단세포군 항체를 이용한 Chlamydia trachomatis의 면역형 결정

윤규석,김덕언,최태열 대한감염학회 1993 감염 Vol.25 No.1

An immunotyping of 27 strains of Chlamydia trachomatis isolated from patients with non-gonococcal urethritis or pelvic inflammatory diseases in Korea was achieved in dot-enzyme linked immunosorbent assay (dot-ELISA) with monoclonal antibodies. Monoclonal antibodies were produced with standard techniques by immunization of Balb/c mice and fusion with SP 2/0 myeloma cell. Seven type-specific (D,E,F,H,I,J,L₂), 2 subspecies-specific (B-complex, C-complex) and species-specific (HMC 1-1) monoclonal antibodies were used for immunotyping. Immunotyping of 12 control strains and 27 clinical strains isolated in Korea was studied by using dot-ELISA. Species-specific (HMC 1-1) monoclonal antibody reacted with all control strains and 27 isolated. Subspecies-specific (B-complex) monoclonal antibody reacted with B/HAR-36, Ba/Aphach-2, D/UW-3Cx, E/Bour, LGV type Ⅰ/440, LGV type Ⅱ/CDC control strains and 19 isolates. Type-specific monoclonal antibody of D was reacted with D/UW-3/Cx control strain and 10 isolates. E type-specific monoclonal antibody racted with E/Bour control strain and 6 isolates. F type-specific monoclonal antibody reacted with 5 isolates. Three isolates which racted with subspecies-specific monoclonal antibody didn't react with any type-specific monoclonal antibodies. Subspecies-specific (C-complex) monoclonal antibody reated with A/HAR-13, C/CDC, H/UW-43/Cx, J/UW-36/Cx control strains and 2 clinical isolates, but the isolates did not react with any type-specific monoclonal antibodies. One of 27 clinical isolates reacted with any type-specific monoclonal antibodies. One of 27 isolates reacted with species-specific (HMC 1-1) monoclonal antibody didn't react with any other subspecies-and type-specific monoclonal antibodies. In conclusion, the major immunotypes of C.trachomatis from urogenital system in Korea were D, E and F, and dot-ELISA with monoclonal antibody may contribute for immunotyping as a simple and specific technique.

SnSe₂박막의 광학적 특성

尹昌先,金炳鎬,車德濬 群山大學校 1985 論文集 Vol.11 No.-

Optical absorption of flash-evaporated SnSe₂ thin films has been observed in range from 200 to 900 mm. From absorption spectra, a threshold for indirect phonon-assisted transitions was found to occur at 0.96±0.02 eV. The structure of amorphous SnSe₂ thin films has studied by X-ray and thermal analysis. Photoconductivity data for SnSe₂ thin films are also presented.

GaSe 박막의 광흡수 특성

윤창선,차덕준 群山大學校自然科學硏究所 1986 自然科學硏究 Vol.1 No.-

The optical absorption edges of flash-evaporated GaSe thin films are studied near the fundamental edge. Measurements of GaSe thin films annealed at various temperatures and having different thickness are analysed and discussed in terms of the optical energy gap. The annealing has the effect of increasing the values of the optical energy gap.

퍼머제의 중금속 농도에 관한 연구

윤복연,문덕환,박명희,황용식,함성애,손병철,김대환,이창희,김휘동,이채언 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.5

Objective : This study was conducted to prepare the fundamental data on heavy metal concentration in hair permanents agents and to prevent the health impairment due to heavy metal. Methods and Material : The author determined of 5 heavy metals(Pb, Cr, Mn, Ni, and Cu) concentration hair permanent agents in the market with flameless atomic absorption spectrophotometer. Results : The results were as follows: 1. The geometic mean concentrations of total subjects were 0.04㎍/g for Pb, 0.09㎍/g for Cr, 0.06㎍/g for Mn, 0.03㎍/g for Ni, and 0.04㎍/g for Cu. 2. The most highest mean concentrations of heavy metals in hair permanent agents by using type were Cr for wave agent and straight cream agent, Cu for setting iron agent, Cr and Cu for coating perm agent. 3. Metal most hlghest mean concentrations of heavy in hair permanent agents by type of color was green for Cu. 4. The mean concentration of Cu among 5 heavy metals in hair permanent agents by marker was most highest. 5. There was most statistically significant difference on mean concentration in hair permanent agents between domestic and foreign products. 6. The exposure amount of heavy metal concentration by one time using the permanent agent were 4.O㎍ for Pb, 9.O㎍ for Cr, 6.0㎍ for Mn, 3.O㎍ for Ni and 4.0㎍ for Cu. Conclusion : As above results author suggest to prepare the preventive program of health impairment due to heavy metal by long term chronic exposure to who were using the hair permanent agents hair designer and customers.

새롭게 조명되는 골흡수억제제 : Bisphosphonate

김덕윤 대한골대사학회 1996 대한골대사학회지 Vol.3 No.1

폐경기 증후군 환자에서 Cyclofenil의 치료 효과

김덕윤,고은미,우정택,양인명,김진우,김영설,김광원,최영길 최신의학사 1992 最新醫學 Vol.35 No.10

CdO-B₂O₃-GeO₂계 유리의 특성연구 (I)

車德濬,尹昌先,金炳鎬 群山大學校 1985 論文集 Vol.11 No.-

CdO-B₂O₃-GeO₂ glasses were prepared under high temperature, their resistivity and optical absorption were measured. Their properties depended upon with CdO and B₂O₃content, and the optical absorption edges were in the range of 2.6 to 3.1 eV, the optical energy gaps were 2.3 to 2.7 eV

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).

