Results 121 to 130 of about 6,115,203 (305)

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Subclinical myocardial dysfunction detected by speckletracking in asymptomatic individuals with exerciseinduced premature ventricular complexes

Cardiovascular Ultrasound
Objective Exercise-induced premature ventricular complexes (EI-PVCs) are key indicators of subclinical cardiac dysfunction and elevated cardiovascular risk.
Muhammet Geneş, Uygar Çağdaş Yüksel
doaj   +1 more source

Dual RNA-seq reveals viral infections in asthmatic children without respiratory illness which are associated with changes in the airway transcriptome

Genome Biology, 2017
Background Respiratory illness caused by viral infection is associated with the development and exacerbation of childhood asthma. Little is known about the effects of respiratory viral infections in the absence of illness.
Agata Wesolowska-Andersen, Jamie L. Everman, Rebecca Davidson, Cydney Rios, Rachelle Herrin, Celeste Eng, William J. Janssen, Andrew H. Liu, Sam S. Oh, Rajesh Kumar, Tasha E. Fingerlin, Jose Rodriguez-Santana, Esteban G. Burchard, Max A. Seibold   +13 more
doaj   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Upregulated energy metabolism in the Drosophila mushroom body is the trigger for long-term memory

Nature Communications, 2017
Energy consumption in the brain is thought to respond to changes in neuronal activity, without informational role. Here the authors show that increased energy flux in the mushroom body, driven by a pair of input dopaminergic neurons, is a command for the
Pierre-Yves Plaçais, Éloïse de Tredern, Lisa Scheunemann, Séverine Trannoy, Valérie Goguel, Kyung-An Han, Guillaume Isabel, Thomas Preat   +7 more
doaj   +1 more source

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Resultados del ejercicio colombiano control de calidad 2009 de polimorfismos del adn en manchas de sangre

Iatreia, 2010
El Laboratorio Genes Ltda, Laboratorio Nacional de Referencia para los laboratorios que realizan pruebas de paternidad/maternidad con marcadores de ADN, ha diseñado y administrado el Ejercicio Control de Calidad 2009, invitando a participar laboratorios ...
J. J. Builes, D Aguirre, A. Manrique, Y. Puerto, M. L. Bravo, A. Gaviria, D. Suárez, D. I. Ángel, W. Usaquen, A. Castillo, C. Pineda, N. Ugalde, R. M. Barreto, A. Ibarra, D. E. Trejos, L. J. Hudy Hamouim, N. de Castro, O Carracedo, Leonor de Gusmão   +18 more
doaj  

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source