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Yamamoto I, Michishita M, Fujita K, Sakai T, Sasaki N, Kawasumi K. Molecular characterization of GPR84 in domestic cats. Gen Comp Endocrinol 2024; 353:114520. [PMID: 38641150 DOI: 10.1016/j.ygcen.2024.114520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 04/08/2024] [Accepted: 04/11/2024] [Indexed: 04/21/2024]
Abstract
G protein-coupled receptor 84 (GPR84) was cloned as an orphan receptor, and medium-chain fatty acids were then revealed as endogenous ligands. GPR84 is expressed in immune cells and is believed to protect liver function from lipotoxicity caused by overeating and high-fat diet intake. This study aimed to present the molecular characterization of GPR84 in domestic cats. The deduced amino acid sequence of the feline GPR84 shows high sequence homology (83-89 %) with the orthologues from other mammalians by cDNA cloning of feline GPR84. Remarkably high mRNA expression was observed in the bone marrow by Q-PCR analysis. The inhibition of intracellular cAMP concentration was observed in cells transfected with feline GPR84 and treated with medium-chain fatty acids. Immunostaining of GPR84 and free fatty acid receptor 2 (FFAR2)/GPR43 in the bone marrow, where high mRNA expression was observed, showed reactions in macrophages and myeloid cells. To clarify whether the receptor formed homo/hetero-merization, GPR84 and FFARs were analyzed using Nano-Luc binary technology and NanoLuc bioluminescence resonance energy transfer technologies, which revealed that GPR84 formed more heteromers with FFAR2 than homomers with each other. In addition, when GPR84 and FFAR2/GPR43 were cotransfected in the cell, their localization on the cell membrane was reduced compared with that when single receptors were transfected. These results indicated that GPR84 is a functional receptor protein that is expressed in cat tissues and may have a protein-protein interaction with FFAR2/GPR43 on the cell membrane.
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Affiliation(s)
- Ichiro Yamamoto
- Department of Veterinary Biochemistry, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Musashino, Tokyo 180-8602, Japan.
| | - Masaki Michishita
- Department of Veterinary Pathology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Musashino, Tokyo 180-8602, Japan
| | - Koki Fujita
- Department of Veterinary Biochemistry, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Musashino, Tokyo 180-8602, Japan
| | - Tamami Sakai
- Department of Veterinary Biochemistry, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Musashino, Tokyo 180-8602, Japan
| | - Noriyasu Sasaki
- Department of Veterinary Biochemistry, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Musashino, Tokyo 180-8602, Japan
| | - Koh Kawasumi
- Department of Veterinary Biochemistry, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Musashino, Tokyo 180-8602, Japan
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Katayama K, Ito J, Murakami R, Yamashita A, Sasajima H, Narahashi S, Chiba J, Yamamoto I, Fujii W, Tochigi Y, Suzuki H. Mutation of the Thap4 gene causes dwarfism and testicular anomalies in rats and mice. Mamm Genome 2024:10.1007/s00335-024-10041-8. [PMID: 38658415 DOI: 10.1007/s00335-024-10041-8] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 04/15/2024] [Indexed: 04/26/2024]
Abstract
The petit (pet) locus is associated with dwarfism, testicular anomalies, severe thymic hypoplasia, and high postnatal lethality, which are inherited in autosomal recessive mode of inheritance in rats with a Wistar strain genetic background. Linkage analysis localized the pet locus between 98.7 Mb and 101.2 Mb on rat chromosome 9. Nucleotide sequence analysis identified 2 bp deletion in exon 2 of the Thap4 gene as the causative mutation for pet. This deletion causes a frameshift and premature termination codon, resulting in a truncated THAP4 protein lacking approximately two-thirds of the C-terminal side. Thap4 is expressed in various organs, including the testis and thymus in rats. To elucidate the biological function of THAP4 in other species, we generated Thap4 knockout mice lacking exon 2 of the Thap4 gene through genome editing. Thap4 knockout mice also exhibited dwarfism and small testis but did not show high postnatal lethality. Thymus weights of adult Thap4 knockout male mice were significantly higher compared to wild-type male mice. Although Thap4 knockout male mice were fertile, their testis contained seminiferous tubules with spermatogenesis and degenerative seminiferous tubules lacking germ cells. Additionally, we observed vacuoles in seminiferous tubules, and clusters of cells in the lumen in seminiferous tubules in Thap4 knockout male mice. These results demonstrate that spontaneous mutation of Thap4 gene in rats and knockout of Thap4 gene in mice both cause dwarfism and testicular anomalies. Thap4 gene in rats and mice is essential for normal testicular development, maintaining spermatogenesis throughout the entire region of seminiferous tubules.
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Affiliation(s)
- Kentaro Katayama
- Laboratory of Veterinary Physiology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
| | - Junya Ito
- Laboratory of Veterinary Physiology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
| | - Rei Murakami
- Laboratory of Veterinary Physiology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
| | - Ayako Yamashita
- Laboratory of Veterinary Physiology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
| | - Hotaka Sasajima
- Laboratory of Veterinary Physiology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
| | - Satomi Narahashi
- Laboratory of Veterinary Physiology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
| | - Junko Chiba
- Laboratory of Veterinary Physiology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
| | - Ichiro Yamamoto
- Laboratory of Veterinary Biochemistry, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
| | - Wataru Fujii
- Laboratory of Biomedical Science, Department of Veterinary Medical Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Yuki Tochigi
- Laboratory of Veterinary Physiology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
| | - Hiroetsu Suzuki
- Laboratory of Veterinary Physiology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan.
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Kaku M, Kagawa H, Yamamoto T, Kojima S, Kamiya T, Shimoe S, Mine Y, Murayama T, Yamamoto I, Tanimoto K. The Physiological Function of Deglutition and Swallowing in Patients With Maxillary Protrusion After Mandibular Advancement. J Craniofac Surg 2023; 34:1966-1970. [PMID: 37352383 DOI: 10.1097/scs.0000000000009479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 04/25/2023] [Indexed: 06/25/2023] Open
Abstract
The objective of this study was to determine the tongue-palatal contact changes in patients with skeletal maxillary protrusion after sagittal split ramus osteotomy (SSRO) during swallowing. In this study, 15 patients with maxillary protrusion and 10 normal subjects participated. Before and 3 months after surgery, tongue-palatal contact patterns during swallowing of patients with maxillary protrusion as well as controls were evaluated by electropalatography. The electrode contact number in the alveolar, palatal, and velar parts was examined. The swallowing duration of each phase was also evaluated. In the lateral area of the velar part, incomplete electrode contact was shown at 0.3 seconds in patients with maxillary protrusion. The electrode contact number in the velar part at 0.3 seconds before tongue-palatal complete contact was significantly less in the preoperative patients compared with the controls ( P < 0.05). A small increase in the electrode contact number of the velar part was shown in the postoperative patients at 0.3 and 0.2 seconds before tongue-palatal complete contact ( P < 0.05). The pharyngeal phase duration was significantly larger in the patients with maxillary protrusion before SSRO compared with the controls ( P < 0.05). After SSRO, the pharyngeal phase duration was significantly shortened. It was shown that the tongue-palatal contact pattern during swallowing in patients with maxillary protrusion improved after orthognathic surgery, and the pharyngeal phase duration was also shortened. It is suggested that the changes in the mesiodistal mandibular position by orthognathic surgery can improve tongue posture and movement during swallowing.
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Affiliation(s)
- Masato Kaku
- Division of Oral Health Sciences, Department of Anatomy and Functional Restorations, Hiroshima University Graduate School of Biomedical and Health Sciences
| | - Haruka Kagawa
- Department of Orthodontics, Applied Life Sciences, Hiroshima University Institute of Biomedical and Health Sciences
| | - Taeko Yamamoto
- Department of Orthodontics, Applied Life Sciences, Hiroshima University Institute of Biomedical and Health Sciences
| | | | | | - Saiji Shimoe
- Division of Oral Health Sciences, Department of Anatomy and Functional Restorations, Hiroshima University Graduate School of Biomedical and Health Sciences
| | - Yuichi Mine
- Department of Medical System Engineering, Division of Oral Health Sciences, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima
| | - Takeshi Murayama
- Department of Medical System Engineering, Division of Oral Health Sciences, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima
| | - Ichiro Yamamoto
- EPG Research Center, Yamamoto Dental Clinic, Nishinomiya, Japan
| | - Kotaro Tanimoto
- Department of Orthodontics, Applied Life Sciences, Hiroshima University Institute of Biomedical and Health Sciences
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Nagama T, Yamamoto I, Kuniyoshi K, Fukuda S, Kakudo N, Kusumoto K. Long-Term Follow-up With Multispecialty Management of a Giant Lymphangioma of an Infant Tongue Contributed to Reduced Complications of the Disease: A Case Report of a 21-Year Follow-up. Eplasty 2022; 22:e56. [PMID: 36545641 PMCID: PMC9748821] [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] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Background. Lymphangiomas are benign tumors of abnormal lymphatic tissue. Approximately 6% of all lymphangiomas occur on the tongue. A lymphangioma of the tongue may present as a localized or a diffused growth, which may enlarge to cause macroglossia, impaired speech, and difficulty in mastication. This article reports a 21-year follow-up of a male infant who presented with a giant tongue lymphangioma. This long-term follow-up with multidisciplinary management including partial glossectomy, sclerotherapy, and orthodontic treatment to diminish complications of the disease in adulthood.
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Affiliation(s)
- Tae Nagama
- Kansai Medical University, Department of Plastic and Reconstructive Surgery, Osaka, Japan,Correspondence: Tae Nagama, MD;
| | | | - Kyoko Kuniyoshi
- Kansai Medical University, Department of Plastic and Reconstructive Surgery, Osaka, Japan
| | | | - Natsuko Kakudo
- Kansai Medical University, Department of Plastic and Reconstructive Surgery, Osaka, Japan
| | - Kenji Kusumoto
- Kansai Medical University, Department of Plastic and Reconstructive Surgery, Osaka, Japan
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Lee A, Fujiwara Y, Liker M, Yamamoto I, Takei Y, Gibbon F. Electropalatography (EPG) activities in Japan and the impact of the COVID-19 pandemic on EPG research and therapy: A report of presentations at the 7th EPG Symposium. Int J Lang Commun Disord 2022; 57:906-917. [PMID: 35307940 PMCID: PMC9111328 DOI: 10.1111/1460-6984.12720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 02/28/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND At the 7th Electropalatography Symposium in Japan, held online on the 24 January 2021, a few speakers were invited to talk about how the COVID-19 pandemic had impacted their research and/or speech therapy that involved the use of electropalatography (EPG) as well as the procedures adopted in order to continue their work in a safe manner. The information on protective measures when using instrumental techniques in speech research and therapy may be useful for colleagues in research and the clinic. AIMS The primary aims are: (1) to find out whether there are any published recommendations regarding protective measures for using EPG in research and clinic settings; (2) to discuss the impact of the pandemic and the corresponding restrictions and general protective measures directed (or advised) by local government and professional bodies at each stage of EPG work; and (3) to share experiences in using modified procedures for face-to-face EPG therapy sessions and combined EPG teletherapy. In addition, a brief overview of EPG and a summary of EPG research and clinical activities in Japan presented by one of the symposium organizers at the symposium are included. METHODS & PROCEDURES A review of the literature regarding protective measures recommended for using EPG for speech assessment and treatment or research, supplemented by a discussion of our own experiences. MAIN CONTRIBUTION The literature review showed that there are no guidelines regarding protective measures for using EPG, but there is some advice regarding speech recording using microphones. Most published articles related to speech and language therapy (SLT) service during COVID-19 are about telepractice or general clinical guidelines for face-to-face speech therapy sessions. The protective measures for using EPG developed based on the general guidelines recommended by local government and professional bodies (e.g., using visors, transparent acrylic board) were described. Using EPG in telepractice was discussed as well. CONCLUSIONS It has been challenging to continue EPG research and therapy during the pandemic. In order to deal with this crisis, available knowledge regarding infection control and recommendations from local government and professional bodies were applied to design methods and procedures that allowed EPG research and therapy to continue. WHAT THIS PAPER ADDS What is already known on the subject There are general protective measures recommended by local government and professional bodies regarding speech therapy sessions (e.g., using personal protective equipment (PPE), social distancing), but little is known about the measures for using instrumental techniques in speech research and therapy, particularly EPG. The equipment of each instrumental technique is different, so measures that are appropriate for one may not be suitable for others. Hence, specific recommendations are needed for EPG. What this paper adds to existing knowledge This paper provides pointers to information about recommendations regarding protective measures for speech research and therapy, supplemented with suggestions specific to EPG provided by experienced users based on actual experience. What are the potential or actual clinical implications of this work? In evaluating the impact of the COVID-19 pandemic on EPG research and therapy, an analytical approach was taken to break down the steps involved in carrying out those activities, and the challenges we faced and the possible alternatives for completing the tasks were discussed. A similar approach can be applied to evaluate other aspects of speech therapy service.
