Adult ; Aspergillosis ; diagnosis ; etiology ; Diagnostic Errors ; Humans ; Lung Diseases, Fungal ; diagnosis ; etiology ; Male ; Silicosis ; diagnosis ; microbiology ; Silicotuberculosis ; diagnosis ; etiology ; Tuberculosis, Pulmonary ; diagnosis ; etiology

Objective To observe the effect of rosuvastatin and memantine on EPC and learning or memory ability in VaD rats .Methods Forty adult male SD rats were randomly divided into sham operation group ,VaD model group ,memantine treatment group ,rosuvastatin treatment group , and memantine+rosuvastatin treatment group (combined treatment group) (8 in each group) .A VaD model was established by permanent ligation of bilateral common carotid arteries .The ani‐mals in rosuvastatin treatment group ,memantine treatment group and combined treatment group received gastric rosuvastatin 10 mg/(kg · d) ,memantine 10 mg/(kg · d) and memantine 10 mg/(kg · d)+rosuvastatin 10 mg/(kg · d) for 4 weeks while those in model group received gastric normal saline .Five weeks after operation ,the learning or memory ability was tested by Morris water maze test ,the escape latency and percentage of target quadrant were calculated ,the circulat‐ing EPC were detected by flow cytometry ,and the MVD in hippocampaus was assyed with vWF immunostaining .Results Five weeks after operation ,the learning or memory ability was signifi‐cantly lower in model group than in sham operation group (P< 0 .01) whereas the learning or memory ability ,the percentage of circulating EPC and the MVD in hippocampus were significantly higher in 3 treatment groups than in model group (P<0 .05) .Conclusion Rosuvastatin and me‐mantine can effectively improve the learning or memory ability of VaD rats by mobilizing their cir‐culating EPC and increasing the MVD in their hippocampus .However ,the effect of memantine or rosuvastatin does not differ greatly w hen they are used alone .

Objective To investigate the role of NFIC on the stimulation effects of cAMP-induced differentiation of stem cells from the apical papilla ( SCAPs) in vitro. Methods SCAPs isolated from dental papilla of human imma-ture third molars were cultured by enzyme digestion. SCAPs were transfected with lentivirus that overexpressed NF-IC gene ( ov-NFIC) or an empty vector ( LV-empty) and co-treatment with Forskolin. Mineralized nodule formation of each group was measured by alizarin red staining. Quantitative real-time reverse-transcription polymerase chain reaction was performed to test the expressions of RUNX2,ALP,OCN mRNA. Results Forskolin increased the ex-pression of Runx2, ALP, OCN mRNA as well as matrix mineralization in SCAPs, and the stimulation effects of For-skolin were enhanced by overexpressing NFIC gene. Conclusion The results indicate that NFIC can promote cAMP-induced differentiation of SCAPs.

Objective To explore the effects of vitrectomy on neovascular glaucoma combined with vitreous hemorrhage. Methods Seven eyes of 7 patients with neovascular glaucoma combined with vitreous hemorrhage underwent vitrectomy combined with phacoemulsification, panretinal photocoagulation, and trabeculectomy. The preoperative visual acuity ranged from light perception to 0.2, and the mean preoperative intraocular pressure was 54 mm Hg (38-64 mm Hg)(1 mm Hg=0.133 kPa). The mean follow-up was 8 months (6-15 months). Results The postoperative visual acuity ranged from light perception to 0.4, and the mean postoperative intraocular pressure was 17 mm Hg (10-30 mm Hg) which was significantly lower than preoperative one ( P

Objective To probe the effect of nursing interventions on depression of patients with acute stroke.Methods 72 cases of stroke patients with depression screened by Hamilton depression scale (HAMD)were divided into the intervention group and the control group with 36 cases in each group.The control group received routine treatment.The intervention group wag given nursing intervention based on routine treatment.The effect was assessed before and after 3,6 and 12 months of intervention with Zung self-rating depression scale(SDS)and improved Rankin scale(MRS). Results The value of SDS after 3,6 or 12 months was significantly lower than that of the control group(P＜0.05),and the value of MRS was significantly higher than that of the control group(P＜0.05).Conclusion Nursing intervention can reduce depression in patients with post-stroke depression.

