Objective To investigate the application value of contrast-enhanced ultrasound in the diagnosis of ovarian masses.Methods Ninety-four patients with ovarian masses were observed and undetermined by conventional ultrasound examinations who were underwent contrast-enhanced ultrasound examinations and were made the time-intensity curve.By analyzing the perfusion characteristics and the quantitative parameters of time-intensity curve,we compared the difference of different masses.Results The perfusion characteristics and the quantitative parameters of the time-intensity curve were different.The arrival time and the time to peak intensity of benign masses were later than those of malignant tumors.The peak iniensity of benign masses was lower than that of malignant tumors.There was a significant difference between the two groups.The arrival time and the time to peak intensity of benign tumors were later than those of malignant tumors.The peak intensity of benign tumors was lower than that of malignant tumors.There was a significant difference between the two groups.The time to peak intensity of non-tumorous lesions was later than that of malignant tumors.The peak intensity of non-tumorous lesions was lower than that of malignant tumors.There was a significant difference between the two groups.The arrival time of non-tumorous lesions was earlier than that of benign tumors.There was a significant difference between the two groups.Conclusion The perfusion characteristics and the quantitative parameters that draw from the time-intensity curve of different masses are different.Contrast-enhanced ultrasound is contributive to the diagnosis and the differential diagnosis of different masses.Contrast-enhanced ultrasound also has great clinical values to those ovarian masses whose ultrasonic appearance is complex and difficult to diagnose qualitatively.

Recent reports have indicated that Statins could remarkably improve the prognosis of patients suffered from coronary artery disease.And this effect is not only due to Statin's lipid-regulating function,but also correlated to its non-lipid-regulating action.Atorvastatin is the latest kind of statins.In this article,we specified the non-lipid-regulating effect of Atorvastatin in the prevention and therapy to coronary artery disease.Furthermore,we summarized its corresponding clinical evaluation or security.

Objective　To investigate the level of cell adhesion molecule sialyl-LeX expression in colorectal carcinoma and its relation with carcinogenesis, differentiation, metastasis and prognosis. Methods　Sialyl-LeX expression and its optical density in colorectal carcinoma (n=90) and remote normal mucosa (n=30) were quantitatively studied with microwave-LSAB immunohistochemical method combined with image analysis technique. Fifty-three patients were followed up. Results　 The weaker staining in remote normal colorectal mucosa was observed in very limited parts of some deep crypts. Positive rate of sialyl-LeX expression was only 16.7%(5/30). The positive expression of sialyl-LeX was observed in 83 of 90 patients with colorectal carcinoma(92.2%). The apical cytoplasma of cancer tubules, the luminal contents, and the cytoplasma of the cancer cells were strongly stained. The mean integral optical density of sialyl-LeX positive cell in poorly differentiated adenocarcinoma was significantly higher than that in highly differentiated and mucinous ones (P<0.01). It was markedly higher in patients with positive lymphatic nodes than that in negative ones (P<0.01). With followed-up for longer than 5 years, it was much lower in the alive cases than that in the dead (P<0.01). Conclusion　These findings indicate that changes of sialyl-LeX expression and its optical density is related to carcinogenesis, differentiation, invasion and metastasis of colorectal carcinoma. It may be a good predicter for the prognosis of patients with colorectal carcinoma.

Objective To discuss the related factors about the rising cesarean section rates, and to propose feasible measures to reduce cesarean section rates. Methods Cesarean section cases in our hospital from January, 2000 to December, 2009 were retrospectively analyzed. Results The cesarean section rate increased year by year,32.0% in 2000,34.5% in 2001,35.0% in 2002,32.3% in 2003,37.1% in 2004,37.9% in 2005,40.2% in 2006,41.7% in 2007,43.6% in 2008,46.1% in 2009. Conclusions Effective measures should be taken to reduce the cesarean section rate.

Objective To observe the effect of exercise on insulin resistance induced by a high fat diet and to explore the underlying mechanism.Methods Thirty healthy male Wistar rats were randomly divided into a normal control group (NC group) and a high-fat group (HF group),fed with normal chow and a high fat diet respectively.Eighteen weeks later,insulin resistance had appeared in the HF group.The HF group was then randomly subdivided into a high-fat diet control group (HC group,fed a high fat diet) and an exercise group (HE group,fed a high fat diet and subjected to swimming training for 6 weeks).After 24 weeks,an insulin sensitivity index was calculated.Serum free fatty acid (FFA) and skeletal muscle triglyceride (TG) were detected.Phosphorylation of adenosine monophosphate kinase-α (AMPKα) in skeletal muscle was detected by Western blotting.Results At twenty-four weeks the insulin sensitivity of the HC group had decreased significantly compared to the NC group.Serum FFA level and skeletal muscle TG content had both increased.Average phosphorylation of AMPKα in the HC group decreased to 48.7% of the NC group average.Compared to the HC group,insulin sensitivity and phosporylation of AMPK-α were elevated significantly in the HE group.Serum FFA level and skeletal muscle TG content were both lower.However,compared to the NC group,both serum FFA level and skeletal muscle TG content had increased in the HE group,while insulin sensitivity and phosphorylation of AMPKα had significantly decreased.Conclusions Exercise can significantly improve insulin resistance induced by a high-fat diet through decreasing serum FFA level and ectopic li-pid accumulation in skeletal muscle.

