Eyedrop instillation constitutes the most commonly used ocular drug delivery method that serves for both diagnostic and therapeutic purposes. Ocular disposition and bioavailability of instilled drugs depend on the anatomy and physiology of the ocular surface as well as the physicochemical properties of the active agent. Intraocular bioavailability is positively associated with the amount of drug available onto the ocular surface and the precorneal residence time. Concerns are raised regarding systemic absorption of the instilled drugs intraocularly, percutaneously, via the conjunctiva, through the nasolacrimal system, or through the nasal, oral, and gastrointestinal mucosa. Special considerations exist regarding the anatomical features and the limited pharmacokinetic data on the pediatric population that complicate further the efficacy and systemic toxicity of the instilled medications. Both preclinical and clinical studies propose the reduction of the instilled drop volume, in the form of microdrops, as a means to enhance intraocular bioavailability of topically applied drugs, while minimizing patient discomfort and systemic adverse events. We summarize existing data on the clinical application of microdrops in a wide age range, from preterm infants to elderly adults. Studies regarding microdrops of mydriatics and ocular hypotensives show promising results in optimizing the provided everyday care.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00417-025-06773-1 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Docetaxel-Loaded Electrospun Nanofibrous Mats for Local Chemotherapy Targeting Positive Surgical Margins in Prostate Cancer.
Mol Pharm
March 2025
Department and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
Positive surgical margins following radical prostatectomy significantly contribute to tumor recurrence. While systemic chemotherapy demonstrates limited efficacy in this context, local chemotherapy drug delivery systems based on nanomaterials offer promising strategies to address this issue by modifying drug release kinetics and distribution, thereby enhancing antitumor effects while minimizing the toxicities associated with systemic chemotherapy. In this study, we utilized electrospun nanofibrous mats loaded with docetaxel for sustained drug delivery.
View Article and Find Full Text PDFHow adolescent tobacco use has responded to state tobacco 21 laws and flavor restrictions.
Am J Drug Alcohol Abuse
March 2025
School of Social Work, Boston College, Chestnut Hill, MA, USA.
Tobacco 21 (T21) laws (prohibiting tobacco sales under age 21) and flavor restrictions have recently been enacted, yet little is known about the extent to which these policies shifted adolescent tobacco use. To examine the associations between state-level T21 laws and flavor restrictions with adolescent tobacco use overall and by age. We linked state-level T21 laws and flavor restrictions with individual-level data on self-reported levels of cigarette, cigar, and electronic nicotine delivery systems (ENDS) use among 979,477 (500,205 female/479,272 male) 14-18+-year-olds from the 2011-2021 Youth Risk Behavior Surveys.
View Article and Find Full Text PDFInfluenza 5xM2e mRNA lipid nanoparticle vaccine confers broad immunity and significantly enhances the efficacy of inactivated split vaccination when coadministered.
J Immunol
January 2025
Center for Inflammation, Immunity and Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, United States.
Current influenza vaccines are not effective in conferring protection against antigenic variants and pandemics. To improve cross-protection of influenza vaccination, we developed a 5xM2e messenger RNA (mRNA) vaccine encoding the tandem repeat conserved ectodomain (M2e) of ion channel protein M2 derived from human, swine, and avian influenza A viruses. The lipid nanoparticle (LNP)-encapsulated 5xM2e mRNA vaccine was immunogenic, eliciting high levels of M2e-specific IgG antibodies, IFN-γ+ T cells, T follicular helper cells, germinal center phenotypic B cells, and plasma cells.
View Article and Find Full Text PDFAgency, sex and drug education: Examining the response-ability of education responses to consumption, sex and harm.
Health (London)
March 2025
Australian Research Centre in Sex, Health and Society, La Trobe University, Australia.
This article examines how drug education professionals understand and respond to the relationship between alcohol and other drug consumption, sex and harm. While recent research examines how these issues are addressed in drug education curriculum, little is known about the perspectives of professionals involved in education design and delivery. Research suggests that agency is centrally important for understanding experiences of harmful, pleasurable or ambiguous sexual encounters in consumption settings.
View Article and Find Full Text PDFPostoperative adhesions are abrogated by a sustained-release anti-JUN therapeutic in preclinical models.
Sci Transl Med
March 2025
Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA.
Postoperative abdominal adhesions are the leading cause of bowel obstruction and a cause of chronic pain and infertility. Adhesion formation occurs after 50 to 90% of abdominal operations and has no proven preventative or treatment strategy. Abdominal adhesions derive primarily from the visceral peritoneum and are composed of polyclonally proliferating tissue-resident fibroblasts.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!