1
|
Nishida T, Iida H, Ohmura K, Fukai R. The usefulness of the open surgical technique of sternocostal elevation for asymmetric pectus excavatum: a retrospective study. J Thorac Dis 2024; 16:1996-2003. [PMID: 38617780 PMCID: PMC11009599 DOI: 10.21037/jtd-23-1824] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 02/05/2024] [Indexed: 04/16/2024]
Abstract
Background The Nuss procedure is currently the mainstream of pectus excavatum (PE) surgery; however, it is considered to be more difficult for asymmetric cases than for symmetric ones. Sternocostal elevation (SCE), which was performed at our hospital, is a surgical method that determines the extent of resection of the costal cartilage while comparing the left and right balance during surgery; thus, it is highly useful for correcting rib cage with strong asymmetry. Methods Of the 256 patients who underwent SCE at our hospital between July 2014 and July 2022, 58 (22.7%) with asymmetric PE were retrospectively examined. However, patients with advanced scoliosis having a Cobb angle of 25° or higher were excluded; therefore, 51 (19.9%) patients were analyzed. Two indices and other measurements were evaluated to determine the success of correction for asymmetry using computed tomography (CT). Results The difference between the left and right thoraxes, the Haller index, and the sternal torsion angle significantly improved. Furthermore, we herein set a new numerical index as an indicator of asymmetry improvement and to be used for a more standard thorax morphology; the difference between the left and right thoraxes/the average of the left and right thoraxes. That new index also significantly improved. Conclusions SCE is considered a highly useful surgical method for asymmetric PE.
Collapse
Affiliation(s)
- Tomoki Nishida
- Department of Thoracic Surgery, Shonan Kamakura General Hospital, Kamakura, Japan
| | - Hiroshi Iida
- Department of Cardiovascular Surgery, Hayama Heart Center, Hayama, Japan
| | - Kenshiro Ohmura
- Department of Thoracic Surgery, Fraternity Memorial Hospital, Tokyo, Japan
| | - Ryuta Fukai
- Department of Thoracic Surgery, Shonan Kamakura General Hospital, Kamakura, Japan
| |
Collapse
|
2
|
Inoo Y, Iida H, Yoshioka N, Koyama H, Saigusa Y, Kurasawa K, Inamori M. A Retrospective Observational Study on Telemedicine in Prescribing Low-Dose Pills for Patients with Dysmenorrhea. Telemed Rep 2024; 5:2-11. [PMID: 38469165 PMCID: PMC10927238 DOI: 10.1089/tmr.2023.0063] [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] [Subscribe] [Scholar Register] [Accepted: 12/30/2023] [Indexed: 03/13/2024]
Abstract
Introduction In Japan, telemedicine has gradually expanded due to deregulation in response to the COVID-19 pandemic. However, its current status remains unclear, as it is primarily provided by general practitioners. Meanwhile, telemedicine has begun to be utilized for low-dose estrogen-progestin (LEP) prescriptions for dysmenorrhea. Methods We conducted a retrospective analysis of medical record data from two gynecology clinics and performed an exploratory evaluation between a group that combined telemedicine and in-person visits during the initial 6 months of LEP treatment, and another group with only in-person visits. Results After propensity score matching, 89 and 83 patients were eligible for the telemedicine and in-person groups, respectively, with 53 patients in both. The characteristics of both groups were similar after matching. There were no significant differences in the probability of abnormal uterine bleeding during the first 6 months of treatment (25% and 43% in each group; p = 0.064), side effects, or treatment efficacy between the two groups. The withdrawal rate at 6 months was significantly higher in the telemedicine group than in the in-person group (13% and 0%, p = 0.013). The average copayment for patients who covered 30% of the total cost was also significantly higher in the telemedicine group after 1 and 3 months of LEP prescription. Conclusion The appropriate combination of telemedicine and in-person visits is currently employed in hospital visits, which does not differ significantly from in-person visits. Given the retrospective nature of this study and the limited number of cases, further investigation is necessary in the future.
Collapse
Affiliation(s)
- Yumi Inoo
- Department of Medical Education, Yokohama City University School of Medicine, Yokohama, Japan
- Medley, Inc., Tokyo, Japan
| | - Hiroshi Iida
- Department of Medical Education, Yokohama City University School of Medicine, Yokohama, Japan
| | - Norihito Yoshioka
- The Medical Corporations of Tsuzuki-kai Tsuzuki Ladies' Clinic, Yokohama, Japan
| | - Hideki Koyama
- The Medical Corporations of Ikuju-kai Isogo You Ladies' Clinic, Yokohama, Japan
| | - Yusuke Saigusa
- Department of Biostatistics, Yokohama City University School of Medicine, Yokohama, Japan
| | - Kentaro Kurasawa
- Department of Obstetrics and Gynecology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Masahiko Inamori
- Department of Medical Education, Yokohama City University School of Medicine, Yokohama, Japan
| |
Collapse
|
3
|
Iwata Y, Iwata Y, Iida H, Inamori M, Maeda S. Using a Smartphone Application as a Tool for English Learning Among Medical Staff and Students in Japan. Adv Med Educ Pract 2023; 14:167-182. [PMID: 36880091 PMCID: PMC9985405 DOI: 10.2147/amep.s394625] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
AIM To report on the effects of a smartphone application, among the medical staff and medical students, for learning English as a foreign language. METHODS We conducted an exploratory quasi-experimental study among eight medical staff and 10 medical students in Japan. The participants used an application called ABC Talking (created by ABC Talking Laboratories Inc, currently unavailable due to application renewal), loaded onto their smartphones, to talk with native English speakers from overseas. The participants used the application for five minutes twice a day over five consecutive days as per their convenience. The study collected quantitative and qualitative data using assessments on the participants' listening and speaking skills and questionnaire. The assessment scores of the first five sessions were compared to those of the last five. Average self-assessment scores and teacher assessment scores were compared using a t-test. A paired t-test was performed on quantitative data of the questionnaire, and content analysis was performed on qualitative data. RESULTS More than 80% of the calls were made from home and 70% occurred between 9PM and 1AM. The participants' self-assessment scores on their listening and speaking skills increased significantly from the first five sessions to the last five sessions (14.8-26.1%). However, there was no significant change in the assessments by the teachers (-4.5-2.1%). The self-assessment scores of those with low English proficiency were lower than the teachers' assessment scores. Improvement of communicative self-confidence and communicative competence, two factors that affect willingness to communicate, were seen from the questionnaire. CONCLUSION Using smartphone applications allows on-demand English training, which may be especially useful to medical staff and students who have unpredictable work schedules. Teachers should be aware that learners tend to assess themselves lower than their actual ability so that they can give appropriate feedback to the learners.
Collapse
Affiliation(s)
- Yuri Iwata
- Department of Medical Education, Yokohama City University, Yokohama, Japan
| | - Yumiko Iwata
- Department of English Language, Communication and Cultures, University of the Sacred Heart, Tokyo, Japan
| | - Hiroshi Iida
- Department of Medical Education, Yokohama City University, Yokohama, Japan
| | - Masahiko Inamori
- Department of Medical Education, Yokohama City University, Yokohama, Japan
| | - Shin Maeda
- Department of Gastroenterology, Yokohama City University, Yokohama, Japan
| |
Collapse
|
4
|
Sugaya N, Tomita Y, Funaba M, Iida H, Shirotsuki K, Gardner FC, Odawara T, Ando T, Inamori M. Validity and reliability of the Japanese versions of cognitive and behavioral scales for irritable bowel syndrome. Biopsychosoc Med 2022; 16:15. [PMID: 35871011 PMCID: PMC9308329 DOI: 10.1186/s13030-022-00244-3] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 06/24/2022] [Indexed: 12/02/2022] Open
Abstract
Background The Cognitive Scale for Functional Bowel Disorders (CS-FBD) and Irritable Bowel Syndrome-Behavioral Responses Questionnaire (IBS-BRQ) are a useful measures to assess cognitive-behavioral aspects in individuals with IBS. This study aimed to confirm the reliability and validity of the Japanese versions of the CS-FBD (CS-FBD-J) and IBS-BRQ (IBS-BRQ-J). Methods Participants comprised 192 students and 22 outpatients diagnosed with irritable bowel syndrome (IBS). There were 76 students who met the diagnostic criteria for IBS and two students who received treatment for IBS. Participants completed questionnaires containing the CS-FBD-J, IBS Severity Index (IBS-SI), Visceral Sensitivity Index (VSI), 24-item Dysfunctional Attitudes Scale (DAS-24), Hospital Anxiety and Depression Scale (HADS), and Social Adaptation Self-evaluation Scale (SASS). Results Our exploratory factor analysis revealed that the CS-FBD-J had a unidimensional factor structure and that the factor loadings for two of the 25 items were less than 0.4. The IBS-BRQ-J had a two-factor structure, and the factor loadings for eight of the 26 items were less than 0.4. The confirmatory factor analysis for the 18-item version of IBS-BRQ-J showed that the model fit indices were not sufficient. The CS-FBD-J and IBS-BRQ-J had significant, moderate correlations with the IBS-SI and VSI in the IBS and control groups. Correlation between the DAS-24 and the CS-FBD-J was not significant. The CS-FBD-J and IBS-BRQ-J were significantly correlated to the HADS and SASS (IBS-BRQ-J) only in the IBS group. The scores of CS-FBD-J and IBS-BRQ-J showed significant group differences between the IBS patient group, non-patient IBS group, and control group. The internal consistencies of the CS-FBD-J and IBS-BRQ-J were high. The item-total correlation analysis for the CS-FBD-J and IBS-BRQ-J showed that the correlations between each item and the total score were significant. Conclusion This study confirmed the reliability and validity of the 23-item version of the CS-FBS-J and the 18-item version of the IBS-BRQ-J with the deletion of items with low factor loadings. Regarding the IBS-BRQ-J, two factor structures were confirmed (factor 1: behavior obsessed with abdominal symptoms, factor 2: avoidance of abdominal symptoms and associated difficulties) although the model fit of the structure needs further study. Supplementary Information The online version contains supplementary material available at 10.1186/s13030-022-00244-3.
Collapse
|
5
|
Kunimasa K, Ohashi Y, Okawa M, Iida H, Sonoda S, Hiuge Y, Hachimine M, Yamamura A, Kawamura T, Inoue T, Tamiya M, Kuhara H, Nishino K, Nakamoto N, Kumagai T, Tanigami H. Successful weaning of a patient with severe COVID-19 pneumonia under prolonged midazolam sedation using morphine. Oxf Med Case Reports 2022; 2022:omac051. [PMID: 35769183 PMCID: PMC9235016 DOI: 10.1093/omcr/omac051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 03/30/2022] [Accepted: 04/12/2022] [Indexed: 12/28/2022] Open
Abstract
The coronavirus disease 2019 (COVID-19) pandemic continues to spread around the world. In April 2021, Japan experienced a fourth wave of COVID-19 infections, which led to the breakdown of the medical system. Osaka, Japan, was particularly affected, with many severe cases and the highest number of COVID-19-associated deaths in Japan. Herein, we present a patient with severe COVID-19 infection who received prolonged midazolam (MDZ) treatment since propofol was not available due to shortage of medical resources. Moreover, the duration of mechanical ventilation was extended due to the development of a pneumothorax. When MDZ tapering was initiated, tachypnea was observed, which resulted failure in ventilator weaning. However, the use of continuous morphine infusion led a successful weaning off the ventilator. We suggest that the administration of morphine may allow for a smoother weaning process for some patients with severe COVID-19 infection.
