Epidemiological surveys show that folic acid can prevent prostate cancer, but fortified folic acid may increase the risk of the malignancy. The physician data queries from the National Cancer Institute of the USA describe folate as protective against prostate cancer, whereas its synthetic analog, folic acid, is considered to increase prostate cancer risk when taken at levels easily achievable by eating fortified food or taking over-the-counter supplements. We review the current literature to examine the effects of folate and folic acid on prostate cancer, help interpret previous epidemiologic data, and provide a clarification regarding the apparently opposing roles of folate for patients with prostate cancer. A literature search was conducted in Medline to identify studies investigating the effect of nutrition and specifically folate and folic acid on prostate carcinogenesis and progression. In addition, the National Health and Nutrition Examination Survey database was analyzed for the trends in serum folate levels before and after mandatory fortification. Folate likely plays a dual role in prostate carcinogenesis. There remains some conflicting epidemiologic evidence regarding folate and prostate cancer risk. However, there is growing experimental evidence that higher circulating folate levels can contribute to prostate cancer progression. Further research is needed to clarify these complex relationships.
Dietary Supplements ; adverse effects ; Disease Progression ; Folic Acid ; analogs & derivatives ; blood ; pharmacology ; Food, Fortified ; Humans ; Male ; Nutrition Surveys ; Nutritional Status ; Prostatic Neoplasms ; blood ; chemically induced

BACKGROUND: According to up-to-date development, the best timing to repair cleft palateis at 9-12 months old after birth when the articulation does not begin to develop.However, there are many over-eight-year-old children who still suffer from unrepaired cleft palate. Therefore, it is veryimportant to adopt proper surgery for these patients to improve palate form and articulatory function. OBJECTIVE: To study the characteristics of the cleft palate in patients of over 8 years old and the effects of palate repair and posterior pharyngeal flap transplantation (PPFT) on articulation. DESIGN:A controlled study with children patients as subjects. SETTING: Department of Maxillofacial Surgery, Medical College of Stomatology, Fourth Military Medical University of Chinese PLA PARTICIPANTS: Twenty-four children patients of cleft palate who were treated in the Department of Maxillofacial Surgery ,Medical College of Stomatology, Fourth Military Medical University of Chinese PLA from January 2000 through December 2003 were enrolled in the study. Fourteen were male and ten female. Their ages varied from 8 to 20 years old (mean 13.8 years). Three cases were bilateral complete cleft palate and twelve cases were unilateral complete cleft palate. Nine were incomplete cleft palate. METHODS :Two flap palatoplasty and upper pedicle PPFT were conducted in all the patients. In thirty days after surgical treatment, the patients were asked to repeat the words of a doctor in the phonetic lab with his or her lips 10 cm away from microphone. The words of the patients were recorded and evaluated subjectively by 5 doctors specialized in pathologic phones. MAIN OUTCOME MEASURES :The palatopharynx was observed with nasopharyngoscope before and after operation. And the improvement of nasal gas leakage and enhanced rhinophonia were also evaluated. RESULTS: The repaired cleft palate was healed in the first intention in all the patients. The soft palate retreated satisfactorily and the palatopharynx was apparently closed, which created good preconditions for articulation. The patients' articulation was also improved in different degrees. All the 24 patients had the fourth grade of enhanced rhinophonia and nasal gas leakage before repairing. After palate repair and PPFT, the enhanced rhinophonia and nasal gas leakage of grade 1 was in 3 patients, grade 2 in seven, grade 3 in six and grade 4 in eight patients. CONCLUSION: The combination of palate repair and pharyngoplasty is able to improve the form of soft palate and the articulation of over-eightyear-old patients with cleft palate.

AIM: To determine the contents of tetrandrine and fangchinoline in Qingshenjianfei Tablets by RP-HPLC. METHODS:In this method Zorbax C 18 column was used, and methanol—0.3%diethylamine (75∶25) as a mobile phase , the detection wavelength was at 242 nm. RESULTS:The recovery of tetrandrine was 103.65% and RSD was 1.59% .The recovery of fangchinoline was 97.11% and RSD was 1.91% (n=6). CONCLUSION: This method is simple,quick,reproducible and can be used for the quantitative analysis。

According to interactive teaching,Problem-based Learning (PBL),visual teaching and other theories,combining with the characteristics of medical practice teaching,the paper puts forward a set of informatization methods used for medical teaching and practice,verifies that the application of informatization technology to medical teaching can obviously improve the teaching efficiency and quality,and meanwhile proposes the follow-up construction contents,in order to provide reference for further development of informatization medical teaching.

Objective To explore the cause of acute myocardial ischemia early after coronary artery bapass graft (CABG) and surgical management on it. Methods From 2001 to 2009, 28 patients underwent urgent reoperation early after CABG due to acute myocardial ischemia. The incidence of reoperation is about 0.02%. The cause of reoperation inclouded early graft occlusion (10 cases) ,IMA damage or injury during harvesting(9 cases), inexactitude distal anastomosis(2 cases)and radial artery spasm(4 cases). The mean interval time between two operations was 8 hours. Reoperation was done under offpump bypass in 2 patients and on-bypass used in other patients. Unsatisfactoey graft were substituted with new graft material and thrombotic was removed. If LIMA was the reson for myocardial ischemia, an additional vein graft was inserted. The spasm radial artery were substituted with new vein graft. Completely revascularization was used in re-do CABG. Results Two patients died during reoperation. 8 patients was died between 1 day and 14 days after reoperation. IABP was used in 16 patients,which 2 patients received ECMO suppord and 2 patient received LVAD suppord at mean time. Conclusion There have very high mortality in acute myocardial ischemia early after CABG. The early diagnosis and correct surgical management can improve the rates of survival. The active prevent should be emphasized during the first CABG.

