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Quintero J, Slevin J, Koehl L, Guduru Z, Yamasaki T, Gurwell J, Hines T, Welleford A, Granholm-Bentley A, Schmitt F, Gerhardt G, van Horne C. DBS Plus: a clinical trial platform for combining delivery of investigational therapeutics with deep brain stimulation surgery in patients with parkinson’s disease. Cytotherapy 2021. [DOI: 10.1016/s1465324921004801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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2
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Eda M, Yamasaki T, Izumi H, Tomita N, Konno S, Konno M, Murakami H, Sato F. Cryptic species in a Vulnerable seabird: shorttailed albatross consists of two species. ENDANGER SPECIES RES 2020. [DOI: 10.3354/esr01078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The occurrence of cryptic species within a threatened taxon is rare, but where they do occur, understanding species boundaries is essential for planning an effective conservation strategy. The short-tailed albatross Phoebastria albatrus is a Vulnerable seabird that mainly breeds on Torishima and the Senkaku Islands in the western North Pacific. Although it has been tacitly regarded as a single management unit with 2 breeding sites, the species is known to comprise 2 genetically separated populations (Senkaku-type and Torishima-type). However, morphological examination of birds from both populations has not been conducted owing to the difficulty in accessing the Senkaku Islands. In this study, we examined the morphological differences between immigrants from the Senkaku Islands to Torishima (Senkaku-type) and native birds on Torishima (Torishima-type) and found significant differences in morphological characteristics between the 2 bird types. In general, Torishima-type birds were larger than Senkaku-type birds, whereas Senkaku-type birds had relatively longer beaks. Based on the morphological differences found in this study as well as genetic and ecological differences revealed in previous studies, we believe that Senkaku- and Torishima-type birds should be classified as different cryptic species. To the best of our knowledge, this is the first case of cryptic species being identified in a threatened avian species.
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Affiliation(s)
- M Eda
- Hokkaido University Museum, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo 060-0810, Japan
| | - T Yamasaki
- Division of Natural History, Yamashina Institute for Ornithology, Konoyama 115, Abiko 270-1145, Japan
| | - H Izumi
- Hokkaido University Museum, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo 060-0810, Japan
| | - N Tomita
- Division of Avian Conservation, Yamashina Institute for Ornithology, Konoyama 115, Abiko 270-1145, Japan
| | - S Konno
- Division of Avian Conservation, Yamashina Institute for Ornithology, Konoyama 115, Abiko 270-1145, Japan
| | - M Konno
- Division of Avian Conservation, Yamashina Institute for Ornithology, Konoyama 115, Abiko 270-1145, Japan
| | - H Murakami
- Division of Avian Conservation, Yamashina Institute for Ornithology, Konoyama 115, Abiko 270-1145, Japan
| | - F Sato
- Division of Avian Conservation, Yamashina Institute for Ornithology, Konoyama 115, Abiko 270-1145, Japan
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Yamasaki T, Hattori T, Kakita K, Oota K, Miyai N, Nakamura R, Sawanishi T, Kinoshita N. Quantitative analysis of the isolation area after larger-size laser balloon ablation. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The visually guided laser balloon ablation is a balloon-based catheter ablation technology used for atrial fibrillation (AF) ablation in recent years. This balloon catheter consists of a compliant balloon that has the capability of real-time endoscopic visualization of the targeted pulmonary vein (PV). The sizeable balloon is usually inflated to obtain optimal PV occlusion. The isolation area after laser balloon (LB) ablation was reported to be smaller than that after cryoballoon ablation. However, when LB is inflated with its maximum pressure, it can visualize wide-area PV antrum. Thereby, we suspected that larger-size LB can create wider isolation area.
Purpose
The aim of this study is to quantitatively evaluate the isolation area after LB ablation at the size larger than appropriate size for ablation in the pulmonary vein carina region.
Methods
We assessed 66 patients with AF who underwent LB ablation at the larger inflation size in our hospital during the period from July 2018 to July 2019. After LB ablation, we created voltage maps with a circular mapping catheter and calculated isolation areas with CARTO system.
Results
Figure shows a larger LB with its maximum pressure. PV antrum isolation was extended to the posterior wall in all patients. The left- and right-sided pulmonary vein antrum isolation area were 15.1±3.9 and 19.4±4.3 cm2, respectively.
Conclusion
LB at the larger inflation size with its maximum pressure can isolate wider-area circumferential PV antrum than previously reported. This method may be a new way of pulmonary vein antrum isolation.
Left atrial voltage mapping after PVI.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- T Yamasaki
- Takeda Hospital, Cardiac Arrhythmia, Kyoto, Japan
| | - T Hattori
- Takeda Hospital, Cardiac Arrhythmia, Kyoto, Japan
| | - K Kakita
- Takeda Hospital, Cardiac Arrhythmia, Kyoto, Japan
| | - K Oota
- Takeda Hospital, Cardiology, Kyoto, Japan
| | - N Miyai
- Takeda Hospital, Cardiology, Kyoto, Japan
| | - R Nakamura
- Takeda Hospital, Cardiology, Kyoto, Japan
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4
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Slevin J, Quintero J, Gurwell J, Guduru Z, Yamasaki T, Koehl L, Hines T, El Seblani N, Gerhardt G, van Horne C. Determining the safety and feasibility of unilateral cell therapy delivery to the substantia nigra for the goal of disease modification. Parkinsonism Relat Disord 2020. [DOI: 10.1016/j.parkreldis.2020.06.077] [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: 10/22/2022]
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5
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Nakao Y, Koshimura M, Yamasaki T, Ohtubo Y. Cell-type-independent expression of inwardly rectifying potassium currents in mouse fungiform taste bud cells. Physiol Res 2020; 69:501-510. [PMID: 32469236 DOI: 10.33549/physiolres.934331] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Inwardly rectifying potassium (Kir) channels play key roles in functions, including maintaining the resting membrane potential and regulating the action potential duration in excitable cells. Using in situ whole-cell recordings, we investigated Kir currents in mouse fungiform taste bud cells (TBCs) and immunologically identified the cell types (type I-III) expressing these currents. We demonstrated that Kir currents occur in a cell-type-independent manner. The activation potentials we measured were -80 to -90 mV, and the magnitude of the currents increased as the membrane potentials decreased, irrespective of the cell types. The maximum current densities at -120 mV showed no significant differences among cell types (p>0.05, one-way ANOVA). The density of Kir currents was not correlated with the density of either transient inward currents or outwardly rectifying currents, although there was significant correlation between transient inward and outwardly rectifying current densities (p<0.05, test for no correlation). RT-PCR studies employing total RNA extracted from peeled lingual epithelia detected mRNAs for Kir1, Kir2, Kir4, Kir6, and Kir7 families. These findings indicate that TBCs express several types of Kir channels functionally, which may contribute to regulation of the resting membrane potential and signal transduction of taste.
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Affiliation(s)
- Y Nakao
- Department of Human Intelligence Systems, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Kitakyushu, Japan.
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6
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Ohe K, Tanaka T, Horita Y, Harada Y, Yamasaki T, Abe I, Tanabe M, Nomiyama T, Kobayashi K, Enjoji M, Yanase T. Circular IRE-type RNAs of the NR5A1 gene are formed in adrenocortical cells. Biochem Biophys Res Commun 2019; 512:1-6. [PMID: 30853179 DOI: 10.1016/j.bbrc.2019.02.151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 02/27/2019] [Indexed: 11/17/2022]
Abstract
The recently discovered circular RNAs (circRNAs) are mostly formed by back-splicing where the downstream 5' splice site splices to the upstream 3' splice site by conventional pre-mRNA splicing. These circRNAs regulate gene expression by acting as sponges for micro-RNAs or RNA-binding proteins. Here we show that the NR5A1 (previously called Ad4BP or SF-1) gene which is exclusively expressed in the adrenal cortex and steroidogenic tissue can form atypical circRNAs by unconventional splicing. Two stem loops with inositol-requiring protein-1α (IRE1α) cleavage sites are connected by an IRE1α cleavage site to form a circRNA (circIRE RNA). From total RNA of normal human adrenal cortex, we detected a circIRE RNA with connected ends by IRE1α cleavage sites in exon 6 and exon 1 (circIRE NR5A1 ex6-1 RNA). circIRE NR5A1 ex6-1 RNA was not detected in the adrenocortical cancer cell line, H295R. When IRE1α was expressed in H295R cells a different circIRE NR5A1 RNA connecting IRE1-cleavage sites in exon 7 and exon 1 was detected (circIRE NR5A1 ex7-1 RNA). The expression of this circIRE RNA was inhibited by the IRE1 inhibitor 1, STF-083010, implicating that it was formed via the ER stress pathway, where IRE1α is a major factor. This is the first report of this type of circular RNA connected by IRE1-cleavage sites found to be expressed in mammalian cells in a tissue-specific manner. To our surprise, the concomitant expression of NR5A1 was increased by IRE1α implicating that NR5A1 was not subjected to IRE1-dependent decay of mRNA (RIDD) but rather activating a transcriptional regulatory network to cope with ER stress in steroidogenic tissue reminiscent to XBP1 in other tissue. We believe this is the first report of such tissue-specific transcriptional cascade responding to ER stress as well as the novel finding of circular RNAs connected by IRE1α cleavage sites expressed in mammalian tissue.
