2,3-Dihydro-5,7-dihydroxy-2-(4-hydroxyphenyl)-6-(3-methyl-2-buten-1-yl)-4H-1-benzopyran-4-one

(2R/S)-6-PNG (6-Prenylnaringenin; 10-30 mg/kg; i.p.; single dose; 15 min before Na2S) significantly reduced the Na₂S-induced nociceptive behavior and/or referred hyperalgesia in onscious mice with intracolonic (i.col.) administration of Na₂S, an H₂S donor^[1].
(2R/S)-6-PNG (30 mg/kg; i.p.) prevents the increased number of phosphorylated ERK-positive cells following i.col. Na2S in laminae I-II, V-VI and X to which the primary afferent neurons project, and the Na2S-induced increase in the phosphorylated ERK-positive cell number^[1].
(2R/S)-6-PNG (0.01-1 and 0.1-10 nmol/paw; intraplantar administration) restores the mechanical allodynia induced by partial sciatic nerve ligation (PSNL) and by i.p. administration of Oxaliplatin (OHP) a, respectively, in a dose-dependent manner^[1].
(2R/S)-6-PNG (20-30 mg/kg; i.p.) significantly reverses the PSNL-induced allodynia. (2R/S)-6-PNG (10-20 mg/kg; i.p.) significantly reverses the OHP-induced allodynia (5 mg/kg; i.p.; single dose)^[1].