Assessing UK specialists' knowledge of the diagnostic criteria for painful bladder syndrome/interstitial cystitis.

The aim of this study was to assess UK clinicians' knowledge of the National Institute of Diabetes, Digestive and Kidney diseases (NIDDK) criteria for painful bladder syndrome (PBS)/interstitial cystitis (IC). A questionnaire survey was distributed nationally to 100 gynaecologists and urologists. The main outcome measure was to determine whether respondents knew the NIDDK diagnostic criteria for PBS/IC.

The implementation of European Association of Urology guidelines in the management of acute epididymo-orchitis.

Introduction: Acute epididymo-orchitis is a common and increasing problem. This retrospective study reviewed whether the European Association of Urology guidelines for the management of acute epididymo-orchitis, which form the basis of this Trust's present inter-departmental guidelines, are being effectively implemented.

Patients And Methods: Case notes of 53 patients attending the emergency department with acute epididymo-orchitis over a 6-month period were reviewed retrospectively.

Differentiation potential of urothelium from patients with benign bladder dysfunction.

Objective: To develop a novel in vitro approach to test the hypothesis that failure of urothelial differentiation underlies the aetiopathology of interstitial cystitis (IC), where there is evidence of compromised urinary barrier function, as benign dysfunctional bladder disease encompass several poorly understood clinically defined conditions, including IC, idiopathic detrusor overactivity (IDO) and stress urinary incontinence (SUI).

Materials And Methods: Biopsy-derived urothelial cells from dysfunctional bladder biopsies were propagated as finite cell lines and examined for their capacity to differentiate in vitro, as assessed by the acquisition of a transitional cell morphology, a switch from a cytokeratin (CK)13(lo)/CK14(hi) to a CK13(hi)/CK14(lo) phenotype, expression of claudin 3, 4 and 5 proteins, and induction of uroplakin gene transcription.

Results: Two of 12 SUI cell lines showed early senescent changes in culture and were not characterized further; one of seven IC, one of five IDO and a further three SUI cell lines had some evidence of senescence at passage 3.

PPARgamma-regulated tight junction development during human urothelial cytodifferentiation.

Urothelial barrier function is maintained by apical membrane plaques and intercellular tight junctions (TJ). Little is known about the composition and regulation of TJ expression in human urothelium. In this study, we have characterised the expression of TJ components in situ and their regulation in an in vitro model of differentiating normal human urothelial (NHU) cells.

Urothelial differentiation in vesicoureteric reflux and other urological disorders of childhood: a comparative study.

Objective: The strong familial basis of vesicoureteric reflux (VUR) is well recognised, however little progress has been made in identifying the causative genes. In this study we have investigated whether human vesicoureteric reflux (VUR) is associated with the aberrant expression of urothelial differentiation-associated antigens in view of the VUR phenotype of the Uroplakin IIIa (UPIIIa) "knockout" mouse.

Methods: Samples of urothelium were collected from 13 children with primary VUR, four children with secondary VUR and from seven children with non-refluxing disorders of the urinary tract.