• Journal of Periodontal and Implant Science
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• 제28권3호
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• pp.431-451
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• 1998

4 beagle dogs aged over one and half years and weighed 15 to 16 Kg were utilized in this study. Experimental dehiscent defects were made in the mandibular edentulous area after removal of lower premolar. e-PTFE membrane resorbable membrane, and PDGF-BB-loaded resorbable membrane were covered at the dehiscent defects around the dental implants respectively. Animal was sacrificed at 1, 2, 3 months respectively. Non-decalicifed specimens were made and mutiple-stained for light microscopic study. The results were as follows: 1. Dehiscent defects around the implant installed in the beagle dog were an excellent defect model for studying guided bone regeneration. 2. Fibroblasts penetrated into expanded-PTFE membrane was observed and inflammatory cell infiltration was also observed around the membrane. 3. Resorbable membrane was degradaded and resorbed at 1 month after application to the dehiscent defect. Though multinucleated giant cells were observed adjacent to the membrane, that had no reverse effect on the boe regeneration. 4. PDGF-BB-Ioaded resorbable membrane was same capability as the resorbable membrane and e-PTFE membrane in the guided bone regeneration. 5. PDGF-BB-Ioaded resorbable membrane-applied site was better than resorbable membrane-applied site in the speed and maturity of bone formation. Within the above results, it was suggested that PDGF-BB-Ioaded resorbable membrane might have same bone regeneration capacity as nonresorbable membrane in the dehisced implant of the beagle dog and potentiality to use in human subjects.

• 한국임상수의학회지
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• 제25권5호
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• pp.379-384
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• 2008

The objective of this study was to determine output power for skin incision in 0.3 mm spot diameter $CO_2$ laser by measuring (1) the wound depth, (2) initial dermal tissue damage, (3) degree of wound healing at different power (4W, 5W and 6W) in beagle dogs. Three healthy 2-year-old beagle dogs were used. Four 2 cm straight skin incisions were made with 0.3 mm spot diameter $CO_2$ laser on the each dog's both side of dorsal midline in three beagle dogs. The skin incisions were performed for $10{\sim}15$ seconds for same dosage. And then each wound was closed with surgical stapler. At 0, 3, 7 and 14 days after initial wounding, each wound was taken for histological observation. On macroscopic and microscopic observation, initial incisional wound did not show difference in three group. And also re-epithelialization, dermal tissue damage and inflammatory response did not show significant difference among groups. This study reveals that 4W, 5W and 6W may be suitable output power in 0.3 mm spot diameter $CO_2$ laser for the skin incision in beagle dogs.

• Biomolecules & Therapeutics
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• 제4권4호
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• pp.323-329
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• 1996

A recombinant human erythropoietin (rHu-EPO), was administered intravenously to beagle dogs at doses of 100, 500 and 2, 500IU/kg/day for 30 days. There were no significant clinical signs such as body weight, food intake, physical and opthalmic examination, urine analysis, etc. Any toxic response was not observed except for enlarged spleen and extramedullary hematopoiesis. No observed adverse effect level (NOAEL) of rHu-EPO for 30 days was considered to be 100IU/kg/day in beagle dogs.

• Biomolecules & Therapeutics
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• 제6권3호
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• pp.317-327
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• 1998

The subchronic toxicity study of rHuEPO, a newly developed recombinant erythropoietin, was investigated for 13 weeks in Beagle dogs intravenously treated with doses of 100, 500 and 2,500 lU/kg/day. There were no significant changes in body weight, food intake, physical and opthalmic examination, urine analysis, etc. Any toxic response was not observed except for enlarged spleen and extramedullary hematopoiesis. These results indicate that the no-observed adverse effect level (NOAEL) of rHuEPO is 100 lU/kg in Beagle dogs.

• Toxicological Research
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• 제17권4호
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• pp.297-301
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• 2001

The acute toxicity of CJ-50005, an inactivated whole virus vaccine derived from hepatitis A virus (HM175) grown in human MRC-5 diploid fibroblast culture, was tested in Sprague Dawley (SD) rats and beagle dogs. CJ-50005 was orally and intramuscularly administered up to the maximum dose of 81$\mu\textrm{g}$/kg. as much as 3,000 times of the expected clinical dose, in SD rats and was intramuscularly administered up to 27 $\mu\textrm{g}$/kg, as much as 1,000 times of the expected clinical dose, in beagle dogs. In these experiments, there were no death and clinical changes which were related to CJ-50005 administration. In addition, there were no significant changes between control and treated groups in body weights and autopsy findings. In conclusion, the administration of CJ-50005 over 81$\mu\textrm{g}$/kg in SD rats and over 27$\mu\textrm{g}$/kg in beagle dogs was proved to be safe, and it is thought that CJ-50005 may not show any toxicity in its clinical use.