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Affiliation(s)
- Kenji Ohe
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan.
| | - Tomoko Tanaka
- Department of Endocrinology and Diabetes Mellitus, Faculty of Medicine, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan; Department of Bioregulatory Science of Life-related Diseases, Faculty of Medicine, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan
| | - Yuta Horita
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan
| | - Yoshihiro Harada
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan
| | - Takafumi Yamasaki
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan
| | - Ichiro Abe
- Department of Endocrinology and Diabetes Mellitus, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502, Japan
| | - Makito Tanabe
- Department of Endocrinology and Diabetes Mellitus, Faculty of Medicine, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan
| | - Takashi Nomiyama
- Department of Endocrinology and Diabetes Mellitus, Faculty of Medicine, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan
| | - Kunihisa Kobayashi
- Department of Endocrinology and Diabetes Mellitus, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502, Japan
| | - Munechika Enjoji
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan
| | - Toshihiko Yanase
- Department of Endocrinology and Diabetes Mellitus, Faculty of Medicine, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan; Department of Bioregulatory Science of Life-related Diseases, Faculty of Medicine, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan.
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7
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Ito K, Okuno T, Sawada A, Sakai K, Kato Y, Muro K, Yanagita M, Teramoto Y, Yamasaki T, Inoue T, Ogawa O, Kobayashi T. Recurrent Aphthous Stomatitis Caused by Cytomegalovirus, Herpes Simplex Virus, and Candida Species in a Kidney Transplant Recipient: A Case Report. Transplant Proc 2019; 51:993-997. [PMID: 30979493 DOI: 10.1016/j.transproceed.2019.01.058] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 11/20/2018] [Accepted: 01/17/2019] [Indexed: 12/13/2022]
Abstract
Recipients of organ transplants are immunosuppressed and at high risk of oral infection. Oral diseases are often neglected compared with infections of other organs that typically confer higher morbidity. However, severe local symptoms hinder oral intake, decrease quality of life, and are sometimes lethal. Here we describe a case of a 57-year-old woman who developed recurrent aphthous stomatitis after kidney transplantation; the cause of the infection was complex and included cytomegalovirus, herpes simplex virus, and Candida species. Since misdiagnosis of oral diseases impairs patient quality of life and increases morbidity, clinicians should be aware of possible etiologies of oral infections in renal transplant recipients.
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Affiliation(s)
- K Ito
- Department of Urology, Kyoto University Hospital, Kyoto, Japan
| | - T Okuno
- Department of Urology, Kyoto University Hospital, Kyoto, Japan
| | - A Sawada
- Department of Urology, Kyoto University Hospital, Kyoto, Japan
| | - K Sakai
- Department of Nephrology, Kyoto University Hospital, Kyoto, Japan
| | - Y Kato
- Department of Nephrology, Kyoto University Hospital, Kyoto, Japan
| | - K Muro
- Department of Nephrology, Kyoto University Hospital, Kyoto, Japan
| | - M Yanagita
- Department of Nephrology, Kyoto University Hospital, Kyoto, Japan
| | - Y Teramoto
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - T Yamasaki
- Department of Urology, Kyoto University Hospital, Kyoto, Japan
| | - T Inoue
- Department of Urology, Kyoto University Hospital, Kyoto, Japan
| | - O Ogawa
- Department of Urology, Kyoto University Hospital, Kyoto, Japan.
| | - T Kobayashi
- Department of Urology, Kyoto University Hospital, Kyoto, Japan
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8
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Yasunaga Y, Tanaka R, Mifuji K, Shoji T, Yamasaki T, Adachi N, Ochi M. Rotational acetabular osteotomy for symptomatic hip dysplasia in patients younger than 21 years of age: seven- to 30-year survival outcomes. Bone Joint J 2019; 101-B:390-395. [PMID: 30929485 DOI: 10.1302/0301-620x.101b4.bjj-2018-1200.r1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS The aim of this study was to report the long-term results of rotational acetabular osteotomy (RAO) for symptomatic hip dysplasia in patients aged younger than 21 years at the time of surgery. PATIENTS AND METHODS We evaluated 31 patients (37 hips) aged younger than 21 years at the time of surgery retrospectively. There were 29 female and two male patients. Their mean age at the time of surgery was 17.4 years (12 to 21). The mean follow-up was 17.9 years (7 to 30). The RAO was combined with a varus or valgus femoral osteotomy or a greater trochanteric displacement in eight hips, as instability or congruence of the hip could not be corrected adequately using RAO alone. RESULTS The mean Merle d'Aubigné clinical score improved significantly from 15.4 to 17.2 (p < 0.0001). The mean centre-edge (CE) angle improved from -2.6° to 26°, the mean acetabular roof angle improved from 3.0° to 5.2°, and the mean head lateralization index improved from 0.68 to 0.62. Progression of radiological osteoarthritis (OA) was seen in seven hips, but no patient underwent total hip arthroplasty. CONCLUSION RAO is an effective form of correction for a severely dysplastic hip in adolescent and young adult patients. Cite this article: Bone Joint J 2019;101-B:390-395.
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Affiliation(s)
- Y Yasunaga
- Hiroshima Prefectural Rehabilitation Center, Higashi-Hiroshima, Japan
| | - R Tanaka
- Hiroshima Prefectural Rehabilitation Center, Higashi-Hiroshima, Japan
| | - K Mifuji
- Department of Orthopaedic Surgery, Hiroshima University, Higashi-Hiroshima, Japan
| | - T Shoji
- Department of Orthopaedic Surgery, Hiroshima University, Higashi-Hiroshima, Japan
| | - T Yamasaki
- Department of Orthopaedic Surgery, Hiroshima University, Higashi-Hiroshima, Japan
| | - N Adachi
- Department of Orthopaedic Surgery, Hiroshima University, Higashi-Hiroshima, Japan
| | - M Ochi
- Hiroshima University, Higashi-Hiroshima, Japan
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9
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Kenmochi H, Yamasaki T, Horikawa M, Yamamoto T, Koizumi S, Sameshima T, Namba H. P04.67 Assessments for prediction of bystander effect in HSV-tk/GCV gene therapy. Neuro Oncol 2018. [DOI: 10.1093/neuonc/noy139.301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- H Kenmochi
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu city, Shizuoka, Japan
| | - T Yamasaki
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu city, Shizuoka, Japan
| | - M Horikawa
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu city, Shizuoka, Japan
| | - T Yamamoto
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu city, Shizuoka, Japan
| | - S Koizumi
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu city, Shizuoka, Japan
| | - T Sameshima
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu city, Shizuoka, Japan
| | - H Namba
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu city, Shizuoka, Japan
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10
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Ohe K, Miyajima S, Abe I, Tanaka T, Hamaguchi Y, Harada Y, Horita Y, Beppu Y, Ito F, Yamasaki T, Terai H, Mori M, Murata Y, Tanabe M, Ashida K, Kobayashi K, Enjoji M, Yanase T, Harada N, Utsumi T, Mayeda A. HMGA1a induces alternative splicing of estrogen receptor alpha in MCF-7 human breast cancer cells. J Steroid Biochem Mol Biol 2018; 182:21-26. [PMID: 29678492 DOI: 10.1016/j.jsbmb.2018.04.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 12/23/2017] [Accepted: 04/13/2018] [Indexed: 12/11/2022]
Abstract
The high-mobility group A protein 1a (HMGA1a) protein is known as an oncogene whose expression level in cancer tissue correlates with the malignant potential, and known as a component of senescence-related structures connecting it to tumor suppressor networks in fibroblasts. HMGA1 protein binds to DNA, but recent studies have shown it exerts novel functions through RNA-binding. Our previous studies have shown that sequence-specific RNA-binding of HMGA1a induces exon-skipping of Presenilin-2 exon 5 in sporadic Alzheimer disease. Here we show that HMGA1a induced exon-skipping of the estrogen receptor alpha (ERα) gene and increased ERα46 mRNA expression in MCF-7 breast cancer cells. An RNA-decoy of HMGA1a efficiently blocked this event and reduced ERα46 protein expression. Blockage of HMGA1a RNA-binding property consequently induced cell growth through reduced ERα46 expression in MCF-7 cells and increased sensitivity to tamoxifen in the tamoxifen-resistant cell line, MCF-7/TAMR1. Stable expression of an HMGA1a RNA-decoy in MCF-7 cells exhibited decreased ERα46 protein expression and increased estrogen-dependent tumor growth when these cells were implanted in nude mice. These results show HMGA1a is involved in alternative splicing of the ERα gene and related to estrogen-related growth as well as tamoxifen sensitivity in MCF-7 breast cancer cells.
