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RISS 인기검색어
- 검색키워드
- 저자 : 李熙永(Hee Yong Lee) (검색결과 96 건)
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정계정맥류로 인한 불임증에 대한 췌장성 Kallikrein의 효능
이희영,이상곤,김청수,이성원,Lee, Hee-Yong,Lee, Sang-Kon,Kim, Choung-Soo,Lee, Seung-Won 대한생식의학회 1986 Clinical and Experimental Reproductive Medicine Vol.13 No.2
It has been reported that oral kallikrein therapy exerts a favourable effect on sperm motility in asthenozoospermic patients. In order to evaluate the efficacy of kallikrein on asthenozoospermia, a total of 20 subfertile male patients with varicocele, whose sperm counts were less than $40{\times}10^6/ml$ and sperm motility was less than 30%, was subjected to this clinical study (Table 1). They were divided into 2 study groups: 1) Varicocelectomy group consisted of 10 patients with varicocele (grade II-III) who underwent varicocelectomy. 2) Kallikrein group was composed of 10 patients with varicocele (grade I) who were given kallikrein orally 600 KU (kallikrein unit) daily divided 3 times after meal for 3 to 9 months. Semen analyses were repeated twice before the study, once a month during the study and twice after the study. Effective results designate that sperm parameters improved more than 30% from the basical levels after varicocelectomy or kallikrein exposure. Sperm counts increased from $32.5{\times}10^5/ml$ to $45.5{\times}10^6/ml$ after varicocelectomy in 3 patients and sperm motility increased from 25% to 38.5% after varicocelectomy in 3 patients. Pregnancy occurred in 2 patients of 3 responders and 1 patient of 7 non-responders 3 to 6 months after varicocelectomy in Varicocelectomy group. Sperm motility increased from 28% to 40.2% after kallikrein treatment in 3 patients. Pregnancy occurred in 2 patients of the 3 responders in Kallikrein group (Tables 2-3). There were no significant changes in volume and morphology in Varicocelectomy group before after varicocelectomy and no significant changes in volume, counts, and morphology before and after kallikrein exposure. No remarkable side effects were noted with kallikrein treatment.
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CLINICAL EXPERIENCES OF VASOVASOSTOMIES
이희영,Lee, Hee-Yong The Korean Society for Reproductive Medicine 1975 Clinical and Experimental Reproductive Medicine Vol.2 No.1
A total of 185 vasovasostomies were carried out for 11 years. Various factors which are of importance in fluencing the successful vasovasostomies are analysed and presented as follows: In recent years, demand of reanastomosis of the vas deferens increased considerably. An average age of the subjects is 39, and that of their wives, 33 in this series. An average interval between vasectomy and vasovasostomy is 4 years. An average number of living chidren is 2.6 at the time of vasectomy. and 2.1 at the time of time of vasovasostomy. Merchant and public official are the most commonly encounterd occupation in the present series. Coital frequencies are 2.2/week after vasovasostomy. The most common reasons for requesting the vasovasostomy are remarriage and deaths of children, especially son. Success rate is considerably higher among younger group than that of the older. Success rate is somewhat higher among groups of shorter interval between the operations (vasectomy and vasovasostomy) than that of longer interval group. Success rate is higher among bilateral vasovasostomy group than that of any others. Success rate is higher in solid splint group and no splint group than hollow splint group. The closed dressing technique of the end of splint on the scrotum is found to be reasonably effective in preventing infection. Ordinary end-to-end anastomosis and folded side-to-side anastomosis techniques are proved to be the most ideal form of modified operation for the successful vasovasostomies. The most common causes of failure are infection, injuries of blood supply, avascular necrosis due to extensive mobilization, inadequate approximation of both vasal end, hematoma, changes of epididymal environment, and early ambulation in this series. Overall success rate of the author's series is found the 81 per cent, and impregnation rate is 35 per cent. Overall results reported by other workers are that success rate regarding appearance of sperm in the semen after operation is 64 per cent, and that of impregnation after vasovasostomy is 33 per cent. The results of semen assessment performed on same cases prior to vasectomy and following vasovasostomy showed that post-vasovasostomy sperm count scarcely reached three-quaters of pre-vasectomy count.
