Objective To evaluate the value of serum tumor markers in diagnosis of over 80 years old patients with colorectal cancer.Methods Serum CA199,CA242 and CEA of 68 cases senile patients with colorectal cancer and 35 cases senile patients with benign large intestinal diseases were detected by ELISA.Results Serum levels of CA199,CA242 and CEA in patients with colorectal cancer were (37.95 ± 15.95 ) U/ml,( 50.08 ± 24.20 ) U/ml,( 22.34 ± 17.35 ) μg/L respectively and were significantly higher than that in patients with benign large intestinal diseases CA199 ( 10.73 ± 6.27 ) U/ml,CA242 ( 8.00 ± 3.52 ) U/ml,CEA(2.32 ± 1.01 )μg/L.In addition,the level of these three markers was increased with the progress of colorectal cancer and the sensitivity of diagnosis was related with the stages of colorectal cancer.Parallel combined testing methods increased the diagnostic sensitivity to 83.6％,and serial combined testing increased the diagnostic specificity to 88.7 ％.Conclusions Serum tumor markers showed certain values in the diagnosis of the senile patients with colorectal carcinoma.Furthermore,the combined determination of tumor markers is helpful for early diagnosis of colorectal cancer and increases the sensitivity and specificity in diagnosing of colorectal carcinoma.

Objective To explore the determination of elements selenium content in Se Semen Cassiae. Method Selenium content in Se Semen Cassiae was measured by graphite atomic absorption spectrophotometer. Result and Conclusion An appropriate extraction method and digesting condition were screened out. The determined results were accurate when the digested sample was dissolved and metered volume with 1% HNO3 which containing 0.1% Tween 80.

Adenocarcinoma ; diagnosis ; pathology ; Adult ; Aged ; Bronchoscopy ; methods ; Cooking ; Humans ; Lung Neoplasms ; diagnosis ; pathology ; Male ; Middle Aged ; Occupational Exposure ; Retrospective Studies

Objective To explore the epidemiological character of elderly burn patients and to provide the experience of prevention and treatment.Methods The retrospective study method was used,and totals of 531 elderly patients with burn from January 2002 to December 2010 in two hospitals were selected.Cases information such as demographics,clinical diagnosis,treatments,causes of injury,mortality rate and causes of death since admission and so on was recorded and analysed,then,the epidemiological character was summarized and the prevention and treatment were proposed.Results Among 531 patients with burn,the average age was 72.86,the rate of burn in home was 72.5％ and in accident was 16.70％.The clinical cure rate was 82.11％and the mortality rate was 2.33％.The proportion of the elderly burn patients account for the total admitted patients in the same period was 5.13％ in 2002 and 5.64％ in 2010,and the average age of elderly burn patients was higher from 72.53 years old in 2002 to 73.58 years old in 2010.Conclusions The proportion of the elderly burn patients account for total admitted patients in the same period was higher as well as the average age of patients from 2002 to 2010.We should pay more attention to the prevention and education for the burn in home as the main cause of elderly burn patients is the home burn.

Objective To explore the causes of congenital hypothyroidism by single photon emission computed tomography(SPECT) thyroid imaging.Methods Nineteen cases with congenital hypothyroidism were collected,and SPECT thyroid imaging was performed 15 minutes late after injected 99m TcO_ 4- 18.5-37.0 MBq.Results Five cases were found with normal glands,1 case with enlarged thyroid, 2 cases with enlarged thyroid and increased radiation,4 cases with ectopic thyroid,4 with a hypogenetic thyroid,and the last 3 cases showed no thyroid imaging.Conclusions The causes of congenital hypothyroidism can be found by SPECT thyroid imaging,which is important to the diagnosis of congenital hypothyroidism combined with detection of T_3,T_4,TSH.

