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성선 자극 호르몬에 의해 유도된 인간 난소내 세포사멸된 난자에서의 StAR 단백질의 발현
김세광 ( Sei Kwang Kim ),박철홍 ( Cheol Hong Park ),양현원 ( Hyun Won Yang ),김명신 ( Myoung Shin Kim ),정경아 ( Kyung Ah Chung ),배상욱 ( Sang Wook Bai ),박기현 ( Ki Hyun Park ),조동제 ( Dong Jae Cho ),윤용달 ( Yong Dal Yoon ) 대한산부인과학회 2002 Obstetrics & Gynecology Science Vol.45 No.12
Objective : To determine the distribution and expression of steroid acute regulatory (StAR) protein in human oocyte and embryo in relation to apoptosis. Methods : Immuno-labelling and confocal microscopy were applied to examine the localization of StAR pr
자궁내막암 환자에서 혈청 CA 125 의 예후인자로서의 가치
김세광(Sei Kwang Kim),정재은(Jae Eun Chung),김재욱(Jae Wook Kim),김영태(Young Tae Kim),김동규(Dong Kyu Kim),노성일(Sung Il Roh),조정현(Jung Hyun Cho) 대한산부인과학회 2001 Obstetrics & Gynecology Science Vol.44 No.10
Objective : The prognostic value of serum CA 125 sampled before the staging operation and the right CA 125 cut-off level in endometrial cancer was evaluated. Methods : Medical charts of 119 endometrial cancer patients diagnosed and surgically treated at the Department of Obstetrics and Gynecology, Yonsei University College of Medicine from March 1995 to March 2001 were reviewed. The prognostic value of CA 125 was evaluated by comparing it to other established prognostic factors of endometrial cancer such as myometrial invasion, cervix extension, tumor size, and grossly invasive disease. Enzyme immunoassay (Elecsys 2010; Roche Ltd., Basel, Switzerland) was used for the measurement of serum CA 125. Results : The level of presurgically taken serum CA 125 level correlated well with the established prognostic factors of endometrial cancer. CA 125 was one of the information that could be obtained prior to the surgical staging for predicting extensive endometrial cancer, and it could be correlated with the 5 year survival. CA 125≥20 U/ml had a higher sensitivity and lower false negative rate in predicting extensive endometrial cancer compared to the conventionally used level of CA 125≥35 U/ml. Conclusion : CA 125 has a prognostic value in predicting the extensive endometrial cancer needing lymphadenectomy, therefore it might be included in the baseline study of endometrial cancer for predicting the prognosis and individualizing the treatment modality. CA 125≥20 U/ml might be considered as the cut-off level in endometrial cancer for a better sensitivity and false negative rate.
자간전증 산모의 제대동맥에서 혈관내피세포의 기능의 변화
김세광(Sei Kwang Kim),최형민(Hyung Min Choi),박용원(Yong Won Park),김재욱(Jae Wook Kim),안덕선(Duck Sun Ahn),강복순(Bok Soon Kang) 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.6
Objectives & Methods : To directly examine the function of the endothelial cell(EC) and smooth muscle cell in umbilical arteries acquired from preeclampsia patients between June 1998 to November 1999, using a conventional tension measurement and bioassay experiment.Results : Relaxation responses to EC-dependent relaxing agents including bradykinin and A23187 in human umbilical artery rings were significantly decreased in preeclampsia(p<0.01). Relaxation responses to EC-independent agents(SNP and SNAP) were also inhibited in umbilical artery rings acquired from preeclampsia patients(p<0.01). To test the change of endothelial cell function in preeclampsia without involvement of smooth muscle dysfunction, we used human umbilical artery and rabbit femoral artery as a donor and detector, respectively, in bioassay experiment. Relaxation responses to EC-dependent agents(A23187 and bradykinin) showed similar results to conventional tension measurement (p<0.01). Relaxation responses to 8-bromo-cGMP in human umbilical artery rings were also significantly decreased in preeclampsia(p<0.01).Conclusion : It can be concluded that increased vascular resistance in preeclampsia is not only due to the disturbance of endothelial function, but also to smooth muscle dysfunction.
김세광(Sei Kwang Kim),김재욱(Jae Wook Kim),양영호(Young Ho Yang),김현주(Hyun Joo Kim),모형진(Hyoung Jin Mo),배상욱(Sang Wook Bai),김인규(In Kyu Kim) 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.1
45,X/47,XYY mosaicism is a rare sex chromosomal disorder with clinical information limited to 25 cases in the literature. We report an unusual mosaic Turner syndrome case in a 35-year old Korean woman with a phenotypic female, primary amenorrhea, short stature, immature secondary sexual characteristics. Cytogenetic analysis including G- and Q-banding revealed 45,X/47,XYY mosaicism, and SRY gene was demonstrated by polymerase chain reaction(PCR). Prophylactic bilateral gonadectomy was performed because the presence of Y-chromosomal sequences in Turner stigmata may predispose this patient to gonadoblastoma formation.
