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Na Gyeong Geum(Na Gyeong Geum),Ju Hyeong Yu(Ju Hyeong Yu),So Jung Park(So Jung Park),Min Yeong Choi(Min Yeong Choi),Jae Won Lee(Jae Won Lee),Gwang Hun Park(Gwang Hun Park),Hae-Yun Kwon(Hae-Yun Kwon),J 한국자원식물학회 2022 한국자원식물학회지 Vol.35 No.6
Under the COVID-19 pandemic, interest in immune enhancement is increasing. Although the immune-enhancing activity of plants of the genus Hibiscus has been reported, there is no study on the immune-enhancing activity of H. syriacus. Thus, in this study, we investigated the immune-enhancing activity of Hibiscus syriacus leaves (HSL) in mouse macrophages, RAW264.7 cells, and immunosuppressed mice. HSL increased the production of immunostimulatory factors such as nitric oxide (NO), inducible nitric oxide synthase (iNOS), interleukin-1β (IL-1β), and tumor necrosis factor-α (TNF-α) and activated the phagocytosis in RAW264.7 cells. The HSL-mediated production of immunostimulatory factors was dependent on toll-like receptor 4 (TLR4), p38, and c-Jun N-terminal kinase (JNK) in RAW264.7 cells. In the immunosuppressed mouse model, HSL increased the spleen index, the levels of the cytokines, and the numbers of lymphocytes, neutrophils, and monocytes. Taken together, HSL may be considered to have immune-enhancing activity and be expected to be used as a potential immune-enhancing agent.
뚜렛 장애 아동에서 Risperidone 치료 전후 [123I]IPT SPECT로 측정한 기저 신경절 도파민 운반체 밀도
유영훈 ( Yu Yeong Hun ),김태훈 ( Kim Tae Hun ),류원기 ( Lyu Won Gi ),박세영 ( Park Se Yeong ),지대윤 ( Ji Dae Yun ),최태현 ( Choe Tae Hyeon ),이경열 ( Lee Gyeong Yeol ),천근아 ( Cheon Geun A ),윤미진 ( Yun Mi Jin ),김재근 ( Kim Ja 대한핵의학회 2004 핵의학 분자영상 Vol.38 No.1
목적: 본 연구는 약물에 노출되지 않은 뚜렛 장애 아동들에게 치료 목적으로 일정기간 일정한 용량의 risperidone을 투여한 후 치료 전과 후의 턱중상 척도의 변화 정도와 [^(123T]IPT SPECT로 측정한 기저 신결절 DAT 밀도에 변화가 있는 지 여부를 알아보고자 하였다. 대상 및 방법: 만 6∼12세 사이의 아동으로 약물 비노출뚜렛 장애 아동 9명과 11명의 정상 대조군을 대상으로 risperidone 치료 전화 후에서 각각 [^(123T]IPT SPECT로 측정한 기저 신경절 DAT 밀도에 변화를 정량적 계측하고 치료전 약물 비노출군과 정상대조군의 지거 신경절 DAT 밀도에 차이를 통계적 분석하였으며, 약물 비노출군아동의 치료전과 치료후의 기저 신경절 DAT 밀도에 차이를 통계분석하였다. 결과: 9명의 약물 비노출뚜렛 장애 아동군과 정상 대조군 사이의 좌, 우측 기저 신경절 DAT 특이결합/qxmrdlruf합 비율의 비교한 결과 좌, 우측 기저 신경절 모두 DAT특이결합/비특이결합 비율이 정상 대조군에 비해서 증가되어 있었다(좌측: z=1.576, p=0.043, 우측: z=1.787, p=0.025). 9명의 뚜렛 장애 아동에서 risperidone 치료전과 후 상태에서 기저 신경절 DAT 특이결합/비특이 결합 비율 비교한 결과, risperidone 전후 사이에 유의한 차이가 관찰되지 않았다 (우측: t=-0.0974, p = 0.362 ; 좌측 : t = -0.513, p = 0.624). 결론: Risperidone 투여가 뚜렛 장애의 증상을 호전시키는 시점에서 기저 신경절 DAT 밀도는 변화시키지 않을 수 있음을 제시한다. PURPOSE: Tourette`s disorder (TD), which is characterized by multiple waxing and waning motor tics and one or more vocal tics, is known to be associated with abnormalities in the dopaminergic system. To testify our hypothesis that risperidone would improve tic symptoms of TD patients through the change of the dopaminergic system, we measured the dopamine transporter (DAT) densities between drug-naive children with TD and normal children, and investigated the DAT density before and after treatment with risperidone in drug-naive children with TD, using iodine-I 23 labelled N-(3-iodopropen-2-yl)2β-carbomethoxy-3beta-(4-chlorophenyl)tropane ([^(123)l]IPT) single photon emission computed tomography (SPECT). MATERIALS and METHODS: [^(123)l]IPT SPECT imaging and Yale Global Tic Severity Scale-Korean version (TGTSS-K) for assessing the tic symptom severity were carried out before and after treatment with risperidone for 8 weeks in nine drug-naive children with TD. Eleven normal children also underwent SPECT imaging 2 hours after an intravenous administration of [^(123)l]IPT. RESULTS: Drug-naive children with TD had a significantly greater increase in the specific/nonspecific DAT binding ratio of both basal ganglia compared with the normal children. However, no significant difference in the specific/nonspecific DAT binding ratio of the basal ganglia before and after treatment with risperidone in children with TD was found, although tic symptoms were significantly improved with risperidone. CONCLUSION: These findings suggest that DAT densities are directly associated with the pathophysiology of TD, however, that the effect of risperidone on tic symptoms in children with TD is not attributed to the change of dopaminergic system.
