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정자직접주입법시술시 동결보존된 인간정소정자에 의한 수정 및 임신성공
엄기붕(Ki Boong Oum),윤태기(Tae Ki Yoon),차광열(Kwang Yul Cha),김현주(Hyun Joo Kim),남윤성(Yoon Sung Nam),김현규(Hyun Kyoo Kim),곽인평(In Pyung Kwak),한세열(Sei Yul Han) 대한산부인과학회 1999 Obstetrics & Gynecology Science Vol.42 No.1
N/A There are not much reports concerning with clinical results using frozen-thawed testivular sperm in ICSI program. It is speculated that the necessity of cryopreservation of testicular sperm to avoid repeating surgical procedure for obtaining sperm for ICSI. This study was carried out to confirm whether frozen-thawed testicular sperm could be fertilized and pregnancy could be achieved using embryos fertilized with frozen-thawed testicular sperm in ICSI program or not. Testicular sperm obtained from obstructive- or non-obstructive azoospermia patients were co-cultured for 3 days with Vero cells to improve sperm motility. By co-culturing with Vero cells for 3 days, O-ll% of sperm motility after thawing increased up to 8-42% after co-culturing. ICSI was performed using frozen-thawed, and co-cultured sperm with 66 oocytes obtained from 8 patients and 62 oocytes were survived and 49(79.0%) oocytes were fertilized normally. Embryo transfer was possible in 7 out of 8 patients, and pregnancy was achieved in 6 patients(85.7%). These results indicated that not only fresh testicular sperm but frozen-thawed testicular sperm can be used in ICSI program.
김현규,엄기붕,김현주,고정재,이숙환,윤태기,차광열,Kim, Hyun-Kyoo,Oum, Ki-Boong,Kim, Hyun-Joo,Ko, Jung-Jae,Lee, Sook-Hwan,Yoon, Tae-Ki,Cha, Kwang-Yul The Korean Society for Reproductive Medicine 1997 Clinical and Experimental Reproductive Medicine Vol.24 No.2
폐색성 혹은 비폐색성 무정자증에서 부정소 정자채취법 등이 부적절하다고 여겨질때는 정소 조직을 일부 절제하여 그 조직으로부터 정자를 직접 채취하게 되는데 일반적으로 이렇게 정소로부터 추출한 정소정자는 운동성이 전혀 없거나 매우 약한 운동성을 보이는 경우가 많다. 본 연구의 목적은 이러한 정소정자를 Vero cell과 공배양을 시킴으로써 운동성을 획득시키거나 향상시키고 이를 수정시키는 시기까지 지속시킴으로써 정소정자추출술 (TESE)을 시행하는 환자나 의료진들에게 보다 편안하고 융통성있는 시간대를 부여하고, 아울러 정자직접주입술 (ICSI)을 보다 용이하게 하여 성공적인 수정률과 임신율을 얻음에 있다. 또한 ICSI를 시행한 후, 운동성이 향상된 잉여의 정소정자를 냉동보존함으로써 차후에 TESE을 다시 시행치않고도 시험관 아기 시술을 시도할 수 있는 부가적인 잇점도 있다고 할 수 있다. 대상환자군은 정관폐색증(n=11) 혹은 비정관폐색증(n=2)을 보이는 13명의 무정자증의 남성불임환자였으며 난자회수예정일 3일전에 TESE를 시행하여 정소정자를 얻은 후 이를 정자직접주입술이 시행되는 당일까지 Vero cell과 공배양을 실시하였다. Vero cell과의 공배양에 의하여 운동성이 있는 정소정자의 수는 공배양전과 비교하여 평균 3.3배가 증가하였으며, 특히 공배양전에 운동성이 있는 정소정자의 수가 50,000/ml이하의 미약한 운동성만을 보였던 경우 (n=5)에는 공배양 후에 운동성이 있는 정소정자 수의 평균증가율이 7.7배였다. 공배양전 정자운동성이 전혀 없었던 2례의 비정관폐색증환자중 3일간의 공배양을 통하여 1례에서 운동성을 획득한 정소정자를 얻을 수 있었으며 (14,300/ml), 정자직접주입술을 통하여 성공적인 수정 및 임신에 도달할 수 있었다. Vero cell과 공배양을 하고 ICSI했던 결과, 평균 수정률은 75.0% 이었으며 임신율은 61.5%였다.
