Objective To compare the accuracy of full field digital mammography (FFDM) and digital breast tomosynthesis (DBT) in predicting size of ductal carcinoma in situ (DCIS).Methods Totally 30 women pateints with DCIS confirmed by histology were analyzed retrospectively.Two radiologists measured the size of the lesions on FFDM,DBT images respectively,and compared with pathological results.Two kinds of inspection methods correlation with pathology were compared with Pearson correlation analysis.Results Size of DCIS measured by doctor 1 and doctor 2 between FFDM and histology had correlation (r=0.857,0.818,both P＜0.01),and those between DBT and histology also had correlation (r=0.924,0.885,both P＜0.01).Intraclass correlation coefficient (ICC) of two doctors was 0.947 on FFDM,and 0.908 on DBT.Conclusion DBT provides a better estimation of the size of DCIS.Two physicians had high consistency for lesion size evaluation.For DCIS with microcalcifications,both FFDM and DBT provide smaller estimations compared with pathology,thus a bigger surgical resection of lesion is needed.

Objective:To provide the basis for postoperative nutritional support,exp lore the appropriate support methods and its influnce on rehabilitation in postoperative patients with laryngea l carcinoma.Methods:285 patients with laryngeal carcinoma were randomly divided into therapy group and control group.The therapy group (161 patients)was given homogenate diet and the control group(124 patients) was given mixed mi lk by nasal feeding 5-6 times per day.The nutritional index and occurr ence of pharyrgeal fistula were monitored at preoperation,7th and 14th days postopera tion r espectively.The duration of hospitalization of each patient was recorded at the same time. Results:The decreasing of the nutritional index w as significantly lower in the therapy group than in the control group(P<0.0 5).The duration of hospitalization was shortented to about 12 days, and the incidence of pharyngeal fistul a was reduced to 11%.Conclusion:The appropriate nutrition may decrease the incidence of pharyngeal fistula,shorten the mean duration in hospital and reduce the economic burden of postoperative patients with laryngeal carcinoma.

Object To determine the diumal changes of photosynthesis, its relationships with light intensities and temperatures, and the contents of chloroophyll in leaves of Dendrobium candidum Wall. ex. Lindl., D. wilsonii Rolfe and D. hercoglossum Reichb. f. Methods The net photosynthetic rate (NPR) was measured at intervals of 1.5 h during daytimes 7:30—16:30, under the photosynthetic affective rates 0—140 mmol/(m 2?s), and under the temperatures 29.6—38.2 ℃; contents of chlorophyll a and b in leaves were measured. Results NPR, light saturation point and compensation point were low in each of the three Dendrobium L. species. The NPR peaked during 8:00 and 10:00 am, and thereafter decreased rapidly as the temperature and light intensity increased. Content of chlorophyll b was high in the leaves. Conclusion These results indicated that the Dendrobium L. species, which are sciophyte plants, have great adaptations to their growing habitats.

Objective To analyze the influencing factors of hemoglobin A1c in type 2 diabetic patients,including blood glucose,anti-diabetic therapeutic regiments,disease course,age,diabetic education,degree-educated,self-monitoring blood glucose.Methods Seventy-eight type 2 diabetic patients were divided into two groups by different degree of blood glucose,anti-diabetic therapeutic regiments,disease course,age,diabetic education,degree-educated,self-monitoring blood glucose.The levels of hemoglobin A1c in two groups were compared.Results There were significant changes in the levels of hemoglobin A1c between fasting blood glucose (FBG) ≤ 6.1 mmol/L group (30 cases) and FBG ＞ 6.1 mmol/L group (48cases),2 h postprandial blood glucose (2hBG) ≤8.0 mmol/L group (32 cases) and 2hBG ＞ 8.0 mmol/L group (46 cases ),insulin treatment group (27 cases) and no-insulin treatment group ( 51 cases ),combined drugs treatment group ( 36 cases ) and single drug treatment group ( 15 cases),age ≤ 65 years old group (41cases) and age ＞65 years old group (37 cases),disease course≤ 10 years group (39 cases) and disease course ＞ 10 years group( 39 cases),degree-educated above high grade group( 34 cases) and degree-educated below high grade group (44 cases),diabetic education ≥2 times/month group (20 cases) and diabetic education ＜ 2 times/month group (58 cases),self-monitoring blood glucose≥2 times/week group ( 19 cases)and self-monitoring blood glucose ＜ 2 times/week group (59 cases)[ (6.7 ± 1.5 )％ vs.(7.9 ± 1.3 )％,(6.8 ±1.1)％ vs.(7.8 ± 1.2)％,(6.7 ± 1.5)％ vs.(8.1 ± 1.4)％,(6.8 ± l.0)％vs.(8.0 ± 1.6)％,(6.9 ± 1.7)％ vs.(7.4 ± 1.6)％,(6.5 ± 1.2)％ vs.(8.2 ± 1.3)％,(6.9 ± 1.0)％ vs.(7.6 ± 1.4)％,(6.1 ± 1.7)％ vs.(8.0 ±1.1 ) ％,(6.7 ± 1.1 )％ vs.(7.6 ± 1.2)％ ] (P ＜ 0.01 or ＜ 0.05 ).Conclusion Blood glucose,anti-diabetic therapeutic regiments,disease course,diabetic,degree-educated,self-monitoring blood glucose are the important factors influencing hemoglobin A1c.

