Studies on breeding biology enable us to broaden our understanding of the evolution of life history strategies.We studied the breeding biology of the Green-backed Tit(Parus monticolus)to provide comprehensive data on ...Studies on breeding biology enable us to broaden our understanding of the evolution of life history strategies.We studied the breeding biology of the Green-backed Tit(Parus monticolus)to provide comprehensive data on nest and egg characteristics,parental behavior throughout egg laying and nestling periods,and reproductive outcome.Our study reveals adaptive behavioral patterns and reproductive strategies for P.monticolus.展开更多
The life history of birds dictates their activities and is crucial to population success.However,the life history traits of only one-third of the world’s bird species have been described;the rest are poorly understoo...The life history of birds dictates their activities and is crucial to population success.However,the life history traits of only one-third of the world’s bird species have been described;the rest are poorly understood.We studied the breeding ecology of the Yellow-bellied Warbler(Abroscopus superciliaris)and documented reproductive information throughout the egg and nestling periods.The data included natural nest sites,nest components,nest size,egg laying dates and time,egg morph,egg size,clutch size,egg incubation,nestling brooding and feeding,nestling morph and growth,and reproductive outcome.This study provided particular information of breeding ecology that has not been reported before in the Yellow-bellied Warbler.展开更多
Objective:Based on metabonomics technology of high-performance liquid chromatography-mass spectrometry(HPLC-MS/MS)and hydrogen nuclear magnetic resonance spectroscopy(^(1)H NMR),the pharmacokinetic characteristics and...Objective:Based on metabonomics technology of high-performance liquid chromatography-mass spectrometry(HPLC-MS/MS)and hydrogen nuclear magnetic resonance spectroscopy(^(1)H NMR),the pharmacokinetic characteristics and therapeutic mechanism of Rhei Radix et Rhizoma(RhRR,Dahuang in Chinese),Eupolyphaga Steleophaga(EuS,Tubiechong in Chinese)combined with RhRR acting on acute liver injury were explored.Methods:Models of acute liver injury were established,and the pharmacokinetic methods of five components of RhRR-EuS in rats were found by HPLC-MS/MS.The liver tissues of different groups of mice were analyzed by ^(1)H NMR spectroscopy combined with multivariate statistical analysis to investigate the metabolomics of RhRR-EuS and RhRR.Results:Pharmacokinetic results showed there were different levels of bimodal phenomenon in different groups,and the absorption of free anthraquinone in RhRR increased after compatibility with EuS.In addition,the pathological state of acute liver injury in rats can selectively promote the absorption of emodin,chrysophanol,physcion and aloe emodin.Through 15 differential metabolites in the liver tissue of acute liver injury mice,it was revealed that RhRR-EuS and RhRR could protect the liver injury by regulating the metabolism of glutamine and glutamic acid,alanine,aspartic acid and glutamic acid,and phosphoinositide.However,the regulation of RhRR was weaker than that of RhRR-EuS.Conclusion:For the first time,we studied the pharmacokinetics and metabolomics differences of RhRREuS and RhRR in rats and mice with acute liver injury,in order to provide theoretical reference for clinical treatment of liver disease by DHZCP.展开更多
Objective:To establish a metabonomics research technique based on the combination of^(1)H-NMR and multivariate statistical analysis,so as to explore the metabolic regulation mechanism of Aconiti Radix Cocta extract(AR...Objective:To establish a metabonomics research technique based on the combination of^(1)H-NMR and multivariate statistical analysis,so as to explore the metabolic regulation mechanism of Aconiti Radix Cocta extract(ARCE)in rat tissues and serum.Methods:SD rats were randomly divided into blank group,female group and male group.The^(1)H-NMR technique was used to collect the information of rat tissues and serum samples in each group.The principal component analysis(PCA),partial least squares discriminant analysis(PLS-DA)and other