Catherine O'Neill Buck, MD, MHS
Assistant ProfessorDownloadHi-Res Photo
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Neonatal-Perinatal Medicine
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Yale School of Medicine
333 Cedar Street, PO Box 208064
New Haven, CT 06520
United States
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Assistant Professor
Biography
Caty Buck is a neonatologist and clinical researcher. She completed her pediatric training at UTSW Medical Center in Dallas, Texas and her Neonatal-Perinatal Medicine fellowship at Women and Infant's Hospital and Brown Medical School. Her research is focused on understanding how maternal metabolic health in pregnancy and the early newborn period influence infant growth, body composition, and neurodevelopment.
Last Updated on May 28, 2025.
Appointments
Neonatal-Perinatal Medicine
Assistant ProfessorPrimary
Other Departments & Organizations
Education & Training
- MHS
- Yale School of Medicine, Clinical Investigation (2025)
- Neonatal-Perinatal Medicine Fellowship
- Brown University/Women and Infants Hospital (2019)
- Chief Residency
- University of Texas Southwestern Medical School (2016)
- Pediatric Residency
- University of Texas Southwestern Medical School (2015)
- MD
- University of Connecticut School of Medicine
- BS
- University of Connecticut, Molecular/Cell Biology, Spanish
Research
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Overview
Medical Research Interests
Body Composition; Fetal Nutrition Disorders; Growth; Infant, Newborn; Neonatology; Obesity; Pediatrics
ORCID
0000-0003-3731-943X- View Lab Website
Yale Neonatal NOuRISH Team
Research at a Glance
Yale Co-Authors
Frequent collaborators of Catherine O'Neill Buck's published research.
Publications Timeline
A big-picture view of Catherine O'Neill Buck's research output by year.
Research Interests
Research topics Catherine O'Neill Buck is interested in exploring.
Sarah N. Taylor, MD, MSCR
Veronika Shabanova, PhD
Sarah McCollum
TuKiet Lam, PhD, BS
20Publications
87Citations
Infant, Newborn
Body Composition
Publications
2025
Post-discharge nutrition to optimize preterm infant short- and long-term outcomes
Taylor S, Buck C. Post-discharge nutrition to optimize preterm infant short- and long-term outcomes. Seminars In Fetal And Neonatal Medicine 2025, 30: 101637. PMID: 40246652, DOI: 10.1016/j.siny.2025.101637.Peer-Reviewed Original ResearchCitationsMeSH Keywords and ConceptsConceptsPost-discharge nutritionLong-term outcomesPreterm infantsDegree of preterm birthVery preterm infantsMaternal milk feedingInfant growth patternsHealthy growth patternsDevelopment of obesityInfant short-Preterm birthFetal nutritionClinical trialsNutritional deficitsBody compositionLong-term healthMilk feedingDeliver individualized careGrowth patternPost-hospital dischargeSupplemental nutritionNutritional supplementsPretermInfantsNeurodevelopmental difficultiesWhat is the best nutritional strategy for moderate to late preterm infants?
Bhatnagar A, Buck C. What is the best nutritional strategy for moderate to late preterm infants? Journal Of Perinatology 2025, 45: 1177-1179. PMID: 40175713, DOI: 10.1038/s41372-025-02283-4.Peer-Reviewed Original ResearchAlterations in infant adipokine concentrations in the first postnatal week with exposure to diabetes in pregnancy
Borden C, Shabanova V, Taylor S, Buck C. Alterations in infant adipokine concentrations in the first postnatal week with exposure to diabetes in pregnancy. Journal Of Perinatology 2025, 45: 622-627. PMID: 40121331, PMCID: PMC12278066, DOI: 10.1038/s41372-025-02269-2.Peer-Reviewed Original ResearchAltmetricConceptsPostnatal weekPreterm infantsExposed to diabetesMetabolic hormonesNon-DM groupExposure to diabetesEarly postnatal periodHigher leptinLower ghrelinInfant bloodTerm groupDM groupProspective cohortAdipokine concentrationsPostnatal periodEarly alterationsHormone concentrationsInfantsPretermHormonePrematurityPregnancyGhrelinLeptinResistinAlterations in newborn metabolite patterns with preterm birth and diabetes in pregnancy
Buck C, McCollum S, Wang W, Lam T, Taylor S, Shabanova V. Alterations in newborn metabolite patterns with preterm birth and diabetes in pregnancy. Pediatric Research 2025, 98: 1023-1032. PMID: 39824937, PMCID: PMC12267566, DOI: 10.1038/s41390-025-03844-1.Peer-Reviewed Original ResearchCitationsConceptsPreterm infantsCardiometabolic outcomesMetabolite patternsStudy of termMetabolic changesInfluence of prematuritySkin fold thickness measurementsCohort of infantsUnique metabolic signatureNon-DM groupAdipose developmentExposure to diabetesArm circumference measurementsBody composition assessmentAssociated with adiposityBody fat percentAdverse growthDM exposurePreterm birthTargeted metabolomicsInfant bloodTerm groupDM groupGA groupPretermUtilizing preterm infant body composition assessments to guide neonatal nutrition
