[Objectives] This study was conducted to investigate the scientific prevention and control of Solanum nigrum L. [Methods] Through experiments on S. nigrum from different sources, it was found that glyphosate stress ha...[Objectives] This study was conducted to investigate the scientific prevention and control of Solanum nigrum L. [Methods] Through experiments on S. nigrum from different sources, it was found that glyphosate stress had significant effects on antioxidant enzyme activity and oxidative damage of sensitive S. nigrum plants. [Results] Sensitive S. nigrum showed oxidative damage under glyphosate stress, while resistant S. nigrum responded to adversity damage by improving its antioxidant enzyme activity. The experimental results showed that the antioxidant enzymes and reduced glutathione of S. nigrum had certain metabolic detoxification effects under glyphosate stress. [Conclusions] This study provides a theoretical basis for scientific prevention and control of S. nigrum , and has a certain reference value for revealing the glyphosate resistance mechanism of S. nigrum .展开更多
In 2020,breast cancer emerged as the leading type of cancer worldwide,surpassing lung cancer in the number of new cases.The high cost and frequent failure of current treatments due to drug resistance and other challen...In 2020,breast cancer emerged as the leading type of cancer worldwide,surpassing lung cancer in the number of new cases.The high cost and frequent failure of current treatments due to drug resistance and other challenges underscore the urgent need for novel,affordable,efficient,and less toxic breast cancer therapies with fewer side effects.This study aims to investigate the molecular mechanisms by which Solanum Nigrum L.counters breast cancer,employing network pharmacology and molecular docking methods.Methods:The study identified the primary active compounds of Solanum Nigrum L.using databases such as TCMSP,TCM-ID,NPASS,and BATMAN.Prediction of the compounds'targets was facilitated by the SwissADME website,while main breast cancer targets were sourced from the GeneCards,OMIM,and TTD databases.The identified drug-disease intersection targets were analyzed using the STRING platform to construct a protein interaction network,which was then visualized and refined to select hub targets using Cytoscape 3.9.0 software.The Metascape database's MOCDE functional plugin was employed for identifying potential functional modules within the protein interaction network.Further,the DAVID database was utilized for GO and KEGG enrichment analyses of the intersection targets.Molecular docking of key active compounds with core targets was performed using AutoDock Tools 1.5.7 software.Lastly,the GEPIA2.0 database was used for predicting overall survival curves of hub targets and conducting a pan-cancer analysis.Results:Eleven active compounds of Solanum Nigrum L.,including Diosgenin,Tigogenin,and Quercetin,were identified from traditional Chinese medicine databases.We discovered 113 targets common to both Solanum Nigrum L.and breast cancer.Solanum Nigrum L.exhibits anti-breast cancer properties through interactions with 14 key targets,including SRC,PIK3R1,HSP90AA1,PIK3CA,AKT1,VEGFA,and ESR1.These interactions influence several critical signaling pathways,notably the cancer signaling pathway,PI3K-Akt signaling pathway,Ras signaling pathway,and EGFR signaling pathway.Survival analysis indicated that the aberrant expression of these 14 key targets significantly affects patient survival times.Furthermore,pan-cancer analysis highlighted marked differences in the expression patterns of these targets between breast cancer patients and control groups.Conclusion:Solanum Nigrum L.mediates its therapeutic impact on breast cancer through a comprehensive approach,targeting multiple components,targets,and pathways.展开更多
