Background:COVID-19 has had a dramatic impact on human health,economies,societies,and livelihoods around the world.Traditional Chinese medicine(TCM)formulae have played an important role in the prevention and treatmen...Background:COVID-19 has had a dramatic impact on human health,economies,societies,and livelihoods around the world.Traditional Chinese medicine(TCM)formulae have played an important role in the prevention and treatment of COVID-19.WHO evaluated the role of TCM in treating of COVID-19 and encouraged other countries to promote the use of TCM formulae.However,the key is to find the basic core traditional Chinese medicine(BC-TCM)among those formulae.Methods:For the first time,we mined the data of TCM formulae in CNIPA and analyzed herb characteristics and association rules.We then determined the BC-TCM and screened main compounds and therapeutic targets.Finally,the potential molecular mechanisms were explored by using enrichment analyses and molecular docking.Results:This study screened 123 patented TCM formulae,including 312 herbs.According to frequency statistics and association rules,nine herbs(Gan Cao,Jin Yinhua,Guang Huoxiang,Fu Ling,Huang Qi,Jie Geng,Lian Qiao,Cang Zhu,Ku Xingren)were selected as the BC-TCM.The BC-TCM involved 166 main compounds and 48 therapeutic targets.The active compounds Hederagenin,Spinasterol,Beta-sitosterol,and Liquiritin had high binding activity to the COVID-19 targets 3CL,ACE2,and core targets RELA,HSP90AA1,STAT3,MAPK3,and TP53 according to molecular docking results.Interestingly,Hederagenin might be a potential compound for the prevention and treatment of COVID-19.Conclusion:Our research predicted and confirmed the preventive therapeutic effect of BC-TCM on COVID-19.This has the potential to broaden the scope of TCM,guide people in using clinical formulae,and provide valuable insights for future TCM discovery research.展开更多
Objective:Liver cirrhosis is a disease that seriously damages human health.Traditional Chinese Medicine(TCM)formulae have a good therapeutic effect on cirrhosis,and the herb pair is the smallest unit in formula compat...Objective:Liver cirrhosis is a disease that seriously damages human health.Traditional Chinese Medicine(TCM)formulae have a good therapeutic effect on cirrhosis,and the herb pair is the smallest unit in formula compatibility,which is important for improving the therapeutic effect.Therefore,identifying core herb pairs among TCM formulae is key.Methods:We mined the data of TCM formulae for the treatment of cirrhosis in the China National Intellectual Property Administration for the first time and analyzed their herb characteristics and association rules.We screened 405 patented TCM formulae,including 953 herbs.Based on frequency statistics and association rules,we determined“Astragali Radix-Salviae Miltiorrhizae Radix Et Rhizoma”as the core herb pair.Results:Six active compounds,Isorhamnetin,Formononetin,Calycosin,Cryptotanshinone,Dihydrotanshinone I,and Tanshinone II A,were screened out based on previous studies and network pharmacology.We found that SRC,TP53,HSP90AA1,MAPK3,MAPK1,and STAT3 played pivotal roles in treating cirrhosis.Interestingly,molecular docking indicated that MAPK3 might be a potential pharmacological target for cirrhosis.Conclusion:We preliminarily predicted and verified the pharmacological and molecular mechanism of“Astragali Radix-Salviae Miltiorrhizae Radix Et Rhizoma”in treating cirrhosis.This can expand the scope of TCM in the treatment of cirrhosis,guide people to use clinical formulae,and provide valuable insights for further drug discovery studies.展开更多
This article focuses on study of a relation between physical-mineralogical properties of sandstone used in Ptolemaic temples in Upper Egypt and its resistance of deterioration factors affecting it. In the present stud...This article focuses on study of a relation between physical-mineralogical properties of sandstone used in Ptolemaic temples in Upper Egypt and its resistance of deterioration factors affecting it. In the present study, sandstone samples were collected from four sites;namely the temples of Dendera, Esna, Edfu and Kom Ombo which are located in Upper Egypt. Polarized light microscope (PLM), Scanning Electron Microscope (SEM), X-Ray diffraction (XRD) and energy-dispersive X-ray spectroscopy (EDX) were used to determine mineralogical properties, microstructure, and chemical compositions of the deteriorated sandstone samples, addition to physical properties tests;results of the study confirmed that sandstone samples containing a high percentage of salts, clay minerals and iron oxides have been significantly affected by deterioration factors. The deteriorated sandstone samples were treated by paraloid B72 3% enhanced with Nano silica 5% to improve the physical properties of stone. Results of the study indicated that the samples which were consolidated by Nanoparticles based on acrylic Copolymers (Paraloid B72 and its Nanocomposite with Nano silica) achieved the best results for improvement of its physical-mineralogical properties. This is the ultimate aim of the study for the purpose of conservation and sustainability of building materials of the temples.展开更多
Based on the analysis on policy such as property rights, tax and administration fee, harvesting and circulation of forest products in Lin 'an Modei Forest, some policy issues in the development of Lin 'an Mode...Based on the analysis on policy such as property rights, tax and administration fee, harvesting and circulation of forest products in Lin 'an Modei Forest, some policy issues in the development of Lin 'an Model Forest towards sustainable forest management were raised: (1) The level of timber tax and fee is quite high and there are many kinds of taxes and fees such as fees for forest silviculture, forestry maintenance, forest protection, city construction, town-service, additional fee for education and o...展开更多
基金supported by the National Key R&D Program of China(2018YFC1706506 and 2021YFE0200300)the Tianjin Municipal Education Commission Science and Technology Plan Project(2021KJ137).