methods were used for data pattern recognition,so as to screen out potential differential metabolites and metabolic pathways,and then network analysis and KEGG database were used to analyze the relationship between metabolites,metabolic pathways and diseases.Results:The external features and^(1)H-NMR analysis showed that the sex of rats had no obvious effect on the drug action.A total of 15 potential differential metabolites and six metabolic pathways were screened out through data pattern recognition.Through network analysis and KEGG pathway analysis,three target diseases closely related to differential metabolites were found,and the metabolic pathway related to lung cancer was the central carbon metabolism of cancer.Conclusion:This study shows that Aconiti Radix Cocta(ARC)may regulate the energy metabolism of the body by influencing arginine synthesis,so as to play the roles of anti-inflammation,analgesia,anti-tumor and immune regulation.展开更多
Egg rejection in birds is a specific adaptation toward avian brood parasitism,whereas nest sanitation is a general behavior for cleaning the nest and avoiding predation.However,both behaviors refer to the action of ej...Egg rejection in birds is a specific adaptation toward avian brood parasitism,whereas nest sanitation is a general behavior for cleaning the nest and avoiding predation.However,both behaviors refer to the action of ejecting objects out of the nest,and nest sanitation has been proposed as a preadaptation for egg rejection.Here,we tested the eliciting effect of nest sanitation on egg rejection in the red-whiskered bulbul Pycnonotus jocosus,a potential host species that are sympatric with parasitic cuckoos.We conducted meta-analyses of previous studies on both nest sanitation and egg rejection,in order to evaluate the consistency of our conclusions.Our results showed that nest sanitation did not elicit egg rejection in P.jocosus.The conclusions concerning such an eliciting effect from previous studies were mixed,whereas the methodologies were inconsistent,making the studies unsuitable for comparisons.However,the ejection frequency of nest sanitation was consistently higher than the frequency of egg rejection across different host species or populations.These results suggest that nest sanitation,which is an ancient behavior,is more fundamental than egg rejection,but the effect of the former on the latter is complex and needs further study.Standardized methodologies and the integration of behavior,physiology,and modeling may provide better opportunities to explore the relationship between nest sanitation and egg rejection.展开更多
基金provided by Hainan Provincial Natural Science Foundation of China(320CXTD437 and 2019RC189 to CY)National Natural Science Foundation of China(31672303 to CY)Hainan Provincial Innovative Research Program for Graduates(Hyb2020-48 to PY)。
文摘Studies on breeding biology enable us to broaden our understanding of the evolution of life history strategies.We studied the breeding biology of the Green-backed Tit(Parus monticolus)to provide comprehensive data on nest and egg characteristics,parental behavior throughout egg laying and nestling periods,and reproductive outcome.Our study reveals adaptive behavioral patterns and reproductive strategies for P.monticolus.
基金This work was supported by the National Natural Science Foundation of China(Nos.31672303 to CY).
文摘The life history of birds dictates their activities and is crucial to population success.However,the life history traits of only one-third of the world’s bird species have been described;the rest are poorly understood.We studied the breeding ecology of the Yellow-bellied Warbler(Abroscopus superciliaris)and documented reproductive information throughout the egg and nestling periods.The data included natural nest sites,nest components,nest size,egg laying dates and time,egg morph,egg size,clutch size,egg incubation,nestling brooding and feeding,nestling morph and growth,and reproductive outcome.This study provided particular information of breeding ecology that has not been reported before in the Yellow-bellied Warbler.
基金supported by the Key R&D Plan of Hubei Province for local special support in the field of general health(No.2022BCE066).
