In order to establish a quick and specific method which could identify the avian-derived ingredients,this study used 16 S rRNA gene sequence as target site,and designed the specific primers of chicken,pigeon meat and ...In order to establish a quick and specific method which could identify the avian-derived ingredients,this study used 16 S rRNA gene sequence as target site,and designed the specific primers of chicken,pigeon meat and quail meat. The DNA of common livestock and poultry meat( including mutton,beef,pork,rabbit meat,pigeon meat,quail meat,chicken,duck and goose) was used as template. Though PCR amplification and specific detection,a quick determination method was established to identify the avian-derived ingredients. The results showed that the selected primers could identify the ingredients of animal origin effectively and quickly. The method was convenient and concise,and could detect the chicken-derived,pigeon-derived,quail-derived ingredients in livestock and poultry food quickly and accurately.展开更多
In 2022,a global outbreak of Mpox(formerly monkeypox)occurred in various countries across Europe and America and rapidly spread to more than 100 countries and regions.The World Health Organization declared the outbrea...In 2022,a global outbreak of Mpox(formerly monkeypox)occurred in various countries across Europe and America and rapidly spread to more than 100 countries and regions.The World Health Organization declared the outbreak to be a public health emergency of international concern due to the rapid spread of the Mpox virus.Consequently,nations intensified their efforts to explore treatment strategies aimed at combating the infection and its dissemination.Nevertheless,the available therapeutic options for Mpox virus infection remain limited.So far,only a few numbers of antiviral compounds have been approved by regulatory authorities.Given the high mutability of the Mpox virus,certain mutant strains have shown resistance to existing pharmaceutical interventions.This highlights the urgent need to develop novel antiviral drugs that can combat both drug resistance and the potential threat of bioterrorism.Currently,there is a lack of comprehensive literature on the pathophysiology and treatment of Mpox.To address this issue,we conducted a review covering the physiological and pathological processes of Mpox infection,summarizing the latest progress of anti-Mpox drugs.Our analysis encompasses approved drugs currently employed in clinical settings,as well as newly identified small-molecule compounds and antibody drugs displaying potential antiviral efficacy against Mpox.Furthermore,we have gained valuable insights from the process of Mpox drug development,including strategies for repurposing drugs,the discovery of drug targets driven by artificial intelligence,and preclinical drug development.The purpose of this review is to provide readers with a comprehensive overview of the current knowledge on Mpox.展开更多
This study uses a literature review to probe the prevalence and trends of induced abortions among unmarried women since the 1980s.Premarital pregnancy has become more and more common,and this has pushed the premarital...This study uses a literature review to probe the prevalence and trends of induced abortions among unmarried women since the 1980s.Premarital pregnancy has become more and more common,and this has pushed the premarital abortion rate still higher.With the premarital abortion rate remaining markedly high in China,the percentage of women who have experienced premarital abortions has risen stead-ily with the passage of time.Not only has the prevalence of premarital abortions increased in China on the whole,but there is evidence that some young women have had multiple abortions.Premarital abortion is more prevalent in urban areas and among migrants and less-educated women.The huge number of premarital abor-tions not only signifies a palpable,unmet need for contraceptives,but also repre-sents an immense number of unrealized births.In the years to come,it is imperative to strengthen research into premarital abortions,to optimize the approaches to data collection and analysis,and to improve reproductive health services for unmarried women.展开更多
In 2020,China’s sex ratio at birth(SRB)stood at 111.3,still exhibiting a notable bias.Son preference ranks as the most essential and fundamental reason for the skewed SRB.This study,using a mixed-methods approach,see...In 2020,China’s sex ratio at birth(SRB)stood at 111.3,still exhibiting a notable bias.Son preference ranks as the most essential and fundamental reason for the skewed SRB.This study,using a mixed-methods approach,seeks to address what the temporal changes and regional differences in SRB and the gender preferences are in China,whether and why son preference persists,how people practice such preferences and how they relate to the persistently high SRB in the Chinese con-text.Analysis of data from five national sample surveys finds that son preference is waning and daughter preference is gaining momentum,consistent with significant downward trends in SRB.The study also reveals that value shifts and intergenera-tional relations have a strong influence on gender preferences and their translation into reproductive behavior.Additionally,this study highlights the challenges that are hindering the decline in son preference,suggesting that more efforts are needed to empower women and to change social norms.展开更多
The sex ratio at birth(SRB)in China began to rise rapidly in the 1980s and declined after 2009.The ratio has maintained a downward trend since 2009,but is still higher than the normal level.The government of China has...The sex ratio at birth(SRB)in China began to rise rapidly in the 1980s and declined after 2009.The ratio has maintained a downward trend since 2009,but is still higher than the normal level.The government of China has committed to redress the distortions in SRB and has initiated multiple actions to accomplish that end.Against a background of economic development,accelerating modernization and the empowerment of women,China has strengthened governance and made significant progress in balancing the sex ratio at birth.This paper examines the trend for SRB in China,summarizes the practices that address gender imbalance at birth,and analyzes the challenges ahead.展开更多
基金Supported by New Agricultural Variety,Technology and Model Project in Jiangsu Province(SXGC2015298)Project on Prospective Study of Social Development in Yangzhou City(YZ2014188)+1 种基金Science and Technology Public Service Platform Construction Project in Yangzhou City(YZ2015162)National Agricultural Product Quality and Safety Risk Assessment Project in 2016(GJFP2016007)
文摘In order to establish a quick and specific method which could identify the avian-derived ingredients,this study used 16 S rRNA gene sequence as target site,and designed the specific primers of chicken,pigeon meat and quail meat. The DNA of common livestock and poultry meat( including mutton,beef,pork,rabbit meat,pigeon meat,quail meat,chicken,duck and goose) was used as template. Though PCR amplification and specific detection,a quick determination method was established to identify the avian-derived ingredients. The results showed that the selected primers could identify the ingredients of animal origin effectively and quickly. The method was convenient and concise,and could detect the chicken-derived,pigeon-derived,quail-derived ingredients in livestock and poultry food quickly and accurately.
