Results 121 to 130 of about 5,350,711 (346)

Ribozyme Activity of RNA Nonenzymatically Polymerized from 3′,5′-Cyclic GMP

open access: yesEntropy, 2013
3′,5′-Cyclic GMP spontaneously nonenzymatically polymerizes in a base-catalyzed reaction affording G oligonucleotides. When reacted with fully or partially sequence-complementary RNA (oligo C), the abiotically generated oligo G RNA displays a typical ...
Samanta Pino   +5 more
doaj   +1 more source

Immunoregulatory mechanisms of the arachidonic acid pathway in cancer

open access: yesFEBS Letters, EarlyView.
The central role of the arachidonic acid (AA) pathway in anticancer immunity. Enzymes and metabolites of the AA pathway can play both immunosuppressive and immunostimulatory roles in the tumor microenvironment. Therefore, their tailored targeting could be beneficial as a standalone therapy or in combination with current cancer immunotherapy.
Maria Tredicine   +3 more
wiley   +1 more source

Taurine promotes glucagon‐like peptide‐1 secretion in enteroendocrine L cells

open access: yesFEBS Letters, EarlyView.
Taurine, a sulfur‐containing amino acid, is likely taken up by enteroendocrine L cells via the taurine transporter. This process increases the levels of cytosolic ATP. The increase in intracellular Ca2+ concentrations and glucagon‐like peptide‐1 secretion through membrane depolarization is caused by the closure of ATP‐sensitive potassium channels ...
Yuri Osuga   +6 more
wiley   +1 more source

The Origin and Evolution of Viruses as Molecular Organisms [PDF]

open access: yes, 2009
Viruses are the most abundant life forms and the repertoire of viral genes is greater than that of cellular genes. It is also evident that viruses have played a major role in driving cellular evolution, and yet, viruses are not part of mainstream biology,
Claudiu I. Bandea
core   +2 more sources

The multiple roles of the NlpC_P60 peptidase family in mycobacteria – an underexplored target for antimicrobial drug discovery

open access: yesFEBS Letters, EarlyView.
The NlpC_P60 superfamily of peptidases is recognised by its key role in bacterial cell wall homeostasis. Recently, studies have also described the involvement of NlpC_P60‐like enzymes in bacterial competitive mechanisms and pathogenesis across several lineages.
Catharina dos Santos Silva   +1 more
wiley   +1 more source

Supplementation of beer with Pinus sylvestris L. shoots extracts and its effect on fermentation, phenolic content, antioxidant activity and sensory profiles

open access: yesElectronic Journal of Biotechnology, 2023
Background: The aim of this study was to determine the role of Pinus sylvestris L. shoots in the development of antioxidant and sensory features of wheat beer.
Marcin Dziedziński   +6 more
doaj  

Publications of the exobiology program for 1981: A special bibliography [PDF]

open access: yes
The exobiology program investigates the planetary events which were responsible for, or, related to, the origin, evolution, and distribution of life in the universe.
Devincenzi, D. L., Pleasant, L. G.
core   +1 more source

Making tau amyloid models in vitro: a crucial and underestimated challenge

open access: yesFEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

Neural Image Analysis and Electron Microscopy to Detect and Describe Selected Quality Factors of Fruit and Vegetable Spray-Dried Powders—Case Study: Chokeberry Powder

open access: yesSensors, 2019
The study concentrates on researching possibilities of using computer image analysis and neural modeling in order to assess selected quality discriminants of spray-dried chokeberry powder.
Krzysztof Przybył   +6 more
doaj   +1 more source

Investigation of compounds essential for the origin of life [PDF]

open access: yes
Nucleic acid sequencing as a technique to determine the chemical and biological evolution of certain prokaryotic metabolic pathways is discussed.
Dayhoff, M. O., Hunt, L. T.
core   +1 more source

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