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Miyanishi K, Igase M, Murakami M, Sakai Y, Sakurai M, Tani K, Motegi T, Mizuno T. Establishment of a novel canine soft tissue sarcoma cell line and comparison of its characteristics with other soft tissue sarcoma cell lines. Res Vet Sci 2024; 171:105245. [PMID: 38554610 DOI: 10.1016/j.rvsc.2024.105245] [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] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 01/19/2024] [Accepted: 03/24/2024] [Indexed: 04/02/2024]
Abstract
Soft tissue sarcoma (STS) is a relatively common tumor in dogs. However, very few canine STS cell lines are available. This study aimed to establish a new cell line, STS-YU1, derived from a recurrence of myxosarcoma in an 11-year-old mixed-breed dog. We examined STS-YU1 for in vitro cell proliferation, migration, anticancer drug sensitivity, transcriptome analysis using next-generation sequencing (RNA-seq), and in vivo tumorigenicity in mice and compared it with previously established STS cell lines, MUMA-G and A72. The cell proliferation and migration of STS-YU1 were higher than MUMA-G although MUMA-G only exhibited tumorigenicity in mice. STS-YU1 showed dose-dependent cytotoxicity to anticancer drugs, but with weak effects. RNA-seq analysis revealed the molecular phenotype of STS-YU1 was different from that of a previously reported cell line, A72. Hence, the use of STS-YU1 would help in efficient drug screening against canine STS in vitro.
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Affiliation(s)
- Kyohei Miyanishi
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8511, Japan
| | - Masaya Igase
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8511, Japan
| | - Mami Murakami
- Laboratory of Veterinary Clinical Oncology, Joint Department of Veterinary Medicine, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Yusuke Sakai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8511, Japan
| | - Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8511, Japan
| | - Kenji Tani
- Laboratory of Veterinary Surgery, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8511, Japan
| | - Tomoki Motegi
- Section of Computational Biomedicine, Boston University Chobanian & Avedisian School of Medicine, 72 East Concord Street E6, Boston, MA 02118, USA
| | - Takuya Mizuno
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8511, Japan.
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Kusumoto M, Jitsuiki M, Motegi T, Harada K. Pharmacokinetic and Pharmacodynamic Analysis of the Oxacephem Antibiotic Flomoxef against Extended-Spectrum β-Lactamase-Producing Enterobacterales from Dogs. Int J Mol Sci 2024; 25:1105. [PMID: 38256182 PMCID: PMC10816067 DOI: 10.3390/ijms25021105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024] Open
Abstract
Flomoxef (FMX) may be a potential alternative to carbapenems for dogs infected with Enterobacterales-producing extended-spectrum β-lactamase (ESBL-E). However, the appropriate dosage of FMX in dogs with ESBL-E infections has yet to be established. This study was carried out to establish appropriate treatment regimens for FMX against ESBL-E infections in dogs using a pharmacokinetics-pharmacodynamics (PK-PD) approach. Five dogs were intravenously administered at a bolus dose of FMX (40 mg/kg body weight). Serum concentrations of FMX were calculated with high-performance liquid chromatography-tandem mass spectrometry, and then applied to determine PK indices based on a non-compartmental model. The cumulative fraction of response (CFR) was estimated based on the dissemination of minimum inhibitory concentrations among wild-type ESBL-E from companion animals. From the results, the dosage regimens of 40 mg/kg every 6 and 8 h were estimated to attain a CFR of >90% for wild-type isolates of ESBL-producing Escherichia coli, Klebsiella pneumoniae, and Proteus mirabilis for dogs. By contrast, all regimens had a CFR of <80% for ESBL-producing Enterobacter cloacae. Our results indicated that dosage regimens of 40 mg/kg FMX every 6 and 8 h can be a non-carbapenem treatment for canine infections of ESBL-producing Escherichia coli, Klebsiella pneumoniae, and Proteus mirabilis, but not for those of ESBL-producing Enterobacter cloacae.
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Affiliation(s)
- Mizuki Kusumoto
- Laboratory of Veterinary Internal Medicine, Tottori University, Minami 4-101, Koyama-Cho, Tottori-shi, Tottori 680-8550, Japan
- Joint Graduate School of Veterinary Sciences, Tottori University, Minami 4-101, Koyama-Cho, Tottori-shi, Tottori 680-8550, Japan
| | - Makoto Jitsuiki
- Laboratory of Veterinary Internal Medicine, Tottori University, Minami 4-101, Koyama-Cho, Tottori-shi, Tottori 680-8550, Japan
| | - Tomoki Motegi
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-Ku, Tokyo 113-0032, Japan;
| | - Kazuki Harada
- Laboratory of Veterinary Internal Medicine, Tottori University, Minami 4-101, Koyama-Cho, Tottori-shi, Tottori 680-8550, Japan
- Joint Graduate School of Veterinary Sciences, Tottori University, Minami 4-101, Koyama-Cho, Tottori-shi, Tottori 680-8550, Japan
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Toyoda H, Tani A, Goto-Koshino Y, Motegi T, Sakamoto M, Mochizuki T, Harada K, Kobayashi T, Setoguchi A, Shizuta Y, Mizuno T, Irie M, Nakamichi J, Tsujimoto H, Ohmi A, Fukuoka R, Nakamura Y, Tomiyasu H. Gene expression profiles associated with early relapse during first remission induction in canine multicentric high-grade B-cell lymphoma. J Vet Med Sci 2024; 86:18-27. [PMID: 37952972 PMCID: PMC10849849 DOI: 10.1292/jvms.23-0269] [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] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 10/29/2023] [Indexed: 11/14/2023] Open
Abstract
Although chemotherapy using CHOP-based protocol induces remission in most cases of canine multicentric high-grade B-cell lymphoma (mhBCL), some cases develop early relapse during the first induction protocol. In this study, we examined the gene expression profiles of canine mhBCL before chemotherapy and investigated their associations with early relapse during the first whole CHOP-based protocol. Twenty-five cases of mhBCL treated with CHOP-based protocol as first induction chemotherapy were included in this study. Sixteen cases completed the first whole CHOP-based protocol without relapse (S-group), and nine developed relapse during the chemotherapy (R-group). RNA-seq was performed on samples from neoplastic lymph nodes. Differentially expressed genes (DEGs) were extracted by the comparison of gene expression profiles between S- and R-groups, and the differences in the expression levels of these genes were validated by RT-qPCR. Extracted 179 DEGs included the genes related to chemokine CC motif ligand, T-cell receptor signaling pathway, and PD-L1 expression and PD-1 checkpoint pathway. We focused on chemokine CC motif ligand, and CCL4 was confirmed to be significantly downregulated in the R-group (P=0.039). We also focused on the genes related to T-cell signaling pathway, and CD3E (P=0.039), ITK (P=0.023), and LAT (P=0.023) genes were confirmed to be significantly upregulated in the R-group. The current results suggest that both changes in tumor cells and the interactions between tumor cells and immune cells are associated with the efficacy of the chemotherapy for first remission induction.
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Affiliation(s)
- Hiroto Toyoda
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Akiyoshi Tani
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yuko Goto-Koshino
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Tomoki Motegi
- Boston University School of Medicine, Department of Medicine, Division of Computational Biomedicine, Boston, MA, USA
| | - Mika Sakamoto
- Genome Informatics Laboratory, National Institute of Genetics, Shizuoka, Japan
| | - Takako Mochizuki
- Genome Informatics Laboratory, National Institute of Genetics, Shizuoka, Japan
| | - Kei Harada
- Japan Small Animal Cancer Center, Saitama, Japan
| | | | | | | | - Takuya Mizuno
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Graduate School of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | | | - Jun Nakamichi
- Japan Animal Referral Medical Center, Kanagawa, Japan
| | | | - Aki Ohmi
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Ray Fukuoka
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yasukazu Nakamura
- Genome Informatics Laboratory, National Institute of Genetics, Shizuoka, Japan
| | - Hirotaka Tomiyasu
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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Shinada M, Kato D, Motegi T, Tsuboi M, Ikeda N, Aoki S, Iguchi T, Li T, Kodera Y, Ota R, Hashimoto Y, Takahashi Y, Chambers J, Uchida K, Kato Y, Nishimura R, Nakagawa T. Podoplanin Drives Amoeboid Invasion in Canine and Human Mucosal Melanoma. Mol Cancer Res 2023; 21:1205-1219. [PMID: 37493578 DOI: 10.1158/1541-7786.mcr-22-0929] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 04/09/2023] [Accepted: 07/13/2023] [Indexed: 07/27/2023]
Abstract
Mucosal melanoma metastasizes at an early stage of the disease in human and dog. We revealed that overexpression of podoplanin in tumor invasion fronts (IF) was related to poor prognosis of dogs with mucosal melanoma. Moreover, podoplanin expressed in canine mucosal melanoma cells promotes proliferation and aggressive amoeboid invasion by activating Rho-associated kinase (ROCK)-myosin light chain 2 (MLC2) signaling. PDPN-ROCK-MLC2 signaling plays a role in cell-cycle arrest and cellular senescence escape as a mechanism for regulating proliferation. Podoplanin induces amoeboid invasion in the IFs of mouse xenografted tumor tissues, similar to canine mucosal melanoma clinical samples. We further identified that podoplanin expression was related to poor prognosis of human patients with mucosal melanoma, and human mucosal melanoma with podoplanin-high expression enriched gene signatures related to amoeboid invasion, similar to canine mucosal melanoma. Overall, we propose that podoplanin promotes canine and human mucosal melanoma metastasis by inducing aggressive amoeboid invasion and naturally occurring canine mucosal melanoma can be a novel research model for podoplanin expressing human mucosal melanoma. IMPLICATIONS Podoplanin could be a new therapeutic target to restrict the metastatic dissemination of canine and human mucosal melanoma.
