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박노재(No Jae Park),이원우(Won Woo Lee),김덕하(Duck Ha Kim) 대한피부과학회 1990 대한피부과학회지 Vol.28 No.3
A 23-year-old woman had solar urticaria that was activated by visible light and UVA, but the intensity of the urticarial reaction of visible light was more pronounced than that of UVA. The results of passive and reverse passive transfer studies were negative, We report a case of solar urticaria which is characterized by overlapping features of 60th type Il and Il[ in the classification of Harber. (Kor J Dermatol 28(3): 341 344, 1990)
최현민,박노재,Otgonbold Jamiyandorj,홍민호,오승한,박영범,김성태 대한치주과학회 2012 Journal of Periodontal & Implant Science Vol.42 No.5
Purpose: The aim of this study was to evaluate the improvement of osteogenic potential of biphasic calcium phosphate (BCP) bone substitute coated with synthetic cell-binding peptide sequences in a standardized rabbit sinus model. Methods: Standardized 6-mm diameter defects were created bilaterally on the maxillary sinus of ten male New Zealand white rabbits, receiving BCP bone substitute coated with synthetic cell binding peptide sequences on one side (experimental group) and BCP bone substitute without coating (control group) on the other side. Histologic and histomorphometric analysis of bone formation was carried out after a healing period of 4 or 8 weeks. Results: Histological analysis revealed signs of new bone formation in both experimental groups (4- and 8-week healing groups) with a statistically significant increase in bone formation in the 4-week healing group compared to the control group. However, no statistically significant difference in bone formation was found between the 8-week healing group and the control group. Conclusions: This study found that BCP bone substitute coated with synthetic cell-binding peptide sequences enhanced osteoinductive potential in a standardized rabbit sinus model and its effectiveness was greater in the 4-week healing group than in the 8-week healing group.
최현민,박노재,Otgonbold Jamiyandorj,최경희,홍민호,오승한,박영범,김성태 대한치주과학회 2012 Journal of Periodontal & Implant Science Vol.42 No.4
Purpose: The aim of this study was to determine whether biphasic calcium phosphate (BCP) bone substitute with two different concentrations of Escherichia coli-expressed recombinant human bone morphogenetic protein 2 (ErhBMP-2) enhances new bone formation in a standardized rabbit sinus model and to evaluate the concentration-dependent effect of ErhBMP-2. Methods: Standardized, 6-mm diameter defects were made bilaterally on the maxillary sinus of 20 male New Zealand white rabbits. Following removal of the circular bony windows and reflection of the sinus membrane, BCP bone substitute without coating (control group) was applied into one defect and BCP bone substitute coated with ErhBMP-2 (experimental group) was applied into the other defect for each rabbit. The experimental group was divided into 2 subgroups according to the concentration of ErhBMP-2 (0.05 and 0.5 mg/mL). The animals were allowed to heal for either 4 or 8 weeks and sections of the augmented sinus and surrounding bone were analyzed by microcomputed tomography and histologically. Results: Histologic analysis revealed signs of new bone formation in both the control and experimental groups with a statistically significant increase in bone formation in experimental group 1 (0.05 mg/mL ErhBMP-2 coating) after a 4-week healing period. However, no statistically significant difference was found between experimental group 1 and experimental group 2 (0.5 mg/mL ErhBMP-2 coating) in osteoinductive potential (P<0.05). Conclusions: ErhBMP-2 administered using a BCP matrix significantly enhanced osteoinductive potential in a standardized rabbit sinus model. A concentration-dependent response was not found in the present study.
만성 태선양 비강진과 소판 유건선의 임상 및 병리조직학적 비교 관찰
김덕하(Duck Ha Kim),박노재(No Jae Park) 대한피부과학회 1991 大韓皮膚科學會誌 Vol.29 No.1
A clinicopathological study of 12 cases of pityriasis lichenoides chronica and 14 cases of small plaque parapsoriasis was performed. Patients with pityriasis lichenoides chranica ranged in age from 15 to 62 years (mean, 30 years) with male predominance. They had erythematous or reddish scaly papules occuring mostly on both trunk and extremities(92%). The lesions were about the size of r ice grains or small peas. Patients with small plaque parapsoriasis ranged in age from 8 to 67 years(mean, 33 years) and presented yellowish or erythematous scaly maculies and patches comrnonly involving the trunk and extremities(64%). The size of the lesions were larger than those of pityriasis lichenoides chronica. Histopatbologically, the distinct feature of pityriasis lichenoides chronica was vacuolar alteration at the dermoepidermal junction characterizing interface dermatitis. The microscopic findings of small plaque parapsoriasis were, although not as distinct as in pityriasis lichenoides chronica, those af either spongiotic dermatitis or superfirial peri vascula dermatitis. We conclude from this study that these two conditions have different clinical and histologic features and we propose that the term guttate parapsoriasis shauld not be used as a synonym of either pityriasis lichenoides rhronica or small plaque parapsoriasis. (Kor J Dermatol 29(1): 41 49, 1991)