ABSTRACT
@#To investigate the inhibitory effect of wogonin on glucose metabolism in human gastric carcinoma MGC-803 cells and its underlying mechanism, Amplex Red Glucose/Glucose Oxidase Assay Kit was used to explore the influence of wogonin on glucose uptake of MGC-803 cells and lactate assay kit was adopted to evaluate the lactate generation of MGC-803 cells. Annexin V/PI staining assay was performed to observe the apoptotic rate of MGC-803 cells. Changes in the expression of hexokinase 2(HK II), glucose transporter 1(GLUT1), pyruvate dehydrogenase kinase(PDHK)and lactate dehydrogenase A(LDH-A)were assessed by Western blot. These results demonstrated that wogonin significantly reduced glucose uptake of MGC-803 cells at certain concentration. Meanwhile, wogonin apparently reduced the lactate generation of MGC-803 cells, without inducing notable cell apoptosis. Besides, with the impact of wogonin, the expression of glucose metabolism related proteins declined obviously. In a word, wogonin could inhibit the glucose metabolism of MGC-803 cells without inducing apparent apoptosis, which may be related to its inhibitory influence on the proteins in glucose metabolism of MGC-803 cells.
ABSTRACT
Objective To study the values of quantitative assessment of extraocular muscles in diagnosing the thyroid associated ophthalmopathy(TAO).Methods The maximum section area,short and long diameters of extraocular muscles on orbital coronal CT were measured and the value of R was calculated in 50 healthy persons and 50 patients with TAO.Results The maximum section areas of 228 extraocular muscles in 50 patients with TAO increased,of them,inferior rectus(30.3%) and mediate rectus muscle(23.2%) were common,followed by superior rectus,lateral rectus and superior oblique muscle.Their maximum section areas(70.21 mm2,56.93 mm2,64.06 mm2,58.51 mm2,20.65 mm2,respectively) and the values of R(0.61,0.55,0.61,0.50,0.52,respectively) were larger than that in healthy group(27.72 mm2,27.07 mm2,26.93 mm2,36.74 mm2,9.42 mm2 respectively in maximum section areas) and(0.41,0.35,0.60,0.34,0.44 in the values of R,respectively).There were statistical significant differents between them.Conclusion The quantitative coronal CT measurement,especially the values of R can assess enlargement of extraocular muscles accurately,which may be helpful in diagnosis of TAO.