PURPOSE To investigate the effects of bcr3/abl2 anisense oligodeoxynucleotide (ASO) on chronic myeloid leukemia (CML). METHODS The effects of bcr3/abl2 ASO in 15 CML patients were evaluated by morphological observation, flow cytometer (FCM) techniques and DNA fragment measurement. RESULTS bcr3/abl2 ASO can induce apoptosis in CML. CONCLUSION Antisense techniques may provide a new way to cure CML.

OBJECTIVE:To establish a method for the determination of the dissolution rates of azithromycin tablets and to compare the dissolution rates among azithromycin tablets that from different manufacturers so as to provide references for clinical medication.METHODS:The concentrations and drug cumulative dissolution rates of a total of 5 batch numbers' azithromycin tablets that from 5 pharmaceutical factories were determined based on the related standard procedure indexed in China Pharmacopoeia(2005 edition),then the dissolution parameters were calculated with Weibull formula.RESULTS:The dissolution rates at 45 min were above 75%,which was up to the standard.The analysis of variance showed that there were significant differences among samples in dissolution parameters(P

Objective To investigate the expression and distribution of sialyl Lewis X in colorectal carcinoma and its relationship with carcinogenesis, progression and metastatic proclivity.Methods Microwave LSAB immunohistochemical technique was used to detect the expression of sialyl Lewis X in colorectal carcinoma and in normal mucosa. Immunoelectromicroscopic localization of sialyl Lewis X labelled by colloidal gold was also observed.Results The positive rate of sialyl Lewis X expression in primary colorectal cancer was 92 2%(83/90), and 16 7%(5/30) in normal mucosa. The positive rate was 100% in patients with lymphatic nodes metastasis, compared with that of negative nodes of 82 1% ( P

Objective To investigate the level of cell adhesion molecules LeX , sialyl-LeX, LeA and sialyl-LeA expression in colorectal carcinoma and its relation with carcinogenesis, differentiation, metastasis and prognosis.Methods The expression forms of LeX,sialyl-LeX,LeA and sialyl-LeA were studied by immunohistochemistry method with catalysis signal amplification (CSA)in 90 carcinomas and 30 normal mucosal specimens of colon and rectum, as well as in 51 metastatic lymph nodes.Fifty-three patients were followed up. Results Their antigens were expressed in normal mucosa distant from carcinoma lesions with the following frequencies: LeX, 93 3% (28/30); sialyl-LeX, 16 7% (5/30); LeA, 93 3% (28/30); and sialyl-LeA, 90 0% (27/30), whereas in colorectal carcinomas, the expression frequency rate were: LeX, 90 0% (81/90); sialyl-LeX, 94 4% (85/90); LeA, 78 9% (71/90); and sialyl-LeA, 80 0%(72/90). In metastatic lesion of lymphode LeX, sialyl-LeX, LeA and sialyl-LeA were expressed in 68 7% (35/51),96 1% (49/51),66 7% (34/51) and 66 7% (34/51), respectively.Conclusions The alteration of Lewis-related carbohydrate antigens in cancer cell membranes, including sialylation and/or aberrant glycosylation,these alteration may be related to metastatic behavior. These results suggested that sialyl-LeX may be used for estimating infiltration, metastasis and prognosis as a tumor-associated antigen in colorectal carcinoma.

Objective To address angiotensin Ⅱ type 1 receptor (AT 1R) gene polymorphism and its relationship with plasma endothelin (ET) in PIH. Methods Gene polymorphism of AT 1R at site 1166 was detected with polymerase chain reaction (PCR), digestion of restriction enzyme and electrophoresis. Plasma ET was measured by radioimmunoassay. Results 1. The frequencies of genotype(AC and CC) at 1166 of AT 1R gene and C allele in PIH individuals were significantly higher than those of control group, (? 2=11.06, 9.73, respectively, P0.05). Conclusions 1. The variant (A→C) of 1166 polymorphism site of AT 1R is associated with the generation of PIH, and C allele may be a susceptible gene to PIH. 2.There is relationship between AT 1R gene and plasma ET level in PIH patients.