자궁경부암에서 Cdc25A, Cdc25B 및 Cdc25C의 발현
김혜연 ( Hye Yeon Kim ),김재욱 ( Jae Wook Kim ),김세광 ( Sei Kwang Kim ),김영태 ( Young Tae Kim ),김재훈 ( Jae Hoon Kim ),김성훈 ( Sung Hoon Kim ),김상운 ( Sang Wun Kim ),윤보성 ( Bo Sung Yoon ),남은지 ( Eun Ji Nam ),조혜진 ( Hye 대한산부인과학회 2006 Obstetrics & Gynecology Science Vol.49 No.10
Objective: This study was undertaken to quantitatively detect Cdc25A, Cdc25B and Cdc25C in cervical carcinoma and determine the relationship between the expression of mRNA and protein of cell division cycle (Cdc)25 phosphatase and various clinicopathologic prognostic factors of cervical carcinoma. Methods: 39 patients diagnosed with cervical carcinoma between February 2000 to March 2005 and 10 patients with benign gynecologic disease were enrolled in this study. A reverse transcriptase-polymerase chain reaction (RT-PCR) and Western blot analysis were used to analyze the expression of Cdc25 phosphatase mRNA and protein in fresh invasive cervical cancer tissue and normal cervix tissue. Results: The mRNA expressions of Cdc25A, Cdc25B and Cdc25C in the cancer tissues were significantly greater than in the control (p=0.02, 0.01, 0.02), respectively. A Western blot analysis yielded same results (p=0.01, 0.02, 0.01). There were also significant relationships between the age and the Cdc25B mRNA expression (p=0.03), between the cell type and the Cdc25C mRNA expression (p=0.04). However, other clinicopathologic prognostic factors including stage, subtype, SCC Ag level, DNA flow cytometry, lymph node metastasis, lymphovascular space invasion and HPV positivity were not statistically significant. Conclusion: Our results show that Cdc25A, Cdc25B and Cdc25C expression levels were significantly greater in cervical cancer patient group than in those of control group. Thus Cdc25 phosphatase might play an important role in carcinogenesis of cervical carcinoma. Further studies based on the correlation between Cdc25 phosphatase and survival rate would be need to support Cdc25 phosphatase as a prognostic factor of cervical carcinoma.
GnRH-agonist에 의한 인간 과립-황체화 세포의 세포사멸과 PBR 단백질의 발현
김세광,염윤희,윤정미,배상욱,양현원,조동제,윤용달,송찬호,Kim, Sei-Kwang,Youm, Yun-Hee,Yoon, Jeong-Mi,Bai, Sang-Wook,Yang, Hyun-Won,Cho, Dong-Jae,Yoon, Yong-Dal,Song, Chan-Ho 대한생식의학회 2004 Clinical and Experimental Reproductive Medicine Vol.31 No.2
Objective: To investigate whether GnRH-agonist (GnRH-Ag) using in IVF-ET affects apoptosis of human granulosa-luteal cells and expression of peripheral benzodiazepine receptor (PBR) protein involved in the apoptosis of the cells. Methods: Granulosa-luteal cells obtained during oocyte retrieval were cultured and treated with $10^{-5}M$ GnRH-Ag. Apoptosis of the cells by the treatment was confirmed using DNA fragmentation analysis 24 h after culture. The presence of PBR protein within the cells was examined by immunofluorescence staining and the expression of the protein was analyzed by Western blotting. In addition, it was measured for progesterone and nitric oxide (NO) produced by granulosa-luteal cells after GnRH-Ag treatment. To evaluate the relationship between NO production and PBR expression, sodium nitroprusside (SNP) as a NO donor was added in media and investigated the expression of PBR protein by Western blotting. Results: Apoptosis increased in the granulosa-luteal cells 24 h after GnRH-Ag treatment, whereas the expression of PBR protein significantly decreased. Furthermore, the production of progesterone and nitric oxide (NO) by the cells significantly fell from 12 h after the treatment. In the results of Western blotting after SNP treatment, the expression of PBR protein increased in the treatment with SNP alone to the granulosa-luteal cells, but was suppressed in the treatment with GnRH-Ag and SNP. Additionally, the staining result of PBR protein in the cells showed the even distribution of it through the cell. Conclusion: These results demonstrate that GnRH-Ag treatment induces apoptosis, decreasing expression of PBR protein and NO production in human granulosa-luteal cells. The present study suggests that one of the apoptosis mechanism of human granulosa-luteal cells by GnRH-Ag might be a signal transduction pathway via NO and PBR.
