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      • KCI등재

        Overexpression of Zoysia ZjCIGR1 gene confers cold stress resistance to zoysiagrass

        Yang‑Ji Kim,Dae‑Hwa Yang,Mi‑Young Park,Hyeon‑Jin Sun,Pill‑Soon Song,Hong‑Gyu Kang,Seok‑Cheol Suh,Yong‑Eok Lee,이효연 한국식물생명공학회 2020 Plant biotechnology reports Vol.14 No.1

        Zoysia japonica Steud. is a warm-season lawn grass popular in Korea and elsewhere. They are cultivated in many places such as river banks, roadside, and play grounds. However, there still is a disadvantage of frequent mowing, and the grass grows poorly under the chilly conditions. To develop a grass variety that circumvents these drawbacks, we cloned the chitininducible gibberellins-responsive1 gene (CIGR1) from zoysiagrass. The full length of the ZjCIGR1 (Zj; Zoysia japonica Steud.) gene was obtained by 5′/3′ RACE PCR and the phylogenetic tree showed that it belonged to the CIGR1-subgroup in the PAT1-group of GRAS protein family. Expression of the ZjCIGR1 in wild-type plants was confirmed in roots, meristems, leaves, and flowers, especially high in the flowers. The transgenic zoysiagrass was confirmed by PCR using gene-specific primers, phosphinothricin-acetyl-transferase (PAT) strip test, and Southern blot analysis. ZjCIGR1-overexpressing plants acquired tolerance to cold stress displaying morphological phenotypes characteristic of stress resistance. In addition, in the transformants, expression of the ZjCIGR1 as well as cold-regulated (COR) gene was increased compared to the wild-type plants under cold stress condition. These results suggest that ZjCIGR1 gene is an important candidate for regulating cold stress resistance.

      • SCISCIESCOPUS

        Identification of a sensitive urinary biomarker, selenium-binding protein 1, for early detection of acute kidney injury

        Kim, Kyeong Seok,Yang, Hun Yong,Song, Hosup,Kang, Ye Rim,Kwon, JiHoon,An, JiHye,Son, Ji Yeon,Kwack, Seung Jun,Kim, Young-Mi,Bae, Ok-Nam,Ahn, Mee-Young,Lee, Jaewon,Yoon, Sungpil,Lee, Byung μ,Kim, Hyung TAYLOR & FRANCIS 2017 Journal of Toxicology and Environmental Health Vol.80 No.9

        <P>Acute kidney injury (AKI) is associated with increased mortality rate in patients but clinically available biomarkers for disease detection are currently not available. Recently, a new biomarker, selenium-binding protein 1 (SBP1), was identified for detection of nephrotoxicity using proteomic analysis. The aim of this study was to assess the sensitivity of urinary SBP1 levels as an early detection of AKI using animal models such as cisplatin or ischemia/reperfusion (I/R). Sprague-Dawley rats were injected with cisplatin (6 mg/kg, once i.p.) and sacrificed at 1, 3, or 5 days after treatment. Ischemia was achieved by bilaterally occluding both kidneys with a microvascular clamp for 45 min and verified visually by a change in tissue color. After post-reperfusion, urine samples were collected at 9, 24, and 48 hr intervals. Urinary excretion of protein-based biomarkers was measured by Western blot analysis. In cisplatin-treated rats, mild histopathologic alterations were noted at day 1 which became severe at day 3. Blood urea nitrogen (BUN) and serum creatinine (SCr) levels were significantly increased at day 3. Levels of urinary excretion of SBP1, neutrophil gelatinase-associated lipocalin (NGAL), and a tissue inhibitor of metalloproteinase-1 (TIMP-1) were markedly elevated at day 3 and 5 following drug treatment. In the vehicle-treated I/R group, serum levels of BUN and SCr and AST activity were significantly increased compared to sham. Urinary excretion of SBP1 and NGAL rose markedly following I/R. The urinary levels of SBP1, NGAL, TIMP-1, and KIM-1 proteins excreted by AKI patients and normal subjects were compared. Among these proteins, a marked rise in SBP1 was observed in urine of patients with AKI compared to normal subjects. Based upon receiver-operator curves (ROC), SBP1 displayed a higher area under the curve (AUC) scores than levels of SCr, BUN, total protein, and glucose. In particular, SBP1 protein was readily detected in small amounts of urine without purification. Data thus indicate that urinary excretion of SBP1 may be useful as a reliable biomarker for early diagnosis of AKI in patients.</P>

