Unrestrained inflammation is harmful to tissue repair and regeneration.Immune cell membrane-camouflaged nanoparticles have been proven to show promise as inflammation targets and multitargeted inflammation controls in...Unrestrained inflammation is harmful to tissue repair and regeneration.Immune cell membrane-camouflaged nanoparticles have been proven to show promise as inflammation targets and multitargeted inflammation controls in the treatment of severe inflammation.Prevention and early intervention of inflammation can reduce the risk of irreversible tissue damage and loss of function,but no cell membrane-camouflaged nanotechnology has been reported to achieve stage-specific treatment in these conditions.In this study,we investigated the prophylactic and therapeutic efficacy of fibroblast membrane-camouflaged nanoparticles for topical treatment of early inflammation(early pulpitis as the model)with the help of in-depth bioinformatics and molecular biology investigations in vitro and in vivo.Nanoparticles have been proven to act as sentinels to detect and competitively neutralize invasive Escherichia coli lipopolysaccharide(E.coli LPS)with resident fibroblasts to effectively inhibit the activation of intricate signaling pathways.Moreover,nanoparticles can alleviate the secretion of multiple inflammatory cytokines to achieve multitargeted anti-inflammatory effects,attenuating inflammatory conditions in the early stage.Our work verified the feasibility of fibroblast membrane-camouflaged nanoparticles for inflammation treatment in the early stage,which widens the potential cell types for inflammation regulation.展开更多
Three novel dithienylethenes modified by bifluoroboron β-diketonate fragments have been successfully developed. Upon blue light irradiation, they reached photostationary state within 2-5 s, as well as 100% conversion...Three novel dithienylethenes modified by bifluoroboron β-diketonate fragments have been successfully developed. Upon blue light irradiation, they reached photostationary state within 2-5 s, as well as 100% conversion ratio and photocyclization quantum yield of > 0.70. Such fascinating photochromism were endowed by collaborative role of electron-withdrawing effect of BF_(2)bdk group to reduce HOMO-LUMO electronic gap for the open isomer, together with intramolecular hydrogen bonds and CH-π interactions favoring antiparallel conformation fixation. Moreover, they displayed specific discrimination and photoswitchable bacterial imaging for S. aureus.展开更多
In this study,we show that changes in profitability predict a firm's stock returns and future profitability.We construct three horizon-based profitability changes,including short-,medium-,and long-term changes.We ...In this study,we show that changes in profitability predict a firm's stock returns and future profitability.We construct three horizon-based profitability changes,including short-,medium-,and long-term changes.We find that the predictive information for short-term changes in profitability is not subsumed by the profitability level in the Chinese stock market.We also find that short-term profitability changes generate an asymmetrical premium across different market states.Furthermore,we find that the beta anomaly is embedded in the premium generated by a short-term change in profitability.In addition,we explore the underlying mechanisms of the profitability premium and propose a heterogeneous investor belief channel to explain the profitability premium.We find that riskbased q-theory also helps explain the profitability premium.Therefore,the profitability premium comes from a mixed source and cannot be entirely explained by a single theory.展开更多
Summary What is already known on this topic?Rabies remains a serious public health problem in China.The only way to prevent the fatal disease was through timely and adequate post-exposure prophylaxis(PEP).What is adde...Summary What is already known on this topic?Rabies remains a serious public health problem in China.The only way to prevent the fatal disease was through timely and adequate post-exposure prophylaxis(PEP).What is added by this report?Among all the 126,133 cases visited Tianjin PEP clinics during 2020,more than 90%of the patients were injured by domestic dogs or cats,and about 70%of the animals received vaccination.Most outpatients have knowledge of rabies and show high compatibility with PEP.展开更多
基金This work was supported by National Natural Science Foundation of China(No.81991500,81991501,51903169,and 82170949)Key Research and Development Program of Sichuan Province(2021YFS0057 and 2020YFS0180)+2 种基金China Postdoctoral Science Foundation(2019M663529)Research funding for talents developing,West China Hospital of Stomatology,Sichuan University(RCDWJS2020-17)Research and Development Funding,West China Hosptial of Stomatology,Sichuan University(RD-02-202003 and RD-03-202104).
文摘Unrestrained inflammation is harmful to tissue repair and regeneration.Immune cell membrane-camouflaged nanoparticles have been proven to show promise as inflammation targets and multitargeted inflammation controls in the treatment of severe inflammation.Prevention and early intervention of inflammation can reduce the risk of irreversible tissue damage and loss of function,but no cell membrane-camouflaged nanotechnology has been reported to achieve stage-specific treatment in these conditions.In this study,we investigated the prophylactic and therapeutic efficacy of fibroblast membrane-camouflaged nanoparticles for topical treatment of early inflammation(early pulpitis as the model)with the help of in-depth bioinformatics and molecular biology investigations in vitro and in vivo.Nanoparticles have been proven to act as sentinels to detect and competitively neutralize invasive Escherichia coli lipopolysaccharide(E.coli LPS)with resident fibroblasts to effectively inhibit the activation of intricate signaling pathways.Moreover,nanoparticles can alleviate the secretion of multiple inflammatory cytokines to achieve multitargeted anti-inflammatory effects,attenuating inflammatory conditions in the early stage.Our work verified the feasibility of fibroblast membrane-camouflaged nanoparticles for inflammation treatment in the early stage,which widens the potential cell types for inflammation regulation.
基金financial support from the Natural Science Foundation of Henan Province(No.222300420501)the Science and Technology Project of Henan Province(No.212102210549)+1 种基金the Key Scientific Research Project of Higher Education of Henan Province(No.22A430007)National College Students Innovation and Entrepreneurship Training Program(No.202110482010)。
文摘Three novel dithienylethenes modified by bifluoroboron β-diketonate fragments have been successfully developed. Upon blue light irradiation, they reached photostationary state within 2-5 s, as well as 100% conversion ratio and photocyclization quantum yield of > 0.70. Such fascinating photochromism were endowed by collaborative role of electron-withdrawing effect of BF_(2)bdk group to reduce HOMO-LUMO electronic gap for the open isomer, together with intramolecular hydrogen bonds and CH-π interactions favoring antiparallel conformation fixation. Moreover, they displayed specific discrimination and photoswitchable bacterial imaging for S. aureus.
基金funded by the National Natural Science Foundation of China.(grant numbers:72171167,71532009,71471129,71501140).
文摘In this study,we show that changes in profitability predict a firm's stock returns and future profitability.We construct three horizon-based profitability changes,including short-,medium-,and long-term changes.We find that the predictive information for short-term changes in profitability is not subsumed by the profitability level in the Chinese stock market.We also find that short-term profitability changes generate an asymmetrical premium across different market states.Furthermore,we find that the beta anomaly is embedded in the premium generated by a short-term change in profitability.In addition,we explore the underlying mechanisms of the profitability premium and propose a heterogeneous investor belief channel to explain the profitability premium.We find that riskbased q-theory also helps explain the profitability premium.Therefore,the profitability premium comes from a mixed source and cannot be entirely explained by a single theory.
文摘Summary What is already known on this topic?Rabies remains a serious public health problem in China.The only way to prevent the fatal disease was through timely and adequate post-exposure prophylaxis(PEP).What is added by this report?Among all the 126,133 cases visited Tianjin PEP clinics during 2020,more than 90%of the patients were injured by domestic dogs or cats,and about 70%of the animals received vaccination.Most outpatients have knowledge of rabies and show high compatibility with PEP.