한국 정신장애의 역학 조사 연구[I] : 각 정신장애의 유병률

조맹제,함봉진,김장규,박강규,정은기,서동우,김선욱,조성진,이준영,홍진표,최용성,박종익,이동우,이기철,배재남,신정호,정인원,박종한,배안,이충경 大韓神經精神醫學會 2004 신경정신의학 Vol.43 No.4

Objectives : This study aims to estimate the prevalence of the DSM-IV psychiatric disorders in Korean population using the Korean version of Composite International Diagnostic Interview (K-CIDI). Methods : Subjects were selected by taking multi-stage, cluster samples of 7,867 adult household residents, 18 to 64 years of age, in ten catchment areas. Total 78 trained interviewers administered the K-CIDI to the selected respondents, from June 1 to November30,2001. Results : Total 6,275 respondents completed the interview. Some 33.5% of respondents reported at least one lifetime disorder, 20.6% reported at least one-year disorder, and 16.7% reported at least one-month disorder. The most common lifetime disorders were alcohol abuse/dependence (17.24%), nicotine dependence/withdrawal (11.19%), specific phobia (5.16%), and major de-pressive disorder (4.25%). The lifetime prevalence of substance abuse/dependence (0.25%) and schizophrenia (0.16%) was very low. Nicotine and alcohol use disorder showed very high male/female ratio. Mood disorder and anxiety disorder were more prevalent among female than male. Conclusion : The prevalence of psychiatric disorders was high. In comparison with other studies, remarkable differences in distributions of psychiatric disorders across the areas and times were observed.

열공형과 비열공형 피질하 혈관성 치매에서 위험인자의 차이에 관한 비교 연구

배희준,정지향,유경호,나덕렬,김상윤,최경규,양동원,손의주,이상도,김재우,박경원,김응규,이재홍,박미영,한일우,함동석,최문성,하충건,최성혜,이애영,이병철,한설희 대한치매학회 2003 Dementia and Neurocognitive Disorders Vol.2 No.2

Backgrounds and Objectives: Vascular dementia is a group of dementing disoders arising from various stroke syndrome. Among these. subcortical ischemic vascular dementia (SIVD) is regarded as a relatively distinct clinical entity. However, MRI patterns of SIVD are not homogenous. In some patients, lacunes are dominant, and in others, subcortical white matter changes are. This study was designed to compare risk factor profiles between SIVD with and without multiple lacunes. Methods: We divided 47 subjects (22 males, mean age. 68 years) recruited from VADAPET (Multicenter Trial For Evaluation Of The Changes In the PET Images Of Subcortical Vascular Dementia Patient) study into two groups one with more than 5 lacunes in deep gray matter (lacune group) and the other with 5 or less(non-lacune group) Clinical characteristics and laboratory findings of two groups were compared. Results: Nineteen of 47 patients (40%) belonged to the lacune group. The lacune and non-lacune groups d d not differ in the following variables: age, hypertension, diabetes mellitus, hyperlipidemia heart disease, history of stroke or TIA, history of trauma or major surgery, family history of hypertension stroke, or dementia, age at diagnosis of dementia, body mass index, white blood cell count, ESR, CRP, fibrinogen, hemoglobin A1C, total cholesterol. LDL cholesterol creatinine, proteinuria, glucosuria, and microhematuria. However, male sex, smoking alcohol. hemoglobin, and HDL cholesterol were possibly associated more with lacune group SIVD than with non-lacune group (p<0 1) Multivariate analyses revealed that smoking, hemoglobin, and HDL cholesterol were independent predictors of SIVD with multiple lacunes Conclusion: Our study suggests that SIVD with multiple lacunes may be significantly different in smoking habits hemoglobin, and HDL cholesterol from SIVD without multiple lacunes.

