어린이에서 수술 중 엎드린 자세와 누운 자세에서의 심박수변이도의 비교

김혜경,김종성,김성덕,김희수,염명걸,백진우 대한마취과학회 2001 Korean Journal of Anesthesiology Vol.41 No.4

Comparison of Heart Rate Variability between the Supine and Prone Plsition during General Anesthesia in Children Hee-Soo Kim, M.D., Jin-Woo Baik, M.D., Chong Sung Kim, M.D., Seong Deok Kim, M.D. Myung0Kul Yum, M.D.^*, and Hae Kyung Kim, M.D.^?? Department of Anesthesiology, College of Medicine, Seoul National University ^*Department of Pediatrics, College of Medicine, Hanyang University ^??Department of Anesthesiology, College of Medicine, Inha University, Incheon, Korea Background: It is well known that the prone position affects hemodynamics. In this study, we investigate whether the prone position will affect the heart rate variability compard with the supine position. Methods: Sixty five pediatric patients were assigned to supine group (n = 36) and prone group (n = 29) according to position during surgery. The patients were indeced with thiopental and vecuronium and maintained with O_2-enflurane-N_2O. ECG data was collected for 15 minutes after saturation at the end tidal concentration of the inhalent agent. From the ECG data, power spectral analysis was performed and approximate entropy was calculated. Results: IN the prone group, low frequency power and ratio of low to high frequency power were lower and approximate entropy was higher than those in the supine group. Mean heart rate and blood pressure were no different between the two groups. Conclusions: IN the prone position, sympathetic autonomic activity and balance of the autonomic nervous system decreased. However the complexity of regulation of heart rate variability was maintained in the prone position. (Korean J Anesthesiol 2001; 41: 455~460)

서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)

김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2

Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results: In 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.

한국인 직무 스트레스 측정도구의 개발 및 표준화

장세진,고상백,강동묵,김성아,강명근,이철갑,정진주,조정진,손미아,채창호,김정원,김정일,김형수,노상철,박재범,우종민,김수영,김정연,하미나,박정선,이경용,김형렬,공정옥,김인아,김정수,박준호,현숙정,손동국 大韓産業醫學會 2005 대한직업환경의학회지 Vol.17 No.4

Background and Purposes: Over the past three decades, numerous studies performed in Korea have reported that job stress is a determinant risk factor for chronic diseases and work disability. Every society has its own culture and occupational climate particular to their organizations, and hence experiences different occupational stress. An occupational stress measurement tool therefore needs to be developed to estimate it objectively. The purpose of this study is to develop and standardize the Korean Occupational Stress Scale (KOSS) which is considered to be unique and specific occupational stressors in Korean employees. Subjects and Methods: Data were obtained from the National Study for Development and Standardization of Occupational Stress (NSDSOS Project: 2002-2004). A total of 12,631 employees from a nationwide sample proportional to the Korean Standard Industrial Classification and the Korean Standard Occupational Classification were administered. The KOSS was developed for 2 years (2002-2004). In the first year, we collected 255 items from the most popular job stress measurement tools such as JCQ, ERI, NIOSH and OSI, and 44 items derived from the a qualitative study (depth interview). Forty-three items of KOSS, in the second year, were retained for use in the final version of the KOSS by using Delphi and factor analysis. Items were scored using conventional 1-2-3-4 Likert scores for the response categories. Results: We developed eight subscales by using factor analysis and validation process: physical environment (3 items), job demand (8 items), insufficient job control (5 items), interpersonal conflict (4 items), job insecurity (6 items), organizational system (7 items), lack of reward (6 items), and occupational climate (4 items). Together they explained 50.0% of total variance. Internal consistency alpha scores were ranged from 0.51 to 0.82. Twenty-four items of the short form of the KOSS (KOSS-SF) were also developed to estimate job stress in the work setting. Because the levels of the subscales of occupational stress were gender dependent, gender-specific standard norms for both the 43-item full version and the 24-item short form using a quartile for the subscales of KOSS were presented. Conclusion: The results of this study suggest that KOSS might be an appropriate measurement scale to estimate occupational stress of Korean employees. Further and more detailed study needs to be conducted to improve the validity of this scale.

