Clinical Interests:  Global maternal-neonatal health, growth and nutrition in the neonate, management of complex infections in the high-risk neonate, antimicrobial stewardship in the NICU

Scholarly Focus: Dr. Hendrixson’s research focuses on improving maternal and early infant nutrition to optimize growth and improve long-term outcomes in low- and middle-income settings. He works on clinical and clinical-translational trials targeting populations at high-risk for undernutrition and growth faltering. He is currently co-investigator for randomized controlled clinical trials in Sierra Leone assessing ready-to-use supplementary foods for the treatment of undernutrition in pregnancy and for a novel ready-to-use therapeutic food for the treatment of severe acute malnutrition. He serves as the PI of studies investigating the interactions of the plasma metabolome, breastmilk composition and intestinal microbiome with infant growth among HIV-exposed uninfected infants in Kenya.  Additionally, he is the PI of study investigating associations between maternal iron status in pregnancy and infant neurodevelopmental outcomes in Kenya. He is an affiliate investigator with the University of Washington Nutrition Obesity Research Center and the University of Washington/ Fred Hutchinson Center for AIDS Research.

Research Funding:

2025-2027  Iron deficiency in pregnancy and neuro-developmental outcomes of HIV-exposed uninfected infants. UW Center for AIDS Research New Investigator Award. Role: PI, Total Award: $75,000
2023-2028   The effect of the maternal plasma and breastmilk metabolome on the infant gut microbiome and growth. NIH NICHD K23. Role: PI, Total Award: $805,056
2023-2025    The plasma metabolome, gut microbiome, and growth in HIV-exposed uninfected infants. Nutrition Obesity Research Center. Role: PI, Total Award: $100,000
2023-2025 Improving COgnition and GEstational duration with targeted NuTrition (COGENT). Good Ventures Foundation/ Open Philanthropy. Role: Co-investigator, Total Award: $1,500,000
 

Administration/Education Roles: Locally, Dr. Hendrixson is a member of the Neonatal-Perinatal Fellowship Program Evaluation committee at UW/SCH, the Pediatric Infectious Diseases Fellowship Selection Committee, ALIGN (Advancing learning and innovation in global neonatology), and MIND (Microbial Interactions with Nutrition and Development). Nationally, Dr. Hendrixson is a member of the CHNC Infectious Diseases Focus Group. Internationally, he serves as a contributing member to the Management of At-Risk Mothers and Infants Under Six Months (MAMI) Special Interest Group within the Emergency Nutrition Network. Educational responsibilities include training medical students, resident pediatricians, fellows, neonatal advanced practitioners, and other advanced practice providers through his work in the Division of Neonatology and the Division of Pediatric Infectious Diseases.