Low Sodium in Blood Triggers Anxiety in Mice by Disrupting Their Brain Chemistry
a year ago
- #anxiety
- #neuroscience
- #hyponatremia
- Chronic hyponatremia (CHN) induces anxiety-like behaviors in mice by disrupting serotonin and dopamine levels in the amygdala.
- CHN reduces extracellular signal-regulated kinase (ERK) phosphorylation, affecting emotional regulation.
- The study found that correcting sodium levels reverses anxiety-like behaviors and normalizes neurotransmitter levels.
- Hyponatremia is commonly caused by conditions like liver cirrhosis, heart failure, or syndrome of inappropriate antidiuresis (SIAD).
- The brain adapts to low sodium via volume regulatory decrease (VRD), but this leads to physiological costs.
- Researchers used a mouse model with desmopressin infusion and a liquid diet to mimic SIAD and observed increased anxiety-like behaviors.
- The findings suggest CHN has neurological and psychological consequences, emphasizing the need for early diagnosis and treatment.
- The study was published in Molecular Neurobiology and involved researchers from Fujita Health University.