1
|
Maruyama T, Matsui S, Kobayashi R, Horii T, Oguri Y, Tsuzuki S, Horie T, Ono K, Hatada I, Sasaki T. Medium-chain triglyceride-specific appetite is regulated by the β-oxidation of medium-chain fatty acids in the liver. Am J Physiol Endocrinol Metab 2024; 326:E735-E746. [PMID: 38597830 DOI: 10.1152/ajpendo.00031.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/28/2024] [Accepted: 03/31/2024] [Indexed: 04/11/2024]
Abstract
Most studies on fat appetite have focused on long-chain triglycerides (LCTs) due to their obesogenic properties. Medium-chain triglycerides (MCTs), conversely, exhibit antiobesogenic effects; however, the regulation of MCT intake remains elusive. Here, we demonstrate that mice can distinguish between MCTs and LCTs, and the specific appetite for MCTs is governed by hepatic β-oxidation. We generated liver-specific medium-chain acyl-CoA dehydrogenase (MCAD)-deficient (MCADL-/-) mice and analyzed their preference for MCT and LCT solutions using glyceryl trioctanoate (C8-TG), glyceryl tridecanoate (C10-TG), corn oil, and lard oil in two-bottle choice tests conducted over 8 days. In addition, we used lick microstructure analyses to evaluate the palatability and appetite for MCT and LCT solutions. Finally, we measured the expression levels of genes associated with fat ingestion (Galanin, Qrfp, and Nmu) in the hypothalamus 2 h after oral gavage of fat. Compared with control mice, MCADL-/- mice exhibited a significantly reduced preference for MCT solutions, with no alteration in the preference for LCTs. Lick analysis revealed that MCADL-/- mice displayed a significantly decreased appetite for MCT solutions only while the palatability of both MCT and LCT solutions remained unaffected. Hypothalamic Galanin expression in control mice was elevated by oral gavage of C8-TG but not by LCTs, and this response was abrogated in MCADL-/- mice. In summary, our data suggest that hepatic β-oxidation is required for MCT-specific appetite but not for LCT-specific appetite. The induction of hypothalamic galanin upon MCT ingestion, dependent on hepatic β-oxidation, could be involved in the regulation of MCT-specific appetite.NEW & NOTEWORTHY Whether and how medium-chain triglyceride (MCT) intake is regulated remains unknown. Here, we showed that mice can discriminate between MCTs and LCTs. Hepatic β-oxidation participates in MCT-specific appetite, and hypothalamic galanin may be one of the factors that regulate MCT intake. Because of the antiobesity effects of MCTs, studying MCT-specific appetite may help combat obesity by promoting the intake of MCTs instead of LCTs.
Collapse
Affiliation(s)
- Tsugunori Maruyama
- Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Sho Matsui
- Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Ryosuke Kobayashi
- Laboratory of Genome Science, Biosignal Genome Resource Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
| | - Takuro Horii
- Laboratory of Genome Science, Biosignal Genome Resource Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
| | - Yasuo Oguri
- Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Satoshi Tsuzuki
- Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Takahiro Horie
- Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Koh Ono
- Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Izuho Hatada
- Laboratory of Genome Science, Biosignal Genome Resource Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
- Viral Vector Core, Gunma University Initiative for Advanced Research, Maebashi, Japan
| | - Tsutomu Sasaki
- Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| |
Collapse
|
2
|
Minami S, Sakai S, Yamamoto T, Takabatake Y, Namba-Hamano T, Takahashi A, Matsuda J, Yonishi H, Nakamura J, Maeda S, Matsui S, Matsui I, Isaka Y. FGF21 and autophagy coordinately counteract kidney disease progression during aging and obesity. Autophagy 2024; 20:489-504. [PMID: 37722816 PMCID: PMC10936614 DOI: 10.1080/15548627.2023.2259282] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 09/11/2023] [Indexed: 09/20/2023] Open
Abstract
Chronic kidney disease (CKD) has reached epidemic proportions worldwide, partly due to the increasing population of elderly and obesity. Macroautophagy/autophagy counteracts CKD progression, whereas autophagy is stagnated owing to lysosomal overburden during aging and obesity, which promotes CKD progression. Therefore, for preventing CKD progression during aging and obesity, it is important to elucidate the compensation mechanisms of autophagy stagnation. We recently showed that FGF21 (fibroblast growth factor 21), which is a prolongevity and metabolic hormone, is induced by autophagy deficiency in kidney proximal tubular epithelial cells (PTECs); however, its pathophysiological role remains uncertain. Here, we investigated the interplay between FGF21 and autophagy and the direct contribution of endogenous FGF21 in the kidney during aging and obesity using PTEC-specific fgf21- and/or atg5-deficient mice at 24 months (aged) or under high-fat diet (obese) conditions. PTEC-specific FGF21 deficiency in young mice increased autophagic flux due to increased demand of autophagy, whereas fgf21-deficient aged or obese mice exacerbated autophagy stagnation due to severer lysosomal overburden caused by aberrant autophagy. FGF21 was robustly induced by autophagy deficiency, and aged or obese PTEC-specific fgf21- and atg5-double deficient mice deteriorated renal histology compared with atg5-deficient mice. Mitochondrial function was severely disturbed concomitant with exacerbated oxidative stress and downregulated TFAM (transcription factor A, mitochondrial) in double-deficient mice. These results indicate that FGF21 is robustly induced by autophagy disturbance and protects against CKD progression during aging and obesity by alleviating autophagy stagnation and maintaining mitochondrial homeostasis, which will pave the way to a novel treatment for CKD.
Collapse
Affiliation(s)
- Satoshi Minami
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Shinsuke Sakai
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Takeshi Yamamoto
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yoshitsugu Takabatake
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Tomoko Namba-Hamano
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Atsushi Takahashi
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Jun Matsuda
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Hiroaki Yonishi
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Jun Nakamura
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Shihomi Maeda
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Sho Matsui
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Isao Matsui
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yoshitaka Isaka
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| |
Collapse
|
3
|
Cui M, Yamano K, Yamamoto K, Yamamoto-Imoto H, Minami S, Yamamoto T, Matsui S, Kaminishi T, Shima T, Ogura M, Tsuchiya M, Nishino K, Layden BT, Kato H, Ogawa H, Oki S, Okada Y, Isaka Y, Kosako H, Matsuda N, Yoshimori T, Nakamura S. HKDC1, a target of TFEB, is essential to maintain both mitochondrial and lysosomal homeostasis, preventing cellular senescence. Proc Natl Acad Sci U S A 2024; 121:e2306454120. [PMID: 38170752 PMCID: PMC10786298 DOI: 10.1073/pnas.2306454120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 11/15/2023] [Indexed: 01/05/2024] Open
Abstract
Mitochondrial and lysosomal functions are intimately linked and are critical for cellular homeostasis, as evidenced by the fact that cellular senescence, aging, and multiple prominent diseases are associated with concomitant dysfunction of both organelles. However, it is not well understood how the two important organelles are regulated. Transcription factor EB (TFEB) is the master regulator of lysosomal function and is also implicated in regulating mitochondrial function; however, the mechanism underlying the maintenance of both organelles remains to be fully elucidated. Here, by comprehensive transcriptome analysis and subsequent chromatin immunoprecipitation-qPCR, we identified hexokinase domain containing 1 (HKDC1), which is known to function in the glycolysis pathway as a direct TFEB target. Moreover, HKDC1 was upregulated in both mitochondrial and lysosomal stress in a TFEB-dependent manner, and its function was critical for the maintenance of both organelles under stress conditions. Mechanistically, the TFEB-HKDC1 axis was essential for PINK1 (PTEN-induced kinase 1)/Parkin-dependent mitophagy via its initial step, PINK1 stabilization. In addition, the functions of HKDC1 and voltage-dependent anion channels, with which HKDC1 interacts, were essential for the clearance of damaged lysosomes and maintaining mitochondria-lysosome contact. Interestingly, HKDC1 regulated mitophagy and lysosomal repair independently of its prospective function in glycolysis. Furthermore, loss function of HKDC1 accelerated DNA damage-induced cellular senescence with the accumulation of hyperfused mitochondria and damaged lysosomes. Our results show that HKDC1, a factor downstream of TFEB, maintains both mitochondrial and lysosomal homeostasis, which is critical to prevent cellular senescence.
Collapse
Affiliation(s)
- Mengying Cui
- Department of Genetics, Graduate School of Medicine, Osaka University, Suita, Osaka565-0871, Japan
| | - Koji Yamano
- Ubiquitin Project, Tokyo Metropolitan Institute of Medical Science, Setagaya, Tokyo156-8506, Japan
- Department of Biomolecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo113-8510, Japan
| | - Kenichi Yamamoto
- Department of Statistical Genetics, Graduate School of Medicine, Osaka University, Suita, Osaka565-0871, Japan
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka565-0871, Japan
| | - Hitomi Yamamoto-Imoto
- Department of Genetics, Graduate School of Medicine, Osaka University, Suita, Osaka565-0871, Japan
| | - Satoshi Minami
- Department of Genetics, Graduate School of Medicine, Osaka University, Suita, Osaka565-0871, Japan
- Department of Nephrology, Graduate School of Medicine, Osaka University, Suita, Osaka565-0871, Japan
| | - Takeshi Yamamoto
- Department of Nephrology, Graduate School of Medicine, Osaka University, Suita, Osaka565-0871, Japan
| | - Sho Matsui
- Department of Nephrology, Graduate School of Medicine, Osaka University, Suita, Osaka565-0871, Japan
| | - Tatsuya Kaminishi
- Department of Genetics, Graduate School of Medicine, Osaka University, Suita, Osaka565-0871, Japan
- Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Osaka565-0871, Japan
| | - Takayuki Shima
- Department of Biochemistry, Nara Medical University, Kashihara, Nara634-8521, Japan
| | - Monami Ogura
- Department of Intracellular Membrane Dynamics, Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka565-0871, Japan
| | - Megumi Tsuchiya
- Laboratory of Nuclear Dynamics Group, Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka565-0871, Japan
| | - Kohei Nishino
- Division of Cell Signaling, Fujii Memorial Institute of Medical Sciences, Institute of Advanced Medical Sciences, Tokushima University, Tokushima770-8503, Japan
| | - Brian T. Layden
- Division of Endocrinology, Diabetes, and Metabolism, University of Illinois Chicago, Chicago, IL60612
- Jesse Brown Veterans Affairs Medical Center, Chicago, IL60612
| | - Hisakazu Kato
- Department of Medical Biochemistry, Graduate School of Medicine/Frontier Bioscience, Osaka University, Suita, Osaka565-0871, Japan
| | - Hidesato Ogawa
- Laboratory of Nuclear Dynamics Group, Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka565-0871, Japan
| | - Shinya Oki
- Department of Drug Discovery Medicine, Graduate School of Medicine, Kyoto University, Kyoto606-8501, Japan
| | - Yukinori Okada
- Department of Statistical Genetics, Graduate School of Medicine, Osaka University, Suita, Osaka565-0871, Japan
- Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Osaka565-0871, Japan
- Laboratory of Statistical Immunology, Immunology Frontier Research Center, World Premier International Research Center (WPI-IFReC), Osaka University, Suita, Osaka565-0871, Japan
| | - Yoshitaka Isaka
- Department of Nephrology, Graduate School of Medicine, Osaka University, Suita, Osaka565-0871, Japan
| | - Hidetaka Kosako
- Division of Cell Signaling, Fujii Memorial Institute of Medical Sciences, Institute of Advanced Medical Sciences, Tokushima University, Tokushima770-8503, Japan
| | - Noriyuki Matsuda
- Ubiquitin Project, Tokyo Metropolitan Institute of Medical Science, Setagaya, Tokyo156-8506, Japan
- Department of Biomolecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo113-8510, Japan
| | - Tamotsu Yoshimori
- Department of Genetics, Graduate School of Medicine, Osaka University, Suita, Osaka565-0871, Japan
- Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Osaka565-0871, Japan
- Department of Intracellular Membrane Dynamics, Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka565-0871, Japan
| | - Shuhei Nakamura
- Department of Biochemistry, Nara Medical University, Kashihara, Nara634-8521, Japan
| |
Collapse
|
4
|
Matsui S, Namba-Hamano T, Maeda S, Nakamura J, Takahashi A, Kaimori JY, Fukae S, Tanaka R, Taniguchi A, Nakazawa S, Yamanaka K, Imamura R, Nonomura N, Isaka Y. A Case Report of a Kidney Transplant Recipient With Organizing Pneumonia After Graft Loss. Transplant Proc 2023:S0041-1345(23)00137-9. [PMID: 37069010 DOI: 10.1016/j.transproceed.2023.03.023] [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] [Received: 02/01/2023] [Accepted: 03/13/2023] [Indexed: 04/19/2023]
Abstract
We present a case of a 68-year-old male patient who underwent ABO-incompatible living kidney transplantation from his wife because of immunoglobulin A nephropathy 13 years ago. Over time, the patient showed a gradual decline in graft function and required reinitiation of hemodialysis because of fluid overload, which led to his admission to our hospital. An arteriovenous fistula was created, and subsequently, hemodialysis therapy was started. Because he had chronic cytomegalovirus retinopathy and thrombotic microangiopathy due to immunosuppressive therapy at admission, mycophenolate mofetil and tacrolimus were discontinued during hemodialysis initiation. Only low-dose prednisolone was continued. One week later, the patient had a fever, and chest computed tomography revealed bilateral pneumonia, which was not improved by antibiotics. The patient was diagnosed with organized pneumonia. After ruling out opportunistic infection, including pneumocystis pneumonia, increased doses of prednisolone resulted in the remission of organizing pneumonia.
