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김종빈,안정신,임우성,문병인,Kim, Jong Bin,An, Jeong Shin,Lim, Woosung,Moon, Byung-In 제주대학교 의과학연구소 2018 The Journal of Medicine and Life Science Vol.15 No.2
Cancer, a leading mortality disease following cardiovascular disease worldwide, has high incidence as one out of every four adults in Korea. It was known to be caused by several reasons including somatic mutation, activation of oncogene and chromosome aneuploidy. Cancer cells show a faster growth rate and have metastatic and heterogeneous cell populations compared to normal cells. Cancer stem cells, the most invested field in cancer biology, is a theory to explain heterogeneous cell populations of cancer cells among several characteristics of cancer cells, which is providing the theoretical background for incidence of cancer and treatment failure by drug resistance. Cancer stem cells initially explain heterogeneous cell populations of cancer cells based on the same markers of normal stem cells in cancer, in which only cancer stem cells showed heterogeneity of cancer cells and tumor initiating ability of leukemia. Based on these results, cancer stem cells were reported in various solid cancers such as breast cancer, liver cancer, and lung cancer. Breast cancer stem cells were first reported in solid cancer which had tumor initiating ability and further identified as anti-cancer drug resistance. There were several identification methods in breast cancer stem cells such as specific surface markers and culture methods. The discovery of cancer stem cells not only explains heterogeneity of cancer cells, but it also provides theoretical background for targeting cancer stem cells to complete elimination of cancer cells. Many institutes have been developing new anticancer drugs targeting cancer stem cells, but there have not been noticeable results yet. Many researchers also reported a necessity for improvement of current concepts and methods of research on cancer stem cells. Herein, we discuss the limitations and the perspectives of breast cancer stem cells based on the current concept and history.
Diets of Bigeye and Yellowfin Tunas in the Western Tropical Pacific
김종빈,문대연,권정노,김태익,조현수,KIM Jong-Bin,MOON Dae-Yeon,KWON Jung-No,KIM Tae-Ik,JO Hyun-Su The Korean Society of Fisheries and Aquatic Scienc 1997 한국수산과학회지 Vol.30 No.5
Stomach contents of bigeye tuna, Thunnus obesus, and yellowfin tuna, Thunnus albacares, caught by longlining in the western tropical Pacific were analyzed to examine their foods and to compare their feeding behavior. The food species of both bigeye and yellowfin tunas were primarily fishes, crustaceans, and cephalopods. A total of 15 fish, 6 crustacean, and 1 cephalopod species were identified from their stomach contents, of which lantern fish (Myctophum sp.) was the most important food for both tuna species. No significant differences in species composition of food items between bigeye and yellowfin tunas were observed, indicating that in the same habitat the tunas have a similar feeding behavior. However, while they showed a remarkable similarity in diet composition, significant quantitative differences on the basis of IRI values were observed in several diet species, such as Myctophidae, Alepisauridae, Oplophoridae, Gammaridae, and Onychoteuthidae. 눈다랑어와 황다랑어의 먹이의 종류와 섭이 습성을 비교하기 위하여 서부 열대 태평양에서 연승어업으로 어획된 이들 다랑어의 위내용물을 조사하였다. 눈다랑어와 황다랑어의 먹이는 주로 어류, 두족류, 갑각류이었다. 이들 두 종의 다랑어에서 동정된 먹이생물의 총 종수는 어류가 15종, 갑각류 6종 그리고 두족류가 1종이었으며 그 중 가장 중요한 먹이는 샛비늘치류인 Myctophum sp였다. 황다랑어와 눈다랑어의 먹이를 분석해본 결과 먹이의 종류에 있어서는 두 종간에 큰 차이가 없었으며 이것으로 보아 같은 해역에 서식하는 다랑어류는 먹이 습성이 유사함을 알 수 있었다. 그러나, 먹이 가운데 몇몇 종 (Myctophidae, Alepisauridae, Oplophoridae, Gammaridae, and Onychoteuthidae)의 경우 그 중요도에 있어서 두 다랑어간에 현저한 차이를 보였다.
