[1] The forward pathway is present in several bacteria, such as Escherichia coli [2] and Bacillus subtilis , [3] and involves the transfer of the thiol group from cysteine to homocysteine (methionine precursor with the S-methyl group), thanks to the -replacement of the acetyl or succinyl group of a homoserine with cysteine via its thiol group to form cystathionine (catalysed by cystathionine -synthase, which is encoded by metB in E
PMID 18506437
34 , e35 (2022)
Abbreviations: AM (alveolar macrophage), BAL (bronchoalveolar lavage), DC (dendritic cell), e-cig (e-cigarette), e-cig vaped extract (EVE), gen (generation), h (hour), min (minute), NK (natural killer), PG (propylene glycol), THC (tetrahydrocannabinol), VG (vegetable glycerin) Eosinophils are involved in combating parasitic, bacterial, and viral infections and certain cancers and have pathologic roles in atopic diseases including asthma(57)