAI2) expression in ERα-positive breast cancer patients [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P3-08-11.
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Affiliation(s)
- S Nishikawa
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Immunology and Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - N Kondo
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Immunology and Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Y Endo
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Immunology and Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Y Hato
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Immunology and Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - T Hisada
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Immunology and Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - M Nishimoto
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Immunology and Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Y Dong
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Immunology and Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - K Okuda
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Immunology and Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - H Kato
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Immunology and Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - S Takahashi
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Immunology and Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - R Nakanishi
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Immunology and Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - T Toyama
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Immunology and Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
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Nishie T, Kobayashi Y, Kimura K, Okuda K. Acute stimulation of a smooth muscle constrictor by oestradiol-17β via GPER1 in bovine oviducts. Reprod Domest Anim 2017; 53:326-332. [DOI: 10.1111/rda.13108] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 10/01/2017] [Indexed: 02/01/2023]
Affiliation(s)
- T Nishie
- Laboratory of Reproductive Physiology; Graduate School of Environmental and Life Science; Okayama University; Okayama Japan
| | - Y Kobayashi
- Laboratory of Reproductive Physiology; Graduate School of Environmental and Life Science; Okayama University; Okayama Japan
| | - K Kimura
- Laboratory of Reproductive Physiology; Graduate School of Environmental and Life Science; Okayama University; Okayama Japan
| | - K Okuda
- Obihiro University of Agriculture and Veterinary Medicine; Hokkaido Japan
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Sakane T, Moriyama S, Haneda H, Okuda K, Kawano O, Watanabe T, Oda R, Nakanishi R. MA 16.10 Treatment Outcomes of Primary Malignant Germ Cell Tumors of the Mediastinum. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Moriyama S, Haneda H, Okuda K, Kawano O, Sakane T, Oda R, Watanabe T, Yano M, Nakanishi R. P1.17-005 Pure Red Cell Aplasia Associated with Thymoma: A Report of a Single-Center Experience. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1087] [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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Okuda K, Watanabe T, Oda R, Sakane T, Kawano O, Haneda H, Moriyama S, Nakanishi R. P2.17-001 Pulmonary Inflammatory Myofibroblastic Tumor with TPM4-ALK Translocation. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1438] [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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Affiliation(s)
- H Sakai
- Department of Surgery, Kurume University School of Medicine, 67, Asahi-machi, 830-0011 Kurume, Japan.
| | - T Hisaka
- Department of Surgery, Kurume University School of Medicine, 67, Asahi-machi, 830-0011 Kurume, Japan
| | - K Okuda
- Department of Surgery, Kurume University School of Medicine, 67, Asahi-machi, 830-0011 Kurume, Japan
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Shinohara Y, Kato A, Kuya K, Okuda K, Sakamoto M, Kowa H, Ogawa T. Perfusion MR Imaging Using a 3D Pulsed Continuous Arterial Spin-Labeling Method for Acute Cerebral Infarction Classified as Branch Atheromatous Disease Involving the Lenticulostriate Artery Territory. AJNR Am J Neuroradiol 2017; 38:1550-1554. [PMID: 28596191 DOI: 10.3174/ajnr.a5247] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Accepted: 03/27/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND PURPOSE Branch atheromatous disease is a stroke subtype considered a risk factor for early neurologic deterioration. Meanwhile, crossed cerebellar diaschisis is thought to be influenced by the degree and location of supratentorial perfusion abnormalities and is associated with the clinical outcome in the case of an ischemic stroke. In this article, our aim was to clarify the utility of using a whole-brain 3D pulsed continuous arterial spin-labeling method as an imaging biomarker for predicting neurologic severity in branch atheromatous disease. MATERIALS AND METHODS Twenty-three patients with branch atheromatous disease in the lenticulostriate artery territory were enrolled. All patients underwent MR imaging, including DWI, 3D-TOF-MRA, and 3D-arterial spin-labeling. We measured the asymmetry index of CBF in the affected area (branch atheromatous disease), the asymmetry index of the contralateral cerebellar hemisphere (crossed cerebellar diaschisis), and the DWI infarct volume in the lenticulostriate artery territory. We also compared each parameter with the initial NIHSS score with the Pearson correlation coefficient. RESULTS Among the 23 patients, we found no correlation between NIHSS score and the asymmetry index of CBF in the affected area (branch atheromatous disease) (r = -0.027, P = .724), whereas the asymmetry index of the contralateral cerebellar hemisphere (crossed cerebellar diaschisis) and DWI infarct volumes were significantly correlated with NIHSS score (r = 0.515, P = .012; r = 0.664, P = .001, respectively). CONCLUSIONS In patients with branch atheromatous disease, 3D-arterial spin-labeling can detect crossed cerebellar diaschisis, which is correlated with the degree of neurologic severity.
