Introduction: Ibrutinib is a selective tyrosine kinase inhibitor used to treat chronic lymphocytic leukemia (CLL). However, it has low oral bioavailability (2.9%), which is attributed to low solubility (0.
View Article and Find Full Text PDFPurpose: Magnetic controlled growing rods (MCGRs) are used to treat early-onset scoliosis when nonsurgical options fail, controlling curve progression and allowing for continued spinal growth. Recent reports of unplanned reoperations and mechanical failure of MCGRs have led to further research. This is a systematic review on the retrieval analysis of explanted MCGR rods.
View Article and Find Full Text PDFThis study proposes a sensitive and green spectrofluorimetric method for assessing brucine in solid dispersion adsorbate formulations and spiked plasma samples by combining quality by design principles with white analytical chemistry concepts. This method attains nanogram-level sensitivity by employing fluorescein as a biosensing probe through photoinduced electron transfer. The targeted formulation showed improved solubility and dissolution rates compared with those of pure brucine.
View Article and Find Full Text PDFBioorg Med Chem Lett
August 2025
FLT3 kinase inhibitors have been advanced to the clinic as targeted treatments for acute myeloid leukemia (AML). These inhibitors can produce promising initial responses, but patients often relapse with treatment-resistant disease. A significant factor contributing to relapse involves adaptive signaling through an alternative pathway mediated by IRAK1 and IRAK4 kinases.
View Article and Find Full Text PDFStaphylococcal infections remain a prominent cause of hospital- and community-acquired infections in the United States. Glomerulonephritis with predominant Immunoglobulin A (IgA) deposition following staphylococcal infection has been described as IgA-dominant postinfectious glomerulonephritis (IgA-PIGN). This clinical entity can mimic Henoch-Schönlein purpura nephritis (HSPN) given that it may also be preceded by staphylococcal infection, have similar kidney biopsy findings, and present with similar signs and symptoms.
View Article and Find Full Text PDFBackground: The inherent limitation of ocular dosage forms is decreased precorneal residence time which affects the bioavailability and therapeutic efficacy.
Objective: The objective of the current research was to sustain drug release and enhance precorneal drug residence time by formulating lipidic core-shell nanoparticles of Dexamethasone Sodium Phosphate and loading them in ion-sensitive in situ gel for corneal neovascularization.
Methods: Polymeric nanoparticles were formulated using Eudragit L100-55 and PVA by twostep solvent diffusión nanoprecipitation method and coated by a lipidic film of Soya phosphatidylcholine with Cholesterol.
Replacement of the phenolic hydroxy in 3-((1,5,9)-2-phenethyl-9-vinyl-2-azabicyclo[3.3.1]nonan-5-yl)phenol (), a potent efficacious MOR agonist, with an amide bioisosteric moiety provided a MOR partial agonist with morphine-like potency in the forskolin-induced cAMP accumulation assay and in the [S]GTPγS functional assay.
View Article and Find Full Text PDFTo analyze surgical challenges and outcomes in patients who completed the whole journey of vertical expandable prosthetic titanium rib (VEPTR) treatment for congenital early-onset scoliosis (C-EOS), given the limited evidence available on VEPTR graduates. A retrospective review was conducted on nine consecutive patients with C-EOS and thoracic hypoplasia treated at a single tertiary care center, with assessment of clinical and radiological outcomes. At mean duration of 7.
View Article and Find Full Text PDFWe report the optimization of a series of IRAK1/4/pan-FLT3 kinase inhibitors. These efforts have produced a key compound that displays potent and selective inhibition of IRAK1, IRAK4, and FLT3, reduced block of hERG, and good pharmacokinetic properties. In a mouse xenograft model of acute myeloid leukemia (AML), produces survival prolongation superior to that of gilteritinib, the leading FDA-approved FLT3 inhibitor currently used to treat AML.
View Article and Find Full Text PDFOne of the major challenges in the psoriasis therapies is the systemic side effects. This research investigation intended to design, formulate, and characterize topical Apremilast (APR) nanostructured lipid carriers (NLCs) embedded hydrogel. APR-loaded NLCs were prepared using the hot melt ultrasonication technique using glyceryl monostearate (GMS) and Capmul MCM, followed by high-speed homogenization.
View Article and Find Full Text PDFIntroduction: Humeral shaft fractures constitute 1-1.5% of all fractures, with most occurring in the middle and distal segments. While conservative treatment is common, surgical fixation is often preferred for displaced or comminuted fractures, particularly in young, active individuals.
View Article and Find Full Text PDFNatural Products (NPs) are increasingly utilized worldwide for their potential therapeutic benefits, including central nervous system (CNS) disorders. Studies have shown açai berries mitigating Parkinson's disease progression through dopaminergic neuroprotection via Nrf-2 HO-1 pathways. Ashwagandha, an evergreen shrub, has shown potential as a therapeutic for neurodegenerative disorders via axonal regeneration in Aβ25-35-treated cortical neurons in vitro.
