Environmental degradation is one of the most debatable topics at international forums and it is considered a prime concern for the entire world.Therefore,researchers and policymakers have turned their attention from c...Environmental degradation is one of the most debatable topics at international forums and it is considered a prime concern for the entire world.Therefore,researchers and policymakers have turned their attention from conventional economic growth to green growth.Although the existing literature has discussed several determinants of green growth,the impact of economic policy uncertainty(EPU),renewable energy consumption(RENE),and institutional quality(IQ)on green growth(GGDP)is relatively unexplored.Hence,this study is the earliest attempt to investigate the impact of EPU,IQ,and RENE on GGDP for emerging seven(E-7)countries from 1996 to 2019.In doing so,we apply panel quantile regression(PQR).The empirical findings delineate that EPU has a negative impact on GGDP,whereas IQ and RENE enhance the GGDP in E-7 countries.Based on the outcomes,this study suggests policy implications for achieving targets of the SDG 07,SDG 08,SDG 13,and SDG 16.The governments of these countries can achieve higher GGDP by ensuring political stability and reliable macroeconomic policies and through making such flexible policies that can easily control or address unpredictable future economic issues.展开更多
Severe acute respiratory syndrome coronavirus 2(SARS-Co V-2)has precipitated multiple variants resistant to therapeutic antibodies.In this study,12 high-affinity antibodies were generated from convalescent donors in e...Severe acute respiratory syndrome coronavirus 2(SARS-Co V-2)has precipitated multiple variants resistant to therapeutic antibodies.In this study,12 high-affinity antibodies were generated from convalescent donors in early outbreaks using immune antibody phage display libraries.Of them,two RBD-binding antibodies(F61 and H121)showed high-affinity neutralization against SARS-Co V-2,whereas three S2-target antibodies failed to neutralize SARS-Co V-2.Following structure analysis,F61 identified a linear epitope located in residues G446–S494,which overlapped with angiotensinconverting enzyme 2(ACE2)binding sites,while H121 recognized a conformational epitope located on the side face of RBD,outside from ACE2 binding domain.Hence the cocktail of the two antibodies achieved better performance of neutralization to SARS-Co V-2.Importantly,these two antibodies also showed efficient neutralizing activities to the variants including B.1.1.7 and B.1.351,and reacted with mutations of N501 Y,E484 K,and L452 R,indicated that it may also neutralize the recent India endemic strain B.1.617.The unchanged binding activity of F61 and H121 to RBD with multiple mutations revealed a broad neutralizing activity against variants,which mitigated the risk of viral escape.Our findings revealed the therapeutic basis of cocktail antibodies against constantly emerging SARS-Co V-2 variants and provided promising candidate antibodies to clinical treatment of COVID-19 patients infected with broad SARS-Co V-2 variants.展开更多
Most COVID-19 convalescents can build effective anti-SARS-CoV-2 humoral immunity,but it remains unclear how long it can maintain and how efficiently it can prevent the reinfection of the emerging SARS-CoV-2 variants.H...Most COVID-19 convalescents can build effective anti-SARS-CoV-2 humoral immunity,but it remains unclear how long it can maintain and how efficiently it can prevent the reinfection of the emerging SARS-CoV-2 variants.Here,we tested the sera from 248 COVID-19 convalescents around 1 year post-infection in Wuhan,the earliest known epicenter.SARS-CoV-2 immunoglobulin G(IgG)was well maintained in most patients and potently neutralizes the infection of the original strain and the B.1.1.7 variant.However,varying degrees of immune escape was observed on the other tested variants in a patient-specific manner,with individuals showing remarkably broad neutralization potency.The immune escape can be largely attributed to several critical spike mutations.These results suggest that SARS-CoV-2 can elicit long-lasting immunity but this is escaped by the emerging variants.展开更多
基金supported by Chengdu University of Technology “Double First-Class”initiative Construction Philosophy and Social Sciences Key Construction Project “Research on the Forming Mechanism of Laborers’Democratic Participation in Digital Platform under Algorithm Control”(Project No.:ZDJS202210)the Philosophy and Social Science Research Fund of Chengdu University of Technology“Research on the Guarantee Mechanism of Workers’Right to Speak in the New Business under the People’s Democracy in the Whole Process”(Project No.:YJ2022-YB022)the views expressed in this article are those of the authors and do not represent the foundations.