Collapse
Affiliation(s)
- Sho Matsui
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Tomoko Namba-Hamano
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan.
| | - Shihomi Maeda
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Jun Nakamura
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Atsushi Takahashi
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Jun-Ya Kaimori
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan; Department of Inter-Organ Communication Research in Kidney Disease, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Shota Fukae
- Department of Urology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Ryo Tanaka
- Department of Urology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Ayumu Taniguchi
- Department of Urology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Shigeaki Nakazawa
- Department of Urology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kazuaki Yamanaka
- Department of Urology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Ryoichi Imamura
- Department of Urology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Norio Nonomura
- Department of Urology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yoshitaka Isaka
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| |
Collapse
|
5
|
Nakamura J, Yamamoto T, Takabatake Y, Namba-Hamano T, Minami S, Takahashi A, Matsuda J, Sakai S, Yonishi H, Maeda S, Matsui S, Matsui I, Hamano T, Takahashi M, Goto M, Izumi Y, Bamba T, Sasai M, Yamamoto M, Matsusaka T, Niimura F, Yanagita M, Nakamura S, Yoshimori T, Ballabio A, Isaka Y. TFEB-mediated lysosomal exocytosis alleviates high-fat diet-induced lipotoxicity in the kidney. JCI Insight 2023; 8:162498. [PMID: 36649084 PMCID: PMC9977505 DOI: 10.1172/jci.insight.162498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 01/13/2023] [Indexed: 01/18/2023] Open
Abstract
Obesity is a major risk factor for end-stage kidney disease. We previously found that lysosomal dysfunction and impaired autophagic flux contribute to lipotoxicity in obesity-related kidney disease, in both humans and experimental animal models. However, the regulatory factors involved in countering renal lipotoxicity are largely unknown. Here, we found that palmitic acid strongly promoted dephosphorylation and nuclear translocation of transcription factor EB (TFEB) by inhibiting the mechanistic target of rapamycin kinase complex 1 pathway in a Rag GTPase-dependent manner, though these effects gradually diminished after extended treatment. We then investigated the role of TFEB in the pathogenesis of obesity-related kidney disease. Proximal tubular epithelial cell-specific (PTEC-specific) Tfeb-deficient mice fed a high-fat diet (HFD) exhibited greater phospholipid accumulation in enlarged lysosomes, which manifested as multilamellar bodies (MLBs). Activated TFEB mediated lysosomal exocytosis of phospholipids, which helped reduce MLB accumulation in PTECs. Furthermore, HFD-fed, PTEC-specific Tfeb-deficient mice showed autophagic stagnation and exacerbated injury upon renal ischemia/reperfusion. Finally, higher body mass index was associated with increased vacuolation and decreased nuclear TFEB in the proximal tubules of patients with chronic kidney disease. These results indicate a critical role of TFEB-mediated lysosomal exocytosis in counteracting renal lipotoxicity.
Collapse
Affiliation(s)
- Jun Nakamura
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Takeshi Yamamoto
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yoshitsugu Takabatake
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Tomoko Namba-Hamano
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Satoshi Minami
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Atsushi Takahashi
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Jun Matsuda
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Shinsuke Sakai
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hiroaki Yonishi
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Shihomi Maeda
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Sho Matsui
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Isao Matsui
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Takayuki Hamano
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan.,Department of Nephrology, Nagoya City University Graduate School of Medical Sciences, Aichi, Japan
| | - Masatomo Takahashi
- Division of Metabolomics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Maiko Goto
- Division of Metabolomics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Yoshihiro Izumi
- Division of Metabolomics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Takeshi Bamba
- Division of Metabolomics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Miwa Sasai
- Department of Immunoparasitology, Research Institute for Microbial Diseases, and.,Laboratory of Immunoparasitology, World Premier International Research Center Initiative Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Masahiro Yamamoto
- Department of Immunoparasitology, Research Institute for Microbial Diseases, and.,Laboratory of Immunoparasitology, World Premier International Research Center Initiative Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Taiji Matsusaka
- Institute of Medical Sciences and Department of Basic Medical Science, and
| | - Fumio Niimura
- Department of Pediatrics, Tokai University School of Medicine, Kanagawa, Japan
| | - Motoko Yanagita
- Department of Nephrology, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Institute for the Advanced Study of Human Biology, Kyoto University, Kyoto, Japan
| | - Shuhei Nakamura
- Department of Genetics, Osaka University Graduate School of Medicine, Osaka, Japan.,Laboratory of Intracellular Membrane Dynamics, Graduate School of Frontier Biosciences.,Institute for Advanced Co-Creation Studies, and
| | - Tamotsu Yoshimori
- Department of Genetics, Osaka University Graduate School of Medicine, Osaka, Japan.,Laboratory of Intracellular Membrane Dynamics, Graduate School of Frontier Biosciences.,Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Suita, Osaka, Japan
| | - Andrea Ballabio
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Naples, Italy.,Medical Genetics Unit, Department of Medical and Translational Science, Federico II University, Naples, Italy.,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA.,Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, Texas, USA
| | - Yoshitaka Isaka
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| |
Collapse
|
6
|
Tannai H, Makita K, Koike Y, Nakai K, Tsurutani Y, Okudela K, Saito J, Matsui S, Kakuta Y, Nishikawa T. Usefulness and accuracy of segmental adrenal venous sampling on localisation and functional diagnosis of various adrenal lesions in primary aldosteronism. Clin Radiol 2022; 77:e652-e659. [PMID: 35710528 DOI: 10.1016/j.crad.2022.05.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 05/12/2022] [Indexed: 11/26/2022]
Abstract
AIM To clarify the usefulness and accuracy of segmental adrenal venous sampling (sAVS) on localisation and functional diagnosis of various adrenal lesions in primary aldosteronism. MATERIALS AND METHODS Consecutive patients (n=162) who underwent adrenalectomy and 138 patients indicated for medication following sAVS were analysed retrospectively. Based on immunohistopathological diagnosis, the positive predictive value (PPV) of computed tomography (CT)-detectable aldosterone-producing adenoma (APA) was calculated. Moreover, endocrinological and sAVS characteristics were analysed quantitatively and qualitatively among APA, CT-undetectable aldosterone-producing nodules (APNs), multiple aldosterone-producing micronodules (MAPM), and medication groups. RESULTS The PPV of APA by sAVS was 137/141 (97.1%; 95% confidence interval, 92.9-99.2%). Compared to the medication cases, the APA group showed stronger disease activity clinically and significant differences in adrenal hormones, such as a higher aldosterone level and aldosterone-to-cortisol ratio, and lower cortisol levels in the adrenal central vein and aldosterone maximum tributaries on the dominant side after cosyntropin stimulation. The APA group shows focal aldosterone hypersecretion, such as mean number of aldosterone elevated segments (1.7 ± 0.7 versus 2 ± 0.9, p=0.003) and presence of aldosterone-not-elevated segments (93% versus 41%, p<0.001). Clinically and in terms of sAVS, APN and MAPM showed similar characteristics to APA and to the medication cases, respectively. CONCLUSION sAVS can localise functionally active tissues of CT-detectable and CT-undetectable lesions enabling decisions on surgical or medical treatment.
Collapse
Affiliation(s)
- H Tannai
- Department of Radiology, Yokohama Rosai Hospital, Yokohama, Japan; Department of Diagnostic Radiology, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
| | - K Makita
- Department of Radiology, Nerima Hikarigaoka Hospital, Tokyo, Japan
| | - Y Koike
- Department of Interventional Radiology, Saiseikai Yokohama City Nanbu Hospital, Yokohama, Japan
| | - K Nakai
- Endocrinology and Diabetes Center, Yokohama Rosai Hospital, Yokohama, Japan
| | - Y Tsurutani
- Endocrinology and Diabetes Center, Yokohama Rosai Hospital, Yokohama, Japan
| | - K Okudela
- Department of Pathology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - J Saito
- Endocrinology and Diabetes Center, Yokohama Rosai Hospital, Yokohama, Japan
| | - S Matsui
- Department of Radiology, Yokohama Rosai Hospital, Yokohama, Japan
| | - Y Kakuta
- Department of Pathology, Yokohama Rosai Hospital, Yokohama, Japan
| | - T Nishikawa
- Endocrinology and Diabetes Center, Yokohama Rosai Hospital, Yokohama, Japan
| |
Collapse
|
7
|
Mizushima I, Saeki T, Kobayashi D, Hayashi H, Taniguchi Y, Nakata H, Matsui S, Nagasawa T, Yanagita M, Kawano M. POS1349 IMMUNOGLOBULIN G4-RELATED KIDNEY DISEASE’S PREDISPOSITION TO CHRONIC RENAL DYSFUNCTION, COMPLICATIONS OF MALIGNANCY, AND MORTALITY: A LONG-TERM NATIONWIDE MULTICENTER STUDY IN JAPAN. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.3015] [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: 11/04/2022]
Abstract
BackgroundIn immunoglobulin G4-related kidney disease (IgG4-RKD), persistent renal insufficiency may be observed despite the good initial response to glucocorticoids[1, 2]. However, its long-term prognosis in relation to renal function as well as malignancy and mortality has not been well clarified.ObjectivesTo clarify the long-term renal prognosis, complications of malignancy, mortality, and factors related to those outcomes in IgG4-RKD.MethodsWe retrospectively reviewed the medical records of patients with IgG4-RKD diagnosed by the expert members of the IgG4-RKD working group in the Japanese Society of Nephrology. We investigated clinical, radiological, and histopathological features at baseline and course of renal function, complications of malignancy, and mortality during the long-term observation periods (median 71 months) in 75 patients. Using collected data, we calculated the crude incidence rates (IR) of chronic kidney disease (CKD) status, malignancy, and death. Cox regression analyses were performed to assess CKD-related factors. Additionally, we calculated the standardized incidence ratio (SIR) of malignancy and standardized mortality ratio (SMR) using national Japan statistics.ResultsFifty-nine patients were male, and 16 were female (median age 70 years). At diagnosis, their median eGFR was 45.1 mL/min/1.73m2 (interquartile range [IQR] 28.6-69.9). Seventy-two patients (96%) were treated with prednisolone at a median initial dose of 30 (IQR 30-39) mg/day, leading to a reasonable initial improvement of renal function. The IR of CKD was 30.2/100 person-years, and 66.7% (50/75) of the patients showed CKD at the last visit. Age- and sex-adjusted Cox regression analyses indicated that lower eGFR (per 10 mL/min/1.73m2, hazard ratio [HR] 0.70, 95% confidence interval [CI] 0.61-0.80), pre-existing hypertension (HR 2.39, 95% CI 1.32-4.34), and wider areas with inflammation (>50% vs. <10%, HR 2.55, 95% CI 1.07-6.08) or fibrosis (>50% vs. <5%, HR 2.84, 95% CI 1.18-6.85) in the biopsied renal specimens at treatment initiation had a significant impact on the time to CKD. Eight patients (10.7%) died during follow-up due to malignancy, severe infection, cerebral hemorrhage, or myocardial infarction. The crude mortality rate was 1.76/100 person-years, and a SMR calculated according to national Japan statistics was 0.97 (95% CI 0.42-1.90). On the other hand, 15 patients were diagnosed as having malignancies during follow-up. The IR of malignancy was 3.71/100 person-years, and the SIR of malignancy was 1.80 (95% CI 1.03-2.93).ConclusionThis study suggests that pre-treated renal insufficiency and extensive renal inflammatory and fibrotic lesions are related to CKD under glucocorticoid therapy in IgG4-RKD. Similarly with the whole IgG4-related disease, IgG4-RKD may have an increased incidence of malignancy but a mortality rate equivalent to the age- and sex-matched Japanese population.References[1]Saeki T et al. The clinical course of patients with IgG4-related kidney disease. Kidney Int. 2013 Oct;84(4):826-33.[2]Mizushima I et al. Factors related to renal cortical atrophy development after glucocorticoid therapy in IgG4-related kidney disease: a retrospective multicenter study. Arthritis Res Ther. 2016 Nov 25;18(1):273.Disclosure of InterestsNone declared
Collapse
|
8
|
Mizuno S, Okabayashi K, Ikebata A, Matsui S, Seishima R, Shigeta K, Kitagawa Y. Prediction of pouchitis after ileal pouch-anal anastomosis in patients with ulcerative colitis using artificial intelligence and deep learning. Tech Coloproctol 2022; 26:471-478. [PMID: 35233723 DOI: 10.1007/s10151-022-02602-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 02/16/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND Pouchitis is one of the major postoperative complications of ulcerative colitis (UC), and it is still difficult to predict the development of pouchitis after ileal pouch-anal anastomosis (IPAA) in UC patients. In this study, we examined whether a deep learning (DL) model could predict the development of pouchitis. METHODS UC patients who underwent two-stage restorative proctocolectomy with IPAA at Keio University Hospital were included in this retrospective analysis. The modified pouchitis disease activity index (mPDAI) was evaluated by the clinical and endoscopic findings. Pouchitis was defined as an mPDAI ≥ 5.860; endoscopic pouch images before ileostomy closure were collected. A convolutional neural network was used as the DL model, and the prediction rates of pouchitis after ileostomy closure were evaluated by fivefold cross-validation. RESULTS A total of 43 patients were included (24 males and 19 females, mean age 39.2 ± 13.2 years). Pouchitis occurred in 14 (33%) patients after ileostomy closure. In less than half of the patients, mPDAI scores matched before and after ileostomy closure. Most of patients whose mPDAI scores did not match before and after ileostomy closure had worse mPDAI scores after than before. The prediction rate of pouchitis calculated by the area under the curve using the DL model was 84%. Conversely, the prediction rate of pouchitis using mPDAI before ileostomy closure was 62%. CONCLUSION The prediction rate of pouchitis using the DL model was more than 20% higher than that using mPDAI, suggesting the utility of the DL model as a prediction model for the development of pouchitis. It could also be used to determine early interventions for pouchitis.
