1.Radiotherapeutic management of regional lymph nodes recurrence following mastectomy
Ziqiang PAN ; Jiayi CHEN ; Yan FENG
China Oncology 2000;0(06):-
Purpose:To investigate the prognostic factors f or local-regional control and survival in patients with regional lymph nodes re currence following mastectomy. Methods:Seventy-seven patients with their first recurrences in the regional lymph nodes treated during 1994-2003 were retrospectively analyze d. The recurrence were confined to supraclavicular region in 45 patients, in axi llary nodes in 16 patients, in internal mammary nodes in 6 patients, and with mo re than one lymph node region involved in 10 patients. The median follow-up was 34.4months. All patients were treated with radiotherapy to a total dose ranged from 50-74 Gy with a median dose of 60 Gy. Results:The median survival time was 4.67 years with 2-,5-an d 8- year survival rate of 77.8%,47.4% and 31.5% respectively. Disease-free i nterval, hormonal-receptor status were independent prognostic factors for survi val. Thirty patients had a second recurrence either in the original recurrent si te (4 patients) or in the other local-regional sites (26 patients). Chest-wall was the most frequently involved site for second recurrence, with 18 patients h ad a second recurrence including chest-wall, representing 23% of the whole coho rt. The axillary lymph nodes metastatic status of primary surgery was the only i ndependent prognostic factor for local control. Conclusions:Radiotherapy provides an efficient treatment for re gional lymph nodes recurrence following mastectomy. Twenty-three percent of pat ients present a second recurrence involving chest-wall, which suggests the sign ificance of an elective radiation to the chest-wall, especially in patients wit h 4 or more lymph nodes involved in primary surgery. Sub-group with a disease- free interval of more than 2 years, receptor positive has a better survival. The role of systemic treatment in the regional lymph nodes recurrent patients has n ot been established.
2.Factors related to choice of community health service centers in standardized training general practitioners in Shanghai
Man LI ; Zhigang PAN ; Shanzhu ZHU ; Libing SHAO ; Yan FENG
Chinese Journal of General Practitioners 2015;14(3):181-184
Objective To investigate the factors related to choice of community health service centers (CHSCs) in standardized training general practitioners (GPs) in Shanghai.Methods Totally 152 GPs,(including those of Traditional Chinese Medicine) who completed the residency training in 2013 and signed employment contract with community in Shanghai were surveyed with a self-designed questionnaire.Results Among all the participants,113 (74.3%) attached the greatest importance to the salary level when choosing CHSC,58 (38.2%) expected annual salary more than 120 000 Yuan during the first 3 years.GPs tended to work in the city center(40.1%) or CHSCs near to their home(38.2%),mainly because of the job commuting (59.9%).Considering career development,the CHSCs with high level comprehensive service (51.3%) and with large population (5.0%) were more attractive.GPs paid more attention to the national demonstration community (57.2%) and CHSCs with member ofShanghai outstanding young physician training program(51.7%).In this survey,household register was the main influencing factor for choosing CHSCs,Shanghai natives paid more attention to the location of the community than those not Shanghai natives (61.8% vs.34.2%),more inclined to CHSCs that close to their house (55.3% vs.21.1%),non-Shanghai natives preferred authorized strength (51.3% vs.28.9%).GPs of Western medicine expected higher salary than GPs of TCM (x2 =13.648,P < 0.05),Males expected higher salary than females (x2 =7.799,P < 0.05),Conclusions GPs pay the most attention on salaries and tend to work in the city central area,prefer CHSC with high level comprehensive service and large served population.The main factor influencing GPs to chose CHSCs is the household register,the category of Gps and gender.