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Affiliation(s)
- Y Shinohara
- From the Division of Radiology (Y.S., A.K., K.K., T.O.), Department of Pathophysiological and Therapeutic Science, Faculty of Medicine
| | - A Kato
- From the Division of Radiology (Y.S., A.K., K.K., T.O.), Department of Pathophysiological and Therapeutic Science, Faculty of Medicine
| | - K Kuya
- From the Division of Radiology (Y.S., A.K., K.K., T.O.), Department of Pathophysiological and Therapeutic Science, Faculty of Medicine
| | - K Okuda
- Division of Clinical Radiology (K.O.)
| | - M Sakamoto
- Division of Neurosurgery (M.S.), Department of Brain and Neurosciences, Faculty of Medicine
| | - H Kowa
- Division of Neurology (H.K.), Department of Brain and Neurosciences, Faculty of Medicine, Tottori University, Yonago, Japan
| | - T Ogawa
- From the Division of Radiology (Y.S., A.K., K.K., T.O.), Department of Pathophysiological and Therapeutic Science, Faculty of Medicine
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Yokota A, Hirai H, Shoji T, Maekawa T, Okuda K. Constitutively active ABL family kinases, TEL/ABL and TEL/ARG, harbor distinct leukemogenic activities in vivo. Leukemia 2017; 31:2742-2751. [PMID: 28386107 DOI: 10.1038/leu.2017.114] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 03/27/2017] [Indexed: 01/10/2023]
Abstract
ABL (ABL1) and ARG (ABL2) are highly homologous to each other in overall domain structure and amino-acid sequence, with the exception of their C termini. As with ABL, translocations that fuse ARG to ETV6/TEL have been identified in patients with leukemia. To assess the in vivo leukemogenic activity of constitutively active ABL and ARG, we generated a bone marrow (BM) transplantation model using the chimeric forms TEL/ABL and TEL/ARG, which have comparable kinase activities. TEL/ABL rapidly induced fatal myeloid leukemia in recipient mice, whereas recipients of TEL/ARG-transduced cells did not develop myeloid leukemia, instead, they succumbed to a long-latency infiltrative mastocytosis that could be adoptively transferred to secondary recipients. Swapping of the C termini of ABL and ARG altered disease latency and phenotypes. In a detailed in vitro study, TEL/ARG strongly promoted mast cell differentiation in response to stem cell factor or interleukin-3, whereas TEL/ABL preferentially induced myeloid differentiation of hematopoietic stem/progenitor cells. These results indicate that ABL and ARG kinase activate distinct differentiation pathways to induce specific diseases in vivo, that is, myeloid leukemia and mastocytosis, respectively. Further elucidation of the differences in their properties should provide important insight into the pathogenic mechanisms of oncogenes of the ABL kinase family.
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Affiliation(s)
- A Yokota
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, Kyoto, Japan
| | - H Hirai
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, Kyoto, Japan
| | - T Shoji
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, Kyoto, Japan
| | - T Maekawa
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, Kyoto, Japan
| | - K Okuda
- Department of Molecular Diagnostics and Therapeutics, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