Collapse
Affiliation(s)
- S Mizuno
- Department of Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - K Okabayashi
- Department of Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - A Ikebata
- Department of Surgery, Saitama Medical Center, Saitama, Japan
| | - S Matsui
- Department of Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - R Seishima
- Department of Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - K Shigeta
- Department of Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Y Kitagawa
- Department of Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| |
Collapse
|
9
|
Wada E, Kobayashi M, Kohno D, Kikuchi O, Suga T, Matsui S, Yokota-Hashimoto H, Honzawa N, Ikeuchi Y, Tsuneoka H, Hirano T, Obinata H, Sasaki T, Kitamura T. Disordered branched chain amino acid catabolism in pancreatic islets is associated with postprandial hypersecretion of glucagon in diabetic mice. J Nutr Biochem 2021; 97:108811. [PMID: 34197915 DOI: 10.1016/j.jnutbio.2021.108811] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 06/02/2021] [Accepted: 06/03/2021] [Indexed: 01/01/2023]
Abstract
Dysregulation of glucagon is associated with the pathophysiology of type 2 diabetes. We previously reported that postprandial hyperglucagonemia is more obvious than fasting hyperglucagonemia in type 2 diabetes patients. However, which nutrient stimulates glucagon secretion in the diabetic state and the underlying mechanism after nutrient intake are unclear. To answer these questions, we measured plasma glucagon levels in diabetic mice after oral administration of various nutrients. The effects of nutrients on glucagon secretion were assessed using islets isolated from diabetic mice and palmitate-treated islets. In addition, we analyzed the expression levels of branched chain amino acid (BCAA) catabolism-related enzymes and their metabolites in diabetic islets. We found that protein, but not carbohydrate or lipid, increased plasma glucagon levels in diabetic mice. Among amino acids, BCAAs, but not the other essential or nonessential amino acids, increased plasma glucagon levels. BCAAs also directly increased the intracellular calcium concentration in α cells. When BCAAs transport was suppressed by an inhibitor of system L-amino acid transporters, glucagon secretion was reduced even in the presence of BCAAs. We also found that the expression levels of BCAA catabolism-related enzymes and their metabolite contents were altered in diabetic islets and palmitate-treated islets compared to control islets, indicating disordered BCAA catabolism in diabetic islets. Furthermore, BCKDK inhibitor BT2 suppressed BCAA-induced hypersecretion of glucagon in diabetic islets and palmitate-treated islets. Taken together, postprandial hypersecretion of glucagon in the diabetic state is attributable to disordered BCAA catabolism in pancreatic islet cells.
Collapse
Affiliation(s)
- Eri Wada
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma, Japan
| | - Masaki Kobayashi
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma, Japan
| | - Daisuke Kohno
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma, Japan
| | - Osamu Kikuchi
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma, Japan
| | - Takayoshi Suga
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma, Japan
| | - Sho Matsui
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma, Japan; Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Hiromi Yokota-Hashimoto
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma, Japan
| | - Norikiyo Honzawa
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma, Japan
| | - Yuichi Ikeuchi
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma, Japan
| | - Haruka Tsuneoka
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma, Japan
| | - Touko Hirano
- Education and Research Support Center, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Hideru Obinata
- Education and Research Support Center, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Tsutomu Sasaki
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma, Japan; Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Tadahiro Kitamura
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma, Japan.
| |
Collapse
|
10
|
Suga T, Sato K, Ohyama T, Matsui S, Kobayashi T, Tojima H, Horiguchi N, Yamazaki Y, Kakizaki S, Nishikido A, Okamura T, Yamada M, Kitamura T, Uraoka T. Ipragliflozin-induced improvement of liver steatosis in obese mice may involve sirtuin signaling. World J Hepatol 2020; 12:350-362. [PMID: 32821334 PMCID: PMC7407917 DOI: 10.4254/wjh.v12.i7.350] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/20/2020] [Accepted: 06/02/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Sodium glucose cotransporter 2 (SGLT2) inhibitors are newly developed oral antidiabetic drugs. SGLT2 is primarily expressed in the kidneys and reabsorbs approximately 90% of the glucose filtered by the renal glomeruli. SGLT2 inhibitors lower glucose levels independently of insulin action by facilitating urinary glucose excretion. The SGLT2 inhibitor ipragliflozin has reportedly improved liver steatosis in animal models and clinical studies. However, the mechanisms by which SGLT2 inhibitors improve liver steatosis are not fully understood.
AIM To investigate the ameliorative effects of ipragliflozin on liver steatosis and the mechanisms of these effects in obese mice.
METHODS We analyzed 8-wk-old male obese (ob/ob) mice that were randomly divided into a group receiving a normal chow diet and a group receiving a normal chow diet supplemented with ipragliflozin (3 mg/kg or 10 mg/kg) for 4 wk. We also analyzed their lean sex-matched littermates receiving a normal chow diet as another control group. Body weight and liver weight were evaluated, and liver histology, immunoblotting, and reverse transcription-polymerase chain reaction analyses were performed.
RESULTS Hepatic lipid accumulation was significantly ameliorated in ob/ob mice treated with 10 mg/kg ipragliflozin compared to untreated ob/ob mice irrespective of body weight changes. Ipragliflozin had no appreciable effects on hepatic oxidative stress-related gene expression levels or macrophage infiltration, but significantly reduced hepatic interleukin-1β (IL-1β) mRNA expression levels. Ipragliflozin increased both the mRNA and protein expression levels of sirtuin 1 (SIRT1) in the liver. The hepatic mRNA levels of peroxisome proliferator-activated receptor γ coactivator 1α (PGC-1α), peroxisome proliferator-activated receptor α (PPARα), and fibroblast growth factor-21 (FGF21) were also significantly higher in ipragliflozin-treated ob/ob mice than in untreated ob/ob mice.
CONCLUSION Our study suggests that the liver steatosis-ameliorating effects of ipragliflozin in ob/ob mice may be mediated partly by hepatic SIRT1 signaling, possibly through the PGC-1α/PPARα-FGF21 pathway.
Collapse
Affiliation(s)
- Takayoshi Suga
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Maebashi 371-8511, Gunma, Japan
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi 371-8512, Gunma, Japan
| | - Ken Sato
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Maebashi 371-8511, Gunma, Japan
| | - Tatsuya Ohyama
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Maebashi 371-8511, Gunma, Japan
| | - Sho Matsui
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi 371-8512, Gunma, Japan
| | - Takeshi Kobayashi
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Maebashi 371-8511, Gunma, Japan
| | - Hiroki Tojima
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Maebashi 371-8511, Gunma, Japan
| | - Norio Horiguchi
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Maebashi 371-8511, Gunma, Japan
| | - Yuichi Yamazaki
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Maebashi 371-8511, Gunma, Japan
| | - Satoru Kakizaki
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Maebashi 371-8511, Gunma, Japan
| | - Ayaka Nishikido
- Department of Medicine and Molecular Science, Gunma Graduate School of Medicine, Maebashi 371-8511, Gunma, Japan
| | - Takashi Okamura
- Department of Medicine and Molecular Science, Gunma Graduate School of Medicine, Maebashi 371-8511, Gunma, Japan
| | - Masanobu Yamada
- Department of Medicine and Molecular Science, Gunma Graduate School of Medicine, Maebashi 371-8511, Gunma, Japan
| | - Tadahiro Kitamura
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi 371-8512, Gunma, Japan
| | - Toshio Uraoka
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Maebashi 371-8511, Gunma, Japan
| |
Collapse
|
11
|
Hosooka T, Hosokawa Y, Matsugi K, Shinohara M, Senga Y, Tamori Y, Aoki C, Matsui S, Sasaki T, Kitamura T, Kuroda M, Sakaue H, Nomura K, Yoshino K, Nabatame Y, Itoh Y, Yamaguchi K, Hayashi Y, Nakae J, Accili D, Yokomizo T, Seino S, Kasuga M, Ogawa W. The PDK1-FoxO1 signaling in adipocytes controls systemic insulin sensitivity through the 5-lipoxygenase-leukotriene B 4 axis. Proc Natl Acad Sci U S A 2020; 117:11674-11684. [PMID: 32393635 PMCID: PMC7261087 DOI: 10.1073/pnas.1921015117] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Although adipocytes are major targets of insulin, the influence of impaired insulin action in adipocytes on metabolic homeostasis remains unclear. We here show that adipocyte-specific PDK1 (3'-phosphoinositide-dependent kinase 1)-deficient (A-PDK1KO) mice manifest impaired metabolic actions of insulin in adipose tissue and reduction of adipose tissue mass. A-PDK1KO mice developed insulin resistance, glucose intolerance, and hepatic steatosis, and this phenotype was suppressed by additional ablation of FoxO1 specifically in adipocytes (A-PDK1/FoxO1KO mice) without an effect on adipose tissue mass. Neither circulating levels of adiponectin and leptin nor inflammatory markers in adipose tissue differed between A-PDK1KO and A-PDK1/FoxO1KO mice. Lipidomics and microarray analyses revealed that leukotriene B4 (LTB4) levels in plasma and in adipose tissue as well as the expression of 5-lipoxygenase (5-LO) in adipose tissue were increased and restored in A-PDK1KO mice and A-PDK1/FoxO1KO mice, respectively. Genetic deletion of the LTB4 receptor BLT1 as well as pharmacological intervention to 5-LO or BLT1 ameliorated insulin resistance in A-PDK1KO mice. Furthermore, insulin was found to inhibit LTB4 production through down-regulation of 5-LO expression via the PDK1-FoxO1 pathway in isolated adipocytes. Our results indicate that insulin signaling in adipocytes negatively regulates the production of LTB4 via the PDK1-FoxO1 pathway and thereby maintains systemic insulin sensitivity.
