Expansin 유전자를 이용한 담배의 형질전환과 형질전환체 선발

백승준, 김보미, 장종오, 엄유리, 석영선, 이이 충북대학교 연초연구소 2008 煙草硏究 Vol.21 No.-

-본문참고-

일개 양로원 노인들의 건강상태

이선영,김성원,선우성,조홍준 대한노인병학회 2001 대한노인병학회지 Vol.5 No.3

오리엔탈나리의 球根 收穫時期와 低溫處理 期間이 生育에 미치는 影響

金熙峻,金正萬,金致善,柳汀,崔泳根,文炳永 한국화훼연구회 2001 화훼연구 Vol.9 No.1

This study was carried out to determine the effect of the duration of chilling treatment and the lifting time of bulbs on growth of Lilium Oriental hybrids for product of cut flower in the type of forcing or semiforcing culture in Korea. "Casablanca", "Acapulco" and "Le Reve" in lilium Oriental hybrids were used in these experiment and carried out from 1999 to 2000 in Iksan, Korea. The bulbs for experiment were lifted on August 27, September 27 and October 27 and the all of them were chilled at 5±1℃ for 0,8,10,12 weeks. Development of the bulbs lifted on October 27 was superior than that of lifted bulbs on August 27 in the three cultivars. The bulbs lilted lately and chilled for a long time were sprouted more earlier and grown faster. In order to increase bulb sprouting until 100%, the duration of chilling treatment of bulbs was need for 12 weeks on August 27, 10 weeks on September 27 and above 8 weeks on October 27. The flowering according to the duration of chilling treatment and the lifting time of bulbs was same above. Consequently, the bulbs should be chilled at 5±1℃ for chilled for 10 weeks at late September and 8 weeks in producted bulbs at late October in earlyㆍMidseason variety fur product of cut flower hut bulbs of late variety should be chilled for 12 weeks at late September and 10 weeks at late October.

자갈함량과 질소시비량이 고랭지 배추재배시 침투수에 의한 질소용탈 및 생육에 미치는 영향

박철수,이계준,정영상,주진호,황선웅 한국환경농학회 2005 한국환경농학회지 Vol.24 No.1

고랭지 배추재배지의 성토재로 사용되고 있는 석비레는 모래와 자갈함량이 높아 토양침식과 양분용탈의 주 요인이 되고 있어 본 연구는 자갈함량에 따른 배추수량과 질소의 용탈양상을 구명하고자 pot 시험을 수행하였다. 시험 결과, 배추의 생체수량은 자갈의 함량이 증가할수록 감소하는 경향이었고, 특히 질소시비량 240 kg/ha 구에서는 현저한 수량감소를 보였다. 질소시비량 60 kg/ha 구에서는 자갈함량 30%, 질소시비량 120 kg/ha 구에서는 자갈함량 50%를 변환점으로 하여 배추수량이 급격히 감소하였다. 배추의 생육장해는 질소시비량이 240 kg/ha인 구에서는 대부분 위조현상이 나타났으며 결구 초기인 8월 초순에는 자갈함량이 50% 이상이 되면 질소시비량을 ha당 120 kg만 시용해도 50% 이상이 위조현상을 보였다. 침출수의 암모늄태 질소는 자갈함량과 질소시비량이 많을수록 침출수의 농도가 높아지는 경향을 보였는데, 특히 배추의 고사가 발생한 30% 이상의 자갈함량과 질소시비량 240 kg/ha인 처리구의 농도는 139-339 mg/L이었다. 침출수의 질소용탈량은 자갈함량에 따라 정의 상관관계를 보였고, 자갈함량이 10% 증가될 때마다 pot당 0.14g씩 증가하여 자갈함량이 10%일 때에 비하여 자갈함량이 30%가 되면 약 3.8배 증가하였다. 배추재배 시험 후 토양의 화학성은 NH₄-H 농도와 pH는 처리간에 일정한 경향을 보이지 않았고, NO₃-N 농도는 자갈함량 30%까지는 증가하다가 50%부터는 감소하는 경향을 보였다. 사양토에서 자갈의 함량이 30%일 때 질소비료 240 kg/ha, 자갈함량이 50%일 때 질소비료 120 kg/ha을 시용하면 배추의 생육장해를 가져올 수 있다. 따라서 이러한 토양에 시비를 하게 되면 염류장해와 위조현상을 초래하므로 토양유실이 심한 고랭지는 특수환경을 고려한 시비기준이 설정되어야 할 것으로 판단된다. Continuous monocropping of Chinese cabbage in Gangwon highland increased gravel and sand contents due to surface soil erosion. Nutrient leaching and Chinese cabbage growth were investigated with different treatments of gravel contents and nitrogen application levels by using 0.5 m²Wagner pots. Gravel contents were 0, 10, 30, 50, 70, and 90%(w/w), nitrogen application levels were 60, 120, and 240 kg/ha, and manure compost application rate was 15 ton per hectare, respectively. Wagner pots were filled with loamy sand soil mixed with 5 cm-sized gravels. Fresh weight of Chinese cabbage was decreased as gravel contents in soil increased, and particularly severely decreased at 240 kg-N/ha. Yields of Chinese cabbage were remark-ably decreased at the rate of 60 kg-N/ha with 30% gravel content and 120 kg-N/ha with 50% gravel content. Most of Chinese cabbages were severely wilted by heavy N application at the rate of 240 kg-N/ha in the middle of growth stages regardless of gravel contents, while about 50% of Chinese cabbage showed wilting symptom in the treatment of more than 50% of gravel contents and 120 kg-N/ha. N content in leachate in-creased as gravel content and N application increased. The relationship between gravel content and N con-tents showed linear regression: N in leachate = 0.014(gravel content) -0.039 (r = 0.961). Particularly, NH₄-N contents in leachates with more than 30% gravel content and 240 kg-N/ha ranged from 139~339 mg/L. Chinese cabbage growth in loamy sand soil containing 30%, and 50% gravel contents could be adversely affected by N application at the rate of 240, and 120 kg-N/ha, respectively.

