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Total 21352 results found since Jan 2013.
Opportunities and challenges for ribosome-inactivating proteins in traditional Chinese medicine plants
Toxicon. 2023 Sep 6:107278. doi: 10.1016/j.toxicon.2023.107278. Online ahead of print.ABSTRACTRibosome-inactivating proteins (RIPs) are a class of cytotoxic rRNA N-glycosylase, which widely exist in higher plants in different taxonomy, including many traditional Chinese medicinal materials and vegetables and fruits. In this paper, the traditional Chinese medicinal plants containing RIPs protein were sorted out, and their pharmacological effects and clinical applications were analyzed. Since many RIPs in traditional Chinese medicine plants exhibit antiviral and antitumor activities and show great clinical application potent...
Source: Toxicon - September 8, 2023 Category: Toxicology Authors: Yi-Xuan Yang Xin-Yi Wang Tong Lin Yu Sun Yi-Cheng Yu Zhen-Hong Zhu Source Type: research
Genipa americana L.: A New Phytochemical for White Hair Coloring
In conclusion, the temperature and concentration of the extract were the variables that mostly influenced the color and hair damage. A new approach for hair dyeing was established where iridoids may potentially be useful as a natural hair dyeing.PMID:37681514 | DOI:10.1002/cbdv.202300083
Source: Chemistry and Biodiversity - September 8, 2023 Category: Biochemistry Authors: Andr éa V Machado Luana R O Menezes Adilson A M Santana Maria N Marques Adriana K de Lima Amanda Cano Patr ícia Severino Eliana B Souto Juliana C Cardoso Source Type: research
Opportunities and challenges for ribosome-inactivating proteins in traditional Chinese medicine plants
Toxicon. 2023 Sep 6:107278. doi: 10.1016/j.toxicon.2023.107278. Online ahead of print.ABSTRACTRibosome-inactivating proteins (RIPs) are a class of cytotoxic rRNA N-glycosylase, which widely exist in higher plants in different taxonomy, including many traditional Chinese medicinal materials and vegetables and fruits. In this paper, the traditional Chinese medicinal plants containing RIPs protein were sorted out, and their pharmacological effects and clinical applications were analyzed. Since many RIPs in traditional Chinese medicine plants exhibit antiviral and antitumor activities and show great clinical application potent...
Source: Toxicon - September 8, 2023 Category: Toxicology Authors: Yi-Xuan Yang Xin-Yi Wang Tong Lin Yu Sun Yi-Cheng Yu Zhen-Hong Zhu Source Type: research
Structurally Diverse Sesquiterpenoids with NO Production and α-Glucosidase Inhibitory Activities from the Fruits of Schisandra chinensis
Chem Biodivers. 2023 Sep 7:e202301203. doi: 10.1002/cbdv.202301203. Online ahead of print.ABSTRACTChemical fractionation of the EtOAc partition, generated from the EtOH extract of the fruits of Schisandra chinensis, afforded a series of sesquiterpenyl constituents including two new cadinanes, a new eudesmane, two new widdranes (a handling artefact and a new natural product), a new bisabolane and two new natural cuparane enantiomers, along with 15 known structurally related analogues. Structures of the new compounds were unambiguously characterized by interpretation of detailed spectroscopic data including ESIMS and 1D/2D N...
Source: Chemistry and Biodiversity - September 7, 2023 Category: Biochemistry Authors: Ping Sun Yin-Bo Pan Ren-Fen Ma Xue-Chun Zhao Yin-Yin Wang Lei Miao Hua Zhang Source Type: research
Effects of preharvest chitosan-Myrtus communis essential oil composite and postharvest nanocellulose on quality of strawberry
The objective of this study was to investigate the effects of preharvest chitosan-Myrtus communis essential oil composite (1.5 and 3.0 %) and postharvest nanocellulose (0.3 and 0.6 %) on the quality of strawberries. The gas chromatography-mass spectrometry (GC/MS) analysis led to identification of 32 compounds in the Myrtus communis essential oil. The study showed that using CHS-ES composite coating for foliar application could increase the lifespan of the fruit by up to 24 days. This is because it increases the levels of components, such as phenol content (TPC) total flavonoids content (TFC) vitamin C, firmness and SSC. I...
Source: International Journal of Biological Macromolecules - September 7, 2023 Category: Biochemistry Authors: Abdollah Ehtesham Nia Elham Malekzadeh Shirin Taghipour Aliasghar Tatari Zeinab Ghasemi Arshad Source Type: research
Design strategies for positively charged endolysins: Insights into Artilysin development
Biotechnol Adv. 2023 Sep 5:108250. doi: 10.1016/j.biotechadv.2023.108250. Online ahead of print.ABSTRACTEndolysins are bacteriophage-encoded enzymes that can specifically degrade the peptidoglycan layer of bacterial cell wall, making them an attractive tool for the development of novel antibacterial agents. The use of genetic engineering techniques for the production and modification of endolysins offers the opportunity to customize their properties and activity against specific bacterial targets, paving the way for the development of personalized therapies for bacterial infections. Gram-negative bacteria possess an outer ...