Thermoelectric Properties of Cu-doped Bi2−xSbxTe3 Prepared by Encapsulated Melting and Hot Pressing

Woo‑Jin Jung,Il‑Ho Kim 대한금속·재료학회 2018 METALS AND MATERIALS International Vol.24 No.2

P-type Bi2−xSbxTe3:Cum (x = 1.5–1.7 and m = 0.002–0.003) solid solutions were synthesized using encapsulated meltingand were consolidated using hot pressing. The effects of Sb substitution and Cu doping on the charge transport and thermoelectricproperties were examined. The lattice constants decreased with increasing Sb and Cu contents. As the amount ofSb substitution and Cu doping was increased, the electrical conductivity increased, and the Seebeck coefficient decreasedowing to the increase in the carrier concentration. All specimens exhibited degenerate semiconductor characteristics andpositive Hall and Seebeck coefficients, indicating p-type conduction. The increased Sb substitution caused a shift in the onsettemperature of the intrinsic transition and bipolar conduction to higher temperatures. The electronic thermal conductivityincreased with increasing Sb and Cu contents owing to the increase in the carrier concentration, while the lattice thermalconductivity slightly decreased due to alloy scattering. A maximum figure of merit, ZTmax= 1.25, was achieved at 373 Kfor Bi0.4Sb1.6Te3:Cu0.003.

항정신병약물을 처음으로 사용하는 초발 정신증 환자에서 나타나는 체중 및 대사성 지표의 변화 : 후향적 연구

김우진,심주철,공보금,강제욱,문정준,김정은,김민걸,박민경,김성진,김현정,정도운 대한생물치료정신의학회 2011 생물치료정신의학 Vol.17 No.2

Objectives:This study was to identify weight & metabolic changes in first-episode psychotic patients with antipsychotics use and investigate the differences of weight & metabolic changes between first-episode psychotic patients and controls with antipsychotics use. Method:In this retrospective study, twenty eight first-episode psychotic patients and twenty eight controls with schizophrenia, schizoaffective or bipolar disorder defined by DSM-IV criteria were included. Information about demographic and clinical characteristics of the subjects was gathered from the medical records. Also body weight, sBP, dBP, fasting glucose, lipid profile and WBC count were evaluated before and after antipsychotics use. Rogistic regression was conducted to assess factors associated with weight gain. Results:First-episode psychotic patients showed more weight and BMI changes than controls after antipsychotics use, and these changes continue over 12 months. On the other hand, there were no significant factors associated with weight gain. Conclusion:The results of present study suggest that antispychotics is one of the major causes inducing weight gain of psychotic patients and antipsychotics-induced weight gain is more vulnerable to drug-naive first-episode psychotic patients.

홍민어 Sciaenops ocellatus에서의 바이러스성 신경괴사증 viral nervous necrosis

김진도,김석렬,정성주,김영진,정태성,최태진,박성우,오명주 한국어병학회 2001 한국어병학회지 Vol.14 No.2

1999년 10월에서 11월 사이에 남해안 일대의 홍민어 종묘 생산장에서 20~30열령의 치어가 척추만곡 및 이상유영을 하며 대량 폐사하였다. 병어는 특이 외부 증상이 없었고, 높은 누적폐사량이 바이러스 질병으로 의심되어, 조직학적 및 분자생물학적인 검사를 행하여 폐사원인을 확인하였다. 폐사개체의 조직을 H-E 염색하여 관찰한 결과 뇌와 안구의 신경세포에서 공포와 괴사가 관찰되었고, 전자현미경 관찰에서는 안구와 뇌에서 바이러스 입자가 관찰되었다. RT-PCR 결과에서는 ≒426 bp의 DNA 단편을 확인할 수 있었다. 이러한 결과로 홍민어에서 발생한 대량폐사는 바이러스성 신경괴사증(VNN)으로 진단되었다. Mass mortalities occurred among red drum lavae, 20 to 30 days old, culturing at hatcheries on southern costal area. No specific external signs were observed except abnormal swimming and spinal deformity. It was, however, suspected as a viral etiology due to high mass mortalities so that histopathological and molecular biological study was performed to evaluate the agent. Both vacuoles and necrosis were observed on nerve cells of brain and eye by H-E staining, and viral particles were observed on electronmicroscopic examination. On the other hand, DNA fragment, approximately 426 bps, was amplified with RT-PCR. The above results were able to diagnosis the etiological agent of mass moralities in red drum larvae as VNN(viral nervous necrosis)virus.