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Affiliation(s)
- Kenji Ohe
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan.
| | - Shinsuke Miyajima
- Department of Breast Surgery, School of Medicine, Fujita Health University, Toyoake, Aichi 470-1192, Japan
| | - Ichiro Abe
- Department of Endocrinology and Diabetes Mellitus, Fukuoka University Chikushi Hospital, Chikushino city, 818-8502, Japan
| | - Tomoko Tanaka
- Department of Endocrinology and Diabetes Mellitus, Faculty of Medicine, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan
| | - Yuriko Hamaguchi
- Department of Endocrinology and Diabetes Mellitus, Faculty of Medicine, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan
| | - Yoshihiro Harada
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan
| | - Yuta Horita
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan
| | - Yuki Beppu
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan
| | - Fumiaki Ito
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan
| | - Takafumi Yamasaki
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan
| | - Hiroki Terai
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan
| | - Masayoshi Mori
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan
| | - Yusuke Murata
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan
| | - Makito Tanabe
- Department of Endocrinology and Diabetes Mellitus, Faculty of Medicine, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan
| | - Kenji Ashida
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kunihisa Kobayashi
- Department of Endocrinology and Diabetes Mellitus, Fukuoka University Chikushi Hospital, Chikushino city, 818-8502, Japan
| | - Munechika Enjoji
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan
| | - Toshihiko Yanase
- Department of Endocrinology and Diabetes Mellitus, Faculty of Medicine, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-180, Japan
| | - Nobuhiro Harada
- Department of Biochemistry, School of Medicine, Fujita Health University, Toyoake, Aichi 470-1192, Japan
| | - Toshiaki Utsumi
- Department of Breast Surgery, School of Medicine, Fujita Health University, Toyoake, Aichi 470-1192, Japan
| | - Akila Mayeda
- Division of Gene Expression Mechanism, Institute for Comprehensive Medical Science (ICMS), Fujita Health University, Aichi, Toyoake, 470-1192, Japan
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Tanaka K, Okamura A, Iwamoto M, Nagai H, Yamasaki T, Sumiyoshi A, Tanaka T, Iwakura A, Fuzii K. P797Efficacy of the three dimensional wiring technique for CTO. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- K Tanaka
- Sakurabashi-Watanabe Hospital, Cardiovascular Center, Osaka, Japan
| | - A Okamura
- Sakurabashi-Watanabe Hospital, Cardiovascular Center, Osaka, Japan
| | - M Iwamoto
- Sakurabashi-Watanabe Hospital, Cardiovascular Center, Osaka, Japan
| | - H Nagai
- Sakurabashi-Watanabe Hospital, Cardiovascular Center, Osaka, Japan
| | - T Yamasaki
- Sakurabashi-Watanabe Hospital, Cardiovascular Center, Osaka, Japan
| | - A Sumiyoshi
- Sakurabashi-Watanabe Hospital, Cardiovascular Center, Osaka, Japan
| | - T Tanaka
- Sakurabashi-Watanabe Hospital, Cardiovascular Center, Osaka, Japan
| | - A Iwakura
- Sakurabashi-Watanabe Hospital, Cardiovascular Center, Osaka, Japan
| | - K Fuzii
- Sakurabashi-Watanabe Hospital, Cardiovascular Center, Osaka, Japan
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12
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Ohe K, Miyajima S, Tanaka T, Hamaguchi Y, Harada Y, Horita Y, Beppu Y, Ito F, Yamasaki T, Terai H, Mori M, Murata Y, Tanabe M, Abe I, Ashida K, Kobayashi K, Enjoji M, Nomiyama T, Yanase T, Harada N, Utsumi T, Mayeda A. HMGA1a Induces Alternative Splicing of the Estrogen Receptor-α lpha Gene by Trapping U1 snRNP to an Upstream Pseudo-5' Splice Site. Front Mol Biosci 2018; 5:52. [PMID: 29938207 PMCID: PMC6002489 DOI: 10.3389/fmolb.2018.00052] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 03/30/2018] [Accepted: 05/22/2018] [Indexed: 12/31/2022] Open
Abstract
Objectives: The high-mobility group A protein 1a (HMGA1a) protein is known as a transcription factor that binds to DNA, but recent studies have shown it exerts novel functions through RNA-binding. We were prompted to decipher the mechanism of HMGA1a-induced alternative splicing of the estrogen receptor alpha (ERα) that we recently reported would alter tamoxifen sensitivity in MCF-7 TAMR1 cells. Methods: Endogenous expression of full length ERα66 and its isoform ERα46 were evaluated in MCF-7 breast cancer cells by transient expression of HMGA1a and an RNA decoy (2′-O-methylated RNA of the HMGA1a RNA-binding site) that binds to HMGA1a. RNA-binding of HMGA1a was checked by RNA-EMSA. In vitro splicing assay was performed to check the direct involvement of HMGA1a in splicing regulation. RNA-EMSA assay in the presence of purified U1 snRNP was performed with psoralen UV crosslinking to check complex formation of HMGA1a-U1 snRNP at the upstream pseudo-5′ splice site of exon 1. Results: HMGA1a induced exon skipping of a shortened exon 1 of ERα in in vitro splicing assays that was blocked by the HMGA1a RNA decoy and sequence-specific RNA-binding was confirmed by RNA-EMSA. RNA-EMSA combined with psoralen UV crosslinking showed that HMGA1a trapped purified U1 snRNP at the upstream pseudo-5′ splice site. Conclusions: Regulation of ERα alternative splicing by an HMGA1a-trapped U1 snRNP complex at the upstream 5′ splice site of exon 1 offers novel insight on 5′ splice site regulation by U1 snRNP as well as a promising target in breast cancer therapy where alternative splicing of ERα is involved.
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Affiliation(s)
- Kenji Ohe
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Shinsuke Miyajima
- Department of Breast Surgery, Fujita Health University, Toyoake, Japan
| | - Tomoko Tanaka
- Department of Endocrinology and Diabetes Mellitus, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Yuriko Hamaguchi
- Department of Endocrinology and Diabetes Mellitus, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Yoshihiro Harada
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Yuta Horita
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Yuki Beppu
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Fumiaki Ito
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Takafumi Yamasaki
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Hiroki Terai
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Masayoshi Mori
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Yusuke Murata
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Makito Tanabe
- Department of Endocrinology and Diabetes Mellitus, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Ichiro Abe
- Department of Endocrinology and Diabetes Mellitus, Fukuoka University Chikushi Hospital, Chikushino, Japan
| | - Kenji Ashida
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kunihisa Kobayashi
- Department of Endocrinology and Diabetes Mellitus, Fukuoka University Chikushi Hospital, Chikushino, Japan
| | - Munechika Enjoji
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Takashi Nomiyama
- Department of Endocrinology and Diabetes Mellitus, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Toshihiko Yanase
- Department of Endocrinology and Diabetes Mellitus, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Nobuhiro Harada
- Department of Biochemistry, Fujita Health University, Toyoake, Japan
| | - Toshiaki Utsumi
- Department of Breast Surgery, Fujita Health University, Toyoake, Japan
| | - Akila Mayeda
- Division of Gene Expression Mechanism, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, Japan
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13
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Akinsiku O, Yamasaki T, Brunner S, Ganocy S, Fass R. High resolution vs conventional esophageal manometry in the assessment of esophageal motor disorders in patients with non-cardiac chest pain. Neurogastroenterol Motil 2018; 30:e13282. [PMID: 29286206 DOI: 10.1111/nmo.13282] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 12/04/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND High-resolution esophageal manometry (HREM) has become a leading tool in the assessment of esophageal motor disorders, replacing conventional manometry. However, there is limited data about the contribution of HREM as compared with conventional manometry to the assessment of esophageal motor disorders in patients with non-cardiac chest pain (NCCP). The aim of the study was to compare the distribution of esophageal motor disorders in patients with NCCP using HREM as compared with conventional manometry and to determine if HREM improved diagnosis of these disorders. METHODS In this study, we included 300 consecutive patients with NCCP who underwent either HREM or conventional manometry over a period of 10 years. A total of 150 patients had conventional manometry and the other 150 patients HREM. The Chicago 3.0 classification and the Castell and Spechler classification were used to determine the esophageal motor disorder of NCCP patients undergoing HREM and conventional manometry, respectively. KEY RESULTS In both HREM and the conventional manometry groups, normal esophageal motility was the most frequent finding (47% and 36%; respectively, P = .054). Hypotensive lower esophageal sphincter was the most common motility disorder identified by conventional manometry (27.3%), while ineffective esophageal motility was the most common esophageal motor disorder identified by HREM (25.3%). CONCLUSIONS & INFERENCES There is a discrepancy in the type of esophageal motor disorders identified by HREM as compared with conventional manometry in NCCP patients. Hypotensive motility disorders are the most commonly diagnosed by both manometric techniques.