Collapse
Affiliation(s)
- Kei Kunimasa
- Department of Thoracic Oncology , Osaka International Cancer Institute, Osaka, Japan
| | - Yoshifumi Ohashi
- Department of Anesthesiology , Osaka International Cancer Institute, Osaka, Japan
| | - Megumi Okawa
- Department of Anesthesiology , Osaka International Cancer Institute, Osaka, Japan
| | - Hiroshi Iida
- Department of Anesthesiology , Osaka International Cancer Institute, Osaka, Japan
| | - Shunji Sonoda
- Department of Anesthesiology , Osaka International Cancer Institute, Osaka, Japan
| | - Yuki Hiuge
- Department of Anesthesiology , Osaka International Cancer Institute, Osaka, Japan
| | - Masaaki Hachimine
- Department of Anesthesiology , Osaka International Cancer Institute, Osaka, Japan
| | - Ai Yamamura
- Department of Anesthesiology , Osaka International Cancer Institute, Osaka, Japan
| | - Takahisa Kawamura
- Department of Thoracic Oncology , Osaka International Cancer Institute, Osaka, Japan
| | - Takako Inoue
- Department of Thoracic Oncology , Osaka International Cancer Institute, Osaka, Japan
| | - Motohiro Tamiya
- Department of Thoracic Oncology , Osaka International Cancer Institute, Osaka, Japan
| | - Hanako Kuhara
- Department of Thoracic Oncology , Osaka International Cancer Institute, Osaka, Japan
| | - Kazumi Nishino
- Department of Thoracic Oncology , Osaka International Cancer Institute, Osaka, Japan
| | - Naoki Nakamoto
- Department of Emergency and Critical Care , Osaka General Medical Center, Osaka, Japan
| | - Toru Kumagai
- Department of Thoracic Oncology , Osaka International Cancer Institute, Osaka, Japan
| | - Hironobu Tanigami
- Department of Anesthesiology , Osaka International Cancer Institute, Osaka, Japan
| |
Collapse
|
6
|
Ishikawa S, Nikaido M, Otani T, Ogata K, Iida H, Inai Y, Tamaoki S, Inai T. Inhibition of Retinoid X Receptor Improved the Morphology, Localization of Desmosomal Proteins, and Paracellular Permeability in Three-Dimensional Cultures of Mouse Keratinocytes. Microscopy (Oxf) 2022; 71:152-160. [PMID: 35289919 PMCID: PMC9169536 DOI: 10.1093/jmicro/dfac007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 02/04/2022] [Accepted: 02/16/2022] [Indexed: 11/14/2022] Open
Abstract
Retinoic acid (RA) plays an important role in epithelial homeostasis and influences the morphology, proliferation, differentiation and permeability of epithelial cells. Mouse keratinocytes, K38, reconstituted non-keratinized stratified epithelium in three-dimensional (3D) cultures with serum, which contains retinol (a source of RA), but the morphology was different from in vivo epithelium. The formed epithelium was thick, with loosened cell–cell contacts. Here, we investigated whether the inhibition of RA receptor (RAR)/retinoid X receptor (RXR)-mediated signaling by an RXR antagonist, HX 531, improved K38 3D cultures in terms of morphology and intercellular junctions. The epithelium formed by 0.5 μM HX531 was thin, and the intercellular space was narrowed because of the restoration of the layer-specific distribution of desmoglein (DSG)-1, DSG3 and plakoglobin (PG). Moreover, the levels of desmosomal proteins and tight junction proteins, including DSG1, DSG2, DSG3, PG, claudin (CLDN)-1 and CLDN4 increased, but the adherens junction protein, E-cadherin, did not show any change. Furthermore, CLDN1 was recruited to occludin-positive cell–cell contacts in the superficial cells and transepithelial electrical resistance was increased. Therefore, K38 3D cultures treated with 0.5 μM HX531 provides a useful in vitro model to study intercellular junctions in the non-keratinized epithelium.
Collapse
Affiliation(s)
- Shoko Ishikawa
- Department of Oral Growth and Development, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka 814-0193, Japan
| | - Misaki Nikaido
- Department of Odontology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka 814-0193, Japan
| | - Takahito Otani
- Department of Morphological Biology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka 814-0193, Japan
| | - Kayoko Ogata
- Department of Morphological Biology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka 814-0193, Japan
- Oral Medicine Research Center, Fukuoka Dental College, Fukuoka, 814-0193, Japan
| | - Hiroshi Iida
- Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yuko Inai
- Division of General Dentistry, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Sachio Tamaoki
- Department of Oral Growth and Development, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka 814-0193, Japan
| | - Tetsuichiro Inai
- Department of Morphological Biology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka 814-0193, Japan
- Oral Medicine Research Center, Fukuoka Dental College, Fukuoka, 814-0193, Japan
| |
Collapse
|
7
|
Tanaka S, Iida H, Ueno M, Hirokawa F, Yoshida H, Ishii H, Nomi T, Nakai T, Kaibori M, Ikoma H, Noda T, Shinkawa H, Maehira H, Hayami S, Komeda K, Kubo S. Postoperative loss of independence 1 year after liver resection: prospective multicentre study. Br J Surg 2022; 109:e54-e55. [PMID: 35041737 DOI: 10.1093/bjs/znab452] [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] [Received: 04/30/2021] [Accepted: 12/08/2021] [Indexed: 11/14/2022]
Affiliation(s)
- S Tanaka
- Department of Hepato-Biliary-Pancreatic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - H Iida
- Division of Gastrointestinal, Breast, and General Surgery, Department of Surgery, Shiga University of Medical Science, Otsu, Japan
| | - M Ueno
- Second Department of Surgery, Wakayama Medical University, Wakayama, Japan
| | - F Hirokawa
- Department of General and Gastroenterological Surgery, Osaka Medical College, Takatsuki, Osaka, Japan
| | - H Yoshida
- Department of Medical Statistics, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - H Ishii
- Department of Medical Statistics, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - T Nomi
- Department of Surgery, Nara Medical University, Kashihara, Nara, Japan
| | - T Nakai
- Department of Surgery, Faculty of Medicine, Kindai University, Osaka-Sayama, Osaka, Japan
| | - M Kaibori
- Department of Surgery, Hirakata Hospital, Kansai Medical University, Hirakata, Osaka, Japan
| | - H Ikoma
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - T Noda
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - H Shinkawa
- Department of Hepato-Biliary-Pancreatic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - H Maehira
- Division of Gastrointestinal, Breast, and General Surgery, Department of Surgery, Shiga University of Medical Science, Otsu, Japan
| | - S Hayami
- Second Department of Surgery, Wakayama Medical University, Wakayama, Japan
| | - K Komeda
- Department of General and Gastroenterological Surgery, Osaka Medical College, Takatsuki, Osaka, Japan
| | - S Kubo
- Department of Hepato-Biliary-Pancreatic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| |
Collapse
|
8
|
Ogata H, Tsukamoto M, Yamashita K, Iwamori T, Takahashi H, Kaneko T, Iwamori N, Inai T, Iida H. Effects of Calyculin a on the Motility and Protein Phosphorylation in Frozen-Thawed Bull Spermatozoa. Zoolog Sci 2021; 38:531-543. [PMID: 34854285 DOI: 10.2108/zs210046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 08/06/2021] [Indexed: 11/17/2022]
Abstract
In this study, we examined the effects of calyculin A, a phosphatase inhibitor, on motility, protein phosphorylation, and the distribution of phospho-(Ser/Thr) PKA substrates in frozen-thawed bull spermatozoa that are actually used by most farmers for breeding. The data showed that calyculin A, which has been reported to have a positive effect on the motility of ejaculated fresh spermatozoa, distinctly decreased the motility of frozen-thawed bull spermatozoa even if a cell activator, such as caffeine, was present in the incubation medium and that the suppressive effect of calyculin A was dose-dependent and continued for at least 200 min. Immunoblot analyses revealed that de novo protein phosphorylation was not detected in spermatozoa exposed to caffeine or dbcAMP (a cell-permeable cAMP analog), while the addition of calyculin A to the medium brought about the appearance of several phosphorylated proteins at 50 kDa and 75 kDa, suggesting that 50 kDa and 75 kDa proteins, which were phosphorylated by activation of cAMP-dependent PKA, were not dephosphorylated and were accumulated in spermatozoa due to the suppression of calyculin A-sensitive protein phosphatases. Immunofluorescence microscopy revealed that calyculin A caused, alone or in conjunction with caffeine or dbcAMP, the accumulation of phospho-PKA substrates at the annulus, although caffeine or dbcAMP alone did not. This study suggested that calyculin A decreases the motility of frozen-thawed bull spermatozoa concomitant with the accumulation of phospho-(Ser/Thr) PKA substrates at the annulus of flagella.
Collapse
Affiliation(s)
- Honami Ogata
- Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
| | - Mariko Tsukamoto
- Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
| | - Kenichi Yamashita
- Sensing System Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tosu, Saga 841-0052, Japan
| | - Tokuko Iwamori
- Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
| | - Hideyuki Takahashi
- Kuju Agriculture Research Center, Kyushu University, Oita 878-0201, Japan
| | - Takane Kaneko
- Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
| | - Naoki Iwamori
- Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
| | - Tetsuichiro Inai
- Department of Morphological Biology, Fukuoka Dental College, Sawara-ku, Fukuoka 814-0193, Japan
| | - Hiroshi Iida
- Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, Fukuoka 819-0395, Japan,
| |
Collapse
|
9
|
Wang Y, Iwamori T, Kaneko T, Iida H, Iwamori N. Comparative distributions of RSBN1 and methylated histone H4 Lysine 20 in the mouse spermatogenesis. PLoS One 2021; 16:e0253897. [PMID: 34185806 PMCID: PMC8241091 DOI: 10.1371/journal.pone.0253897] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 06/16/2021] [Indexed: 12/15/2022] Open
Abstract
During spermatogenesis, nuclear architecture of male germ cells is dynamically changed and epigenetic modifications, in particular methylation of histones, highly contribute to its regulation as well as differentiation of male germ cells. Although several methyltransferases and demethylases for histone H3 are involved in the regulation of spermatogenesis, roles of either histone H4 lysine 20 (H4K20) methyltransferases or H4K20 demethylases during spermatogenesis still remain to be elucidated. Recently, RSBN1 which is a testis-specific gene expressed in round spermatids was identified as a demethylase for dimethyl H4K20. In this study, therefore, we confirm the demethylase function of RSBN1 and compare distributions between RSBN1 and methylated H4K20 in the seminiferous tubules. Unlike previous report, expression analyses for RSBN1 reveal that RSBN1 is not a testis-specific gene and is expressed not only in round spermatids but also in elongated spermatids. In addition, RSBN1 can demethylate not only dimethyl H4K20 but also trimethyl H4K20 and could convert both dimethyl H4K20 and trimethyl H4K20 into monomethyl H4K20. When distribution pattern of RSBN1 in the seminiferous tubule is compared to that of methylated H4K20, both dimethyl H4K20 and trimethyl H4K20 but not monomethyl H4K20 are disappeared from RSBN1 positive germ cells, suggesting that testis-specific distribution patterns of methylated H4K20 might be constructed by RSBN1. Thus, novel expression and function of RSBN1 could be useful to comprehend epigenetic regulation during spermatogenesis.
Collapse
Affiliation(s)
- Youtao Wang
- Laboratory of Zoology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka-shi, Fukuoka, Japan
| | - Tokuko Iwamori
- Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, Fukuoka-shi, Fukuoka, Japan
| | - Takane Kaneko
- Laboratory of Zoology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka-shi, Fukuoka, Japan
- Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, Fukuoka-shi, Fukuoka, Japan
| | - Hiroshi Iida
- Laboratory of Zoology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka-shi, Fukuoka, Japan
- Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, Fukuoka-shi, Fukuoka, Japan
| | - Naoki Iwamori
- Laboratory of Zoology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka-shi, Fukuoka, Japan
- Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, Fukuoka-shi, Fukuoka, Japan
- * E-mail:
| |
Collapse
|
10
|
Kaai M, Inamori M, Matsuura M, Iwata Y, Iida H, Fujita K, Kusakabe A, Nakajima A. Early effects of acotiamide or mosapride intake on gastric emptying: a randomized 3-way crossover study using the 13C breath test. J Clin Biochem Nutr 2021; 68:264-267. [PMID: 34025031 PMCID: PMC8129981 DOI: 10.3164/jcbn.20-162] [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: 09/27/2020] [Accepted: 10/25/2020] [Indexed: 11/22/2022] Open
Abstract
The effects of acotiamide on gastrointestinal motility have not been sufficiently
investigated. The aim of this study was to determine whether single preprandial acotiamide
or mosapride intake might affect the gastric emptying rate using the 13C breath
test. Here, 11 healthy volunteers participated in a randomized three-way crossover study.
The subjects received acotiamide (100 mg) or mosapride (5 mg) or placebo
before liquid test meal ingestion. Gastric emptying was estimated by determining following
parameters: the time required for 50% emptying of the labeled meal (T1/2), lag time for
10% emptying of the labeled meal (Tlag), gastric emptying coefficient (GEC) and
regression-estimated constants (β and κ). These parameters were calculated from a
13CO2 breath excretion curve using conventional formulas. The
acotiamide, mosapride and placebo conditions were compared, revealing that for gastric
emptying rates (values expressed as median), T1/2 (87.83571 min vs
79.95057 min vs 88.74378 min, p = 0.1496),
Tlag (46.36449 min vs 42.2897 min vs 47.08094 min,
p = 0.4966), GEC (4.382027 vs 4.211441 vs 4.248495,
p = 0.8858), β (1.917728 vs 1.757062 vs 1.869141,
p = 0.4066) and κ (0.834051 vs 0.819820 vs 0.789523,
p = 0.1225) did not significantly differ. In this study,
acotiamide (100 mg) or mosapride (5 mg) had no effect on gastric
emptying.