PncA 유전자의 염기 서열 결정에 의한 결핵균의 Pyrazinamide 내성 진단
황지윤 ( Hwang Ji Yun ),곽경록 ( Gwag Gyeong Log ),박혜경 ( Park Hye Gyeong ),이지석 ( Lee Ji Seog ),박삼석 ( Park Sam Seog ),김윤성 ( Kim Yun Seong ),이정유 ( Lee Jeong Yu ),장철훈 ( Jang Cheol Hun ),이민기 ( Lee Min Gi ),박순규 대한결핵 및 호흡기학회 2001 Tuberculosis and Respiratory Diseases Vol.50 No.1
P056 : Psoriasis concurrent with inflammatory bowel disease
( Gyeong Yul Park ),( Eun Jung Hwang ),( Jin Yong Kim ),( So Young Yoon ),( Seong Joon Koh ),( Dong Hun Lee ),( Jai Il Youn ),( Hyun Sun Yoon ),( So Yun Cho ),( Hyun Sun Park ) 대한피부과학회 2013 대한피부과학회 학술발표대회집 Vol.65 No.2
Background: Previous studies have indicated an association between psoriasis and inflammatory bowel disease (IBD), and its higher morbidity rate in Caucasian populations. However, reports on the concurrence of psoriasis with IBD in the Asian population are scarce. Objectives: To analyze the characteristics and the associated morbidities of psoriasis concurrent with IBD in the Asian population. Methods: We retrospectively examined the medical records of 15 patients diagnosedwith both psoriasis and IBD. Sixty age-, and gender-matched patients diagnosedwith psoriasis only were included as controls. The characteristics of psoriasis, presence of comorbidity, and laboratory parameters were compared. Results: Compared to controls with psoriasis only, cases of psoriasis concurrent with IBD had early onset and longer duration of psoriasis, and a higher Psoriasis Area Severity Index (PASI) score. However, these differenceswere not statistically significant. This case group showed higher erythrocyte sedimentation rate and C-reactive protein levels (both P = 0.000), as well as higher incidence of psoriatic arthritis and autoimmune disease as compared to the control group (P = 0.007 and 0.005, respectively). Conclusion: Asian patients having psoriasis concurrent with IBD exhibited different characteristics inpsoriasis severity, risk of psoriatic arthritis, systemic inflammatory parameters, and presence of autoimmune comorbidityas compared to those having psoriasis only.
A Study on the Wigner Energy Release Characteristics of Irradiated Graphite of KRR-2
Gyeong Hwan Jeong,Sei-Hun Yun,Dong-Gyu Lee,Chong-Hun Jung,Keun Woo Lee 한국방사성폐기물학회 2006 방사성폐기물학회지 Vol.4 No.3
중성자가 조사된 흑연에 내재되어 있는 Wigner 에너지를 배출시키는 방법의 하나인 가열냉각공정의 적용 예로 DSC(미분 주사선 열량계) 측정을 통해 흑연으로부터 Wigner 에너지가 배출되는 열 배출 특성을 연구하였다. 일정온도 상승 방법 에 의한 DSC 운전에서 중성자가 조사된 흑연을 가열냉각(annealing)하는 동안 배출되는 Wigner 에너지의 총량과 처리온도에 따른 배출속도를 측정하였다. 연구로 2호기(KRR-2) thermal column 내에 위치별로 중성자의 조사량에 차이가 나는 흑연 시료를 분말로 만들어 상온에서 까지의 온도 범위에서 DSC를 운전하고 이로부터 Wigner 에너지의 배출 속도를 측정하였다. 가열냉각 동안 중성자가 조사된 흑연에서 배출되는 Wigner 에너지의 배출 특성은 가변적 활성화 에너지 속도 식으로 잘 상관시킬 수 있었다. Characteristics of heat release process, while the Wigner energy was drawn off the graphite during DSC(Differential Scanning Calorimenter) measurement as an example of annealing process which is one of release methods of Wigner energy that is contained in the irradiated graphite, was studied. Linear temperature rise method in DSC operation was selected to estimate the total Wigner energy content and the heat release rate of each graphite samples, which were located in several positions in the thermal column in KRR-2 research reactor. As an annealing process in DSC operation Wigner energy of the irradiated graphite samples were totally released by heat supplying to the graphite from room temperature to , in DSC. Characteristics of Wigner energy release from the graphite sample was well correlated with the various activation energy model of the kinetic equation.