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- 저자 : ( Naoki Takaya ) (검색결과 2 건)
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( Yang Xia ),( Haijun Yu ),( Zhemin Zhou ),( Naoki Takaya ),( Shengmin Zhou ),( Ping Wang ) 한국미생물생명공학회(구 한국산업미생물학회) 2018 Journal of microbiology and biotechnology Vol.28 No.1
Most eukaryotic peroxiredoxins (Prxs) are readily inactivated by a high concentration of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) during catalysis owing to their “GGLG” and “YF” motifs. However, such oxidative stress sensitive motifs were not found in the previously identified filamentous fungal Prxs. Additionally, the information on filamentous fungal Prxs is limited and fragmentary. Herein, we cloned and gained insight into Aspergillus nidulans Prx (An.PrxA) in the aspects of protein properties, catalysis characteristics, and especially H<sub>2</sub>O<sub>2</sub> tolerability. Our results indicated that An.PrxA belongs to the newly defined family of typical 2-Cys Prxs with a marked characteristic that the “resolving” cysteine (C<sub>R</sub>) is invertedly located preceding the “peroxidatic” cysteine (C<sub>P</sub>) in amino acid sequences. The inverted arrangement of C<sub>R</sub> and C<sub>P</sub> can only be found among some yeast, bacterial, and filamentous fungal deduced Prxs. The most surprising characteristic of An.PrxA is its extraordinary ability to resist inactivation by extremely high concentrations of H<sub>2</sub>O<sub>2</sub>, even that approaching 600 mM. By screening the H<sub>2</sub>O<sub>2</sub>-inactivation effects on the components of Prx systems, including Trx, Trx reductase (TrxR), and Prx, we ultimately determined that it is the robust filamentous fungal TrxR rather than Trx and Prx that is responsible for the extreme H<sub>2</sub>O<sub>2</sub> tolerence of the An.PrxA system. This is the first investigation on the effect of the electron donor partner in the H<sub>2</sub>O<sub>2</sub> tolerability of the Prx system.
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IS THE EFFECT OF LUXURY ADVERTISING ON CONSUMER EVALUATIONS OF FASHION BRANDS POSITIVE OR NEGATIVE?
Akinori Ono,Yuka Eguro,Taichi Narisawa,Naoki Nomura,Takaya Sato,Yuna Sato,Yuta Shibamoto,Soichiro Yoshida 글로벌지식마케팅경영학회 2017 Global Fashion Management Conference Vol.2017 No.07
Some clothing manufacturers and retailers use attractive endorsers on their advertising. However, according to recent research, consumers with low body esteem evaluate the clothing items more negatively when they try them on in the fitting room and find that they are inferior to the attractive advertising endorser wearing the same items (Dahl, Argo, & Morales, 2012). Is it always true? Should clothing companies not use attractive endorsers? When Dahl, et al. (2012) emphasized the negative impact of an attractive endorser and discussed body esteem, they implicitly assumed body-related consumption, in which consumers wear clothing items to enrich their physical appearance. However, other research on fashion has suggested that consumers often wear clothing items for self-expression (e.g., Piacentiti & Malier, 2004). Luxury fashion brands have been particularly regarded as symbols of wealth, so consumers wear luxury fashion clothing items to show off their high status (Shavitt, 1989; Wilcox, Kim & Sen, 2009). Thus, status-related consumption should be considered in addition to body-related consumption. Considering status-related consumption, this research introduces another kind of self-esteem, i.e., status esteem, which refers to how confident consumers are in their status. Assuming that there are two types of self-esteem, body esteem (or external esteem) and status esteem (or internal esteem), both of which are related to clothing, we hypothesize that consumers low in status esteem will evaluate a status-related product more positively than consumers high in status esteem when their consumption aligns (vs. when it does not align) with an attractive endorser even though they are low in body esteem. To test the hypothesis, we conducted three laboratory experiments. The result of multiple regression analysis showed that our hypothesis was supported. By suggesting that even consumers with low body and status esteem can evaluate status-related product positively, when finding that they are inferior to the advertising endorser in terms of body, this research expands our understanding on how attractive advertising endorsers affect consumer evaluation of clothing items focusing on two kinds of selfesteem, body and status esteem.
ScienceON
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