Objective To investigate the expression of mutant BRCA2 gene in human breast cancer tissue and its clinic-healing significance.Methods The expression of mutant BRCA2 gene in breast cancer tissues and adjacent non-cancerous tissues of 66 patients' samples was detected using immunofluorostainning(IFS)and the correlation between the expression of mutant BRCA2 and patient's clinic-pathological characteristic was analyzed.Results Among 66 patients' samples,87.8%(58/66)were up-regulated expression of mutant BRCA2 protein in breast cancer tissues and 12.2%(8/66)was no significant difference of the mutant BRCA2 expression between the cancer tissue and its corresponding adjacent noncancerous tissues.The label index(LI)of mutant BRCA2 gene was higher in the cases of breast carcinoma's later clinical stage,poor tumor differentiation grade,breast scirrhus carcinomas,infiltrative breast carcinomas and metastasis.Conclusion The overexpression of mutant BRCA2 gene in human breast cancer tissue is positively related to the breast carcinoma's clinical stage,tumor differentiation grade,the tumor pathological type and metastasis,and it may influence the healing therapy of the breast cancer patients.

Objective To investigate the expression of poly ADP-ribose polymerase-1(PARP-1) in human breast cancer tissue and its relationship with patient's prognosis related factors.Methods The expression of PARP-1 in breast cancer tissues and their adjacent non-cancerous tissues from resection in 66 operated cases were detected using RT-PCR and immunofluorecence staining(IFS).The relationship between the expression of PARP-1 and the prognosis related factors was analyzed.Results Compared with that of the adjacent non-cancerous tissues,the expression of PARP-1 mRNA increased in 94.9%(62/66) patients,while the expression of PARP-1 protein increased in 90.9%(60/66) ones.The label index(LI) and the expression index(EI) of PARP-1 gene increased especially in the cases in later clinical stage,with poor tumor differentiation grade,of pure breast carcinomas or infiltrative breast carcinomas and of metastasis.Conclusion The expression of PARP-1 in human breast cancer tissue on the level of transcription and translation increases,which may be positively related with the patient's prognosis.

This paper was aimed to study the dynamic changes of San-Ao(SA) decoction in different compatibility of ephedrine hydrochloride,pseudoephedrine hydrochloride,amygdalin and glycyrrhizic acid.HPLC was used to simultaneously determinate the transfer rate of SA decoction of ephedrine hydrochloride,pseudoephedrine hydrochloride,amygdalin and glycyrrhizic acid.Kromasil C18 (4.6 mm×250 mm,5μm) column was selected with methanol and 0.1% phosphoric acid as a mobile phase to gradient.The flow rate was 1 mL·min-1.The column temperature was 30℃.The injection volume was 10μL.Ephedrine hydrochloride,pseudoephedrine hydrochloride and amygdalin were detected at the wavelength of 208 nm.The glycyrrhizic acid was detected at the wavelength of 250 nm.The results showed that the transfer rate of ephedrine hydrochloride in decoction was more than that of the single preparation.The transfer rate of pseudoephedrine hydrochloride was the highest in the combination of ephedra and bitter almond.The transfer rate of amygdalin was the highest in the combination of ephedra and bitter almond.The transfer rate of glycyrrhizic acid in decoction was more than that of the single preparation.It was concluded that there were dynamic changes in the boiling process during herbal decoction preparation.The effectiveness and stability of Chinese medicine should be improved according to these changes.

Objective:To investigate the effect of upper limb pillow position on hemodynamic and safety of patients undergoing cerebellopontine angle tumor resection.Methods:Eighty-four patients receiving cerebellopontine angle tumor resection in our hospital from January 2016 to December 2019 were randomly divided into the experimental group (42 cases) and the control group (42 cases). Patients in the control group were placed in routine upper limb position, while patients in the experimental group were placed in upper limb pillow position. The data including systolic pressure, diastolic pressure, heart rate, saturation of blood oxygen were recorded on admission of operation room, completing placing body position, 30 minutes and 60 minutes after operation and after finishing the operation. The numbness/soreness of upper limbs and pressure injury rate was compared between the experimental group and the control group.Results:The rate of numbness/soreness of upper limbs were 2.4% (1/42) in the experimental group, 19.1%(8/42) in the control group, the differences were statistically significant ( χ2 value was 6.098, P<0.05). The stage 1 pressure injury were 2 cases in the experimental group, stage 1 and 2 pressure injury were 6 cases and 2 cases, respectively in the control group, the differences were statically significant ( Z value was 2.039, P<0.05). Conclusion:Upper limb pillow position of the operation side can reduce postoperative complication of patients undergoing cerebellopontine angle tumor resection, but will not increase the risk of abnormal hemodynamic fluctuation.

AIM To study the chemical constituents from Securidaca inappendiculata Hassk..METHODS The dichloromethane and ethyl acetate fractions of S.inappendiculata 95％ ethanol extract were isolated and purified by silica,gel column and recrystallization,then the structures of obtained compounds were identified by physicochemical properties and spectral data.RESULTS Ten compounds were isolated and identified as 8-hydroxy-1,3,4-trimethoxyxanthone (1),1,2,7-trimethoxyxanth-one (2),4-hydroxy-3,5-dimethoxybenzaldehyde (3),sesamin (4),2-methoxy-3,4-methylenedioxybenzophenone (5),1,3,7-trihydroxy-4-methoxyxanthone (6),1,3,7-t-rihydroxy-2-methoxyxanthone (7),2-hydroxy-1,7-dimethoxyxanthone (8),3,8-dih-ydroxy-1,4-dimethoxyxanthone (9),oα-spinasterol (10).CONCLUSION Compound 1 is first found in the form of natural product,compounds 2-4 are isolated from genus Securidaca for the first time.