혈액 투석 환자에서 중심정맥 협착에 대한 스텐트 삽입술 : Wallstent Placement

임대승,노상필,이유선,정승현,김보영,이정우,강정아,김정희,이민수,정준용,최시완,정진옥,성인환,이강욱,신영태 충남대학교 의과대학 의학연구소 2002 충남의대잡지 Vol.29 No.1

Stenosis of central vein is a common complication arising after percutaneous subclavian vein catheter insertion performed for temporary vascular access in chronic renal failure patients undergoing hemodialysis. There are several treatment methods for the condition like percutaneous angioplasty(PTA), stent insertion, and surgery, but recent trend is toward PTA and stents. Among the patients diagnosed with chronic renal failure from March 1993 to May 2002 and undergoing hemodialysis through AV fistula, the 14 Patients in whom central vein stenosis arose were selected for the study. A total of 28 percutaneous interventions(5 PTA and 23 stent placement) were performed, and restenosis rate and the time taken till the restenosis in de novo lesions and instant lesions were compared. All 28 cases were operated successfully. The 14 cases that received both anigioplasty and stent placement initially. (de novo lesion : 14 cases), Among the 10 cases with de novo lesion that followed up more than 1 year, 3 cases are currently undergoing hemodialysis without restenosis, and the remaining 7 cases have recurred stenosis with the mean time to restenosis of 10.9 months. In the 7 cases in whom stenosis recurred, 11 interventions were done(instent lesion: 11 cases). 4 of these were using only ballon angioplasty with 100% restenosis rate and the mean time of 3 months until restenosis. The remaining 7 cases were using both balloon angioplasty and stent placement, also with 100% restenosis rate but with the mean time of 12 months until restenosis, which was later than the group receiving only balloon angioplasty. In treating the patients with central vein stenosis, stent placement seems to be more advantageous over PTA in terms of restenosis rate and the mean duration of patency. In the case of instent lesion, inserting the stent for the second time after stenosis recurred lengthened the duration of patency compared to performing balloon angioplasty alone.

본태성 고혈압에서 염산에포니디핀 (NZ-105, 핀테20정�)의 유효성 및 안전성 : 제3상 다기관 임상시험 The phaseⅢ multicenter open trial

배종화,손일석,강흥선,조정휘,강재헌,김성원,이선영,양윤준,김영식,선우성 대한간질학회 2003 대한간질학회지 Vol.9 No.1

The Advanced Analytical Method Through the Quantitative Comparative Study of Taurine in Feed Using LC-MS/MS

Yeong Jun Seon,Hyung Ju Seo,Jiye Yoon,Hyunjeong Cho,Sunghie Hong,Seung Hwa Le,Tae Woong Na 사단법인 한국질량분석학회 2022 Mass spectrometry letters Vol.13 No.4

