세가지 다른 인레이 와동 형태가 CEREC3 CAD/CAM의 변연 및 내면 간극에 미치는 영향

서덕규,이영아,이윤,노병덕 大韓齒科保存學會 2009 Restorative Dentistry & Endodontics Vol.34 No.3

이 연구의 목적은 세가지 다른 치아 삭제 형태에 따라 제작된 CEREC3 CAD/CAM의 인레이의 변연 및 내면 간극을 비교 평가하는 것이었다. CEREC3 인레이의 제작을 위해 다음의 제시된 방법에 따라 각 군당 10개의 시편을 준비하였다. 제Ⅰ군-기능 교두를 포함하는 전통적 방식의 capping과 shoulder margin, 제 Ⅱ군-교두를 수평으로 평평하게 삭제하는 단순화된 와동 형태, 제Ⅲ군-교두의 완전한 삭제와 shoulder margin을 갖는 가장 단순화된 형태로 세 군의 시편을 제작하였다. CEREC3로부터 제작된 인레이를 대응치아에 접착시킨 후, 치아 교합면의 중심을 지나게 협설면 방향으로 microsaw를 이용하여 절단하였다. 이후 Stereomicroscope을 사용하여 20배율에서 확대 영상을 촬영하였다. 그리고 미리 정해놓은 marginal, axial, angle, horizontal 기준점에서 Leica application suite 프로그램을 사용하여 시편과 치아 사이의 변연 및 내면 간극을 측정하였다. 일원분산분석을 사용하여 같은 기준 지점에서 세 군 사이의 차이를 분석하였으며, 각 군 안에서 여러 지점 사이의 차이 또한 알아보았다. Tukey's test로 95% 유의수준에서 사후 검정하였다. 세 군 모두에서 변연 부위에서 간극이 가장 작았으며, 변연 간극은 제Ⅰ군 80.0-97.8㎛, 제Ⅱ군 42.0-194.8㎛, 제Ⅲ군 51.0-80.2㎛의 범위를 나타내었다. 내면 간극은 제Ⅰ군 90.5-304.1㎛, 제Ⅱ군 80.0-274.8㎛, 제Ⅲ군 79.7-296.7㎛의 범위를 나타냈고 horizontal wall 부위에서 가장 큰 간극을 보였다. CEREC3 CAD/CAM시스템을 사용한 인레이 제작에 있어서 새롭게 제안된 두 가지의 단순화된 와동 형태는 변연 및 내면 간극이 전통적인 교두 피개 와동 형태보다 우수하지 않았다. The aim of this study was to evaluate the marginal and internal gaps in CEREC3 CAD/CAM inlays of three different preparation designs. CEREC3 Inlays of three different preparation designs (n = 10) were fabricated according to Group Ⅰ-conventional functional cusp capping/shoulder preparation, Group Ⅱ-horizontal reduction of cusps and Group Ⅲ-complete reduction of cusps/shoulder preparation. After cementation of inlays, the bucco-lingual cross section was performed through the center of tooth. Cross section images of 20 magnifications were obtained through the stereomicroscope. The gaps were measured using the Leica ap plication suite software at each reference point. Statistical analysis was performed using one-way ANOVA and Tukey's test(α < 0.05). The marginal gaps ranged from 80.0 to 97.8 ㎛ for Group Ⅰ, 42.0 to 194.8 ㎛ for Group Ⅱ, 51.0 to 80.2 ㎛ for Group Ⅲ. The internal gaps ranged from 90.5 to 304.1 ㎛ for Group Ⅰ, 80.0 to 274.8 ㎛ for Group Ⅱ, 79.7 to 296.7 ㎛ for Group Ⅲ. The gaps of each group were the smallest on the margin and the largest on the horizontal wall. For the CEREC3 CAD/CAM inlays, the simplified designs(groups Ⅱ and Ⅲ) did not demonstrate superior results compared to the traditional cusp capping design (group I).

