Propionate metabolism ruminants

In rabbits, fetal weight reduction and cleft palate were observed at a fluticasone propionate dose approximately times the MRHDID for adults (on a mg/m² basis at a maternal subcutaneous dose of 4 mcg/kg/day). However, no teratogenic effects were reported at fluticasone propionate doses up to approximately 20 times the MRHDID for adults (on a mg/m² basis at a maternal oral dose up to 300 mcg/kg/day). No fluticasone propionate was detected in the plasma in this study, consistent with the established low bioavailability following oral administration [see CLINICAL PHARMACOLOGY ].

In propionic acidemia , a rare inherited genetic disorder, propionate acts as a metabolic toxin in liver cells by accumulating in mitochondria as propionyl-CoA and its derivative, methylcitrate, two tricarboxylic acid cycle inhibitors. Propanoate is metabolized oxidatively by glia , which suggests astrocytic vulnerability in propionic acidemia when intramitochondrial propionyl-CoA may accumulate. Propionic acidemia may alter both neuronal and glial gene expression by affecting histone acetylation. [19] [20] When propionic acid is infused directly into rodents' brains, it produces reversible behavior (., hyperactivity , dystonia , social impairment, perseveration ) and brain changes (., innate neuroinflammation, glutathione depletion) that may be used as a means to model autism in rats. [19]

Propionate metabolism ruminants

propionate metabolism ruminants

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