文摘Environmental degradation is one of the most debatable topics at international forums and it is considered a prime concern for the entire world.Therefore,researchers and policymakers have turned their attention from conventional economic growth to green growth.Although the existing literature has discussed several determinants of green growth,the impact of economic policy uncertainty(EPU),renewable energy consumption(RENE),and institutional quality(IQ)on green growth(GGDP)is relatively unexplored.Hence,this study is the earliest attempt to investigate the impact of EPU,IQ,and RENE on GGDP for emerging seven(E-7)countries from 1996 to 2019.In doing so,we apply panel quantile regression(PQR).The empirical findings delineate that EPU has a negative impact on GGDP,whereas IQ and RENE enhance the GGDP in E-7 countries.Based on the outcomes,this study suggests policy implications for achieving targets of the SDG 07,SDG 08,SDG 13,and SDG 16.The governments of these countries can achieve higher GGDP by ensuring political stability and reliable macroeconomic policies and through making such flexible policies that can easily control or address unpredictable future economic issues.
基金supported by the National Science and Technology Major Project(2018ZX10711-001)(2017YFA0205100)。
文摘Severe acute respiratory syndrome coronavirus 2(SARS-Co V-2)has precipitated multiple variants resistant to therapeutic antibodies.In this study,12 high-affinity antibodies were generated from convalescent donors in early outbreaks using immune antibody phage display libraries.Of them,two RBD-binding antibodies(F61 and H121)showed high-affinity neutralization against SARS-Co V-2,whereas three S2-target antibodies failed to neutralize SARS-Co V-2.Following structure analysis,F61 identified a linear epitope located in residues G446–S494,which overlapped with angiotensinconverting enzyme 2(ACE2)binding sites,while H121 recognized a conformational epitope located on the side face of RBD,outside from ACE2 binding domain.Hence the cocktail of the two antibodies achieved better performance of neutralization to SARS-Co V-2.Importantly,these two antibodies also showed efficient neutralizing activities to the variants including B.1.1.7 and B.1.351,and reacted with mutations of N501 Y,E484 K,and L452 R,indicated that it may also neutralize the recent India endemic strain B.1.617.The unchanged binding activity of F61 and H121 to RBD with multiple mutations revealed a broad neutralizing activity against variants,which mitigated the risk of viral escape.Our findings revealed the therapeutic basis of cocktail antibodies against constantly emerging SARS-Co V-2 variants and provided promising candidate antibodies to clinical treatment of COVID-19 patients infected with broad SARS-Co V-2 variants.
基金supported by grants from the National Science and Technology Major Project(2018YFA0900801)China NSFC projects(32041007,32070160,and 82041004)+2 种基金Fundamental Research Funds for the Central Universities(2042021kf0220 and 2042020kf0024)the Advanced Customer Cultivation Project of Wuhan National Biosafety Laboratory(2021ACCP-MS10)Special Fund for COVID-19 Research of Wuhan University.
文摘Most COVID-19 convalescents can build effective anti-SARS-CoV-2 humoral immunity,but it remains unclear how long it can maintain and how efficiently it can prevent the reinfection of the emerging SARS-CoV-2 variants.Here,we tested the sera from 248 COVID-19 convalescents around 1 year post-infection in Wuhan,the earliest known epicenter.SARS-CoV-2 immunoglobulin G(IgG)was well maintained in most patients and potently neutralizes the infection of the original strain and the B.1.1.7 variant.However,varying degrees of immune escape was observed on the other tested variants in a patient-specific manner,with individuals showing remarkably broad neutralization potency.The immune escape can be largely attributed to several critical spike mutations.These results suggest that SARS-CoV-2 can elicit long-lasting immunity but this is escaped by the emerging variants.