[Safety and efficacy analysis of endovascular thrombectomy in patients with large vascular occlusion with low Alberta Stroke Program Early Computed Tomography Score].

Objective: To evaluate the safety and efficacy of endovascular thrombectomy (EVT) in acute anterior circulation large vessel occlusive stroke (ALVOS) and explore the related influencing factors for prognoses in patients with low Alberta Stroke Program Early Computed Tomography Score (ASPECT). Methods: Patients with acute ALVOS who underwent EVT in Yijishan Hospital of Wannan Medical College from January 2019 to June 2022 were sequentially enrolled. (1) Patients were divided into a low ASPECT group (0-5) and a non-low ASPECT group (6-10), and the differences between the two groups were compared with respect to incidence of perioperative complications and good prognosis rate [modified Rankin scale (mRS) score≤2] 90 days after onset. (2) According to the prognoses 90 days after onset, the low ASPECT group was divided into the good prognosis (mRS score≤2) and poor prognosis (mRS score>2) subgroup. Univariate analysis and multivariate logistic regression analysis were used to investigate the independent risk factors for prognoses of the low ASPECT patients after EVT. Results: A total of 582 patients [age 26-94(69±11) years, 345 male patients (59.3%)] were enrolled for analysis. The baseline ASPECT score was 8 (7, 10), and the baseline NIHSS score was 14 (11, 18). Among them, 102 (17.5%) patients were in the low ASPECT score group and 480 (82.5%) patients were in the non-low ASPECT score group. In the total cohort, patients in the low ASPECT score group had a higher incidence of symptomatic intracranial hemorrhage, lower 90-day good prognosis rate, and higher 90-day mortality rate. Further, propensity score matching statistical analysis showed that patients in the low ASPECT score group had a significantly higher incidence of malignant brain edema after EVT treatment (40.0% vs. 17.6%, χ2=9.13, P=0.003), and a significantly lower 90-day good prognosis rate (24.7% vs. 41.6%, χ2=4.96, P=0.026), but there was no significant difference in the incidence of symptomatic intracranial hemorrhage and 90-day mortality between the two groups (40.3% vs. 26.0%, χ2=3.55, P=0.060). Among 102 patients with low ASPECT score, 22 (21.6%) patients had good prognosis and 80 (78.4%) had poor prognosis. Multivariate logistic regression analysis showed that history of atrial fibrillation (OR=4.478, 95%CI 1.186-16.913, P=0.027) was an independent risk factor for poor prognosis of EVT in patients with low ASPECT score, while good collateral circulation (grade 2 vs. grade 0: OR=0.206, 95%CI 0.051-0.842, P=0.028) was a protective factor for good prognosis of EVT in patients with low ASPECT score. Conclusions: Although the 90-day good prognosis rate of EVT treatment for patients with low ASPECT score was lower than that of the non-low ASPECT group, 21.6% patients still benefitted from EVT treatment, especially patients with non-atrial fibrillation and good collateral circulation. Future studies involving more patients are needed to validate our observations.

[IDH、TERT and 1p/19q predicting clinical outcomes in patients with anaplastic oligodendroglioma].

Objective: To investigate the prognostic values of IDH, TERT and 1p/19q in patients with anaplastic oligodendroglioma. Methods: In the study, 66 patients with pathological diagnosis of anaplastic oligodendroglioma were enrolled (The First Affiliated Hospital of Zhengzhou University 2011 to 2016 years). Kaplan-Meier method was used to calculate the survival rates. Log-rank was used to calculate the differences in group. Chi-square testwas used tocalculate the differences in common factor group. Cox regression model was used to conduct multivariate analysis. Results: The median survival time of IDH-wt and IDH-mt subgroups were 16.10 and 42.00 months with statistical significance (P=0.001). The median survival time of 1p/19q codeleted and 1p/19q noncodeleted subgroups were 42.00 and 22.40 months with statistical significance (P=0.012). IDH-mt and 1p/19q codeleted predicted better survivals compared with IDH-wt and 1p/19q noncodeleted (P=0.001). And IDH-mt and 1p/19q noncodeleted predicted better survivals compared with IDH-wt and 1p/19q noncodeleted (P=0.041), too. Multivariate survival analysis demonstrated that Molecular groups was an independent factor to evaluate the prognosis of anaplastic oligodendroglioma (P=0.008). Conclusion: IDH-mtand (or) 1p/19q codeletedpredicted better survivals in patients with anaplastic oligodendroglioma. IDH and 1p/19q deleted might be a biomarker for predicting prognosis of patients with anaplastic oligodendroglioma.

[Preoperative prognostic nutritional index predicts clinical outcomes in patients with lower-grade gliomas].

Objective: To investigate the prognostic values of preoperative prognostic nutritional index (PNI) in patients with lower-grade gliomas. Methods: In the study, 379 patients with pathological diagnosis of lower-grade gliomas were enrolledwhich were confirmed in The First Affiliated Hospital of Zhengzhou University (2011-02 to 2016-05). Kaplan-Meier method was used to calculate the survival rates. log-rank was used to calculate the differences in group. Cox regression model was used to conduct multivariate analysis. Results: The cutoff value of PNI was 46.70. The median survival time of PNI≤47.80 and PNI>47.80 subgroups were 46.76 and 67.37 months with statistical significance (P<0.001). High PNI predicted a better survival rate. Multivariate survival analysis demonstrated that low PNI was an independent risk factor to evaluate the prognosis of glioma patients. In lower-grade gliomas, high PNI predicted better survivals in TERT mutation only (P=0.003) and triple-negative group (P=0.007). Conclusion: In lower-grade gliomas, low PNI predicts worse survivals and PNI have differential prognostic significances in molecular groups of lower-grade gliomas.

Effect of Variable Temperature on the Development of Eucryptorrhynchus brandti (Coleoptera: Curculionidae).

Temperature is one of the most important abiotic factors that influences the development and growth of insects. We investigated the effect of temperature on the development of the weevil Eucryptorrhynchus brandti (Harold). The developmental zeros and effective accumulated temperatures for different developmental stages of E. brandti were estimated under variable temperatures in the laboratory. We observed that the developmental zeros of eggs, larvae, and pupae were 15.27 °C, 20.86 °C, and 14.04 °C, respectively, and the effective accumulated temperatures were 81.46 °C·d, 293.76 °C·d, and 127.76 °C·d, respectively. The rate of development increased as the temperature increased within a particular temperature range, and temperatures from 30 °C to 31 °C were particularly suitable for E. brandti rearing. Based on these results, we may be able to predict the occurrence of E. brandti, providing a reference for physical control measures targeting adults to effectively reduce oviposition and minimize population expansion.