Key result
Central inhibition of p44/42 MAPK markedly attenuated endogenous AngII-induced sodium intake but not water intake or neurohypophysial hormone secretion in male rats.
Why the study?
Does p44/42 MAPK inhibition reduce AngII-induced sodium appetite, thirst, and neurohypophysial secretion in male rats?
Does p44/42 MAPK inhibition reduce AngII-induced sodium appetite, thirst, and neurohypophysial secretion in male rats?
p44/42 MAPK signaling is required for AngII-induced sodium appetite but not thirst or neurohypophysial secretion in male rats, suggesting a specific pathway that could be targeted to curb sodium appetite without affecting other fluid homeostasis mechanisms.
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Provides mechanistic insight into dissociated fluid control in rodents; leaves open clinical translation for sodium appetite disorders.
Felgendreger et al. (2012) studied Body fluid homeostasis / Sodium appetite. p44/42 MAPK inhibitor (U0126) and AT1R antagonist (irbesartan) was evaluated on Sodium intake, water intake, and AVP/OT release. Central inhibition of p44/42 MAPK markedly attenuated endogenous AngII-induced sodium intake but not water intake or neurohypophysial hormone secretion in male rats.
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