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Affiliation(s)
- O Akinsiku
- The Esophageal and Swallowing Center, Division of Gastroenterology and Hepatology, Case Western Reserve University, MetroHealth Medical Center, Cleveland, OH, USA
| | - T Yamasaki
- The Esophageal and Swallowing Center, Division of Gastroenterology and Hepatology, Case Western Reserve University, MetroHealth Medical Center, Cleveland, OH, USA
| | - S Brunner
- The Esophageal and Swallowing Center, Division of Gastroenterology and Hepatology, Case Western Reserve University, MetroHealth Medical Center, Cleveland, OH, USA
| | - S Ganocy
- The Esophageal and Swallowing Center, Division of Gastroenterology and Hepatology, Case Western Reserve University, MetroHealth Medical Center, Cleveland, OH, USA
| | - R Fass
- The Esophageal and Swallowing Center, Division of Gastroenterology and Hepatology, Case Western Reserve University, MetroHealth Medical Center, Cleveland, OH, USA
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14
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Shoji T, Yamasaki T, Izumi S, Murakami H, Mifuji K, Sawa M, Yasunaga Y, Adachi N, Ochi M. Factors affecting the potential for posterior bony impingement after total hip arthroplasty. Bone Joint J 2017; 99-B:1140-1146. [DOI: 10.1302/0301-620x.99b9.bjj-2016-1078.r2] [Citation(s) in RCA: 21] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 05/09/2017] [Indexed: 11/05/2022]
Abstract
Aims Our aim was to evaluate the radiographic characteristics of patients undergoing total hip arthroplasty (THA) for the potential of posterior bony impingement using CT simulations. Patients and Methods Virtual CT data from 112 patients who underwent THA were analysed. There were 40 men and 72 women. Their mean age was 59.1 years (41 to 76). Associations between radiographic characteristics and posterior bony impingement and the range of external rotation of the hip were evaluated. In addition, we investigated the effects of pelvic tilt and the neck/shaft angle and femoral offset on posterior bony impingement. Results The range of external rotation and the ischiofemoral length were significantly lower, while femoral anteversion, the ischial ratio, and ischial angle were significantly higher in patients with posterior bony impingement compared with those who had implant impingement (p < 0.05). The range of external rotation positively correlated with ischiofemoral length (r = 0.49, p < 0.05), and negatively correlated with ischial length (r = -0.49, p < 0.05), ischial ratio (r =- 0.49, p < 0.05) and ischial angle (r = -0.55, p < 0.05). The range of external rotation was lower in patients with posterior pelvic tilt (p < 0.05) and in those with a high offset femoral component (p < 0.05) due to posterior bony impingement. Conclusion Posterior bony impingement after THA is more likely in patients with a wider ischium and a narrow ischiofemoral space. A high femoral offset and posterior pelvic tilt are also risk factors for this type of impingement. Cite this article: Bone Joint J 2017;99-B:1140–6.
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Affiliation(s)
- T. Shoji
- Graduate School of Biomedical Sciences,
Hiroshima University,
1-2-3 Kasumi, Minami-ku, Hiroshima
734-8551, Japan
| | - T. Yamasaki
- Graduate School of Biomedical Sciences,
Hiroshima University,
1-2-3 Kasumi, Minami-ku, Hiroshima
734-8551, Japan
| | - S. Izumi
- Graduate School of Biomedical Sciences,
Hiroshima University,
1-2-3 Kasumi, Minami-ku, Hiroshima
734-8551, Japan
| | - H. Murakami
- Graduate School of Biomedical Sciences,
Hiroshima University,
1-2-3 Kasumi, Minami-ku, Hiroshima
734-8551, Japan
| | - K. Mifuji
- Graduate School of Biomedical Sciences,
Hiroshima University,
1-2-3 Kasumi, Minami-ku, Hiroshima
734-8551, Japan
| | - M. Sawa
- Graduate School of Biomedical Sciences,
Hiroshima University,
1-2-3 Kasumi, Minami-ku, Hiroshima
734-8551, Japan
| | - Y. Yasunaga
- Hiroshima Prefectural Rehabilitation Center, 295-3
Taguchi, Saijo-town, Higashi-hiroshima, 739-0036, Japan
| | - N. Adachi
- Graduate School of Biomedical Sciences,
Hiroshima University,
1-2-3 Kasumi, Minami-ku, Hiroshima
734-8551, Japan
| | - M. Ochi
- Graduate School of Biomedical Sciences,
Hiroshima University,
1-2-3 Kasumi, Minami-ku, Hiroshima
734-8551, Japan
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15
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Uchida J, Iwai T, Kuwabara N, Kabei K, Nishide S, Yamasaki T, Naganuma T, Kumada N, Takemoto Y, Nakatanti T. Clinical Experience of Late Conversion From Antimetabolites With Standard Exposure Calcineurin Inhibitors to Everolimus With Calcineurin Inhibitor Minimization in Stable Kidney Transplant Recipients With Good Renal Function. Transplant Proc 2017; 48:775-80. [PMID: 27234734 DOI: 10.1016/j.transproceed.2016.02.038] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 01/30/2016] [Accepted: 02/18/2016] [Indexed: 12/13/2022]
Abstract
INTRODUCTION This study describes our clinical experience of late conversion from antimetabolites with standard exposure calcineurin inhibitors (CNIs) to everolimus with CNI minimization in stable kidney transplant recipients with good graft function. PATIENTS AND METHODS A 1-year retrospective pilot study of 26 kidney recipients converted from antimetabolites with standard exposure CNIs to everolimus with CNI minimization was performed. The recipients enrolled in this study had normal or slightly impaired renal function defined as a serum creatinine value <2.0 mg/dL, and normal or slightly increased albuminuria defined as a urinary albumin excretion rate <100 mg/g creatinine. RESULTS The median time from transplant to conversion was 39.5 months posttransplant (range, 3-275). Treatment with everolimus was stopped owing to adverse events in 11 patients (42.3%). In the analysis of the patients in whom everolimus was maintained, the mean estimated glomerular filtration rate (eGFR) significantly increased from 50.7 ± 11.9 mL/min/1.73 m(2) at baseline to 53.6 ± 13.9 mL/min/1.73 m(2) at 1 year after conversion. In the patients in whom everolimus was stopped during the observation period, there was no difference in eGFR between baseline and 1 year after conversion. CONCLUSIONS This study demonstrated that, among the patients converted to everolimus at a late stage, there was no deterioration in renal function whether everolimus was maintained or stopped within 1 year after conversion.
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Affiliation(s)
- J Uchida
- Department of Urology, Osaka City University Graduate School of Medicine, Osaka, Japan.
| | - T Iwai
- Department of Urology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - N Kuwabara
- Department of Urology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - K Kabei
- Department of Urology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - S Nishide
- Department of Urology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - T Yamasaki
- Department of Urology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - T Naganuma
- Department of Urology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - N Kumada
- Department of Urology, Suita Municipal Hospital, Suita, Japan
| | - Y Takemoto
- Department of Urology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - T Nakatanti
- Department of Urology, Osaka City University Graduate School of Medicine, Osaka, Japan
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16
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Hoshikawa M, Aosasa S, Abe H, Nishikawa M, Noro T, Hiraki S, Kajiwara Y, Moriya T, Yamasaki T, Shinto E, Tsujimoto H, Ueno H, Tanimizu T, Hase K, Yamamoto J. 428. Inframesocolic superior mesenteric artery first approach as an introductory procedure of radical antegrade modular pancreatosplenectomy for distal pancreatic cancer. Eur J Surg Oncol 2016. [DOI: 10.1016/j.ejso.2016.06.268] [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: 11/17/2022] Open
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17
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Shimoda Y, Yui J, Zhang Y, Hatori A, Ogawa M, Fujinaga M, Yamasaki T, Xie L, Kumata K, Zhang MR. Radiosynthesis and evaluation of N-(3,4-dimethylisoxazol-5-yl)piperazine-4-[4-(4-fluorophenyl)thiazol-2-yl]-1-[11C]carboxamide for in vivo positron emission tomography imaging of fatty acid amide hydrolase in brain. RSC Adv 2015. [DOI: 10.1039/c5ra22500k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
[11C] DPFC is a promising PET radiotracer forin vivoimaging of fatty acid amide hydrolase in brain.
