Schistosoma haematobium infection and asymptomatic bacteriuria in young South African females

Kildemoes AO, Kjetland EF, Zulu SG, Taylor M, Vennervald BJ Journal title: Acta tropica Acta Trop. 2015 Apr;144:19-23 PMID: 25623258 Article on PubMed: http://www.ncbi.nlm.nih.gov/pubmed/25623258 Abstract Schistosoma haematobium eggs can induce lesions in the urinary and genital tract epithelia, as eggs pass through or get trapped in the tissue. Local inflammatory reactions induced by S. haematobium eggs might affect the ability of bacteria to establish mucosal super-infection foci. S. haematobium infection and asymptomatic bacteriuria can both portray haematuria, proteinuria and leukocyturia. This shared set of proxy diagnostic markers could fuel routine misdiagnosis in S. haematobium endemic areas. Furthermore, S. haematobium infected individuals might be at a higher risk of contracting bacterial urinary tract infections, which could manifest either as symptomatic or asymptomatic bacteriuria. The aim of the current study was to explore whether schistosomal lesions are susceptible to super-infection by bacteria measured as asymptomatic bacteriuria. S. haematobium infection was determined by microscopy of urine samples. Furthermore, urine samples were tested with dipslides for asymptomatic bacteriuria and with dipsticks for haematuria, proteinuria and leukocytes. We found no association between asymptomatic bacteriuria and S. haematobium infection in a sample of 1040 female primary and high school students from a schistosomiasis endemic area in KwaZulu-Natal, South Africa. Furthermore, it was demonstrated that asymptomatic bacteriuria is not a bias for use of micro-haematuria as a proxy diagnostic measure for S. haematobium infection in this population....

The colposcopic atlas of schistosomiasis in the lower female genital tract based on studies in Malawi,Zimbabwe, Madagascar and South Africa

Norseth HM, Ndhlovu PD, Kleppa E, Randrianasolo BS, Jourdan PM, Roald B, Holmen SD, Gundersen SG, Bagratee J, Onsrud M, Kjetland EF Journal title: PLoS neglected tropical diseases PLoS Negl Trop Dis 2014 Nov;8(11):e3229 PMID: 25412334 Article on PubMed: http://www.ncbi.nlm.nih.gov/pubmed/25412334 Abstract BACKGROUND: Schistosoma (S.) haematobium is a neglected tropical disease which may affect any part of the genital tract in women. Female genital schistosomiasis (FGS) may cause abnormal vaginal discharge, contact bleeding, genital tumours, ectopic pregnancies and increased susceptibility to HIV. Symptoms may mimic those typical of sexually transmitted infections (STIs) and women with genital schistosomiasis may be incorrectly diagnosed. An expert consensus meeting suggested that the following findings by visual inspection should serve as proxy indicators for the diagnosis of schistosomiasis of the lower genital tract in women from S. haematobium endemic areas: sandy patches appearing as (1) single or clustered grains or (2) sandy patches appearing as homogenous, yellow areas, or (3) rubbery papules. In this atlas we aim to provide an overview of the genital mucosal manifestations of schistosomiasis in women. METHODOLOGY/PRINCIPAL FINDINGS: Photocolposcopic images were captured from women, between 1994 and 2012 in four different study sites endemic for S. haematobium in Malawi, Zimbabwe, South Africa and Madagascar. Images and specimens were sampled from sexually active women between 15 and 49 years of age. Colposcopic images of other diseases are included for differential diagnostic purposes. SIGNIFICANCE: This is the first atlas to present the clinical manifestations of schistosomiasis in the lower female genital tract. It will be freely available for online use, downloadable as a presentation and for print. It could be used for training...

Cervical ectopy: associations with sexually transmitted infections and HIV. A cross-sectional study of high school students in rural South Africa

Kleppa E, Holmen SD, Lillebø K, Kjetland EF, Gundersen SG, Taylor M, Moodley P, Onsrud M Journal title: Sexually transmitted infections Sex Transm Infect 2015 Mar;91(2):124-9 PMID: 25281761 Article on PubMed: http://www.ncbi.nlm.nih.gov/pubmed/25281761 Abstract OBJECTIVES: It has been hypothesised that ectopy may be associated with increased susceptibility to sexually transmitted infections (STIs). In this cross-sectional study, we wanted to explore the association between STIs (including HIV) and cervical ectopy. METHODS: We included 700 sexually active young women attending randomly selected high schools in a rural district in KwaZulu-Natal, South Africa. The district is endemic of HIV and has a high prevalence of STIs. We did computer-assisted measurements of the ectocervical area covered by columnar epithelium (ectopy) in colposcopic images and STI analyses on cervicovaginal lavage and serum samples. All participating women answered a questionnaire about sexual behaviour and use of contraceptives. RESULTS: The mean age was 19.1 years. Ectopy was found in 27.2%, HIV in 27.8%, chlamydia in 25.3% and gonorrhoea in 15.6%. We found that age, parity, chlamydia and gonorrhoea, years since menarche, years since sexual debut and number of sexual partners were associated with ectopy. In multivariate analysis with chlamydia infection as the dependent variable, women with ectopy had increased odds of having chlamydia infection (adjusted OR 1.78, p=0.033). In women under 19 years of age, we found twofold higher odds of being HIV-positive for those with ectopy (OR 2.19, p=0.014). CONCLUSIONS: In conclusion, cervical ectopy is associated with Chlamydia trachomatis infection and HIV in the youngest women....

Classification of the lesions observed in female genital schistosomiasis

Kjetland EF, Norseth HM, Taylor M, Lillebø K, Kleppa E, Holmen SD, Andebirhan A, Yohannes TH, Gundersen SG, Vennervald BJ, Bagratee J, Onsrud M, Leutscher PD Journal title: International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics Int J Gynaecol Obstet 2014 Dec;127(3):227-8 PMID: 25179171 Article on PubMed: http://www.ncbi.nlm.nih.gov/pubmed/25179171 Abstract...

Eosinophil granule proteins ECP and EPX as markers for a potential early-stage inflammatory lesion in female genital schistosomiasis (FGS)

Ramarokoto CE, Kildemoes AO, Randrianasolo BS, Ravoniarimbinina P, Ravaoalimalala VE, Leutscher P, Kjetland EF, Vennervald BJ Journal title: PLoS neglected tropical diseases PLoS Negl Trop Dis 2014 Jul;8(7):e2974 PMID: 25033206 Article on PubMed: http://www.ncbi.nlm.nih.gov/pubmed/25033206 Abstract BACKGROUND: Genital granulomas induced by Schistosoma haematobium eggs can manifest as different lesion types visible by colposcopy; rubbery papules (RP), homogenous sandy patches (HSP) and grainy sandy patches (GSP). Pronounced tissue eosinophilia is a candidate marker for active S. haematobium pathology, as viable schistosome egg granulomas often are eosinophil rich. Here it was investigated whether eosinophil granule proteins ECP (eosinophil cationic protein) and EPX (eosinophil protein-X) in urine and genital lavage can be used as markers for active FGS lesions. METHODS: Uro-genital samples from 118 Malagasy women were analysed for ECP and EPX by standard sandwich avidin/biotin amplified ELISA. PRINCIPAL FINDINGS: The women with RP lesions had significantly higher levels of ECP and EPX in both lavage and urine. Furthermore, women with RP lesions were significantly younger than those with GSP. This could indicate that RP lesions might be more recently established and thus represent an earlier inflammatory lesion stage. CONCLUSION: ECP in genital lavage might be a future tool aiding the identification of FGS pathology at a stage where reversibility remains a possibility following praziquantel treatment....