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      • P168 : Split-face comparison study of new hyaluronic acid filler for efficacy and safety of HA-IDF versus Restylane® for correction of nasolabial folds

        ( Jie Hyun Jeon ),( Joo Ha Kim ),( Jung Woo Lee ),( Kui Young Park ),( Seong Jun Seo ),( Hae Jun Song ) 대한피부과학회 2013 대한피부과학회 학술발표대회집 Vol.65 No.2

        Background: After successive trials and failures of various injectable materials such as bovine collagen, polyacryamide, calcium hydroxylapatite, etc., hyaluronic acid (HA) has become the most popular filling material. Many new HA fillers are being produced for the purpose of correcting wrinkles and augmentation of soft tissue. Objectives: This study aimed to test the efficacy, tolerability, and safety of a new HA filler, HA-IDF (Yvoire Classic s touch-up, LG Life Sciences, Inc., Seoul, South Korea) and compare HA-IDF with Restylane (Q-Med, Uppsala, Sweden). Methods: Fifty-eight subjects with visible nasolabial folds (NLFs) were enrolled in a randomized, multi-center, single-blind, active-controlled, matched-pair clinical study. Each subject was injected with HA-IDF in one NLF and Restylane in the other. All participants were assessed for cosmetic change at 2, 10, 18, and 26 weeks. Results: At screening, the average Wrinkle Severity Rating Scale (WSRS) for both right and left NLFs was 3.24±0.43. After 26 weeks, the results were 2.56±0.09 for both groups. There was no significant difference in WSRS scores for wrinkle improvement and in incidence of adverse events for both HA filler treatments. Conclusion: The new HA filler HA-IDF is effective and safe for correcting NLFs.

      • SCOPUSKCI등재

        Valuation of ecosystem services in the organic carbon of the Pinus densiflora forest at Mt. Namsan, Seoul Metropolitan City

        Lee, Eung-Pill,Lee, Soo-In,Jeong, Heon-Mo,Han, Young-Sub,Lee, Seung-Yeon,Park, Jae-Hoon,Jang, Rae-Ha,Hong, Youg-Sik,Jung, Young-Ho,Kim, Eui-Joo,Lee, Sang-Hun,You, Young-Han The Ecological Society of Korea 2019 Journal of Ecology and Environment Vol.43 No.4

        Background: Standing biomass, litter production, rate of litter decomposition, amount of litter on forest floor, and amount of soil organic carbon distribution were investigated from March 2016 to November 2018 in order to evaluate the ecosystem value through organic carbon distribution in the Pinus densiflora forest at Namsan, Seoul Metropolitan City. Results: The amount of organic carbon in the Pinus densiflora forest was 261.09 ton C ha<sup>-1</sup> during the research period, and fixed organic carbon in plant through net photosynthesis was 3.2 ton C ha<sup>-1</sup> year<sup>-1</sup>. The organic carbon in plant was 62.77 ton C ha<sup>-1</sup> (24.04%), in litter on the forest floor was 3.65 ton C ha<sup>-1</sup> (1.40%), and in soil was 194.67 ton C ha<sup>-1</sup> (74.56%). The value of plant, litter on forest floor, and soil organic carbon distribution were each 6,277,000 won ha<sup>-1</sup>, 365, 000 won ha<sup>-1</sup>, and 19,467,000 won ha<sup>-1</sup>. The value per ton of fixed organic carbon in plant through net photosynthesis was 320,000 won ha<sup>-1</sup> year<sup>-1</sup> and the value of ecosystem services stored in carbon in the Namsan forest ecosystem was about 26.1 million won ha<sup>-1</sup> for 3 years. Conclusions: The results of this study suggest that the pine forests of Namsan rapidly decompose leaves due to the high atmospheric temperature and accumulate a large amount of organic carbon in the soil to provide climate control regulatory service function.

