Objective To analyze the onset, clinical manifestation, causation, complications of pediatric uveitis. MethodsOne hundred and two patients with uveitis under 16 year-old were retrospectively studied. They visited the clinic in Peking University First Hospital from November 1979 to December 2008. Their age ranged from 2.5 to 16 years old, with a mcan of 11.9 years. Routine exam was carried out, including visual acuity, slit lamp, fundus, and laboratory workup. The diagnosis and classification were made by the anatomic location according to the standard of The International Uveitis Working Group. The data of disease history, age of onset, manifestation, recurrence, causation, systemic diseases, complications, and lab examination were analyzed. Results A total of 102 patients (170 eyes)with pediatric uveitis were included in this study, 68 patients (66.6%) were bilateral cases. Anterior uveitis represented in 38 patients (37.3% ), intermediate uveitis in 19 (18.6%), posterior uveitis in 10 (9.8%),and panuveitis in 35 (34.3%). The disease duration was from five days to 2.4 years, with a mean of 3.6 months. The follow-up time was two weeks to more than ten years. The first three causes of pediatric uveitis were juvenile idiopathic arthritis, Vogt-Koyanagi Harada disease, and Behcet's disease. 36 patients were found with complications, and among them 19 had complicated cataract, seven had secondary glaucoma, five had corneal band dystrophy, 12 had iris synechia (both anterior and posterior), one had retinal detachment, two had eye atrophy, and one patient with juvenile idiopathic arthritis had bilateral femoral head necrosis because of the use of steroid and hip joint was replaced. There were ten children suffering more than two complications. Conclusions Pediatric uveitis is a possible blindness disease with variety of etiology and manifestations, and tends to cause complications. Early and special attention must be taken to avoid serious consequences.

Objective To understand the content of fluoride in dinking water in the rural area in Yaodu district and to provide the data for water improvement. Methods 873 water samples were randomly collected from 175 villages in Yaodu district during Apr.-Sep., 2006 and the fluoride ion selective electrode was used to determine the fluoride in dinking water. Results The eligible rate of fluoride concentration in the investigated drinking water samples was 54.75%. The range of fluoride concentration was 0.24-5.44 mg/L. Conclusion The investigated area is the moderate or severe prevalent area of endemic fluorosis, water improvement should be enhanced in this area.

Objective To investgate the changes of bone mineral density (BMD) and biochemical markers of bone metabolism in elderly male patients with osteoporosis (OP) . Methods BMD and bone mineral content (BMC) of the lumbar spines (L 2～4 ) and the biochemical markers of bone metabolism in serum and urine were measured. Results BMD and BMC in OP group was reduced by 21.6% and 25% respectively vs that in control group. Bone formation indicators of serum levels of ALP and BGP in OP group were increased by 25.4% and 222% respectively vs that in control. At the same time, bone resorption indicators of urine Hop/Cr and NTX/Cr ratios were significantly increased by 22.6% and 223% in OP group than that in control. Serum T level of OP group was lower than that in control group and serum 25 OH D3 was below the normal value in both groups. Conclusions BMD and BMC of the lumbar spines (L 2 4 ) are the main basis for diagnosing the osteoporosis in men. Some elder male patients with osteoporosis are due to high turnover of bone metabolism. Androgen plays an important part in maintaining the bone mass. Vitamin D deficiency in elder men is the main reason occurring osteoporosis.

Objective To observe the effect of Hydroxycamptothecin (HCPT) on proliferation of human lung cancer cell line A549 in vitro. Method Using cell calture and MTT assay to observe the effect of HCPT on proliferation of human lung cancer cell line A549. Result Lower concentration of HCPT had no evident inhibitory effect on the human lung cancer cell line A549 after 24 h. The effect was evident when the concentration of HCPT was up to 50 ?g/mL, and the inhibitory rate was 44.17%. The inhibitory rate was 50.28% when the concentration of HCPT was up to 100 ?g/mL. The inhibitory effect of HCPT became more significant with the stimulation of the time, and the inhibitory rate of 100 ?g/mL concentration of HCPT was 70.98% after 48 h. Conclusions HCPT can inhibit the proliferation of human lung cancer cell A549 in vitro. The effect is dose and time dependent.

SIRT1 (Sirtuin type 1 ), a member of histone deacetylase, dependents on nicotinamide adenine dinucleotide ( NAD + ). It involves in the covalent modification of histones, participates in tumor development and progression through transcription, translation and post-translational modification and so on. Therefore, the expression of SIRT1 in tumor cells or abnormal function could be one of the important mechanisms of tumor development, and may become a new potential therapeutic target for neoplasms.