Objective To compare the effects and complications of lumboperitoneal shunt ( LP ) and ventriculoperitoneal shunt ( VP ) in the treatment of post?traumatic hydrocephalus. Methods Eighty patients with post?traumatic hydrocephalus treated in the neurosurgery department of Zhangjiagang Hospital of Traditional Chinese Medicine from March 2014 to March 2010 were retrospectively analyzed. The patients were randomly divided into two groups,40 patients treated with LP were assigned into the LP group and 40 patients undergone VP treatment were seen as the VP group. All patients were followed up for 1 year to investigate and compare the symptom improvement rate,neurological deficit score and the incidence of complication of the two groups. Results The total effective rate of hydrocephalus disappearance in the LP group was 41. 50% ( 37/40) and 87. 50%( 35/40) in the VP group. The difference between the two groups was not statistically significant (χ2=0. 556,P=0. 456);the neurological deficit scores before treatment in the LP group and VP group were (28. 35±8. 64) points and (29. 13±7. 98) points,there was no significant difference between the two groups (t=0. 419,P=0. 676) . The difference in the scores of neurological deficit after treatment in the LP and VP group was not statistically significant ( (19. 32±5. 34) points vs. (21. 62±4. 86) points,t=1. 480,P=0. 143),the average scores of neurological deficits in the two groups were significantly better than those before treatment ( t=5. 623, 5. 084,P<0. 001 ) . There was no significant difference in the average score of improvement of urinary incontinence between the two groups before and after treatment ( t=0. 376,1. 265,P>0. 05) ,the average score of urinary incontinence improvement after treatment in both groups were better than those before treatment ( t=4. 891,5. 370,P<0. 001) . In the LP group,the incidence of bleeding,infection,shunt related complications and shunt abnormality were all 2. 50% ( 1/40 ) , the overall complication rate was 10. 00%, the incidence of bleeding,infection,shunt related complications and shunt abnormality in the VP group were 7. 50% (3/40), 10% ( 4/40 ) , 5% ( 2/40 ) 10%, ( 4/40 ) , the overall complication rate was 32. 50%, there was significant difference between the two groups (χ2=6. 050,P=0. 014) . Conclusion LP and VP have significant curative effect on the treatment of post?traumatic hydrocephalus,but the overall incidence of LP complication after 1 year is significantly lower than that of VP,and is worth popularizing widely in clinical practice

Objective To compare the proteome difference between multiple myeloma cell line U266 cells treated and untreated with PS-341, to investigate the potential drug targets, and to provide theoretical evidence for clinical therapy of multiple myeloma. Methods Two-dimensional gel electrophoresis (2-DE) was performed to separate proteins from treated and untreated U266 cells with proteasome inhibitor PS-341. ImageMaster 2D Platinum software was used to analyze 2-DE image, and matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF-MS) was used to identify the differentially expressed proteins. The expression levels of differential protein BAG-2 in the 2 groups of U266 cells lines were detected by Western blot. Results The 2-DE reference pattern of treated and untreated U266 cells with PS-341 was established. A total of 31 differential proteins were identified by MALDI-TOF-MS, 27 of which were down-regulated after PS-341 treatment. The differential expression level of BAG-2 in the 2 groups of U266 cells was confirmed by Western blot. Conclusion Some down-regulated proteins may be the potential drug targets of proteasome inhibitor PS-341.

OBJECTIVETo investigate the correlation between enhanced computed tomography (CT) findings and pathological results of rare parotid gland tumors, and improve diagnosis accuracy.

