The protein band patterns of 102 Chinese male's seminal plasma demonstrated bySDS-PAGGE were analyzed.The common electrophoretic patterns consist of 40 ormore protein bands belonging to 3 divisions.Some band patterns are uniqus for theseminal plasma so that the seminal plasma can be distinguised from the human va-ginal fluid,saliva,colostrum and serum In addition,a variant band called 83kdtentatively was discovered in the seminal plasma.Its frequency is 8. 22?2. 81%.TheSDS-PAGGE pattern was successfully applied to the case work.

Objective To study the relationship between cytokine gene polymorphisms and chronic rejection in kidney allograft recipients and their donors.Methods The cytokine genotypes in- cluding TNF-?,IL-6,IL-10,TGF-?_1 and IFN-?in 144 consecutive first cadaveric kidney allograft re- cipients and 65 corresponding donors were detected by PCR-SSP method.The recipients were followed up for 5 years.The relationship between the TGF-?_1 genotypes of the recipients and donors and the chronic renal allograft rejection was analyzed.Results The incidence of chronic rejection in the recipi- ents with TGF-?_1 high producer genotype(39/91,42.9%)was significantly higher than in those with TGF-?_1 middle or low producer genotype(9/53,17.0%,P0.05).The incidence of chronic rejection in the recipients and donors with TGF-?_1 high producer genotype(4/4)was significantly higher than in those with other genotypes(31/110,28.2%,P

Genetic polymorphism of the C1R subcomponent of human first complement component was in-vestigated in 360 unrelated Chinese individuals using isoelectric focusing followed by immunoblotting.Six common and four rare were detected. The allele frequencies were as follows: C1R * 1 = 0. 5181,C1R ? 2=0. 5291,C1R * 3= 0. 1472 and C1R * R(C1R * 5,C1R * 6,C1R * 12 and C1R * 13) = 0.0056. The distribution of allotypes fitted the Hardy-Weinberg equilibrium. This complemlement sys-tem is a useful genetic marker for anthropological studies and forensic science practice.

Objective To compare the dosimetric differences of the targets and organs at risk (OARs) for early stage breast cancer patients receiving intensity modulated radiotherapy (IMRT) with supine or prone setups after breast conserving surgery.Methods After breast conserving surgery,15 left breast cancer patients with large and pendulous breasts were selected.Their planning CT images were acquired with supine and prone orientations respectively,based on which IMRT plans of 2 tangential fields were developed using the same optimization parameters.Treatment plans of the two setups were evaluated by comparing the target dose distribution,the doses and irradiated volumes of the heart,left lung,and right breast,and the monitor units (MUs).Results Superior conformal index (CI) was observed in the plans of prone setup than the supine cases (0.79 ± 0.05 vs.0.72 ± 0.04,W =138,P ＜ 0.01).The homogeneity index (HI) of prone positioning was also better than that of supine setup (1.09 ±0.01 vs.1.12 ± 0.02,t =-4.7,P ＜0.01).The planning target volume (PTV) receiving 95％ of prescribed dose (V95％),and the minimum doses (Dmin) of the prone cases were significantly higher than the supine patients (t =7.1,6.4,P＜0.01).Higher mean doses (D) were observed in prone cases (W=153,P＜0.01).The maximum doses (Dmax) of the supine plans were lower than the prone cases (t =-3.6,P ＜0.01).The right breast volumes receiving 5 Gy doses or higher (V5) were less in the supine cases than the prone plans (W=160,P ＜0.01).The heart volumes received no less than 30 Gy (V30),D of the heart,and the left lung volumes received higher than 20 Gy or 5 Gy (V20,V5) of the supine plans were significantly higher than the prone cases (W =133,120,120,P ＜0.01).No significant difference was observed on the MUs.Conclusions For cancer patients with large and pendulous breasts receiving IMRT after breast conserving surgery,prone setup leads to better homogeneity of target dose distribution,and reduces the doses and irradiated volumes of the heart and lungs.