C6 glia 세포에서 유도성 Nitric Oxide Synthase 유전자 발현조절에 관한 연구

배진영,허강민,배소현,박지선,이충재,이재흔,석정호 충남대학교 의과대학 의학연구소 2003 충남의대잡지 Vol.30 No.1

To investigate transcriptional regulation of iNOS gene by LPS and cytokines, the production of NO, expression of iNOS mRNA and protein, binding activity of nuclear factor-kappa B(NF-kB), and promoter activity of iNOS gene were examined in rat C6 glial cells. LPS, interferon-gamma(IFN-γ), and tumor necrosis factor-alpha (TNF-α) stimulated the production of NO, which was increased synergistically by co-treatment. By the treatment of LPS, iNOS mRNA expression was initiated at 1 h, markedly increased by 3 h, and decreased gradually afterward. iNOS mRNA expression was markedly enhanced by mixture of LPS, IFN-γ and TNF-α. iNOS protein synthesis was increased by the treatment of mixture LPS and cytokine mixture. Treatment of LPS stimulated NF-kB activation, and the activation reached to the maximum level at 30 min, and the treatment of mixture of LPS and cytokines increased the activation. To determine the effect of NF-kB binding activity on iNOS promoter activation, CAT assay was performed. iNOS promoter activity was increased by the treatment with LPS for 5.5 h, and further increased by the combined treatment with LPS and cytokines. These results suggest that NF-kB activation by LPS and cytokines may play a significant role in the induction of the iNOS gene.

Alginate 배양내에서 Transglutaminase가 연골막세포에 미치는 영향

박정선,공차배,김충현,안현정,정미현,성상철,김희중,조현철,이상훈,이명철 대한정형외과연구학회 2003 대한정형외과연구학회지 Vol.6 No.2

신경교세포 및 RAW 264.7 세포에서 Protein kinase의 활성에 의한 유도성 Nitric oxide synthase의 발현

박상철,노삼길,배소현,박지선,이충재,허강민,석정호,이재흔 충남대학교 의학연구소 2003 충남의대잡지 Vol.30 No.2

NO(nitric oxide) plays an important role as neurotransmitter or cytokine, and pathologic factor for some diseases by the large amount production with iNOS(inducible NO synthase) expression in macrophages or glial cells. The expression of iNOS is regulated by various cytokines, protein kinases and transcription factors. In this experiment, to investigate the roles of progein kinase and NF-kB for iNOS expression, the effects of PMA(phorbol 12-myristate 13-acetate), cAMP, and various protein kinase inhibitors on LPS(lipopolysaccharide)-induced iNOS mRNAN expression and nuclear NF-kB binding complex were examined in C6 glial cells and RAW 264.7 cells. In C6 glial cells, iNOS mRNA expression by LPS was induced from 1 hour and peak at 3 hour after treatment. In RAW 264.7 cells, the mRNA was observed from 3 hour and peak at 6 hour. PMA enhanced markedly LPS-induced iNOS mRNA expression and NF-kB binding complex in C6 glial cells, but did not much influence on LPS-induced iNOS mRNA expression in RAW 264.7 cells, in spite of increased LPS-induced NF-kB binding complex at 30 min. cAMP(dibutyryl cAMP) did not much influence on LPS-induced iNOS mRNA expression, by increased LPS-induced NF-kB binding complex in C6 glial cells. However, in RAW 264.7 cells, cAMP increased slightly LPS-induced iNOS mRNA expression without change of NF-kB binding complex. Staurosporine did not influence on LPS-induced iNOS mRNA expression and NF-kB binding complex in C6 glial cells, but in RAW 264.7 cells, decreased LPS-induced iNOS mRNA expression and NF-kB binding complex. Ro-31-8220 did not much influence on LPS-induced iNOS mRNA expression and NF-kB binding complex in C6 glial cells, but in RAW 264.7 cells, decreased significantly LPS-induced iNOS mRNA expression in spite of increased LPS-induced NF-kB binding complex for 3hours. G 6976 did not much influence on LPS-induced iNOS mRNA expression with decreased NF-kB binding complex in C6 glial cells, but in RAW 264.7 cells, decreased iNOS mRNA expression without influence on LPS-induced NF-kB binding complex. Genistein did not influence on LPS-induced iNOS mRNA expression and NF-kB binding complex in C6 glial cells, but in RAW 264.7 cells, decreased LPS-induced iNOS mRNA expression inspite of increased NF-kB binding complex. These results suggest that LPS-induced regulation of iNOS expression or NF-kB activity in C6 glial cells, might be different from RAW 264.7 cells through various protein kinases or other factors.