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Affiliation(s)
- Alice Lee
- Department of Speech and Hearing SciencesUniversity College CorkCorkIreland
| | - Yuri Fujiwara
- Department of Speech TherapyOsaka Health Science UniversityOsakaJapan
| | - Marko Liker
- Department of PhoneticsUniversity of ZagrebZagrebCroatia
| | | | - Yoshiko Takei
- Department of RehabilitationShowa UniversityShinagawa‐kuJapan
| | - Fiona Gibbon
- Department of Speech and Hearing SciencesUniversity College CorkCorkIreland
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Lee A, Liker M, Fujiwara Y, Yamamoto I, Takei Y, Gibbon F. EPG research and therapy: further developments. Clin Linguist Phon 2022:1-21. [PMID: 35652593 DOI: 10.1080/02699206.2022.2080588] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 05/13/2022] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
Electropalatography (EPG) has been used in the past 50 years for studying the patterns of contact between the tongue and the palate during speech production in typical speakers and those with speech disorders due to different causes. At the 7th EPG Symposium in Japan that was held online on 24 January 2021 (see: https://epg-research.sakura.ne.jp/), a panel of invited experts discussed their views regarding further developments and application of the technique. This paper provides a summary of this discussion. EPG offers information on articulation which cannot be replaced by other instrumental measures of speech. Identified areas for further hardware development are thinner EPG plates, better dental and palatal coverage, wireless connectivity, and sensors that provide additional articulatory information (e.g. tongue pressure, tongue-palate distance). EPG can serve as a resource for teaching speech disorders and phonetics. Furthermore, EPG therapy can be combined with telepractice in the speech therapy of clients with speech disorders.
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Affiliation(s)
- Alice Lee
- Department of Speech and Hearing Sciences, University College Cork, Cork, Ireland
| | - Marko Liker
- Department of Phonetics, University of Zagreb, Zagreb, Croatia
| | - Yuri Fujiwara
- Department of Speech Therapy, Osaka Health Science University, Osaka, Japan
| | - Ichiro Yamamoto
- EPG Research Centre, Yamamoto Dental Clinic, Nishinomiya, Japan
| | - Yoshiko Takei
- Department of Rehabilitation, Showa University, Tokyo, Japan
| | - Fiona Gibbon
- Department of Speech and Hearing Sciences, University College Cork, Cork, Ireland
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Mizorogi T, Kobayashi M, Ohara K, Okada Y, Yamamoto I, Arai T, Kawasumi K. Effects of Age on Inflammatory Profiles and Nutrition/Energy Metabolism in Domestic Cats. Vet Med (Auckl) 2020; 11:131-137. [PMID: 33262938 PMCID: PMC7695597 DOI: 10.2147/vmrr.s277208] [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] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 10/27/2020] [Indexed: 11/23/2022]
Abstract
BACKGROUND Animals tend to increase in body weight and body condition score (BCS) with aging. Serum diagnostic markers related to energy metabolism may show changes even in healthy cats with aging. MATERIALS AND METHODS Seventy domestic cats were recruited for this study. Based upon the modified AAFP-AAHA Feline Life Stage Guidelines, animals were divided into six groups: Junior (7 months-2 years), Prime (3 -6 years), Mature (7-10 years), Senior (11-14 years), Geriatric-obese (15 years ≤) and Geriatric-thin (15 years ≤). Their body condition scores (BCS) ranged from 3/9 to 9/9. Changes in metabolites, inflammatory markers, hormone concentrations and enzyme activities related to energy metabolism were investigated in serum of 70 domestic cats of various ages. RESULTS Serum glucose (GLU) concentrations in the Mature, Senior, and Geriatric-obese groups were significantly higher than those in the Junior group. Serum amyloid A (SAA) concentrations in the Geriatric-thin group were significantly increased compared with the Junior group. SAA concentrations in the Geriatric-obese group tended to increase although there were no statistically significant differences. In the Mature, Senior, Geriatric-obese and Geriatric-thin groups, malate dehydrogenase/lactate dehydrogenase (M/L) ratio, an energy metabolic indicator, tended to decrease compared with the Junior group. In the Senior group, triglyceride (TG) concentrations were significantly increased compared with the Junior group. In the Geriatric-obese and Geriatric-thin groups, blood urea nitrogen (BUN) concentrations were significantly increased compared with the Junior group. In the Geriatric-obese group, albumin (ALB) concentrations were decreased compared with the Junior group. CONCLUSION Aged domestic cats tend to increase in body weight and BCS. In addition, serum GLU, TG, SAA, and BUN concentrations increased and serum ALB concentrations and M/L ratio decreased. These diagnostic markers may be useful to detect small changes related to energy metabolism with aging that may cause obesity with light inflammation in healthy cats.
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Affiliation(s)
- Takayuki Mizorogi
- Laboratory of Veterinary Biochemistry, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
- Seijyo Kobayashi Veterinary Clinic, Tokyo, Japan
| | | | - Kenji Ohara
- Laboratory of Veterinary Biochemistry, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
- National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry & Fisheries, Government of Japan, Tokyo, Japan
| | - Yuki Okada
- Laboratory of Veterinary Biochemistry, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Ichiro Yamamoto
- Laboratory of Veterinary Biochemistry, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Toshiro Arai
- Laboratory of Veterinary Biochemistry, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Koh Kawasumi
- Laboratory of Veterinary Biochemistry, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
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Yamamoto I, Kawasumi K, Ohkusu‐Tsukada K, Arai T. Molecular characterization of free fatty acid receptors FFAR2 and FFAR3 in the domestic cat. Vet Med Sci 2020; 7:77-85. [PMID: 32929853 PMCID: PMC7840215 DOI: 10.1002/vms3.356] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 08/04/2020] [Accepted: 08/29/2020] [Indexed: 12/31/2022] Open
Abstract
G protein‐coupled receptors 41 and 43 were identified and characterized as free fatty acid receptors (FFAR) 3 and 2, respectively. FFAR2 and FFAR3 mediate short‐chain fatty acids (SCFAs) as signalling molecules. The present study aimed to give molecular characterization of FFAR2 and FFAR3 in the domestic cat. High homology with that in other mammals was revealed by cDNA cloning of cat FFAR2 FFAR3. We analyzed the tissue distribution of cat FFAR2 and FFAR3 mRNA using quantitative polymerase chain reaction. The inhibition of intracellular cAMP concentrations was observed in cells transfected with cat FFAR2 or FFAR3 and treated with SCFAs. The activation of nuclear factor of activated T cells‐luciferase reporter was only observed in cat FFAR2 transfected cells but not in FFAR3. Split luciferase assay (NanoLuc Binary Technology; NanoBiT) for FFAR2 or FFAR3 and Arrestin‐3/β‐arrestin‐2 revealed acetate‐/propionate‐induced recruitment to cat FFAR2 or FFAR3 in CHO‐K1 cells. Our results indicate that FFAR2 and FFAR3 are functional receptor proteins that are expressed in cat tissues and show differential distribution patterns.
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Affiliation(s)
- Ichiro Yamamoto
- Department of Basic Veterinary MedicineSchool of Veterinary MedicineFaculty of Veterinary ScienceNippon Veterinary and Life Science UniversityMusashino‐shiTokyoJapan
| | - Koh Kawasumi
- Department of Basic Veterinary MedicineSchool of Veterinary MedicineFaculty of Veterinary ScienceNippon Veterinary and Life Science UniversityMusashino‐shiTokyoJapan
| | - Kozo Ohkusu‐Tsukada
- Department of Veterinary PathologySchool of Veterinary MedicineFaculty of Veterinary ScienceNippon Veterinary and Life‐Science UniversityMusashino‐shiTokyoJapan
| | - Toshiro Arai
- Department of Basic Veterinary MedicineSchool of Veterinary MedicineFaculty of Veterinary ScienceNippon Veterinary and Life Science UniversityMusashino‐shiTokyoJapan
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Okubo K, Ito T, Okamoto K, Yamamoto I, Mizutani H, Kawata Y, Shiota Y, Ito M, Nakamura S, Tai M, Yamamoto T, Takashiba S. Evaluation of the simulator with automatic irrigation control system designed for countermeasures of internal contamination in dental unit water lines. Heliyon 2020; 6:e04132. [PMID: 32566782 PMCID: PMC7298401 DOI: 10.1016/j.heliyon.2020.e04132] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/04/2019] [Accepted: 06/01/2020] [Indexed: 11/24/2022] Open
Abstract
The prevention of nosocomial infections is an imperative task. The dental chair unit (DCU) is an indispensable device used in dental treatment. However, it is known that the dental unit water line (DUWL) can become contaminated with biofilm, consisting mainly of heterotrophic bacteria (HB). Recently, the International Organization for Standardization specified the methods for testing DUWL contamination management. On these grounds, a simulator reproducing DUWL was prepared to standardize the examination method of the DUWL contamination. Objectives To evaluate the reproducibility of the DUWL simulator, monitor the DUWL contamination states, and test the efficacy of a commercial decontaminant for DUWL. Methods The DUWL simulator was assembled by a DCU manufacturing company. The simulator's DUWL was filled with tap water (TW), and left for approximately one year. Neutral electrolyzed water (NEW) was used as a decontaminant for DUWL. Both TW and NEW were passed through DUWL in a timely manner simulating daily dental treatment. Water was sampled from the air turbine hand piece weekly for 4 weeks and used for HB culture. Contamination status was evaluated by measuring bacterial adenosine triphosphate release and by culturing on Reasoner's 2A medium. Results The DUWL released contaminated water had a bacterial count of over 6 × 104 cfu/mL. After passing NEW through DUWL for 1 week, the count drastically decreased to its basal level and remained steady for 4 weeks. However, TW showed no effect on DUWL decontamination throughout the examination periods. Conclusions The DUWL simulator could be useful to examine the efficacy of the decontaminant for DUWL and development of new methods in DUWL contamination management.
