• Title/Summary/Keyword: animal bone

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Protection against Whole Body γ-Irradiation Induced Oxidative Stress and Clastogenic Damage in Mice by Ginger Essential Oil

  • Jeena, Kottarapat;Liju, Vijayasteltar B;Ramanath, Viswanathan;Kuttan, Ramadasan
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.3
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    • pp.1325-1332
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    • 2016
  • Radioprotective effects of ginger essential oil (GEO) on mortality, body weight alteration, hematological parameters, antioxidant status and chromosomal damage were studied in irradiated mice. Regression analysis of survival data in mice exposed to radiation yielded LD50/30 as 7.12 and 10.14 Gy for control (irradiation alone) and experimental (GEO-treated irradiated) mice, respectively, with a dose reduction factor (DRF) of 1.42. In mice exposed to whole-body gamma-irradiation (6 Gy), GEO pre-treatment at 100 and 500 mg/kg b.wt (orally) significantly ameliorated decreased hematological and immunological parameters. Radiation induced reduction in intestinal tissue antioxidant enzyme levels such as superoxide dismutase, catalase, glutathione peroxidase and glutathione was also reversed following administration of GEO. Tissue architecture of small intestine which was damaged following irradiation was improved upon administration of GEO. Anticlastogenic effects of GEO were studied by micronuclei assay, chromosomal aberration and alkaline gel electrophoresis assay. GEO significantly decreased the formation of micronuclei, increased the P/N ratio, inhibited the formation of chromosomal aberrations and protected agaisnt cellular DNA damage in bone marrow cells as revealed by comet assay. These results are supportive of use of GEO as a potential radioprotective compound.

Acute Osteomyelitis in the Hand Due to Dog Bite Injury: A Report of 3 Cases

  • Lee, Ryun;Lee, Hee Young;Kim, Ji Hyun;Han, Yea Sik;Kim, Dong Chul;Tark, Kwan Chul
    • Archives of Plastic Surgery
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    • v.44 no.5
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    • pp.444-448
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    • 2017
  • As many people keep small dogs as pets, dog bites are common injuries, accounting for approximately 80%-90% of all animal bite injuries. These injuries usually occur on the upper extremities, most commonly on the fingers. Most of these injuries appear as simple lacerations or abrasions of the skin. Common symptoms include inflammatory reactions of the soft tissue, such as pain, swelling, erythema, and cellulitis. However, the complications of small dog bites may include joint or cartilage injuries, including acute osteomyelitis. Once osteomyelitis develops, it is difficult to diagnose since it has a latency period of approximately 2 weeks. Plain radiography, magnetic resonance imaging, and 3-phase bone scans should be performed when acute osteomyelitis is suspected, and broad-spectrum empiric antibiotic treatment should be administered for approximately 8-12 weeks. We report 3 very rare cases of acute osteomyelitis that occurred after a dog bite injury.

A case of using a vibrating saw to collect brain tissue for BSE (bovine spongiform encephalopathy) test in Holstein (홀스타인에서 BSE (bovine spongiform encephalopathy) 검사용 뇌 조직 채취를 위한 진동톱 사용례)

  • Lee, Jong-Won;Lee, Eun-Mi;Lee, Jung-Woo;Jung, Eun-Hye;Do, Jae-Cheul;Hur, Sung-Eun
    • Korean Journal of Veterinary Service
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    • v.39 no.3
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    • pp.205-210
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    • 2016
  • BSE (bovine spongiform encephalopathy)-like symptoms salivation, gait disorder, and the downer syndrome occurred to 8 heads of cattle at six cattle farms in Gyeonju, east eastern Gyeongsang province in 2013. Eight brain tissue samples using a vibration saw (Multimaster$^{(R)}$ FEIN, Germany) were collected referring to "The brain removal technique of transmisible spongiform encephalopathy sampling DVD" by Animal And Plant Quarantine Agency. Brain removal techinque using a vibration saw on the thick, solid frontal bone of cattle is more convenient for incision and removal than an ax for BSE testing.

Suppressive effect of Petroleum Ether Extract of Panax ginseng against Benzo(a)pyrene induced Micronuclei in Mice (인삼 석유에텔 추출물이 흰쥐에서 Benzo(a)pyrene에 의해 유도된 소핵생성의 억제효과)

  • Choi, Sung-Gyu;Kim, Cheon-Ho;Heo, Moon-Young
    • YAKHAK HOEJI
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    • v.35 no.6
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    • pp.466-472
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    • 1991
  • Petroleum ether extracts of panax ginseng C.A. Meyer (GPEE) were tested for the evaluation of anticlastogenic effects against benzo(a)pyrene-induced micronucleated polychromatic erythrocytes using mouse bone marrow micronucleus test. When the GPEE was singly administered before benzo(a)pyrene injection, GPEE showed significant anticlastogenic effect at $50{\sim}200\;mg/kg$. When the GPEE was multiply administered for 5 consecutive days before benzo(a)pyrene injection, GPEE showed potent anticlastogenic effect, even at the low doses, $5{\sim}50\;mg/kg/day$. As a control experiment, GPEE was administered without benzo(a)pyrene injection to demonstrate a clastogenic effect of this extract. When the range of $1{\sim}200\;mg/kg/day$ for 5 consecutive days was administered to mice, it was found that there was no increase of MNPCEs frequency.

