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함세운,남기석,노혜진,홍경득,황래석,방지환,신형식 대한감염학회 2007 감염과 화학요법 Vol.39 No.4
목적 : 3차 의료기관에서 입원치료를 받았던 노숙자를 대상으로 감염성 질환의 유병율을 알아보고자 하였다. 재료 및 방법 : 2002년 1월부터 2004년 8월 사이에 국립의료원에서 입원 치료를 받았던 269명의 노숙자 환자들을 대상으로 의무기록을 조사하였다. 결과 : 연구 기간동안 입원치료를 받은 총 269명의 노숙자 환자 중 남자가 249명(92.9%), 여자가 19명(7.1%)이었다. 감염질환의 유병율은 B형 간염이 228명 중 15명(6.6%), C형 간염 113명 중 8명(7.1%), 결핵은 269명중 19명(7.1%), VDRL 양성인 경우는 234명 중 25명(10.7%), 항사람면역결핍바이러스항체 양성은 130명중 2명(1.5%)이었다. B형 간염표면항원에 대한 항체 형성자는 118명(51.7%), 항체 미형성자는 95명(41.7%)이었다. 결핵으로 진단된 19명 중 객담도말 및 배양검사와 조직검사로 확인된 경우가 14명, 균음성이나 임상적으로 의심되는 경우가 5명이었다. 간질환 및 관련된 합병증으로 입원한 환자 28명 중 B형 및 C형 간염바이러스에 관련된 경우는 5명(17.9%)에불과하였고 결핵은 19명중 13명(68.4%)이 폐결핵 및 림프절종대의 증상으로 입원치료를 받았다. 복합 감염의 경우는 총 9명이었는데 후천면역결핍증후군 환자였던 2명중 1명이 결핵에 이환되어 있으면서 VDRL 양성소견을 보였고 다른 1명이 HIV와 결핵의 동시감염이었다. 결론 : 노숙자 입원환자에서 결핵, C형 간염 및 매독의 유병율이 일반 인구에 비해 높았다. 노숙자환자를 담당하는 의료인력를 보호하고 환자의 감염질환 유무를 파악하기 위해 적절한 선별검사가 필요하며 감염질환의 확산을 방지하기 위한 정부의 적극적인 대책이 필요하다. Background : Despite the expected high prevalence of several infectious diseases among the homeless, a majority of them have not received screening test and early treatment. Materials and Methods : The subjects of this study were 269 homeless patients who had been hospitalized in the National Medical Center (Korea) between January 2002 and August 2004. Their medical histories and records were reviewed to analyze the prevalence and clinical characteristics of hepatitis B and C, syphilis, tuberculosis and HIV infection among them. Results : The entire 269 homeless patients being hospitalized during the period of this study consist of 249 male patients and 19 female patients. For the prevalence of infectious diseases, HBV was seen in 15 of 228 patients (6.6%); HCV in 8 of 113 patients (7.1%); VDRL positive in 25 of 234 patients (10.7 %); HIV antibody positive in 2 of 130 (1.5%); and tuberculosis in 19 of 269 (7.1%). The number of patients who had the antibody to hepatitis B was 118 (51.7%). Of 28 patients hospitalized with the chief complaints of liver diseases and/or their complications, the number of cases infected with hepatitis B and C viruses was only 5 (17.9%). On the other hand, for patients with tuberculosis, 13 of 19 cases (68.4%) were hospitalized with the chief complaints associated with symptoms of pulmonary tuberculosis or enlarged lymph nodes. The number of patients with multiple infectious diseases was 9 in total. Conclusion : As expected, the prevalence of some infectious diseases were higher among the homeless inpatients, than non-homeless population. Proper screening tests in order to determine the presence of any infectious diseases among the patients and protect involved medical staff are necessary. Further, the government should take proactive measures to prevent the spread of infectious diseases in the aspect of public health.
Antiplatelet and Antithrombotic Activities of Korean Red Ginseng
Ji Yeon Yu,Yong-Ri Jin,이정진,정진호,Ji-Yoon Noh,Soon-Hyang You,김기남,Ji-Hyun Im,Ju-Hyun Lee,Ji-Min Seo,Hyeong-Jun Han,임용,Eun-Seok Park,김택중,신경섭,Jae-Joon Wee,Jong-Dae Park,윤여표 대한약학회 2006 Archives of Pharmacal Research Vol.29 No.10
The antiplatelet and antithrombotic activities of Korean Red Ginseng (KRG) were examined on rat carotid artery thrombosis in vivo, and platelet aggregation in vitro and ex vivo. Administration of KRG to rats not only prevented carotid artery thrombosis in vivo in a dose-dependent manner, but also significantly inhibited ADP- and collagen-induced platelet aggregation ex vivo, while failed to prolong coagulation times such as activated partial thromboplastin time (APTT) and prothrombin time (PT), indicating the antithrombotic effect of KRG might be due to its antiplatelet aggregation rather than anticoagulation effect. In line with the above observations, KRG inhibited U46619-, arachidonic acid-, collagen- and thrombin-induced rabbit platelet aggregation in vitro in a concentration-dependent manner, with IC50 values of 620 ± 12, 823 ± 22, 722 ± 21 and 650 ± 14 μg/mL, respectively. Accordingly, KRG also inhibited various agonists- induced platelet serotonin secretions as it suppressed platelet aggregation. These results suggest that KRG has a potent antithrombotic effect in vivo, which may be due to antiplatelet rather than anticoagulation activity, and KRG intake may be beneficial to the individuals with high risks of thrombotic and cardiovascular diseases.
