Postnatal cytomegalovirus exposure in infants of antiretroviral-treated and untreated HIV-infected mothers.
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HIV-1 and CMV are important pathogens transmitted via breastfeeding. Furthermore, perinatal CMV transmission may impact growth and disease progression in HIV-exposed infants. Although maternal antiretroviral therapy reduces milk HIV-1 RNA load and postnatal transmission, its impact on milk CMV load is unclear. We examined the relationship between milk CMV and HIV-1 load (4-6 weeks postpartum) and the impact of antiretroviral treatment in 69 HIV-infected, lactating Malawian women and assessed the relationship between milk CMV load and postnatal growth in HIV-exposed, breastfed infants through six months of age. Despite an association between milk HIV-1 RNA and CMV DNA load (0.39 log(10) rise CMV load per log(10) rise HIV-1 RNA load, 95% CI 0.13-0.66), milk CMV load was similar in antiretroviral-treated and untreated women. Higher milk CMV load was associated with lower length-for-age (-0.53, 95% CI: -0.96, -0.10) and weight-for-age (-0.40, 95% CI: -0.67, -0.13) Z-score at six months in exposed, uninfected infants. As the impact of maternal antiretroviral therapy on the magnitude of postnatal CMV exposure may be limited, our findings of an inverse relationship between infant growth and milk CMV load highlight the importance of defining the role of perinatal CMV exposure on growth faltering of HIV-exposed infants.
Published Version (Please cite this version)
Meyer, Sarah A, Daniel J Westreich, Emily Patel, Elizabeth P Ehlinger, Linda Kalilani, Rachel V Lovingood, Thomas N Denny, Geeta K Swamy, et al. (2014). Postnatal cytomegalovirus exposure in infants of antiretroviral-treated and untreated HIV-infected mothers. Infect Dis Obstet Gynecol, 2014. p. 989721. 10.1155/2014/989721 Retrieved from https://hdl.handle.net/10161/13925.
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Dr. Geeta Swamy, MD, is Professor of Obstetrics and Gynecology in the Division of Maternal-Fetal Medicine, having served as the director of the Duke Perinatal Research Center and Vice Chair for Research and Faculty Development in the Department of ObGyn. She has achieved international acclaim as a clinician researcher and expert in the field of maternal immunization and perinatal infection. As a consultant to the World Health Organization, Dr. Swamy contributes her knowledge to advance international work to evaluate the immunogenicity, safety, and efficacy of vaccines in pregnant women. The American College of ObGyn has grown to be the “collective voice” for women’s health, and Dr. Swamy has been a leader within that organization for the last two decades. She currently serves as the Co-Principal Investigator for the NIH-NIAID Vaccine Treatment and Evaluation (VTEU) and CDC Clinical Immunization Safety Assessment. In addition, she has been a leader at Duke and nationally in promoting a culture of scientific integrity and transparency in research. She has been instrumental in developing and leading the School of Medicine’s research initiatives in administration, regulatory oversight, and compliance. In 2018, she became Vice Dean for Scientific Integrity in the School of Medicine and Associate Vice President for Research for Duke University. In these roles she oversees the Duke Office of Scientific Integrity (DOSI) which houses the Advancing Scientific Integrity, Services, & Training (ASIST) initiative, conflict of interest, clinical quality management, incident response in research, and research misconduct. She also oversees the Duke Office of Research Initiatives, the Duke Health IRB, Office of Research Administration (ORA), and Office of Research Contracts (ORC).
Dr. Permar's work focuses on the development of vaccines to prevent vertical transmission of neonatal viral pathogens. She has utilized the nonhuman primate model of HIV/AIDS to characterize the virus-specific immune responses and virus evolution in breast milk and develop a maternal vaccine regimen for protection against breast milk transmission of HIV. In addition, Dr. Permar's lab has advanced the understanding of HIV-specific immune responses and virus evolution in vertically-transmitting and nontransmitting HIV-infected women, defining maternal immune responses that may protect against neonatal transmission of HIV. Importantly, Dr. Permar has established a nonhuman primate model of congenital CMV infection adn is using this model to establish the maternal immune responses that are necessary for protection against placental virus transmission. Finally, Dr. Permar is studying the impact and prevention of postnatal CMV transmission in preterm infants.
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