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Affiliation(s)
- Keisuke Okubo
- Department of Pathophysiology - Periodontal Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.,Division of Dentistry, Tottori Municipal Hospital, 1-1 Matoba Tottori, Tottori 680-0501, Japan
| | - Takashi Ito
- Center for Innovative Clinical Medicine, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Kentaro Okamoto
- Department of Pathophysiology - Periodontal Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Ichiro Yamamoto
- Dental Department Marketing Division, TAKARA BELMONT Corporation, 2-1-1 Higashishinsaibashi, Chuo-ku, Osaka 542-0083, Japan
| | - Hajime Mizutani
- Research and Development Department, TAKARA BELMONT Corporation, 2-1-1 Higashishinsaibashi, Chuo-ku, Osaka 542-0083, Japan
| | - Yusuke Kawata
- Department of Periodontics and Endodontics, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Yasuyoshi Shiota
- Department of Pathophysiology - Periodontal Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Masahiro Ito
- Department of Periodontics and Endodontics, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Shin Nakamura
- Department of Periodontics and Endodontics, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Masako Tai
- Department of Periodontics and Endodontics, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Tadashi Yamamoto
- Department of Pathophysiology - Periodontal Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Shogo Takashiba
- Department of Pathophysiology - Periodontal Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
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Yamanishi T, Kakiuchi H, Tauchi H, Yamamoto T, Yamamoto I. Discussions on Tritiated Water Treatment for Fukushima Daiichi Nuclear Power Station. Fusion Science and Technology 2020. [DOI: 10.1080/15361055.2020.1716454] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Toshihiko Yamanishi
- Japan Agency for Quantum and Radiological Science and Technology, Department of Blanket Systems Research, Shirakata Shirane 2-4, Tokai, Ibaraki 319-1195, Japan
| | - Hideki Kakiuchi
- Institute for Environmental Science, Department of Radioecology, 1-7, Ienomae, Obuchi, Rokkasho, Aomori 039-3212, Japan
| | - Hiroshi Tauchi
- Ibaraki University, Graduate School of Science and Engineering, Bunkyo 2-1-1 Mito, Ibaraki, Japan
| | - Tokuhiro Yamamoto
- Japan Atomic Energy Agency, 765-1, Funaishikawa, Tokai, Ibaraki 319-1184, Japan
| | - Ichiro Yamamoto
- Nagoya University of Arts and Sciences, 57 Takenoyama, Iwasaki, Aichi 470-0196, Japan
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11
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Sato M, Yano M, Sato S, Aoyagi Y, Aso S, Matsumoto H, Yamamoto I, Nasu K. Uterine tumor resembling ovarian sex-cord tumor (UTROSCT) with sarcomatous features without recurrence after extended radical surgery: A case report. Medicine (Baltimore) 2020; 99:e19166. [PMID: 32176042 PMCID: PMC7220453 DOI: 10.1097/md.0000000000019166] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
RATIONALE The malignant potential and the appropriate treatment of uterine tumor resembling ovarian sex-cord tumor (UTROSCT) is controversial. Although these tumors generally have benign outcomes, several reports have described recurrences, metastases, and deaths associated with this disease. PATIENT CONCERNS A 57-year-old Japanese woman (gravida 2, para 2) was referred to our hospital for the evaluation and treatment of uterine fibroids. Magnetic resonance imaging revealed a right ovarian mass and multiple fibroids in the uterine myometrium. DIAGNOSES The patient was diagnosed with UTROSCT with sarcomatous features. INTERVENTIONS She initially underwent a total abdominal hysterectomy and bilateral salpingo-oophorectomy, followed by second-stage surgery comprising pelvic and para-aortic lymphadenectomy and subtotal omentectomy. OUTCOMES No postoperative recurrence was observed in the patient in 36 months. LESSONS In this case, extended radical surgery prevented the development of recurrent disease in a patient with UTROSCT with sarcomatous features. These clinicopathological findings suggest that UTROSCT is associated with several risk factors, including older age, presence of necrosis, lymphovascular invasion, significant nuclear atypia, and significant mitotic activity. This lesion type should be considered malignant and treated with curative intent.
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Affiliation(s)
- Miho Sato
- Department of Obstetrics and Gynecology, Nakatsu Municipal Hospital
- Department of Obstetrics and Gynecology, Oita University Faculty of Medicine, Oita
| | - Mitsutake Yano
- Department of Obstetrics and Gynecology, Nakatsu Municipal Hospital
- Department of Obstetrics and Gynecology, Oita University Faculty of Medicine, Oita
- Department of Pathology, Saitama Medical University International Medical Center, Saitama
| | - Shimpei Sato
- Department of Obstetrics and Gynecology, Oita University Faculty of Medicine, Oita
| | - Yoko Aoyagi
- Department of Obstetrics and Gynecology, Nakatsu Municipal Hospital
- Department of Obstetrics and Gynecology, Oita University Faculty of Medicine, Oita
| | - Saki Aso
- Department of Obstetrics and Gynecology, Oita University Faculty of Medicine, Oita
| | - Harunobu Matsumoto
- Department of Obstetrics and Gynecology, Nakatsu Municipal Hospital
- Department of Obstetrics and Gynecology, Oita University Faculty of Medicine, Oita
| | | | - Kaei Nasu
- Department of Obstetrics and Gynecology, Oita University Faculty of Medicine, Oita
- Division of Obstetrics and Gynecology, Support System for Community Medicine, Oita University Faculty of Medicine, Oita, Japan
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12
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Yamamoto I. Tongue-palate contact patterns for Japanese speakers with and without cleft lip and palate. Int J Speech Lang Pathol 2020; 22:70-77. [PMID: 31014123 DOI: 10.1080/17549507.2019.1593505] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 12/15/2018] [Accepted: 01/16/2019] [Indexed: 06/09/2023]
Abstract
Purpose: Visual feedback therapy, using electropalatography (EPG), has been used to remedy residual articulation errors associated with cleft palate. The tongue-palate contact patterns of typical speakers without cleft palate are usually used as a model. However, it is questionable whether these model patterns are adequate for clients with repaired cleft palate, as their dento-palatal morphology is different from non-cleft speakers. The objective of this study was to investigate the differences in tongue-palate contact patterns between typical speakers with and without cleft palate.Method: EPG data were recorded for alveolar consonants in 15 participants with repaired unilateral cleft lip and palate (UCLP) whose speech was perceptually assessed as typical Japanese. The cumulative templates for each consonant were generated from the maximum contact frame; quantitative analyses (centre of gravity [CoG], variability index) were performed. Fifteen typical Japanese speakers without cleft served as a control group.Result: EPG patterns for each consonant were generally similar between groups. The CoG value of the UCLP group was significantly lower only for /s/. The average variability index was higher for every consonant but the comparisons did not reach significance.Conclusion: The typical tongue-palate contact patterns can be used as a model of visual feedback therapy.
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Affiliation(s)
- Ichiro Yamamoto
- Yamamoto Dental Clinic, EPG Research Centre, Nishinomiya, Japan
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13
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SASAKI T, Tsuboi N, Okabayashi Y, Haruhara K, Kanazaki G, Koike K, Kobayashi A, Yamamoto I, Yokoo T. SUN-243 ESTIMATION OF THE TOTAL NEPHRON NUMBER IN HUMANS COMBINING UNENHANCED COMPUTED TOMOGRAPHY AND A BIOPSY-BASED METHOD. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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14
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Yamazaki S, Shima M, Yoda Y, Kurosaka F, Isokawa T, Shimizu S, Ogawa T, Kamiyoshi N, Terada K, Nishikawa J, Hanaoka K, Yamada T, Matsuura S, Hongo A, Yamamoto I. Association between chemical components of PM 2.5 and children's primary care night-time visits due to asthma attacks: A case-crossover study. Allergol Int 2019; 68:329-334. [PMID: 30744923 DOI: 10.1016/j.alit.2019.01.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 12/24/2018] [Accepted: 01/08/2019] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Few papers have examined the association between the chemical components of PM2.5 and health effects. The existence of an association is now under discussion. METHODS This case-crossover study aimed to examine the association between the chemical components of PM2.5 and night-time primary care visits (PCVs) due to asthma attacks. The subjects were 1251 children aged 0-14 years who received medical care for asthma at a municipal emergency clinic. We measured daily average concentrations of hydrogen ion, sulfate ion, nitrate ion and water-soluble organic compounds (WSOCs), which are components of PM2.5. We estimated the odds ratios (ORs) of PCVs per unit increment (inter quartile ranges) in each chemical component of PM2.5 for the subgroups of warmer months and colder months separately. RESULTS No association was seen between PCVs and PM2.5 mass concentrations the day before the PCVs in either warmer or colder months. In the warmer months, an association was seen with the concentrations of WSOCs and hydrogen ion the day before the PCVs (OR = 1.33; 95% CI: 1.00-1.76, OR = 1.18; 95% CI: 1.02-1.36, respectively). Furthermore, a negative association was seen between sulfate ion and PCVs (OR = 0.85; 95%CI: 0.74-0.98). No associations were observed in the colder months. CONCLUSIONS We observed a positive association between PCVs and certain concentrations of WSOCs and hydrogen ions in warmer months. In contrast, sulfate ion showed a negative association.
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Affiliation(s)
- Shin Yamazaki
- Environmental Epidemiology Section, National Institute for Environmental Studies, Tsukuba, Japan
| | - Masayuki Shima
- Department of Public Health, Hyogo College of Medicine, Nishinomiya, Japan.
| | - Yoshiko Yoda
- Department of Public Health, Hyogo College of Medicine, Nishinomiya, Japan
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Kawasumi K, Murai T, Mizorogi T, Okada Y, Yamamoto I, Suruga K, Kadokura K, Arai T. Changes in Plasma Metabolites Concentrations in Obese Dogs Supplemented With Anti-oxidant Compound. Front Nutr 2018; 5:74. [PMID: 30246011 PMCID: PMC6137203 DOI: 10.3389/fnut.2018.00074] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 08/03/2018] [Indexed: 01/19/2023] Open
Abstract
The aim of this study is to discuss the effect of anti-oxidant supplement (Rv-PEM01-99, Kibun Foods, Inc., Tokyo, Japan) on changes in energy metabolism in obese dogs. 200 mg/kg/day of Rv-PEM01-99 (equivalent to 5 mg kg/day of quercetin derivative) were applied for 6 weeks to the Beagle dogs fed high fat diet (HFD) or control diet (CD). In the present study, body weight (BW) decreasing effect of Rv-PEM 01-99 in obese dogs was not clear. However, plasma alkaline phosphatase (ALP) activities at the end of experiment were significantly decreased compared to those at the start of experiment in obese dogs supplemented with Rv-PEM 01-99 (paired-t test, p < 0.05). In control dogs supplemented with Rv-PEM 01-99, Plasma malondialdehyde (MDA), and triglycerides (TG) levels and lactate dehydrogenase (LDH) activities were significantly decreased compared to those at the start of experiment (paired-t test, p < 0.05). From these findings, Rv-PEM 01-99 seems to be not harmful for dogs. Anti-lipid peroxide effect and liver function improvement are expected in the dogs supplemented with Rv-PEM 01-99.
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Affiliation(s)
- Koh Kawasumi
- Laboratory of Veterinary Biochemistry, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Musashino, Japan
| | - Tae Murai
- Laboratory of Veterinary Biochemistry, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Musashino, Japan
| | - Takayuki Mizorogi
- Laboratory of Veterinary Biochemistry, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Musashino, Japan
| | - Yuki Okada
- Laboratory of Veterinary Biochemistry, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Musashino, Japan
| | - Ichiro Yamamoto
- Laboratory of Veterinary Biochemistry, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Musashino, Japan
| | - Kohei Suruga
- Food Function R&D Division, International Operation Department, Kibun Foods Inc., Inagi, Japan
| | - Kazunari Kadokura
- Food Function R&D Division, International Operation Department, Kibun Foods Inc., Inagi, Japan
| | - Toshiro Arai
- Laboratory of Veterinary Biochemistry, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Musashino, Japan
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16
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Habara M, Mori N, Okada Y, Kawasumi K, Nakao N, Tanaka Y, Arai T, Yamamoto I. Molecular characterization of feline melanocortin 4 receptor and melanocortin 2 receptor accessory protein 2. Gen Comp Endocrinol 2018; 261:31-39. [PMID: 29360464 DOI: 10.1016/j.ygcen.2018.01.020] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 01/17/2018] [Accepted: 01/17/2018] [Indexed: 01/06/2023]
Abstract
Melanocortin 4 receptor (MC4R), which is a member of the G protein-coupled receptor (GPCR) family, mediates regulation of energy homeostasis upon the binding of α-melanocyte-stimulating hormone (α-MSH) in the central nervous system (CNS). Melanocortin 2 receptor accessory protein 2 (MRAP2) modulates the function of MC4R. We performed cDNA cloning of cat MC4R and MRAP2 and characterized their amino acid sequences, mRNA expression patterns in cat tissues, protein-protein interactions, and functions. We found high sequence homology (>88%) with other mammalian MC4R and MRAP2 encoding 332 and 206 amino acid residues, respectively. Reverse transcription-polymerase chain reaction analysis revealed that cat MC4R and MRAP2 mRNA were expressed highly in the CNS. In CHO-K1 cells transfected with cat MC4R, stimulation with α-MSH increased intracellular cyclic adenosine monophosphate (cAMP) concentration in a dose-dependent manner. Furthermore, the presence of MRAP2 enhanced the cat MC4R-mediated cAMP production. These results suggested that cat MC4R acts as a neuronal mediator in the CNS and that its function is modulated by MRAP2. In addition, our NanoBiT study showed the dynamics of their interactions in living cells; stimulation with α-MSH slightly affected the interaction between MC4R and MRAP2, and did not affect MC4R homodimerization, suggesting that they interact in the basal state and that structural change of MC4R by activation may affect the interaction between MC4R and MRAP2.
