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Kitagawa A, Drentje AG, Fujita T, Muramatsu M, Fukushima K, Shiraishi N, Suzuki T, Takahashi K, Takasugi W, Biri S, Rácz R, Kato Y, Uchida T, Yoshida Y. Recent developments of ion sources for life-science studies at the Heavy Ion Medical Accelerator in Chiba (invited). THE REVIEW OF SCIENTIFIC INSTRUMENTS 2016; 87:02C107. [PMID: 26932117 DOI: 10.1063/1.4934843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
With about 1000-h of relativistic high-energy ion beams provided by Heavy Ion Medical Accelerator in Chiba, about 70 users are performing various biology experiments every year. A rich variety of ion species from hydrogen to xenon ions with a dose rate of several Gy/min is available. Carbon, iron, silicon, helium, neon, argon, hydrogen, and oxygen ions were utilized between 2012 and 2014. Presently, three electron cyclotron resonance ion sources (ECRISs) and one Penning ion source are available. Especially, the two frequency heating techniques have improved the performance of an 18 GHz ECRIS. The results have satisfied most requirements for life-science studies. In addition, this improved performance has realized a feasible solution for similar biology experiments with a hospital-specified accelerator complex.
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Muramatsu M, Hojo S, Iwata Y, Katagiri K, Sakamoto Y, Takahashi N, Sasaki N, Fukushima K, Takahashi K, Suzuki T, Sasano T, Uchida T, Yoshida Y, Hagino S, Nishiokada T, Kato Y, Kitagawa A. Development of a compact ECR ion source for various ion production. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2016; 87:02C110. [PMID: 26932120 DOI: 10.1063/1.4935221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
There is a desire that a carbon-ion radiotherapy facility will produce various ion species for fundamental research. Although the present Kei2-type ion sources are dedicated for the carbon-ion production, a future ion source is expected that could provide: (1) carbon-ion production for medical use, (2) various ions with a charge-to-mass ratio of 1/3 for the existing Linac injector, and (3) low cost for modification. A prototype compact electron cyclotron resonance (ECR) ion source, named Kei3, based on the Kei series has been developed to correspond to the Kei2 type and to produce these various ions at the National Institute of Radiological Sciences (NIRS). The Kei3 has an outer diameter of 280 mm and a length of 1120 mm. The magnetic field is formed by the same permanent magnet as Kei2. The movable extraction electrode has been installed in order to optimize the beam extraction with various current densities. The gas-injection side of the vacuum chamber has enough space for an oven system. We measured dependence of microwave frequency, extraction voltage, and puller position. Charge state distributions of helium, carbon, nitrogen, oxygen, and neon were also measured.
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Igarashi H, Ohno K, Horigome A, Fujiwara-Igarashi A, Kanemoto H, Fukushima K, Odamaki T, Tsujimoto H. Fecal dysbiosis in miniature dachshunds with inflammatory colorectal polyps. Res Vet Sci 2016; 105:41-6. [PMID: 27033906 DOI: 10.1016/j.rvsc.2016.01.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 12/07/2015] [Accepted: 01/12/2016] [Indexed: 02/07/2023]
Abstract
Chronic gastrointestinal disease is associated with the alteration of gastrointestinal microbiota. Inflammatory colorectal polyps (ICRPs) are commonly observed in miniature dachshunds (MDs) in Japan and are characterized by multiple polyps that are restricted in the colorectal mucosa with severe neutrophil infiltration. This study was aimed to compare the fecal microbiota of ICRP-affected MDs with that of healthy MDs. High-throughput sequencing of amplicons derived from the V3-V4 region of the 16S rRNA gene was applied using the Illumina MiSeq system. Principal coordinates analysis revealed that fecal microbiota of ICRP-affected MDs was significantly altered compared with that of healthy MDs. Proportions of Fusobacteriaceae, Helicobacteraceae, Porphyromonadaceae, and Turicibacteraceae were significantly more abundant in ICRP-affected MDs, while those of Lachnospiraceae were significantly less abundant in ICRP-affected MDs compared with healthy MDs. These results suggest that the dysbiosis is associated with ICRPs and is a potential therapeutic target, though further investigations are needed.