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Hashiba K, Nio-Kobayashi J, Sano M, Maeda M, Kimura Y, Yamamoto Y, Kimura K, Okuda K. Possible Contribution of Alpha2,6-Sialylation to Luteolysis in Cows by Inhibiting the Luteotropic Effects of Galectin-1. Biol Reprod 2016; 95:17. [DOI: 10.1095/biolreprod.116.140194] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 05/26/2016] [Indexed: 11/01/2022] Open
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Taniguchi Y, Takahashi Y, Toba T, Yamada S, Yokoi K, Kobayashi S, Okajima S, Shimane A, Kawai H, Yasaka Y, Smanio P, Oliveira MA, Machado L, Cestari P, Medeiros E, Fukuzawa S, Okino S, Ikeda A, Maekawa J, Ichikawa S, Kuroiwa N, Yamanaka K, Igarashi A, Inagaki M, Patel K, Mahan M, Ananthasubramaniam K, Mouden M, Yokota S, Ottervanger J, Knollema S, Timmer J, Jager P, Padron K, Peix A, Cabrera L, Pena Bofill V, Valera D, Rodriguez Nande L, Carrillo Hernandez R, Mena Esnard E, Fernandez Columbie Y, Bertella E, Baggiano A, Mushtaq S, Segurini C, Loguercio M, Conte E, Beltrama V, Petulla' M, Andreini D, Pontone G, Guzic Salobir B, Dolenc Novak M, Jug B, Kacjan B, Novak Z, Vrtovec M, Mushtaq S, Pontone G, Bertella E, Conte E, Segurini C, Volpato V, Baggiano A, Formenti A, Pepi M, Andreini D, Ajanovic R, Husic-Selimovic A, Zujovic-Ajanovic A, Mlynarski R, Mlynarska A, Golba K, Sosnowski M, Ameta D, Goyal M, Kumar D, Chandra S, Sethi R, Puri A, Dwivedi SK, Narain VS, Saran RK, Nekolla S, Rischpler C, Nicolosi S, Langwieser N, Dirschinger R, Laugwitz K, Schwaiger M, Goral JL, Napoli J, Forcada P, Zucchiatti N, Damico A, Damico A, Olivieri D, Lavorato M, Dubesarsky E, Montana O, Salgado C, Jimenez-Heffernan A, Ramos-Font C, Lopez-Martin J, Sanchez De Mora E, Lopez-Aguilar R, Manovel A, Martinez A, Rivera F, Soriano E, Maroz-Vadalazhskaya N, Trisvetova E, Vrublevskaya O, Abazid R, Kattea M, Saqqah H, Sayed S, Smettei O, Winther S, Svensson M, Birn H, Jorgensen H, Botker H, Ivarsen P, Bottcher M, Maaniitty T, Stenstrom I, Saraste A, Pikkarainen E, Uusitalo V, Ukkonen H, Kajander S, Bax J, Knuuti J, Choi T, Park H, Lee C, Lee J, Seo Y, Cho Y, Hwang E, Cho D, Sanchez Enrique C, Ferrera C, Olmos C, Jimenez - Ballve A, Perez - Castejon MJ, Fernandez C, Vivas D, Vilacosta I, Nagamachi S, Onizuka H, Nishii R, Mizutani Y, Kitamura K, Lo Presti M, Polizzi V, Pino P, Luzi G, Bellavia D, Fiorilli R, Madeo A, Malouf J, Buffa V, Musumeci F, Rosales S, Puente A, Zafrir N, Shochat T, Mats A, Solodky A, Kornowski R, Lorber A, Boemio A, Pellegrino T, Paolillo S, Piscopo V, Carotenuto R, Russo B, Pellegrino S, De Matteis G, Perrone-Filardi P, Cuocolo A, Piscopo V, Pellegrino T, Boemio A, Carotenuto R, Russo B, Pellegrino S, De Matteis G, Petretta M, Cuocolo A, Amirov N, Ibatullin M, Sadykov A A, Saifullina G, Ruano R, Diego Dominguez M, Rodriguez Gabella T, Diego Nieto A, Diaz Gonzalez L, Garcia-Talavera J, Sanchez Fernandez P, Leen A, Al Younis I, Zandbergen-Harlaar S, Verberne H, Gimelli A, Veltman C, Wolterbeek R, Bax J, Scholte A, Mooney D, Rosenblatt J, Dunn T, Vasaiwala S, Okuda K, Nakajima K, Nystrom K, Edenbrandt L, Matsuo S, Wakabayashi H, Hashimoto M, Kinuya S, Iric-Cupic V, Milanov S, Davidovic G, Zdravkovic V, Ashikaga K, Yoneyama K, Akashi Y, Shugushev Z, Maximkin D, Chepurnoy A, Volkova O, Baranovich V, Faibushevich A, El Tahlawi M, Elmurr A, Alzubaidi S, Sakrana A, Gouda M, El Tahlawi R, Sellem A, Melki