Adiponectin Attenuates the Inflammation in Atopic Dermatitis-Like Reconstructed Human Epidermis

( Hee-seok Seo ),( Ki Hyun Seong ),( Chang-deok Kim ),( Seong Jun Seo ),( Byung Cheol Park ),( Myung Hwa Kim ),( Seung-phil Hong ) 대한피부과학회 2019 Annals of Dermatology Vol.31 No.2

Background: Atopic dermatitis (AD) is a chronic disorder, with a vicious cycle of repetitive inflammation and deterioration of the epidermal barrier function. Adiponectin, an adipokine, has anti-inflammatory effects on various metabolic and inflammatory disorders. Recently, its level was found to be reduced in serum and tissue samples from AD patients. Objective: We aimed to investigate the effects of adiponectin on epidermal inflammation and barrier structures in AD skin. Methods: A three-dimensional in vitro epidermal equivalent model mimicking AD was obtained by adding an inflammatory substance cocktail to normal human epidermal equivalents (HEEs). The expression of epidermal differentiation markers, primary inflammatory mediators, and lipid biosynthetic enzymes was compared between adiponectintreated AD-HEEs, untreated control AD-HEEs, and normal HEEs. Results: Adiponectin co-treatment 1) inhibited the increase in mRNA expression of major inflammatory mediators (carbonic anhydrase II, neuron-specific NEL-like protein 2, thymic stromal lymphopoietin, interleukin-8, tumor necrosis factor-alpha, and human beta-defensin-2) from keratinocytes in AD-inflammatory HEEs, 2) enhanced the expression of lipid biosynthetic enzymes (fatty acid synthase, HMG CoA reductase, and serine-palmitoyl transferase), and 3) promoted the expression of differentiation factors, especially filaggrin. We also found that the expression of adiponectin receptor-1 and -2 decreased in the epidermis of chronic AD lesion. Conclusion: Activation of the adiponectin pathway is expected to enhance epidermal differentiation and barrier function as well as attenuate inflammatory response to AD as a therapeutic approach. (Ann Dermatol 31(2) 186∼195, 2019)

품종별 감꽃 동결건조 분말의 유효성분 분석

김준한 ( Jun Han Kim ),박석희 ( Seok Hee Park ),문혜경 ( Hye Gyeong Mun ),이인선 ( In Seon Lee ),김종국 ( Jong Kuk Kim ) 한국식품저장유통학회 ( 구 한국농산물저장유통학회 ) 2006 한국식품저장유통학회지 Vol.13 No.6

감 품종별(도근조생, 고종시, 갑주백목, 차랑, 월하시, 상주둥시)로 감꽃을 개화기에 채취하여 동결건조 분말화한 감꽃분말에 함유된 유효성분을 분석, 비교하였다. 조지방 함량은 도근조생이 57.26%로 가장 높은 값을 보였으며, 유리당 조성은 fructose가 95~310 mg%, glucose는 75~281 mg%, sucrose가 7~28 mg%의 함유량을 나타내었고, 유기산 중 malic acid가 갑주백목(6월4일)에 225 mg%로 가장 많았고, tartaric acid도 189 mg%로 가장 많았다. 유리아미노산 중 hydroxy-L-proline은 월하시에 25.33 mg%, L-citrulline은 상주둥시(5월28일)가 58.83 mg%, L-threonine은 상주둥시(5월28일)가 11.88 mg%로 가장 많았다. 페놀산으로 caffeic acid는 갑주백목(6윌4일)이 1946 μg/100 g, phydroxybenzoic acid는 상주둥시(5월29일)가 417.8 μg/100 g, protocatechuic acid는 갑주백목(6월1일)이 181.1 μg/l00 g으로 가장 많았다. 따라서 감꽃에도 감이나 감잎에 못지않게 유용한 식품성분들과 기능성 성분들이 다량 함유되어 있어 새로운 식품 및 기능성 신소재로서의 가치가 매우 높다고 할 수 있다. This study was carried out to analyze useful components in freeze-dried persimmon flower powder made from six cultivars. The cultivars were Dogunjosang, Kojongsi, Kabjubaekmok, Chalang, Weolhasi and SangjuDungsi. Powder of persimmon flower was prepared by milling after freeze drying at -70℃. Crude lipid was the highest in Dogunjosang (57.26%). Major free sugars of the persimmon flowers were fructose (95~310 mg%), glucose (75~281 mg%)and sucrose (7~28 mg%). Major organic acids were malic acid (225 mg% in Kabjubaekmok (Jun. 4th)) and tartaric acid (189 mg% in Kabjubaekmok (Jun. 4th)). Predominant free amino acids were hydroxy-L-proline(25.33 mg% in Weolhasi), L-citrulline (58.83 mg% in SangjuDungsi (May 28th)) and L-threonine (11.88 mg% in SangjuDungsi (May 28th)). Major phenolic compounds in the persimmon flowers were caffeic acid (1,946 μg/100g in Kabjubaekmok (Jun. 4th)), p-hydroxybenzoic acid(418 μg/100g in SangjuDungsi (May 29th)) and protocatechuic acid(181 μg/100g in Kabjubaekmok(Jun. 1st)). The results suggest that persimmon flowers be potential materials as useful food ingredients.