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Fukushima K. Poly(trimethylene carbonate)-based polymers engineered for biodegradable functional biomaterials. Biomater Sci 2016; 4:9-24. [DOI: 10.1039/c5bm00123d] [Citation(s) in RCA: 211] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review presents recent examples of applications and functionalization strategies of poly(trimethylene carbonate), its copolymers, and its derivatives to exploit the unique physicochemical properties of the aliphatic polycarbonate backbone.
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Terashima N, Fukushima K, He LF, Takabe K. Comprehensive Model of the Lignified Plant Cell Wall. FORAGE CELL WALL STRUCTURE AND DIGESTIBILITY 2015. [DOI: 10.2134/1993.foragecellwall.c10] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Fukushima K, Eguchi N, Ohno K, Kanemoto H, Takahashi M, Igarashi H, Ohmi A, Nakashima K, Tsujimoto H. Efficacy of leflunomide for treatment of refractory inflammatory colorectal polyps in 15 Miniature Dachshunds. J Vet Med Sci 2015; 78:265-9. [PMID: 26460312 PMCID: PMC4785116 DOI: 10.1292/jvms.15-0129] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Inflammatory colorectal polyp (ICRP), common in miniature dachshunds, presents with hematochezia, tenesmus
and mucoid feces. Although an 80% response rate has been reported when treated with prednisolone and
cyclosporine, effective treatment is needed for the remaining 20% of ICRP dogs. Leflunomide is an
immunosuppressive drug reported as effective in several immune-mediated diseases. In the present study, we
retrospectively evaluated the efficacy and adverse effects of leflunomide in 15 ICRP dogs that were refractory
to treatment with prednisolone and cyclosporine. Treatment efficacy was assessed by endoscopy, clinical
symptoms and rectal palpation. Adverse effects were determined by clinical symptoms and blood testing during
follow-up. The leflunomide treatment response rate was 93.3%. The median dosage of leflunomide and the median
response time were 3 mg/kg (range: 1.7–4.0 mg/kg) and 35 days (range: 20–119 days), respectively. Adverse
effects observed included lethargy (3 dogs), anorexia (1 dog), respiratory symptoms (1 dog), leukocytopenia (2
dogs), thrombocytopenia (1 dog), anemia (1 dog) and liver enzyme elevation (8 dogs). Most of the adverse
effects improved with symptomatic treatment and leflunomide discontinuation or dosage reduction. In
conclusion, leflunomide treatment is effective in ICRP dogs refractory to treatment with prednisolone and
cyclosporine. Because several adverse effects were observed, close monitoring is needed during leflunomide
treatment follow-up.
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Shiba N, Miyazakaki D, Yoshizawa T, Fukushima K, Imamura M, Takeda S, Nakamura A. Ablation of MMP-9 promotes resolution of inflammation and regeneration by modulating chemotaxis in early stage but exacerbates fibrosis in late stage in mdx mice. Neuromuscul Disord 2015. [DOI: 10.1016/j.nmd.2015.06.383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Fukushima K, Fujiwara R, Yamamoto K, Kanemoto H, Ohno K, Tsuboi M, Uchida K, Matsuki N, Nishimura R, Tsujimoto H. Characterization of triple-phase computed tomography in dogs with pancreatic insulinoma. J Vet Med Sci 2015; 77:1549-53. [PMID: 26118410 PMCID: PMC4710709 DOI: 10.1292/jvms.15-0077] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Little information is available regarding triple-phase computed tomography (CT) of canine
pancreatic insulinoma. A few case reports with small numbers of cases have indicated that
hyper-attenuation in the arterial phase was a common finding on multi-phasic CT in dogs
with insulinoma. Our purpose was to clarify the characteristic findings of dogs with
insulinoma on triple-phase CT. Nine dogs with insulinoma that underwent triple-phase CT
were included in the present study. Attenuation patterns in the arterial phase indicated
hypo-attenuation in 4 cases and hyper-attenuation in 2 cases. In the remaining 3 cases, 1
case showed hypo-attenuation and 1 case showed hyper-attenuation in the pancreatic phase,
and 1 case presented hyper-attenuation in the later phase. Altogether, 5 cases showed hypo
and 4 cases showed hyper-attenuation in at least one phase. The enhancement pattern was
homogenous in 7 cases and heterogeneous in 2 cases. Tumor margins were well-defined in 5
cases and ill-defined in 4 cases. Capsule formation was present in 5 cases and absent in 4
cases. In conclusion, it is important to note that hypo-attenuation was as common as
hyper-attenuation in dogs with insulinoma in triple-phase CT in at least one phase.