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Affiliation(s)
- Makoto Habara
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 1808602, Japan
| | - Nobuko Mori
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 1808602, Japan; Laboratory of Molecular Biomedicine for Pathogenesis, Center for Disease Biology and Integrative Medicine, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 1130033, Japan
| | - Yuki Okada
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 1808602, Japan
| | - Koh Kawasumi
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 1808602, Japan
| | - Nobuhiro Nakao
- Laboratory of Animal Physiology, Department of Animal Science, Faculty of Applied Life Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 1808602, Japan
| | - Yoshikazu Tanaka
- Department of Veterinary Hygiene, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 1808602, Japan
| | - Toshiro Arai
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 1808602, Japan
| | - Ichiro Yamamoto
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 1808602, Japan.
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17
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Satoh D, Toda N, Yamamoto I. Effects of intraoperative nutrients administration on energy expenditure during general anesthesia. Nutrition 2017; 45:37-40. [PMID: 29129235 DOI: 10.1016/j.nut.2017.06.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Revised: 05/13/2017] [Accepted: 06/17/2017] [Indexed: 11/25/2022]
Abstract
OBJECTIVES Recent reports have shown that intraoperative infusions of glucose and amino acids exert anticatabolic effects. The appropriate dosages of these amino acids and glucose during general anesthesia remain unknown. METHODS Patients who underwent esophagectomy for thoracic esophageal cancer were infused with acetated Ringer's solution that contained glucose and amino acids (B1 group [10 patients]: glucose, 3 g/h; amino acids, 1.2 g/h; B2 group [12 patients]: glucose, 4.5 g/h; amino acids, 1.8 g/h) or did not contain glucose and amino acids (C group, 10 patients). The measured energy expenditure was measured by indirect calorimetry. Nitrogen balance was measured during the anesthesia, and the lengths of the hospital stay were recorded. RESULTS Resting energy expenditure (B1: 1230 ± 228; B2: 1317 ± 282; C: 1012 ± 153 kcal/h; B2 vs C, P < 0.05) and nitrogen balance (B1: -1.78 ± 0.78 g; B2: -0.85 ± 0.98 g; C: -2.94 ± 2.4 g; B2 vs C, P < 0.05) differed significantly between the B2 and C groups. The lengths of the hospital stay differed between the B2 and C groups (B1: 29 ± 15 d; B2: 18 ± 6 d; C: 37 ± 27 d; B2 vs C, P = 0.06). CONCLUSIONS The administration of amino acids and glucose increased measured energy expenditure, alleviated nitrogen balance, and may decrease the length of the hospital stay.
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Affiliation(s)
- Daizoh Satoh
- Department of Anesthesiology and Perioperative Medicine, Tohoku University Postgraduate Medical School, Miyagi, Japan.
| | - Noriko Toda
- Department of Anesthesiology and Perioperative Medicine, Tohoku University Postgraduate Medical School, Miyagi, Japan
| | - Ichiro Yamamoto
- Department of Anesthesiology and Perioperative Medicine, Tohoku University Postgraduate Medical School, Miyagi, Japan
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18
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Azuma Y, Tokuda T, Kushimura Y, Yamamoto I, Yoshida H, Mizuta I, Ueyama M, Nagai Y, Nakagawa M, Mizuno T, Yamaguchi M. The search for genes that modulate FUS-mediated phenotypes by Drosophila amyotrophic lateral sclerosis model. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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Kushimura Y, Tokuda T, Azuma Y, Yamamoto I, Yoshida H, Mizuta I, Ueyama M, Nagai Y, Nakagawa M, Mizuno T, Yamaguchi M. Loss of function mutant of ter94, Drosophila VCP, partially enhanced motor neuron degeneration induced by knockdown of TBPH, Drosophila TDP-43. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Yamamoto I, Kobayashi N, Kanagawa A. State of the Art of Separative Analysis of Cryogenic-Wall Thermal Diffusion Column for Hydrogen Isotope Separation. ACTA ACUST UNITED AC 2017. [DOI: 10.13182/fst95-a30500] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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)
- Ichiro Yamamoto
- Department of Nuclear Engineering, Nagoya University Furo-cho, Chikusa-ku, Nagoya, 464-01 JAPAN 81-52-789-3783
| | - Noboru Kobayashi
- Department of Nuclear Engineering, Nagoya University Furo-cho, Chikusa-ku, Nagoya, 464-01 JAPAN 81-52-789-3783
| | - Akira Kanagawa
- Department of Nuclear Engineering, Nagoya University Furo-cho, Chikusa-ku, Nagoya, 464-01 JAPAN 81-52-789-3783
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21
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Kojima S, Kaku M, Yamamoto I, Yasuhara Y, Sumi H, Yamamoto T, Yashima Y, Izumino J, Nakajima K, Nagano Y, Kono M, Yoshimura A, Ueasa M, Tanimoto K. Tongue-palatal contact changes in patients with skeletal mandibular prognathism after sagittal split ramus osteotomy: an electropalatography study. J Oral Rehabil 2017; 44:673-682. [PMID: 28581686 DOI: 10.1111/joor.12530] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/31/2017] [Indexed: 11/28/2022]
Abstract
The purpose of this study was to investigate the changes in tongue-palatal contact patterns using electropalatography (EPG) before and after sagittal split ramus osteotomy (SSRO) in patients with mandibular prognathism. Nine clients who underwent SSRO for mandibular setback and seven control subjects were participated in this study. Tongue-palatal contact patterns for /t/, /s/ and /k/ production were investigated using EPG before surgery and 3 months after surgery. The mean value of whole total of palate contact (WT) in the maximum contact frame was examined before and after SSRO. The correlation quantity between the change of center of gravity (COG) value and the amount of mandibular setback was also evaluated. The mean value of WT for /t/ and /s/ significantly increased after SSRO, and the EPG pattern became normal. However, a remarkable change in WT for /k/ was not observed, and the mean value was significantly larger in the SSRO group before and after surgery than in the control group. A negative correlation between COG variation and the amount of mandibular setback for /t/ and positive correlation for /s/ was observed. This study demonstrated that tongue-palatal contact patterns for /t/ and /s/ articulation improved clearly after SSRO. There was a significant correlation between COG variation and the amount of mandibular setback. However, no significant change was detected through perceptual assessment before and after SSRO. Further investigation is needed to determine whether these results will change over time.
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Affiliation(s)
- S Kojima
- Department of Orthodontics, Applied Life Sciences, Hiroshima University Institute of Biomedical & Health Sciences, Hiroshima, Japan
| | - M Kaku
- Department of Orthodontics, Applied Life Sciences, Hiroshima University Institute of Biomedical & Health Sciences, Hiroshima, Japan
| | - I Yamamoto
- EPG Research Center, Yamamoto Dental Clinic, Hyogo, Japan
| | - Y Yasuhara
- Speech Clinic Division of Specific Dentistry, Hiroshima University Hospital, Hiroshima, Japan
| | - H Sumi
- Department of Orthodontics, Applied Life Sciences, Hiroshima University Institute of Biomedical & Health Sciences, Hiroshima, Japan
| | - T Yamamoto
- Department of Orthodontics, Applied Life Sciences, Hiroshima University Institute of Biomedical & Health Sciences, Hiroshima, Japan
| | - Y Yashima
- Department of Orthodontics, Applied Life Sciences, Hiroshima University Institute of Biomedical & Health Sciences, Hiroshima, Japan
| | - J Izumino
- Department of Orthodontics, Applied Life Sciences, Hiroshima University Institute of Biomedical & Health Sciences, Hiroshima, Japan
| | - K Nakajima
- Department of Orthodontics, Applied Life Sciences, Hiroshima University Institute of Biomedical & Health Sciences, Hiroshima, Japan
| | - Y Nagano
- Department of Rehabilitation Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - M Kono
- Department of Rehabilitation Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - A Yoshimura
- Department of Rehabilitation Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - M Ueasa
- Department of Rehabilitation Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - K Tanimoto
- Department of Orthodontics, Applied Life Sciences, Hiroshima University Institute of Biomedical & Health Sciences, Hiroshima, Japan
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Niikura T, Kobayashi A, Kawabe M, Katsuma A, Yamakawa T, Katsumata H, Mafune A, Nakada Y, Yamamoto I, Tanno Y, Ohkido I, Okumi M, Ishida H, Yamamoto H, Yokoo T, Tanabe K. Clinicopathologic Impact of Early Medullary Ray Injury in Patients Following Kidney Transplantation. Transplant Proc 2017; 49:78-83. [PMID: 28104164 DOI: 10.1016/j.transproceed.2016.10.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND Previously, we explored the histopathologic characteristics of medullary ray injury (MRI) inducing interstitial fibrosis and tubular atrophy (IF/TA) to determine its etiologies, which include calcineurin inhibitor (CNI) toxicity and urologic complications. However, we did not examine the effects of these etiologies on long-term kidney allograft prognosis, because biopsy timing differed among cases. AIM We examined the influence of early MRI on kidney allograft prognosis using protocol biopsies taken within a 3-month time frame. METHODS We defined early MRI as tubular degeneration with interstitial edema or mild fibrosis localized to the medullary ray. We divided 53 protocol biopsies into 2 groups, with and without early MRI. Early MRI+ cases with isometric vacuolization were classified as CNI toxicity; those with Tamm-Horsfall protein in the interstitium and a thyroidlike appearance were classified as urinary tract system abnormalities; remaining cases were classified as "others." We compared changes in serum levels of creatinine (sCr) over 3 years and fibrosis extent at 1 year. RESULTS The sCr levels were significantly higher in the MRI+ group than the MRI- group at 3 years (P = .024). Examining the 3 MRI+ subgroups, only the MRI+ urinary tract system abnormalities group had significantly high sCr levels compared to the MRI- group (P = .019). The MRI+ group showed significant signs of IF/TA at 1 year. CONCLUSIONS Early MRI after kidney transplantation was significantly more likely to develop IF/TA at 1 year and had higher sCr levels at 3 years. In such cases, intervention might preserve graft function over the long term.