항정자항체가 일반적 체외수정 방법 및 정자직접 주입법(ICSI)에 미치는 영향에 관한 연구
오종훈,엄기붕,최동희,정미경,한세열,차광열,정길생,Oh, Jong-Hoon,Oum, Ki-Boong,Choi, Dong-Hee,Chung, Mi-Kyung,Han, Sei-Yul,Cha, Kwang-Yul,Chung, Kil-Saeng 대한생식의학회 1997 Clinical and Experimental Reproductive Medicine Vol.24 No.3
The purpose of this study was to examine the effects of anti-sperm antibody (ASA) on the fertilization processes using conventional IVF and ICSI procedure in human and hamster oocytes. In human IVF, we have observed restricted fertilization with sperm testing positive for ASA. ($23{\sim}90%$ IgA, 60-97 % IgG). However, if ICSI was perform in the next IVF cycle with the same patients, we could successfully fertilize the oocytes (37%; p<0.001), thus achieving pregnancy and delivery. When the sperm were cocultured in medium containing ASA, there were binding of ASA to sperm surface. In addition, the mean rate of the acrosomal reaction in an in vitro acrosome reaction test was lower for Ab-bound sperm (43.5%) than for Ab-free sperm group (51.3%, p<0.05). We used human sperm and hamster oocytes to confirm the negative effects of the ASA on fertilization. The sperm and/or oocytes have been expose to medium containing ASA before IVF and ICSI. In this experiment, the ASA was bound to the oocyte and sperm surface. The following results were obtain by using various combinations of ASA free or ASA bound sperm with ASA free or ASA bound oocytes for IVF. When ASA free sperm were inseminate with ASA free and ASA bound hamster oocytes, the fertilization rates are 89.6% and 74.3% respectively. However, when ASA bound human sperm were use the results were 62.5% and 55.6% respectively. These shows the fertilization rate was significantly decreased in both ASA bound and ASA free oocytes when using ASA bound sperm. No difference found when ASA are present on the oocyte surface. When the hamster oocytes was treated by ICSI with ASA free or ASA bound human spermatozoa, no significant difference was found. These results showed that ICSI is the most promising method for couples who fertilization was not possible by conventional IVF because of ASA.
정자 직접 주입법으로 임신된 태아 145 예의 산전 세포유전학적 분석
이숙환(Sook Hwan Lee),엄기붕(Ki Boong Oum),이은정(Eun Jung Lee),윤태기(Tae Ki Yoon),차광열(Kwang Yul Cha),곽인평(In Pyung Kwak),최동희(Dong Hee Choi) 대한산부인과학회 1998 Obstetrics & Gynecology Science Vol.41 No.12
N/A Prenatal diagnoses were performed in 145 fetuses resulting from 73 singleton and 36 twin pregnancies, all established by intracytoplasmic sperm injection (ICS: amniocentesis in 108 patients and Chorionic villus sampling in one. The prenatal cytogenetic results were obtained from pregnancies after ICSI using ejaculated spermatozoa, epididymal spermatozoa, testicular spermatozoa and after the replacement of frozen-thawed embryos derived from ICSI. The Karyotypes were normal in 138 cases (95.2%) of the prenatal diagnoses and there were 2 cases (1.4%) de novo and 5 cases (3.4%) inherited chromosomal aberrations. The two cases of de novo abnormalities were: 46,XY,t(6;7)(q21;p22) and 47,XY,+21 (trisomy 21).
심한 무력정자증 환자의 ICSI 시행시 Pentoxifylline을 사용한 정자처리법이 임상결과에 미치는 영향
손지온,신지수,정창진,조용선,엄기붕,최동희,김현주,Sohn, Jie-Ohn,Shin, Ji-Su,Jeong, Chang-Jin,Cho, Yong-Seon,Oum, Ki-Boong,Choi, Dong-Hee,Kim, Hyun-Joo 대한생식의학회 2002 Clinical and Experimental Reproductive Medicine Vol.29 No.2
Objective: The aim of this study was to evaluate the effect of pentoxifylline (PF) on the conventional ICSI program undergone in severe asthenozoospermia. Method: Total 348 cycles of ICSI programs undertaken at CHA General Hospital from January, 1996 to September, 2000, were divided into two groups - injected with pentoxifylline-treated sperm (PFT, 204 cycles) or non-treated sperm (NPFT, 144 cycles) and the clinical results of PFT group were compared with those of NPFT. Results: PF-treatment on sperm increased their motility of normozoospermia and severe asthenozoospermia. Fertilization rate of PFT group was higher than those of ICSI programs undertaken using sperm of NPFT (70.6% vs. 62.9%, p<0.01). And, ET and clinical pregnancy rates of PFT were slightly higher than those of NPFT (93.1%, 44.2% vs. 90.3%, 36.2%). Conclusion: These results showed that treatment of pentoxifylline has a beneficial role on selection of viable sperm in severe asthenozoospermia.
DIG System을 이용한 후레자일 X 증후군 ( Fragile X Syndrome ) 과 근이영양증 ( DMD ) 의 진단
이숙환(Sook Hwan Lee),조성원(Sung Won Cho),한정희(Jung Hee Han),이교원(Kyo Won Lee),한종설,차광은(Kwang Eun Cha),한세열(Se Yul Han),계정웅(Chung Woong Kay),조세현(Se Hyun Cho),엄기붕(Ki Boong Oum),곽인평(In Pyung Kwak) 대한산부인과학회 1998 Obstetrics & Gynecology Science Vol.41 No.11
N/A The aim of this study was to develop a rapid and safe non-radioactive DIG DNA labeling and detection for Southern blot analysis for fragile X syndrome and Duchenne muscular dystrophy (DMD). Southern blot analysis is accurate test showing expression of the (CGG)n repeat and abnormal methylation pattern of CpG island in hagile X syndrome, and good confirmative secondary test in case of deletion in DMD. But in terms of test rapidity, these conventional radioactive Southern analysis may not be feasible for rapid screening of prenatal samples and at-risk populations to determine their status and to provide genetic counseling to their families. As an alternative radioactive Southern blotting, DIG DNA labeling and detection system does not require handling of radioactive material nor require learning any new technology. The complete procedure of labeling the DNA and hybridization to detection of the first visible signal can be compbsbed witbin 7 days. In addition, hybridization solutions containing labeled DNA can be reused several times after renewed denaturation.