Additionally, mass lesions were most conspicuous not only in the arterial phase but in the
pancreatic and later phases in some cases. Therefore, it is important to perform
triple-phase CT and notice about variable findings for the detection of canine pancreatic
insulinoma.
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Oishi M, Ohno K, Sato T, Tamamoto T, Kanemoto H, Fukushima K, Tsujimoto H. Measurement of feline lipase activity using a dry-chemistry assay with a triolein substrate and comparison with pancreas-specific lipase (Spec fPL(TM)). J Vet Med Sci 2015; 77:1495-7. [PMID: 26050751 PMCID: PMC4667670 DOI: 10.1292/jvms.15-0149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Pancreatic lipase immunoreactivity (Spec fPL) is currently considered to be the most accurate blood test for the diagnosis of feline pancreatitis. In this study, we measured lipase activity in cats using a newer catalytic lipase assay of dry-chemistry system (FDC-v-LIP) to determine the reference range and compared the results with those for Spec fPL. Based on the results of healthy cats, the reference range of FDC-v-LIP was determined to be less than 30 U/l. FDC-v-lip did not show a strong correlation with Spec fPL in cats with various diseases, which resulted in the low sensitivity and positive predictive value. However, the relatively high (>90%) specificity and negative predictive value indicated that FDC-v-LIP could be a useful patient-side screening test for the exclusion of feline pancreatitis.
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Werner RA, Maya Y, Yamane T, Rischpler C, Fukushima K, Chen X, Lapa C, Herrmann K, Higuchi T, Thorn S, Stacy M, Purcell B, Doviak H, Shuman J, Perez E, Burdick J, Spinale F, Sinusas A, Treibel T, Bandula S, Fontana M, White S, Gilbertson J, Punwani S, Gillmore J, Hawkins P, Taylor S, Moon J, Caobelli F, Wollenweber T, Kuehn C, Bavendiek U, Schuetze C, Geworski L, Bauersachs J, Haverich A, Bengel F, Barysheva N, Merkulova I, Shabanova M, Gaman S, Veselova T, Shariya M, Kelion AD, Pakkal M, Chowdhury F, Nagaraj N, Birchall J, Dixon K, Banya W, Mccann G, Gershlick A, Rischpler C, Dirschinger R, Nicolosi S, Kossmann H, Meinicke A, Hanus F, Goetze K, Laugwitz K, Schwaiger M, Nekolla S, Rischpler C, Dirschinger R, Nicolosi S, Kossmann H, Meinicke A, Hanus F, Goetze K, Laugwitz K, Schwaiger M, Nekolla S. Moderated Poster Session 4: Monday 4 May 2015, 15:30-16:30 * Room: Moderated Poster Area. Eur Heart J Cardiovasc Imaging 2015. [DOI: 10.1093/ehjci/jev050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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61
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Igarashi H, Ohno K, Uchida E, Fujiwara-Igarashi A, Kanemoto H, Fukushima K, Uchida K, Tsujimoto H. Polymorphisms of nucleotide-binding oligomerization domain 2 (NOD2) gene in miniature dachshunds with inflammatory colorectal polyps. Vet Immunol Immunopathol 2015; 164:160-9. [PMID: 25746347 DOI: 10.1016/j.vetimm.2015.02.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 02/01/2015] [Accepted: 02/11/2015] [Indexed: 12/18/2022]
Abstract
Inflammatory colorectal polyps (ICRPs) frequently occur in miniature dachshunds (MDs) in Japan, typically form multiple polyps with severe neutrophil infiltration. ICRPs are speculated as a novel, breed-specific canine inflammatory bowel disease. Pattern recognition receptors (PRRs) play an important role in the differentiation of pathogens from commensal bacteria and food antigens, and polymorphisms of various PRRs have been shown to be associated with human and canine IBD. We recently reported that the reactivity of nucleotide-binding oligomerization domain 2 (NOD2), toll-like receptor (TLR) 1/2, TLR2, and TLR2/6 are greater in ICRP-affected MDs than that in controls. Therefore, this study was aimed to investigate single nucleotide polymorphisms (SNPs) of PRRs associated with ICRPs in MDs. Mutational analysis of canine NOD2, TLR1, TLR2, and TLR6 genes was performed with six ICRP-affected MDs, five control MDs, and five healthy beagles. The mutational analysis identified 13 non-synonymous SNPs in NOD2, TLR1, TLR2, and TLR6 genes, of which six