Results 21 to 30 of about 42,070 (313)
The SKA as a prebiotic molecule detector [PDF]
, 2022 One of the theories for the origin of life proposes that a significant fraction of prebiotic material could have arrived to Earth from outer space between 4.1 and 3.8 billion years ago. This suggests that those prebiotic compounds could have originated in interstellar space, to be later on incorporated to small Solar-system bodies and planetesimals ...
arxiv +1 more source
On the Origins of Life's Homochirality: Inducing Enantiomeric Excess with Spin-Polarized Electrons [PDF]
Proc. Natl. Acad. Sci. U.S.A. 119 (2022), 2022 Life as we know it is homochiral, but the origins of biological homochirality on early Earth remain elusive. Shallow closed-basin lakes are a plausible prebiotic environment on early Earth, and most are expected to have significant sedimentary magnetite deposits.
arxiv +1 more source
Immunomodulation of Avian Dendritic Cells under the Induction of Prebiotics
Animals, 2020 Although the immunomodulatory properties of prebiotics were demonstrated many years ago in poultry, not all mechanisms of action are yet clear. Dendritic cells (DCs) are the main antigen-presenting cells orchestrating the immune response in the chicken ...
Vladimir Zmrhal, Petr Slama
doaj +1 more source
Foods, 2023 Prebiotics have become an important functional food because of their potential for modulating the gut microbiota and metabolic activities. However, different prebiotics can stimulate the growth of different probiotics.
Ekkachai Kaewarsar +5 more
doaj +1 more source
Prebiotic Homochirality as a Critical Phenomenon [PDF]
Orig.Life.Evol.Biosph.36:501-505,2006, 2006 The development of prebiotic homochirality on early-Earth or another planetary platform may be viewed as a critical phenomenon. It is shown, in the context of spatio-temporal polymerization reaction networks, that environmental effects -- be them temperature surges or other external disruptions -- may destroy any net chirality previously produced.
arxiv +1 more source
The Surface UV Environment on Planets Orbiting M-Dwarfs: Implications for Prebiotic Chemistry & Need for Experimental Follow-Up [PDF]
Ranjan, S., Wordsworth, R., & Sasselov, D. D., 2017, ApJ, 843, 11, 2017 Potentially-habitable planets orbiting M-dwarfs are of intense astrobiological interest because they are the only rocky worlds accessible to biosignature search over the next 10+ years due to a confluence of observational effects. Simultaneously, recent experimental and theoretical work suggests that UV light may have played a key role in the origin of
arxiv +1 more source
The utilisation of prebiotics and synbiotics in dogs
Italian Journal of Animal Science, 2014 The microbiota of the large intestine plays a fundamental role in maintaining the state of health of the gastrointestinal tract and the host. The use of specific dietary supplements such as prebiotics and synbiotics might positively influence the ...
Carlo Pinna, Giacomo Biagi
doaj +1 more source
New models of reflection spectra for terrestrial exoplanets: Present and prebiotic Earth orbiting around stars of different spectral types [PDF]
, 2023 In order to recognize a habitable exoplanet from future observed spectra, we present new model reflected spectra and geometric albedo for modern and prebiotic (3.9 Ga) Earth-like exoplanets orbiting within the habitable zone of stars of spectral types F, G, K and M.
arxiv +1 more source
Prebiotics: Ignored player in the fight against cancer
Cancer Reports, 2023 Background Prebiotics is a relatively neglected area in cancer research, despite evidence suggesting that it plays a key role in suppressing tumour growth and improving immune function.
Parichita Mishra +6 more
doaj +1 more source
Prebiotics in Global and Mexican Fish Aquaculture: A Review
Animals, 2023 Continued human population growth has resulted in increased demand for products, including those derived from aquaculture. The main challenge in aquaculture is producing more every year.
Jesús Mateo Amillano-Cisneros +8 more
doaj +1 more source