Objective To study the relationship between P16,CyclinD1 and P53 anti-oncogene and the gen- esis of hydatidiform mole.Methods 30 samples of hydatidiform moles and normal early pregnant aborted placenta villi respectively were obtained to detect the P16,CyclinD1 and P53 anti-oncogene expression in two kinds of tissues by using SP immunohistochemical staining.Results Compared with that of normal villi,the expressions of P16,P53 and CyclinD1 anti-oncogene were quite different in hydatidiform moles.The expression of P16 was all positive,while CyclinD1 and P53 were all negative in the chorion of early gestation.A descending tendency of P16 expression was found,while the expression of CyclinD1 showed an ascending tendency.The positive rate of P16,CyclinD1 and P53 expression was significantly different between the groups.It was also observed that there was significant difference between the P16 and the proliferation trophocyte.Conclusion P16,CyclinD1 and P53 anti-oncogene have a close relationship with the genesis of human hydatidiform mole.

OBJECTIVETo investigate clinical effects and mechanism of Tangweikang (TWK) in treating diabetic gastroparesis.

METHODSNinety diabetic gastroparesis patients were randomly assigned to 3 groups. Besides conventional hypoglycemic treatment, the 30 patients in the treated group were given TWK and the 30 in the control group were given Domperidone additionally, while to the 30 in the blank group, no additional drug was given. The clinical efficacy and the changes in level of motilin and gastric emptying rate were observed.

RESULTSTWK showed significant effects in improving clinical symptoms of patients, increasing gastric emptying rate, promoting gastrointestinal kinetics, shortening gastric emptying time and was beneficial to the control of blood sugar, including the 2 h post-prandial blood sugar and fructosamine. The curative rate and total effective rate in the treated group were 63.33% (19/30) and 93.33% (29/30) respectively, significantly different to those in the control group 26.67% (8/30) and 63.33%, also different to those in the blank group 23.33% (3/ 30) and 10.00%, respectively (P < 0.01). The clinical efficacy in the treated group was superior to that in the other two groups.

CONCLUSIONTWK has favorable therapeutic efficacy in treating DGP.

Aged ; Antiemetics ; therapeutic use ; Diabetes Complications ; drug therapy ; Domperidone ; therapeutic use ; Drug Therapy, Combination ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Gastroparesis ; drug therapy ; etiology ; Humans ; Male ; Middle Aged ; Phytotherapy ; Treatment Outcome

Objective To report a peliosis hepatic in child and review literature and discuss.Methods Case history was inquired.Physical,labtoratory,imagement and histopathology of liver biopsy(HE staining) were examed.Results A 4-year old girl appeared dermatitis with erythema and herpes at local skin where was bit by insect before onset.The girl appeared fever,cough,then abdominal pain,hepatomegaly,pleural effusion and ascites.Lab examination revealed slight elevation of aspartate transaminase,?-glutamyltranspeptidase and alkaline phosphatase.The liver B-mode ultrasonography and CT scan revealed hepatomegaly with density heterogeneity of the parenchyma.The liver biopsy revealed many small capsule filled with blood cells.Conclusions Clinical characteristics of the disease are fever,upper abdomen pain,janundice,ascites and hepatomegaly.The diagnosis shall be combined with the pathologic biopsy of liver.

OBJECTIVETo study the sub-health status in college students in relation to health-related risk behaviors.

METHODSUsing convenient sampling method, 6176 college students (3285 male and 2891 female students) were surveyed with questionnaires for general demographical data, sub-health state and health-risk behaviors.

RESULTSThe reported rate of sub-health state was 10.2%. The reported rate of physical sub-health was 11.7%, and the rate was 21.7%, 13.9% and 15.0% for inadequate physical activities, poor physical function and poor immunity, respectively. The reported rate of psychological sub-health was 10.5%, with a rate of 14.7%, 22.6% and 7.3% for emotional problems, behavioral problems and social adaptation difficulties, respectively. The risk factors for college students included insufficient sleeping, inadequate sport activities, missing breakfast, partial dietary, smoking and drinking (P<0.05).

CONCLUSIONThe reported rate of sub-health is rather high. Early intervention for health-related risk behaviors should be conducted to prevent the incidence of sub-health among college students.

