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배상욱(Sang Wook Bai),정병하(Byung Ha Chung),양승철(Seung Chul Yang),이무상(Moo Sang Lee),박상원(Sang Won Park),김재욱(Jae Wook Kim) 대한산부인과학회 1998 Obstetrics & Gynecology Science Vol.41 No.11
Alteration in the hormone level associated with menstrual cycle influences the interaction between the urethra and bladder as well as detrusor function, maybe due to the common embryological origin of lower female genital and urinary tract. We tried to investigate the effect of the menstrual cycle on cystometric diagnosis through this retrospective study. 60 women with regular menstruation were enrolled in this study. The study groups were divided into 2 groups, Group I was women whose symptoms were not influenced by the menstrual cycle, Group II was women whose symptoms were adversely affected premenstrually. The majority of normal cystometric diagnosis were made in the luteal phase (Group I: 42.9% vs 4.4%, p<0.05; Group II: 50.0% vs 22.2%, p<0.05). But diagnosis of genuine stress incontinence, detrusor instability, mixed genuine stress incontinence and detrusor instability were frequently made in the follicular phase of mentruation. Normal cystometric diagnosis in the group II were more commom than the group II ( 36.8% vs 19.7%, p<0.05 ). The results of this study reveal that the timing of cystometric evaluation may influence the the detection of a positive diagnosis. In patients whose symptom are influenced by their menstrual cycle, the luteal phase may not be the correct time to make an accurate diagnosis.
배상욱 ( Sang Wook Bai ),( Yoo Jin Lee ),( Soo Rim Kim ),( Sei Kwang Kim ) 대한산부인과학회 2015 대한산부인과학회 학술대회 Vol.101 No.-
Objective: To demonstrate the significance of bladder outlet obstruction (800) in preoperative urodynamic studies (UDS) in women who have been diagnosed with pelvic floor dysfunction including pelvic organ prolapsed (POP) and stress urinary incontinence (SUI). Methods: The medical records of 150 patients with pelvic ~oor dysfunction who underwent preoperative UDS at Vensei University Health System from 2006 to 2012 were reviewed. Under the criteria of BOO, as a maximal flow rate in free-flow study (Qrrex) less than 12 mLJsec and a detrusor pressure at 0, in pressure-flow study (PdetOmax) higher than 20 cmH20 in UDS, they were divided into two groups: a group of 50 patients with BOO and a group of 100 patients without BOO. Comparisons were made between the patients with and without BOO in preoperative UDS. Results: In the POP-with-SUI group, 25 patients with BOO had lower mean Omax (10.0 vs. 25.4 mLJsec, P<O.OO1), higher PooIO, (49.6 vs. 21.5 cmH20, P<O.OO1), lower maximum cystometric capacity (422.7 vs. 454.0 mL, P=0.007), and higher postvoi-dal residual volume (44.3 vs. 21 .1 mL, P=0.021) than the patients without BOO. In the SUI-only group, the mean Omax was significantly lower in the 25 patients with BOO (9.4 vs. 25.4 mUsec, P< 0.001). The mean PdetQmax was significantly higher with BOO (39.6 vs. 25.4 cmHzO, P=0.OO4). In the univariate analyses, menopause, maximum cystornetric capacity, and cystoscopic bladder trabeculation were associated with BOO. Conclusion: In the univariate analysis, menopause, MCC and cystoscopic bladder trabeculation were associated with BOO. In the multivariate model, however, no significant association with BOO was found.
裵吉漢,金尙材,李容旭 대한보건협회 1982 대한보건연구 Vol.8 No.2
The growth inhibitory effects of Lactobacillus casei YIT 9018 on Mycobacterium tuberculosis and M. fortuitum were investigated in LM(Lactobacillus-Mycobacterium) broth which was newly formulated in order to culture both mycobacteria and lactobacilli simultaneously. 1. Fourty eight hour simultaneous cultivation of L. casei and M. tuberculosis H_37Rv resulted in total growth inhibition of 7.6×10 exp (7) cocultured tubercle bacilli, while viable cells of L. casei continuously increased and reacted 3.4×10 exp (11) from 9.2×10 exp (7) bacilli per ml of original inoculum. The viable cell number of M. fortuitum temporarily increased up to 6.4×10 exp (8)/ml from 4.4×10 exp (8)/rnl at 24 hourincubation but the numbers eventually decreased to 9.2×10 exp (7)/ml within 48 hours when the viable number of L. casei reached to their maximum 2.9×10 exp (11) from 4.4×10 exp (8)/ml of original inoculum, and total inhibition was observed at 72 hour-incubation. Meanwhile, the pH of LM broth in which L. casei and mycobacterial species were cocultivated also dropped to pH 3.80-3.95 from pH 6.60 within 48-72 hour incubation with the variation of viable cell numbers of bacteria tested. Decrease of the viable cell of mycobacterial species was closely related to decreasing pH value of medium due to increasing concentration of lactic acid produced by lactobacilli. 2. Whether growth inhibition of mycobacteria due to pH change of medium or to lactic acid, was investigated. Such facts were indirectly proved in serial tests. In sterilized saline solution which was adjusted to pH 3.85, 4.15, and 6.60 with HCI or lactic acid respectively, L. casei and mycobacteria were inoculated and incubated for 5 days at 37℃. The viable units of tested organisms at different pH's were investigated every 24 hours. In the pH 4.15 saline solution adjusted with lactic acid, the total growth inhibition of M. tuberculosis and M. fortuitum was observed within 24 and 72 hours respectively, while at the same pH adjusted with HCI, the growth of M. tuberculosis was inhibited within 48-72 hours, but cultivable cells of M. fortuitum remained as many as 6.18×10 exp (3)/ml even at pH 3.85. This clearly indicated that lactic acid played an important role in mycobacterial gowth inhibition when they were cocultured with lactobacilli.
裵吉漢,金信玉,金尙材,李容旭 대한보건협회 1983 대한보건연구 Vol.9 No.1
This study aimed at finding causal growth inhibitory effects of Lactobacillus casei YIT9018 on Mycobacterium fortuitum in LM broth medium. The results obtained were summarized as follows; 1) Direct growth inhibitory effects of L. casei on M. fortuitum was closely related to lowered pH due to lactic acid produced by lactobacilli. 2) Growth inhibitory effect on mycobacteria by lactic acid was more prominant than by hydrochloric acid even in identical pHs of medium. LM broth media neutralized with HC1 of which pH had been adjusted to 3.80 with lactic acid also showed significant growth inhibition on M. fortuitum. 3) Nondializable metabolites derived from culture filtrate of L. casei or L. casei plus M. foruitum did not show growth inhibitory effect on M. fortuitum even in concentration of 500㎍/㎖.
Long On-chip Dynamic Interconnect의 효율적인 구동을 위한 교차 연결형 Clocked Regenerator
이성욱(Sung-Wook Lee),김주성(Joo-Seong Kim),공배선(Bai-Sun Kong) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.11
This paper presents novel regenerative repeater called cross-coupled clocked regenerator (CCR). The proposed regenerator provides an improved switching speed with low power consumption for driving a long on-chip dynamic interconnect. Experimental results using a 0.18-㎛ CMOS technology indicate that the proposed regenerator archives power-delay production improvement of 43% over the conventional regenerator.