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손기호,Mizuki Ide,Eiji Goto 한국원예학회 2020 Horticulture, Environment, and Biotechnology Vol.61 No.2
We determined the eff ects of UV radiation and low root zone temperature on growth characteristics and phytochemicalsof Brassica napus (canola) cultivated in a controlled environment (25/20 °C 16/8 [light/dark]; 70% relative humidity;1000 μmol mol −1 CO 2 with photosynthetic photon fl ux density of 100 and 200 μmol m −2 s −1 for 7 and 18 days, respectively). The 18-day-old B. napus plants were treated for 5 days with two nutrient solution–temperature regimes (normal temperature[NT] and low-temperature [10 °C; LT]) and three levels of UV radiation (0, 0.3, and 0.6 W m −2 ). Treatment with 0.6 W m −2UV decreased quantum effi ciency of photosystem II the most. Most growth characteristics decreased under LT + UV treatments. Treatments with 0.6 W m −2 UV, compared to those without UV, signifi cantly inhibited shoot height. LT + 0.3 and+0.6 UV decreased shoot height the most. Temperature (T) × UV interaction did not aff ect most growth characteristics exceptleaf area, specifi c leaf weight, and shoot water content. Antioxidant capacity (total ORAC) resembled lipophilic ORAC andshowed the highest value in the LT + 0.6 UV treatment. T × UV interaction did not aff ect ORAC values, although LT +0.3 UV and LT + 0.6 UV treatments produced the highest values. Both LT and UV radiation enhanced the total phenoliccontent, and in the combined treatments, it was two times that of the control. UV intensities (0.3 and 0.6 W m −2 ) remainedconstant regardless of variation in root zone temperature. UV radiation enhanced total fl avonoid content equally across differentintensities; LT + 0.6 W m −2 UV treatment produced a relatively high value. Thus, LT and UV negatively aff ected plantgrowth parameters, except total dry weight, whereas LT, UV, or LT + UV positively aff ected antioxidant properties, totalphenolics, and fl avonoids, suggesting the potential of using an LT treatment in a hydroponic system as well as UV radiationto enhance growth performance of greenhouse and factory plants.
( Haruna Matsuda-hirose ),( Tomoko Yamate ),( Mizuki Goto ),( Akira Katoh ),( Hiroyuki Kouji ),( Yuya Yamamoto ),( Takashi Sakai ),( Naoto Uemura ),( Takashi Kobayashi ),( Yutaka Hatano ) 대한피부과학회 2019 Annals of Dermatology Vol.31 No.6
Background: The canonical Wnt/β-catenin signaling pathway is a fundamental regulatory system involved in various biological events. ICG-001 selectively blocks the interaction of β-catenin with its transcriptional co-activator cyclic AMP response element-binding protein (CBP). Recent studies have provided convincing evidence of the inhibitory effects of ICG-001 on Wnt-driven disease models, such as organ fibrosis, cancer, acute lymphoblastic leukemia, and asthma. However, the effects of ICG-001 in atopic dermatitis (AD) have not been investigated. Objective: To investigate whether β-catenin/CBP-dependent signaling was contributed in the pathogenesis of AD and ICG-001 could be a therapeutic agent for AD. Methods: We examined the effects of ICG-001 in an AD-like murine model generated by repeated topical application of the hapten, oxazolone (Ox). ICG-001 or vehicle alone was injected intraperitoneally every day during the development of AD-like dermatitis arising from once-daily Ox treatment. Results: Ox-induced AD-like dermatitis characterized by increases in transepidermal water loss, epidermal thickness, dermal thickness accompanied by increased myofibroblast and mast cell counts, and serum levels of thymic stromal lymphopoietin and thymus and activation- regulated chemokine, and decreases in stratum corneum hydration, were virtually normalized by the treatment with ICG-001. Elevated serum levels of periostin tended to be downregulated, without statistical significance. Conclusion: These results suggest that β-catenin/CBP-dependent signaling might be involved in the pathogenesis of AD and could be a therapeutic target. (Ann Dermatol 31(6) 631∼639, 2019)