Debates persist regarding the efficacy and safety of azvudine, particularly its real-world outcomes. This study involved patients aged ≥60 years who were admitted to 25 hospitals in mainland China with confirmed SARS-CoV-2 infection between December 1, 2022, and February 28, 2023. Efficacy outcomes were all-cause mortality during hospitalization, the proportion of patients discharged with recovery, time to nucleic acid-negative conversion (T _NANC), time to symptom improvement (T _SI), and time of hospital stay (T _HS). Safety was also assessed. Among the 5884 participants identified, 1999 received azvudine, and 1999 matched controls were included after exclusion and propensity score matching. Azvudine recipients exhibited lower all-cause mortality compared with controls in the overall population (13.3% vs. 17.1%, RR, 0.78; 95% CI, 0.67-0.90; P = 0.001) and in the severe subgroup (25.7% vs. 33.7%; RR, 0.76; 95% CI, 0.66-0.88; P < 0.001). A higher proportion of patients discharged with recovery, and a shorter T _NANC were associated with azvudine recipients, especially in the severe subgroup. The incidence of adverse events in azvudine recipients was comparable to that in the control group (2.3% vs. 1.7%, P = 0.170). In conclusion, azvudine showed efficacy and safety in older patients hospitalized with COVID-19 during the SARS-CoV-2 omicron wave in China.

Objective:To explore the mechanism of miR-205-5p/E2F1 signal axis in regulating the glioma U251, U87 radiotherapy resistance.Methods:X-ray gradual ascending and intermittent induction method was used to irradiate the glioma U251 cells to establish U251/TR, U87/TR radiation-resistant cell lines. Then, the morphology, migration, invasion and proliferation abilities of cells (U251/TR, U87/TR radiation-resistant cells and U251, U87 radiation-sensitive cells) were analyzed. Luciferase gene detection system and point mutation technique were employed to analyze the mechanism of miR-205-5p and E2F1 gene activity on U251 and U87 radiation-resistant cell lines.Results:Compared with the radiation-sensitive U251 cells, the radiation-resistant cells U251/TR, U87/TR showed increased proliferation activity, enhanced migration and invasion abilities and decreased apoptosis under X-ray irradiation. miR-205-5p mimics transfection could down-regulate the expression of E2F1 factor in U251/TR cells, inhibit cell proliferation, invasion and migration and increase the radiosensitivity of U251/TR cells. miR-205-5p mimics transfection combined with with E2F1 down-regulation exerted anti-tumor effect and decreased cell tolerance by suppressing the Wnt/β-catenin signaling pathway activity.Conclusions:The glioma radiation-resistant cell line U251/TR, U87/TR can be established by X-ray gradual ascending and intermittent induction method. The miR-205-5p/E2F1 signal axis exerts tumor-suppressing effect through the classical Wnt/β-catenin signaling pathway, which can be used as an therapeutic target to increase the radiosensitivity of glioma.

Objective:To determine the current situation of patients with diabetic foot and influencing factors in Jinyang community of Shanghai. Methods:A total of 1400 patients with diabetes registered in community management from January 2019 through December 2019 were randomly selected for survey. All patients completed the screen for diabetic foot and then were divided into control group （n=159） and observation group （n=1 241） according to the occurrence of diabetic foot. Patient's demographics and medical history were recorded， including gender， age， history of long-term smoking， course of disease， history of trauma infection， fasting blood glucose， 2 h postprandial blood glucose （2hPG）， glycosylated hemoglobin （HbAlc）， blood lipid level， history of hyperglycemia， diabetic nephropathy， and diabetic retinopathy. Univariate and multivariate logistic analyses were performed with these possible influencing factors. Results:Univariate analysis showed that the incidence of diabetic foot was not significantly associated with gender， age， history of trauma infection， course of disease or blood lipid level （P>0.05）， whereas had statistical significance with long-term smoking history， fasting blood glucose and 2-hour diabetes mellitus PG， HbAlc， history of hypertension， diabetic nephropathy and diabetic retinopathy （P<0.05）. Multivariate logistic analysis showed that the incidence of diabetic foot was not statistically associated with gender， age， history of trauma infection， course of disease or blood lipid level （P>0.05）； it was significantly associated with long-term smoking history， fasting blood glucose and 2-hour diabetes mellitus PG， HbAlc， history of hypertension， diabetic nephropathy and diabetic retinopathy （P<0.05）. Conclusion:There are multiple influencing factors of diabetic foot in Jinyang community. We should take corresponding measures to control the blood glucose level of diabetic patients and reduce the incidence of diabetic foot.