Two wetland maps for the entire China have been produced based on Landsat data acquired around 1990 and 2000. Wetlands in China have been divided into 3 broad categories with 15 sub-categories except rice fields. In 1...Two wetland maps for the entire China have been produced based on Landsat data acquired around 1990 and 2000. Wetlands in China have been divided into 3 broad categories with 15 sub-categories except rice fields. In 1990, the total wetland area in China was 355208 km2 whereas in 2000 it dropped to 304849 km2 with a net loss of 50360 km2. During an approximate 10-year period, inland wetland reduced from 318326 to 257922 km2, coastal wetland dropped from 14335 to 12015 km2, while artificial wetland increased from 22546 to 34911 km2. The greatest natural wetland loss occurred in Heilongjiang, Inner Mon- golia, and Jilin with a total loss of over 57000 km2 of wetland. In western China, over 13000 km2 of wetlands were newly formed in Xinjiang, Tibet, and Qinghai. About 12000 km2 of artificial wetlands were also added for fish farm and reservoir constructions. The newly formed wetlands in western China were caused primarily by climate warming over that region whereas the newly created artificial wetlands were caused by economic developments. China’s wetland loss is caused mainly by human activities.展开更多
Foot-and-mouth disease virus(FMDV) is the causative agent of a highly contagious disease in livestock. The viral proteinaseL^(rop) of FMDV is involved in pathogenicity, and mutation of theL^(rop) SAP domain reduces FM...Foot-and-mouth disease virus(FMDV) is the causative agent of a highly contagious disease in livestock. The viral proteinaseL^(rop) of FMDV is involved in pathogenicity, and mutation of theL^(rop) SAP domain reduces FMDV pathogenicity in pigs. To determine the gene expression profiles associated with decreased pathogenicity in porcine cells, we performed transcriptome analysis using next-generation sequencing technology and compared differentially expressed genes in SK6 cells infected with FMDV containingL^(rop) with either a wild-type or mutated version of the SAP domain. This analysis yielded 1,853 genes that exhibited a ≥ 2-fold change in expression and was validated by real-time quantitative PCR detection of several differentially expressed genes. Many of the differentially expressed genes correlated with antiviral responses corresponded to genes associated with transcription factors, immune regulation, cytokine production, inflammatory response, and apoptosis. Alterations in gene expression profiles may be responsible for the variations in pathogenicity observed between the two FMDV variants. Our results provided genes of interest for the further study of antiviral pathways and pathogenic mechanisms related to FMDV L^(rop).展开更多
Background:Hypertension is one of the most common comorbid conditions of epilepsy.Hypertension and epilepsy may be related to each other.Qigong Bigu practice induces a similar effect as fasting in the first week.As ke...Background:Hypertension is one of the most common comorbid conditions of epilepsy.Hypertension and epilepsy may be related to each other.Qigong Bigu practice induces a similar effect as fasting in the first week.As ketogenesis is induced during ketogenic diet therapy,we hypothesize that ketogenesis is detectable and related body weight loss would occur during the first week of Qigong Bigu practice.Methods:During the prospective observational study,34 healthy adult participants attended the Qigong Bigu practice for one week.The blood pressure,body weight,calorie consumption,blood glucose and beta-hydroxy butyrate level were measured.Results:The body weight and body mass index decreased by 2.39±1.34 kg(95%CI1.92-2.85)and 0.94±0.57(95%CI 0.73-1.15),respectively,after five days of practice(P<0.001).The systolic and diastolic blood pressure decreased by 17.86±14.17 mmHg(95%Ci 12.36-23.35)and 9.75±7.45 mmHg(95%CI 6.86-12.64),respectively(P<0.001).The average five-day calorie consumption was 1197.47±569.97 kcal(95%CI 998.60-1396.35).Meanwhile,no symptomatic hypoglycemia or other significant side effects were observed.The blood beta-hydroxy butyrate level increased to a nutritional level of 1.15±1.12 mmol/L(95%CI 0.76-1.62).The calorie consumption negatively correlated to the beta-hydroxy butyrate level in the blood.The loss of body weight and the decrease of body mass index were positively correlated to the blood beta-hydroxy butyrate level.Conclusions:Qigong Bigu can decrease the blood pressure,the body weight and the body mass index in healthy adult participants.The fasting stage of Qigong Bigu is accompanied by ketogenesis.Clinical trial of Qigong Bigu in hypertension and epilepsy patients might be worthwhile.The blood beta-hydroxy butyrate might be used as a biomarker to evaluate the effect of Qigong Bigu practice during fasting.展开更多
