TRPA1 and TRPM8 Receptors May Promote Local Vasodilation that Aggravates Oxaliplatin-Induced Peripheral Neuropathy Amenable to 17β-Estradiol Treatment.

Oxaliplatin is a widely used chemotherapeutic agent that induces both acute and chronic peripheral neuropathy. Based on previous research indicating that estrogen replacement may attenuate some forms of pain in ovariectomized animals, we examined the effects of 17β-estradiol in OXAIPN. We discovered that local cold exposure induces an abnormal vascular response in both acute and chronic models of OXAIPN (oxaliplatin-induced peripheral neuropathy) that may be used as an easy and non-invasive method to predict which patients may be susceptible to the development of severe, chronic OXAIPN.

Synergistic Effect of Ferulic Acid and Z-Ligustilide, Major Components of A. sinensis, on Regulating Cold-Sensing Protein TRPM8 and TPRA1 In Vitro.

Angelica sinensis has been used to attenuate cold-induced cutaneous vasospasm syndrome, such as Raynaud's disease and frostbite, in China for many years. Ferulic acid (PubChem CID: 445858) and Z-ligustilide (PubChem CID: 529865), two major components extracted from Angelica sinensis, had been reported to inhibit vasoconstriction induced by vasoconstrictors. In this study, the pharmacological interaction in regulating cold-induced vascular smooth muscle cell contraction via cold-sensing protein TRPM8 and TRPA1 was analyzed between ferulic acid and Z-ligustilide.

Binding of the environmental pollutant naphthol to bovine serum albumin.

The interactions between naphthol and bovine serum albumin (BSA) were investigated by spectroscopy. Our results prove the formation of complex between naphthol and BSA. Hydrophobic interaction dominates in the association reaction.