Reduction of allergenicity of irradiated ovalbumin in ovalbumin-allergic mice

Seo, Ji-Hyun,Lee, Ju-Woon,Kim, Jae-Hun,Byun, Eui-Baek,Lee, Soo-Young,Kang, Il-Jun,Byun, Myung-Woo Elsevier 2007 Radiation physics and chemistry Vol.76 No.11

<P><B>Abstract</B></P><P>Egg allergy is one of the most serious of the immediate hypersensitivity reactions to foods. Such an allergic disorder is mediated by IgE antibodies stimulated by T-helper type 2 (Th2) lymphocytes. This study was undertaken to evaluate changes of allergenicity and cytokine profiles by exposure of irradiated ovalbumin (OVA), a major allergen of egg white, in the OVA-allergic mice model. OVA solutions (2mg/ml in 0.01M phosphate buffered saline (PBS) were gamma-irradiated to 50 and 100kGy. The allergenicity in the OVA-allergy-induced mice model was remarkably reduced when challenged with irradiated OVA. Cultures of spleen cells harvested from OVA-sensitized mice showed a significant decrease in Th2 cytokine levels of ILs-4 and -5 with a concomitant increase in Th1 cytokine levels of IL-12 when co-cultured with irradiated OVA. However, IFN-<I>γ</I> level decreased dependant on the radiation dose of co-cultured OVA. The levels of IgEs and Th2-cytokine were reduced dependant on the radiation dose. These data show that the irradiated OVA could downregulate the activity of Th2 lymphocytes in OVA-sensitized mice.</P>

갑상선결절의 임상 및 초음차소견의 진단적 가치

박거운,박철진,박일구,신지혜,정중화,배학연,김상용 朝鮮大學校 附設 醫學硏究所 2007 The Medical Journal of Chosun University Vol.32 No.2