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Affiliation(s)
- Masahiro Shinada
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Daiki Kato
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Tomoki Motegi
- Veterinary Medical Center, The University of Tokyo, Tokyo, Japan
| | - Masaya Tsuboi
- Veterinary Medical Center, The University of Tokyo, Tokyo, Japan
| | - Namiko Ikeda
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Susumu Aoki
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Takaaki Iguchi
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Toshio Li
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yuka Kodera
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Ryosuke Ota
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yuko Hashimoto
- Veterinary Medical Center, The University of Tokyo, Tokyo, Japan
| | - Yosuke Takahashi
- Veterinary Medical Center, The University of Tokyo, Tokyo, Japan
| | - James Chambers
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kazuyuki Uchida
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yukinari Kato
- Department of Antibody Drug Development, Tohoku University Graduate School of Medicine, Miyagi, Japan
- Department of Molecular Pharmacology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Ryohei Nishimura
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Takayuki Nakagawa
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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Kusumoto M, Motegi T, Uno H, Yokono M, Harada K. Pharmacokinetic-pharmacodynamic analysis of cefmetazole against extended-spectrum β-lactamase-producing Enterobacteriaceae in dogs using Monte Carlo Simulation. Front Vet Sci 2023; 10:1270137. [PMID: 37841458 PMCID: PMC10569024 DOI: 10.3389/fvets.2023.1270137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 09/15/2023] [Indexed: 10/17/2023] Open
Abstract
Introduction The spread of extended-spectrum β-lactamase-producing Enterobacteriaceae (ESBL-E) is a serious concern in companion animal medicine owing to their ability to develop multidrug resistance. Cefmetazole (CMZ) is a candidate drug for treating ESBL-E infections; however, its regimen in dogs has not been established. In this study, we investigated the pharmacokinetic (PK) indices of CMZ in dogs and performed PK-pharmacodynamic (PD) analyses using Monte Carlo Simulation (MCS). Methods In total, six healthy dogs received an intravenous bolus dose of CMZ (40 mg/kg body weight). Serum CMZ concentrations were evaluated using liquid chromatography-mass spectrometry, and PK indices were determined based on non-compartmental analysis. The PK-PD cut-off (COPD) values were calculated as the highest minimum inhibitory concentration (MIC) that achieved ≥90% probability of target attainment for a target value of unbounded drug concentration exceeding 40% of the dosing interval. The cumulative fraction of response (CFR) was calculated based on the MIC distribution of wild-type ESBL-E from companion animals. Results The area under the concentration-time curve and elimination half-time were 103.36 ± 7.49 mg·h/L and 0.84 ± 0.07 h, respectively. MCS analysis revealed that COPD values for regimens of 40 mg/kg q12, q8h, and q6h were ≤ 0.5, ≤2, and ≤ 4 μg/mL, respectively. A regimen of 40 mg/kg q6h was estimated to achieve a CFR of 80-90% for Escherichia coli and Klebsiella pneumoniae. By contrast, all regimens exhibited a CFR of ≤70% for Proteus mirabilis and Enterobacter cloacae. Discussion We conclude that CMZ at 40 mg/kg q6h could be a viable treatment regimen for dogs infected with ESBL-producing Escherichia coli and Klebsiella pneumoniae.
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Affiliation(s)
- Mizuki Kusumoto
- Laboratory of Veterinary Internal Medicine, Tottori University, Tottori, Japan
- Joint Graduate School of Veterinary Sciences, Tottori University, Tottori, Japan
| | - Tomoki Motegi
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo, Japan
| | - Haruna Uno
- Laboratory of Veterinary Internal Medicine, Tottori University, Tottori, Japan
| | - Mizuki Yokono
- Technical Department, Tottori University, Tottori, Japan
| | - Kazuki Harada
- Laboratory of Veterinary Internal Medicine, Tottori University, Tottori, Japan
- Joint Graduate School of Veterinary Sciences, Tottori University, Tottori, Japan
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Uchida M, Matsumiya Y, Tsuboi M, Uchida K, Nakagawa T, Fujii W, Kobayashi T, Tsujimoto H, Ohmi A, Tomiyasu H, Motegi T, Maeda S, Momoi Y, Yonezawa T. Serum level of apoptosis inhibitor of macrophage in dogs with histiocytic sarcoma and its association with the disease. Vet Comp Oncol 2023; 21:391-400. [PMID: 37088561 DOI: 10.1111/vco.12897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 12/27/2022] [Accepted: 04/11/2023] [Indexed: 04/25/2023]
Abstract
Histiocytic sarcoma (HS) is a rare neoplasm of macrophages or dendritic cells with a poor prognosis in dogs. As the apoptosis inhibitor of macrophage (AIM) is characteristically expressed in canine macrophages, we hypothesised that AIM is involved in the development or progression of HS in dogs. In this study, AIM expression in the tumour region and serum AIM levels in dogs with HS was assessed. Additionally, the effects of AIM overexpression on HS cell viability were investigated using a HS cell line that was selected from five validated HS cell lines. Immunohistochemistry showed that AIM expression was observed in the cytoplasm of the HS cells. CD36, a candidate AIM receptor, was also observed on the cell membrane of HS cells. When the serum AIM level was detected in 36 dogs with HS and 10 healthy dogs via western blot analysis, the AIM levels in the HS dogs were significantly higher than those in the controls. AIM mRNA expression in the 5 HS cell lines varied but was higher than that in the other tumour-derived lines. Among the five HS cell lines, DH82 originally had lower AIM and the highest CD36 expression. When AIM was overexpressed in DH82, therein cell growth speed and invasion, apoptosis inhibition and phagocytic activity were strongly upregulated. These data suggest that elevated intra-tumour expression of AIM could induce the progression of HS cells in dogs. Moreover, elevated serum AIM levels in dogs with HS could serve as a biomarker of HS.
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Affiliation(s)
- Mona Uchida
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yuki Matsumiya
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Masaya Tsuboi
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kazuyuki Uchida
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Takayuki Nakagawa
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Wataru Fujii
- Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | | | - Hajime Tsujimoto
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Aki Ohmi
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Hirotaka Tomiyasu
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Tomoki Motegi
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Shingo Maeda
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yasuyuki Momoi
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Tomohiro Yonezawa
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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Yoshida S, Maeda S, Yonezawa T, Motegi T. Evaluation of antiseizure medications including zonisamide in feline idiopathic epilepsy at a referral hospital in Japan. Open Vet J 2023; 13:846-853. [PMID: 37614732 PMCID: PMC10443824 DOI: 10.5455/ovj.2023.v13.i7.6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 06/14/2023] [Indexed: 08/25/2023] Open
Abstract
Background Idiopathic epilepsy in cats is a more common disease than previously thought, but little information is available about the medical treatment of feline idiopathic epilepsy. Aim To assess the therapeutic efficacy and safety of antiseizure medication (ASM) for a minimum of 6 months, including zonisamide (ZNS), in feline idiopathic epilepsy at a referral hospital in Japan. Methods Twenty cats diagnosed with idiopathic epilepsy treated with ASMs were retrospectively included. Results Nine cats that were finally treated with phenobarbital (PB) monotherapy reached the primary goal (the seizure frequency after the treatment intervention was less than one seizure every 3 months). Three cats were treated with ZNS monotherapy and two reached the primary goal. Eight cats finally received combination therapy. Two of the three cats receiving PB and ZNS therapy achieved the primary goal, but one was considered no responder. Five cats [PB + diazepam (DZP), ZNS + DZP, and ZNS + levetiracetam + DZP] decreased the seizure frequency and reached the primary goal in all but one cat reached the secondary goal. Adverse events were observed in eight patients, but these were curable. Two patients had vomiting after ZNS monotherapy, one had diarrhea, and another was an increase in sleeping hours. Conclusion PB was frequently used and seemed effective as both monotherapy and combination therapy. Some cats were treated with ASM protocols containing ZNS. ZNS may be available to treat idiopathic epilepsy in cats. However, ZNS administration may cause adverse events, such as gastrointestinal toxicity, in cats.
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Affiliation(s)
- Shino Yoshida
- Faculty of Veterinary Medicine, Hokkaido University Veterinary Teaching Hospital, Hokkaido University, Hokkaido, Japan
| | - Shingo Maeda
- Department of Veterinary Clinical Pathobiology, Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Tomohiro Yonezawa
- Department of Veterinary Clinical Pathobiology, Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Tomoki Motegi
- Section of Computational Biomedicine, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, USA
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Shitamori F, Nonogaki A, Motegi T, Matsumoto Y, Sakamoto M, Tanizawa Y, Nakamura Y, Yonezawa T, Momoi Y, Maeda S. Large-scale epidemiological study on feline autosomal dominant polycystic kidney disease and identification of novel PKD1 gene variants. J Feline Med Surg 2023; 25:1098612X231185393. [PMID: 37489504 DOI: 10.1177/1098612x231185393] [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] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
OBJECTIVES Autosomal dominant polycystic kidney disease (ADPKD) is a common inherited disease in cats. In most cases, the responsible abnormality is a nonsense single nucleotide polymorphism in exon 29 of the PKD1 gene (chrE3:g.42858112C>A, the conventional PKD1 variant). The aim of this study was to conduct a large-scale epidemiological study of ADPKD caused by the conventional PKD1 variant in Japan and to search for novel polymorphisms by targeted resequencing of the PKD1 using a next-generation sequencer. METHODS A total of 1281 cats visiting the Veterinary Medical Center of the University of Tokyo were included in this study. DNA was extracted from the blood of each cat. We established a novel TaqMan real-time PCR genotyping assay for the conventional PKD1 variant, and all cases were examined for the presence of this variant. Targeted resequencing of all exons of the PKD1 was performed on the DNA of 23 cats with the conventional PKD1 variant, six cats diagnosed with cystic kidneys but without this variant, and 61 wild-type normal cats. RESULTS Among the 1281 cats examined in this study, 23 (1.8%) harboured the conventional PKD1 variant. The odds of having the conventional PKD1 variant were significantly higher in Persian cats, Scottish Folds and Exotic Shorthairs than in the other breeds, although the number of cases in each breed was small. Furthermore, we identified four variants unique to cats with cystic kidneys that were not found in wild-type normal cats, all of which were in exon 15. In particular, two (chrE:g.42848725delC, pGly1641fs and chrE:g.42850283C>T, pArg2162Trp) were candidate variants. CONCLUSIONS AND RELEVANCE This study revealed that the conventional PKD1 variant was prevalent in Scottish Fold, Persian and Exotic Shorthair breeds in Japan, and variants in exon 15 of PKD1, in addition to the conventional variant in exon 29, would be key factors in the pathogenesis of ADPKD in cats.
