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Event: 2237
Key Event Title
Decreased, Sodium plasma concentrations
Short name
Biological Context
Level of Biological Organization |
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Tissue |
Organ term
Key Event Components
Key Event Overview
AOPs Including This Key Event
AOP Name | Role of event in AOP | Point of Contact | Author Status | OECD Status |
---|---|---|---|---|
Decreased Na/K ATPase activity leads to Heart failure | KeyEvent | John Frisch (send email) | Under development: Not open for comment. Do not cite |
Taxonomic Applicability
Term | Scientific Term | Evidence | Link |
---|---|---|---|
Animals | Metazoa | High | NCBI |
Life Stages
Life stage | Evidence |
---|---|
All life stages | High |
Sex Applicability
Term | Evidence |
---|---|
Unspecific | High |
Key Event Description
Sodium plasma concentrations represent the end result of sodium influx and sodium efflux. Sodium uptake across membranes can occur via passive or active transport (Neverisky and Abbott 2015). In facilitated diffusion, sodium molecules move from high concentration to low concentration across a membrane pore. Active transport uses cellular energy (ex. adenosine triphosphate) to move sodium across membranes against its electrochemical gradient (ex. sodium-potassium pump).
How It Is Measured or Detected
Sodium concentrations can be measured via ion chromatography, spectrophotometry, or enzyme assays (Buzanovskii 2016).
Domain of Applicability
Life Stage: Applies to all life stages; not specific to any life stage.
Sex: Applies to both males and females; not sex-specific.
Taxonomic: Present broadly in animals as an essential nutrient and key determinant of osmolality.
References
Buzanovskii, V.A. 2016. Ion chromatography, spectrophotometry, titrimetry, and gravimetry measurements of sodium concentration in the blood. Measurement Techniques 59(6): 678-683.
Neverisky, D.L. and Abbott, G.W. 2015. Ion channel-transporter interactions. Critical Reviews in Biochemistry and Molecular Biology 51(4): 257–267.
NOTE: Italics symbolize edits from John Frisch