Collapse
Affiliation(s)
- Tetsuya Hosooka
- Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Yusei Hosokawa
- Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Kaku Matsugi
- Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Masakazu Shinohara
- Division of Epidemiology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
- The Integrated Center for Mass Spectrometry, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Yoko Senga
- Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Yoshikazu Tamori
- Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
- Department of Internal Medicine, Chibune General Hospital, 555-0001 Osaka, Japan
| | - Chikako Aoki
- Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Sho Matsui
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, 371-8512 Maebashi, Japan
| | - Tsutomu Sasaki
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, 371-8512 Maebashi, Japan
| | - Tadahiro Kitamura
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, 371-8512 Maebashi, Japan
| | - Masashi Kuroda
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, 770-8503 Tokushima, Japan
| | - Hiroshi Sakaue
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, 770-8503 Tokushima, Japan
| | - Kazuhiro Nomura
- Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Kei Yoshino
- Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Yuko Nabatame
- Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Yoshito Itoh
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, 602-8566 Kyoto, Japan
| | - Kanji Yamaguchi
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, 602-8566 Kyoto, Japan
| | - Yoshitake Hayashi
- Division of Molecular Medicine and Medical Genetics, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Jun Nakae
- Department of Internal Medicine, Keio University School of Medicine, 160-8582 Tokyo, Japan
| | - Domenico Accili
- Department of Medicine and Naomi Berrie Diabetes Center, Columbia University, NY 10032
| | - Takehiko Yokomizo
- Department of Biochemistry, Juntendo University School of Medicine, 113-8421 Tokyo, Japan
| | - Susumu Seino
- Division of Molecular and Metabolic Medicine, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan
| | - Masato Kasuga
- The Institute for Adult Diseases, Asahi Life Foundation, 103-0002 Tokyo, Japan
| | - Wataru Ogawa
- Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, 650-0017 Kobe, Japan;
| |
Collapse
|
12
|
Matsui S, Okabayashi K, Hasegawa H, Tsuruta M, Shigeta K, Ishida T, Yamada T, Kondo T, Yamauchi S, Sugihara K, Kitagawa Y. Effect of high ligation on survival of patients undergoing surgery for primary colorectal cancer and synchronous liver metastases. BJS Open 2020; 4:508-515. [PMID: 32243733 PMCID: PMC7260402 DOI: 10.1002/bjs5.50274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/29/2020] [Accepted: 02/03/2020] [Indexed: 11/25/2022] Open
Abstract
Background Although R0 surgery is recommended for stage IV colorectal cancer, the degree of required lymphadenectomy has not been established. The aim of this study was to investigate the prognostic impact of high ligation (HL) of the feeding artery and the number of retrieved lymph nodes after R0 surgery for colorectal cancer and synchronous colorectal cancer liver metastasis (CRLM). Methods This was a multi‐institutional retrospective analysis of patients with colorectal cancer and synchronous CRLM who had R0 surgery between January 1997 and December 2007. Clinical and pathological features were compared in patients who underwent HL and those who had a low ligation (LL). Kaplan–Meier analysis was performed to estimate the effect of HL on overall survival (OS). The impact of several risk factors on survival was analysed using the Cox proportional hazards model. Results Of 549 patients, 409 (74·5 per cent) had HL. Median follow‐up was 51·4 months. HL significantly improved the 5‐year OS rate (58·2 per cent versus 49·3 per cent for LL; P = 0·017). Multivariable analysis revealed HL to be a significant prognostic factor compared with LL (5‐year mortality: hazard ratio (HR) 0·68, 95 per cent c.i. 0·51 to 0·90; P = 0·007). In subgroup analysis, the positive effect of HL on OS was greatest in patients with lymph node metastasis. Conclusion HL of the feeding artery was associated with improved OS in patients with colorectal cancer and synchronous CRLM after R0 surgery.
Collapse
Affiliation(s)
- S Matsui
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - K Okabayashi
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - H Hasegawa
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan.,Department of Surgery, Tokyo Dental College Ichikawa General Hospital, Chiba, Japan
| | - M Tsuruta
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - K Shigeta
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - T Ishida
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - T Yamada
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - T Kondo
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - S Yamauchi
- Department of Surgical Oncology, Tokyo Medical and Dental University, Tokyo, Japan
| | - K Sugihara
- Department of Surgical Oncology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Y Kitagawa
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| |
Collapse
|
13
|
Kidokoro Y, Nakanishi A, Matsui S, Kubouchi Y, Takagi Y, Haruki T, Taniguchi Y, Umekita Y, Nakamura H. EP1.04-01 Association of PD-L1 Expression with Lung Adenocarcinoma Containing Solid or Micropapillary Components. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2117] [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: 11/15/2022]
|
14
|
Fujii T, Shibata Y, Akane A, Aoki W, Sekiguchi A, Takahashi K, Matsui S, Nishiwaki K. A randomised controlled trial of pectoral nerve‐2 (
PECS
2) block vs. serratus plane block for chronic pain after mastectomy. Anaesthesia 2019; 74:1558-1562. [DOI: 10.1111/anae.14856] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/23/2019] [Indexed: 12/20/2022]
Affiliation(s)
- T. Fujii
- Department of Anaesthesiology Nagoya University Graduate School of Medicine Nagoya Japan
| | - Y. Shibata
- Department of Surgery Nagoya University Hospital Nagoya Japan
| | - A. Akane
- Department of Anaesthesiology Nagoya University Hospital Nagoya Japan
| | - W. Aoki
- Department of Anaesthesiology Nagoya University Hospital Nagoya Japan
| | - A. Sekiguchi
- Department of Anaesthesiology Nagoya University Hospital Nagoya Japan
| | - K. Takahashi
- Department of Biostatistics Nagoya University Graduate School of Medicine Nagoya Japan
| | - S. Matsui
- Department of Biostatistics Nagoya University Graduate School of Medicine Nagoya Japan
| | - K. Nishiwaki
- Department of Anaesthesiology Nagoya University Graduate School of Medicine Nagoya Japan
| |
Collapse
|
15
|
Fukami K, Azumi N, Inoue S, Kai T, Kimura H, Kiuchi J, Matsui S, Takano S, Watanabe T, Zhang C. Performance verification of a precise vibrating-wire magnet alignment technique for next-generation light sources. Rev Sci Instrum 2019; 90:054703. [PMID: 31153263 DOI: 10.1063/1.5086505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 04/16/2019] [Indexed: 06/09/2023]
Abstract
The high-accuracy alignment of magnets is a key issue in the development of next-generation light-source rings. To obtain adequate dynamic apertures, the magnets must be aligned to an accuracy of 10 µm or better. Recently, a new technique that utilizes a vibrating wire has attracted attention for this purpose as it can directly determine with high resolution the magnetic centers in a series of multipole magnets on a straight section between bending magnets. In conventional vibrating-wire alignment techniques, wire sag, which causes alignment errors, is determined from the theoretical catenary curve. By contrast, in the present study, we have measured the sag profiles of various wires in the longitudinal direction to micrometer-order accuracy. We concluded that we can reduce deviations of the actual wire sag from the theoretical curve by choosing a suitable wire. By setting up a test bench of a vibrating-wire alignment system for a series of multipole magnet on a straight section, we have achieved the total error of the magnetic-center measurements of micrometer-order in the standard deviation. Moreover, two systematic error factors, the drift of the magnetic centers due to thermal deformations of the magnets after they are excited and the change in the magnetic centers due to reassembly of the magnets after installing the vacuum chamber, are included in practical magnet alignments. We have experimentally investigated these error factors using the test bench.
Collapse
Affiliation(s)
- K Fukami
- Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
| | - N Azumi
- Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
| | - S Inoue
- SPring-8 Service Co., Ltd., Hyogo 679-5165, Japan
| | - T Kai
- SPring-8 Service Co., Ltd., Hyogo 679-5165, Japan
| | - H Kimura
- Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
| | - J Kiuchi
- SPring-8 Service Co., Ltd., Hyogo 679-5165, Japan
| | - S Matsui
- RIKEN SPring-8 Center, Hyogo 679-5148, Japan
| | - S Takano
- Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
| | - T Watanabe
- Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
| | - C Zhang
- Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
| |
Collapse
|
16
|
Matsui S, Sasaki T, Kohno D, Yaku K, Inutsuka A, Yokota-Hashimoto H, Kikuchi O, Suga T, Kobayashi M, Yamanaka A, Harada A, Nakagawa T, Onaka T, Kitamura T. Neuronal SIRT1 regulates macronutrient-based diet selection through FGF21 and oxytocin signalling in mice. Nat Commun 2018; 9:4604. [PMID: 30389922 PMCID: PMC6214990 DOI: 10.1038/s41467-018-07033-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 10/12/2018] [Indexed: 12/02/2022] Open
Abstract
Diet affects health through ingested calories and macronutrients, and macronutrient balance affects health span. The mechanisms regulating macronutrient-based diet choices are poorly understood. Previous studies had shown that NAD-dependent deacetylase sirtuin-1 (SIRT1) in part influences the health-promoting effects of caloric restriction by boosting fat use in peripheral tissues. Here, we show that neuronal SIRT1 shifts diet choice from sucrose to fat in mice, matching the peripheral metabolic shift. SIRT1-mediated suppression of simple sugar preference requires oxytocin signalling, and SIRT1 in oxytocin neurons drives this effect. The hepatokine FGF21 acts as an endocrine signal to oxytocin neurons, promoting neuronal activation and Oxt transcription and suppressing the simple sugar preference. SIRT1 promotes FGF21 signalling in oxytocin neurons and stimulates Oxt transcription through NRF2. Thus, neuronal SIRT1 contributes to the homeostatic regulation of macronutrient-based diet selection in mice.
Collapse
Affiliation(s)
- Sho Matsui
- Laboratory of Metabolic Signal, Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8512, Japan
| | - Tsutomu Sasaki
- Laboratory of Metabolic Signal, Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8512, Japan.
| | - Daisuke Kohno
- Laboratory of Metabolic Signal, Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8512, Japan
- Advanced Scientific Research Leaders Development Unit, Gunma University, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8512, Japan
| | - Keisuke Yaku
- Frontier Research Core for Life Science, University of Toyama, 2630 Sugitani, Toyama, Toyama, 930-0194, Japan
- Department of Metabolism and Nutrition, Graduate School of Medicine and Pharmaceutical Science for Research, University of Toyama, 2630 Sugitani, Toyama, Toyama, 930-0194, Japan
| | - Ayumu Inutsuka
- Department of Neuroscience II, Research Institute of Environmental Medicine, Nagoya University, Furocho, Nagoya, 464-8601, Japan
- Division of Brain and Neurophysiology, Department of Physiology, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
| | - Hiromi Yokota-Hashimoto
- Laboratory of Metabolic Signal, Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8512, Japan
| | - Osamu Kikuchi
- Laboratory of Metabolic Signal, Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8512, Japan
| | - Takayoshi Suga
- Laboratory of Metabolic Signal, Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8512, Japan
| | - Masaki Kobayashi
- Laboratory of Metabolic Signal, Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8512, Japan
| | - Akihiro Yamanaka
- Department of Neuroscience II, Research Institute of Environmental Medicine, Nagoya University, Furocho, Nagoya, 464-8601, Japan
| | - Akihiro Harada
- Department of Cell Biology, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Takashi Nakagawa
- Frontier Research Core for Life Science, University of Toyama, 2630 Sugitani, Toyama, Toyama, 930-0194, Japan
- Department of Metabolism and Nutrition, Graduate School of Medicine and Pharmaceutical Science for Research, University of Toyama, 2630 Sugitani, Toyama, Toyama, 930-0194, Japan
| | - Tatsushi Onaka
- Division of Brain and Neurophysiology, Department of Physiology, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
| | - Tadahiro Kitamura
- Laboratory of Metabolic Signal, Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8512, Japan.