정신분열병에 대한 리스페리돈의 효과 및 안정성

이민수,김용구,김영훈,연병길,오병훈,윤도준,윤진상,이철,정희연,강병조,김광수,김동언,김명정,김상훈,김희철,나철,노승호,민경준,박기창,박두병,백기청,백인호,손봉기,손진욱,양병환,양창국,우행원,이정호,이종범,이홍식,임기영,전태연,정영조,정영철,정인과,정인원,지익성,채정호,한상익,한선호,한진희,서광윤 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.1

연구목적 : 본 시험의 목적은 임상시험 시작전에 연구자들을 대상으로 PANSS Workshop을 통하여 PANSS, ESRS에 대한 국내에서의 표준화 작업을 구축하고 새로운 정신병 치료제인 리스페리돈의 효과와 안정성을 재확인하여 리스페리돈 사용에 대한 적정화를 이루는데 있다. 연구방법 : 1996년 4월부터 1996년 9월까지 국내 39개 대학병원 정신과에 입원중인 혹은 증상이 악화되어 입원하는 정신분열병 환자 377명을 대상으로 다시설 개방 연구를 시행하였다. 1주일간의 약물 배설기간을 가진후, 리스페리돈을 8주간 투여하였고, 기준점, 1주, 2주, 4주, 그리고 8주후에 평가되었다. 용량은 제1일에는 리스페리돈 1mg씩 1일 2회, 제2일에는 2mg씩 1일 2회, 제3∼7일에는 3mg씩 1일 2회 투여하였다. 이후 환자의 임상상태에 따라 임의로 증량할 수 있으며, 최대 일일 16mg을 초과하지 않도록 하였다. 추체외로 증상을 조절하기 위한 투약을 허용하였다. 임상증상 및 부작용의 평가는 PANSS(Positive and Negative Syndrome Scale), CGI(Clinical Global Impression) 그리고 ESRS(Extrapyramidal Symptom Rating Scale)을 사용하였다. 연구결과 : 377명중 343명(91%)이 8주간의 연구를 완결하였다. 치료 종결시점인 8주후 PANSS 총점수가 20% 이상 호전된 경우를 약물 반응군으로 정의할때, 약물반응군은 81.3%였다. 리스페리돈에 반응하는 예측인자로는 발병연령, 이전의 입원 횟수, 유병기간이 관련 있었다. 리스페리돈은 1주후부터 PANSS양성, 음성, 및 일반정신병리 점수상에 유의한 호전을 보여 효과가 빨랐다. CGI의 경우도 기준점에 비해 1주후부터 유의한 감소를 나타내었다. ESRS의 경우, 파킨슨 평가점수는 기준점과 비교해 투여 1주, 2주, 4주후 유의하게 증가되었다가 8주후 기준점과 차이가 없었다. Dystonia 평가점수는 1주후만 유의한 증가를 보였으며, dyskinesia 평가점수는 유의한 차이가 없었다. 혈압, 맥박수의 생명징후 및 일반 혈액학 검사, 생화학적 검사, 심전도 검사에서 유의한 변화는 없었다. 결 론 : 이상의 다시설 개방 임상 연구를 통해 리스페리돈은 정신분열병 환자에서 양성증상뿐만 아니라 음성증상 및 전반적인 증상에도 효과적인 것으로 사료된다. 보다 명확한 평가를 위해서는 다른 항정신병약물과의 이중맹검 연구가 필요할 것으로 생각되며, 또한 장기적 치료에 대한 평가도 함께 이루어져야 하겠다. Objective : The purpose of this study was to investigate the efficacy and safety of risperidone in the treatment of Korean schizophrenic patients. Method : This multicenter open study included 377 schizophrenic patients drawn from 39 university hospitals. After a wash-out period of 1 week, the schizophrenic patients were treated with risperidone for 8 weeks and evaluated at 5 points ; at baseline, and 1, 2, 4 and 8 weeks of treatment. The dose was increased from 2mg/day(1mg twice daily) to 6mg/day(3mg twice daily) during the first week and adjusted to a maximum of 16mg/day over the next 7 weeks according to the patient's clinical response. Medication to control extrapyramidal symptoms was permitted. The psychiatric and neurological status of the patients was assessed by PANSS, CGI, and ESRS scales. Results : 343(91%) of 377 patients completed the 8-week trial period. Clinical improvement, as defined by a 20% or more reduction in total PANSS score at end point, was shown by 81.3% of patients. The predictors of response to risperidone were associated older age, shorter duration of illness, fewer previous hospitalization. Risperidone had rapid onset of action ; a significant decrease of the total PANSS and three PANSS factor(positive, negative, general), and CGI was already noticed at the end of first week. For the ESRS, parkinsonism rating scores were significantly increased until week 4 comparing with baseline. Dystonia rating scores were significantly increased until week 1, and dyskinesia rating scores were not significantly changed during the study. Laboratory parameters including vital sign, EKG, hematological, and biochemical values showed no significant changes during the trial. Conclusions : This study suggests that risperidone is generally safe and effective against both the positive and negative symptoms in our group of patients.

