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이형섭,김장렬,윤석철,이상윤 대한방사선 방어학회 1994 방사선방어학회지 Vol.19 No.2
최근, 개인방사선피폭선량평가에 관한 기술기준이 과학기술처에 의해 고시됨에 따라 국내에서도 개인선량계를 이용한 체외피폭선량평가결과의 신뢰성 문제가 크게 대두되고 있다. 한국원자력연구소에서는 이러한 구내의 상황을 인식하고 자체적인 신뢰성 확보를 위해 미국의 Oak Ridge국립연구소의 주관하에 개인피폭선량의 평가에 관한 국제상호비교검증시험(Personnel Dosimetry Intercomparison Study ; PDIS) 을 수행하였다. 비교 검증시험에는 한국원자력연구소에서 사용하고 있는 Teledyne PB-3 열형광선량계가 사용되였으며 선량게산 알고리즘은 Teledyne PB-3 version1.5-1989를 사용하였다. 본 연구에서는 지금까지 실시된 PDIS의 결과를 요약하고 현재 PB-3 시스템의 개인선량평가성능에 대해 고찰하였으며, 선량평가절차에 대한 문제점 도출을 통하여 직업적 방사선피폭선량 평가능력의 향상을 위한 방안을 제시하였다. Recently, the Ministry of Science and Technology issued a Ministerial Ordinance (N0 1992-15) about the technical criteria on personnel radiation dosimetry. In today's climate, it is important to demonstrate and document that the processor's systems and services to others meet national standards of quality. The purpose of this study is to verify the performance of the Teledyne PB-3 personnel dosimetry system that is generally used in Korea Atomic Energy Research Institute (KAERI) by intercomparison with Oak Ridge National Laboratory. The KAERI has been participated in this personnel dosimetry intercomparison study(PDIS) program since 1991 and it could be possible to test and calibrate personnel monitoring system. This report presents a summary and analysis of by about 50 does equivalent measurements reported for PDIS-16 through 18 (1991-1993) with emphasis on neutron does equivalent sensitivity, accuracy and methods to improve personnel dosimetry performance are also discussed.
안태규,최병렬,송기철,이용연,유화승,서상훈,최우진,조정효,이연월,손창규,조종관 대전대학교 한방병원 2001 惠和醫學 Vol.10 No.1
In the literatual study on Holotrichia, the results were obtained as follows ; 1. Holotrichia is larva of Holotrichia diomphalia Bates etc. powder or liquor of Holotrichia is used medically. 2. Appearance of Holotrichia is shape of kidney, yellowish color. 3. The oriental characters of Holotrichia is warm, toxicant, salty. 4. The significant efficancy of Holotrichia is breaking the stagnant blood. 5. Holotrichia can be applied to the diseases related to thrombosis, and recover the demage of liver. 6. Holotrichia avails Liver diseases such as Hepatitis, Liver cirrhosis, Hepatosplenomegaly, Hepatoma etc.
Lee, Youn-Ri,Lee, Chang-Kwon,Park, Hyo-Jun,Kim, Hyo-Jin,Kim, Jung-Hwan,Kim, Jae-Heung,Lee, Keun-Sang,Lee, Yun-Lyul,Min, Kyung-Ok,Kim, Bo-Kyung Korean Physical Therapy Science 2006 대한물리치료과학회지 Vol.13 No.2
Vascular smooth muscle contraction is mediated by activation of extracellular signal-regulated kinase (ERK) 1/2, an isoform of mitogen-activated protein kinase (MAPK). However, the role of stress-activated protein kinase/c-Jun N-terminal kinase (JNK) in vascular smooth muscle contraction has not been defined. We investigated the role of JNK in the contractile response to norepinephrine (NE) in rat aortic smooth muscle. NE evoked contraction in a dose-dependent manner, and this effect was inhibited by the JNK inhibitor SP600125. NE increased the phosphorylation of JNK, which was greater in aortic smooth muscle from hypertensive rats than from normotensive rats. NE-induced JNK phosphorylation was significantly inhibited by SP600125 and the conventional-type PKC (cPKC) inhibitor Go6976, but not by the Rho kinase inhibitor Y27632 or the phosphatidylinositol 3-kinase inhibitor LY294002. Thymeleatoxin, a selective activator of cPKC, increased JNK phosphorylation, which was inhibited by $G{\ddot{o}}6976$. SP600125 attenuated the phosphorylation of caldesmon, an actin-binding protein whose phosphorylation is increased by NE. These results show that JNK contributes to NE-mediated contraction through phosphorylation of caldesmon in rat aortic smooth muscle, and that this effect is regulated by the PKC pathway, especially cPKC.
