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Micellar Choline-Acetyltransferase Complexes Exhibit Ultra-Boosted Catalytic Rate for Acetylcholine Synthesis-Mechanistic Insights for Development of Acetylcholine-Enhancing Micellar Nanotherapeutics.
Int J Mol Sci
December 2024
Division of Clinical Geriatrics, Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, 141 57 Stockholm, Sweden.
Choline-acetyltransferase (ChAT) is the key cholinergic enzyme responsible for the biosynthesis of acetylcholine (ACh), a crucial signaling molecule with both canonical neurotransmitter function and auto- and paracrine signaling activity in non-neuronal cells, such as lymphocytes and astroglia. Cholinergic dysfunction is linked to both neurodegenerative and inflammatory diseases. In this study, we investigated a serendipitous observation, namely that the catalytic rate of human recombinant ChAT (rhChAT) protein greatly differed in buffered solution in the presence and absence of Triton X-100 (TX100).
View Article and Find Full Text PDFMixed Micellization and Density Functional Theory (DFT) Studies on the Molecular Interactions between Gemini and Nonionic Surfactants.
J Oleo Sci
January 2025
Center of Excellence for Advanced Materials Research, King Abdulaziz University.
In the present study, the mixed micellization behavior of gemini surfactant-1, 5-bis (N-hexadecyl- N, N-dimethylammonium) pentane dibromide (G5) with non-ionic surfactant triton X-100 (TX-100) was investigated in the micellar phase by utilizing the conductometric technique. The deviation of ideal critical micelle concentration (cmc*) from experimental critical micelle concentration (cmc) has been estimated using well-known Clint's theory of mixed micelles. The regular solution approximation was used to determine the interaction parameter (β) and found to be negative.
View Article and Find Full Text PDFRecovery of alkaline proteinases from fisheries wastes: biochemical characterization and applications.
J Fish Biol
December 2024
Instituto de Investigaciones Marinas y Costeras, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, CCT - Mar del Plata, Consejo Nacional de Investigaciones Científicas y Tecnicas, Mar del Plata, Argentina.
Fish visceral waste, which is normally discarded, is considered one of the richest sources of proteinases with potential biotechnological applications. For this reason, alkaline proteinases from viscera of Argentine hake Merluccius hubbsi, Brazilian flathead Percophis brasiliensis, Brazilian codling Urophycis brasiliensis, and stripped weakfish Cynoscion guatucupa were characterized. Individuals were caught by a commercial fleet off the coast of the Argentinean Sea.
View Article and Find Full Text PDFEvaluation of effectiveness of bacteriophage purification methods.
Virol J
December 2024
Department of Rural Clinical Sciences, La Trobe Rural Health School, La Trobe University, Bendigo, VIC, 3550, Australia.
The use of bacteriophages for therapy has increased over the last decade. While there is need for clear regulatory pathways for bacteriophage approval for mainstream use in clinical practice, practitioners and patients have been able to access bacteriophage therapy under compassionate grounds and through magistral preparations. However, there is currently no standard for purifying these bacteriophages to ensure safety, and good manufacturing practice certification may not be achieved in these emergency uses.
View Article and Find Full Text PDFCharacterization of the three-phase partitioned laccase from Trametes versicolor strain with antiproliferative activity against breast cancer cells.
Int J Biol Macromol
December 2024
Department of Medical Biology, Faculty of Medicine, Sakarya University, 54050, Sakarya, Turkey.
An extracellular laccase from T. versicolor was 20.4-fold purified by three-phase partitioning with high recovery (245 %) and biochemically characterized in detail for the first time.
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