The WAN Mi-zhai's health preserving thought includes guayu,shendong,fashi and queji .The key of guayu is to control appetition to conserving essence.The aim of shendong is to keep the good psychology with peaceable mind.The view-point of fashi is to keep up with nature for harmonizing yin and yang.The denotation of queji is to prevent disease and regulate essence, qi and spirit.

The organophosphorus insecticides including a large group of insecticides were widely used in the world in the agriculture and household. Over 80% of the pesticides used in China are organophosphorus pesticides. Workers and the general population may be exposed to insecticides mixtures through water,air and the residue of food. After entering into human body,the insecticide mixtures can cause a combined toxicity. In this paper,the effects and toxicity mechanisms of combined exposures on health were expounded.

Objective To observe the influence of Dunhuang Nourishing Cream on the contents of SOD, GSH-PX and MDA in skin of aged rats. Methods Female SD rats of SPF level were divided into 6 groups:high, moderate and low dose groups of Dunhuang Nourishing Cream, model contrasting group, positive contrasting group and blank contrasting group. After removed the hair on the back, the drug groups were applied with Dunhuang Nourishing Cream, the model group was applied with the matrix of Dunhuang Nourishing Cream and the positive group was applied with vitamin E. After 30 days, the contents of SOD, GSH-PX and MDA in the skin were tested with the method of biochemistry analysis. Results Compared with the model group, the contents of SOD, GSH-PX and MDA in the high, moderate and low dose groups had significant difference (P

Objective To investigate the clinical efficacy and safety of laparoscopic appendectomy for acute appendicitis.Methods Nighty-two cases of acute appendicitis were included in this study,randomly divided into observation group (n =46) and control group (n =46) according to the random number table method.The observation group was treated with laparoscopic appendectomy,and control group with the traditional open appendectomy treatment.We compared the two groups of cases in postoperative conditions and the level of WBC changes and 1d and 3d after operation.Results The operation time of the observation group was shorter than that of the control group (t=4.049,P＜0.05);there was no significant difference in lymph nodes (t=0.570,P＞0.05);the amount of bleeding was less than that of the control group (t=20.748,P＜0.05).The get-out-of-bed activity time in the observation group was faster than the control group (t=9.221,P＜0.05);eating time was faster than the control group (t=8.794,P＜0.05);the anus recovery exhaust time was faster than the control group (t=17.423,P＜0.05);hospital stay was shorter than the control group (t=13.479,P＜0.05);the complication rate was lower than that of the control group (t=13.883,P＜0.05).The levels of 1d and 3d WBC were lower in the observation group than that in the preoperative group (t=7.277,26.911,P＜0.05);the levels of 1d and 3d WBC in the observation group were lower than those in the control group at the same time (t=3.6189,17.827,P＜0.05);the 3d WBC level of the observation group was lower than that of 1d (t=20.732,P＜0.05).Conclusion Laparoscopic appendectomy is a safe and effective treatment for patients with acute appendicitis,and it is worthy of further clinical research.

ObjectiveTo study the relationship between the range of operations and the incidence of climacteric syndrom,the time of episode, degree and estrogen level in endometriosis after operations. MethodsThesexual hormone level was measured and climacteric syndrome was followed up after operation in 55 endometriosis. ResultsThe incidence of climacteric syndrom in oophorectomy was more frequent and earlier than partial oophorectomy. Meanwhile, the syndrome was much severe and the level of E2 was lower in the former group than those in the later one. ConclusionSo we should retain the ovary tissue and blood supply as much as possible. 6 months postoperation is suggested to be suitable to begin hormone replacement therapy. The dosage should be adviced to remain the blood hormone level just like one ovary does.

Objective To evaluate the use of flexible cystoscope in the surgical management of complex renal calculi. Methods Flexible cystoscope and a set of stone baskets were used to help the surgical of complex renal calculi via the renal pelvis incision or the dilated ureter during operation.A pyelostomy with the use of a Foley's catheter was carried out if necessary and the residual stones could be removed via the pyelostomy tract later on. Results 31 cases of complex renal stones have been surgically treated.Flexible cystostomy was used intraoperatively in 11,postoperatively for the removal of residual stones in 16 and being used both intra and postoperatively in 4.A total of 106 stones have been removed.26 patients ( 83.9 %) have been free from any stone.2(6.4%) have undergone ESWL followed by flexible cystoscopy to remove the residual stones.3 patients (9.7%),however,still had residual stones in spite of the above procedure. Conclusions Flexible cystoscopy as an adjuvant procedure is an effective means in the surgical treatment of complex renal calculi especially for the removal of residual stones.The procedure is simple,safe and less expansive.

The development of membrane separation technology in antibioti cs extraction was presented. The application of high performance capillary electr ophoresis, aqueous two-phase system and reverse micelles extraction were also b riefly introduced. Besides, the foreground of these modern separation technolog ies was discussed.

Objective To investigate the treatment of Navicular bone fracture with Herbert screw.Methods Twenty-three patients with Navicular bone fracture were collected.They were all conducted with CT scan diagnosis and type,the small incision and targeting wire was used in operation.The Herbert screw was used to fix with pressure,plaster was also used to fix.After operation,the activity training was executed gradually.Results We conducted follow-up of 6-18 months in 23 patients,with an average of 12 months.All patients got bone-healing,the healing time ranges from 7 to 10 weeks,with an average of 9 weeks.There was one case of screw penetrating cortical bone,and one case of mild deformity healing,among the other 23 cases there were no complications including infection,nonunion,necrosis,osteoarthritis'etc.Conclusion The treatment of Navicular bone fracture with Herbert screw fixation can get firm fixation,function training and healing early,and it's worth of clinical promotion.

0.05).RGR showed that the toxicity level of magnesium alloys was 0.And there was no significant abnormality found in biochemical indicators and pathological analysis after inplant in vivo.[Conclusion]Magnesium alloys showed good biocompatibility to L929 mouse fibroblasts,and had no cacoethic effect to test animals,so the magnesium alloys is possible to be a new type and potential of bone surgery implant materials.

[Objective]To observe mouse osteoblasts vitality,histomorphology and growing development in vitro co-culture combined with magnesium alloys,confirm the biocompatibility of magnesium alloys and osteoblasts,and try to find out the possibility of magnesium alloys to be a new type of bone surgery implant material.[Method]Mouse osteoblasts were checked by Gomori and Von kossa stained,cultured and developed in vitro.Then the osteoblasts were mixed with magnesium alloys in a cell density of 3?104/ml.After 24、48、72 hours co-culture,the surface of magnesium alloys were observed by scanning electron microscopy(SEM) and confocal microscopy to find the change of osteoblasts.[Result]After culture in vitro,the osteoblasts well developed,and expressed stable character.After co-culture with magnesium alloys,the cells adhered and proliferated on the surface of alloys very well from SEM and confocal microscopy observation,which showed the osteoblasts had great activity and reproduce capability.[Conclusion]Magnesium alloys showed good biocompatibility and bone conduction capability with mouse osteoblasts,so the magnesium alloy is very possible to be a new type of bone surgery implant material.