Purpose: To review radiotherapy for Grave's ophthalmopathy. Materials and Methods: From 1964 through 1992, 94 patients with Grave's Ophthalmopathy (4 unilateral and 90 bilateral lesions) were treated by radiotherapy with the doses of 9～25Gy. Results: The overall effective rate was 83%. Edema of the eyelid , proptosis and ophthalmalgia were significantly improved. No complication of pituitary gland was found for patients whose pituitary glands were involved in the radiation ports. Conclusion: Radiotherapy is effective for Grave's Ophthalmopathy. The radiation dose advised is 20～25Gy/3wks.

Objective:To evaluate mental health status of medical students and to explore its related factors.Methods:877 medical students were tested by Symptom Checklist(SCL-90),Simplified Coping Style Questionnaire(CPS),and the stressful events items;240 of them were tested by Eysenck Personality Questionnaire (EPQ).Results:①Compared with the SCL-90 norm of youth group,medical students had higher scores ( P

Objective To study the value of laparoscopic cholecystectomy (LC) for treating gallbladder benign diseases in aged patients. Methods Laparoscopy cholecystectomy (3-port or 4-port) was performed in 2335 senile patients with gallbladder benign diseases from December 1992 to May 2005. Results Five patients were found as having the Mirizzi syndrome and were given a subtotal cholecystectomy. In 18 patients with a frozen Callot’s triangle, the anterior wall of the gallbladder was resected and the mucous membrane on the posterior wall was electrocauterized. LC was completed smoothly in the remaining 2312 patients. No conversions to open surgery were needed. The operation time was 8~55 min (mean, 19 min), and the intraoperative blood loss was 1~ 50 ml (mean, 8 ml). An abdominal drainage tube was placed in 213 patients, including double-cannula lavage in 56 patients. The length of hospital stay was 4~16 d (mean, 6 d). Follow-up examinations for 10 days ~13 years in 1859 patients showed no biliary stenosis, gallbladder pouch, or residual stones. Conclusions Laparoscopic cholecystectomy is safe and feasible in aged patients, being the first choice of operative method. Proper perioperative management, careful prevention co-morbidities, and control of operation time as short as possible are important for senile patients.

Objective To explore family environment,parenting style,and personality of the patients with internalizing and externalizing mental disorders.Methods 137 adolescents with internalizing mental disorder(IMD),63 adolescents with externalizing mental disorder(EMD) and 228 normal subjects (control group) were investigated with Family Environment Scale-Chinese Version (FES-CV),Family Upbringing Style Questionnaire (FUSQ) and the NEO Five Factor Inventory (NEO-FFI).Results (1) The IMD group scored significantly lower on the cohesion (6.17 ± 2.68),active recreational orientation (3.84 ±2.50),moral-religious emphasis (4.48± 1.65),organization (5.35±2.30),expressiveness (4.60±2.00),achievement orientation (5.31 ± 1.84),and higher on the conflict (4.01 ± 2.38) than control group (P＜ 0.05).The EMD group scored only higher on the conflict (4.01±2.38) than control group (P＜0.05).(2) The all dimensional scores(apart from the parent's expect-demanding) of the IMD group were significantly lower than that of control group on the FUSQ (P＜0.05).The scores on the mother's democracy-authoritarian,parent care-protect,catholic-indulgences,parental-control,and expect-demanding were significantly lower in the EMD group than those in the control group (P＜0.05).(3) Relative to the control group,the IMD group got lower scores on the agreeableness (42.02±5.01),conscientiousness (38.91±8.01),and extraversion (35.17±8.57),and higher score on the neuroticism (40.10±8.55);the EMD group got lower scores on the agreeableness(42.75±5.12),conscientiousness (39.95±8.27) and openness (40.00±6.75).Conclusion Adolescents with mental disorders are living in conflict and discord family environment,feel more negative parenting such as authoritarian,harsh,indulgence,control,and demanding,and show some unhealthy personality such as low agreeableness,low conscientiousness,and high neurotic.

Objective To study the influence of quedcetin on the collagen synthesis of cultured fibroblasts and to explore the mechanism.Methods The inhibitory effect of quercetin and radiation on fibroblast proliferation was assayed using MTT assay.Collagen synthesis was detected by hydroxyproline colorimetric analysis.Immunocytochemical staining method was used to investigate the expression of collagen Ⅰ and Ⅲ.The mRNA expression of typeⅠ,type Ⅲ collagens and TGF?-1 were assayed by reverse transcriptionpolymerase chain reaction(RT-PCR) and real-time PCR technique.Results Keloid fibroblast cell proliferation and collagen synthesis of fibroblasts were inhibited by quercetin in a dose-dependent manner.Significant inhibition was observed by the treatment with quercetin and radiation together.Immunocytochemical staining indicated the IOD of type I and Ⅲ collagen protein was down-regulated by quercetin and radiation.Both collagen Ⅰ and collagen Ⅲ gene in the quercetin groups showed a significantly decreased mRNA expression compared with that in the untreated group,especially in the group treated with both quercetin and X-ray.Procollagen gene expression was inhibited and then decreased type Ⅰ and Ⅲ protein syntheses of fibroblsts,particularly type Ⅰ procollagen gene(P

Objective To reconstruct the new engineered bacteria expressing hPAB-? triploids so as to improve the outputs of recombinant human peptide antibiotic ?. Methods The recombinant plasmid pQE31-hPAB-?(3) was transformed into E. coli. M15 to screen the new engineered bacteria expressing hPAB-? triploids. The stabilities of phPAB-?(3)/M15 were observed in continuous cultures. The expression levels of the fusion peptides of interest and the bacterial yields of the new engineered bacteria phPAB-?(3)/M15 were compared with that of phPAB-?(3)/JM109 in different fermentation scales. Results Genetic stability of the recombinant plasmid and phPAB-?(3)/M15 was 100 after 10 passages. Take bacterial yields into account, the new engineered bacteria phPAB-?(3)/M15 was better than phPAB-?(3)/JM109 at the similar expression levels of the target proteins by “t” test analysis (P

delineated individually based on CT or MRI to guarantee their coverage in radiotherapy.

