الملخص
Objective To study the expression and clinical significance of neural Wiskott-Alrdich syndrome protein(N-WASP)in pla-centas with preeclampsia.Methods This study included a total of 65 pregnant women:15 in the early-onset preeclampsia group,15 in the early-onset control group,15 in the late-onset preeclampsia group,and 20 in the late-onset control group.Real-time fluorescence quan-titative PCR(RT-qPCR)was used to detect the relative expression of N-WASP mRNA in placental tissues.Western blotting and immu-nohistochemistry were used to detect the expression and position of N-WASP protein in placental tissues from each group.Results RT-qPCR revealed significantly lower N-WASP mRNA expression levels in the placental tissue of the early-onset preeclampsia group compared to those in the early-onset control group(0.50±0.19 vs.0.93±0.73,P＜0.05).The N-WASP mRNA expression levels in late-onset preeclampsia placenta were significantly lower than those in the late-onset control group(0.83±0.34 vs.1.15±0.34,P＜0.05).Western blotting revealed significantly lower N-WASP protein expression in the placental tissue of early-onset preeclampsia compared to that in the early-onset control group(0.35±0.17 vs.0.72±0.21,P＜0.05).The N-WASP protein expression in late-onset preeclampsia placenta was significantly lower than that in the late-onset control group(0.39±0.16 vs.0.76±0.20,P＜0.05).The N-WASP mRNA expression in the placenta negatively correlated with the occurrence of early-onset(r =-0.37,P = 0.042)and late-onset preeclampsia(r =-0.39,P = 0.019).Immunohistochemistry revealed that N-WASP protein was localized in the cytoplasm of syncytiotrophoblasts,cytotrophoblasts,villous stromal cells,and vascular endothelial cells.Conclusion The low expression of N-WASP may be closely associated with preeclampsia.
الملخص
Acute abdominal pain is one of the most frequent complaints of patients presenting to the emergency department. Timely diagnosis and correct treatment affect the prognosis of patients. Traditional diagnosis mostly depends on physical examination and radiology. In terms of treatment, some patients need exploratory laparotomy. In recent years, with the development of interventional ultrasound, new techniques such as contrast-enhanced ultrasound, ultrasound-guided biopsy, drainage have been gradually applied to the diagnosis and treatment of surgical acute abdomen, especially the surgeon-performed interventional ultrasound, which has effectively improved the diagnostic efficiency and broadened the treatment choice. In this article, we aim to review and evaluate the application and progress of interventional ultrasound in the diagnosis and treatment of surgical acute abdomen.
الملخص
Objective To evaluate the treatment effect of using preoperative embolization combined with microsurgery for the treatment of intracranial arteriovenous malformation.Methods From January 2005 to December 2015,57 consecutive patients with intracranial arteriovenous malformation (AVM ) admitted to the Department of Neurosurgery,Xuanwu Hospital,Capital Medical University were enrolled retrospectively. They were diagnosed by magnetic resonance imaging (MRI)and digital subtraction angiography (DSA). Glubran and/or Onyx embolization was used before the microsurgery. The clinical features,treatment, and occurrence of complications were recorded.Results In 57 patients,the Spetzler-Martin grade in 35 patients were gradeⅠ-Ⅱ,in 18 were Ⅲ,and in 4 were Ⅳ. The complications occurred in 11 patients (19. 3%),including 5 with Onyx,5 with Glubran,and 1 with Onyx+Glubran. After embilization,4 patients had hemorrhage,2 had intracranial hemorrhage,1 had postoperative intracranial infection,1 had postoperative neuro-logical dysfunction,and 3 had other systemic complications after procedure. The complication rates were 14. 3%(5/35)and 22. 2%(4/18)respectively according to the Spetzler-Martin grade Ⅰ-Ⅱ and Ⅲ. Two patients of Spetzler-Martin gradeⅣhad complications. The incidence of complications in the functional areas was 20. 0%(4/20)and that in non-functional areas was 18. 9%(7/37). One patient died. DSA revealed that 4 patients had residual lesions before discharge. The cure rate was 93. 0%. The mean modified Rankin scale (mRS)score at discharge was 1. 6 ± 1. 0. The patients of mRS 0-1 accounted for 59. 6%(34/57).The mRS scores in 7 patients at discharge were higher than before treatment.Conclusion For the high-grade AVM foci with larger volume and in the deep part of brain,the treatment with microsurgery combined with embolization can be considered.