Objective To investigate two fixation methods for reconstruction of anterior cruciate ligament(ACL)with autogenous patellar tendon graft and their instant stability.Methods 15 specimens were divided into three groups.The first group was treated with 1/3 bone-patellar ligament-bone replacement and in terference screw fixation,the second group was treated with 1/3 bone-patellar ligament and Krackow locked bilateral suture,and in the third group the intact ACL was not treated.The mono-axial tensile tests were performed on a versatile hydraulic material testing machine(WE-5A)to compare the linear load,maximum load,linear straining,maximum straining,linear displacement,maximum displacement,rupture displacement,destructive energy,elastic modulus,and ultimate strength of ACL in the three groups.Results The ACL stability and rigidity in the group of 1/3 bone-patellar-bone replacement and interference screw fixation were higher than those in the other two groups.The differences between test results were statistically significant.Conclusion The ACL reconstruction with 1/3 bone-patellar ligament-bone replacement and interference screw fixation is a good method to ensure higher strength of graft and better joint stability.

Objective To investigate the expression of survivin, matrix metalloproteinase (MMP-2) and tissue inhibitor 2 of matrix metalloproteinase (TIMP-2) in cervical carcinoma and their relationship with invasion and node metastasis of the cervical cancerous tissues. Methods The expressions of survivin, MMP-2 and TIMP-2 were examined by immunohistochemical S-P method and colour pathological image computer analysis system in 10 cases of normal cervical epithelia, 10 cases of cervical carcinoma in situ, 40 cases of invasive squamous cell cervical carcinoma and 11 cases of invasive cervical adenocarcinoma. The relationship between those indexes and the factors related to clinical pathology of cervical carcinoma were analyzed statistically. Results It was found that the positive level of survivin and MMP-2 expression increased in the order of normal cervical epithelium, cervical carcinoma in situ and invasive carcinoma of cervix (P0.05). The positive expressions of survivin and MMP-2 in patients under 35 years old or with pelvic lymph node metastasis, intravascular involvement and stroma involvement were significantly higher than that in the cases without them, while TIMP-2 expression was opposite to that of MMP-2 (P

ObjectiveTo study the influence of preoperative transcatheter arterial chemoembolization (TACE) on liver resection in patients with resectable hepatocellular carcinoma (HCC).MethodsTACE was performed before liver resection in 62 out of 126 patients, and perioperative risk factors were compared with that of the 64 patients without TACE including liver perioperative function alterations, average blood loss during operation, the average time of clamping porta hepatis and operation, abdominal drainage at 1-, 2-, and 3-days post-op, mortality and morbidity. ResultsThere was not significant difference in liver function alteration in the two groups, there was no mortality in the two groups. Liver cirrhosis in TACE group was more serious than that in no TACE group, the operation time was longer in TACE group. Blood loss, and abdominal drainage were much more in TACE group than in no TACE group. However postoperative complications did not differ.Conclusion Preoperative TACE for resectable HCC increases surgical difficulty and risk. Preoperative TACE for resectable HCC needs to be used on baseis of strict selection.

Object To provide evidences for the identification of the root of Ampelopsis brevipedunculata (Maxim.) Trautv. var kulingensis Rehd as a basis for the rational exploitation and utilization of this medicinal plant Methods The characteristic features were studied by macroscopic and microscopic observations and its chemical costituents identified qualitatively by TLC Results Macroscopic and microscopic characteristics of this crude drug were described 4 chemical compositions, such as lupeol, were found by TLC Conclusion The distinct characteristics revealed in the studies could provide a basis for the identification of this crude drug

Objective To evaluate the reconstruction of right ventricle outflow tract (RVOT) with BalMedic pulmonary valved conduit in multiple medical center.Methods Since January 2007,50 patients age (4.90 ± 7.63) years (range 6 month to 39 years),weight (16.20 ± 13.69) kg (range 4.50 to 65.0 kg),had been corrected by reconstruction of RVOT.There were 22 patients with pulmonary atresia and ventricular septal defect (PA/VSD) ; 10 patients with corrected transposition of the great arteries and pulmonary stenosis (C-TGA/PS) ; 7 patients with truncus; 4 patients with double outlet of right ventricle and pulmonary stenosis (DORV/PS) ; 3 patients with tetralogy of Fallot (TOF) ; 2 patients with complete transposition of the great arteries and pulmonary stenosis (TGA/PS) ; and each 1 with aortic stenosis (AS) and pulmonary stenosis (PS).Fifty BalMedic pulmonary valved conduits were implanted between pulmonary and RVOT underwent cardiopulmonary bypass.There were different diameter of pulmonary valved conduit included 10 mm to 24 mm depend on the patients weight and pulmonary size.All patients were followed up after operation on 1 month,3-6 months and more than 12 months.Results There was no death.Three patients were lost followed up after 12 months and one late death.There were no pulmonary valve stenosis about 91.1％,moderate pulmonary regurgitation 16.0％,no RVOT obstruction 95.6％,no main pulmonary artery stenosis 80.0％,and no right and left pulmonary artery stenosis 73.0％.Conclusion These results demonstrated that the BalMedic pulmonary valved conduit is reliable and effective in surgical procedure,but the long-term results should be followed up continually.