정상과 갑상선 종양조직에서 사람 IGF-I 유전자의 발현

김성운,장현하,박상미,김덕윤,우정택,양인명,김진우,김영설,김광원,고석환,홍성화,최영길 경희대학교 유전공학연구소 1993 遺傳工學論文集 Vol.5 No.-

Many of the growth-promoting properties of growth hormone(GH) are mediated by insulin-like growth factor-I(IGF-I), a highly conserved circulating 70-amino acid peptide. Recent studies have shown that multiple mechanisms influence IGF-I gene expression, including transcription from two promoters, alternative RNA splicing, and variable polyadenylation. In thyroid tissue, thyroid stimulating hormone(TSH) and IGF-I are the most possible candidates for follicular cell proliferation and hypertrophy. Actually IGF-I had autocrine and paracrine effect for tissue growing. We prepared thyroid tumor tissue mRNAs using single step method for detecting IGF-I levels according to different tissues, i.e., thyroid adenoma or papillary thyroid carcinoma. We used Northern blot analysis for IGF-I mRNA and RNase protection assay (RPA) for IGF-I transcription start sites. For Northern blot, we used whole human IGF-I cDNA as a DNA probe and for RPA, we used IGF-I exon 1 containing noncoding promoter 1 as a riboprobe. We got good RNA bands from Northern blot analysis around 1 kb (IGF-IA) and 7.5 kb (IGF-IB) region. To clarify the amount of both IGF-IA and IB mRNAs, we measured autoradiographied signal of IGF-I mRNAs bands using densitometer. In IGF-IA signals, there's no change among liver and thyroid tissues, but in case of IGF-IB mRNA bands, the signal was markedly increased in thyroid carcinoma tissues than that of normal thyroid tissue (85% vs 14%). In the study of RPA, all thyroid tissues used the same transcription start sites as those of liver's. We concluded that that this different regulation of IGF-I mRNA was originated from tissue specificity. That meant some tissue specific transcription factor/s were related to tissue IGF-I expression.

치수 치근단 병소의 전구 위험요인으로서의 제 2 형 당뇨의 역할에 관한 소고

김진희,배광식,서덕규,홍성태,이윤,홍삼표,금기연 大韓齒科保存學會 2009 Restorative Dentistry & Endodontics Vol.34 No.3

Diabetes Mellitus (DM) is a syndrome accompanied with the abnormal secretion or function of insulin, a hormone that plays a vital role in controlling the blood glucose level (BGL). Type 1 and 2 DM are most common form and the prevalence of the latter is recently increasing. The aim of this article was to assess whet her Type 2 DM could act as a predisposing risk factor on the pulpo-periapical pathogenesis. Previous literature on the pathologic changes of blood vessels in DM was thoroughly reviewed. Furthermore, a histopathologic analysis of artificially-induced periapical specimens obtained from Type 2 diabetic and DM-resistant rats was compared. Histopathologic results demonstrate that the size of periapical bone destruction was larger and the degree of pulpal inflammation was more severe in diabetic rats, indicating that Type 2 DM itself can be a predisposing risk factor that makes the host more susceptible to pulpal infection. The possible reasons may be that in diabetic state the lumen of pulpal blood vessels are thickened by atheromatous deposits, and microcirculation is hindered. The function of polymorphonuclear leukocyte is also impaired and the migration of immune cells is blocked. leading to increased chance of pulpal infection. Also, lack of collateral circulation of pulpal blood vessels makes the pulp more susceptible to infection. These decrease the regeneration capacity of pulpal cells or tissues, delaying the healing process. Therefore, when restorative treatment is needed in Type 2 DM patients, dentists should minimize irritation to the pulpal tissue under control of BGL. 당뇨(Diabetes Mellitus)란 혈당을 조절하는 인슐린의 분비나 기능에 장애를 야기하는 질환으로 인슐린 의존성 여부에 따라 제 1 형과 제 2 형으로 분류된다. 본 종설은 최근 증가 추세에 있는 제 2 형 당뇨가 치수 치근단 병소의 병인 과정에 전구 위험 요인으로 작용할 수 있는지를 평가 하고자 문헌고찰을 통해 당뇨의 병인 과정에서 특징적으로 나타나는 혈관 합병증에 관해 알아보고, 부가적으로 제 2 형 당뇨 쥐 모델에서 인위적인 치수감염 후 얻은 치근단 조직의 조직병리학적 분석을 시행하였다. 조직학적 관찰 결과 제 2 형 당뇨 쥐에서 대조군에 비해 치수 치근단 병소의 크기가 증가하였고, 치수 염증 반응도 심하게 나타난 것으로 보아 당뇨 자체가 숙주를 감염에 취약한 상태로 만드는 전구 위험요소로 작용하였음을 알 수 있었다. 이러한 이유로는 첫째, 당뇨 시 전반적으로 나타나는 혈관 내 죽상 침착(atheromatous deposits)에 의해 혈관 내벽의 두께가 두꺼워져 미세 순환의 장애는 물론 탐식 세포의 기능 저하, 면역 세포의 혈류 이동이 차단되어 치수 감염 시 쉽게 치근단 병소로 이환될 가능성이 높고, 둘째 치수 혈관에서 특징인 측부 순환(collateral circulation)의 부재에 따른 살균성 다형핵 백혈구의 활동 억제를 포함한 미세 혈관계의 취약성으로 인해 치수 조직의 재생능이 저하되어 추가적인 감염원의 공격에 대한 방어 및 치유 저하를 더욱 심화시키기 때문인 것으로 사료된다. 따라서 제 2 형 당뇨 환자의 수복치료 시 치과의사는 당뇨 조절 하에서 치수 조직의 자극을 최소화하기 위한 세심한 처치가 필요하다.