Objective To analyze the activities of daily living (ADL) performance in children with cerebral palsy (CP) with different gross motor function and the correlation between gross motor function and ADL perform-ance. Methods A total of 118 children (81 boys and 37 girls; mean age: 47.7 months, SD: 20.1 months, age range: 18-90 months) with CP were recruited from three different rehabilitation centers in Shanghai. Types of CP included hemiplegia (n = 27), spastic diplegia (n = 53), spastic quadriplegia(n = 29), athetoid (n = 4), dystonic (n = 4), ataxic (n = 1). Gross motor function classification system (GMFCS) and Gross motor function measure (GMFM) were adopted to assess and classify the gross motor function. Pediatric evaluation of disability inventory (PEDI) was adopted to assess ADL performance. Differences of PEDI scores were compared among different levels of GMFCS; and the correlation between GMFCS levels, GMFM scores and PEDI scores were analyzed. Resnlts PEDI scores showed significant differences among CP children with different levels of GMFCS. The PEDI score usually de-creased with the increase of the GMFCS level, and mobility ability was the lowest. Significant correlations were found between PEDI scaled scores and GMFCS (rs = 0.85～0. 50, P < 0.001). Various levels of correlations (r = 0. 85～ 0.54, P<0.001) were found between GMFM scores and PEDI scaled scores. Higher correlations were found between GMFCS levels, GMFM scores and mobility ability. Conclusion ADL performance was significantly different among CP children with different gross motor function. The higher the gross motor function, the better the performance of ADL. Mobility would be improved by promoting gross motor function in CP children. The training of self-care and so-cial communication ability should be emphasized.

We studied the actions of diffusion weighted imaging (DWI) and dynamic contrast enhanced (DCE) magnetic resonance imaging (MRI) in differentiating breast tumors. From January 2010 to February 2012, we retrospectively analyzed data of 95 cases with breast tumor pathologically confirmed from DWI and DCE-MRI. We compared the ADC value, time-intensity curve (TIC) and DCE-MRI parameters between breast tumors, and calculated the sensitivity and specificity for differentiating breast tumors. The results were as follows: (1) On DWI, mean ADC value of malignant tumor was lower than that of benign tumor (P < 0.05). For differentiating breast malignant tumors from benign neoplasm, a cut-off ADC value of 1.2 x 10(-3) mm2/s achieved a sensitivity of 74.1% and specificity of 70.3%. (2) On DCE-MRI, early enhancement ratio (EER) value of malignant tumor was higher than that of benign tumor whereas value of time to peak (Tpeak) and maximal enhancement ratio (SImax) were lower than that of benign tumor (all P < 0.05). As for TIC, type II and III were more frequently seen in malignant tumor than in benign tumor whereas type I was more common in benign tumor than in malignant tumor (all P < 0.05). For differentiating breast malignant tumors from benign neoplasm, DCE-MRI obtained a sensitivity of 89.7% and specificity of 70.3%. (3) For differentiating breast malignant tumors from benign neoplasm, ADC value together with TIC obtained a sensitivity of 79.3% and specificity of 78.4%. Malignant or benign breast tumors could have their own unique characteristics on DWI and DCE-MRI. These characteristics might be helpful for differentiating these tumors.
Breast Neoplasms ; classification ; diagnosis ; Diagnosis, Differential ; Diffusion Magnetic Resonance Imaging ; Female ; Humans ; Magnetic Resonance Imaging ; Retrospective Studies ; Sensitivity and Specificity

Computer selective courses in medical colleges based on C language are facing many problems. First, C language lacks continuity with follow-up courses and well combines with professional courses, which result in loss of interest of students and few students would like choose this selective course. Second, the computer selective courses are miscellaneous and discontinuous, which occupies much time and therefore necessitate integration and optimization. The reformations and implementation schemes are proposed to optimize computer selective courses based on Java language. On the one land, different computer selective courses are optimized, credit hours are compressed, and selective interests of the students are improved. In addition, the practicability and scalability of computer selective courses are enhanced combining the characteristics of medical science specialty.

Objective To evaluate operative methods and the clinical effect of closed reduction and percuta-neous locking compression titanium plate internal fixation in treatment of distal tibial fractures.Methods The clinical data of 21 patients with fracture who received closed reduction technology through the subcutaneous tunnel of fracture end,minimally invasive percutaneous treatment of tibial locking titanium plate fixation were retrospectively analyzed. Results All 21 patients were followed up from 6 to 18 months(11 months in average).All patients recovered with good healing of fracture.According to criteria of Johner -Wruhs score,the results were excellent in 12 cases,good in 6 cases,fair in 3 cases,and poor in 0 case.The excellent and good rate was 85.71%.Conclusion The method of closed reduction and percutaneous locking compression titanium plate internal fixation in treatment of distal tibial frac-tures can protect skin soft tissue,reduce the damage to the blood -supply of the fracture,promote the healing of the fracture and reduce complications.

Objective A correlation method for evaluating operation quality of air conditioning systems is proposed , based on the outdoor and the indoor temperature history data of the terminal user from internet of things for the central air conditioning system , for lacking efficient way to evaluate . Methods A methematical model is set up based on the variance ratio of the data of the indoor and out temperture obtained from IOT within a given time interval , and theoretically induce the possibility and correctness to employ these index to evaluate the operation quality of the central air conditioning system . Results A typical central air conditioning system of a large sacal hospital is analyzed , the results shows the variance ratio of the indoor and outdoor temperature can reflect the capacity of the central air conditioning system for controlling the indoor temperature . Conclusion The method proposed for evaluating the op-eration quality of the air conditioning system based on IOT system is theotically correct and practically efficient , and can be employed to evaluate the operation quality of the air conditioning system of large scale medical buildings .