Transporters serve as the entry and exit channels of amino acids and act as probes for sensing amino acid concentrations and promoters of nutritional signals
This increase was already described for tpxD under aerobic cultures compared with bacterial cells cultured under anaerobic conditions [5], but here we report this phenotype under H 2 O 2 exposition (Fig
Additionally, in a separate metabolic pathway known as the transsulfuration (cystathionine) pathway, methionine can be metabolized in the liver to provide an alternative source of cysteine for GSH production [83,96,97]
established a direct neurotoxic action by acetaminophen both in vitro and in vivo in rats at doses below those required to produce hepatotoxicity and suggested that this neurotoxicity might be involved in the general toxic syndrome observed during patient acetaminophen overdose and, possibly, when acetaminophen doses in the upper dosing schedule are used, especially if other risk factors (moderate alcohol drinking, fasting, nutritional impairment) are present