Backgrounds: Thyroid nodule have been relatively common disease and it's prevalence estimated about 4-7%. Recently, high resolution ultrasonography has made the detection of small thyroid nodule possible, Increases in the detection of thyroid nodule have created a clinical dilemma on how to properly manage such thyroid nodules. We investigated the prevalence, clinical and ultrasonographic characterristics, and optimal diagnostic approach toward detected benign and malignant thyroid nodules. Methods: A retrosepctive review was undertaken on the 372 patients who was done Ultrasonograpy guided fine needle aspiration biopsy in Chosun University Hospital, Gwang-Ju, Korea between July 2003 and Spring 2005. Devided into four group such as benign and malignant thyroid nodule on the basis of size 1.5Cm. The review consisted of thyroid function test, antithyroid antibodies, thyroid autoantibodies, thyroid ultrasonography, fine needle aspiration biopsy in each group. Results: The prevalence of thyroid nodule malignancy rate was 18.0%. The prevalence of thyroid incidentaloma malignanct rate was 17.5%. There were no significant differences in age, sex, thyroid function test and size between the benign, malignant incidentalomas and nodule. Ultrasonographic characteristics, include ultrasonography index point showed meaningful diagnostic value for the detection of malignancy in thyroid nodule, Conclusion: Thyroid cancers are fairly common finding. There are no clinical difference between benign and malignant thyroid nodule; however, ultrasonographic findings can be used to decision of optimal management strategies 배경: 최근갑상선 초음파의 빈번한 시행으로 갑상선 결절의 발견이 증가하고 있다. 이러한 갑상선 결절중 특히 갑상션우연종을 임상적으로 어떻게 접근하고 치료를해야하는지는 적지 않는 문제가 되고 있다. 본 연구에서는 갑상선 우연종 및 직경 1.5 cm 이상의 갑상션결절의 유병률, 임상적 특징, 초음파특정 및 초음파의 진단적 유용성에 대해 알아 보았다. 방법: 2003년 7윌부터 2005년 3월까지 조선 대학교병원 내과 및 일반외과및 건강검진 센터를 통해 갑상선 초음파, 경동맥 초음파 및 경부 CT등을 통해 우연히 발견된 갑상션결절을 가진 372명을 대상으로 후향적 연구를 시행하였다. 크기 1.5 cm 미만의 양성및 악성 갑상선 결절군과 크기 1.5 cm 이상의 양성 및 악성결절로 그룹을 나누고 각 군에서 나이, 성별, 갑상선 기능검사, 항갑상선 항체, 갑상선 초음파 및 미세침흡인세포검사등을 검토하였고, 모든 갑상선 결절에 Koike (6)가 제한한 초음파지표 점수(Ultrasonographie index point)를 부여하여 각 군을 비교하였다. 결과: 분석한 갑상선 결절 372예 중 악성결절의 유병율은 18.0% (67예)였다. 갑상선 우연 종의 유병율은 81.5% (303예)였다. 갑상선 우연 종에서의 악성률은 17.5% (53예)로 나왔다. 크기 1.5 cm 이상의 양성 및 악성 갑상선 결절과 양성 및 악성 갑상선 우연종에서 나이, 성별, 갑상선 기능검사, 항갑상선항체에는 의미있는 차이가 없었다. 또한 양성 및 악성우연종에서 의 갑상선 결절크기에도 의미있는 차이는 보이지 않았다. 갑상선 결절의 초음파 지표점수만이 양성 및 악성우연종과 양성 및 악성갑상선 결절의 감별에 의미있는 차이를 보였다. 갑상 선우연종과 크기 1.5 cm 이상의 갑상선 결절에 서 양성을 나타내는 초음파지표점수는 각각 3 점과 4점으로 다르게 나타났다. 양성 및 악성 갑상선우연종의 감별에서 초음파 지표점수의 민감도는 93.6%, 특이도는 52.8%, 양성예측율은 92.4%로 나왔고, 진단적 효율은 86.4% 였으며 크기 1.5 cm 이상의 양성 및 악성 갑상선 결정의 감별에서 초음파지수 민감도는 92.7%, 특이도가 42.9%, 양성 예측도 86%, 효율 82.6%를 보였다. 결론: 갑상선결절에서의 양성 및 악성의 유무는 임상적으로 판단하기 힘들지만 갑상선 결절에서의 초음파 소견 및 초음파 지표 점수를 도입하면 이에 대한 감별에 도움을 줄 수 있다. 따라서 갑상선 초음파검사시 초음파지표점수의 사용은 향후 갑상선 결절의 진단 방향을 제시하는 중요한 길잡이가 될 수 있으리라 사료된다.

제 2형 당뇨병 환자에서 대사증후군의 유병률 및 관련요인의 특징

박철진,박거운,박일구,신지혜,김진화,배학연,김상용 朝鮮大學校 附設 醫學硏究所 2007 The Medical Journal of Chosun University Vol.32 No.3

Background: People with insulin resistance has a higher risk of developing cardiovascular disease. This leads to the importance in diagnosing metabolic syndrome. The incidence of metabolic syndrome has increased significantly in korea because of an increased population of obese people and also the incidence of DM. There have been many studies done on the incidence of metabolic syndrome in the general population. Therefore, the authors have designed this study to identify the incidence of metabolic syndrome in patients with type 2 DM and also the associated characteristics in that population. Methods: The study included 169 adults over the age of 20 (84 males and 85 females) admitted to the endocrinology department of Chosun University between Jan, 1st 2005 and May, 31st 2006. Out of the people diagnosed with type 2 DM people were excluded when any of the physical measurements (height, weight, blood pressure, abdominal circumference) and blood measurements (TG, HDL-cholesterol, fasting blood sugar) were insufficient and when the patient was taking any drugs other than anti-hy-pertensive agents and oral anti-diabetic agents. Obesity and the other risk factors were defined by the Asian-Pacific guideline and 2001 ATP III of NCEP, respectively. Result: The each prevalence according to the metabolic syndrome criteria of the type 2 DM patients showed low HDL cholesterolemia with the highest incidence of 57.4% followed by hypertng1yceridemia(52.0%), obesity(40.9%) and hypertension(33.0%). The each incidence of diagnostic criteria in metabolic syndrome according to sex was different, In males, hypertriglyceridemia was the highest with the incidence of 57.7% followed by low HDL-cho1estero1emia(49.5%), obesity(40.9%) and hypertension (30.0%). In women, the incidence were low HDL-cho1estero1emia(64.8%), hyperthg1yceridemia(47.6%), obesity(45.0%) and hypertension(36.0%), in a descending order. The analysis between the diagnosis of metabolic syndrome in type 2 DM patients and the criteria showed that hyperthglyceridemia (correlative value 0.575) had the highest correlation followed by low HDL-cholesterolemia (correlative value 0.446), obesity (correlative value 0.350) and hypertension (correlative value 0.410). All the correlations were statistically significant with a p-value less than 0.01. Conclusions: Type 2 DM is a important factor of metabolic syndrome based on insulin resistance. The control of blood glucose with prevention and early diagnosis of the other factors related to metabolic syndrome in type 2 DM is important for preventing cardiovascular complications.

