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Bisphenol A가 마우스의 장기무게 및 운동능력에 미치는 영향
조경혜,문세보,이정원 서울여자대학교 자연과학연구소 2002 자연과학연구논문집 Vol.14 No.-
Bisphenol A (BPA) is an environmental endocrine disrupting chemical that affects reproduction in wildlife and human beings and has been shown to mimic the actions of estrogens. BPA has been thought to be a harmful compound to human beings as well as wildlife. However, there have been few reports on the effect of BPA on movement capability or weights of several organs of animals. The purpose of the paper is to investigate the effect of BPA on weights of several organs and movement capability. BPA exposure was performed in ICR male mouse at dose levels of 0.015, 1.5 or 30 mg/ml in the drinking water for 8 weeks. To evaluate the effect on movement capability, 30 min swimming was applied to mouse administrated with various doses of BPA. After experimental treatment for 8 weeks, mice were sacrificed, and experiments were performed for serolog ical evaluation and comparison of organ weights. There were no differences in serological parameters such as blood cholesterol, blood glucose. total serum protein and serum LDH activity among all groups. There were no change in weights of body and several organs. except spleen between BPA-treated and nontreated mouse. The movement capabilities were decreased in the mice treated with BPA. Electron micrographs of cross sectioned skeletal muscle fibers showed that administration of BPA caused swelling of sarcoplasmic reticulum. These results suggested that BPA may cause the structural transformation of skeletal muscle fibers and then may induce the decrease of movement capability.
치매방지 작업기구 사용이 항산화효소 활성에 미치는 영향
조경혜,박정은,윤지윤,문세보,박효영,정인옥,이정원 서울여자대학교 자연과학연구소 2001 자연과학연구논문집 Vol.13 No.-
We developed an occupational therapy tool to maintain and improve the cognitive function for the elderly who have senile dementia. 86 elderly people took a mininal mental state examination (MMSE) for the therapy to perform the occupational therapy, and divided into three groups based on avarage ages and MMSE values. The occupational therapy was treated three times per week for 10 weeks. The results showed that there were significant differences in the performing scores before and after the treatment ; the scores for the occupational therapy were increased significantly (p<0.001) and the performing time was shortened from 6-week throughout 10-week regimen. This study was to examine the effect on the activity of antioxidant enzymes by occupational therapy. The activities of antioxidant enzymes such as catalase, Glutathion-6-phosphate dehydrogenase (G6PDH), and superoxide dismutase (SOD) were increased to the normal standard by the occupational therapy for the elderly having dementia. The recovery of activities of antioxidant enzymes was obvious in severe demented elderly compared to those in normal or mild demented elderly. These results suggest that the occupational therapy had an beneficial effect on the protection against the oxidative stress especially for severe demented elderly, and the occupational tool need to be modified so as to improve the protection against the oxidative stress for normal and/or mild demented elderly.
Metastasis-associated protein 1 enhances angiogenesis by stabilization of HIF-1alpha.
Moon, Hyo-Eun,Cheon, Hwanju,Chun, Kwang-Hoon,Lee, Seung Ki,Kim, Yong-Sik,Jung, Bo-Kyung,Park, Jeong Ae,Kim, Se-Hee,Jeong, Joo-Won,Lee, Myung-Shik National Hellenic Research Foundation 2006 ONCOLOGY REPORTS Vol.16 No.4
<P>Metastasis-associated protein 1 (MTA1) is highly upregulated in cancer cells with metastatic potential; however, the molecular mechanism by which MTA1 increases the metastatic potential of cancer cells is unknown. We characterized the functional consequences of MTA1 overexpression in cancer cells with an emphasis on its potential role as a deacetylator of hypoxia-inducible factor-1alpha (HIF-1alpha). MTA1 increased the expression of HIF-1alpha protein, but did not increase the expression of its mRNA. Glutathione S-transferase pull-down and coimmunoprecipitation assays demonstrated direct interaction of MTA1 with HIF-1alpha both in vitro and in vivo. Immunoprecipitation and acetylation assays also showed that MTA1 has deacetylation activity on HIF-1alpha in vivo. Moreover, MTA1 increased the transcriptional activity of HIF-1alpha and enhanced the expression of vascular endothelial growth factor, a target molecule of HIF-1alpha. Conditioned medium collected from MTA1 transfectants also increased angiogenesis in vitro and in vivo, probably through enhanced HIF-1alpha stabilization. These results indicate that MTA1 enhances angiogenesis by stabilization of the HIF-1alpha protein, which is closely related to the increased metastatic potential of cancer cells with high MTA1 expression.</P>
