0.05),but the positive degrees were distinctly different(P0.05). Conclusion:The status of p53 may be related with multidrug resistance and the p53 positive tumors possibly show low sensitivity to chemotherapy.

Humans ; Multiple Myeloma ; drug therapy

Adult ; Cardiac Catheterization ; adverse effects ; Female ; Heart Septal Defects, Atrial ; therapy ; Hemolysis ; Humans

Aim Tostudytheinfluencesofsulfated polysaccharides ( SPPM60-D) on the regulation of free calcium concentration ( [ Ca2+] i ) of T lymphocytes of mice in vitro and explore the mechanisms involved. Methods Polysaccharides(PPM60)wereextracted from masson pine pollen with hot water and 60% etha-nol. PPM60-D was separated and purified from PPM60 with Sephacryl S-400HR. Sulfated polysaccharides ( SPPM60-D ) were derivated by chlorosulfonic acid-pyridine method and the [ Ca2+] i of T lymphocytes were measured by fluorescence spectrophotometer. IL-2 and IL-4 were measured by ELISA kits. Results ConAandSPPM60-Dcouldincrease[Ca2+]iinT lymphocytes by 211. 5% and 201. 8% respectively ( P<0. 01). 2-APB, LY294002, U73122 and verapamil rather than TAK-242 could significantly inhibit the in-crease of [ Ca2+] i induced by SPPM60-D. SPPM60-D could significantly increase the level of IL-2 and IL-4 in supernatant ( P <0. 01 ) . 2-APB rather than TAK-242 could significantly inhibit the increase of cyto-kines.Conclusion ItisspeculatedthatSPPM60-D could increase [ Ca2+ ] i via TCR/CD3-PI3K-PLC-IP3 R-Ca2+ signal pathway through TCD/CD3 receptor in T lymphocytes so that it could improve the level of IL-2 and IL-4 in supernatant in T lymphocytes.

Objective To evaluate the efficacy and security of combined recombinant human endostatin with GP chemotherapy for the treatment of advanced non-small-cell lung cancer (NSCLC).Methods Non- randomized concurrent control was used.32 patients were treated by recombinant human endostatin combined with chemotherapy as test group,40 patients of control group only received chemotherapy.The response rate (RR),the clinical benefit rate (CBR) and the time to progression (TTP) were observed.Results The total RR in two groups were 40.6 ％ and 20.0 ％ (x2 =3.66,P =0.07).The total CBR were 68.8 ％ and 42.5 ％ (x2 =4.93,P =0.034).The total time to progression were 5.2 months and 3.9 months (P =0.042).Incidence of adverse reactions of experimental group and control group was no significant difference.Conclusion Combined recombinant human endostatin and chemotherapy can improve the curative effect (RR,CBR and TTP) of advanced NSCLC.

Adolescent ; Adult ; Aged ; Cholesteatoma, Middle Ear ; congenital ; pathology ; Female ; Humans ; Male ; Melanocytes ; Middle Aged ; Young Adult

Adrenocorticotropic Hormone ; blood ; Animals ; Female ; Hypoxia ; metabolism ; Male ; Rats ; Rats, Wistar

Objective To investigate the effects of low dose radiation on the level of oxidative damage and antioxidant in population of high background radiation area of Guangdong.Methods A total of 48 male residents who lived in high background radiation area(HBRA) of Guangdong province and 48 male residents who lived in neighboring Enping control area were chosen as the objectives and control respectively.The peripheral venous blood of two groups was collected,and then the levels of 8-OHdG and TrxR were determined by enzyme linked immunosorbent assay (ELISA).Results Compared with the CA group [(315.39 ± 100.59) ng/ml],the level of 8-OHdG [(272.64 ± 96.85) ng/ml] decreased significantly in HBRA (t =2.121,P ＜0.05).Compared with the CA group [(0.467 ±0.056) ng/ml],the level of TrxR [(0.496 ± 0.044) ng/ml] increased significantly in HBRA (t =-2.823,P ＜ 0.05).The results of multiple linear regression analysis demonstrated that the chronic exposure to low dose of radiation had significant effects on the expression level of 8-OHdG and TrxR (t =-2.327,2.367,P ＜ 0.05) after adjustment for confounding factors such as age,drinking,tea drinking,smoking,medical exposure and stressful events.Conclusions Chronic exposure to low dose radiation may decrease the level of oxidative and enhance the level of antioxidant.

Objective To study the effect of interventional treatment on the expression of PgP and GST ? in different histopathological types of primary lung carcinoma. Methods One hundred and eighteen cases of histopathologically verified primary lung carcinoma were studied. SCLC was found in 26 cases and NSCLC in 92 cases. The non chemotherapy group had 50 cases, and the interventional treatment group had 68 cases. PgP and GST ? were examined in all specimens with 2 step immunohistochemistry. Results The positive expression rates of PgP and GST ? were 32.0% and 34.0% in non chemotherapy group, respectively, 75.0% and 78.6% in interventional treatment with non embolization group, respectively, and 50.0% and 52.5% in interventional treatment with embolization group, respectively. The positive expression rates of PgP and GST ? had significant difference between non chemotherapy group and interventional treatment with non embolization group( P 0.05). There was a tendency of positive correlation between differentiated degree of carcinoma and the expression of PgP and GST ? in NSCLC. Condusion To detect PgP and GST ? in carcinoma tissue is important and has the instructive significance for chemotherapy of lung carcinoma. The positive rate of multidrug resistant gene is obviously increased in the primary lung carcinoma with bronchial arterial chemotherapy. The inducement to multidrug resistance gene in bronchial arterial embolization with the emulsifying agent of oil anticarcinogen was lower.

Objective To improve the level of diagnosis and treatment of hilar cholangiocarcinoma by investgating it′s clinical characteristics.Methods The clinical data of 98 patients with hilar cholangiocarcinoma were analyzed retrospectively.Results According to the Bismuth-Corlitte grouping: typeⅠ,8 cases;typeⅡ,19 cases;type Ⅲ,17 cases;type Ⅲb,14 cases;and type Ⅳ,40 cases.Radical resection(49),palliative operation(12),endoscopic retrograde biliary drainage(16),and PTCD(5) were performed The median survival time of radical resection group was 28.6 months and the survival rate at 1,2,3,and 5 years was 74.2%,65.3%,37.5%,and 3.9% respectively,while the median survival time of palliative operation group was 17.6 months and the survival rate at 1,2,3,and 5 years was 71.7%,26.8%,8.9%,and 0% respectively.The median survival time of endoscopic retrograde biliary drainage group was 4.5 months and the survival rate at 1,2,3,and 5 years was 21%,13%,and 0% respectively.Conclusions Early diagnosis by adjunctive examinations is vital to treatment of hilar cholangiocarcinoma.Radical resection is the sole procedure to improve the outcome and prognosis of hilar cholangiocarcinoma.Multiple therapeutic methods should be adopted and should be individualized.