With 7-year-old Korla fragrant pear trees as the experimental material, different root-zone irrigation patterns were arranged to study the effects of soil moisture on twig water potential of Korla fragrant pear trees ...With 7-year-old Korla fragrant pear trees as the experimental material, different root-zone irrigation patterns were arranged to study the effects of soil moisture on twig water potential of Korla fragrant pear trees at different growth stages. The results showed that under the condition of regulated deficit irrigation, the diurnal dynamics of twig water potential of Korla fragrant pear trees was V shaped at different growth stages, and the twig water potential of Korla fragrant pear trees reached the minimum during 14：00-16：00. At different growth stages, the twig water potential of Korla fragrant pear trees under drought stress was significantly lower than that of pear trees irrigated normally. Under both drought stress and normal irrigation, the diurnal variation of twig water potential of Korla fragrant pear trees during the flowering period was most gentle, that during the fruit-setting and mature periods showed some ups and downs, and that during the fruit enlargement period was greater. Under the experimental conditions, the twig water potential of Korla fragrant pear trees was positively correlated with soil moisture content, and the functional relationships between them at different growth stages were studied by regression analysis. In addition, the limits of twig water potential and soil moisture content for normal growth of Korla fragrant pear trees at different growth stages were determined.展开更多
Objective:To explore the main active components,main target genes and key pathways of"mulberry twig-cassia twig"in the treatment of rheumatoid arthritis based on network pharmacology Methods:The active compo...Objective:To explore the main active components,main target genes and key pathways of"mulberry twig-cassia twig"in the treatment of rheumatoid arthritis based on network pharmacology Methods:The active components and targets of drug pairs were screened by TCMSP database and Swisstargetprediction database,and the target genes of rheumatoid arthritis were obtained by GeneCards and OMIM database,and the overlapping genes were obtained,that is,the predictive target genes of"mulberry twig-cassia twig"medicine for the treatment of rheumatoid arthritis.The"drug-active ingredient-target"network and"drug-active ingredient-target-disease"network were constructed by Cytoscape 3.7.2 software.The PPI network was constructed by String platform and the key biological processes were analyzed and screened by Cytoscape 3.7.2 software.The GO analysis and KEGG pathway analysis of predictive target genes were carried out on the Metascape website,and the bubble diagram was drawn by Omicshare platform.At the same time,those genes can used to construct the"drug-component-target-pathway"network by Cytoscape 3.7.2 software.Results:A total of 12 active components,85 predictive targets,126 KEGG pathways and 1537 GO functions were obtained.Conclusion:The main active components of"mulberry twig-cassia twig"in the treatment of rheumatoid arthritis are kaempferol,beta-sitosterol and cinnamic acid,and the main target genes may be HSP90AB1、RELA,AKT1,TNF,TLR4,PTGS2 and so on.The main KEGG pathways are TNF signal pathway,estrogen pathway,HIF-1 signal pathway,NF-κB signal pathway,PI3K-Akt signal pathway and so on.The main GO function analysis is the response to lipopolysaccharide、response to oxidative stress、cytokine-mediated signaling pathway.This study shows that the"mulberry twig-cassia twig"drug pair is through the regulation of multip-compound,multi-target,multi-pathway to treat rheumatoid arthritis,providing a theoretical basis for the follow-up study of traditional Chinese medicine in the treatment of rheumatoid arthritis.展开更多
Tree Match算法是一种有效的Twig查询匹配算法,但其存在反复分析Twig模式的缺点。针对该问题,引入编译中的部分求值技术,提出一种Twig查询优化方案。通过部分求值提前完成对Twig模式的分析,生成查询专用的指令序列代替原查询程序,并给...Tree Match算法是一种有效的Twig查询匹配算法,但其存在反复分析Twig模式的缺点。针对该问题,引入编译中的部分求值技术,提出一种Twig查询优化方案。通过部分求值提前完成对Twig模式的分析,生成查询专用的指令序列代替原查询程序,并给出查询机执行引擎,从而消除重复计算,优化XML树模式查询过程。实验结果表明,在不同Twig模式下,该优化方案能够有效提高XML查询的执行效率。展开更多
Young leaves are conventionally used in the analysis to study the nutrient status of evergreen plants and their responses to environmental changes, but the role of old leaves remains poorly understood. We selected two...Young leaves are conventionally used in the analysis to study the nutrient status of evergreen plants and their responses to environmental changes, but the role of old leaves remains poorly understood. We selected two stand types in 31-year-old Chinese fir（Cunninghamia lanceolata） plantations with similar soil conditions but different stand densities, to test the hypothesis that nitrogen（N） concentration of old leaves and twigs is more sensitive to stand density than that of young ones. Leaves and twigs were sampled and sorted into young（one-year-old） and old（two-and three-year-old） groups. Significant differences in N concentration and carbon： nitrogen ratio between the low-density stand and high-density stand were only found in the old leaves and twigs but not in the young ones.Although the N resorption efficiency did not vary significantly with stand density, the annual N resorption rates were increased in old leaves and relatively young twigs at high stand density. These results show the potential use of old tissues in the nutrient analysis in Chinese fir plantations. Testing the generality of these results could improve the use of foliar analysis as an indicator of nutrient status and environmental changes in evergreen tree species.展开更多
