정신분열증 환자의 말초임파구에서 Fluorodeoxyuridine에 의해 유도되는 Fragile Sites

박경란,김원식 충남대학교 의과대학 지역사회의학연구소 1996 충남의대잡지 Vol.23 No.2

The expression frequency of FUdR-induced fragile sites was examined in schizo phrenia patients to determine whether this parameter could be used as a marker of genetic susceptibility in at risk individuals. No difference was found in expression frequency between the schizophrenia patients and a group of normal individuals. This indicates that the expression frequency of fluorodeoxyuridine induced fragile sites is not a suitable marker for assessing genetic susecptibility in schizophrenia.

숯을 이용한 건축재료 개발을 위한 기초적 연구

최원기,박혜란,서승직 대한건축학회 2004 대한건축학회논문집 Vol.20 No.3

In recent years, consmners have a growing interest in green building materials. Why do they use green bui1ding materials? The reasons why they use green building materials are those that earn hiP marks for resource management, impact on indoor environmental quality(IEQ) and performance(energy efficiency and water efficiency, etc). The purpose of this paper is to develop the High Functional Multi-Purpose Green Panel(hereafter referred to as Hi-FMPGP) using the charcoal having the characteristics of porous, absorbent and. moisture control effect In this paper, experimental studies have been performed through the four different models according to the charcoal content. As a result, this experiment shows that the model No.3 with lots of charcoal content is better than reference model without the charcoal content to the all performance. Consequently, we verified that the new Hi-FMPGP has the advantage to previously predicted performances, namely, water content ratio, surface evaporation rate, surface temperature, time lag effect and emissivity. Therefore, Hi-FMPGP is quite within the realms of possibility as a green building material. Finally, additional studies should be performed on the basis of these experimental results for complete green building materials.

사람 말초혈액 림프구에서 Bromodeoxyuridine에 의해 유도되는 Fraglie Sites

박경란,김원식 충남대학교 의과대학 지역사회의학연구소 1995 충남의대잡지 Vol.22 No.2

Chromosomal abnormalities including fragile sites induced by 50㎍/ml and 100㎍/ml bromodeoxyuridine (BrdU) was studied in lymphocytes cultures of six healthy individuals. A significant decrease in mitotic indexes in respect to control cultures was observed with both BrdU concentrations used. The cells showing chromosome aberrations and the total number of cytogenic alterations were significantly increased both BrdU treated cultures with respect to control cultures. Damaged cells showing chromosome aberrations and total number of chromosomal aberrations were increased in BrdU, 100㎍/ml treated groups compared to BrdU 50㎍/ml treated groups. The most frequent type of chromosomal aberration is a gap. A site showing a gap or break was defind as fragile if it appeared in 1% of cells analyzed and in at least three of six individuals studied with the same culture treatment. Using these criteria, fragile sites 4q31, 5q31, 6p22, 6q13, 9q21, and 15q24 were induced in different proportions by different concentration of BrdU.

사람 말초혈액 림프구에서 FudR에 의해 유도되는 Fragile Sites

박경란,신웅기,박성국,김원식 충남대학교 의과대학 지역사회의학연구소 1996 충남의대잡지 Vol.23 No.1

Chromosomal abnormalities including fragile sites induced by 10 ㎍/ml and 20 ㎍/ml fluorodeoxyuridine (FudR) were studied in lymphocytes cultures of six healthy individuals. A significant decrease in mitotic indexes in respect to control cultures was observed with two FudR concentrations used. The cells showing chromosome aberrations and the total number of cytogenetic alterations were significantly increased both FudR treated cultures with respect to control cultures. Damaged cells showing chromosome aberrations and total number of chromosomal aberrations were not significantly increased in FudR 20 ㎍/ml treated groups compared to FudR lO㎍/ml treated groups. The most frequent type of chromosomal aberration is a gap. A site showing a gap or break was defind as fragile if it appeated in 1% of cells analyzed and in at least three of six individuals studied with the same culture tre atment. Using these criteria, fragile sites 3p14, 6p25, 3q32, 1Oq22, 12q21 and 13q21 were induced in different proportions by different concentration of FudR.

Methotrexate가 脾臟에 미치는 影響에 관한 硏究

朴景蘭,李永浩,金源式 충남대학교 의과대학 지역사회의학연구소 1991 충남의대잡지 Vol.18 No.1

In order to study the morphological changes of spleen after treatment with methotrexate, ICR mice were used as experimental animal. The experimental mice were divided into control, 50mg/kg and 500mg/kg of methotrexate treated groups. Methotrexate injected intravenously via tail vein once on the 8th day of pregancy. The mice were sacrificed on the 1st, 2nd 3rd and 4th day after treatment, the spleens were removed and fixed in 10% neutral buffered formalin solution for 48hrs. Spleens were cutted 5㎛ thick and stained with H-E, then observed under the light microscope. The results were as follows: 1. The size of spleen were reduced after MTX treatment more on dose day by day. 2. The periarterial lymphatic sheath (PALS) and germinal center were also reduced after MTX treatment. 3. The lymphocytes of white pulp showed nuclear pyknotic changes and many nuclear debris were found after MTX treatment. 4. The brown hemosiderin pigments were increased markedly in the red pulp of MTX treated groups. 5. Marked proliferation of fibrous trabeculae were found in the red pulp of MTX treated mice.