Adult ; Antigens, CD ; metabolism ; Antigens, Differentiation, Myelomonocytic ; metabolism ; HIV Enteropathy ; complications ; metabolism ; microbiology ; pathology ; Humans ; Male ; Mycobacterium avium Complex ; isolation & purification ; Mycobacterium avium-intracellulare Infection ; complications ; metabolism ; microbiology ; pathology ; Young Adult

This paper aims to investigate the value of diffusiion weighted imaging (DWI) and different apparent diffusion coefficient (ADC) methods to predict the curative effects of neoadjuvant chempotherapy (NAC) for breast cancer. From March 2010 to December 2012, seventy-one patients were pathologically confirmed invasive breast cancer by needle puncture biopsy received before surgery, and underwent magnetic resonance before and after NAC, the ADC were measured by mean ADC method and lower ADC method. The pathologic response after NAC was divided to major histological response (MHR) group and non-major histological response (NMHR) group according to Miller & Payne system. Results displayed that ADC values obtained before NAC, at the end of the second cycle of NAC, and after whole course of treatment, had good correlations between mean and lower ADC methods (the Pearson's correlation=0.699, 0.749 and 0.895, respectively). Significant difference in ADC obtained both with mean and lower ADC methods could be found between MHR and NMHR groups after the second cycle of NAC (P< 0.05). After the second cycle of NAC, significant difference in the change rate of ADC could be found between MHR and NMHR groups by using lower ADC method (P<0.05), but not be found by using mean ADC method (P >0.05). In conclusion, DWI could monitor the pathologic changes of breast cancer after NAC, and the lower ADC method might be used to evaluate the curative effect of NAC with the change rate of ADC.
Breast Neoplasms ; drug therapy ; pathology ; Diffusion Magnetic Resonance Imaging ; Female ; Humans ; Neoadjuvant Therapy

Objective To observe the level changes of interleukin-15 (IL-15) and its role and clinical sig-nificance in severe type B hepatitis(HB). Methods IL-15 levels of 47 cases of severe HB and 20 cases of healthy subjects were detected by ELISA,meanwhile the alanine aminotransferase (ALT),total bilirubin (TBIL) and pro-thrombase activity (PTA) were measured as well. The correlation between IL-15 and ALT,TBIL and PTA were ana-lyzed. Results IL-15 in severe HB eases were higher than in control group [(18.9±7.5 ) ng/L vs. (5.9±2.0) ng/L,P <0.01] ,which was higher in death group than in survival group[(24.1±7.5) ng/L vs. (15.7±5.4) ng/L, P<0.01]. IL-15 level was decreasing with the improvement of general condition and liver function recovery. In addition, IL-15 in severe HB was positively correlated with TBIL (r=0.570,P<0.01) and negatively correlated with PTA(r=-0.529,P<0.01) but was not significantly correlated with ALT(r=0.099,P>0.05). Conclusion IL-15 may take part in the pathogenesis of severe HB ,which is consistent with disease condition and is closely re-lated to the improvement of disease. The detection of IL-15 may exert a predicting role in the prognosis of severe HB.

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

Objective To explore the relationship between bronchoalveolar lavage fluid (BALF) Mycoplasma load and clinical characteristics in children with Mycoplasma pneumoniae (MP) pneumonia.Methods MP DNA was quantitatively detected by fluorescent real-time PCR in BALF from 67 children with MP pneumonia.They were classified into three groups:low MP load group (＜ 103/ml,21 cases),moderate MP load group (103-106/ml,22 cases) and high MP load group (＞ 106/ml,24 cases).Clinical symptom,main laboratory and imaging results of children among three groups were compared.Results When compared with low MP load group and moderate MP load group,high MP load group had longer fever duration [(7.4 ± 2.6),(10.0 ± 2.4) d vs.(12.4 ± 2.7) d],longer time to normalization of temperature with macrolide administration [(4.2 ± 1.0),(8.5 ± 2.4) d vs.(10.8 ± 4.4) d],more patients with high fever,there was significant difference (P ＜ 0.05).Statistically significant difference existed in C-reactive protein among three groups [(3.0 ± 1.4),(11.5 ±7.6),(34.0 ± 10.1) mg/L] (P =0.004).Large field of consolidation or atelectasis were found in 58.3％ (14/24) of high MP load group,much higher than 22.7％ (5/22) in moderate MP load group and 14.3％ (3/21) in low MP load group.Bilateral or massive pleural effusion was not found in low MP load group,while in moderate MP load and high MP load group,they were 13.6 ％ (3/22) and 25.0％ (6/24)(P =0.033).Conclusions There is a close relationship between MP load in BALF and clinical characteristics in children with MP pneumonia.Those with high MP load have a more severe process.