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        검색결과 5

        1.
        2023.11 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Velvet antler is widely used as a traditional medicine, and numerous studies have demonstrated its tremendous nutritional and medicinal values including immunity-enhancing effects. This study aimed to investigate different deer velvet extracts (Sample 1: raw extract, Sample 2: dried extract, and Sample 3: freeze-dried extract) for proximate composition, uronic acid, sulfated glycosaminoglycan, sialic acid, collagen levels, and chemical components using ultra-performance liquid chromatography-quadrupole-time-of-light mass spectrometry. In addition, we evaluated the cytotoxic effect of the deer velvet extracts on BV2 microglia, HT22 hippocampal cells, HaCaT keratinocytes, and RAW264.7 macrophages using the cell viability MTT assay. Furthermore, we evaluated acute toxicity of the deer velvet extracts at different doses (0, 500, 1000, and 2000 mg/kg) administered orally to both male and female ICR mice for 14 d (five mice per group). After treatment, we evaluated general toxicity, survival rate, body weight changes, mortality, clinical signs, and necropsy findings in the experimental mice based on OECD guidelines. The results suggested that in vitro treatment with the evaluated extracts had no cytotoxic effect in HaCaT keratinocytes cells, whereas Sample-2 had a cytotoxic effect at 500 and 1000 μg/mL on HT22 hippocampal cells and RAW264.7 macrophages. Sample 3 was also cytotoxic at concentrations of 500 and 1000 μg/mL to RAW264.7 and BV2 microglial cells. However, the mice treated in vivo with the velvet extracts at doses of 500–2000 mg/kg BW showed no clinical signs, mortality, or necropsy findings, indicating that the LD50 is higher than this dosage. These findings indicate that there were no toxicological abnormalities connected with the deer velvet extract treatment in mice. However, further human and animal studies are needed before sufficient safety information is available to justify its use in humans.
        4,300원
        2.
        2017.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        주남 습지대(6.02 km 2 ) 곤충상의 다양도, 우점도, 풍부도 등을 습지대 내 3곳의 습지에서 조사하였다. 조사방법으로는 육안조사와 쓸어잡기 는 2010년, 말레이즈 트랩 조사는 2011년, 유아등 조사와 함정트랩 조사는 2012년에 실시하였다. 총 14目 141科 574種의 9,269 개체 (딱정벌레목 36.3%, 나비목 21.3%, 잠자리목 13.9%)가 조사되었다. 種數로 비교해 보면, 나비목이 31.2%로 가장 높았고, 그 다음이 딱정벌레목(28.0%) 노린 재목(12.9%) 순이었다. 우점종(총 조사개체에 대한 각 종의 개체수 비율)은 애넓적물땡땡이(Enochrus simulans, 7.9%), 꼬마줄물방개(Hydaticus grammicus, 4.3%), 일본잎벌레(Galerucella nipponensis, 4.1%), 연물명나방(Elophila interruptalis, 3.1%), 양봉꿀벌(Apis mellifera, 2.2%) 순이었 다. 세 곳의 습지에서 조사된 딱정벌레목, 나비목, 잠자리목 곤충의 수는 매우 많았지만 세 습지 간에 차이는 없었다. 주남 습지대의 곤충다양도(H’), 풍부도(RI)는 각각 5.04, 59.10이었다.
        4,200원
        4.
        2011.08 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study is for the multi-dimensional analysis of diverse data sets for artificial reefs off the coast of Shimonoseki, Yamaguchi prefecture, Japan. Various data sets recorded in artificial reefs ground were integrated in new GIS software: to reveal the relationships between water temperature and fish schools; to visualize the quantitative connection between the reefs and the fish schools; and to compare the seabed types derived from two different data sources. The results obtained suggest that the application of GIS in analyzing multi-dimensional data is a better way to understand the characteristics of fish schools and environmental information around artificial reefs and particularly in the evaluation of the effectiveness of artificial reefs.
        4,300원