열공성 뇌경색과 뇌내출혈의 위험인자 비교

이장준,이현아,최종환,이형,임정근,이상도,박영춘 계명대학교 의과학연구소 2000 계명의대학술지 Vol.19 No.2

Cerebral small vessel disease is the most important cause of lacunar infarction (LI) and intracerebral hemorrhage (ICH). It is generally postulated that, in its early stages, the vascular lesion engenders vessel wall fragility and ICH. But if rupture dose not occur, segmental vessel occlusion evolves, producing LI. It may be a common aging phenomenon that is exacerbated by hypertension and diabetes mellitus. This study was performed to evaluate risk factors of LI and ICH. We reviewed retrospectively the medical records of 690 patients (254 LI, 436 ICH) with stroke who were admitted to Keimyung University Dongsan Medical Center from January 1995 to December 1998. The major risk factors including age, sex, hypertension, diabetes mellitus and several minor risk factors were analyzed in these patients. Older age (p<0.01), male sex(p<0.01), hypertension with treatment(p<0.01), hypertension with long duration(p<0.01) and hypertriglyceridemia(p<0.01), cigarette smoking(p<0.01) were significantly more frequent in LI. Younger age(p<0.01), female sex(p<0.01) and hypertension without treatment(p<0.01), hypertension with short duration(p<0.01) were more frequent in ICH. The prevalence, duration and treatment of diabetes mellitus were not different between these two groups. This study show that the age, sex, treatment of hypertension, duration of hypertension and cigarette smoking seem to be significant risk factors between LI and ICH.

Ex-situ Conservation of Horticultural Plant Genetic Resources in Genebank of Korea, National Agrobiodiversity Center

Young-Yi Lee,Gyu-Taek Cho,Ho-Cheol Ko,Ho-Sun Lee,Young-Ah Jeon,Jung-Sook Sung,Sok-Young Lee,Chang-Yung Kim,Yeon-Gyu Kim 한국육종학회 2012 한국육종학회 심포지엄 Vol.2012 No.07

The world-wide capacity of genebanks for ex-situ conservation of crop genetic resources has increased greatly since the 1970s, improving the access of crop breeders to landraces, and wild relatives (Wright, 1997). In south Korea, systematic seed germplasm management was begun at the Rural Development Administration (RDA) in 1985 and consequently genebank system was established in 1988. The RDA genebank, National Agrobiodiversity Center (NAC) of south Korea, preserve 173,217 accessions of plant seed germplasm and 10.7% (18,509 accessions) of whole preserved germplasm is occupied by horticultral PGR by 2011. Horticultural PGR preserved in NAC is composed with 67 genera of crops including pepper (3,817 accessions), tomato (2,040 accessions), cabbages (1,690 accessions) and etc. According to horticultural plant sub-group, fruit-vegetable is the biggest group with 60% of accession share and leafy vegetable (19%), root vegetable (10%), bulb vegetable (8%), and ornamental (3%) follow subsequently. In aspect of PGR status, landrace is dominant part of conserved accession and then developed cultivar, wild relatives, cultivated material, wild, and weedy type follow subsequently. Recently characterization and evaluation of horticultural PGR have been activated for 3 years in NAC, which are useful for breeders and users focused on disease-resistance or active ingredient. It will promote utilization of horticultural PGR and development of horticultural crop breeding program for both human being and sustainable agriculture in near future.

Investigation on Germination and Fatty Acid of Castor Bean (Ricinus communis L.) Seeds after Liquid Nitrogen Exposure

Young Yi Lee,Ho Sun Lee,Young Ah Jeon,Jung Yoon Yi,Do Kyun Seo,Jung Sook Sung,Myung Cheol Lee,Sok Yung Lee 한국원예학회 2013 한국원예학회 학술발표요지 Vol.2013 No.10

Recovering Viability After Cryopreservation of Lettuce Seed with Variable Seed Moisture Contents

Young-yi Lee,Sherzod Rajametov,Jae-gyun Gwak,Young-ah Jeon,Jung-yoon Yi,Sokyoung Lee 한국원예학회 2015 한국원예학회 학술발표요지 Vol.2015 No.10