文摘Background:COVID-19 has had a dramatic impact on human health,economies,societies,and livelihoods around the world.Traditional Chinese medicine(TCM)formulae have played an important role in the prevention and treatment of COVID-19.WHO evaluated the role of TCM in treating of COVID-19 and encouraged other countries to promote the use of TCM formulae.However,the key is to find the basic core traditional Chinese medicine(BC-TCM)among those formulae.Methods:For the first time,we mined the data of TCM formulae in CNIPA and analyzed herb characteristics and association rules.We then determined the BC-TCM and screened main compounds and therapeutic targets.Finally,the potential molecular mechanisms were explored by using enrichment analyses and molecular docking.Results:This study screened 123 patented TCM formulae,including 312 herbs.According to frequency statistics and association rules,nine herbs(Gan Cao,Jin Yinhua,Guang Huoxiang,Fu Ling,Huang Qi,Jie Geng,Lian Qiao,Cang Zhu,Ku Xingren)were selected as the BC-TCM.The BC-TCM involved 166 main compounds and 48 therapeutic targets.The active compounds Hederagenin,Spinasterol,Beta-sitosterol,and Liquiritin had high binding activity to the COVID-19 targets 3CL,ACE2,and core targets RELA,HSP90AA1,STAT3,MAPK3,and TP53 according to molecular docking results.Interestingly,Hederagenin might be a potential compound for the prevention and treatment of COVID-19.Conclusion:Our research predicted and confirmed the preventive therapeutic effect of BC-TCM on COVID-19.This has the potential to broaden the scope of TCM,guide people in using clinical formulae,and provide valuable insights for future TCM discovery research.
基金supported by the National Key R&D Program of China (2018YFC1706506)the National Natural Science Foundation of China Youth Program (81703921)the Tianjin Key Medical Discipline (Specialty)Construction Project。
文摘Objective:Liver cirrhosis is a disease that seriously damages human health.Traditional Chinese Medicine(TCM)formulae have a good therapeutic effect on cirrhosis,and the herb pair is the smallest unit in formula compatibility,which is important for improving the therapeutic effect.Therefore,identifying core herb pairs among TCM formulae is key.Methods:We mined the data of TCM formulae for the treatment of cirrhosis in the China National Intellectual Property Administration for the first time and analyzed their herb characteristics and association rules.We screened 405 patented TCM formulae,including 953 herbs.Based on frequency statistics and association rules,we determined“Astragali Radix-Salviae Miltiorrhizae Radix Et Rhizoma”as the core herb pair.Results:Six active compounds,Isorhamnetin,Formononetin,Calycosin,Cryptotanshinone,Dihydrotanshinone I,and Tanshinone II A,were screened out based on previous studies and network pharmacology.We found that SRC,TP53,HSP90AA1,MAPK3,MAPK1,and STAT3 played pivotal roles in treating cirrhosis.Interestingly,molecular docking indicated that MAPK3 might be a potential pharmacological target for cirrhosis.Conclusion:We preliminarily predicted and verified the pharmacological and molecular mechanism of“Astragali Radix-Salviae Miltiorrhizae Radix Et Rhizoma”in treating cirrhosis.This can expand the scope of TCM in the treatment of cirrhosis,guide people to use clinical formulae,and provide valuable insights for further drug discovery studies.
文摘This article focuses on study of a relation between physical-mineralogical properties of sandstone used in Ptolemaic temples in Upper Egypt and its resistance of deterioration factors affecting it. In the present study, sandstone samples were collected from four sites;namely the temples of Dendera, Esna, Edfu and Kom Ombo which are located in Upper Egypt. Polarized light microscope (PLM), Scanning Electron Microscope (SEM), X-Ray diffraction (XRD) and energy-dispersive X-ray spectroscopy (EDX) were used to determine mineralogical properties, microstructure, and chemical compositions of the deteriorated sandstone samples, addition to physical properties tests;results of the study confirmed that sandstone samples containing a high percentage of salts, clay minerals and iron oxides have been significantly affected by deterioration factors. The deteriorated sandstone samples were treated by paraloid B72 3% enhanced with Nano silica 5% to improve the physical properties of stone. Results of the study indicated that the samples which were consolidated by Nanoparticles based on acrylic Copolymers (Paraloid B72 and its Nanocomposite with Nano silica) achieved the best results for improvement of its physical-mineralogical properties. This is the ultimate aim of the study for the purpose of conservation and sustainability of building materials of the temples.
文摘Based on the analysis on policy such as property rights, tax and administration fee, harvesting and circulation of forest products in Lin 'an Modei Forest, some policy issues in the development of Lin 'an Model Forest towards sustainable forest management were raised: (1) The level of timber tax and fee is quite high and there are many kinds of taxes and fees such as fees for forest silviculture, forestry maintenance, forest protection, city construction, town-service, additional fee for education and o...