      • SCOPUSKCI등재

        연구논문 : 만성 바이러스간질환에서 간섬유화의 다양한 비침습 혈청표지자검사의 비교

        김선민 ( Sun Min Kim ),손주현 ( Joo Hyun Sohn ),김태엽 ( Tae Yeob Kim ),노영욱 ( Young Wook Roh ),은창수 ( Chang Soo Eun ),전용철 ( Yong Cheol Jeon ),한동수 ( Dong Soo Han ),오영하 ( Young Ha Oh ) 대한간학회 2009 Clinical and Molecular Hepatology(대한간학회지) Vol.15 No.4

        목적: 만성 바이러스간질환에서 병의 경과와 예후를 평가하고 치료반응을 예측함에 있어 간섬유화의 진단은 중요하다. 최근 간섬유화 평가에 표준방법이지만 침습적 간생검을 대신하여 여러 가지 비침습적 진단법이 이용되고 있고, 또한 새로운 검사법들이 개발되고 있다. 저자들은 만성 B형 및 C형간염 환자를 대상으로 임상에서 광범위하게 흔히 시행하는 혈액검사와 임상 소견을 이용한 아래와 같은 진단법들만으로 간섬유화를 얼마나 정확하게 평가할 수 있는지 알아보고, 단일 검사로 간섬유화를 평가하는 데 유용하다고 알려져 있는 hyaluronic acid(HA)와 IV형 콜라겐 농도와 비교하여 그 임상적 유용성을 평가하였다. 대상과 방법: 2002년 3월부터 2007년 2월까지 만성 바이러스간 질환으로 간생검을 시행받은 225명의 환자(HBV 180명, HCV 43명, HBV+HCV 2명)를 대상으로 분석하였다. 간생검을 시행하는 날에 말초혈액검사, 혈액응고검사, 혈청생화학검사를 시행하고, 혈중 HA, IV형 콜라겐 농도를 측정하였다. 간섬유화의 정도는 F0(섬유화가 없음), F1(문맥역 섬유화), F2(문맥주변부 섬유화), F3(섬유성 격막) 및 F4(간경변증)의 4단계로 구분하였다. 대상 환자를 F0-1, F2-4 혹은 F0-2, F3-4의 두 집단으로 분류하여 두 집단을 구분하고자 할 때 AAR(AST/ALT ratio), API(age-platelet index), APRI(AST to platelet index), CDS(cirrhosis discriminant score), platelet count, HA, IV형 콜라겐의 예측능을 area under the receiver operating characteristic curve (AUROC)값을 이용하여 비교하였다. 결과: 대상환자의 섬유화의 단계는 F0 집단은 17명, F1 집단은 40명, F2 집단은 61명, F3 집단은 74명, F4 집단은 33명이었다. 의미 있는 간섬유화를 F2 이상으로 판단할 때, 의미 있는 섬유화의 예측에 대한 AUROC 값은 APRI=0.822, CDS=0.776, platelet count=0.773, API=0.756, HA=0.749, IV형 콜라겐=0.718, AAR=0.642 순이었고, F3 이상의 광범위한 섬유화 예측에 대한 AUROC값은 CDS=0.835, platelet count=0.795, API=0.794, HA=0.766, AAR=0.711, IV형 콜라겐=0.697, APRI=0.691 순으로 관찰되었다. 결론: 만성 바이러스간질환에서 간섬유화를 평가하는 데 임상 소견 및 혈액검사를 이용한 방법들이 비침습적 진단법 중 단독 검사로도 유용한 것으로 알려져 있는 혈중 HA와 IV형 콜라겐 농도와 비교하여 우월하거나 대등하였다. 특히 APRI는 다른 인자들에 비해 F2 이상의 의미 있는 섬유화를 예측하는 데 가장 유용하였고, CDS는 F3 이상의 광범위한 섬유화를 예측하는 데 가장 유용하였다. Background/Aims: The aim of this study was to determine the clinical performances of noninvasive serum markers for the prediction of liver fibrosis in chronic viral liver diseases. Methods: We analyzed a total of 225 patients with chronic viral liver diseases (180 with hepatitis B virus, 43 with hepatitis C virus, and 2 with hepatitis B+C virus) who underwent a liver biopsy procedure at the Hanyang University Guri Hospital between March 2002 and February 2007. Serum was also obtained at the time of liver biopsy. Liver fibrosis was staged according to the scoring system proposed by the Korean Study Group for the Pathology of Digestive Diseases. Various noninvasive serum markers were evaluated, including the aspartate aminotransferase (AST)/alanine aminotransferase (ALT) ratio (AAR), age-platelet (AP) index, AST/platelet ratio index (APRI), cirrhosis discriminant score (CDS), platelet count, hyaluronic acid (HA), and type IV collagen. Results: There were 17, 40, 61, 74, and 33 patients at stages F0, F1, F2, F3, and F4, respectively. The overall diagnostic accuracies of each marker, as determined by the area under receiver operating characteristics curves, were APRI=0.822, CDS=0.776, platelet count=0.773, AP index=0.756, HA=0.749, type IV collagen=0.718, and AAR=0.642 for predicting significant fibrosis (≥F2); and CDS=0.835, platelet count=0.795, AP index=0.794, HA=0.766, AAR=0.711, type IV collagen=0.697, and APRI=0.691 for predicting extensive fibrosis (≥F3). Conclusions: Conclusions: All noninvasive serum markers evaluated in this study were useful for predicting significant or extensive liver fibrosis in chronic viral liver diseases. In particular, APRI was most useful for the prediction of significant fibrosis, and CDS was most useful for the prediction of extensive fibrosis. (Korean J Hepatol 2009;15:454-463)