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Cudrania tricuspidata Suppresses Mast Cell-Mediated Allergic Response In Vitro and In Vivo (꾸지뽕나무 추출물의 비만세포 억제에 의한 항알레르기 효과 및 기전)

  • Kim, Young-Mi
    • YAKHAK HOEJI
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    • v.56 no.1
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    • pp.26-34
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    • 2012
  • Mast cells play an important role in early and late phase allergic reactions through allergen and IgE-dependent release of histamine, proteases, prostaglandins, and several multifunctional cytokines. In this study, we investigated whether Cudrania tricuspidata extract (CTE) suppresses IgE-mediated allergic responses in mast cells, an allergic animal model, and its mechanism of action in mast cells. We found that CTE inhibited IgE-mediated degranulation and cytokine production in rat basophilic leukemia (RBL)-2H3 mast cells and bone marrow-derived mast cells (BMMC), as well as passive cutaneous anaphylaxis (PCA) in mice. With regard to its mechanism of action, CTE suppressed the activating phosphorylation of spleen tyrosine kinase (Syk), a key enzyme in mast cell signaling processes and that of LAT, a downstream adaptor molecule of Syk in $Fc{\varepsilon}RI$-mediated signal pathways. CTE also suppressed the activating phosphorylation of mitogen-activated protein (MAP) kinases and Akt. The present results strongly suggest that the anti-allergic activity of CTE is mediated through inhibiting degranulation and allergic cytokine secretion by inhibition of Syk kinase in mast cells. Therefore, CTE may be useful for the treatment of allergic diseases.

Fractures of the dog in Taegu area (대구지방에서 발생한 개의 골절)

  • 김대영;장인호
    • Journal of Veterinary Clinics
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    • v.15 no.1
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    • pp.222-227
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    • 1998
  • This survey was based on the data of one hundred four dogs with 108 case,T of fracture admitted to the veterinary teaching hospital, College of Veterinary Medicine, Kyungpook National University and 24 private small animal hospitals from January, 1995 to Decemberi 1996. The results were analyzed as following criteria; the distribution of fractures causes of fractured age and sexual distributions month of the most frequencel total body weights presence of communicating external wound, extent of damaged direction of fracture line, location of fracture liner fracture managements fixations methods, fixations methods according to location of fracture. The results of survey were as follow: 1. Main distribution of fracture; radius . ulna (23.1%).2. Causes of fracture; road toraffic accident (39.4 T,). 3. Age; over 24 months (27.9%). 4. Sex; male (53.89)), female (46.2%). 5. Month of the most frequence; July (14.4%) 6. Total body weight: 2-5 kg (45.27)). 7. Presence of communicating external wound; closed fracture (94.2%). 8. Extent of damage; complete fracture (92.6%). 9. Direction of fracture line: comminuted fracture (27.8 To). 10. Location of fracture line; diaphysis (62.0%). 11. Fracture management; open reduction (58.3% ). 12. Fixation methods; not treat (22.2%). 13. Fixation methods according to location of fracture; radius ulna-Kirschner wire fixation (45.5%), femur. shaft-intramedullary pinning (71.4%), pelvis-bone plate (53.3%), metacarpus-not treat, Kirschner wire fixation (each 30.8%).

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Radiographic Diagnosis of 'Rubber Jaw Syndrome' Secondary to Chronic Renal Failure Due to Ethylene Glycol Intoxication in a Dog (개에서 Ethylene glycol 중독에 의한 만성신부전증의 속발성 'Rubber jaw syndrome'의 방사선학적 진단례)

  • Choi, Ho-Jung;Lee, Young-Won;Wang, Ji-Hwan;Jung, In-Jo;Yeon, Seong-Chan;Lee, Hyo-Jong;Lee, Hee-Chun
    • Journal of Veterinary Clinics
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    • v.24 no.2
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    • pp.260-263
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    • 2007
  • A 9-month-old, intact female mixed dog was referred to Veterinary Medical Teaching Hospital of Gyeongsang National University with symmetrically enlarged and protruded upper jaw. The patient was diagnosed as acute renal failure due to ethylene glycol poisoning and was treated for 1 month in a local animal hospital. In spite of treatment, the patient proceeded to chronic renal failure. Also, the patient's upper jaw begun to enlarge continuously. To evaluate this upper jaw, radiographic examination was performed. Skull radiographs revealed thickening of maxilla, decreased bone opacity, cortical thinning, loss of lamina dura and periodontal space in the maxilla. Diagnosis of rubber jaw syndrome is based on clinicial signs, radiographic findings and laboratory evidence of chronic renal failure due to ethylene glycol poisoning.

