Opinion paperAnticeramide antibody and butyrylcholinesterase in peripheral neuropathies

- MB-L and DN showed significant increase in Ab-Cer.
- BChE levels significantly increased in MB-L, DN and HIV-PN.
- Concurrent levels of Ab-Cer and BChE varied in neuropathies.

Ceramide is a glycosphingolipid, a component of nerve and non neuronal cell membrane and plays a role in maintaining the integrity of neuronal tissue. Butyrylcholinesterase (BChE) is a multifunctional enzyme, its involvement in neurodegenerative diseases has been well established. Anticeramide antibody (Ab-Cer) and enzyme BChE have been implicated in peripheral neuropathies. The present study investigates whether there is an association between Ab-Cer and BChE activities and peripheral neuropathies. Patients included: human immunodeficiency virus associated peripheral neuropathy (HIV-PN, n = 39), paucibacillary leprosy (PB-L, n = 36), multibacillary leprosy (MB-L, n = 52), diabetic neuropathy (DN, n = 22), demyelinating sensory motor polyneuropathy (DSMN, n = 13) and chronic inflammatory demyelinating polyneuropathy (CIDP, n = 10). Plasma Ab-Cer was measured by indirect enzyme linked immune assay (ELISA) and BChE activity in plasma was measured by colorimetric method. Ab-Cer levels were significantly elevated in MB-L and DN as compared to healthy subjects (HS). BChE levels were significantly higher in MB-L and DN as well as in HIV and HIV-PN. There is no significant difference in either Ab-Cer or BChE levels in DSMN and CIDP. Elevated plasma Ab-Cer and BChE levels may be considered significant in the pathogenesis of neuropathies. The variation in concurrent involvement of both the molecules in the neuropathies of the study, suggest their unique involvement in neurodegenerative pathways.

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