Collapse
Affiliation(s)
- Megumi Kaai
- Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Kanagawa 215-0026, Japan.,Department of Gastroenterology and Hepatology, Yokohama City University Hospital, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan
| | - Masahiko Inamori
- Department of Medical Education, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan
| | - Mizue Matsuura
- Department of Gastroenterology and Hepatology, Yokohama City University Hospital, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan
| | - Yuri Iwata
- Department of Medical Education, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan
| | - Hiroshi Iida
- Department of Medical Education, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan
| | - Koji Fujita
- Office of Postgraduate Medical Education, Yokohama City University Hospital, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan
| | - Akihiko Kusakabe
- Department of General Medicine, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan
| | - Atsushi Nakajima
- Department of Gastroenterology and Hepatology, Yokohama City University Hospital, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan
| |
Collapse
|
11
|
Iida H, Muto K. Correction to: Japanese insurers' attitudes toward adverse selection and genetic discrimination: a questionnaire survey and interviews with employees about using genetic test results. J Hum Genet 2020; 66:555. [PMID: 33339889 DOI: 10.1038/s10038-020-00886-7] [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: 11/09/2022]
Affiliation(s)
- Hiroshi Iida
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Kaori Muto
- Department of Public Policy, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
| |
Collapse
|
12
|
Kaneko T, Toh S, Mochida I, Iwamori N, Inai T, Iida H. Identification of TMCO2 as an acrosome-associated protein during rat spermiogenesis. Mol Reprod Dev 2020; 87:808-818. [PMID: 32592233 DOI: 10.1002/mrd.23396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 06/08/2020] [Accepted: 06/11/2020] [Indexed: 12/29/2022]
Abstract
We isolated the transmembrane and coiled-coil domains 2 (Tmco2) gene using a polymerase chain reaction-based subtraction technique. Tmco2 is predominantly expressed in rat testes starting from 4 weeks of age. Rat TMCO2 consists of 187 amino acids with a predicted molecular mass of 20.6 kDa. When expressed in COS7 cells, TMCO2 was found as vesicle-like structures in the cytoplasm, whereas TMCO2ΔTM lacking the transmembrane (TM) region was found diffused in the cytoplasm. These results suggest that the TM region in TMCO2 is essential for its specificity of localization. Immunocytochemical analyzes indicated that rat TMCO2 was localized as small semiluminate bodies or cap-like structures in the vicinity of round spermatid nuclei and as curved lines associated with nuclei of elongated spermatids and caput epididymal spermatozoa. However, it was detected in only a small part of cauda epididymal spermatozoa. Double immunolabeling of the spermatids and spermatozoa with the anti-TMCO2 antibody and the monoclonal anti-MN7 antibody showed that TMCO2 was predominantly associated with the inner acrosomal membrane in spermatids and caput epididymal spermatozoa. Our findings suggest that TMCO2 might be involved in the process of acrosome biogenesis, especially binding of acrosome to a nucleus, during spermiogenesis.
Collapse
Affiliation(s)
- Takane Kaneko
- Department of Bioresource Sciences, Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, Fukuoka, Japan
| | - Saori Toh
- Department of Bioresource Sciences, Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, Fukuoka, Japan
| | - Izumi Mochida
- Department of Bioresource Sciences, Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, Fukuoka, Japan
| | - Naoki Iwamori
- Department of Bioresource Sciences, Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, Fukuoka, Japan
| | - Tetsuichiro Inai
- Department of Morphological Biology, Fukuoka Dental College, Fukuoka, Japan
| | - Hiroshi Iida
- Department of Bioresource Sciences, Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, Fukuoka, Japan
| |
Collapse
|
13
|
Miyazono S, Otani T, Ogata K, Kitagawa N, Iida H, Inai Y, Matsuura T, Inai T. The reduced susceptibility of mouse keratinocytes to retinoic acid may be involved in the keratinization of oral and esophageal mucosal epithelium. Histochem Cell Biol 2020; 153:225-237. [PMID: 32006103 DOI: 10.1007/s00418-020-01845-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/14/2020] [Indexed: 10/24/2022]
Abstract
Keratinocytes take up serum-derived retinol (vitamin A) and metabolize it to all-trans-retinoic acid (atRA), which binds to the nuclear retinoic acid receptor (RAR). We previously reported that serum-affected keratinocyte differentiation and function; namely, it inhibited keratinization, decreased loricrin (LOR) and claudin (CLDN) 1 expression, increased keratin (K) 4 and CLDN4 levels, and reduced paracellular permeability in three-dimensional (3D) cultures of mouse keratinocytes (COCA). Contrarily, RAR inhibition reversed these changes. Here, we aimed to examine whether atRA exerted the same effects as serum, and whether it was involved in the differential oral mucosa keratinization among animal species. Porcine oral mucosal keratinocytes, which form non-keratinized epithelium in vivo, established keratinized epithelium in 3D cultures. Both mouse and porcine sera induced non-keratinized epithelium at 0.1% in COCA 3D cultures. Although atRA caused the same changes as serum, its effective concentration differed. atRA inhibited keratinization at 0.1 nM and 1 nM in porcine or human keratinocytes and COCA, respectively. Furthermore, atRA upregulated CLDN7 in the cytoplasm but not in cell-cell contacts. These atRA-induced changes were reverted by RAR inhibition. The results indicate that serum-induced changes are probably due to the effect of serum-derived atRA, and that mouse keratinocytes require higher atRA concentrations to suppress keratinization than porcine and human keratinocytes. We propose that the lower susceptibility of mouse keratinocytes to atRA, rather than a lower retinol concentration, is a possible reason for the keratinization of mouse oral mucosal epithelium.
Collapse
Affiliation(s)
- Shoji Miyazono
- Department of Oral Rehabilitation, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka, 814-0193, Japan
| | - Takahito Otani
- Department of Morphological Biology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka, 814-0193, Japan
| | - Kayoko Ogata
- Department of Morphological Biology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka, 814-0193, Japan
| | - Norio Kitagawa
- Department of Morphological Biology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka, 814-0193, Japan
| | - Hiroshi Iida
- Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Yuko Inai
- Division of General Dentistry, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Takashi Matsuura
- Department of Oral Rehabilitation, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka, 814-0193, Japan
| | - Tetsuichiro Inai
- Department of Morphological Biology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka, 814-0193, Japan.
| |
Collapse
|
14
|
Jono F, Iida H, Fujita K, Kaai M, Kanoshima K, Ohkuma K, Nonaka T, Ida T, Kusakabe A, Nakamura A, Koyama S, Nakajima A, Inamori M. Comparison of computed tomography findings with clinical risks factors for endoscopic therapy in upper gastrointestinal bleeding cases. J Clin Biochem Nutr 2019; 65:138-145. [PMID: 31592208 DOI: 10.3164/jcbn.18-115] [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: 12/27/2018] [Accepted: 02/16/2019] [Indexed: 12/14/2022] Open
Abstract
Several risk scoring systems exist for acute upper gastrointestinal bleeding (UGIB). The clinical Rockall score (clinical RS) and the Glasgow-Blatchford score (GBS) are major risk scores that consider only clinical data. Computed tomography (CT) findings are equivocal in non-variceal UGIB. We compared CT findings with clinical data to predict mortality, rebleeding and need for endoscopic therapy in non-variceal UGIB patients. This retrospective, single-center study included 386 patients admitted to our emergency department with diagnosis of non-variceal UGIB by urgent endoscopy between January 2009 and March 2015. Multivariable logistic regression analysis was used to investigate CT findings and risk factors derived from clinical data. CT findings could not significantly predict mortality and rebleeding in non-variceal UGIB patients. However, upper gastrointestinal hemorrhage in CT findings better predicted the need for endoscopic therapy than clinical data. The adjusted odds ratios were 10.10 (95% CI 5.01-20.40) for clinical RS and 10.70 (95% CI 5.08-22.70) for the GBS. UGI hemorrhage in CT findings could predict the need for endoscopic therapy in non-variceal UGIB patients in our emergency department. CT findings as well as risk score systems may be useful for predicting the need for endoscopic therapy.
Collapse
Affiliation(s)
- Fumitake Jono
- Department of Medical Education, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Hiroshi Iida
- Department of Hepatology and Gastroenterology, Yokohama City University Hospital, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Koji Fujita
- Office of Postgraduate Medical Education, Yokohama City University Hospital, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Megumi Kaai
- Yokohama Hodogaya Central Hospital, 43-1, Kamadai-cho, Hodogaya-ku, Yokohama 240-8585, Japan
| | - Kenji Kanoshima
- Department of Hepatology and Gastroenterology, Yokohama City University Hospital, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Kanji Ohkuma
- Department of Hepatology and Gastroenterology, Yokohama City University Hospital, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Takashi Nonaka
- Department of Hepatology and Gastroenterology, Yokohama City University Hospital, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Tomonori Ida
- Department of Medical Education, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Akihiko Kusakabe
- Office of Postgraduate Medical Education, Yokohama City University Hospital, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Atsushi Nakamura
- Department of Endoscopy and Gastroenterology, Tokyo Metropolitan Hiroo Hospital, 2-34-10 Ebisu, Shibuya-ku, Tokyo 150-0013, Japan
| | - Shigeru Koyama
- Department of Endoscopy and Gastroenterology, Tokyo Metropolitan Hiroo Hospital, 2-34-10 Ebisu, Shibuya-ku, Tokyo 150-0013, Japan
| | - Atsushi Nakajima
- Department of Hepatology and Gastroenterology, Yokohama City University Hospital, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Masahiko Inamori
- Department of Medical Education, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| |
Collapse
|
15
|
Kaneko T, Minohara T, Shima S, Yoshida K, Fukuda A, Iwamori N, Inai T, Iida H. A membrane protein, TMCO5A, has a close relationship with manchette microtubules in rat spermatids during spermiogenesis. Mol Reprod Dev 2019; 86:330-341. [DOI: 10.1002/mrd.23108] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 01/08/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Takane Kaneko
- Laboratory of Zoology; Graduate School of Agriculture; Kyushu University; Fukuoka Japan
| | - Taisuke Minohara
- Laboratory of Zoology; Graduate School of Agriculture; Kyushu University; Fukuoka Japan
| | - Sakurako Shima
- Laboratory of Zoology; Graduate School of Agriculture; Kyushu University; Fukuoka Japan
| | - Kaori Yoshida
- Laboratory of Zoology; Graduate School of Agriculture; Kyushu University; Fukuoka Japan
| | - Atsuko Fukuda
- Laboratory of Zoology; Graduate School of Agriculture; Kyushu University; Fukuoka Japan
| | - Naoki Iwamori
- Laboratory of Zoology; Graduate School of Agriculture; Kyushu University; Fukuoka Japan
| | - Tetsuichiro Inai
- Department of Morphological Biology; Fukuoka Dental College; Fukuoka Japan
| | - Hiroshi Iida
- Laboratory of Zoology; Graduate School of Agriculture; Kyushu University; Fukuoka Japan
| |
Collapse
|
16
|
Inamori M, Iida H, Fujita K. [Functional test of digestive tract]. Nihon Shokakibyo Gakkai Zasshi 2019; 116:801-808. [PMID: 31597878 DOI: 10.11405/nisshoshi.116.801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- Masahiko Inamori
- Department of Medical Education, Yokohama City University School of Medicine
| | - Hiroshi Iida
- Department of Medical Education, Yokohama City University School of Medicine
| | - Koji Fujita
- Department of Medical Education, Yokohama City University School of Medicine
| |
Collapse
|
17
|
Hanaoka H, Iida H, Kiyokawa T, Takakuwa Y, Kawahata K. A positive direct Coombs’ test in the absence of hemolytic anemia predicts high disease activity and poor renal response in systemic lupus erythematosus. Lupus 2018; 27:2274-2278. [DOI: 10.1177/0961203318809182] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We determined the clinical utility of the direct Coombs’ test in the absence of hemolytic anemia as an indicator of disease activity and therapeutic response in systemic lupus erythematosus (SLE). SLE patients without hemolytic anemia who visited our hospital from January 2016 to November 2016 were retrospectively evaluated with a direct Coombs’ test. Clinical features, including SLE disease activity index (SLEDAI), treatment and laboratory findings were analyzed. For patients with lupus nephritis, we additionally evaluated the cumulative complete renal response rate over one year after induction therapy. Among 182 patients evaluated, 10 (5.8%) patients had a positive direct Coombs’ test in the absence of hemolytic anemia. They had a higher SLEDAI ( p < 0.01), higher circulating immune complex levels ( p = 0.01), higher anti-DNA titers ( p < 0.01) and a lower complete renal response rate ( p = 0.03) compared with those who were negative. Multivariate analysis indicated that SLEDAI was an independent factor correlated with the direct Coombs’ test without hemolytic anemia (odds ratio 2.4, 95% confidence interval 1.66–4.98, p < 0.01). A positive direct Coombs’ test in the absence of hemolytic anemia may therefore represent a useful biomarker for assessing disease activity and therapeutic response.