文摘Objective:Based on metabonomics technology of high-performance liquid chromatography-mass spectrometry(HPLC-MS/MS)and hydrogen nuclear magnetic resonance spectroscopy(^(1)H NMR),the pharmacokinetic characteristics and therapeutic mechanism of Rhei Radix et Rhizoma(RhRR,Dahuang in Chinese),Eupolyphaga Steleophaga(EuS,Tubiechong in Chinese)combined with RhRR acting on acute liver injury were explored.Methods:Models of acute liver injury were established,and the pharmacokinetic methods of five components of RhRR-EuS in rats were found by HPLC-MS/MS.The liver tissues of different groups of mice were analyzed by ^(1)H NMR spectroscopy combined with multivariate statistical analysis to investigate the metabolomics of RhRR-EuS and RhRR.Results:Pharmacokinetic results showed there were different levels of bimodal phenomenon in different groups,and the absorption of free anthraquinone in RhRR increased after compatibility with EuS.In addition,the pathological state of acute liver injury in rats can selectively promote the absorption of emodin,chrysophanol,physcion and aloe emodin.Through 15 differential metabolites in the liver tissue of acute liver injury mice,it was revealed that RhRR-EuS and RhRR could protect the liver injury by regulating the metabolism of glutamine and glutamic acid,alanine,aspartic acid and glutamic acid,and phosphoinositide.However,the regulation of RhRR was weaker than that of RhRR-EuS.Conclusion:For the first time,we studied the pharmacokinetics and metabolomics differences of RhRREuS and RhRR in rats and mice with acute liver injury,in order to provide theoretical reference for clinical treatment of liver disease by DHZCP.
基金supported by Key Project of Hubei Food and Drug Administration(20180103)Traditional Chinese Medicine Superficial Project of Hubei Provincial Health Committee(ZY2019M029)Natural Science Foundation of Xianning City(2020ZRKX05)。
文摘Objective:To establish a metabonomics research technique based on the combination of^(1)H-NMR and multivariate statistical analysis,so as to explore the metabolic regulation mechanism of Aconiti Radix Cocta extract(ARCE)in rat tissues and serum.Methods:SD rats were randomly divided into blank group,female group and male group.The^(1)H-NMR technique was used to collect the information of rat tissues and serum samples in each group.The principal component analysis(PCA),partial least squares discriminant analysis(PLS-DA)and other methods were used for data pattern recognition,so as to screen out potential differential metabolites and metabolic pathways,and then network analysis and KEGG database were used to analyze the relationship between metabolites,metabolic pathways and diseases.Results:The external features and^(1)H-NMR analysis showed that the sex of rats had no obvious effect on the drug action.A total of 15 potential differential metabolites and six metabolic pathways were screened out through data pattern recognition.Through network analysis and KEGG pathway analysis,three target diseases closely related to differential metabolites were found,and the metabolic pathway related to lung cancer was the central carbon metabolism of cancer.Conclusion:This study shows that Aconiti Radix Cocta(ARC)may regulate the energy metabolism of the body by influencing arginine synthesis,so as to play the roles of anti-inflammation,analgesia,anti-tumor and immune regulation.
基金This work was funded by the Hainan Provincial Natural Science Foundation of China(320CXTD437 and 2019RC189 to C.Y.)the National Science Foundation of China(No.31672303 to C.Y.).
文摘Egg rejection in birds is a specific adaptation toward avian brood parasitism,whereas nest sanitation is a general behavior for cleaning the nest and avoiding predation.However,both behaviors refer to the action of ejecting objects out of the nest,and nest sanitation has been proposed as a preadaptation for egg rejection.Here,we tested the eliciting effect of nest sanitation on egg rejection in the red-whiskered bulbul Pycnonotus jocosus,a potential host species that are sympatric with parasitic cuckoos.We conducted meta-analyses of previous studies on both nest sanitation and egg rejection,in order to evaluate the consistency of our conclusions.Our results showed that nest sanitation did not elicit egg rejection in P.jocosus.The conclusions concerning such an eliciting effect from previous studies were mixed,whereas the methodologies were inconsistent,making the studies unsuitable for comparisons.However,the ejection frequency of nest sanitation was consistently higher than the frequency of egg rejection across different host species or populations.These results suggest that nest sanitation,which is an ancient behavior,is more fundamental than egg rejection,but the effect of the former on the latter is complex and needs further study.Standardized methodologies and the integration of behavior,physiology,and modeling may provide better opportunities to explore the relationship between nest sanitation and egg rejection.