| |
Collapse
|
17
|
Ishikawa T, Ishiguro M, Nakatani E, Ueno H, Uetake H, Murotani K, Matsui S, Tomita N, Shimada Y, Takahashi K, Kotake K, Watanabe M, Mochizuki H, Teramukai S, Sugihara K. Prognostic impact of MSI and 18qLOH in stage II colon cancer: A prospective biomarker study in the SACURA trial. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy281.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
18
|
Sasaki T, Numano R, Yokota-Hashimoto H, Matsui S, Kimura N, Takeuchi H, Kitamura T. A central-acting connexin inhibitor, INI-0602, prevents high-fat diet-induced feeding pattern disturbances and obesity in mice. Mol Brain 2018; 11:28. [PMID: 29793524 PMCID: PMC5968494 DOI: 10.1186/s13041-018-0372-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 05/17/2018] [Indexed: 12/14/2022] Open
Abstract
A high-fat diet (HFD) causes obesity by promoting excessive energy intake, and simultaneously, by disturbing the timing of energy intake. Restoring the feeding pattern is sufficient to prevent HFD-induced obesity in mice. However, the molecular mechanism(s) underlying HFD-induced feeding pattern disturbances remain elusive. Saturated fatty acids activate microglia and cause hypothalamic inflammation. Activated microglia cause neuroinflammation, which spreads via inflammatory cytokines and gap-junction hemichannels. However, the role of gap-junction hemichannels in HFD-induced obesity remains unaddressed. We used a novel, central-acting connexin inhibitor, INI-0602, which has high affinity for gap junction hemichannels and does not affect the induction of inflammatory cytokines. We analyzed ad libitum feeding behavior and locomotor activity in mice that were fed normal chow (NC), a HFD with elevated saturated fatty acids (SFAs), or a HFD with very high SFAs. We found that HFD feeding induced acute hyperphagia, mainly during the light cycle. Feeding pattern disturbances were more pronounced in mice that consumed the HFD with very high SFAs than in mice that consumed the HFD with elevated SFAs. When INI-0602 was administered before the HFD was introduced, it blocked the feeding pattern disturbance, but not locomotor activity disturbances; moreover, it prevented subsequent diet-induced obesity. However, when INI-0602 was administered after the HFD had disturbed the feeding pattern, it failed to restore the normal feeding pattern. Therefore, we propose that SFAs in HFDs played a major role in disrupting feeding patterns in mice. Moreover, the feeding pattern disturbance required the function of central, gap junction hemichannels at the initiation of a HFD. However, altering hemichannel function after the feeding pattern disturbance was established had no effect. Thus, preventing the occurrence of a feeding pattern disturbance by blocking the hemichannel pathway was associated with the prevention of the HFD-induced obesity in mice.
Collapse
Affiliation(s)
- Tsutomu Sasaki
- Laboratory of Metabolic Signaling, Institute for Molecular and Cellular Regulation, Gunma University, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8512, Japan.
| | - Rika Numano
- Department of Environmental and Life Sciences, Toyohashi University of Technology, 1-1 Hibarigaoka Tempaku-cho, Toyohashi, 441-8580, Japan.,Electronics-Interdisciplinary Research Institute (EIIRIS), Toyohashi University of Technology, 1-1 Hibarigaoka Tempaku-cho, Toyohashi, 441-8580, Japan
| | - Hiromi Yokota-Hashimoto
- Laboratory of Metabolic Signaling, Institute for Molecular and Cellular Regulation, Gunma University, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8512, Japan
| | - Sho Matsui
- Laboratory of Metabolic Signaling, Institute for Molecular and Cellular Regulation, Gunma University, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8512, Japan
| | - Naobumi Kimura
- Department of Environmental and Life Sciences, Toyohashi University of Technology, 1-1 Hibarigaoka Tempaku-cho, Toyohashi, 441-8580, Japan
| | - Hideyuki Takeuchi
- Department of Neurology and Stroke Medicine, Yokohama City University Graduate School of Medicine, 3-9, Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Tadahiro Kitamura
- Laboratory of Metabolic Signaling, Institute for Molecular and Cellular Regulation, Gunma University, 3-39-15 Showa-machi, Maebashi, Gunma, 371-8512, Japan
| |
Collapse
|
19
|
Kawasaki A, Mizushima Y, Matsui S, Hoshino K, Yano S, Kitagawa M. A Case of T-Cell Lymphoma Accompanying Marked Eosinophilia, Chronic Eosinophilic Pneumonia and Eosinophilic Pleural Effusion. A Case Report. Tumori 2018; 77:527-30. [PMID: 1803719 DOI: 10.1177/030089169107700616] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A 57-year-old woman was admitted to our hospital for lumbago, weight loss and weakness of her right lower extremity. Leukocytosis was evident with marked eosinophilia (65.5 % = 46,000/mm3), and the chest roentgenogram showed diffuse reticular shadows throughout both lung fields and a left pleural effusion. The pleural effusion contained 22.4 % eosinophils with no immature cells. Biopsy of a thumb-sized mass on the chest wall revealed a T-cell lymphoma of pleomorphic type. The diffuse pulmonary shadow was diagnosed as chronic eosinophilic pneumonia by autopsy. This was a relatively rare case of T-cell lymphoma, in which an eosinophilic pneumonia and eosinophilic pleural effusion were observed.
Collapse
Affiliation(s)
- A Kawasaki
- First Department of Internal Medicine, Toyama Medical and Pharmaceutical University, Japan
| | | | | | | | | | | |
Collapse
|
20
|
Matsui S, Higashi Y, Kajikawa M, Maruhashi T, Oda N, Kishimoto S, Hidaka T, Nakashima A, Noma K, Kihara Y. P3450Optimal cut-off level of low-density lipoprotein cholesterol for normal vascular function in a general population. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3450] [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
|
21
|
Matsui S, Mori Y, Nonaka T, Hattori T, Kasamatsu Y, Haraguchi D, Watanabe Y, Uchiyama K, Ishikawa M. Energy deposition evaluation for ultra-low energy electron beam irradiation systems using calibrated thin radiochromic film and Monte Carlo simulations. Rev Sci Instrum 2016; 87:053309. [PMID: 27250416 DOI: 10.1063/1.4949501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
For evaluation of on-site dosimetry and process design in industrial use of ultra-low energy electron beam (ULEB) processes, we evaluate the energy deposition using a thin radiochromic film and a Monte Carlo simulation. The response of film dosimeter was calibrated using a high energy electron beam with an acceleration voltage of 2 MV and alanine dosimeters with uncertainty of 11% at coverage factor 2. Using this response function, the results of absorbed dose measurements for ULEB were evaluated from 10 kGy to 100 kGy as a relative dose. The deviation between the responses of deposit energy on the films and Monte Carlo simulations was within 15%. As far as this limitation, relative dose estimation using thin film dosimeters with response function obtained by high energy electron irradiation and simulation results is effective for ULEB irradiation processes management.
Collapse
Affiliation(s)
- S Matsui
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsucho, Nishiku, Hamamatsu, Shizuoka 431-1202, Japan
| | - Y Mori
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsucho, Nishiku, Hamamatsu, Shizuoka 431-1202, Japan
| | - T Nonaka
- Hamamatsu Photonics K.K. Electron Tube Division, 314-5 Shimokanzo, Iwata, Shizuoka 438-0193, Japan
| | - T Hattori
- Hamamatsu Photonics K.K. Electron Tube Division, 314-5 Shimokanzo, Iwata, Shizuoka 438-0193, Japan
| | - Y Kasamatsu
- Hamamatsu Photonics K.K. Electron Tube Division, 314-5 Shimokanzo, Iwata, Shizuoka 438-0193, Japan
| | - D Haraguchi
- Hamamatsu Photonics K.K. Electron Tube Division, 314-5 Shimokanzo, Iwata, Shizuoka 438-0193, Japan
| | - Y Watanabe
- Hamamatsu Photonics K.K. Electron Tube Division, 314-5 Shimokanzo, Iwata, Shizuoka 438-0193, Japan
| | - K Uchiyama
- Hamamatsu Photonics K.K. Electron Tube Division, 314-5 Shimokanzo, Iwata, Shizuoka 438-0193, Japan
| | - M Ishikawa
- Hamamatsu Photonics K.K. Electron Tube Division, 314-5 Shimokanzo, Iwata, Shizuoka 438-0193, Japan
| |
Collapse
|
22
|
Yamane T, Muramatsu A, Yoshino S, Matsui S, Shimura M, Tsujii Y, Iwatsuki K, Kobayashi-Hattori K, Oishi Y. mTOR inhibition by rapamycin increases ceramide synthesis by promoting transforming growth factor-β1/Smad signaling in the skin. FEBS Open Bio 2016; 6:317-25. [PMID: 27239444 PMCID: PMC4821357 DOI: 10.1002/2211-5463.12039] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 01/27/2016] [Accepted: 01/27/2016] [Indexed: 01/10/2023] Open
Abstract
Although mammalian target of rapamycin (mTOR) mediates a wide variety of biological functions, little information is available on the effect of mTOR on the functions of skin cells. In this study, we investigated effects of mTOR inhibition by rapamycin on ceramide synthesis in the skin of rats and human keratinocytes and its regulatory mechanisms. The phosphorylation of p70 S6 kinase, which indicates mTOR activation, was induced in the skin of rats fed a high-fat diet, but this abnormality was reversed by supplementation with rapamycin. Ceramide levels and the mRNA levels of serine palmitoyltransferase (SPT) and transforming growth factor (TGF)-β1 were suppressed in the skin of rats fed high-fat diets, but this abnormality was reversed by supplementation with rapamycin. TGF-β1-induced SPT mRNA expression was blocked by SB525334, an inhibitor of TGF-β1-induced Smad2/3 nuclear localization, in human keratinocytes. Rapamycin-induced SPT mRNA expression was blocked by an anti-TGF-β1 antibody or SB525334 in human keratinocytes. These results show that mTOR inhibition by rapamycin increases ceramide synthesis by promoting TGF-β1/Smad signaling in the skin.
