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

The article analyzes the problems of nurse-patient communication in nurse interns,and proposes the strategies of cultivating nurse-patient communication ability to reduce nurse-patient disputes and improve the overall quality of nursing students.

Objective:To introduce the experience and clinical efficacy of a new type of negative pressure suction ureteroscope in the treatment of upper ureteral calculi, and compare it with traditional rigid ureteroscope and flexible ureteroscope lithotripsy.Methods:From January 2018 to January 2020, 160 patients with upper ureteral incarcerated calculi who were treated in Shengjing Hospital Affiliated to China Medical University were included in this study, and their clinical data were retrospectively analyzed.There were 50 cases in the rigid ureteroscope group, 54 cases in the flexible ureteroscope group and 56 cases in the new negative pressure combined ureteroscope group.The differences of operation time, hospital stay, stone free rate and postoperative complications were observed and compared among the three groups.According to whether the maximum diameter of the stone is more than 1.5 cm, the subgroups were analyzed to further compare the curative effect of the three groups.Results:All the 160 operations were completed successfully and none of them were converted to open surgery.The stone free rate of the new negative pressure suction ureteroscope Group (90.0% (18/20))was higher than that of the flexible ureteroscope Group (61.9% (13/21)) and the rigid ureteroscope Group (55.6% (10/18)), χ 2=8.49, P<0.001). The stone free rate in the first month after operation was also superior (96.4% (54/56), 77.7% (42/54), 74.0% (37/50), χ 2=5.48, P=0.01). The stone subgroup analysis showed that when the stone diameter increased (>1.5 cm), the net stone rate of the new negative pressure suction ureteroscope Group [91.6% (22 / 24)] was better than that of the flexible ureteroscope Group (62.5% (15/24)) and the rigid ureteroscope Group (50.0 (8/16))(χ 2=6.480, P=0.001). Conclusion:Compared with the traditional ureteroscopic lithotripsy, the new negative pressure suction ureteroscopic lithotripsy has higher initial and overall stone free rate, and higher safety factor.For the patients with stone diameter>1.5 cm, the new negative pressure suction ureteroscope lithotripsy has more advantages.

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.

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 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 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 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.

Objective To explore the incidence and predisposing factors of coronary heart disease (CHD) among the patients with different types and extent of calcified valvular heart disease (CVHD). Methods 574 patients with CVHD diagnosed by echocardiography were divided into mild and severe groups based on the hemodynamic changes. The differences of incidence and predisposing factors of coronary heart disease between the two groups were compared. Results Ninety-seven cases of CVHD were categorized as having severe lesion, including aortic stenosis subgroup (AS group), aortic insufficiency subgroup (AI group) and mitral valve subgroup (MV group). All other patients were having mild lesions. There was no significant difference in blood pressure, blood lipid, fasting blood glucose, age and incidence of CAD, incidences in hypertension, hyperlipidemia and diabetes mellitus between two groups. Conclusions Mild CVHD showed similar prognostic value as that of severe CVHD, therefore it should not be ignored.