Objective Improve the level of education of medical information to promote faster and better development of medical information.Methods According to the disciplinary development lag,weak teachers' drawbacks of medical education and medical information technology status quo,research talent development solutions.Results Departure from the practice of medical information is proposed to establish and improve the incentive mechanism,curriculum system and teaching content changes,the establishment of hospital information system simulation laboratory recommendations.Conclusion For the development and maturation of the education of medical information,to promote the cultivation of medical information,certain referential significance.

Objective Promote the use of medical record information, the depth of excavation,provide strong support for clinical research and hospital management.Methods Medical Record Information lower utilization reasons put forward need to build the whole structure of the paperless electronic medical records, electronic medical records for research concluded that the key to building elements to provide support.Results Pointed out that the construction of paperless electronic medical records from the storage structure of the building medical record systems, and data warehouse technology combined start, outpatient and inpatient medical records while achieving interoperability, building regional health care, improve follow-up system, and finally pointed out the key technical implementation.Conclusions It is to promote the utilization of medical records, medical records for research to improve support efforts to promote development and progress of medicine and enhance the hospital's soft power has great significance.

Objective To establish the rapid purification of Coxsackievirus A16 using ultracentrifugation .And To prepare and i‐dentify the neutralizing monoclonal antibody against CA16 .Methods The CA16 culture supernatant was harvested and then con‐centrated by 100K capsule .The concentration of CA16 was purified by cesium chloride ultracentrifugation .Purification of CA16 were identified by transmission electron microscopy .BALB/c mice were immunized with inactivated CA16 .Spleen cells were harves‐ted and fused with SP2/0 myeloma cells ,hybridoma cell strain secreting mAb against CA16 were objected to screening .Character‐ization of the prepared mAb were analyzed by ELISA and microneutralization assay .Results The purified CA16 method of cesium chloride gradient ultracentrifugation was established ,TEM analysis was showed that CA16 particles have icosahedral structure ,the diameters of the viral particles were approximately 20-30 nm .Two hybridoma cell strains secreting mAb against CA16 were ob‐tained ,the subtypes of two mAbs were IgG2a ,the binding titers of Anti/CA16/5 and Anti/CA16/10 were 103 and 104 respectively . Neutralizing titer of the two mAbs were 1∶256 and 1∶1 024 respectively .Conclusion Establishment method of cesium chloride gradient ultracentrifugation was performed to purify CA16 ,the two mAbs with neutralizing ability to against CA16 may become ap‐plication of treatment and vaccine .

BACKGROUND:Some scholars believe that for primary spontaneous pneumothorax thoracoscopic surgery and intraoperative pleurodesis can effectively reduce the recurrence rate. ＜br> OBJECTIVE:To study the reliability and validity of video-assisted thoracoscopic entoiodine pleurodesis for treatment of primary spontaneous pneumothorax. ＜br> METHODS:Videothoracoscopy procedures were performed on 64 patients with primary spontaneous pneumothorax, including 46 males and 18 females, with an age ranging from 15 to 30 years. According to the use of pleurodesis, the patients were randomly divided into two groups:experimental group and control group. In the control group, no entoiodine was used;while in the experimental group, entoiodine dipped gauze was used on the visceral pleura. The operation time, intraoperative bleeding, postoperative drainage, postoperative leakage time, postoperative extubation time, postoperative complications and the recurrence rate of pneumothorax within 1 year after operation were compared between two groups. ＜br> RESULTS AND CONCLUSION:No significance was found in the operation time, intraoperative bleeding, postoperative leakage time, postoperative extubation time and postoperative complications between the two groups (P>0.05). Although the experimental group had significantly more postoperative drainage volume than the control group (P＜0.05), there were no consequences of medical intervention. Video-assisted thoracoscopic entoiodine pleurodesis could significantly reduce the recurrence rate of pneumothorax in 1 year after operation (P＜0.05). The results show that video-assisted thoracoscopic operation with entoiodine is a reliable and effective method to reduce the recurrence of pneumothorax after operation in patients with primary spontaneous pneumothorax.

BACKGROUND:Although thoracoscopy with pleurodesis is regarded as a positive and effective way for the treatment of malignant pleural effusion, the merit and demerit of sclerosants are directly related to postoperative recovery and the success of pleurodesis. OBJECTIVE:To evaluate the therapeutic effect of talc pleurodesisvia thoracoscopy in the treatment of refractory malignant pleural effusions METHODS:There were 14 male and 15 female patients in this study, age ranging from 38 to 79 years. Al patients with refractory malignant pleural effusion underwent talc pleurodesis under thoracoscopy. The postoperative adverse reactions, chest CT scan 1 month after operation and the fluid drainage were observed. RESULTS AND CONCLUSION:Twenty-nine patients with chest pain were observed in this study. Eighteen patients could relieve the pain itself without medications, eight patients required oral Tramadol and three patients took Demerol or morphine oraly to ease the pain. Fever occurred in three cases at 3 days after operation. Neither pneumonedema, acute respiratory failure, nor death ocurred postoperatively. One month later, complete successful pleurodesis was achieved in 24 cases, and partial successful in 3 cases, and unsuccessful in 2 cases. The results indicate that thoracoscopy with talc pleurodesis can be regarded as a positive and effective way for the treatment of malignant pleural effusion.