      • MCR에 의한 혐기성 소화에 대한 암모니아의 영향

        김양지,김춘미,김성일,김종수 선문대학교 ·중소기업기술지원연구소 2002 선문공대 연구/기술 논문집 Vol.7 No.1

        혐기성 소화에서 미생물에 저해/독성 물질로 알려진 암모니아의 농도와 식종원에 따른 영향을 MCR(Master Culture Reactor)을 이용하여 회분식으로 분석하였다. 식종원은 축간농가 축산폐수 집수조의 침전슬러지 그리고 하수종말처리장 혐기성 소화조 잉여슬러지를 사용하였다. 식종원에 상관없이 암모니아는 1,500㎎NH_4-N/L에서 COD 제거율과 가스생성율로 측정된 혐기성 미생물의 활성에 저해영향을 주기 시작하여 2,500㎎NH_4-N/L에서 더욱 심하였다. 암모니아 저해 농도 범위에서 휘발성 유기산의 농도는 50㎎/L 범위로 유지되므로 메탄생성균 뿐만아니라 산생성균도 저해영향을 받는 것으로 나타났다. 축산폐수 집수조 침전슬러지로 식종된 경우 암모니아 2,500㎎NH_4-N/L 농도 범위 이상으로 운전하여도 COD 제거율과 가스생성율은 일정하게 나타났지만 하수종말처리장 혐기성 소화조 잉여슬러지로 식종된 경우 암모니아 농도가 증가할수록 COD 제거율과 가스생성율은 감소하였다. 결과적으로 암모니아에 장기간 순응된 축산폐수 집수조의 침전슬러지로 식종한 경우 암모니아의 저해 농도에 대하여 적응도 빨랐으며 저해영향도 적음을 알 수 있었다. The influence of ammonia and the sources of seeding on anaerobic digestion were investigated by batch operation of MCR(master culture reactor). The sources of seeding on anaerobic digestion were from swine wastewater collection pit and anaerobic digestion sludge of a municipal sewage treatment plant. The inhibition effects of ammonia on anaerobic microorganisms were initiated at ammonia concentration of 1,500 ㎎NH_4-N/L and the effects were increased by increasing ammonia concentration upto 2,500 ㎎NH_4-N/L regardless the sources of seeding as evidenced by decreases in COD removal efficiencies and biogas yields. The inhibition occurred to not only methanogens but also acidogens since the concentration of volatile fatty acids was maintained at 50 ㎎/L during the batch operations of MCR. The COD removal efficiency and biogas yield were maintained constantly while increasing ammonia concentration upto 2,500 ㎎NH_4-N/L when swine wastewater collection pit was used as seeding; however, those were decreased while increasing ammonia concentration when anaerobic digestion sludge was used as seeding. The results indicate that the seeding acclimated to high concentrations of ammonia for long time was easy in adaptation to high ammonia concentration and less subjective to ammonia inhibitory effects.

      • KCI등재

        고삼투압성 비케톤성 상태의 예후인자

        안성훈,김양원,김미란,진헌철,안지영,이상래,류석용,김홍용,김성준,이병권,김경환 대한응급의학회 2001 대한응급의학회지 Vol.12 No.2

        Background: A hyperosmolar nonketotic state has been known to have a high mortality, and even now, despite this high mortality, only a few studies of this disease have been performed. We studied the prognostic factors for the hyperosmolar nonketotic state. Methods: We retrospectively studied the cases of 40 patients who were in a hypersomolar nonketotic state when admitted to Sanggye Paik Hospital during the 6-year Period from 1995 through 2000. We divided the hyperosmolar nonketotic patients into two groups, the complete recovery group and the incomplete recovery group, and compared the clinical features, the laboratory findings, and the precipitating factors between two groups. Results: 1) A total of 40 patients were studied: 24 in the complete recovery group and 16 patients in the incomplete recovery group. The mortality rate was 32.5%. 2) No significant statistical difference existed among the clinical features of the two groups, except for the sex(p<0.01). 3) Among the laboratory findings of both groups, analysis revealed that the effective osmolarity was significantly higher among those in the incomplete recovery group(p<0.01). Serum sodium concentration was also significantly higher among those in the incomplete recovery group(p<0.01). Serum creatinine was also significantly higher among those in the incomplete recovery group(p<0.05). Serum bicarbonate concentration, on the other hand, was significantly lower among those in that group(p<0.05).4) Infection was identified as the most common precipitating factor(62.5%). Among the precipitating factors of the two groups, there were significant statistical difference in pneumonia, UTI, and inappropriate glucose control. 5) A significant statistical difference existed among the initial level of consciousness of both groups(p<0.05). 6) The only significant independent factor responsible for prognosis of nonketotic hyperosmolar state patients was the sex. Conclusion: The sex was only significant independent prognostic factor of nonketotic hyperosmolar state patients.