Taurine is a type of sulfur-containing amino acid having a sulfate functional group, that is biosynthesized from cyste- ine. It is mainly distributed in high concentrations in animal tissues and is known to have various effects such as osmotic pres- sure control, calcium control, anti-inflammatory, antioxidant, and hepatocellular protection. Also, taurine deficiency causes a variety of symptoms, including visual impairment. In particular, in the case of cats, taurine is not biosynthesized and must be supplied through food, so it is classified as an essential amino acid. In this study, an analysis method using mass spectrometry was developed instead of the commonly used derivatization method to quickly, environmentally, and precisely analyze taurine in various animal feeds. The developed analytical method showed good linearity (R 2 > 0.99), accuracy (81.97-105.78%), and pre- cision (0.07-12.37%). In addition, the developed method was further verified through quantitative comparison with the derivat- ization method. This developed method was used in the determination of taurine in 20 animal feed samples obtained from South Korea. The levels of taurine found ranged from 81.53 to 6,743.53 mg/kg. The developed analysis method will be used for the detection and quantification of taurine in domestic feed.

저 골대사 질환의 위험성이 있는 환자에서 저칼슘 복막투석액의 임상적 유용성

조영준 ( Jo Yeong Jun ),최혁준 ( Choe Hyeog Jun ),조지형 ( Jo Ji Hyeong ),장민화 ( Jang Min Hwa ),신용봉 ( Sin Yong Bong ),박선희 ( Park Seon Hui ),이덕현 ( Lee Deog Hyeon ),조성 ( Jo Seong ),김용림 ( Kim Yong Lim ),조동규 ( Jo D 대한신장학회 2001 Kidney Research and Clinical Practice Vol.20 No.6