Studies on litterfall and decomposition provide estimations of decomposition rates of different ecosystems.This is key information to understanding ecosystem dynamics and changes in a scenario of global warming.The ob...Studies on litterfall and decomposition provide estimations of decomposition rates of different ecosystems.This is key information to understanding ecosystem dynamics and changes in a scenario of global warming.The objective of this research was to assess litterfall production,the potential deposition of macro and micronutrients through leaf and twig fall as well as macronutrient—use efficiency in three forest ecosystems at different altitudes： a pine forest mixed with deciduous species（S1）; a Quercus spp.forest（S2）; and,a Tamaulipan thornscrub forest（S3）.Total annual litterfall deposition was 594,742 and 533 g m^（-2） for S1,S2 and S3.Leaf litter was higher （68%） than twigs（18%）,reproductive structures（8%） or miscellaneous material（6%）.Micronutrient leaf deposition was higher for Fe followed by Mn,Zn and Cu.Macronutrient leaf deposition was higher for Ca followed by K,Mg and P.Even though P deposition in leaves and twigs was lower than other macronutrients,its nutrient use efficiency was higher than Ca,Mg or K.Altitude and species composition determine litter and nutrient deposition,with higher values at mid-altitudes（550 m）.Altitude is an important factor to consider when analyzing litter production as well as nutrient deposition as shown in this study.Litter production and nutrient deposition are expected to change in a scenario of global warming.展开更多
Objective: To compare the clinical efficacy of Cassia Twig Tuckahoe capsule (Chinese Medicine) and Mifepristone combined with laparoscopic surgery for the treatment of endometriosis. Designs: Prospective cohort study....Objective: To compare the clinical efficacy of Cassia Twig Tuckahoe capsule (Chinese Medicine) and Mifepristone combined with laparoscopic surgery for the treatment of endometriosis. Designs: Prospective cohort study. Setting: Gynecology and Obstetrics Department, Jingzhou Central Hospital, affiliated to Yangtze University. Methods: We selected 67 patients suspected with endometriosis and divided randomly into 2 groups on patient choice. Outcome Measures: Treatment efficacy, side effects, recurrence rate and pregnancy rate. Results: Comparing the effect of treatment between the two groups, the success rate was almost same (P > 0.5). However, the disappearance of pain was faster in Cassia twig Tuckahoe group (P Conclusion: After analysis of the result, Cassia twig Tuckahoe capsule combined with Laparoscopy is superior to the Mifepristone combined with Laparoscopy. Cassia twig Tuckahoe capsule is a very propitious medicine for treating endometriosis for long term benefits.展开更多
文摘With 7-year-old Korla fragrant pear trees as the experimental material, different root-zone irrigation patterns were arranged to study the effects of soil moisture on twig water potential of Korla fragrant pear trees at different growth stages. The results showed that under the condition of regulated deficit irrigation, the diurnal dynamics of twig water potential of Korla fragrant pear trees was V shaped at different growth stages, and the twig water potential of Korla fragrant pear trees reached the minimum during 14：00-16：00. At different growth stages, the twig water potential of Korla fragrant pear trees under drought stress was significantly lower than that of pear trees irrigated normally. Under both drought stress and normal irrigation, the diurnal variation of twig water potential of Korla fragrant pear trees during the flowering period was most gentle, that during the fruit-setting and mature periods showed some ups and downs, and that during the fruit enlargement period was greater. Under the experimental conditions, the twig water potential of Korla fragrant pear trees was positively correlated with soil moisture content, and the functional relationships between them at different growth stages were studied by regression analysis. In addition, the limits of twig water potential and soil moisture content for normal growth of Korla fragrant pear trees at different growth stages were determined.