      • KCI등재후보
      • 도시거주자의 혈중 카드뮴 농도와 간 및 신장 기능과의 상관성 평가

        김호현,임영욱,임종한,양지연,신동천 한국환경독성학회 2003 환경독성보건학회지 Vol.18 No.1

        The possibility that liver and kidney function is adversely affected by current levels of environmental exposure to cadmium (Cd) as investigated in adult men and women in the general population in Seoul. From February to August in 2001, blood and morning spot urine samples were collected from 136 not occupationally exposed group (age range 20~75 years) at 4 survey sites throughout Seoul. Liver and kidney function parameters in serum and urine were examined by conventional methods. The questionnaire included factors, i.e. sex, age, smoking, alcohol, diet habit etc. The geometric mean values for Cd in blood (Cd-B) were 1.43 μg/l. It seemed prudent to conclude that liver and kidney function as not disturbed by the current environmental exposure to Cd in study.

      • KCI등재

        혐기성 소화에 대한 식종원 및 암모니아 농도의 영향

        김양지,김성일,신범식,안기섭,김종수 한국환경농학회 2004 한국환경농학회지 Vol.23 No.1

        혐기성 소화에서 미생물에 저해/독성 물질로 알려진 암모니아의 농도와 식종원에 따른 영향 을 회분식 반응기를 이용하여 분석하였다. 식종원은 고농도의 암모니아에 장기간 적응된 축 산농가 축산폐수 집수조의 슬러지 그리고 저농도의 암모니아에 노출된 하수종말처리장 혐기 성 소화조 슬러지를 사용해서 COD 제거율과 biogas 발생량으로 측정된 혐기성 미생물의 활성에 저해영향을 주기 시작하여 3,500 ㎎-N/L에서는 더욱 심하였다. 암모니아 저해 농도 범위에서 휘발성 유기산의 농도는 50㎎/L 범위로 유지되므로 메탄생성균 뿐만 아니라 산생 겅균도 저해영향을 받는 것으로 나타났다. 축산폐수 집수조 슬러지로 식종된 경우 암모니아 농도가 TAN으로 2,500∼3,500 ㎎-N/L 범위에서도 COD 제거율과 biogas 발생량의 감소폭 은 미미하였으나, 하수종말처리장 혐기성 소화조 슬러지로 식종된 경우 암모니아 농도가 증 가할수록 COD 제거율과 biogas 발생량은 큰 폭으로 감소하였다. 결과적으로 암모니아에 장 기간 순응된 슬러지로 식종한 경우 암모니아의 저해 농도에 대하여 적응도 빨랐으며 저해영 양도 적었다. The seeding sources and concentration of ammonia on anaerobic digestion were investigated by batch culture bioreactors. The sourcces of seeding on anaerobic digestion were from swine wastewater collection pit of a hog raising farm and from anaerobic digestion sludge of a municipal sewage treatment plant. The inhibition of ammonia on anaerobic microoganisms was initiated at ammonia concentration of 1,500 ㎎NH₄-N/L and it s effect was increased by increasing ammonia concentration up to 3,500 ㎎NH₄-N/L, regardless the sources of seeding as evidenced by decreases in COD removal efficiencies and biogas yields. The inhibition occurred to not only methanogens but also acidogens since the concentration of volatile fatty acids was maintained at 50 ㎎/L. The COD removal efficiency and biogas yield were maintained constantly while increasing ammonia concentration up to 3,500 ㎎NH₄-N/L when swine wastewater collection pit was used as a seeding; however, those were decreased while increase ammonia concentration when anaerobic digestion sludge was used as a seeding. The results indicate that the seeding acclimated to high concentrations of ammonia for long time was easy in adaptation to high ammonia concentration and less subjective to ammonia inhibitory effects.