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Affiliation(s)
- T Niikura
- Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - A Kobayashi
- Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan.
| | - M Kawabe
- Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - A Katsuma
- Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - T Yamakawa
- Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - H Katsumata
- Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - A Mafune
- Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Y Nakada
- Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - I Yamamoto
- Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Y Tanno
- Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - I Ohkido
- Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - M Okumi
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
| | - H Ishida
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
| | - H Yamamoto
- Department of Internal Medicine, Atsugi City Hospital, Kanagawa, Japan
| | - T Yokoo
- Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - K Tanabe
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
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Tanaka M, Asakura Y, Uda T, Katahira K, Iwahara H, Tsuji N, Yamamoto I. Studies on Hydrogen Extraction Characteristics of Proton-Conducting Ceramics and Their Applications to a Tritium Recovery System and a Tritium Monitor. Fusion Science and Technology 2017. [DOI: 10.13182/fst05-a878] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Tanaka
- Nippon Kucho Service Co. Ltd., Terugaoka, Meitou-ku, Nagoya 465-0042, Japan
| | - Y. Asakura
- National Institute for Fusion Science, Oroshi-cho, Toki, Gifu 509-5292, Japan
| | - T. Uda
- National Institute for Fusion Science, Oroshi-cho, Toki, Gifu 509-5292, Japan
| | - K. Katahira
- TYK Co. Ltd., Ohbata-cho, Tajimi, Gifu 507-8607, Japan
| | - H. Iwahara
- Professor Emeritus, Nagoya University, Shikenya, Moriyama-ku, Nagoya 463-0034, Japan
| | - N. Tsuji
- Nippon Kucho Service Co. Ltd., Terugaoka, Meitou-ku, Nagoya 465-0042, Japan
| | - I. Yamamoto
- Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Yamamoto I, Nishitani T, Sagara A. Overview of Recent Japanese Activities and Plans in Fusion Technology. Fusion Science and Technology 2017. [DOI: 10.13182/fst07-a1513] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Tanaka M, Sugiyama T, Ohshima T, Yamamoto I. Extraction of Hydrogen and Tritium Using High-Temperature Proton Conductor for Tritium Monitoring. Fusion Science and Technology 2017. [DOI: 10.13182/fst11-a12690] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Tanaka
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
| | - T. Sugiyama
- Nagoya University, Fro-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - T. Ohshima
- TYK Co. Ltd., Ohbata, Tajimi, Gifu, 507-8607, Japan
| | - I. Yamamoto
- Nagoya University, Fro-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Sugiyama T, Sugiura K, Enokida Y, Yamamoto I. Separative Analyses of a Chromatographic Column Packed with a Core-Shell Adsorbent for Lithium Isotope Separation. Fusion Science and Technology 2017. [DOI: 10.13182/fst14-t85] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Kei Sugiura
- Nagoya University, Fro-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Youichi Enokida
- Nagoya University, Fro-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Ichiro Yamamoto
- Nagoya University, Fro-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Haro A, Kuramitsu E, Yamamoto I, Fukuyama Y. A case report of successful diagnosis of a pulmonary nodule by a survey of oncogenic mutations; primary lung carcinoma or pulmonary metastasis? Int J Surg Case Rep 2016; 29:176-179. [PMID: 27865146 PMCID: PMC5120262 DOI: 10.1016/j.ijscr.2016.10.076] [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: 09/01/2016] [Accepted: 10/30/2016] [Indexed: 11/24/2022] Open
Abstract
It is very difficult to make a differential diagnosis between primary and metastatic lung carcinoma. The NRAS mutation is detected in several tumors, but the sites and the amino changes of NRAS mutaion is various. Examination of oncogenic mutation is a useful in the diagnosis of pulmonary tumors.
Introduction The number of patients diagnosed with solid carcinomas is increasing, and the most common site of metastasis is the lungs. It is often difficult to make a differential diagnosis between primary lung carcinoma and metastatic lung tumor in using histological examination and by determining their immunohistological status. Presentation A 64-years-old man presented with dyspnea with chest computed tomography (CT) findings of a pulmonary tumor, and afterwards suffered from a sudden bowel hemorrhaged due to colorectal carcinoma. The histological diagnosis of a pulmonary tumor was poorly differentiated adenocarcinoma. Both Thyroid transcription factor-1 (TTF-1) and Cytokeratin20 (CK20) were immunohistologically negative. Of the some oncogenic mutations investigated, a neuroblastoma RAS viral oncogen homolog (NRAS) codon13 G13D mutation was detected in both the colorectal carcinoma and the pulmonary tumor tissue samples. Based on the result, the pulmonary tumor was diagnosed as a metastasis derived from colorectal carcinoma. Discussion Recently, examination of the oncogenes of solid carcinomas has been clinically investigated in primary lung caricnoma and in colorectal carcinomas. The clinical advantage of the oncogenic mutation survey is to identify the site, and the type, of amino acid change in detail. This case is a rare successful case of a survey of the oncogenes for giving a differential diagnosis. Conclusion A survey of the oncogenic genes is very useful to make a differential diagnosis between primary lung carcinoma and metastatic lung tumor.
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Affiliation(s)
- Akira Haro
- Department of Thoracic Surgery, Nakatsu Municipal Hospital, Nakatsu Municipal Hospital, 173 Shimoikenaga, Nakatsu, Oita 871-8511, Japan.
| | - Erina Kuramitsu
- Department of Thoracic Surgery, Nakatsu Municipal Hospital, Nakatsu Municipal Hospital, 173 Shimoikenaga, Nakatsu, Oita 871-8511, Japan
| | - Ichiro Yamamoto
- Department of Diagnostic Pathology, Nakatsu Municipal Hospital, Nakatsu Municipal Hospital, 173 Shimoikenaga, Nakatsu, Oita 871-8511, Japan
| | - Yasuro Fukuyama
- Department of Thoracic Surgery, Nakatsu Municipal Hospital, Nakatsu Municipal Hospital, 173 Shimoikenaga, Nakatsu, Oita 871-8511, Japan
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Yamamoto K, Nakayama Y, Yamamoto I, Matsusue Y, Shimotsuji H, Kirita T. A Ferromagnetic Foreign Body at the Lateral Aspect of the Mandibular Ramus in a Medically Compromised Patient. Open Dent J 2016; 10:390-4. [PMID: 27583049 PMCID: PMC4988091 DOI: 10.2174/1874210616021001390] [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: 10/18/2015] [Revised: 06/06/2016] [Accepted: 06/24/2016] [Indexed: 11/22/2022] Open
Abstract
A case of a ferromagnetic foreign body in a medically compromised patient was reported. The patient was a 45-year-old male who consulted our department complaining of a foreign body accidentally impacted in the right cheek. X-ray examination revealed a foreign body at the lateral aspect of the right mandibular ramus. The removal of the foreign body was scheduled, but the patient did not return for the procedure. After 8 years he revisited our department for the removal of the foreign body, because it had been found to be ferromagnetic and a barrier to MRI examination. X-ray examination confirmed the foreign body was located at the same site as 8 years prior. Although the patient was suffering from liver cirrhosis with thrombocytopenia and leukopenia, the foreign body was successfully removed under general anesthesia. The foreign body was 12 × 5 × 1 mm, weighed 0.48 g, and was ferromagnetic. The patient’s postoperative course was uneventful. X-ray examination confirmed the removal of the foreign body. Since the surgery, the patient has been in generally stable condition with no complications. This case was a rare example of a foreign body that needed to be removed for medical examination.
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Affiliation(s)
- K Yamamoto
- Department of Oral and Maxillofacial Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522, Japan
| | - Y Nakayama
- Department of Oral and Maxillofacial Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522, Japan
| | - I Yamamoto
- Department of Oral and Maxillofacial Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522, Japan
| | - Y Matsusue
- Department of Oral and Maxillofacial Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522, Japan
| | - H Shimotsuji
- Department of Oral and Maxillofacial Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522, Japan
| | - T Kirita
- Department of Oral and Maxillofacial Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522, Japan
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Matsuo M, Miyoshi M, Ueno M, Yamashita H, Kajita A, Takahashi M, Yamamoto M, Shiba Y, Uchida J, Nakashima S, Yamanishi M, Wakida K, Tabuchi S, Mikajiri R, Yamamoto I, Usami M, Sakamoto N. MON-P133: Analysis of the Body Composition Distribution by Confidence Ellipse of RXC Graph for Japanese Diabetes Mellitus Patients. Clin Nutr 2016. [DOI: 10.1016/s0261-5614(16)30767-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Ueno M, Miyoshi M, Matsuo M, Yamashita H, Kajita A, Hamada Y, Takahashi M, Yamamoto M, Yamamoto I, Mikajiri R, Tabuchi S, Wakida K, Yamanishi M, Hirai M, Usami M. SUN-P007: Effect of Dietary Fatty Acids and Micronutrients Intake on Serum Diamine Oxidase Activity in Healthy Women. Clin Nutr 2016. [DOI: 10.1016/s0261-5614(16)30350-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Mori N, Okada Y, Tsuchida N, Hatano Y, Habara M, Ishikawa S, Yamamoto I, Arai T. Preliminary Analysis of Modified Low-Density Lipoproteins in the Serum of Healthy and Obese Dogs and Cats. Front Vet Sci 2015; 2:34. [PMID: 26664963 PMCID: PMC4672184 DOI: 10.3389/fvets.2015.00034] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 08/25/2015] [Indexed: 11/13/2022] Open
Abstract
Oxidized low-density lipoprotein (LDL) is thought to play an important role in the inflammatory response associated with human obesity. The purpose of this preliminary study was to determine oxidized LDL concentrations in healthy dogs and cats, and to evaluate whether obesity affects oxidized LDL concentration, using 39 cats and 19 dogs that had visited two different veterinary clinics in Japan. We hypothesized that oxidized LDL concentrations measured against body condition score (BCS) may have a potential value in evaluating the qualities of accumulated or circulating lipids in obese dogs and cats that do not show signs of metabolic diseases. The mean oxidized LDL value in BCS3 dogs (2.4 ± 0.9 μg/dl) was very similar to that of BCS5 dogs (2.2 ± 0.3 μg/dl). The mean oxidized LDL value of BCS4 dogs was 7.2 ± 10.3 μg/dl and the highest among three groups. BCS4 dogs included two dogs whose oxidized LDL values were higher than the mean oxidized LDL value of healthy humans (11.2 ± 0.3 μg/dl). On the other hand, the mean oxidized LDL value of BCS3 cats was 2.5 ± 0.9 μg/dl, and those of BCS4 and 5 cats were higher than that of BCS3, but there was no significant difference. The BCS4 cat group included one cat with a higher oxidized LDL value, and the BCS5 group also included two cats with oxidized LDL values higher than the mean oxidized LDL value of healthy humans. Interestingly, the oxidized LDL values in two obese dogs and three obese cats were indeed higher than the mean oxidized LDL value of humans with coronary artery disease (20.1 ± 1.1 μg/dl). In conclusion, this preliminary study showed reference ranges of oxidized dogs and cats against BCS. Obesity alone does not appear to have any direct effect on serum oxidized LDL values in healthy dogs and cats.
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Affiliation(s)
- Nobuko Mori
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University , Tokyo , Japan
| | - Yuki Okada
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University , Tokyo , Japan
| | - Naoto Tsuchida
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University , Tokyo , Japan
| | - Yutaka Hatano
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University , Tokyo , Japan
| | - Makoto Habara
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University , Tokyo , Japan
| | - Shingo Ishikawa
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University , Tokyo , Japan
| | - Ichiro Yamamoto
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University , Tokyo , Japan
| | - Toshiro Arai
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University , Tokyo , Japan
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Fujiwara M, Mori N, Sato T, Tazaki H, Ishikawa S, Yamamoto I, Arai T. Changes in fatty acid composition in tissue and serum of obese cats fed a high fat diet. BMC Vet Res 2015; 11:200. [PMID: 26268360 PMCID: PMC4534048 DOI: 10.1186/s12917-015-0519-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [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: 03/02/2015] [Accepted: 07/31/2015] [Indexed: 11/10/2022] Open
Abstract
Background Obesity and overweight have been frequently observed in dogs and cats in recent years as in humans. The compositions of fatty acids (FAs) in the accumulated lipids in tissues of obese animals may have important roles in the process and mechanisms related to the onset of metabolic disorders. The purpose of this study was to evaluate the effects of a high fat (HF) diet, which contained a higher proportion of saturated FAs, on FA metabolism and distribution in obese cats. Cats (N = 12) were divided into control diet group (crude fat; 16.0 %) (n = 4) or a high fat (HF) diet group (crude fat; 23.9 %) (n = 8). The HF diet contained up to 60 % of calories from fat and was rich in stearic acid. Blood samples were collected at 0, 2, 4 and 6 weeks after the feeding. Adipose and liver tissues were collected at the 6th week after feeding. We performed analysis of histological findings and fatty acid composition in serum and tissues. Results Body weights of the cats significantly increased in the HF group. The increased activities of hepatic enzymes and the accumulation of lipid droplets were found in hepatocytes in the HF group at the 6th week after feeding. In this study, the stearic acid (C18:0)-rich HF diet contained less oleic acid (C18:1n-9) and more linoleic acid (C18:2n-6) than the control. However, the composition of oleic acid in the liver was higher, and those of stearic acid and linoleic acid were lower in the HF group at the 6th week after feeding. The higher oleic acid:stearic acid ratio suggests an increase in the conversion from saturated FA to mono-unsaturated FAs, which may reflect the hepatic storage of FAs as a relatively harmless form. Conclusion The stearic acid-rich HF diet increased hepatic lipid accumulation accompanied by the increased of hepatic oleic acid, increased serum oleic acid and activation of hepatic enzymes. These findings could be an important sign of early stages of dyslipidemia and hepatic damage. Also, the higher oleic acid:stearic acid ratio might be related to the increased activity of SCD-1, which suggests that the stearic acid-rich HF diet evoked hepatic lipogenesis in the feline liver.