Cerebral Activation Associated with Sexual Arousal in Individuals with High Rates of Sexual Behavior
( Ji Woo Seok ),( Young Ji Eum ),( Eun Ye Kim ),( Jang Un Jung ),( Jihye Noh ),( Jin Hum Sohn ) 한국감성과학회 2014 춘계학술대회 Vol.2014 No.-
There is a lot of evidence in psychological literature that high rates of sexual behavior can be problematic. It is easy to find individuals whose frequent sexual behavior appears to interfere with their personal happiness and social adjustment. With increasing concerns, research has paid attention to the characteristics of individuals with high rates of sexual behavior, yet relatively little is known about behavioral and neural mechanisms underlying frequent sexual behavior, especially with respect to sexual arousal. We here report data from an event-related fMRI study that investigated the neural correlates of sexual arousal processing using erotic pictures in individuals with high rates of sexual behavior (HSB group) and healthy controls. To examine neural characteristics of sexual desire/arousal, 7 subjects with HSB and 6 age-matched healthy control subjects were scanned while they passively viewed alternating short trials of erotic pictures and neutral picture via monitor. The average SAST (Sexual Addiction Screening Test) score of participants selected as the HSB group in this experiment was 12.4 (SD = 1.84), and the average SAST score of the control group was 1.33 (SD = 2.75). Relative to healthy controls, HSB group showed 1) more sexually aroused (t = 7.172, p < 0.0001), 2) greater activation in the left insula (uncorrected, p < 0.001). These findings suggest that hypersexual desire/arousal may be an important characteristic of in individuals with high rates of sexual behavior.
지석영(Seok Young Ji),박원태(Won Tea Park),노용영(Yong-Young Noh),장원석(Won Seok Chang) 한국생산제조학회 2015 한국생산제조학회지 Vol.24 No.1
We present a fine patterning method of conductive lines on polyimide (PI) and glass substrates using silver (Ag) nanoparticles based on laser scanning. Controlled laser irradiation can realize selective sintering of conductive ink without damaging the substrate. Thus, this technique easily creates fine patterns on heat-sensitive substrates such as flexible plastics. The selective laser sintering of Ag nanoparticles was managed by optimizing the conditions for the laser scan velocity (1.0-20 ㎜/s) and power (10-150 mW) in order to achieve a small gap size, high electrical conductivity, and fine roughness. The fabricated electrodes had a minimum channel length of 5 ㎛ and conductivity of 4.2 × 105 S/㎝ (bulk Ag has a conductivity of 6.3 × 105 S/㎝) on the PI substrate. This method was used to successfully fabricate an organic field effect transistor with a poly(3-hexylthiophene) channel.
Antiplatelet and Antithrombotic Activities of Korean Red Ginseng
Yu, Ji-Yeon,Jin, Yong-Ri,Lee, Jung-Jin,Chung, Jin-Ho,Noh, Ji-Yoon,You, Soon-Hyang,Kim, Ki-Nam,Im, Ji-Hyun,Lee, Ju-Hyun,Seo, Ji-Min,Han, Hyeong-Jun,Lim, Yong,Park, Eun-Seok,Kim, Tack-Joong,Shin, Kyeong The Pharmaceutical Society of Korea 2006 Archives of Pharmacal Research Vol.29 No.10
The antiplatelet and antithrombotic activities of Korean Red Ginseng (KRG) were examined on rat carotid artery thrombosis in vivo, and platelet aggregation in vitro and ex vivo. Administration of KRG to rats not only prevented carotid artery thrombosis in vivo in a dose-dependent manner, but also significantly inhibited ADP- and collagen-induced platelet aggregation ex vivo, while failed to prolong coagulation times such as activated partial thromboplastin time (APTT) and prothrombin time (PT), indicating the antithrombotic effect of KRG might be due to its anti platelet aggregation rather than anticoagulation effect. In line with the above observations, KRG inhibited U46619-, arachidonic acid-, collagen- and thrombin-induced rabbit platelet aggregation in vitro in a concentration-dependent manner, with $IC_{50}$ values of $620{\pm}12$, $823{\pm}22$, $722{\pm}21$ and $650{\pm}14\;{\mu}g/mL$, respectively. Accordingly, KRG also inhibited various agonists-induced platelet serotonin secretions as it suppressed platelet aggregation. These results suggest that KRG has a potent antithrombotic effect in vivo, which may be due to antiplatelet rather than anticoagulation activity, and KRG intake may be beneficial to the individuals with high risks of thrombotic and cardiovascular diseases.