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돼지에서 plasma protein에 의한 세포성면역 증진효과에 관한 연구 2. 혈액내 T 림프구 아군 및 MHC class 세포의 분포율
양창근,김순재,문진산,정석찬,박용호,Yang, Chang-kun,Kim, Soon-jae,Moon, Jin-san,Jung, Suk-chan,Park, Yong-ho 대한수의학회 1994 大韓獸醫學會誌 Vol.34 No.2
Plasma protein which has been known as one of nonspecific immunostimulators was added to feedstuff to examine its effect on the enhancement of cellular immune response in porcine immune system. A total of 40 piglets, 20 male and 20 female each, were fed for 30 days with or without plasma protein. The peripheral blood were collected and analyzed for the investigation of leukocyte subpopulations and their activities by using a panel of monoclonal antibodies specific to porcine leukocyte differentiation antigens and flow cytometry. The results obtained as follows. 1. Subpopulations expressing major histocompatibility complex(MHC) class I antigen were $96.2{\pm}3.1%$ and $86.6{\pm}3.8%$ in piglets fed with plasma protein and in piglets fed without plasma protein, respectively. 2. Proportion of leukocyte subpopulation expressing MHC class II antigens were significantly higher in the piglets fed with plasma protein than ones without plasma protein. The proportion was $27.6{\pm}3.6%$ and $16.6{\pm}2.2%$ in MHC class II DQ antigen, and $28.1{\pm}2.0%$ and $20.0{\pm}0.3%$ in MHC class II DR antigen, respectively. 3. A significant increase in the proportion of cells expressing poCD2 was not found in piglets fed plasma protein. 4. Proportion of subpopulation expressed porcine(Po) CD4 antigens which specific to helper T lymphocytes were not increased (18.3-19.1% vs. 25.6-28.8%), rather slightly decreased, in plasma protein-treated group. 5. The most important increase of proportion in plasma protein-treated group was the leukocyte subpopulation specific to $poCD8^+$ T cytotoxic/suppressor lymphocytes. The expression level was significantly higher up to 45.9-47.1% in plasma protein-treated group in comparing with 29.7-33.0% in non-plasma protein-treated group. 6. Lymphoblastogenetic responses using different concentrations of Con A mitogen and plasma protein has found that the responses of lymphocyte from piglets fed plasma protein was significantly activated (p<0.01). The activities measured by 3[H]-thymidine incorporation showed 3-6 times stronger in plasma protein-treated group than those in non-plasma protein-treated group. The study has concluded that plasma protein, which has known as a nonspecific immunostimulator, may have an immunoenhancing activities in porcine lymphoid system by increase the activated cell proportions and their blastogenetic properties which is critical to host immune responses.
돼지에서 plasma protein에 의한 세포성면역 증진효과에 관한 연구 1. 혈액내 백혈구 아군 및 세포별 분포율
양창근,김순재,문진산,정석찬,박용호,Yang, Chang-kun,Kim, Soon-jae,Moon, Jin-san,Jung, Suk-chan,Park, Yong-ho 대한수의학회 1994 大韓獸醫學會誌 Vol.34 No.2
Plasma protein which has been known as one of nonspecific immunostimulators was added to feedstuff to examine its effect on the enhancement of cellular immune response in porcine immune system. A total of 40 piglets, 20 male and 20 female each, were fed for 30 days with or without plasma protein. The peripheral blood were collected and analyzed for the investigation of leukocyte subpopulations and their activities by using a panel of monoclonal antibodies specific to porcine leukocyte differentiation antigens and flow cytometry. The results obtained as follows. 1. Total weight gain, daily feed intake and feed conversion rate for 10 days were significantly improved to 56%, 20% and 22% in the piglets fed plasma protein, respectively. 2. A significant increase in N (null or non T/non B) cells was also noticed. Leukocyte proportion from piglets fed plasma protein was 20.2-24.7%, otherwise that from piglets fed without plasma protein was 12.3-13.4%, respectively. 3. A significant increase in the proportion of B cells and cells expressing poCD1 was not found in piglets fed plasma protein. 4. Reaction with monoclonal antibodies specific to adhesion molecules, poCD11a, poCD11b, poCD44 and poCD45A and poCD45B, has shown that leukocyte subpopulation from piglets fed plasma protein did not significantly higher than that from piglets fed without plasma protein. 5. Total proportion of granulocytes and monocytes was about 50% in both group and the proportion after treated with Hypaque/Ficoll was 2.7% and 5.8% in each group, respectively.
설탕에 대한 Glycemic Index(GI) 저감효과가 있는 D-Xylose의 적정 농도에 관한 연구
문성현,이경선,경명옥,정상원,박윤제,양창근,Moon, Sunghyun,Lee, Kyungsun,Kyung, Myungok,Jung, Sangwon,Park, Yunje,Yang, Chang-Kun 한국식품영양학회 2012 韓國食品營養學會誌 Vol.25 No.4
본 연구의 목적은 설탕의 Glycemic index(GI) 저감효과를 기대할 수 있는 D-xylose의 적정 농도를 조사하는 것이다. 그 결과, 5% D-xylose 첨가 설탕의 GI는 일반설탕의 GI 수치인 68에 비해 약 27.5% 낮은 49.3이었으며, 10% D-xylose 첨가 설탕의 GI는 약 25.9% 낮은 50.4로 확인되었다. D-xylose 첨가 설탕의 GI는 D-xylose의 농도 증가에 따라 의존적으로 감소하지는 않는 것으로 확인되었으며, 5% D-xylose 첨가 설탕(XyloSugar)의 GI 저감효과가 10% D-xylose 첨가 설탕(XyloSugar10)의 GI 저감효과와 차이가 없음을 확인하였다. D-xylose는 설탕에 비해 고가일 뿐만 아니라 감미도도 설탕보다 낮다. 그러므로 D-xylose의 농도가 낮을수록 가격, 맛에 있어서 장점이 있다. 따라서 설탕의 GI 저감효과를 기대할 수 있는 D-xylose의 적정 농도는 5%(w/w)로 판단된다. The objective of this study was to investigate the proper concentration of D-xylose which is expected to reduce the GI (Glycemic index) value of sucrose in the human body. When subjects took a sucrose mixture containing 5% and 10% D-xylose, the blood glucose levels were lowered by approximately 27.5% and 25.9%, respectively, compared to those of sucrose. The GI values of sucrose mixtures containing 5% and 10% D-xylose were 49.3 and 50.4, respectively. The reduction in GI value was not dependent on the D-xylose concentration, as the GI value of sucrose mixture containing 5% D-xylose (XyloSugar) was similar to that of sucrose mixture containing 10% D-xylose (XyloSugar10). D-xylose is not only more expensive but also less sweet than sucrose. So, low concentration of D-xylose has the advantage in the price and taste. It was determined that the proper concentration of D-xylose expected to reduce GI value of sucrose was 5% (w/w).