RESEARCH ARTICLES : Incidence, Molecular Characteristics and Pathogenicity of Gibberella fujikuroi Species Complex Associated with Rice Seeds from Asian Countries

( Young Ah Jeon ),( Seung Hun Yu ),( Young Yi Lee ),( Hong Jae Park ),( Sokyoung Lee ),( Jung Sook Sung ),( Yeon Gyu Kim ),( Ho Sun Lee ) 한국균학회 2013 Mycobiology Vol.41 No.4

Gibberella fujikuroi species complex (GFSC) was isolated from rice (Oryza sativa L.) seed samples from ten Asian countries and investigated for incidence of GFSC, molecular characteristics, and pathogenicity. Regardless of geographic origin, GFSC was detected with incidences ranging from 3% to 80%. Four species, Fusarium fujikuroi, F. concentricum, F. proliferatum, and F. verticillioides, were found to show an association with rice seeds, with F. fujikuroi being the predominant species. In phylogenetic analyses of DNA sequences, no relationship was found between species, isolates, and geographic sources of samples. Unidentified fragments of the β-tubulin gene were observed in ten isolates of F. fujikuroi and F. verticillioides. With the exception of three isolates of F. fujikuroi, F. fujikuroi, F. proliferatum, and F. verticillioides were found to have FUM1 (the fumonisin biosynthetic gene); however, FUM1 was not found in isolates of F. concentricum. Results of pathogenicity testing showed that all isolates caused reduced germination of rice seed. In addition, F. fujikuroi and F. concentricum caused typical symptoms of bakanae, leaf elongation and chlorosis, whereas F. proliferatum and F. verticillioides only caused stunting of seedlings. These findings provide insight into the characteristics of GFSC associated with rice seeds and might be helpful in development of strategies for management of bakanae.

A nationwide cohort study on coronavirus disease 2019 and patients with psoriasis in Korea

( Young Ah Cho ),( Yi Na Yoon ),( Jae Young Sung ),( Hyung Seok Son ),( Chang Yong Kim ),( Ji Su Lee ),( Sung Min Kim ),( Da Ae Yu ),( Yang Won Lee ),( Yong Beom Choe ) 대한피부과학회 2022 대한피부과학회 학술발표대회집 Vol.74 No.1

A case of amyloidosis treated with minocycline

( Young Ah Cho ),( Yi Na Yoon ),( Jae Young Sung ),( Hyung Seok Son ),( Chang Yong Kim ),( Ji Su Lee ),( Sung Min Kim ),( Da Ae Yu ),( Yang Won Lee ),( Yong Beom Choe ) 대한피부과학회 2022 대한피부과학회 학술발표대회집 Vol.73 No.2

연구보문 : 케냐의 식물유전자원 관리현황 분석

전영아 ( Young Ah Jeon ),김정곤 ( Cheong Kon Kim ),백형진 ( Hyung Jin Baek ),이정윤 ( Jung Yoon Yi ),이명철 ( Myung Chul Lee ),성정숙 ( Jung Sook Sung ),조규택 ( Gyu Taek Cho ),이석영 ( Sok Young Lee ),박홍재 ( Hong Jae Park ) 한국국제농업개발학회 2011 韓國國際農業開發學會誌 Vol.23 No.2