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Affiliation(s)
- Fumitaka Shitamori
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Ayaka Nonogaki
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Tomoki Motegi
- Veterinary Medical Center, The University of Tokyo, Tokyo, Japan
| | | | - Mika Sakamoto
- Department of Informatics, National Institute of Genetics, Research Organization of Information and Systems, Shizuoka, Japan
| | - Yasuhiro Tanizawa
- Department of Informatics, National Institute of Genetics, Research Organization of Information and Systems, Shizuoka, Japan
| | - Yasukazu Nakamura
- Department of Informatics, National Institute of Genetics, Research Organization of Information and Systems, Shizuoka, Japan
| | - Tomohiro Yonezawa
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yasuyuki Momoi
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Shingo Maeda
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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Yonezawa T, Marasigan CNBB, Matsumiya Y, Maeda S, Motegi T, Momoi Y. Effects of high-dose docosahexaenoic acid supplementation as an add-on therapy for canine idiopathic epilepsy: A pilot study. Open Vet J 2023; 13:942-947. [PMID: 37614731 PMCID: PMC10443822 DOI: 10.5455/ovj.2023.v13.i7.14] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 06/19/2023] [Indexed: 08/25/2023] Open
Abstract
Background The anti-epileptic effects of docosahexaenoic acid (DHA) in dogs and humans remain controversial. The dosage and efficacy of DHA were various in the previous reports. Aim The effects of high-dose DHA supplementation as add-on therapy for idiopathic epilepsy in dogs were evaluated. Methods An open-label clinical trial was designed in this pilot study. Six dogs (median age: 6 years) with idiopathic epilepsy were included. All the patients were diagnosed with idiopathic epilepsy using magnetic MRI and cerebrospinal fluid examination (median: 2.0 years before the trial). They had 5-45 seizures and/or auras (median: 9.0) in the month before starting DHA supplementation. DHA was adjunctively administered at doses of 69-166 mg/kg/day without changing other prescriptions. Results Four of the six patients completed the 6-month observation period. All the patients showed a decrease in seizure frequency of 50% or more within 2-3 months after the start of the administration, and three patients decreased to a frequency of 0-1 per month after 5-6 months. No clear adverse events were observed in the general condition or blood test results in any patients. Conclusion Although the sample size was small and the study was not a randomized controlled trial, the data suggest that add-on supplementation of DHA could be useful in reducing the frequency of seizures in canine idiopathic epilepsy.
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Affiliation(s)
- Tomohiro Yonezawa
- Laboratory of Veterinary Clinical Pathobiology, Department of Veterinary Medical Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Cris Niño Bon B. Marasigan
- Laboratory of Veterinary Clinical Pathobiology, Department of Veterinary Medical Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yuki Matsumiya
- Laboratory of Veterinary Clinical Pathobiology, Department of Veterinary Medical Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Shingo Maeda
- Laboratory of Veterinary Clinical Pathobiology, Department of Veterinary Medical Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Tomoki Motegi
- Laboratory of Veterinary Clinical Pathobiology, Department of Veterinary Medical Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yasuyuki Momoi
- Laboratory of Veterinary Clinical Pathobiology, Department of Veterinary Medical Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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10
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Hirabayashi M, Chambers JK, Tani A, Tomiyasu H, Motegi T, Rimpo K, Nakayama H, Uchida K. mRNA sequencing analysis and growth inhibitory effects of palbociclib on cell lines from canine histiocytic proliferative disorders. Vet Comp Oncol 2022; 20:587-601. [PMID: 35278028 DOI: 10.1111/vco.12812] [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] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/09/2022] [Accepted: 03/09/2022] [Indexed: 11/27/2022]
Abstract
Canine histiocytic proliferative disorders include aggressive and fatal diseases, such as histiocytic sarcoma (HS) and histiocytosis (SyH). The molecular mechanisms underlying cell proliferation need to be elucidated for the development of effective treatments. In the present study, mRNA expression levels were comprehensively analysed in cell lines derived from localized HS, disseminated HS, SyH and Langerhans cell histiocytosis (LCH) in dogs. Based on the results obtained, the growth inhibitory effects of palbociclib, a CDK4/6 inhibitor, were verified with the cell lines in vitro and in xenograft mouse model. Hierarchical clustering and principal component analysis plots of mRNA expression profiles divided the cell lines into three groups: a localized HS group, disseminated HS/SyH group, and LCH. The results of an ingenuity pathway analysis suggested that the MAPK signalling pathway was activated in the localized HS and LCH cell lines, and the PI3K signalling pathway in the disseminated and localized HS cell lines. In all cell lines, the expression of the tumour suppressor genes TP53, CDKN2A and CDKN1A was down-regulated, whereas that of Rb was preserved. In vitro assessments revealed the growth inhibitory effects of palbociclib in all cell lines examined. In a xenograft mouse model using a cell line from disseminated HS, palbociclib exerted significant growth inhibitory effects. These results suggest the potential of palbociclib as a therapeutic drug candidate for the treatment of malignant histiocytic proliferative disorders of the dog.
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Affiliation(s)
- Miyuki Hirabayashi
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
- Saitama Animal Medical Center, Saitama, Japan
| | - James K Chambers
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Akiyoshi Tani
- Laboratory of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Hirotaka Tomiyasu
- Laboratory of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Tomoki Motegi
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kenji Rimpo
- Saitama Animal Medical Center, Saitama, Japan
| | - Hiroyuki Nakayama
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kazuyuki Uchida
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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11
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Maeda S, Motegi T, Iio A, Kaji K, Goto-Koshino Y, Eto S, Ikeda N, Nakagawa T, Nishimura R, Yonezawa T, Momoi Y. Anti-CCR4 treatment depletes regulatory T cells and leads to clinical activity in a canine model of advanced prostate cancer. J Immunother Cancer 2022; 10:jitc-2021-003731. [PMID: 35131860 PMCID: PMC8804701 DOI: 10.1136/jitc-2021-003731] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/30/2021] [Indexed: 12/15/2022] Open
Abstract
Background Targeting regulatory T cell (Treg) infiltration is an emerging strategy for cancer immunotherapy. However, its efficacy in advanced prostate cancer remains unclear. Here, we showed the therapeutic efficacy of anti-Treg treatment in a canine model of advanced prostate cancer. Methods We used dogs with naturally occurring prostate cancer to study the molecular mechanism underlying Treg infiltration and the effect of anti-Treg treatment. Tumor-infiltrating Tregs was evaluated by immunohistochemistry, and the association with prognosis was examined in dogs with spontaneous prostate cancer. The molecular mechanism of Treg infiltration was explored by RNA sequencing and protein analyses. A non-randomized canine clinical trial was conducted to define the therapeutic potential of anti-Treg treatment for advanced prostate cancer. Human prostate cancer datasets were analyzed to compare gene expression in dogs and humans. Results Tumor-infiltrating Tregs were associated with poor prognosis in dogs bearing spontaneous prostate cancer. RNA sequencing and protein analyses showed a possible link between the CCL17–CCR4 pathway and the increase of tumor-infiltrating Tregs. Dogs with advanced prostate cancer responded to mogamulizumab, a monoclonal antibody targeting CCR4, with decreased circulating Tregs, improved survival, and low incidence of clinically relevant adverse events. Urinary CCL17 concentration and BRAFV595E mutation were independently predictive of the response to mogamulizumab. Analysis of a transcriptomic dataset of human prostate cancer showed that the CCL17–CCR4 axis correlated with Foxp3. In silico survival analyses revealed that high expression of CCL17 was associated with poor prognosis. Immunohistochemistry confirmed that tumor-infiltrating Tregs expressed CCR4 in human patients with prostate cancer. Conclusions Anti-Treg treatment, through CCR4 blockade, may be a promising therapeutic approach for advanced prostate cancer in dogs and some population of human patients.
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Affiliation(s)
- Shingo Maeda
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Tomoki Motegi
- Veterinary Medical Center, The University of Tokyo, Tokyo, Japan
| | - Aki Iio
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kenjiro Kaji
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yuko Goto-Koshino
- Molecular Diagnostic Laboratory, Veterinary Medical Center, The University of Tokyo, Tokyo, Japan
| | - Shotaro Eto
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Namiko Ikeda
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Takayuki Nakagawa
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Ryohei Nishimura
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Tomohiro Yonezawa
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yasuyuki Momoi
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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12
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Sakai K, Motegi T, Chambers JK, Uchida K, Nishida H, Shimamura S, Tani H, Shimada T, Furuya M. Dystrophin-deficient muscular dystrophy in a Toy Poodle with a single base pair insertion in exon 45 of the Duchenne muscular dystrophy gene. J Vet Med Sci 2022; 84:502-506. [PMID: 35135937 PMCID: PMC9096033 DOI: 10.1292/jvms.21-0504] [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] [Indexed: 11/22/2022] Open
Abstract
A 10-month-old, intact male Toy Poodle was referred for a postural abnormality. Blood biochemical tests revealed a marked increase in plasma creatine phosphokinase (CPK) concentration. The isoenzyme test showed that 99% of serum CPK consisted of CPK-MM. Histopathological evaluation of muscle biopsy samples confirmed scattered degeneration and necrosis of myofibers. Immunohistochemistry for dystrophin showed an absence of staining in muscle cells. Based on these findings, the dog was diagnosed with dystrophin-deficient muscular dystrophy. Whole genome sequencing using genomic DNA extracted from blood revealed a single base pair insertion in exon 45 of the Duchenne muscular dystrophy (DMD) gene. This is the first report on muscular dystrophy in Toy Poodles and identified a novel mutation in the DMD gene.