      • KCI등재

        “Did You Enjoy Dining Alone?” An Examination of Solo Diners

        Ha,Joo-Yeon,Park,Jeong-Yeol,Robin M,Back 한국식공간학회 2020 식공간연구 Vol.15 No.3

        As the number of people spending time alone continues to increase, more people are engaging in solo consumption experiences, resulting in dining alone at a restaurant becoming more prevalent. Restaurants have responded in a number of ways to provide accommodations for solo diners’preferences, including the provision of different table layouts such as small tables, bar seating, and communal tables. However, a close examination on the impact of such table arrangements on solo diners’ behavioral intentions is lacking. This study was designed to examine the influence of table layouts, in conjunction with three restaurant quality dimensions (food quality, service quality, and atmospheric quality), on solo diners’ positive emotions and situational loneliness, which ultimately influences behavioral intentions. Structural equation modeling was used to analyze data collected from 286 United States residents who had dined alone at a restaurant within the previous two weeks. Results suggested that food quality and service quality stimulated positive emotions, while food quality decreased situational loneliness. Bar seating increased positive emotions and decreased loneliness. Positive emotions increased both revisit intentions in general and revisit intentions as a solo diner. Loneliness, on the other hand, was shown to decrease revisit intentions as a solo diner.

      • SCOPUSKCI등재

        Organic carbon distribution and budget of dominant woody plant community in the subalpine zone at volcanic Jeju Island, Korea

        Jang, Rae-Ha,Lee, Seung-Yeon,Lee, Eung-Pill,Lee, Soo-In,Kim, Eui-Joo,Lee, Sang-Hun,You, Young-Han The Ecological Society of Korea 2019 Journal of Ecology and Environment Vol.43 No.4

        Background: The Northern Hemisphere forest ecosystem is a major sink for atmospheric carbon dioxide, and the subalpine zone stores large amounts of carbon; however, their magnitude and distribution of stored carbon are still unclear. Results: To clarify the carbon distribution and carbon budget in the subalpine zone at volcanic Jeju Island, Korea, we report the C stock and changes therein owing to vegetation form, litter production, forest floor, and soil, and soil respiration between 2014 and 2016, for three subalpine forest ecosystems, namely, Abies koreana forest, Taxus cuspidata forest, and Juniperus chinensis var. sargentii forest. Organic carbon distribution of vegetation and NPP were bigger in the A. koreana forest than in the other two forests. However, the amount of soil organic carbon distribution was the highest in the J. chinensis var. sargentii forest. Compared to the amount of organic carbon distribution (AOCD) of aboveground vegetation (57.15 t C ha<sup>-1</sup>) on the subalpine-alpine forest in India, AOCD of vegetation in the subalpine forest in Mt. Halla was below 50%, but AOCD of soil in Mt. Halla was higher. We also compared our results of organic carbon budget in subalpine forest at volcanic island with data synthesized from subalpine forests in various countries. Conclusions: The subalpine forest is a carbon reservoir that stores a large amount of organic carbon in the forest soils and is expected to provide a high level of ecosystem services.

      • Suppression of lung inflammation by the methanol extract of <i>Spilanthes acmella</i> Murray is related to differential regulation of NF-κB and Nrf2

        Kim, Kyun Ha,Kim, Eun Jung,Kwun, Min Jung,Lee, Ji Yeon,Bach, Tran The,Eum, Sang Mi,Choi, Jun Yong,Cho, Sayeon,Kim, Sang-Jun,Jeong, Seung-Il,Joo, Myungsoo Elsevier 2018 Journal of Ethnopharmacology Vol.217 No.-

