Alzheimer’s disease (AD) is the most common neurodegenerative disease causing an alteration of life quality in the terminal stage. The purpose was to report 14 years of experience about the early impact on the qualit...Alzheimer’s disease (AD) is the most common neurodegenerative disease causing an alteration of life quality in the terminal stage. The purpose was to report 14 years of experience about the early impact on the quality of life of patients with AD. Methodology: Descriptive retrospective study over 14 years in the geriatric department of Pitié Salpêtrière Hospital, using the activity of daily living, Instrumental activity of daily living, neuropsychological inventory and Hoen Yahr scale evaluated at the time of diagnosis of AD according to the National Institute of Neurological and Communicative Disorders and Stroke-Alzheimer Disease’s and Related Disorders Association diagnostic criteria. Results: A total of 214 exploitable files had been listed. At the moment of diagnosis, the mean age was 82.1 years with extremes 68 to 95 with sex ratio 1.6 in women’s favor. The mean socio-cultural level was 4.9 with extremes about 0 to 7. There was poly pathology with a mean Cumulative Illness Rate Scale = 4.6 with extremes 0 to 16. the mean cognitive status was moderate = 22.5 with extremes 0 to 30. Quality life showed moderate impairment of IADL = 9.2 with extreme 3 to 11 compared to activity of daily living. The activity of daily living was more affected in 68 - 80-year-olds, while poly pathology impacted more on IADL in men. The cognitive impairment was more deficient in IADL when the MMSE test was low. The common disorders at the NPI were psychological, behavioral and psychotic. Conclusion: At the early diagnosis of Alzheimer’s Disease cognitive deficiencies were predominant and influenced on global Instrumental activity and psychological, behavioral disorders.展开更多
The mature seed of Paris polyphylla var.chinensis(PPC)is morphophysiologically dormant and develops differently under warm and cold temperatures.To elucidate the molecular mechanisms underlying temperature-dependent r...The mature seed of Paris polyphylla var.chinensis(PPC)is morphophysiologically dormant and develops differently under warm and cold temperatures.To elucidate the molecular mechanisms underlying temperature-dependent regulation of PPC seed dormancy and germination,we investigated the dynamic changes in PPC seed transcript levels under warm and cold temperature stratifications(WS and CS,respectively)by time-resolved RNA sequencing,focusing on genes related to hormone metabolism and signaling and cell wall remodeling(CWRM)and encoding transcription factors/regulators(TFs/TRs).A total of 48765 and 47836 differentially expressed genes(DEGs)were associated with WS and CS,respectively.Of these,17581 and 16652 DEGs,respectively,unique to WS and CS,and 5386 were common to both temperature stratifications across nine analyzed growth stages.The expression of hormone metabolism and signaling,TF/TR,and CWRM genes were closely associated with temperature.More genes related to gibberellin(GA),cytokinin,auxin,and brassinosteroid biosynthetic were upregulated in WS as compared to CS seeds,while genes related to dormancy release and germination were downregulated in WS seeds.However,only GA and abscisic acid levels were altered in PPC seeds breaking morphophysiological dormancy(MPD).Overall,37 TF and five TR families were upregulated whereas 24 TF and 16 TR families were downregulated in WS as compared to CS seeds.Most CWRM families were highly expressed under WS as compared to CS,suggesting that they promote endosperm weakening and embryo growth of WS seeds and facilitate MPD release and germination.A coexpression analysis revealed positive correlations between TFs/TRs and DEGs involved in hormone metabolism and signaling and CWRM.These results provided a basis for investigating the interaction between the endosperm and underdeveloped embryo in the regulation of PPC seed germination and seedling emergence.展开更多
Background:The genera Paris,Trillium,Aspidistra,and Polygonatum originally belonged to the family Liliaceae;however,recently,in the APG system,the genera Polygonatum and Aspidistra were placed in the family Asparagace...Background:The genera Paris,Trillium,Aspidistra,and Polygonatum originally belonged to the family Liliaceae;however,recently,in the APG system,the genera Polygonatum and Aspidistra were placed in the family Asparagaceae and the genera Paris and Trillium were placed in the family Melanthiaceae.Methods:To study the application of polysaccharide chemotaxonomy in Asparagaceae and Melanthiaceae,we extracted polysaccharides from the rhizomes of plants,including Paris polyphylla var.yunnanensis,Paris daliensis,Paris polyphylla var.chinensis,Trillium