이보인 ( Bo In Lee ),최규용 ( Kyu Yong Choi ),김병욱 ( Byung Wook Kim ),최황 ( Hwang Choi ),조세현 ( Se Hyun Cho ),정우철 ( Woo Chul Chung ),이강문 ( Kang Moon Lee ),박수헌 ( Soo Heon Park ),채현석 ( Hyun Suk Chae ),최명규 ( Myun 대한장연구학회 2003 Intestinal Research Vol.1 No.1
Retrospective studies report that doubling time of early colorectal cancer is 26 months. Recently we experienced a case of early colorectal cancer which increased over twofold in a size in only 13 days. (Intestinal Research 2003;1:64-67)
JEON, SE HUI,KIM, NAM HEE,SHIM, MOON BO,JEON, YOUNG WOOK,AHN, JI HYE,LEE, SOON HO,HWANG, IN GYUN,RHEE, MIN SUK ational Association for Food Protection 2015 Journal of food protection Vol.78 No.4
<P>The present study examined 469 commercially available fermented alcoholic beverages (FABs), including beer (draft, microbrewed, and pasteurized), fruit wine (grape and others), refined rice wine, and yakju (raw and pasteurized). Samples were screened for Escherichia coli and eight foodborne pathogens (Bacillus cereus, Campylobacter jejuni, Clostridium perfringens, Escherichia coli O157:H7, Listeria monocytogenes, Salmonella spp., Staphylococcus aureus, and Yersinia enterocolitica), and the aerobic plate count, lactic acid bacteria, acetic acid bacteria, fungi, and total coliforms were also enumerated. Microbrewed beer contained the highest number of microorganisms (average aerobic plate count, 3.5; lactic acid bacteria, 2.1; acetic acid bacteria, 2.0; and fungi, 3.6 log CFU/ml), followed by draft beer and yakju (P < 0.05), whereas the other FABs contained <25 CFU/25 ml microorganisms. Unexpectedly, neither microbial diversity nor microbial count correlated with the alcohol content (4.7 to 14.1%) or pH (3.4 to 4.2) of the product. Despite the harsh conditions, coliforms (detected in 23.8% of microbrewed beer samples) and B. cereus (detected in all FABs) were present in some products. B. cereus was detected most frequently in microbrewed beer (54.8% of samples) and nonpasteurized yakju (50.0%), followed by pasteurized yakju (28.8%), refined rice wine (25.0%), other fruit wines (12.3%), grape wine (8.6%), draft beer (5.6%), and pasteurized beer (2.2%) (P < 0.05). The finding that spore-forming B. cereus and coliform bacteria can survive the harsh conditions present in alcoholic beverages should be taken into account (alongside traditional quality indicators such as the presence of lactic acid-producing bacteria, acetic acid-producing bacteria, or both) when developing manufacturing systems and methods to prolong the shelf life of high-quality FAB products. New strategic quality management plans for various FABs are needed.</P>
Billoth 2 수술 후 반복적인 부종과 저단백혈증을 일으킨 세균과다증식증후군 1예
이보인 ( Bo In Lee ),최규용 ( Kyu Yong Choi ),김병욱 ( Byung Wook Kim ),최황 ( Hwang Choi ),조세현 ( Se Hyun Cho ),정우철 ( Woo Chul Chung ),이강문 ( Kang Moon Lee ),박수헌 ( Soo Heon Park ),채현석 ( Hyun Suk Chae ),최명규 ( Myun 대한장연구학회 2003 Intestinal Research Vol.1 No.2
저자들은 Billoth II 수술을 받은 75세 남자에서 상부위장관 내시경 및 멸균카테터를 통한 공장흡인액 배양으로 세균과다증식 증후군을 진단하고 항생제 치료로 호전을 보인 증례를 경험하여 보고하는 바이다. 세균과다증식이 있으나 선별검사 대상의 요건에 맞지 않는 증례가 있고 선별검사의 상당수가 국내에서 용이하지 않은 점을 고려할 때 Billoth-II 수술 상태와 같이 소장접근이 용이한 경우에는 임상적으로 의심되면 곧바로 상부위장관내시경을 이용한 세균배양검사를 시행해 볼 수 있다. Recently, we experienced a case of bacterial overgrowth syndrome with recurrent edema, hypoproteinemia and normal serum cobalamine level after Billoth II subtotal gastrectomy, which was diagnosed by jejunal aspirates culture and antibiotics treatment. When predisposition and clinical suspicion were present, jejunal culture might be preferable especially in case of post-Billoth II operation status because jejunal approach is easy, screening tests are negative in certain cases and some screening tests are not available in Korea. (Intestinal Research 2003;2:197-200)