SNPs in NOD2 exon 3 were further analyzed in an association study using 63 ICRP-affected MDs, 82 control MDs, and 237 control dogs of various breeds. Four of the SNPs (A1532G, T1573C, C1688G, and G1880A of the NOD2 gene) were in Hardy-Weinberg equilibrium and in complete linkage disequilibrium in MDs, and their minor allele frequencies were significantly lower in ICRP-affected MDs than in control MDs (0.016 vs. 0.140, P=0.0002). The calculated inheritance model was an additive model (odds ratio=0.10, 95% confidence interval=0.02-0.45, P=0.0001), which indicates that the haplotype with minor alleles in these SNPs (A, T, C, and G in A1532G, T1573C, C1688G, and G1880A) possess a protective effect regarding the development of ICRPs. However, these SNPs were not specific for MDs, although the minor allele frequencies of these SNPs in control MDs were significantly lower than in other breed dogs. These results suggest that the identified four SNPs (A1532G, T1573C, C1688G, and G1880A in the NOD2 gene) may play a role in the pathogenesis of ICRPs in MDs. Because the majority of MDs and other breed dogs do not have the protective alleles, their absence may not be a specific cause of ICRPs in MDs but rather contribute to the development of inflammation.
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Igarashi H, Ohno K, Fujiwara-Igarashi A, Kanemoto H, Fukushima K, Goto-Koshino Y, Uchida K, Tsujimoto H. Functional analysis of pattern recognition receptors in miniature dachshunds with inflammatory colorectal polyps. J Vet Med Sci 2014; 77:439-47. [PMID: 25650150 PMCID: PMC4427745 DOI: 10.1292/jvms.14-0505] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Inflammatory colorectal polyps (ICRPs) frequently occur in miniature dachshunds (MDs) in
Japan. MDs with ICRPs develop multiple polyps with severe neutrophil infiltration that
respond to immunosuppressive therapy. Therefore, ICRPs are thought to constitute a novel,
breed-specific form of canine inflammatory bowel disease (IBD). Pattern recognition
receptors (PRRs) play a key role in the distinction of pathogens from commensal bacteria
and food antigens. Dysfunction resulting from genetic disorders of PRRs have been linked
to human and canine IBD. Therefore, we analyzed the reactivity of PRRs in MDs with ICRPs.
Twenty-six MDs with ICRPs and 16 control MDs were recruited. Peripheral blood-derived
monocytes were obtained from each dog and then stimulated with PRR ligands for 6 and 24
hr; subsequently, messenger RNA (mRNA) expression levels and protein secretion of IL-1β
were quantified using quantitative real-time PCR and ELISA, respectively. The levels of
IL-1β mRNA and protein secretion after stimulation with a nucleotide-binding
oligomerization domain 2 (NOD2) ligand were significantly greater in monocytes from
ICRP-affected MDs than in those from control MDs. In addition, IL-1β protein secretion
induced by toll-like receptor (TLR) 1/2, TLR2 and TLR2/6 stimulation was also
significantly greater in ICRP-affected MDs. These results suggest that reactivity against
NOD2, TLR1/2, TLR2 and TLR2/6 signals is enhanced in ICRP-affected MDs and may play a role
in the pathogenesis of ICRPs in MDs. Additional studies of the genetic background of these
PRRs should be performed.
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Igarashi H, Ohno K, Fujiwara-Igarashi A, Kanemoto H, Fukushima K, Uchida K, Tsujimoto H. Inflammatory colorectal polyps in miniature Dachshunds frequently develop ventrally in the colorectal mucosa. Vet J 2014; 203:256-8. [PMID: 25576139 DOI: 10.1016/j.tvjl.2014.12.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 10/21/2014] [Accepted: 12/08/2014] [Indexed: 10/24/2022]
Abstract
This study explored the hypothesis that inflammatory colorectal polyps (ICRPs) in miniature Dachshunds are more likely to occur ventrally in the colorectum. Angle-fixed colonoscopic images were collected from 11 miniature Dachshunds with ICRPs and randomly rotated. Macroscopic severity at 12 divided angles was scored by four veterinarians blinded to the rotation angle. Mean prevalence and severity scores of ICRPs were significantly higher ventrally than dorsally (P < 0.01).