      • KCI등재

        난관복원술의 성공율을 높이는 제반여건의 고찰

        김종덕,두재균,류철희,차경연,양재이 대한산부인과학회 1991 Obstetrics & Gynecology Science Vol.34 No.6

        난관복원술의 성공율을 높이는 제반 여건을 알아보기 위하여 1982년 3월부터 1990년 2월까지 만 8년 동안 전북대학교병원 산부인과 불임크리닉에 내원하여서 미세수술을 이용한 난과복원술을 시행받은 총 116명중 6개월이상이 추적조사가 가능하였던 106명의 예를 분석하여 다음과 같은 결론을 얻었다. 1. 난관복원술후 임신성공율은 추적조사가 가능하였던 106명중 90명(84.9%)이었다. 2. 난관복원술의 동기는 자녀사망이 전체 평균 65.1로 가장 많았으나 1987년이후부터는 재혼(24.6%)과 심경의 변화(20.0%) 등이 증가하여 서구화되는 경향을 보여주고 있었다. 3. 난관복원술후 임신군의 평균연령은 28.5세, 비임신군은 30.3세이었다(p$lt;0.05). 4. 불임수술후 난관복원술까지의 평균기간은 임신군에서 35.5개월, 비임신군에서 42.4개월로 임신군에서 그 기간이 짧았다(p$lt;0.05). 5. 임신성공율에 따른 복원술후 난관 길이는 임신군 8.3 cm, 비임신군 6.8 cm이었다(p$lt;0.05). 6. 불임수술 방법에 따른 결과는 Falope ring군이 난관의 길이도 가장 길고 임신성공율도 91.7%로 가장 높았다(p$lt;0.05). 7. 난관복원술 부위에 따른 임신성공율은 팽대부-팽대부, 자궁각부-팽대부, 협부-협부, 협부-팽대부순이었다(p$lt;0.05). 8. 난관복원술후의 임신하기까지의 기간은 임신군에서 1년이내가 95.5%로 가장 높았으며 2년이후에는 1예도 없었다. 9. 난관복원술후 난관임신 발생율은 1명(0.9%)이었다. 10. 본 교실에서 고안하여 사용하고 있는 Kim`s clamp와 Doo`s microirrigator 등은 난관성형술에 있어서 아주 유용한 기구로 사료되었다. For evaluation of factors that influence the success rate of tubal reversal, 116 cases of microsurgical reversal were investigated, which were performed at the infertility clinic in the Department of Obstetrics and Gynecology, Chonbuk National University Hospital from March 1982 to February 1990. 106 cases were able to follow up more than 6 months among these 116 cases of tubal reversal patients. The results were as follows; 1. The pregnancy rate was 84.9%(90 patients) in 106 cases of tubal reversal. 2. The most common incentive was the loss of their children(75.5%), but since 1987 remarriage(24.6%) and change of marital attitude(20.0%) were increasing steadily. 3. After tubal reversal, the mean age of pregnant patients was 28.5 years and that of non-pregnant patients was 30.3 years(p$lt;0.05). 4. The time interval between the sterilization and the tubal reversal was 35.5 months in pregnancy groups, 42.4 months in non-pregnancy groups(p$lt;0.05). 5. The mean length of reconstructed tube was 8.3 cm in pregnancy patients, 6.8 cm in non-pregnant patients(p$lt;0.05). 6. Referring to the sterilization types, the pregnancy rate was higher and the length of reconstructed tube was longer in those who underwent tubal ligation with Falope ring. 7. Referring to the site of anastomosis, the pregnancy rate was higher in ampulloampullar, cornu-ampullary, isthmo-isthmic anastomosis than other group(p$lt;0.05). 8. The pregnancy rate within the first year after tubal reversal was 95.5%, but no case after 2 years was noted. 9. Postoperative tubal pregnancy developed in one case(0.9%) after tubal reversal. 10. Kim`s clamp and Doo`s microirrigator were considered to be valuable instruments in tubal surgery.

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