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Objective To investigate the effects of metformin on cell proliferation in differentiation degree of endometrial carcinoma cells and related mechanisms. Methods The endometrial cancer cell lines Ishikawa and AN3CA were used. Cell proliferation was assessed after exposure to metformin with or without epithelial growth factor receptor (EGFR) inhibitor AG1478 by cell counting kit-8 (CCK-8) method. EGFR mRNA was determined by reverse transcription (RT)-PCR. The expression of phosphorylation EGFR (p-EGFR) and total EGFR (t-EGFR) and phosphorylation extracellular signal-regulated kinase 1/2 (p-ERK1/2) and total ERK1/2 (t-ERK1/2) were examined by western blot. Results (1)CCK-8 experiment showed that metformin could inhibit the proliferation of endometrial cancer cells in a time-dependent manner and a dose-dependent manner (P0.05). But the expression levels of p-EGFR and p-ERK1/2 protein were significantly lower between two groups (P<0.01), which showed a time-dependent manner(P<0.01). Conclusion Metformin could inhibit the proliferation of endometrial cancer cells, the inhibition is associated with the differentiation degree of cancer cells. Metformin could enhance the EGFR signaling pathway inhibitor AG1478 inhibition of endometrial cancer cells, which may inhibit EGFR expression of phosphorylated proteins to inhibit the phosphorylation of ERK1/2 proteins and then inhibit proliferation of endometrial cancer cells.
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ObjectiveTo observe the changing of the level of high-sensitivity C-reactive protein level and serum lipids in elderly patients with early chronic kidney disease. Methods90 cases of early chronic kidney disease were collected and 90 cases without chronic kidney disease served as control.The levels of total cholesterol(TC),triglyeride(TG),high density lipoprotein(HDL),low density lipoprotein(LDL)and high-sensitivity C-reactive protein (hs-CRP)were measured. ResultsThere was significant difference between early chronic kidney disease group and the control group on TG,HDL and hs-CRP(all P＜0.05).The level of HDL in study group was significantly lower than those in control group(P＜0.05＝. ConclusionThe patients with early chronic kidney disease often had hypertriglyceridemia,declining HDL and elevating hs-CRP.It should be paid attention early.
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Objective To study the clinical features and treatment of the patients with Takayasu's arteritis (TA) with cerebral infarction.Methods Retrospective analysis was done in 14 TA patients with cerebral infarction from 1998 to 2003.Results The patients with TA complicated with cerebral infarction accounted for 10.6%(14/132) of all the hospitalized patients with TA.The time from cerebral infarction to the symptom onset of TA was 1 month to 15 years.In all the cases,there were more than 3 branches stenosis or occlusion of aortic arch and hemiparalysis.Basal ganglion was the most frequently involved infarction area.Corticosteroid and cytotoxic drugs were effective therapy.Conclusion The cases of TA with cerebral infarction have extensive arterial lesions.We must pay attention to it to avoid misdiagnosis.The key point of treatment is to control the primary disease.
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Fourteen kinds of ethyl ester of fatty acids form Hai Haozi(Sargassum pallidum) are analysed by GC methods.They are identified by comparision of their rentention time with those of known standards and quantitated by using an internal standard.It shows that this drug contains lots of saturated and unsaturated fatty acids.The analytical resulits may provide material basis for futher research of Hai Haozi.