The rotator cuff was harvested from the sham and RCT groups on various days for reverse transcription-polymerase chain reaction analysis of Tnfa, Ngf, Il1b, and Cox2 expression.
For the in vitro study, tenocytes were enzymatically isolated and cultured from patients with rotator cuff tear and treated with or without interleukin 1β (IL-1β) and PRP.
To assess the effects of PRP on tenocytes from degenerative rotator cuff tears with the concomitant use of a corticosteroid in interleukin 1β (IL-1β)-induced tendinopathic conditions.