Structural and functional investigation of the α and β domain fusion in glycerol dehydratase that reduces the oxygen and glycerol inactivation rate

나채영,유태현,( Nasir Abdul ) 한국공업화학회 2022 한국공업화학회 연구논문 초록집 Vol.2022 No.-

하악과두에 발생된 연골종

나채영,최갑식,신홍인 慶北大學校 齒科大學 1992 慶北齒大論文集 Vol.9 No.1

저자들은 우측 악관절부의 지속적인 둔통과 불편감을 주소로 경북대학교 병원 치과에 내원한 32세 남자 환자에서 임상·방사선학적 검사와 조직병리학적 검사를 통해 하악과두에 발생된 외연골종으로 진단하고 아래와 같은 사항을 관찰하였다. 1. 임상적으로 우측 관절부에 둔통을 동반한 종창과 개구제한 및 관절잡음이 있었다. 2. 방사선학적으로 악관절 측방 단층 X선사진상에서 우측 하악과두의 피질골상에 반월형의 침습과 경화가 나타났고, 전산화 단층 X선사진상에서는 경계가 분명한 연조직괴가 관찰되었다. 3. 조직병리학적으로 불규칙하게 증식된 연골세포들은 특기할 형태적 변화없이 초자양 연골기질내에 군집되었으며 골화양상없이 국소적인 석회화가 관찰되었다. The chondroma, a benign tumor made up of mature hyaline cartilage, is uncommon in the bones of the maxilla and mandible. The authors report a case of periosteal chondroma arising on the right mandibular condyle neck in 32-year-old male with review of literature. The clinical, radiographic, and microscopic findings were as follows: 1. The patient complained of continuous dull pain and swelling on the right mandibular condyle area for 3 years. 2. Radiographically, semilunar-shaped erosion with marginal sclerosis was evident on the cortical bone of right mandibular condyle. The computed tomograph also revealed well-defined soft tissue mass at the same area. 3. Microscopically, this lesion was composed of mature lobules of hyaline cartilage. The proliferated small chondrocytes arranged into clusters without atypia revealed focal calcification.

Structural based Investigation of the α and β Domain Fusion in Glycerol Dehydratase that Reduces the Oxygen and Glycerol Inactivation Rate

나채영,이수현,유태현 한국공업화학회 2022 한국공업화학회 연구논문 초록집 Vol.2022 No.1

하악 제1대구치와 소구치의 과잉치근에 관한 방사선학적 연구

박미경,최갑식,나채영 大韓口腔顎顔面 放射線學會 1993 Imaging Science in Dentistry Vol.23 No.1

The purpose of this study was to evaluate the prevalence and distribution of additional root in the mandibular 1st molars and premolars by means of the analysis of the full mouth periapical radiographs in 6,082 patients visited the Dental Infirmary of Kyungpook National University Hospital from March 1989 to February 1993. The results were as follows: 1. The incidence of additional root in the mandibular 1st molars was revealed to be 9.32% in total examined patients, and there was a higher prevalence in males(11.35%) than in females(7.46%). And bilateral occurrence was revealed to be 4.26%. 2. The incidence of additional root in the mandibular premolars was to be 3.57% in total examined patients, and there was a higher prevalence in males(4.28%) than in females(2.91%), And bilateral occurrence in the 1st premolars was revealed to be 1.53%.

함치성낭종과 단방성 법랑모세포종의 감별에 관한 방사선학적 연구

나채영,최갑식 大韓口腔顎顔面 放射線學會 1993 Imaging Science in Dentistry Vol.23 No.2

The purpose of this study was to obtain some informations for the radiographic differential diagnosis between dentigerous cysts and unicystic ameloblastomas in the mandible. The authors observed and compared the clinico-radiographic features of 38 cases of dentigerous cyst and 32 cases of unicystic ameloblastoma associated with impacted mandibular molar. The obtained results were as follows: Dentigerous cysts occurred the most frequently in the 3rd decade, but unicystic ameloblastomas in the 2nd decade, and both lesions occurred with slight predilection in males. Average of lesional size of unicystic ameloblastomas was larger than that of dentigerous cysts, and lesions of over 25㎠ were only in unicystic ameloblastomas. Cortical thinning and expansion were more frequently observed in unicystic ameloblastomas at 72.9% than in dentigerous cysts at 15.8%. Dentigerous cysts showed smooth border at 89.5%, but unicystic ameloblastomas showed smooth border at 53.1% and scalloped border at 46.9%. Dentigerous cysts showed well-defined outline at 81.6%, but unicystic ameloblastomas showed well-defined outline at 53.1% and moderate-defined outline at 46.9%. In both lesions, the mandibular 3rd molar was the most frequent causative tooth. Average of distance between the cemento-enamel junction and lesional wall attachment of the causative tooth was longer in unicystic ameloblastomas than in dentigerous cysts. Severe displacement of causative tooth was more frequent in unicystic ameloblastomas at 62.5% than in dentigerous cysts at 23.7%. Dentigerous cysts showed homogeneous lesional radiolucency at 89.5%, but unicystic ameloblastomas showed inhomogeneous lesional radiolucency at 53.1%. Root resorption of adjacent tooth and displacement of mandibular canal were more frequent in unicystic ameloblastomas at 65.2% and 61.5% than in dentigerous cysts at 15.8% and 38.1% respectively.