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Affiliation(s)
- Kosei Sakai
- Veterinary Medical Center, Graduate School of Life and Environmental Sciences, Osaka Prefecture University
| | - Tomoki Motegi
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo
| | - James Ken Chambers
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo
| | - Kazuyuki Uchida
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo
| | - Hidetaka Nishida
- Laboratory of Veterinary Surgery, Graduate School of Life and Environmental Sciences, Osaka Prefecture University
| | - Shunsuke Shimamura
- Veterinary Medical Center, Graduate School of Life and Environmental Sciences, Osaka Prefecture University
| | - Hiroyuki Tani
- Laboratory of Veterinary Internal Medicine, Graduate School of Life and Environmental Sciences, Osaka Prefecture University
| | - Terumasa Shimada
- Veterinary Medical Center, Graduate School of Life and Environmental Sciences, Osaka Prefecture University
| | - Masaru Furuya
- Laboratory of Veterinary Internal Medicine, Graduate School of Life and Environmental Sciences, Osaka Prefecture University
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13
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Shinomiya Y, Takagaki S, Kawakami Y, Motegi T. Contrasting treatment responses by Burkholderia cepacia complex-related deep pyoderma: a series of two cases. Open Vet J 2022; 12:308-311. [PMID: 35821768 PMCID: PMC9270938 DOI: 10.5455/ovj.2022.v12.i3.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 04/19/2022] [Indexed: 11/16/2022] Open
Abstract
Background: The Burkholderia cepacia complex (Bcc) is an opportunistic pathogen in humans and animals. Deep pyoderma caused by these bacteria in dogs has been previously reported. This case series aims to describe contrasting treatment responses in Bcc-related deep pyoderma in two dogs, a male and a female. Case Description: Both patients had a history of immune-mediated polyarthritis (IMPA) managed with oral ciclosporin and prednisolone. Their skin lesions were multifocal, irregular, erythematous to hemorrhagic, alopecic papules, plaques, and nodules, with extensive crusting, draining tracts, and ulceration. Cytological findings revealed a marked inflammatory response consisting of non-degenerative and degenerative neutrophils and macrophages, with moderate to abundant intracellular and extracellular Bcc. Ciclosporin and prednisolone were stopped in case 2 after diagnosis. However, it was challenging to stop the regimen in case 1 because of the recurrence of IMPA and the onset of iatrogenic hypoadrenocorticism. Case 1 did not achieve remission for approximately 66 weeks even with seven protocols because of multiple relapses, whereas it took only 3 weeks to achieve remission in case 2 while using one drug. Conclusion: For deep pyoderma with extensive lesions in immunosuppressed patients, one should consider infection with Bcc. Therefore, immunosuppressants should promptly be reduced in such patients, and then, intensive antimicrobial therapy may achieve remission.
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Affiliation(s)
| | | | | | - Tomoki Motegi
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
- Corresponding Author: Tomoki Motegi. Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan.
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14
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Nishi R, Motegi T, Maeda S, Tamahara S, Momoi Y, Matsuki N, Yonezawa T. Clinical assessment of testosterone analogues for urethral sphincter mechanism incompetence in ten spayed female dogs. J Vet Med Sci 2021; 83:274-279. [PMID: 33441521 PMCID: PMC7972894 DOI: 10.1292/jvms.20-0515] [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] [Indexed: 12/01/2022] Open
Abstract
Urethral sphincter mechanism incompetence (USMI) is a common cause of urinary
incontinence in dogs. Although estrogen is often prescribed for the medical therapy of
USMI for spayed female dogs, they are known to have limited effectiveness and potential
adverse effects. In castrated male dogs with USMI, testosterone reagents have been
attempted besides estrogen. In this study, the effect of testosterone drugs, mainly
methyltestosterone, on spayed female dogs with USMI was retrospectively evaluated. Ten
spayed female dogs with USMI were included. Diagnosis of USMI was based on the results of
the dogs’ medical history, clinical signs, and no abnormalities in physical examinations,
urinalysis, ultrasonography, X-ray imaging, and neurological examinations.
Methyltestosterone was administered at doses of 0.32–1.27 mg/kg BW p.o. semel in
die (sid.) to twice a week. Nine of the ten dogs had good or
excellent responses 2 to 4 weeks after the start of treatment. The minimum effective dose
was 0.32 mg/kg/day. Although no severe adverse symptoms occurred in any dog, a mild
increase in alanine aminotransferase was temporally observed at doses of 1.0 and 1.1
mg/kg/day in the two dogs. After dose reduction or withdrawal, two of eight dogs had
recurrence of urinary incontinence. Resumption of testosterone treatment clearly improved
the symptoms in the two dogs. These results indicate that testosterone reagents might be
an option for treating USMI in spayed female dogs as well.
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Affiliation(s)
- Reo Nishi
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Tomoki Motegi
- Veterinary Medical Center, Department of Veterinary Medical Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Shingo Maeda
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Satoshi Tamahara
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Yasuyuki Momoi
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Naoaki Matsuki
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Tomohiro Yonezawa
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
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15
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Takahashi J, Kanda S, Imanishi I, Hisano T, Fukamachi T, Taguchi N, Momiyama S, Nishiyama S, Motegi T, Iyori K. Efficacy and safety of 0.0584% hydrocortisone aceponate topical spray and systemic oclacitinib combination therapy in dogs with atopic dermatitis: a randomized, double-blinded, placebo-controlled trial. Vet Dermatol 2020; 32:119-e25. [PMID: 33185330 DOI: 10.1111/vde.12909] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/17/2020] [Indexed: 12/25/2022]
Abstract
BACKGROUND Oclacitinib is an effective systemic therapy for dogs with atopic dermatitis (AD). Few studies have evaluated concurrent topical treatment with oclacitinib in dogs. OBJECTIVES To evaluate the efficacy and safety of combination therapy of oclacitinib and 0.0584% hydrocortisone aceponate (HCA) spray in dogs with AD. ANIMALS Eighteen dogs with AD. METHODS AND MATERIALS This study was a randomized, double-blinded, placebo-controlled trial. All dogs were treated with oclacitinib (0.4-0.6 mg/kg twice daily for 14 days, then once daily for 14 days) and randomized to receive either HCA spray or placebo spray, applied once daily for seven days then every other day through to Day (D)28. Clinical assessments included the Canine Atopic Dermatitis Extent and Severity Index, 4th iteration (CADESI-4) and the pruritus Visual Analog Scale (PVAS) every seven days, and blood and urine tests every 14 days. RESULTS The mean CADESI-4 and PVAS scores were significantly reduced on D7 and D14 compared to D0 in both groups (P < 0.05). From D14 to D21, CADESI-4 and PVAS scores were significantly increased in the placebo group (P < 0.005), and not in the HCA-treated group. The mean reduction from baseline of the HCA-treated group was significantly higher than that of the placebo group for the PVAS and CADESI-4 on D21 (59.9% versus 27.6%, P = 0.0216) and D28 (56.0% versus 30.5%, P = 0.0109), respectively. One dog in the HCA-treated group was withdrawn as a consequence of developing diarrhoea. CONCLUSION Topical application of 0.0584% HCA spray may be useful for preventing exacerbation of pruritus and clinical lesions when tapering oclacitinib therapy in dogs with AD.
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Affiliation(s)
- Junko Takahashi
- Noah Animal Hospital, 3-4-15 Joto, Kofu, Yamanashi, 400-0861, Japan
| | - Satoko Kanda
- Vet Derm Tokyo, Dermatological and Laboratory Service for Animals, 910 Shoubusawa, Fujisawa-shi, Kanagawa, 252-0823, Japan
| | - Ichiro Imanishi
- Department of Microbiology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa, 252-0374, Japan
| | - Tadashi Hisano
- Smile Animal Hospital, 3-22-21 Maebaranishi, Funabashi, Chiba, 274-0825, Japan
| | - Teruyasu Fukamachi
- Smile Animal Hospital, 3-22-21 Maebaranishi, Funabashi, Chiba, 274-0825, Japan
| | - Norihito Taguchi
- Mori Animal Hospital, 7-5-34 Gokou, Matsudo, Chiba, 270-2213, Japan
| | - Shoko Momiyama
- Nunokawa Animal Hospital, 273 Shimokurata-cho, Yokohama, Kanagawa, 244-0815, Japan
| | - Satoshi Nishiyama
- Nishiyama Animal Hospital, 1-10-1 Miyazono, Nagareyama, Chiba, 270-0155, Japan
| | - Tomoki Motegi
- Veterinary Medical Center, Graduate School of Agriculture and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Keita Iyori
- Vet Derm Tokyo, Dermatological and Laboratory Service for Animals, 910 Shoubusawa, Fujisawa-shi, Kanagawa, 252-0823, Japan
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16
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Iio A, Maeda S, Yonezawa T, Momoi Y, Motegi T. Isolated growth hormone deficiency in a Chihuahua with a GH1 mutation. J Vet Diagn Invest 2020; 32:733-736. [PMID: 32646299 DOI: 10.1177/1040638720938671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A 6-mo-old female Chihuahua was presented with recurrent episodes of hypoglycemia and collapse. Physical examination revealed proportionate dwarfism, retained puppy hair coat, retained deciduous teeth, and open fontanelles. Routine blood tests revealed hypoglycemia, thrombocytosis, hypoproteinemia, and elevated alkaline phosphatase activity. The urinalysis, radiographs, and ultrasonographs were unremarkable. Endocrine testing revealed that insulin-like growth factor 1 was below the detection limit; concentrations of total thyroxine, baseline cortisol, and cortisol stimulated by tetracosactide acetate were within their reference intervals. The pituitary gland showed no organic abnormalities on magnetic resonance imaging. For definitive diagnosis, we conducted the stimulation test for growth hormone (GH) release and diagnosed isolated GH deficiency. Genetic investigation revealed that the present case had 4 point mutations in intronic regions and a 6-bp deletion in exon 5 of GH1. The bioinformatics tool PROVEAN algorithm predicted that the deletion in exon 5 could be deleterious to the function of GH1.