Background:Hypertension is one of the most common comorbid conditions of epilepsy.Hypertension and epilepsy may be related to each other.Qigong Bigu practice induces a similar effect as fasting in the first week.As ke...Background:Hypertension is one of the most common comorbid conditions of epilepsy.Hypertension and epilepsy may be related to each other.Qigong Bigu practice induces a similar effect as fasting in the first week.As ketogenesis is induced during ketogenic diet therapy,we hypothesize that ketogenesis is detectable and related body weight loss would occur during the first week of Qigong Bigu practice.Methods:During the prospective observational study,34 healthy adult participants attended the Qigong Bigu practice for one week.The blood pressure,body weight,calorie consumption,blood glucose and beta-hydroxybutyrate level were measured.Results:The body weight and body mass index decreased by 2.39±1.34 kg(95%CI 1.92–2.85)and 0.94±0.57(95%CI 0.73–1.15),respectively,after five days of practice(P<0.001).The systolic and diastolic blood pressure decreased by 17.86±14.17 mmHg(95%CI 12.36–23.35)and 9.75±7.45 mmHg(95%CI 6.86–12.64),respectively(P<0.001).The average five-day calorie consumption was 1197.47±569.97 kcal(95%CI 998.60–1396.35).Meanwhile,no symptomatic hypoglycemia or other significant side effects were observed.The blood beta-hydroxybutyrate level increased to a nutritional level of 1.15±1.12 mmol/L(95%CI 0.76–1.62).The calorie consumption negatively correlated to the beta-hydroxybutyrate level in the blood.The loss of body weight and the decrease of body mass index were positively correlated to the blood beta-hydroxybutyrate level.Conclusions:Qigong Bigu can decrease the blood pressure,the body weight and the body mass index in healthy adult participants.The fasting stage of Qigong Bigu is accompanied by ketogenesis.Clinical trial of Qigong Bigu in hypertension and epilepsy patients might be worthwhile.The blood beta-hydroxybutyrate might be used as a biomarker to evaluate the effect of Qigong Bigu practice during fasting.展开更多
Foot-and-mouth disease(FMD)is one of the most important transboundary animal diseases caused by foot-andmouth disease virus(FMDV),leading to significant economic losses worldwide.Thefirst report of PanAsia lineage of FM...Foot-and-mouth disease(FMD)is one of the most important transboundary animal diseases caused by foot-andmouth disease virus(FMDV),leading to significant economic losses worldwide.Thefirst report of PanAsia lineage of FMDV in China was in 1999.Since 2011,18 outbreaks attributed to PanAsia lineage viruses have been reported across 7 provinces or municipality in China.Phylogenetic analysis indicated that these PanAsia strains were clustered into three distinct clades(clade 1,clade 2,and clade 3),with nucleotide homology ranging from 91.4%to 100%.The outbreaks of FMD caused by clade 1 strains occurred around 1999 when this lineage was prevalent globally.Clade 2 strains dominated from 2011 to 2013,while clade 3 strains were prevalent during 2018–2019,sharing only 93%homology with clade 2 strains and 91%with clade 1 strains.Tracing analysis showed that these outbreaks represented 3 distinct introductions of PanAsia viruses into China.Virus neutralization tests(VNT)have demonstrated that current commercial vaccines are effective to protect susceptible animals against these strains(r1>0.3).However,the growing demand for livestock has promoted animal movement and encouraged the exchange of products,services,and materials between countries,thereby heightening the risk of exotic strain incursions.Therefore,it is imperative to reinforce border controls and limit animal movements among various Asian countries continually to reduce the risk of new transboundary diseases,such as FMD incursion.Additionally,PanAsia-2 strains need to be taken seriously to prevent its incursions,and the relevant vaccines against PanAsia-2 strains need to be stockpiled in preparation for any possible incursion.展开更多
基金supported by a major research grant from National Natural Science Foundation of China (Grant No. 30590370)National Science and Technology Support Program (Grant No. 2006BAJ10B02)
文摘Two wetland maps for the entire China have been produced based on Landsat data acquired around 1990 and 2000. Wetlands in China have been divided into 3 broad categories with 15 sub-categories except rice fields. In 1990, the total wetland area in China was 355208 km2 whereas in 2000 it dropped to 304849 km2 with a net loss of 50360 km2. During an approximate 10-year period, inland wetland reduced from 318326 to 257922 km2, coastal wetland dropped from 14335 to 12015 km2, while artificial wetland increased from 22546 to 34911 km2. The greatest natural wetland loss occurred in Heilongjiang, Inner Mon- golia, and Jilin with a total loss of over 57000 km2 of wetland. In western China, over 13000 km2 of wetlands were newly formed in Xinjiang, Tibet, and Qinghai. About 12000 km2 of artificial wetlands were also added for fish farm and reservoir constructions. The newly formed wetlands in western China were caused primarily by climate warming over that region whereas the newly created artificial wetlands were caused by economic developments. China’s wetland loss is caused mainly by human activities.