이석호,이상구,류광현,고광철,이규택,김재준,최규완,이남용,백승운,이종균,이준혁,이종철,심상군,이풍렬,조승렬 대한소화기학회 1999 대한소화기학회지 Vol.34 No.4
Intestinal capillariasis is caused by Capillaria philippinensis. Among them, only 4 species have been found in humans: Capillaria hepatica, C. aerophila (Eucoleus aerophilus), C. plica and C. philippinensis. Reports of human infections with C. hepatica, C. aerophila and C. plica are rare, but reports of C. philippinensis infections are increasing and spreading geographically. Human infestation by C. philippinensis is a rare parasitic disease. We experienced a case of intestinal capillariasis which was misdiagnosed for intestinal tuberculosis or Crohn's disease at first but correctly diagnosed later by detection of numerous eggs of C. philippinensis on the stool examination. The eggs were found in stool only after ingestion of prednisolone for treatment of misdiagnosed Crohn's disease. The 42 year-old patient had a journey to Saipan island in Pacific ocean 6 months ago and ate sliced raw eels. Abdominal pain, watery diarrhea were subsided after therapy of albendazole.
Protective effect of yeoldahanso-tang on radiation-induced oral mucositis in mice
Lee, Jong Hyun,Lim, Sung-Lyul,Lee, Seok-Geun,Ryu, Seung-Hee,Lee, Sang-wook,Kim, Kwanil,Jung, Jinhong,Kong, Moonkyoo,Lee, Jung-woo,Lee, Junhee,Eun, Young-Gyu,Ahn, Kwang Seok Kyung Hee Oriental Medicine Research Center, Kyung 2016 Oriental Pharmacy and Experimental Medicine Vol.16 No.1
Radiation-induced oral mucositis is probably the most common toxicity for head and neck cancer patients. This adverse effect potentially leads to various lesions such as erythema, ulcerations, pain, opportunistic infections, and weight loss. Although there are many experimental studies and clinical trials related to novel therapies for radiation-induced oral mucositis, we here evaluate the protective effect of orally administrated Yeoldahanso-tang (YDHS) on radiation-induced oral mucosal damage in a mouse model. YDHS is a traditional Korean herbal formula, containing 7 herbs: Pueraria thunbergiana Benth., Angelica tenuissima Nakai, Platycodon grandiflorum (Jacq.) A. DC., Raphanus sativus var., Angelica dahurica Benth. et Hooker f., Cimicifuga heracleifolia Kom., and Scutellaria baicalensis Georgi. Oral mucosal damage was induced by irradiation (17 Gy) throughout the head and neck area in male BALB/c mice. YDHS (400 or 800 mg/kg/day for consecutive 12 days) was administered orally, and the protective effect was determined by histological evaluation of the oral mucosa. We found that irradiation highly increased COX-2 expression in salivary glands and its expression was suppressed by YDHS. Histologically, the irradiated mice exhibited the epithelial thickness from the basement membrane to the stratum granulosum significantly decreased as compared to the vehicle group. YDHS-treated mice showed significantly recovered epithelial cell layer thickness compared to irradiated group. Similarly, YDHS-treated group also showed the expression of Ki-67, cell proliferation maker, in the basal layer compared to the irradiated group in both dorsal and ventral surface. From these results, we suggest that YDHS is a promising candidate for preventing or treating radiation-induced oral mucositis during radiation therapy.
이석호,최윤호,손희정,류광현,이규택,김재준,김용일,최규완,최성호,백승운,이종균,고광철,이풍렬,이종철,노재형,이준혁,심상군 대한소화기학회 1999 대한소화기학회지 Vol.34 No.1
Background/Aims: We aimed to clarify clinical factors which suggest the possibility of neoplastic polyps of gallbladder. Methods: Ninety-five resected gallbladders with polyps were included. Size and number of the polyps were obtained by preoperative ultrasonography. Histollogically, the polyps were classified into non-neoplastic (cholesterol and inflammatory or hyperplastic polyp) and neoplastic lesions (adenoma and adenocarcinoma). Clinical features, maximum diameter and number of the polyps were compared between the two groups. Results: Of 95 patients, non-neoplastic polyps were observed in 65.3% and neoplastic polyps were observed in 34.7%. We found cholesterol polyp in 47.4%, inflammatory or hyperplastic polyp in 17.9%, adenoma in 25.2% and adenocarcinoma in 9.5%. Two groups showed no difference in age, sex, body mass index, cholesterol, triglyceride, glucose, ALT, HBsAg carriage and the number of polyps. Among the patients with non-neoplastic polyps, 70.2% was under 60 years, while 72.7% of the patients with neoplastic polyps was over 60 years (p$lt;0.05). The size of polyps was under 10 mm in 88.9% of non-neoplastic polyps, and between 10 and 15 mm in 40% of neoplastic leisions. Moreover, 68.4% of neoplastic polyps exceeds 15 mm in diameter (p$lt;0.05). Conclusions: The size of polyp (≥10 mm) and patient's age (≥60 years) could be indicators for neoplastic polyps.