Results 61 to 70 of about 5,194,805 (386)

Micro-RNA-1 is decreased by hypoxia and contributes to the development of pulmonary vascular remodeling via regulation of sphingosine kinase 1 [PDF]

open access: yes, 2018
Sphingosine kinase 1 (SphK1) upregulation is associated with pathologic pulmonary vascular remodeling in pulmonary arterial hypertension (PAH), but the mechanisms controlling its expression are undefined.
Chen, Jiwang   +6 more
core   +1 more source

RT-PCR detection of SARS-CoV-2 in nasopharyngeal and salivary specimens: contribution of alternative collection systems and extraction processes to cope with mass screening. Interpretation of low viral loads

open access: yesJournal of Laboratory Medicine, 2022
Due to massive screening of the persistent coronavirus SARS-CoV-2, supply difficulties emerged for swabs and extraction reagents leading to test alternative choices.
Robinet Sylvain   +7 more
doaj   +1 more source

Interaction vesicles as emerging mediators of host‐pathogen molecular crosstalk and their implications for infection dynamics

open access: yesFEBS Letters, EarlyView.
Interaction extracellular vesicles (iEVs) are hybrid vesicles formed through host‐pathogen communication. They facilitate immune evasion, transfer pathogens' molecules, increase host cell uptake, and enhance virulence. This Perspective article illustrates the multifunctional roles of iEVs and highlights their emerging relevance in infection dynamics ...
Bruna Sabatke   +2 more
wiley   +1 more source

Mapping RNA–RNA interactome and RNA structure in vivo by MARIO [PDF]

open access: yesNature Communications, 2016
AbstractThe pervasive transcription of our genome presents a possibility of revealing new genomic functions by investigating RNA interactions. Current methods for mapping RNA–RNA interactions have to rely on an ‘anchor’ protein or RNA and often require molecular perturbations.
Nguyen, Tri C   +9 more
openaire   +5 more sources

Force for ancient and recent life: viral and stem-loop RNA consortia promote life. [PDF]

open access: yes, 2014
Lytic viruses were thought to kill the most numerous host (i.e., kill the winner). But persisting viruses/defectives can also protect against viruses, especially in a ubiquitous virosphere. In 1991, Yarmolinsky et al.
Villarreal, Luis P
core   +1 more source

A stepwise emergence of evolution in the RNA world

open access: yesFEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

Real-time PCR for quantitation of bovine viral diarrhea virus RNA using SYBR Green I fluorimetry

open access: yesVeterinární Medicína, 2007
Quantitative real-time RT-PCR (qRT-PCR) assay was developed for the detection and quantification of bovine viral diarrhea virus (BVDV) in clinical samples from persistently infected cattle. qRT-PCR was optimized to quantify the number of BVD virus copies
E. Kosinova   +3 more
doaj   +1 more source

Transcription-translation coupling: direct interactions of RNA polymerase with ribosomes and ribosomal subunits. [PDF]

open access: yes, 2017
In prokaryotes, RNA polymerase and ribosomes can bind concurrently to the same RNA transcript, leading to the functional coupling of transcription and translation.
Blaha, Gregor M   +9 more
core   +1 more source

Evolutionary interplay between viruses and R‐loops

open access: yesFEBS Letters, EarlyView.
Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi   +4 more
wiley   +1 more source

Traffic into silence: endomembranes and post-transcriptional RNA silencing. [PDF]

open access: yes, 2014
microRNAs (miRNAs) and small interfering RNAs (siRNAs) are small RNAs that repress gene expression at the post-transcriptional level in plants and animals. Small RNAs guide Argonaute-containing RNA-induced silencing complexes to target RNAs in a sequence-
Chen, Xuemei   +2 more
core   +3 more sources

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