AIM: To explore the effect of oxides of low density lipoprotein (OX - LDL)on apoptosis in vas- cular endothelial cells(EC) and its possible mechanisms. METHODS: Culted vascular ECS were incubated with OX - LDL(0.1?g/L or 0. 3?g/L) for 4 hours, flow cytometer with PI staining methed was used to determine the rate of cellular apoptosis, gel - electrophoresis was performed to observe foe DNA ladder of apoptosis, cellular RNA was isolated and reverse transcription-polymerase chain reaction (RT - PCR)was performed to determine Fas antigen ex- pression. RESULTS:OX - LDL treatment induced apoptosis in EC dose - dependently. No DNA ladder was ob- served in control EC. But it presented in EC beated with low dose of OX - LDL, and was even more when beted with higher dose of OX - LDL. RT - PCR revealed Fas antigen baldly had any expression in basic condition, OX - LDL treatment induced Fas antigen in EC in a dose dependent manner. CONCLUSION: OX - LDL can induce apoptosis in EC, upregulaton of Fas antigen expression maybe one of the possible mechanisms.

Objectives To investigate the relationship between angiogenesis and vascular endothelial growth factor (VEGF) and its receptor in patients with psoriasis. Methods The expression of VEGF and its receptor KDR, and micro-vascular density (MVD) were measured in 42 patients with psoriasis vulgaris and 15 normal controls by in situ hybridization and immunohistochemistry technique, respectively. The concentration of VEGF in sera was measured by double antibody sandwich enzyme-linked immunosorbent assay (ELISA) in patients with psoriasis vulgaris and normal controls. Results ①The expression of VEGF mRNA and its protein, KDR, and MVD in psoriatic lesions were significantly higher than those in the normal controls (P

Objective To investigate the effect of telephone call follow-up on compliance with opening-mouth exercises among nasopharyngeal carcinoma(NPC)patients with radiotherapy-induced difficulty in opening mouth.Methods Sixty four nasopharyngeal carcinoma patients undergoing radiotherapy were randomized into control group(n=31)and observation group(n=31).The former group was given health education and instructions for functional exercises of opening mouth at discharge and regular return visits after discharge,and the observation group received regular telephone call follow-ups by an appointed nurse besides the same treatment as in the control group.The two groups were compared in regard to the compliance with the exercises of opening mouth and the incidences of difficulties in opening mouth at the first and second years after discharge. Results The compliance of the observation group was significantly higher that in the control group(P<0.01).The incidences of difficulties in opening mouth in the observation group were significantly smaller than that in those of the control at the first and second years after discharge(P<0.01). Conclusion Telephone call follow-ups are effective in the improvement of compliance of functional exercises in NPC patients with radiotherapy-induced difficulty in opening mouth,the reduction of the incidence of mouth-opening problems and the improvement of their quality of life.

ObjectiveTo observe the therapeutic efficacy of L-carnitine on patients with microvascular angina (MVA).Methods48 MVA patients were divided randomly into the trail group and control group with 24 cases in each group. The patients of the trail group were treated with L-carnitine vein dropping, those of the control group took isosorbide-mononitrate orally. All treatment lasted for 12 weeks.ResultsAfter the treatment, attack times of MVA and consumption of nitroglycerin of the patients in two groups decreased obviously ( P<0.01). The time for inducing angina, the time for 0.1 mV ST segment depression, the total exercise time and ∑ST depression by exercise were improved obviously ( P<0.05). The serum total cholesterol, triglyceride and low density lipoprotein cholesterol decreased by 20.3%, 32.7% and 16.6% respectively, and high density lipoprotein cholesterol levels increased by 34.5% in the trail group ( P<0.01).ConclusionL-carnitine has affirmative effect on MVA, same as isosorbide-mononitrate.