S, Elajmi W, Hammami H, Okano M, Kato T, Kimura M, Funasako M, Nakane E, Miyamoto S, Izumi T, Haruna T, Inoko M, Massardo T, Swett E, Fernandez R, Vera V, Zhindon J, Fernandez R, Swett E, Vera V, Zhindon J, Alay R, Massardo T, Ohshima S, Nishio M, Kojima A, Tamai S, Kobayashi T, Murohara T, Burrell S, Van Rosendael A, Van Den Hoogen I, De Graaf M, Roelofs J, Kroft L, Bax J, Scholte A, Rjabceva I, Krumina G, Kalvelis A, Chanakhchyan F, Vakhromeeva M, Kankiya E, Koppes J, Knol R, Wondergem M, Van Der Ploeg T, Van Der Zant F, Lazarenko SV, Bruin VS, Pan XB, Declerck JM, Van Der Zant FM, Knol RJJ, Juarez-Orozco LE, Alexanderson E, Slart R, Tio R, Dierckx R, Zeebregts C, Boersma H, Hillege H, Martinez-Aguilar M, Jordan-Rios A, Christensen TE, Ahtarovski KA, Bang LE, Holmvang L, Soeholm H, Ghotbi AA, Andersson H, Ihlemann N, Kjaer A, Hasbak P, Gulya M, Lishmanov YB, Zavadovskii K, Lebedev D, Stahle M, Hellberg S, Liljenback H, Virta J, Metsala O, Yla-Herttuala S, Saukko P, Knuuti J, Saraste A, Roivainen A, Thackeray J, Wang Y, Bankstahl J, Wollert K, Bengel F, Saushkina Y, Evtushenko V, Minin S, Efimova I, Evtushenko A, Smishlyaev K, Lishmanov Y, Maslov L, Okuda K, Nakajima K, Kirihara Y, Sugino S, Matsuo S, Taki J, Hashimoto M, Kinuya S, Ahmadian A, Berman J, Govender P, Ruberg F, Miller E, Piriou N, Pallardy A, Valette F, Cahouch Z, Mathieu C, Warin-Fresse K, Gueffet J, Serfaty J, Trochu J, Kraeber-Bodere F, Van Dijk J, Mouden M, Ottervanger J, Van Dalen J, Jager P, Zafrir N, Ofrk H, Vaturi M, Shochat T, Hassid Y, Belzer D, Sagie A, Kornowski R, Kaminek M, Metelkova I, Budikova M, Koranda P, Henzlova L, Sovova E, Kincl V, Drozdova A, Jordan M, Shahid F, Teoh Y, Thamen R, Hara N, Onoguchi M, Hojyo O, Kawaguchi Y, Murai M, Udaka F, Matsuzawa Y, Bulugahapitiya DS, Avison M, Martin J, Liu YH, Wu J, Liu C, Sinusas A, Daou D, Sabbah R, Bouladhour H, Coaguila C, Aguade-Bruix S, Pizzi M, Romero-Farina G, Candell-Riera J, Castell-Conesa J, Patchett N, Sverdlov A, Miller E, Daou D, Sabbah R, Bouladhour H, Coaguila C, Smettei O, Abazid R, Boulaamayl El Fatemi S, Sallam L, Snipelisky D, Park J, Ray J, Shapiro B, Kostkiewicz M, Szot W, Holcman K, Lesniak-Sobelga A, Podolec P, Clerc O, Possner M, Liga R, Vontobel J, Mikulicic F, Graeni C, Benz D, Herzog B, Gaemperli O, Kaufmann P. Poster Session 1: Sunday 3 May 2015, 08:30-18:00 * Room: Poster Area. Eur Heart J Cardiovasc Imaging 2015. [DOI: 10.1093/ehjci/jev051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Izumida Y, Okuda K, Roco JMM, Hernández AC. Heat devices in nonlinear irreversible thermodynamics. Phys Rev E Stat Nonlin Soft Matter Phys 2015; 91:052140. [PMID: 26066152 DOI: 10.1103/physreve.91.052140] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Indexed: 06/04/2023]
Abstract
We present results obtained by using nonlinear irreversible models for heat devices. In particular, we focus on the global performance characteristics, the maximum efficiency and the efficiency at maximum power regimes for heat engines, and the maximum coefficient of performance (COP) and the COP at maximum cooling power regimes for refrigerators. We analyze the key role played by the interplay between irreversibilities coming from heat leaks and internal dissipations. We also discuss the relationship between these results and those obtained by different models.