tschonoskii,Aspidistra elatior,Aspidistra sichuanensis,Aspidistra caespitosa,Polygonatum sibiricum,Polygonatum cyrtonema,and Polygonatum kingianum.Physicochemical and structural characterization of these polysaccharides was performed using molecular weight,monosaccharide composition,Fourier-transform infrared spectroscopy,nuclear magnetic resonance spectroscopy,and scanning electron microscopy.The immunomodulatory activities were evaluated using the macrophage cell line,RAW264.7.Results:In this study,we found that the polysaccharides from the genus Polygonatum and Aspidistra were mainly comprised of fructose and glucose;the molecular weights were mostly concentrated between 4.6-6.2 kDa.The polysaccharides from species of genus Polygonatum differed in that they contained acetyl groups,while polysaccharides from species of genus Aspidistra did not.Paris and Trillium species polysaccharides mainly consisted of glucose and mannose;the molecular weights of the two major peaks were 6.3-13 kDa and 1-1.5 kDa,respectively;the main differences between polysaccharides were the ratio of glucose and mannose and the degree of branching.These results suggest that fructans might be the main feature of the family Asparagaceae and fructans with acetyl groups might be the main feature of the genus Polygonatum which is consistent with the results of previous studies.Additionally,all polysaccharides from the 10 plants promoted phagocytic activity.Some of them exhibited strong activity,including nitrogen monoxide release and TNF-αsecretion by RAW264.7 macrophages,indicating that they could be used as potential immunomodulatory agents.Conclusion:The molecular weight distribution,monosaccharide composition,and surface morphology of the polysaccharides of the Polygonatum and Aspidistra plants were similar,while those of Paris and Trillium plants were similar.These results support the APG classification system,which placed the genera Polygonatum and Aspidistra in the Asparagaceae family and placed the genera Paris and Trillium in the Melanthiaceae family.展开更多
Texworld Paris celebrates 25 years!The anniversary edition of Texworld Evolution Paris will take place this summer from 3 to 5 July 2023 at the Porte de Versailles Exhibition Centre.For the first time,this event...Texworld Paris celebrates 25 years!The anniversary edition of Texworld Evolution Paris will take place this summer from 3 to 5 July 2023 at the Porte de Versailles Exhibition Centre.For the first time,this event will be held downtown Paris.1,300 exhibitors from some twenty countries have already confirmed their presence.展开更多
A novel phenylpropanoid glycosides 1, named parispolyside E and a novel derivation of phenolic glycoside 2, named parispolyside G, as well as two known flavonoid glycosides were isolated from the rhizome of Paris poly...A novel phenylpropanoid glycosides 1, named parispolyside E and a novel derivation of phenolic glycoside 2, named parispolyside G, as well as two known flavonoid glycosides were isolated from the rhizome of Paris polyphylla var. yunnanensis. Their structures were elucidaed by spectroscopic methods.展开更多
Phytochemical investigation of the rhizomes of Paris polyphylla var.stenophylla led to the isolation of two new highly oxygenated spirostanol saponins,named paristenosides A(1)and B(2),together with seven known compou...Phytochemical investigation of the rhizomes of Paris polyphylla var.stenophylla led to the isolation of two new highly oxygenated spirostanol saponins,named paristenosides A(1)and B(2),together with seven known compounds.Their structures were established mainly on the base of NMR spectroscopic techniques and mass spectrometry,as well as chemical methods.In addition,the cytotoxicity of the two new saponins was tested.Graphical Abstract Two new highly oxygenated spirostanol saponins,paristenosides A(1)and B(2),were isolated from the rhizomes of Paris polyphylla var.stenophylla.Their structures were established mainly based on NMR spectroscopic techniques and mass spectrometry,as well as chemical methods.展开更多
The Paris Climate Change Conference was successfully concluded with the Paris Agreement, which is a milestone for the world in collectively combating climate change. By participating in IPCC assessments and conducting...The Paris Climate Change Conference was successfully concluded with the Paris Agreement, which is a milestone for the world in collectively combating climate change. By participating in IPCC assessments and conducting national climate change assessments, China has been increasing its understanding of the issue. For the first time, China's top leader attended the Conference of the Parties, which indicates the acknowledgement of the rationality and necessity of climate change response by China at different levels. Moreover, this