Objective To present the development of the Naming test tool ( Huashan Naming Test, HNT)for Chinese cultural and by amnestic mild cognitive impairment ( aMCI ) and mild Alzheimer' s disease (AD) between the detection of memory decline,and to analyze the validity of its trial.Methods 100 normal elders from communities in Shanghai, 100 patients with amnestic mild cognitive impairment (aMCI), and 95 patients with mild Alzheimer's disease (AD) who received an education of junior high school or above and were evaluated by neuropsychological tests including mini mental state examination ( MMSE), auditory verbal memory test, Huashan Naming tests etc.8 cognitive tests.The groups of MCI and AD patients finished cranial MRI.100 items with HNT including 20 animals,10 vegetables,10 fruits ,20 tools ,20 household , 10 vehicles, 10 stationery.Results 1.HNT items to determine: 22 items were excluded due to the completion of the three groups were not significantly different; 8 items were excluded due to the completion of the normal elderly group was lower than 75%; 10 items were excluded from the analysis of variance Fvalue of the minimum value.The remaining 60 items,according to the size of the arrangement and completion rates were divided into two versions of odd and even, respectively HNT-Ⅰ and HNT-Ⅱ.2.HNT characteristics:in normal elderly group age, sex were found to had no significant factors affecting overall scores of HNT-Ⅰ and HNT-Ⅱ but level of education, MMSE score was significantly correlated (P ＜0.05).As cut-off score ≤ 26 for spontaneous naming of HNT,the sensitivities of HNT-Ⅰ for aMCI ,mild AD were 44%, 84% respectively, specificities were all around 84%; the sensitivities of HNT-Ⅱ for aMCI , mild AD were 56% ,83% respectively,specificities were all around 80%.Conclusion HNT is a Chinese cultural background,time-consuming short and good name validity test,and it is worth further promoting the application.

Objective To study the expression of S1RT1 in breast cancer with diabetes mellitus,and analyze the correlation between SIRT1 and p53,and analyze blood lipid differences in breast cancer tissue without diabetes mellitus and breast cancer tissue with diabetes mellitus,and to research its relation with type 2 diabetes mellitus and assesse the clinical value.Methods Immunohistochemistry was used to examine the expressions of SIRT1 and p53 in 30 breast cancer patients with diabetes mellitus and 30 breast cancer patients without diabetic mellitus,and their correlation was analyzed.Results The positive rate of SIRT1 in breast cancer tissue with diabetes mellitus was significantly lower than that in breast cancer tissue without diabetic mellitus(P ＜0.05).In SIRT1 positive tissue,the expression level of p53 was significantly higher than that in SIRT1 negative tissue(P ＜ 0.05 ).The expression of SIRT1 was significantly positively related with p53 expression in breast cancer tissue with diabetes( P ＜ 0.05).BMI and TG in breast cancer group with diabetes mellitus were significantly higher than those in breast cancer group without diabetic mellitus( P ＜ 0.05 ),but HDL was lower( P =0.05 ).However,CHO and LDL had no significant differences in both groups( P ＞0.05 ).Conclusions SIRT1 is up-regulated in breast cancer,but the posltive rate of SIRT1 in breast cancer tissue with diabetes mellitus is significantly lower than that in breast cancer tissue without diabetic,and is associated with the progression of diabetes mellitus.SIRT1 protein is significantly positively correlated to p53 expression and it may be involved in the adjustment process of blood lipids,SIRT1 might be a new biological target in diabetes and breast cancer.

Objective Through establishing a rat model of atrial fibrillation,to study myocardial angiotensin type Ⅰ (AT1R) and type Ⅱ receptor (AT2R) mRNA expression levels in of the state atrial fibrillation and Artemisia annua extract on its expression.Methods Rat model of atrial fibrillation was established,Artemisia annua extract was used for intervention and captopril was adopted as controls.AT1R,AT2R mRNA and protein expression were observed by PCR and Western-blot technology.Results Compared with the control group (0.36±0.05),myocardial AT1R mRNA expression was significantly increased in the model group (0.84±0.04) (P＜0.05).BothArtemisia annua (0.56±0.03) and captopril (0.53±0.04) could significantly reduce the myocardial AT1R mRNA expression in the atrial fibrillation rats (P＜0.05).Captopril showed obvious AT1R mRNA reduction trend,but there was statistical significance compared with Artemisinic extract (P＞0.05).Artemisinic extract showed no impact on AT2R mRNA expression.Conclusion AT1R was closely related to the incidence of atrial fibrillation.AT1R expression was significantly increased in atrial fibrillation rat.The artemisinic extract can be effectively reduced fibrillation myocardial AT1R expression,which may link with its artemisinic antiarrhythmic mechanism.

Objective To explore the effects of cognitive behavioral therapy and citalopram on regional cerebral blood flow(rCBF)in the patients with depression disorder.Methods 38 patients with depression disorder were divided into the cognitive behavioral therapy group(n=18),and citalopram group(n=20).The rCBF changes and scores of Hanmilton Depression Scale(HAMD)of all patients in two groups were evaluated with 99Tcm-ECD single photon emission computed tomography(SPECT)and HAMD before and after treatment.Results After treatment,the symptoms of all patients in two groups improved,but the cases of the citalopram group got a rapid improvement compared with those of the cognitive behavioral therapy group.Both of two methods could increase blood flow in right basal ganglion;while,the blood flow also increased in right limbic system in the cognitive behavioral therapy group,and in right temporol lobule in the citalopram group.Conclusion Both cognitive behavioral therapy and citalopram are effect on symptoms of depression disorder,but affect blood flow in different parts.

Objective To investigate the influence of ionic strength on the stability of the methotrexate-loaded dendrimer nanoparticles. Methods The influences of different ions (Na+,Cl-) and different concentrations of sodium chloride on the stability of the nanoparticles were studied. The particle size was measured by dynamic light scattering(DLS) and drug-loading content was determined by high-performance liquid chromatography (HPLC) in order to evaluate the stability. Results The Cl- was finally verified to play an important role in stabilizing the nanoparticles and the effective concentration of the sodium chloride was recommended to be below 1. 80% . Conclusion The recommended concentration (less than 1. 80% ) of the sodium chloride significantly improves the stability of the nanoparticles and benefits for long term storage.