Large molecular size EDTA-resistant complexes containing S100A12, ERAC, in serum during inflammatory conditions.

The pro-inflammatory, leukocyte-derived S100A12 protein occurs as calcium-dependent oligomers in serum, while EDTA plasma from the majority of healthy individuals contains only monomers. Addition of 5 mM EDTA to serum leads to a rapid dissociation of the oligomers in most samples. However, using gel permeation chromatography, we have found that sera from some patients and seemingly healthy individuals contain molecular complexes in the 400-1000 kDa range reacting with anti-S100A12 even in the presence of EDTA; for these we introduce the name ERAC (EDTA Resistant S100A12 Complexes). Based upon monoclonal antibodies and the lateral flow principle, we have developed a quantitative rapid ERAC test giving results within 10 minutes. The highest prevalence of ERAC positivity was found in sera from patients with concomitant rheumatoid arthritis and coronary heart disease. The structure of ERAC is not yet known. Further studies are needed to analyse the mechanism behind the appearance of ERAC and the possible association with inflammatory-related diseases.

Sexual dysfunction after trocar-guided transvaginal mesh repair of pelvic organ prolapse.

OBJECTIVE: To estimate sexual dysfunction before and after trocar-guided transvaginal mesh surgery for pelvic organ prolapse. METHODS: Sexually active women participating in a prospective multicenter study were recruited at 26 centers. All participants underwent a standardized surgical procedure and were evaluated before (n=105) and 1 year after (n=84) surgery using the short form of the Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire (PISQ-12). Nonparametric statistics were used for comparisons. RESULTS: Mean age at surgery was 61.5 years (standard deviation [SD] 7.6), median parity was 2 (range, 1-6), and mean body mass index was 26.8 (SD 4.3) (body mass index is calculated as weight (kg)/[height m]). Anterior transvaginal mesh repair was performed in 46 patients (44%), posterior in 26 patients (25%), and combined anterior and posterior in 33 patients (31%). Overall sexual function scores worsened from 15.5 (SD 8.0) at baseline to 11.7 (SD 6.9) 1 year after surgery (P<.001). The trend toward deteriorating sexual function scores was similar for all three surgical procedures. There was an overall worsening of all symptoms in the behavioral-emotive and partner-related items, whereas improvements were observed in physical function. Overall rates and severity of dyspareunia in specific neither improved nor worsened. CONCLUSION: Sexual function scores deteriorate 1 year after trocar-guided transvaginal mesh surgery. The worsening was attributed primarily to a worsening in behavioral-emotive and partner-related items. Anatomical cure after surgery was not associated with improved PISQ scores. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov, www.clinicaltrials.gov, NCT00402844 LEVEL OF EVIDENCE: II.