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A rare metabolic condition called alkaptonuria (AKU) is caused by a decrease in homogentisate 1,2 dioxygenase (HGO) activity due to a mutation in homogentisate dioxygenase (HGD) gene. Homogentisic acid is a byproduct of the catabolism of tyrosine and phenylalanine that darkens the urine and accumulates in connective tissues which causes an agonizing arthritis. Employing the use of deep learning artificial intelligence (AI) drug design, this study aims to alleviate the current toxicity of the AKU drugs currently in use, particularly nitisinone, by utilizing the natural flavanol kaempferol molecule as a 4-hydroxyphenylpyruvate dioxygenase inhibitor. Kaempferol was employed to generate three effective drug candidates targeting the enzyme 4-hydroxyphenylpyruvate dioxygenase using an AI drug design tool. We present novel AIK formulations in the present study. The AIK's (Artificial Intelligence Kaempferol) examination of drug-likeliness among the three led to its choice as a possible target. The toxicity assessment research of AIK demonstrates that it is not only safer to use than other treatments, but also more efficient. The docking of the AIGT with 4-hydroxyphenylpyruvate dioxygenase, which revealed a binding affinity of around -9.099 kcal/mol, highlights the AIK's potential as a therapeutic candidate. An innovative approach to deal with challenging circumstances is thus presented in this study by new formulations kaempferol that have been meticulously designed by AI. The results of the tests must be confirmed , even though AI-designed AIK is effective and sufficiently safe as computed.
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http://dx.doi.org/10.1515/znc-2024-0075 | DOI Listing |
Eur J Pharmacol
August 2025
Vrije Universiteit Brussel, Liver Therapy & Evolution Team, In Vitro Toxicology and Dermato-Cosmetology (IVTD), Faculty of Medicine and Pharmacy, 1090, Brussels, Belgium. Electronic address:
Alkaptonuria (AKU) is a rare genetic disorder caused by mutations in the homogentisate 1,2-dioxygenase (HGD) gene. The HGD enzyme forms a complex hexameric structure (dimer of trimers), which is highly susceptible to destabilization by missense mutations, accounting for 64.2 % of AKU-causing variants.
View Article and Find Full Text PDFBr J Dermatol
July 2025
Institute for Melanin Chemistry, Fujita Health University, Toyoake, Aichi, Japan.
Background: Hydroquinone (HQ) is widely used for its hypopigmenting effects in treating hyperpigmentation disorders. However, its topical application has been linked to adverse effects, notably exogenous ochronosis (EO), raising concerns about its safety and mechanisms of action.
Objective: This study aims to elucidate the metabolic pathway of HQ in human melanocytes and clarify the role of tyrosinase in the development of EO.
Proteins
July 2025
Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang, Gyeongbuk, Korea.
Homogentisate 1,2-dioxygenase (HGD) is a non-heme iron enzyme that plays a crucial role in phenylalanine and tyrosine metabolism. Acinetobacter-derived HGD (AcHGD) exhibits structural similarity to glyoxalase I (GLO1) but lacks GLO1 activity. In this study, we analyzed the crystal structure of AcHGD at a resolution of 1.
View Article and Find Full Text PDFPLoS One
July 2025
Department of Parasitology, Faculty of Medicine, Universiti Malaya Kuala Lumpur, Malaysia.
Mosquitoes serve as the primary vectors responsible for transmitting canine filariasis, yet understanding the molecular interactions between filarial parasites and their vectors is a significant challenge.. Therefore, employing a proteomic approach is crucial for elucidating the protein expressions profile in mosquitoes, allowing the tracking of biochemical changes during parasite development and survival within the mosquito.
View Article and Find Full Text PDFMetallomics
July 2025
Marine Chemistry and Geochemistry Department, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, United States.
Pseudomonas aeruginosa is a major contributor to human infections and is widely distributed in the environment. Its ability for growth under aerobic and anaerobic conditions provides adaptability to environmental changes and in confronting immune responses. We applied native 2-dimensional metalloproteomics to P.
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