Animals ; Antitussive Agents ; pharmacology ; Drug Evaluation, Preclinical ; methods ; Female ; Male ; Mice

Objective To study CT and MRI manifestation of untypical cystic lymphangioma.Methods CT and MRI findings of 8 cases of cystic lymphangioma proved surgically and pathologically were analyzed retrospectively.7 cases were performed by CT and the other by MRI.Results 3 lesions are located at facies cranii,2 lesions at neck,2 lesions are located at mesostenium and 1 lesion is located at chest wall.CT and MRI findings include:(1)dense mass(5 cases);(2)lesion contain solid and water dense(2 cases);(3)lesion contain high dense hematoma(2 cases);(4)calcification in lesion(2 cases);(5)infiltrate the adjacent tissue(3 cases).Conclusion Most majority cystic lymphangioma can be identified by CT and MRI which also helpful to evaluation lymphangioma before surgical treatment.

Objective To adopt the cone beam computed tomography(CBCT) to analyze the bone thickness of infrazygomatic crest with different vertical skeletal facial types in teenagers.Methods Sixty teenagers of skeletal class were collected,including each 20 cases of high angle,average angle and low angle.The CBCT scanning data of oral maxillofacial region were collected.The bone thickness at different coronary slices in buccal side of infrazygomatic crest region at 13,15,17 mm above the maxillary occlusal plane was measured.The measured data were analyzed statistically.Results The bone thickness of infrazygomatic crest was gradually thinned from down to up,and the difference was statistically significant(P＜0.05);the bone thickness(except 3 points at 13 mm from maxillary plane) at each measured point in the high,average and low angle groups showed the change trend of low angle ＞average angle＞high angle,the difference was not statistically significant(P＞0.05).Conclusion In teenagers,the bone thickness of infrazygomatic crest in skeletal class Ⅱ is gradually thinned from cranial direction and rearward,the high angle is thinnest and the low angle is thickest.

12E7 Antigen ; Adult ; Antigens, CD ; metabolism ; Cell Adhesion Molecules ; metabolism ; Chondrosarcoma, Mesenchymal ; metabolism ; pathology ; surgery ; Diagnosis, Differential ; Hemangiopericytoma ; pathology ; Humans ; Lymphoma ; pathology ; Male ; Nasal Cavity ; Neuroectodermal Tumors, Primitive ; pathology ; Nose Neoplasms ; metabolism ; pathology ; surgery ; Vimentin ; metabolism ; Young Adult

Objective To investigate clinicopathological features of endometriosis-associated epithelial ovarian carcinoma.Methods Retrospective follow-up study,clinicopathological data from patients with ovarian epithelial carcinoma were retrieved,analyzed and compared.Among the 727 cases,34 were found to originate from endometriosis (group A),33 were found to have co-existing ovarian endometriosis (group B),and the remaining 660 had no ovarian endometriosis at all (group C).Result Seven hundred and twenty-seven epithelial ovarian carcinoma patients were identified and their ehnicopathological data retrieved.Sixty-seven (9.2%) of these cases were found to have coexisting endometriosis.The frequency of malignant tumors arising from ovarian endometriosis in this case series was estimated to be 0.87% (34/3890).The mean (standard deviation) age in groups A,B,and C were(47.2±1.3),(47.8±1.2),(51.2±0.4) years,respectively,with patients in group C being significantly older (P = 0.013).Patients with coexisting ovarian endometriosis were mostly diagnosed at stage Ⅰ (P = 0.000)and having subtype of clear-cell (P =0.000),while other patients were mostly diagnosed at stage Ⅲ (P =0.001),and having subtype of serous carcinoma (P =0.000).The estrogen receptor (ER) positivity was significantly lower in groups A and B than that in group C (22.2%,31.6% vs 43.9%;P =0.018),but the difference in positivity of progestogen receptor among the three groups did not reach statistical significance (22.2%,15.8% vs 35.5%;P =0.082).While the five-year overall survival rate for all patients was 55.6%,significant difference in overall survival among the three groups was found 78.9%,92.8%,51.9%,respectively,for groups A,B and C (P =0.000).Conclusion Patients of endometriosis-associated epithelial ovarian carcinoma,especially patients with tumors arising from endometriosis,were found to be younger,having a significant lower stage and a better survival,and were mostly diagnosed with the subtype of clear-cell.

Objective To investigate the molecular expression and clinical significance of Vimentin and E-cadherin during epithelial-mesenchymal transformation of hepatocellular carcinoma (HCC) tissues.Methods Hepatocellular carcinoma and paracancerous tissue were collected from 55 patients,while nonneoplastic nonnal liver tissue were collected from 20 patients without cancerous diseases as control group.Expressions of Vimentin and E-cadherin were examined by immunohistochemistry staining.Clinicopathological features of the relative expression of Vimentin and E-cadherin,and its influence on prognosis were discussed as well.Results Vimentin was positively expressed in 69.1％ cancer tissue,and was significantly higher than paracancerous tissues and normal liver tissues(P ＜ 0.05).E-cadherin was positively expressed in 27.3％ cancer tissue and was significantly lower compared with paracancerous tissues and normal liver tissues(P ＜0.05).The expression of Vimentin and E-cadherin was negatively correlated(r =-0.653,P ＜ 0.05).Vimentin expressions in subgroups of TNM stage Ⅲ-Ⅳ,poor differentiation,multiple tumor nodules,metastasis and recurrence were all significantly higher than the respective subgroups as TNM stage Ⅰ-Ⅱ] (x2 =7.267,P ＜ 0.05),moderate to well differentiation (x2 =4.045,P ＜ 0.05),single tumor node (x2=12.143,P ＜0.05),without metastasis or recurrence (x2 =7.267,P ＜ 0.05).On the contrary,Ecadherin showed higher expression in the subgroup of single tumor node compared with multiple tumor nodules(x2 =6.878,P ＜ 0.05).The follow-up of patients further demonstrated that patients with positive Vimentin expression had a significantly lower disease-free survival compared with the Vimentin negative group (P ＜0.05).Conclusions Vimentin and E-cadherin both participated in epithelial-mesenchymal transition process of hepatocellular carcinoma.High expression of Vimentin and low expression of E-cadherin were closely correlated with occurrence and development of HCC.Vimentin and E-cadherin may serve as impottant biomarkers in clinical diagnosis and prognosis prediction of HCC.

