Research highlights new parameters for study of HIV
16-Mar-2011 - A research article co-authored by Brenna Anderson, MD, director of Reproductive Infectious Diseases
Consultation in the Division of Maternal-Fetal Medicine at Women & Infants Hospital of Rhode Island, was included in the recently
published special issue of the American Journal of Reproductive Immunology.
The publication is an outgrowth of a workshop on the human immunodeficiency virus (HIV) that took place at Dartmouth
Medical School in the summer of 2010. The workshop, sponsored by the National Institutes of Health and National Institute of Allergy and
Infectious Diseases for invited attendees only, was designed to bring together HIV researchers who specialize in mucosal immunity.
Mucosal immunity is one of the body's way of protecting itself against disease and is the next frontier for HIV researchers.
Dr. Anderson's article - co-written with Susan Cu-Uvin, MD, of The Miriam Hospital - is entitled "Clinical
Parameters Essential to Methodology and Interpretation of Mucosal Responses." It explores the clinical characteristics that are
important for researchers to consider when they study the female genital tract in the quest for cures for HIV.
With more than 30 million people diagnosed with HIV across the world, millions of dollars continue to be spent
on research aimed at fighting the disease. While the advent of antiretroviral therapy to treat HIV has not slowed the spread of infection,
research has helped health care providers understand the disease, which has changed the life expectancy of an individual diagnosed with
HIV in the United States from terminal to chronic illness.
Over the past few years, research attention has shifted from blood to the genital tract as the major point-of-entry for the virus. To
effectively produce results, however, the proper guidelines must be established for research into the genital tract's mucosal immunity,
Dr. Anderson noted.
"The normal values for the measurement of immune globulins, for example, vary by approximately 100-fold based on the site and
method of collection within the human female genital tract," explained Dr. Anderson, who is also assistant professor of
obstetrics and gynecology at The Warren Alpert Medical School of Brown University. "More efforts are needed to
standardize both sampling methods and assays of female genital tract immunity."
"Research attention has shifted from management of HIV to a focus on the most common site of acquisition - the female genital
tract," she explained. "If researchers do not consider specific clinical parameters when enrolling subjects into their
studies, it could lead to faulty interpretation of results."
Important topics for researchers to consider, the article notes, are the method and source of sample collection,
the individual patient characteristics, and, when recruiting HIV-infected women, HIV disease characteristics.
There are a number of clinical characteristics that are known to alter genital immunity, Dr. Anderson said. These
include a woman's menstrual cycle, age, race, body mass index, any contraception being used, and recent intercourse.
"Contraception containing progesterone, for example, alter the cervical mucous and the uterine lining. Given that
sex hormones alter many components of genital immunity, it is likely that hormonal contraception has some impact on the innate
immunity within the female genital tract," she said. "This should be considered when conducting research."
About Women & Infants Hospital
Women & Infants Hospital of Rhode Island, a Care New England hospital, is one of the nation's leading specialty hospitals
for women and newborns and a U.S.News Best Hospital in Gynecology. The primary teaching affiliate of The Warren Alpert Medical
School of Brown University for obstetrics, gynecology and newborn pediatrics, as well as a number of specialized programs in
women's medicine, Women & Infants is the seventh largest obstetrical service in the country with more than 8,500
deliveries per year. In 2009, Women & Infants opened the country's largest, single-family room neonatal intensive care unit.
New England's premier hospital for women and newborns, Women & Infants and Brown offer fellowship programs in gynecologic oncology,
maternal-fetal medicine, urogynecology and reconstructive pelvic surgery, neonatal-perinatal medicine, pediatric and perinatal pathology,
gynecologic pathology and cytopathology, and reproductive endocrinology and infertility, as well as the nation's only fellowship program
in obstetric medicine.
Women & Infants has been designated as a Breast Center of Excellence from the American College of Radiography; a Center for In Vitro
Maturation Excellence by SAGE In Vitro Fertilization; a Center of Biomedical Research Excellence by the National Institutes of Health;
and a Neonatal Resource Services Center of Excellence. It is one of the largest and most prestigious research facilities in high risk
and normal obstetrics, gynecology and newborn pediatrics in the nation, and is a member of the National Cancer Institute's
Gynecologic Oncology Group.
Contact: Susan McDonald
Women & Infants Hospital