A comparative study on the osteoporotic animal models in ddY mouse: ovariectomized and neurectomized models (ddY 마우스를 이용한 골다공증 모델에 대한 비교연구: 난소적출 및 신경절단 모델)

  • Lee, Hyeung-sik;Hong, Pyo-one;Ku, Se-kwang;Lee, Jae-hyun;Ham, Tae-Su
    • Korean Journal of Veterinary Research
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    • v.44 no.4
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    • pp.487-495
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    • 2004
  • In order to compare the induced time of osteoporosis between ovariectomized and neurectomized models in ddY mice. Experimental groups were divided into Sham, ovariectomized (OVX group) and neurectomized (NX group) group. The changes of body weight, tibia weight and histomorphometry of epiphyseal regions of tibia that were generally used as criteria index in osteoporosis, were evaluated at 2 and 4 weeks after operations with other generally used index-changes of serum osteocalcin. Also, calcium and phosphorus levels in the ash tibia were demonstrated with their ratio (Ca/P ratio). From the result of this study, evidences which reflect osteoporotic states of animals such as decrease of absolute and relative tibia weight, histomorphometrical index of epiphyseal region of tibia including trabecular bone volume %, and calcium and phosphorous contents in tibia, were generally detected from 4 weeks after ovariectomy and 2 weeks after neurectomy with increase of serum osteocalcin levels. In conclusion, it is considered that more rapid and favorable osteoporosis was induced in neurectomized model compared to that of ovariectomized model.

A Comparative Study on Urinary Ca Excretion in Young and Middle-Aged Korean Women (한국 젊은 성인 여성과 중년 여성의 소변중 Ca 배설과 이에 영향을 미치는 요인분석)

  • 조재현
    • Journal of Nutrition and Health
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    • v.25 no.2
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    • pp.132-139
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    • 1992
  • A study was conducted to compare urinary Ca excretion and factors influencing urinary Ca excretion in 30 young and 62 middle-aged Korean women. Mean daily intake levels of total protein and P were significantly higher in middle-aged women but Ca and animal protein intake levels of the two groups were similar. The average percentage of daily Ca intake from milk and milk products in young women was 45% while in middle-aged women it was about 24% The frequency of milk consumption was inversely correlated with blood pressures of the subjects. Mean 24-hour urinary calcium excretion in young and middle-aged women were 163.7mg and 174.9mg respectively. The difference was not significant. Menopause of the mid-dle-aged women did not affect urinary calcium levels. However the proportion of subjects with more than 250mg of Ca in 24-hour urine tended to be higher in middle-aged group Factors significnatly correlated with urinary Ca excretion of subjects were systolic and diastolic The study verifies the need for more systematic studies on Ca requirements and the interrelation-ship among Ca and na metabolism blood pressures and bone loss in the middle-aged Korean.

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Bone Marrow Toxicity Caused by Estrogen Toxicity in a Yorkshire Terrier with Leydig Cell Tumor

  • Kim, Yoon-Hee;Ko, Kyu-Ryeon;No, Mi-Young;Kim, Jae-Hoon;Choi, Ul-Soo
    • Journal of Veterinary Clinics
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    • v.36 no.2
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    • pp.129-131
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    • 2019
  • A 15-year-old intact Yorkshire terrier was presented with anorexia, lethargy, and a pale mucous membrane. A physical examination one year ago revealed right testis mass and subcutaneous petechia. Blood work revealed severe thrombocytopenia and mild anemia, and no abnormalities were found in serum chemistry or ultrasonography. The preoperative serum estrogen concentration was moderately elevated. The enlarged testis was surgically removed. A well-encapsulated mass composed of polyhedral or round with abundant eosinophilic cytoplasm containing fine granular or vacuolation were found in a histological examination of the removed tissue. The nuclei of tumor cells were round, and mitotic figures were low but neoplastic cells showed a mild invasive tendency to adjacent tissues with contained neoplastic cell emboli in one lymphatic lumen. A diagnosis of a malignant Leydig cell tumor was made. The patient recovered from surgery uneventfully, but his condition worsened despite repeated transfusions and supportive therapy, and he was euthanized according to the owner's decision. Leydig cell tumor should be included in estrogen toxicity associated with testicular mass.