Complex sentence: Additionally, several potential biomarkers of LPR have been investigated which include inflammatory cytokines, carbonic anyhydrase, E-cadherin and mucins, however their direct implications in LPR are still being established.
Split into simpler sentences: Additionally, several potential biomarkers of LPR have been investigated. These include inflammatory cytokines, carbonic anyhydrase, E-cadherin and mucins, however their direct implications in LPR are still being established.