Objective:To observe expressions of vascular endothelial growth factor (VEGF ) and placental growth factor (PLGF) in patients with hypertensive disorder complicating pregnancy (HDCP) during early and mid pregnancy ,and pro‐vide basis for diagnosing HDCP .Methods:A total of 46 normal pregnant women (normal pregnancy group ) and 39 HDCP patients (HDCP group) were enrolled .The HDCP group was further divided into gestational hypertension group (n=26) , mild preeclampsia group (n=8) and severe preeclampsia group (n=5) .Enzyme linked immunosorbent assay (ELISA) was used to measure serum VEGF and PLGF levels during early ,mid and late pregnancy ,and those were compared among a‐bove groups .Results:Compared with normal pregnancy group ,there were significant reductions in serum levels of VEGF [ (187.54 ± 17.36) ng/L vs .(123.35 ± 16.46) ng/L] and PLGF [ (217.49 ± 26.32) ng/L vs .(128.32 ± 21.23) ng/L] in HDCP group during mid period (24th week) , P<0. 01 all ,and serum VEGF and PLGF levels more significantly reduced during late pregnancy (34th week) (P<0.01);in HDCP group ,compared with gestational hypertension group and severe preeclampsia group ,PLGF level [(127.46 ± 16.55) ng/L ,(158.40 ± 26.33) ng/L vs .(99.02 ± 27.26) ng/L] significantly reduced in mild preeclampsia group on 24th week;the serum VEGF and PLGF levels more significantly reduced on 34th week , P<0. 05 or <0. 01 . Conclusion:Reduced serum levels of VEGF and PLGF during mid pregnancy in HDCP patients are help to early diagnosing HDCP .

Objective 　To explore the relationship between psychosocial factors and risk of vascular dementia. Methods　A cohort study of people 55 years old and over were followed up 10 years after a baseline screening. 5055 older subjects in Shanghai were stratified and cluster sampled from community. Information about psychosocial factors was collected during the baseline screening with an interview in 1987. The clinical diagnosis of dementia and vascular dementia (VD) were made according to DSM-Ⅲ-R and Hachinski Ischemic Score (HIS). In 1997,the elders who were not having dementia in 1987 were surveyed; Clinical diagnosis terms of that was made in above mentioned criteria. Then we analyzed the relationship between the psychosocial factors and VD in community elderly population by means of Logistic regression and estimated the incidence of VD.Results　1203 subjects were re-surveyed in 1997 and among them 124 new cases of dementia including 36 cases of VD were identified. By calculating the relative risk (RR) of psychosocial factors to the VD, we found that several psychosocial factors were correlated with the VD including not taking group activities, unsatisfying life, negative life events and depression (RR＞1). ADL total score are also good predictive points for VD.Conclusions　Psychosocial factor may play an important role in the vascular dementia developed.

Objective To evaluate the effect of chemoradiotherapy for stage Ⅲ non small cell lung cancer (NSCLC). Methods From January 1995 to December 2000, 132 patients with stage Ⅲ NSCLC were randomized into two groups: radiotherapy alone group (RT, 65 patioents), treated by conventional fractionation to a total dose of D_T 60?Gy～70?Gy/6 w～7 w; Chemoradiotherapy group (CRT, 67 patients), with chemotherapy given concomitantly or alternately with RT for at least 2 courses. Results Complete response rates of RT and CRT group were 14% and 27%, respectively. Disease progression rates of the two groups were 18% and 13%. The 1-,3-and 5-year survival rates were 62.1%, 22.7%, 9.3%and 52.7%, 9.3%, 6.9% in CRT and RT groups(P

Objective To study the rule of dynamic change of cognitive function in community elderly and predicting for dementia through using items of MMSE. Methods A 10 year follow up of cognitive function survey was carried out in the non dementia old people using Chinese version Mini Mental State Examination(MMSE). The elder people were divided into two groups (dementia group and non dementia group) according to the DSM Ⅲ R diagnostic criteria 10 years later. Results (1) A total of 1 192 subjects completed all data sheets by two surveys and 124 cases(10 4%)were identified in the second survey 10 years later. (2)Almost all the baseline item scores and its change of MMSE of the dementia group were higher than that of the non dementia group. (3)Orientation of time, serial subtration by seven, reading items of MMSE were effective predictors for the dementia, resding and orientation of time were significant predictors for Alzheimer's disease through logistic regression model. Conclusions The item analysis of MMSE is important information for the epidemiological research.

Aim To investigate antiaging effects of beta-carotene(?-C) from dunaliella salina on fruit flies and rats and to probe possible mechanisms.Methods The whole study contains fruit flies experiment and rats experiment.In the fruit flies experiment,fruit flies were divided into nine groups according to different ingredient in the nutrient medium.We took life span,flight capability,the number of copulatory fruit flies aged 8 days,and head MDA content of fruit flies aged 40 days as indexes of aging.In rats experiment, 54 aged male rats were divided randomly into 6 groups and bred for 45 days with different diet.Plasma MDA,CAT and GSH-Px were detected.MDA,SOD and GSH-Px in heart,liver,pulmo,lien and brain were also detected.Results Compared with control group in fruit flies experiment,the shortest life span,maximum life span and mean life span were increased in each experimental group.Flight rate and flight frequency were increased,the number of copulatory fruit flies was also increased.The content of MDA was significantly decreased.In rats experiment,plasma MDA content was significantly decreased.The activity of GSH-Px was elevated.Similar results were obtained in different tissues.MDA content was significantly decreased in each tissue sample,while activities of SOD and GSH-Px were significantly inceased.Conclusion ?-C from dunaliella salina had antiaging effects on fruit flies and aged rats.The possible mechanism resided in its antioxidative effects owing to the elevated antioxidases.

