RET and neuropathy: We evaluated the expression of glial marker Ionized Calcium-Binding Adapter Molecule 1 (IBA1) in DRGs of rats with neuropathies after the treatment with ARTN or RET agonists (experimental design and sample collection procedures, as well as the effects of compound on pain threshold and on neurons are described in details elsewhere (Sidorova et al., 2017; Viisanen et al., 2020) using immunohistochemistry method described in details in Jokinen et al. (2018).