Pretreatment Liquid Biopsy and Clinicopathologic Features in HPV-Associated Oropharyngeal Squamous Cell Carcinoma.

Importance: Despite the favorable prognosis for HPV-positive oropharyngeal squamous cell carcinoma (HPV+ OPSCC), efforts to de-escalate treatment intensity, while maintaining low recurrence and mortality rates, have proven challenging. Identifying appropriate prognostic factors remains elusive; however, the association of pretreatment circulating tumor tissue viral-modified HPV (TTMV-HPV) DNA level with known characteristics of disease burden-clinical staging, characteristics of pretreatment imaging, and aggressive histopathologic features of surgical specimen-may offer insights that could shift treatment paradigms for HPV+ OPSCC.

Objective: To investigate the association of pretreatment TTMV-HPV DNA levels with clinical, radiologic, histopathologic, and outcome metrics in patients with HPV+ OPSCC.

Degradation and transformation of tylvalosin by newly selected Providencia vermicola strain CT1: removal efficiency, pathways, mechanisms, and actual applications.

Tylvalosin (TAT) is a widely used veterinary antibiotic whose residual contaminants promote antibiotic resistance and pose potential risks to human health and ecosystems. This study successfully isolated and identified a TAT-degrading bacterial strain, Providencia vermicola strain CT1, through 16S rRNA analysis and biochemical tests. Under optimized conditions (30 °C, pH = 6, initial TAT concentration of 300 mg/L, and bacterial culture volume of 50 mL), strain CT1 achieved a TAT degradation percentage of 97.

GSDMD-mediated mitochondrial dysfunction in marginal cells: A potential driver of inflammation and stria vascularis damage in CIHL.

Inflammation is among the known causes of cisplatin-induced hearing loss (CIHL), but its exact pathophysiological mechanisms remain unclear. Herein, we demonstrated that pyroptosis-a recently identified inflammatory type of regulated cell death dependent on gasdermin D (GSDMD)-was activated in the cochleae of cisplatin-treated mice, causing CIHL. Meanwhile, treatment with the GSDMD inhibitor necrosulfonamide alleviated CIHL in these mice.

Metabolomic and Cellular Mechanisms of Drug-Induced Ototoxicity and Nephrotoxicity: Therapeutic Implications of Uric Acid Modulation.

Certain medications, including cisplatin and neomycin, often cause both hearing loss and renal dysfunction. This study aims to uncover the common mechanisms behind drug-induced ototoxicity and nephrotoxicity to aid early diagnosis and treatment. Metabolomic analyses reveal simultaneous disruptions in endogenous metabolic networks in the kidney, inner ear, and serum after administrating cisplatin or neomycin.