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Objective:To investigate the expression of circ0008234 and miR-1205 in breast cancer and the oncology characteristics of CT.Methods:40 patients with breast cancer were collected as observational objects from Jan.2018 to Dec.2018 and 40 patients without breast cancer were selected as the control group. The expression levels of circ0008234 and miR-1205 of all patients were estimated by quantitative real-time polymerase chain reaction. Bioinformatics was used for the predictions of circ0008234 target miRNA. A dual-luciferase reporter assay was used to confirm the interaction between circ0008234 and miR-1205. All patients of the observation group were examined by multi-slice CT. CT images were analyzed through observing tumor size, shape, calcification area, lymph node metastasis and margin. The correlation between CT signs and the expression of circ0008234 and miR-1205 was further analyzed.Results:The levels of circ0008234 of observation group were significantly higher than those of the control group (2.23±0.86, 1.07±0.37, P=0.00) , but the expression levels of miR-1205 were lower than the control group (0.76±0.29, 1.04±0.29, P=0.00) . In the observation group, there were no significant differences in the expression of circ0008234 and miR-1205 among patients with different tumor marginal morphology and micro calcifications. However the expression of circ0008234 in patients with regular lump form were significantly higher than those in patients with inregular form (2.52±0.88, 1.91±0.74, P=0.025) , and the expression of miR-1205 were lower than those in patients with inregular form (0.66±0.30, 0.86±0.25, P=0.025) . In the observation group, the expression of circ0008234 in patients with mass diameter≥2 cm were significantly higher than those in patients with mass diameter<2 cm (2.59±0.95, 1.69±0.17, P=0.001) , but the expression of miR-1205 were lower than those in patients with mass diameter<2 cm (0.65±0.21, 0.92±0.33, P=0.003) . In the observation group, the expression of circ0008234 in patients with lymph node metastasis were higher than those without lymph node metastasis (2.55±1.09, 1.94±0.44, P=0.022) , but the expression of miR-1205 in patients with lymph node metastasis were lower than those without lymph node metastasis (0.65±0.26, 0.85±0.30, P=0.027) . miR-1205 was verified as a direct target of circ0008234 by luciferase assay. circ0008234 could negatively regulate the expression of miR-1205. Conclusion:There is a correlation between CT imaging signs and the expression of circ0008234 and miR-1205 in patients with breast cancer, which can provide more reference for the judgment of malignant degree and prognosis of patients with breast cancer.
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Objective To investigate the clinical value of digital subtraction angiography (DSA) interventional thrombolysis in the treatment of acute cerebral infarction.Methods 35 patients with acute cerebral infarction were divided into 6h group and 7-12h group in accordance with DSA from the onset time.Before and after thrombolytic therapy,the nerve function defect angiographic recanalization rate and postoperative score of therapeutic effect evaluation were compared between the two groups.Results In the 6h group,the recanalization rate ＞ 70％ (33.33 ％) and the recanalization rate ＞50％ (83.33％) were significantly higher than those in the 7-12h group (18.18％,55.55％),and the differences were statistically significant(x2 =6.56,5.02,all P ＜ 0.05).Before treatment,the ESS score between the two groups was not statistically significantly different(t =0.83,P ＞ 0.05).After treatment for 1d,7d,14d,ESS scores of the two groups [(62.44 ± 9.82) points,(68.95 ± 11.23) points,(73.89 ± 11.24) points,(54.67 ± 9.11) points,(58.02 ± 10.47) points,(61.43 ± 10.23) points] were significantly higher than those before treatment [(42.12 ± 8.79) points,(41.92 ± 9.02) points,t =6.87,7.03,7.92,6.03,6.56,6.77,all P ＜ 0.05].After treatment for 1 d,7d,14d,the ESS scores of the 6h group [(62.44 ± 9.82) points,(68.95 ± 11.23) points,(73.89 ± 11.24) points] were significantly higher than those of the 7-12h group [(54.67 ± 9.11) points,(58.02 ±10.47) points,(61.43 ± 10.23) points],and the differences were statistically significant(t =5.45,5.10,4.23,all P ＜ 0.05).Conclusion DSA interventional thrombolytic therapy can significantly improve the neurological status of the patients,and the onset time is shorter.The clinical treatment is better.In the clinical treatment,we should grasp the opportunity.
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Objective To analyze the clinical value of X ray examination, CT examination and MRI examination in the diagnosis of giant cell tumor of bone.Methods 50 patients with giant cell tumor of bone confirmed by postoperative pathology were selected.The patients' X ray, CT scan and MRI imaging examination data were retrospectively analyzed, and the imaging features of giant cell tumor of bone were discussed and summarized.Results The rate of CT examination and MRI examination in the diagnosis of bone destruction was higher than X ray examination, but the difference was not statistically significant (x2=4.181,P>0.05).CT examination and MRI examination in the soap bubble sign, bone crest, liquid plane and soft tissue mass in the diagnostic rate compared with X ray examination was significantly higher, the difference was statistically significant (x2=5.333,22.941,30.000,38.400,64.000,14.166,6.102,all P<0.05).Conclusion The diagnostic accuracy of CT and MRI in giant cell tumor of bone is higher than X ray, but the value of MRI examination in the diagnosis of edema near the tumor is better.
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AIM:To investigate the impact of excessive endoplasmic reticulum stress on apoptotic cell death in a rat model of chronic cyclosporine A ( CsA ) nephrotoxicity .METHODS: Male Sprague-Dawley rats on a low-salt diet were subcutaneously injected with vehicle (olive oil, 1 mL· kg-1· d-1) or CsA (15 mg/kg) daily for 1 or 4 weeks.Tu-bulointerstitial fibrosis and apoptotic cell death were estimated by trichrome staining and TUNEL staining .In addition , im-munohistochemistry and immunoblotting were used to evaluate the expression of immunoglobulin -binding protein ( BiP) , eu-karyotic initiation factor 2α(eIF2α), growth arrest and DNA damage-inducible protein 153 (GADD153), caspase-12 and caspase-3.RESULTS:The rats treated with CsA for 1 week did not develop tubulointerstitial fibrosis and TUNEL-positive cells, whereas 4-week treatment with CsA induced typical tubulointerstitial fibrosis and increased TUNEL-positive cells. CsA induced a significant increase in BiP and caspase-12 expression peaked at 1 week, and then returned to normal levels at 4 weeks.In contrast, the expression of eIF2α, GADD153 and caspase-3 in CsA-treated rat kidneys were significantly in-creased in a time-dependent manner .CONCLUSION:Excessive endoplasmic reticulum stress causes apoptotic cell death by depleting molecular chaperones and stimulating the proapoptotic pathway in chronic CsA nephrotoxicity .