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Higashiyama R, Aikawa J, Iwase D, Minatani A, Watanabe H, Yoshihira T, Kenmoku T, Fukushima K, Watanabe E, Takaso M. Arthroscopic anterior talofibular ligament reconstruction using an autogenic gracilis tendon. J Sci Med Sport 2014. [DOI: 10.1016/j.jsams.2014.11.320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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65
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Kojima T, Yamada H, Saito Y, Nawa T, Isobe M, Yamamoto T, Aoki D, Matsushita Y, Fukushima K. Investigation of dyeing behavior of oxidative dye in fine structures of the human hair cuticle by nanoscale secondary ion mass spectrometry. Skin Res Technol 2014; 21:295-301. [PMID: 25323334 DOI: 10.1111/srt.12192] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/20/2014] [Indexed: 11/27/2022]
Abstract
BACKGROUND/PURPOSE In oxidative coloring, the hair cuticle layers are not only the penetration pathway for active ingredients but also one of the most important dyeing regions. The dyeing mechanism of oxidative dyes in fine structures of the cuticle remains unclear. To investigate the dyeing behavior of oxidative dyes in fine structures of the cuticle, hair cross-sections were analyzed by nanoscale secondary ion mass spectrometry (NanoSIMS). METHODS The preparation method of hair cross-section for NanoSIMS measurement was improved. Improved hair cross-sections were analyzed using NanoSIMS. RESULTS The cuticle layer thickness of the hair cross-section could be widened. It was confirmed that (12) C(-) ions were more strongly detected from endocuticle than from other fine structures of cuticle. The NanoSIMS (12) C(-) image and hue saturation intensity (HSI) D(-) /(1) H(-) ratio image of the hair, dyed with deuterium-labeled oxidative dye, indicated that the endocuticle had a higher D(-) /(1) H(-) ratio than the other fine structures of the cuticle. It was substantiated that more colored chromophores were fixated in the endocuticle than in other fine structures of the cuticle. CONCLUSION The dyeing behavior of oxidative dyes in fine structures of hair cuticle was substantiated by NanoSIMS analysis using the improved hair cross-section preparation method.
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Tamamoto T, Ohno K, Takahashi M, Fukushima K, Kanemoto H, Fujino Y, Tsujimoto H. Plasma matrix metalloproteinase-9 activity in cats with lymphoma. Vet Comp Oncol 2014; 15:1-5. [PMID: 24899544 DOI: 10.1111/vco.12097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 03/05/2014] [Accepted: 04/07/2014] [Indexed: 11/27/2022]
Abstract
In this study, plasma MMP-9 activity was evaluated in cats with lymphoma. Plasma samples were obtained from 26 cats with lymphoma before treatment. From 13 of the included 26 cats, plasma samples were obtained 4 weeks after the initiation of treatment. Plasma samples were also obtained from 10 healthy cats as a control. Plasma MMP-9 activity was examined by gelatin zymography and semi-quantitative value (arbitrary unit; a.u.) for each sample was calculated. Relatively high levels of MMP-9 were observed in cats with lymphoma compared with those in healthy control cats. MMP-9 quantification through zymography showed significantly higher activity in cats with lymphoma (median, 0.63 a.u.; range, 0.23-3.24 a.u.) than in healthy controls (0.22 a.u.; 0.12-0.46 a.u.; P < 0.01). MMP-9 activities were significantly different before (0.73 a.u.; 0.30-3.24 a.u.) and after treatment (0.50 a.u.; 0.14-1.32 a.u.; P = 0.017). Measuring plasma MMP-9 activity in cats with lymphoma may become an appropriate monitoring tool for feline lymphoma.