Collapse
Affiliation(s)
- Takumi Yamane
- Department of Nutritional Science and Food Safety Faculty of Applied Bioscience Tokyo University of Agriculture Setagaya-ku Japan
| | - Aimi Muramatsu
- Department of Nutritional Science Faculty of Applied Bioscience Tokyo University of Agriculture Setagaya-ku Japan
| | - Sawako Yoshino
- Department of Nutritional Science and Food Safety Faculty of Applied Bioscience Tokyo University of Agriculture Setagaya-ku Japan
| | - Sho Matsui
- Department of Nutritional Science Faculty of Applied Bioscience Tokyo University of Agriculture Setagaya-ku Japan
| | - Mari Shimura
- Department of Nutritional Science and Food Safety Faculty of Applied Bioscience Tokyo University of Agriculture Setagaya-ku Japan
| | - Yoshimasa Tsujii
- Department of Applied Biology and Chemistry Faculty of Applied Bioscience Tokyo University of Agriculture Setagaya-ku Japan
| | - Ken Iwatsuki
- Department of Nutritional Science and Food Safety Faculty of Applied Bioscience Tokyo University of Agriculture Setagaya-ku Japan
| | - Kazuo Kobayashi-Hattori
- Department of Nutritional Science Faculty of Applied Bioscience Tokyo University of Agriculture Setagaya-ku Japan
| | - Yuichi Oishi
- Department of Nutritional Science and Food Safety Faculty of Applied Bioscience Tokyo University of Agriculture Setagaya-ku Japan
| |
Collapse
|
23
|
Matsui S, Nakamura M, Torikata H. Effects of Topping at Different Times on the Nitrogen and Carbohydrate Contents and Growth Regulator Activity in Sprouted Lateral Buds of Kyoho Grapevines (Vitis ViniferaL. ×V. LabruscaBailey). ACTA ACUST UNITED AC 2015. [DOI: 10.1080/00221589.1979.11514859] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
24
|
Khosroshahi A, Wallace ZS, Crowe JL, Akamizu T, Azumi A, Carruthers MN, Chari ST, Della-Torre E, Frulloni L, Goto H, Hart PA, Kamisawa T, Kawa S, Kawano M, Kim MH, Kodama Y, Kubota K, Lerch MM, Löhr M, Masaki Y, Matsui S, Mimori T, Nakamura S, Nakazawa T, Ohara H, Okazaki K, Ryu JH, Saeki T, Schleinitz N, Shimatsu A, Shimosegawa T, Takahashi H, Takahira M, Tanaka A, Topazian M, Umehara H, Webster GJ, Witzig TE, Yamamoto M, Zhang W, Chiba T, Stone JH. International Consensus Guidance Statement on the Management and Treatment of IgG4-Related Disease. Arthritis Rheumatol 2015; 67:1688-99. [PMID: 25809420 DOI: 10.1002/art.39132] [Citation(s) in RCA: 589] [Impact Index Per Article: 65.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 03/19/2015] [Indexed: 02/06/2023]
Affiliation(s)
- A Khosroshahi
- Emory University School of Medicine, Atlanta, Georgia
| | | | - J L Crowe
- University of Tennessee College of Medicine, Chattanooga
| | - T Akamizu
- Wakayama Medical University, Tokyo, Japan
| | - A Azumi
- Kobe Kaisei Hospital, Kobe, Japan
| | - M N Carruthers
- University of British Columbia, Vancouver, British Columbia, Canada
| | | | | | | | - H Goto
- Tokyo Medical University, Tokyo, Japan
| | - P A Hart
- The Ohio State University Medical College and The Ohio State University Wexner Medical Center, Columbus
| | - T Kamisawa
- Tokyo Metropolitan Komagome Hospital, Tokyo, Japan
| | - S Kawa
- Shinshu University, Matsumoto, Japan
| | - M Kawano
- Kanazawa University Graduate School of Medical Sciences and Kanazawa University Hospital, Kanazawa, Japan
| | - M H Kim
- University of Ulsan College of Medicine and Asan Medical Center, Ulsan, Republic of Korea
| | - Y Kodama
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Kubota
- Yokohama City University and Yokohama City University Hospital, Yokohama, Japan
| | - M M Lerch
- University of Greifswald Medical School, Greifswald, Germany
| | - M Löhr
- Karolinska Institutet, Stockholm, Sweden
| | - Y Masaki
- Kanazawa Medical University, Kanazawa, Japan
| | - S Matsui
- University of Toyama, Toyama, Japan
| | - T Mimori
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - S Nakamura
- Kyushu University and Kyushu University Dental Hospital, Fukuoka, Japan
| | - T Nakazawa
- Nagoya City University Graduate School of Medicine, Nagoya, Japan
| | - H Ohara
- Nagoya City University Graduate School of Medicine, Nagoya, Japan
| | - K Okazaki
- Kansai Medical University, Hirakata, Japan
| | - J H Ryu
- Mayo Clinic, Rochester, Minnesota
| | - T Saeki
- Nagaoka Red Cross Hospital, Nagaoka, Japan
| | - N Schleinitz
- Aix-Marseille Université, Assistance Publique Hôpitaux de Marseille, Marseille, France
| | - A Shimatsu
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | | | - H Takahashi
- Sapporo Medical University School of Medicine, Sapporo, Japan
| | - M Takahira
- Kanazawa University Graduate School of Medical Sciences and Kanazawa University Hospital, Kanazawa, Japan
| | - A Tanaka
- Teikyo University School of Medicine, Tokyo, Japan
| | | | - H Umehara
- Kanazawa Medical University, Kanazawa, Japan
| | - G J Webster
- University College London and University College London Hospitals, London, UK
| | | | - M Yamamoto
- Sapporo Medical University School of Medicine, Sapporo, Japan
| | - W Zhang
- Chinese Academy of Medical Sciences and Peking Union Medical College Hospital, Beijing, China
| | - T Chiba
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - J H Stone
- Massachusetts General Hospital, Boston
| | -
- Japanese Ministry of Health, Labor, and Welfare, Amgen, and Genetech
| |
Collapse
|
25
|
Osada S, Matsui S. 907 The significance of histopathological evaluation of pancreatic fibrosis to estimate pancreas cancer progression. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30414-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
26
|
Sasaki T, Kinoshita Y, Matsui S, Kakuta S, Yokota-Hashimoto H, Kinoshita K, Iwasaki Y, Kinoshita T, Yada T, Amano N, Kitamura T. N-methyl-d-aspartate receptor coagonist d-serine suppresses intake of high-preference food. Am J Physiol Regul Integr Comp Physiol 2015; 309:R561-75. [PMID: 26157056 DOI: 10.1152/ajpregu.00083.2015] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 07/07/2015] [Indexed: 12/20/2022]
Abstract
d-Serine is abundant in the forebrain and physiologically important for modulating excitatory glutamatergic neurotransmission as a coagonist of synaptic N-methyl-d-aspartate (NMDA) receptor. NMDA signaling has been implicated in the control of food intake. However, the role of d-serine on appetite regulation is unknown. To clarify the effects of d-serine on appetite, we investigated the effect of oral d-serine ingestion on food intake in three different feeding paradigms (one-food access, two-food choice, and refeeding after 24-h fasting) using three different strains of male mice (C57Bl/6J, BKS, and ICR). The effect of d-serine was also tested in leptin signaling-deficient db/db mice and sensory-deafferented (capsaicin-treated) mice. The expression of orexigenic neuropeptides [neuropeptide Y (Npy) and agouti-related protein (Agrp)] in the hypothalamus was compared in fast/refed experiments. Conditioned taste aversion for high-fat diet (HFD) was tested in the d-serine-treated mice. Under the one-food-access paradigm, some of the d-serine-treated mice showed starvation, but not when fed normal chow. HFD feeding with d-serine ingestion did not cause aversion. Under the two-food-choice paradigm, d-serine suppressed the intake of high-preference food but not normal chow. d-Serine also effectively suppressed HFD intake but not normal chow in db/db mice and sensory-deafferented mice. In addition, d-serine suppressed normal chow intake after 24-h fasting despite higher orexigenic gene expression in the hypothalamus. d-Serine failed to suppress HFD intake in the presence of L-701,324, the selective and full antagonist at the glycine-binding site of the NMDA receptor. Therefore, d-serine suppresses the intake of high-preference food through coagonism toward NMDA receptors.
Collapse
Affiliation(s)
- Tsutomu Sasaki
- Laboratory of Metabolic Signal, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma, Japan;
| | - Yoshihiro Kinoshita
- Department of Psychiatry, School of Medicine, Shinshu University, Matsumoto, Nagano, Japan
| | - Sho Matsui
- Laboratory of Metabolic Signal, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma, Japan
| | - Shigeru Kakuta
- Research Center for Human and Environmental Sciences, Shinshu University, Matsumoto, Nagano, Japan
| | - Hiromi Yokota-Hashimoto
- Laboratory of Metabolic Signal, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma, Japan
| | - Kuni Kinoshita
- Department of Psychiatry, School of Medicine, Shinshu University, Matsumoto, Nagano, Japan
| | - Yusaku Iwasaki
- Division of Integrated Physiology, Department of Physiology, Jichi Medical University School of Medicine, Shimotsuke, Tochigi, Japan; and
| | - Toshio Kinoshita
- Department of Analytical Chemistry, School of Pharmacy, Kitasato University, Tokyo, Tokyo, Japan
| | - Toshihiko Yada
- Division of Integrated Physiology, Department of Physiology, Jichi Medical University School of Medicine, Shimotsuke, Tochigi, Japan; and
| | - Naoji Amano
- Department of Psychiatry, School of Medicine, Shinshu University, Matsumoto, Nagano, Japan
| | - Tadahiro Kitamura
- Laboratory of Metabolic Signal, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma, Japan
| |
Collapse
|
27
|
Mizushima I, Yamamoto M, Inoue D, Yamada K, Ubara Y, Matsui S, Nakashima H, Nishi S, Kawano M. SAT0529 Impact of Pre-Treatment Renal Insufficiency on Renal Cortical Atrophy After Corticosteroid Therapy in IgG4-Related Kidney Disease: A Retrospective Multicenter Study. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4632] [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: 11/03/2022]
|
28
|
Matsui S, Yamane T, Kobayashi-Hattori K, Oishi Y. Calcitonin gene-related peptide regulates mitogen-activated protein kinase pathway to decrease transforming growth factor β1-induced hepatic plasminogen activator inhibitor-1 mRNA expression in HepG2 cells. Biosci Biotechnol Biochem 2015; 78:787-90. [PMID: 25035980 DOI: 10.1080/09168451.2014.910096] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Transforming growth factor (TGF) β1-induced plasminogen activator inhibitor (PAI)-1 is one of factors associated with the development of hepatic fibrosis. Calcitonin gene-related peptide (CGRP) shows hepatoprotective effect during hepatic injuries, including fibrosis. However, the effects of CGRP on PAI-1 expression induced by TGFβ1 are unknown. In this study, we investigated the effect of CGRP on TGFβ1-induced PAI-1 expression and its regulatory mechanisms in HepG2 cells. CGRP inhibited TGFβ1-induced PAI-1 expression. H89, a protein kinase A inhibitor, abolished the inhibition of TGFβ1-induced PAI-1 expression by CGRP. TGFβ1 activated mitogen-activated protein kinase (MAPK), including extracellular signal-regulated kinase, c-jun NH2-terminal kinase, and p38, and this activation was abolished by CGRP. These results show that the CGRP-induced cAMP/PKA activation suppresses activation of MAPK induced by TGFβ1, leading to decreased PAI-1 expression in HepG2 cells.
Collapse
Affiliation(s)
- Sho Matsui
- a Faculty of Applied Bioscience, Department of Nutritional Science , Tokyo University of Agriculture , Tokyo , Japan
| | | | | | | |
Collapse
|
29
|
Tsurugi T, Matsui S, Nakajima H, Nishii N, Honda T, Kaneko Y. Various mechanisms and clinical phenotypes in electrical short circuits of high-voltage devices: report of four cases and review of the literature. Europace 2015; 17:909-14. [DOI: 10.1093/europace/euv022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 01/27/2015] [Indexed: 11/13/2022] Open
|
30
|
Sugimoto T, Matsumoto T, Hosoi T, Miki T, Gorai I, Yoshikawa H, Tanaka Y, Tanaka S, Fukunaga M, Sone T, Nakano T, Ito M, Matsui S, Yoneda T, Takami H, Watanabe K, Osakabe T, Okubo N, Shiraki M, Nakamura T. Three-year denosumab treatment in postmenopausal Japanese women and men with osteoporosis: results from a 1-year open-label extension of the Denosumab Fracture Intervention Randomized Placebo Controlled Trial (DIRECT). Osteoporos Int 2015; 26:765-74. [PMID: 25403903 DOI: 10.1007/s00198-014-2964-2] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 10/31/2014] [Indexed: 12/31/2022]
Abstract
SUMMARY A 12-month extension phase of DIRECT in Japanese subjects with osteoporosis showed that total 3 years of denosumab treatment in Japanese postmenopausal women and men with osteoporosis was associated with low fracture rates, persistent bone turnover marker (BTM) reductions, continuous bone mineral density (BMD) increases, and a favorable overall benefit/risk profile. INTRODUCTION The DIRECT trial demonstrated that 2 years of treatment with denosumab 60 mg subcutaneously every 6 months significantly reduced the incidence of vertebral fracture compared to placebo in Japanese postmenopausal women and men with osteoporosis. The purpose of this study is to evaluate the efficacy and safety of denosumab treatment for up to 3 years. METHODS This study includes a 2-year randomized, double-blind, placebo-controlled phase and a 1-year open-label extension phase in which all subjects received denosumab. The data correspond to 3 years of denosumab treatment in subjects who received denosumab (long-term group) and 1 year of denosumab treatment in subjects who received placebo (cross-over group) in the double-blind phase. RESULTS Eight hundred and ten subjects who completed the double-blind phase enrolled into the extension phase, and 775 subjects completed the study. All subjects received denosumab with daily supplements of calcium and vitamin D. The cumulative 36-month incidences of new or worsening vertebral fractures and new vertebral fractures were 3.8 and 2.5 %, respectively, in the long-term group. In this group, the BMD continued to increase, and the reduction in BTMs was maintained. In the cross-over group, comparable BMD increases and BTMs reductions to those of in their first year of the long-term group were confirmed. Adverse events did not show a notable increase with long-term denosumab administration. One event of osteonecrosis of the jaw occurred in the cross-over group. CONCLUSIONS Three-year denosumab treatment in Japanese subjects with osteoporosis showed a favorable benefit/risk profile.