participation reflects China's commitment to including climate change in its ecology improvement program and pursuing a low-carbon society and economy. In order to ensure the success of the Paris Conference, China has contributed significantly. China's constructive participation in global governance shows that China is a responsible power. These principles such as the creation of a future of winewin cooperation with each country contributing to the best of its ability; a future of the rule of law, fairness, and justice; and a future of inclusiveness, mutual learning, and common development will serve as China's guidelines in its efforts to facilitate the implementation of the Paris Agreement and participate in the design of international systems.展开更多
文摘Alzheimer’s disease (AD) is the most common neurodegenerative disease causing an alteration of life quality in the terminal stage. The purpose was to report 14 years of experience about the early impact on the quality of life of patients with AD. Methodology: Descriptive retrospective study over 14 years in the geriatric department of Pitié Salpêtrière Hospital, using the activity of daily living, Instrumental activity of daily living, neuropsychological inventory and Hoen Yahr scale evaluated at the time of diagnosis of AD according to the National Institute of Neurological and Communicative Disorders and Stroke-Alzheimer Disease’s and Related Disorders Association diagnostic criteria. Results: A total of 214 exploitable files had been listed. At the moment of diagnosis, the mean age was 82.1 years with extremes 68 to 95 with sex ratio 1.6 in women’s favor. The mean socio-cultural level was 4.9 with extremes about 0 to 7. There was poly pathology with a mean Cumulative Illness Rate Scale = 4.6 with extremes 0 to 16. the mean cognitive status was moderate = 22.5 with extremes 0 to 30. Quality life showed moderate impairment of IADL = 9.2 with extreme 3 to 11 compared to activity of daily living. The activity of daily living was more affected in 68 - 80-year-olds, while poly pathology impacted more on IADL in men. The cognitive impairment was more deficient in IADL when the MMSE test was low. The common disorders at the NPI were psychological, behavioral and psychotic. Conclusion: At the early diagnosis of Alzheimer’s Disease cognitive deficiencies were predominant and influenced on global Instrumental activity and psychological, behavioral disorders.
基金supported by the CAMS Innovation Fund for Medical Sciences (CIFMS) (2017-I2M-3-013)the National Key Research and Development Program of China (Grant No. 2017YFC1700706)the National Natural Science Foundation of China (Grant No. 31471575).
文摘The mature seed of Paris polyphylla var.chinensis(PPC)is morphophysiologically dormant and develops differently under warm and cold temperatures.To elucidate the molecular mechanisms underlying temperature-dependent regulation of PPC seed dormancy and germination,we investigated the dynamic changes in PPC seed transcript levels under warm and cold temperature stratifications(WS and CS,respectively)by time-resolved RNA sequencing,focusing on genes related to hormone metabolism and signaling and cell wall remodeling(CWRM)and encoding transcription factors/regulators(TFs/TRs).A total of 48765 and 47836 differentially expressed genes(DEGs)were associated with WS and CS,respectively.Of these,17581 and 16652 DEGs,respectively,unique to WS and CS,and 5386 were common to both temperature stratifications across nine analyzed growth stages.The expression of hormone metabolism and signaling,TF/TR,and CWRM genes were closely associated with temperature.More genes related to gibberellin(GA),cytokinin,auxin,and brassinosteroid biosynthetic were upregulated in WS as compared to CS seeds,while genes related to dormancy release and germination were downregulated in WS seeds.However,only GA and abscisic acid levels were altered in PPC seeds breaking morphophysiological dormancy(MPD).Overall,37 TF and five TR families were upregulated whereas 24 TF and 16 TR families were downregulated in WS as compared to CS seeds.Most CWRM families were highly expressed under WS as compared to CS,suggesting that they promote endosperm weakening and embryo growth of WS seeds and facilitate MPD release and germination.A coexpression analysis revealed positive correlations between TFs/TRs and DEGs involved in hormone metabolism and signaling and CWRM.These results provided a basis for investigating the interaction between the endosperm and underdeveloped embryo in the regulation of PPC seed germination and seedling emergence.
基金National Natural Science Foundation of China(No.81373904 and No.81673535)National Key Research and Development Project(2019YFC1710604)Tianjin Science and Technology Plan Project(19YFZCSY00170).