        <P><B>Abstract</B></P> <P><B>Ethnopharmacological relevance</B></P> <P>Although <I>Spilanthes acmella</I> has been used to relieve inflammation, fever, pain, or infection in traditional Asian medicine, experimental evidence supporting these functions is scarce. Here, we examined an anti-inflammatory function and a possible underlying mechanism of <I>S. acmella</I> Murray (SAM).</P> <P><B>Materials and method</B></P> <P>The methanol extract of SAM was fingerprinted by HPLC. C57BL/6 mice were administered with a single intratracheal (i.t.) LPS and 2 h later with a single i.t. SAM. The effect of SAM on lung inflammation was assessed by histology, semi-quantitative RT-PCR, and MPO assay of lung tissue. The effects of SAM on a pro-inflammatory factor NF-κB and an anti-inflammatory factor Nrf2 were analyzed by immunoblotting of nuclear proteins and by semi-quantitative RT-PCR analysis of mRNA of the genes governed by these transcription factors. V5-Nrf2 was precipitated by an anti-V5 antibody and the ubiquitinated V5-Nrf2 was revealed by immunoblotting of HA-tagged ubiquitin.</P> <P><B>Results</B></P> <P>The i.t. SAM robustly diminished a neutrophilic lung inflammation induced by i.t. LPS treatment of mice. In RAW 264.7 cells, SAM suppressed the nuclear localization of NF-κB and the expression of NF-κB-dependent cytokine genes. SAM increased the level of Nrf2 in the nucleus and the expression of Nrf2-dependent genes while suppressing ubiquitination of Nrf2.</P> <P><B>Conclusion</B></P> <P>Our results suggest that SAM can suppress a neutrophilic inflammation in mouse lungs, which is associated with suppressed NF-κB and activated Nrf2. Our results provide experimental evidence supporting the anti-inflammatory function of <I>S. acmella</I>.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

      • KCI등재후보

        Audiologic Results of Ossiculoplasty Using Malleus Footplate Assembly: The Comparison between Autologous Incus and Hydroxyapatite

        Sun O Chang,Sue Jean Mun,Joo Hyun Park,Chang Myeon Song,Kyu-Hee Han,이준호,Seung Ha Oh 대한청각학회 2011 Journal of Audiology & Otology Vol.15 No.3