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Inui K, Koike T, Tada M, Sugioka Y, Mamoto K, Okano T, Sakawa A, Fukushima K, Nakamura H. AB0395 Restart for Sustaining Remission of Rheumatoid Arthritis in Use of Etanercept: Resume Study. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.1098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Igarashi H, Ohno K, Maeda S, Kanemoto H, Fukushima K, Uchida K, Tsujimoto H. Expression profiling of pattern recognition receptors and selected cytokines in miniature dachshunds with inflammatory colorectal polyps. Vet Immunol Immunopathol 2014; 159:1-10. [DOI: 10.1016/j.vetimm.2014.03.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 02/21/2014] [Accepted: 03/03/2014] [Indexed: 12/16/2022]
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69
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Takahashi M, Goto-Koshino Y, Fukushima K, Kanemoto H, Nakashima K, Fujino Y, Ohno K, Endo Y, Tsujimoto H. Phase I dose-escalation study of nimustine in tumor-bearing dogs. J Vet Med Sci 2014; 76:895-9. [PMID: 24521794 PMCID: PMC4108775 DOI: 10.1292/jvms.13-0345] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Nimustine (ACNU) is an alkylating agent of the nitrosourea and can be an antineoplastic agent in dogs. But, there has been no report on its dose-limiting toxicity (DLT) in dogs. This study was a phase I dose-escalation clinical trial to determine the maximum tolerated dose (MTD) and DLT of ACNU in tumor-bearing dogs. The starting dosage was 25 mg/m(2), and subsequent dosages were administered in increments of 5 mg/m(2) in cohort of 3 dogs. Eight dogs were included, the MTD was determined to be 25 mg/m(2), DLT was neutropenia, and the optimal interval was considered to be 21 days. The data herein provide a basis for the subsequent phase II trial of ACNU in dogs.
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Sato H, Fujino Y, Chino J, Takahashi M, Fukushima K, Goto-Koshino Y, Uchida K, Ohno K, Tsujimoto H. Prognostic analyses on anatomical and morphological classification of feline lymphoma. J Vet Med Sci 2014; 76:807-11. [PMID: 24521793 PMCID: PMC4108762 DOI: 10.1292/jvms.13-0260] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The present study was carried
out to analyze the prognosis of 163 cats with lymphoma classified anatomically and
cytomorphologically. Anatomically, alimentary lymphoma was the most common form and showed
significantly shorter survival than mediastinal and nasal lymphomas in cats.
Cytomorphologically, there was no predominant subtype in feline lymphomas. Immunoblastic
type (18%), centroblastic type (16%), globule leukocyte type (15%), lymphocytic type
(12%), lymphoblastic type (12%), pleomorphic medium and large cell type (10%) and
anaplastic large cell type (7%) were relatively common subtypes. Most of the cats with
globule leukocyte lymphoma had the alimentary form. Comparing median survival time among
classifications, cats with globule leukocyte lymphoma showed significantly shorter
survival than those with high-grade and other low-grade lymphomas. Furthermore, cats with
high-grade lymphomas showed significantly shorter survival than cats with other low-grade
lymphomas. The present study indicated the clinical significance of anatomical and
cytomorphological evaluation in feline lymphomas.
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Takahashi M, Tomiyasu H, Hotta E, Asada H, Fukushima K, Kanemoto H, Fujino Y, Ohno K, Uchida K, Nakayama H, Tsujimoto H. Clinical characteristics and prognostic factors in dogs with histiocytic sarcomas in Japan. J Vet Med Sci 2014; 76:661-6. [PMID: 24441652 PMCID: PMC4073334 DOI: 10.1292/jvms.13-0414] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Canine histiocytic sarcoma (HS) is a rare neoplasm that originates from
dendritic cells or macrophages, and there have been a number of cases experienced in
Japan. To identify the characteristics and prognostic variables that determine outcome in
dogs with HS in Japan, medical records of 73 dogs with HS were retrospectively analyzed.