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Affiliation(s)
- Y. Shimoda
- Molecular Imaging Centre
- National Institute of Radiological Sciences
- Chiba 263-8555
- Japan
| | - J. Yui
- Molecular Imaging Centre
- National Institute of Radiological Sciences
- Chiba 263-8555
- Japan
| | - Y. Zhang
- Molecular Imaging Centre
- National Institute of Radiological Sciences
- Chiba 263-8555
- Japan
| | - A. Hatori
- Molecular Imaging Centre
- National Institute of Radiological Sciences
- Chiba 263-8555
- Japan
| | - M. Ogawa
- Molecular Imaging Centre
- National Institute of Radiological Sciences
- Chiba 263-8555
- Japan
- SHI Accelerator
| | - M. Fujinaga
- Molecular Imaging Centre
- National Institute of Radiological Sciences
- Chiba 263-8555
- Japan
| | - T. Yamasaki
- Molecular Imaging Centre
- National Institute of Radiological Sciences
- Chiba 263-8555
- Japan
| | - L. Xie
- Molecular Imaging Centre
- National Institute of Radiological Sciences
- Chiba 263-8555
- Japan
| | - K. Kumata
- Molecular Imaging Centre
- National Institute of Radiological Sciences
- Chiba 263-8555
- Japan
| | - M.-R. Zhang
- Molecular Imaging Centre
- National Institute of Radiological Sciences
- Chiba 263-8555
- Japan
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18
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Tiwari AK, Yui J, Pooja P, Aggarwal S, Yamasaki T, Xie L, Chadha N, Zhang Y, Fujinaga M, Shimoda Y, Kumata K, Mishra AK, Ogawa M, Zhang MR. Design, synthesis and biological evaluation of small molecule-based PET radioligands for the 5-hydroxytryptamine 7 receptor. RSC Adv 2015. [DOI: 10.1039/c4ra15833d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new prospective approach for PET imaging of 5-HT7 by a small molecule ligand.
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19
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Yamasaki T, Wakao S, Kawaji H, Suzuki T, Kamio Y, Amano S, Sameshima T, Sakai N, Tokuyama T, Dezawa M, Namba H. ET-67 * SUICIDE GENE THERAPY FOR GLIOMA USING MULTILINEAGE-DEFFERENTIATING STRESS ENDURING (MUSE) CELLS. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou255.64] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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20
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Yamasaki T, Kawaji H, Kamio Y, Amano S, Sameshima T, Sakai N, Tokuyama T, Namba H. P01.22 * GENERATION OF GENETICALLY ENGINEERED INDUCED PLURIPOTENT STEM CELL-DERIVED NEURAL STEM CELLS WITHOUT USING VIRAL VECTORS. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou174.115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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21
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Fukui H, Zhang X, Sun C, Hara K, Kikuchi S, Yamasaki T, Kondo T, Tomita T, Oshima T, Watari J, Imura J, Fujimori T, Sasako M, Miwa H. IL-22 produced by cancer-associated fibroblasts promotes gastric cancer cell invasion via STAT3 and ERK signaling. Br J Cancer 2014; 111:763-71. [PMID: 24937671 PMCID: PMC4134496 DOI: 10.1038/bjc.2014.336] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 05/17/2014] [Accepted: 05/20/2014] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Interleukin-22 (IL-22) has been recently highlighted owing to its biological significance in the modulation of tissue responses during inflammation. However, the role of IL-22 in carcinogenesis has remained unclear. Here, we investigated the pathophysiological significance of IL-22 expression in gastric cancer tissues and examined the mechanism by which IL-22 promotes gastric cancer cell invasion. METHODS Human gastric cancer specimens were analysed by immunohistochemistry for expression of IL-22 and IL-22 receptor 1 (IL-22R1). The effects of IL-22-induced STAT3 and ERK signalling on invasive ability of gastric cancer cells were examined using a small-interfering RNA system and specific inhibitors. AGS cells were co-cultured with cancer-associated fibroblasts (CAFs) from human gastric cancer tissues and assessed by invasion assay. RESULTS Interleukin-22 and its receptor were expressed in α-smooth muscle actin-positive stromal cells and tumour cells at the invasive front of gastric cancer tissues, respectively. The expression of IL-22 and IL-22R1 was significantly related to lymphatic invasion. Interleukin-22 treatment promoted the invasive ability of gastric cancer cells through STAT3 and ERK activation. The invasive ability of gastric cancer cells was significantly enhanced by co-culture with IL-22-expressing CAFs. CONCLUSIONS Interleukin-22 produced by CAFs promotes gastric cancer cell invasion via STAT3 and ERK signalling.
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Affiliation(s)
- H Fukui
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Japan
| | - X Zhang
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Japan
- Department of Geriatric Digestive Internal Medicine, Sichuan Academy of Medical Science & Sichuan People's Hospital, Chengdu 610072, China
| | - C Sun
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Japan
- Department of Digestive Diseases, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - K Hara
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Japan
| | - S Kikuchi
- Department of Surgery, Hyogo College of Medicine, Nishinomiya 663-8501, Japan
| | - T Yamasaki
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Japan
| | - T Kondo
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Japan
| | - T Tomita
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Japan
| | - T Oshima
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Japan
| | - J Watari
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Japan
| | - J Imura
- Department of Surgical and Molecular Pathology, Dokkyo University School of Medicine, Tochigi 321-0293, Japan
| | - T Fujimori
- Department of Surgical and Molecular Pathology, Dokkyo University School of Medicine, Tochigi 321-0293, Japan
| | - M Sasako
- Department of Surgery, Hyogo College of Medicine, Nishinomiya 663-8501, Japan
| | - H Miwa
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Japan
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22
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Yamasaki T, Horie S, Tanaka E, Nakamura N, Ohyagi Y, Kanba S, Kira JI, Tobimatsu S. P61: Higher level but not lower level parallel visual pathways are functionally altered in patients with mild cognitive impairment. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50221-0] [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: 11/17/2022]
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23
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Mori R, Yasunaga Y, Yamasaki T, Nakashiro J, Fujii J, Terayama H, Ohshima S, Ochi M. Are cam and pincer deformities as common as dysplasia in Japanese patients with hip pain? Bone Joint J 2014; 96-B:172-6. [DOI: 10.1302/0301-620x.96b2.32680] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
In Japan, osteoarthritis (OA) of the hip secondary to acetabular dysplasia is very common, and there are few data concerning the pathogeneses and incidence of femoroacetabular impingement (FAI). We have attempted to clarify the radiological prevalence of painful FAI in a cohort of Japanese patients and to investigate the radiological findings. We identified 176 symptomatic patients (202 hips) with Tönnis grade 0 or 1 osteoarthritis, whom we prospectively studied between August 2011 and July 2012. There were 61 men (65 hips) and 115 women (137 hips) with a mean age of 51.8 years (11 to 83). Radiological analyses included the α-angle, centre–edge angle, cross-over sign, pistol grip deformity and femoral head neck ratio. Of the 202 hips, 79 (39.1%) had acetabular dysplasia, while 80 hips (39.6%) had no known aetiology. We found evidence of FAI in 60 hips (29.7%). Radiological FAI findings associated with cam deformity were the most common. There was a significant relationship between the pistol grip deformity and both the α-angle (p < 0.001) and femoral head–neck ratio (p = 0.024). Radiological evidence of symptomatic FAI was not uncommon in these Japanese patients. Cite this article: Bone Joint J 2013;96-B:172–6.