Adult ; Female ; Health Behavior ; Health Status ; Humans ; Life Style ; Male ; Risk Reduction Behavior ; Students ; psychology ; Surveys and Questionnaires ; Universities ; Young Adult

Biodiesel fuel produced with the enzyme-catalyzed esterification and transesterification of high acid value waste oil through ultrasonic assistant was explored. Propyl oleate, biodiesel, converted from high acid value waste oil and 1-proponal catalyzed with immobilized lipases from Candida antarctica and Aspergillus oryzae in conditions of ultrasonic assistant. Commercial immobilized lipase Novozym 435 from C. antarctica was used as biocatalyst catalyzing high acid value waste oil and 1-proponal esterification and transesterification to propyl oleate under the ultrasonic assistant conditions and different conditions such as lipases amounts, initiatory molar ratio of propanol to oil, frequency of ultrasonic and power of ultrasonic were investigated and optimized. It is revealed that the enzymatic activity of Novozym435 is enhanced and, in particular, enzyme-catalyzed transesterification activity is enhanced obviously under the ultrasonic assistant conditions. Low frequency and mild energy ultrasonic is a key factor for enhancing enzymatic activity, emulsifying oil-propanol system and accelerating the speed of produce diffusing in the system. Under the optimal ultrasonic assistant reaction conditions, such as Novozym435 amounts 8% by oil quantity, initiatory molar ratio of propanol to oil 3:1, frequency of ultrasonic 28 KHz, power of ultrasonic 100 W and temperature of water batch 40-45 degrees C, the conversion ratio to propyl oleate reached to 94.86% in 50 mins in comparison with the highest conversion ratio to propyl oleate 84.43% under the conventional mechanical agitation conditions. Furthermore, it is demonstrated that various short chain linear and branched alcohols (C1-C5) show high conversion ratio to fatty acid alkyl esters (biodiesel) under the optimal ultrasonic assistant reaction conditions. On the other hand, ultrasonic energy is propitious to reduce the adsorption of product propyl oleate, by-product glycerol and other emplastics in system on the surface of immobilized lipase Novzym435 and recyclable Novozym435 possess clean appearances, well decentralizations, no agglomeration and easy washing and well operational stability.
Bioelectric Energy Sources ; Catalysis ; Esterification ; Gasoline ; Lipase ; chemistry ; Ultrasonics ; Waste Disposal, Fluid ; methods

To compare the effects of inoculated or non-inoculated with arbuscular mycorrhizal (AM) fungi on the steroidal saponin component in root of Paris polyphylla var. yunnanensis. By pot experiments, steroid saponin component in root of P. polyphylla var. yunnanensis was determined and compared by HPLC. The results showed there was difference in the effects of different AM fungal on the secondary metabolite steroid saponin in P. polyphylla var. yunnanensis. After elicitors treatment, AM fungal did not change the chemical backgrounds of P. polyphylla var. yunnanensis, but can improve partly the content of chemical compositions in roots. In conclusion, there was selectivity between AM fungal and P. polyphylla var. yunnanensis. Glomus intraradices was the most appropriate strain for inoculation P. polyphylla var. yunnanensis.
Liliaceae ; chemistry ; microbiology ; Mycorrhizae ; growth & development ; Plants, Medicinal ; chemistry ; microbiology ; Rhizome ; chemistry ; microbiology ; Saponins ; metabolism

To clear the effect of the wound to the growth of the larva of the host to the Ophiocordyceps sinensis, the wounds of same severity at the same position were made artificially to the larva and which were artificial fed at the same environment and condition. The results indicated that, over the winter, the survival rate of the wounded of the infection larva was lower than that of the healthy larva, but the weight had no significant difference between the wounded and the healthy larva. The survival rate of the wounded of the no infection larva was lower than that of the healthy larva, but except with black skin, the wounded larva with offwhite and dusty red had no influence on the variety of the weight. In summery, wound had no advantage to the survival rate, but had no influence to the weight. The result had provided theoretical basis to the reforming of the system of the artificial culture O. sinensis.
Animals ; Body Weight ; Breeding ; methods ; Hypocreales ; growth & development ; Larva ; Moths ; growth & development ; microbiology

Background Visual impairment influent the life quality of patient and bring about the economical burden to their families and society.Epidemiology survey of the prevalence and main causes of visual impairment is the basis of the prevention of blindness.Objective The goal of this survey was to investigate the visual impairment in the subjects aged 40 years or older living in Shunyi district and assist in the design of intervention programs.Methods A cross-sectional survey was performed in this study.Cluster sampling was used to randomly select 4549 individuals aged ≥40 years in Shunyi district,and visual impairment was evaluated based on WHO criteria and analyzed based on the 10-year interval groups.The questionnaire,best corrected visual acuity (BCVA)and comprehensive eye examination were provided for eligible residents.To evaluate the independentassociation of significant sociodemographic variables with visual impairment,a regression model was constructed including age,sex and education level.This study was approved by the Ethic Committee of Peking University Medical Department.Written informed consent was signed by each subject before any medial survey.Results A total of 4167 subjects participated in this survey with the response rate of 91.6％.The age of the subjects ranged from 40-94 years(mean:56.61±11.10 years).The numbers of visual impairment was 161 with the prevalence 3.9％.Trend x2 test showed that the number and percentage of visual impairment were elevated as the increase of age,showing a significantly difference among different age groups(x2 =159.487,P＜0.01).The prevalence rate of visual impairment in 70 and older group was 15 times more than that of 60-69-year-old group(OR =0.114,95％ CI:0.056-0.234).No significant difference was found between gender and prevalence of visual impairment(OR =0.901,95％ CI:0.627 -1.295).The prevalence rate of visual impairment in illiterate group was 5.5 fold more than that of educated group (OR =2.743,95％ CI:1.830-4.111).Conclusions Ageing and low education degree are the important factors of visual impairment.Education attainment is an independent protective factor of visual impairment.