Collapse
Affiliation(s)
- H Hanaoka
- Division of Rheumatology and Allergology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - H Iida
- Division of Rheumatology and Allergology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - T Kiyokawa
- Division of Rheumatology and Allergology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Y Takakuwa
- Division of Rheumatology and Allergology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - K Kawahata
- Division of Rheumatology and Allergology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| |
Collapse
|
18
|
Ozaki A, Otani T, Kitagawa N, Ogata K, Iida H, Kojima H, Inai T. Serum affects keratinization and tight junctions in three-dimensional cultures of the mouse keratinocyte cell line COCA through retinoic acid receptor-mediated signaling. Histochem Cell Biol 2018; 151:315-326. [DOI: 10.1007/s00418-018-1741-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2018] [Indexed: 01/15/2023]
|
19
|
Nakayama H, Kitagawa N, Otani T, Iida H, Anan H, Inai T. Ochratoxin A, citrinin and deoxynivalenol decrease claudin-2 expression in mouse rectum CMT93-II cells. Microscopy (Oxf) 2018; 67:99-111. [PMID: 29474583 DOI: 10.1093/jmicro/dfy005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 01/16/2018] [Indexed: 01/01/2023] Open
Abstract
Intestinal epithelial cells are the first targets of ingested mycotoxins, such as ochratoxin A, citrinin and deoxynivalenol. It has been reported that paracellular permeability regulated by tight junctions is modulated by several mycotoxins by reducing the expression of specific claudins and integral membrane proteins in cell-cell contacts, accompanied by increase in phosphorylation of mitogen-activated protein kinases, including extracellular signal-related kinase (ERK) 1/2, p38 and c-Jun NH2-terminal protein kinase. Claudin-2 is expressed in the deep crypt cells, but not in the villus/surface cells in vivo. While Caco-2, T84 and IPEC-J2 cells, which are widely used intestinal epithelial cell lines to assess the influence of mycotoxins, do not express claudin-2, CMT93-II cells express claudin-2. We previously reported that inhibition of the ERK pathway reduced claudin-2 levels in cell-cell contacts in CMT93-II cells. In this study, we examined whether ochratoxin A, citrinin and deoxynivalenol affect claudin-2 expression and ERK1/2 phosphorylation in CMT93-II cells. We found that all mycotoxins reduced claudin-2 expression in cell-cell contacts, with reduction (by citrinin and deoxynivalenol) or no change (by ochratoxin A) in phosphorylated ERK1/2. All mycotoxins increased transepithelial electrical resistance, but did not affect flux of fluorescein. While ochratoxin A and citrinin are known to be nephrotoxic, only deoxynivalenol reduced claudin-2 expression in MDCK II cells derived from the renal tubule. These results suggest that claudin-2 expression is regulated not only by the ERK pathway, but also by other pathways in an organ-specific manner.
Collapse
Affiliation(s)
- Hideaki Nakayama
- Department of Odontology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka 814-0193, Japan
| | - Norio Kitagawa
- Department of Morphological Biology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka 814-0193, Japan
| | - Takahito Otani
- Department of Morphological Biology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka 814-0193, Japan
| | - Hiroshi Iida
- Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Hisashi Anan
- Department of Odontology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka 814-0193, Japan
| | - Tetsuichiro Inai
- Department of Morphological Biology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka 814-0193, Japan
| |
Collapse
|
20
|
Nakatake R, Iida H, Ishizaki M, Matsui K, Nakamura Y, Kaibori M, Nishizawa M, Okumura T. Metformin has a protective effect through the inhibition of inducible nitric oxide synthase gene expression in hepatocytes. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.2013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
21
|
Bornyakov V, Boyda D, Goy V, Iida H, Molochkov A, Nakamura A, Nikolaev A, Zakharov V, Wakayama M. Lattice QCD at finite baryon density using analytic continuation. EPJ Web Conf 2018. [DOI: 10.1051/epjconf/201818202017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We simulate lattice QCD with two flavors of Wilson fermions at imaginary baryon chemical potential. Results for the baryon number density computed in the confining and deconfining phases at imaginary baryon chemical potential are used to determine the baryon number density and higher cumulants at the real chemical potential via analytical continuation.
Collapse
|
22
|
Ohkuma K, Iida H, Inoh Y, Kanoshima K, Ohkubo H, Nonaka T, Fujita K, Kusakabe A, Inamori M, Nakajima A. Comparison of the early effects of vonoprazan, lansoprazole and famotidine on intragastric pH: a three-way crossover study. J Clin Biochem Nutr 2018; 63:80-83. [PMID: 30087548 PMCID: PMC6064815 DOI: 10.3164/jcbn.17-128] [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: 11/22/2017] [Accepted: 12/27/2017] [Indexed: 12/26/2022] Open
Abstract
To promote symptom relief from acid-related diseases, a medicine with a rapid-onset effect is ideal. The aim of this study was to investigate the early inhibitory effect on gastric acid secretion after a single oral administration of vonoprazan, which represents a new class of proton pump inhibitors, and to compare this effect with those of lansoprazole and famotidine. Ten Helicobacter pylori (HP)-negative male subjects participated in this randomized, three-way crossover study. A single oral administration of vonoprazan (20 mg), lansoprazole (30 mg) or famotidine (20 mg) was performed, and the intragastric pH was continuously monitored for 6 h. Each drug was administered at least seven days apart. The average intragastric pH during the 6-h period after the administration of famotidine was higher than that after the administration of lansoprazole (median: 4.45 vs 2.65; p = 0.0284). A similar result was observed for vonoprazan and lansoprazole (median: 4.30 vs 2.65; p = 0.0322). In conclusions, oral administration of vonoprazan and famotidine in HP-negative healthy male subjects caused the intragastric pH to rise more quickly than did lansoprazole. (Trial Registration: UMIN000020989)
Collapse
Affiliation(s)
- Kanji Ohkuma
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Hiroshi Iida
- Department of Medical Education, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Yumi Inoh
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Kenji Kanoshima
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Hidenori Ohkubo
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Takashi Nonaka
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Koji Fujita
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Akihiko Kusakabe
- Department of General Medicine, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Masahiko Inamori
- Department of Medical Education, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Atsushi Nakajima
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| |
Collapse
|
23
|
Tamura A, Kinoshita H, Kazuno K, Sato H, Murata S, Iida H. [Concomitant Atrial Septal Defect Closure and Repair of Pectus Excavatum in a 50-year-old Patient;Report of a Case]. Kyobu Geka 2018; 71:380-383. [PMID: 29755093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We report a case of atrial septal defect (ASD) with severe pectus excavatum. A 50-year-old female had a stroke due to paradoxical embolism from deep vein thrombosis thorough ASD. Her preoperative computed tomography(CT) revealed a severe pectus excavatum (Haller CT index 28.6). The patient underwent ASD closure and repair of the pectus excavatum concomitantly. Median full sternotomy was performed for ASD closure. And we adopted sterno-costal elevation for pectus excavatum repair. Cartilages of the 3rd to the 7th rib were segmentally resected and the remainders were re-sutured to the sternum. The operation was performed uneventfully. The postoperative echocardiogram revealed no residual shunt. And the deformity of the anterior chest wall was remarkably lessen.
Collapse
Affiliation(s)
- Atsushi Tamura
- Department of Cardiovascular Surgery, Itabashi Chuo Medical Center, Tokyo, Japan
| | | | | | | | | | | |
Collapse
|
24
|
Inoh Y, Kanoshima K, Ohkuma K, Fuyuki A, Uchiyama S, Ohkubo H, Higurashi T, Iida H, Nonaka T, Fujita K, Kusakabe A, Inamori M, Hiroishi K, Nagase H, Nakajima A, Takahara T. Assessment of colonic contents in patients with chronic constipation using MRI. J Clin Biochem Nutr 2018; 62:277-280. [PMID: 29892169 PMCID: PMC5990404 DOI: 10.3164/jcbn.17-104] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 10/10/2017] [Indexed: 12/12/2022] Open
Abstract
Although chronic constipation is common, colonic functional evaluating tests are uncommon. This study examines whether chronic constipation and gastrointestinal symptoms are correlated with the lateral diameter of the colon measured from MRI images. We included chronic constipation patients in a prospective, cross-sectional study using MRI at three centers. We divided 3D MRI colorectal images into 6 segments using with specified sequences and selected the maximum luminal diameter from each segment. We used the GSRS questionnaire to evaluate gastrointestinal symptoms. We evaluated the correlation between luminal diameters and GSRS scores. We found the following positive correlations: descending colon and unsatisfactory defecation symptoms; sigmoid colon and diarrhea; and rectum and constipation. The sum and ratio of the ascending and sigmoid colon diameters correlated with nausea and diarrhea. The sum of the transvers to the sigmoid colon diameter also correlated with nausea and diarrhea. The sum of all segment diameters correlated with nausea and constipation. In conclusion, we showed cross-sectional study of colonic MRI correlate with gastrointestinal symptoms. MRI might be useful for colonic motility evaluations to determine appropriate constipation treatments (Clinical trial registry number UMIN 000021274).
Collapse
Affiliation(s)
- Yumi Inoh
- Department of Hepatology and Gastroenterology, Yokohama City University School of Medicine, Yokohama, Kanagawa 236-0004, Japan
| | - Kenji Kanoshima
- Department of Hepatology and Gastroenterology, Yokohama City University School of Medicine, Yokohama, Kanagawa 236-0004, Japan
| | - Kanji Ohkuma
- Department of Hepatology and Gastroenterology, Yokohama City University School of Medicine, Yokohama, Kanagawa 236-0004, Japan
| | - Akiko Fuyuki
- Department of Hepatology and Gastroenterology, Yokohama City University School of Medicine, Yokohama, Kanagawa 236-0004, Japan
| | - Shiori Uchiyama
- Department of Gastroenterology, Yokohama Rosai Hospital, Yokohama, Kanagawa 222-0036, Japan
| | - Hidenori Ohkubo
- Department of Hepatology and Gastroenterology, Yokohama City University School of Medicine, Yokohama, Kanagawa 236-0004, Japan
| | - Takuma Higurashi
- Department of Hepatology and Gastroenterology, Yokohama City University School of Medicine, Yokohama, Kanagawa 236-0004, Japan
| | - Hiroshi Iida
- Department of Medical Education, Yokohama City University School of Medicine, Yokohama, Kanagawa 236-0004, Japan
| | - Takashi Nonaka
- Department of Hepatology and Gastroenterology, Yokohama City University School of Medicine, Yokohama, Kanagawa 236-0004, Japan
| | - Koji Fujita
- Department of Hepatology and Gastroenterology, Yokohama City University School of Medicine, Yokohama, Kanagawa 236-0004, Japan
| | - Akihiko Kusakabe
- Department of General Medicine, Yokohama City University School of Medicine, Yokohama, Kanagawa 236-0004, Japan
| | - Masahiko Inamori
- Department of Medical Education, Yokohama City University School of Medicine, Yokohama, Kanagawa 236-0004, Japan
| | - Kazumasa Hiroishi
- Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Kanagawa 215-0026, Japan
| | - Hajime Nagase
- Department of Gastroenterology, Yokohama Rosai Hospital, Yokohama, Kanagawa 222-0036, Japan
| | - Atushi Nakajima
- Department of Hepatology and Gastroenterology, Yokohama City University School of Medicine, Yokohama, Kanagawa 236-0004, Japan
| | - Taro Takahara
- Department of Biological Engineering, Tokai University, School of Biological Engineering, Isehara, Kanagawa 259-1193, Japan
| |
Collapse
|
25
|
Sato Y, Ohtsubo H, Nihei N, Kaneko T, Sato Y, Adachi SI, Kondo S, Nakamura M, Mizunoya W, Iida H, Tatsumi R, Rada C, Yoshizawa F. Apobec2 deficiency causes mitochondrial defects and mitophagy in skeletal muscle. FASEB J 2018; 32:1428-1439. [PMID: 29127187 PMCID: PMC5892721 DOI: 10.1096/fj.201700493r] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [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] [Indexed: 02/01/2023]
Abstract
Apobec2 is a member of the activation-induced deaminase/apolipoprotein B mRNA editing enzyme catalytic polypeptide cytidine deaminase family expressed in differentiated skeletal and cardiac muscle. We previously reported that Apobec2 deficiency in mice leads to a shift in muscle fiber type, myopathy, and diminished muscle mass. However, the mechanisms of myopathy caused by Apobec2 deficiency and its physiologic functions are unclear. Here we show that, although Apobec2 localizes to the sarcomeric Z-lines in mouse tissue and cultured myotubes, the sarcomeric structure is not affected in Apobec2-deficient muscle. In contrast, electron microscopy reveals enlarged mitochondria and mitochondria engulfed by autophagic vacuoles, suggesting that Apobec2 deficiency causes mitochondrial defects leading to increased mitophagy in skeletal muscle. Indeed, Apobec2 deficiency results in increased reactive oxygen species generation and depolarized mitochondria, leading to mitophagy as a defensive response. Furthermore, the exercise capacity of Apobec2-/- mice is impaired, implying Apobec2 deficiency results in ongoing muscle dysfunction. The presence of rimmed vacuoles in myofibers from 10-mo-old mice suggests that the chronic muscle damage impairs normal autophagy. We conclude that Apobec2 deficiency causes mitochondrial defects that increase muscle mitophagy, leading to myopathy and atrophy. Our findings demonstrate that Apobec2 is required for mitochondrial homeostasis to maintain normal skeletal muscle function.-Sato, Y., Ohtsubo, H., Nihei, N., Kaneko, T., Sato, Y., Adachi, S.-I., Kondo, S., Nakamura, M., Mizunoya, W., Iida, H., Tatsumi, R., Rada, C., Yoshizawa, F. Apobec2 deficiency causes mitochondrial defects and mitophagy in skeletal muscle.
