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한국형 자궁경부 촬영진 ( New Cervicography ) , 세포검사 그리고 HPV-DNA 검사를 이용한 새로운 자궁경부암 검진 모델 ( Model ) 개발
김승조(SJ Kim),박찬규(CK Park),이효표(HP Lee),남궁성은(SE Namkoong),강순범(SB Kang),서호석(HS Saw),이재관(JK Lee),김수녕(SN Kim),김재원(JW Kim),배석년(SN Bae),김찬주(CJ Kim),이근호(KH Lee),이선영(SY Lee),김인호(IH Kim),이찬(C Lee),이정노(JN Lee) 대한산부인과학회 2001 Obstetrics & Gynecology Science Vol.44 No.5
N/A Objective : The false negative rate of conventional cytology is reported to range from 18 to 45%. It is necessary to develop more effective screening strategies that would ideally be more accurate than conventional cytology. This study is designed to investigate the potential of conventional cytology, cervicography, HPV-DNA testing and their combinations as primary screening techniques for cervical neoplasia. The purpose of this project is to develop the models and guidelines for screening tools of cervical cancer of the uterus by evaluating sensitivity, specificity and cost-effectiveness of all the screening methods. Study design : We conducted a screening of random sample of women who visited the department of OB-Gyn. of five different major university hospitals such as Catholic University Hospital, Korea University Hospital, Seoul National University Hospital, Yeonsei University Hospital and Pochon CHA University Bundang CHA Hospital, from May 1, 1996 to April 30, 1999. In a cohort women with an age range of 20 to 70 who underwent routine cytologic screening at Catholic University, Hospital Bundang CHA General Hospital and local clinics from April 1, 1996 to Decomber 31, 2000. cervicography (n=417,125) and testing for HPV-DNA (n=1,347) by the hybrid capture assay were studied for the ability of the cervical cancer screeuing. A new cervicography system with Kim's classification which was developed by Prof. Kim Seung Jo as an adjunctive method for the cervical cancer screening was applied in this cohort study. And then, accuracy, effectivencess, cost-effectiveness of the single or combined screening method were analysed. Result : Sensitivity and specificity of Pap smear were ranged from 55.6% to 83.1% and 72.8% to 88.3% respectively. The combination of Pap smear and cervicography had sensitivity from 89.7% to 98.6%, specificity from 68.2% to 93.2%. With combination of Pap smear, HPV DNA test and cervicography, sensitivity became also highest accuracy among all screening methods from 92.8% to 98.8%. Considering medical charges for diagnosis and social cost occurred by false positive and false negative results, the most cost-effective diagnostic modality was thought to be the combination of Pap smear and cervicography(91,433 won). In patients who were diagnosed as LSIL, colposcopic examination confirmed progression to high grade intraepithelial lesion(HSIL) in 10.7% patients, persistence of LSIL in 55% patients during the 3 year follow-up period. Accuracy of the screening for cervical cancer and CIN can significantly be improved by cytology with new cervicography rather than cytology alone. We concluded that cervicography can be important adjunctive tests for cervical cytology, improving the effectiveness of cervical screening by allowing a more sensitive detection of cervical neoplasia.