• Journal of Periodontal and Implant Science
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• 제32권4호
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• pp.847-855
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• 2002

It has been reported that Magnoliae cortex extract has antibacterial and antimicrobial activity against pathogenic microbes and Zea Mays L. extract is effective for improving gingival tissue health. The purpose of this study was to examine the anti-inflammatory and antimicrobial effects of Zea Mays L. and Magnoliac cortex extract mixtures through experimental peridontitis induced beagle dog model. Nine beagle dogs with experimentally induced periodontitis were selected. Baseline clinical indices which includes plaque index, gingival index, probing pocket depth, clinical attachment level, gingival fluid flow rate were recorded and microbial assays were done. Magnoliac cortex and Zea Mays L., mixed at 2:l ratio in 105mg capsular dosage, were taken by 3 capsule (Group I) or 6 capsule dosages (Group II) three times a day. After 4,8,12 weeks, clinical indices were recorded. All data of clinical indices were compared through one-way ANOVA with 95% confidence level. Clinical indices of group I and II showed significantly better results than those of control group. There were no significant differences between group I and II. In conclusion, it was confirmed that mixture of Magnoliae cortex and Zea May L. (mix ratio 2:1) possessed clinical improving effects to periodontitis.

• Journal of Periodontal and Implant Science
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• 제27권1호
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• pp.91-109
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• 1997

본 연구에서는 악골에 식립된 순수한 타이타늄 임프란트와 타이타늄 플라즈마 처리된 타이타 늄 임프란트 및 수산화인회석으로 피막처리된 타이타늄 임프란트의 주위 골조직을 광학현미경 과 주사전자현미경을 이용하여 비교 관찾히였다. 3 마리의 beagle dog 에서 상하악 소구치를 편측으로 발거한 후 12 주의 치유기를 거쳐 임프란트 를 식립하였으며, 임프란트 식립 후 4주, 8주 및 12주에 실험동물을 각각 희생시켜서 조직 표본을 제작하였다. 임프란트 주위의 골조직에서 염증이나 이물반응은 관찰되지 않았으며, 정상적인 악골에서와 유사한 골조직 소견이 관찰되었다 상악골 및 하악골에 식립된 모든 임프란트의 4주 표본에서, 골과 임프란트 변의 직접적인 접촉이 관찰되었다. 동일한 치유기에서는, 상악골에 식립된 임프란트의 면에 비하여 하악골에 식립된 동종의 임프란트의 변에서 더 많은 양의 골접촉이 관찰되었으며, 순수한 타이타늄 임프란트의 면에 비하여 피막처리된 타이따늄 임프란트의 변에서 더 많은 양의 골접촉이 관찰되었다.

• 한국임상수의학회지
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• 제31권6호
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• pp.535-538
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• 2014

8년령의 수컷 비글견이 이틀 동안 식욕 부진, 구토, 기력 저하를 주증으로 내원하였다. 혈액학적 검사에서 경등도의 질소혈증과 심각한 저알부민혈증, 뇨 검사에서 심각한 단백뇨가 관찰되었다. 복부 초음파 검사에서 양쪽 신장의 크기가 증가하고 미만성 고에코의 피질이 두드러지게 관찰되었다. 신장 생검과 조직 검사 결과 신장 아밀로이드증으로 확진되었다. 3 개월 동안 환자는 적극적인 내과적 관리를 받았고, 보호자는 환자의 삶의 질에 만족하였다. 이후 심각한 질소혈증과 콩팥증후군이 발생하여 안락사가 실시되었다.

• Toxicological Research
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• 제13권4호
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• pp.449-460
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• 1997

Single and 4 weeks oral administration of l-muscone, a major active ingredient of musk, to beagle dogs of both sexes were performed to investigate both acute and subacute toxicity. Beagle dogs(3 males and 3 females) in acute experiments were administered orally with single dosage of 2,000 mg/kg and groups of 9 male and 9 female beagle dogs in subacute experiments were given daily different dosage of l-muscone, 0.2 mg/kg/day(low dosage group), 2 mg/kg/day(middle dosage group), or 20 mg/kg/day(high dosage group) once a day for 4 weeks by oral route according to the Established Regulation of Korean Food and Drug Administration(1996.4.16). $LD_{50}$ value for beagle dogs was more than 2,000 mg/kg on oral route for both male and females. In animals administered with l-muscone, there were neither dead animals nor significant changes of body weights. In addition, no differences were found between control and treated groups in clinical signs, urinalysis, eye examination, hematology, serum chemistry, organ weight and other findings. No histolopathological lesions were observed in both control and treatment groups. Above data strongly suggest that l-muscone in beagle dogs is considered to be safe.

• 한국한의학연구원논문집
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• 제9권2호
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• pp.95-105
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• 2003

Kami-honghwa-tang(KH-19) is a prescription for reducing the side effect of radiotherapy. In this study, safety of KH-19 was evaluated by GLP guideline of Korea Food and Drug Administration. In acute oral toxicity study on rat, transient inhibition of weight increase was shown, but change in general symptom was not detected. No dead animal was observed up to 5,000 mg/kg in both male and female animals. In acute oral toxicity study on Beagle dog, transient vomiting, diarrhea, anorexia, and weight reduction was observed. However, no dead animal was observed up to 2,000 mg/kg in both male and female animals.