고칼슘혈증은 투석액내 칼슘농도가 3.5 mEq/L인 통상적인 복막투석액을 사용하면서 인흡수 억제제로 칼슘을 복용하는 지속성 외래 복막투석 환자에게서 흔히 관찰된다. 혈청 칼슘농도의 증가는 부갑상선 호르몬(iPTH)을 억제하여 저 골대사 질환(low-turnover bone disease)의 빈도를 높일 수 있다. 저자들은 저칼슘 복막투석액(Ca^(++) : 2.5 mEq/L)의 사용이 혈청 칼슘, iPTH및 기타 혈중 생화학적 표지자에 미치는 영향에 대해 알아보고자 본 연구를 시행하였다. 1996년 1월부터 1999년 12월말까지 본원에서 지속성 외래 복막투석을 시행 받은 환자 386명중 혈청 교정칼슘농도(혈청 알부민으로 교정한 칼슘농도)가 10.0 mg/dL을 초과하거나 iPTH가150 pg/mL 미만인 환자에게 8주간의 예비기간 이후 저칼슘 복막투석액을 사용하였다. 저칼슘 복막투석액을 사용하는 12개월의 관찰 기간동안 혈청 칼슘, 인 및 골표지자(iPTH, ALP)를 측정하였고 인흡수 억제제와 calcitriol 복용량의 변화를 조사하였다. 전체 386명 중 저칼슘 복막투석액을 사용한 환자는 46명(11.9%)이었으며 그 중 22명(5.7%)은 저칼슘 복막투석 시작 당시 고칼슘혈증(교정칼슘농도 >10.5 mg/dL)으로 관찰되었다. 관찰 기간동안 혈청 인농도는 차이가 없었으나 혈청 칼슘농도는 유의하게 감소하였다(10.5±1.4 vs 9.4±1.3 mg/dL, p<0.05). 혈청ALP농도(203.0±92.9 vs 257.2±103.4 U/L, p<0.05)와 iPTH 농도(92.7±128.8 vs 225.3±237.3 pg/mL, p<0.05)는 유의하게 증가되었다. 저칼슘 복막투석액을 사용하는 동안 인흡수 억제제 복용량의 유의한 차이는 없었으나 calcitriol 복용량은 유의하게 증가하였다(0.038±0.087vs 0.158±0.288 tablets/day, p<0.05). 저칼슘 복막투석액을 사용한 46명 중 6명이 표준 복막투석액으로 다시 전환하였으며, 그 이유는 iPTH의 과도한 증가가 3예, 저칼슘혈증이 2예, 부종이 1예였다. 결론적으로 저칼슘 복막투석액의 사용은 고칼슘혈증과 부갑상선 호르몬억제 소견이 있는 환자에서 혈청 칼슘은 감소시키고, 부갑상선 호르몬 농도와 ALP 농도는 증가시켜 고칼슘혈증과 저골대사 질환이 의심되는 지속성 외래 복막투석 환자에서 유용할 것으로 생각된다. Hypercalcemia is a common complication in CAPD patients treated with calcium-containing phosphate binders and using the standard dialysate(Ca^(++) : 3.5 mEq/L). Furthermore, the high calcium concentration in standard dialysate may have a suppressive effect on parathyroid hormone(iPTH) level, contributing to the high prevalence of low-turnover bone disease. We studied the effect of low calcium dialysate(Ca^(++) : 2.5 mEq/L) for those patients with high risk of lowturnover bone disease. Among 386 patients(1996. 1.- 1999. 12.) who had been stable on CAPD for at least 3 months, 46 patients were included in this study. The patients were divided into 3 groups on the basis of the iPTH levels(<150 pg/mL) and/or corrected serum calcium levels(>10 mg/dL) before the conversion to low calcium dialysate. Group 1(n=29), iPTH <150 pg/mL and Ca^(++) >10 mg/dL; Group 2 (n=14), iPTH <150 pg/mL and Ca^(++) <10 mg/dL; Group 3(n=3), iPTH >150 pg/mL and Ca^(++) >10 mg/ dL. During a 2-month run-in period, those patients were treated with standard dialysate. After that, a 12-month therapy with low calcium dialysate was followed. Biochemical data including calcium, phosphorus, iPTH and alkaline phosphatase were measured regularly and daily phosphate binder and calcitriol intake(pill counting) were assessed during the run-in and therapy period. We obtained the following results : the prevalence of hypercalcemia(Ca^(++) >10.5 mg/dL) was 5.7%(22/ 386 patients). Serum calcium levels decreased during the therapy period(12 months)(10.5±1.4 vs 9.4±1.3 mg/dL, p<0.05). Serum phosphorus levels remained unchanged. Mean serum alkaline phosphatase level increased(203.0±92.9 vs 257.2±103.4 U/L, p<0.05). Serum iPTH levels increased (92.7±128.8 vs 225.3± 237.3 pg/mL, p<0.05). The mean intake of oral phosphate binders was not significantly different between run-in period and therapy period. But calcitriol doses increased 0.038±0.087 at run-in period to 0.158± 0.288 tablets/person/day at therapy period(p<0.05). In the six patients, low calcium dialysate was converted to standard dialysate due to high iPTH level (n=3), symptomatic hypo calcemia(n=2), and uncontrolled edema(n=1). In conclusion, in the study of 46 patients over 12 month period, the usage of 2.5 mEq/L calcium dialysate resulted in a significant decrement in calcium levels and increased iPTH levels. Therefore, we propose that dialysis with a low calcium dialysate is an acceptable form of therapy for the patients with high risk of low-turnover bone disease showing hypercalcemia and low iPTH level. However, further study will be needed for evaluating the effect of low calcium dialysate in low-turnover bone disease.

포스터 발표 : 포스터 연제 ; 혈액투석증인 만성신부전환자에서 발생한 Reversible Posterior Leukoencephalopathy Sysdrome 1예

구영선 ( Gu Yeong Seon ),김도희 ( Kim Do Hui ),장윤경 ( Jang Yun Gyeong ),양종오 ( Yang Jong O ),강민규 ( Kang Min Gyu ),황평주 ( Hwang Pyeong Ju ),송창준 ( Song Chang Jun ),이강욱 ( Lee Gang Ug ),신영태 ( Sin Yeong Tae ) 대한신장학회 2000 춘계학술대회 초록집 Vol.19 No.2

포스터 발표 : 포스터 연제 ; 신이식후 무뇨소견을 보인 cyclosporin 기능적 신독성 1예

조영준 ( Jo Yeong Jun ),신용봉 ( Sin Yong Bong ),박선희 ( Park Seon Hui ),김준철 ( Kim Jun Cheol ),김찬덕 ( Kim Chan Deog ),백미영 ( Baeg Mi Yeong ),김용림 ( Kim Yong Lim ),조동규 ( Jo Dong Gyu ) 대한신장학회 1999 춘계학술대회 초록집 Vol.18 No.2