Cellular mechanisms for trazodone-induced cardiotoxicity
Lee, S,Lee, H-A,Kim, SJ,Kim, K-S SAGE Publications 2016 Human & experimental toxicology Vol.35 No.5
<P>The second-generation selective 5-HT2 receptor antagonists and reuptake inhibitors (SARIs) class antidepressants are known to have fewer cardiovascular side effects than the older ones. However, several case reports showed that trazodone, one of the second-generation SARIs, induces QT prolongation, cardiac arrhythmia, and ventricular tachycardia. Although these clinical cases suggested trazodone-induced cardiotoxicity, the toxicological actions of trazodone on cardiac action potentials (APs) beyond the human ether-a-go-go related gene (hERG) remain unclear. To elucidate the cellular mechanism for the adverse cardiac effects of trazodone, we investigated its effects on cardiac APs and ion channels using whole-cell patch clamp techniques in human-induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) and transiently transfected human embryonic kidney cells (HEK293) with cardiac ion channel complementary DNA. Trazodone dose-dependently decreased the maximum upstroke velocity (V-max) and prolonged the AP duration, inducing early after depolarizations at 3 and 10 M that triggered ventricular arrhythmias in hiPSC-CMs. Trazodone also inhibited all of the major ion channels (I-Kr, I-Ks, I-Na, and I-Ca), with an especially high inhibitory potency on hERG. These data indicate that the prolonged AP duration and decreased V-max due to trazodone are mainly the result of hERG and sodium ion inhibition, and its inhibitory effects on cardiac ion channels can be exhibited in hiPSC-CMs.</P>
이종학,김종화,백원영,이성재,이순애,정영택,신정규 대한산부인과학회 1998 Obstetrics & Gynecology Science Vol.41 No.10
저자 등은 만성 신부전증으로 정기적인 혈액투석을 시행하고 임신기간중 양수과다증으로 인해 반복적 양수천자를 시행하였던 37세 산모에서 임신 37주 만에 2640 gm의 건강한 남아를 반복제왕절개술로 성공적인 분만을 한 1예를 경험하였기에 문헌 고찰과 함께 보고하는 바이다. Pregnancy is an unusual event in patient with chronic renal failure under going hemodialysis. When it occurs, spontaneous abortion, still birth, and neonatal death end 75% to 80% of the pregnancies. The mother is at risk for hypertension and abruptio placenta. The fetus is at risk for prematurity and growth retardation. Successful term pregnancy and cesarean delivery of a patient with chronic renal failure is presented.
Lee, JB,Lee, JE,Park, JH,Kim, SJ,Kim, MK,Roh, SI,Yoon, HS Society for the Study of Reproduction 2005 BIOLOGY OF REPRODUCTION Vol.72 No.1
Human embryonic stem (hES) cells are usually established and maintained on mouse embryonic fibroblast (MEFs) feeder layers. However, it is desirable to develop human feeder cells because animal feeder cells are associated with risks such as viral infection and/or pathogen transmission. In this study, we attempted to establish new hES cell lines using human uterine endometrial cells (hUECs) to prevent the risks associated with animal feeder cells and for their eventual application in cell-replacement therapy. Inner cell masses (ICMs) of cultured blastocysts were isolated by immunosurgery and then cultured on mitotically inactivated hUEC feeder layers. Cultured ICMs formed colonies by continuous proliferation and were allowed to proliferate continuously for 40, 50, and 55 passages. The established hES cell lines (Miz-hES-14, -15, and -9, respectively) exhibited typical hES cells characteristics, including continuous growth, expression of specific markers, normal karyotypes, and differentiation capacity. The hUEC feeders have the advantage that they can be used for many passages, whereas MEF feeder cells can only be used as feeder cells for a limited number of passages. The hUECs are available to establish and maintain hES cells, and the high expression of embryotrophic factors and extracellular matrices by hUECs may be important to the efficient growth of hES cells. Clinical applications require the establishment and expansion of hES cells under stable xeno-free culture systems.
Lee, YH,Lee, HS,Choi, SJ,Ji, JD,Song, GG SAGE Publications 2012 Lupus Vol.21 No.1
<P>The aim of this study was to determine whether the functional interleukin-6 (IL-6) promoter -174 G/C and -572 G/C polymorphisms confer susceptibility to systemic lupus erythematosus (SLE) in ethnically different populations. Meta-analysis was conducted on the associations between the IL-6 polymorphisms and SLE using; 1) allele contrast, 2) the recessive model, 3) the dominant model, and 4) the additive model. A total of 11 studies were considered in this study, and ethnicity-specific meta-analysis was performed on European and Asian populations. Meta-analysis of the IL-6 -174 G/C polymorphism showed an association between SLE and the IL-6 -174 G allele in all study subjects (odds ratio (OR)?=?1.344, 95% confidence interval (CI)?=?1.052-1.718, p?=?0.018). Furthermore, stratification by ethnicity indicated an association between the IL-6 -174 G allele and SLE in Europeans (OR?=?1.264, 95% CI?=?1.037-1.541, p?=?0.020). Meta-analysis of the IL-6 -572 G/C polymorphism revealed that an association was found between SLE and the IL-6 -572 G/C polymorphism using the recessive model, but ethnicity-specific meta-analysis revealed no association between SLE and the IL-6 -572 G/C polymorphism in Asians. In conclusion, this meta-analysis demonstrates that the IL-6 -174 G/C polymorphism may confer susceptibility to SLE in Europeans, but that the IL-6 -572 G/C polymorphism is not associated with susceptibility to SLE in Asians.</P>