Objective To investigate the clinical application value of ultrasonic rapid paraffin section in intraoperative diagnosis of breast tumor.Methods Twenty-five patients of breast tumor specimens were admitted from December 2012 to December 2013,including 19 cases from surgery,4 cases from gynecology,2 cases from medical patients.Twenty-five cases were used with ultrasonic rapid paraffin section and the remaining tissues were used as conventional paraffin section,then compared the two methods.Results This study took two different ways but the same results were achieved with 23 cases,the diagnostic accuracy was 92.0％ (23/25).Two of 25 cases were misdiagnosed with the misdiagnosis rate was 8.0％ (2/25).One patient appeared delayed diagnosis,accounting for 4.0％(1/25).After 25 cases of breast cancer biopsy treated with ultrasonic rapid paraffin section,benign lesions was 20 patients,with the highest incidence of breast adenosis of 9 cases (36.0％,9/25).The malignant lesions was 4 patients with invasive ductal carcinoma in which the highest incidence,accounting for 3 cases (12.0％,3/25).Delay diagnosed 1 case of intraductal papilloma.Conclusion Ultrasonic rapid parafifin section is widely used in clinical application,with high quality and diagnostic biopsy rate and other characteristics,so it is worthy of clinical application.

Objective To investigate the relationship between serum anticardiolipin antibody-immune globulin G (ACA-IgG),interleukin-10 (IL-10 ),IL-17 levels and intracranial large-artery atherosclerotic stenosis in patients with ischemic stroke. Methods From March 2014 to March 2015,a total of 176 consecutive patients with the first-ever ischemic stroke admitted to the Department of Neurology,Liaocheng People′s Hospital,Shandong Province,China,and performed DSA were enrolled prospectively. Seven of the patients with cardiogenic embolism,5 with moyamoya disease,8 with arteritis,2 with artery dissection,9 with autoimmune diseases or acute and chronic inflammation were excluded,21 with extracranial arterial stenosis were not enrolled,and finally 124 were enrolled in the study. According to the findings of DSA,the degrees of intracranial large artery stenosis were divided into a stenosis-free group (n = 34),a mild-stenosis group (n = 30),a moderate-stenosis group (n = 32),and a severe-stenosis group (n = 28). The differences of serum ACA-IgG,IL-10,IL-17 levels and baseline factors of the 4 groups were compared,and multivariate logistic regression analysis was used to analyze several factors that affected intracranial large-artery stenosis. Results There were no significant differences in sex,age,alcohol consumption rate,smoking rate,and incidence of hyperlipidemia among the 4 groups of patients (all P >0. 05). Compared with the stenosis-free group,there were significant differences in the incidences of hypertension and diabetes among the mild-stenosis,moderate-stenosis and severe-stenosis groups (the incidence of hypertension,80. 0% [n = 24],93. 8% [n = 30],89. 3% [n = 25]vs. 55. 9% [19 cases];χ2 = 8. 271,8. 920,and 10. 877,respectively;P = 0. 038,0. 032,and 0. 014,respectively). The incidences of diabetes were 33. 3% (n = 10),43. 8% (n = 14),60. 7% (n = 17)vs. 8. 8% (n = 3),(χ2 = 7. 960, 8. 733,and 9. 285,respectively;P = 0. 043,0. 035,and 0. 027,respectively). Incidence of diabetes of the severe-stenosis group was higher than that of the mild-stenosis group (χ2 = 9. 348,P = 0. 025). There were no significant differences in the incidences of hypertension and diabetes among other groups (all P >0. 05). There were significant differences in ACA-IgG levels (23 ± 5,39 ± 8,51 ± 9,and 65 ± 10 kU/ L);IL-10 levels (108 ± 33,85 ± 25,77 ± 21,and 62 ± 19 ng/ L),and IL-17 levels (38 ± 10,58 ± 22,63 ± 31, and 75 ± 26 ng/ L)among the stenosis-free,mild,moderate and severe-stenosis groups (F = 17. 754,9. 827, and 12. 656;respectively;all P < 0. 01). Compared with the stenosis-free group,the ACA-IgG and IL-17 levels of the patients in the mild,morderate,and severe stenosis groups increased significantly (ACA-IgG level:t =2. 307,2. 559,and 3. 374,respectively;P = 0. 026,0. 014,and 0. 001,respectively,the IL-17 levels:t =2. 183,2. 549 and 3. 159,respectively;P = 0. 037,0. 013,and 0. 002,respectively),while the IL-10 level decreased significantly. There were significant differences among the groups (t = 2. 036,2. 351,and 2. 762, respectively;P = 0. 042,0. 023,and 0. 006,respectively). Compared with the mild-stenosis group,the ACA-IgG and IL-17 levels of the severe stenosis group increased significantly (t = 3. 154 and 2. 976 respectively;P = 0. 002 and 0. 004 respectively). There were no significant differences among the pairwise comparisons of other groups (P >0. 05). The results of logistic regression analysis showed that hypertension, diabetes,ACA-IgG level,and IL-17 level were the risk factors for intracranial large-artery stenosis (OR, 3. 043,95% CI 1. 606 -5. 875,P = 0. 003;OR,2. 912,95% CI 1. 513 -5. 824,P < 0. 01;OR,1. 837,95% CI 2. 057-3. 416,P = 0. 037;OR,1. 453,95% CI 1. 346 -2. 721,P = 0. 014). Conclusion ACA-IgG and IL-17 may play an important role in the occurrence and development processes of intracranial large-artery atherosclerotic stenosis.