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Affiliation(s)
- R. Mori
- Hiroshima University, Department
of Orthopaedic Surgery, Graduate School of
Biomedical Sciences, Kasumi 1-2-3, Minami-ku, Hiroshima
City, 734-8551, Japan
| | - Y. Yasunaga
- Hiroshima University, Department
of Artificial Joints and Biomaterials, Graduate
School of Biomedical Sciences, Kasumi 1-2-3, Minami-ku, Hiroshima
City, 734-8551, Japan
| | - T. Yamasaki
- Hiroshima University, Department
of Orthopaedic Surgery, Graduate School of
Biomedical Sciences, Kasumi 1-2-3, Minami-ku, Hiroshima
City, 734-8551, Japan
| | - J. Nakashiro
- Matsuyama Red Cross Hospital, Department
of Orthopaedic Surgery, Bukyo-machi 1, Matsuyama
City, 790-8524, Japan
| | - J. Fujii
- Hiroshima Prefectural Rehabilitation Center, Department
of Orthopaedic Surgery, Taguchi 295-3, Saijo-tyo, Higashi-Hiroshima
City, 739-0036, Japan
| | - H. Terayama
- Ohasa Furusato Hopital, Department
of Orthopaedic Surgery, Shinjo 2147-1, Kita-Hiroshima-tyo, Yamagata-gun, 731-2103, Japan
| | - S. Ohshima
- Onomichi General Hospital, Department
of Orthopaedic Surgery, Hirahara 1-10-23, Onomichi
City, 722-8508, Japan
| | - M. Ochi
- Hiroshima University, Department
of Orthopaedic Surgery, Graduate School of
Biomedical Sciences, Kasumi 1-2-3, Minami-ku, Hiroshima
City, 734-8551, Japan
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Ohba T, Yamasaki T, Endo Y, Furuie M, Ohtani Y, Inase N, Yoshizawa Y. A Phase I Study of TS-1 Plus Carboplatin in Patients with Advanced Non-Small-Cell Lung Cancer. J Chemother 2013; 21:80-5. [DOI: 10.1179/joc.2009.21.1.80] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Oka A, Maruo Y, Miki T, Yamasaki T, Saito T. Influence of vitamin A on the quality of beef from the Tajima strain of Japanese Black cattle. Meat Sci 2012; 48:159-67. [PMID: 22062888 DOI: 10.1016/s0309-1740(97)00086-7] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/1997] [Revised: 07/20/1997] [Accepted: 07/26/1997] [Indexed: 01/28/2023]
Abstract
Influence of vitamin A on the beef quality of the Tajima strain of Japanese Black cattle was studied. Marbling scores were correlated with serum vitamin A concentrations just before slaughter (r = -0.38). The mean marbling score of the low vitamin A group that were not supplemented with vitamin A after 15 months of age was significantly higher than that of the group supplemented with high vitamin A. However, there was no significant difference in the marbling scores between the group that were not given vitamin A after 23 months of age and the high vitamin A supplemented group. These results suggest that vitamin A supplementation affects carcass marbling only if given before 23 months of age, in these cattle.
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Affiliation(s)
- A Oka
- Hyogo Prefectural Agricultural Institute, Kasai, Hyogo 679-01, Japan
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Liu F, Makino T, Yamasaki T, Ueno K, Tsukazaki A, Fukumura T, Kong Y, Kawasaki M. Ultrafast time-resolved faraday rotation in EuO thin films. Phys Rev Lett 2012; 108:257401. [PMID: 23004656 DOI: 10.1103/physrevlett.108.257401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2011] [Indexed: 06/01/2023]
Abstract
We have investigated the ultrafast spin dynamics in EuO thin films by time-resolved Faraday rotation spectroscopy. The photoinduced magnetization is found to be increased in a transient manner, accompanied with subsequent demagnetization. The dynamical magnetization enhancement showed a maximum slightly below the Curie temperature with prolonged tails toward both lower and higher temperatures and dominates the demagnetization counterpart at 55 K. The magnetization enhancement component decays in ~1 ns. The realization of the transient collective ordering is attributable to the enhancement of the f-d exchange interaction.
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Affiliation(s)
- F Liu
- Quantum Phase Electronics Center and Department of Applied Physics, University of Tokyo, Tokyo 113-8656, Japan
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Manenti L, Allinovi M, Vaglio A, Allegri L, Gnappi E, Simonetti G, Simonetti G, Vilalta R, Lapeyraque AL, Gruppo R, Sherwinter J, Smith J, Thornburg C, Jungraithmayr T, Wuehl E, Al-Akash S, Davin JC, Macher MA, Langman C, Camacho Diaz JA, Chin M, Goldsberry, Ms A, Hebbar S, Meyer C, Audhya P, Toto R, Warnock D, Pergola P, Chin M, Goldsberry, Ms A, Hebbar S, Meyer C, Audhya P, Imai E, Haneda M, Ito S, Kobayashi F, Yamasaki T, Chan J, Makino H. HUS and diabetic nephropathy. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Imai E, Chan JCN, Ito S, Yamasaki T, Kobayashi F, Haneda M, Makino H. Effects of olmesartan on renal and cardiovascular outcomes in type 2 diabetes with overt nephropathy: a multicentre, randomised, placebo-controlled study. Diabetologia 2011; 54:2978-86. [PMID: 21993710 PMCID: PMC3210358 DOI: 10.1007/s00125-011-2325-z] [Citation(s) in RCA: 184] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2011] [Accepted: 09/01/2011] [Indexed: 01/01/2023]
Abstract
AIMS/HYPOTHESIS The renal and cardiovascular protective effects of angiotensin receptor blocker (ARB) remain controversial in type 2 diabetic patients treated with a contemporary regimen including an angiotensin converting enzyme inhibitor (ACEI). METHODS We examined the effects of olmesartan, an ARB, on primary composite outcome of doubling of serum creatinine, endstage renal disease and death in type 2 diabetic patients with overt nephropathy. Secondary outcome included composite cardiovascular outcomes, changes in renal function and proteinuria. Randomisation and allocation to trial group were carried out by a central computer system. Participants, caregivers, the people carrying out examinations and people assessing the outcomes were blinded to group assignment. RESULTS Five hundred and seventy-seven (377 Japanese, 200 Chinese) patients treated with antihypertensive therapy (73.5% [n = 424] received concomitant ACEI), were given either once-daily olmesartan (10-40 mg) (n = 288) or placebo (n = 289) over 3.2 ± 0.6 years (mean±SD). In the olmesartan group, 116 developed the primary outcome (41.1%) compared with 129 (45.4%) in the placebo group (HR 0.97, 95% CI 0.75, 1.24; p = 0.791). Olmesartan significantly decreased blood pressure, proteinuria and rate of change of reciprocal serum creatinine. Cardiovascular death was higher in the olmesartan group than the placebo group (ten vs three cases), whereas major adverse cardiovascular events (cardiovascular death plus non-fatal stroke and myocardial infarction) and all-cause death were similar between the two groups (major adverse cardiovascular events 18 vs 21 cases, all-cause deaths; 19 vs 20 cases). Hyperkalaemia was more frequent in the olmesartan group than the placebo group (9.2% vs 5.3%). CONCLUSIONS/INTERPRETATION Olmesartan was well tolerated but did not improve renal outcome on top of ACEI. TRIAL REGISTRATION ClinicalTrials.gov NCT00141453.