Collapse
Affiliation(s)
- Yusuke Sato
- Department of Agrobiology and Bioresources, Utsunomiya University, Tochigi, Japan
| | - Hideaki Ohtsubo
- Department of Animal and Marine Bioresource Sciences, Kyushu University, Fukuoka, Japan
| | - Naohiro Nihei
- Department of Agrobiology and Bioresources, Utsunomiya University, Tochigi, Japan
| | - Takane Kaneko
- Department of Animal and Marine Bioresource Sciences, Kyushu University, Fukuoka, Japan
| | - Yoriko Sato
- United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Shin-Ichi Adachi
- Department of Agrobiology and Bioresources, Utsunomiya University, Tochigi, Japan
| | - Shinji Kondo
- Department of Agrobiology and Bioresources, Utsunomiya University, Tochigi, Japan
| | - Mako Nakamura
- Department of Animal and Marine Bioresource Sciences, Kyushu University, Fukuoka, Japan
| | - Wataru Mizunoya
- Department of Animal and Marine Bioresource Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroshi Iida
- Department of Animal and Marine Bioresource Sciences, Kyushu University, Fukuoka, Japan
| | - Ryuichi Tatsumi
- Department of Animal and Marine Bioresource Sciences, Kyushu University, Fukuoka, Japan
| | - Cristina Rada
- Medical Research Council, Laboratory of Molecular Biology, Cambridge, United Kingdom
| | - Fumiaki Yoshizawa
- Department of Agrobiology and Bioresources, Utsunomiya University, Tochigi, Japan.,United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo, Japan
| |
Collapse
|
26
|
Nonaka T, Inamori M, Miyashita T, Inoh Y, Kanoshima K, Higurashi T, Ohkubo H, Iida H, Fujita K, Kusakabe A, Gotoh T, Nakajima A. Can sedation using a combination of propofol and dexmedetomidine enhance the satisfaction of the endoscopist in endoscopic submucosal dissection? Endosc Int Open 2018; 6:E3-E10. [PMID: 29340293 PMCID: PMC5766333 DOI: 10.1055/s-0043-122228] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 09/26/2017] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND AND STUDY AIMS The aim of this pilot randomized controlled trial was to evaluate and compare the satisfaction of the endoscopist along with the effectiveness and safety of sedation between sedation protocol using a combination of propofol (PF) and dexmedetomidine (DEX) (Combination group) and sedation protocol using PF alone (PF group) during gastric endoscopic submucosal dissection (ESD). PATIENTS AND METHODS Fifty-eight patients with gastric neoplasias scheduled for gastric ESD were enrolled and randomly assigned to the two groups. The satisfaction scores of the endoscopists and the parameters for the effectiveness and safety of sedation were evaluated by comparisons between the two groups. RESULTS The satisfaction scores of the endoscopists, which were measured using a visual analogue scale, were significantly higher in the Combination group than in the PF group (88 vs. 69, P = 0.003). The maintenance dose of PF was lower in the Combination group than in the PF group (2 mg/kg/h vs. 5 mg/kg/h, P < 0.001), and the number of rescue PF injections was fewer in the Combination group than in the PF group (2 times vs. 6 times, P < 0.001). The incidence of bradycardia (defined as a pulse rate ≤ 45 bpm) in the Combination group was higher than that in the PF group (37.9 % vs. 10.3 %, P = 0.029). CONCLUSIONS This study suggests that gastroenterologist-directed sedation using a combination of PF and DEX during gastric ESD can enhance the satisfaction levels of endoscopists by providing stable sedation with an acceptable safety profile.
Collapse
Affiliation(s)
- Takashi Nonaka
- Department of Gastroenterology, National Hospital Organization Yokohama Medical Center, Yokohama, Japan,Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Masahiko Inamori
- Department of Medical Education, Yokohama City University School of Medicine, Yokohama, Japan
| | - Tetsuya Miyashita
- Department of Anesthesiology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Yumi Inoh
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Kenji Kanoshima
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Takuma Higurashi
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Hidenori Ohkubo
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Hiroshi Iida
- Department of Medical Education, Yokohama City University School of Medicine, Yokohama, Japan
| | - Koji Fujita
- Office of Postgraduate Medical Education, Yokohama City University Hospital, Yokohama, Japan
| | - Akihiko Kusakabe
- Office of Postgraduate Medical Education, Yokohama City University Hospital, Yokohama, Japan
| | - Takahisa Gotoh
- Department of Anesthesiology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Atsushi Nakajima
- Department of Gastroenterology, National Hospital Organization Yokohama Medical Center, Yokohama, Japan
| |
Collapse
|
27
|
Ohkubo H, Fuyuki A, Arimoto J, Higurashi T, Nonaka T, Inoh Y, Iida H, Inamori M, Kaneda T, Nakajima A. Efficacy of percutaneous endoscopic gastro-jejunostomy (PEG-J) decompression therapy for patients with chronic intestinal pseudo-obstruction (CIPO). Neurogastroenterol Motil 2017. [PMID: 28631871 DOI: 10.1111/nmo.13127] [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] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUNDS Chronic intestinal pseudo-obstruction (CIPO) is an intractable rare digestive disease manifesting persistent small bowel distension without any mechanical cause. Intestinal decompression is a key treatment, but conventional method including a trans-nasal small intestinal tube is invasive and painful. Therefore, a less invasive and tolerable new decompression method is urgently desired. We conducted a pilot study and assessed the efficacy and safety of percutaneous endoscopic gastro-jejunostomy (PEG-J) decompression therapy in CIPO patients. METHODS Seven definitive CIPO patients (2 males and 5 females) were enrolled. All patients received PEG-J decompression therapy. The number of days with any abdominal symptoms in a month (NODASIM), body mass index (BMI), serum albumin level (Alb), and small intestinal volume before and after PEG-J were compared in all patients. RESULTS Percutaneous endoscopic gastro-jejunostomy was well tolerated and oral intake improved in all patients. NODASIM has significantly decreased (24.3 vs 9.3 days/months) and BMI/Alb have significantly increased (14.9 vs 17.2 kg/m2 and 2.6 vs 3.8 g/dL, respectively), whereas total volume of the small intestine has not significantly reduced (4.05 vs 2.59 L, P=.18). Reflux esophagitis and chemical dermatitis were observed in one case but was successfully treated conservatively. CONCLUSIONS & INFERENCES Percutaneous endoscopic gastro-jejunostomy decompression therapy can contribute greatly to improvement of abdominal symptoms and nutritional status in CIPO patients. Although sufficient attention should be paid to acid reflux symptoms, PEG-J has the potential to be a non-invasive novel decompression therapy for CIPO available at home. However, accumulation of more CIPO patients and long-term observation are needed (UMIN000017574).
Collapse
Affiliation(s)
- H Ohkubo
- Hepatology and Gastroenterology Division, Yokohama City University School of Medicine, Yokohama, Japan
| | - A Fuyuki
- Hepatology and Gastroenterology Division, Yokohama City University School of Medicine, Yokohama, Japan
| | - J Arimoto
- Hepatology and Gastroenterology Division, Yokohama City University School of Medicine, Yokohama, Japan
| | - T Higurashi
- Hepatology and Gastroenterology Division, Yokohama City University School of Medicine, Yokohama, Japan
| | - T Nonaka
- Hepatology and Gastroenterology Division, Yokohama City University School of Medicine, Yokohama, Japan
| | - Y Inoh
- Department of Medical Education, Yokohama City University School of Medicine, Yokohama, Japan
| | - H Iida
- Department of Medical Education, Yokohama City University School of Medicine, Yokohama, Japan
| | - M Inamori
- Department of Medical Education, Yokohama City University School of Medicine, Yokohama, Japan
| | - T Kaneda
- Department of Radiology, Yokohama City University School of Medicine, Yokohama, Japan
| | - A Nakajima
- Hepatology and Gastroenterology Division, Yokohama City University School of Medicine, Yokohama, Japan
| |
Collapse
|
28
|
Kaneko T, Toshimori K, Iida H. Subcellular localization of MS4A13 isoform 2 in mouse spermatozoa. Reproduction 2017; 154:843-857. [PMID: 28971897 DOI: 10.1530/rep-17-0477] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 09/11/2017] [Accepted: 10/02/2017] [Indexed: 01/02/2023]
Abstract
To identify upregulated genes during the development of spermatozoa, we performed PCR-selected subtraction analysis of testes RNA samples from 10-day-old and 12-week-old shrews. A transcript, highly homologous to two mouse transcripts, Ms4a13-1 and Ms4a13-2, was differentially regulated. Ms4a13-2, but not Ms4a13-1, was shown to be primarily expressed in mouse testes in an age-dependent manner. Ms4a13-2 cDNA contains an open-reading frame of 522 nucleotides, encoding a protein of 174 amino acids, with predicted molecular mass, 19,345 Da. MS4A13-2 protein was expressed along the periphery of nuclei of round and elongated spermatids (steps 3-16) in adult mouse testes, and in the equatorial region of the heads of fresh mature mouse spermatozoa. In addition, MS4A13-2 was found to localize to the outer acrosomal membrane in the equatorial region of heads in fresh spermatozoa. In acrosome-reacted spermatozoa, the MS4A13-2 expression extended to the entire sperm head including the postacrosomal region and acrosomal cap. MS4A family proteins are known to facilitate intracellular protein-protein interactions as ion channel/adaptor proteins by oligomerization, and have important regulatory roles in cellular growth, survival and activation. We report that the MS4A family member, MS4A13-2, may form oligomers in sperm membranes, which may be involved in an interaction with the zona pellucida or cumulus during fertilization.
Collapse
Affiliation(s)
- Takane Kaneko
- Laboratory of ZoologyGraduate School of Agriculture, Kyushu University, Fukuoka, Japan
| | - Kiyotaka Toshimori
- Future Medicine Research Center and Department of Reproductive Biology and MedicineGraduate School of Medicine, Chiba University, Chiba, Japan
| | - Hiroshi Iida
- Laboratory of ZoologyGraduate School of Agriculture, Kyushu University, Fukuoka, Japan
| |
Collapse
|
29
|
Tone T, Fujisawa N, Seki Y, Iida H, Tachikawa K, Sugihara M, Minato A, Nishio S, Yamamoto T, Kitamura K, Ueda K, Saito S, Shimada R, Matsuda Y, Naruse Y, Shimamoto S, Tamura S, Yoshikawa M, Tomabechi K. Conceptual Design of Fusion Experimental Reactor(FER). ACTA ACUST UNITED AC 2017. [DOI: 10.13182/fst83-a22924] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Tone
- Japan Atomic Energy Research Institute Naka-machi, Naka-gun, Ibaraki-ken, Japan (02929) 5-3111
| | - N. Fujisawa
- Japan Atomic Energy Research Institute Naka-machi, Naka-gun, Ibaraki-ken, Japan (02929) 5-3111
| | - Y. Seki
- Japan Atomic Energy Research Institute Naka-machi, Naka-gun, Ibaraki-ken, Japan (02929) 5-3111
| | - H. Iida
- Japan Atomic Energy Research Institute Naka-machi, Naka-gun, Ibaraki-ken, Japan (02929) 5-3111
| | - K. Tachikawa
- Japan Atomic Energy Research Institute Naka-machi, Naka-gun, Ibaraki-ken, Japan (02929) 5-3111
| | - M. Sugihara
- Japan Atomic Energy Research Institute Naka-machi, Naka-gun, Ibaraki-ken, Japan (02929) 5-3111
| | - A. Minato
- Japan Atomic Energy Research Institute Naka-machi, Naka-gun, Ibaraki-ken, Japan (02929) 5-3111
| | - S. Nishio
- Japan Atomic Energy Research Institute Naka-machi, Naka-gun, Ibaraki-ken, Japan (02929) 5-3111
| | - T. Yamamoto
- Japan Atomic Energy Research Institute Naka-machi, Naka-gun, Ibaraki-ken, Japan (02929) 5-3111
| | - K. Kitamura
- Japan Atomic Energy Research Institute Naka-machi, Naka-gun, Ibaraki-ken, Japan (02929) 5-3111
| | - K. Ueda
- Japan Atomic Energy Research Institute Naka-machi, Naka-gun, Ibaraki-ken, Japan (02929) 5-3111
| | - S. Saito
- Japan Atomic Energy Research Institute Naka-machi, Naka-gun, Ibaraki-ken, Japan (02929) 5-3111
| | - R. Shimada
- Japan Atomic Energy Research Institute Naka-machi, Naka-gun, Ibaraki-ken, Japan (02929) 5-3111
| | - Y. Matsuda
- Japan Atomic Energy Research Institute Naka-machi, Naka-gun, Ibaraki-ken, Japan (02929) 5-3111
| | - Y. Naruse
- Japan Atomic Energy Research Institute Naka-machi, Naka-gun, Ibaraki-ken, Japan (02929) 5-3111
| | - S. Shimamoto
- Japan Atomic Energy Research Institute Naka-machi, Naka-gun, Ibaraki-ken, Japan (02929) 5-3111
| | - S. Tamura
- Japan Atomic Energy Research Institute Naka-machi, Naka-gun, Ibaraki-ken, Japan (02929) 5-3111
| | - M. Yoshikawa
- Japan Atomic Energy Research Institute Naka-machi, Naka-gun, Ibaraki-ken, Japan (02929) 5-3111
| | - K. Tomabechi
- Japan Atomic Energy Research Institute Naka-machi, Naka-gun, Ibaraki-ken, Japan (02929) 5-3111
| |
Collapse
|
30
|
Singhvi M, Zendo T, Iida H, Gokhale D, Sonomoto K. Stimulation of d- and l-lactate dehydrogenases transcriptional levels in presence of diammonium hydrogen phosphate resulting to enhanced lactic acid production by Lactobacillus strain. J Biosci Bioeng 2017; 124:674-679. [PMID: 28800908 DOI: 10.1016/j.jbiosc.2017.07.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 07/07/2017] [Accepted: 07/11/2017] [Indexed: 11/30/2022]
Abstract
The present study revealed the effect of nitrogen sources on lactic acid production and stimulation of d- and l-lactate dehydrogenases (LDH) of parent Lactobacillus lactis NCIM 2368 and its mutant RM2-24 generated after UV mutagenesis. Both the parent and mutant strains were evaluated for d-lactic acid production in control and modified media. The modified media did not show remarkable effect on lactic acid production in case of parent whereas mutant exhibited significant enhancement in d-lactic acid production along with the appearance of l-lactic acid in the broth. Both LDH activities and specific activities were found to be higher in mutant than the parent strain. These results suggested that the diammonium hydrogen phosphate in modified media triggered the expression of LDH genes leading to enhanced lactic acid production. This observation has been proved by studying the expression levels of d- and l-LDH genes of parent and mutant in control and modified media using quantitative RT-PCR technique. In case of mutant, the transcriptional levels of d-LDH and l-LDH increased ∼17 fold and ∼1.38 fold respectively in modified medium compared to the values obtained with control medium. In case of parent, no significant change in transcriptional levels of d- and l-LDH was found when the cells were grown in either control medium or modified medium. This study suggested that the mutant, RM2-24 has l-LDH gene which is expressed in presence of (NH4)2HPO4 resulting in l-lactic acid production. Co-production of l-lactic acid in d-lactic acid fermentation may be detrimental in the PLA production.
