OBJECTIVE To investigate the correlation between vascular endothelial function and aortic compliance in patients with obstructive sleep apnea hypopnea syndrome(OSAHS) and hypertension. METHODS A total of 103 OSAHS cases were divided into simple OSAHS group(n=55) and OSAHS complicated with hypertension group(n=48, OSAHS+HT group). 20 patients with simple hypertension were included into the hypertension group, and 20 healthy people served as controls. Vascular endothelial function was evaluated by detecting flow mediated dilation of the brachial artery(FMD) with color Doppler; the changes of aortic compliance in patients were detected by echocardiography. RESULTS The FMD, aortic tension and aortic distensibility index levels of OSAHS with hypertension group were significantly lower than the normal control group, hypertension group and OSAHS group(P<0.05); The aortic stiffness index level of OSAHS hypertension group was significantly higher than the normal group, the high blood pressure group and OSAHS group(P<0.05); Analysis of Spearman correlation coefficient of patients in OSAHS with hypertension group found aortic FMD were positively correlated with aortic stiffness index, negatively correlated with aortic tension index and aortic expansion; The aortic FMD, aortic tension, swelling index and aortic stiffness index in OSAHS hypertension group had positive correlation with AHI (P<0.05), and negative correlation with LSaO2(P<0.05). CONCLUSION OSAHS is associated with vascular endothelial dysfunction and decreased aortic compliance. When combined with hypertension, vascular endothelial function and aortic compliance will be significantly affected. The severity of OSAHS was closely related to the decrease of vascular endothelial function and the changes of aortic compliance.

Objective To explore the correlation between the expression of somatostatin (SS), gastrin (GAS), apoptosis index (AI),and p53 gene in colonic carcinoma. Methods The expression of GAS, SS, p53 and apoptosis cell were detected by immunohistochemistry (streptavidin-biotin-pero xidase complex, SABC) and in situ apoptosis detecting technic (TUNEL) . Results AI is higher in SS high and middle expression cases than in low expression cases(q=5.06,q=3.95,P

BACKGROUNDTo study the anti-invasive effects and its mechanism and apoptosis induction of pentacyclic triterpenoid including glycyrrhizin (GL), 18β-glycyrrhetinic acid (GA), ursolic acid (UA) and oleanolic acid (OA) in highly potentially metastatic lung cancer cell line (PGCL3).

METHODSThe invasive ability, the adhesive ability, the migration ability and the activity of cathepsin B (CB) of PGCL3 cells treated with the four drugs were determined by the invasion test of reconstituted basement membrane, the laminin adhesion test, the chemotactic migration test and the enzymological method of CB. The apoptosis of the cells was detected with acridine orange-ethidium bromide fluorescent stain (AO/EB) and TUNEL.

RESULTSThe GL,GA, UA and OA could decrease the proliferative ability of PGCL3 cells, and their IC₅₀ values were 1.83 mmol/L, 145.3 μmol/L, 44.73 μmol/L and 40.71 μmol/L respectively. After treatment with 0.5 and 1.0 mmol/L GL, 25 and 50 μmol/L GA, 30 and 40 μmol/L UA, 35 and 45 μmol/L OA for 96 h, the invasive ability of the PGCL3 cells was significantly decreased compared with that of the control groups ( P < 0.01 or P < 0.001). The adhesive and migration ability, the secretion of CB and the colony-formation number in semi solid agar were significantly decreased after PGCL3 cells were treated with the above concentration of the four drugs for 96 h ( P < 0.05, P < 0.01 or P < 0.001), and the inhibition was in a dose-dependent fashion. The percentages of apoptosis of the cells were obviously increased after treatment with the above concentration of the four durgs for 48 h, compared with the control group ( P < 0.05 or P < 0.01).

CONCLUSIONSAll of the four drugs can inhibit the proliferative and invasive ability, and induce apoptosis of the PGCL3 human lung cancer cells. The mechanism of anti invasion may be to inhibit the adhesion, migration, and the CB secretion of the cells.

BACKGROUNDTo study the proliferation inhibition and anti-invasion of retinoic acid (RA) and 18β-glycyrrhetinic acid (GA) in highly metastasized lung cancer cell line (PGCL3), and to observe the combined effects of RA and GA.

METHODSThe proliferation inhibitive rate, the colony-formation rate in semi-solid agar, the invasive ability to reconstituted basement membrane, the chemotatic migration ability, the laminin adhesion ability, and the activity of cathepsin B (CB) were tested.

