ISSN:
1525-1438
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Medicine
Notes:
Exfoliated cervical cells from 321 Japanese women were examined for human papillomavirus (HPV) DNA types 6, 11, 16, 18, 31, 33 and 35 using polymerase chain reaction (PCR) and dot-blot hybridization methods. HPV DNA was present in 9.3% of patients with normal cervixes, 72.7% of patients with cervical intraepithelial neoplasia (CIN) and 77.8% of patients with invasive carcinoma. Younger patients (〈inlineGraphic alt="leqslant R: less-than-or-eq, slant" extraInfo="nonStandardEntity" href="urn:x-wiley:1048891X:IJG05010045:les" location="les.gif"/〉29 years) with normal cervixes had a 18.5% incidence of HPV DNA, whilst similar older patients (〈inlineGraphic alt="geqslant R: gt-or-equal, slanted" extraInfo="nonStandardEntity" href="urn:x-wiley:1048891X:IJG05010045:ges" location="ges.gif"/〉50 years) had a 1.9% incidence, a significant difference (χ2= 6.478, P 〈 0.01). In the CIN I and II groups, an incidence of 11.1% of types 16 and 18 was found, while in the CIN III or invasive carcinoma group the incidence was 58.1%, again a significant difference (χ2 = 12.075, P 〈 0.01). Furthermore, persistence or progression of CIN showed a significant correlation with infections by types 16 and 33 (χ2= 4.904, P 〈 0.01). However, no significantly different incidence of HPV infection was found between the CIN and the invasive carcinoma groups. It is suggested that (a) younger patients with normal cervixes have a higher incidence of HPV infection than do older patients; (b) HPV types 16, 18 and 33 are important etiologic agents of CIN III and invasive carcinoma, as well as in the persistence and progression of CIN; (c) progression of CIN to invasive carcinoma may depend on factors other than HPV infection in the cervix.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1046/j.1525-1438.1995.05010045.x
Permalink
