ABSTRACT
Objective:To construct a chemiluminescense immune quantification assay based one paired mAbs against complexed prostate specific antigen ( c-PSA).Methods:Six week-old female BALB/c mice were immunized with the commercial c-PSA antigen.After serum titer reaching a platform stage ,the spleen was immunized and fused with mouse myeloma cell lines ( Sp2/0 ) .The hybridoma were screened by indirect ELISA ,and eight generated antibodies were paired to obtain a quantitative analysis of the chemical luminescence.Results:7D6 specifically recognized c-PSA,while 1A10 recognized total PSA(t-PSA).And the paired antibody 1A10/7D6 were determined to successfully construct a chemiluminescense immune response quantitative detection method through the detection of c-PSA standard and clinical serum samples .had,positive samples have statistically significant difference ( P<0.000 1 ) with negative samples.And the correlation coefficient R 2 was 0.97 between our c-PSA quantitative results and that of the Siemens c-PSA chemiluminescense immunoassay kit .The detection linear range was 0.1-100 ng/ml,and the sensitivity was 0.005 ng/ml.Conclusion:The paired monoclonal antibodies specifically detecting c-PSA were generated and a c-PSA chemiluminescense immunoassay were developed in this study .The detection capability of our method was comparable with that of the international commercial kit .
ABSTRACT
Objective To investigate the general information and death causes in the emergency department ( ED) with an epidemiological study in the death cases.Methods The clinical records of 1007 death cases in the ED admitted in three years from 2011 to 2013 were collected and statistically analyzed.Methods The clinical records of 1 007 death cases in the ED admitted in three years from 2011 to 2013 were collected and statistically analyzed.Results The mean age of the 1 007 deaths was ( 75.95 ±13.89 ) ears, and the mean score of APACHEⅡ at admission was ( 27.19 ±6.44 ) .Malignant neoplasm, pulmonary infection, chronic obstructive pulmonary disease, coronary heart disease, stroke, sepsis, acute coronary syndromes were main underlying causes of death, while respiratory failure, circulatory collapse, generalized debility, multiple organ dysfunction syndrome, emaciation from malignant neoplasm, septic shock, severe pulmonary infection were main direct lethal causes of death.Most patients were vulnerable to be dead in the spring season, January and around midnight from 23: 00 to 1: 00 (zi time).It is noteworthy that pulmonary infection accounted for 74.75%(151/202 ) of the nosocomial infection. Hyperlactacidemia and low oxygenation index indicated a poor prognosis.Conclusions The deaths were predominant in old age, and the order of incidence of the underlying death causes from high to low arranged was consistent with the sequence of death causes of the cities in China in 2010.To identify carefully the risk factors of death and concern about the early symptoms of exacerbation of underlying diseases can make a big difference in enhancing the success rate of rescuing the critical emergency patients.Besides, it's worth pondering over that the medical care of patients with malignant neoplasm spent abundant emergency resources.