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Affiliation(s)
- Aki Iio
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Shingo Maeda
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Tomohiro Yonezawa
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Yasuyuki Momoi
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Tomoki Motegi
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
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17
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Motegi T, Kochi Y, Matsuda K, Kubo M, Yamamoto K, Momozawa Y. Identification of rare coding variants in TYK2 protective for rheumatoid arthritis in the Japanese population and their effects on cytokine signalling. Ann Rheum Dis 2019; 78:1062-1069. [PMID: 31118190 DOI: 10.1136/annrheumdis-2019-215062] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 03/19/2019] [Accepted: 04/18/2019] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Although genome-wide association studies (GWAS) have identified approximately 100 loci for rheumatoid arthritis (RA), the disease mechanisms are not completely understood. We evaluated the pathogenesis of RA by focusing on rare coding variants. METHODS The coding regions of 98 candidate genes identified by GWAS were sequenced in 2294 patients with RA and 4461 controls in Japan. An association analysis was performed using cases and controls for variants, genes and domains of TYK2. Cytokine responses for two associated variants (R231W, rs201917359; and R703W, rs55882956) in TYK2 as well as a previously reported risk variant (P1004A, rs34536443) for multiple autoimmune diseases were evaluated by reporter assays. RESULTS A variant in TYK2 (R703W) showed a suggestive association (p=5.47×10-8, OR=0.48). We observed more accumulation of rare coding variants in controls in TYK2 (p=3.94×10-12, OR=0.56). The four-point-one, ezrin, radixin, moesin (FERM; 2.14×10-3, OR=0.66) and pseudokinase domains (1.63×10-8, OR=0.52) of TYK2 also showed enrichment of variants in controls. R231W in FERM domain especially reduced interleukin (IL)-6 and interferon (IFN)-γ signalling, whereas P1104A in kinase domain reduced IL-12, IL-23 and IFN-α signalling. R703W in pseudokinase domain reduced cytokine signals similarly to P1104A, but the effects were weaker than those of P1104A. CONCLUSIONS The FERM and pseudokinase domains in TYK2 were associated with the risk of RA in the Japanese population. Variants in TYK2 had different effects on cytokine signalling, suggesting that the regulation of selective cytokine signalling is a target for RA treatment.
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Affiliation(s)
- Tomoki Motegi
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan.,Laboratory for Genotyping Development, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Yuta Kochi
- Laboratory for Autoimmune Diseases, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Koichi Matsuda
- Laboratory of Clinical Genome Sequencing, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Michiaki Kubo
- RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Kazuhiko Yamamoto
- Laboratory for Autoimmune Diseases, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Yukihide Momozawa
- Laboratory for Genotyping Development, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
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18
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Motegi T, Tomiyasu H, Goto-Koshino Y, Takahashi M, Hiyoshi-Kanemoto S, Fujino Y, Ohno K, Tsuimoto H. Prognostic value of CD44 variant isoform expression in dogs with multicentric high-grade B-cell lymphoma. Am J Vet Res 2018; 79:961-969. [PMID: 30153061 DOI: 10.2460/ajvr.79.9.961] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine the prognostic value of CD44 variant isoform expression in dogs with multicentric high-grade B-cell lymphoma (BCL). ANIMALS 45 dogs with multicentric BCL and 10 healthy control Beagles. PROCEDURES The medical record database of a veterinary teaching hospital was searched to identify dogs with BCL that were treated between November 2005 and April 2015. Information regarding overall response to chemotherapy, progression-free survival (PFS) time, and overall survival time was extracted from each record. Archived lymph node aspirate specimens from dogs with BCL and lymph node aspirate specimens from the 10 control dogs underwent real-time PCR analysis to determine mRNA expression of CD44 variant isoforms of exons 3, 6, and 7 and the CD44 whole isoform. For each isoform, mRNA expression was compared between dogs with BCL and control dogs. The mean relative expression of each isoform was used to classify dogs with BCL into either a high- or low-expression group, and overall response rate, PFS time, and overall survival time (ie, indices of prognosis) were compared between the 2 groups. RESULTS For all isoforms evaluated, mean relative mRNA expression for dogs with BCL was numerically lower than that for control dogs. Dogs with BCL and high CD44 isoform expression had a lower overall response rate, median PFS time, and median overall survival time, compared with dogs with BCL and low CD44 isoform expression. CONCLUSIONS AND CLINICAL RELEVANCE Results indicated that, for dogs with BCL, high expression of exons 3, 6, and 7 was associated with a poor prognosis.
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19
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Suenaga M, Tomiyasu H, Watanabe M, Ogawa K, Motegi T, Goto-Koshino Y, Ohno K, Sugano S, Skorupski KA, Tsujimoto H. Comprehensive analysis of gene expression profiles reveals novel candidates of chemotherapy resistant factors in canine lymphoma. Vet J 2017; 228:18-21. [DOI: 10.1016/j.tvjl.2017.10.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 10/02/2017] [Accepted: 10/04/2017] [Indexed: 01/03/2023]
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20
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Okamura Y, Heishima K, Motegi T, Sasaki J, Goryo M, Nishida H, Tsuchiya H, Katayama M, Uzuka Y. Mandibular Reconstruction by Using a Liquid Nitrogen-Treated Autograft in a Dog with an Oral Tumor. J Am Anim Hosp Assoc 2017; 53:167-171. [PMID: 28291396 DOI: 10.5326/jaaha-ms-6339] [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: 11/11/2022]
Abstract
A 10 yr old intact female German shepherd dog presented with a large peripheral odontogenic fibroma and malignant melanoma on her lower jaw. The tumor was resected with a unilateral subtotal rostral hemimandibulectomy. After the mandible was removed, it was devitalized intraoperatively by freezing it in liquid nitrogen. It was subsequently reimplanted. New bone tissue formed in the gap between the frozen bone and the host bone. The regenerated bone contained osteocytes, osteoblasts, and blood vessels. The cosmetic appearance of the dog was preserved. The dog had normal mastication. The malignant melanoma recurred rostral of the left canine tooth at 159 days after the reconstruction surgery. A subtotal hemimandibulectomy was consequently performed. This is the first reported case of mandibular reconstruction using a liquid nitrogen-treated autograft in a dog with oral tumors.
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Affiliation(s)
- Yasuhiko Okamura
- From the Cooperative Department of Veterinary Medicine, Faculty of agriculture, Iwate University, Morioka, Japan (Y.O., J.S., M.G., M.K., Y.U.); the United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan (K.H.); Department of Veterinary Medicine, Faculty of Agriculture, University of Tokyo, Tokyo, Japan (T.M.); and the Department of Orthopaedic Surgery and Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan (H.N., H.T.)
| | - Kazuki Heishima
- From the Cooperative Department of Veterinary Medicine, Faculty of agriculture, Iwate University, Morioka, Japan (Y.O., J.S., M.G., M.K., Y.U.); the United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan (K.H.); Department of Veterinary Medicine, Faculty of Agriculture, University of Tokyo, Tokyo, Japan (T.M.); and the Department of Orthopaedic Surgery and Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan (H.N., H.T.)
| | - Tomoki Motegi
- From the Cooperative Department of Veterinary Medicine, Faculty of agriculture, Iwate University, Morioka, Japan (Y.O., J.S., M.G., M.K., Y.U.); the United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan (K.H.); Department of Veterinary Medicine, Faculty of Agriculture, University of Tokyo, Tokyo, Japan (T.M.); and the Department of Orthopaedic Surgery and Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan (H.N., H.T.)
| | - Jun Sasaki
- From the Cooperative Department of Veterinary Medicine, Faculty of agriculture, Iwate University, Morioka, Japan (Y.O., J.S., M.G., M.K., Y.U.); the United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan (K.H.); Department of Veterinary Medicine, Faculty of Agriculture, University of Tokyo, Tokyo, Japan (T.M.); and the Department of Orthopaedic Surgery and Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan (H.N., H.T.)
| | - Masanobu Goryo
- From the Cooperative Department of Veterinary Medicine, Faculty of agriculture, Iwate University, Morioka, Japan (Y.O., J.S., M.G., M.K., Y.U.); the United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan (K.H.); Department of Veterinary Medicine, Faculty of Agriculture, University of Tokyo, Tokyo, Japan (T.M.); and the Department of Orthopaedic Surgery and Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan (H.N., H.T.)
| | - Hideji Nishida
- From the Cooperative Department of Veterinary Medicine, Faculty of agriculture, Iwate University, Morioka, Japan (Y.O., J.S., M.G., M.K., Y.U.); the United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan (K.H.); Department of Veterinary Medicine, Faculty of Agriculture, University of Tokyo, Tokyo, Japan (T.M.); and the Department of Orthopaedic Surgery and Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan (H.N., H.T.)
| | - Hiroyuki Tsuchiya
- From the Cooperative Department of Veterinary Medicine, Faculty of agriculture, Iwate University, Morioka, Japan (Y.O., J.S., M.G., M.K., Y.U.); the United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan (K.H.); Department of Veterinary Medicine, Faculty of Agriculture, University of Tokyo, Tokyo, Japan (T.M.); and the Department of Orthopaedic Surgery and Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan (H.N., H.T.)
| | - Masaaki Katayama
- From the Cooperative Department of Veterinary Medicine, Faculty of agriculture, Iwate University, Morioka, Japan (Y.O., J.S., M.G., M.K., Y.U.); the United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan (K.H.); Department of Veterinary Medicine, Faculty of Agriculture, University of Tokyo, Tokyo, Japan (T.M.); and the Department of Orthopaedic Surgery and Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan (H.N., H.T.)
| | - Yuji Uzuka
- From the Cooperative Department of Veterinary Medicine, Faculty of agriculture, Iwate University, Morioka, Japan (Y.O., J.S., M.G., M.K., Y.U.); the United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan (K.H.); Department of Veterinary Medicine, Faculty of Agriculture, University of Tokyo, Tokyo, Japan (T.M.); and the Department of Orthopaedic Surgery and Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan (H.N., H.T.)