플라즈마 보조 분자선 적층 성장법으로 성장한 ZnO 박막의 청색 발광 중심
김종빈,노영수,변동진,박동희,최원국,Kim, Jong-Bin,No, Young-Soo,Byun, Dong-Jin,Park, Dong-Hee,Choi, Won-Kook 한국재료학회 2009 한국재료학회지 Vol.19 No.5
ZnO thin film was grown on a sapphire single crystal substrate by plasma assisted molecular beam epitaxy. In addition to near band edge (NBE) emissions, both blue and green luminescences are also observed together. The PL intensity of the blue luminescence (BL) range from 2.7 to 2.9 eV increased as the amount of activated oxygen increased, but green luminescence (GL) was weakly observed at about 2.4 eV without much change in intensity. This result is quite unlike previous studies in which BL and GL were regarded as the transition between shallow donor levels such as oxygen vacancy and interstitial zinc. Based on the transition level and formation energy of the ZnO intrinsic defects predicted through the first principle calculation, which employs density functional approximation (DFA) revised by local density approximation (LDA) and the LDA+U approach, the green and blue luminescence are nearly coincident with the transition from the conduction band to zinc vacancies of $V^{2-}_{Zn}$ and $V^-_{Zn}$, respectively.
심한 협착이 동반된 크론병 환자에서 인플리시맵 치료 후 발생한 소장 천공
임창섭 ( Chang Sup Lim ),문원 ( Won Moon ),박선자 ( Seun Ja Park ),박무인 ( Moo In Park ),김형훈 ( Hyung Hun Kim1 ),김종빈 ( Jong Bin Kim ),최정문 ( Jeong Moon Choi ),장희경 ( Hee Kyung Chang ),이승현 ( Seung Hyun Lee ) 대한소화기학회 2013 대한소화기학회지 Vol.62 No.3
Crohn`s disease is characterized by chronic transmural inflammation of the bowel and is associated with serious complications, such as bowel strictures, abscesses, fistula formation, and perforation. As neither medical nor surgical therapy provides a cure for Crohn`s disease, the primary goals of therapy are to induce and maintain remission and prevent complications. As a biologic agent, infliximab, a monoclonal antibody to tumor necrosis factor, is indicated for refractory luminal and fistulizing Crohn`s disease that does not respond to other medical therapies or surgery. Infliximab has proven to be very effective for inducing and maintaining remission in Crohn`s disease; however, infliximab treatment has several potential complications. Here, we report a case of free perforation following a therapeutic response after an initial dose of infliximab for Crohn`s disease. This is the first case report describing a free perforation in a Crohn`s disease patient after an initial dose of infliximab. (Korean J Gastroenterol 2013;62:169-173
김종빈(Jong bin Kim),이재영(Jai-Young Lee) 한국지반신소재학회 2014 한국토목섬유학회 학술발표회 Vol.2014 No.4
The contaminated water of abandoned mine flows to river going through ground water. It has much quantity of heavy metals that discharges without water treatment plants. It is going to flow into the river and water quality is getting worse. Furthermore, that flows to river while contaminate soil. So, it causes problems for the environment and society. However, it is difficult for water treatment plants to emplace each position because it has many problems on the ground of economic, security of site and so on. In order to find a solution these problems, we chose PRB(Permeable Reactive Barriers). The goal of this study is eco-friendly technical development reusing waste resources. In this research, three reacting media were used. The first reacting medium is ZVI(Zero-Valent Iron). It is known as great heavy metal remover. The second reaction medium is steel-making slag. It is suitable medium to remove heavy metals, because its components are lime and iron oxide. Finally, reacting medium is bark. The bark is an epidermis of tree that is dead tissue of tree trunks and branches in the outermost. Its chemical structure is carboxyl and hydroxyl that are well combined with heavy metals. After pilot of PRB, be experimented with artificial contaminated water. The arsenic, cadmium, and lead were put into the artificial contaminated water