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Affiliation(s)
- Megumi Fujiwara
- Department of Biochemistry and Molecular Biology, Nippon Medical School, 1-1-5 Senndagi, Bunkyou-ku, Tokyo, 113-8602, Japan.
| | - Nobuko Mori
- Department of Veterinary Science, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-City, Tokyo, 180-8602, Japan.
| | - Touko Sato
- Department of Veterinary Science, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-City, Tokyo, 180-8602, Japan.
| | - Hiroyuki Tazaki
- Department of Veterinary Science, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-City, Tokyo, 180-8602, Japan.
| | - Shingo Ishikawa
- Department of Veterinary Science, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-City, Tokyo, 180-8602, Japan.
| | - Ichiro Yamamoto
- Department of Veterinary Science, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-City, Tokyo, 180-8602, Japan.
| | - Toshiro Arai
- Department of Veterinary Science, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-City, Tokyo, 180-8602, Japan.
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Ishikawa S, Takemitsu H, Habara M, Mori N, Yamamoto I, Arai T. Sirtuin 1 suppresses nuclear factor κB induced transactivation and pro-inflammatory cytokine expression in cat fibroblast cells. J Vet Med Sci 2015; 77:1681-4. [PMID: 26165138 PMCID: PMC4710730 DOI: 10.1292/jvms.15-0245] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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] [Indexed: 12/18/2022] Open
Abstract
Nuclear factor κB (NF-κB) is a key factor in the development of chronic inflammation and
is deeply involved in age-related and metabolic diseases development. These diseases have
become a serious problem in cats. Sirtuin 1 (SIRT1) is associated with aging and
metabolism through maintaining inflammation via NF-κB. In addition, fibroblasts are
considered an important factor in the development of chronic inflammation. Therefore, we
aimed to examine the effect of cat SIRT1 (cSIRT1) on NF-κB in cat fibroblast cells. The
up-regulation of NF-κB transcriptional activity and pro-inflammatory cytokine mRNA
expression by p65 subunit of NF-κB and lipopolysaccharide was suppressed by cSIRT1 in cat
fibroblast cells. Our findings show that cSIRT1 is involved in the suppression of
inflammation in cat fibroblast cells.
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Affiliation(s)
- Shingo Ishikawa
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan
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Miyabe M, Gin A, Onozawa E, Daimon M, Yamada H, Oda H, Mori A, Momota Y, Azakami D, Yamamoto I, Mochizuki M, Sako T, Tamura K, Ishioka K. Genetic variants of the unsaturated fatty acid receptor GPR120 relating to obesity in dogs. J Vet Med Sci 2015; 77:1201-6. [PMID: 25960032 PMCID: PMC4638284 DOI: 10.1292/jvms.15-0031] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
G protein-coupled receptor (GPR) 120 is an unsaturated fatty acid receptor, which is
associated with various physiological functions. It is reported that the genetic variant
of GPR120, p.Arg270His, is detected more in obese people, and this genetic variation
functionally relates to obesity in humans. Obesity is a common nutritional disorder also
in dogs, but the genetic factors have not ever been identified in dogs. In this study, we
investigated the molecular structure of canine GPR120 and searched for candidate genetic
variants which may relate to obesity in dogs. Canine GPR120 was highly homologous to those
of other species, and seven transmembrane domains and two N-glycosylation sites were
conserved. GPR120 mRNA was expressed in lung, jejunum, ileum, colon, hypothalamus,
hippocampus, spinal cord, bone marrow, dermis and white adipose tissues in dogs, as those
in mice and humans. Genetic variants of GPR120 were explored in client-owned 141 dogs,
resulting in that 5 synonymous and 4 non-synonymous variants were found. The variant
c.595C>A (p.Pro199Thr) was found in 40 dogs, and the gene frequency was significantly
higher in dogs with higher body condition scores, i.e. 0.320 in BCS4–5 dogs, 0.175 in BCS3
dogs and 0.000 in BCS2 dogs. We conclude that c.595C>A (p.Pro199Thr) is a candidate
variant relating to obesity, which may be helpful for nutritional management of dogs.
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Affiliation(s)
- Masahiro Miyabe
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 180-8602, Japan
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Ishikawa S, Takemitsu H, Li G, Mori N, Yamamoto I, Arai T. Short communication: molecular characterization of dog and cat p65 subunits of NF-kappaB. Res Vet Sci 2015; 99:145-8. [PMID: 25770673 DOI: 10.1016/j.rvsc.2015.02.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 02/20/2015] [Accepted: 02/21/2015] [Indexed: 12/31/2022]
Abstract
Nuclear factor kappa B (NF-κB) plays an important role in the immune system. The p65 subunit is an important part of NF-κB unit, and studies of dog and cat p65 subunits of NF-κB (dp65 and cp65) are important in understanding their immune function. In this study, we described the molecular characterization of dp65 and cp65. The dp65 and cp65 complementary DNA encoded 542 and 555 amino acids, respectively, showing a high sequence homology with the mammalian p65 subunit (>87.5%). Quantitative polymerase chain reaction revealed that the p65 messenger RNA is highly expressed in the dog stomach and cat heart and adipose tissue. Functional NF-κB promoter-luciferase reporter vectors revealed that our isolated dp65 and cp65 cDNA encodes a functionally active protein. Transiently expressed dp65 and cp65 up-regulated pro-inflammatory cytokine expression levels in dog and cat, respectively. These findings suggest that dp65 and cp65 play important roles in regulating immune function.
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Affiliation(s)
- Shingo Ishikawa
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan
| | - Hiroshi Takemitsu
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan
| | - Gebin Li
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan
| | - Nobuko Mori
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan
| | - Ichiro Yamamoto
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan.
| | - Toshiro Arai
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan
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Kawasumi K, Yamamoto M, Koide M, Okada Y, Mori N, Yamamoto I, Arai T. Aging effect on plasma metabolites and hormones concentrations in riding horses. Open Vet J 2015. [DOI: 10.5455/ovj.2015.v5.i2.p154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Age effects on plasma metabolites, hormone concentrations, and enzyme activities related to energy metabolism were investigated in 20 riding horses. Animals were divided into two groups: young (3-8 years) and aged (11-18 years). They were clinically healthy, and not obese. Plasma adiponectin (ADN) concentrations in aged horses were significantly lower than those in young horses (mean±SE, 6.5±1.3 µg mL-1 vs, 10.9±1.7 µg mL-1, Mann-Whitney U test, respectively; P=0.0233). Plasma non-esterified fatty acid levels and Insulin and malondialdehyde concentrations in aged group tended to increase compared to those in young group although there were not significant differences statistically. In aged group, malate dehydrogenase/lactate dehydrogenase (M/L) ratio, which is considered an energy metabolic indicator, did not change significantly compared to that in young group. Present data suggest that aging may negatively affect nutrition metabolism, but not induce remarkable changes in M/L ratio in riding horses.
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Kawasumi K, Yamamoto M, Koide M, Okada Y, Mori N, Yamamoto I, Arai T. Aging effect on plasma metabolites and hormones concentrations in riding horses. Open Vet J 2015; 5:154-7. [PMID: 26623382 PMCID: PMC4663796] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Accepted: 10/26/2015] [Indexed: 11/17/2022] Open
Abstract
Age effects on plasma metabolites, hormone concentrations, and enzyme activities related to energy metabolism were investigated in 20 riding horses. Animals were divided into two groups: Young (3-8 years) and aged (11-18 years). They were clinically healthy, and not obese. Plasma adiponectin (ADN) concentrations in aged horses were significantly lower than those in young horses (mean±SE, 6.5±1.3 µg mL(-1) vs, 10.9±1.7 µg mL(-1), Mann-Whitney U test, respectively; P=0.0233). Plasma non-esterified fatty acid levels and Insulin and malondialdehyde concentrations in aged group tended to increase compared to those in young group although there were not significant differences statistically. In aged group, malate dehydrogenase/lactate dehydrogenase (M/L) ratio, which is considered an energy metabolic indicator, did not change significantly compared to that in young group. Present data suggest that aging may negatively affect nutrition metabolism, but not induce remarkable changes in M/L ratio in riding horses.
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Affiliation(s)
- K. Kawasumi
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan
| | - M. Yamamoto
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan
| | - M. Koide
- Japan Horseback Riding Club, 685-1 Kitanagai Miyoshicho, Iruma-gun, Saitama 354-0044, Japan
| | - Y. Okada
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan
| | - N. Mori
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan
| | - I. Yamamoto
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan
| | - T. Arai
- Department of Basic Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan,Corresponding Author: Toshiro Arai. School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan. Tel.: +81422314151. E-mail:
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Mizuno T, Yamaguchi S, Yamamoto I, Yamaoka R, Akino T. "Double-trick" visual and chemical mimicry by the juvenile orchid mantis hymenopus coronatus used in predation of the oriental honeybee apis cerana. Zoolog Sci 2014; 31:795-801. [PMID: 25483791 DOI: 10.2108/zs140126] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
It has long been hypothesized that the flower-like appearance of the juvenile orchid mantis is used as visual camouflage to capture flower-visiting insects, although it is doubtful whether such morphological resemblance alone could increase their success in hunting. We confirmed that juvenile female orchid mantes often succeed in capturing oriental honeybees, while adult females often fail. Since most of the honeybees approached the juveniles from the front, we hypothesized that juvenile orchid mantes might attract honeybees by emitting some volatile chemical cues. Gas chromatography-mass spectrometry analyses revealed that the mantes' mandibular adducts contained 3-hydroxyoctanoic acid (3HOA) and 10-hydroxy-(E)-2-decenoic acid (10HDA), both of which are also features of the pheromone communication of the oriental honeybee. We also successfully detected 3HOA emitted in the head space air only at the time when the juvenile mantes were attempting to capture their prey. Field bioassay showed that the Oriental Honeybee predominantly preferred to visit dummies impregnated with a mixture of the appropriate amounts and ratios of 3HOA and 10HDA. We therefore conclude that the juvenile mantes utilize these as allelochemicals to trick and attract oriental honeybees.
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Affiliation(s)
- Takafumi Mizuno
- 1 Applied Entomology Laboratory, Center for Bioresources Field Science, Kyoto Institute of Technology, Saga-ippongi-cho 1, Kyoto 616-8354, Japan
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Mitamura H, Watanuki R, Kaneko K, Onozaki N, Amou Y, Kittaka S, Kobayashi R, Shimura Y, Yamamoto I, Suzuki K, Chi S, Sakakibara T. Spin-chirality-driven ferroelectricity on a perfect triangular lattice antiferromagnet. Phys Rev Lett 2014; 113:147202. [PMID: 25325654 DOI: 10.1103/physrevlett.113.147202] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Indexed: 06/04/2023]
Abstract
Magnetic field (B) variation of the electrical polarization P(c) (∥c) of the perfect triangular lattice antiferromagnet RbFe(MoO(4))(2) is examined up to the saturation point of the magnetization for B⊥c. P(c) is observed only in phases for which chirality is predicted in the in-plane magnetic structures. No strong anomaly is observed in P(c) at the field at which the spin modulation along the c axis, and hence the spin helicity, exhibits a discontinuity to the commensurate state. These results indicate that the ferroelectricity in this compound originates predominantly from the spin chirality, the explanation of which would require a new mechanism for magnetoferroelectricity. The obtained field-temperature phase diagram of ferroelectricity agree well with those theoretically predicted for the spin chirality of a Heisenberg spin triangular lattice antiferromagnet.