基金supported by grants from the National Science and Technology Ministry (2015BAD12B04)National Natural Sciences Foundation of China (No.31302118,31502042 and 31402179)+2 种基金the Gansu Science Foundation for Distinguished Young Scholars (no.145RJDA328)the International Atomic Energy Agency (16025/R0)the Key technologies R&Dprogram of Gansu Province (1302NKDA027)
文摘Foot-and-mouth disease virus(FMDV) is the causative agent of a highly contagious disease in livestock. The viral proteinaseL^(rop) of FMDV is involved in pathogenicity, and mutation of theL^(rop) SAP domain reduces FMDV pathogenicity in pigs. To determine the gene expression profiles associated with decreased pathogenicity in porcine cells, we performed transcriptome analysis using next-generation sequencing technology and compared differentially expressed genes in SK6 cells infected with FMDV containingL^(rop) with either a wild-type or mutated version of the SAP domain. This analysis yielded 1,853 genes that exhibited a ≥ 2-fold change in expression and was validated by real-time quantitative PCR detection of several differentially expressed genes. Many of the differentially expressed genes correlated with antiviral responses corresponded to genes associated with transcription factors, immune regulation, cytokine production, inflammatory response, and apoptosis. Alterations in gene expression profiles may be responsible for the variations in pathogenicity observed between the two FMDV variants. Our results provided genes of interest for the further study of antiviral pathways and pathogenic mechanisms related to FMDV L^(rop).
基金This work was supported by Sanming Project of Medicine in Shenzhen(SZSM201812005)Shenzhen Key Medical Discipline Construction Fund(No.SZXK033)Shenzhen Fund for Guangdong Provincial High Level Clinical Key Specialties(No.SZGSP012).
文摘Background:Hypertension is one of the most common comorbid conditions of epilepsy.Hypertension and epilepsy may be related to each other.Qigong Bigu practice induces a similar effect as fasting in the first week.As ketogenesis is induced during ketogenic diet therapy,we hypothesize that ketogenesis is detectable and related body weight loss would occur during the first week of Qigong Bigu practice.Methods:During the prospective observational study,34 healthy adult participants attended the Qigong Bigu practice for one week.The blood pressure,body weight,calorie consumption,blood glucose and beta-hydroxy butyrate level were measured.Results:The body weight and body mass index decreased by 2.39±1.34 kg(95%CI1.92-2.85)and 0.94±0.57(95%CI 0.73-1.15),respectively,after five days of practice(P<0.001).The systolic and diastolic blood pressure decreased by 17.86±14.17 mmHg(95%Ci 12.36-23.35)and 9.75±7.45 mmHg(95%CI 6.86-12.64),respectively(P<0.001).The average five-day calorie consumption was 1197.47±569.97 kcal(95%CI 998.60-1396.35).Meanwhile,no symptomatic hypoglycemia or other significant side effects were observed.The blood beta-hydroxy butyrate level increased to a nutritional level of 1.15±1.12 mmol/L(95%CI 0.76-1.62).The calorie consumption negatively correlated to the beta-hydroxy butyrate level in the blood.The loss of body weight and the decrease of body mass index were positively correlated to the blood beta-hydroxy butyrate level.Conclusions:Qigong Bigu can decrease the blood pressure,the body weight and the body mass index in healthy adult participants.The fasting stage of Qigong Bigu is accompanied by ketogenesis.Clinical trial of Qigong Bigu in hypertension and epilepsy patients might be worthwhile.The blood beta-hydroxy butyrate might be used as a biomarker to evaluate the effect of Qigong Bigu practice during fasting.