3.Radiation therapy 45 patients with prostate carcinoma
Yunhai LI ; Xueguan LU ; Ziqiang PAN ; Yan FENG
Chinese Journal of Radiation Oncology 1992;0(01):-
Objective To evaluate the outcome , side effects and prognosis of prostate carcinoma treated with external radiotherapy. Methods From 1990 to 1999, a total of 45 prostate carcinoma patients were treated. Four cases were lost during follow up. Forty one patients underwent orchiectomy before radiation therapy , 29 received orchiectomy combined with hormone treatment. All patients received conventional radiation therapy with a median dose of 68.3 ?Gy (50.4 75.9?Gy), 1.8 2.0?Gy per fraction, five fractions weekly. Results The median follow up duration was 28 months (1 111 months). The overall 5 year survival was 76.4% and the 5 year disease specific survival was 76.5%. In terms of acute GI side effects, the frequencies of Grade Ⅰ, Ⅱ or Ⅲ reactions were 53.5%, 7.0% and 9.3% while Grade Ⅰ or Ⅱ , acute GU side effects were 41.9% and 4.7%, respectively. For the long term deleterious effects,Grade Ⅰ or Ⅱ in GI late complications were 16.7% and 7.1% and the GU late morbidities of Grade Ⅰ,Ⅱ or Ⅲ were 23.8%, 4.8% and 2.4%, respectively. Regional lymph node metastasis was closely correlated with both overall survival (P= 0.002 ) and disease specific survival (P= 0.002 ). Multivariate analysis revealed, only regional lymph node metastasis was of prognostic value to predict the overall survival and disease specific survival. Conclusion The outcome of radiation therapy for patients with T 2 T 4 prostate carcinoma is satisfactory with the side effects tolerable to most patients.
4.Application of biological dose concept in dose optimization for conformal radiotherapy of prostate carcinoma
Yunhai LI ; Yuan LIAO ; Lijun ZHOU ; Ziqiang PAN ; Yan FENG
Chinese Journal of Radiation Oncology 1995;0(02):-
Objective On basis of physical dose optimization, LQ model was used to investigate the difference between the curves of biological effective dose and physical isodose. The influence of applying the biological dose concept on three dimensional conformal radiotherapy of prostate carcinoma was discussed. Methods Four treatment plannings were designed for physical dose optimization: three fields, four-box fields, five fields and six fields. Target dose uniformity and protection of the critical tissue -rectum were used as the principal standard for designing the treatment planning. Biological effective dose (BED) was calculated by LQ model. The difference between the BED curve drawn in the central layer and the physical isodose curve was studied. The difference between the adjusted physical dose (APD) and the physical dose was also studied. Results Five field planning was the best in target dose uniformity and protection of the critical tissue -rectum. The physical dose was uniform in the target, but the biological effective doses revealed great discrepancy in the biological model. Adjusted physical dose distribution also displayed larger discrepancy than the physical dose unadjusted. Conclusions Intensified Modulated Radiotherapy (IMRT) technique with inversion planning using biological dose concept may be much more advantageous to reach a high tumor control probability and low normal tissue complication probability.
5.Antihypertensive effect of indapamide combined with enalapril on spontaneously hypertensive rats
chun-ping, YUAN ; guo-feng, YAN ; zhen-ye, PAN
Journal of Shanghai Jiaotong University(Medical Science) 2006;0(02):-
Objective To observe the antihypertensive effect of indapamide combined with enalapril on spontaneously hypertensive rats(SHRs).Methods Forty SHRs were randomly divided into 4 groups: control,indapamide,enalapril,and indapamide+enalapril(n=10 in each group).Medicine in varied doses was given to rats by intragastric administration.Variations of weight,heart rate and blood pressure were measured. Results Varied doses of medicine did not exert significant effects to the weight and heart rate of SHRs during and after the administration.In indapamide+enalapril group,the pressure of SHRs was significantly decreased with varied doses compared to that before the administration(P
6.Seroprevalence of neutralizing antibody among SARS-CoV-2 infected individuals
Yan FENG ; Yin CHEN ; Jian CAI ; Jinren PAN ; Wanwan SUN ; Yanjun ZHANG ; Feng LING ; Jimin SUN
Journal of Preventive Medicine 2023;35(2):121-125
Objective:
To investigate the seroprevalence and influencing factors of serum neutralizing antibodies among SARS-CoV-2 infected individuals, so as to provide the evidence for developing the health management and COVID-19 vaccination strategy among SARS-CoV-2 infected individuals.
Methods:
Recovered SARS-CoV-2 infected individuals from January 1st, 2020 to February 10th, 2021 in Zhejiang Province were recruited in March 2021. Participants' demographics, underlying diseases, date of definitive diagnosis and severity of clinical symptoms were collected using questionnaire surveys, and serum neutralizing antibody against SARS-CoV-2 was detected using a fluorescent immunoassay. In addition, factors affecting the seropositivity of neutralizing antibody against SARS-CoV-2 were identified using a multivariable logistic regression model.