케냐는 열대지방에 위치하고 있지만 기후대가 고산지역, 해안지역, 열대평야지역, 사막지역으로 분포하고 있어 생물다양성이 풍부한 국가이다. 생물다양성확보와 유전자원의 안전보존을 위해서 종자은행을 설립하여 운영하고 있다. 케냐종자은 행의 정식명칭은 National Genebank of Kenya(NGBK)이고, 1988년 독일의 Technical Development Agency의 지원으로 식물 다양성보존, 식물유전자원 보존 활용을 위한 기술개발을 할 목적으로 설립하였다. 케냐 종자은행 주요연구 사업은 식물유전자원을 탐색, 수집하고, 종자생리 및 보존연구, 식물유전자원의 증식 및 특성평가, 정보화 사업이다. 케냐는 아프리카에서 비교적 많은 유전자원을 확보하여 안전하게 보존하고 있다. 케냐의 유전자원 관리현황과 도입가능성을 검토하여 아프리카 유전자원 도입 전초기지로 활용하여 유전자원 강국 기반을 구축하는데 기여하고자 분석하였다. 케냐 유전자원은행에 보존된 자원은 2009년말 현재 1,982종 48,041점을 알루미늄팩을 사용하여 저장 중이고(그림4), 그중 예산 부족으로 인하여 약40%에 대해서 기초특성조사를 완료하였으나, 60%는 기초특성조사를 실시 중에 있었다. 우리나라가 식물 종자자원이 165천여점에 1,777종을 보유하고 있지만, 케냐는 비록 식물유전자원이 48,041점으로 우리의 1/3도 되지 않지만 1982종을 보유하고 있어 종 다양성에서는 우리를 앞서고 있다. 케냐 보유 유전자원 도입과 아프리카 원산 자원의 수집 및 도입을 위해서는 케냐 종자은행 관계자가 요청한 국제협력연구가 요구된다. 케냐는 한국 벼의 도입과 분자생물학적 특성 평가에 대한 관심을 표명하면서 단계적인 유적자원 협력연구를 제안하였다. 케냐와 협력 연구를 통해서 상호 활발한 교류가 있으면 우리가 원하는 유전자원 도입이 가능할 뿐만 아니라 유전자원 안전중복보존소 기능을 이용하여 케냐 식물유전자원을 우리나라에 보존할 수 있을 것이다. Plant genetic resources is a very important as breeding materials, and extracts of functional and medicinary plants for human. Kenya that is composed of alpine, costal and desert area in eastnorth Africa may be abundant biodiversity in plant genetic resources. It had established national genebank of Kenya(NGBK) that is supported by technical development agency of Germany in 1988 to do conservation and utilization of plant genetic resources as well as a maintenance of biodiversity. The NGBK genebank has conserved more than 1,900 species and 48,000 accessions including food crops that are rice, wheat, barley, and cow pea, horticultural and fodder crops, introduced and collected germplasms in Africa. Phenotypic characterization have been evaluated in only about 40% of germplasms. The passport data in kenya consists of accession number, scientific name, collection area, donation number. To introduce a plant genetic resources from NGBK, it should need to conduct cooperative research between Korea and Kenya on characterization including molecular biotechnology.

An unusual de novo duplication 10p/deletion 10q syndrome

Bom-Yi Lee,Ju-Yeon Park,Yeon-Woo Lee,Ah-Rum Oh,Shin-Young Lee,Eun-Young Choi,Moon-Young Kim,Hyun-Mee Ryu,So-Yeon Park 대한의학유전학회 2015 대한의학유전학회지 Vol.12 No.1

We herein report an analysis of a female baby with a de novo dup(10p)/del(10q) chromosomal aberration. A prenatal cytogenetic analysis was performed owing to abnormal ultrasound findings including a choroid plexus cyst, prominent cisterna magna, and a slightly medially displaced stomach. The fetal karyotype showed additional material attached to the terminal region of chromosome 10q. Parental karyotypes were both normal. At birth, the baby showed hypotonia, upslanting palpebral fissures, a nodular back mass, respiratory distress, neonatal jaundice and a suspicious polycystic kidney. We ascertained that the karyotype of the baby was 46,XX,der(10)(pter→q26.3::p11.2→pter) by cytogenetic and molecular cytogenetic analyses including high resolution GTG-and RBG-banding, fluorescence in situ hybridization, comparative genomic hybridization, and short tandem repeat marker analyses. While almost all reported cases of 10p duplication originated from one of the parents with a pericentric inversion, our case is extraordinarily rare as the de novo dup(10p)/ del(10q) presumably originated from a rearrangement at the premeiotic stage of the parental germ cell or from parental germline mosaicism.