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1.
J M Walboomers A M de Roda Husman P J Snijders H V Stel E K Risse T J Helmerhorst F J Voorhorst C J Meijer 《Journal of clinical pathology》1995,48(8):728-732
AIM--To assess the value of detecting human papillomavirus (HPV) DNA in false negative archival cervical smears in population based screening programmes for cervical cancer. METHODS--Cytomorphologically classified false negative archival Pap smears (n = 27) taken from 18 women up to six years before cervical cancer was diagnosed were blindly mixed with 89 smears from hospital patients with a variety of gynaecological complaints and tested for HPV by the polymerase chain reaction (PCR). Corresponding cervical cancer biopsy specimens were also available for HPV analysis. Neither the examining cytopathologist nor the molecular biologist was aware of the study design. RESULTS--HPV DNA was detected in the smears of 16 patients with cervical cancer missed previously by cytology. HPV 16 and 18 were found predominantly in those smears taken up to six years before the diagnosis of cervical cancer. The smears of the two remaining patients were reclassified as inadequate for cytology or contained no suitable DNA for PCR. In 15 patients the same HPV type could be found in the smears and the cervical cancer biopsy specimens. CONCLUSIONS--The results indicate that high risk HPV types can be detected in archival smears classified as false negative on cytology and that cytological screening errors may be reduced if combined with PCR testing for HPV. 相似文献
2.
Reliable high risk HPV DNA testing by polymerase chain reaction: an intermethod and intramethod comparison 总被引:7,自引:0,他引:7
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Jacobs MV Snijders PJ Voorhorst FJ Dillner J Forslund O Johansson B von Knebel Doeberitz M Meijer CJ Meyer T Nindl I Pfister H Stockfleth E Strand A Wadell G Walboomers JM 《Journal of clinical pathology》1999,52(7):498-503
BACKGROUND: The development of a reproducible, sensitive, and standardised human papillomavirus (HPV) polymerase chain reaction (PCR) test is required to implement HPV testing in cervical cancer screening programmes and for triaging women with mild to moderate dysplasia. AIMS: To determine the intermethod agreement between different GP5+/6+ and MY09/11 PCR based protocols for the detection and typing of high risk (HR) HPV DNA in cervical smears and to assess the intramethod reproducibility of the GP5+/6+ PCR enzyme immunoassay (EIA) for HR-HPV detection. METHODS: For the intermethod comparison, crude aliquots of 20 well characterised cervical smears comprising five HPV negative samples, and six and nine samples containing single and multiple HPV infections, respectively, were coded and sent from reference laboratory (A) to three other laboratories. One of these (laboratory B) used the GP5+/6+ PCR-EIA and was provided with standard protocols. Another laboratory (C) used GP5+/6+ PCR combined with sequence analysis and type specific PCR, whereas two laboratories (D and E) used MY09/11 PCR followed by restriction fragment length polymorphism (RFLP) analysis for the detection and typing of HR-HPV. The intramethod agreement of GP5+/6+ PCR-EIA was analysed in a subsequent study with four other laboratories (F to I) on crude aliquots of 50 well characterised cervical smears, consisting of 32 HR-HPV positive and 18 HPV negative samples. Standardised protocols, primers, and probes were also provided by the reference laboratory for HR-HPV detection. RESULTS: In the intermethod comparison, pairwise agreement of the different laboratories with reference laboratory A for the detection of HR-HPV varied between 75% and 100% (kappa values: 0.5 to 1). Typing data revealed a broader range in pairwise agreement rates between 32% and 100%. The highest agreement was found between laboratories A and B using standardised protocols and validated reagents. In the intramethod evaluation, pairwise comparison of the laboratories F to I with reference laboratory A revealed excellent agreement rates from 92% to 100% (kappa values: 0.88 to 1.0) with an overall sensitivity of 97.5% (195/200) and specificity of 99.5% (199/200). CONCLUSIONS: The detection of HR-HPV as a group is highly reproducible with GP5+/6+ PCR-EIA provided that standardised protocols and validated reagents are used. 相似文献
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We compared patient outcome after total knee arthroplasties with two types of low-contact-stress (LCS) cementless implants: a meniscal-bearing implant that retained the posterior cruciate ligament (n = 147), and a rotating-platform implant requiring sacrifice of this ligament (n = 44). The minimum follow-up was 5 years (mean, 68.5 months). Pain was occasional or nonexistent at follow-up in 94.6% of patients with meniscal-bearing implants and 93.2% of patients with rotating-platform implants. The mean total range of motion was 120 degrees for patients with meniscal-bearing implants and 108 degrees for those with rotating-platform implants (P < 0.001). Mean total scores on the New Jersey Orthopaedic Hospital Knee Scale were 93.2 for meniscal bearings and 87.6 for rotating platforms (P < .001). Patellar complications, including two fractures, were seen in 1.0% of cases. Five meniscal-bearing and no rotating-platform implants have been revised. The 7-year overall survival rate was 97.5% for meniscal bearings and 100% for rotating platforms. 相似文献
4.
Meijer CJ Rozendaal L Voorhorst FJ Verheijen R Helmerhorst TJ Walboomers JM 《Nederlands tijdschrift voor geneeskunde》2000,144(35):1675-1679
More than 99% of all cervical cancers contain high risk HPV. Only a persistent infection with high risk HPV of the cervical epithelium results in cervical cancer. Because the risk of cervical cancer is identical for all different HPV types, tests which detect all 14 high risk HPV types at one time are sufficient for clinical management. Testing for hr-HPV is mandatory for women with mild dyskaryosis and for the follow-up of women treated for CIN lesions. Based on efficiency to detect CIN3 and cervical cancer and preliminary cost benefit analysis, the combination of a high risk HPV test in conjunction with a cervical smear appears to be the best way of cervical cancer screening. A definite point of view on using high risk HPV testing for primary screening for cervical cancer will be obtained after the completion of a randomized trial of 44,000 women, in which the efficiency to detect CIN3 and cervical cancer by high risk HPV testing in conjunction with a cytomorphological smear is compared with screening by classical cytology. 相似文献
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Human papillomavirus 16 load in normal and abnormal cervical scrapes: an indicator of CIN II/III and viral clearance 总被引:12,自引:0,他引:12
van Duin M Snijders PJ Schrijnemakers HF Voorhorst FJ Rozendaal L Nobbenhuis MA van den Brule AJ Verheijen RH Helmerhorst TJ Meijer CJ 《International journal of cancer. Journal international du cancer》2002,98(4):590-595
The relation between human papillomavirus type 16 (HPV 16) viral load in cervical scrapes and development of high-grade cervical intraepithelial neoplasia (CIN II or III) was studied in a nested case-control study of women with normal cytology (group A) and in a cohort of women with abnormal cytology (group B). HPV 16 DNA load was determined using a quantitative real-time PCR assay. In group A, case women (women with CIN II/III, n = 12) had a significantly higher viral load than control women (women with CIN < or = I, n = 47). This resulted in an increased relative risk of women with the 50% highest viral load for development of CIN II/III (OR 7.7; CI 1.6-33). In group B, women with CIN II/III (n = 38) had a significantly higher viral load than women with CIN < or = I (n = 25). Women with the 50% highest viral load had an increased relative risk of CIN II/III (OR 3.2; CI 1.1-9.3) and a decreased chance of both viral clearance and cytologic regression. Our data suggest that in women with normal cytology an increased HPV 16 load confers an increased risk of developing a CIN lesion. A sustained high viral load is subsequently informative for progression to a high-grade CIN lesion. 相似文献
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