Significance of Interleukin-8 in Cystitis and Schistosomal Chronic Cystitis

One of the important mediators of early inflammatory response in cystitis and an agent for attraction of neutrophils to the inflammation site is IL-8, in addition to its role in regulation angiogenesis. This study was carried out to assess the level of IL-8 biomarker in urine of cystitis patients (schistosomal chronic cystitis and non schistosomal cystitis).             Eighty eight Iraqi individual were divided to 50 cystitis patients and 38 healthy control, of whom urine sample and bladder biopsy were collected. Diagnosis of cystitis patients carried out by cystoscopy followed by histopathological examination and was classified to schistosomal chronic cystitis and non-schistosomal cystitis. Urine IL-8 level of studied groups was measured by ELISA test.             According to the result of ELISA technique, the mean urine concentration (pg/ml) of IL-8 increased significantly in cystitis patients 224.86 pg/ml than healthy controls 51.70 pg/ml. In regard to the age of cystitis patients urine level of this marker was significantly different (P<0.05), but there was not  any  significant increase in  IL-8 urine level according to sex, while IL-8 was with significant increase in Schistosomal chronic cystitis than non-Schistosomal cystitis. Lastly urine IL-8 showed specificity in diagnosis of cystitis 91.39% and more sensitivity 96.34%.             Result of this study showed significant increase in urinary IL-8 concentration in cystitis patients, with significant correlation between IL-8 level with Schistsoma infection and age.