著者

玄 順浩 阪口 玄二

出版者

公益社団法人 日本獣医学会

雑誌

日本獸醫學雜誌(The Japanese Journal of Veterinary Science) (ISSN:00215295)

巻号頁・発行日

vol.51, no.3, pp.582-586, 1989-06-15 (Released:2008-02-13)

参考文献数

11

被引用文献数

10 20

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C型ボツリヌス菌芽胞(1羽当たり1×107個)を経口投与すると,食糞を可能にしたニワトリは発症,死亡したが,食糞を不可能にしたニワトリは発症しなかった.食糞可能群,不可能群とも,芽胞投与後数日間,盲腸糞にC1毒素の排泄がみられた.また,食糞可能群の発症鶏,無発症鶏とも,血中毒素が検出されたが,食糞不可能群からは検出されなかった.以上の結果から,ニワトリに経口投与されたC型ボツリヌス菌芽胞は,消化管(盲腸)内で発芽,増殖すると共に毒素を産生し,盲腸糞に一旦排泄されたのち,菌体と共に再摂取され,毒素(C1L毒素)は腺胃内で菌体と結合して安定化され,上部小腸から吸収され,ニワトリを発症させたと考えられる.このように,食糞は,ニワトリ・ボツリヌス症発病に重要な役割を果たすと考えられる.

著者

Morihiro TATENO Masashi TAKAHASHI Eri MIYAKE Kazuo NISHIGAKI Hajime TSUJIMOTO Yasuyuki ENDO

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

pp.17-0039, (Released:2017-08-25)

被引用文献数

13

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Gammaherpesviruses (GHVs) are members of an emerging subfamily of the family Herpesviridae. A recent study identified a novel GHV in domestic cats (Felis catus GHV1, FcaGHV1), and epidemiological surveys have found that FcaGHV1 is distributed worldwide. In this study, we investigated the prevalence of GHVs in domestic cats in Japan with a molecular epidemiological survey. Blood samples were collected from 1,738 domestic cats and GHV-derived DNA was detected with PCR in 1.3% (23/1,738) of the Japanese domestic cats. The FcaGHV1 detected in this study was very similar to FcaGHV1 detected in a domestic cat in North America. Older age (>5 years old) and Feline immunodeficiency virus infection were identified as risk factors for GHV infection.

著者

松葉 重雄

出版者

公益社団法人 日本獣医学会

雑誌

中央獸醫學雑誌 (ISSN:18839088)

巻号頁・発行日

vol.45, no.12, pp.1023-1029, 1932-12-20 (Released:2008-10-24)

著者

Toshiro YAMAGUCHI Kaita SAWANO Kazuhisa FURUHAMA Chizuo MORI Kazutaka YAMADA

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

pp.12-0296, (Released:2012-08-28)

被引用文献数

2 5

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We utilized autoradiography to visualize radioactive contamination in the skeletal muscles of a pig raised within 20 km of the Fukushima Daiichi nuclear power plant following the nuclear accident. The autoradiogram of control muscle showed relatively homogenous exposure. In contrast, the autoradiogram of affected muscle showed a heterogeneous and sporadically dense imaging pattern. Photo luminescence densities of the affected and control muscles were 3.89 ± 0.67 and 2.13 ± 0.43 PSL/mm2, respectively. This difference indicated that radioactive cesium was distributed in the skeletal muscle of the affected pig.

著者

Satoru TERAI Hideki ENDO Worawut RERKAMNUAYCHOKE Eiichi HONDO Srihadi AGUNGPRIYONO Nobuo KITAMURA Masamichi KUROHMARU Junpei KIMURA Yoshihiro HAYASHI Takao NISHIDA Junzo YAMADA

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

vol.60, no.10, pp.1097-1105, 1998 (Released:2001-10-06)

参考文献数

15

被引用文献数

6 10

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The lesser mouse deer (Tragulus javanicus) is one of the most primitive ruminants. Skulls of lesser mouse deer were measured to evaluate their growth. The age was estimated from the eruption and attrition of molars on the mandible. A total of 95 specimens was divided into five age groups, and the growth pattern in each sex was established for some measurements. The relative growth coefficients were calculated for the head and body length and several parts of the cranium and mandible against the profile length. Sexual dimorphism could not be found on the skull in any age group except for measurements related to the upper canine. However, females showed a higher value in head and body length in the oldest group. This feature was consistent with an interpretation of mouse deer society as monogamous. Growth was more rapid in length than in width. Various statistical analyses showed that the visceral cranium related to masticatory facility was much better developed than the neurocranium. However, observations on the shape of the mandible ramus and of the premolars implied that the masticatory function was not suitable for taking roughage. This speculation agreed with previous reports on the feeding habits and digestive organs of the mouse deer.

