15 consecutive eyes of 13 patients with kerato- conus were treated with radial keratotomy and follo- wed up periodically about 1 year.The visual acuity of all eyes was improved significantly,in the early stage after surgey.The 12 eyes were examined one year postoperatively,1 eye maintainning good result,5 eyes obtainning some improvement of vision and flatt- ening of central cornea,6 eyes of which 4 had adv- anced corncal cones gainning no visual benefit from the surgery.Radial keratoto my appears to be effec- tive in early case of keratoconus,however the long- term result is still not known.

OBJECTIVE:To facilitate personalize information service in pharmacology by means of the personalized service functions of PubMed/Medline.METHODS:We reviewed the development process and the functions of My NCBI in the personalized information service in PubMed/Medline.RESULTS:The personalized information service in pharmacology can be achieved by using the multi-functions of PubMed/Medline which included My NCBI,RSS,E-mail,SMS and PDA downloads.CONCLUSION:My NCBI,RSS,E-mail,SMS and PDA downloads、the multi-functions of PubMed/Medline can be counted on to achieve personalized information service.

There are excellent medical ethics dealing with the relationship between doctors and patients in ancient China.This paper elaborated them from respecting for life, loving to save; skill specialization, theory and practice both excellent;gentle demeanor, gentle humility;universal equality;honest and upright, etc.Them provide reference for improving the doctor-patient relationship, medical personnel professional moral esteemremodeling.

Objective To improve the awareness of rare mixed prostatic carcinoma. Methods We reviewed the clinical data of 5 patients with prostatic mixed tumor and relevant literature to ex-plore diagnosis and treatment for it. Results Patient 1 with mixed small cell carcinoma and adeno-carcinoma of the prostate who underwent transurethral electrovaporization of the prostate (TUVP) and flumamide therapy died of lung metastasis 7 months later. Patient 2 with mixed small cell carcinoma and adenocarcinoma of the prostate who underwent TUVP and bilateral testicular resection died of lung metastasis 10 months later. Patient 3 with adenosquamous carcinoma of the prostate who underwent TUVP, radiation therapy and flumamide therapy died of multiple organ failure 8 months later because of the lung, liver, and multiple bone metastasis. Patient 4 with prostatic adenosquamous carcinoma who underwent cystoprostatectomy combined with urinary diversion has already survived for 1 year. Patient 5 with prostatic carcinosarcoma who underwent cystoprostatectomy, urinary diversion, pelvic lymphadenectomy, and radiation therapy died of lung metastasis 13 months later. Conclusion Mixed prostatic carcinoma is quite aggressive with bad prognosis. Its diagnosis relies on detailed pathological examination and immunohistochemical techniques. Patients with prostate adenocarcinoma should be followed up timely after endocrine treatment or radiotherapy. Radical surgery is most effective for mixed prostatic carcinoma.

The physical and chemical properties of alfalfa mosaic virus from white clover have been studied by analytical ultra-centrifuge. The results showed that this virus sample contains five different components which possess the S_(20) values of 98s, 82s, 72s, 65s, and 36s respectively. While measured the S values we have used schlieren light system by using UV system as control. The twice changed speed method also has been used to measure the S values at different concentration of samples under different ion strength.

Magnetic compression anastomosis (MCA)involves the use of two rare-earth magnets that attract to each other transmurally between two internal organs, resulting in compression and subsequent fistula formation to create a nonsurgical enteric, vascular, or biliary anastomosis with therapeutic aims. The magnetic vascular coupler allows a sutureless anastomoses between arteries and veins by using interventional radiological techniques. The MCA technique significantly reduces ischemic time during anastomosis, and has the advantages of low invasiveness and simplicity. It is a rather effective method for recanalizing between various hollow viscera, creating anastomosis such as gastrojejunostomy, choledochojejunostomy, or choledochoduodenostomy.Furthermore, this novel technique is considered to be a feasible and alternative reconstructive method for patients who develop significant bile duct complications following hepaticojejunostomy and living donor liver transplantation. MCA is a promising and novel technique in the further development of minimal invasive surgery.

Objective To observe the myocardial injury attributed to cardiopulmonary resuscitation, and to evaluate the impact of 4 ℃ saline perfusion on the ultra structure of myocardium. Method Twelve Pekimg white swine were induced to make models of ventricular fibrillation by direct current shock. Cardiopulmonary resuscitation was initiated 4 minutes after ventricular fibrillation established, and 10 swine survived from resuscitation. These swine were randomly(random number ) divided into hypothermia group ( n = 5) ( 4 ℃ saline infusion to lower the temperature) and control group ( n = 5). Haemodynamics were monitored. And ultra structure of myocardium was observed under electron microscope 24 hours later. The Mann-Whitney test was used to compare the consecutive variables of 2 samples. Results The damage to the ultra structure of myocardium, myofilaments and mitochondria, was found in the control group, while that to a much lesser extent in the hypothermia group was observed. Conclusions After cardiopulmonary resuscitation, 4 ℃ saline infusion has a protective effect on myocardium.

Hydroxypropyl methylcellulose (HPMC) propels self-emulsifying drug delivery systems (SEDDS) to achieve the supersaturated state in gastrointestinal tract, which possesses important significance to enhance oral absorption for poorly water-soluble drugs. This study investigated capacities and mechanisms of HPMC with different viscosities (K4M, K15M and K100M) to inhibit drug precipitation of SEDDS in the simulated gastrointestinal tract environment in vitro. The results showed that HPMC inhibited drug precipitation during the dispersion of SEDDS under gastric conditions by inhibiting the formation of crystal nucleus and the growth of crystals. HPMC had evident effects on the rate of SEDDS lipolysis and benefited the distribution of drug molecules across into the aqueous phase and the decrease of drug sediment. The mechanisms were related to the formed network of HPMC and its viscosities and molecular weight. These results offered a reference for selecting appropriate type of HPMC as the precipitation inhibitor of supersaturatable SEDDS.

Recent studies about the GCT are focusing on searching for new standards and indexes to prognose the biological behavior of the GCT because of the traditional standards and indexes have been realized often not agree with to the clinic. we review the lately research about the biological behavior of the GCT, then analyse and sum up the correlative indexes that could be significant in studying the prognosis of the GCT.

Objective To explore the applied value of MRI in diagnosing pyogenic of infection of gluteus muscles.Methods MRI data in 9 cases with pyogenic infection of gluteus muscles proved by operation or biopsy were retrospectively analysed by comparison with the pathological diagnosis.Results The pyogenic infections localized at unilateral gluteus muscles involving single,two or three gluteus muscles in all cases.On MRI,the infective gluteus muscles were swelling diffusely and the infections developed along the long axis of the muscles and most or all gluteus muscles were involved.4 cases appeared as suppurative myositis and 5 cases developed typical abscess.4 cases were accompanied with subcutaneous edema and the abscess broken into skin in one case.Conclusion The pathological characteristics of the stage and extent of the pyogenic infection in gluteus muscles can be displayed by MR imaging.