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Affiliation(s)
- H Mitamura
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - R Watanuki
- Faculty of Engineering, Yokohama National University, Yokohama 240-8501, Japan
| | - K Kaneko
- Quantum Beam Science Center, Japan Atomic Energy Agency, Tokai, Naka, Ibaraki 319-1195, Japan
| | - N Onozaki
- Faculty of Engineering, Yokohama National University, Yokohama 240-8501, Japan
| | - Y Amou
- Faculty of Engineering, Yokohama National University, Yokohama 240-8501, Japan
| | - S Kittaka
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - R Kobayashi
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan and Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Y Shimura
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - I Yamamoto
- Faculty of Engineering, Yokohama National University, Yokohama 240-8501, Japan
| | - K Suzuki
- Faculty of Engineering, Yokohama National University, Yokohama 240-8501, Japan
| | - S Chi
- Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - T Sakakibara
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
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Aoki K, Kurihara M, Yamamoto I, Kuniyasu H, Takaki M, Kirita T. Elucidation of the taste disorder outbreak mechanism with the anticancer drug dosage. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Affiliation(s)
- Youichi Enokida
- Research Center for Nuclear Materials Recycle, Nagoya University, Chikusa-ku, Nagoya 4648603 Japan
| | - Ichiro Yamamoto
- Department of Nuclear Engineering, Nagoya University, Chikusa-ku, Nagoya 4648603 Japan
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Carland JE, Yamamoto I, Hanrahan JR, Abdel-Halim H, Lewis TM, Absalom N, Chebib M. A hydrophobic area of the GABA ρ₁ receptor containing phenylalanine 124 influences both receptor activation and deactivation. J Mol Neurosci 2014; 55:305-13. [PMID: 24816654 DOI: 10.1007/s12031-014-0322-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 04/30/2014] [Indexed: 10/25/2022]
Abstract
Experimental evidence suggests that GABA ρ1 receptors are potential therapeutic targets for the treatment of a range of neurological conditions, including anxiety and sleep disorders. Homology modelling of the GABA ρ1 extracellular N-terminal domain has revealed a novel hydrophobic area that extends beyond, but not including the GABA-binding site. Phenylalanine 124 (F124) is predicted to be involved in maintaining the structural integrity of the orthosteric-binding site. We have assessed the activity of a series of GABA ρ1 receptors that incorporate a mutation at F124. Wild-type and mutant human GABA ρ1 subunits were expressed in Xenopus laevis oocytes and AD293 cells, and the pharmacology and kinetic properties of the receptors were measured using electrophysiological analysis. Mutation of F124 had minimal effect on receptor pharmacology. However, the rate of deactivation was significantly increased compared to wild type. This study provides further information about the role of residues within a novel hydrophobic area of the GABA ρ1 receptor. This knowledge can help future studies into the design of potent and subtype-selective ligands with therapeutic value.
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Affiliation(s)
- J E Carland
- School of Medical Sciences, UNSW Medicine, The University of New South Wales, Kensington, NSW, 2052, Australia
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Schachtner T, Reinke P, Dorje C, Mjoen G, Midtvedt K, Strom EH, Oyen O, Jenssen T, Reisaeter AV, Smedbraaten YV, Sagedal S, Mjoen G, Fagerland MW, Hartmann A, Thiel S, Zulkarnaev A, Vatazin A, Vincenti F, Harel E, Kantor A, Thurison T, Hoyer-Hansen G, Craik C, Kute VB, Shah PS, Vanikar AV, Modi PR, Shah PR, Gumber MR, Patel HV, Engineer DP, Shah VR, Rizvi J, Trivedi HL, Malheiro J, Dias L, Martins LS, Fonseca I, Pedroso S, Almeida M, Castro-Henriques A, Cabrita A, Costa C, Ritta M, Sinesi F, Sidoti F, Mantovani S, Di Nauta A, Messina M, Cavallo R, Verflova A, Svobodova E, Slatinska J, Slavcev A, Pokorna E, Viklicky O, Yagan J, Chandraker A, Messina M, Diena D, Tognarelli G, Ranghino A, Bussolino S, Fop F, Segoloni GP, Biancone L, Leone F, Mauro MV, Gigliotti P, Lofaro D, Greco F, Perugini D, Papalia T, Perri A, Vizza D, Giraldi C, Bonofilgio R, Luis-Lima S, Marrero D, Gonzalez-Rinne A, Torres A, Salido E, Jimenez-Sosa A, Aldea-Perona A, Gonzalez-Posada JM, Perez-Tamajon L, Rodriguez-Hernandez A, Negrin-Mena N, Porrini E, Mjoen G, Pihlstrom H, Dahle DO, Holdaas H, Von Der Lippe N, Waldum B, Brekke F, Amro A, Reisaeter AV, Os I, Klin P, Sanabria H, Bridoux P, De Francesco J, Fortunato RM, Raffaele P, Kong J, Son SH, Kwon HY, Whang EJ, Choi WY, Yoon CS, Thanaraj V, Theakstone A, Stopper K, Ferraro A, Bhattacharjya S, Devonald M, Williams A, Mella A, Messina M, Gallo E, Fop F, Di Vico MC, Diena D, Pagani F, Gai M, Ranghino A, Segoloni GP, Biancone L, Cho HJ, Nho KW, Park SK, Kim SB, Yoshida K, Ishii D, Ohyama T, Kohguchi D, Takeuchi Y, Varga A, Sandor B, Kalmar-Nagy K, Toth A, Toth K, Szakaly P, Zulkarnaev A, Vatazin A, Kildushevsky A, Fedulkina V, Kantaria R, Staeck O, Halleck F, Rissling O, Naik M, Neumayer HH, Budde K, Khadzhynov D, Bhadauria D, Kaul A, Prasad N, Sharma RK, Sezer S, Bal Z, Erkmen Uyar M, Guliyev O, Erdemir B, Colak T, Ozdemir N, Haberal M, Caliskan Y, Yazici H, Artan AS, Oto OA, Aysuna N, Bozfakioglu S, Turkmen A, Yildiz A, Sever MS, Yagisawa T, Nukui A, Kimura T, Nannmoku K, Kurosawa A, Sakuma Y, Miki A, Damiano F, Ligabue G, De Biasi S, Granito M, Cossarizza A, Cappelli G, Martins LS, Fonseca I, Malheiro J, Henriques AC, Pedroso S, Almeida M, Dias L, Davide J, Cabrita A, Von During ME, Jenssen TG, Bollerslev J, Godang K, Asberg A, Hartmann A, Bachelet T, Martinez C, Bello A, Kejji S, Couzi L, Guidicelli G, Lepreux S, Visentin J, Congy-Jolivet N, Rostaing L, Taupin JL, Kamar N, Merville P, Sezer S, Bal Z, Erkmen Uyar M, Ozdemir H, Guliyev O, Yildirim S, Tutal E, Ozdemir N, Haberal M, Sezer S, Erkmen Uyar M, Bal Z, Guliyev O, Sayin B, Colak T, Ozdemir Acar N, Haberal M, Banasik M, Boratynska M, Koscielska-Kasprzak K, Kaminska D, Bartoszek D, Mazanowska O, Krajewska M, Zmonarski S, Chudoba P, Dawiskiba T, Protasiewicz M, Halon A, Sas A, Kaminska M, Klinger M, Stefanovic N, Cvetkovic T, Velickovic - Radovanovic R, Jevtovic - Stoimenov T, Vlahovic P, Rungta R, Das P, Ray DS, Gupta S, Kolonko A, Szotowska M, Kuczera P, Chudek J, Wiecek A, Sikora-Grabka E, Adamczak M, Szotowska M, Kuczera P, Madej P, Wiecek A, Amanova A, Kendi Celebi Z, Bakar F, Caglayan MG, Keven K, Massimetti C, Imperato G, Zampi G, De Vincenzi A, Fabbri GDD, Brescia F, Feriozzi S, Filipov JJ, Zlatkov BK, Dimitrov EP, Svinarov DA, Poesen R, De Vusser K, Evenepoel P, Kuypers D, Naesens M, Meijers B, Kocak H, Yilmaz VT, Yilmaz F, Uslu HB, Aliosmanoglu I, Ermis H, Dinckan A, Cetinkaya R, Ersoy FF, Suleymanlar G, Fonseca I, Oliveira JC, Santos J, Martins LS, Almeida M, Dias L, Pedroso S, Lobato L, Castro-Henriques A, Mendonca D, Watarai Y, Yamamoto T, Tsujita M, Hiramitsu T, Goto N, Narumi S, Kobayashi T, Dahle DO, Holdaas H, Reisaeter AV, Dorje C, Mjoen G, Line PD, Hartmann A, Housawi A, House A, Ng C, Denesyk K, Rehman F, Moist L, Musetti C, Battista M, Izzo C, Guglielmetti G, Airoldi A, Stratta P, Musetti C, Cena T, Quaglia M, Fenoglio R, Cagna D, Airoldi A, Amoroso A, Stratta P, Palmisano A, Degli Antoni AM, Vaglio A, Piotti G, Cremaschi E, Buzio C, Maggiore U, Lee MC, Hsu BG, Zalamea Jarrin F, Sanchez Sobrino B, Lafuente Covarrubias O, Karsten Alvarez S, Dominguez Apinaniz P, Llopez Carratala R, Portoles Perez J, Yildirim T, Yilmaz R, Turkmen E, Altindal M, Arici M, Altun B, Erdem Y, Dounousi E, Mitsis M, Naka K, Pappas H, Lakkas L, Harisis H, Pappas K, Koutlas V, Tzalavra I, Spanos G, Michalis L, Siamopoulos K, Iwabuchi T, Yagisawa T, Kimura T, Nanmoku K, Kurosawa A, Yasunaru S, Lee MC, Hsu BG, Yoshikawa M, Kitamura K, Fuji H, Fujisawa M, Nishi S, Carta P, Zanazzi M, Buti E, Larti A, Caroti L, Di Maria L, Minetti EE, Shi Y, Luo L, Cai B, Wang T, Zou Y, Wang L, Kim Y, Kim HS, Choi BS, Park CW, Yang CW, Kim YS, Chung BH, Baek CH, Kim M, Kim JS, Yang WS, Han DJ, Park SK, Mikolasevic I, Racki S, Lukenda V, Persic MP, Colic M, Devcic B, Orlic L, Sezer S, Gurlek Demirci B, Guliyev O, Colak T, Say N CB, Ozdemir Acar FN, Haberal M, Vali S, Ismal K, Sahay M, Civiletti F, Cantaluppi V, Medica D, Mazzeo AT, Assenzio B, Mastromauro I, Deambrosis I, Giaretta F, Fanelli V, Mascia L, Musetti C, Airoldi A, Quaglia M, Guglielmetti G, Battista M, Izzo C, Stratta P, Lakkas L, Naka K, Dounousi E, Koutlas V, Gkirdis I, Bechlioulis A, Evangelou D, Zarzoulas F, Kotsia A, Balafa O, Tzeltzes G, Nakas G, Pappas K, Kalaitzidis R, Katsouras C, Michalis L, Siamopoulos K, Tutal E, Erkmen Uyar M, Uyanik S, Bal Z, Guliyev O, Toprak SK, Ilhan O, Sezer S, Bal Z, Ekmen Uyar M, Guliyev O, Sayin B, Colak T, Sezer S, Haberal M, Hernandez Vargas H, Artamendi Larranaga M, Ramalle Gomara E, Gil Catalinas F, Bello Ovalle A, Pimentel Guzman G, Coloma Lopez A, Sierra Carpio M, Gil Paraiso A, Dall Anesse C, Beired Val I, Huarte Loza E, Choy BY, Kwan L, Mok M, Chan TM, Yamakawa T, Kobayashi A, Yamamoto I, Mafune A, Nakada Y, Tannno Y, Tsuboi N, Yamamoto H, Yokoyama K, Ohkido I, Yokoo T, Luque Y, Anglicheau D, Rabant M, Clement R, Kreis H, Sartorius A, Noel LH, Timsit MO, Legendre C, Rancic N, Vavic N, Dragojevic-Simic V, Katic J, Jacimovic N, Kovacevic A, Mikov M, Veldhuijzen NMH, Rookmaaker MB, Van Zuilen AD, Nquyen TQ, Boer WH, Mjoen G, Pihlstrom H, Dahle DO, Holdaas H, Sahtout W, Ghezaiel H, Azzebi A, Ben Abdelkrim S, Guedri Y, Mrabet S, Nouira S, Ferdaws S, Amor S, Belarbia A, Zellama D, Mokni M, Achour A, Viklicky O, Parikova A, Slatinska J, Hanzal V, Fronek J, Orandi BJ, James NT, Montgomery RA, Desai NM, Segev DL, Fontana F, Ballestri M, Magistroni R, Damiano F, Cappelli G. TRANSPLANTATION CLINICAL 1. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Volgina G, Gadzhikulieva M, Uyshuk N, Kawamura E, Hisano S, Nakashima H, Saito T, Boor P, Babi kova J, Martin IV, Bucher EB, Eriksson U, Van Roeyen CRC, Eitner F, Floege J, Peutz-Kootstra CJ, Ostendorf T, Leh S, Leh F, Bjanes TK, Ohldieck C, Svarstad E, Han BG, Kim JS, Yang JW, Choi SO, Lollinga W, Rahbar A, De Wit RH, Riezebos-Brilman A, Soderberg-Naucler C, Van Son WJ, Sanders JS, Smit MJ, Van Den Born J, Koike K, Tsuboi N, Ikezumi Y, Go K, Ogura M, Saitoh A, Yokoo T, Yamaguchi T, Nokiba H, Hara M, Morito T, Kakihana K, Ohashi K, Ando M, Kimura T, Yagisawa T, Nanmoku K, Kurosawa A, Sakuma Y, Miki A, Nukui A, Alfieri CM, Regalia A, Simonini P, Ikehata M, Chatziantoniou C, Moroni G, Rastaldi MP, Messa P, Bockmeyer C, Sauberlich K, Zell S, Zeuschner P, Agustian PA, Wittig J, Becker JU, Peters B, Andersson Y, Hadimeri H, Stegmayr B, Molne J, Li T, He Y, Chen H, Chen J, Kobayashi A, Mitome J, Yamamoto I, Mafune A, Yamakawa T, Nakada Y, Tanno Y, Ohkido I, Tsuboi N, Yamamoto H, Yokoyama K, Yokoo T, Dervishi E, Buti E, Nozzoli C, Caldini LA, Giannakakis C, Minetti EE, Cirami L, Bergesio F, Ryuge A, Nomura A, Shimizu H, Fujita Y, Nishi S, Goto S, Nakai K, Ito J, Fujii H, Hara S, Mori G, Ligabue G, Cappelli G, Pinho A, Moreno F, Dias R, Vizcaino R, Ossareh S, Asgari M, Abdi E, Ataipour Y, Malakoutian T, Saddadi F, Rayatnia M. RENAL HISTOPATHOLOGY. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tahara K, Miyajima K, Ono M, Sugio Y, Yamamoto I, Tamiya S. Crystal-storing histiocytosis associated with marginal-zone lymphoma. Jpn J Radiol 2014; 32:296-301. [PMID: 24633964 DOI: 10.1007/s11604-014-0302-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Accepted: 02/26/2014] [Indexed: 11/29/2022]