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이희영,Lee, Hee-Yong 대한생식의학회 1988 Clinical and Experimental Reproductive Medicine Vol.15 No.1
The contraception practice rate in Korea has steadily increased from 9% in 1964 to 72% in 1987. Accordingly, natural increase rate of population declined from 28.4 per 1,000 in 1964 to 12.4 per 1,000 in 1987. Notably in recent years, the acceptance of surgical contraception services has sharply increased in this country. Now the author analyzes various factors influencing successful vasectomy and vasovasostomy based on his experience in performing more than 8,000 vasectomies and 1,000 vasovasostomies during the past 25 years. These various factors consist of preoperative screening interview, surgical vasectomy technique, vas irrigation technique, open-ended vasectomy, complications from vasectomy, sperm granuloma formation, spermatogenesis and steroidogenesis after vasectomy, immunological consequences after vasectomy, prostatic diseases and vasectomy, late post-vasectomy syndrome, psychological effects after vasectomy, and success rates of vasovasostomy. Besides, the author makes more comments on the results of the clinical trials on new approaches to reversible vas occlusion technique with a new device of Intravasal Thread and to reversible suppression of spermatogenesis with long-acting sex hormones.
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이희영(Hee-Young Lee),정은정(Eun-Jeong Jeong),전선영(Seon-Young Jeon),조민숙(Min-Sook Cho),조우진(Woo-Jin Cho),김희대(Hee Dae Kim),차용준(Yong-Jun Cha) 한국식품영양과학회 2008 한국식품영양과학회지 Vol.37 No.12
국내 주요 생산지인 전남 무안, 전북 부안, 경북 안동 및 경남 창녕의 3개 지역(유어, 장마, 성산)에서 수거된 양파 6종의 휘발성향기성분을 SPME법으로 추출하여 GC/MSD로 분석하였다. 총 51종의 화합물이 동정되었는데, 이는 함황화합물류(20종), 알데히드류(4종), 케톤류(5종), 에스테르류(11종), 방향족화합물류(4종), 함질소화합물류(2종) 및 기타화합물류(5종)로 구성되었다. 함황화합물류가 총 휘발성향기성분 함량의 62.6~80.3%를 차지하였으며, 함량 면에서는 안동(4,828 ng/g), 부안(4,627 ng/g), 유어(4,149 ng/g), 장마(2,979 ng/g), 성산(2,758 ng/g) 및 무안(2,171 ng/g) 순으로 많았다(p<0.05). 항산화효과가 있는 5종의 함황화합물류(2,4-, 2,5-dimetylthiophene, 2-vinyl-1,3-dithiane, 5-methoxy thiazole, 3,5-diethyl-1,2,4-trithiolane)는 안동, 유어, 장마, 부안, 성산 및 무안 순이었고, 항암효과가 있는 함황화합물류 5종((Z)-, (E)-methyl propenyl disulfide, (Z)-, (E)-propenyl propyl disulfide, di-2-propenyl disulfide)은 부안, 유어, 안동, 장마, 성산 및 무안 순으로 많았다. To provide scientific information for processing of value-added products from onion, volatile flavor compounds were compared in onions harvested in 6 regions, such as Muan (Jeonnam), Buan (Jeonbuk), Andong (Gyeongbuk), and 3 regions of Gyeongnam around Changnyeong (Yueo, Jangma, Seongsan). A total of 51 compounds were detected in samples by solid phase microextraction (SPME)/GC/MSD and they consisted mainly of sulfur-containing compounds (20), aldehydes (4), ketones (5), esters (11), aromatic hydrocarbons (4), nitrogen containing compounds (2), and miscellaneous compounds (5). The sulfur-containing compounds were the major compounds with ranges of 62.6~80.3% of total volatiles, regardless of harvested regions. The amounts of 5 sulfur containing compounds known as having antioxidant activity (2,4-, 2,5-dimetylthiophene, 2-vinyl-1,3-dithiane, 5-methoxy thiazole, and 3,5-diethyl-1,2,4-trithiolane) were the highest in Andong and followed by Yueo, Jangma, Buan, Seongsan, and Muan. However, onions from Buan region had the highest amounts of 5 sulfur-containing compounds known as having anticarcinogenic activity ((Z)-, (E)-methyl propenyl disulfide, (Z)-, (E)-propenyl propyl disulfide, and di-2-propenyl disulfide), followed by Yueo, Andong, Jangma, Seongsan, and Muan.
