Gabaculine is an irreversible inhibitor of GABA transaminase (GABA-T; Ki: 2.9 μM). Gabaculine alters plastid development and differentially affects the abundance of plastid-encoded DPOR and nuclear-encoded GluTR.
4-methyl-2-Oxovalerate sodium salt 是亮氨酸经转氨酶催化生成的产物,能够促进胰岛素分泌。4-methyl-2-Oxovalerate sodium salt 可被氧化分解为乙酰辅酶 A 与乙酰乙酸,也可通过与谷氨酸发生转氨反应重新生成亮氨酸,同时产生 α- 酮戊二酸。
MBX-8025 is an agonist of peroxisome proliferator-activated receptor δ (PPARδ).1 It is greater than 750- and 2,500-fold selective for PPARδ over PPARα and PPARγ. MBX-8025 (10 mg/kg per day for eight weeks) reduces increases in fasting blood glucose and serum insulin levels, and decreases insulin resistance in Alms1 mutant (foz/foz) mice fed an atherogenic diet as a model of diet-induced obesity, type 2 diabetes, and non-alcoholic steatohepatitis (NASH).2 It also decreases serum alanine transaminase (ALT), as well as serum and hepatic cholesterol and triglyceride, levels and reduces markers of NASH in the same model.
|1. Bays, H.E., Schwartz, S., Littlejohn, T., 3rd, et al. MBX-8025, a novel peroxisome proliferator receptor-δ agonist: Lipid and other metabolic effects in dyslipidemic overweight patients treated with and without atorvastatin. J. Clin. Endocrinol. Metab. 96(9), 2889-2897 (2011).|2. Haczeyni, F., Wang, H., Barn, V., et al. The selective peroxisome proliferator-activated receptor-delta agonist seladelpar reverses nonalcoholic steatohepatitis pathology by abrogating lipotoxicity in diabetic obese mice. Hepatol. Commun. 1(7), 663-674 (2017).
ZLY032 is a dual agonist of free fatty acid receptor 1 (FFAR1/GPR40; EC50= 68 nM in a FLIPR assay) and peroxisome proliferator-activated receptor δ (PPARδ; EC50= 102 nM in a reporter assay).1It is selective for FFAR1 and PPARδ over PPARα and PPARγ (EC50s = >10 μM for both). ZLY032 (40 mg/kg, twice per day) reduces blood glucose levels in an oral glucose tolerance test and decreases plasma total cholesterol and triglyceride levels in theob/obmouse model of metabolic disease.2It reduces hepatic steatosis and plasma alanine transaminase (ALT) and aspartate aminotransferase (AST) levels in a mouse model of non-alcoholic steatohepatitis (NASH) induced by a methionine and choline-deficient diet at the same dose.
1.Li, Z., Chen, Y., Zhou, Z., et al.Discovery of first-in-class thiazole-based dual FFA1/PPARδ agonists as potential anti-diabetic agentsEur. J. Med. Chem.164352-365(2019) 2.Li, Z., Zhou, Z., Hu, L., et al.ZLY032, the first-in-class dual FFA1/PPARδ agonist, improves glucolipid metabolism and alleviates hepatic fibrosisPharmacol Res.159105035(2020)
Aspulvinone O is a fungal metabolite that has been found in P. variotti and has antioxidant and anticancer activities.1,2 It scavenges 2,2-diphenyl-1-picrylhydrazyl radicals in a cell-free assay (IC50 = 11.6 μM).1 Aspulvinone O inhibits aspartate transaminase 1 (GOT1; Kd = 3.32 μM) and is cytotoxic to PANC-1, AsPC-1, and SW1990 pancreatic cancer cells (IC50s = 20.54-26.8 μM).2 It reduces the oxygen consumption rate (OCR) and induces apoptosis in SW1990 cells. Aspulvinone O (2.5 and 5 mg/kg) reduces tumor growth in an SW1990 mouse xenograft model.
|1. Zhang, P., Li, X.-M., Wang, J.-N., et al. New butenolide derivatives from the marine-derived fungus Paecilomyces variotii with DPPH radical scavenging activity. Phytochem. Lett. 11, 85-88 (2015).|2. Sun, W., Luan, S., Qi, C., et al. Aspulvinone O, a natural inhibitor of GOT1 suppresses pancreatic ductal adenocarcinoma cells growth by interfering glutamine metabolism. Cell Commun. Signal. 17(1), 111 (2019).
D-DOPA is an enantiomer of the dopamine precursor L-DOPA . It can be converted to L-DOPAviasequential oxidation and transamination, which are mediated by D-amino acid oxidase (DAAO) and DOPA transaminase, respectively, in rat kidney homogenates.1It reduces the number of dopaminergic neurons in primary rat embryonic mesencephalic cultures in a concentration-dependent manner.2Intraventricular administration of D-DOPA (200 μg/animal) increases striatal dopamine levels in rats.3D-DOPA (20 mg/kg, i.p.) induces contralateral turns in a rat model of Parkinson's disease induced by 6-OHDA .4
1.Wu, M., Zhou, X.-J., Konno, R., et al.D-dopa is unidirectionally converted to L-dopa by D-amino acid oxidase, followed by dopa transaminaseClin. Exp. Pharmacol. Physiol.33(11)1042-1046(2006) 2.Ling, Z.-D., Pieri, S.C., and Carvey, P.M.Comparison of the neurotoxicity of dihydroxyphenylalanine stereoisomers in cultured dopamine neuronsClin. Neuropharmacol.19(4)360-365(1996) 3.Karoum, F., Freed, W.J., Chuang, L.-W., et al.D-dopa and L-dopa similarly elevate brain dopamine and produce turning behavior in ratsBrain Res.440(1)190-194(1988) 4.Moses, J., Siddiqui, A., and Silverman, P.B.Sodium benzoate differentially blocks circling induced by D-and L-dopa in the hemi-parkinsonian ratNeurosci. Lett.218(3)145-148(1996)
γ-Acetylenic GABA (4-Aminohex-5-ynoic acid) is a potent, irreversible inhibitor of GABA-transaminase. This compound effectively raises the concentration of γ-Aminobutyric acid (GABA) in the brain of rats.