Collapse
Affiliation(s)
- Mamata Singhvi
- Laboratory of Microbial Technology, Division of Systems Bioengineering, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University, 6-10-1 Hakozaki, Higashi-Ku, Fukuoka 812-8581, Japan
| | - Takeshi Zendo
- Laboratory of Microbial Technology, Division of Systems Bioengineering, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University, 6-10-1 Hakozaki, Higashi-Ku, Fukuoka 812-8581, Japan
| | - Hiroshi Iida
- Laboratory of Zoology, Division of Agricultural Bioresource Sciences, Department of Bioresource Sciences, Faculty of Agriculture, Graduate School, Kyushu University, Fukuoka 812-8581, Japan
| | - Digambar Gokhale
- NCIM Resource Centre, CSIR-National Chemical Laboratory, Pune 411008, India
| | - Kenji Sonomoto
- Laboratory of Microbial Technology, Division of Systems Bioengineering, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University, 6-10-1 Hakozaki, Higashi-Ku, Fukuoka 812-8581, Japan.
| |
Collapse
|
31
|
Matsuura M, Inamori M, Inou Y, Kanoshima K, Higurashi T, Ohkubo H, Iida H, Endo H, Nonaka T, Kusakabe A, Maeda S, Nakajima A. Lubiprostone improves visualization of small bowel for capsule endoscopy: a double-blind, placebo-controlled 2-way crossover study. Endosc Int Open 2017; 5:E424-E429. [PMID: 28573175 PMCID: PMC5451284 DOI: 10.1055/s-0043-105487] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 02/06/2017] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND AND STUDY AIMS Lubiprostone has been reported to be an anti-constipation drug. The aim of the study was to investigate the usefulness of lubiprostone both for bowel preparation and as a propulsive agent in small bowel endoscopy. PATIENTS AND METHODS This was a double-blind, placebo-controlled, 2-way crossover study of subjects who volunteered to undergo capsule endoscopy (CE). A total of 20 subjects (16 male and 4 female volunteers) were randomly assigned to receive a 24-μg tablet of lubiprostone 120 minutes prior to capsule ingestion for CE (L regimen), or a placebo tablet 120 minutes prior to capsule ingestion for CE (P regimen). Main outcome was gastric transit time (GTT) and small-bowel transit time (SBTT). Secondary outcome was adequacy of small-bowel cleansing and the fluid score in the small bowel. The quality of the capsule endoscopic images and fluid in the small bowel were assessed on 5-point scale. RESULTS The capsule passed into the small bowel in all cases. Median GTT was 57.3 (3 - 221) minutes for the P regimen and 61.3 (10 - 218) minutes for the L regimen ( P = 0.836). Median SBTT was 245.0 (164 - 353) minutes for the P regimen and 228.05 (116 - 502) minutes for the L regimen ( P = 0.501). The image quality score in the small bowel was 3.05 ± 1.08 for the P regimen and 3.80 ± 0.49 for the L regimen ( P < 0.001). The fluid score in the small bowel was 2.04 ± 1.58 for the P regimen and 2.72 ± 1.43 for the L regimen ( P < 0.001). There was a significant difference between the 2 regimens with regard to image quality. The fluid score was more plentiful for the L regimen than for the P regimen. There were no cases of capsule retention or serious adverse events in this study. CONCLUSION Our study showed that use of lubiprostone prior to CE significantly improved visualization of the small bowel during CE as a result of inducing fluid secretion into the small bowel.
Collapse
Affiliation(s)
- Mizue Matsuura
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine
| | - Masahiko Inamori
- Office of Postgraduate Medical Education, Yokohama City University Hospital
| | - Yumi Inou
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine
| | - Kenji Kanoshima
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine
| | - Takuma Higurashi
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine
| | - Hidenori Ohkubo
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine
| | - Hiroshi Iida
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine
| | - Hiroki Endo
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine
| | - Takashi Nonaka
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine
| | - Akihiko Kusakabe
- Department of General Medicine, Yokohama City University School of Medicine
| | - Shin Maeda
- Office of Postgraduate Medical Education, Yokohama City University Hospital
| | - Atsushi Nakajima
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine
| |
Collapse
|
32
|
Matsuyama T, Yabe K, Kuwata C, Ito K, Ando Y, Iida H, Mori K. Transcriptional profile of ethylene glycol monomethyl ether-induced testicular toxicity in rats. Drug Chem Toxicol 2017; 41:105-112. [DOI: 10.1080/01480545.2017.1320406] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Takuya Matsuyama
- Medicinal Safety Research Laboratories, Daiichi Sankyo Co., Ltd, Tokyo, Japan
| | - Koichi Yabe
- Daiichi Sankyo India Pharma Pvt. Ltd, Gurgaon, Haryana, India
| | - Chiharu Kuwata
- Medicinal Safety Research Laboratories, Daiichi Sankyo Co., Ltd, Tokyo, Japan
| | - Kazumi Ito
- Translational Medicine and Clinical Pharmacology Department, Daiichi Sankyo Co., Ltd, Tokyo, Japan
| | - Yosuke Ando
- Medicinal Safety Research Laboratories, Daiichi Sankyo Co., Ltd, Tokyo, Japan
| | - Hiroshi Iida
- Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, Fukuoka, Japan
| | - Kazuhiko Mori
- Medicinal Safety Research Laboratories, Daiichi Sankyo Co., Ltd, Tokyo, Japan
| |
Collapse
|
33
|
Fuyuki A, Ohkubo H, Higurashi T, Iida H, Inoh Y, Inamori M, Nakajima A. Clinical importance of cine-MRI assessment of small bowel motility in patients with chronic intestinal pseudo-obstruction: a retrospective study of 33 patients. J Gastroenterol 2017; 52:577-584. [PMID: 27549243 DOI: 10.1007/s00535-016-1251-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 08/06/2016] [Indexed: 02/04/2023]
Abstract
BACKGROUND Although chronic intestinal pseudo-obstruction (CIPO) is a rare and extremely severe functional digestive disorder, its clinical course and severity show various patterns. We assessed small bowel peristalsis in CIPO patients using cine-MRI (video-motion MRI) and their clinical characteristics to evaluate the clinical importance of performing cine-MRI in patients with this intractable disease. METHODS The medical records of 131 patients referred to our institution with a suspected diagnosis of CIPO between 2010 and 2015 were retrospectively evaluated. Thirty-three patients (22 female/11 male; age range 16-79 years) who met the criteria for CIPO and underwent cine-MRI were enrolled. Mean luminal diameter (MLD), contraction ratio (CR), and contraction cycle (CC) were determined and compared with these parameters in healthy volunteers. Clinical outcomes in patients with CIPO were also evaluated. RESULTS The median follow-up time was 25.2 months (range, 1-65 months). Of the 33 patients with CIPO, 23 (70 %) showed apparently disturbed small intestinal peristalsis, whereas 10 (30 %) did not. The percentage of patients requiring intravenous alimentation was significantly higher (p = 0.03), and the mean serum albumin level was significantly lower (p = 0.04), in patients with than without impaired small intestinal peristalsis. Although both cine-MRI and CT findings in the latter ten cases were within the normal range, MLD and CR differed significantly from healthy volunteers. CONCLUSIONS Cine-MRI is useful in predicting severe clinical features in patients with CIPO, and in detecting slightly impaired small contractility that cannot be detected on CT.
Collapse
Affiliation(s)
- Akiko Fuyuki
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, 3-9 Fuku-ura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Hidenori Ohkubo
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, 3-9 Fuku-ura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Takuma Higurashi
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, 3-9 Fuku-ura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Hiroshi Iida
- Department of Medical Education, Yokohama City University School of Medicine, Yokohama, Japan
| | - Yumi Inoh
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, 3-9 Fuku-ura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Masahiko Inamori
- Department of Medical Education, Yokohama City University School of Medicine, Yokohama, Japan
| | - Atsushi Nakajima
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, 3-9 Fuku-ura, Kanazawa-ku, Yokohama, 236-0004, Japan.
| |
Collapse
|
34
|
Kanoshima K, Matsuura M, Kaai M, Inoh Y, Ohkuma K, Iida H, Nonaka T, Fujita K, Ida T, Kusakabe A, Nakajima A, Inamori M. The α-glucosidase inhibitor voglibose stimulates delayed gastric emptying in healthy subjects: a crossover study with a 13C breath test. J Clin Biochem Nutr 2017; 60:216-218. [PMID: 28584404 PMCID: PMC5453016 DOI: 10.3164/jcbn.16-100] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 12/15/2016] [Indexed: 12/17/2022] Open
Abstract
The gastrointestinal effects of α-glucosidase inhibitors have not been sufficiently investigated. The aim of this study was to determine whether a single dose of pre-prandial voglibose might affect the rate of gastric emptying, determined using the 13C breath test. Ten healthy male volunteers participated in this randomized, two-way crossover study. The subjects fasted overnight and received 0.2 mg voglibose or a placebo 2 h before a test meal. They were then served a liquid test meal consisting of 200 kcal per 200 ml that contained 100 mg 13C-acetate. Breath samples were collected under both conditions until 150 min after the meal. A comparison of the control and voglibose conditions revealed that for gastric emptying rates (with values expressed as median: range), T1/2 [(87.9: 78.0–104.9 min) vs (88.4: 74.3–106.3 min), p = 1], Tlag [(47.1: 39.6–60.1 min) vs (45.4: 31.2–63.3 min), p = 0.432], β [(1.89: 1.68–2.18) vs (1.90: 1.35–2.15), p = 0.846] and κ [(0.81: 0.71–0.98) vs (0.81: 0.50–0.94), p = 0.922] did not significantly differ between conditions. A significant difference between the control and voglibose conditions was found for the GEC [(4.28: 4.09–4.44) vs (4.06: 3.69–4.50), p = 0.0138]. In conclusion, this study demonstrated that the ingestion of oral voglibose led to delayed gastric emptying of a liquid meal.