著者

武上 耕一

出版者

公益社団法人 日本獣医学会

雑誌

中央獸醫會雑誌 (ISSN:18839096)

巻号頁・発行日

vol.34, no.4, pp.215-223, 1921-04-10 (Released:2008-10-24)

参考文献数

5

著者

Mifumi KAWABE Yuta BABA Reo TAMAI Ryohei YAMAMOTO Masayuki KOMORI Takashi MORI Shigeo TAKENAKA

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

pp.14-0641, (Released:2015-04-04)

被引用文献数

1 11

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Malignant melanoma is one of the most common and aggressive tumors in the oral cavity of dog. The tumor has a poor prognosis, and methods for diagnosis and prediction of prognosis after treatment are required. Here, we examined metabolite profiling using gas chromatography-mass spectrometry (GC-MS) for development of a discriminant model for evaluation of prognosis. Metabolite profiles were evaluated in healthy and melanoma plasma samples using orthogonal projection to latent structure using discriminant analysis (OPLS-DA). Cases that were predicted to be healthy using the OPLS discriminant model had no advanced lesions after radiation therapy. These results indicate that metabolite profiling may be useful in diagnosis and prediction of prognosis of canine malignant melanoma.

著者

Maika FUJITA Masahiro KANEDA

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

pp.17-0179, (Released:2017-06-24)

被引用文献数

6

---

DNA methylation is an epigenetic mechanism controlling gene expression without affecting DNA sequences, and aberrant DNA methylation patterns are features of a number of diseases. Notably, epigenetic errors in cancer cells have been intensively studied over the last two decades in humans; however, little is known concerning dogs and cats. To analyze DNA methylation and gene expression changes in feline lymphoma cells, we added the DNA methylation inhibitor 5-aza-2′-deoxycytidine (5-aza) to three cell lines (3281 and FT-1 cells derived from T-cell lymphoma and MS4 cells derived from B-cell lymphoma). Adding 5-aza significantly retarded cell growth in a dose-dependent manner in all cell lines, and there were aberrant gene expression patterns. Transcription factor Sox11 expression in 3281 cells was de-repressed by 5-aza treatment, and subsequent promoter DNA demethylation was analyzed by bisulfite sequencing. Cell cycle analysis suggested that inhibition of cell growth was due to DNA replication arrest, and this supported the result of increased expression of p27kip1 gene which disturbed cells of 3281 and FT-1 entering the S phase. In this study, 5-aza suppressed the growth of feline lymphoma cells, but further experiments with normal lymph cells are necessary to confirm specificity of this drug treatment and to expand it for clinical use.

著者

Masashi TAKAHASHI Hirotaka TOMIYASU Eri HOTTA Hajime ASADA Kenjiro FUKUSHIMA Hideyuki KANEMOTO Yasuhito FUJINO Koichi OHNO Kazuyuki UCHIDA Hiroyuki NAKAYAMA Hajime TSUJIMOTO

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

pp.13-0414, (Released:2014-01-20)

被引用文献数

6 40

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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.

著者

Yuya KIMURA Hidenobu KAWABATA Masaji MAEZAWA

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

pp.13-0231, (Released:2013-12-11)