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Affiliation(s)
- Y Izumida
- Department of Information Sciences, Ochanomizu University 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8620, Japan
| | - K Okuda
- Division of Physics, Hokkaido University, Sapporo 060-0810, Japan
| | - J M M Roco
- Departamento de Física Aplicada, and Instituto Universitario de Física Fundamental y Matemáticas (IUFFyM), Universidad de Salamanca, 37008 Salamanca, Spain
| | - A Calvo Hernández
- Departamento de Física Aplicada, and Instituto Universitario de Física Fundamental y Matemáticas (IUFFyM), Universidad de Salamanca, 37008 Salamanca, Spain
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Korzekwa A, Lukasik K, Pilawski W, Piotrowska-Tomala K, Jaroszewski J, Yoshioka S, Okuda K, Skarzynski D. Corrigendum to “Influence of different PGF2α analogues on the secretory function of bovine luteal cells and ovarian artery contractility in vitro” [The Veterinary Journal 199 (2014) 131–137]. Vet J 2015. [DOI: 10.1016/j.tvjl.2015.03.030] [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: 11/30/2022]
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Morihara K, Fukushima J, Okuda K. Primary structure of Pseudomonas aeruginosa elastase. A comparison with thermolysin. Antibiot Chemother (1971) 2015; 42:36-41. [PMID: 2512844 DOI: 10.1159/000417601] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- K Morihara
- Toho Pharmaceutical Ind., Kyoto Res. Lab., Japan
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Yamamoto Y, Kobayashi Y, Yoshimoto Y, Okuda K. 104 EXPRESSION OF ACTIVIN A AS A LOCAL REGULATOR IN THE BOVINE OVIDUCT. Reprod Fertil Dev 2015. [DOI: 10.1071/rdv27n1ab104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Activin (ACV) is known as a local regulator of several reproductive functions including follicular development and implantation in mammals. ACVA is a glycopeptide belonging to the transforming growth factor β superfamily, and is a homodimer of inhibin ßA (INHBA) subunits. Follistatin (FST), an ACV-specific binding protein, inhibits ligand-receptor binding. ACV receptor (ACVR) is a hetero-tetramer consisting of 2 kinds of protein, ACVR1 or ACVR1B and ACVR2A or ACVR2B. The oviduct provides an optimal environment for sperm capacitation, fertilization, and early embryonic development. Previous reports have demonstrated that ACVRs were expressed in bovine oocytes and embryos, and that early embryonic development is facilitated by ACVA in vitro. ACVA produced by the bovine oviduct may affect gametes and embryos as well as oviductal cells as a local regulator in cow. Bovine oviductal samples were classified into 6 stages of the oestrous cycle (day of ovulation; Days 2–3 after ovulation; Days 5–6; Days 8–12; Days 15–17; Days 19–21). We examined (1) protein expression of ACVA and FST in oviductal fluid collected from the ampulla and isthmus, (2) mRNA expression of INHBA and FST in the ampullary and isthmic oviductal tissues during the oestrous cycle, (3) the effects of oestradiol-17β (E2: 0.1, 1, 10 nM) and progesterone (P4: 1, 10, 100 nM) on mRNA expressions of INHBA and FST in cultured oviductal epithelial cells isolated from the ampulla and isthmus, and (4) mRNA expression of ACVRs in tissues and in cultured epithelial and stromal cells. The main findings were as follows: (1) Both ACVA and FST were detected throughout the oestrous cycle in the oviductal fluid of the ampulla and isthmus. (2) INHBA expression was higher in the isthmus than in the ampulla. FST expression in the ampulla was lowest at peri-ovulation, INHBA expression in the isthmus was highest on the day of ovulation and FST in the isthmus during Days 2–6 was highest. Because an increase of ACVA production and a decrease of FST production raise ACVA bioactivity, ACVA seems to be most active at peri-ovulation in both the ampulla and isthmus. (3) In the cultured isthmic oviductal epithelial cells, 10 nM E2 significantly stimulated INHBA expression, but tended to suppress FST expression. Therefore, the bioactivity of ACVA seems to be controlled by E2 during the oestrous cycle in the isthmus. (4) The expression of ACVR1B and ACVR2A was clearly detected in the tissues as well as in cultured epithelial and stromal cells. The overall findings suggest that ACVA secreted into oviductal fluid plays an important role in oviductal functions, including fertilization in the ampulla and sperm motility and viability in the isthmus. It is also suggested that ACVA acts on both epithelial and stromal cells as a local regulator of cellular functions, such as cellular proliferation and secretion in the cow.