Background:Numerous studies have demonstrated the existence of approximately 7,500 genetic tomato varieties worldwide.Hence,it is crucial to assess the genetic diversity among tomato cultivars.This study aimed to inve...Background:Numerous studies have demonstrated the existence of approximately 7,500 genetic tomato varieties worldwide.Hence,it is crucial to assess the genetic diversity among tomato cultivars.This study aimed to investigate the genetic diversity of selected Iranian tomato cultivars(Solanum lycopersicum)using RAPD and ISSR molecular markers.Method:Ten RAPD primers and ten ISSR primers were employed to assess the genetic diversity among 10 tomato cultivars:Matin,RFT 112,Hirad,Golsar,Raha,Hengam,Hedah,Fasa,JS12,and Emerald.Data analysis involved the UPGMA algorithm and NTYSYSpc software.Results:RAPD analysis revealed close genetic proximity between Fasa and JS12,as well as between Raha and Hadieh.Conversely,the RFT 112,Hengam,Hirad,and Emerald cultivars exhibited significant genetic diversity within this group.ISSR primer analysis identified Hengam as the most diverse variety,while Matin,Emerald,and Vibrid,as well as Raha and JS12,displayed genetic similarities with minimal observed diversity.Furthermore,the overall analysis of the cultivars using RAPD and ISSR markers indicated that Hengam exhibited the highest diversity among all the varieties.Notably,Raha and JS12 demonstrated limited diversity in this analysis.Conclusion:This research demonstrates substantial genetic diversity among the investigated tomato varieties,with Hengam displaying the highest diversity within this group.Furthermore,ISSR markers proved more effective in determining genetic diversity in tomato plants.展开更多
Alcoholic liver injury is a liver disease caused by excessive alcohol consumption,which can lead to chronic liver disease death.Solanum Nigrum Linn taste bitter,cold,has the effect of clearing heat and detoxification,...Alcoholic liver injury is a liver disease caused by excessive alcohol consumption,which can lead to chronic liver disease death.Solanum Nigrum Linn taste bitter,cold,has the effect of clearing heat and detoxification,promoting blood and detumescence.Solanum Nigrum Linn fruit contains a variety of antioxidant enzymes,can remove the body produced by aerobic metabolism harmful substances.In this paper,a model of alcohol-induced liver injury in C57BL/6 mice was established to evaluate the protective effect of Solanum Nigrum Linn green fruit(SNGF)ethanolic extract on alcohol-induced liver injury.H&E staining and oil red O(ORO)staining showed that hepatic lobules were clearly demarcated,vacuoles were significantly reduced and lipid droplets were reduced in SNGF ethanolic extract treatment group.Serum levels of TC,TG,LDH,TBA,AKP,ALT and AST were decreased in the SNGF ethanolic extract treatment group,and SNGF ethanolic extract could clear reactive oxygen species(ROS)in time.MDA content was signifi cantly decreased after SNGF ethanolic extract treatment,while superoxide dismutase(SOD)and GSH-Px contents were increased after SNGF ethanolic extract treatment.These results suggest that SNGF ethanolic extract has a protective effect on alcohol-induced liver injury.展开更多
L波段数字航空通信系统(L band digital aeronautical communication system,LDACS)是未来航空宽带通信重要的基础设施之一,针对LDACS信号容易受到相邻波道大功率测距仪(distance measuring equipment,DME)信号干扰的问题,提出了联合正...L波段数字航空通信系统(L band digital aeronautical communication system,LDACS)是未来航空宽带通信重要的基础设施之一,针对LDACS信号容易受到相邻波道大功率测距仪(distance measuring equipment,DME)信号干扰的问题,提出了联合正交投影干扰抑制与单快拍稀疏分解的波达方向(direction of arrival,DOA)估计方法。通过子空间投影抑制DME干扰,然后使用单快拍数据构建伪协方差矩阵,对伪协方差矩阵求高阶幂,之后进行奇异值分解,并利用约束条件求解稀疏解得到期望信号来向的估计值。所提方法使用高阶伪协方差矩阵降低了噪声影响,仅用单快拍就可以准确估计LDACS信号的入射方向。仿真结果表明,改进单快拍高级幂(improved single snapshot high order power,ISS-HOP)L1-SVD算法的估计精度优于ISS-HOP-MUSIC算法。该方法可以有效抑制DME干扰,提高OFDM接收机性能。展开更多
针对L波段数字航空通信系统(L-band digital aeronautic communication system,LDACS)可用频谱资源有限且易受大功率测距仪(distance measuring equipment,DME)信号干扰的问题,提出一种基于降维循环谱和残差神经网络的频谱感知方法。首...针对L波段数字航空通信系统(L-band digital aeronautic communication system,LDACS)可用频谱资源有限且易受大功率测距仪(distance measuring equipment,DME)信号干扰的问题,提出一种基于降维循环谱和残差神经网络的频谱感知方法。首先理论推导分析了DME信号的循环谱特征;然后利用Fisher判别率(Fisher discriminant rate,FDR)提取循环频率能量最大的向量,通过主成分分析(principal component analysis,PCA)进行预处理特征增强;最后给出数据处理后的循环谱向量与卷积神经网络相结合的实现过程,实现了DME信号的有效检测。仿真结果表明,该方法对噪声不敏感,当信噪比不低于-15 dB时,平均检测概率大于90%。当信噪比不低于-14 dB,检测概率接近100%。展开更多
