Tomato seedlings were used as experimental materials and treated with 1.0,2.0,3.0,and 4.0 mg/L ozone water irrigation and 0.2,0.4,0.6,and 0.8mg/L ozone water spray treatments.Indexes including the malondialdehyde(MDA)...Tomato seedlings were used as experimental materials and treated with 1.0,2.0,3.0,and 4.0 mg/L ozone water irrigation and 0.2,0.4,0.6,and 0.8mg/L ozone water spray treatments.Indexes including the malondialdehyde(MDA)content,superoxide dismutase(SOD),peroxidase(POD)and catalase(CAT),activities,soil and plant analysis development(SPAD)value,and nitrogen content of leaves were measured.Furthermore,the expression of antioxidant enzyme,chlorophyll synthesis and nitrogen absorption genes was analyzed after optimal ozone water treatment.The results showed that the activities of antioxidant enzymes in tomato leaves were significantly increased,and the MDA content in tomato leaves was significantly reduced by ozone water irrigation and spray treatment,which indicated that ozone water treatment can significantly improve the stress tolerance of tomato seedlings.Ozone water irrigation and spraying could also significantly increase the leaf SPAD value and nitrogen content of tomato seedlings,and the optimal concentrations of ozone water irrigation and spraying were 3.0mg/L and 0.6 mg/L,respectively.The effect of ozone water irrigation on improving the physiological characteristics of tomato seedlings was better than that of spraying.After treatment with the optimal concentration of ozone water,the relative expression of antioxidant enzyme,chlorophyll synthesis,and nitrogen absorption genes was significantly increased,and the maximum expression level was reached at 12h.In addition,ozone water irrigation could promote the expression of genes more than ozone water spraying,which was consistent with the improvements in the physiological characteristics of the tomato seedlings.展开更多
Objective:To explore the relationship between calcification of human vascular system and local inflammation using PET/CT.Methods:Patients who were treated with concurrent PET/CT in our hospital were collected continuo...Objective:To explore the relationship between calcification of human vascular system and local inflammation using PET/CT.Methods:Patients who were treated with concurrent PET/CT in our hospital were collected continuously,and their arterial image data were analyzed in parallel with standardized uptake values.(SUV)and corresponding slice calcification score(CS)measurement.SUV values were collected and measured for slices with CS greater than 100.Patients were grouped according to CS,and the correlation analysis between SUV values and CS in each group was performed.Results:Overall CS and SUVmax(r=0.62,P<0.05)and SUVmean(r=0.59,P<0.05)were positively correlated,among which CS and SUV values were in the SUVmax(r=0.72,P<0.05),SUVmean(r=0.59,P<0.05),SUVmax of CS 200-299 group(r=0.71,P<0.05),SUVmean(r=0.80,P<0.05),SUVmax of CS 300-399 group(r=0.47,P<0.05),SUVmean(r=0.53,P<0.05)were positively correlated,SUVmax(r=-0.17,P>0.05),SUVmean(r=-0.07,P>0.05)were negatively correlated in CS 400-499 group,CS There was no significant correlation between SUVmax(r=0.22,P>0.05)and SUVmean(r=0.18,P>0.05)in the 500 group.Conclusion:There is a certain correlation between the local vascular calcification area and the corresponding local inflammatory response in the calcification progress PET/CT has the potential to monitor early calcification.展开更多
基金The authors would like to acknowledge the financial support from the Shandong Provincial Key R&D Project of China(2016GNC111013).
文摘Tomato seedlings were used as experimental materials and treated with 1.0,2.0,3.0,and 4.0 mg/L ozone water irrigation and 0.2,0.4,0.6,and 0.8mg/L ozone water spray treatments.Indexes including the malondialdehyde(MDA)content,superoxide dismutase(SOD),peroxidase(POD)and catalase(CAT),activities,soil and plant analysis development(SPAD)value,and nitrogen content of leaves were measured.Furthermore,the expression of antioxidant enzyme,chlorophyll synthesis and nitrogen absorption genes was analyzed after optimal ozone water treatment.The results showed that the activities of antioxidant enzymes in tomato leaves were significantly increased,and the MDA content in tomato leaves was significantly reduced by ozone water irrigation and spray treatment,which indicated that ozone water treatment can significantly improve the stress tolerance of tomato seedlings.Ozone water irrigation and spraying could also significantly increase the leaf SPAD value and nitrogen content of tomato seedlings,and the optimal concentrations of ozone water irrigation and spraying were 3.0mg/L and 0.6 mg/L,respectively.The effect of ozone water irrigation on improving the physiological characteristics of tomato seedlings was better than that of spraying.After treatment with the optimal concentration of ozone water,the relative expression of antioxidant enzyme,chlorophyll synthesis,and nitrogen absorption genes was significantly increased,and the maximum expression level was reached at 12h.In addition,ozone water irrigation could promote the expression of genes more than ozone water spraying,which was consistent with the improvements in the physiological characteristics of the tomato seedlings.
基金Key R&D Program of Hebei Province(No.18277755d)Hebei Provincial Department of Finance,Hebei Provincial Health and Family Planning Commission,2017 government-funded excellent clinical medicine talent training and basic research project(No.[2017]No.46).
文摘Objective:To explore the relationship between calcification of human vascular system and local inflammation using PET/CT.Methods:Patients who were treated with concurrent PET/CT in our hospital were collected continuously,and their arterial image data were analyzed in parallel with standardized uptake values.(SUV)and corresponding slice calcification score(CS)measurement.SUV values were collected and measured for slices with CS greater than 100.Patients were grouped according to CS,and the correlation analysis between SUV values and CS in each group was performed.Results:Overall CS and SUVmax(r=0.62,P<0.05)and SUVmean(r=0.59,P<0.05)were positively correlated,among which CS and SUV values were in the SUVmax(r=0.72,P<0.05),SUVmean(r=0.59,P<0.05),SUVmax of CS 200-299 group(r=0.71,P<0.05),SUVmean(r=0.80,P<0.05),SUVmax of CS 300-399 group(r=0.47,P<0.05),SUVmean(r=0.53,P<0.05)were positively correlated,SUVmax(r=-0.17,P>0.05),SUVmean(r=-0.07,P>0.05)were negatively correlated in CS 400-499 group,CS There was no significant correlation between SUVmax(r=0.22,P>0.05)and SUVmean(r=0.18,P>0.05)in the 500 group.Conclusion:There is a certain correlation between the local vascular calcification area and the corresponding local inflammatory response in the calcification progress PET/CT has the potential to monitor early calcification.