Collapse
Affiliation(s)
- Kenji Kanoshima
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Mizue Matsuura
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Megumi Kaai
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Yumi Inoh
- Office of Postgraduate Medical Education, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Kanji Ohkuma
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Hiroshi Iida
- Department of Medical Education, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Takashi Nonaka
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Koji Fujita
- Office of Postgraduate Medical Education, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Tomonori Ida
- Department of Medical Education, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Akihiko Kusakabe
- Office of Postgraduate Medical Education, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Atsushi Nakajima
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Masahiko Inamori
- Department of Medical Education, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| |
Collapse
|
35
|
Loughlin MJ, Batistoni P, Konno C, Fischer U, Iida H, Petrizzi L, Polunovskiy E, Sawan M, Wilson P, Wu Y. ITER Nuclear Analysis Strategy and Requirements. Fusion Science and Technology 2017. [DOI: 10.13182/fst56-566] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M J Loughlin
- ITER Organization, Cadarache, 13108 St Paul-lez-Durance, France
| | - P. Batistoni
- Associazione EURATOM-ENEA sulla Fusione, Frascati (Roma), Italy
| | - C. Konno
- Japan Atomic Energy Agency, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
| | - U. Fischer
- Association FZK-Euratom, Forschungszentrum Karlsruhe, D-76021 Karlsruhe, Germany
| | - H. Iida
- Japan Atomic Energy Agency, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
| | - L. Petrizzi
- Associazione EURATOM-ENEA sulla Fusione, Frascati (Roma), Italy
| | - E. Polunovskiy
- ITER Organization, Cadarache, 13108 St Paul-lez-Durance, France
| | - M. Sawan
- University of Wisconsin, Madison, WI USA
| | - P. Wilson
- University of Wisconsin, Madison, WI USA
| | - Y. Wu
- Academy of Sciences Institute of Plasma Physics, China
| |
Collapse
|
36
|
Fischer U, Iida H, Li Y, Loughlin M, Sato S, Serikov A, Tsige-Tamirat T, Tautges T, Wilson PP, Wu Y. Use of CAD Generated Geometry Data in Monte Carlo Transport Calculations for ITER. Fusion Science and Technology 2017. [DOI: 10.13182/fst09-a8991] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- U. Fischer
- Association FZK-Euratom, Forschungszentrum Karlsruhe, D-76021 Karlsruhe, Germany
| | - H. Iida
- Japan Atomic Energy Agency, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
| | - Y. Li
- Academy of Sciences, Institute of Plasma Physics, Hefei, Anhui, 230031, P. R. China
| | - M. Loughlin
- ITER Organization, CS 90 046, 13067 St. Paul lez Durance Cedex, France
| | - S. Sato
- Japan Atomic Energy Agency, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
| | - A. Serikov
- Association FZK-Euratom, Forschungszentrum Karlsruhe, D-76021 Karlsruhe, Germany
| | - T. Tsige-Tamirat
- Association FZK-Euratom, Forschungszentrum Karlsruhe, D-76021 Karlsruhe, Germany
| | - T. Tautges
- Argonne National Laboratory, Argonne, IL 60439, USA
| | - P. P. Wilson
- University of Wisconsin-Madison, 1500 Engineering Dr, Madison, WI 53706, USA
| | - Y. Wu
- Association FZK-Euratom, Forschungszentrum Karlsruhe, D-76021 Karlsruhe, Germany
| |
Collapse
|
37
|
Sakata K, Yoshimura N, Tanabe K, Kito K, Nagase K, Iida H. Prediction of hypotension during spinal anesthesia for elective cesarean section by altered heart rate variability induced by postural change. Int J Obstet Anesth 2017; 29:34-38. [DOI: 10.1016/j.ijoa.2016.09.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 09/12/2016] [Accepted: 09/17/2016] [Indexed: 10/21/2022]
|
38
|
Yokohata E, Kuwatsuka Y, Ohashi H, Terakura S, Kawashima N, Seto A, Kurahashi S, Ozawa Y, Goto T, Imahashi N, Nishida T, Miyao K, Sakemura R, Kato T, Sawa M, Kohno A, Sao H, Iida H, Kiyoi H, Naoe T, Miyamura K, Murata M. Impact of T-cell chimerism on relapse after cord blood transplantation for hematological malignancies: Nagoya Blood and Marrow Transplantation Group study. Bone Marrow Transplant 2017; 52:612-614. [PMID: 28067879 DOI: 10.1038/bmt.2016.323] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- E Yokohata
- Department of Hematology, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
| | - Y Kuwatsuka
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
| | - H Ohashi
- Department of Hematology, National Hospital Organization Nagoya Medical Center, Nagoya, Japan.,Division of Hematology, Toyota Memorial Hospital, Toyota, Japan
| | - S Terakura
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - N Kawashima
- Department of Hematology, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
| | - A Seto
- Department of Hematology, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan.,Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - S Kurahashi
- Department of Hematology, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
| | - Y Ozawa
- Department of Hematology, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
| | - T Goto
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - N Imahashi
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Nishida
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - K Miyao
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
| | - R Sakemura
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
| | - T Kato
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
| | - M Sawa
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
| | - A Kohno
- Department of Hematology and Oncology, JA Aichi Konan Kosei Hospital, Konan, Japan
| | - H Sao
- Department of Hematology, Meitetsu Hospital, Nagoya, Japan
| | - H Iida
- Department of Hematology, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - H Kiyoi
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Naoe
- Department of Hematology, National Hospital Organization Nagoya Medical Center, Nagoya, Japan.,Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - K Miyamura
- Department of Hematology, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
| | - M Murata
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| |
Collapse
|
39
|
Iida H, Kaai M, Inoh Y, Kanoshima K, Ohkuma K, Nonaka T, Fujita K, Ida T, Kusakabe A, Maeda S, Nakajima A, Inamori M. Early effect on intragastric pH of oral administration of rabeprazole with mosapride compared with rabeprazole alone. Ann Gastroenterol 2017; 30:424-428. [PMID: 28655978 PMCID: PMC5479994 DOI: 10.20524/aog.2017.0161] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 03/13/2017] [Indexed: 11/20/2022] Open
Abstract
Background An ideal medication for acid-related diseases would offer prompt stopping of blood flow as well as efficient symptom resolution. The aim of this study was to investigate the gastric acid suppression potency of a single oral dose of rabeprazole alone, compared with administration of rabeprazole plus mosapride. Methods Twelve male volunteers, Helicobacter pylori (H. pylori)-negative, participated in this randomized, three-way crossover study. After a single oral administration of rabeprazole, rabeprazole with mosapride, or rabeprazole administered 1 h after mosapride, we monitored their intragastric pH constantly for 6 h. A 7-day washout period was allowed between each administration. Results The median 6-h intragastric pH after the administration of rabeprazole 1 h after mosapride was 4.41±1.22 (mean±s.d.), significantly higher than after rabeprazole alone 3.45±1.33, P=0.0376). There was no significant difference between the median 6-h pH after the administration of rabeprazole plus mosapride and that after rabeprazole alone (3.81±0.98 vs. 3.45±1.33, respectively; P=0.0927). Conclusion An oral dose of rabeprazole administered 1 h after mosapride increased the intragastric pH more rapidly than rabeprazole alone, in healthy, male, H. pylori-negative volunteers.
Collapse
Affiliation(s)
- Hiroshi Iida
- Department of Medical Education (Hiroshi Iida, Tomonori Ida, Masahiko Inamori)
| | - Megumi Kaai
- Department of Hepatology and Gastroenterology (Megumi Kaai, Kenji Kanoshima, Kanji Ohkuma, Takashi Nonaka, Atsushi Nakajima)
| | - Yumi Inoh
- Office of Postgraduate Medical Education (Yumi Inoh, Koji Fujita, Akihiko Kusakabe, Shin Maeda), Yokohama City University School of Medicine, Yokohama, Japan
| | - Kenji Kanoshima
- Department of Hepatology and Gastroenterology (Megumi Kaai, Kenji Kanoshima, Kanji Ohkuma, Takashi Nonaka, Atsushi Nakajima)
| | - Kanji Ohkuma
- Department of Hepatology and Gastroenterology (Megumi Kaai, Kenji Kanoshima, Kanji Ohkuma, Takashi Nonaka, Atsushi Nakajima)
| | - Takashi Nonaka
- Department of Hepatology and Gastroenterology (Megumi Kaai, Kenji Kanoshima, Kanji Ohkuma, Takashi Nonaka, Atsushi Nakajima)
| | - Koji Fujita
- Office of Postgraduate Medical Education (Yumi Inoh, Koji Fujita, Akihiko Kusakabe, Shin Maeda), Yokohama City University School of Medicine, Yokohama, Japan
- Correspondence to: Koji Fujita, Office of Postgraduate Medical Education, Yokohama City University Hospital, 3-9 Fukuura, Kanazawa-ku, Yokohama, Japan, Tel.: +81 45 787 2640, Fax: +81 45 784 3546, e-mail:
| | - Tomonori Ida
- Department of Medical Education (Hiroshi Iida, Tomonori Ida, Masahiko Inamori)
| | - Akihiko Kusakabe
- Office of Postgraduate Medical Education (Yumi Inoh, Koji Fujita, Akihiko Kusakabe, Shin Maeda), Yokohama City University School of Medicine, Yokohama, Japan
| | - Shin Maeda
- Office of Postgraduate Medical Education (Yumi Inoh, Koji Fujita, Akihiko Kusakabe, Shin Maeda), Yokohama City University School of Medicine, Yokohama, Japan
| | - Atsushi Nakajima
- Department of Hepatology and Gastroenterology (Megumi Kaai, Kenji Kanoshima, Kanji Ohkuma, Takashi Nonaka, Atsushi Nakajima)
| | - Masahiko Inamori
- Department of Medical Education (Hiroshi Iida, Tomonori Ida, Masahiko Inamori)
| |
Collapse
|
40
|
Tsukamoto M, Hiyama E, Hirotani K, Gotoh T, Inai T, Iida H. Translocation of Tektin 3 to the equatorial segment of heads in bull spermatozoa exposed to dibutyryl cAMP and calyculin A. Mol Reprod Dev 2016; 84:30-43. [PMID: 27883267 DOI: 10.1002/mrd.22763] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 11/17/2016] [Indexed: 11/06/2022]
Abstract
Tektins (TEKTs) are filamentous proteins associated with microtubules in cilia, flagella, basal bodies, and centrioles. Five TEKTs (TEKT1, -2, -3, -4, and -5) have been identified as components of mammalian sperm flagella. We previously reported that TKET1 and -3 are also present in the heads of rodent spermatozoa. The present study clearly demonstrates that TEKT2 is present at the acrosome cap whereas TEKT3 resides just beneath the plasma membrane of the post-acrosomal region of sperm heads in unactivated bull spermatozoa, and builds on the distributional differences of TEKT1, -2, and -3 on sperm heads. We also discovered that hyperactivation of bull spermatozoa by cell-permeable cAMP and calyculin A, a protein phosphatase inhibitor, promoted translocation of TEKT3 from the post-acrosomal region to the equatorial segment in sperm heads, and that TEKT3 accumulated at the equatorial segment is lost upon acrosome reaction. Thus, translocation of TEKT3 to the equatorial segment may be a capacitation- or hyperactivation-associated phenomenon in bull spermatozoa. Mol. Reprod. Dev. 84: 30-43, 2017. © 2016 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Mariko Tsukamoto
- Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, Fukuoka, Japan
| | - Erina Hiyama
- Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, Fukuoka, Japan
| | - Karen Hirotani
- Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, Fukuoka, Japan
| | - Takafumi Gotoh
- Kuju Agriculture Research Center, Kyushu University, Oita, Japan
| | - Tetsuichiro Inai
- Department of Morphological Biology, Fukuoka Dental College, Fukuoka, Japan
| | - Hiroshi Iida
- Laboratory of Zoology, Graduate School of Agriculture, Kyushu University, Fukuoka, Japan
| |
Collapse
|
41
|
Nonaka T, Inamori M, Honda Y, Kanoshima K, Inoh Y, Matsuura M, Uchiyama S, Sakai E, Higurashi T, Ohkubo H, Iida H, Endo H, Fujita K, Kusakabe A, Atsukawa K, Takahashi H, Tateishi Y, Maeda S, Ohashi K, Nakajima A. Can magnifying endoscopy with narrow-band imaging discriminate between carcinomas and low grade adenomas in gastric superficial elevated lesions? Endosc Int Open 2016; 4:E1203-E1210. [PMID: 27853747 PMCID: PMC5110354 DOI: 10.1055/s-0042-117632] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 09/09/2016] [Indexed: 02/08/2023] Open
Abstract
UNLABELLED Background and study aims: The aim of this study was to investigate the capability of magnifying endoscopy with narrow-band imaging (ME-NBI) to discriminate between early carcinomas (EC) and low grade adenomas (LGA) in gastric superficial elevated epithelial neoplasias. Patients and methods: We investigated 100 consecutive cases of gastric superficial elevated epithelial neoplasias that were removed using endoscopic submucosal dissection. The pathological diagnostic criteria were based on the revised Vienna classification; category 4 (mucosal high grade neoplasia) and category 5 (submucosal invasion by carcinoma) lesions were diagnosed as EC, whereas category 3 (mucosal low grade neoplasia) lesions were diagnosed as LGA. The associations between the postoperative pathological diagnoses and the ME-NBI findings were analyzed, and included the shape, specification, and area of irregularity in the microvascular architecture (MV) and the microsurface structure (MS). Results: Seventy-nine EC and 21 LGA cases diagnosed postoperatively were evaluated retrospectively. The lesion size (median; range (mm)) was significantly larger in the EC group (14; 2 - 95) compared to the LGA group (5; 2 - 16) (P < 0.001). Wavy forms in the MV shapes (P = 0.031), extension in the MV specifications (P = 0.035), and area with MV irregularity (P = 0.001) were found to be statistically significant predictive findings for EC. Villous forms in the MS shapes (P = 0.026), enlargement in the MS specifications (P = 0.044), and area with MS irregularity (P = 0.021) were also found to be statistically significant predictive findings for EC. The rates of preoperative sensitivity, specificity, and diagnostic accuracy of ME-NBI for discriminating EC were 86.1 %, 38.9 %, and 75 %, respectively. Conclusions: The present study suggests that ME-NBI is useful for the differential diagnosis of EC and LGA in gastric superficial elevated epithelial neoplasias. STUDY REGISTRATION UMIN000012925.
