Abbreviations 1MT: 1-methyl-tryptophan 3HAA: 3-hydroxyanthranilic acid 3HK: 3-hydroxykynurenine 5-HT: Serotonin 7nAChRs 7: nicotinic acetylcholine receptors AHR: Aryl hydrocarbon receptor AMPAR: -amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor BBB: Blood brain barrier BCG: Bacile Calmette-Gurin BDI-II: Beck Depression Inventory, 2nd edition BDNF: Brain-derived neurotrophic factor BSSI: Beck Scale for Suicidal Ideation CDRS-R: Childrens Depression Rating Scale-Revised CNS: Central nervous system ESBA: (S)-4-(ethylsulfonyl)benzoylalanine GBA: Gut-brain axis HAMD: Hamilton Depression Rating Scale HPA: Hypothalamic-pituitary-adrenal IDO: Indoleamine 2,3-dioxygenase KAT: Kynurenine aminotransferase KMO: Kynurenine 3-monooxygenase KP: Kynurenine pathway K-SADS-PL: Schedule for Affective Disorders and Schizophrenia for School-Age Children KYN: Kynurenine KYNA: Kynurenic acid LDH: Lactate dehydrogenase LPS: Lipopolysaccharide LSD: Lysergic acid diethylamide MDD: Major depressive disorder NMDAR: N-methyl-D-aspartate receptor NO: Nitric oxide PA: Picolinic acid QA: Quinolinic acid ROS: Reactive oxygen species SCFA: Short-chain fatty acids SSRI: Selective serotonin reuptake inhibitor TBI: Traumatic brain injury TDO : Tryptophan 2,3-dioxygenase TRP: Tryptophan UCMS: Unpredictable Chronic Mild Stress References Cipriani A, Furukawa TA, Salanti G, Chaimani A, Atkinson LZ, Ogawa Y, et al

This is one reason a serum might cause breakouts months after you bought it but not when it was new
It can promote the differentiation and maturation of immune cells, modulate cytokine production, and contribute to wound healing and tissue repair (van Harten et al., 2018)
Despite evidence that a physicians race and ethnicity can influence the race and ethnicity of clinical trial volunteers and minority patients have better relationships with minority healthcare providers, the incidence of participation in clinical research among minority physicians is well below that observed among white physicians