Results:
A total of 559 SARS-CoV-2 infected individuals were enrolled, including 480 confirmed cases and 79 asymptomatic carriers, with an median (interquartile range) age of 47.00 (22.00) years, and all participants had never received COVID-19 vaccination. The median (interquartile range) duration from diagnosis to serum sampling was 387.00 (11.00) days, and the seroprevalence of neutralizing antibody against SARS-CoV-2 was 83.90%. The serum neutralizing antibody against SARS-CoV-2 was all positive 9 months after diagnosis, and the seroprevalence of neutralizing antibody against SARS-CoV-2 appeared no tendency towards a decline with time within 14 months after diagnosis (P>0.05). Multivariable logistic regression analysis showed that women were 1.892 times (95%CI: 1.169-3.064) more likely to produce serum neutralizing antibodies against SARS-CoV-2 than men, and mild, common and severe/critically ill SARS-CoV-2 infected cases were 2.438 (95%CI: 1.305-4.557), 4.481 (95%CI: 2.318-8.663), and 23.525 (95%CI: 2.990-185.068) times more likely to produce serum neutralizing antibodies against SARS-CoV-2 than asymptomatic carrier, respectively.
Conclusions
The seroprevalence of neutralizing antibody was 100.00% among SARS-CoV-2 infected individuals within 9 months after diagnosis. Individuals' gender and severity of clinical symptoms correlate with the seroprevalence of neutralizing antibody against SARS-CoV-2.
7.SWOT Analysis of Patent Strategy Implementation in the Manufacturing Industry of Chinese Patent Medicines in Guangdong Province
Huafeng PAN ; Yan YAN ; Yichong FENG ; Bing CHENG ; Jinling REN ; Ziming ZHAO ; Yaosheng TU
World Science and Technology-Modernization of Traditional Chinese Medicine 2013;(4):783-786
This study was aimed to analyze the environment and situation of patent strategy implementation of manufacturing industry of Chinese patent medicines in G uangdong province . This article pointed out that G uang-dong Chinese patent medicines manufacturing implementation patent strategy faced huge opportunities and chal-lenges. It was suggested that the fully understanding, mastering and using of beneficial conditions as well as con-trolling and eliminating the adverse factors will contribute to the better implementation of Chinese patent medicines manufacturing patent strategy in G uangdong province .
8.Clinical significance of serum miR-216a in diagnosis and prognosis monitoring of patients with acute pancreatitis
Pan LU ; Jiaxi SONG ; Feng WANG ; Jing YAN ; Shujun WAN ; Junjun WANG
Chinese Journal of Clinical Laboratory Science 2017;35(8):579-582
Objective To detect altered levels and clinical significance of serum miR-216a and prognosis monitoring in acute pancreatitis (AP) patients.Methods Serum miR-216a levels were determined by quantitative reverse-transcription PCR (qRT-PCR) assay among 80 mild acute pancreatitis (MAP) patients,80 severe acute pancreatitis (SAP) patients and 74 healthy controls.And amylase (AMY),lipase (LPS),Ca2+,glucose (Glu),hematocrit (HCT),triglyceride (TG),total cholesterol (TC) and C reactive protein (CRP) were measured by biochemical analyzer.The clinical usefulness of miR-216a for AP patients was assessed by ROC curve analysis and correlation analysis.Results Compared with healthy controls (11.12 × 10-5 [5.83 × 10-5,19.12 × 10-5],the serum miR216a levels were significantly increased in AP patients(38.49 × 10-5 [24.05 × 10-5,62.02 × 10-5],(U =-9.10,P < 0.01) . The serum miR-216a levels in MAP and SAP patients were (36.46 × 10-5 [22.29 × 10-5,55.80 × 10-5] vs 40.44 × 10-5 [25.84 × 10-5,65.48 × 10-5]),there was no significant difference between MAP and SAP patients (U =-0.96,P > 0.05).The areas under ROC curve (AUCROC) of miR-216a for differential healthy controls and AP patients was 0.870 (95% CI:0.825-0.915),cut-off value is 0.61.AUCROC of miR-216a for differential healthy controls and MAP patients was 0.865 (95% CI:0.808-0.921),cut-off value is 0.59.And AUCROC of miR-216a for differential healthy controls and SAP patients was 0.876 (95% CI:0.822-0.930),cut-off value is 0.66.Moreover,after the clinical improvement of the patients,the levels of serum miR-216a were significantly lowered from (41.88 × 10-5 [24.24 × 10-s,64.44 × 10-5]) to (20.58 × 10-5 [11.01 × 10-5,41.91 × 10-5]),the differences was significant(U =5.24,P < 0.0l).Correlation analysis showed that miR-216a was positively correlated with CRP (r =0.215,P =0.006) in AP patients.Conclusion The levels of miR-216a in serum of AP patients were increased,which is a potential biomarker for the diagnosis and prognosis monitoring of AP.