被引用文献数

5

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Some individuals manifest psychosomatic symptoms after the death of their pets. A survey was conducted at four public and commercial animal cremation service centers in Japan. In each center, a questionnaire was distributed to 100 individuals (400 in total). The questionnaire consisted of the 28-item version of the General Health Questionnaire (GHQ28), the social readjustment rating scale (SRRS) and a series of questions regarding demographic information and the circumstances of their pet’s death. In total, 82 returned questionnaires were available for analysis. GHQ28 proved the existence of neurotic symptoms in 46 responses (56.1%; 95% confidence interval: 44.7–67.0%). Analysis of the responses using the GHQ28 subscales with a Likert scoring system demonstrated more somatic dysfunction in females (GHQ-A: P=0.04). Furthermore, significant correlations were identified among the following factors: owner’s age (GHQ-A: P=−0.60, P=0.01; GHQ-B: P=−0.29, P=0.01; GHQ-C: P=−0.32, P<0.01; GHQ-D: P=−0.42, P<0.01), SRRS score (GHQ-A: P=0.32, P<0.01; GHQ-B: P=0.25, P=0.02; GHQ-D: P=0.30, P=0.01) and animal’s age (GHQ-D: P=−0.26, P=0.02). The death of indoor pets caused deeper depression (GHQ-D: P=0.01) than that of outdoor or visiting pets. The results revealed neurotic symptoms in almost half of the pet owners shortly after their pet’s death.

著者

Toshiro YAMAGUCHI Kaita SAWANO Miori KISHIMOTO Kazuhisa FURUHAMA Kazutaka YAMADA

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

pp.12-0170, (Released:2012-08-03)

被引用文献数

2 1

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Soil samples from the ground surface and feces and blood from a mixed-breed male pig were collected on April 10, 2011 at a farm within 20 km of the Fukushima Daiichi nuclear power plant. The radioactivity of each sample was measured using a Ge semiconductor detector. Despite the fact that the pig had been fed non-contaminated imported feed, 131I, 134Cs, and 137Cs were detected in the feces, and 134Cs and 137Cs were detected in the blood clots. Because it is considerably difficult to measure radioactive contamination in the edible muscle of living livestock, bioassays are an option for the screening of radioactive contamination in living livestock to ensure food safety.

著者

Yusuke ENDO Jun TAMURA Tomohito ISHIZUKA Takaharu ITAMI Kiwamu HANAZONO Kenjiro MIYOSHI Tadashi SANO Kazuto YAMASHITA William W. MUIR

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

pp.16-0287, (Released:2017-07-10)

被引用文献数

16

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Changes in stroke volume variation (SVV) and pulse pressure variation (PPV) in response to fluid infusion were experimentally evaluated during vecuronium infusion and sevoflurane anesthesia in 5 adult, mechanically ventilated, euvolemic, beagle dogs. Sequential increases in central venous pressure (CVP; 3–7[baseline], 8–12, 13–17, 18–22 and 23–27 mmHg) were produced by infusing lactated Ringer’s solution and 6% hydroxyethyl starch solution. Heart rate (beats/min), right atrial pressure (RAP, mmHg), pulmonary arterial pressure (PAP, mmHg), pulmonary capillary wedge pressure (PCWP, mmHg), transpulmonary thermodilution cardiac output (TPTDCO, L/min), stroke volume (SV, ml/beat), arterial blood pressure (ABP, mmHg), extravascular lung water (EVLW, ml), pulmonary vascular permeability index (PVPI, calculated), SVV (%), PPV (%) and systemic vascular resistance (SVR, dynes/sec/cm5) were determined at each predetermined CVP range. Heart rate (P=0.019), RAP (P<0.001), PAP (P<0.001), PCWP (P<0.001), TPTDCO (P=0.009) and SV (P=0.04) increased and SVR (P<0.001), SVV (P<0.001) and PPV (P<0.001) decreased associate with each stepwise increase in CVP. Arterial blood pressure, EVLW, PVPI and the arterial partial pressures of oxygen and carbon dioxide did not change. The changes in SVV and PPV directly reflected the fluid load and the minimum threshold values for detecting fluid responsiveness were SVV≥11% and PPV≥7% in dogs.

著者

Satoshi KAMBAYASHI Masaya IGASE Kosuke KOBAYASHI Ayana KIMURA Takako SHIMOKAWA-MIYAMA Kenji BABA Shunsuke NOGUCHI Takuya MIZUNO Masaru OKUDA

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

pp.15-0258, (Released:2015-06-06)

被引用文献数

1 12

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Hypoxic conditions in various cancers are believed to relate with their malignancy, and hypoxia inducible factor-1α (HIF-1α) has been shown to be a major regulator of the response to low oxygen. In this study, we examined HIF-1α expression in canine lymphoma using cell lines and clinical samples and found that these cells expressed HIF-1α. Moreover, the HIF-1α inhibitors, echinomycin, YC-1 and 2-methoxyestradiol, suppressed the proliferation of canine lymphoma cell lines. In a xenograft model using NOD/scid mice, echinomycin treatment resulted in a dose-dependent regression of the tumor. Our results suggest that HIF-1α contributes to the proliferation and/or survival of canine lymphoma cells. Therefore, HIF-1α inhibitors may be potential agents to treat canine lymphoma.