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Yoshimoto Y, Yamamoto Y, Kobayashi Y, Woclawek-Potocka I, Sinderewicz E, Okuda K. 105 EFFECT OF LYSOPHOSPHATIDIC ACID ON PROSTAGLANDIN PRODUCTION IN THE BOVINE OVIDUCT. Reprod Fertil Dev 2015. [DOI: 10.1071/rdv27n1ab105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The oviduct is an essential organ for successful pregnancy in mammals. The transport of gametes and early embryos is mainly induced by contraction and relaxation of smooth muscle. The contraction and relaxation of bovine oviductal smooth muscle are induced by prostaglandin (PG) F2α and PGE2, respectively. Lysophosphatidic acid (LPA), a type of phospholipid, is involved in various physiological actions such as promoting inflammation and cellular proliferation in various organs. LPA acts through at least 6 G protein-coupled receptors. Both LPA and LPA receptors are expressed in endometrium and, moreover, LPA affects PG production by the endometrium in cow. Based on the above findings, we hypothesised that LPA is locally involved in PG production by oviductal cells to promote motility of oviductal smooth muscle in cow. Oviductal samples ipsilateral to a corpus luteum or a dominant follicle at peri-ovulation (0–6 and 19–21 days after ovulation) were collected in abattoir. Messenger RNA expression of LPA receptors (LPAR1–6) and LPA-producing enzymes (ATX, PLA1α, PLA1β) was examined in ampullary and isthmic tissues. Expression in cultured epithelial and stromal cells isolated from the bovine oviduct were also examined to determine the cells possessing LPA receptors and LPA-producing enzymes. In addition, the effect of LPA (0.1, 1, 10 μM) on the expression of cyclooxygenase (COX)-1 and COX-2 (PG-synthesising enzymes) and on PGE2 and PGF2α production by cultured epithelial and stromal cells was investigated. The significant differences (P < 0.05) were determined by Student's t-test for 2 groups, and by one-way ANOVA followed by Tukey's multiple comparison test for more than 3 groups. LPAR1–6, ATX, PLA1α, and PLA1β were expressed in both ampullary and isthmic tissues as well as in both cultured epithelial and stromal cells. The expression of LPAR1–3 was significantly lower in the isthmic tissues than in the ampullary tissues, whereas the expression of LPAR4–6 was significantly higher in the isthmic tissues than in the ampullary tissues. The expression of COX-2 was significantly stimulated by 10 μM LPA in cultured isthmic stromal cells. In addition, LPA significantly stimulated both PGE2 and PGF2α production by cultured isthmic stromal cells. In the isthmus of the oviduct, LPA produced by epithelial and stromal cells may stimulate the expression of COX-2 in the stromal cells, followed by increased PG production. Because the mRNA expression of LPAR4–6 is higher in the isthmus than in the ampulla, those effects of LPA might be mediated by activation of LPAR4–6. The overall findings suggest that LPA is one of the regulating factors for transport of gametes and early embryos by controlling the motility of smooth muscle in the bovine oviduct.
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Oda A, Isa K, Ogasawara K, Kameyama K, Okuda K, Hirashima M, Ishii H, Kimura K, Matsukura H, Hirayama F, Kawa K. A novel mutation of the GATA site in the erythroid cell-specific regulatory element of theABOgene in a blood donor with the AmB phenotype. Vox Sang 2014; 108:425-7. [DOI: 10.1111/vox.12229] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 11/09/2014] [Accepted: 11/11/2014] [Indexed: 11/28/2022]
Affiliation(s)
- A. Oda
- Japanese Red Cross; Kinki Block Blood Center; Osaka Japan
| | - K. Isa
- Japanese Red Cross; Central Blood Institute; Tokyo Japan
| | - K. Ogasawara
- Japanese Red Cross; Central Blood Institute; Tokyo Japan
| | - K. Kameyama
- Japanese Red Cross; Kinki Block Blood Center; Osaka Japan
| | - K. Okuda
- Japanese Red Cross; Kinki Block Blood Center; Osaka Japan
| | - M. Hirashima
- Japanese Red Cross; Kinki Block Blood Center; Osaka Japan
| | - H. Ishii
- Japanese Red Cross; Kinki Block Blood Center; Osaka Japan
| | - K. Kimura
- Japanese Red Cross; Kinki Block Blood Center; Osaka Japan
| | - H. Matsukura
- Japanese Red Cross; Kinki Block Blood Center; Osaka Japan
| | - F. Hirayama
- Japanese Red Cross; Kinki Block Blood Center; Osaka Japan
| | - K. Kawa
- Japanese Red Cross; Kinki Block Blood Center; Osaka Japan
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Hirose T, Fujita K, Kusumoto S, Oki Y, Murata Y, Sugiyama T, Ishida H, Shirai T, Nakashima M, Yamaoka T, Okuda K, Ohnishi T, Ohmori T, Sasaki Y, Tamura A, Ohta K. Association of Pharmacokinetics or Pharmacogenomics with Toxicity of Erlotinib in Patients with Recurrent Advanced Non-Small Cell Lung Cancer. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu349.16] [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: 11/12/2022] Open
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Abstract
Abstract
The structure of amorphous Co-ferrite film grown on a glass substrate was studied by anomalous X-ray scattering (AXS). Co atoms cannot be distinguished from Fe atoms with the usual X-ray diffraction technique. Therefore the AXS method at the Fe and Co K-absorption edges was adopted. In the previous AXS studies only the lower energy side of the absorption edges was adopted. In the previous AXS studies only the lower energy side of the absorption edge was used. In the present case, the lower energy side of the Co K-absorption edge corresponds to the higher energy side of the Fe K-absorption edge. Therefore, in order to overcome this inconvenience, the scattering was measured on both sides of the absorption edge, thus enabling the independent determination of the oxygen coordination numbers around Co and Fe in the ferrite film from the environmental RDFs estimated from the energy differential profiles by coupling with the linear least squares technique.
