what does the l stand for in l glutathione L- vs Glutathione: A Detailed Distinction With its role in the bodys detoxifying processes Glutathione - Wikipedia
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Whilst we found that ex vivo vehicle treated cells produced high levels of cytokines, including IL-5, IL-13, IL-9 ( Supplementary Figures 4BD ), and modest amounts of IL-10 and IL-6 ( Supplementary Figures 4E, F ), melatonin treatment greatly reduced the concentration of all cytokines analyzed ( Supplementary Figures 4B F )

doi: 10.1016/S0090-4295(96)00313-5 60 SalehRAAgarwalASharmaRKNelsonDRThomasAJJr

Therapeutic effects of orally administration of viable and inactivated probiotic strains against murine urinary tract infection
Ninfali P, Antonini E, Frati A, et al