Collapse
Affiliation(s)
- Takashi Nonaka
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Masahiko Inamori
- Department of Medical Education, Yokohama City University School of Medicine, Yokohama, Japan,Corresponding author Masahiko Inamori, MD PhD Department of Medical EducationYokohama City University School of Medicine3-9 FukuuraKanazawa-kuYokohama236-0004Japan+81-45-7843546
| | - Yasushi Honda
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Kenji Kanoshima
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Yumi Inoh
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Mizue Matsuura
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Shiori Uchiyama
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Eiji Sakai
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Takuma Higurashi
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Hidenori Ohkubo
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Hiroshi Iida
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Hiroki Endo
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Koji Fujita
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Akihiko Kusakabe
- Department of Medical Education, Yokohama City University School of Medicine, Yokohama, Japan
| | - Kazuhiro Atsukawa
- Department of Gastroenterology, Hiratsuka City Hospital, Hiratsuka, Kanagawa, Japan
| | - Hisao Takahashi
- Department of Gastroenterology, Hiratsuka City Hospital, Hiratsuka, Kanagawa, Japan
| | - Yoko Tateishi
- Department of Pathology, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Shin Maeda
- Department of Medical Education, Yokohama City University School of Medicine, Yokohama, Japan
| | - Kenichi Ohashi
- Department of Pathology, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Atsushi Nakajima
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| |
Collapse
|
42
|
Kawamura O, Kohata Y, Kawami N, Iida H, Kawada A, Hosaka H, Shimoyama Y, Kuribayashi S, Fujiwara Y, Iwakiri K, Inamori M, Kusano M, Hongo M. Liquid-containing Refluxes and Acid Refluxes May Be Less Frequent in the Japanese Population Than in Other Populations: Normal Values of 24- hour Esophageal Impedance and pH Monitoring. J Neurogastroenterol Motil 2016; 22:620-629. [PMID: 27247103 PMCID: PMC5056571 DOI: 10.5056/jnm15195] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Revised: 02/16/2016] [Accepted: 04/09/2016] [Indexed: 12/11/2022] Open
Abstract
Background/Aims Twenty-four-hour esophageal impedance and pH monitoring allows detection of all types of reflux episodes and is considered the best technique for identifying gastroesophageal refluxes. However, normative data for the Japanese population are lacking. This multicenter study aimed to establish the normal range of 24-hour esophageal impedance and pH data both in the distal and the proximal esophagus in Japanese subjects. Methods Forty-two healthy volunteers (25 men and 17 women) with a mean ± standard deviation age of 33.3 ± 12.4 years (range: 22–72 years) underwent a combined 24-hour esophageal impedance and pH monitoring. According to the physical and pH properties, distal or proximal esophageal reflux events were categorized. Results Median 45 reflux events occurred in 24 hours, and the 95th percentile was 85 events. Unlike previous reports, liquid-containing reflux events are median 25/24 hours with the 95th percentile of 62/24 hours. Acidic reflux events were median 11/24 hours with the 95th percentile of 39/24 hours. Non-acidic gas reflux events were median 15/24 hours with the 95th percentile of 39/24 hours. Proximal reflux events accounted for 80% of the total reflux events and were mainly non-acidic gas refluxes. About 19% of liquid and mixed refluxes reached the proximal esophagus. Conclusions Unlike previous studies, liquid-containing and acidic reflux events may be less frequent in the Japanese population. Non-acidic gas reflux events may be frequent and a cause of frequent proximal reflux events. This study provides important normative data for 24-hour impedance and pH monitoring in both the distal and the proximal esophagus in the Japanese population.
Collapse
Affiliation(s)
- Osamu Kawamura
- Department of Gastroenterology and Hepatology, Gunma University Hospital, Maebashi, Japan
| | - Yukie Kohata
- Department of Gastroenterology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Noriyuki Kawami
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Tokyo, Japan
| | - Hiroshi Iida
- Department of Medical Education, Yokohama City University School of Medicine, Yokohama, Japan
| | - Akiyo Kawada
- Department of Gastroenterology and Hepatology, Gunma University Hospital, Maebashi, Japan
| | - Hiroko Hosaka
- Department of Gastroenterology and Hepatology, Gunma University Hospital, Maebashi, Japan
| | - Yasuyuki Shimoyama
- Department of Gastroenterology and Hepatology, Gunma University Hospital, Maebashi, Japan
| | - Shiko Kuribayashi
- Department of Gastroenterology and Hepatology, Gunma University Hospital, Maebashi, Japan
| | - Yasuhiro Fujiwara
- Department of Gastroenterology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Katsuhiko Iwakiri
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Tokyo, Japan
| | - Masahiko Inamori
- Office of Postgraduate Medical Education, Yokohama City University Hospital, Yokohama, Japan
| | - Motoyasu Kusano
- Department of Gastroenterology and Hepatology, Gunma University Hospital, Maebashi, Japan
| | | |
Collapse
|
43
|
Morita Y, Matsuda S, Akashi S, Iida H. A Rare Case of Shoshin Beriberi That Occurred in a Schizophrenia Patient. J Card Fail 2016. [DOI: 10.1016/j.cardfail.2016.07.353] [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]
|
44
|
Yamada Y, Yoshimura N, Yamaguchi S, Tanabe K, Iida H. Abstract PR515. Anesth Analg 2016. [DOI: 10.1213/01.ane.0000492899.23165.be] [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: 11/05/2022]
|
45
|
Howida A, Salaheldeen E, Iida H. Molecular Cloning of Spergen-4, Encoding a Spermatogenic Cell-Specific Protein Associated with Sperm Flagella and the Acrosome Region in Rat Spermatozoa. Zoolog Sci 2016; 33:195-203. [PMID: 27032685 DOI: 10.2108/zs150104] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We used a differential display in combination with complementary DNA (cDNA) cloning approach to isolate a novel rat gene LOC690919 with an open reading frame of 1227-length nucleotides encoding a protein of 409 amino acids. This gene was designated as Spergen-4 (a spermatogenic cell-specific gene-4). Spergen-4 mRNA was highly expressed in testis, and its expression was detected in rat testis starting at three weeks of postnatal development and persisting up to adulthood. Mouse and human orthologs, which lack N-terminal 77 amino acid residues of rat Spegen-4, were found in the database. Immunofluorescence microscopy and immunoblot analysis demonstrated that Spergen-4 was not expressed in spermatogonia, spermatocytes, and round spermatids, but was restrictedly detected at sperm head, cytoplasm, and developing flagella of elongated spermatids in rat testis. In mature spermatozoa, Spergen-4 was detected at the acrosome region as well as the principal piece of flagella. Spergen-4 immunosignal disappeared from sperm heads on acrosome reaction induced by progesterone. These data suggest that Spergen-4 integrated into elongated spermatids during spermiogenesis serves as a constituent for acrosome region and flagella of rat spermatozoa.
Collapse
Affiliation(s)
- Ali Howida
- 1 Laboratory of Zoology, Graduate School of Agriculture, Kyushu University,Higashiku Hakozaki 6-10-1, Fukuoka 812-8581, Japan.,2 Zoology Department, Faculty of Science, Sohag University, Sohag, Naser City, Egypt, PO. 82524
| | - Elsaid Salaheldeen
- 1 Laboratory of Zoology, Graduate School of Agriculture, Kyushu University,Higashiku Hakozaki 6-10-1, Fukuoka 812-8581, Japan.,2 Zoology Department, Faculty of Science, Sohag University, Sohag, Naser City, Egypt, PO. 82524
| | - Hiroshi Iida
- 1 Laboratory of Zoology, Graduate School of Agriculture, Kyushu University,Higashiku Hakozaki 6-10-1, Fukuoka 812-8581, Japan
| |
Collapse
|
46
|
Uchino G, Ohashi T, Iida H, Tadakoshi M, Kageyama S, Furui M, Kodani N. Predictors of patent false lumen of the aortic arch after hemiarch replacement. Gen Thorac Cardiovasc Surg 2016; 64:722-727. [DOI: 10.1007/s11748-016-0691-7] [Citation(s) in RCA: 7] [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: 06/06/2016] [Accepted: 07/20/2016] [Indexed: 11/30/2022]
|
47
|
Inada R, Murotani K, Iwamoto S, Kaibori M, Ishizaki M, Iida H, Matsui K, Oishi M, Mastumoto T, Michiura T, Inoue K, Mishima H, Kon M, Hamada M. P-062 Correlation of histological Tumor Regression Grading (TRG) with radiological response and long-term outcome after preoperative chemotherapy for Colorectal Liver Metastases: a propensity score matching analysis. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw199.60] [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
|
48
|
Kodani N, Ohashi T, Iida H, Kageyama S, Furui M, Uchino G. Emergency Pulmonary Embolectomy Using Minimally Invasive Cardiac Surgery. Ann Thorac Surg 2016; 101:1569-71. [DOI: 10.1016/j.athoracsur.2015.04.152] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 04/07/2015] [Accepted: 04/15/2015] [Indexed: 10/22/2022]
|
49
|
Nonaka T, Inamori M, Miyashita T, Harada S, Inoh Y, Kanoshima K, Matsuura M, Higurashi T, Ohkubo H, Iida H, Endo H, Kusakabe A, Maeda S, Gotoh T, Nakajima A. Feasibility of deep sedation with a combination of propofol and dexmedetomidine hydrochloride for esophageal endoscopic submucosal dissection. Dig Endosc 2016; 28:145-51. [PMID: 26476104 DOI: 10.1111/den.12559] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [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: 05/15/2015] [Revised: 09/07/2015] [Accepted: 10/14/2015] [Indexed: 12/23/2022]
Abstract
BACKGROUND AND AIM The aim of the present study was to evaluate the efficacy and safety of sedation with a combination of propofol (PF) and dexmedetomidine (DEX) compared with sedation with benzodiazepines in esophageal endoscopic submucosal dissection (ESD). METHODS We retrospectively reviewed clinical data for 40 consecutive patients who had undergone esophageal ESD at the Yokohama City University Hospital between July 2012 and August 2014. Of these patients, 20 were sedated with benzodiazepines (conventional group) and another 20 patients were sedated with a combination of PF and DEX (combination group). Parameters for efficacy and safety of sedation were evaluated by comparisons between the two groups. RESULTS Median procedural times in the combination group were shorter than those in the conventional group (61 min vs. 89 min, P = 0.03), and the percentage of patients who showed restlessness in the combination group was significantly lower than that in the conventional group (25% vs. 65%, P = 0.025). Incidences of hypotension and bradycardia in the combination group were higher than those in the conventional group (60% vs. 15%, P = 0.008, and 60% vs. 15%, P = 0.008, respectively). CONCLUSION This retrospective study suggests that a combination of PF and DEX may provide stable deep sedation with less body movement than benzodiazepines during esophageal ESD.
Collapse
Affiliation(s)
- Takashi Nonaka
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Masahiko Inamori
- Office of Postgraduate Medical Education, Yokohama City University Hospital, Yokohama, Japan
| | - Tetsuya Miyashita
- Department of Anesthesiology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Shinsuke Harada
- Department of Anesthesiology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Yumi Inoh
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Kenji Kanoshima
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Mizue Matsuura
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Takuma Higurashi
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Hidenori Ohkubo
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Hiroshi Iida
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Hiroki Endo
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Akihiko Kusakabe
- Office of Postgraduate Medical Education, Yokohama City University Hospital, Yokohama, Japan
| | - Shin Maeda
- Office of Postgraduate Medical Education, Yokohama City University Hospital, Yokohama, Japan
| | - Takahisa Gotoh
- Department of Anesthesiology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Atsushi Nakajima
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Yokohama, Japan
| |
Collapse
|
50
|
Nonaka T, Inamori M, Kanoshima K, Ohkuma K, Inoh Y, Matsuura M, Fuyuki A, Uchiyama S, Higurashi T, Ohkubo H, Iida H, Endo H, Tateishi Y, Kusakabe A, Ohashi K, Maeda S, Nakajima A. Evaluation of endoscopic findings for discriminating between early carcinomas and low-grade adenomas in superficial elevated gastric lesions. Turk J Gastroenterol 2016; 27:108-14. [PMID: 26853793 DOI: 10.5152/tjg.2015.150359] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND/AIMS This study aimed to determine the useful endoscopic findings in a differential diagnosis between early carcinomas (EC) and low-grade adenomas (LGA) in superficial elevated gastric epithelial neoplasia during conventional endoscopy with white-light imaging (C-WLI). MATERIALS AND METHODS We investigated 270 consecutive cases of superficial elevated gastric epithelial neoplasias, which were removed by endoscopic submucosal dissection. The pathological diagnostic criteria were based on the revised Vienna classification: category 4 (mucosal high-grade neoplasia) or 5 (submucosal invasion by carcinoma) lesions were diagnosed as EC, while category 3 (mucosal low-grade neoplasia) lesions were diagnosed as LGA. The association between the postoperative pathological diagnoses (EC or LGA) and the following endoscopic findings: localized site, lesion size, color (reddish or whitish), shape (smooth, petal, or irregular), and presences of depression, erosion, ulceration, or nodularity on the surface, were evaluated. RESULTS Of 270 epithelial neoplasias, 222 (58 LGA and 164 EC) were retrospectively evaluated. Multiple logistic regression analysis revealed that the lesion size [odds ratio (OR), 1.216; p<0.001) and reddish color (OR, 5.274; p<0.001) were independent findings for EC. CONCLUSION The lesion size and reddish color were useful optical findings for discriminating between EC and LGA.
Collapse
Affiliation(s)
- Takashi Nonaka
- Division of Gastroenterology, Yokohama City University Hospital, Yokohama, Japan.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|