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Choe, H.,Kim, S.,Oh, J.,Nasir, A.,Kim, B.K.,Kim, K.M. Elsevier Publishing Services 2015 Marine genomics Vol.24 No.3
Kangiella geojedonensis KCTC 23420<SUP>T</SUP> is an aerobic, Gram-negative, non-motile, non-spore-forming, rod-shaped bacterium that was isolated from seawater off the southern coast of Korea. We here report the complete genome of K. geojedonensis KCTC 23420<SUP>T</SUP>, which consists of 2,495,242bp (G+C content of 43.78%) with 2,257 protein-coding genes, 41 tRNAs, 2 rRNA operons. The genome is smaller than the other closely related genomes, indicating that K. geojedonensis has recently experienced reductive evolution.
한국 농촌거주 정상인의 Leptospira Interrogans에 대한 항체보유율 현황
최강원,최성배,국윤호,장우현,우준희,박경희,강재승,차창룡,김양수,김석용,윤종구,김익상,이우곤,최명식,송영욱 대한감염학회 1988 감염 Vol.20 No.3
It has been well known that leptospiroisis is a one of the prevailing acute febrile diseases in Korea. In order to find out the incidence of past infection of L. interrogans among normal population, a total of 1,171 sera obtained from rural residents and tested by microscopic agglutination test. All of normal resident's sera were collected during July in 1987, just before epidemic season, at Keochang county(248 sera), at Wanju county(145 sera), at Wonseoung county(255 sera), at Cholwon county(411 sera) and at Kongju county(112 sera). Seropositive rate against L. interrogans among rural residents was 12.0% and ranged from 2.7% in Kongju county to 18.5% in Cholwon county. There was a higher seropositive rate in males and the majority of seropositives occurred in the age group over 30 yesrs. Icterohaemorrhagiae was a most commonly reacting serotype of L. interrogans and followed by CH-48 and Canicola. The sera reacted with Cynopteri, Ballum, Australis, and Pyrogenes were present also.
이정상,이문호,김성권,최강원,표희정,박정식 대한핵의학회 1979 핵의학 분자영상 Vol.13 No.1
당뇨병에서의 고혈압 및 신합병증에 따른 Renin Angiotensin-Aldosterone계의 동태를 밝히기 위하여 40예의 당뇨병 환자에서 기저 및 furosemide 정주 2시간 후의 PRA를 측정하였다. 1) 40예의 당뇨병 환자는 신합병증과 고혈압의 유무에 따라 4군으로 분류하였으며, 임상적인 합병증이 없는 Ⅰ군에는 15명, 신합병증이 있는 Ⅱ군에는 7명, 신합병증과 고혈압이 같이 있는 Ⅲ군에는 8명, 고혈압만 있는 Ⅳ군에는 10명의 환자가 속하였다. 2) 각 군의 24시간 요중 Na배설량의 평균치 사이에는 유의한 차이가 없었다. 3) 기저 PRA치는 Ⅰ군이 1.53±1.09ng/ml/hr(Mean±S.D), Ⅱ군이 0.63±0.59ng/ml/hr, Ⅲ군이 0.79±0.62ng/ml/hr, Ⅳ군이 1.11±0.80ng/ml/hr로서 Ⅱ군과 Ⅲ군은 Ⅰ군에 비하여 유의하게 저하되어 있으나(P$lt;0.05), 다른 군들 간에는 유의한 차를 볼 수 없었다. 4) furosemide 정주 2시간 후의 PRA치는 Ⅰ군이 2.72±1.96ng/ml/hr, Ⅱ군이 0.92±0.78ng/ml/hr, Ⅲ군은 1.03±0.76ng/ml/hr, Ⅳ군은 1.73±1.39ng/ml/hr로써 Ⅰ군과 Ⅱ군사이에서만 유의한 차이를 보이고(P$lt;0.05), 다른 당뇨병 환자군 사이에서는 유의한 차를 볼 수 없었다. 5) furosemide 정주에 의한 Renin 분필 자극시험에 대한 반응도 Ⅱ군과 Ⅲ군에서는 둔화되어 있는 양상을 보이나, 시험대상도 적고하여 통계적 유의성에는 미치지 못하였다. 이상의 성적에서 신합병증이 있는 당뇨병에서는 혈장 Renin활성이 저하되며 furosemide 정주에 의한 Renin 분필자극시험에 대한 반응도 둔화됨을 알 수 있었다. 또한 당뇨병성 신합병증에 의한 고혈압에서도 혈장 Renin활성은 저하되는 경향을 보여서 이 경우의 고혈압은 Renin이외의 다른 요인이 작용할 것으로 보인다. To evaluate the renin-angiotensin-aldosterone system in diabetes mellitus, basal plasma renin activity(PRA) and its response to intravenous furosemide were determined in 40 diabetic subjects. The diabetics were divided into 4 groups according to the pressence of nephropathy and/or hypertension. Uncomplicated diabetics(Group I) were taken as control group and the results of the other groups were compared to this group. In diabetics viith nephropathy alone(Group Ⅱ), and with nephropathy and hypertension (Group Ⅲ), basal PRA values were 0.63±0.59ng/ml/hr., and 0.79±0.62ng/ml/hr., respectively, both significantly lower than control group. (1.53±1.09ng/ml/hr.). (P$lt;0.05) In both of the above groups, the responses to intravenous furosemide tended to be blunted. On the other hand, in diabetics, with hypertension only (Group Ⅳ), the basal and stimulated PRA were not significantly different from control. Above results suggests that nephropathy may be one of the factors which suppress renin activity in diabetes me.
