Here we show the dependence of the unicellular biosensor S.ambigua lifespan on the water D/H isotopic composition. This dependence is bell-shaped with descents both in case of deficiency or excess of deuterium in water. The influence of the water D/H isotopic composition on the cell culture proliferative potential and colony forming efficiency in vitro was tested on the human dermal fibroblasts. We observed that the deuterium depleted water stimulates cell colony formation at the early passages. The dynamics of the cell doubling index in the deuterium depleted water-based growth medium showed higher proliferation potential compared to the water with normal isotopic composition. Using scratch assay, we have also studied the impact of the growth medium D/H isotopic composition on the cell motility of human cancer cell lines A549 and HT29. We have shown that the deuterium depleted water considerably suppressed cancer cell lines amoeboid movement in vitro.
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http://dx.doi.org/10.1016/j.jtemb.2018.05.004 | DOI Listing |
Amino Acids
January 2025
Laboratory of Molecular Biology and Immunology, Department of Pharmacy, University of Patras, 26500, Rio-Patras, Greece.
Taurine, although not a coding amino acid, is the most common free amino acid in the body. Taurine has multiple and complex functions in protecting mitochondria against oxidative-nitrosative stress. In this comprehensive review paper, we introduce a novel potential role for taurine in protecting from deuterium (heavy hydrogen) toxicity.
View Article and Find Full Text PDFPolymers (Basel)
December 2024
Chemistry Department, Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow 119991, Russia.
The peculiarities of the crystal formation from supersaturated aqueous solutions of CuSO on polymer substrates were studied using X-ray diffractometry. During the crystal formation, the test solutions were irradiated with one or two counter-propagating ultrasonic beams. Test solutions were prepared using natural deionized water with a deuterium content of 157 ± 1 ppm.
View Article and Find Full Text PDFSci Rep
December 2024
Physical Geography, Institute of Geography, Technical University Dresden, Dresden, Germany.
It is generally accepted that a weakening of the North Atlantic thermohaline circulation caused the Younger Dryas cooling. Although the role of seasonality was emphasized previously, this aspect is rarely considered yet, and it remains elusive how this impacted hydroclimate during winters and summers across Central Europe. Here, we coupled biomarker-based δO and δH from Bergsee in southern Germany to reconstruct deuterium excess as a proxy for evaporation history from the Bølling-Allerød to the Preboreal.
View Article and Find Full Text PDFPlants (Basel)
November 2024
Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic.
Heavy water (DO) is scarce in nature, and despite its physical similarity to water, DO disrupts cellular function due to the isotope effect. While microbes can survive in nearly pure DO, eukaryotes such as are more sensitive and are unable to survive higher concentrations of DO. To explore the underlying molecular mechanisms for these differences, we conducted a comparative proteomic analysis of , , and after 180 min of growth in a DO-supplemented media.
View Article and Find Full Text PDFMetabolomics
October 2024
Deutenomics Science Institute, Los Angeles, CA, USA.
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