Signalment, clinical signs, complete blood count (CBC), blood chemistry profiles,
treatment, response to treatment and overall survival (OS) were analyzed. Diagnosis of HS
was determined histologically in 44 cases and cytologically in 29 cases. The most
frequently diagnosed breeds were Flat-Coated Retrievers (n=16, odds ratio
[OR] 62.0), Pembroke Welsh corgis (n=15, OR 9.7) and Bernese Mountain
dogs (n=14, OR 45.0). Median survival time for all dogs in this study was
43 days. In the dogs that received no treatment or only symptomatic treatment, the median
OS was 12 days (range 2–254 days) compared with that of dogs that received surgical
treatment and/or chemotherapy (85 days, range 4–360 days). Univariate analysis identified
anemia, thrombocytopenia, hypoalbuminemia, hypoproteinemia and not receiving antitumor
treatment (chemotherapy and/or surgery) as factors significantly associated with shorter
OS. Multivariate analysis confirmed that platelet counts, localized/disseminated lesional
pattern and whether the dog received antitumor treatment were significantly predictive of
survival.
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Montoro Lopez M, Iniesta Manjavacas A, Mori Junco R, Pena Conde L, Pons De Antonio I, Garcia Blas S, Lopez Fernandez T, Moreno Gomez R, Moreno Yanguela M, Lopez Sendon J, Carro A, Kiotsekoglou A, Andoh J, Brown S, Kaski J, Imamura Y, Arai K, Uematsu S, Fukushima K, Hoshi H, Ashihara K, Takagi A, Hagiwara N, Gillis K, Bala G, Roosens B, Remory I, Droogmans S, Van Camp G, Cosyns B, Van De Heyning C, Magne J, Pierard L, Bruyere P, Davin L, De Maeyer C, Paelinck B, Vrints C, Lancellotti P, Borowiec A, Dabrowski R, Kowalik I, Firek B, Chwyczko T, Janas J, Szwed H, Tufaro V, Fragasso G, Ingallina G, Marini C, Fisicaro A, Loiacono F, Margonato A, Agricola E, Ferreira F, Pereira T, Abreu J, Labandeiro J, Fiarresga A, Ferreira A, Galrinho A, Branco L, Timoteo A, Ferreira R, Marmol R, Gomez M, Garcia K, Sanmiguel D, Cabades C, Monteagudo M, Nunez C, Fernandez C, Diez J, Roldan I, Kolesnyk M, Borowiec A, Dabrowski R, Kowalik I, Firek B, Chwyczko T, Janas J, Szwed H, Marini C, Tufaro V, Ancona M, Fisicaro A, Oppizzi M, Margonato A, Agricola E, Krestjyaninov M, Razin V, Gimaev R, Carminati M, Piazzese C, Tsang W, Lang R, Caiani E, Goncalves S, Ramalho A, Placido R, Marta L, Cortez Dias N, Magalhaes A, Menezes M, Martins S, Almeida A, Nunes Diogo A, Stokke TM, Ruddox V, Sarvari SI, Otterstad JE, Aune E, Edvardsen T, Pirone D, De Francesco V, Marino F, Gervasi F, Demartini C, Goffredo C, Bono M, Mega S, Chello M, Di Sciascio G, Martin Hidalgo M, Seoane Garcia T, Carrasco Avalos F, Mesa Rubio M, Delgado Ortega M, Ruiz Ortiz M, Mazuelos Bellido F, Suarez De Lezo Herrero De Tejada J, Pan Alvarez De Osorio M, Suarez De Lezo Cruz Conde J, Seoane Garcia T, Martin Hidalgo M, Carrasco Avalos F, Mesa Rubio M, Ruiz Ortiz M, Delgado Ortega M, Lopez Granados A, Romero Moreno M, Pan Alvarez-Ossorio M, Suarez De Lezo Cruz Conde J, Menichetti F, Bongiorni M, Ferro B, Segreti L, Bertini P, Mariotti R, Baldassarri R, Di Cori A, Zucchelli G, Guarracino F, Santoro A, Federco Alvino F, Giovanni Antonelli G, Raffaella De Vito R, Roberta Molle R, Sergio Mondillo S, Mahmoud Y, Abdel-Kader M, Guindy R, Elzahwy S, Dijkema E, Molenschot M, Slieker M, Oliveira Da Silva C, Sahlen A, Winter R, Back M, Ruck A, Settergren M, Manouras A, Shahgaldi K, Krestjyaninov M, Ruzov V. Club35 Poster Session Thursday 12 December: 12/12/2013, 08:30-18:00 * Location: Poster area. Eur Heart J Cardiovasc Imaging 2013. [DOI: 10.1093/ehjci/jet214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Fukushima K, Kanemoto H, Ohno K, Takahashi M, Fujiwara R, Nishimura R, Tsujimoto H. Computed tomographic morphology and clinical features of extrahepatic portosystemic shunts in 172 dogs in Japan. Vet J 2013; 199:376-81. [PMID: 24512983 DOI: 10.1016/j.tvjl.2013.11.013] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 09/26/2013] [Accepted: 11/17/2013] [Indexed: 11/18/2022]