Source: Biotechnology Advances - September 7, 2023 Category: Biotechnology Authors: Jose Vicente Carratal á Anna Ar ís Elena Garcia-Fruit ós Neus Ferrer-Miralles Source Type: research
Effects of preharvest chitosan-Myrtus communis essential oil composite and postharvest nanocellulose on quality of strawberry
The objective of this study was to investigate the effects of preharvest chitosan-Myrtus communis essential oil composite (1.5 and 3.0 %) and postharvest nanocellulose (0.3 and 0.6 %) on the quality of strawberries. The gas chromatography-mass spectrometry (GC/MS) analysis led to identification of 32 compounds in the Myrtus communis essential oil. The study showed that using CHS-ES composite coating for foliar application could increase the lifespan of the fruit by up to 24 days. This is because it increases the levels of components, such as phenol content (TPC) total flavonoids content (TFC) vitamin C, firmness and SSC. I...
Source: International Journal of Biological Macromolecules - September 7, 2023 Category: Biochemistry Authors: Abdollah Ehtesham Nia Elham Malekzadeh Shirin Taghipour Aliasghar Tatari Zeinab Ghasemi Arshad Source Type: research
Design strategies for positively charged endolysins: Insights into Artilysin development
Biotechnol Adv. 2023 Sep 5:108250. doi: 10.1016/j.biotechadv.2023.108250. Online ahead of print.ABSTRACTEndolysins are bacteriophage-encoded enzymes that can specifically degrade the peptidoglycan layer of bacterial cell wall, making them an attractive tool for the development of novel antibacterial agents. The use of genetic engineering techniques for the production and modification of endolysins offers the opportunity to customize their properties and activity against specific bacterial targets, paving the way for the development of personalized therapies for bacterial infections. Gram-negative bacteria possess an outer ...
Source: Biotechnology Advances - September 7, 2023 Category: Biotechnology Authors: Jose Vicente Carratal á Anna Ar ís Elena Garcia-Fruit ós Neus Ferrer-Miralles Source Type: research
Effect of resolution enhancement using metal ion assisted strategy based on electrospray ionization-ion mobility spectrometry: A case study of carbendazim and thiabendazole in fruits
Talanta. 2023 Sep 2;267:125151. doi: 10.1016/j.talanta.2023.125151. Online ahead of print.ABSTRACTA method for the rapid and simultaneous determination of carbendazim and thiabendazole residues by electrospray ionization-ion mobility spectrometry (ESI-IMS) combined with a metal ion-assisted technique was developed and validated in different fruit matrices. The metal ion assisted strategy was performed instead of tedious pre-separation procedures to overcome the limitation of low resolution of IMS. Four transition metal cations, Co(II), Ni(II), Cu(II), and Zn(II), were screened and their interactions with carbendazim and th...
Source: Talanta - September 6, 2023 Category: Chemistry Authors: Wen Liu Yanjing Chen Fei Liu Xurong Yin Jiayi Cai Yong Xia Jianna Yu Guoxing Jing Wenshan Li Wenjie Liu Source Type: research
Iron-doped carbon nitride with enhanced peroxidase-like activity for smartphone-based colorimetric assay of total antioxidant capacity
Talanta. 2023 Aug 30;267:125141. doi: 10.1016/j.talanta.2023.125141. Online ahead of print.ABSTRACTThe facile detection of total antioxidant capacity (TAC) is limited by in-situ analysis, because it usually requires complex laboratory equipments. Here, a colorimetric assay for TAC detection is developed based on the peroxidase-like activity of iron-doped carbon nitride (Fe/NC) and the smartphone platform. The peroxidase-like activity of carbon nitride is greatly improved by the introduction of Fe atoms, and the active sites turn to Fe-Nx coordination groups in the Fe/NC. The inhibition mechanism of the chromogenic reaction...
Source: Talanta - September 6, 2023 Category: Chemistry Authors: Yanrong Miao Mingyuan Xia Chenyu Tao Jiqing Zhang Pengjuan Ni Yuanyuan Jiang Yizhong Lu Source Type: research
Different sized gold nanoparticles for array-based sensing of pesticides and its application for strawberry pollution monitoring
In this study, gold nanoparticles (AuNPs) of varying sizes have been exploited as sensing units to design a non-enzymatic colorimetric sensor array for the detection and discrimination of various pesticides including; bifenazate (BF), paraquat (PQ), diazinon (DZ), thiometon (TM), and carbendazim (CD) and chlorpyrifos (CP). Because of their strong size- and environmentally-dependent properties, AuNPs with different sizes produced distinguished plasmonic patterns in the presence of pesticides at a vast range of concentrations (25-800 ng mL-1). Plasmonic patterns of sensor units have been analyzed by various data visualizatio...
Source: Talanta - September 6, 2023 Category: Chemistry Authors: Masoumeh Abdali Forough Ghasemi Hossein Mir Seyed Hosseini Vahideh Mahdavi Source Type: research
BIoecology of Oncideres cervina Thomson (Coleoptera: Cerambycidae) on Persea americana Mill. (Lauraceae)
The objective was to record O. cervina girdling branches of Persea americana Mill. (Lauraceae) for the first time, check the number of oviposition incisions (Noi) as a function of the diameter of branch sections, period of emergence, and describe the larval-pupal chamber. Individuals of O. cervina were observed, for the first time, in P. americana orchards in Santa Maria, Rio Grande do Sul, Brazil. The middle section of branches (40-60 cm interval) had higher number of incisions. Girdled branches with a diameter of 40-50 mm had higher number of them. Adults emerged from November through January. Larval-pupal boreholes had ...
Source: Braz J Biol - September 6, 2023 Category: Biology Authors: M P B Pasini E Engel K Engel A A Mallmann D Link Source Type: research
