Objective To study the correlation between the body constitution classifications of traditional Chinese medicine (TCM)and the reproductive system diseases in young man. Methods All 749 objects took physical examination about the reproductive system diseases, filled in the questionnaire of male body constitution, and differentiated TCM classifications of body constitution. Results The incidence rate of redundant prepuce of depressed vital energy constitution and stagnant blood constitution was obviously higher than balance constitution (P＜0.01) , the incidence rate of prostatitis of dampness-heat constitution and depressed vital energy constitution was obviously higher than balance constitution (P＜0.01), the incidence rate of varicocele of Qi asthonia constitution and stagnant blood constitution was obviously higher than balance constitution(P＜0.01), the incidence rate of phimosis of Yang deficiency constitution was obviously higher than balance constitution (P＜0.01) , the incidence rote of prospermia of Qi asthenia constitution, Yin deficiency constitution and special constitution was obviously higher than balance constitution (P＜0.01) , the incidence rate of erectile dysfunction of Yin deficiency constitution and special constitution was obviously higher than balance constitution (P＜0.01) , the incidence rate of sterility of Yang deficiency consZtitution, Yin deficiency constitution and stagnant blood constitution was obviously higher than balance constitution (P＜0.01) .Conclusion There were some correlations between the TCM classifications of body constitution and the reproductive system diseases in young man.

Objective To reveal the difference between the standards for genu varum and genu valgum in the medical standard directory PLA Air Force( PLAAF) for recruitment of flying cadets and those adopted in the United States Air Force ( USAF) , and suggest a method for the reform of our flying cadets recruitment.Methods The rejection rate and comprehe nsive assessment qualification rate of genu varum and genu valgum during physical examinations for recruitment of flying cadets between 2012 and 2015 were analyzed.The different standards for genu varum and genu valgum in PLAAF and USAF flying cadets recruitment were compared and subjected to an empirical study.Results During the final physical examination for selection of flying cadets between 2012 and 2015, only 18 candidates were eliminated because of genu varum and genu valgum, accounting 9.1% of the total eliminated candidates because of orthopadics diseases.Four candidates with genu varum and genu valgum passed the comprehensive assessment in 2014 and 31 in 2015, which accounted for 15%of the candidates with orthopaedics diseases approved by comprehensive assessment.The standards for genu varum and genu valgum in PLAAF were based on morphology while those in the USAF based on the function of knees.According to the USAF medical standard directory, 9 of the candidates rejected because of genu varum and genu valgum were qualified and 9 disqualified.Among the candidates with genu varum and genu valgum approved by comprehensive assessment, 32 were qualified and 3 disqualified.Conclusion The standards for genu varum and genu valgum in PLAAF medical standard directory are of lower accuracy.The standards of USAF should be referred to and the function of knees should be considered in selection of flying cadets.Femur-tibia angle should be measured to improve the morphological standards.

Objective To compare the standards for recruitment of cadet pilots between PLA Air Force and the US Air Force,so as to offer reference for revising PLAAF medical standards for recruiting cadet pilots.Methods Literature from medical bibliographic databases and foreign military official websites was retrieved, four published reports and network information were cited and PLAAF medical standards were compared with those in China.Results The American medical standards include Department of Defense Instruction, Air Force Medical Examination and Standards, Air Force Medical Standards Directory, and Air Force Waiver Guide,which are independent and aimed directly at different examinations so that medical requirements have been gradually broadened.Compared to our standards, the American medical selection is more dependent on clinic consultations, and more detailed in specifications of diseases, more focused on body functions than on body shape, and the psychological screening is more subtle.Conclusion The standards adopted by US Air Force are more evidence-based.We are to rectify our medical standards accordingly, which should be efficacious, safe and effective for improving the overall quality of our military pilots.

Objective To analyze the spectrum of anus disease during the medical selection of flying cadets and com-pare the medical standard between US Air Force and Chinese Air Force in order to improve the system of medical selection. Methods The data on flying cadets of Chinese Air Force medical selection from 2012 to 2015 were retrospectively analyzed and these data were re-analyzed by medical standards for US Air Force flying cadets.Results Ninety students were elimi-nated because of anal disease,including 65 hemorrhoids,14 fistula and 11 fissure.The rate of disqualification from 2012 to 2015 was 48.28%, 33.33%, 31.37%, 39.69%and there was no significant statistical difference between each two years (x2 =2.6154,P=0.4548).There was statistically significant difference(P=0<0.05)in hemorrhoids standards between CAF and USAF,and significant difference in fistula and fissure standards.Conclusion Compared with Chinese medical se-lection standards,the US Air Force standards focus on whether the symptoms of disease have effect on air safety and effi-ciency.To improve our medical selection standards,we need to learn from foreign air forces and take our own conditions into account.

Objective To investigate the effect of different medical standards for the urinary system on the enlistment of pilots between PLAAF and USAF , and offer support to amendment .Methods Data on pilots′final enlistment between 2012 and 2015 were analyzed , and results of physical examinations of the urinary system were compared according to differ -ent medical standards .Results One hundred and twenty teenagers enrolled in this examination were disqualifiied due to defects of the urinary system while 97 applicants were qualified after comprehensive assessment of the urinary system .The main problems with the urinary system that affected results of pilots′enlistment were nephroptosia , renal cyst , microscopic hematuria , renal calcified foci and calculus .Conclusion Medical standards for the urinary system are different between PLAAF and USAF, especially those for nephroptosia , renal cyst and microscopic hematuria .The medical standards directo-ry about the urinary system approved by USAF can serve as a reference during our revision of current medical enlistment standards.

Objectives:To establish hybridomas secreting monoclonal antibodies(McAbs) against O6-methylguanine-DNA methyltransferase(MGMT) and to observe the relationship between MGMT expression and clinical responses to ACNU and BCNU in human brain tumors.Methods:The hybridomas were established by cell fusion.MGMT expression in 60 glioma specimens was detected by means of immunohistochemical assay.Results: Seven hybridomas secreting McAbs against MGMT were obtained.Thirty tumor specimens had no detectable or low level of MGMT expression(Mer-), while 30 specimens had high level of MGMT expression(Mer+). The Mer- patients showed more sensitive to ACNU and BCNU than the Mer+ patients.Conclusions: The high specific hybridomas secreting monoclonal antibodies(McAbs) against MGMT were established.The preliminary study indicated that MGMT negative tumors were sensitive to ACNU and BCNU, whereas MGMT positive ones were more resistant to nitrosourea drugs.