1.Longevity Science and Longevity Culture.
Journal of the Korean Medical Association 2001;44(8):806-812
No abstract available.
Longevity*
3.Longevity and Social Welfare.
Journal of the Korean Medical Association 1997;40(10):1329-1334
No abstract available.
Longevity*
;
Social Welfare*
4.Low-dose and High-dose of Mitomycin-C in Trabeculectomy.
Jae Jun LEE ; Ki Ho PARK ; Dong Ho YOUN
Journal of the Korean Ophthalmological Society 1996;37(4):622-627
The purpose of this study is to compare the effects of three different concentrations of mitomycin-C(MMC) as an adjunct therapy to trabeculectomy. We reviewed 26 patients(36 eyes) who underwent trabeculectomy in which MMC was applied intraoperatively. The application time was 5 minute, and concentration of MMC was 0.1mg/ml(n=10), 0.2mg/ml(n=17) and 0.41mg/ml(n=9) respectively. The mean IOP at postoperative 3 months was significantly lower in 0.4mg/ml group (10.4 +/- 5.5mmHg) than in the 0.2mg/ml group(16.1 +/- 4.7mmHg)(p<0.05). There was no statistical difference among the three groups in the success rate regardless of medication, the size and longevity of bleb. The postoperative hypotony(2 eyes) was noted in the 0.4mg/ml group. In conclusions, It is desirable to use the lowest concentration of MMC that will facilitate bleb formation.
Blister
;
Longevity
;
Mitomycin*
;
Trabeculectomy*
5.The longevity of immunofluorescent antibody in the patientsconfirmed as Tsutsugamushi disease.
Jeung Hoon LEE ; Beom Jin SUNG ; Tae Young YOUN ; Woo Hyun CHANG
Korean Journal of Infectious Diseases 1991;23(1):19-23
No abstract available.
Longevity*
;
Scrub Typhus*
6.Seed Germination of Gastrodia elata Using Symbiotic Fungi, Mycena osmundicola.
Yong Il KIM ; Kwang Joon CHANG ; Kang Hyeon KA ; Hyeon HUR ; In Pyo HONG ; Jae Ouk SHIM ; Tae Soo LEE ; Ji Yul LEE ; Min Woong LEE
Mycobiology 2006;34(2):79-82
The germination rate and longevity of seeds of Gastrodia elata Blume have been observed for 48 weeks using Mycena osmundicola strain H-21, one of fungi stimulating seed germination. Storage condition of post-harvest seeds was observed in the different temperature ranges of -30degrees C, -5degrees C, 5degrees C and 30degrees C for 48 weeks. After storage period of 48 weeks, the germination rate of G. elata was 65.7% at 5degrees C and 71.6% at -5degrees C, respectively. Although the germination rate of G. elata was 77.3% for 11 weeks at 25degrees C, the germination rate had been decreased gradually to 49.3% at 13 weeks, 0.3% at 23 weeks and then 0% at 25 weeks. The germination rate was reached to the level of 10% for 2 weeks at -30degrees C and then decreased to 0%.
Fungi*
;
Gastrodia*
;
Germination*
;
Longevity
7.A quantitative analysis about microleakage of all-in-one adhesives.
Yong Hee KANG ; Soo Il SHIN ; Dong Hoon SHIN
Journal of Korean Academy of Conservative Dentistry 2004;29(1):66-72
All-in-one adhesives were recently developed for reducing the techique sensitivity and chair time, but lots of concerns were made on bondability, longevity, and microleakage. The object of this study was to evaluate microleakage and marginal quality of all-in-one adhesives using electrochemical method and SEM analysis quantitatively. After making Class V cavities, they were bulk filled with Heliomolar(#A1) after surface treatment with three adhesives: Adper Prompt (Group A), One up bond F (Group O), Xeno III (Group X). Electrical conductivity (microamphere, microA) was checked two times: before and after cavity filling. Percentage of leaky margin was estimated from SEM image (x1,000). The data were statistically analysed: ANOVA and Paired T test for electrical conductivity, Kruskal-Wallis and Mann-Whitney test for marginal quality, Spearman's rho test for checking of relationships between 2 methods. The result were as follows: 1. There was no difference in microleakage between adhesive systems and every specimen showed some of microleakage after filling. 2. Microleakage was reduced about 70% with composite resin filling. 3. Marginal quality was the best in group A, decreasing among groups in the following order: group O, followed by group X. There were significant differences between group A and group X (p=0.015), and between group O and group X (p=0.019). 4. There was no relationship between the microleakage measured by electrochemical method and marginal quality measured by SEM analysis. Within the results of this study, there was no difference in microleakage among groups by electrical conductivity. However, significant difference in marginal quality was seen among groups. It was believed that these dissimilar results might be induced because of their own characteristics. Analysis of microleakage needs various methods for accuracy.
Adhesives*
;
Electric Conductivity
;
Longevity
9.The evaluation of clinical efficacy and longevity of home bleaching without combined application of In-office bleaching.
Byunk Gyu SHIN ; Sung Eun YANG
Journal of Korean Academy of Conservative Dentistry 2010;35(5):387-394
OBJECTIVES: The purpose of this study was to evaluate the whitening efficacy and longevity of home bleaching. MATERIALS AND METHODS: A total of 28 patients were divided into either experimental group (Opalescence F; 15% carbamide peroxide) or control group randomly. The patients in experimental group were instructed to wear individual trays applied with bleaching gel for 2 hours a day for 4 weeks. Any treatments weren't applied to the patients in control group. The color measurements of central incisors, lateral incisors & canines of upper and lower arch were recorded at base line, immediately after the finishment of treatmemt (4 weeks), 8 weeks and 12 weeks using Colorimeter (Chroma Meter, 2600d Konica Minolta co.) and Vitapan classical shade guide (Vita Zahnfabrik). RESULTS: A significantly stronger color change was observed for overall teeth samples in experimental group immediately after treatment (at 4 weeks) compared to ones in control group (p < 0.05). There was also a significant difference between baseline and 8 weeks or 12 weeks separately though color rebouncing phenomenon occurred as time went by (p < 0.05). CONCLUSIONS: The clinical effecacy and longevity of home bleaching without combined application of in-office bleaching was observed through this experiment.
Humans
;
Incisor
;
Longevity
;
Tooth
;
Urea
10.Low-dose chloroquine treatment extends the lifespan of aged rats.
Wei LI ; Zhiran ZOU ; Yusheng CAI ; Kuan YANG ; Si WANG ; Zunpeng LIU ; Lingling GENG ; Qun CHU ; Zhejun JI ; Piu CHAN ; Guang-Hui LIU ; Moshi SONG ; Jing QU ; Weiqi ZHANG
Protein & Cell 2022;13(6):454-461