Aminoglycosides (AG) are commonly prescribed antibiotics with potent bactericidal activities. One main side effect is permanent sensorineural hearing loss, induced by selective inner ear sensory hair cell death. Much work has focused on AG's initiating cell death processes, however, fewer studies exist defining mechanisms of AG uptake by hair cells. The current study investigated two proposed mechanisms of AG transport in mammalian hair cells: mechanotransducer (MET) channels and endocytosis. To study these two mechanisms, rat cochlear explants were cultured as whole organs in gentamicin-containing media. Two-photon imaging of Texas Red conjugated gentamicin (GTTR) uptake into live hair cells was rapid and selective. Hypocalcemia, which increases the open probability of MET channels, increased AG entry into hair cells. Three blockers of MET channels (curare, quinine, and amiloride) significantly reduced GTTR uptake, whereas the endocytosis inhibitor concanavalin A did not. Dynosore quenched the fluorescence of GTTR and could not be tested. Pharmacologic blockade of MET channels with curare or quinine, but not concanavalin A or dynosore, prevented hair cell loss when challenged with gentamicin for up to 96 hours. Taken together, data indicate that the patency of MET channels mediated AG entry into hair cells and its toxicity. Results suggest that limiting permeation of AGs through MET channel or preventing their entry into endolymph are potential therapeutic targets for preventing hair cell death and hearing loss.

Background: Vitamin D is essential for many functions of the body. In addition to its primary function of regulating the absorption of calcium in the small intestine, its role in the immune system has recently been studied. The current study aimed to test the impact of vitamin D deficiency on the rate of recurrent acute tonsillitis in children. Methods: According to Paradise criteria, two hundred forty-two children with recurrent acute tonsillitis were recruited. A group of healthy children (n = 262) was also recruited as controls. Poisson regression was run to predict the number of tonsillitis episodes per year based on vitamin D levels. The mean vitamin D level in the study group was lower than in the control group (p < 0.0001). Poisson regression of the rate of recurrent tonsillitis and vitamin D level (OR = 0.969 (95% CI, 0.962–0.975)) showed that for every single unit increase in vitamin D level, there was a 3.1% decrease in the number of tonsillitis episodes per year (p < 0.0001). Conclusions: Vitamin D deficiency is associated with higher rates of recurrent acute tonsillitis. Future controlled trials should investigate the role of vitamin D supplementation in reducing the rate of recurrent tonsillitis.

Radiological imaging plays an important role in diagnosis, treatment choice, follow-up, and surgical planning of different paranasal sinus abnormalities.

A sleep disordered breathing constitutes of various issues of upper airway from primary snoring to obstructive sleep apnea.

Diabetes mellitus is a condition where there is an increase in blood glucose levels due to either decreased insulin synthesis or decreased insulin use. There are other forms of diabetes mellitus, but type 1 and type 2 are the most common. The goal of insulin therapy is to minimize the risk of hypoglycemia while achieving the greatest possible management of blood glucose levels. Insulin administered subcutaneously has some drawbacks, including pain, allergic reactions, hyperinsulinemia, and poor patient compliance. To address these drawbacks, researchers proposed using smart biodegradable polymer-based devices to regulate insulin levels and circumvent the challenges of administering insulin orally, as this review will demonstrate using a variety of techniques. Specifically, this comprehensive review covers smart stimuli-responsive hydrogels based on poly(N-isopropylacrylamide) (PNIPAAm) copolymers for temperature- and pH-dependent oral insulin delivery, poly(lactic-co-glycolic acid) (PLGA) biodegradable microcapsules designed for sustained subcutaneous insulin release with controlled initial burst, biodegradable insulin-loaded nanoparticles prepared via double emulsion and microfluidic/salting-out methods, insulin-albumin microbeads as implantable long-term delivery systems, and glucose-responsive complex polymeric micelles (CPMs) capable of repeated on–off insulin release.

Background/Objectives: Telemedicine-enabled medication dispensing and delivery was formally regulated in Jordan in 2025, but the Jordan Pharmacists Association publicly rejected the pharmacy-related provisions because of concerns about safety, liability, and the pharmacist’s professional role. This study evaluated community pharmacists’ acceptance of the regulated model and identified perceived patient safety risks, implementation barriers, and required safeguards. Methods: A convergent mixed-methods design was used. A cross-sectional online survey was completed by 350 licensed community pharmacists (response rate 83.3%). The questionnaire assessed willingness to participate, perceived patient safety risks, implementation barriers, and facilitators using 5-point Likert scales. Multivariable logistic regression examined predictors of willingness. Semi-structured interviews were conducted with 22 purposively sampled pharmacists until thematic saturation. Quantitative and qualitative findings were integrated using joint displays. Results: Only 28.3% of pharmacists were willing to participate under current conditions, 46.9% were unwilling, and 24.9% expressed conditional acceptance; 52.0% opposed national implementation. Patient safety concerns were great (mean 4.4 ± 0.6/5), especially regarding remote patient assessment (91.4%) and medication errors (88.9%). Implementation barriers were severe (mean 4.5 ± 0.5/5), mainly regulatory ambiguity (92.0%) and unclear liability (89.7%). Facilitators were strongly endorsed (mean 4.7 ± 0.4/5), particularly mandatory pharmacist verification (94.6%) and clear legal protections (93.4%). Qualitative findings reinforced pharmacists’ role as the “final safety checkpoint” and showed acceptance depended on strong safeguards. Conclusions: Jordanian pharmacists showed principled resistance to the current model. Acceptance depends on pharmacist oversight, legal clarity, and infrastructure readiness.