基金supported by National Natural Science Foundation of China(82002192)Natural Science Foundation of Hubei Province(2022CFB539,2022CFD107)+2 种基金Young and middle-aged Talents Project of Hubei Provincial Education Department(Q20222605)Scientific Research Ability Cultivation Fund of Hubei University of Arts and Science(2021KPGJ06)Science and Technology Plan(in the field of Medical and health care)of Xiangyang(2022YL05B,2022YL12A).
文摘In 2022,a global outbreak of Mpox(formerly monkeypox)occurred in various countries across Europe and America and rapidly spread to more than 100 countries and regions.The World Health Organization declared the outbreak to be a public health emergency of international concern due to the rapid spread of the Mpox virus.Consequently,nations intensified their efforts to explore treatment strategies aimed at combating the infection and its dissemination.Nevertheless,the available therapeutic options for Mpox virus infection remain limited.So far,only a few numbers of antiviral compounds have been approved by regulatory authorities.Given the high mutability of the Mpox virus,certain mutant strains have shown resistance to existing pharmaceutical interventions.This highlights the urgent need to develop novel antiviral drugs that can combat both drug resistance and the potential threat of bioterrorism.Currently,there is a lack of comprehensive literature on the pathophysiology and treatment of Mpox.To address this issue,we conducted a review covering the physiological and pathological processes of Mpox infection,summarizing the latest progress of anti-Mpox drugs.Our analysis encompasses approved drugs currently employed in clinical settings,as well as newly identified small-molecule compounds and antibody drugs displaying potential antiviral efficacy against Mpox.Furthermore,we have gained valuable insights from the process of Mpox drug development,including strategies for repurposing drugs,the discovery of drug targets driven by artificial intelligence,and preclinical drug development.The purpose of this review is to provide readers with a comprehensive overview of the current knowledge on Mpox.
文摘This study uses a literature review to probe the prevalence and trends of induced abortions among unmarried women since the 1980s.Premarital pregnancy has become more and more common,and this has pushed the premarital abortion rate still higher.With the premarital abortion rate remaining markedly high in China,the percentage of women who have experienced premarital abortions has risen stead-ily with the passage of time.Not only has the prevalence of premarital abortions increased in China on the whole,but there is evidence that some young women have had multiple abortions.Premarital abortion is more prevalent in urban areas and among migrants and less-educated women.The huge number of premarital abor-tions not only signifies a palpable,unmet need for contraceptives,but also repre-sents an immense number of unrealized births.In the years to come,it is imperative to strengthen research into premarital abortions,to optimize the approaches to data collection and analysis,and to improve reproductive health services for unmarried women.
文摘In 2020,China’s sex ratio at birth(SRB)stood at 111.3,still exhibiting a notable bias.Son preference ranks as the most essential and fundamental reason for the skewed SRB.This study,using a mixed-methods approach,seeks to address what the temporal changes and regional differences in SRB and the gender preferences are in China,whether and why son preference persists,how people practice such preferences and how they relate to the persistently high SRB in the Chinese con-text.Analysis of data from five national sample surveys finds that son preference is waning and daughter preference is gaining momentum,consistent with significant downward trends in SRB.The study also reveals that value shifts and intergenera-tional relations have a strong influence on gender preferences and their translation into reproductive behavior.Additionally,this study highlights the challenges that are hindering the decline in son preference,suggesting that more efforts are needed to empower women and to change social norms.
文摘The sex ratio at birth(SRB)in China began to rise rapidly in the 1980s and declined after 2009.The ratio has maintained a downward trend since 2009,but is still higher than the normal level.The government of China has committed to redress the distortions in SRB and has initiated multiple actions to accomplish that end.Against a background of economic development,accelerating modernization and the empowerment of women,China has strengthened governance and made significant progress in balancing the sex ratio at birth.This paper examines the trend for SRB in China,summarizes the practices that address gender imbalance at birth,and analyzes the challenges ahead.
