Personal profile
Research interests
The central research goal of our lab is to identify the molecular underpinnings of adverse maternal fetal cardio-metabolic outcomes from exposure to altered sex hormone milieu and endocrine disrupting chemicals in-utero.
We are focusing on elucidating the mechanisms by which the perinatal environment can modulate biological processes in the offspring by integrating gestational physiology in a large animal model with cellular and molecular biology. Knowledge gained through these studies will help identify strategies targeted toward prevention and treatment such adverse outcomes.
Cardiovascular disease (CVD) remains the leading cause of death worldwide, with a prevalence rate of 49.2% increasing with age in males and females. Despite significant advances in identifying CVD risk factors and their therapeutics, the morbidity and mortality from CVD remain high. Substantial evidence from human, animal, and epidemiological studies indicate that early life insults in-utero adversely program the cardiometabolic system, thereby predisposing to CVD later in life. Moreover, the underlying molecular mechanisms and sex-specific impact of CVD-related pathological cardiac remodeling and associated morbidity and mortality are not well understood. Currently we are addressing the sex specific impact of such in-utero insults on the cardio metabolic system in the offspring utilizing a sheep model of gestational androgen excess.
Mentoring
I am willing to mentor in the both basic science and clinical research in the field of maternal-fetal, cardiovascular and endocrine science.
Available to Mentor:
- Undergraduate Students
- Post-Baccalaureate Students
- PhD Students
- Health Professions (Medical, OT, PT, Dental, Audiology, etc.) Students
- Postdocs
- Residents and Fellows
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Collaborations and top research areas from the last five years
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Developmental programming: gestational exposure to excess testosterone disrupts maternal steroid homeostasis and perturbs the steroid-lipid relationship in sheep
Saadat, N., Saeed, R., Pallas, B., Vyas, A. K., Auchus, R. J. & Padmanabhan, V., Mar 2026, In: Molecular and Cellular Endocrinology. 613, 112706.Research output: Contribution to journal › Article › peer-review
Open Access -
Pre- and postnatal exposure to PM2.5 and NO2 and blood pressure in children: Results from the ECHO Cohort
ECHO Cohort Consortium, Mar 1 2026, In: Environmental Research. 292, 123529.Research output: Contribution to journal › Article › peer-review
Open Access -
Exploratory analysis of differences at the transcriptional interface between the maternal and fetal compartments of the sheep placenta and potential influence of fetal sex
Halloran, K. M., Saadat, N., Pallas, B., Vyas, A. K. & Padmanabhan, V., Jun 1 2025, In: Molecular and Cellular Endocrinology. 603, 112546.Research output: Contribution to journal › Article › peer-review
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Multicenter Analysis of Cardiometabolic-Related Diagnoses in Youth With Congenital Adrenal Hyperplasia: A PEDSnet Study
Chen, L. M., Valentine, A., Davis, S. M., Graber, E., Fechner, P. Y., Furniss, A., Nahata, L., Pyle, L., Vyas, A. K., Vogiatzi, M. G. & Nokoff, N. J., Apr 1 2025, In: Journal of Clinical Endocrinology and Metabolism. 110, 4, p. e1009-e1016Research output: Contribution to journal › Article › peer-review
Open Access2 Link opens in a new tab Scopus citations -
Persistence of cardiac malprogramming in late gestational fetal sheep by early to midgestational testosterone excess
Alkhatib, B., Purswani, D., Dantam, A., Razan, M. R., Jabari, M., Padmanabhan, V. & Vyas, A. K., Oct 2025, In: American Journal of Physiology - Heart and Circulatory Physiology. 329, 4, p. H991-H1005Research output: Contribution to journal › Article › peer-review
Open Access