Ruizchristie0296
Forkhead Box M1 (FOXM1) and aryl hydrocarbon receptor (AHR) signaling pathway participate in meningioma development, but their correlation was inadequately studied. The study is aimed to uncover their functions and correlation in malignant meningioma.
Quantitative real-time polymerase chain reaction (qRT-PCR) was performed to detect FOXM1 expression in malignant meningioma and adjacent tissues. The viability, proliferation, apoptosis and tube formation of meningioma IOMM-Lee and CH157-MN cells transfected with overexpressed FOXM1 were examined with MTT assay, clone formation assay, flow cytometry and tube formation assay, respectively. The expressions of AHR and cytochrome P450 family 1 subfamily A member 1 (CYP1A1) in meningioma and adjacent tissues were detected using qRT-PCR, and the correlation of AHR with FOXM1 was analyzed with Pearson's correlation analysis. Western blot was conducted for measuring the expressions of vascular endothelial growth factor A (VEGFA), AHR and CYP1A1. The cell viability, proliferation, apoptosis and tube formation capability were further determined after treatment with StemRegenin 1 (SR1) (an AHR signaling pathway inhibitor), and transfected with or without overexpressed FOXM1.
FOXM1, AHR and CYP1A1 expressions were upregulated in malignant meningioma tissues. Overexpressed FOXM1 promoted meningioma cell viability, proliferation, tube formation, upregulated expressions of AHR, CYP1A1 and VEGFA, and inhibited the cell apoptosis. AHR was positively correlated with FOXM1. SR1 suppressed meningioma cell growth and the AHR signaling pathway, and also reversed the active effect of FOXM1 on meningioma cells.
FOXM1 may promote malignant meningioma via the AHR signaling pathway, which improved the current understanding of the role of FOXM1 in meningioma.
FOXM1 may promote malignant meningioma via the AHR signaling pathway, which improved the current understanding of the role of FOXM1 in meningioma.Brain ischaemia is one of the leading causes of mortality and disability worldwide, and the damage caused by ischaemia not only induces primary damage but also that induced by ischaemia-reperfusion (I/R) injury. Multiple processes including inflammation and oxidative stress response play important roles in the development of brain ischaemia injury. Sevoflurane is a well-known volatile anaesthetic, and a recent study discovered the role of sevoflurane in suppression of the inflammation response process via inhibition of inflammatory infiltrates and production, maintaining the balance of cytokine responses, although the possible mechanism was not fully clear. NLRC3 is a member of the nucleotide-binding domain and leucine-rich repeat containing (NLR) family, and it has been regarded as a regulator of the inflammation process via the regulation of inflammasome formation, which is an initiator of inflammatory events. In the present study, we found that overexpression of NLRC3 reduced the apoptosis in a cellular model of ischaemia reperfusion, and the expression of pro-inflammatory cytokines was also decreased. Further study found that these effects might be mediated by the TRAF6/TLR4/NF-kB signalling pathway. Thus, we speculate that overexpression might enhance the effect of sevoflurane in inhibiting the inflammatory response process in an ischaemia reperfusion model, which might be a new therapeutic strategy.
To investigate the effects of crocin on proliferation and migration of endogenous neural stem cells and the Notch1 signalling pathway in rats after cerebral ischemia reperfusion.
SD rats were randomly divided into the sham operation group, model group and administration group (crocin). Middle cerebral artery occlusion (MCAO/R) was used to establish the focal cerebral ischemia reperfusion model in rat. After surgical treatment, the treatment group was treated with crocin. read more Quantitative polymerase chain reaction (qPCR) was used to detect the changes in the expression of Notch1, Bax and bcl-2 proteins in rat endogenous neural stem cells after cerebral ischemia reperfusion. ELISA was used to detect changes in inflammatory factors. Neural stem cells were cultured in vitro, which were divided into the normal control group, the hypoglycaemic deprivation/reoxygenation group, hypoglycaemic deprivation/reoxygenation group with alow concentration of crocin, and hypoglycaemic deprivation/reoxygenation group with ahighng the Notch signalling pathway.
Despite the progress in current treatments, the event-free survival of high-risk neuroblastoma (HR-NB) patients does not exceed 40%-50%, and the prognosis of refractory or relapsed patients is poor, still representing a challenge for pediatric oncologist. Therapeutic Iodine-131 meta-iodobenzylguanidine (Th-
I-MIBG) is a recognized safe and potentially effective treatment for NB.
This retrospective study reports the outcomes of 28 MIBG-avid NB patients with advanced disease either refractory or relapsed, which was undertaken from 1996 to 2014. Th-
I-MIBG was administered shortly before (median 17 days) high-dose chemotherapy with busulfan and melphalan (HD-BuMel) and autologous stem cell rescue (ASCR) at the Gaslini Institute in Genoa, with the aim of analyzing the feasibility, safety, and efficacy of this approach.
Engraftment occurred in all patients after a median of 14 (11-29) and 30 days (13-80) from ASCR for neutrophils and platelets, respectively. No treatment-related deaths were observed. Theith proven expertise.
Th-131 I-MIBG administered shortly before HD-BuMel is a safe and effective regimen for patients with advanced MIBG-avid NB. These patients should be managed in centers with proven expertise.
This study aimed to evaluate the utilization of aspirin for preeclampsia prevention before and after implementation of a screening tool during nuchal translucency (NT) ultrasound.
One-year prospective cohort study of patients at high risk for preeclampsia after the implementation of a screening tool (postscreen) administered to all patients at check in for NT (11-13 weeks) ultrasound. Prospective cohort was compared with one-year retrospective cohort (prescreen) the year prior (2017). All patients who presented for NT ultrasound in both cohorts were evaluated for the presence of one or more risk factor for preeclampsia with screening tool collected prospectively and chart review retrospectively. Provider recommendation for aspirin determined by documentation in prenatal record. Primary outcome was rate of provider recommendation for aspirin pre versus post screening tool, compared by Chi-square test and adjusted for potential confounders with multiple regression analysis.
Pre- (
= 156) and postscreen (
= 136) cohorts were similar except for race and multifetal gestation.