Objective To study the relationship between the expression of inducible nitric oxide synthase(iNOS)and neural cell apoptosis after chronic cauda equina compression. Methods Totally 30 male adult SD rats were randomly divided into 2 groups as the control group and the experi?mental group. The control group received sham operation with single laminectomy of L5 lumina. In the experimental group,the silicon sheet was in?serted into the spinal canal of L4 to cause single level compression of cauda equina. The L4 level of spinal cords were harvested at 2 weeks,4 weeks,8 weeks,and 12 weeks after operation in the experimental group,and at 4 weeks in the control group respectively,and then immunohistochemistry and image analysis were performed to observe the expression of iNOS in spinal cord and the TUNEL method was applied to observe cell apoptosis. The morphology of cells was observed by transmission electron microscope. Results There was few amount of iNOS expressed in the control group. The expression of iNOS was slight at 4 weeks in the experimental group and was higher at 8 weeks and 12 weeks compared with the control group. Small amount of neural cell apoptosis was evidenced in the control group,while neuron apoptosis appeared remarkably in the experimental group since 4 weeks and increased with the extension of time. Transmission electron microscopy found apoptosis changes in neurons in the experimental group. Conclusion The expression of iNOS increases in corresponding spinal cords after chronic compression of cuada equine and neural cell apoptosis oc?curs,indicating that iNOS is positively correlated with neural cell apoptosis.

ObjectiveTo investigate the feasibility of preventing tendon adhesion by using bFGF/ vitamin C composite biodegradable membrane.MethodsSixty Newzerland rabbits were divided into experimental and control groups randomly.After the animal model was established, the tendon autografts were encapsulated with the bFGF/vitamin C composite biodegradable membrane in experimental group, while no tendon autografts encapsulation in control.Three weeks after surgery, regular HE staining and AgNO3 staining were performed to observe the fibroblast nuclei and vitamin C.The quantity of collagen fibrils was measured by Luzex-F Image Analyzer.Eight weeks after surgery, the peritendinous adhesion and the maximum tensile load were analyzed.Results At 3 weeks after surgery, the numbers of vitamin C granules, fibroblast nuclei and collagen fibrils in the experimental group were significantly more than those in the control group(t = 11.78 ,P ＜0.001) .At 8 weeks after surgery, the peritendinous adhesion in the experimental group was significantly slighter than that in the control group(Z =3.922,P ＜0.005) ,and the maximum tensile load in the experimental group was significantly higher than that in the control group (t = 8.39, P ＜ 0.001) .ConclusionbFGF/vitamin C composite biodegradable membrane can stimulate the proliferation of fibroblasts and synthesis of collagen fibrils,improve the biomechanical property of tendon autografts and prevent the tendon adhesion.

In September 2012, the Assessment for Ethics Review of Traditional Chinese Medicine (TCM) Re-search with Human Participants (named CAP, Chinese medicine assessment human research protection system) was officially commissioned to the World Federation of Chinese Medicine Societies to organize by the State Ad-ministration of TCM. Through the assessment of 20 medical institutions, a comprehensive analysis on ethical re-view platform was conducted. Combined with current regulatory system of ethics in the U.S., this article discussed independent assessment on important CAP features of local brands, the practice and benefit of construction pro-motion based on assessment and continuous improvement, as well as the importance of vigorously promote CAP assessment .

Based on investigating the protection and possible mechanism of LC on acute hepatic injury in mouse induced by medicine,we discussed the procedure of scientific research and analyzed in detail the enlightenment in the experiment.

Diabetes mellitus is a metabolic diseases, mainly including type 1 and type 2 diabetes. Treatment for type 1 and part of type 2 often involves regular insulin injection. However, this treatment neither precisely controls the blood sugar levels, nor prevents the diabetes complications. Transplantation of islets of Langerhans offers an attractive strategy for diabetes therapies, but its wide application has been limited by donor shortage and immunological rejection after transplantation. Stem cells with strong proliferation capacity and multipotential may be potential cell sources in diabetes therapies. For this, adult stem cells are interesting because of absence of teratoma formation and ethnical problems. Adult pancreatic stem cells (PSCs) really exist and could produce insulin-secreting cells both under the condition of pancreatic injury and in vitro culture, but lack of effective markers to enrich PSCs hampers the studies of exploring the expanding and differentiating conditions in vitro. Some other adult stem cells, such as hepatic stem cells, marrow stem cells or intestine stem cells, were also suggested to transdifferentiate into insulin-producing cells under special culture conditions in vitro or by genetic modifications. Moreover, transplanting these adult stem cells-derived insulin-secreting cells into the diabetic mouse could cure diabetes. Thus, adult stem cells would supply the abundant beta-cell sources for cell replacement therapy of diabetes.
Adult Stem Cells ; cytology ; transplantation ; Animals ; Cell Culture Techniques ; Cell Differentiation ; Diabetes Mellitus ; therapy ; Insulin-Secreting Cells ; cytology