일차배양된 설치류 호흡기 상피세포로부터의 점액소 분비에 대한 수종 약물의 영향

이충재,석정호,이재흔,허강민,박지선,배소현,노삼길,박상철 충남대학교 의학연구소 2003 충남의대잡지 Vol.30 No.2

1. PKC activator인 PMA는 일차배양 HTSE세포로부터의 뮤신분비를 0.1μM 농도에서 30%, 1μM 농도에서 80% 가량 증가시켰다. 2. 식물 유래 성분으로, flavonoid의 일종인 TFR은 일치배양 HTSE 세포로부터의 뮤신분비를 10μM 농도에서 50%, 100μM 농도에서 80% 가량 증가시켰다. 3. 양이온성 폴리펩티드인 PLL 및 PLA는 일차 배양 HTSE 세포로부터의 뮤신분비를 0.01 - 10μM 농도에서 용량의존적으로 감소시켰다. 4. 결론적으로, 본 연구에서 얻어진 결과들은 새로운 거담제 및 점액용해제나 단백분해 효소제가 아닌 호흡기 류신의 생성/분비를 조절해 줄 수 있는 신개념의 약물을 개발함에 있어 극히 일부분이나마 단서를 제공하고 있다고 하루 수 있을 것이다. In the present study, we tried to investigate whether phorbol myristate acetate(PMA), trihydroxymethoxy-flavanone rutinoside(TFR) and cationic polypeptides significantly affect mucin release(secretion) from cultured hamster tracheal surface epithelial cells. Confluent primary hamster tracheal surface epithelial (HTSE) cells were metabolically radiolabeled with 3H-glucosamine for 24 hr and chased for 30 min in the presence of each agent to assess the effect on 3H-mucin release. The results were as follows : (1) Both PMA and TFR significantly increased mucin release from cultured HTSE cells ; (2) Cationic polypeptides including po1y-L-lysine(PLL, mw 7,500) and poly-L-arginine(PLA, mw 10,800) significantly inhibited mucin release from cultured HTSE cells, in a dose-dependent manner. This finding suggests us that PMA and TFR be further studied for the possible use as mild expectorants and cationic polypeptides might function as a regulator for hyper-secretion of mucus, both by direct acting on airway mucin-secreting cells, during the treatment of chronic airway diseases.