RESULTSTreated with RA and GA, the proliferation of PGCL3 cells were inhibited obviously, and the inhibition degree was related to the dosage of the drugs. IC₅₀ of the proliferation inhibition were 12.58 μmol/L and 145.3 μmol/L respectively. Treated with 5.0 μmol/L RA, 25 μmol/L and 50 μmol/L GA, the invasive ability was decreased significantly (P < 0.01 and P < 0.001), and the inhibition was in a dose dependent manner. In combined treatment with 5.0 μmol/L RA and 25 μmol/L GA, the inhibition of invasion was greater than the sum of them used alone. Treated with GA of above concentrations and 10 μmol/L RA, the adhesion and migration ability and the secretion of CB of the PGCL3 cells were decreased significantly (P < 0.001). Treated with GA of above concentation, the colony formation rate in semi-solid agar was decreased significantly (P < 0.001)..

CONCLUSIONSRA and GA can inhibit the proliferation and invasion of the PGCL3 human lung cancer cells and have the anti-invasion synergism. The mechanism of anti-invasion of RA and GA is to inhibit many points of invasive process.

To investigate the possible role of interleukin (IL)-10 and IL-12 in the pathogenesis of psoriatic lesions and to supply theoretical basis for the gene therapy for psoriasis, the expression of IL-10 and IL-12 P35, P40 mRNA in 12 cases of psoriatic lesions and 6 normal skin tissues was detected by using RT-PCR technique. The results showed that the expression of IL-10 mRNA in the psoriatic lesions was significantly lower than that in the normal skin tissues (P<0.001). The expression of IL-12 P35 was positive both in the psoriatic lesions and in the normal skin tissues. IL-12 P40 mRNA was expressed positively only in the psoriatic lesions but negatively in the normal skin tissues. It was suggested that IL-12 might take an important role in the occurrence and progression of psoriasis, but IL-10 might have certain role in the regression of psoriasis.

To investigate the possible role of interleukin (IL)-10 and IL-12 in the pathogenesis of psoriatic lesions and to supply theoretical basis for the gene therapy for psoriasis, the expression of IL-10 and IL-12 P35, P40 mRNA in 12 cases of psoriatic lesions and 6 normal skin tissues was detected by using RT-PCR technique. The results showed that the expression of IL-10 mRNA in the psoriatic lesions was significantly lower than that in the normal skin tissues (P<0.001). The expression of IL-12 P35 was positive both in the psoriatic lesions and in the normal skin tissues. IL-12 P40 mRNA was expressed positively only in the psoriatic lesions but negatively in the normal skin tissues. It was suggested that IL-12 might take an important role in the occurrence and progression of psoriasis, but IL-10 might have certain role in the regression of psoriasis.

PURPOSE: Rituximab with cyclophosphamide, doxorubicin, vincristine, and prednisone administered every 3 weeks (R-CHOP-21) is the standard care for diffuse large B-cell lymphoma (DLBCL). It is unknown whether the dose-dense R-CHOP (R-CHOP-14) could improve the outcome of the disease in Asian population. MATERIALS AND METHODS: Newly diagnosed DLBCL patients were centrally, randomly assigned (1:1) to receive R-CHOP-14 or R-CHOP-21. R-CHOP-14 was administered every 2 weeks, and R-CHOP-21 was administered every 3 weeks. Primary end point was disease-free survival (DFS). Secondary end points included overall survival (OS), progression-free survival (PFS), response rate and toxicities. RESULTS: Seven hundred and two patients were randomly assigned to receive R-CHOP-14 (n=349) or R-CHOP-21 (n=353). With a median follow-up of 45.6 months, the two groups did not differ significantly in 3-year DFS (79.6% for R-CHOP-14 vs. 83.2% for R-CHOP-21, p=0.311), 3-year OS (77.5% for R-CHOP-14 vs. 77.6% for R-CHOP-21, p=0.903), or 3-year PFS (63.2% for R-CHOP-14 vs. 66.1% for R-CHOP-21, p=0.447). Patients with an International Prognostic Index (IPI) score ≥ 2 had a poorer prognosis compared to those with an IPI score < 2. Grade 3/4 hematologic and non-hematologic toxicities were manageable and similar between R-CHOP-14 and R-CHOP-21. CONCLUSION: R-CHOP-14 did not improve the outcome of DLBCL compared to R-CHOP-21 in Asian population. With manageable and similar toxicities, both of the two regimens were suitable for Asian DLBCL patients. For high-risk patients with IPI ≥ 2, new combination regimens based on R-CHOP deserve further investigation to improve efficacy.
Asian Continental Ancestry Group ; B-Lymphocytes ; Cyclophosphamide ; Disease-Free Survival ; Doxorubicin ; Follow-Up Studies ; Humans ; Lymphoma, B-Cell ; Prednisone ; Prognosis ; Rituximab ; Vincristine