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Objective To reveal the transmiting discipline of parameters and define therapy time window of ischemia penumbra by continuous detection of diffusion tensor imaging(DTI) o Methods 35 patients with acute cerebral infarction in different phases were imaged with conventional DWI and DTI.To measure DCavg,FA,RA,1-VR,ADC in different regions of interest (ROI).Results Change in DCavg had tendency which appear reduced obviously,elevated,renormalized,increased.FA/RA/1-VR of lesions elevated in hyperacute stroke and unrecovered declined acute to sub-acute stroke.Difference of DCavg,FA,RA,1-VR between central and periphral parts of lesions were significant in hyperacute and acute stroke.ADC of lesions were significant in hyperacute and acute stroke.Difference of FA between central and peripheral parts of lesions were significant in acute stroke(P ＜ 0.01).Difference of ADC,DCavg between central and peripheral parts of lesions were significant in acute and subacute stroke(P ＜ 0.01).Conclusion It had characteristic discipline in changes of DCavg,FA,RA,1-VR,ADC,The peripheral parts of lesions in hyperacute and acute stroke maybe ischemia penumbra,DTI has important practical value for clinical.
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Objective To investigate application of diffusion tensor tractography (DTT) on evaluating motor dysfunction degree of patients with cerebral infarction and explore the relationship between infracted focus and cortical spinal tract(CST).Methods Forty patients with cerebral infarctions in the different periods and 30 healthy volunteers were enrolled our study.They all underwent DTT check and then established CST.Meantime,all the patients were measured ADL score according to activities of daily living (ADL) on admission and two months after the onset.Results DTT image was made for both in patients and health control people.The CST was built in people in control group and its shape was like the adults'.Its shape was from the precentral gyrus down to internal capsule and continued to pontine and medulla oblongata.Each successive was form good consistency.The DTT image of patients' health side was like normal and injury corticospinal tract was affected by influence of infarction area at different level,manifested as loss of discontinuity and anatomical configuration consistency.Based on the degree of CST,there were 9 cases in grade Ⅰ,20 cases in grade Ⅱ and 11 cases at grade Ⅲ.DTT image showed that the damage level of CST had an negative relation with ADL score at 2 month after therapy (r =-0.914,P ＜ 0.05).Conclusion DTT can show the spatial positions of infarctions and CST at non-invasive lesion and analyze the influence of infarctions and corticospinal tract.Therefore,it can serve as the objective proof for judging the injury of the motor function and evaluating prognosis.
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Objective To investigate the effect of disodium cantharidinateon in vitro lymphocyte immune response in lung cancer patients.Methods Twenty non-small cell lung cancer patients diagnosed by pathological diagnosis were selected.The effects of different concentrations of disodium cantharidinate and vitamin B6 on lymphocyte proliferation and CD4 + CD25 + T cells,CD25 + FOXP3 + T cells,CD4 + and CD8 + T cells were detected by methyl thiazolyl tetrazolium assay and flow cytometry.Results When the concentrations of disodium cantharidinate and vitamin B6 was less than 10 μg/ml,with the growth of concentration,it stimulated the proliferation of peripheral blood lymphocytes.When the concentration was more than 10 μg/ml,with the growth of concentration,the absorbance value decreased,and the stimulating effect weakened.When the concentration of disodium cantharidinate and vitamin B6 injection was less than 10 μg/ml,with the growth of concentration,CD4 +/CD8 + ratio increased significantly,and CD4 + CD25 +/CD4 + and CD25 + FOXP3 + T cells were significantly lower,which showed statistically significant differences (t =2.171,P =0.032 ; t =2.103,P =0.041 ; t =3.662,P =0.002 ; t =3.201,P =0.003 ; t =3.233,P =0.003).But when the concentration was more than 10 μg/ml,The differences of CD4 +/CD8 + ratio,CD4 + CD25 +/CD4 + and CD25 + FOXP3 + T cells in 10,15,20 μg/ml groups were not statistically significant,which showed that disodium cantharidinate and vitamin B6 injection had a positive effect on enhancing the immune function of lymphocytes in lung cancer in a concentration dependent manner,but high concentration was unhelpful.Conclusion Disodium cantharidinate and vitamin B6 injection can promote lung cancer in vitro lymphocyte proliferation as well as increase its immunity in a certain range.
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Objective Toinvestigatetheexpressionof SIRT1anditsassociationwith clinicopathologic features in breast carcinoma with type 2 diabetes mellitus.MethodsThe expression of SIRT1 in 30 breast cancer with type 2 diabetes mellitus,65 samples of breast cancer without diabetes mellitus and 18 samples of corresponding normal breast tissues was investigated using immunohistochemistry.ResultsThe positive rate of SIRT1 in breast cancer tissues was significantly higher than that breast cancer with type 2 diabetes mellitus and normal breast tissue (P ＜0.05). In breast cancer with type 2 diabetes mellitus group.The positive rate of SIRT1 was significantly higher than that normal breast tissue(P ＜0.05).The expression of SIRT1 was positively correlated with the number of lymph node(P =0.011),pTNM tumor stage (P =0.028), p53 (P =0.003) and Her-2 (P =0.031) in breast cancer with type 2 diabetes mellitus group. The expression level of SIRT1 in lymph node-positive group was higher than that in lymph node-negative group (P ＜0.05).The expression level of SIRT1 was in lymph node-positive group was higher than that in lymph node-negative group(P ＜0.05).ConclusionSIRTI was up-regulated in breast cancer with type 2 diabetes mellitus,but its expression was lower than that breast cancer without diabetes mellitus,and was associated with the progression of diabetes mellitus. SIRT1 was positively correlated with lymph node, pTNM tumor stage,p53 and Her-2, SIRT1 may be a novel biological parameter to evaluate the malignant degree of breast carcinoma and to predict prognosis of breast cancer.