Notes

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Recent cooperative trials in pediatric acute lymphoblastic leukemia (ALL) report long-term event-free survival (EFS) of greater than 80%. In this study, we analyzed the outcome and prognostic factors for patients with precursor B cell (Pre-B) ALL (n=405) diagnosed during a ten year period (2005 - 2015) at our institution.

All patients were treated with a uniform institutional regimen based on four risk groups, except for steroid type; patients diagnosed up till 2008 receiving dexamethasone, while subsequent patients received prednisolone. None of the patients received cranial irradiation in first complete remission.

The 10-year EFS and overall survival (OS) was 76.3±2.3% and 85.1±1.9%. Ten-year cumulative incidence of relapse, any central nervous system (CNS) relapse and isolated CNS relapse was 20.8±2.2%, 3.7±1.1% and 2.5±0.9% respectively. A comparison of established, good prognosis genetic abnormalities showed that patients with high hyperdiploidy had significantly better EFS than those with ETV6-RUNX1 rearrangement (10-year EFS of 91.2±3.0% vs. 79.5±4.4%, p=0.033). For the overall cohort, male gender, infant ALL, initial CNS involvement, and Philadelphia chromosome (+) ALL were significant factors for lower EFS in multivariate study, while high hyperdiploidy conferred favorable outcome. For high and very high risk patients (n=231), high hyperdiploidy was the only significant factor for EFS in multivariate study.

Regarding good prognosis genetic abnormalities, patients with high hyperdiploidy had significantly better outcome than ETV6-RUNX1 (+) patients. High hyperdiploidy was a major, favorable prognostic factor in the overall patient group, as well as the subgroup of patients with higher risk.
Regarding good prognosis genetic abnormalities, patients with high hyperdiploidy had significantly better outcome than ETV6-RUNX1 (+) patients. High hyperdiploidy was a major, favorable prognostic factor in the overall patient group, as well as the subgroup of patients with higher risk.
The objective of this study was to define the learning curve required to attain satisfactory oncologic outcomes of cervical cancer patients who were undergoing open or minimally invasive surgery for radical hysterectomy, and to analyze the correlation between the learning curve and tumor size.

Cervical cancer patients (stage IA-IIA) who underwent open radical hysterectomy (n=280) or minimal invasive radical hysterectomy (n=282) were retrospectively reviewed. The learning curve was evaluated using cumulative sum of 5-year recurrence rates. Survival outcomes were analyzed based on the operation period ("learning period," P1 vs. "skilled period," P2), operation mode, and tumor size.

The 5-year disease-free and overall survival rates between open and minimally invasive groups were 91.8% and 89.0% (p=0.098) and 96.1% and 97.2% (p=0.944), respectively. The number of surgeries for learning period was 30 and 60 in open and minimally invasive group, respectively. P2 had better 5-year disease-free survival than P1 after adjusting for risk factors (hazard ratio, 0.392; 95% confidence interval, 0.210 to 0.734; p=0.003). All patients with tumors < 2 cm had similar 5-year disease-free survival regardless of operation mode or learning curve. Minimally invasive group presented lower survival rates than open group when tumors ≥ 2 cm in P2. Preoperative conization improved disease-free survival in patients with tumors ≥ 2 cm, especially in minimally invasive group.

Minimally invasive radical hysterectomy required more cases than open group to achieve acceptable 5-year disease-free survival. When tumors ≥ 2 cm, the surgeon's proficiency affected survival outcomes in both groups.
Minimally invasive radical hysterectomy required more cases than open group to achieve acceptable 5-year disease-free survival. When tumors ≥ 2 cm, the surgeon's proficiency affected survival outcomes in both groups.
Isocitrate dehydrogenase 1 (IDH1) mutations are the most common genetic abnormalities in low-grade gliomas and secondary glioblastomas. Glioma patients with these mutations had better clinical outcomes. However, the effect of IDH1 mutation on drug sensitivity is still under debate.

IDH1-R132H mutant cells were established by lentivirus. IDH1-R132H protein expression was confirmed by western blot. The expression of ataxia telangiectasia mutated (ATM) signaling pathway and apoptosis-related proteins were detected by immunofluorescence and western blot. Temozolomide (TMZ) induced cell apoptosis was detected by flow cytometry. Tumor cell proliferation was detected by Cell Counting Kit-8. In vivo nude mice were used to confirm the in vitro roles of IDH1 mutation.

We established glioma cell lines that expressed IDH1-R132H mutation stably. We found that TMZ inhibited glioma cells proliferation more significantly in IDH1 mutant cells compared to wild type. The IC50 of TMZ in IDH1-R132H mutant group was less tha of TMZ and ATM inhibitor enhances the antitumor effect in IDH1 mutant gliomas.The relationship between stent expansion conditions and clinical outcomes is not completely understood. This prospective cohort study included patients who were successfully implanted with second-generation drug-eluting stent in 2012 and received follow-up angiography in 9-12 months. Stent over-expansion was defined as ≥ 1.05 of the stented segment over the reference artery diameter. Imaging parameters were measured, and the follow-up period was 7 years. A total of 123 patients with 161 lesions were enrolled, and 75 (46.58%) stents were found to be over-expanded. The baseline clinical and procedural data were comparable. Stent over-expansion showed a markedly increased diameter stenosis percentage (DSP) at 1-year follow-up (24.12 ± 21.10% vs. 14.65 ± 16.75%, P = 0.002) and high late lumen loss (LLL) in-segment (0.54 ± 0.62 mm vs. 0.31 ± 0.55 mm, P = 0.014). Furthermore, 63 patients with ≥ 1 over-expanded stented lesions were classified into the over-expansion group. Cumulative major cardiac adverse event (MACE) was higher in the over-expansion group than the norm-expansion group (17.5% vs. 8.3%, P = 0.133). AP-III-a4 mw Target lesion revascularization/target vessel revascularization increased during the 7-year follow-up period in the over-expansion group compared with the norm-expansion group (11.1% vs. 3.3%, P = 0.098). The Kaplan-Meier cumulative MACE-free survival showed a better tendency for statistical differences in the norm-expansion group than in the over-expansion group (log-rank test; P = 0.083). Conclusion Stent over-expansion is associated with a significant increase in LLL and DSP at 1-year angiographic follow-up and with the increasing trend of cumulative MACE during 7-year clinical follow-up period compared with stent norm-expansion. Stent over-expansion needs to be avoided.
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