Case Reports : Spontaneously resolved fetal echogenic Lung: A case of congenital Lobar emphysema

( Il Woon Ji ),( Seung Hwa Hong ),( Yeon Jin Park ),( Eun Hwan Jeong ),( Hak Soon Kim ) 대한산부인과학회 2008 Journal of Womens Medicine Vol.1 No.1

We are reporting a case of congenital lobar emphysema (CLE) that was treated by lobectomy during the neonatal period. The abnormality was initially detected antenatally by ultrasound. We suggest that the differential diagnosis of cystic adenomatoid malformation (CAM) should include CLE in cases with lesions that improve especially when the amniotic fluid volume is normal and considered during prenatal counseling.

단일융모막 쌍태아 임신의 관리

( Il Woon Ji ) 대한산부인과학회 2011 교육강연 Vol.2011 No.-

종설 : 태반 형성

지일운 ( Il Woon Ji ) 대한주산의학회 2006 大韓周産醫學會雜誌 Vol.17 No.4

제왕절개 후 자연분만

지일운 ( Il Woon Ji ) 대한산부인과학회 2008 Obstetrics & Gynecology Science Vol.51 No.3

산전 초음파로 진단된 선천성 가로막 탈장 1례

지일운, 연현경, 최진영, 경규상, 홍승화, 정은환, 김학순 충북대학교 의학연구소 2019 忠北醫大學術誌 Vol.29 No.1

본문 참고

Bioethanol Production from the Hydrolysate of Rape Stem in a Surface- Aerated Fermentor

( Ji Hyeon Yeon ),( Sang Eun Lee ),( Woon Yong Choi ),( Won Seok Choi ),( Il Chul Kim ),( Hyeon Yong Lee ),( Kyung Hwan Jung ) 한국미생물 · 생명공학회 2011 Journal of microbiology and biotechnology Vol.21 No.1

In this study, we investigated the feasibility of producing bioethanol from the hydrolysate of rape stem. Specifically, the most ideal yeast strain was screened, and the microaeration was performed by surface aeration on a liquid medium surface. Among the yeast strains examined, Pichia stipitis CBS 7126 displayed the best performance in bioethanol production during the surface-aerated fermentor culture. Pichia stipitis CBS 7126 produced maximally 9.56 g/l of bioethanol from the initial total reducing sugars (about 28 g/l). The bioethanol yield was 0.397 (by the DNS method). Furthermore, this controlled surface aeration method holds promise for use in the bioethanol production from the xylose-containing lignocellulosic hydrolysate of biomass.

Evaluation for Bile Tolerance and Acid Tolerance of Lactic Acid Bacteria by Gamma Irradiation

Ji-hye Lee,Jae-Hun Kim,Beom-Seok Song,Jong-il Choi,Jae-Kyung Kim,Jong-Heum Park,Hong-Sun Yook,Ju-Woon Lee 한국식품영양과학회 2011 한국식품영양과학회 학술대회발표집 Vol.2011 No.10