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        검색결과 9

        1.
        2018.11 구독 인증기관·개인회원 무료
        This study was conducted to investigate effect of feeding beet pulp on reproductive performance, colostrum composition and microbiological characteristics in sows. A total of 12 sows(Landrace×Yorkshire) were randomly allotted three dietary treatments at gestating 90 days. The diets were prepared by adding 0, 5 and 10% of the beet pulp in basal diets. The pigs fed 5% beet pulp showed higher litter size than the 0 and 10% beet pulp treatments, although there was not significant among the treatments. Similarly, birth and 21days weight in piglet were not different among the treatments. In colostrum fat, protein, lactose, citric acid, solid, ffa, true protein were ranged to reference values, but not difference among the treatments. E.coli of feces was lower(P<0.01) in the 5% beet pulp than the 0 and 10% beet pulp treatments. But no effect was observed on Lactobacilli of feces among dietary treatments. These our results indicate the beet pulp has no significant effect of reproductive performance and colostrum composition in sows. But, 5% level beet pulp is effective for reduction of intestinal pathogenic microorganisms.
        2.
        2018.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        PURPOSES: The performance of both string line and multi-sonic sensor systems were investigated with respect to achieving smoothness in a 5 cm-thick Stone Mastic Asphalt (SMA) wearing layer. METHODS: String line and multi-sonic sensor systems were applied in the leading and trailing lanes, respectively, with two-lane simultaneous paving. RESULTS: Two systems did not show any significant statistical difference in initial International Roughness Index(IRI). The multi-sonic sensor system produced smoothness similar to that by the string line system. CONCLUSIONS : The string line system was found to be very effective in eliminating roughness below a wavelength of about 2 m, confirming that a string line reference is the best system to obtain a smoother surface. A multi-sonic sensor system evidently demonstrated the capability of replicating a reference level and, partly showed a roughness averaging effect within the system length. It can further be concluded that the effect of smoothness of the underlying layer on the upper layer smoothness cannot be ignored.
        4,000원
        3.
        2010.10 구독 인증기관·개인회원 무료
        Bee venom contains a variety of peptides and enzymes, including serine proteases. While the presence of serine proteases in bee venom has been demonstrated, the role of these proteins in bee venom has not been elucidated. Furthermore, there is currently no information available regarding the melanization response or the fibrin(ogen)olytic activity of bee venom serine protease, and the molecular mechanism of its action remains unknown. Here we show that bee venom serine protease (Bi-VSP) is a multifunctional enzyme. In insects, Bi-VSP acts as an arthropod prophenoloxidase (proPO)-activating factor (PPAF), thereby triggering the phenoloxidase (PO) cascade. Bi-VSP injected through the stinger induces a lethal melanization response in target insects by modulating the innate immune response. In mammals, Bi-VSP acts similarly to snake venom serine protease, which exhibits fibrin(ogen)olytic activity. Bi-VSP activates prothrombin and directly degrades fibrinogen into fibrin degradation products, defining roles forBi-VSP as a prothrombin activator, a thrombin-like protease, and a plasmin-like protease. These findings provide a novel view of the mechanism of bee venom in which the bee venom serine protease kills target insects via a melanization strategy and exhibits fibrin(ogen)olytic activity.
        4.
        2009.05 구독 인증기관·개인회원 무료
        We describe here the cloning and characterization of a cDNA encoding the ferritin heavy chain homologue (TeFerHCH) from the cricket Teleogryllus emma. The TeFerHCH gene spans 1,009 bp and consisted of four introns and five exons coding for 217 amino acids residues. The TeFerHCH subunit contained the conserved motifs for the ferroxidase center typical of vertebrate ferritin heavy chains and the iron-responsive element (IRE) sequence with a predicted stem-loop structure was present in the 5'-untranslated region (UTR) of TeFerHCH mRNA. TeFerHCH was grouped with the S type (HCH) in a phylogenetic tree. The TeFerHCH cDNA was expressed as approximately 27 kDa polypeptide in baculovirus-infected insect Sf9 cells. Northern blot analysis revealed that TeFerHCH exhibited ubiquitous expression and was upregulated by wounding and iron overload in the fatbody, suggesting a functional role for TeFerHCH in iron metabolism.
        5.
        2016.10 서비스 종료(열람 제한)
        Background : The objective of this study was to investigate antioxidant activities, inhibitory activities against heme induced colonic epithelial cell proliferations, anti-inflammatory activities and anthocyanin profiles in the anthocyanin rich fraction (ARFAM) from fruits of Aronia melanocarpa, where these are considered functional substances and available food coloring agents in Korea. Methods and Results : Anthocyanins were identified by reversed-phase C18 column chromatography and HPLC-DAD-ESI/MS analysis. To compare the antioxidative and anti-inflammatory capacity of Aronia melanocarpa berries, recognized for their high content of anthocyanins, isolation method was developed to obtain high-purity anthocyanins in the extract. Anthocyanin-rich fractions (ARFAM) enriched in anthocyanins were found to be potent strong inhibitory activity towards heme induced colonic epithelial cell proliferations are associated with an increased risk of colon cancer than acidic ethanol extract (AME). The immunomodulation properties were assessed in growth of both human B and T cells, its cytokines secretion such as IL-6 (interleukin-6) and TNF-α (tumor necrosis factor-alpha). AME enhanced interleukin-6 and reduced tumor necrosis factor-a production, whereas ARFAM only had a effect in increasing of IL-6 expression. Conclusion : These results demonstrated that there was no major relationship between the antioxidative and immunomodulation capacities of AME and ARFAM.
        6.
        2008.10 KCI 등재 서비스 종료(열람 제한)
        Most vacuolar proteins are synthesized on the endoplasmic reticulum (ER) as a proprotein precursor and then transported to vacuoles. In vacuoles, they are converted into the respective mature form. TaVPE1 and TaVPE2 were isolated from the cDNA library that was prepared from the wheat kernels at 16 and 18 days after fertilization (DAF). Additionally, putative TaVPEs (TaVPE3, TaVPE4) were isolated by inverse PCR (IPCR) using GrainGenes database. Each open reading frame (ORF) encodes 495, 497, 495, 456 amino acids, respectively. TaVPEs were closely related in respect to peptide comparisons and their sequence homologies were ranged from 84% to 93%. The TaVPE genes showed various expression patterns in response to exogenous treatment of phytohormones. The transcript of TaVPE1 was detected slightly and steadily after exposure to all phytohormones and the accumulation of TaVPE2 transcript was increased from 24 hours in NaCl treatment. The transcript of TaVPE3 was increased from 48 hours in response to H2O2 and decreased after exogenous application of ABA and salicylic acid. In case of TaVPE4, the transcript of TaVPE4 were weakly detected all time points of each phytohormone treatment.