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Katayama M, Tsuchiaka S, Motegi T, Miyazaki M, Yamashita T, Shimamura S, Okamura Y, Uzuka Y. High-molecular-weight polyethylene glycol enhances hypothermic storage of feline kidney cells. J Vet Med Sci 2014; 76:923-6. [PMID: 24599064 PMCID: PMC4108781 DOI: 10.1292/jvms.13-0565] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Phosphate-buffered sucrose
(PBSc) solution is effective for short-term hypothermic preservation of tissue during
feline kidney transplantation. A high-molecular-weight polyethylene glycol (35,000 Da,
PEG35) reportedly enhanced the protective effects against cold-induced tubular injuries in
animal kidney transplantation models. We investigated the ability of PBSc solution
containing PEG35 to preserve cultured feline kidney cells using in vitro
WST-8 cell proliferation assays. PEG35 significantly improved cell viability during 24 hr
of cold preservation. PBSc containing 20 g/l PEG35 achieved an effect
almost equal to that of University of Wisconsin (UW) solution, the gold standard
preservation solution used in human clinical kidney transplantation, for up to 24 hr of
preservation. Our results suggest that PBSc containing PEG35 provides an excellent medium
for graft cold storage during feline kidney transplantation.
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Affiliation(s)
- Masaaki Katayama
- Division of Small Animal Surgery, Co-Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, Iwate 020-8550, Japan
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22
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Motegi T, Katayama M, Uzuka Y, Okamura Y. Evaluation of anticancer effects and enhanced doxorubicin cytotoxicity of xanthine derivatives using canine hemangiosarcoma cell lines. Res Vet Sci 2013; 95:600-5. [DOI: 10.1016/j.rvsc.2013.06.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Revised: 04/12/2013] [Accepted: 06/13/2013] [Indexed: 11/25/2022]
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Araki T, Katsura H, Motegi T, Yamada K, Uehara T, Gotoh R, Kida K, Esaki Y. [Two elderly patients with sarcoidosis and Sjögren's syndrome]. Nihon Ronen Igakkai Zasshi 2001; 38:229-34. [PMID: 11305039 DOI: 10.3143/geriatrics.38.229] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Two elderly patients with sarcoidosis complicated with Sjögren's syndrome are described. Case 1: A 70-year-old woman was admitted due to dry eyes. Histological examination of a minor salivary gland specimen revealed lymphocytic infiltration, which was compatible with Sjögren's syndrome. Because uveitis was demonstrated, transbronchial lung biopsy (TBLB) was performed, to confirm a diagnosis of lung sarcoidosis. Histological examination of TBLB showed non-caseating granulomas compatible with sarcoidosis. Case 2: A 70-year-old woman was admitted due to dyspnea on exercise and blurred vision. Two years previously, Sjögren's syndrome was diagnosed because of a positive Shirmer test and positive SS-A antibody. Result of ophthalmic examination were compatible with uveitis. Histological examination of TBLB showed non-caseating granulomas compatible with sarcoidosis. Certain similarities between sarcoidosis and Sjögren's syndrome in terms of immunological aspects have attracted attention. In the present manuscript, a possible relationship between the two diseases as well as the characteristics of elderly sarcoidosis are discussed.
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Affiliation(s)
- T Araki
- Pulmonary Division, Tokyo Metropolitan Geriatric Hospital
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Abstract
Mouse astroglial cells, which were cultured on an electrode, were found responsive to an electric stimulation of sine wave potential in enhancing hsp70 mRNA resulting from an activation of hsp70 gene expression. On the basis of this finding, electrically responsive cells were established by transfecting mouse 3T3-L1 cells with a constructed plasmid encoding hsp70 promoter and the firefly luciferase gene. A stable cell line has been established through selection of heat-stimulated luciferase expression. A 1-h electric stimulation of the cells resulted in activation of luciferase expression, which was confirmed to produce an increase in light emission. The sequential pattern of the electrically stimulated expression of luciferase was found different from that of the heat stimulation. Furthermore, the promoter was activated depending on the potential and duration of the stimulation applied. Consequently, the electric stimulation has proven effective on activating hspP70 promoter. This cell line is feasible in expressing the gene of interest by electrical stimulation, which lead us to construct environment responsive cells in general.
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Affiliation(s)
- Y Yanagida
- Department of Biological Information, Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Nagatsuta, Yokohama, Japan
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25
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Katsura H, Hara T, Motegi T, Yamada K, Jinno S, Arai T, Kida K. [Interstitial pneumonitis associated with Sweet's syndrome in the elderly]. Nihon Ronen Igakkai Zasshi 1999; 36:887-92. [PMID: 10689901 DOI: 10.3143/geriatrics.36.887] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Sweet's syndrome occurring during the course of interstitial pneumonitis in a 70-year-old woman was encountered. She was admitted because of dyspnea on exercise, dry cough and interstitial shadow on chest x-ray. Lung biopsy, together with other findings confirmed interstitial pneumonitis. Five days after admission, genital ulcer and aphtha on the oral mucosa were detected and exudative erythema appeared on her right shoulder, chest and back. Histological examination of the skin lesions demonstrated numerous nutrophilic infiltration in the upper dermis, indicating Sweet's syndrome. The skin eruption rapidly disappeared on treatment with colchicine. Although six months after admission interstitial pneumonitis caused respiratory failure, treatment with prednisolone and cyclophosphamide was effective. Serological and immunological tests demonstrated hyper-gammaglobulinemia and positive reaction for anti SS-A antibody. Pathological examination of the lip revealed numerous lymphocyte infiltrates around the duct of the minor salivary gland, suggesting Sjögren's syndrome as the background disease of Sweet's syndrome and interstitial pneumonitis. This evidence indicating that even in elderly patients, skin lesions of Sweet's syndrome may reveal the background disease.
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Affiliation(s)
- H Katsura
- Pulmonary Division, Tokyo Metropolitan Geriatric Hospital
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26
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Motegi T, Kida K. [Clinical epidemiology of chronic obstructive pulmonary disease]. Nihon Rinsho 1999; 57:1950-3. [PMID: 10497388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) is more important as a cause of morbidity than as a cause of mortality but estimates of its frequency and distribution are inadequate and incomplete. According to annual report of World Health Organization, in 1998 there were estimated to be 52.2 millions deaths in the world, among them 2.9 millions were due to respiratory diseases and almost of them were COPD. Estimates of prevalence COPD vary depending on the diagnostic criteria used, the age and sex composition of the population, their exposure to cigarette smoke and possibly to other harmful environmental influences. In the present review, we discuss the problems arising in the data of morbidity and mortality of COPD in Japan.
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Affiliation(s)
- T Motegi
- Pulmonary Division, Tokyo Metropolitan Geriatric Hospital
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27
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Motegi T, Kida K. [A clinical study of serum IgE concentrations in elderly patients with bronchial asthma and chronic obstructive pulmonary disease]. Nihon Kokyuki Gakkai Zasshi 1999; 37:608-13. [PMID: 10496098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
We tested the hypothesis that serum IgE concentrations may be influenced by the severity of respiratory symptoms, impairment of pulmonary functions, and smoking history in elderly patients with bronchial asthma and/or chronic obstructive pulmonary disease (COPD). A total of 325 elderly outpatients aged over 65 years were enrolled in the study: 112 (22 men, 90 women) with bronchial asthma (BA), 135 (118 men, 17 women) with COPD, and 78 (56 men, 22 women) with both COPD and asthma (COPD/BA). The mean ages for the 3 groups were 74.3,76.0 and 76.6 years, respectively; the age differential was not significant. As a group, the male subjects displayed higher serum IgE concentrations than the female subjects. Also, ex-smokers and current smokers showed higher serum IgE concentrations than patients who had never smoked, and patients in the BA group had higher serum IgE concentrations than those in the COPD or COPD/BA groups. Although serum IgE concentrations were increased in BA patients with decreased FEV1.0 levels, the reverse was observed in the COPD patients. Peripheral blood eosinophil counts for men and women were higher in the BA group than in the COPD group. A positive correlation between serum IgE concentration and eosinophil count was observed in the BA group. Although bronchial asthma and COPD in the elderly have been considered to be pathologically similar, the findings of our study suggested they are probably different in terms of serum IgE concentration, pulmonary function, and smoking history.