        Introduction A disruption of the ossicular chain of the middle ear causes conductive hearing loss. Ossicular reconstruction is performed to restore hearings in those patients with congenital ossicular chain anomaly or ossicular chain disruption caused by chronic otitis media or cholesteatoma. A study from Japan with 52 auditory ossicular malformation revealed that 44% of the patients had a fixation of the stapes, 40% had incudostapedial joint defects followed by fixation of the malleus and/or incus and defects in the incudostapedial joint with a fixation of the stapes.1) One of the most common ossicular chain anomalies in Korea was a stapes footplate fixation (54.5%) followed by a mobile stapes footplate with other anomalies (19.7%) including a stapes without suprastructure and an incus long process, stapes without anterior crus and an incus long process.2) One of the most common ossicular chain anomalies is the absence of an incus with or without an intact stapes suprastructure. In incudostapedial deformed ears, ossiculoplasty is mandatory to restore the hearing process. Ossiculoplasty is also needed in cases with incus long process erosion with inflammation. As the most vulnerable ossicles, one report said that incus erosion is found in 80% of the chronic otitis media.3) Austin-Kartush classified ossicular chain disruptions into four categories after 1,151 operation on chronic otitis media. Group A ears with an intact malleus handle and a stapes suprastructure was found in 59.2% followed by group B ears with an intact malleus handle but an eroded stapes suprastructure group.4) In the group of a tympanic membrane and malleus preserved but a stapes suprastructure eroded, ossicular continuity can be restored between the stapes footplate and manubrium of the malleus with the method of malleus footplate assembly (MFA) using either the incus body or if the incus is unavailable, a biocompatible material such as hydroxyapatite (HA).5,6,7) Until now, MFA has proven to be the safe and effective way to restore hearings in such patients.8,9,10,11,12)Though successful results using MFA with either incus body or biocompatible material are reported world widely, there were a few reports on audiologic results after MFA ossiculoplasty in Korea. Authors reviewed our procedure and report hearing results of ossiculoplasty with MFA using either incus or HA. In this paper, a single-surgeon series of 32 MFA operations was analyzed. The cases were limited to autologous interposition grafts performed on Austin-Kartush group B ears in order to provide consistency within the analysis. Subjects and Methods Data collection A retrospective evaluation has been carried out on patients who underwent MFA ossiculoplasty between September 2001 and March 2010 in Seoul National University Hospital. A total of 55 patients with Austin-Kartush type B defect repaired with incus body or HA were identified. Of those, 20 were excluded due to a failure to recover operation records or a lack of no more than 1 year postoperative audiograms. Three patients who had undergone MFA with a homologous incus were excluded in order to provide consistency within the analysis. Finally, 32 cases were enrolled into the study. All procedures were conducted by a single surgeon. All data including previous operations, follow-up duration, age, sex, etiology, materials which were used in the operation, combined mastoidectomy, complications, and revision operations were analyzed. Eustachian tube function was analyzed according to the results of the Eustachian tube test. The status of the middle ear mucosa was described as either 'healthy' or 'inflamed' according to the operation records. Demographic data are presented in Table 1. Analysis of audiologic data Preoperative and postoperative hearing results were evaluated according to the guidelines of the Committee on Hearing and Equilibrium of the American Academy of Otolaryngology-Head Neck Surgery Foundation13) an... Background and Objectives: Absence of incus is one of the most common ossicular anomalies and also frequently found in chronic otitis media or chornic otitis media with cholesteatoma. Ossiculoplasty with malleus footplate assembly (MFA) can be an excellent option in the above situations. We reviewed our procedures and evaluated the hearing results of ossiculoplasty using the MFA. Subjects and Methods: This study retrospectively reviews a series of 32 patients who underwent MFA ossiculoplasty between September 2001 and March 2010 in an academic tertiary referral center. The autologous incus or hydroxyapatite (HA) was used as materials for reconstruction. Results: Thirteen of 32 patients (40.6%) had ossicular chain anomaly, 9 patients (28.1%) had congenital cholesteatoma and 8 patients (25.0%) had chronic otitis media with cholesteatoma and 2 patients (6.3%) had chronic otitis media. The patients with ossicular chain anomaly showed the greatest air-bone gap (ABG) closure. Overall, postoperative ABG was 17.7±11.7 dB at postoperative 6 months and 19.7±14.3 dB at postoperative 1 year, compared with preoperative ABG of 37.9±9.3 dB. There was no statistical difference of ABG at postoperative 12 months, 24 months between MFA using incus (n=17) and HA (n=15)(p=0.300, and p=0.563). There was no meaningful difference of postoperative ABG between the patients with combined mastoidectomy (n=10) and those without mastoidecmoy (n=22)(p=0.555). No extrusions occurred.

      • KCI등재

        ACCase 저해 제초제 cyhalofop-butyl에 대한 경남지방 수집종 피의 저항성

        원종찬,원옥재,하준,임일빈,강광식,변종영,박기웅,이증주,Won, Jong Chan,Won, Ok Jae,Ha, Jun,Im, Il-Bin,Kang, Kwang Sik,Pyon, Jong Yeong,Park, Kee Woong,Lee, Jeung Joo 한국잡초학회한국잔디학회 2018 Weed & Turfgrass Science Vol.7 No.2

        Repeated use of ACCase inhibiting herbicides for a long time has resulted in increases of resistant Echinochloa oryzicola populations in paddy fields in middle west area of Korea. This study aims to investigate current status of herbicide resistant E. oryzicola in Gyeongsangnam-do, in which there is less information about herbicide resistance. For resistance frequency and dose-response study, seeds from 100 individual plants of E. oryzicola in Gyeongsangnam-do were collected and tested with cyhalofop-butyl. Seven percent of plants from Gyeongsangnam-do was resistant at a recommended rate of cyhalofop-butyl. $GR_{50}$ values (herbicide rates required to reduce plant growth 50%) for one representative resistant populations and five susceptible populations were $738g\;a.i.\;ha^{-1}$ and 66-234 (average 147)$g\;a.i.\;ha^{-1}$, respectively, indicating average 5 times difference in resistance. Although lower rate of frequency of herbicide resistance in Gyeongsangnam-do than in Jeollabuk-do, increases of herbicide resistance are expected in this area because of increases of direct seeded rice fields and increases of dependence on a specific herbicide. Therefore, it is necessary to monitor herbicide resistance regularly and conduct integrated herbicide resistance management in this area. 경남지역 제초제 저항성 피의 발생현황과 저항성 정도를 알아보기 위하여 벼 재배 논에서 100개체의 피 종자를 수집하여 ACCase 저해제인 cyhalofop-butyl에 대한 약량반응 실험을 수행한 결과, 수집한 피의 7%가 저항성으로 조사되었다. 선발된 감수성 5개체의 $GR_{50}$값은 평균 $147g\;a.i.\;ha^{-1}$로 나타났고, 함양 지역의 저항성 개체의 $GR_{50}$값은 $738g\;a.i.\;ha^{-1}$ 로 R/S (ratio of resistance to sensitivity)값은 5.01배로 나타났다. 현재 경남지역에서의 저항성 피의 발생 수준은 낮은 것으로 나타났지만, 저항성 피의 확산을 지연시키거나 막기 위해서는 주기적인 저항성 피의 모니터링과 체계적인 저항성 잡초 관리방안을 마련하여 수행할 필요가 있다.

