Objective To observe effects of the folic acid deficient diet on plasma homocysteine(Hcy) level and lesions of aorta in rats. Methods Twenty male Wistar rats were divided into two groups, folic acid deficent group (FD) and control group (Ctl).The rats were fed with folic acid deficient diet and normal diet for 3 months,respectively. The levels of serum folic acid and plasma Hcy as well as the activities of superoxide dismutase(SOD) and glutathione peroxidase (GPX) in erythrocytes were measured.The histological changes of aorta were also examined by light microscope. Results After 3 months treated with folic acid deficient diet, serum folic acid level 〔(6 08?1 84)?g/L〕 decreased significantly in rats of FD group compared either with pre experimental level 〔(13 32?2 02)?g/L〕 or with control one 〔(12 17?1 67)?g/L〕. Meanwhile, plasma homocycteine level increased significantly in rats of FD group 〔(28 66?6 07)?mol/L〕 compared either with pre experimental level 〔(9 75?1 86)?mol/L〕 or with control one 〔(9 49?1 77)?mol/L〕. The activity of erythrocytic SOD increased but GPX decreased obviously. The morphology lesions were also observed in aortic tissue. Conclusions Folic acid deficient diet induced hyperhomocysteinemia and arterial lesions.The high oxidant stress induced by hyper homocysteinemia may be one of mechanisms of arterial lesion.

ObjectiveThe mechanisms underlying therapeutic efficacies of Detumescence Analgesic Plaster was analyzed based on "effect-target" associations. MethodBased on CNKI and PubMed databases， the chemical components of Artemisia seed， bastard speedwell， and menthol in Detumescence Analgesic Plaster were collected. The capacity of transdermal absorption was predicted based on the Encyclopedia of Traditional Chinese Medicine （ETCM 2.0）. Golden Triangle of compounds with Accepted used for candidate target prediction based on the Integrative Pharmacology-based Research Platform of Traditional Chinese Medicine （TCMIP v2.0）according to the similarity of chemical structures. At the same time， the SoFDA data platform was employed to collect the symptoms related to the efficacy of Detumescence Analgesic Plaster and its related genes information. In addition， based on the interaction between the above-mentioned candidate targets and their efficacy-related genes， the "effect-target" interaction network of Detumescence Analgesic Plaster was constructed. The key targets by topological features calculation， and functional mining was carried out to explain the efficacy mechanism of Detumescence Analgesic Plaster. ResultA total of 165 candidate targets were obtained based on ETCM 2.0 and TCMIP v2.0 databases， and symptoms related to the efficacy of clearing heat， detumescence， and relieving pain， as well as 1 744 related genes were collected based on the SoFDA database. Network construction and analysis showed that the core effect targets of Detumescence Analgesic Plaster were mainly involved in regulating the "immune-inflammation" balance of the body and maintaining the homeostasis of material and energy metabolism， blood circulation， and nervous system functions， and they were closely related to the efficacy of this prescription in clearing heat， reducing detumescence， and relieving pain. Among them， the heat clearing group of Detumescence Analgesic Plaster had the functions of heat clearing， detoxifying， antibacteria， and anti-inflammation. The biological function of its key effect target group was related to correcting the imbalance of "immune-inflammation" induced by pathogens. The detumescence group of Detumescence Analgesic Plaster had the functions of reducing water and swelling and resolving hard lumps， and the biological function of its core effect target group was related to improving microcirculation disturbance. The pain relieving group of Detumescence Analgesic Plaster had the functions of removing stasis， promoting blood circulation， and relieving pain， and its core effect target group was related to correcting the nervous system and the disorder of material and energy metabolism. ConclusionThe heat clearing， swelling reducing， and pain relieving effects of Detumescence Analgesic Plaster may be closely related to its act on related candidate targets， so as to correct the imbalance of "nerve-immunity-vascular-axis"， regulate neuronal excitability and inflammatory response， and intervene in material and energy metabolism. The relevant research results lay a theoretical foundation for clarifying the advantages of Detumescence Analgesic Plaster and assisting its clinical precise positioning.