인간 난소의 과립 세포 배양 중 Leptin이 스테로이드 생성에 미치는 영향
김세광,김명신,황경주,권혁찬,조동제,Kim, Sei-Kwang,Kim, Myong-Shin,Hwang, Kyung-Joo,Kwon, Hyuck-Chan,Cho, Dong-Jae 대한생식의학회 2000 Clinical and Experimental Reproductive Medicine Vol.27 No.1
Objective: To elucidate the location of leptin and receptors of ovary specimens obtained from patients undergoing hysterectomy by immunohistochemical staining and to determine the effect of leptin on the steroidogenesis of cultured granulosa cells. Method: In the culturing process of the granulosa cells, FSH (1 IU/ml)and leptin (50 ng/ml), IGF-I (50 ng/ml) was administered to each study group (Group I: FSH; Group II: FSH, leptin; Group III: FSH, IGF-I; Group IV: FSH, IGF-I, leptin), and the levels of estradiol, progesterone, androstenedione in the culture media was measured by radioimmunoassay. Statistical analysis was conducted by one-way ANOVA with Scheffe test. Results: The results showed that leptin and leptin receptors were both found to be strongly stained in granulosa and theca cells, and also in some interstitial cells. Leptin receptors were also observed in cultured granulosa cells. While there was no statistically significant difference in the androstnedione concentrations between the groups, estradiol concentrations was significantly decreased in Group IV ($2202.0{\pm}151.14$ pg/ml) compared to Group III ($2859.0{\pm}122.6$ pg/ml), and progesterone concentrations were also significantly decreased in Group II($4696.3{\pm}190.6$ ng/ml) and Group IV ($4517{\pm}206.78$ ng/ml) compared to Group III($5546.0{\pm}179.5$ ng/ml). Conclustion: The study result of this study suggest that leptin is directly involved in the regulation of ovarian functions, in particular steroidogenesis.
골반장기탈출증 수술 전 시행하는 요역동학 검사에서 수술 후 결과에 영향을 미치는 유용한 지표와 동시수술의 타당성: 후향적 코호트 연구
조주현 ( Ju Hyun Cho ),김수림 ( Soo Rim Kim ),문여정 ( Yeo Jung Moon ),김세광 ( Sei Kwang Kim ),배상욱 ( Sang Wook Bai ) 대한산부인과학회 2012 Obstetrics & Gynecology Science Vol.55 No.4
Objective To evaluate effective parameters of preoperative urodynamic study (UDS) before performing surgery for pelvic organ prolapse (POP) and to validate effectiveness of concomitant surgery on urinary outcomes. Methods This was a retrospective cohort study of 308 patients who had UDS before POP surgery from January 2006 through December 2010 at Yonsei University Severance Hospital, Seoul, Korea. The patients who were diagnosed with stress urinary incontinence (SUI) by positive result of UDS (group 1) had a concomitant sling operation with POP surgery. And the patients were not diagnosed with SUI by negative result of UDS (group 2) did not. Results The prevalence rate of de novo SUI in group 2 (3.1%, n = 4) higher than group 1 (1.7%, n = 3), but there was no statistically signifi cant difference between the two groups. We checked 5 parameters of UDS (valsalva leak point pressure, maximal urethral closing pressure [MUCP], maximal fl ow rates, detrusor pressure at maximal fl ow [PdetMax], maximal cystometric capacity confi dence). PdetMax and MUCP was statistically signifi cant parameter in postoperative de novo SUI (odds ratio [OR], 1.020; 95% confi dence intervals [CI], 1.001-1.038) and postoperative de novo urgency urinary incontinence (UUI; OR 0.969; 95% CI, 0.942-0.996). Conclusion This study suggests that results of preoperative UDS and concomitant surgery can be associated with prevalence rate of postoperative de novo SUI. Focused on prevalence of postoperative urinary complications, concomitant surgery was better than only prolapse surgery. PdetMax in SUI and MUCP in UUI were statistically signifi cant parameters of UDS related on urinary outcome.
태아발육지연 유무에 따른 자간전증 임신태반에서의 Telomerase 활성도
정영내(Young Nae Jung),김세광(Sei Kwang Kim),정현철(Hyun Cheol Chung),박규현(Kyu Hyun Park),김창한(Chang Han Kim),조현정(Hyun Jung Cho),박용원(Yong Won Park),조재성(Jae Sung Cho),김인규(In Kyu Kim),양영호(Young Ho Yang),김재욱(Jae Wo 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.2
Objectives: To analyze telomerase activity(TA) in human placenta tissues and to compare TA in preeclampsia with or without fetal growth restriction(FGR) Methods: Fourty-six placenta specimens were obtained from pregnant women between 29 and 41 weeks' gestation. TA of each specimen was analyzed including 21 specimens without either preeclampsia or FGR(Group 1), 9 specimens with preeclampsia but without FGR(Group 2), and 16 specimens with both preeclampsia and FGR(Group 3). TA was analysed by radioisotope PCR based telomeric repeat amplification protocol(TRAP) assay. TA was calculated and translated into arbitrary units by computer-assisted densitometry with the control of TA in 293 cell lines. Results: TA was expressed in 16 of 21(76.1%) in group 1, and in 3 of 9(33.3%) in group 2. In contrast, only 4 patients(25%) in group 3 expressed TA. Thus, TA was expressed significantly more often in group 1 than in group 2 and group 3(p=0.003). However, compared with group 2, expression of telomerase activity in group 3 was not reduced significantly(p>0.05). Conclusion: TA was minimal in placenta from preeclamptic women with and without FGR, suggesting placental senescence and apoptosis may be associated with FGR and severe preeclampsia.