Currently, cocrystallization is a promising strategy for tailoring the physicochemical properties of active pharmaceutical ingredients. Theophylline, an alkaloid and the most primary metabolite of caffeine, is a readily available compound found in tea and coffee. It functions primarily as a bronchodilator and respiratory stimulant, making it a mainstay treatment for lung diseases like asthma. Theophylline's additional potential benefits, including anti-inflammatory and anticancer properties, and its possible role in neurological disorders, have garnered significant research interest. Cocrystal formation presents a viable approach to improve the physicochemical properties of theophylline and potentially mitigate its toxic effects. This review comprehensively explores several successful studies that utilized cocrystallization to favorably alter the physicochemical properties of theophylline or its CCF. Notably, cocrystals can not only enhance the solubility and bioavailability of theophylline but also exhibit synergistic effects with other APIs. The review further delves into the hydrogen bonding sites within the theophylline structure and the hydrogen bonding networks observed in cocrystal structures.
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http://dx.doi.org/10.1007/s13659-024-00470-y | DOI Listing |
J Prosthet Dent
December 2024
Assistant Professor, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics,School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, PR China. Electronic address:
Statement Of Problem: Polyetheretherketone (PEEK) has been used in clinical dentistry because of its excellent physical and biological properties. However, achieving an effective and durable bond with enamel is challenging because of its chemical inertness and low surface energy, and data on the effects of different surface treatments on the durability of PEEK-enamel bonds are scarce.
Purpose: The purpose of this in vitro study was to investigate airborne-particle abrasion, sulfuric acid etching, and the combined use of these treatments on the bonding durability of PEEK-enamel bonds and to gain a deeper understanding of their bonding mechanism.
Int J Biol Macromol
December 2024
College of Food Science and Technology, Henan University of Technology, Zhengzhou, China.
The objective of this study was to solve instability and low bioavailability of tea polyphenols (TPs), and to explore the application of gluten protein as microcapsule wall material. Modified gluten protein (MEG), β-cyclodextrin (β-CD), xanthan gum (XG) or acacia gum (GA) were used as composite wall materials to encapsulate TPs by double-emulsion technique, and the physicochemical and structural properties of the products were characterized. The results show that the composite wall material effectively encapsulated and enhanced the stability of TPs.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
Guangxi Key Laboratory for Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, Guangxi 530021, China. Electronic address:
High concentrations of nitrite stress aquatic animals, leading to significant fish and shrimp deaths as well as environmental pollution. Reducing nitrite levels in high-density aquaculture is crucial for both aquaculture safety and environmental protection. Nitrite reductase (NiR) can rapidly reduce nitrite in water, offering potential applications in aquaculture and water treatment.
View Article and Find Full Text PDFInt J Pharm
December 2024
Pharmacodelivery Group, School of Pharmacy, University College Cork, Cork T12 YN60, Ireland; Department of Haematology and Cancer Research@UCC, Cork University Hospital, University College Cork, Cork T12 XF62, Ireland. Electronic address:
The presence of multiple hydroxyl groups, at positions C2, C3 and C6 on the cyclodextrin (CD) ring structure allows for extensive functionalisation, enabling the development of biomaterials with significant potential for therapeutic siRNA delivery. To identify structural modifications that enhance activity, a range of cationic amphiphilic CDs, including both β- and γ-CDs, were synthesised, compared and evaluated. Each CDs incorporated a C lipid chain on the primary face of the CD.
View Article and Find Full Text PDFEur J Med Chem
December 2024
Department of Anesthesiology, Washington University School of Medicine, St. Louis, MO, 63110, USA; Center for Clinical Pharmacology, Washington University School of Medicine and University of Health Sciences and Pharmacy, St. Louis, Missouri, 63110, USA; Department of Pharmaceutical and Administrative Sciences, University of Health Sciences and Pharmacy, St. Louis, Missouri, 63110, USA. Electronic address:
Inhibition of mitochondrial pyruvate transport via the mitochondrial pyruvate carrier (MPC) has shown beneficial effects in treating metabolic diseases, certain cancers, various forms of neurodegeneration, and hair loss. These benefits arise either from the direct inhibition of mitochondrial pyruvate metabolism or from the metabolic rewiring when pyruvate entry is inhibited. However, current MPC inhibitors are either nonspecific or possess poor pharmacokinetic properties.
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