D-amino acids as a biomarker in schizophrenia

K Taniguchi, H Sawamura, Y Ikeda, A Tsuji, Y Kitagishi… - Diseases, 2022 - mdpi.com
D-amino acids may play key roles for specific physiological functions in different organs
including the brain. Importantly, D-amino acids have been detected in several neurological …

Direct Fluorescence Evaluation of d-Amino Acid Oxidase Activity Using a Synthetic d-Kynurenine Derivative

T Sakamoto, K Odera, M Onozato… - Analytical …, 2022 - ACS Publications
d-Amino acid oxidase (DAO) has been suggested to be associated with the central nervous
system diseases, such as schizophrenia. We newly synthesized a nonfluorescent 5 …

Precolumn derivatization LC/MS method for observation of efficient hydrogen sulfide supply to the kidney via d-cysteine degradation pathway

E Sugiyama, T Higashi, M Nakamura, H Mizuno… - … of Pharmaceutical and …, 2023 - Elsevier
Abstract d-Cysteine (d-Cys) is metabolized to hydrogen sulfide (H 2 S) by d-amino acid
oxidase (DAO)/3-mercaptopyruvate sulfurtransferase pathway. The pathway is required for …

Plasma d-amino acids are associated with markers of immune activation and organ dysfunction in people with HIV

SH Yap, CS Lee, A Furusho, C Ishii, S Shaharudin… - AIDs, 2022 - journals.lww.com
Background: d-Amino acids (d-AAs) have been associated with age-associated conditions
in the general population but their relevance in people with HIV (PWH), who experience …

N-methyl-d-aspartate receptor hyperfunction contributes to d-serine-mediated renal insufficiency

YS Tseng, CH Liao, WB Wu… - American Journal of …, 2021 - journals.physiology.org
Glutamate N-methyl-d-aspartate receptor (NMDAR) hyperfunction is known to contribute to
acute renal failure due to ischemia-reperfusion and endotoxemia. d-Serine is a coagonist for …

Antimicrobial d-amino acid oxidase-derived peptides specify gut microbiota

G Murtas, S Sacchi, G Tedeschi, E Maffioli… - Cellular and Molecular …, 2021 - Springer
The flavoenzyme d-amino acid oxidase (DAAO) is deputed to the degradation of d-
enantiomers of amino acids. DAAO plays various relevant physiological roles in different …

Sp4 controls constitutive expression of neuronal serine racemase and NF-E2-related factor-2 mediates its induction by valproic acid

H Zhang, J Lu, S Wu - Biochimica et Biophysica Acta (BBA)-Gene …, 2020 - Elsevier
Serine racemase (SR) synthesizes l-type serine to its enantimor, d-serine which participates
in physiological processes and in pathological conditions. In the central nervous system, SR …

NMDA receptor hypofunction in the aging-associated malfunction of peripheral tissue

A Rivera-Villaseñor, F Higinio-Rodríguez… - Frontiers in …, 2021 - frontiersin.org
Glutamatergic transmission through NMDA receptors (NMDARs) is important for the function
of peripheral tissues. In the bone, NMDARs and its co-agonist, D-serine participate in all the …

Protective effect of D‐Cys on renal function in mice with chronic kidney disease

X Xiang, C Tao, J Ren - Food Frontiers, 2024 - Wiley Online Library
MTT assay The chirality of amino acids affects their physiological functions. Recent studies
uncovered potential physiological effects of D‐amino acids (D‐AAs) in nephropathy. Here …

P219L substitution in human D-amino acid oxidase impacts the ligand binding and catalytic efficiency

W Rachadech, Y Kato, RM Abou El-Magd… - The journal of …, 2020 - academic.oup.com
Human D-amino acid oxidase (DAO) is a flavoenzyme that is implicated in
neurodegenerative diseases. We investigated the impact of replacement of proline with …