Objective To compare the dose distribution of the three-dimensional conformal radiotherapy(3D-CRT)and 5-field or 7-field intensity modulated radiation therapy(IMRT), and to explore the value of IMRT in preoperative radiotherapy for rectal cancer.Methods Ten rectal cancer patients treated with preoperative combination radiotherapy and chemotherapy were enrolled in this study. 3D-CRT plan and the 5.field or 7-field IMRT plans were performed for each patient.The conformal index (CI),heterogeneity index(HI)of the planning target volume(PTV)and the dose of normal organs of 3D-CRT plan(3D-CRTp)and the 5-field or 7-field IMRT plans(IMRT5fp or IMRT7fp)were analyzed with the dose-volume histogram.Results The CI values of PTV were 0.91,0.87 and 0.78 in IMRT7fpIMRT5fp and 3D- CRT but with IMRT7fp>IMRT5fp>3D-CRTp(t=-5.69、-8.91,P<0.01),respectively.The HI values of PrV were 1.09,1.08 and 1.05 in IMRT5fp,IMRT7fp and 3D- CRTp but with IMRT5fp >IMRT7fp>3D- CRTp(t=3.41、-6.89,P<0.01),respectively.The ratio of dose volume were 0.08,0.10 and 0.19(t=2.79、3.52,P<0.05)in IMRT7fp,IMRT5fp and 3D- CRTp on the small intestine V50,with 0.07,0.10 and 0.19(t=2.58、3.40,P<0.05)in IMRT7fp,IMRT5fp and 3D-CRTp on the bladder V50 and 0.01,0.01 and 0.05(t=3.00、3.17,P<0.01)in IMRT7fp,IMRT5fp and 3D- CRTp on the fomoral head V45.The ratio of dose volume were 0.31 and 0.38(t=3.91,P<0.01)in IMRT7fp and IMRT5fp on the bone marrow V50,with 0.07 and 0.10 in IMRT7fp and IMRT5fp on bladder V45.Conclusions IMRT plan is superior to 3 D- CRT plan in dose conformal degrees of PTV with preoperative radiotherapy of rectal cancer and can significantly protect the normal tissues.The 7-field IMRT plan might be the optimal plan for dose conformal degree and dose uniformity compared with 5-field IMRT.

Objective To evaluate the lower urinary tract symptoms(LUTS)after Drostate cancer brachytherapy. Methods 122 patients with prostate carcinoma underwent125 I seed implanta-tion.All patients were at clinical stage Tl.N0 Mo-T3.N.Mo with Gleason score 5 to 9,serum PSA 0.9-65.Ong/ml,prostate volume 12 to 57m1.30-86 seeds were implanted bv 16-28 needles with seed activity 1.11-1 9.6 MBq mci,total seed activity 444-1 5 9 1 MBq. International prostate symp-tom score(IPSS)ranged from 3 to 19,with mean of 12.All the patients received d-blocker and 106 cases(86.9%)received androgen deprivation therapy(ADT). Results Patients were foilowed up for 3-34 months(mean 21 months).Acute urinary retention was found in 8 cases(6.6%)and mild urina-ry incontinence was found in 10 cases(8.2%).During the follow-up,107(87.7%)of them had LUTS or LUTS symptoms aggravated.Percentage of patients with LUTS after brachytherapy at different time point were as follow:15 d,16.4%;1 month,80.3%;2 months,81.2%;3 months,74.6%;6 months,42.0%;9 months,25.2%;12 months,18.5%;15 months,11.5%;18 months,7.4%;21 months,2.5%;24 months,3.3%and 30 months,O%.Larger prostate volume and higher IPSS before brachytherapy were correlated with LUTS lasting time.Simple linear regression analyses re-vealed prostate volume(r=0.281,P=0.003)and IPSS(r=0.254,P=0.012)before brachytheraDy to be significant predictors of LUTS period respectively. Conclusion IUTS after prostate cancer brachytherapy is common and long lasting,but not serious,which could be relieved by mblockers and ADT.

Objective To study the image quality control system to ensure that equipment meet clinical needs.Methods It was scanning the Catphan504 phantom with models of high quality head,standard dose head and pelvis,we could get the results of CT numbers linearity,uniformity,spatial resolution,contrast resolution.Using T test to compare different scanning technique results.Results The standard dose head scanning technique was better than the pelvis scanning technique in CT numbers linearity test,and gets the best result in uniformity test.The result of CT numbers uniformity was higher in the standard dose head scanning than the high quality head and the pelvis scanning (9.7 ±3.9 vs.17.9 ±5.3,P =0.00 and 9.5 ± 4.0 vs.31.1 ± 5.7,P =0.00).The result of contrast resolution was higher in the pelvis scanning than the high quality head and the pelvis scanning (5.6 ± 0.1 vs.1.3 ± 0.5,P =0.00 and 6.0 ± 1.0 vs.1.3 ± 0.5,P =0.00).The result of spatial linear distance was very accurate,the range was 4.98 -5.06 cm.Conclusions The results of spatial linearity test are stable and accuracy,but CT numbers linearity and uniformity test are affected by the scanning technique significantly for device.To spatial resolution test and contrast resolution test,we need to set the standard and tolerance according to each linear accelerator specialty.