Objective To explore the effects of Gantaikang on porcine serum-induced liver fibrosis in rats. Methods Hepatic fibrosis was induced in rats by intraperitoneal injection of 0.5ml porcine serum twice a week. Gantaikang was simultaneously administered intragastrically to rats in the intervention group at dose of 0.27g/kg?bw for 7 weeks. Then blood was collected, and serum levels of hyaluronic acid(HA), laminin(LN) and precollagen III(PCIII) were measured. Liver tissues was removed, and the pathologic changes of liver were observed by routine, Masson and James staining. The semi-quantitive analysis of collagen and reticulin in the liver tissues were performed. Results Gantaikang could effectively counteract the increase of HA, LN and PCIII level in serum, and attenuate hepatic collagen and reticulin proliferation induced by porcine serum in rats. Conclusion The results suggested that Gantaikang could, to a certain extent, prevent and attenuate immunologic hepatic fibrosis induced by porcine serum in rats.

Objective To evaluate toxicity and safety of trans-resveratrol (t-RSV). Methods For assays of acute toxicity,genetic toxicity, and sub-chronic toxicity, Ames test, mice bone marrow erythrocyte micronucleus, and mice sperm abnormality were performed. Results In the acute oral toxicity tests, maximum tolerable dose (15 g/kg) in male and female Kunming mice showed no toxicological signs. For 90-d feeding of t-RSV at dosage range of 167-500 mg/(kg·d) in both male and female Sprague-Dawley rats, no noticeable toxicological effects were observed.Conclusion T-RSV has no acute toxicity and no genotoxicity, no harmful effects on the human body at the tested dosage range and thus resveratrol is safe for human consumption.

Objective To construct a spatial genetic database of Oncomelania hupensis and a managing system for spatial distribution and population studies based on landscape genetics theory. Methods The uninfected Oncomelania snails were collected from the field. Collected sites database, specimen database and genetic information database were set up by using Microsoft SQL 2000, and the managing system was set up by using Visual Basic 6.0. Results The Oncomelania snails were collected from the field. The database were consummated with 676 specimens, 73 collected sites from 10 provinces, and the database could be used as a series of celerity tools with appending, querying, deleting, statistics and export functions. Conclusion The spatial genetic database and managing system of Oncomelania hupensis can be used to manage snail specimens for different studies with a clear interface and simple operation. It is worthy to renew the database for further spatial genetic studies.

The obstruction of kidney collaterals by turbid and blood stasis is a characteristic pathogenesis of gouty nephropathy,which runs throughout the whole process of the disease.The pathogenesis of disease of gouty nephropathy is different from that of other chronic kidney diseases,determines the occurrence and development direction of patterns and symptoms,and is the common pathogenesis behind different patterns.The pathogenesis of pattern is the main body of pattern differentiation and treatment of gouty nephropathy,damp-heat obstruction and spleen-kidney deficiency and is the pathogenesis base of same treatment for different diseases.The pathogenesis of symptoms is a direct pathogenesis induced by symptoms.In treatment of gouty nephropathy,symptomatic treatment can improve the therapeutic effects based on disease and pattern differentiations.

Objective To systematically assess the interventional effects of aerobic combined resistance exercise on walking ability,cardiorespiratory endurance,dialysis adequacy and quality of life in the patients with hemodialysis(HD).Methods The published randomized controlled trials on the interventional effects of aerobic combined resistance exercise in HD patients were retrieved from the databases of PubMed,Cochrane Library,Embase,Ovid,Web of Science,CNKI,VIP,Wanfang and China Biomedical Literature Service System(SinoMed).The retrieval time was from the database establishment to May 28,2021;the included literatures were analyzed by using RevMan 5.4 software.Results A total of 24 studies with 1 086 research subjects were included.The results showed that compared with the control group(adopting the usual care or conducting no-resistance limb movement),the walking ability,cardiopulmonary endurance and the dimensions of partial quality of life in the HD patients of the intervention group(aerobic combined resistance exercise)were signifi-cantly improved.The dialysis adequacy during dialysis in the intervention group was significantly improved compared with that in the control group.Conclusion Aerobic combined resistance exercise could improve the physical function,quality of life and dialysis adequacy in HD patients,and it is recommended that the patients are encouraged to conduct the aerobic combined resistance exercise by combining with the specific situation.