基金supported by Sanming Project of Medicine in Shenzhen(SZSM201812005)Shenzhen Key Medical Discipline Construction Fund(No.SZXK033)Shenzhen Fund for Guangdong Provincial High Level Clinical Key Specialties(No.SZGSP012).
文摘Background:Hypertension is one of the most common comorbid conditions of epilepsy.Hypertension and epilepsy may be related to each other.Qigong Bigu practice induces a similar effect as fasting in the first week.As ketogenesis is induced during ketogenic diet therapy,we hypothesize that ketogenesis is detectable and related body weight loss would occur during the first week of Qigong Bigu practice.Methods:During the prospective observational study,34 healthy adult participants attended the Qigong Bigu practice for one week.The blood pressure,body weight,calorie consumption,blood glucose and beta-hydroxybutyrate level were measured.Results:The body weight and body mass index decreased by 2.39±1.34 kg(95%CI 1.92–2.85)and 0.94±0.57(95%CI 0.73–1.15),respectively,after five days of practice(P<0.001).The systolic and diastolic blood pressure decreased by 17.86±14.17 mmHg(95%CI 12.36–23.35)and 9.75±7.45 mmHg(95%CI 6.86–12.64),respectively(P<0.001).The average five-day calorie consumption was 1197.47±569.97 kcal(95%CI 998.60–1396.35).Meanwhile,no symptomatic hypoglycemia or other significant side effects were observed.The blood beta-hydroxybutyrate level increased to a nutritional level of 1.15±1.12 mmol/L(95%CI 0.76–1.62).The calorie consumption negatively correlated to the beta-hydroxybutyrate level in the blood.The loss of body weight and the decrease of body mass index were positively correlated to the blood beta-hydroxybutyrate level.Conclusions:Qigong Bigu can decrease the blood pressure,the body weight and the body mass index in healthy adult participants.The fasting stage of Qigong Bigu is accompanied by ketogenesis.Clinical trial of Qigong Bigu in hypertension and epilepsy patients might be worthwhile.The blood beta-hydroxybutyrate might be used as a biomarker to evaluate the effect of Qigong Bigu practice during fasting.
基金supported by grants from the National Key R&D Program of China(2021YFD1800300)the Fundamental Research Funds for the Central Universities,the Fundamental Research Funds for Innovation Team of Gansu Province(23JRRA546)+6 种基金the Key Technologies R&D Program of Gansu Province(23JRRA1515)the Innovation Project for Young Scientist in Lanzhou(2023-QN-75)the Open Competition Program of Top Ten Critical Priorities of Agricultural Science and Technology Innovation for the 14th Five-Year Plan of Guangdong Province(2023SDZG02)the Project of National Center of Technology Innovation for Pigs(NCTIP-XD/C03)the GACC project(2024HK068)the Basic Research Fund of LVRI in CAAS(LVRI-1610312022006)the Earmarked Fund for CARS-35 and CARS-39-13.
文摘Foot-and-mouth disease(FMD)is one of the most important transboundary animal diseases caused by foot-andmouth disease virus(FMDV),leading to significant economic losses worldwide.Thefirst report of PanAsia lineage of FMDV in China was in 1999.Since 2011,18 outbreaks attributed to PanAsia lineage viruses have been reported across 7 provinces or municipality in China.Phylogenetic analysis indicated that these PanAsia strains were clustered into three distinct clades(clade 1,clade 2,and clade 3),with nucleotide homology ranging from 91.4%to 100%.The outbreaks of FMD caused by clade 1 strains occurred around 1999 when this lineage was prevalent globally.Clade 2 strains dominated from 2011 to 2013,while clade 3 strains were prevalent during 2018–2019,sharing only 93%homology with clade 2 strains and 91%with clade 1 strains.Tracing analysis showed that these outbreaks represented 3 distinct introductions of PanAsia viruses into China.Virus neutralization tests(VNT)have demonstrated that current commercial vaccines are effective to protect susceptible animals against these strains(r1>0.3).However,the growing demand for livestock has promoted animal movement and encouraged the exchange of products,services,and materials between countries,thereby heightening the risk of exotic strain incursions.Therefore,it is imperative to reinforce border controls and limit animal movements among various Asian countries continually to reduce the risk of new transboundary diseases,such as FMD incursion.Additionally,PanAsia-2 strains need to be taken seriously to prevent its incursions,and the relevant vaccines against PanAsia-2 strains need to be stockpiled in preparation for any possible incursion.