Abbreviations 1 H NMR: Proton nuclear magnetic resonance 3-PBLG: 3-Armed poly(-benzyl-l-glutamic acid) 3-PLG: 3-Armed poly(l-glutamic acid) 3-PLG-A-GSH: 3-Armed poly(l-glutamic acid) coupled with alanine and glutathione 3-PLG-dopa: 3-Armed poly(l-glutamic acid) coupled with dopamine 3-PLG-dopa-A-GSH: 3-Armed poly(l-glutamic acid) coupled with dopamine and alanine and glutathione targeting ligands 3-PLG-ibu: 3-Armed poly(l-glutamic acid) coupled with ibuprofen 3-PLG-ibu-A-GSH: 3-Armed poly(l-glutamic acid) coupled with ibuprofen and alanine and glutathione targeting ligands A-GSH: Alanine and glutathione targeting ligands AD: Alzheimer's disease ASCT: Neutral amino acid transporter BBB: Bloodbrain barrier BLG NCA: L-glutamic acid -benzyl ester N -carboxyanhydride BSA: Bovine serum albumin cARLA: 8-(4-Chlorophenylthio)adenosine 3,5-cyclic monophosphate sodium salt + Ro-20-1724 + LiCl + A83-01 CD: -Cyclodextrin CK: Cytokines CNS: Central nervous system CytoD: Cytochalasin D D 2 O: Deuterium oxide DCM: Dichloromethane DIW: Deionized water DMEM: Dulbeccos modified Eagle medium DW: Distilled water EBA: Evans blue-albumin complex EDC/NHS: N -Ethyl- N -(3-(dimethylamino)propyl)carbodiimide/ N -hydroxysuccinimide EG 2 -diamine: 2,2-(Ethylenedioxy)bis(ethylamine) FBS: Fetal bovine serum GLUT-1: Glucose transporter type-1 hEC: Human stem cell-derived endothelial cells IL1-: Interleukin-1 LAT-1: L-type amino acid transporter-1 LRPs: Low density lipoprotein receptor-related proteins NA: Neuraminidase NSAIDs: Non-steroidal anti-inflammatory drugs P app : Apparent permeability coefficient PBS: Phosphate buffered saline PD: Parkinsons disease PDI: Polydispersity index PC: Pericytes PLGA: Poly(lactic- co -glycolic acid) R6G: N -(2-Aminoethyl) rhodamine 6G-amide bis(trifluoroacetate) SF: Sodium fluorescein SLC: Solute carrier SNAT: Small neutral amino acid transporters THF: Tetrahydrofuran TMA-DPH: 1-(4-Trimethylammoniumphenyl)-6-phenyl-1,3,5-hexatriene TMSI: Trimethylsilyl iodide TNF-: Tumor necrosis factor- References Abbott NJ, Patabendige AA, Dolman DE, Yusof SR, Begley DJ

Whilst GLP-1 receptors are abundant in the pancreas and gastrointestinal tract, they are also present in various brain regions, including areas involved in mood regulation and emotional processing
Stability depends on the specific formulation, container, and storage conditions
triglycerides, 0.09 mmol/l) [12]
Understanding how to use tretinoin is the first step toward achieving these results
FOXO4-DRI is a senolytic peptide that has shown potential in treating knee joint issues by targeting and removing senescent cells