Results 51 to 60 of about 370,027 (271)

One-Pot Formation of Pairing Proto-RNA Nucleotides and Their Supramolecular Assemblies

open access: yesLife, 2023
Most contemporary theories for the chemical origins of life include the prebiotic synthesis of informational polymers, including strong interpretations of the RNA World hypothesis.
Tyler P. Roche   +4 more
doaj   +1 more source

Cyclic nucleotide signaling as a drug target in retinitis pigmentosa

open access: yesFEBS Letters, EarlyView.
Disruptions in cGMP and cAMP signaling can contribute to retinal dysfunction and photoreceptor loss in retinitis pigmentosa. This perspective examines the mechanisms and evaluates emerging evidence on targeting these pathways as a potential therapeutic strategy to slow or prevent retinal degeneration.
Katri Vainionpää   +2 more
wiley   +1 more source

Key steps from the “RNA World” to the “DNA World”

open access: yesBIO Web of Conferences, 2014
In the « RNA World » hypothesis of the origin of life, RNAs are assumed to be the central macromolecules able to self-replicate, conserve information and catalyze the reactions necessary for a primitive metabolism and many enzymatic cofactors may be ...
Renard B.-L.   +3 more
doaj   +1 more source

The transition from noncoded to coded protein synthesis: did coding mRNAs arise from stability-enhancing binding partners to tRNA?

open access: yesBiology Direct, 2010
Background Understanding the origin of protein synthesis has been notoriously difficult. We have taken as a starting premise Wolf and Koonin's view that "evolution of the translation system is envisaged to occur in a compartmentalized ensemble of ...
Tate Warren, Bernhardt Harold
doaj   +1 more source

Molecular trade-offs in RNA ligases affected the modular emergence of complex ribozymes at the origin of life [PDF]

open access: yesRoyal Society Open Science, 2017
In the RNA world hypothesis complex, self-replicating ribozymes were essential. For the emergence of an RNA world, less is known about the early processes that accounted for the formation of complex, long catalysts from small passively formed molecules ...
Nisha Dhar   +3 more
doaj   +1 more source

Primordial RNA Replication and Applications in PCR Technology [PDF]

open access: yes, 2013
The emergence of self-replication and information transmission in life's origin remains unexplained despite extensive research on the topic. A hypothesis explaining the transition from a simple organic world to a complex RNA world is offered here based ...
Palasek, Stan
core  

Goodbye flat lymphoma biology

open access: yesFEBS Letters, EarlyView.
Three‐dimensional (3D) biological systems have become key tools in lymphoma research, offering reliable in vitro and ex vivo platforms to explore pathogenesis and support precision medicine. This review highlights current 3D non‐Hodgkin lymphoma models, detailing their features, advantages, and limitations, and provides a broad perspective on future ...
Carla Faria   +3 more
wiley   +1 more source

Verification of chemical evolution of RNA under hydrothermal environments on the primitive Earth

open access: yesBIO Web of Conferences, 2015
The RNA World hypothesis proposes that primitive forms of life used polymers resembling RNA both as catalysts and as carriers of genetic information. It has also been suggested that the origin of life occurred in hydrothermal conditions, but this implies
Kawamura Kunio   +4 more
doaj   +1 more source

From omics to AI—mapping the pathogenic pathways in type 2 diabetes

open access: yesFEBS Letters, EarlyView.
Integrating multi‐omics data with AI‐based modelling (unsupervised and supervised machine learning) identify optimal patient clusters, informing AI‐driven accurate risk stratification. Digital twins simulate individual trajectories in real time, guiding precision medicine by matching patients to targeted therapies.
Siobhán O'Sullivan   +2 more
wiley   +1 more source

Mechanochemical Reactivity of Ribonucleosides Mediated by Inorganic Species: Implications for Extraterrestrial Organic Matter Interpretation

open access: yesApplied Sciences
Metal species and carbonate are often found as minerals in extraterrestrial rocky bodies. Based on this, the mechanochemical-induced degradation of canonical purine and pyrimidine ribonucleosides into their corresponding nucleobases mediated by some of ...
Gustavo P. Maia   +7 more
doaj   +1 more source

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