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Affiliation(s)
- T Motegi
- Pulmonary Division, Tokyo Metropolitan Geriatric Hospital, Japan
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28
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Kimura S, Watanabe K, Yajiri Y, Motegi T, Masuya Y, Shibuki K, Uchiyama S, Homma T, Takahashi HE. Cerebrospinal fluid nitric oxide metabolites in painful diseases. Neuroreport 1999; 10:275-9. [PMID: 10203321 DOI: 10.1097/00001756-199902050-00013] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
To elucidate the involvement of NO in pain transmission in humans, we measured NO metabolites (nitrite/nitrate) in the CSF of patients with painful diseases using an NO analyzer based on the Griess method. The nitrite/nitrate levels in patients with degenerative lumbar disease (DLD), but not those with fracture or appendicitis, were significantly higher than those in an age-matched control group. The duration of pain in the DLD group was much longer than that in the fracture or appendicitis group. The nitrite/nitrate levels in the middle-aged and elderly DLD patients depended on the duration of pain. These data probably suggest that the duration of pain is critical for the elevation in nitrite/nitrate levels.
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Affiliation(s)
- S Kimura
- Department of Orthopedic Surgery, Niigata University School of Medicine, Niigata-shi, Japan
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29
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Nozaki K, Motegi T, Tsuji S. [An adult case of bacterial meningitis caused by penicillin-resistant Streptococcus pneumoniae with gene mutations of penicillin binding proteins]. Rinsho Shinkeigaku 1997; 37:693-6. [PMID: 9404146] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A 62-year-old Japanese male developed acute bacterial meningitis. Administration of ABPC, CDZM, INH, and RFP was started. The causative bacteria was identified as penicillin-resistant Streptococcus pneumoniae (PRSP) 3 days later. We changed ABPC to PAPM/BP and the bacterial meningitis improved dramatically. Measurement of minimum inhibitory concentration (MIC) of the bacterial strain from CSF and blood showed that it is susceptible to PAPM/BP and RFP. Mechanism of drug resistance is considered to be gene mutations of penicillin binding protein (PBP) that decreases drug affinity to PBP. Recently penicillin resistance of Streptococcus pneumoniae has been found to be associated with mutations of pbp-2b, 1a genes and the cefem resistance of that is with those of pbp-2x, and 1a genes. By PCR (polymerase chain reaction) analysis we identified the mutations of pbp-1a, 2x, and 2b genes of the isolated strain of Streptococcus pneumoniae. We emphasize the importance of detection of pbp gene mutations for the diagnosis of PRSP infections.
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Affiliation(s)
- K Nozaki
- Department of Neurology, Tsubame Rosai Hospital
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30
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Kanda Y, Akiyama H, Onozawa Y, Motegi T, Yamagata-Murayama S, Yamaguchi H. Aspergillus endocarditis in a leukemia patient diagnosed by a PCR assay. Kansenshogaku Zasshi 1997; 71:269-72. [PMID: 9128014 DOI: 10.11150/kansenshogakuzasshi1970.71.269] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A patient in a blastic phase of chronic myelocytic leukemia developed multiple arterial emboli that originated from mitral valve vegetation. The diagnosis of infective endocarditis was not confirmed because blood cultures, serological assays and other examinations detected no pathogens. He died of intracranial hemorrhage after thrombolytic manipulation for embolization of the abdominal aorta and an autopsy was performed. Polymerase chain reaction analysis and Southern blot analysis of tissues from the mitral valve revealed Aspergillus species as the cause of the endocarditis, although none of the tissue specimens were culture-positive. These molecular analyses will be useful in the diagnosis of various types of Aspergillus infections.
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Affiliation(s)
- Y Kanda
- Division of Hematology and Pathology, Tokyo Metropolitan Komagome Hospital, Japan
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31
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Nagasaka S, Kubota K, Motegi T, Hayashi E, Ohta M, Takahashi K, Takahashi T, Iwasaki Y, Koike M, Nishikawa T. A case of silent 21-hydroxylase deficiency with persistent adrenal insufficiency after removal of an adrenal incidentaloma. Clin Endocrinol (Oxf) 1996; 44:111-6. [PMID: 8706282 DOI: 10.1046/j.1365-2265.1996.631456.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A case of an adrenal incidentaloma in a 57-year-old man with silent 21-hydroxylase deficiency is reported. Abdominal computed tomography revealed a right adrenal tumour of 6cm in diameter. There was no evidence of adrenal hormone excess. However, after surgical removal of the adrenal tumour, the patient developed acute adrenal insufficiency. Adrenocortical function has remained low ever since surgery. Pathological examination of the tumour revealed a cortical adenoma. On the basis of increased plasma renin activity and serum 17 alpha-hydroxyprogesterone concentration and decreased 21-hydroxylase activity of the adenoma tissue, the patient was diagnosed as having systemic 21-hydroxylase deficiency. There are two possible mechanisms for the persistent adrenal insufficiency; first the residual left adrenal gland may have been originally hypo-functioning for some reason and, second, the left gland may have lost the ability to regenerate following prolonged suppression by the adenoma. In cases of adrenal incidentalomas with 21-hydroxylase deficiency, the indications for surgical removal should be carefully considered.
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Affiliation(s)
- S Nagasaka
- Department of Medicine, Tokyo Metropolitan Komagome Hospital, Japan
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Sekine T, Fukutani K, Motegi T, Hayakawa H, Tamura T, Nagafuchi S, Nakahori Y, Nakagome Y. DNA analysis of two patients with a non-fluorescent Y chromosome. Jpn J Hum Genet 1992; 37:157-62. [PMID: 1391971 DOI: 10.1007/bf01899739] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Results of DNA study on two patients of gonadal dysgenesis with a 45,X/46,X,Ynf (non-fluorescent Y chromosome) karyotype are described. In one patient who developed gonadoblastoma, all 12 loci on the non-fluorescent part of Yq were detected. Another patient did not have gonadoblastoma at 20 years, and only the proximal 6 loci out of 12 were detected.
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Affiliation(s)
- T Sekine
- Department of Pediatrics, Tokyo University Hospital, Japan
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Inoue Y, Motegi T, Yuasa T, Atsumi T, Miyatake T. [Acute autonomic and sensory neuropathy associated with galactorrhea-amenorrhea syndrome and intractable anorexia]. Rinsho Shinkeigaku 1989; 29:1265-71. [PMID: 2557996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Acute autonomic and sensory neuropathy (AASN), one subtype of acute pandysautonomia, in which dorsal root ganglia and autonomic ganglia are involved is uncommon. Little is so far known on central nervous system involvement in AASN. In the present paper we described a rare case of AASN associated with the central nervous system manifestations such as galactorrhea-amenorrhea syndrome and intractable anorexia. A 30-year-old woman rapidly developed burning pain and numbness in her arms and legs as well as orthostatic syncope. She had severe anorexia and no no menstruation from onset. On physical examination, she was emaciated. There was marked orthostatic hypotension with tachycardia. Skin was dry. Moderate galactorrhea was detected. Neurological examination showed prominent paresthesia and dullness of superficial sensation, predominantly to pinprick and thermal stimuli, segmentally over the neck, occipital scalp, and extremities. Deep sensation was intact. She had no weakness or ataxia. Deep tendon reflexes were almost normal. NCV and SEP were normal, while EEG was abnormal. Sural nerve biopsy demonstrated axonal degeneration with the loss of myelinated, predominantly in small-caliber fibers, and unmyelinated fibers. The levels of HVA and MHPG in CSF were decreased. The autonomic nervous function tests revealed postganglionic dysfunction. alpha-adrenergic system was predominantly impaired, while beta-adrenergic system was relatively preserved. The endocrinological studies demonstrated mild or moderate elevation of PRL basal value and hyper-response of PRL and LH for TRH and LH-RH loading test, which suggested disorder of the hypothalamo-hypophysial system. Cranial MRI showed moderate dilatation of the 3rd ventricle.(ABSTRACT TRUNCATED AT 250 WORDS)
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Inoue Y, Motegi T, Yuasa T, Miyatake T. [Subacute sensory neuropathy manifestated by tonic pupils associated with small cell carcinoma of the lung]. Rinsho Shinkeigaku 1989; 29:1302-5. [PMID: 2557997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Only a few cases of carcinomatous neuropathy with tonic pupils have been reported. In the present paper we described a 53-year-old woman with subacute sensory neuropathy who had presented with bilateral tonic pupils. She noticed numbness over the medial aspect of the left thigh in March, 1988, and then developed dysesthesia over the left forearm and hand, mild weakness of left upper and lower extremities and urinary disturbance. Neurological symptoms were subacutely progressive and she was bed-ridden in May. She was admitted to our hospital in June, 1988. On examination, she had body-weight loss of 6 kg during the last six months and general status was otherwise unremarkable. She had anisocoria; the left pupil was larger in daylight than the right, while smaller in dim light. The left pupil scarcely reacted to light, but promptly constricted to near vision. The right pupil constricted normally to light and near vision. An instillation of 0.0625% pilocarpine solution showed supersensitive response of both pupils. An instillation of 1.25% epinephrine solution demonstrated mild dilation of both pupils. Thus, it was conceivable that she had postganglionic ciliary nerve damage characteristic of tonic pupil as well as the lesion of sympathetic nerve innervating pupillary dilator. She had severe sensory ataxia and pseudoathetosis of the hands. Weakness was mild to moderate in extremities. Almost all deep tendon reflexes were absent. All modalities of sensation, particularly on deep sense, were severely involved with sea-level-type distribution below Th7, and over C2 to C3 regions on the left side.(ABSTRACT TRUNCATED AT 250 WORDS)
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35
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Motegi T. [Lymphocyte chromosome survey in 100 retinoblastoma patients]. Rinsho Byori 1989; Spec No 80:163-70. [PMID: 2630665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Abstract
A retrospective study on the role of pancreatic B-cell insulin secretory capacity in the development of proliferative diabetic retinopathy was performed in 160 diabetic patients with a duration of diabetes of more than 10 years (mean 19.5 +/- 7.9 years). Pancreatic B-cell insulin secretory capacity was assessed in terms of the quantity of C-peptide excreted into urine per day (24-h urinary C-peptide). When the patients were divided into three groups according to the quantity of 24-h urinary C-peptide (group I, C-peptide less than 30 micrograms, n = 49; group II, 30 micrograms less than or equal to C-peptide less than 80 micrograms, n = 76; and group III, C-peptide greater than or equal to 80 micrograms, n = 35), the prevalence of proliferative diabetic retinopathy was much higher in group I (26.5%) than in group II (5.3%) or group III (2.9%). The incidence of proliferative diabetic retinopathy during the follow-up period (mean 9.8 +/- 4.8 years) was also highest in group I (20.0%, 2.7%, and 2.9% in groups I, II, and III, respectively). Other factors which might affect the development of proliferative diabetic retinopathy, including duration of diabetes and past glycemic control, were comparable in these three groups. In contrast, a division of the patients according to glycemic control revealed a strong correlation between glycemic control and background diabetic retinopathy whereas no such correlation was apparent with proliferative diabetic retinopathy. These data are consistent with the view that low pancreatic B-cell insulin secretory capacity may be a risk factor for the development of proliferative diabetic retinopathy.