정상과 갑상선 종양조직에서 사람 IGF-I 유전자의 발현

김성운,장현하,박상미,김덕윤,우정택,양인명,김진우,김영설,김광원,고석환,홍성화,최영길 경희대학교 유전공학연구소 1993 遺傳工學論文集 Vol.5 No.-

Many of the growth-promoting properties of growth hormone(GH) are mediated by insulin-like growth factor-I(IGF-I), a highly conserved circulating 70-amino acid peptide. Recent studies have shown that multiple mechanisms influence IGF-I gene expression, including transcription from two promoters, alternative RNA splicing, and variable polyadenylation. In thyroid tissue, thyroid stimulating hormone(TSH) and IGF-I are the most possible candidates for follicular cell proliferation and hypertrophy. Actually IGF-I had autocrine and paracrine effect for tissue growing. We prepared thyroid tumor tissue mRNAs using single step method for detecting IGF-I levels according to different tissues, i.e., thyroid adenoma or papillary thyroid carcinoma. We used Northern blot analysis for IGF-I mRNA and RNase protection assay (RPA) for IGF-I transcription start sites. For Northern blot, we used whole human IGF-I cDNA as a DNA probe and for RPA, we used IGF-I exon 1 containing noncoding promoter 1 as a riboprobe. We got good RNA bands from Northern blot analysis around 1 kb (IGF-IA) and 7.5 kb (IGF-IB) region. To clarify the amount of both IGF-IA and IB mRNAs, we measured autoradiographied signal of IGF-I mRNAs bands using densitometer. In IGF-IA signals, there's no change among liver and thyroid tissues, but in case of IGF-IB mRNA bands, the signal was markedly increased in thyroid carcinoma tissues than that of normal thyroid tissue (85% vs 14%). In the study of RPA, all thyroid tissues used the same transcription start sites as those of liver's. We concluded that that this different regulation of IGF-I mRNA was originated from tissue specificity. That meant some tissue specific transcription factor/s were related to tissue IGF-I expression.

새로운 Baculoviurs 전이벡터를 이용한 Escherichia coli β-galactosidase 유전자의 발현

우수동,김우진,김혜성,진병래,강석권 한국미생물생명공학회 ( 구 한국산업미생물학회 ) 1996 한국미생물·생명공학회지 Vol.24 No.1

국내에서 분리된 BmNPV를 이용하여 제작된 새로운 전이벡터 pBmKSK1에 외래 유전자로서 E. coli lacZ 유전자를 클로닝하고 재조합 바이러스를 제작하였다. 재조합 바이러스에 대하여 Southern blotting 분석을 실시하여 lacZ 유전자의 존재를 확인하였으며, 재조합 바이러스가 접종된 세포의 SDS-PAGE 및 Western blotting 분석을 통하여 β-galactosidase의 발현을 확인하였다. 재조합 바이러스의 발현효율을 누에 세포주 및 유충에서 비교 조사한 결과, 유충에서 더욱 높은 발현량을 보임을 확인하였다. To investigate the expression efficiency of new transfer vector of Bombyx mori nuclear polyhedrosis virus (BmNPV), Escherichia coli lacZ gene was inserted into new transfer vector pBmKSK1, under the control of polyhedrin promoter and expressed in BmN-4 cells coninfected with transfer vector pBmKSK1-LacZ and vild type BmNPV genome, and analysed by Southern blotting. The expression of β-galactosidase was characterized by SDS-PAGE, Western blotting and β-galactosidase activity assay. The results showed that the level of expression in silkworn larvae was higher than that of BmN-4 cells.