文摘Background:The genera Paris,Trillium,Aspidistra,and Polygonatum originally belonged to the family Liliaceae;however,recently,in the APG system,the genera Polygonatum and Aspidistra were placed in the family Asparagaceae and the genera Paris and Trillium were placed in the family Melanthiaceae.Methods:To study the application of polysaccharide chemotaxonomy in Asparagaceae and Melanthiaceae,we extracted polysaccharides from the rhizomes of plants,including Paris polyphylla var.yunnanensis,Paris daliensis,Paris polyphylla var.chinensis,Trillium tschonoskii,Aspidistra elatior,Aspidistra sichuanensis,Aspidistra caespitosa,Polygonatum sibiricum,Polygonatum cyrtonema,and Polygonatum kingianum.Physicochemical and structural characterization of these polysaccharides was performed using molecular weight,monosaccharide composition,Fourier-transform infrared spectroscopy,nuclear magnetic resonance spectroscopy,and scanning electron microscopy.The immunomodulatory activities were evaluated using the macrophage cell line,RAW264.7.Results:In this study,we found that the polysaccharides from the genus Polygonatum and Aspidistra were mainly comprised of fructose and glucose;the molecular weights were mostly concentrated between 4.6-6.2 kDa.The polysaccharides from species of genus Polygonatum differed in that they contained acetyl groups,while polysaccharides from species of genus Aspidistra did not.Paris and Trillium species polysaccharides mainly consisted of glucose and mannose;the molecular weights of the two major peaks were 6.3-13 kDa and 1-1.5 kDa,respectively;the main differences between polysaccharides were the ratio of glucose and mannose and the degree of branching.These results suggest that fructans might be the main feature of the family Asparagaceae and fructans with acetyl groups might be the main feature of the genus Polygonatum which is consistent with the results of previous studies.Additionally,all polysaccharides from the 10 plants promoted phagocytic activity.Some of them exhibited strong activity,including nitrogen monoxide release and TNF-αsecretion by RAW264.7 macrophages,indicating that they could be used as potential immunomodulatory agents.Conclusion:The molecular weight distribution,monosaccharide composition,and surface morphology of the polysaccharides of the Polygonatum and Aspidistra plants were similar,while those of Paris and Trillium plants were similar.These results support the APG classification system,which placed the genera Polygonatum and Aspidistra in the Asparagaceae family and placed the genera Paris and Trillium in the Melanthiaceae family.
文摘Texworld Paris celebrates 25 years!The anniversary edition of Texworld Evolution Paris will take place this summer from 3 to 5 July 2023 at the Porte de Versailles Exhibition Centre.For the first time,this event will be held downtown Paris.1,300 exhibitors from some twenty countries have already confirmed their presence.
文摘A novel phenylpropanoid glycosides 1, named parispolyside E and a novel derivation of phenolic glycoside 2, named parispolyside G, as well as two known flavonoid glycosides were isolated from the rhizome of Paris polyphylla var. yunnanensis. Their structures were elucidaed by spectroscopic methods.
基金This work is funded by the National Natural Science Funding of China(Grand No.31570363)the Key Research Program of the Chinese Academy of Sciences(Grand No.KSZDEW-Z-004-03-4)the Natural Science Foundation of Yunnan Province(Grand No.2015FA031).
文摘Phytochemical investigation of the rhizomes of Paris polyphylla var.stenophylla led to the isolation of two new highly oxygenated spirostanol saponins,named paristenosides A(1)and B(2),together with seven known compounds.Their structures were established mainly on the base of NMR spectroscopic techniques and mass spectrometry,as well as chemical methods.In addition,the cytotoxicity of the two new saponins was tested.Graphical Abstract Two new highly oxygenated spirostanol saponins,paristenosides A(1)and B(2),were isolated from the rhizomes of Paris polyphylla var.stenophylla.Their structures were established mainly based on NMR spectroscopic techniques and mass spectrometry,as well as chemical methods.
文摘The Paris Climate Change Conference was successfully concluded with the Paris Agreement, which is a milestone for the world in collectively combating climate change. By participating in IPCC assessments and conducting national climate change assessments, China has been increasing its understanding of the issue. For the first time, China's top leader attended the Conference of the Parties, which indicates the acknowledgement of the rationality and necessity of climate change response by China at different levels. Moreover, this participation reflects China's commitment to including climate change in its ecology improvement program and pursuing a low-carbon society and economy. In order to ensure the success of the Paris Conference, China has contributed significantly. China's constructive participation in global governance shows that China is a responsible power. These principles such as the creation of a future of winewin cooperation with each country contributing to the best of its ability; a future of the rule of law, fairness, and justice; and a future of inclusiveness, mutual learning, and common development will serve as China's guidelines in its efforts to facilitate the implementation of the Paris Agreement and participate in the design of international systems.