著者

Nao NAGATA Sanae SHIBATA Hiroki SAKAI Hiroaki KONNO Satoshi TAKASHIMA Mifumi KAWABE Takashi MORI Hitoshi KITAGAWA Makoto WASHIZU

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

pp.14-0300, (Released:2014-10-10)

被引用文献数

5

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A 7-year-old, miniature dachshund was referred for examination and treatment of persistent anorexia, deep yellow-coloured urine and leucocytosis. The clinical sign of jaundice, results from a serum biochemistry profile and ultrasonographic images suggested a biliary tract obstruction. A cholecystectomy was performed to remove the obstruction. Histopathological assessment of the resected gallbladder and partial common bile duct indicated diffuse large B-cell lymphoma. Twelve days after the initial operation, a second procedure was performed due to bile leakage into the abdominal cavity. Chemotherapy was administered twice after the second operation but discontinued, because the dog showed adverse effects. The dog is still alive 24 months after the surgery. To the authors’ knowledge, this is the first description of canine gallbladder lymphoma.

著者

Nao TSUZUKI Yoshiro ENDO Lisa KIKKAWA Kenji KOROSUE Yasuyuki KANEKO Akira KITAUCHI Hiromu KATAMOTO Yuichi HIDAKA Mitsuyoshi HAGIO Shidow TORISU

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

vol.77, no.12, pp.1647-1650, 2015 (Released:2016-01-01)

参考文献数

17

被引用文献数

2 13

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The performance of horses undergoing regular intense exercise is adversely affected by oxidative stress. Thus, it is important to increase antioxidant production in horses in order to reduce oxidative stress. Ozonated autohemotherapy (OAHT) reportedly promotes antioxidant production. This study aimed to evaluate the effects of OAHT on antioxidant capacity. Ten Thoroughbred horses were used in this study. After the OAHT, we collected serum samples and measured biological antioxidant potential (BAP). We found that BAP began to increase after the OAHT and was significantly higher in the OAHT group than at 3 (P<0.01) and 7 days (P<0.05) after OAHT than in the control group at 3 and 7 days after starting collection of blood samples. Therefore, it was shown that OAHT improved the antioxidant capacity of the horses.

著者

Saaya HIYOSHI-KANEMOTO Yuko GOTO-KOSHINO Kenjiro FUKUSHIMA Masashi TAKAHASHI Hideyuki KANEMOTO Kazuyuki UCHIDA Yasuhito FUJINO Koichi OHNO Hajime TSUJIMOTO

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

pp.15-0433, (Released:2016-02-18)

被引用文献数

2

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The presence of circulating tumor cells (CTCs) serves as a prognostic marker and indicator of disease relapse, as well as a means of evaluating treatment efficacy in human and canine lymphoma patients. As an extension of our previous study for the construction of clinically useful GeneScan system, we utilized the GeneScan system for detecting CTCs in canine lymphoma patients. Samples from the primary lesion and peripheral blood mononuclear cells (PBMCs) were obtained from 32 dogs with lymphoma at initial diagnosis. All samples were subjected to polymerase chain reaction (PCR) for antigen receptor gene rearrangements (PARR) followed by GeneScan analysis. Common clonal rearrangements with identical amplified fragments were detected in both the primary lesion and PBMCs in 19 of the 32 dogs (59.4%). However, the detection rate of CTCs varied among the anatomical classification of lymphoma studied. GeneScan analysis following PARR would facilitate studies on determining the clinical significance of CTCs in canine lymphoma patients.

著者

Maki ISHIBASHI Hideo AKIYOSHI Toshie ISERI Fumihito OHASHI

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

vol.75, no.6, pp.809-813, 2013 (Released:2013-07-01)

参考文献数

23

被引用文献数

2 9

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To verify availability of skin conductance (SC) as an indicator for the sympathetic nervous system (SNS) activity in dogs, the changes in SC and blood levels of stress-related hormones induced by drugs were compared. SC and cortisol, adrenaline and noradrenaline levels were measured in 5 dogs on 4 occasions with or without drug-induced sedation at 7-day intervals (no treatment, intramuscular medetomidine 0.01 mg/kg, intramuscular acepromazine 0.1 mg/kg and intravenous fentanyl 0.02 mg/kg). The fentanyl treatment produced significantly higher levels of SC and plasma cortisol and adrenaline compared with the other 3 treatments. The plasma noradrenaline level also tended to be higher following the fentanyl treatment. These results indicate that SC may reflect changes in the SNS activities in dogs.

