To improve the corneal permeability and water-solubility of disulfiram (DSF), which is an ocular drug for cataract, P188 was selected as a matrix to prepare solid dispersion of DSF (DSF) by hot melt method. The DSF was characterized by DSC, XRD, and IR, and the results suggested that DSF was amorphous in DSF. The DSF was added to borate buffer solution (BBS) contained 20% poloxamer P407 and 1.2% poloxamer P188 to form in-situ gel. and experiments revealed that DSF combined with in-situ gel (DSF/in-situ gel) increased the residence time and the amount of DSF penetrated through the corneal. The pharmacodynamics studies exhibited DSF/in-situ gel delayed the development of selenium-induced cataract at some content. These results investigated that DSF/in-situ gel as a drug delivery system can improve DSF ocular permeability.
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http://dx.doi.org/10.1016/j.ajps.2018.02.010 | DOI Listing |
Int J Pharm
January 2025
Department of Chemical Sciences, Bernal Institute, University of Limerick, Ireland; SSPC Science Foundation Ireland Research Centre for Pharmaceuticals, University of Limerick, Ireland. Electronic address:
The potent pro-inflammatory cytokine, interferon gamma (IFN-γ), is an enticing therapeutic target because of its accelerator role in several acute and chronic inflammatory processes. In this work, poloxamer 407 is developed as an in-situ gelling polymer for a long-acting formulation to deliver a serine protease, C5a peptidase (ScpA) from Streptococcus pyogenes. ScpA is well known for its activity against the complement factor C5a but has also recently been shown to cleave IFN-γ in vitro into inactive fragments.
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January 2025
Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bengaluru 560064, Karnataka, India.
Enzyme-instructed self-assembly (EISA) is a promising approach to anti-cancer therapeutics due to its precise targeting and unique cell death mechanism. In this study, we introduce a small molecule, DN6, which undergoes nitroreductase (NTR)-responsive liquid-liquid phase separation (LLPS) followed by a liquid-to-solid phase transition (LST) through a gel-like intermediate state, resulting in the formation of nanoaggregates with spatiotemporal control. The reduced form of DN6 (DN6R), owing to its aggregation-induced emission (AIE) and mitochondria-targeting capabilities, has been employed for organelle-specific imaging of tumor hypoxia.
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January 2025
College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
Developing hydrogels with high conductivity and toughness a facile strategy is important yet challenging. Herein, we proposed a new strategy to develop conductive hydrogels by growing metal dendrites. Water-soluble Sn ions were soaked into the gel and then converted to Sn dendrites an electrochemical reaction; the excessive Sn ions were finally removed by water dialysis, accompanied by dramatic shrinkage of the gel.
View Article and Find Full Text PDFInt J Pharm
January 2025
School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 51006 China. Electronic address:
Androgenic alopecia (AGA), the most prevalent type of progressive hair loss, currently lacks an effective topical treatment regimen. In this study, we synthesized an ionic liquid (IL) to co-solubilize minoxidil (MXD) and finasteride (FIN) and subsequently formulated them into an in situ thermosensitive ionic liquid/cyclodextrin/poloxamer hydrogel (ICPG), termed M + F@ICPG. M + F@ICPG was developed for the transdermal co-delivery of these two drugs, aiming to provide a multipath therapeutic approach for AGA while avoiding the adverse effects commonly associated with oral FIN and topical MXD tincture.
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January 2025
Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121, Ferrara, Italy.
In this study an in situ forming gel for curcumin and piperine delivery is investigated as a long-lasting strategy in the local treatment of inflammatory and degenerative joint disease, such as osteoarthritis and rheumatoid arthritis. Particularly glyceryl monooleate, in association with phosphatidylcholine and ethanol, were employed. Different ratios between excipients were tested, with the aim to obtain a liquid form suitable for subcutaneous injection, gaining a semisolid consistency in contact with biological fluids.
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