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이희영(Hee-Young Lee),정은정(Eun-Jeong Jeong),전선영(Seon-Young Jeon),차용준(Yong-Jun Cha) 한국생명과학회 2008 생명과학회지 Vol.18 No.12
국내 주요 양파 생산지인 전남 무안, 전북 부안, 경북 안동 및 경남 창녕의 3개 지역(유어, 장마, 성산)에서 수거된 양파 6종을 0.5℃에 저장하면서의 휘발성 향기성분을 분석 비교하였다. 동정된 총 45종의 화합물에서 함황화합물류(21종)이 가장 많았고, 양적으로도 66.9~86.9%를 차지하였다(저장 0일경). 함량면에서는 유어(7,582.4 ng/g)가 가장 많았고, 다음으로 성산(5,933.3 ng/g), 무안(4,043.5 ng/g), 장마(2,374.7ng/g), 부안(2,233.3 ng/g) 및 안동( 1,516.7 ng/g) 순이었다. 저장 60일경에는 지역에 관계없이 상당량 감소하였으며, 무안(2,445.0 ng/g), 유어(2,401.7 ng/g), 성산(1,536.4 ng/g), 안동(1,306.5 ng/g), 장마(1,188.2 ng/g) 및 부안(1,183.5 ng/g)순이었다 항산화효과가 있는 6종의 함황화합물류(2,4-,2,5-dimetylthiophene, 2-vinyl-1,3,-dithiane, 5-methoxy thiazole, 3,5-diethyl-1,2,4-trithiolane 및 isomer)는 저장 0일경에는 유어, 성산, 무안순으로 많았으나, 저장 60일경에는 유어, 무안, 성산, 안동, 장마, 부안의 순이었다. 항암효과가 있는 함황화합물류 5종((Z)-, (E)-methyl propenyl disulfide, (Z)-, (E)- propenyl propyl disulfide, di-2-propenyl disulfide)은 저장 0일에는 유어, 성산 및 무안이 가장 높았으나, 저장 60일 경에는 무안, 유어, 성산, 부안 및 장마 순이었다. Volatile flavor compounds of onions were analyzed and compared during storage at 0.5℃, which harvested in 6 regions, such as Muan, Buan, Andong and 3 regions of Changnyeong (Yueo, Jangma and Seongsan). A total of 45 compounds were detected in samples by solid phase microextraction (SPME)/GC/MSD, consisting mainly of sulfur-containing compounds (21), aldehydes (13), ketones (2) and miscellaneous compounds (9). The sulfur-containing compounds were major compounds with ranges of 66.9~86.9% of total volatiles in 0 day of storage as regardless of harvested regions. Three regions (Yueo, Seongsan and Muan) had high amounts of over 4,043 ng/g in 0 day of storage, whereas 2 regions (Muan and Yueo) only had amounts of over 2,400 ng/g after 60 days of storage. Five sulfur-containing compounds known as having antioxidant activity (2,4-, 2,5-dimetylthiophene, 2-vinyl-1,3-dithiane, 5-methoxy thiazole and 3,5-diethyl-1,2,4-trithiolane and isomer) were the high levels in 3 regions (Yueo, Seongsan and Muan) during 60 day of storage. These 3 regions had also the highest amounts in 5 sulfur-containing compounds known as having anticarcinogenic activity ((Z)-, (E)-methyl propenyl disulfide, (Z)-, (E)-propenyl propyl disulfide, and di-2-propenyl disulfide) and kept same trend after 60 days of storage.
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공동주택 열교 방지를 위한 열교차단장치 개발 및 적용 효과 분석
이희영(Hee-Young Lee),김황기(Hwang-Ki Kim),홍석주(Seok-Ju Hong),백용규(Yong-Gyu Baek) 한국생활환경학회 2014 한국생활환경학회지 Vol.21 No.3
When there are parts happened high-conductivity or non-insulation at the connection structures of walls, slabs and roofs in apartments, these parts are became thermal weak points. For this reason, the lost of many quantities of heat and energy is occurred. It is called the thermal bridge. This study is to investigate the use of Thermal Breaker that is preventing Thermal Bridge in foreign countries and to evaluate through the comparison of the environmental thermal performance with three different condition; “applying of thermal breaker that is a representative device of foreign country”, “applying of thermal breaker that has been developing” and “Non-applying of thermal breaker”. For this study, Physibel that is a program to analyze the interpretation of heat transfer is used and the temperature condition of indoor and outdoor is applied to each 25oC and -15oC proposed by “Design Criteria for Apartment to Prevent Condensation”. Simulations with thermal breaker and without it are conducted to compare the heat transmission coefficient based on the heat flow and area of a wall. As a result, Thermal performance decline is founded approximately 56.5% through the simulation result without thermal breaker; the heat transmission coefficient of inner wall is 0.471W/m2K and outer wall is 0.301W/m2K. In contrast, the thermal performance decline is showed approximately 3.6%~12.3% through the simulation result with thermal breaker; the heat transmission of inner wall and outer wall is around 0.311W/m2K~0.338W/m2K. Thus, installing the thermal breaker at the connection structure of apartment can reduce the thermal bridge and prevent condensation.
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