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Affiliation(s)
- E. Imai
- Department of Nephrology, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya, Aichi 466-8550 Japan
| | - J. C. N. Chan
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, Hong Kong, SAR China
| | - S. Ito
- Division of Nephrology, Endocrinology, and Vascular Medicine, Department of Clinical Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | | | | | - M. Haneda
- Second Department of Medicine, Asahikawa University of Medical Science, Asahikawa, Japan
| | - H. Makino
- Department of Medicine, Clinical Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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Endo H, Akishinonomiya F, Yonezawa T, Hasegawa M, Rakotondraparany F, Sasaki M, Taru H, Yoshida A, Yamasaki T, Itou T, Koie H, Sakai T. Coxa Morphologically Adapted to Large Egg in Aepyornithid Species Compared with Various Palaeognaths. Anat Histol Embryol 2011; 41:31-40. [DOI: 10.1111/j.1439-0264.2011.01100.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yamasaki T, Horie S, Ogata K, Tobimatsu S. P1-28 Aging of the parallel visual pathways in humans. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60441-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Fujita T, Kamio Y, Yamasaki T, Yasumoto S, Hirose S, Tobimatsu S. P27-11 Neural basis of abnormal face perception at a preattentive level in autism spectrum disorders. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)61084-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Horie S, Yamasaki T, Hironaga N, Okamoto T, Ogata K, Tobimatsu S. P8-25 Differential effects of spatial frequency on the processing of Japanese Kanji and Kana: An MEG analysis. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60628-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Yamasaki T, Ogata K, Ijichi I, Katagiri M, Kamio Y, Tobimatsu S. P8-1 Neural basis of familiar voice recognition in preschool children: A near-infrared spectroscopic study. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60604-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Yamasaki T, Yasunaga Y, Ishikawa M, Hamaki T, Ochi M. Bone-marrow-derived mononuclear cells with a porous hydroxyapatite scaffold for the treatment of osteonecrosis of the femoral head. ACTA ACUST UNITED AC 2010; 92:337-41. [DOI: 10.1302/0301-620x.92b3.22483] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We have investigated the effectiveness of the transplantation of bone-marrow-derived mononuclear cells (BMMNCs) with interconnected porous calcium hydroxyapatite (IP-CHA) on early bone repair for osteonecrosis of the femoral head. We studied 22 patients (30 hips) who had osteonecrosis with a minimum follow-up of one year after implantation of BMMNCs. The mean age at surgery was 41 years (18 to 64) and the mean period of follow-up was 29 months (19 to 48). In a control group, cell-free IP-CHA was implanted into a further eight patients (9 hips) with osteonecrosis of the femoral head and the outcomes were compared. A reduction in the size of the osteonecrotic lesion was observed subsequent to hypertrophy of the bone in the transition zone in the BMMNC group. In three patients in the treatment group progression to extensive collapse was detected. In the control group subtle bone hypertrophy was observed, but severe collapse of the femoral head occurred in six of eight hips. In this limited study the implantation of BMMNCs and IP-CHA appears to confer benefit in the repair of osteonecrosis and in the prevention of collapse.
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Affiliation(s)
- T. Yamasaki
- Department of Orthopaedic Surgery, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
| | - Y. Yasunaga
- Department of Orthopaedic Surgery, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
| | - M. Ishikawa
- Department of Orthopaedic Surgery, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
| | - T. Hamaki
- Department of Orthopaedic Surgery, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
| | - M. Ochi
- Department of Orthopaedic Surgery, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
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Nakamitsu S, Kurokawa A, Yamasaki T, Uryu M, Hasebe R, Horiuchi M. Cell density-dependent increase in the level of protease-resistant prion protein in prion-infected Neuro2a mouse neuroblastoma cells. J Gen Virol 2009; 91:563-9. [DOI: 10.1099/vir.0.016287-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Kaise M, Kato M, Urashima M, Arai Y, Kaneyama H, Kanzazawa Y, Yonezawa J, Yoshida Y, Yoshimura N, Yamasaki T, Goda K, Imazu H, Arakawa H, Mochizuki K, Tajiri H. Magnifying endoscopy combined with narrow-band imaging for differential diagnosis of superficial depressed gastric lesions. Endoscopy 2009; 41:310-5. [PMID: 19340733 DOI: 10.1055/s-0028-1119639] [Citation(s) in RCA: 108] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIM Magnifying endoscopy combined with narrow-band imaging (ME-NBI) has been used for differential diagnosis of various focal lesions. The aim of our study was to evaluate ME-NBI criteria for cancer diagnosis in superficial depressed gastric lesions in comparison to conventional white light endoscopy (WLE). PATIENTS AND METHODS ME-NBI and WLE images of 100 superficial gastric depressions (55 depressed cancers, 45 benign depressions) were independently evaluated by 11 endoscopists blinded to the diagnosis in each case. The presence or absence of predefined ME-NBI findings relating to microvasculature and fine mucosal structure (FMS) was recorded. A general diagnosis of benign or malignant also had to be given on the basis of a general assessment of features of color and shape as shown in the ME-NBI and WLE images, respectively, without regard to any prespecified criteria. RESULTS Multivariate and ROC analysis demonstrated that the triad of FMS disappearance, microvascular dilation, and heterogeneity appeared to be the best combination for diagnosis of gastric cancer. ME-NBI diagnosis with the triad attained a good specificity (85 %, theoretically calculated if all of the triad were positive), which was significantly ( P < 0.001) superior to WLE general diagnosis (65 %), and comparable with ME-NBI general diagnosis (80 %). The sensitivities of the three diagnoses (ME-NBI with the triad 69 %, WLE general diagnosis 71 %, ME-NBI general diagnosis 72 %) were comparably moderate. The kappa values (interobserver concordance) for ME-NBI diagnosis with the triad (0.47) and ME-NBI general diagnosis (0.48) were superior to the kappa value for WLE diagnosis (0.34). CONCLUSION The triad of FMS disappearance, microvascular dilation, and heterogeneity has good specificity for the diagnosis of superficial depressed gastric carcinoma, but the sensitivity needs to be improved.
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Affiliation(s)
- M Kaise
- Department of Endoscopy, The Jikei University School of Medicine, Tokyo, Japan.
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Tanemura S, Momose H, Shimizu N, Kitagawa D, Seo J, Yamasaki T, Nakagawa K, Kajiho H, Penninger JM, Katada T, Nishina H. Blockage by SP600125 of Fc Receptor-Induced Degranulation and Cytokine Gene Expression in Mast Cells is Mediated Through Inhibition of Phosphatidylinositol 3-Kinase Signalling Pathway. J Biochem 2009; 145:345-54. [DOI: 10.1093/jb/mvn172] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abstract
A flexible analog pattern-matching classifier has been developed and its performance is demonstrated in conjunction with a robust image representation algorithm called projected principal-edge distribution (PPED). In the circuit, the functional form of matching is made tunable in terms of the peak position, the peak height and the sharpness of the similarity evaluation by employing the floating-gate MOS technology. The test chip was fabricated in a 0.6-/spl mu/m complimentary metal-oxide semiconductor technology and successfully applied to the recognition of simple handwritten patterns and Arabic numerals using the PPED algorithm for robust image coding. The separation and classification of overlapping patterns have been also experimentally demonstrated.
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Affiliation(s)
- T Yamasaki
- Dept. of Electron. Eng., Univ. of Tokyo, Japan
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Tashiro K, Yamasaki T, Kuroda T, Ogata K, Goto Y, Tobimatsu S. Effect of low-frequency rTMS on coherent motion perception in humans. Clin Neurophysiol 2007. [DOI: 10.1016/j.clinph.2007.05.039] [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]
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Kamba T, Yamasaki T, Nakamura E, Kamoto T, Ogawa O. MP-16.15: Endothelial fenestration of tumor microvasculature as a predictive factor of anti-VEGF therapy in clear cell renal cell carcinoma. Urology 2007. [DOI: 10.1016/j.urology.2007.06.475] [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: 10/22/2022]
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Abstract
BACKGROUND AND STUDY AIM Depressed gastric adenoma remains poorly characterized because it is rare, and is infrequently detected by endoscopy. The aim of this study was to elucidate clinical and endoscopic characteristics of depressed adenoma of the stomach. PATIENTS AND METHODS 95 consecutive patients who underwent endoscopic resection of gastric adenomas were studied. Gastric adenomas, diagnosed according to the Vienna classification, were endoscopically classified into two types: depressed and protruding adenomas. In order to clarify endoscopic features of gastric adenomas, we performed indigo carmine chromoendoscopy as well as magnifying endoscopy with narrow band imaging, which yields clear images of mucosal microvasculature. RESULTS 12% of 100 gastric adenomas resected from 95 patients were depressed adenomas. Age and gender were comparable between patients with each type. Depressed adenomas (15.9 +/- 6.2 mm) were significantly larger in diameter than protruding adenomas (10.6 +/- 8.0 mm) (P = 0.01). Half of depressed adenomas were reddish in color, whereas only 18% of protruding adenomas were reddish. Magnifying endoscopy with narrow band imaging showed that 71% of depressed adenomas had a regular ultrafine network pattern of mucosal microvasculature, which was not seen in protruding adenomas. Intramucosal carcinomas were more frequently found in depressed adenomas (25%) than in protruding adenomas (4.5%). CONCLUSIONS In comparison with protruding adenomas, depressed adenomas were rare and appeared endoscopically as large and reddish with a specific regular ultrafine network pattern of mucosal microvasculature. Depressed adenomas should be endoscopically resected because intramucosal carcinomas were found in a quarter of them.
