Publications by authors named "Haripriya Vedantham"

Doppler ultrasound of fetal vessels plays an important role in diagnosing fetal growth restriction (FGR). It also aids in early detection of fetal compromise and clinical decision making. To determine the efficacy of the pulsatility index (PI) of the fetal umbilical artery (UA) and middle cerebral artery (MCA) in the third trimester of pregnancy for predicting adverse perinatal outcomes in the growth restricted fetuses.

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Cervical cancer is caused by infection with high risk human papillomavirus (HR-HPV). Inducible nitric oxide synthase (iNOS), a soluble factor involved in chronic inflammation, may modulate cervical cancer risk among HPV infected women. The aim of the study was to measure and correlate plasma nitrite/nitrate levels with tissue specific expression of iNOS mRNA among women with different grades of cervical lesions and cervical cancer.

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We found a large number of false-positive readings by visual inspection with acetic acid (VIA) in a study of cervical cancer screening strategies (VIA, human papillomavirus HPV DNA testing, and Pap cytology) in a periurban community in Andhra Pradesh, India. We evaluated whether these false-positive readings might be occurring as a result of infections with Epstein-Barr virus (EBV) or cytomegalovirus (CMV), prevalent latent herpesviruses known to be shed from the female genital tract. While we found that there was no association between VIA results and the presence of EBV or CMV in the cervix, we did find a high prevalence of both viruses: 20% for EBV and 26% for CMV.

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Background: Studies conducted in the USA have demonstrated that micronutrients such as folate and vitamin B12 play a significant role in modifying the natural history of high-risk human papillomaviruses (HR-HPVs), the causative agent for developing invasive cervical cancer (CC) and its precursor lesions.

Objective: The purpose of the current study was to investigate whether these micronutrients have similar effects on HR-HPV infections in Indian women.

Methods: The associations between serum concentrations of folate and vitamin B12 and HR-HPV infections were evaluated in 724 women who participated in a CC screening study in the southern state of Andhra Pradesh, India.

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Article Synopsis
  • VIA (Visual Inspection with Acetic Acid) is commonly used for cervical cancer screening in low-resource areas due to its simplicity, but a study in Andhra Pradesh, India, found its sensitivity for detecting significant cervical lesions (CIN2+) to be only 26.3%, much lower than established benchmarks of 60-90%.
  • In the study, only 5 out of 19 women with CIN2+ tested positive via VIA, indicating a very low positive predictive value of 3.1%.
  • Factors influencing VIA positivity included older age, positive Pap tests, visible cervical inflammation, and variability among different examiners, highlighting that VIA's subjective nature limits its reliability as a primary screening tool in these settings.
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Objectives: Our aim was to determine if (1) Hybrid Capture 2 and a PCR-based method were comparable for detection of high-risk human papillomavirus (HPV) clinician-collected and self-collected samples were equally efficient to detect HPV and cervical cancer precursor lesions, and (3) if participation rates improved with home-based versus clinic-based self collection.

Methods: Samples were selected from women participating in a cervical cancer screening study according to HPV, visual inspection with acetic acid, or Pap smear screening results. From 432 of 892 selected women, split sample aliquots were tested for HPV DNA using both the Hybrid Capture 2 assay and the Roche prototype line blot assay.

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