METHODSThe enhanced CT manifestations of 22 cases with pathologically documented rare parotid gland tumors, which included 6 cases of basal cell tumor, 5 cases of myoepithelioma, 4 cases of vascular invasion, 3 cases of lymphatic cyst, 3 cases of lipoma, and 1 case of chondrosarcoma, were retrospectively analyzed. The location, size, shape, density, and relationship with surrounding structure were evaluated on CT images.

RESULTSThe enhanced CT showed that basal cell tumors occurred in the superficial lobe of the parotid gland, with clear boundary, within the cystic lesion. The lesions were moderate to obviously enhanced, which may be accompanied by enlarged lymph nodes. Myoepithelial tumors were located in the superficial lobe of the parotid gland, with a small cystic prone and microcalcification within a few cases. The lesions were moderate to obviously enhanced. Hemangiomas of soft tissue mass prominent in the parotid gland surface were mild to significantly enhanced. Larger lesions may occupy the entire parotid gland, with uneven density and visible vein stone. The CT density values of the lymphatic cyst were usually higher. Chondrosarcoma mainly manifested cystic mass at the calcification edge. Lipoma with fat density mass exhibited clear boundary without enhancement. Fiber separation could be observed in the lesion.

CONCLUSIONCT can reflect the pathological features of rare parotid gland tumors by demonstrating their corresponding imaging features. Enhanced CT is the most effective means of imaging to identify the nature of rare tumor of the parotid gland lesions.

AIM: To investigate the effect of ischemic preconditioning (IP) on myocardial Bcl-2 expression and mitochondrial structure during heart valve replacement surgery under cardiopulmonary bypass. METHODS: Fifty-four patients were prospectively randomized to receive or not ischemic preconditioning (IP) before cold cardioplegic arrest. Ischemic preconditioning in the IP patients (n=22) was induced by a single 2-min ischemia followed by 3-min reperfusion just before aortic clamping and cold crystalloid cardioplegia for myocardial protection. The control group (n=32) received no ischemic preconditioning before cold cardioplegic arrest. The levels of ejection fraction (EF), fractional shortening(FS) and stroke volume (SV) in both groups were measured and compared. troponin T (c-TnT) level, Bcl-2 protein expression and microscopic changes of myocardial mitochondrial structure were recorded for each group before and after surgery. RESULTS: The level of EF, FS and SV in IP group was higher than those in control group (P<0.05). No significant difference in preoperative c-TnT levels between two groups was observed. The level of c-TnT in IP group was lower than that in control group and with a declining trend over time of 6 h, 24 h, 48 h, 72 h and 5 d after surgery, respectively. The preoperative positive unit of Bcl-2 expression between two groups showed no statistical difference (P> 0.05). Postoperatively, the positive unit of Bcl-2 expression in IP group was 19.85±5.88, significantly increased as compared to the preoperative value (P<0.05). In control group, the positive unit of Bcl-2 expression was 14.17±3.39, showed no statistically significant difference to the preoperative value (P>0.05). Postoperative Bcl-2 expression between two groups showed a significant difference (P<0.05). In the control group, microscopic observation revealed swollen mitochondrion, with a hardly visible or disrupted membrane for some mitochondrion;mitochondrial crista were obviously dissolved and loose with a large number of vacuoles formation. However in IP group, myocardial mitochondrion appeared with intact membrane, concentrated mitochondrial cristae with high electron density and no vacuoles formation was observed. CONCLUSION: IP may up-regulate the expression of myocardial anti-apoptotic protein Bcl-2 to protect the mitochondrion, thus protecting cardiocytes and cardiac functions.

malities should be alerted in TOF.

Objective To study the value of echoeardiography for diagnosis of juxtaposition of atrial appendage(JAA) and to discuss its features. Methods Eehocardiographic characteristics of JAA in nine cases were compared with results of cardiac catheterization and operation. The diagnostic features of echocardiography were summarized. Results Seven cases had juxtaposition of left atrial appendage and two had juxtaposition of right atrial appendage. The nine cases were all associated with severe congenital heart disease and the most frequent malformations observed with JAA were double outlet right ventricle, transposition of great artery, single ventricle and so on. Direct visualization of the JAA in the parasternal short-axis view at the base of the heart and visualization of an unusual transverse orientation of the atrial septum were the most features of JAA. Echocardiographie characteristics of JAA cases were correspondent to the results of cardiac catheterization and operation. Conclusions There is high accuracy by echocardiography to diagnosis JAA. JAA should be alerted in severe congenital heart disease.