Abstract
Canine extrahepatic congenital portosystemic shunts (EH-cPSS) are classified into several anatomical types, depending on the origin and termination of the shunt vessel. The aim of this retrospective study was to determine the proportion and clinical features of each anatomical shunt type in a population of dogs presented to a veterinary teaching hospital in Japan. Dogs diagnosed with EH-cPSS using computed tomographic (CT) portography were included (n=172) and shunts were classified based on previous reports. Clinical data were collected from case records and analysed statistically. The most common anatomical type was the spleno-phrenic shunt (n=64), followed by the spleno-azygos (n=38), right gastric-caval (n=29), spleno-caval (n=21), right gastric-caval with caudal loop (n=9), right gastric-phrenic (n=6), colono-caval (n=3), spleno-phrenic and azygos (n=1), and porto-caval (n=1) shunts. Spleno-phrenic and spleno-azygos shunts were diagnosed more frequently in older dogs than right gastric-caval and spleno-caval shunts (P<0.05). The portal vein/aortic (PV/Ao) ratio was significantly larger in dogs with spleno-phrenic shunts than in dogs with spleno-azygos, right gastric-caval or spleno-caval shunts (P<0.05). The PV/Ao ratio was significantly larger in dogs with spleno-azygos shunts than in dogs with right gastric-caval shunts. Dogs with spleno-phrenic shunts had significantly lower serum alkaline phosphatase activities than those with right gastric-caval or spleno-caval shunts. Dogs with spleno-phrenic shunts had significantly lower fasting ammonia concentrations than those with spleno-caval shunts.
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Sugitani M, Fujita Y, Yumoto Y, Fukushima K, Takeuchi T, Shimokawa M, Kato K. A new method for measurement of placental elasticity: Acoustic radiation force impulse imaging. Placenta 2013; 34:1009-13. [DOI: 10.1016/j.placenta.2013.08.014] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 08/22/2013] [Accepted: 08/22/2013] [Indexed: 01/01/2023]
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Kutsunai M, Kanemoto H, Fukushima K, Fujino Y, Ohno K, Tsujimoto H. The association between gall bladder mucoceles and hyperlipidaemia in dogs: a retrospective case control study. Vet J 2013; 199:76-9. [PMID: 24268484 DOI: 10.1016/j.tvjl.2013.10.019] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 09/11/2013] [Accepted: 10/18/2013] [Indexed: 11/25/2022]
Abstract
The diagnosis of gall bladder mucoceles (GM) in dogs has become increasingly frequent in veterinary medicine. Primary breed-specific hyperlipidaemia is reported in Shetland Sheepdogs and Miniature Schnauzers, breeds in which GM are known to occur more frequently than in other breeds. The objective of this study was to evaluate the association between GM and hyperlipidaemia in dogs. The study design was a retrospective case control study. Medical records of dogs diagnosed with GM at the Veterinary Medical Centre of The University of Tokyo between 1 April 2007 and 31 March 2012, were reviewed. Fifty-eight dogs with GM and a record of either serum cholesterol, triglyceride, or glucose concentrations were included in the study. Hypercholesterolaemia (15/37 cases; odds ratio [OR]: 2.92; 95% confidence interval [CI]: 1.02-8.36) and hypertriglyceridaemia (13/24 cases; OR: 3.55; 95% CI:1.12-15.91) showed significant association with GM. Pomeranians (OR: 10.69), American Cocker Spaniels (OR: 8.94), Shetland Sheepdogs (OR: 6.21), Miniature Schnauzers (OR: 5.23), and Chihuahuas (OR: 3.06) were significantly predisposed to GM. Thirty-nine out of 58 cases had at least one concurrent disease, including pancreatitis (five cases), hyperadrenocorticism (two cases), and hypothyroidism (two cases). A significant association between GM and hyperlipidaemia was confirmed, suggesting that hyperlipidaemia may play a role in the pathogenesis of GM.
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