Abstract
We report a rare case of crystal-storing histiocytosis (CSH) associated with marginal-zone lymphoma. A 91-year-old woman with a history of breast cancer presented with masses of the posterior neck, right breast, and left upper arm. An enlarging mass of the neck was removed and was histologically diagnosed as CSH, associated with marginal-zone lymphoma. Masses in the breast and upper arm were evaluated by needle biopsy and revealed as CSH. CSH is a rare condition characterized by the intrahistiocytic accumulation of crystallized immunoglobulins, and is associated with disorders in which monoclonal immunoglobulins are expressed. To the best of our knowledge, there are few previous descriptions of CSH which include the imaging features of this disease. In the present case, the masses showed hypoechogenicity with internal patchy hyperechoic areas on ultrasonography, and an iso-signal to slight hyperintensity compared with muscle on T2-weighted magnetic resonance imaging. We report the imaging findings in CSH and discuss their diagnostic implications.
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Affiliation(s)
- Keiichiro Tahara
- Department of Radiology, Kitakyushu Municipal Medical Center, 2-1-1 Bashaku, Kokurakita-ku, Kitakyushu, Japan
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Li G, Kawasumi K, Okada Y, Ishikawa S, Yamamoto I, Arai T, Mori N. Comparison of plasma lipoprotein profiles and malondialdehyde between hyperlipidemia dogs with/without treatment. BMC Vet Res 2014; 10:67. [PMID: 24625120 PMCID: PMC3995584 DOI: 10.1186/1746-6148-10-67] [Citation(s) in RCA: 5] [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: 09/18/2013] [Accepted: 03/05/2014] [Indexed: 11/15/2022] Open
Abstract
Background The aim of this study is to compare metabolic parameters, malondialdehyde as a lipid oxidation marker, and lipid profiles between dogs with untreated hyperlipidemia and hyperlipidemia with treatment, in order to examine the usefulness of malondialdehyde and lipid profiles as diagnostic parameters at early stages of hyperlipidemia. Results Dog samples were collected from four different veterinary clinics across Japan from March to June 2013. They were separated into three groups: control, untreated hyperlipidemia based on temporally screening, and hyperlipidemia with current anti-hyperlipidemic (statins and fibrates) treatment. Triglyceride levels of untreated hyperlipidemia dogs were significantly higher than those of control dogs. ALT levels of hyperlipidemic dogs with treatment were the highest among three groups. VLDL and LDL of both cholesterol and triglyceride of untreated hyperlipidemia dogs were the highest among three groups. HDL1 levels in triglyceride of hyperlipidemia dogs with treatment were significantly higher than those of control and untreated hyperlipidemia dog. Malondialdehyde concentrations of untreated hyperlipidemia dogs were significantly higher than those of control and hyperlipidemic dogs with treatment. Conclusions In this study, dogs with untreated hyperlipidemia clearly showed abnormal lipid status, whereas hyperlipidemic dogs under anti-hyperlipidemia treatment showed more normal lipid status suggesting the effectiveness of the therapy. Anti-hyperlipidemics (statins and fibrates) for dogs are also effective in relieving elevated levels of lipids and lipid oxidation. Plasma lipid (triglyceride and cholesterol) profiles and malondialdehyde are useful diagnostic tools for identifying early stages of untreatment hyperlipidemia in dogs.
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Affiliation(s)
| | | | | | | | | | | | - Nobuko Mori
- Department of Veterinary Bioscience, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan.
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Kawasumi K, Kashiwado N, Okada Y, Sawamura M, Sasaki Y, Iwazaki E, Mori N, Yamamoto I, Arai T. Age effects on plasma cholesterol and triglyceride profiles and metabolite concentrations in dogs. BMC Vet Res 2014; 10:57. [PMID: 24597741 PMCID: PMC3946593 DOI: 10.1186/1746-6148-10-57] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [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: 11/22/2013] [Accepted: 02/25/2014] [Indexed: 11/30/2022] Open
Abstract
Background In dogs, occurrence of lipid metabolism disorders such as obesity and diabetes mellitus has increased markedly in recent years. Hyperlipidemia has been regarded as a common characteristic for obese animals and hyperlipidemic condition may be associated with inflammation, oxidative stress and lipid composition changes. In this study, we investigated the changes in plasma cholesterol and triglyceride (TG) profiles and metabolite concentrations in 24 dogs (young group: 0-7 years old, n = 12, aged group: 8-13 years old, n = 12). Results Plasma adiponectin (ADN) concentrations were significantly lower in aged dogs than those in young dogs (mean ± SD, 17.2 ± 10.0 μg mL-1 vs 29.3 ± 12.5 μg mL-1, respectively; P <0.05). Although there were no significant differences statistically, aged dogs showed significantly higher plasma alpha1- acid glycoprotein (alpah1-AG) levels compared to those in young dogs. Plasma cholesterol lipoprotein and TG lipoprotein were divided into four fractions by biphasic agarose gel electrophoresis technique. The levels of the third TG-lipoprotein fraction from the positive pole (TG Fraction 3) were significantly higher in aged dogs than in young dogs (mean ± SD, 143.0 ± 109.3 mg dL-1 vs 55.2 ± 31.3 mg dL-1, respectively; P <0.05). On the correlation coefficient analysis by Peason’s method, moderate positive correlations were seen between the age and TG (r = 0.446, P = 0.029), TG Fraction 3 (r = 0.516, P = 0.010), malondialdehyde (r = 0.146, P = 0.043), alpha-1 AG (r = 0.448, P = 0.028) levels, respectively. Moderate negative correlations were seen the age and total cholesterol (TC) Fraction 2 (r = -0.446, P = 0.029), glucose (r = -0.637, P = 0.001), ADN (r = -0.408, P = 0.048), respectively. Conclusions Present data suggest biochemical characteristics of lipid metabolism disorder may be affected by aging in dogs.
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Affiliation(s)
- Koh Kawasumi
- Department of Veterinary Science, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho Musashino, Tokyo 180-8602, Japan.
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Tanaka M, Nakao N, Yamamoto I, Tsushima N, Ohta Y. Changes in expression levels of neurotensin precursor and receptor mRNA in chicken intestinal tissues and liver during late embryonic and early posthatching development. Poult Sci 2013; 92:2765-71. [DOI: 10.3382/ps.2012-02939] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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Ishikawa S, Li G, Takemitsu H, Fujiwara M, Mori N, Yamamoto I, Arai T. Change in mRNA expression of sirtuin 1 and sirtuin 3 in cats fed on high fat diet. BMC Vet Res 2013; 9:187. [PMID: 24073959 PMCID: PMC3849300 DOI: 10.1186/1746-6148-9-187] [Citation(s) in RCA: 10] [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] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Accepted: 09/23/2013] [Indexed: 11/23/2022] Open
Abstract
Background Mammalian sirtuins are homologs to the yeast silent information regulator 2 (Sir2), which is an NAD-dependent deacetylase. Sirtuins are comprised of 7 proteins, and each has different target proteins. Sirtuin 1 (SIRT1) plays important roles in maintaining metabolic functions and immune responses, and SIRT3 protects cells from oxidative stress-induced cell death. Both SIRT1 and SIRT3 are regulated by metabolic status and aging. Hence, SIRT1 and SIRT3 have been researched in metabolic diseases, such as type 2 diabetes mellitus (DM), fatty liver, and heart diseases. Although these diseases have been increasing, there is little information about relation between the diseases and SIRT1 and SIRT3 in cats. Therefore we cloned SIRT1 and SIRT3 cDNA, examined mRNA expression in cat tissues, and investigated the changes in SIRT1 and SIRT3 mRNA expression in peripheral blood leukocyte of cats fed on HFD for 6 weeks. Results Cat SIRT1 and SIRT3 contained a catalytic core region and showed high sequence homology with other vertebrate SIRT1 (>61.3%) and SIRT3 (>65.9%) amino acids. Real-time polymerase chain reaction analyses revealed that high expression levels were observed in the liver and skeletal muscle for SIRT1 and in the heart for SIRT3 in cats. In addition, both cat SIRT1 and SIRT3 expression levels in the pancreas were different between individuals. Cat SIRT1 mRNA expression in peripheral blood leukocytes was significantly elevated in obese cats fed on HFD (P < 0.05). Conclusions Cat SIRT1 and SIRT3 genes are highly conserved among vertebrates, and HFD feeding may be related to SIRT1 mRNA expression mechanisms in cat peripheral blood leukocytes.
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Affiliation(s)
- Shingo Ishikawa
- Department of Veterinary Science, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, 180-8602 Musashino, Tokyo, Japan.
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