칼슘 통로 봉쇄제가 Pilocarpine에 의한 경련 및 기억장애에 미치는 영향

한형수,배현혜,박정숙,김중영 慶北大學校 醫科大學 1996 慶北醫大誌 Vol.37 No.3

목적 : 칼슘 통로 봉쇄제인 nifedipine과 flunarizine이 pilocarpine으로 유발된 경련의 발생과 뇌 조직 손상으로 인한 기억력 저하에 어떤 영향을 미치는지 연구하고자 하였다. 대상 및 방법 : ICR계의 생쥐 수컷을 사용하여 pilocarpone 투여후 6단계로 나누어 경련발작을 관찰하였으며, nifedipine과 flunarizine 전처치후 pilocarpine 투여에 따른 항경련작용을 측정하였다. Working memory를 통하여 기억력검사를 실시하였다. 결과 : nifedipine과 flunarigine 두 약물은 모두 경련 강도를 감소시켰고 flunarizine은 경련 시작 시간도 지연시켜 항경련 작용이 있음을 보였다. 칼슘 통로 봉쇄제는 주로 3일에서 10일 사이에 투여한 경우에 pilocarpine에 의해 기억력이 저하되는 것을 억제하는 것으로 나타났다. 결론 : 이상의 실험 결과에서 칼슘 통로 봉쇄제는 pilocarpine에 의한 경련 억제 작용과 기억력 저하를 억제할 수 있는 작용을 가지고 있음을 확인하였다. The effect of calcium channel blockers, nifedipine and flunarizine, on the pilocarpine-induced seizure and neuronal damage-induced memory deficit in mice was studied. After pretreatment of nifedipine or flunarizine, pilocarpine was administered intraperitoneally. Both drugs attenuated behavioral seizure activity and delayed onset of seizure activity. Memory was tested with working memory version of Morris water mazein 20 days following pilocarpine treatment and showed memory deficit. This deficit in memory was prevented when nifedipine or flunarizine were given during 3 to 6 day or 7 to 10 days after pilocarpine treatment. These results show that calcium channel blockers have anticonvulsant property and depress on pilocarpine-induced memory deficit.

Anisotropic lattice thermal expansion of uranium-based metallic fuels: A high-temperature X-ray diffraction study

Park, Jeongmi,Cho, Su Yeon,Youn, Young-Sang,Lee, Jeongmook,Kim, Jong-Yun,Park, Seo-Hyeon,Bae, Sang-Eun,Kuk, Seoung Woo,Park, Jeong-Yong,Rhee, Choong Kyun,Lim, Sang Ho Elsevier 2019 Journal of Nuclear Materials Vol.527 No.-

<P><B>Abstract</B></P> <P>We characterized the lattice parameter and phase transformation behaviors of six uranium-based metallic fuels in the temperature range 303–1173 K using <I>in situ</I> high-temperature X-ray diffraction (HT-XRD). In all of the fuels, α-U crystal structure almost vanished at 1023 K while UO<SUB>2</SUB> crystal structure started forming at 843 K. Pawley refinement of HT-XRD data revealed anisotropic lattice thermal expansion with increases along the <I>a</I>- and <I>c</I>-axes upon annealing in all the metallic fuels. Furthermore, we confirmed that rare-earth elements (Nd, Ce, Pr, and La) contained in the U–10Zr metallic fuel hardly influenced the thermal behavior of the lattice parameters.</P>

유기농경지 논토양의 미생물 특성조사

박충배(Choong-Bae Park),홍승길(SeungGil Hong),박광래(Kwang-Lai Park),이상범(Sang-Beom Lee),이초롱(Chorong Lee),김진호(Jinho Kim),김석철(Seok-Cheol Kim) 한국토양비료학회 2015 한국토양비료학회 학술발표회 초록집 Vol.2015 No.5

한ㆍ중 물류협력방안에 관한 연구

이충배(Choong-bae Lee),방희석(Hee-soek Bang),이정민(Jung-min Lee),박근식(Keun-sik Park),박선영(Sun-young Park) 한국국제상학회 2007 國際商學 Vol.22 No.4

  International trade volume of China has been growing with the Chinese economic boom in recent years. In line with these trends, Chinese logistics market is rapidly increasing, which is leading to become a center of global logistics network in Northeast Asia. The volume of trade between Korea and China has also been growing significantly every year. The economic and logistics cooperation between the two countries is expected to provide mutual economic benefits. However there are still huge impediments in logistics network between the two countries including bottleneck in transport and customs procedures.<BR>  The propose of this study is to identify key obstacles and suggest strategies for logistics revitalization between Korea and China, Shandong Province in particular. In order to achieve the objectives of this study, questionnaire survey was undertaken in order to assess the importance of various logistics sectors, obstacles to logistics cooperation etc.<BR>  We suggest the policy implications such as construction of logistics center, revision of laws and systems related customs clearance, development of the sea&air transportation, establishment of integrated logistics systems etc. for the logistics cooperation between Korea and China.