Results 51 to 60 of about 151,596 (239)

Prolongation of AV nodal refractoriness by Ruta graveolens in isolated rat hearts [PDF]

, 2008
Objectives: To evaluate concentration-dependent effects of total extract of Rusta graveolens and its purified alkaloid fraction on the nodal basic and functional properties.
Golalipour, M.J., Khori, V., Marjani, A., Nayebpour, M., Semnani, S.   +4 more
core  

Betalains and phenolic compounds of leaves and stems of Alternanthera brasiliana and Alternanthera tenella [PDF]

, 2018
Betacyanins and phenolic compounds from acetonitrile:acidified water extracts of Alternanthera brasiliana and Alternanthera tenella were characterized and quantified using a high-performance liquid chromatography system coupled with diode array and ...
Alvarez, I., De Ancos, B., Deladino, Lorena, Molina García, A. D., Schneider Teixeira, Aline, Sánchez Moreno, C.   +5 more
core   +1 more source

A New Era for Using Natural Pigments: The Case of the C50 Carotenoid Called Bacterioruberin

Biotechnology and Applied Biochemistry, EarlyView.
ABSTRACT Haloarchaea are extremophilic microorganisms belonging to the Archaea domain that require high salt concentrations to live, thus inhabiting ecosystems like salty ponds, salty marshes, or extremely salty lagoons. They are more abundant and widely distributed worldwide than initially expected.
Micaela Giani, Elena Valdés, José María Miralles‐Robledillo, Guillermo Martínez, Carmen Pire, Rosa María Martínez‐Espinosa   +5 more
wiley   +1 more source

Prescribing competence: The pros and cons of different methods for assessment

British Journal of Clinical Pharmacology, EarlyView.
Evaluating a medical graduate’s competence in rational prescribing is challenging. With the aim to guide and inspire teachers, this narrative review explores different methods that can be used to assess prescribing competence. Each method has its own advantages and disadvantages, and thus a mix of different assessment methods is needed throughout the ...
David J. Brinkman, Erik M. Donker, Jelle Tichelaar, on behalf of the CP4T programme   +3 more
wiley   +1 more source

Chromatographic Fingerprinting And Clustering Of Plantago Major L. From Different Areas In Indonesia [PDF]

, 2012
Plantago major L. is a ubiquitous herbaceous plant with many medicinal activities which has been extensively used in Indonesian traditional medicine. This plant grows at wide range of environment, has several subspecies and varieties, but could not be ...
Azminah, Azminah, Kartini, Kartini
core  

Metabolic engineering of Escherichia coli into a versatile glycosylation platform : production of bio‐active quercetin glycosides [PDF]

, 2015
Background: Flavonoids are bio-active specialized plant metabolites which mainly occur as different glycosides. Due to the increasing market demand, various biotechnological approaches have been developed which use Escherichia coli as a microbial ...
De Bruyn, Frederik, De Mey, Marjan, Duchi, Dries, Maertens, Jo, Van Bellegem, Wouter, Van Brempt, Maarten   +5 more
core   +5 more sources

GLP‐1 agonists and the gut microbiome: A bidirectional relationship

British Journal of Clinical Pharmacology, EarlyView.
Abstract Glucagon‐like peptide‐1 (GLP‐1) receptor agonists have transformed the management of type 2 diabetes mellitus (T2DM) and obesity, yet their interactions with the gut microbiome remain an emerging frontier in pharmacological and metabolic research.
Srinivas Kamath, Nicole S. L. Chan, Paul Joyce   +2 more
wiley   +1 more source

Hidden O‐Deglycosylation Activity Triggers O → C Rearrangement for Aryl Di‐C‐Glucoside Formation by the C‐Glycosyltransferase From Fortunella crassifolia

Biotechnology and Bioengineering, EarlyView.
Here, we uncovered an unexpected O‐deglycosylation activity of the C glycosyltransferase (FcCGT), forming phloretin (1) from phloretin 2'‐O‐glucoside (2). In the presence of UDP, FcCGT catalyzes the O→C rearrangement to yield nothofagin (3). Upon additional UDP‐glucose, further C‐glycosylation occurs, forming phloretin 3',5'‐di‐C‐glucoside (4 ...
Tuo Li, Annika J. E. Borg, Leo Krammer, Rolf Breinbauer, Bernd Nidetzky   +4 more
wiley   +1 more source

Synthesis and Glycosidase Inhibition Studies of Novel Exoglycals Targeting GH3 Family Enzymes: Insights from Comparative Analysis with Macrolide Antibiotics

Chemistry – A European Journal, EarlyView.
A series of structurally diverse exoglycals was synthesized using a modified Julia‐olefination approach from sugar‐derived precursors. These glycosidase transition‐state mimics were further diversified via CuAAC chemistry to yield triazole‐conjugated analogues.
Elisa Ospanow, Oscar L. Alferez, David L. Jakeman   +2 more
wiley   +1 more source

Catalysis by hen egg-white lysozyme proceeds via a covalent intermediate [PDF]

, 2001
Hen egg-white lysozyme (HEWL) was the first enzyme to have its three-dimensional structure determined by X-ray diffraction techniques(1). A catalytic mechanism, featuring a long-lived oxo-carbenium-ion intermediate, was proposed on the basis of model ...
A Federov, AL Fink, AT Brünger, BA Malcolm, BL Mark, CC Blake, Collaborative Computational Project Number 4, DC Phillips, DE Koshland, DM Chipman, E Holler, FW Ballardie, FW Dahlquist, G Sulzenbacher, GJ Davies, GJ Davies, GN Murshodov, I Matsumura, I Tews, ML Sinnott, NCJ Strynadka, Q Wang, R Kuroki, S Rosenberg, T Rand-Meir, TL Amyes, V Notenboom, WP Burmeister, Z Otwinowski   +28 more
core   +1 more source