Int J Med Sci
-
Background: Limited research has examined the association between Oxidative Balance Score (OBS) and mortality, particularly in individuals with Helicobacter pylori (H. pylori) infection. This study investigates the correlation between OBS and H. pylori infection and their impacts on all-cause mortality within a cohort of individuals, considering both infected and uninfected individuals. Methods: Data from the National Health and Nutrition Examination Survey (NHANES) 1999-2018, comprising 4,532 participants, were analyzed. ⋯ Conclusion: In this sample, higher OBS was associated with lower H. pylori infection risks. Dietary OBS correlated significantly with all-cause mortality in H. pylori-positive individuals, while lifestyle OBS was notably associated with mortality in H. pylori-negative participants. Further research is necessary to elucidate the underlying mechanisms and clinical implications of these findings.
-
Background: Nasopharyngeal carcinoma (NPC) is an epithelial tumor of the head and neck with heterogeneous racial and geographical distributions. Homeobox B2 (HOXB2) is a tumor promoter in many cancers. However, the biological role of HOXB2 in NPC has not been elucidated. ⋯ Thereafter, we transferred the FOXO1-OE plasmid to HOXB2-OE NPC cells and found that overexpression of FOXO1 reversed cell proliferation, migration, invasion, and radioresistance profiles promoted by HOXB2 overexpression. Conclusion: Our findings showed that HOXB2 acts as a tumor promoter in NPC, activating malignant behaviors and radioresistance of tumors via FOXO1 regulation. Moreover, the inactivation of HOXB2 or activation of FOXO1 are potential strategies to inhibit tumor progression and overcome radioresistance in NPC.
-
Objective: Our study aims to evaluate the value of 256-slice dual-energy computed tomography (DECT) in supporting prostatic artery embolization (PAE) under digital subtraction angiography (DSA) for benign prostatic hyperplasia (BPH). Methods: The study was conducted on 88 patients who underwent PAE to treat BPH from January 2022 to November 2023. Of these, 38 patients who had PAE without DECT were placed in group 1, while the other 50 patients with pre-interventional DECT were assigned to group 2. ⋯ There is no statistically significant difference in PA diameter on DECT compared to DSA with 95% confidence. Group 2 used DECT for 3D rendering of the PA before PAE had procedure time reduced by 25.8%, fluoroscopy time reduced by 23.2%, dose-area product (DAP) reduced by 25.6%, contrast medium volume reduced by 33.1% compared to group 1 not using DECT, statistically significant with 95% confidence. Conclusion: DECT is a valuable method for planning before PAE to treat BPH. 3D rendering DECT of PA provides anatomical information that minimizes procedure time, fluoroscopy time, dose-area product, and contrast medium volume.
-
The skin is directly exposed to atmospheric pollutants, especially particulate matter 2.5 (PM2.5) in the air, which poses significant harm to skin health. However, limited research has been performed to identify molecules that can confer resistance to such substances. Herein, we analyzed the effect of fermented sea tangle (FST) extract on PM2.5-induced human HaCaT keratinocyte damage. ⋯ Interestingly, pan-caspase inhibitor Z-VAD-FMK treatment enhanced the anti-apoptotic effect of FST extract in PM2.5-treated cells. Our results indicate that FST extract prevents PM2.5-induced cell damage via inhibition of mitochondria-mediated apoptosis in human keratinocytes. Accordingly, FST extract could be included in skin care products to protect cells against the harmful effects of PM2.5.
-
Objective: In order to be allowed to use the title "Dr. med." in Germany, an independent scientific achievement under the supervision of an established scientist is necessary. The research question, analysis and results are essentially carried out and developed independently by the doctoral student. The doctorate serves as proof that the doctoral candidate is capable of independent academic work. ⋯ Despite revisions of many regulations in the past, these revisions have not led to any significant harmonisation. The implementation of standardised and structured doctoral programmes is desirable and could be tackled within the framework of the planned amendment of medical studies. This opens up the possibility of dealing efficiently with the scarce resource of time in the face of competing curriculum content and of making a doctoral project more attractive to potential young scientists at an early stage.