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Thinking about the action potential: the nerve signal as a window to ... frontiersin.org Frontiers 4 facts
claimIchiji Tasaki claimed that neuronal excitability is determined by the tuning of the bistable state of the ectoplasmic gel, which exists as a continuum of states ranging from a Ca2+-contracted form to a swollen Na+/K+ form.
claimDuring the excitation process, the ectoplasm undergoes a reversible and abrupt structural change when monovalent cations like sodium (Na+) are substituted for bivalent counter ions like calcium (Ca2+).
procedureAs an excited zone in the cortical cytoskeletal gel layer moves, the previous excited zone relaxes back to its resting state, a process during which water molecules surrounding the Na+-bound form are released upon Ca2+-binding, with two moles of Na+ exchanged per mole of Ca2+ bound.
referenceWilliams (1970) published a Tilden lecture in the Quarterly Reviews, Chemical Society regarding the biochemistry of sodium, potassium, magnesium, and calcium.
Human body | Organs, Systems, Structure, Diagram, & Facts britannica.com Britannica 3 facts
claimIons of calcium, phosphorus, sodium, potassium, and magnesium play vital roles in the metabolic processes of the human body.
claimThe human body contains inorganic minerals, including calcium, phosphorus, sodium, magnesium, and iron.
claimCalcium and sodium are present as ions in human blood and interstitial fluid.
Investigation of nutritional and phytochemical properties of wild ... nature.com Nature 3 facts
procedurePhosphorus in a plant digest is analyzed using the Canada-molybdate yellow color method, Potassium and Calcium are analyzed using a flame photometer, Sulfur is evaluated using a turbidimetric process, and Sodium, Zinc, Copper, Iron, and Manganese are determined using atomic absorption spectrophotometry.
measurementRybicka and Gliszczyńska-Świgło analyzed the content of calcium, potassium, magnesium, sodium, copper, iron, manganese, and zinc in grain gluten-free products in a 2017 study.
procedureMineral analysis of medicinal plants determines the presence of essential elements including sodium (Na), potassium (K), calcium (Ca), magnesium (Mg), iron (Fe), zinc (Zn), copper (Cu), and manganese (Mn).
Ethnobotanical and Food Composition Monographs of Selected ... ouci.dntb.gov.ua Javier Tardío, María de Cortes Sánchez-Mata, Ramón Morales, María Molina, Patricia García-Herrera, Patricia Morales, Carmen Díez-Marqués, Virginia Fernández-Ruiz, Montaña Cámara, Manuel Pardo-de-Santayana, María Cruz Matallana-González, Brígida María Ruiz-Rodríguez, Daniel Sánchez-Mata 1 fact
measurementThe fruit pulp of Ziziphus lotus contains significantly higher levels of sugar (35.25 to 48.87%), phosphorus (63.114 to 155.269 mg 100−1g), sodium (34.8 to 56.91 ppm), calcium (91.78 to 382.69 ppm), β-carotene (36.4 to 46 μg g−1), lycopene (59.15 to 100.25 μg g−1), and chlorophyll a (3.6 to 7.2 μg g−1) compared to the seeds.
The role of light in regulating plant growth, development and sugar ... frontiersin.org Frontiers 1 fact
measurementOnion plants grown under a blue-to-white light ratio of 1:3 show accumulation of calcium (Ca), magnesium (Mg), sodium (Na), iron (Fe), manganese (Mn), zinc (Zn), and boron (B).
A Scoping Review of Indicators for Sustainable Healthy Diets frontiersin.org Frontiers 1 fact
claimSuboptimal diets are characterized by low intake of fibers, fruits, vegetables, legumes, whole grains, nuts, seeds, milk, seafood, calcium, and healthy fats (omega-3 fatty acids, polyunsaturated fatty acids) and high intake of trans-fatty acids, sodium, red or processed meat, and sugar-sweetened beverages, according to Afshin et al. (2019).
Vernonia amygdalina: a comprehensive review of the ... frontiersin.org Frontiers 1 fact
claimVernonia amygdalina seeds contain vitamin C, vitamins B1 and B2, sodium, potassium, calcium, magnesium, iron, zinc, and manganese.