基金Supported by Key Laboratory Open Platform Project of Hunan Provincial Department of Education(16K047)Hunan Science and Technology Progject(2023NK 4289)。
文摘[Objectives] This study was conducted to investigate the scientific prevention and control of Solanum nigrum L. [Methods] Through experiments on S. nigrum from different sources, it was found that glyphosate stress had significant effects on antioxidant enzyme activity and oxidative damage of sensitive S. nigrum plants. [Results] Sensitive S. nigrum showed oxidative damage under glyphosate stress, while resistant S. nigrum responded to adversity damage by improving its antioxidant enzyme activity. The experimental results showed that the antioxidant enzymes and reduced glutathione of S. nigrum had certain metabolic detoxification effects under glyphosate stress. [Conclusions] This study provides a theoretical basis for scientific prevention and control of S. nigrum , and has a certain reference value for revealing the glyphosate resistance mechanism of S. nigrum .
基金supported by Local special projects in major health of Hubei Provincial Science and Technology Department(2022BCE054)Key scientific research projects of Hubei polytechnic University(23xjz08A)Hubei polytechnic University Huangshi Daye Lake high-tech Zone University Science Park joint open fund project(23xjz04AK).
文摘In 2020,breast cancer emerged as the leading type of cancer worldwide,surpassing lung cancer in the number of new cases.The high cost and frequent failure of current treatments due to drug resistance and other challenges underscore the urgent need for novel,affordable,efficient,and less toxic breast cancer therapies with fewer side effects.This study aims to investigate the molecular mechanisms by which Solanum Nigrum L.counters breast cancer,employing network pharmacology and molecular docking methods.Methods:The study identified the primary active compounds of Solanum Nigrum L.using databases such as TCMSP,TCM-ID,NPASS,and BATMAN.Prediction of the compounds'targets was facilitated by the SwissADME website,while main breast cancer targets were sourced from the GeneCards,OMIM,and TTD databases.The identified drug-disease intersection targets were analyzed using the STRING platform to construct a protein interaction network,which was then visualized and refined to select hub targets using Cytoscape 3.9.0 software.The Metascape database's MOCDE functional plugin was employed for identifying potential functional modules within the protein interaction network.Further,the DAVID database was utilized for GO and KEGG enrichment analyses of the intersection targets.Molecular docking of key active compounds with core targets was performed using AutoDock Tools 1.5.7 software.Lastly,the GEPIA2.0 database was used for predicting overall survival curves of hub targets and conducting a pan-cancer analysis.Results:Eleven active compounds of Solanum Nigrum L.,including Diosgenin,Tigogenin,and Quercetin,were identified from traditional Chinese medicine databases.We discovered 113 targets common to both Solanum Nigrum L.and breast cancer.Solanum Nigrum L.exhibits anti-breast cancer properties through interactions with 14 key targets,including SRC,PIK3R1,HSP90AA1,PIK3CA,AKT1,VEGFA,and ESR1.These interactions influence several critical signaling pathways,notably the cancer signaling pathway,PI3K-Akt signaling pathway,Ras signaling pathway,and EGFR signaling pathway.Survival analysis indicated that the aberrant expression of these 14 key targets significantly affects patient survival times.Furthermore,pan-cancer analysis highlighted marked differences in the expression patterns of these targets between breast cancer patients and control groups.Conclusion:Solanum Nigrum L.mediates its therapeutic impact on breast cancer through a comprehensive approach,targeting multiple components,targets,and pathways.
