Zircon s reveal the geochemistry of Earth's earliest hydrothermal systems.
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An irreversible thermodynamic model of prebiological dissipative molecular structures inside vacuoles at the surface of the Archean Ocean.
Biosystems
January 2025
Departamento de Estado Sólido, Instituto de Física, Universidad Nacional Autónoma de México, Circuito de la Investigación Científica, Ciudad Universitaria, Ciudad de México, 04510, Mexico.
A prebiotic model, based in the framework of thermodynamic efficiency loss from small dissipative eukaryote organisms is developed to describe the maximum possible concentration of solar power to be dissipated on topological circular molecules structures encapsulated in lipid-walled vacuoles, which floated in the Archean oceans. By considering previously, the analysis of 71 species examined by covering 18 orders of mass magnitude from the Megapteranovaeangliae to Saccharomyces cerevisiae suggest that in molecular structures of smaller masses than any living being known nowadays, the power dissipation must be directly proportional to the power of the photons of solar origin that impinge them to give rise to the formation of more complex self-assembled molecular structures at the prebiotic stage by a quantum mechanics model of resonant photon wavelength excitation. The analysis of 12 circular molecules (encapsulated in lipid-walled vacuoles) relevant to the evolution of life on planet Earth such as the five nucleobases, and some aromatic molecules as pyrimidine, porphyrin, chlorin, coumarin, xanthine, etc.
View Article and Find Full Text PDFDo-Nothing Prebiotic Chemistry: Chemical Kinetics as a Window into Prebiotic Plausibility.
Acc Chem Res
January 2025
Astrophysics Group, Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom.
ConspectusOrigin of Life research is a fast growing field of study with each year bringing new breakthroughs. Recent discoveries include novel syntheses of life's building blocks, mechanisms of activation and interaction between molecules, and newly identified environments that provide promising conditions for these syntheses and mechanisms. Even with these new findings, firmly grounded in rigorous laboratory experiments, researchers often find themselves uncertain about how to apply them.
View Article and Find Full Text PDFPrebiotic Nucleoside Phosphorylation in a Simulated Deep-Sea Supercritical Carbon Dioxide-Water Two-Phase Environment.
Astrobiology
December 2024
Earth-Life Science Institute, Institute of Science Tokyo, Tokyo, Japan.
Article Synopsis
- Prebiotic synthesis of complex organic molecules has been difficult, but recent observations of liquid CO emissions in deep-sea environments suggest the existence of benthic CO pools.
- A new hypothesis proposes that a two-phase environment of supercritical CO (ScCO) and water can enhance the dehydration and condensation of organic compounds.
- Experiments demonstrated that this ScCO-water environment successfully produced various nucleoside monophosphates, indicating its potential to stimulate prebiotic nucleotide synthesis in extreme conditions, relevant both on Earth and in extraterrestrial ocean worlds.
Microbiota during pregnancy and early life: role in maternal-neonatal outcomes based on human evidence.
Gut Microbes
August 2024
Department of Translational Medical Science, and ImmunoNutritionLab at Ceinge Advanced Biotechnologies Research Center, and European Laboratory for Investigation of Food Induced Diseases, University of Naples Federico II, Naples, Italy.
Here, we explored the vast potential of microbiome-based interventions in preventing and managing non-communicable diseases including obesity, diabetes, allergies, celiac disease, inflammatory bowel diseases, malnutrition, and cardiovascular diseases across different life stages. We discuss the intricate relationship between microbiome and non-communicable diseases, emphasizing on the "window of opportunity" for microbe-host interactions during the first years after birth. Specific biotics and also live biotherapeutics including fecal microbiota transplantation emerge as pivotal tools for precision medicine, acknowledging the "one size doesn't' fit all" aspect.
View Article and Find Full Text PDFShaping Microbiota During the First 1000 Days of Life.
Adv Exp Med Biol
July 2024
Department of Biotechnology, Institute of Agrochemistry and Food Technology-National Research Council (IATA-CSIC), Paterna-Valencia, Spain.
Article Synopsis
- Understanding the immune response's role in shaping host-microbe interactions is crucial, especially from conception to early childhood.
- The paper reviews research on human reproductive microbiota and microbial colonization in infants, highlighting its significance for health and development.
- It suggests that dietary strategies, including targeted probiotics, may effectively influence maternal and neonatal microbiota, potentially improving health outcomes for life.
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