Objectives To determine the significance of serum total bile acid (TBA) in the diagnosis and treatment of infantile hepatitis syndrome. Methods Serum TBA and other liver function related items were determined with automatic enzymatic assay techniques in 67 with infantile hepatitis syndrome patients (age 26 days～7 months) and 100 normal infants (age 20 days～1 year). Results In the control group, the serum TAB level was 0～11.3 ?mol/L. TBA level was abnormal in 89.5% patients and the values were 0.5～226.0 ?mol/L ?s =(79 5?54.3) ?mol/L]. The difference was significant between the two groups. The TBA levels were well related to those of ALP, DBIL and ? GT and TBA was better than others in sensitivity and specificity. . The difference was significant between the two groups. The TBA levels were well related to those of ALP, DBIL and ? GT and TBA was better than others in sensitivity and specificity. Conclusion Serum TBA level is important in evaluating the diagnosis, treatment, and prognosis of infantile hepatitis syndrome.

Objective To study the effect of poly- DL- lactic acid (PDLLA) absorbable membrane on preventing adhesion after repair of peripheral nerve injury. Methods 60 SD rats were divided into 2 groups randomly: the suturing+ PDLLA group (experimental group) and the purely suturing group (contrast group), with 30 rats in each group. Their sciatic nerves were cut off and then sutured microsurgically. In the experimental group, the anastomotic stoma was encapsulated with PDLLA membrane; in the contrast group, there was no such a treatment. We conducted gross observations and histological examinations at 2, 4, 8, 12, and 16 weeks after operation, neural electrophysiological examinations at 12 and 16 weeks after operation, and image analysis by computer at 16 weeks after operation. Results The scar proliferation and adhesion near the anastomotic stoma in the experimental group were less extensive than those in the contrast group; regenerative nerve fibers grew more straight and orderly manner. Electrophysiological examinations and image analyses by computer also showed that the experimental group achieved better results than the contrast group. Conclusion Poly- DL- lactic acid (PDLLA) absorbable membrane can prevent scar proliferation and adhesion after repair of peripheral nerve and promote nerve functional recovery effectively.

Objective To reveal the hepatitis A vaccine (HepA) coverage among pre-school children in Shandong province before Hepatitis A vaccine was introduced to the EPI and to provide evidence for improving the strategy for hepatitis A control.Methods A cross-section survey was conducted among children aged between 2 and 6 years old in Shandong province in March 2008.The study population was selected by random sampling method and HepA immunization history was obtained by immunization record or recall.Results 78.90% had received one dose of HepA at least.The coverage rate decreased with age and the differences in three age groups were statistically significant (x 2 =11.54,P=0.02).The coverage rates among the boys and girls were 77.67% and 80.30% respectively,the difference was not significantly(x 2 =1.17,P=0.28).The HepA coverage rates among the children living in the eastern areas and in the richer areas were higher than the centrale and western areas and poverty areas,the difference has statistic significance (x 2 =27.25,58.17,P

Objective To investigate the value of improving the prediction accuracy of near-term risk for developing breast cancer by transforming the original mammography image and fusing the different types of image features using the algorithm of machine learning.Methods The craniocaudal (CC) full-field digital mammography (FFDM) of 185 women were downloaded from the clinical database at the university of Pittsburgh medical center.Firstly,the original gray images were segmented and transformed into virtual optical density images.Then the asymmetry features were separately extracted from original gray images and virtual optical density images.Two decision tree classifiers of the first stage were trained based on the features extracted from two types of image.And the scores output from the two classifiers were used as input to train the second stage of one decision tree classifier.Leave-one-case-out method was used to validate the prediction performance of near-term risk of breast cancer.Results Using two-stage decision tree fusion method to predict breast cancer,the area under the ROC curve (AUC) was 0.9612±0.0132.And the sensitivity,specificity and prediction accuracy were 96.63％(86/89),91.67％(88/96) and 94.05％(174/185).Conclusion The features extracted from virtual optical density image have higher discriminatory power of predicting breast cancer.Fusing the two kinds of image features twice by two-stage decision tree method can help to improve the prediction accuracy of near-term risk of breast cancer.

Yersinia pestis,host animals and vector organisms in a particular area within a certain geographical landscape,and biological communities are in the form of interdependence and mutual restriction of ecological system in the plague natural foci of plague.Currently,the preservation of Yersinia pestis mechanism mainly including:①Animal and fleas (tick) preservation theory;②Yersinia pestis own mutation preservation theory;③Fleas-host-fleas preservation theory;④Theory of soil preservation;⑤the birds and abiotic factors of preservation theory;⑥Theory of other Yersinia preservation theory and so on.The author summarized the research progress of the preservation mechanism of Yersinia pestis in the focus area.