文摘Background:Numerous studies have demonstrated the existence of approximately 7,500 genetic tomato varieties worldwide.Hence,it is crucial to assess the genetic diversity among tomato cultivars.This study aimed to investigate the genetic diversity of selected Iranian tomato cultivars(Solanum lycopersicum)using RAPD and ISSR molecular markers.Method:Ten RAPD primers and ten ISSR primers were employed to assess the genetic diversity among 10 tomato cultivars:Matin,RFT 112,Hirad,Golsar,Raha,Hengam,Hedah,Fasa,JS12,and Emerald.Data analysis involved the UPGMA algorithm and NTYSYSpc software.Results:RAPD analysis revealed close genetic proximity between Fasa and JS12,as well as between Raha and Hadieh.Conversely,the RFT 112,Hengam,Hirad,and Emerald cultivars exhibited significant genetic diversity within this group.ISSR primer analysis identified Hengam as the most diverse variety,while Matin,Emerald,and Vibrid,as well as Raha and JS12,displayed genetic similarities with minimal observed diversity.Furthermore,the overall analysis of the cultivars using RAPD and ISSR markers indicated that Hengam exhibited the highest diversity among all the varieties.Notably,Raha and JS12 demonstrated limited diversity in this analysis.Conclusion:This research demonstrates substantial genetic diversity among the investigated tomato varieties,with Hengam displaying the highest diversity within this group.Furthermore,ISSR markers proved more effective in determining genetic diversity in tomato plants.
文摘Alcoholic liver injury is a liver disease caused by excessive alcohol consumption,which can lead to chronic liver disease death.Solanum Nigrum Linn taste bitter,cold,has the effect of clearing heat and detoxification,promoting blood and detumescence.Solanum Nigrum Linn fruit contains a variety of antioxidant enzymes,can remove the body produced by aerobic metabolism harmful substances.In this paper,a model of alcohol-induced liver injury in C57BL/6 mice was established to evaluate the protective effect of Solanum Nigrum Linn green fruit(SNGF)ethanolic extract on alcohol-induced liver injury.H&E staining and oil red O(ORO)staining showed that hepatic lobules were clearly demarcated,vacuoles were significantly reduced and lipid droplets were reduced in SNGF ethanolic extract treatment group.Serum levels of TC,TG,LDH,TBA,AKP,ALT and AST were decreased in the SNGF ethanolic extract treatment group,and SNGF ethanolic extract could clear reactive oxygen species(ROS)in time.MDA content was signifi cantly decreased after SNGF ethanolic extract treatment,while superoxide dismutase(SOD)and GSH-Px contents were increased after SNGF ethanolic extract treatment.These results suggest that SNGF ethanolic extract has a protective effect on alcohol-induced liver injury.
文摘L波段数字航空通信系统(L band digital aeronautical communication system,LDACS)是未来航空宽带通信重要的基础设施之一,针对LDACS信号容易受到相邻波道大功率测距仪(distance measuring equipment,DME)信号干扰的问题,提出了联合正交投影干扰抑制与单快拍稀疏分解的波达方向(direction of arrival,DOA)估计方法。通过子空间投影抑制DME干扰,然后使用单快拍数据构建伪协方差矩阵,对伪协方差矩阵求高阶幂,之后进行奇异值分解,并利用约束条件求解稀疏解得到期望信号来向的估计值。所提方法使用高阶伪协方差矩阵降低了噪声影响,仅用单快拍就可以准确估计LDACS信号的入射方向。仿真结果表明,改进单快拍高级幂(improved single snapshot high order power,ISS-HOP)L1-SVD算法的估计精度优于ISS-HOP-MUSIC算法。该方法可以有效抑制DME干扰,提高OFDM接收机性能。