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Affiliation(s)
- E. Matsubara
- Research Institute of Mineral Dressing & Metallurgy (SENKEN), Tohoku University, Sendai, 980 Japan
| | - K. Okuda
- Research Institute of Mineral Dressing & Metallurgy (SENKEN), Tohoku University, Sendai, 980 Japan
| | - Y. Waseda
- Research Institute of Mineral Dressing & Metallurgy (SENKEN), Tohoku University, Sendai, 980 Japan
| | - S. N. Okuno
- Research and Development Center, Toshiba Corporation, Komukai Toshiba-cho, Saiwai-ku, Kawasaki, 210 Japan
| | - K. Inomata
- Research and Development Center, Toshiba Corporation, Komukai Toshiba-cho, Saiwai-ku, Kawasaki, 210 Japan
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Kudo R, Okuda K, Usuki K, Nakano M, Yamamura K, Endo K. Three-dimensional surface figure measurement of high-accuracy spherical mirror with nanoprofiler using normal vector tracing method. Rev Sci Instrum 2014; 85:045101. [PMID: 24784653 DOI: 10.1063/1.4869473] [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: 06/03/2023]
Abstract
Processing technology using an extreme ultraviolet light source, e.g., next-generation lithography, requires next-generation high-accuracy mirrors. As it will be difficult to attain the degree of precision required by next-generation high-accuracy mirrors such as aspherical mirrors through conventional processing methods, rapid progress in nanomeasurement technologies will be needed to produce such mirrors. Because the measuring methods used for the surface figure measurement of next-generation mirrors will require high precision, we have developed a novel nanoprofiler that can measure the figures of high-accuracy mirrors without the use of a reference surface. Because the accuracy of the proposed method is not limited by the accuracy of a reference surface, the measurement of free-form mirrors is expected to be realized. By using an algorithm to process normal vectors and their coordinate values at the measurement point obtained by a nanoprofiler, our measurement method can reconstruct three-dimensional shapes. First, we measured the surface of a concave spherical mirror with a 1000-mm radius of curvature using the proposed method, and the measurement repeatability is evaluated as 0.6 nm. Sub-nanometer repeatability is realized, and an increase in the repeatability would be expected by improving the dynamic stiffness of the nanoprofiler. The uncertainty of the measurement using the present apparatus is estimated to be approximately 10 nm by numerical simulation. Further, the uncertainty of a Fizeau interferometer is also approximately 10 nm. The results obtained using the proposed method are compared with those obtained using a Fizeau interferometer. The resulting profiles are consistent within the range of each uncertainty over the middle portions of the mirror.
