@bunkershotphoto@EpochTimesCZ V onkologii se pětileté období bez známek nemoci (tzv. pětileté relativní přežití) běžně používá jako klíčový milník pro statistické hodnocení úspěšnosti léčby. Považuje se za indikátor toho, že riziko spojené s původním nádorem je minimální.
Dva lidé byli hospitalizování s lehkými zraněními po silném výbuchu továrny na ohňostroje na středomořské Maltě. Exploze poškodila okolní budovy a rozbila okna v okruhu několika kilometrů.
Researchers at the University of Nottingham in the UK have developed a groundbreaking protein-based gel that leverages calcium and phosphate ions, naturally abundant in human saliva, to repair and regenerate damaged tooth enamel.
This innovation, detailed in a study published in Nature Communications, represents a potential shift away from traditional "drill and fill" dentistry toward true enamel restoration.
The gel mimics the natural proteins that guide enamel formation during infancy. When applied to teeth, it forms a thin, robust layer that seeps into cracks and eroded areas.
Acting as a scaffold, it attracts and organizes calcium and phosphate from saliva (or even donated saliva samples), promoting "epitaxial mineralization"—a process where new enamel crystals grow in perfect alignment with the existing tooth structure, restoring its hardness and architecture.
Lab tests showed the regenerated enamel withstands real-world stresses like brushing, chewing, and acidic exposure (e.g., soda) as well as—or better than—natural enamel. It remained intact for weeks in simulated oral environments.
[Hasan, A. et al. Biomimetic supramolecular protein matrix restores structure and properties of human dental enamel. Nat Commun 16, 9434 (2025). DOI: 10.1038/s41467-025-64982-y]
@Petrulesa@_promar_ Ano, tam je limit 60 kg. V sukromnych centrach 50 kg. A aj tam sa da plazma darovat uplne bezprispevkovo a svoj prispevok venovat na nejaky charitativny ucel.