• The Bulletin of The Korean Astronomical Society
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• v.24 no.1
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• pp.35-35
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• 1999

• 대한정형외과스포츠의학회:학술대회논문집
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• 2004.09a
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• pp.35-35
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• 2004

• 한국지구물리탐사학회:학술대회논문집
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• 2011.10a
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• pp.27-28
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• 2011

• Proceedings of the Korean Society for Food Science of Animal Resources Conference
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• 1996.06a
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• pp.35-35
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• 1996

• Journal of Veterinary Clinics
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• v.35 no.5
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• pp.195-199
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• 2018

Zinc is necessary for normal functions in the immune system. The objective of the study is to examine the effect of zinc on the chemotactic activity of porcine peripheral blood polymorphonuclear cells (PMNs). A modified Boyden chamber was used to determine the directional migration distance of PMNs. Various concentrations of zinc showed no chemotactic activity to PMNs. However, culture supernatant from peripheral blood mononuclear cells (PBMCs) treated with zinc remarkably increased the chemotactic activity of PMNs when compared with culture supernatant from PBMCs treated without zinc. Culture supernatant from PBMCs treated without zinc also increased the migration distance of PMNs relative to vehicle control (medium alone). Increasing effect in chemotactic activity of PMNs by culture supernatant from PBMCs treated with zinc was inhibited by treatment of porcine anti-interleukin (IL)-8 polyclonal antibody (pAb). This effect was not affected by heat treatment ($4-85^{\circ}C$). This corresponded with heat stable physical characteristics of IL-8. These results suggest that zinc can upregulate the chemotaxis of PMNs, which is primary mediated by IL-8 chemotactic factor released from PBMCs treated with zinc.

• The Korea Journal of Herbology
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• v.35 no.2
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• pp.7-14
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• 2020

Objectives : Pyeongwi-san is widely used in Korean medicine for acute indigestion or gastrodynia. As a therapeutic agent for digestive diseases of modern people, in order to confirm the mechanism of Pyeongwi-san on digestive tract disease and the difference of therapeutic efficacy between its formulation, a comparative efficacy test was conducted on digestive tract disease animal model. Methods : For LPS enteritis animal model, male SD rats were intraorally treated with different formulation types of Pyeongwi-san, and then intraperitoneally administered LPS one hour later to induce enteritis. After 5 hours, blood was collected and TNFα, IL-1β, IL-6 and PGE2 were confirmed by ELISA. For acute gastritis animal model, male SD rats were intraorally treated with different formulation types of Pyeongwi-san according to the prescribed concentration, and then intraorally administered 60% ethanol and 150 mM HCl one hour later to induce acute gastritis. After 5 hours, blood was collected and TNFα,IL-6 were confirmed by ELISA. Results : In the LPS-administered enteritis animal model, Pyeongwi-san decreased TNFα, IL-1β, PGE2 and especially IL-6. Pyeongwi-san also decreased IL-6 in acute gastritis animal model. In addition, there was no significant difference in efficacy between the two formulations when compared with inflammatory markers. Conclusions : The efficacy of Pyeongwi-san was confirmed in the inflammatory markers related to digestive inflammatory diseases, and the efficay between two formulations of Pyeongwi-san was relatively similar. Further studies are needed to investigate the new applicability of Pyeongwi-san on different inflammatory diseases that have similar inflammation markers identified in this experiment.

• 한국생물공학회:학술대회논문집
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• 2001.11a
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• pp.229-230
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• 2001

We produced human IL-12, which is consisted of p35 and p40 subunits through tobacco cell suspension culture. In batch culture, the maximum hIL -12 production of 180.5 ${\mu}g/L$ was obtained in 5days after inoculation. The effect of gelatin on the production of hIL-12 was also tested.

• Bulletin of Korea Environmental Preservation Association
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• v.18 no.1
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• pp.32-35
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• 1996

• Environmental engineer
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• v.23 s.242
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• pp.28-35
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• 2006

• Nuclear industry
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• v.25 no.12 s.274
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• pp.35-43
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• 2005