침전성인자를 이용한 생물학적 고형물의 침전속도식과 고형물 플럭스 분석

김진우,최영균,이종훈,김희준,정태학 대한상하수도학회 2002 상하수도학회지 Vol.16 No.3

Equations on settling velocity of the activated sludge were developed by including sludge settleability parameters (SSP) and solids flux at a secondary settling tank was analyzed using the empirical equations, and an optimal solids loading rate was evaluated in this study. SVI, SSVI, DSVI and SSVI_3.5 were adopted as the SSP and a best fitting between observed and calculated zone settling velocity was obtained when SSVI_3.5 was used. Measured solids flux at the secondary settling tank was lower than that recommended by the national design criteria. Optimal solids loading rate and subsequent limiting solids flux can be derived if SSVI_3.5 is used instead of other SSP. Limiting solids flux calculated using SVI showed higher value than that calculated using SSVI_3.5 and the limiting solids flux could be better estimated when SSVI_3.5 was used because the calculated zone settling velocity using SSVI_3.5 was closer to the measured value.

균혈증을 동반한 Klebsiella pneumoniae 이하선염 1예

김자영,이상오,최상호,김남중,최승호,우준희,김양수,류지소 대한감염학회 2003 감염과 화학요법 Vol.35 No.3

급성 세균성 이하선염은 주로 노인 환자들에게서 흔히 나타나며, 여러 가지 위험인자가 있을 경우 발생 빈도가 증가한다. 원인균으로는 S. anureus 등의 그람 양성균이 가장 흔하지만 그 외 그람 음성균과 혐기성균에 의한 경우도 증가하고 있다. 급성 세균성 이하선염의 치료로는 기저질환에 대한 치료와 함께 적절한 항균제를 사용하는 것이다. 저자들은 급성 세균성 이하선염에 동반된 Klebsiella pneumoniae 균혈증 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Acute bacterial parotitis is primarily a disease of the aged and clinically ill patients. Dehydration, dry mouth resulting from surgery or medication use, sialotithiasis, malnutrition and systemic illness are prominent predisposing factors. Staphylococcus aureus is the most common pathogen associated with acute bacterial parotitis. However, streptococci, gram-negative bacteria, and anaerobes have also been reported to be associated with the disease. Nevertheless, acute parotitis caused by Klebsiella pneumoniae has never been earlier reported in Korea. We describe a case of acute parotitis which developed in a 73 year-old women with K. pneumoniae bacteremia. In this case, the patient initially received supportive care. Oral amoxicillin/clavulanic acid were initiated because the painful swelling of the left parotid gland, and overlying erythema was aggravated and pus from Stensen's duct was drained. She complained of fever in spite of oral amoxicillin/claulanic acid administration for 4days. Then, the antibiotics were switched to intravenous ampicillin/sulbactam, and the patient recovered fully after 2 weeks of intravenous antibiotics therapy.