Objective To compare the dosimetric differences of target and organs at risk (OAR) induced by the tangential and non-coplanar multi-fields used in the dynamic intensity modulated radiotherapy (IMRT) plans for breast cancer patients after breast-conserving surgery.Methods Forty patients with early-stage left breast cancer after breast-conserving surgery were included.Based on the CT anatomy of the same patient,dynamic IMRT treatment plans using two tangential fields,3,4 and 5 non-coplanar fields were designed respectively utilizing the same optimization objects.The plans were compared by means of target dose distribution,the doses and irradiated volumes of heat,left lung,right breast,and total monitor units (MUs).Results The conformal index (CI) and homogeneity index (HI) of planning target volume (PTV) in the plans using 4 and 5 fields were better than that using 2 fields (P ＜ 0.05).Maximum doses (Dmax) in PTV were significantly lower in the plans of 4 and 5 fields than of 2 fields (P ＜0.05).Yet the plans of 4 and 5 fields generated significant higher minimum doses (Dmin) in PTV than that of 2 fields (P ＜ 0.05).No significant difference was observed between plans of 2 or 3 fields.Across the four plans,the differences of right breast V5 (relative volume acquired at least 5 Gy of dose),heart V30,heart mean dose (D),left lung V20,V5 and D were not significant.Yet the disparities of total MUs were statistically significant (F =25.63,P ＜ 0.05).The least MUs were used by the 2 fields and the most MUs were observed in the 5-field plans.Conclusions Comparing with IMRT plans of 2 fields,using 4 or 5 non-coplanar fields can improve the target dose distribution without increasing OAR doses.As a tradeoff,more MUs are needed for multi-fields plans.

Objective:To investigate the association between p53 codon 72 polymorphism and the prognosis of breast cancer pa-tients receiving chemotherapy and radiotherapy after surgery. Methods:A total of 427 breast cancer patients treated with chemo-radio-therapy after surgery at Beijing Cancer Hospital were selected for this study. Polymerase chain reaction–restriction fragment length polymorphism was adopted to analyze the p53 codon 72 polymorphism. Survival analysis was conducted to compare the disparities of recurrence and survival among the patients with different p53 codon 72 polymorphic variants. Results:The distribution of three geno-types of p53 codon 72 in our cohort is as follows:Pro/Pro 18.3%(78/427), Pro/Arg 44.0%(188/427), and Arg/Arg 37.7%(161/427). No significant difference was observed among the local recurrence-free survival (LRFS), loco-regional recurrence-free survival (LR-RFS), distant disease-free survival (DDFS), and overall survival (OS) among the three genotypes (all P>0.05). Among the 303 estro-gen receptor (ER)-positive patients, OS was significantly better in patients with Arg/Arg genotype than those with Pro/Pro genotype (χ2=6.33, P=0.042). The multivariate analysis showed that the p53 codon 72 polymorphism is an independent factor of prognosis for LRFS, LRRFS, DDFS, and OS of ER-positive patients. For the ER positive patients with Pro/Pro genotype, the local recurrence, local-regional recurrence, distant metastasis, and mortality risks were 5.9 (HR=5.9, 95%CI 1.1-31.1, P=0.036), 3.1 (HR = 3.1, 95% CI 1.1-9.1, P=0.039), 2.8 (HR=2.8, 95% CI 1.3-6.0, P=0.010), and 4.0 (HR=4.0, 95% CI 1.3-12.0, P=0.013) times higher than those with Arg/Arg genotype, respectively. Conclusion:For ER-positive breast cancer patients who underwent surgery and chemo-radiotherapy, the local recurrence, loco-regional recurrence, distant metastasis, and mortality risk with Pro/Pro genotype are significantly higher compared to those with Arg/Arg genotype.