著者

Ayami NOJIRI Hideo AKIYOSHI Fumihito OHASHI Atsuki IJIRI Osamu SAWASE Tomiharu MATSUSHITA Mitsuru TAKEMOTO Shunsuke FUJIBAYASHI Takashi NAKAMURA Tsutomu YAMAGUCHI

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

pp.13-0548, (Released:2014-10-16)

被引用文献数

5

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A 4-year-old Shih-Tzu, referred for an enlarged left carpus, was diagnosed with a unicameral bone cyst. A customized titanium device was inserted into cystic lesion and fixed by titanium screws. Sufficient strength of the affected bone with the device inserted to maintain limb function was established after resection of contents of cystic lesion. There was no deterioration of the lesion of bone cyst, and acceptable function of the affected limb with no clinical signs of lameness was maintained during 36 months follow-up. The results of this study demonstrated that bone cyst curettage and use of a customized titanium device could provide an effective alternative treatment of huge lesion of unicameral bone cysts with the intent of preventing pathologic fractures.

著者

Shinya YAMAMOTO Katsuichiro HOSHI Atsushi HIRAKAWA Syuuichi CHIMURA Masayuki KOBAYASHI Noboru MACHIDA

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

pp.13-0064, (Released:2013-06-28)

被引用文献数

7 50

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In the study presented here, we aimed to describe the epidemiological, clinical and pathological findings of 51 canine cases with histologically-verified diagnoses of primary cardiac hemangiosarcoma (HSA). The medical data for each dog, including signalment, presenting complaints, physical examination findings, results of various diagnostic testing performed and method of treatment, were checked. In addition, all 51 cases were re-examined pathologically. The tumor occurred most frequently in older Golden Retrievers, followed by Maltese dogs and Miniature Dachshunds. Mass lesions of HSA were found more commonly in the right auricle (RAu) (25/51) and right atrium (RA) (21/51), and the RA masses were significantly (P<0.001) larger than the RAu masses. The echocardiographic detection rate of masses in the RAu group (60%; 15/25) was significantly lower than that in the RA group (95%; 20/21). Survival time was significantly (P<0.05) longer for 5 dogs that received adjuvant chemotherapy after tumor resection than for 12 dogs that did not. In this series, the Maltese (9/51) and Miniature Dachshund (7/51), as well as the Golden Retriever, were represented more frequently than other breeds. The lower echocardiographic detection rate of RAu masses compared with RA masses may be related to tumor size and/or location. The significantly longer survival time for dogs receiving adjuvant chemotherapy indicates that postoperative chemotherapy could be useful for dogs with cardiac HSA.

著者

Junko CHINO Yasuhito FUJINO Tetsuya KOBAYASHI Kazuhiro KARIYA Yuko GOTO-KOSHINO Koichi OHNO Hiroyuki NAKAYAMA Hajime TSUJIMOTO

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

pp.12-0246, (Released:2013-01-21)

被引用文献数

5 25 2

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Of the various classification systems for non-Hodgkin’s lymphoma, the updated Kiel classification is valuable for veterinary practice, because of its utility to classify the subtypes not only by histopathology but also by cytomorphology. However, there are only a few reports of small number of feline lymphomas to apply the updated Kiel classification. In this study, immunogical subtypes and morphology of 76 feline lymphomas were evaluated and classified into subtypes of the updated Kiel classification. Of the cases, 49% were T-cell lymphoma, 25% were B-cell lymphoma and 26% were undetermined immunological subtype. Based on the updated Kiel classification, most subtypes were identified also in feline lymphomas as in dogs and humans. Globule leukocyte lymphoma was specific for cats and relatively common in feline alimentary lymphomas. Of the present cases, 64% were high-grade subtypes, whereas 36% were low-grade subtypes. The present study indicated that feline lymphomas could be morphologically classified by the modified updated Kiel classification.