부분적 무치아증 : 다수 치아의 선천성 결손 Congenitally multiple teeth missing

박상억,나채영,최갑식 慶北大學校 齒科大學 1992 慶北齒大論文集 Vol.9 No.1

1984년에서 1991년까지 경북대 병원 치과에 내원하여 파노라마 방사선사진을 촬영한 환자들 중 선천성 결손치의 수가 4개 이상인 부분적 무치아증 환자 44명(남자 22명, 여자 22명)에서 나타난 401개의 선천성 결손치를 조사분석하여 다음의 결과를 얻었다. 1. 결손치의 수는 4개에서 22개로 다양하였으며 5개의 치아가 결손된 경우가 8증례로 가장 많았다. 2. 각 치아별 호발빈도는 상악 제2소구치, 하악 제2소구치, 상악 측절치, 하악 제1소구치순이었다. 3. 결손치가 양측성으로 발생한 경우는 약 60∼70%였다. 4. 치열의 4 quardrant 모두에서 결손된 치아는 제2소구치가 가장 많았다. The expression of congenitally missing teeth may range from one or a few missing teeth(hypodontia) to the agenesis of numerous teeth(oligodontia) to the failure of all the teeth to develop(anodontia), but clinically the term of oligodontia means four or more congenitally missing teeth in dentition. The authors observed 44 patients of oligodontia cases especially having four or more missing teeth who came to the Dental Infirmary of Kyungpook National University Hospital. In this study, all of 44 patients represented congenitally missing teeth bilaterally. Thirty-eight patients represented that missing teeth were found bilaterally in both jaws, but only four patients in the upper jaw and two patients in the lower jaw. And the maxillary second premolar was absent most frequently, followed by the mandibular second premolar, the maxillary lateral incisor, the maxillary first premolar, in descending order of frequency.

Structural and Functional Investigation of the Linker-based Fusion in Glycerol Dehydratase that Increases the Oxygen Inacitvation Resistance

김민주,나채영,유태현 한국공업화학회 2023 한국공업화학회 연구논문 초록집 Vol.2023 No.0

Engineering glycerol dehydratase variants for improved resistance to inactivation

최선주,나채영,유태현 한국공업화학회 2023 한국공업화학회 연구논문 초록집 Vol.2023 No.1

증류수 혹은 0.25N NaClO2 에서 가열한 볏짚의 구성분의 변화와 가금에서의 영양소이용성

고태송,김해수,김성규,나채영 ( Tae Song Koh,Hae Soo Kim,Sung Gyu Kim,Chae Young Ra ) 한국축산학회 1985 한국축산학회지 Vol.27 No.12

In order to observe an effect of the components of rice straw on the utilization of nutrient in chicks, 100 g batches of rice straw were soaked in 800 ㎖ of either distilled water or 0.25N NaC10₂ and then autoclaved for 30, 60 and 120 minutes at the temperature of 135℃ and at the pressure of 3.2㎏/㎠(water or NaC10₂-30, 60 and 120-RS). Neutral detergent fiber(NDF), acid detergent fiber(ADF) and lignin of the washed and dried rice straw meal were analyzed. Hatched single comb White Leghrn male chicks were fed on a commercial chick mash for the first 10 days and five kinds of experimental diets which contained 17.0% of wheat bran(basal), cellulose(cotton meal), non-treated RS, water-30-RS and NaC10₂-30-RS, respectively, for the next 8 days. The water-30, 60 and 120-RS had lost 9.7, 12.1 and 13.3% of dry matter, respectively, while NaC10₂-30-RS had shown similar dry matter loss to those of water-30-RS though NaC10₂-60 and 120-RS had lost 1.5 times of dry matter compared with those of water-60 and 120-RS, respectively. And the dry matter loss of the water-RS or NaC10₂-RS was mainly originated from the extractable cell contents and hemicellulose of the non-treated RS. Birds fed water-30-RS diets showed higher body weight gain and lower feed conversion than those of birds fed non-treated and NaC10₂-30-RS diets during 8 days of experimental feeding. Also nitrogen balance and retention rate of birds fed water-30-RS was higher compared with those of birds fed non-treated and NaC10₂-30-RS. And digestibility of crude fat tended to be high in birds fed water-30-RS. The rate of metabolizable energy(MEn) to gross energy(GE) of birds fed non-treated RS, water-30-RS and NaC10₂-30-RS diets were 71.9, 72.9 and 70.4%, respectively, and energy intake per metabolic body size ㎏^(0.75)) were reached to 307.3, 296.2 and 291.4 ㎉ per day, respectively. And daily protein retention per ㎏^(0.75) were 1.647, 1.969 and 1.560 g, respectively. The MEn required for 1 g of protein retention was 30.56 ㎉ in the bird fed water-30-RS, which was lower than 36.90 and 37.56 ㎉ of birds fed non-treated and NaC10-30-RS, respectively. The results seems to indicate that non-treated rice straw had a substance or characters which affect the energy utilization or protein retention of diets and which will be eliminated by boiling in water.