9.Semen quality and its influencing factors in preconception males in Nanjing area.
Yan-tai RUAN ; Lian-jun PAN ; Dan ZHAO ; Xing-yuan ZHANG ; Feng-lei ZHANG
National Journal of Andrology 2015;21(2):144-148
OBJECTIVETo investigate the semen quality and its influencing factors in preconception males in Nanjing area so as to provide some evidence for working out effective intervention measures.
METHODSTotally 687 men receiving preconceptional physical examination were enrolled in this study. A questionnaire survey was conducted among the subjects along with an analysis of their semen quality.
RESULTSThe median of sperm concentration was 63.3 x 10(6)/ml (95% CI [19.88-119] x 10(6)/ml). The median of grade a sperm was 33.03% (95% CI [19.38-55.05]%), that of grade a + b sperm was 52.08% (95% CI [39.53-69.37]%), and that of teratosperm was 91.75% (95% CI [69-100]%). The median concentration of seminal plasma PMN-elastase was 195.55 ng/ml (95% CI [76.16-3330.38] ng/ml) and that of seminal plasma zinc was 7.62 μmol/L (95% CI [1.5-23, 45] μmol/L). The positive rates of Ureaplasma urealyticum (UU), Chlamydia trachomatis (CT), and Gardnerella vaginalis (GV) were 42.4%, 0.3%, and 2.4%, respectively. The median of sperm DNA fragmentation index (DFI) of those whose wives had a history of adverse pregnancy was 20.25% (95% CI [2.15-68.25]%). Multivariate logistic regression analysis suggested that mental stress (OR 1.567, 95% CI [1.081-2.27]) and sedentariness (OR 1.772, 95% CI [1.211-2.592]) were independent risk factors for asthenospermia.
CONCLUSIONThe sperm quality of preconception males in Nanjing area is not encouraging, and it can be improved by changing undesirable lifestyle and reducing mental stress.
Adult ; Asthenozoospermia ; etiology ; China ; Chlamydia trachomatis ; isolation & purification ; DNA Fragmentation ; Gardnerella vaginalis ; isolation & purification ; Humans ; Leukocyte Elastase ; analysis ; Male ; Preconception Care ; Semen ; microbiology ; Semen Analysis ; statistics & numerical data ; Sperm Count ; statistics & numerical data ; Spermatozoa ; Ureaplasma urealyticum ; isolation & purification
10.Multi-disciplinarily comprehensive therapy based on femoral head arthroplasty for old femoral neck fracture in the elderly
Sha FENG ; Fugen PAN ; Yiming WANG ; Zuoqin YAN ; Zhengrong CHEN ; Chang'an GUO ;
Chinese Journal of Trauma 2015;31(10):921-924
Objective To investigate the effect and safety of comprehensive therapy based on femoral head arthroplasty in treating old femoral neck fracture in the elderly complicated with other severe basic medical conditions.Methods Thirty-six elderly patients with old femoral neck fracture were treated with femoral head arthroplasty.Mean age of the patients was 78.2 years, and mean duration since injury was 13.7 months.All the patients had at least one severe basic medical problem.Perioperative complications were retrospectively analyzed, and function of hip joint was evaluated 6 months after operation.Results One patient died because of severe pulmonary infection, while 16 electrolyte imbalance, 7 hypotension, 4 arrhythmia, 2 acute heart failure and 1 acute kidney injury were cured in the rest 35 patients.Harris hip score of the 35 patients increased from (22.0 ± 6.8) points pre-operatively to (69.2 ± 10.8) points 6 months post-operatively (P < 0.01).Conclusions Comprehensive therapy based on femoral head arthroplasty is effective for old femoral neck fracture in the elderly suffering severe underlying diseases.Early treatment, perfect pre-operative preparation, correct manipulation and appropriate perioperative management play important roles.