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Affiliation(s)
- K Suzuki
- Division of Endocrinology and Metabolism, Asahi Life Foundation, Tokyo, Japan
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37
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Motegi T, Nakamura K, Terakawa T, Oohira A, Minoda K, Kishi K, Yanagawa Y, Hayakawa H. Deletion of a single chromosome band 4q26 in a malformed girl: exclusion of Rieger syndrome associated gene(s) from the 4q26 segment. J Med Genet 1988; 25:628-30. [PMID: 3184142 PMCID: PMC1051542 DOI: 10.1136/jmg.25.9.628] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We report a malformed girl with a single chromosome band deletion of 4q26 in peripheral lymphocytes. This patient is the fourth case reported with an interstitial deletion involving 4q26 and has the smallest deletion of those reported. Deletion mapping indicates that psychomotor retardation, coloboma, prominent forehead, epicanthus, broad based nose, and broad, thin upper lip are associated with monosomy 4q26, and that gene(s) associated with Rieger syndrome can be excluded from the 4q26 segment.
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Affiliation(s)
- T Motegi
- Department of Pediatrics, Tokyo University Hospital Branch, Japan
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Motegi T, Ikeda K, Watanabe K, Yanagawa Y, Minoda K. Deletion (13)(q13q14.3) with retinoblastoma: confirmation and extension of a recognisable pattern of clinical features in retinoblastoma patients with 13q deletion. J Med Genet 1987; 24:696-7. [PMID: 3430545 PMCID: PMC1050349 DOI: 10.1136/jmg.24.11.696] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A girl with retinoblastoma and a del(13)(q13q14.3) is presented. This case helps to confirm and extend our previous observations regarding a recognisable facial pattern in retinoblastoma patients with 13q deletion involving 13q14 and its adjacent segments.
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Affiliation(s)
- T Motegi
- Tokyo University Hospital Branch, Japan
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Motegi T, Kawai K, Ikuta F. Mitotic figures of glial fibrillary acidic protein-positive cells in the periphery of human brain abscess. Clin Neuropathol 1987; 6:241-5. [PMID: 3427851] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
It has been unclear until now as to whether human astrocytes proliferate through mitosis or through amitosis, and little attention has been paid to the biological meaning of glial cell division. We examined an autopsy case of a 53-year-old man who died of brain abscesses and have found GFAP-positive mitotic cells in the zone between the abscess cavity and the reactive gliosis. The results suggest that human normal astrocytes which act in response to the brain abscess proliferate the process of mitosis, and become reactive to repair the lesions.
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Affiliation(s)
- T Motegi
- Department of Pathology, Niigata University, Japan
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Kadowaki H, Ouchi M, Kaga M, Motegi T, Yanagawa Y, Hayakawa H, Hashimoto G, Furuya K. Problems of trace elements and vitamins during long-term total parenteral nutrition: a case report of idiopathic intestinal pseudo-obstruction. JPEN J Parenter Enteral Nutr 1987; 11:322-5. [PMID: 3110452 DOI: 10.1177/0148607187011003322] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
An 8-year-old girl with chronic idiopathic intestinal pseudo-obstruction (CIIP), who is the first case of CIIP in Japan, has been receiving total parenteral nutrition (TPN) for more than 6 years. During this time, she experienced deficiencies of copper, zinc, vitamin A, vitamin B12, folic acid, and biotin, and an excess of vitamin A; she exhibited a series of signs and symptoms due to these deficiencies and vitamin A overdosage. Nevertheless, careful monitoring of serum levels of trace elements and vitamins and appropriate therapy have almost solved these problems. She has achieved normal physical and mental development and goes to school, while receiving home parenteral nutrition with an ambulatory infusion system.
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Morita M, Shoji K, Yamawaki T, Saito S, Motegi T, Ishida N. [A study on the cross-reactivities of streptococcal T antibodies in T3/T13/TB3264 group and T8/T25/TImp 19 group]. Kansenshogaku Zasshi 1987; 61:529-36. [PMID: 3117940 DOI: 10.11150/kansenshogakuzasshi1970.61.529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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42
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Morita M, Kon T, Shoji K, Motegi T, Takayama K, Yamawaki T, Saito S, Fujimiya Y, Shibata Y, Okamura T. [Group A streptococci isolated from patients with infectious diseases in the surveillance system of pathogenic microbes in Akita and their serotypes]. Kansenshogaku Zasshi 1987; 61:537-44. [PMID: 3117941 DOI: 10.11150/kansenshogakuzasshi1970.61.537] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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43
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Motegi T, Ohuchi M, Ohtaki C, Fujiwara K, Enomoto S, Hasegawa T, Kishi K, Hayakawa H. A craniosynostosis in a boy with a del(7)(p15.3p21.3): assignment by deletion mapping of the critical segment for craniosynostosis to the mid-portion of 7p21. Hum Genet 1985; 71:160-2. [PMID: 4043965 DOI: 10.1007/bf00283374] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A tiny interstitial deletion of 7p was found in a 5-month-old boy with a craniosynostosis and many anomalies. His karyotype was 46,XY,del(7)(p15.3p21.3). Here we present not only further evidence of an association between craniosynostosis and 7p monosomy, but also deletion mapping to indicate that the critical segment for craniosynostosis lies in the mid-portion of 7p21, that is at 7p21.2 or the proximal part of 7p21.3.
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Morita M, Yamawaki T, Motegi T, Shoji K, Saito S, Okamura T, Naganuma Y, Kudo M. [Isolation of group A streptococci from patients with various infectious diseases]. Kansenshogaku Zasshi 1985; 59:877-82. [PMID: 3935731 DOI: 10.11150/kansenshogakuzasshi1970.59.877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Motegi T, Watanabe K, Nakamura N, Hasegawa T, Yanagawa Y. De novo tandem duplication 9p (p12----p24) with normal GALT activity in red cells. J Med Genet 1985; 22:64-6. [PMID: 2984424 PMCID: PMC1049380 DOI: 10.1136/jmg.22.1.64] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A 3 month old boy with a tandem duplication 9p (p12----p24) is reported. Both clinical and dermatoglyphic features were consistent with those of the trisomy 9p syndrome. However, the red cell galactose-1-P uridyl transferase (GALT) activity was normal despite the presence of the duplicated segment 9p13.
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Morita M, Shoji K, Yamawaki T, Saito S, Motegi T, Yamane N, Ishida N. [A seroepidemiological study on S. pyogenes in Ecuador]. Kansenshogaku Zasshi 1984; 58:758-63. [PMID: 6439797 DOI: 10.11150/kansenshogakuzasshi1970.58.758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Motegi T, Minoda K. A decreasing tendency for cytogenetic abnormality in peripheral lymphocytes of retinoblastoma patients with 13q14 deletion mosaicism. Hum Genet 1984; 66:186-9. [PMID: 6714979 DOI: 10.1007/bf00286598] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A significant decrease in the proportion of 13q14-deleted cells over a 9-month period was observed in a boy with retinoblastoma and 13q14 deletion mosaicism. To evaluate whether this phenomenon is generally the case, the bloods of three retinoblastoma patients with 13q14 deletion mosaicism reported in 1981 and 1982 were reexamined. A significant decrease in the proportion of abnormal cells was observed in three of four patients including the present case, suggesting that a 13q14 deletion mosaicism might disappear with age in some individuals.
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Morita M, Kon T, Motegi T, Takayama K, Yamawaki T, Saito S, Shoji K, Fujimiya Y, Shibata Y, Shiratori T. [An epidemiological study on group A streptococci in two towns with high and low incidence rates of scarlet fever]. Kansenshogaku Zasshi 1983; 57:1067-74. [PMID: 6425428 DOI: 10.11150/kansenshogakuzasshi1970.57.1067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Motegi T, Kaga M, Yanagawa Y, Kadowaki H, Watanabe K, Inoue A, Komatsu M, Minoda K. A recognizable pattern of the midface of retinoblastoma patients with interstitial deletion of 13q. Hum Genet 1983; 64:160-2. [PMID: 6885051 DOI: 10.1007/bf00327116] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In our study, we found a recognizable pattern of the midface in three retinoblastoma patients with interstitial deletion of chromosome 13 in lymphocytes. Further photographs of patients reported by other authors confirmed our conclusion that the midface in children with interstitial deletion of 13q from q12 to q22, always involving q14, is characterized by prominent eyebrows, broad nasal bridge, bulbous tip of the nose, a large mouth with a thin upper lip, and a long philtrum. This midface pattern could not be recognized in patients with normal karyotypes, suggesting that the critical segment for the midface phenotype as well as for retinoblastoma may exist in band 13q14.
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