Collapse
Affiliation(s)
- T Sugimoto
- Shimane University Faculty of Medicine, Izumo, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Sasaki T, Kuroko M, Sekine S, Matsui S, Kikuchi O, Susanti VY, Kobayashi M, Tanaka Y, Yuasa T, Kitamura T. Overexpression of insulin receptor partially improves obese and diabetic phenotypes in db/db mice. Endocr J 2015; 62:787-96. [PMID: 26096452 DOI: 10.1507/endocrj.ej15-0255] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is one of the major health concern among the world. Several treatment options for T2DM are in clinical use, including injecting insulin, promoting insulin secretion by insulin secretagogues, and improving insulin sensitivity by insulin sensitizers. However, increasing the amount of insulin receptor in insulin-target tissues has not been explored. In order to test the efficacy of insulin receptor overexpression for improving glucose control, we established a transgenic mouse line expressing human insulin receptor (INSR). We analyzed, growth, energy balance, and glucose control of INSR-overexpressing db/db mice (INSR; db/db), which we produced by mating INSR transgenic mice with db/db mice, a genetic model of obesity due to insufficient leptin signaling. Compared to db/db mice, INSR; db/db mice were rescued from hyperphagia and obesity, leading to improved blood glucose levels. Unexpectedly, however, INSR; db/db mice presented with stunted growth, accompanied by decreased plasma levels of free IGF1 and IGFBP-3, indicating the down-regulation of GH/IGF1 axis. These phenotypes were observed in INSR; db/db mice but not in INSR littermates. Meanwhile, bone defects observed in db/db male mice were not rescued. Moreover, improved blood glucose was not accompanied by improved insulin sensitivity. Therefore, overexpression of insulin receptor improves obese and diabetic phenotypes in db/db mice, with consequences on growth.
Collapse
Affiliation(s)
- Tsutomu Sasaki
- Laboratory of Metabolic Signal, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi 371-8512, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Tani A, Yamamoto S, Maegawa M, Kunimi K, Matsui S, Keyama K, Kato T, Uemura H, Kuwahara A, Matsuzaki T, Yasui T, Kamada M, Soeki T, Sata M, Irahara M. Arterial stiffness is increased in young women with endometriosis. J OBSTET GYNAECOL 2014; 35:711-5. [PMID: 25543526 DOI: 10.3109/01443615.2014.992871] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Endometriosis is a chronic gynaecological disorder that is accompanied by inflammation and oxidative stress. Atherosclerosis has a long subclinical progression in arteries of children and young adults decades before overt clinical manifestations of the disease. In this study, we determined arterial stiffness by measuring brachial-ankle pulse wave velocity (baPWV) in women with endometriosis to assess the presence of subclinical atherosclerosis. We also measured markers of inflammation and oxidative stress in women with endometriosis. baPWV in women with endometriosis aged over 30 years was significantly higher than that in women without endometriosis aged over 30 years (p < 0.05), but not in women aged less than 30. Serum high-sensitivity C-reactive protein level in women with endometriosis was significantly higher than that in controls (p < 0.05). Young women with endometriosis show significantly increased arterial stiffness, suggesting that women with endometriosis need to be cautious of the future onset of atherosclerosis.
Collapse
Affiliation(s)
- A Tani
- a Department of Obstetrics and Gynecology , Institute of Health Biosciences, The University of Tokushima Graduate School , Tokushima , Japan
| | - S Yamamoto
- a Department of Obstetrics and Gynecology , Institute of Health Biosciences, The University of Tokushima Graduate School , Tokushima , Japan
| | - M Maegawa
- b Department of Obstetrics and Gynecology , Tokushima Prefectural Central Hospital , Tokushima , Japan
| | - K Kunimi
- a Department of Obstetrics and Gynecology , Institute of Health Biosciences, The University of Tokushima Graduate School , Tokushima , Japan
| | - S Matsui
- a Department of Obstetrics and Gynecology , Institute of Health Biosciences, The University of Tokushima Graduate School , Tokushima , Japan
| | - K Keyama
- a Department of Obstetrics and Gynecology , Institute of Health Biosciences, The University of Tokushima Graduate School , Tokushima , Japan
| | - T Kato
- a Department of Obstetrics and Gynecology , Institute of Health Biosciences, The University of Tokushima Graduate School , Tokushima , Japan
| | - H Uemura
- c Department of Preventive Medicine , Institute of Health Biosciences, The University of Tokushima Graduate School , Tokushima , Japan
| | - A Kuwahara
- a Department of Obstetrics and Gynecology , Institute of Health Biosciences, The University of Tokushima Graduate School , Tokushima , Japan
| | - T Matsuzaki
- a Department of Obstetrics and Gynecology , Institute of Health Biosciences, The University of Tokushima Graduate School , Tokushima , Japan
| | - T Yasui
- d Department of Reproductive Technology , Institute of Health Biosciences, The University of Tokushima Graduate School , Tokushima , Japan
| | - M Kamada
- e Department of Obstetrics and Gynecology , Shikoku Central Hospital of the Mutual Aid Association of Public School Teachers , Ehime , Japan
| | - T Soeki
- f Department of Cardiovascular Medicine , Institute of Health Bioscience, The University of Tokushima Graduate School , Tokushima , Japan
| | - M Sata
- f Department of Cardiovascular Medicine , Institute of Health Bioscience, The University of Tokushima Graduate School , Tokushima , Japan
| | - M Irahara
- a Department of Obstetrics and Gynecology , Institute of Health Biosciences, The University of Tokushima Graduate School , Tokushima , Japan
| |
Collapse
|
33
|
Tani A, Yasui T, Kasai K, Keyama K, Matsui S, Kato T, Irahara M. Different circulating levels of monocyte chemoattractant protein-1 and interleukin-8 during the menopausal transition. J Reprod Immunol 2014. [DOI: 10.1016/j.jri.2014.09.036] [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: 10/24/2022]
|
34
|
Tani A, Kato T, Keyama K, Matsui S, Irahara M. Accidental Findings of Minimal Endometriosis during Laparoscopic Surgery: A Retrospective Study. J Minim Invasive Gynecol 2014. [DOI: 10.1016/j.jmig.2014.08.456] [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: 10/24/2022]
|
35
|
Susanti VY, Sasaki T, Yokota-Hashimoto H, Matsui S, Lee YS, Kikuchi O, Shimpuku M, Kim HJ, Kobayashi M, Kitamura T. Sirt1 rescues the obesity induced by insulin-resistant constitutively-nuclear FoxO1 in POMC neurons of male mice. Obesity (Silver Spring) 2014; 22:2115-9. [PMID: 25044690 PMCID: PMC4265245 DOI: 10.1002/oby.20838] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 06/27/2014] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The hypothalamus is the brain center that controls the energy balance. Anorexigenic proopiomelanocortin (POMC) neurons and orexigenic AgRP neurons in the arcuate nucleus of the hypothalamus plays critical roles in energy balance regulation. FoxO1 is a transcription factor regulated by insulin signaling that is deacetylated by Sirt1, a nicotinamide adenine dinucleotide- (NAD(+) -) dependent deacetylase. Overexpression of insulin-resistant constitutively-nuclear FoxO1 (CN-FoxO1) in POMC neurons leads to obesity, whereas Sirt1 overexpression in POMC neurons leads to leanness. Whether overexpression of Sirt1 in POMC neurons could rescue the obesity caused by insulin-resistant CN-FoxO1 was tested here. METHODS POMC neuron-specific CN-FoxO1/Sirt1 double-KI (DKI) mice were analyzed. RESULTS The obese phenotype of CN-FoxO1 KI mice was rescued in male DKI mice. Reduced O2 consumption, increased adiposity, and fewer POMC neurons observed in CN-FoxO1 mice were rescued in male DKI mice without affecting food intake and locomotor activity. Sirt1 overexpression decreased FoxO1 acetylation and protein levels without affecting its nuclear localization in mouse embryonic fibroblasts and hypothalamic N41 cells. CONCLUSIONS Sirt1 rescues the obesity induced by insulin-resistant CN-FoxO1 in POMC neurons of male mice by decreasing FoxO1 protein through deacetylation. Sirt1 ameliorates obesity caused by a genetic model of central insulin resistance.
Collapse
Affiliation(s)
- Vina Yanti Susanti
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma UniversityMaebashi, Gunma, Japan
| | - Tsutomu Sasaki
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma UniversityMaebashi, Gunma, Japan
| | - Hiromi Yokota-Hashimoto
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma UniversityMaebashi, Gunma, Japan
| | - Sho Matsui
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma UniversityMaebashi, Gunma, Japan
| | - Yong-Soo Lee
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma UniversityMaebashi, Gunma, Japan
| | - Osamu Kikuchi
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma UniversityMaebashi, Gunma, Japan
| | - Mayumi Shimpuku
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma UniversityMaebashi, Gunma, Japan
| | - Hye-Jin Kim
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma UniversityMaebashi, Gunma, Japan
| | - Masaki Kobayashi
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma UniversityMaebashi, Gunma, Japan
| | - Tadahiro Kitamura
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma UniversityMaebashi, Gunma, Japan
| |
Collapse
|
36
|
Ishikawa T, Uetake H, Murotani K, Kobunai T, Ishiguro M, Matsui S, Sugihara K. Correlation Between Dna Copy Number and Clinicopathological Features: Biomarker Search Using Genome-Wide Analysis of Dna Copy Number Alterations in a Phase III Study of Postoperative Adjuvant Chemotherapy for Stage III Colon Cancer (Acts-Cc Trial). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu333.73] [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
|
37
|
Matsui S, Yamane T, Kobayashi-Hattori K, Oishi Y. Ultraviolet B irradiation reduces the expression of adiponectin in ovarial adipose tissues through endocrine actions of calcitonin gene-related peptide-induced serum amyloid A. PLoS One 2014; 9:e98040. [PMID: 24845824 PMCID: PMC4028234 DOI: 10.1371/journal.pone.0098040] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2013] [Accepted: 04/28/2014] [Indexed: 12/15/2022] Open
Abstract
Ultraviolet (UV) B irradiation decreases blood adiponectin levels, but the mechanism is not well understood. This study investigated how UVB irradiation reduces adiponectin expression in ovarial adipose tissues. Female Hos:HR-1 hairless mice were exposed to UVB (1.6 J/cm2) irradiation and were killed 24 h later. UVB irradiation decreased the adiponectin protein level in the serum and the adiponectin mRNA level in ovarial adipose tissues. UVB irradiation also decreased the mRNA levels of peroxisome proliferator-activated receptor (PPAR) γ, CCAAT/enhancer binding protein (C/EBP) α, C/EBPβ, and fatty acid binding protein 4 (aP2) in ovarial adipose tissues. In contrast, UVB irradiation increased the mRNA levels of interleukin (IL)-6 and monocyte chemoattractant protein (MCP)-1 in ovarial adipose tissues. In the serum and liver, the levels of serum amyloid A (SAA), involved in PPARγ, C/EBPα, C/EBPβ, aP2, IL-6, and MCP-1 regulation, increased after UVB irradiation. The SAA gene is regulated by IL-1β, IL-6, and tumor necrosis factor-α, but only IL-6 expression increased in the liver after UVB irradiation. Additionally, in the liver, hypothalamus, and epidermis, UVB irradiation increased the expression of calcitonin gene-related peptide (CGRP), which upregulates SAA in the liver. Collectively, our results suggest that the CGRP signal induced by skin exposure to UVB transfers to the liver, possibly through the brain, and increases SAA production via IL-6 in the liver. In turn, serum SAA acts in an endocrine manner to decreases the serum adiponectin level by downregulating factors that regulate adiponectin expression in adipose tissues.
Collapse
Affiliation(s)
- Sho Matsui
- Department of Nutritional Science, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, Japan
| | - Takumi Yamane
- Department of Nutritional Science, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, Japan
| | - Kazuo Kobayashi-Hattori
- Department of Nutritional Science, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, Japan
| | - Yuichi Oishi
- Department of Nutritional Science, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, Japan
- * E-mail:
| |
Collapse
|
38
|
Matsui S, Yasui T, Tani A, Kato T, Uemura H, Kuwahara A, Matsuzaki T, Arisawa K, Irahara M. Effect of ultra-low-dose estradiol and dydrogesterone on arterial stiffness in postmenopausal women. Climacteric 2013; 17:191-6. [DOI: 10.3109/13697137.2013.856399] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
39
|
Matsui S, Yasui T, Tani A, Kato T, Kunimi K, Uemura H, Kuwahara A, Matsuzaki T, Irahara M. Difference in the ratio of high-molecular weight (HMW) to total adiponectin and HMW adiponectin in late post-menopausal women. J Endocrinol Invest 2013; 36:982-5. [PMID: 23765418 DOI: 10.3275/9001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
OBJECTIVE High-molecular weight (HMW) isoform level and HMW ratio have been shown to be better predictors of insulin sensitivity and metabolic syndrome than total adiponectin level.We examined the changes in circulating levels of HMW adiponectin and ratios of HMW to total adiponectin in women during the menopausal transition. METHODS We conducted a cross-sectional study in 217 healthy women and divided them into 4 stages: 58 women in pre-menopausal, 69 women in perimenopausal, 62 women in early post-menopausal and 28 women in late post-menopausal phase. Serum levels of total adiponectin and HMW adiponectin were measured by an enzyme-linked immunosorbent assay. RESULTS In late post-menopausal women, HMW adiponectin level was significantly higher than that in peri-menopausal women and the HMW to total adiponectin ratio was significantly lower than that in early post-menopausal women. In peri-menopausal women, HMW adiponectin level was significantly lower than that in pre-menopausal women and HMW to total adiponectin ratio was significantly lower than the ratios in pre-menopausal and early post-menopausal women. CONCLUSION The ratio of HMW to total adiponectin is low in late post-menopausal women, though both levels of total and HMW adiponectin were high after menopause in our cross-sectional study.
