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- 저자 : Gu Cuihua (검색결과 4 건)
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Gu Cuihua,Hong Sidan,Wang Jie,Shang Linxue,Zhang Guozhe,Zhao Yu,Ma Qingqing,Ma Dandan 한국원예학회 2024 Horticulture, Environment, and Biotechnology Vol.65 No.1
Lagerstroemia indica is a summer ornamental fl owering tree, belonging to the Lythraceae family. Its fl ower color is a key ornamental characteristic. Recent research indicates that WRKY and bZIP transcription factors play important role in f l ower color formation. Based on the transcriptome database of L. indica , this study identifi ed 85 LibZIPs and 61 LiWRKYs from the L. indica transcriptome database and analyzed their expression profi les using qRT-PCR. Phylogenetic analysis divided LibZIPs into 11 subfamilies and LiWRKYs into six subfamilies. Nine LibZIPs and four LiWRKYs were found to have higher expression in colored samples compared to the white sample. LibZIP31 , LibZIP65 , LibZIP34 , LiWRKY16 , LiWRKY25 , LiWRKY40 , and LiWRKY67 may play important roles in fl ower color formation in L. indica . These results provide valuable information for further functional analysis of the bZIP and WRKY genes families in L. indica and help clarify their roles in fl ower color formation.
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Novel extraction technologies and potential applications of egg yolk proteins
Luping Gu,Yufang Liu,Wanqiu Zhang,Junhua Li,Cuihua Chang,Yujie Su,Yanjun Yang 한국식품과학회 2023 Food Science and Biotechnology Vol.32 No.2
The high nutritional value and diverse functional properties of egg yolk proteins have led to its widespread use in the fields of food, medicine, and cosmetics. Various extraction methods have been reported to obtain the proteins from egg yolk, however, their utilization is limited due to the relatively low extraction efficiency and/or toxic solvents involved. Several simpler and greener technologies, especially physical fields (ultrasound), have been successfully developed to improve the extraction efficiency. The egg yolk proteins may exert multiple biological activities, enabling them to be a promising tool in improve human health and wellbeing, such as anti-obesity, anti-atherosclerosis, anti-osteoporosis, diagnosis and therapy for SARS-CoV-2 infections. This article summarizes the novel extraction technologies and latest applications of the egg yolk proteins in the recent 5 years, which should stimulate their utilization as health-promoting functional ingredients in foods and other commercial products.
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Feiyan Chen,Kexuan Zhu,Lin Chen,Liufeng Ouyang,Cuihua Chen,Ling Gu,Yucui Jiang,Zhongli Wang,Zixuan Lin,Qiang Zhang,Xiao Shao,Jianguo Dai,Yunan Zhao 고려인삼학회 2020 Journal of Ginseng Research Vol.44 No.3
Background: Ginseng effectively reduces fatigue in both animal models and clinical trials. However, themechanism of action is not completely understood, and its molecular targets remain largely unknown. Methods: By screening for proteins that interact with the primary components of ginseng (ginsenosides)in an affinity chromatography assay, we have identified muscle-type creatine kinase (CK-MM) as a potentialtarget in skeletal muscle tissues. Results: Biolayer interferometry analysis showed that ginsenoside metabolites, instead of parent ginsenosides,had direct interaction with recombinant human CK-MM. Subsequently, 20(S)-protopanaxadiol(PPD), which is a ginsenoside metabolite and displayed the strongest interaction with CK-MM in thestudy, was selected as a representative to confirm direct binding and its biological importance. Biolayerinterferometry kinetics analysis and isothermal titration calorimetry assay demonstrated that PPDspecifically bound to human CK-MM. Moreover, the mutation of key amino acids predicted by moleculardocking decreased the affinity between PPD and CK-MM. The direct binding activated CK-MM activityin vitro and in vivo, which increased the levels of tissue phosphocreatine and strengthened the functionof the creatine kinase/phosphocreatine system in skeletal muscle, thus buffering cellular ATP, delayingexercise-induced lactate accumulation, and improving exercise performance in mice. Conclusion: Our results suggest a cellular target and an initiating molecular event by which ginsengreduces fatigue. All these findings indicate PPD as a small molecular activator of CK-MM, which can helpin further developing better CK-MM activators based on the dammarane-type triterpenoid structure.
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Chen, Feiyan,Zhu, Kexuan,Chen, Lin,Ouyang, Liufeng,Chen, Cuihua,Gu, Ling,Jiang, Yucui,Wang, Zhongli,Lin, Zixuan,Zhang, Qiang,Shao, Xiao,Dai, Jianguo,Zhao, Yunan The Korean Society of Ginseng 2020 Journal of Ginseng Research Vol.44 No.3
Background: Ginseng effectively reduces fatigue in both animal models and clinical trials. However, the mechanism of action is not completely understood, and its molecular targets remain largely unknown. Methods: By screening for proteins that interact with the primary components of ginseng (ginsenosides) in an affinity chromatography assay, we have identified muscle-type creatine kinase (CK-MM) as a potential target in skeletal muscle tissues. Results: Biolayer interferometry analysis showed that ginsenoside metabolites, instead of parent ginsenosides, had direct interaction with recombinant human CK-MM. Subsequently, 20(S)-protopanaxadiol (PPD), which is a ginsenoside metabolite and displayed the strongest interaction with CK-MM in the study, was selected as a representative to confirm direct binding and its biological importance. Biolayer interferometry kinetics analysis and isothermal titration calorimetry assay demonstrated that PPD specifically bound to human CK-MM. Moreover, the mutation of key amino acids predicted by molecular docking decreased the affinity between PPD and CK-MM. The direct binding activated CK-MM activity in vitro and in vivo, which increased the levels of tissue phosphocreatine and strengthened the function of the creatine kinase/phosphocreatine system in skeletal muscle, thus buffering cellular ATP, delaying exercise-induced lactate accumulation, and improving exercise performance in mice. Conclusion: Our results suggest a cellular target and an initiating molecular event by which ginseng reduces fatigue. All these findings indicate PPD as a small molecular activator of CK-MM, which can help in further developing better CK-MM activators based on the dammarane-type triterpenoid structure.
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