1987년 한국에서 발생한 렙토스피라병의 혈청역학적 조사
이증훈,박영수,이우곤,김석용,정선식,우준희,박성광,박경희,송영욱,김선영,기정일,최두혁,강성귀,김주완,최강원,김우열,최명식,최인학,장우현,윤성열 대한감염학회 1988 감염 Vol.20 No.3
Human leptospirosis was an unfamiliar disease in Korea until 1984 that outbreak of leptospirosis occurred among farmers and soldiers after field works for harvesting rice. During that time, Lee and Jo confirmed the first Korean cases of leptospirosis by serological test, isolation of causative agent and autopy findings. Afterward several outbreaks occurred also during autumn especially after flood in every years and some characterisitcs of leptospirosis in Korea such as clinical manifestations, serotypes and seroepidemiological features has been revealed by many investigators. Because of the major mode of transmission between rodents and human is by direct contact with leptospiral urine of rodents or contaminated soil by the urine, leptospirosis in Korea has been primarily a disease of person in occupations heavily exposed to contaminated soil or infected urine such as farmer, army and etc. Therefore it seems that leptospirosis is one of the main communicable diseases to be controlled urgently in Korea, for an agricultural people account for almost half of total Korean people. For clarifying the seroepidemiological patterns of human leptospirosis in Korea by sex, month region and main reacting serovars of L. interrogans among acute febrile disease occurred in 1987, 1,773 patient's sers with acute febrile episodes were tested by microagglutination test using 19 representative strains of leptospiral serogroup as antigen. All of those sera were collected from 10 collaborative clinics located in Kyunggi, Kangwon, Chungbuk, Chungnam, Chonbuk, Chonnam province and Seoul. The results wee summerized as follows. 1) Among 1,773 sera of patients with acute febrile episodes, 219 (12.4%) were seropositive to L. interrogans, 487(27.5%) to R. tsutsugamushi, 241(13.6%) to R.typhi and 160(90.0%) to Hantaan virus. 2) Among seropositives to L.interrogans, the male outnumbered the female, 65% and 35%. 3) For age distribution, 26.9% of seropositives to L.interrogans were fifties, 19.6% were forties, 9.1% were sixties, 5.9% were thirties and 4.1% were twenties. 4) Eighty three percent of seropositives had occurred between September and October in 1987 with a peak in September. 5) Main leptospiral serovars reactive to patient's sera were Icterohaemorrhagiae(54.3%), Canicola(31.0%), CH-48(13.2%), Tarassovi(0.9%)and Cynopteri(0.5%). 6) For regional distribution, 65.8% of seropositives to L.interrogans were residents from Chonbuk, 12.3% were Chonnam, 7.3% were Chungnam, 5.5% were Kyunggi and 1.4% were Kangwon.
Clomipramine block of the hERG K<sup>+</sup> channel: Accessibility to F656 and Y652
Jo, S.H.,Hong, H.K.,Chong, S.H.,Won, K.H.,Jung, S.J.,Choe, H. North-Holland ; Elsevier Science Ltd 2008 european journal of pharmacology Vol.592 No.1
Clomipramine is a tricyclic antidepressant for psychiatric disorders that can induce QT prolongation, which may lead to torsades de pointes. Since blockade of cardiac human ether-a-go-go-related gene (hERG) channels is an important cause of acquired long QT syndrome, we investigated the acute effects of clomipramine on hERG channels to determine the electrophysiological basis for its proarrhythmic potential. We examined the effects of clomipramine on the hERG channels expressed in Xenopus oocytes and HEK293 cells using two-microelectrode voltage-clamp and patch-clamp techniques. Clomipramine induced a concentration-dependent decrease in the current amplitude at the end of the voltage steps and hERG tail currents. The IC50 for clomipramine needed to block the hERG current in Xenopus oocytes decreased progressively relative to the degree of depolarization. The fractional electrical distance was estimated to be δ=0.83. The IC50 for the clomipramine-induced blockade of the hERG currents in HEK293 cells at 36 <SUP>o</SUP>C was 0.13 μM at +20 mV. Clomipramine affected the channels in the activated and inactivated states but not in the closed states. The clomipramine-induced blockade of hERG was found to be use-dependent, exhibiting a more rapid onset and a greater steady-state block at the higher frequencies of activation. The S6 domain mutations, Y652A and F656A partially attenuated (Y652A) or abolished (F656A) the hERG-current blockade. These results suggest that clomipramine is a blocker of the hERG channels, providing a molecular mechanism for the arrhythmogenic side effects during the clinical administration of clomipramine.