Aldehyde Oxidoreductases ; deficiency ; Child, Preschool ; Female ; Humans ; Metabolism, Inborn Errors ; diagnosis ; enzymology ; metabolism ; Succinate-Semialdehyde Dehydrogenase ; gamma-Aminobutyric Acid ; metabolism

Objective To profile methylation alterations of cytosine-phosphate-guanosine islands (CGI)in epithelial ovarian cancer and investigate its applications for finding new candidate tumor markers.Methods Cancer cells were obtained by lager microdissection from 20 tissues of frozen-preserved epithelial ovarian tumors.Primary cultured epithelial cells were isolated from 5 tissues of normal ovaries.Differential methylation hybridization(DMH)based on microarray assay Was conducted using DNA to construct the aberrant DNA methylation pattern of epithelial ovarian cancer.MethyLight was conducted to verify the methylation status of 7 hypomethylated promoter CGI detected by DMH in tumor tissues of 87 patients with epithelial ovarian cancer and 42 patients with benigh ovarian diseases.Results The aberrant DNA methylation pattem of epithelial ovarian cancer were included 182 hypermethylated loci and 64 hypomethylated loci,of which the positive loci located more than 25%arrays were 18 and 31,respectively.The methylation ratio of gene LSM2,EGFLAM and CDKN2A in tissue DNA of patients with epithelial ovarian cancer and benign ovarian diseases Was 11%(10/87)versus 33%(14/42),8%(7/87)versus 21%(9/42),9%(8/87)versus 31%(13/42),respectively,which Was significantly decreased in tissues DNA of ovarian cancer than that from benigh ovarian diseases(P＜0.05).Conclusions The aberrant DNA methylation pattern of epithelial ovarian cancer is important for finding new cancer related genes.The promoter CGI of gene ISM2,EGFIAM and CDKN2A may be Hovel candidate for ovarian cancerspecific hypomethylated tumor markers.

AIM:To establish an LC-MS method for determining the concentrations of loratadine (LOR) in human plasma and to evaluate its pharmacokinetic characteristics. METHODS: A ZORBAX Eclipse XDB-C8 (5 μm, 150 mm×4.6 mm) column was used, atmospheric pressure electronic spray ionization (AP-ESI) and ion mass spectrum (m/z) of 388.2 (M+H)+ were selected to quantify LOR, and 275.1 (M+H)+ for ropivacaine (internal standard, IS). RESULTS: The linear range of LOR standard curve was 0.5-50 ng·ml-1, and the determination limit was 0.5 ng·ml-1. The pharmacokinetic parameters of LOR after a single dose of 20 mg tablet (T1), capsule (T2) and reference (R) were as follows, the half life (t1/2) 13.52±1.35, 13.14±0.98 and 14.00±1.25 h, the time to peak concentration (Tmax) 1.24±0.06, 1.18±0.12 and 1.17±0.12 h, the peak concentration (Cmax) 21.72±7.70, 21.49±8.34 and 20.50±8.65 ng·ml-1, the area under time-concentration curve (AUC0-48 and AUC0-∞) 137.24±47.84 and 146.61±51.03 ng·ml-1·h, 139.65±45.69 and 148.04±48.10 ng·ml-1·h, 134.19±49.03 and 143.70±52.08 ng·ml-1·h, the relative bioavailability of LOR tablet and capsule were (105.49±8.08)% and (102.90±10.02)%, respectively. CONCLUSION: The LC-MS method for determining the concentration of LOR in human plasma is sensitive and accurate and can be used for LOR bioavailability and pharmacokinetic studies. LOR tests and reference are bioequivalent.

Objective To investigate the mechanism that bFGF promotes the regeneration of injured optic nerve and induces dedifferentiation of glial cells in it. Methods Fifty-five adult male SD rats were randomly divided into 3 groups as normal control group, injury group and bFGF group. At day 7 post operation, optic nerves from injury group and bFGF group were detected by gene chip and real-time PCR. At day 7, 14 post operation, optic nerves were harvested and detected by HE staining and immunohistochemistry. Results Compared with the injury group, there were 645 genes expression up-regulated and 458 genes down-regulated including genes related neural stem cell or precursor cell neural development, proliferation, apoptosis, chromatin configuration, transcription regulation, signal transduction, neural growth and so on in the bFGF group. There were bigger nuclei, more cells, more immunoreactivity of nestin, extracellular signal-regulated kinase(Erk1/2), glial fibrillary acidic protein(GFAP), and myelin basic protein(MBP) in the distal optic nerves and more immunoreactivity of neurofilament(NF) in the proximal optic nerves in the bFGF group than that in the injury group.Conclusion bFGF could promote the proliferation of neuroglia cells, dedifferentiation of neural glias and improve the microenvironment to favour the regeneration of injured optic nerve.