Results 61 to 70 of about 7,408 (290)

Comprehensive Characterization of Acer truncatum Leaf Extract: Identification of Systemic Metabolites and Effects on Performance, Antioxidant Status, and Intestinal Microbiota in Laying Hens

Animal Research and One Health, EarlyView.
Dietary A. truncatum leaf extract is absorbed and improves laying performance in aged hens by enhancing systemic antioxidant capacity and modulating the gut microbiota. ABSTRACT The demand for natural feed additives is considerably increasing in the antibiotic‐free feed era.
Kailong Qin, Jiantao Yang, Minglu Gao, Xiaozhao Tao, Xin Yang, Yanli Liu, Xiaojun Yang   +6 more
wiley   +1 more source

Physiologically‐based pharmacokinetic modelling of uridine 5′‐diphosphoglucorosultransferase (UGT) substrate drugs in pregnant women

British Journal of Clinical Pharmacology, EarlyView.
Aims While pregnancy‐related changes in phase I enzyme activity are well‐documented, less is known about the impact on phase II enzymes. This study aimed to test the hypothesis that changes in the pharmacokinetics (PK) of uridine 5′‐diphosphoglucuronosyltransferase (UGT) substrates during pregnancy result from altered enzyme expression or activity ...
William Saffaf, Ymke van der Velde, Paul R. V. Malik, Jelmer R. Prins, Sanne J. Gordijn, Daan J. Touw, Paola Mian   +6 more
wiley   +1 more source

Biotransformations in low-boiling hydrofluorocarbon solvents

, 2004
Solvent solutions: Low-boiling hydrofluorocarbons (see examples) are excellent solvents for lipase-catalyzed reactions and ideal replacements for conventional organic solvents and supercritical fluids as media for nonaqueous biotransformations.
Saul, Simon, Corr, Stuart, Micklefield, Jason   +2 more
core   +1 more source

Endogenous melatonin partial metabolic clearance as a potential endogenous marker of CYP1A2 activity

British Journal of Clinical Pharmacology, EarlyView.
Aims Cytochrome P450 1A2 (CYP1A2) exhibits substantial interindividual variability, necessitating appropriate phenotyping strategies for personalized pharmacotherapy. This study evaluated endogenous melatonin partial metabolic clearance (CLm(MEL)), calculated from urinary 6‐hydroxymelatonin (6‐O‐MEL) excretion and plasma melatonin (MEL) exposure, as a ...
Akitomo Yokokawa, Hayato Shimazaki, Shunji Igarashi, Yoshiki Tagawa, Naoki Hisada, Hiromi Shibasaki   +5 more
wiley   +1 more source

Imobilização de enzimas em suportes sólidos e aplicações sintéticas [PDF]

, 1999
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Curso de Química.o presente trabalho trata da imobilização de enzimas em suportes sólido, como a crisotila e o polioxietileno (PEO) e suas aplicações ...
Vieira, Mariana Antunes
core  

Semisynthetic peptide-lipase conjugates for improved biotransformations

, 2014
An efficient chemoselective method for the creation of semisynthetic lipases by site-specific incorporation of tailor-made peptides on the lipase-lid site was developed.
Carrasco-López, César, De Las Rivas, Blanca, Filice, Marco, Klett, Javier, Guisán, José Manuel, Hermoso, Juan A., Romero, Óscar, Palomo, José Miguel, Abian, Olga, Morreale, Antonio   +9 more
core   +1 more source

Codeine toxicity via breast Milk: Can this occur and implications for opiate therapy in children

British Journal of Clinical Pharmacology, EarlyView.
Codeine is commonly used in combination analgesic products. The use of codeine during breastfeeding can rarely be associated with serious adverse effects related to genetic polymorphisms affecting codeine's metabolism and disposition. Clinicians treating infants of breastfeeding mothers should be aware of this rare but potentially serious complication.
Michael Rieder
wiley   +1 more source

The Incubation of 13a,17-Dihydroxystemodane with Cephalosporium aphidicola

Molecules, 2012
The biotransformation of 13a,17-dihydroxystemodane (3) with the fungus Cephalosporium aphidicola afforded 13a,17,18-trihydroxystemodane (4), 3b,13a,17-tri-hydroxystemodane (5), 13a,17-dihydroxy-stemodan-18-oic acid (6), 3b,11β,13a,17-tetra ...
Juan A. Garbarino, María C. Chamy, Melchor G. Hernández, Ricardo Guillermo, Braulio M. Fraga   +4 more
doaj   +1 more source

Spray‐Dried Engineered Escherichia coli Whole‐Cell Biocatalysts Enable Cell Recycling and In Vivo α‐Ketoglutarate and NADPH Regeneration for Efficient Codeine Manufacture

Biotechnology and Bioengineering, EarlyView.
ABSTRACT A recombinant whole‐cell biocatalytic approach provides several advantages over isolated enzymes, such as improved enzyme stability, in vivo cofactor regeneration, and the facilitation of cascade reactions within a single cell. Whole‐cell biocatalysis has gained attention in medicinal opioid production, due to its technical and economic ...
Ali Jahanian, Carlos Horacio Luna‐Flores, Xu Li, Sally L. Gras, Robert E. Speight   +4 more
wiley   +1 more source

Supercritical Carbon Dioxide and Its Potential as a Life-Sustaining Solvent in a Planetary Environment

Life, 2014
Supercritical fluids have different properties compared to regular fluids and could play a role as life-sustaining solvents on other worlds. Even on Earth, some bacterial species have been shown to be tolerant to supercritical fluids.
Nediljko Budisa, Dirk Schulze-Makuch
doaj   +1 more source