The present study was conducted to verify the influence of luteolin on apoptosis of Eca109 cells and to further investigate the possible mechanisms underlying its effect on apoptosis.The cells were exposed to differen...The present study was conducted to verify the influence of luteolin on apoptosis of Eca109 cells and to further investigate the possible mechanisms underlying its effect on apoptosis.The cells were exposed to different concentrations of luteolin(0,40,80,120,160,200,240M)for 24,48,and 72 h respectively.The influence of luteolin on proliferation of Eca109 cells was detected using MTT assay.Eca109 cells were then treated with luteolin(0,40,160,240M)for 24 h.The effect of luteolin on cell cycle progression and apoptosis was assayed by using flow cytometry(FCM).Expression of caspase9 and caspase3 mRNA and protein was analyzed by real-time PCR and Western blot respectively.The results showed that luteolin could inhibit the proliferation of Eca109 cells at all concentrations in a time-dependent manner and the relative inhibition rate showed an inverted U-shaped association with the concentration of luteolin.Further,the cell cycle was arrested in the S phase following treatment with luteolin.Apoptosis analysis indicated that luteolin could induce the apoptosis of Eca109 cells across the three concentration groups,which exhibited a trend of first promotional and then inhibitory with the increases in luteolin concentration.The effect of luteolin on the mRNA and protein expression of caspase 9 and caspase3 first manifested as promotion,then inhibition.Therefore,luteolin may serve a role in promoting cell apoptosis by inducing Eca109 cell apoptosis that involves the expression of caspase3,caspase9 mRNA and protein.This study provides theoretical basis for further study and clinical application of luteolin.The specific mechanism has not yet been clarified and the other activation pathways inducing apoptosis need to be further studied.展开更多
Objective The study aimed to explore the association between folic acid supplementation,maternal nutritional levels during pregnancy and intelligence development of infants.Method This was a prospective cohort study,m...Objective The study aimed to explore the association between folic acid supplementation,maternal nutritional levels during pregnancy and intelligence development of infants.Method This was a prospective cohort study,mothers and their offspring in Jurong Maternal and Child Health Hospital were followed up through pregnancy up to 1 year.The basic information of pregnant women was obtained through questionnaire survey,including pregnancy lifestyle,marital status,vitamin and mineral supplements during pregnancy.Blood samples of pregnant women were collected on admission,serum folate,vitamin B12 and homocysteine concentrations were determined.Maternal postpartum colostrum was collected and the concentrations of folate and vitamin B12 in colostrum were determined.Pregnant women(n=478)and their corresponding infants were followed up and the Developmental Screen Test scores were recorded at 1,3,6,8 and 12 months of age.Results Compared with the normal group,infants in the low serum folate group had a score of 0.12 points lower in the intellectual energy zone(95%CI:-0.23–-0.01,P=0.04),and infants with the high homocysteine level scored 1.30 points lower than the lower-level group(95%CI:-2.52–-0.08,P=0.04).In the colostrum low-vitamin B12 level group,infants scored 0.10 points lower(95%CI:-1.84–-0.02,P=0.02)in the social adaptation zone compared to the normal group.Conclusion In conclusion,folic acid supplementation in the pre-pregnancy supplementation group and the post-pregnancy supplementation group may be not associated with infant mental development.In addition,maternal folate and homocysteine may be related to the intellectual development of infants.The level of vitamin B_(12)in colostrum may be associated with infants’social adaptive capacity.This result may be caused by individual differences in folate and homocysteine metabolism in pregnant women.展开更多
基金Thanks for the support of the National Natural Science Foundation of China(https://isisn.nsfc.gov.cn/egrantindex/funcindex/prjsearch-list,grant nos.:81673147,81372985)he Fundamental Research Funds for the Central Universities(grant no.:2242017K40035)Postgraduate Research&Practice Innovation Program of Jiangsu Province(grant no.:SJCX170070).
文摘The present study was conducted to verify the influence of luteolin on apoptosis of Eca109 cells and to further investigate the possible mechanisms underlying its effect on apoptosis.The cells were exposed to different concentrations of luteolin(0,40,80,120,160,200,240M)for 24,48,and 72 h respectively.The influence of luteolin on proliferation of Eca109 cells was detected using MTT assay.Eca109 cells were then treated with luteolin(0,40,160,240M)for 24 h.The effect of luteolin on cell cycle progression and apoptosis was assayed by using flow cytometry(FCM).Expression of caspase9 and caspase3 mRNA and protein was analyzed by real-time PCR and Western blot respectively.The results showed that luteolin could inhibit the proliferation of Eca109 cells at all concentrations in a time-dependent manner and the relative inhibition rate showed an inverted U-shaped association with the concentration of luteolin.Further,the cell cycle was arrested in the S phase following treatment with luteolin.Apoptosis analysis indicated that luteolin could induce the apoptosis of Eca109 cells across the three concentration groups,which exhibited a trend of first promotional and then inhibitory with the increases in luteolin concentration.The effect of luteolin on the mRNA and protein expression of caspase 9 and caspase3 first manifested as promotion,then inhibition.Therefore,luteolin may serve a role in promoting cell apoptosis by inducing Eca109 cell apoptosis that involves the expression of caspase3,caspase9 mRNA and protein.This study provides theoretical basis for further study and clinical application of luteolin.The specific mechanism has not yet been clarified and the other activation pathways inducing apoptosis need to be further studied.
基金the Nutrition Research Foundation of Chinese Nutrition Society---Research Fund of Feihe Physical Nutrition and Health(Grant No:CNS-Feihe2018B01)Nanjing medical science and technology development fund(Grant No:YKK19127).
文摘Objective The study aimed to explore the association between folic acid supplementation,maternal nutritional levels during pregnancy and intelligence development of infants.Method This was a prospective cohort study,mothers and their offspring in Jurong Maternal and Child Health Hospital were followed up through pregnancy up to 1 year.The basic information of pregnant women was obtained through questionnaire survey,including pregnancy lifestyle,marital status,vitamin and mineral supplements during pregnancy.Blood samples of pregnant women were collected on admission,serum folate,vitamin B12 and homocysteine concentrations were determined.Maternal postpartum colostrum was collected and the concentrations of folate and vitamin B12 in colostrum were determined.Pregnant women(n=478)and their corresponding infants were followed up and the Developmental Screen Test scores were recorded at 1,3,6,8 and 12 months of age.Results Compared with the normal group,infants in the low serum folate group had a score of 0.12 points lower in the intellectual energy zone(95%CI:-0.23–-0.01,P=0.04),and infants with the high homocysteine level scored 1.30 points lower than the lower-level group(95%CI:-2.52–-0.08,P=0.04).In the colostrum low-vitamin B12 level group,infants scored 0.10 points lower(95%CI:-1.84–-0.02,P=0.02)in the social adaptation zone compared to the normal group.Conclusion In conclusion,folic acid supplementation in the pre-pregnancy supplementation group and the post-pregnancy supplementation group may be not associated with infant mental development.In addition,maternal folate and homocysteine may be related to the intellectual development of infants.The level of vitamin B_(12)in colostrum may be associated with infants’social adaptive capacity.This result may be caused by individual differences in folate and homocysteine metabolism in pregnant women.