View Article and Find Full Text PDFBackground & Rationale: Celecoxib (CXB), with its anti-inflammatory and recently discovered antibacterial activity, especially against sensitive and methicillin-resistant could be promising in treating local pain, superficial skin infections, wounds and infected wounds. The study aims to develop and compare commercially scalable topical formulations of CXB to explore their antimicrobial and wound-healing potential.
Methods: Carbopol gel, o/w cream, polyethylene glycol (PEG) ointment, and paraffin ointment were selected as the vehicles for the preparation of 3% CXB topical formulations.
Acta Crystallogr D Struct Biol
February 2025
Cryo-electron tomography is a rapidly developing field for studying macromolecular complexes in their native environments and has the potential to revolutionize our understanding of protein function. However, fast and accurate identification of particles in cryo-tomograms is challenging and represents a significant bottleneck in downstream processes such as subtomogram averaging. Here, we present tomoCPT (Tomogram Centroid Prediction Tool), a transformer-based solution that reformulates particle detection as a centroid-prediction task using Gaussian labels.
View Article and Find Full Text PDFThis study developed a microwave-aided spectrofluorimetric method for in-vivo characterizing teneligliptin-loaded solid dispersion adsorbate (TNG-SDA) using a quality by design approach. The microwave-aided chemical reaction was applied for derivatization of non-fluorescent teneligliptin with NBD-Cl (7-chloro-4-nitrobenzoxadiazole). TNG-SDA was prepared to enhance the solubility and bioavailability of teneligliptin, a BCS (Biopharmaceutical Classification System) class II drug.
View Article and Find Full Text PDFACS Med Chem Lett
November 2024
We report the discovery of an imidazopyridine series of IRAK1/4/pan-FLT3 kinase inhibitors. Optimization of this series has produced compound which displays potent and selective inhibition of IRAK1, IRAK4, FLT3, and all mutant forms of FLT3, as well as good in vitro ADME and pharmacokinetic properties. In a mouse xenograft model of AML, produces survival prolongation equal to that of Gilteritinib, the leading marketed FLT3 inhibitor currently used to treat AML.
View Article and Find Full Text PDFPharmacokinetic issues were the leading cause of drug attrition, accounting for approximately 40% of all cases before the turn of the century. To this end, several high-throughput in vitro assays like microsomal stability have been developed to evaluate the pharmacokinetic profiles of compounds in the early stages of drug discovery. At NCATS, a single-point rat liver microsomal (RLM) stability assay is used as a Tier I assay, while human liver microsomal (HLM) stability is employed as a Tier II assay.
View Article and Find Full Text PDFOveractive bladder (OAB) is a usual medical syndrome that affects the bladder, and Mirabegron (MBG) is preferred medicine for its control. Currently, available marketed formulations (MYRBETRIQ® granules and MYRBETRIQ® ER tablets) suffer from low bioavailability (29-35%) hampering their therapeutic effectiveness and compromising patient compliance. By creating MBG nanostructured lipid carriers (MBG-NLCs) for improved systemic availability and drug release, specifically in oral administration of OAB treatment, this study aimed to address these issues.
View Article and Find Full Text PDFAAPS PharmSciTech
September 2024
Oral Topiramate therapy is associated with systemic adverse effects including paresthesia,abdominal pain, and fluctuations in plasma levels. The purpose of this research was to develop an intranasal in situ gel based system comprising Topiramate polymeric nanoparticles and evaluate its potential both in vitro and in vivo. Poly (lactic-co-glycolic acid) (PLGA)nanoparticles prepared by nanoprecipitation method were added into the in situ gelling system of Poloxamer 407 and HPMC K4M.
View Article and Find Full Text PDFCoronaviruses are highly transmissible respiratory viruses that cause symptoms ranging from mild congestion to severe respiratory distress. The recent outbreak of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has underscored the need for new antivirals with broad-acting mechanisms to combat increasing emergence of new variants. Currently, there are only a few antivirals approved for treatment of SARS-CoV-2.
View Article and Find Full Text PDFBackground: Empagliflozin (EMPA) is an SGLT2 inhibitor, a new class of anti-diabetic medication, indicated for treating type-2 diabetes. Its low permeability, poor solubility and bioavailability limits its use in management of diabetes. The study was aimed to formulate EMPA loaded polymeric micelles (PMs) to overcome these obstacles in oral absorption.
View Article and Find Full Text PDFThe use of topical antimicrobials in wound healing presents challenges like risk of drug resistance and toxicity to local tissue. Simvastatin (SIM), a lipid-lowering agent which reduces the risk of cardiovascular events, is repurposed for its pleiotropic effect in wound healing. A bioactive bioadhesive polymer-based film forming spray (FFS) formulation of SIM was designed using chitosan, collagen, hyaluronic acid and optimised by employing the DoE approach.
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
November 2024
Ibrutinib, an antineoplastic agent tackling chronic lymphocytic leukemia, mantle cell lymphoma, and Waldenstrom's Macroglobulinemia, falls under the category of BCS class II drugs, characterized by a puzzling combination of low solubility and high permeability. Its oral bioavailability remains a perplexing challenge, merely reaching 2.9 % due to formidable first-pass metabolism hurdles.
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