ABSTRACT
Objective To investigate the clinical significance of HCV core antigen (HCV-cAg )in hepatitis C screening. Methods From October 2014 to October 2015 ,a total of 8000 serum samples were collected from the outpatient and inpatient. HCV-cAg and hepatitis C antibody (HCV-Ab) were detected by using ELISA.The positive samples of HCV-cAg or HCV-Ab were performed the confirmative diagnostic detection by PCR.Results Among 8000 serum samples ,82 positive samples were screened out ,in which 73 cases were HCV-RNA positive by elementary screening with the standard of HCV-cAg or HCV-Ab positive ,a-mong which 72 were HCV-RNA positive and and 9 cases were HCV-RNA negative by HCV-RANA confirmation.The sensitivity and specificity of HCV-cAg were 45.83% and 99.98% ,sensitivity and specificity of HCV-Ab were 94.44% and 99.90% ,which of HCV-cAg and HCV-Ab combined detection were 100.00% and 98.86% respectively.Conclusion HCV-cAg and HCV-Ab play complementary role in HCV screening.Their combined detecting contributes to increase the screening rate of HCV.
ABSTRACT
Objective To investigate the infection of Mycoplasma in female urogenital system and the evolution of drug resistance. Methods Ureaplasma urealyticum (UU) and Mycoplasma hominis (MH) infections were examined by pathogen culture and fluorescence quantitative PCR in urogenital samples from 530 female patients in 2007, and drug sensitivity tests were performed in vitro. The results were compared with those in 2000. Results In 2000, there were 99 patients with Mycoplasma infections, in which 65 were of UU infections, 15 were of MH infections and 19 were of UU + MH infections. In 2007, there were 344 patients with Mycoplasma infections, in which 236 were of UU infections, 47 were of MH infections and 61 were of UU + MH infections. Patients aged 21～30 had the highest Mycoplasma infection rates both in 2000 (46.2%) and 2007 ( 50.5% ) ; while Mycoplasma infection rate in patients aged under 20 rose from 5.1% in 2000 to 12.8% in 2007 (χ2 = 4.682, P < 0.05). Both in 2000 and 2007, pathogens presented the highest drug resistance rates to tetracycline (TET) and erythromycin ( ERY ) which were all bore 80%. Compared with 2000, drug resistance rates to levofloxacin (LEV), azitromvcin (AZI) and ofloxacin (OFL) rose in 2007, and the differences were of statistical significance (P <0.05), while drug resistance rates to dmoxycycline (DOX), minocyclin (MIN) and josamycin (JOS) were still in the low level. Conclusions UU is the primary pathogen of infection in female urogenital system, and there is a tendency of Mycoplasma infection in younger age women. DOX, MIN and JOS can be the preferred medicines for Mycoplasma infections.
ABSTRACT
Objective To study the relationship between the type of histopathology and prognosis of contained mucous adenocarcinoma(CMAC) of stomach and its clinical significance. Methods Eighty-seven cases of CMAC of stomach were observed by means of pathomorphology, histochemistry, immunohistochemistry and follow up etc. Results The malignant behavior of the cancer was significant difference according to the nature and quantity of the CAMC and the primary pathological type of the cancer.The clinical type in simple mucous carcinoma was mainly Borrmann type I;in tubular papilla mucous adenocarcinoma was mainly Borrmman type II; in signet-ring cell mucous carcinoma was mainly Borrmman type IV,and in mixed cell mucous carcinoma was mainly Borrmman type III. There was significant difference in the lymphatic metastasis and survival rate between the 4 groups. Conclusions Correct differentiation of the pathological type of contained mucous adenocarcinoma of stomach is important for guading the treatment and predicting the prognosis.Cathepsin D expression can help for understanding the biological behavior of CMAC of the stomach.