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Affiliation(s)
- N Tamai
- Department of Endoscopy, The Jikei University School of Medicine, Nishi-shinbashi, Tokyo, Japan
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Kaseki H, Matsubara N, Fukami T, Matsushima T, Yamasaki T, Asakura H, Hatano H. 145. J Minim Invasive Gynecol 2005. [DOI: 10.1016/j.jmig.2005.07.144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Yamasaki T, Noguchi M, Liu B, Nakade K, Wang P, Murata T, Yokoyama K. Jun Dimerization Protein 2: A Multifunctional Transcription Factor in Mammalian Cells. Curr Genomics 2005. [DOI: 10.2174/1389202054750194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Tashiro M, Yoshikawa I, Matsuhashi T, Yamasaki T, Nishikawa S, Taguchi M, Yamasaki M, Kume K, Otsuki M. Images of interest. Gastrointestinal: inflammatory myoglandular polyp of the colon. J Gastroenterol Hepatol 2005; 20:1123. [PMID: 15955226 DOI: 10.1111/j.1440-1746.2005.04013.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- M Tashiro
- Third Department of Internal Medicine, University of Occupational and Environmental Health, Japan, School of Medicine, Kitakyushu, Japan
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Yasunaga Y, Hisatome T, Tanaka R, Yamasaki T, Ochi M. Curved varus femoral osteotomy for minimal dysplastic hip in patients older than 45 years of age: comparison with rotational acetabular osteotomy. J Orthop Sci 2005; 10:264-9. [PMID: 15928888 DOI: 10.1007/s00776-005-0885-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [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: 06/30/2004] [Accepted: 01/26/2005] [Indexed: 10/25/2022]
Abstract
Periacetabular osteotomies, such as rotational acetabular osteotomy (RAO) for osteoarthritis (OA) secondary to hip dysplasia, have produced satisfactory medium- and long-term results in early OA. However, as the degree of surgical invasion of these procedures is comparatively major and long-term postoperative rehabilitation is required, this procedure is generally not indicated for those in the fifth and sixth decades of life. Curved varus femoral osteotomy (CVO), which is a less invasive procedure, is considered a worthwhile option, although to the best of our knowledge no comparative study has been reported on these two procedures in older patients. We performed a comparative study on the outcomes of CVO for minimal dysplasia of the hip with a center-edge (CE) angle greater than 5 degrees in 15 patients (15 joints) older than 45 years of age at a mean period of 8 years after surgery and on the outcomes of RAO in 16 patients (18 joints) performed during the same period. No significant difference was observed between the two groups regarding the Merle d'Aubigne score during follow-up. Progression of osteoarthritis was radiologically observed during follow-up in three hips in the CVO group and in one hip in the RAO group. Kaplan-Meier survivorship analysis, with radiological progression of osteoarthritis as the endpoint, predicted a survival rate of 75% at 10 years in the CVO group. In the RAO group the predicted 10-year survival rate was 94%, demonstrating no significant difference between the two groups. CVO is a less invasive surgical technique than RAO, requires a comparatively shorter period of postoperative rehabilitation, and is useful as a joint-preserving procedure in older patients with minimal dysplasia of the hip with unilateral involvement. CVO should be selected for elderly patients with a CE angle greater than 5 degrees .
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Affiliation(s)
- Y Yasunaga
- Department of Orthopaedic Surgery, Hiroshima University School of Medicine, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
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Aso H, Tahara K, Yamasaki T, Rose M, Kido T, Minashima T, Miyazawa K, Hayashi S, Sanosaka M, Watanabe K, Ohwada S, Yamaguchi T. The profile of gene expression during bovine
adipogenesis: Cloning and expression of type XII
collagen isoforms. J Anim Feed Sci 2004. [DOI: 10.22358/jafs/73939/2004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Hu W, Yamasaki T, Feng Z, Yang BL, Xu XN, Wang JJ. Cloning and expressing of the three repeat fragments of Plasmodium falciparum 11.1 gene. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 2003; 19:15-8. [PMID: 12572016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To clone and express the 3R, 6R and 9R repeat fragments of Plasmodium falciparum(Pf11.1) gene. METHODS Three repeat fragments from the genomic DNA of Plasmodium falciparum 3D7 strain cultivated were amplified by using the designed primers. The PCR products were cloned into the pT7 vector for bi-direction sequencing. The sequencing results were analysised by GENETYX-MAC. And then the amplified fragments were subcloned into pET32a(+) or pET32b(+) in order to express the recombinant proteins under the induction of IPTG in E. coli BL21. RESULTS 3R,6R and 9R fragments with sizez of 552 bp, 630 bp and 444 bp respectively were successfully amplified by PCR. The sequence analysis showed that there were 4 more 3AA units and one more 6AA unit in Pf11.1 gene of 3D7 strain as compared with Palo Alto strain. The homologies of the nucleotide sequence between the 3R fragment and the 6R fragment of the two strains were 92.8% and 95.1%, respectively. The amplified 9R fragment contains 139AA repeat units. The three recombinant proteins were expressed in BL21 strain with molecular weights of 45, 60 and 42 kDa. CONCLUSION We got the 3R, 6R and 9R fragments separately by PCR and expressed them in E. coli successfully. The Pf11.1 gene of 3D7 strain is highly homologous to that of the Palo Alto strain.
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Affiliation(s)
- W Hu
- Institute of Parasitic Diseases, Chinese Academy of Preventive Medicine, Shanghai 200025
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Horikawa Y, Yamasaki T, Nakajima H, Shingu R, Yoshiuchi I, Miyagawa J, Namba M, Hanafusa T, Matsuzawa Y. Identification of a novel variant in the phosphoenolpyruvate carboxykinase gene promoter in Japanese patients with type 2 diabetes. Horm Metab Res 2003; 35:308-12. [PMID: 12916001 DOI: 10.1055/s-2003-41307] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Phospho enolpyruvate carboxykinase (PEPCK) plays an important role in gluconeogenesis and hepatic glucose production. To test the hypothesis that mutations of the PEPCK gene promoter contribute to the increased hepatic glucose production that leads to diabetes, we screened for polymorphisms of the PEPCK promoter region in 252 Japanese type 2 diabetic patients and 188 non-diabetic control subjects. A novel variant at position - 232 (C to G) was found at a similar frequency in type 2 diabetes patients (32 %) and control subjects (35 %) (p = 0.26). However, patients with the - 232 G/G genotype had an earlier age of onset than those with the - 232 C/C or - 232 C/G genotypes (p = 0.028). As the variant might well otherwise influence hormonal action, we transfected PEPCK-luciferase fusion gene constructs with the variant into human hepatoma cells and examined the response to dexamethasone, insulin, and cAMP. The reporter assay showed no significant difference in hormonal responses with the fusion gene containing the variant. Accordingly, the single-base variant at position - 232 of the PEPCK gene promoter is most probably not a major contributor to the pathogenesis of type 2 diabetes. However, this variation may be useful as a genetic marker for other metabolic disorders, especially in Japanese.
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Affiliation(s)
- Y Horikawa
- Department of Internal Medicine and Molecular Science, Graduate School of Medicine B5, Osaka University, 2 - 2 Yamada-Oka, Suita, Osaka 565-0871, Japan.
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Fujisawa M, Dobashi M, Yamasaki T, Okada H, Arakawa S, Kamidono S. Therapeutic strategy after microsurgical varicocelectomy in the modern assisted reproductive technology era. Urol Res 2002; 30:195-8. [PMID: 12111184 DOI: 10.1007/s00240-002-0253-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2001] [Accepted: 03/20/2002] [Indexed: 11/30/2022]
Abstract
In this study, we searched for prognostic factors at preoperative examination for the improvement in spermatogenesis of patients undergoing varicocelectomy. Eighty patients with varicocele testis underwent microsurgical varicocelectomy. Before surgery, the seminogram, testicular volume, varicocele grade, and serum FSH, LH, testosterone, prolactin, and estradiol were evaluated. Postoperatively, semen analysis was performed every 3 months. We assessed the associations between the preoperative variables and postoperative seminogram improvement. 0f 80 patients, 37 showed improvement, usually by 6 months. Patient age, duration of sterility, testicular volume, sperm motility, morphology, semen volume, serum LH, testosterone, prolactin, and estradiol showed little difference between responders and non-responders. A small left testis, or a grade III varicocele decreased the likelihood of improvement. Patients with a sperm count of 10-20 x 10(6)/ml were significantly more likely to respond to varicocelectomy than those with sperm counts <5 x 10(6)/ml. Patients with elevated FSH were less likely to respond, as were those with a Johnsen score below 6. Varicocelectomy alone is unlikely to improve sperm counts of patients with a sperm count below 5 x 10(6)/ml, high FSH, small left testes, or Johnsen scores below 6. In conclusion, for couples in this situation, assisted reproductive technology coupled with varicocelectomy should be proposed.
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Affiliation(s)
- Masato Fujisawa
- Division of Urology, Department of Organs Therapeutics, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan. . ac.jp
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