Objective To analyze the possibility of assessing portal hypertension in patients with decompensated liver cirrhosis via contrast-enhanced ultrasonography and common serum markers.Methods Fifty-four patients with decompensated liver cirrhosis were divided into two groups according to hepatic venous pressure gradient (HVPG):HVPG＜12 mmHg (1 mmHg=0.133 kPa) and HVPG ≥12 mmHg.The non-invasive index of routine blood test,liver function,coagulation function,Child-pugh score (CPS) and the results of contrast-enhanced ultrasound such as hepatic artery arrival time (HAAT),hepatic vein arrival time (HVAT)、portal vein arrival time (PVAT),hepatic artery to henatic vein arrive transmit time (HA-HVTT) and portal vein to hepatic vein arrive transmit time (PV-HVTT) were assessed by univariate analysis and multivariate Logistic regression analysis,and then were used to generate a diagnostic model.The receiver operating characteristic curve was also used for analysis.Results The non-invasive model is Y =-0.217 × PV-HVTT + 1.526 × CPS-7.097.When the area under ROC curve (AUROC) was ≥0.857 and the best cutoff value was ≥0.631,and the sensitivity and specificity in judging HVPG≥ 12 mmHg were 87.5 ％ and 78.6％,respectively.Conclusions The model composed of PV-HVTT and CPS could be used to assess portal hypertension.

Objective To clone human asparagine synthetase(ASNS)gene,express the MS2- ASNS fusion protein through gene engineering and use the purified target protein to immune BALB/C mice, prepare and identify the monoclonal antibody(McAb),which forms the base for studying mechanism of L- asparaginase used as salvage regimen in midline NK/T cell lymphoma nasal type.Methods ASNS gene fragment was amplified by RT-PCR from HepG2 cell line and constructed into prokaryocytic expression vector.Fusion-protein of MS2-ASNS was expressed and used for immunizing BALB/C mice to prepare McAbs against ASNS.Identified the McAb and detected the expression of ASNS in tumor.Results Part of the ASNS reading frame(NCBI,M27396:179-1 420 bp)was cloned and product length of RT-PCR was 1 263 bp.Molecular weight of MS2-ASNS was about 54 700 Da.Two strains of hybridoma secreting ASNS McAbs were obtained.The subtype of the ASNS McAb was IgG2a.Western-blot showed that the McAbs could specifically react with MS2-ASNS fusion protein and ASNS protein in tumor cell lines.ASNS expression was detected by immunocytochemistry and Immunohistochemisrry.Conclusion We have cloned human ASNS gene,obtained the anti-ASNS McAb and examined the expression of ASNS in tumor.

The text has isolated 267 strains LAB from the traditional fermentative food in Sichuan. Using agar plate proliferation experiment and double-layer agar plate proliferation experiment (eliminating the effects of organic acid and H_2O_2, decreased after treatment with trypsin and papain) to screen a LAB of Bacteriocins P158 which has antibacterial action to Escherichia coli, Staphylococcus aureus, Micrococcus luteus, Pseudomonas aeruginosa, Bacillus subtilis. P158 was isolated from fermented glutinous rice. Through detection of its appearance, physiological and biochemical characteristics and 16S rDNA gene sequence homology analysis, it was identified as Lactobacillus plantarum.

Objective: To study the antipyretic action of Dipseudoephedrine Glycyrrhizin and its effect on heart rate and blood pressure of rats.Methods: The model of pyretic rabbit was established by diphtheria-pertussis-tetanus triple vaccine,and to observe the effect of Dipseudoephedrine Glycyrrhizin on temperature of rabbit. Two-path physiological recorder was used to measure heart rate and blood pressure.Results: The experiment proved that Dipseudoephedrine Glycyrrhizin can decrease the anus temperature of pyretic rabbit obviously.Dipseudoephedrine Glycyrrhizanate had no remarkably effect on heart rate and blood pressure.Conclusion: Dipseudoephedrine Glycyrrhizin has antipyretic action and has no effect on heart rate and blood pressure within studied dose.