Detection of human papillomavirus DNA by the hybrid capture assay.

نویسندگان

  • Maria Odete O Carvalho
  • Ricardo W Almeida
  • Fátima M S Leite
  • Ilza B Fellows
  • Mariza H Teixeira
  • Ledy H S Oliveira
  • Silvia M B Cavalcanti
چکیده

Human Papillomavirus (HPV) infection is the main cause of cervical cancers and cervical intraepithelial neoplasias (CIN) worldwide. Consequently, it would be useful to evaluate HPV testing to screen for cervical cancer. Recently developed, the second-generation Hybrid Capture (HCA II) test is a non-radioactive, relatively rapid, liquid hybridization assay designed to detect 18 HPV types, divided into high and low-risk groups. We evaluated 1055 women for HPV infection with the HCA II test. Five hundred and ten (48.3%) of these women had HPV infection; 60 (11.8%) had low cancer-risk HPV DNA; 269 (52.7%) had high-risk HPV types and 181 (35.5%) had both groups. Hence, 450 women (88.2%) in this HPV-infected group had at least one high risk HPV type, and were therefore considered to be at high risk for cancer. Among the group with Papanicolaou (Pap) test results, the overall prevalence of HPV DNA was 58.4%. Significant differences in HPV infection of the cervix were detected between Pap I (normal smears) and Pap IV (carcinomas) (p<0.0001). Values of HPV viral load obtained for Pap I and SILs were significantly different, with an upward trend (p<0.0001), suggesting a positive correlation between high viral load values and risk of SIL. Because of the high costs of the HCA II test, its use for routine cervical mass screening cannot be recommended in poor countries. Nevertheless, it is a useful tool when combined with cytology, diagnosing high-risk infections in apparently normal tissues. Use of this technique could help reduce the risk of cancer.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Detection of human papillomavirus in cervical cell specimens by hybrid capture and PCR with different primers.

The purpose of this study was to compare hybrid capture assay with PCRs using different primers for the L1, E6-E7 regions for the detection of human papillomavirus (HPV) genome. One hundred twenty-five cervical smears with normal (n=42) and abnormal (n=83) cytology were investigated. Those at high-risk for HPV were studied by hybridization antibody capture assay and PCR with the pU-1M/pU-2R pri...

متن کامل

Comparison of the AdvanSure Human Papillomavirus Screening Real-Time PCR, the Abbott RealTime High Risk Human Papillomavirus Test, and the Hybrid Capture Human Papillomavirus DNA Test for the Detection of Human Papillomavirus

BACKGROUND We evaluated the performance of various commercial assays for the molecular detection of human papillomavirus (HPV); the recently developed AdvanSure HPV Screening real-time PCR assay (AdvanSure PCR) and the Abbott RealTime High Risk HPV PCR assay (Abbott PCR) were compared with the Hybrid Capture 2 HPV DNA Test (HC2). METHODS All 3 tests were performed on 177 samples, and any samp...

متن کامل

Hybrid capture II, a new sensitive test for human papillomavirus detection. Comparison with hybrid capture I and PCR results in cervical lesions.

AIM To test a new assay for the detection of human papillomavirus (HPV) DNA, hybrid capture II (HC II), compared with the previous commercialized hybrid capture I (HC I) and polymerase chain reaction (PCR) results on cervical scrapes from fresh cone excision biopsy samples. METHODS The three methods were used on cervical scrapes from 42 fresh cone excision biopsy samples. There were nine meta...

متن کامل

Detection of Human Papillomavirus DNA by PCR in Esophageal Squamous Cell Carcinoma from Turkmen Sahra, North-East of Iran

Human papillomavirus (HPV) DNA has been identified in esophageal carcinomas. However, the incidence of HPV varies significantly in different geographical locations. In this study, neoplasms from Turkmen Sahra, a region in Golestan province in northeast part of Iran, with a high incidence of squamous cell carcinoma were analyzed for the presence of HPV DNA. Turkmen Sahra is located in the cancer...

متن کامل

No Evidence for Human Papillomavirus in Patients with HIV in Iran

Background: Human Papillomaviruses (HPVs) have anestablished role in the development of cervical cancer. However, the presence of underlying conditions such as HIV/AIDS is necessary for this to occur. This studyaimed to evaluate the prevalence of HPV DNA in plasma samples from HIV-positive patients in Tehran, Iran. Methods: Plasma specimens from 95 patients diagnosed with HIV infection from Te...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases

دوره 7 2  شماره 

صفحات  -

تاریخ انتشار 2003