Background There are no noticeable symptoms in early stages of diabetic retinopathy(DR)and the detection of presymptomatic DR remains challenging. Therefore, data on the prevalence and progress of DR will help in prevention and treatment programs in China. Objective This study was to survey the prevalence and risk factors of diabetic retinopathy( DR ) in a population aged 40 years or older in the Shunyi district of Beijing city.Methods A cross-sectional study was designed. Cluster sampling was used to randomly select 4167 (91.6%)individuals aged ≥40 years in 24 clusters in the Shunyi district of Beijing city in China. The Questionnaire data,including general information, living habits, present history, past history, family history, education level etc., were obtained from each subjects. The height, body weight and blood pressure were examined, and slit-lamp examination, direct ophthalmoscopy,indirect ophthalmoscopy and nonmydriatic fundus photography were performed during the study duration. Diabetic mellitus (DM)was diagnosed and graded according to the criteria of Early Treatment Diabetic Retinopathy Study Research Group(ETDRS). The associated factors with DR were analyzed byx2 test,trend x2 test,and multivariate Logistic regression analysis. This protocol was approved by the Ethic Committee of Peking University. Informed consent was obtained from each individual prior to the survey. Results A total of 4167 ( 91.6% )individuals were examined from the 4549 samples with a response rate of 86. 4%. This study showed a prevalence of 29. 2% for DR, 5.4% for sight-threatening diabetic retinopathy ( STDR), and 1.3% for prolifrative retinopathy (PDR) in type 2 DM subjects. Of the type 2 DM subjects,0. 4% (4/445)had social blindness( VA＜0. 1 ) ,and 6. 3% (28/445) presented with visual impairment (VA ＜ 0. 3 )in bilateral eyes. Univariate Logistic regression analysis indicated that insulin therapy ( P = 0.011 ) and lower body mass index ( BMI, kg/m2 ) ( P = 0. 022 ) appeared to be significantly associated with DR, and the multivariate Logistic regression analysis demonstrated that longer duration of diabetes( P＜ 0. 01 ) , increased fasting glucose ( P ＜ 0.01 ) and lower education level ( P = 0. 031 ) were significant independent predictors of DR. Conclusion The prevalence of DR is lower among diabetic Chinese aged ≥ 40 years than those of matched population in Western countries. Lower BMI and insulin therapy were the significantly associated factors of DR, and a longer duration of disease and higher fasting glucose level are independent risk factors of DR. Education attainment is important for the DM patients as a protective factor of DR.

OBJECTIVETo develop and evaluate the efficiency of air purification and sterilization instrument based on nano-sized TiO(2) photocatalytic technique.

METHODSThe nano-sized TiO(2) photocatalytic air purification and sterilization instrument was designed and a sample had been prepared. The sterilization efficiencies for E.coli and Klebsiella by the nano-sized TiO(2) photocatalytic instrument and ultraviolet (UV) were measured in closed labs. The on-site efficiency of the instrument was evaluated, too.

RESULTSThe nano-sized TiO(2) photocatalytic air purification and sterilization instrument was composed of five units: rough filter, nano-sized TiO(2) photocatalytic unit, activated carbon fiber filter, negative ion generator, and programmed control unit. The E.coli killing rates by the nano-sized TiO(2) photocatalytic instrument were 76.0%, 81.8%, 77.5%, and 80.7% at 30, 60, 90, and 120 minutes, respectively. There was no significant difference between the E.coli killing rates of the instrument and UV (P > 0.05), except the 120 minutes timepoint. The Klebsiella killing rates by the instrument were 78.4%, 79.5%, 67.3%, and 58.5% at 30, 60, 90, and 120 minutes, respectively. The Klebsiella killing efficiencies of the instrument at 30 and 60 minutes were better than that of UV (P < 0.01). There was no significant difference between the Klebsiella killing efficiencies of the instrument and UV (P > 0.05).

CONCLUSIONThe air sterilization efficiency of the nano-sized TiO(2) photocatalytic instrument should be equivalent or better as compared with the UV. This instrument might be used for the air purification and sterilization of the public locations.

Air Pollution ; prevention & control ; Decontamination ; methods ; Disinfection ; methods ; Nanostructures ; Photochemistry ; Titanium