Objective To invcstigate the value of preoperative imaging morphologic classification in solitary small hepatocellular carcinoma treated by RFA.Methods The clinical data of 73 patients with small hepatocellular carcinoma who rcccivcd radiofrequency ablation at the Affiliated Drum Tower Hospital of Medical School of Nanjing University from January 2008 to December 2012 were analyzed retrospectively.The lesions were classified into three types according to gross appearance in preoperative contrast-enhanced computed tomography (CT):single nodular type (type 1);single nodular with extranodular growth type or confluent multinodular type (type 2);infiltrating type (type 3).Thc clinicopathological features of patients with 3 types of tumors were compared by statistical methods.Patients were followed up via outpatient examination and telephone interview up to August 2014 or death.Results There were 24 cases of type 1,35 cases of type 2,14 cases of type 3,and the proportion were 20.2％,32.9％,47.9％,19.2％,respectively.The preoperative alpha-fetoprotein of type 3 was significantly higher than othcr types.The disease-free survival time of the three types were (37.2 ± 3.3) months,(20.9 ± 4.0) months,(14.4 ±4.9) months.The prognosis of the irregular types (type 2,type 3) is poor than the regular types (type 1).The overall survival time were (72.5 ± 4.7) months,(66.2 ± 7.3) months,(31.2 ± 5.3) months.The type 3 was the worst.The results of univariate analysis showed that morphologic classification,preoperative AFP,tumor size were related factors affecting the prognosis of patients (P ＜ 0.05).The results of multivariate analysis showed that morphologic classification was the independent risk factors affecting the prognosis of patients (P ＜ 0.05).Conclusion The preoperative imaging morphologic classification is the independent risk factors affecting the prognoses of patients with small HCC,which is help to choose the best treatment for patients with small hepatocellular.

Objective:To investigate the diagnostic value of spiral CT head and neck angiography on carotid artery stenosis in patients with acute cerebral infarction.Methods:A total of 60 patients with acute cerebral infarction(ACI),who were treated in Affiliated Hospital of Yan'an University from January 2014 to January 2016,were selected as observation group,and 60 patients with non-acute cerebral infarction,as control group.The two groups of patients underwent spiral CT head and neck angiography.The degrees of carotid artery stenosis and the distribution of vascular plaques were compared between the two groups.The diagnostic value of spiral CT head and neck angiography in the diagnosis of carotid artery stenosis of the patients with ACI was evaluated.Results:The detection rates of mild and moderate stenosis in the observation group were significantly higher than those in the control group (P＜0.05),while the detection rates of severe stenosis and occlusion had no significant difference compared with the control group (P＞0.05).The total detection rate of stenosis in the observation group was higher than that in the control group (P＜0.05).There were plaques detected in the carotid bifurcation,common carotid artery,internal carotid artery and external carotid artery in the two groups.The total detection rate (69.4％) of the observation group was significantly higher than that (41.2％) of the control group (P＜0.05).Conclusion:Application of 128-slice spiral CT can effectively assess the head and neck angiography on carotid artery stenosis in patients with acute cerebral infarction.This method has a higher detection rate from mild to moderate stenosis and bilateral carotid artery plaques in the patients with ACI,and it has application value in the clinical diagnosis and prognosis.

Objective To compare the survival effects between using electron beams (EB) and modulated X-ray beams (XB) for boosting irradiation in breast cancer patients after breast-conserving surgery and postoperative radiotherapy.Methods This study retrospectively included 485 breast cancer patients who underwent breast-conserving surgery at Beijing Cancer Hospital.All patients underwent either EB or XB for tumor bed boost irradiation (10-16 Gy/5-8 fractions) after whole-breast irradiation of 46-50 Gy/23-25 fractions.Results Median follow-up time for the cohort was 96.04 months.Statistically significant increase of local recurrence free Survival (LRFS) was observed in XB group than in EB group.The 5-year and 10-year LRFS was both 98.4％ in XB group,as well as 94.2％ and 93.2％ in EB group,respectively (x2 =4.190,P ＜ 0.05).But there was not statistically significant difference in 5-year and 10-year overall survival (OS) between XB group(96.7％ and 95.8％) and EB group(94.9％ and 89.4％),respectively (P ＞ 0.05).The multivariate analysis showed that LRFS was significantly correlated with age≤40,positive pathological lymph nodes and positive expression of Her-2 receptor.But boost irradiation method was not independent prognostic factor for LRFS and OS (P ＞ 0.05).Conclusions For cancer patients treated with breast-conserving surgery and whole-breast postoperative radiation followed by a boost irradiation to tumor bed,XB irradiation was superior to EB irradiation in term of LRFS,yet no difference of OS was observed in both groups.

This paper reports the identification of vaginal secretions from the following stains by SDS-PAGGE,i.e.vaginal secretion stains and mixed stains kept at—30℃,4℃ for 3 years and at roomtemperature for 9 years.The method was applied to the forensic practice.