Results 31 to 40 of about 58,605 (360)

Elevated extracellular calcium ions promote proliferation and migration of mesenchymal stem cells via increasing osteopontin expression

open access: yesExperimental and Molecular Medicine, 2018
Bone formation: released calcium could stimulate stem cells Studies with mouse cells and bone samples indicate how calcium ions released during the normal turnover of bone promote the supplementation of stem cells needed to make new bone during routine ...
Mi Nam Lee   +7 more
doaj   +1 more source

Deficiency of annexins A5 and A6 induces complex changes in the transcriptome of growth plate cartilage but does not inhibit the induction of mineralization [PDF]

open access: yes, 2009
Initiation of mineralization during endochondral ossification is a multistep process and has been assumed to correlate with specific interactions of annexins A5 and A6 and collagens.
Anderson   +54 more
core   +1 more source

Structural Characterization, Antioxidant Activity, and Biomedical Application of Astragalus Polysaccharide Degradation Products

open access: yesInternational Journal of Polymer Science, 2018
To study the antioxidant capacity of Astragalus polysaccharides (APS) with different molecular weights, we used hydrogen peroxide to degrade original Astragalus polysaccharide (APS0) with an initial molecular weight of 11.03 kDa and obtained three ...
Jian-Min Wang   +2 more
doaj   +1 more source

Ion Pathways in Biomineralization: Perspectives on Uptake, Transport, and Deposition of Calcium, Carbonate, and Phosphate

open access: yesJournal of the American Chemical Society, 2021
Minerals are formed by organisms in all of the kingdoms of life. Mineral formation pathways all involve uptake of ions from the environment, transport of ions by cells, sometimes temporary storage, and ultimately deposition in or outside of the cells ...
Keren Kahil   +3 more
semanticscholar   +1 more source

Magnetosome Gene Duplication as an Important Driver in the Evolution of Magnetotaxis in the Alphaproteobacteria [PDF]

open access: yes, 2019
The evolution of microbial magnetoreception (or magnetotaxis) is of great interest in the fields of microbiology, evolutionary biology, biophysics, geomicrobiology, and geochemistry.
Bazylinski, Dennis A.   +9 more
core   +4 more sources

Beneficial factors for biomineralization by ureolytic bacterium Sporosarcina pasteurii

open access: yesMicrobial Cell Factories, 2020
The ureolytic bacterium Sporosarcina pasteurii is well-known for its capability of microbially induced calcite precipitation (MICP), representing a great potential in constructional engineering and material applications.
Liang Ma   +4 more
semanticscholar   +1 more source

Biomineralization Kinetics of U(Ⅵ) on Bacillus sp.dwc-2

open access: yesYuanzineng kexue jishu, 2023
The U(Ⅵ) biomineralization on microorganisms will affect the chemical form and migration behavior of uranium in the environment. However, there are few studies on the kinetic behavior and the relevant mechanism of U(Ⅵ) biomineralization in the growth of ...
GUO Yuqi;TU Hong;LI Feize;LAN Tu;YANG Jijun;YANG Yuanyou;LIU Ning;LIAO Jiali
doaj   +1 more source

Conservation of magnetite biomineralization genes in all domains of life and implications for magnetic sensing

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2022
Significance We present a model of biogenic magnetite formation in eukaryotes and hypothesize this genetic mechanism is used by broad forms of life for geomagnetic sensory perception.
M. Bellinger   +5 more
semanticscholar   +1 more source

Concave Urinary Crystallines: Direct Evidence of Calcium Oxalate Crystals Dissolution by Citrate In Vivo

open access: yesBioinorganic Chemistry and Applications, 2013
The changes in urinary crystal properties in patients with calcium oxalate (CaOx) calculi after oral administration of potassium citrate (K3cit) were investigated via atomic force microscopy (AFM), scanning electron microscopy (SEM), X-ray powder ...
Yun-Feng Shang   +3 more
doaj   +1 more source

Inhibition of Urinary Macromolecule Heparin on Aggregation of Nano-COM and Nano-COD Crystals

open access: yesMolecules, 2015
Purpose: This research aims to study the influences of heparin (HP) on the aggregation of nano calcium oxalate monohydrate (COM) and nano calcium oxalate dihydrate (COD) with mean diameter of about 50 nm.
Yan Ou   +5 more
doaj   +1 more source

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