基金National key research and development program of China(No.2018YFC1705500)。
文摘Objective:To explore the main active components,main target genes and key pathways of"mulberry twig-cassia twig"in the treatment of rheumatoid arthritis based on network pharmacology Methods:The active components and targets of drug pairs were screened by TCMSP database and Swisstargetprediction database,and the target genes of rheumatoid arthritis were obtained by GeneCards and OMIM database,and the overlapping genes were obtained,that is,the predictive target genes of"mulberry twig-cassia twig"medicine for the treatment of rheumatoid arthritis.The"drug-active ingredient-target"network and"drug-active ingredient-target-disease"network were constructed by Cytoscape 3.7.2 software.The PPI network was constructed by String platform and the key biological processes were analyzed and screened by Cytoscape 3.7.2 software.The GO analysis and KEGG pathway analysis of predictive target genes were carried out on the Metascape website,and the bubble diagram was drawn by Omicshare platform.At the same time,those genes can used to construct the"drug-component-target-pathway"network by Cytoscape 3.7.2 software.Results:A total of 12 active components,85 predictive targets,126 KEGG pathways and 1537 GO functions were obtained.Conclusion:The main active components of"mulberry twig-cassia twig"in the treatment of rheumatoid arthritis are kaempferol,beta-sitosterol and cinnamic acid,and the main target genes may be HSP90AB1、RELA,AKT1,TNF,TLR4,PTGS2 and so on.The main KEGG pathways are TNF signal pathway,estrogen pathway,HIF-1 signal pathway,NF-κB signal pathway,PI3K-Akt signal pathway and so on.The main GO function analysis is the response to lipopolysaccharide、response to oxidative stress、cytokine-mediated signaling pathway.This study shows that the"mulberry twig-cassia twig"drug pair is through the regulation of multip-compound,multi-target,multi-pathway to treat rheumatoid arthritis,providing a theoretical basis for the follow-up study of traditional Chinese medicine in the treatment of rheumatoid arthritis.
基金supported by the NSFC Projects of International Cooperation and Exchanges(31210103920)the National Key Research and Development Program(2016YFD0600202)+1 种基金the Gan-Po Distinguished Researcher Programthe Project of Jiangxi Provincial Department of Science and Technology(20144BBB70005)
文摘Young leaves are conventionally used in the analysis to study the nutrient status of evergreen plants and their responses to environmental changes, but the role of old leaves remains poorly understood. We selected two stand types in 31-year-old Chinese fir（Cunninghamia lanceolata） plantations with similar soil conditions but different stand densities, to test the hypothesis that nitrogen（N） concentration of old leaves and twigs is more sensitive to stand density than that of young ones. Leaves and twigs were sampled and sorted into young（one-year-old） and old（two-and three-year-old） groups. Significant differences in N concentration and carbon： nitrogen ratio between the low-density stand and high-density stand were only found in the old leaves and twigs but not in the young ones.Although the N resorption efficiency did not vary significantly with stand density, the annual N resorption rates were increased in old leaves and relatively young twigs at high stand density. These results show the potential use of old tissues in the nutrient analysis in Chinese fir plantations. Testing the generality of these results could improve the use of foliar analysis as an indicator of nutrient status and environmental changes in evergreen tree species.
基金supported by the PAICYT Grant CT259-15National Science and Technological Council(Grant250732)
文摘Studies on litterfall and decomposition provide estimations of decomposition rates of different ecosystems.This is key information to understanding ecosystem dynamics and changes in a scenario of global warming.The objective of this research was to assess litterfall production,the potential deposition of macro and micronutrients through leaf and twig fall as well as macronutrient—use efficiency in three forest ecosystems at different altitudes： a pine forest mixed with deciduous species（S1）; a Quercus spp.forest（S2）; and,a Tamaulipan thornscrub forest（S3）.Total annual litterfall deposition was 594,742 and 533 g m^（-2） for S1,S2 and S3.Leaf litter was higher （68%） than twigs（18%）,reproductive structures（8%） or miscellaneous material（6%）.Micronutrient leaf deposition was higher for Fe followed by Mn,Zn and Cu.Macronutrient leaf deposition was higher for Ca followed by K,Mg and P.Even though P deposition in leaves and twigs was lower than other macronutrients,its nutrient use efficiency was higher than Ca,Mg or K.Altitude and species composition determine litter and nutrient deposition,with higher values at mid-altitudes（550 m）.Altitude is an important factor to consider when analyzing litter production as well as nutrient deposition as shown in this study.Litter production and nutrient deposition are expected to change in a scenario of global warming.
文摘Objective: To compare the clinical efficacy of Cassia Twig Tuckahoe capsule (Chinese Medicine) and Mifepristone combined with laparoscopic surgery for the treatment of endometriosis. Designs: Prospective cohort study. Setting: Gynecology and Obstetrics Department, Jingzhou Central Hospital, affiliated to Yangtze University. Methods: We selected 67 patients suspected with endometriosis and divided randomly into 2 groups on patient choice. Outcome Measures: Treatment efficacy, side effects, recurrence rate and pregnancy rate. Results: Comparing the effect of treatment between the two groups, the success rate was almost same (P > 0.5). However, the disappearance of pain was faster in Cassia twig Tuckahoe group (P Conclusion: After analysis of the result, Cassia twig Tuckahoe capsule combined with Laparoscopy is superior to the Mifepristone combined with Laparoscopy. Cassia twig Tuckahoe capsule is a very propitious medicine for treating endometriosis for long term benefits.