Lysophosphatidic acid increases mesangial cell proliferation in models of diabetic nephropathy via Rac1/MAPK/KLF5 signaling

Kim, Donghee,Li, Hui Ying,Lee, Jong Han,Oh, Yoon Sin,Jun, Hee-Sook Nature Publishing Group UK 2019 Experimental and molecular medicine Vol.51 No.2

<▼1><P>Mesangial cell proliferation has been identified as a major factor contributing to glomerulosclerosis, which is a typical symptom of diabetic nephropathy (DN). Lysophosphatidic acid (LPA) levels are increased in the glomerulus of the kidney in diabetic mice. LPA is a critical regulator that induces mesangial cell proliferation; however, its effect and molecular mechanisms remain unknown. The proportion of α-SMA<SUP>+</SUP>/PCNA<SUP>+</SUP> cells was increased in the kidney cortex of <I>db/db</I> mice compared with control mice. Treatment with LPA concomitantly increased the proliferation of mouse mesangial cells (SV40 MES13) and the expression of cyclin D1 and CDK4. On the other hand, the expression of p27<SUP>Kip1</SUP> was decreased. The expression of Krüppel-like factor 5 (KLF5) was upregulated in the kidney cortex of <I>db/db</I> mice and LPA-treated SV40 MES13 cells. RNAi-mediated silencing of KLF5 reversed these effects and inhibited the proliferation of LPA-treated cells. Mitogen-activated protein kinases (MAPKs) were activated, and the expression of early growth response 1 (Egr1) was subsequently increased in LPA-treated SV40 MES13 cells and the kidney cortex of <I>db/db</I> mice. Moreover, LPA significantly increased the activity of the Ras-related C3 botulinum toxin substrate (Rac1) GTPase in SV40 MES13 cells, and the dominant-negative form of Rac1 partially inhibited the phosphorylation of p38 and upregulation of Egr1 and KLF5 induced by LPA. LPA-induced hyperproliferation was attenuated by the inhibition of Rac1 activity. Based on these results, the Rac1/MAPK/KLF5 signaling pathway was one of the mechanisms by which LPA induced mesangial cell proliferation in DN models.</P></▼1><▼2><P><B>Kidney disease: Mechanisms of diabetes-related damage</B></P><P>A potent molecular mediator of diabetic kidney disease induces its pathogenic effects via proteins that could be targeted with future drug therapies. Yoon Sin Oh
from Eulji University in Seongnam-si and Hee-Sook Jun from Gachon University in Incheon, both in South Korea, and colleagues treated certain cells found in the kidney’s glomerulus, the organ’s filtering unit, with a signaling molecule called lysophosphatidic acid (LPA) that is elevated in the blood of diabetic mice. They showed that LPA stimulated cellular proliferation and boosted the expression of proteins involved in regulating the cell cycle and a multipurpose signaling pathway. They then inhibited the activity of these proteins to prevent the kidney cells’ hyperproliferation, both in cell culture and in diabetic mice. The results highlight the potential of blocking mediators of LPA signaling to treat kidney-related complications of diabetes.</P></▼2>

