ABSTRACT
OBJECTIVE:To study the protective effects of Danshen injection on 5/6 nephrectomiy induced model rats with in-flammatory renal injury. METHODS:50 rats were equally randomized into a sham-operation (isometric distilled water) group,a model (isometric distilled water) group,a positive control [captopril 5 mg/(kg·d)] group and Danshen injection low-dose and high-dose [1.6,4.8 ml/(kg·d)] groups. Models were established by performing 5/6 nephrectomy on the rats in all groups except the sham-operation group. The rats were given drugs for 4 consecutive weeks from the 6th week. 24 h urine protein was determined for all rats every week. After the last administration,the contents of creatinine,urea nitrogen and interleukins 1β(IL-1β),IL-2 and IL-10 in rats’serum were determined. Pathological changes and infiltration of macrophages CD68 in rats’kidney tissues were ob-served. RESULTS:Compared to the sham-operation group,those in the model group had more 24 h urine protein and more obvi-ous renal pathologic changes during 1-4 weeks of administration,and higher contents of creatinine,urea nitrogen,IL-1β,IL-2 and IL-10 and CD68 positive expression in serum. Compared to the model group,during 2-4 weeks of administration,those in the posi-tive control group and Danshen injection low-dose and high-dose groups had less 24 h urine protein,milder renal pathologic chang-es,and lower contents of creatinine,urea nitrogen,IL-1β and CD68 positive expression in serum,and higher content of IL-10, and only the rats in the positive control group demonstrated lower IL-2 content. There of the above were statistical differences(P<0.01 or P<0.05). CONCLUSIONS:Danshen injection can alleviate renal pathologic changes and reduce inflammatory injury of the kidneys of 5/6 nephrectomiy induced model rats.
ABSTRACT
OBJECTIVE:To explore the genome-wide methylation differences between coronary heart disease (CHD) patients and healthy volunteers,and to investigate the relationsip of DNA methylation with CHD from epigenetics. METHODS:In case-control study,subjects were divided into CHD group(50 cases)and health control group(50 cases). DNA of 2 groups were sequenced with methylated DNA immunoprecipitation sequencing technology. The genome-wide methylation differences were analyzed and compared between 2 groups. RESULTS:The number of methylation peak in CHD group was higher than health group,with statistical signfi-cance(P<0.05). The methylation peak mainly distributed in 5'UTR,Intron functional elements. The number of reads in AQP1,SHB and other gene promoters in CHD group were lower than health group,and its methylation level decreased. The number of reads in GRK5 and serveal gene promoters on chrX in CHD group were higher than helath group,and its methylation level increased,with sta-tistical significance(P<0.01). CONCLUSIONS:The genome-wide methylation level of CHD patients are higher than those of healthy volunteers. The occurence of CHD is possibly associated with the change of methylation level of related gene promoters.