Collapse
Affiliation(s)
- S Matsui
- Department of Obstetrics and Gynecology, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15 Kuramoto, Tokushima 770-8503, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Yamane T, Nakagami G, Yoshino S, Muramatsu A, Matsui S, Oishi Y, Kanazawa T, Minematsu T, Sanada H. Hydrocellular foam dressing promotes wound healing along with increases in hyaluronan synthase 3 and PPARα gene expression in epidermis. PLoS One 2013; 8:e73988. [PMID: 23991211 PMCID: PMC3750004 DOI: 10.1371/journal.pone.0073988] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Accepted: 07/25/2013] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Hydrocellular foam dressing, modern wound dressing, induces moist wound environment and promotes wound healing: however, the regulatory mechanisms responsible for these effects are poorly understood. This study was aimed to reveal the effect of hydrocellular foam dressing on hyaluronan, which has been shown to have positive effects on wound healing, and examined its regulatory mechanisms in rat skin. METHODOLOGY/PRINCIPAL FINDINGS We created two full-thickness wounds on the dorsolateral skin of rats. Each wound was covered with either a hydrocellular foam dressing or a film dressing and hyaluronan levels in the periwound skin was measured. We also investigated the mechanism by which the hydrocellular foam dressing regulates hyaluronan production by measuring the gene expression of hyaluronan synthase 3 (Has3), peroxisome proliferator-activated receptor α (PPARα), and CD44. Hydrocellular foam dressing promoted wound healing and upregulated hyaluronan synthesis, along with an increase in the mRNA levels of Has3, which plays a primary role in hyaluronan synthesis in epidermis. In addition, hydrocellular foam dressing enhanced the mRNA levels of PPARα, which upregulates Has3 gene expression, and the major hyaluronan receptor CD44. CONCLUSIONS/SIGNIFICANCE These findings suggests that hydrocellular foam dressing may be beneficial for wound healing along with increases in hyaluronan synthase 3 and PPARα gene expression in epidermis. We believe that the present study would contribute to the elucidation of the mechanisms underlying the effects of hydrocellular foam dressing-induced moist environment on wound healing and practice evidence-based wound care.
Collapse
Affiliation(s)
- Takumi Yamane
- Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan
- Department of Nutritional Sciences, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, Japan
| | - Gojiro Nakagami
- Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan
| | - Sawako Yoshino
- Department of Nutritional Sciences, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, Japan
| | - Aimi Muramatsu
- Department of Nutritional Sciences, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, Japan
| | - Sho Matsui
- Department of Nutritional Sciences, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, Japan
| | - Yuichi Oishi
- Department of Nutritional Sciences, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, Japan
| | - Toshiki Kanazawa
- Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan
| | - Takeo Minematsu
- Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan
| | - Hiromi Sanada
- Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan
| |
Collapse
|
41
|
Matsui S, Yamane T, Takita T, Oishi Y, Kobayashi-Hattori K. The hypocholesterolemic activity of Momordica charantia fruit is mediated by the altered cholesterol- and bile acid–regulating gene expression in rat liver. Nutr Res 2013; 33:580-5. [DOI: 10.1016/j.nutres.2013.05.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 04/28/2013] [Accepted: 05/02/2013] [Indexed: 11/16/2022]
|
42
|
Hanafusa T, Matsui S, Murota H, Tani M, Igawa K, Katayama I. Increased frequency of skin-infiltrating FoxP3+ regulatory T cells as a diagnostic indicator of severe atopic dermatitis from cutaneous T cell lymphoma. Clin Exp Immunol 2013; 172:507-12. [PMID: 23600840 DOI: 10.1111/cei.12073] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/15/2013] [Indexed: 11/27/2022] Open
Abstract
Differential diagnosis of cutaneous T cell lymphoma (CTCL) and severe atopic dermatitis (AD) is often difficult because of the similarity in their skin manifestations. However, such differentiation is extremely important because of the differences in remedy and prognosis. The aim of this study was to investigate new, helpful diagnostic aids for distinguishing CTCL from AD. The frequency of forkhead box protein 3(+) (FoxP3(+)) regulatory T cells (T(regs)) in cutaneous lesions was evaluated among the three populations. Serum-soluble interleukin-2 receptor (sIL-2R), immunoglobulin (Ig)E-radioimmunosorbent test, lactate dehydrogenase (LDH) and blood eosinophil count were measured in 11 CTCL patients (including three CTCL patients misdiagnosed previously with intractable AD), 10 adult AD patients and nine psoriasis patients. The frequency of T(regs) was increased significantly in cutaneous lesions of AD compared with those of CTCL. Serum IgE and LDH levels were also elevated significantly in AD compared with CTCL, whereas there were no significant differences in serum sIL-2R levels between CTCL and AD. In the three CTCL patients who were misdiagnosed with intractable AD, IgE and LDH levels were lower than in AD patients, whereas serum sIL-2R levels were as high as in AD patients and higher than in the other eight CTCL patients. The higher frequency of T(regs) in the cutaneous lesions of patients with AD than in those with CTCL and higher serum IgE and LDH levels in patients with AD than in those with CTCL might be helpful reference values for the differential diagnosis of these two diseases.
Collapse
Affiliation(s)
- T Hanafusa
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita city, Osaka, Japan
| | | | | | | | | | | |
Collapse
|
43
|
Matsui S, Kitabatake K, Meguro HTAH. FLUOROMETRIC DETERMINATION OF CYSTEINE IN BEER BY HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY WITH PRECOLUMN DERIVATISATION. Journal of the Institute of Brewing 2013. [DOI: 10.1002/j.2050-0416.1984.tb04227.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
44
|
Maruyama K, Shiozaki H, Shimaya K, Inoue M, Iwazawa T, Matsui S, Mori T. P53 expression in esophageal dysplasia - a possible biomarker for carcinogenesis of esophageal squamous-cell carcinoma. Int J Oncol 2012; 4:1061-5. [PMID: 21567020 DOI: 10.3892/ijo.4.5.1061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The tumor suppressor gene product p53 has been detected in a high percentage of esophageal squamous cell carcinoma. To evaluate the role of this protein in carcinogenesis, we examined the p53 overexpression both in esophageal dysplasia and in esophageal squamous cell carcinoma in the same patients. Using anti-p53 antibodies pAb1801 and CM-1, we analyzed immunohistochemically 36 dysplastic lesions from 36 patients with esophageal cancer. Nuclear p53 was detected in 14 of 36 dysplasias (39%). From mild to moderate to severe dysplasia, p53 positivity showed tendency to increase in number. Seventeen of the 36 squamous cell carcinomas showed p53 expression (47%). There was a significant concurrent p53 expression in esophageal dysplasia and its related squamous cell carcinoma (p=0.00345). These results indicate that p53 mutation is closely associated with the initiation of this cancer.
Collapse
|
45
|
Katakami N, Atagi S, Yoshioka H, Fukuoka M, Ogiwara A, Imai M, Ueda M, Matsui S. Nested Case Control Study of Proteomic Biomarkers for Interstitial Lung Disease in Japanese Patients With Non-Small Cell Lung Cancer Treated With Erlotinib. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32800-3] [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] Open
|
46
|
Taki H, Matsui S, Shinoda K, Tobe K. Comment on: Arthropathy with infiltrate IgG4-positive plasma cells in synovium. Rheumatology (Oxford) 2012; 51:1922-4; author reply 1924-5. [DOI: 10.1093/rheumatology/kes195] [Citation(s) in RCA: 4] [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: 11/14/2022] Open
|
47
|
Leung F, Cheung R, Fan R, Fischer L, Friedland S, Ho S, Hsieh Y, Hung I, Li M, Matsui S, McQuaid K, Ohning G, Ojuri A, Sato T, Shergill A, Shoham M, Simons T, Walter M, Yen A. The water exchange method for colonoscopy-effect of coaching. J Interv Gastroenterol 2012; 2:122-125. [PMID: 23805391 DOI: 10.4161/jig.23732] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Revised: 06/05/2012] [Accepted: 06/07/2012] [Indexed: 02/07/2023]
Abstract
The growing popularity of water immersion is supported by its long history as an adjunct to air insufflation; after facilitating colonoscope passage, the infused water is conveniently removed during withdrawal. Water exchange, a modification of water immersion to minimize discomfort in scheduled unsedated patients in the U.S. is new. Even though it may be superior in reducing pain and increasing adenoma detection, the paradigm shift to complete exclusion of air during insertion necessitates removal of infused water containing residual feces, a step often perceived as laborious and time-consuming. The nuances are the efficient steps to remove infused water predominantly during insertion to maintain minimal distension and deliver salvage cleansing. Mastery of the novel maneuvers with practice returns insertion time towards baseline. In this observational study the impact of direct verbal coaching on the primary outcome of intention-to-treat cecal intubation was assessed. The results showed that 14 of 19 (74%) experienced colonoscopists achieved 100% intention-to-treat cecal intubation. Initiation of the examination with water exchange did not preclude completion when conversion to the more familiar air insufflation method was deemed necessary to achieve cecal intubation (total 98%). The overall intention-to-treat cecal intubation rate was 88%, 90% in male and 87% in female. Only 2.7% of bowel preparation was rated as poor during withdrawal. The mean volume of water infused and cecal intubation time was 1558 ml and 18 min, respectively. Direct coaching appears to facilitate understanding of the nuances of the water exchange method. Studies of individual learning curves are necessary.
Collapse
Affiliation(s)
- Fw Leung
- Gastroenterology, Sepulveda ACC, VAGLAHS, North Hills, CA, United States ; Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Osada S, Matsui S, Okumura N, Nonaka K, Takahashi T, Yamaguchi K, Yoshida K. 724 Expression of Met in metastatic liver tumour from colorectal cancer. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)71521-4] [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: 11/24/2022] Open
|
49
|
Terashima M, Saze Z, Hosotani R, Takahashi M, Takagane A, Hachiya O, Koeda K, Matsui S, Ohashi W, Gotoh M. Results of a phase II multicenter study of neoadjuvant S-1 and irinotecan in patients with locally advanced gastric cancer. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.4122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
50
|
Harada H, Matsui S, Dong NT, Shimizu Y, Fujii S. Incremental sanitation improvement strategy: comparison of options for Hanoi, Vietnam. Water Sci Technol 2010; 62:2225-2234. [PMID: 21076207 DOI: 10.2166/wst.2010.508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Urban sanitation issues should be tackled strategically, and may be addressed effectively when sewage development is pursued in conjunction with complementary sanitation measures. Five sanitation improvement scenarios employing sewage, night-soil collection-and-treatment (NSCT) system, and/or septic-tank improvement by annual dislodging were analyzed from the perspective of COD loads, total nitrogen loads, and cost under the conditions found in Hanoi, Vietnam. Compared to the development of sewage alone, the scenario of developing NSCT systems in a complementary manner with sewage development was estimated to be the most effective for a rapid decrease of both COD and total nitrogen loads. However, it may be difficult in some cases to replace ordinary water-flush toilet by the micro-flush toilet that are used in NSCT systems. In this case, the scenario employing septic-tank improvement in conjunction with sewage development may be effective for a rapid decrease of COD in locations where septic tanks are widely used under poor maintenance conditions and nitrogen pollution is not serious compared to COD. It was calculated that the two scenarios above would respectively require cost increases of 16 and 22% over the sewage development scenario.
Collapse
Affiliation(s)
- H Harada
- Graduate School of Global Environmental Studies, Kyoto University, Yoshida-honmachi, Sakyo, Kyoto 606-8501, Japan E-mail:
| | | | | | | | | |
Collapse
|