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Affiliation(s)
- R Kudo
- Research Center for Ultra-Precision Science and Technology, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - K Okuda
- Department of Precision Science and Technology, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - K Usuki
- Department of Precision Science and Technology, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - M Nakano
- Department of Precision Science and Technology, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - K Yamamura
- Research Center for Ultra-Precision Science and Technology, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - K Endo
- Research Center for Ultra-Precision Science and Technology, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
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Toishi Y, Tsunoda N, Tagami M, Hashimoto H, Kato F, Suzuki T, Nagaoka K, Watanabe G, Tokuyama S, Okuda K, Taya K. Evaluation of the new rapid assay PATHFAST for measuring progesterone in whole blood and serum of mares. J Equine Vet Sci 2014. [DOI: 10.1016/j.jevs.2013.10.098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Nakashima M, Hirose T, Ohki Y, Murata Y, Sugiyama T, Ishida H, Okuda K, Yamaoka T, Ohmori T, Ohnishi T. Clinical Benefit of 2ND EGFR-TKI Retreatment on Overall Survival in Patients with Advanced Non-Small Cell Lung Cancer. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt459.56] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Korzekwa AJ, Lukasik K, Pilawski W, Piotrowska-Tomala KK, Jaroszewski JJ, Yoshioka S, Okuda K, Skarzynski DJ. Influence of prostaglandin F₂α analogues on the secretory function of bovine luteal cells and ovarian arterial contractility in vitro. Vet J 2013; 199:131-7. [PMID: 24268486 DOI: 10.1016/j.tvjl.2013.09.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Revised: 09/15/2013] [Accepted: 09/17/2013] [Indexed: 11/25/2022]
Abstract
Although prostaglandin (PG) F2α analogues are routinely used for oestrus synchronisation in cattle, their effects on the function of the bovine corpus luteum (CL), and on ovarian arterial contractility, may not reflect the physiological effects of endogenous PGF2α. In the first of two related experiments, the effects of different analogues of PGF2α (aPGF2α) on the secretory function and apoptosis of cultured bovine cells of the CL were assessed. Enzymatically-isolated bovine luteal cells (from between days 8 and 12 of the oestrous cycle), were stimulated for 24h with naturally-occurring PGF2α or aPGF2α (dinoprost, cloprostenol or luprostiol). Secretion of progesterone (P4) was determined and cellular [Ca(2+)]i mobilisation, as well as cell viability and apoptosis were measured. Naturally-occurring PGF2α and dinoprost stimulated P4 secretion (P<0.05), whereas cloprostenol and luprostiol did not influence P4 synthesis. The greatest cytotoxic and pro-apoptotic effects were observed in the luprostiol-treated cells, at 37.3% and 202%, respectively (P<0.001). The greatest effect on [Ca(2+)]i mobilisation in luteal cells was observed post-luprostiol treatment (200%; P<0.001). In a second experiment, the influence of naturally-occurring PGF2α and aPGF2α on ovarian arterial contraction in vitro, were examined. No differences in the effects of dinoprost or naturally-occurring PGF2α were found across the studied parameters. The effects of cloprostenol and luprostiol on luteal cell death, in addition to their effects on ovarian arterial contractility, were much greater than those produced by treatment with naturally-occurring PGF2α.
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Affiliation(s)
- A J Korzekwa
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
| | - K Lukasik
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland; Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, 10-718 Olsztyn, Poland; Laboratory of Reproductive Endocrinology, Graduate School of Natural Science and Technology, Okayama University, Tsushima Naka 1-1-1, Okayama 700-8530, Japan
| | - W Pilawski
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
| | - K K Piotrowska-Tomala
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
| | - J J Jaroszewski
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, 10-718 Olsztyn, Poland
| | - S Yoshioka
- Laboratory of Reproductive Endocrinology, Graduate School of Natural Science and Technology, Okayama University, Tsushima Naka 1-1-1, Okayama 700-8530, Japan
| | - K Okuda
- Laboratory of Reproductive Endocrinology, Graduate School of Natural Science and Technology, Okayama University, Tsushima Naka 1-1-1, Okayama 700-8530, Japan
| | - D J Skarzynski
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland.
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Kawai H, Watanabe E, Yamamoto M, Ichikawa T, Harigaya H, Okuda K, Sobue Y, Motoyama S, Sarai M, Ozaki Y. What is the optimal antithrombotic therapy of atrial fibrillation patients after coronary artery stent deployment? Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht307.p546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Matsubara T, Okuda K, Chiba J, Takayama A, Inoue H, Sakurai T, Wakabayashi H, Kaneko A, Sugimoto K, Yamazaki H, Takanashi T, Takasaki Y, Tamura N, Ogasawara M, Inoo M, Onishi I, Kawai S, Nohara R. FRI0207 A phase I/II clinical trial of intra-articular administration of ARG098, an anti-FAS IGM monoclonal antibody, in knee joint synovitis of japanese patients with rheumatoid arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2664] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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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Kawase T, Uematsu K, Nagata M, Okuda K, Burns D, Yoshie H. Biological and biomechanical characterization of highly self-multilayered human periosteal sheets as an osteogenic grafting material. Cytotherapy 2013. [DOI: 10.1016/j.jcyt.2013.01.174] [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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Duong HT, Skarzynski DJ, Piotrowska-Tomala KK, Bah MM, Jankowska K, Warmowski P, Łukasik K, Okuda K, Acosta TJ. Conversion of Cortisone to Cortisol and Prostaglandin F 2αProduction by the Reproductive Tract of Cows at the Late Luteal Stage In Vivo. Reprod Domest Anim 2012; 47:939-45. [DOI: 10.1111/j.1439-0531.2012.01995.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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