The effects of antibiotics on the reproductive physiology targeting ovaries in the Asian tiger mosquito, Aedes albopictus

Ha Young‐Ran,Jeong Se‐Jin,Jang Chang‐Won,Chang Kyu‐Sik,Kim Hyun‐Woo,Cho Shin‐Hyoung,Lee Hee‐Il 한국곤충학회 2021 Entomological Research Vol.51 No.2

Mosquitoes have adapted to various environmental conditions. Symbionts with mosquitoes impact this adaptation in different environments. In the field, mosquitoes could get exposed to antibiotics during their developmental period, which could reduce or eliminate their symbiotic microbes. However, the side effects of the antibiotics on the ovary and reproductive physiology of the Asian tiger mosquito, Aedes albopictus remains unknown. In this study, we investigated the effects of tetracycline and combinations of rifampicin and tetracycline at environmentally acceptable levels on the reproductive physiology of ovaries in Ae. albopictus. Rifampicin and tetracycline in combination reduced the hatching rate and fertility of Ae. albopictus compared to the untreated control group. These antibiotics induced histopathological damage and reactive oxygen species production in the ovaries. The combination of antibiotics decreased the expression of surface protein of Wolbachia (WSP) in Ae. albopictus. Additionally, the expression of Toll like receptor 2 (TLR2) and Myd88 were triggered by the combinations. The findings demonstrate the detrimental effects of antibiotics, particularly combinations of rifampicin and tetracycline, on the reproductive capacity of Ae. albopictus females.

皮膚自家移植후의 形態學的 變化에 관한 硏究

梁原模,李永浩,申台均,朴景蘭,金源式 충남대학교 의과대학 지역사회의학연구소 1989 충남의대잡지 Vol.16 No.2

The skin of abdominal wall homografted t the back of rats and observed the morphological changes of grafted tissues and mother tissues on the 1 day, 1 week & 2 weeks after operation. For light microscopic observation, the tissues were fixed within 10% neutral buffered formalin solution and stained with routine hematoxylin & eosin and alcian blue-safranin. The results were as follows; 1. The grafted abdominal skin were degenerated markedly on 1 day after operation but some cells near hair follicle remained alive. 2. In the grafted skin, the epidermis was formed newly at the upper part of muscle layer on 1 weeks after operation. 3. The epidermis of grafted skin was thicker than mother skin on 2 weeks after operation, and there were many small cells having long nucleus arranged vertically to the basal lamina. 4. Few mast cells were found in the lower portion of muscle layer on 1 day after graft operation, but the mast cells which contain heparin mainly increased in number gradually from 1 weeks to 2 weeks after operation.

Pulmonary Aspergilloma : 1 수술 치험례 A Case

신원창,손광현,홍성란 인제대학교 1985 仁濟醫學 Vol.6 No.4

심한 객혈을 동반한 우측 상엽부의 mycetoma 병조를 절제한 후 임상 경과 완쾌되었다. 병리조직학적 검사상 Aspergilloma의 균사 및 아포로 구성된 fungus ball이 증명되었다. Pulmonary aspergilloma with massive hemoptysis is an occasionally fatal condition. A 43 year old house wife has had a severe recurrent hemoptysis for about 3 months. She received various medical treatment including anti-tuberculous measures without improvement. Roentgenographic findings were multicystic and soft patchy appearance at the posterior segment of the right upper lobe by A-P and lateral tomogram and also in computed tomogram. Pre-operatively fungus in the sputum culture was identified at the laboratory. Choice of surgical excision of the involved lobe was decided. Specimen showed beautiful fungus ball in the cavity and bronchiectasis of the communicated bronchi. Pathologic examination showed beautiful aspergillus fumigatus involving the lung parenchyma. Post-operatively hemoptysis was disappeared and 6th months follow up showed good recovery, For the reasons of the complex clinical pictures of the patient, authers report the case with a literature reviews.

유러피안 플로랄 디자인에 있어 잎과 줄기 소재의 활용 : Parallel 형태를 중심으로

박원규,김흥란 호남대학교 산업기술연구소 2003 산업기술연구논문집 Vol.11 No.-

"Tinidazole"(Fasigyn)에 依한 Giardia Lamblia의 驅蟲效果

崔源永,李玉蘭,李元求,이규면,朴定圭,李水月 中央醫學社 1973 中央醫學 Vol.25 No.4

"Tinidazole a new antiflagellate drug, was given orally for 3-7 days to 99 children infected with G.lamblia. Stool examination for detection and evaluation of therapeutic on giardiasis were made by formaline-ether concentration techniques. The children were grouped according to doses and the duration of administration of the drug. The results were summarized as follows; 1) Except 1 case out of 99 children, none of the children showed G. lamblia in the stool examination 2 weeks after administration of the drug, regardless of groups. 2) 4 weeks after administration of the drug, group A (10 mg per kg for 7 days) and group B (5 mg per kg for 7 days) children showed 100% of negative conversion, but group C (10 mg per kg for 5 days) children revealed 84.6% of negatives. 3) 6 months later, the negative conversion rates in groups A, B and C were reduced to 54.5%, 57. 1% and 50. 0% respectively. 4) Mild or transient side effects-nausea, abdominal pain, headache or fever and diarrhea were noted in 16 cases (27. 1%) out of 59 cases.