배양된 쥐 인슐린종 세포에서 성장인자들에 대한 인슐린 유전자의 발현

김성운,양인명,김진우,김영설,김광원,최영길 경희대학교 유전공학연구소 1989 遺傳工學論文集 Vol.1 No.-

인슐린 유전자 발현의 실험실적 모델로서 쥐 인슐린종 세포(RINm5F cell;rat insulinorraceil)를 이용하여 몇 개의 성장인자에 대한 반응을 조사하고 인슐린 유전자의 활성에 관여하는 상황을 이해하고자 인슐린 유전자의 mRNA를 조사하였다. RINm5F 세포는 glucose 와 EGF 등의 성장인자에 대해 세포분화 및 성장에 자극을 받으며 인슐린, IGF-Ⅰ IGF-Ⅱ등에는 영향을 받지 않았다. 따라서 RINm5F TPVHSMS 생체내 췌도 베타세포의 기능을 대변하기는 어려웠으나 각종 성장인자의 세포내 활성양상을 간접적으로 알 수 있었다. Insulin secretion of RINm5F cells can be stimulated by some of the growth factors, however, not in the same manner compared to pancreatic islet beta cells. We observed that insulin superfamily (insulin IGF-Ⅰ, IGF-Ⅱ) were not affected to insulin mRNA of RINm5F cells, but EGF (50ng/㎖) increased insulin mRNA levels, and dexamethasone (300ng/㎖) decreased insulin mRNA levels in RIAm5F cells. So some of growth factors regulated insulin gene at transcription level in RINm5F cells line.

조혈모세포이식 환자에서 침습성 진균 감염에 대한 Micafungin의 예방 효과 및 안전성

김시현,이동건,최수미,권재철,박선희,최정현,유진홍,이성은,조병식,김유진,이석,김희제,민창기,조석구,김동욱,이종욱,민우성,박종원 대한감염학회 2010 감염과 화학요법 Vol.42 No.3

Background: Micafungin, a potent inhibitor of 1,3-β-D-glucan synthase, is a novel antifungal agent of the echinocandin class. In vitro study showed that micafungin was effective against Aspergillus species as well as Candida species, but clinical data on the prophylactic efficacy against invasive fungal infections (IFIs) other than candidiasis are still lacking. Materials and Methods: We identified 60 consecutive adult hematopoietic stem cell transplantation (HSCT) recipients who received at least 3 doses of micafungin during neutropenic period. Micafungin was started as an alternative in patients who were intolerant or had adverse events (AEs) to primary prophylactic antifungal agents. We retrospectively reviewed the medical records and analyzed the efficacy and safety of micafungin for prophylaxis against IFIs. Results: The patients either had autologous (n=9) or allogeneic (n=51: 1 syngeneic, 24 sibling, 26 unrelated donor) HSCT. Itraconazole oral solution (n=58) was the most frequently used first line antifungal agent for prophylaxis and was administered for median 11 days. The most frequent cause of switch to micafungin was vomiting (n=42). The duration of neutropenia and micafungin administration was median 13 and 12 days, respectively. A successful outcome was achieved in 45 (75%) patients. Empirical antifungal therapy was initiated in 13 (22%) patients. There were 2 cases (3.3%) of breakthrough fungal infections which comprised a probable invasive pulmonary aspergillosis and a possible invasive fungal sinusitis. There was no case of invasive candidiasis. A total of 53 (88%) patients experienced at least one AE regardless of causality during micafungin administration. The most frequent AEs were hypokalemia, vomiting, diarrhea, and elevated serum aspartate aminotransferase or alanine aminotransferase. Among the aforementioned AEs, only 1 case of diarrhea could be classified as a probable relation with micafungin when causality was assessed. There was no AEs that caused discontinuation of micafungin. Conclusions: Micafungin seems to be a safe and effective agent for prophylaxis of IFIs including aspergillosis as well as candidiasis in HSCT recipients. However, further large, prospective, and randomized comparative studies are warranted for aspergillosis.