Abbreviations ABC : ATP binding cassette AMT : Absorption-mediated transport ARPE19 : Human retinal pigment epithelial cell line ASCT : Alanine/Serine/Cysteine-preferring transporter AUC : Area under the total concentration time curve BBB : Bloodbrain barrier BCEC : Bovine caruncular epithelial cell line BCH : 2-Amino-2-Norbornanecarboxylic Acid BCRP : Breast cancer resistance protein BCSFB : Bloodcerebrospinal fluid barrier BGT : Sodium- and chloride-dependent betaine transporter BMVEC : Bovine pulmonary microvessel endothelial cells BUI : Brain uptake index CB : Cellular barrier Cl : Clearance CMT : Carrier-mediated transport CNS : Central nervous system COX : Cyclooxygenase C : max Maximum concentration C : u, cell Unbound concentrations of drugs inside the brain parenchymal cells CSF : Cerebrospinal fluid DMSO : Dimethyl sulfoxide DPPH-HPLC : 2,2-Diphenyl-1-picrylhydrazyl-high performance liquid chromatography EAAT : Excitatory amino acid transporter ECF : Extracellular fluid ENT : Equilibrative nucleoside transporter FATP : Fatty acid transporter protein LCFA : Long-chain fatty acids hCMEC/D3 : Human brain endothelial capillary cell line D3 GABA : Gamma-aminobutyric acid GLUT : Glucose transporter IC50 : Concentration at which a substance exerts half of its maximal inhibitory effect ISF : Brain interstitial fluid K : i Inhibitory constant K : in Unidirectional transfer constant K : m Substrate concentration at which the reaction rate is half of its maximal value K : p Ratio of total concentrations in the brain and plasma K p : ,uu,brain Ratio of unbound concentrations in the brain ISF and plasma K p : ,uu,cell Unbound drug concentration ratio in intra- and extracellular compartments of the brain LAT1 : Large neutral amino acid transporter MCT : Monocarboxylic acid transporter MDCKII : Madin Darby canine kidney cell line MDR1 : Multidrug resistance protein 1 MPTP : 1,2,3,6-Methyl-phenyl-tetrahydropyridin MRP : Multidrug resistance-associated protein NMDA : N -Methyl-D-aspartate NVU : Neurovascular unit OAT : Organic anion transporter OATP : Organic-anion-transporting polypeptide OCT : Organic cation transporter OCTN2 : Organic cation / carnitine transporter 2 6-OHDA : 6-Hydroxydopamin PET : Positron emission tomography P-gp : P-glycoprotein PK : Pharmacokinetics PS : Permeability surface area product RFC : Reduced folate carrier rT3 : Reverse triiodothyronine SLC : Solute carrier SPECT : Single-photon emission computed tomography SUR1 : Sulfonylurea receptor SVCT2 : Sodium-dependent vitamin C transporter 2 T3 : Triiodothyronine T4 : Thyroxine TJ : Tight junction V : brain ISF Volume of distribution in brain interstitial fluid VLCFA : Very long-chain fatty acids V : max Maximal velocity V u : ,brain Unbound volume of distribution in the brain V : u, cell Unbound volume of distribution in the brain parenchymal cells References Group GBDNDC
Abstract Background: Arsenic (As), a class I carcinogen, affected 200 million people globally either through consumption of contaminated groundwater or food crops especially rice, leading to acute or chronic health issues including fatigue, respiratory diseases, liver fibrosis, and cancer
It has been reported that l-Cys can regulate immune system activity by promoting changes in levels of production of its effector molecules, as is the case of IL-17
This reaction appears to occur at neutral or alkaline pH
It is naturally produced by our liver and used in numerous body processes