      • CIE1931 색도좌표에서 경계선과 S-형 변환곡선을 이용한 붉은색과 푸른색의 개선을 위한 색상변환 장치의 설계

        하주영,강봉순 東亞大學校附設 情報技術硏究所 2004 情報技術硏究所論文誌 Vol.12 No.1

        In this paper, we propose the color conversion system on the CIE1931 diagram by using boundary lines and S-shaped conversion curve. The proposed system prevents specific colors, such as human skins, from changing by using boundary lines; the boundary lines divide RGB gamut into conversion area and non-conversion area. The colorsin the conversion area get the converted value by S-shaped conversion curve which applies to different conversion rate according to gap between input color position and boundary lines or RGB gamut outlines on the CIE1931 diagram. The S-shaped conversion curve is used to keep away the converted color from getting out of RGB gamut to avoid color saturation. The changeable colors move along the quadratic curve that is similar to the white point line (known as Planckian locus) for using the principleof color temperature. The proposed system converts the scene into more bluish and reddish by moving the colors toward left and right along by the quadratic curve. This proposed system is experimentally demonstrated with Xilinx Virtex FPGA XCV2000E-6BG560 and the TV set.

      • KCI등재

        부신절제가 전기경련 충격에 의한 흰쥐 뇌의 조기유전자 발현에 미치는 영향

        하규섭,강웅구,정희연,주연호,박주배,김용식 大韓神經精神醫學會 1996 신경정신의학 Vol.35 No.4

        부신피질 호르몬이 뇌에서 전기경련 충격(ECS)에 의한 조기유전자(IEG)의 발현에 미치는 영향을 살펴보기 위하여 본 연구를 수행하였다. 양측 부신을 절제한 수컷 Sprague-Dawley 흰쥐에서 부신을절제한 지 3일 후에 ECS로 경련을 유발시켜 대뇌 피질, 해마 및 소뇌에서 c-fos, jun B, TIS 1의 발현 양상을 관찰하고 이를 대조군과 비교하여 다음과 같은 결론을 얻었다. 1) 부신절제 후 대뇌 피질에서 ECS에 의한 c-fos와 jun B 및 TIS 1 mRNA 발현은 대조군에 비하여 억제되었다. 2) 해마와 소뇌에서는 IEG의 종류에 상관없이 부신절제가 ECS에 의한 IEG의 발현에 별 영향을 미치지 않았다. 이상의 결과로부터 부신절제는 ECS에 의한 IEG의 발현에 영향을 미치며, 그 영향은 뇌의 부위에 따라 다름을 확인할 수 있었다. 부신피질 호르몬이 IEG 발현에 영향을 미치는 기전에 대하여 고찰하였다. The adrenocortical hormones have been known to be related with the pathogenesis of mental disorders and individual vulnerability to stress. To evaluate the influences of adrenocortical hormone on the signal transduction system in rat brain, the authors observed the effects of bilateral adrenalectomy on the induction of immediate early genes(IEGs) after electroconvulsive shock(ECS). Male Sprague-Dawley rats(200 - 250g) were treated with ECS(130V, 0.5sec) at day 3 after bilateral adrenalectomy. Rats were sacrificed at 0, 15, 30, 45, and 60 minutes after ECS, and cerebral cortex, hippocampus, and cerebellum were dissected from the brain. The induction of IEGs was assessed with northern hybridization. The band intensities of the autoradiographs measured with densitometer were compared between adrenalectomized group and sham-operated control group. After adrenalectomy, the c-fos, jun B, and TIS 1 induction by ECS was generally attenuated in the cerebral cortex. The induction of IEGs in the hippocampus and in the cerebellum was not influenced by adrenalectomy. These results suggest that adrenalectomy has differential influences on the induction of IEGs by ECS in the rat brain depending on the region of brain.

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