OBJECTIVETo explore the role of microRNA on the myocardial microvascular endothelial cells (CMECs) of ischemic heart rats in the process of angiogenesis and related regulation mechanism.

METHODSMyocardial ischemic rats model was established by coronary ligation.Seven days after operation, the ischemic CMECs were cultured by the method of planting myocardium tissue and identified by immunocytochemistry to observe the biological characteristics of ischemic CMECs angiogenesis, to determine the window period of migration, proliferation, tube formation in the process of its angiogenesis. Dynamic expression changes of microRNA in the process of ischemic CMECs angiogenesis was detected using microRNA chip and further verified by real-time PCR, the core microRNA of the ischemic CMECs was defined and the predicted target genes of core microRNA were determined by bioinformatics methods and real-time PCR. At the same time, the protein expression of target gene and angiogenesis related genes of p38MAPK, PI3K,Akt,VEGF were measured by Western blot.

RESULTSThe CMECs of rats presented typical characteristics of microvascular endothelial cells, and factor VIII, CD31 related antigens were all positively stained by immunocytochemical analysis. The migration window period was on the first day, and the tube formation window period was on the second day of both control and ischemic groups, while the proliferation window period was on the third day for the normal group, and the sixth day for ischemic group. According to the expressional difference and their relationship with angiogenesis, miRNA-223-3p was ultimately determined as the core microRNA in the process of ischemic CMECs angiogenesis, real-time PCR verified this hypothesis. Bioinformatics methods predicted that Rps6kb1 is the target genes of miRNA-223-3p, the pathway analysis showed that Rps6kb1 could regulate angiogenesis via HIF-1α signal pathway. Moreover, the mRNA and protein expression of VEGF, p38MAPK, PI3K,Akt, which were the downstream molecules of Rps6kb1/HIF-1α signal pathway, were also significantly downregulated in ischemic CMECs from migration and proliferation stage.

CONCLUSIONOur results show that the miRNA-223-3p is the core microRNA of ischemic CMECs angiogenesis. MiRNA-223-3p could regulate Rps6kb1/HIF-1α signal pathway, inhibit the process of migration and proliferation of ischemic CMECs angiogenesis. MiRNA-223-3p is thus likely to be a core target for enhancing angiogenesis of ischemic heart disease.

Animals ; Blotting, Western ; Endothelial Cells ; drug effects ; physiology ; Endothelium, Vascular ; Hypoxia-Inducible Factor 1, alpha Subunit ; biosynthesis ; MicroRNAs ; pharmacology ; Myocardial Ischemia ; Myocardium ; Myocytes, Cardiac ; Neovascularization, Pathologic ; Phosphatidylinositol 3-Kinases ; Platelet Endothelial Cell Adhesion Molecule-1 ; RNA, Messenger ; Rats ; Ribosomal Protein S6 Kinases, 70-kDa ; biosynthesis ; Signal Transduction