Results 21 to 30 of about 252,417 (236)

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

open access: yesFEBS 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

Comportamiento de la línea de costa en la playa Boca de Galafre, Pinar del Río (2004-2023)

open access: yesRevista de Investigaciones Marinas
La investigación analizó la evolución de la línea de costa en la playa Boca de Galafre, por medio de la fotointerpretación de imágenes satelitales (2004-2023) vía Google Earth Profesional con el objetivo de analizar los desplazamientos morfométricos de ...
Christian Daniel Velázquez Núñez   +2 more
doaj   +1 more source

Small RNA pathways in mammalian oocytes

open access: yesFEBS Open Bio, EarlyView.
Three distinct small RNA pathways operate in mammalian oocytes: RNAi interference (RNAi), the microRNA (miRNA) pathway, and the PIWI‐associated RNA (piRNA) pathway. These pathways use small RNAs to guide sequence‐specific repression and contribute to oocyte biology by targeting genes and mobile elements or appear insignificant since different ...
Petr Svoboda, Josef Pasulka
wiley   +1 more source

Adopción y difusión de prácticas de no laboreo en el olivar de la provincia de Granada

open access: yesEconomía Agraria y Recursos Naturales, 2011
En este trabajo se analiza el proceso de adopción del no laboreo en el olivar de la provincia de Granada utilizando información procedente de un sondeo realizado en 2005-2006 a 215 olivicultores. Se analiza en primer lugar el proceso de difusión agregada
Juan Agustín Franco, Javier Calatrava
doaj   +1 more source

Análisis de flujos hidrodinámicos bidimensionales en superficies de los taludes del trópico

open access: yesTecnología en Marcha, 2023
Pocos estudios reflejan los comportamientos hidrodinámicos de los flujos superficiales en taludes del trópico, a pesar de la cantidad de herramientas de modelación con las que se cuenta en la actualidad. La presente investigación es un aporte que ayuda a
Ronald Andrés Rodríguez-Poltronieri   +1 more
doaj   +1 more source

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

open access: yesAging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Arterial Spin‐Labeling MRI at the Cortical‐CSF Interface: A Novel Biomarker in Alzheimer Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background/Objective Arterial spin‐labeling (ASL) MRI can measure perfusion signal adjacent to CSF spaces and may provide information regarding CSF‐adjacent water transport physiology. We developed an automated pipeline to extract cortical‐CSF interface (IF) perfusion for comparison between Alzheimer disease (AD) and cognitively normal ...
Mona Asghariahmadabad   +22 more
wiley   +1 more source

Biopsychosocial Determinants of Hand Function and Its Trajectories Over Five Years in Patients With Hand Osteoarthritis

open access: yesArthritis Care &Research, EarlyView.
Objective This study aimed to investigate hand function trajectories over five years in primary hand osteoarthritis (OA). Additionally, determinants of baseline and longitudinal hand function were assessed. Methods A total of 538 patients with both baseline and five‐year study visits were analyzed.
Annemiek V. E. M. Olde Meule   +4 more
wiley   +1 more source

Erosión mecánica (tillage erosion) vs. erosión hídrica

open access: yes, 2005
© Raimundo Jiménez Ballesta y Ana María Álvarez González.La redistribución del suelo por arrastre mecánico durante las operaciones agrícolas de laboreo ha sido reconocido como un proceso per se de intensa degradación del suelo.
Alba Alonso, Saturnino De, Van Oost, K.
core   +1 more source

Health Care Use Among Patients Presenting to Emergency Department for Gout Flares in Ontario, Canada: A Population‐Based Health Systems Analysis

open access: yesArthritis Care &Research, EarlyView.
Objective We characterized emergency department (ED) gout visits and identified patient characteristics and health services patterns contributing to ED presentations. Methods We conducted a population‐based study of ED gout visits in Ontario, Canada, between 2014 and 2023.
Timothy S. H. Kwok   +7 more
wiley   +1 more source

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