가변전송율 MPEG비디오에서 셀 손실이 화질에 미치는 영향과 그 보상기법에 관한 연구

김장형,최연성,고희준,김대영 濟州大學校 産業技術硏究所 1995 산업기술연구소논문집 Vol.6 No.-

The output from the video codec, such as MPEG or H.261, consist of macroblocks into ATM cells, when depend on whether or not part of an uncompleted macroblock may be carried over to the next cell. These are the loose and close packing. In this paper, two methods are compare and their efficiency is analysis and we analysed priority control mechanism to achieve the cell loss rate the cell loss rate requirement and the delay requirement of each service class in ATM switch with output buffer. The service classes of our concern are the high time priority class and the high loss priority class

디지털 제어기용 적응 신경망 필터의 설계 및 성능평가

김진선,신우철,홍준희 한국공작기계학회 2004 한국공작기계학회 추계학술대회논문집 Vol.2004 No.-

This Papei describes a nonlinear adaptive noise filter using neural network for digital controller system. Back-Propagation Learning Algorithm based MLP (Multi Layer Perceptron)is used an adaptive filters. In this paper. it assume that the noise of primary input in the adaptive noise canceller is not the same characteristic as that of the reference input. Experimental reaults show that the neural network base noise canceller outperforms the linear noise canceller. Especially to make noise cancel close to realtime, Primary input is divided by unit and each divided part is processed for very short time than all the processed data are unified to whole data.

노인에서 한국판 행동통제척도의 표준화 및 타당도 연구

김효진,이준영,정희연,나덕렬,조성진,조맹제,장성만 大韓神經精神醫學會 2007 신경정신의학 Vol.46 No.4

The aims of this study are to demonstrate the reliability and the validity of the Korean version of Behavioral Dyscontrol Scale (BDS-K.) and to present the normative values of BDS-K among the Korean elderly. The BDS-K was administered in a standardized manner to 1,389 healthy volunteers aged over 65 years recruited from the cornmunity. The elderly with serious neurological, medical or psychiatric disorders were excluded using screening tests. BDS-K showed good intemal consistency (Cronbach's alpha=0.812), test-retest reliability (r=0.88) and inter-rater reliability (r=0.99). Age and educational level were found to affect BDS-K score. Based on this result, normative values of BDS-K. were calculated by age and educational level. The validity of the BDS-K were demonstrated in comparison with MMSE-KC (r=0.72). BDS-K is reliable and valid instrument for measuring executive function of the elderly. The normative values suggested by this study can be widely used as reference values to objectively interpret BDS-K scores of the Korean elderly.

추비시기가 양파의 수량 및 저장성에 미치는 영향

김희대,이찬중,정은호,서전규 한국식품저장유통학회 ( 구 한국농산물저장유통학회 ) 2003 한국식품저장유통학회지 Vol.10 No.3

토양분석 결과 시험전에 비해 P_(2)O_(5), K, EC의 함량이 시험 후에 높았고, 식물체 분석결과 늦게까지 추비한 처리에서 C_(a)O의 함량이 높았다. 생육은 처리간 일정한 경향이 없었고 수량은 농가관행의 고형비료 처리가 시험장 및 농가포자에서 ㏊당 53.MT 및 56.6MT인 것에 비해 2월과 3월 액비처리는 58.2MT 및 60.8MT, 3월과 4월 액비처리는 53.6MT 및 59.1MT 였다. 8월 하순까지의 부패율은 농가관행 고형비료 처리가 각각 23.6% 및 41.0%인 것에 비해 2월과 3월에 액비로 추비한 것이 15.8% 및 28.9%로 가장 낮았으며, 3월과 4월에 액비로 추비한 것은 20.7% 및 31.7%였다. This study was carried out to investigate the yield and storability of onions on top-dressing period. Top-dressing period was applied in February, March and March, April with liquid fertilizer and solid fertilizer of farmhouse practice during the onion growing season. The yields of onion in experimental station field and farmhouse field treated with conventional fertilization were 53.2 and 56.6MT, respectively. However, they were 58.2 and 60.8MT with application of liquid fertilizer in February August were lower with application of liquid fertilizer on February and March(15.8%, 28.9%, compared with application of solid fertilizer by farmhouse practice(23.%, 41.0%), and were 20.7% and 31.7% by treatment of liquid fertilizer on March and April. In conclusion, treatment of liquid fertilizer on February and March decreased the rotting rate.