Results 31 to 40 of about 3,994,896 (409)

Calcium signaling [PDF]

open access: yesCell, 1995
Calcium ions (Ca(2+)) impact nearly every aspect of cellular life. This review examines the principles of Ca(2+) signaling, from changes in protein conformations driven by Ca(2+) to the mechanisms that control Ca(2+) levels in the cytoplasm and organelles.
openaire   +3 more sources

Imaging neural activity in worms, flies and mice with improved GCaMP calcium indicators

open access: yesNature Methods, 2009
Genetically encoded calcium indicators (GECIs) can be used to image activity in defined neuronal populations. However, current GECIs produce inferior signals compared to synthetic indicators and recording electrodes, precluding detection of low firing ...
L. Tian   +13 more
semanticscholar   +1 more source

Identification of small molecules as novel anti-adipogenic compounds based on Connectivity Map

open access: yesFrontiers in Endocrinology, 2022
Several physiological and pathological conditions such as aging, obesity, diabetes, anorexia nervosa are associated with increased adipogenesis in the bone marrow.
Shuang Zhang   +5 more
doaj   +1 more source

Relative Bioavailability of Calcium from Calcium Formate, Calcium Citrate, and Calcium Carbonate [PDF]

open access: yesThe Journal of Pharmacology and Experimental Therapeutics, 2005
Calcium is an essential nutrient required in substantial amounts, but many diets are deficient in calcium making supplementation necessary or desirable. The objective of this study was to compare the oral bioavailability of calcium from calcium formate, a new experimental dietary calcium supplement, to that of calcium citrate and calcium carbonate.
Hanzlik, Robert P.   +2 more
openaire   +2 more sources

Calcium Absorption from Food Products: Food Matrix Effects

open access: yesNutrients, 2021
This article reviews physicochemical aspects of calcium absorption from foods. Notable differences are observed between different food products in relation to calcium absorption, which range from 50% of calcium in the foods.
Blerina Shkembi, T. Huppertz
semanticscholar   +1 more source

When, where and how? Focus on neuronal calcium dysfunctions in Alzheimer's Disease. [PDF]

open access: yes, 2016
Alzheimer\u2019s disease (AD), since its characterization as a precise form of dementia with its own pathological hallmarks, has captured scientists\u2019 attention because of its complexity.
AGOSTINI, MARIO, FASOLATO, CRISTINA
core   +1 more source

Bioactive calcium phosphate materials and applications in bone regeneration

open access: yesBiomaterials Research, 2019
BackgroundBone regeneration involves various complex biological processes. Many experiments have been performed using biomaterials in vivo and in vitro to promote and understand bone regeneration.
Jiwoong Jeong   +4 more
semanticscholar   +1 more source

Calcium waves [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2004
Waves through living systems are best characterized by their speeds at 20°C. These speeds vary from those of calcium action potentials to those of ultraslow ones which move at 1–10 and/or 10–20 nm s−1. All such waves are known or inferred to be calcium waves.
openaire   +2 more sources

Interactions of short-term and chronic treadmill training with aging of the left ventricle of the heart [PDF]

open access: yes, 2015
With aging, there is a decline in cardiac function accompanying increasing risk of arrhythmias. These effects are likely to be mechanistically associated with age-associated changes in calcium regulation within cardiac myocytes.
Close, Graeme L.   +6 more
core   +2 more sources

Titanium Dioxide Promotes the Growth and Aggregation of Calcium Phosphate and Monosodium Urate Mixed Crystals

open access: yesCrystals, 2023
The increased utilization of titanium dioxide (TiO2) nanoparticles (TNPs) in various industrial and consumer products has raised concerns regarding its harmful effect due to its accumulation within the different systems of the human body.
Onyebuchi C. Ukaeje   +1 more
doaj   +1 more source

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