Buck C. Utilizing preterm infant body composition assessments to guide neonatal nutrition. Current Opinion In Pediatrics 2025, 37: 191-197. PMID: 39831772, PMCID: PMC11882371, DOI: 10.1097/mop.0000000000001434.Peer-Reviewed Original ResearchAltmetricConceptsPreterm infantsBody composition assessmentHuman milk fortificationComposition assessmentBody composition assessment toolsBody composition outcomesBody composition changesEarly nutritional exposuresFat-free massParenteral nutritionNewborn periodPretermNeonatal nutritionComposite outcomeFormula supplementationLean massComposition assessment toolsInfant growthMilk fortificationNutritional exposuresEarly nutritionBody compositionRoutine useInfantsMuscle mass development
2024
ECI biocommentary: Catherine Buck
Buck C. ECI biocommentary: Catherine Buck. Pediatric Research 2024, 96: 1529-1529. PMID: 39289591, DOI: 10.1038/s41390-024-03591-9.Peer-Reviewed Original ResearchEstablishing feasibility and reliability of subcutaneous fat measurements by ultrasound in very preterm infants
Buck C, Santoro K, Shabanova V, Martin C, Taylor S. Establishing feasibility and reliability of subcutaneous fat measurements by ultrasound in very preterm infants. Pediatric Research 2024, 96: 1724-1731. PMID: 39069538, PMCID: PMC11772127, DOI: 10.1038/s41390-024-03439-2.Peer-Reviewed Original ResearchCitationsAltmetricConceptsVery preterm infantsBody composition assessmentPreterm infantsPostmenstrual ageMarkers of metabolic healthFat distributionBedside ultrasoundCohort of very preterm infantsComposition assessmentWeeks' PMA,Metabolic healthIntra-rater intraclass correlation coefficientBrain growthBody composition metricsBody composition outcomesBedside ultrasound techniqueRegional fat distributionPoint of care ultrasoundIntraclass correlation coefficientPostmenstrual weeksMulticenter cohortRegional fatSubcutaneous fat distributionComposite outcomeSubcutaneous fat measurements
2023
Diabetes in Pregnancy, Neonatal Morbidities, and Early Growth in Moderate or Late Preterm Infants.
Buck C, Shabanova V, Clark R, Taylor S. Diabetes in Pregnancy, Neonatal Morbidities, and Early Growth in Moderate or Late Preterm Infants. 2023, 152 PMID: 37969002, DOI: 10.1542/peds.2023-061285.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsLate preterm infantsPreterm infantsGestational ageNeonatal morbidityBirth weightDay 14Pediatrix Clinical Data WarehouseNeonatal intensive care unitCommon neonatal morbiditiesShort-term morbidityIntensive care unitFirst postnatal dayPercent weight changeFirst postnatal weekClinical data warehouseDM groupRespiratory supportTerm morbidityCare unitDiabetes exposureAdjusted differenceCongenital anomaliesPostnatal dayHealth characteristicsPostnatal week
2022
Control del crecimiento y la composición corporal: nuevas metodologías
Taylor SN, Buck CO. Control del crecimiento y la composición corporal: nuevas metodologías. World Review Of Nutrition And Dietetics 2022, 122: 34-48. PMID: 36174504, DOI: 10.1159/000526496.Peer-Reviewed Original ResearchGrowth patterns among late preterm infants of mothers with diabetes
Buck CO, Shabanova V, Taylor SN. Growth patterns among late preterm infants of mothers with diabetes. The Journal Of Maternal-Fetal & Neonatal Medicine 2022, 35: 10116-10123. PMID: 36075588, DOI: 10.1080/14767058.2022.2119125.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsLate preterm infantsUnexposed infantsPreterm infantsFirst postnatal weekGreater weight gainDM groupMaternal diabetesWeight gainPostnatal weekWeight trajectoriesRetrospective longitudinal analysisAge 2 yearsLong-term riskAge twoCardiometabolic diseasesExposure groupDiabetesInfantsAverage weightGrowth patternHighest average weightTerm riskEarly childhoodFurther studiesPregnancy
Clinical Trials
Current Trials
Preventing Obesity in Preterm Infants
HIC ID2000031084RolePrincipal InvestigatorPrimary Completion Date09/30/2026Recruiting Participants
Clinical Care
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Overview
Clinical Specialties
Neonatal - Perinatal Medicine
Board Certifications
Neonatal-Perinatal Medicine
- Certification Organization
- AB of Pediatrics
- Original Certification Date
- 2022
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News
- July 02, 2025
Updates in Neonatal Nutrition and Gut Health
- February 28, 2025
Yale Pediatrics Poster Presenters at PAS 2025
- November 19, 2024
Prematurity Awareness Month: Research on Moderate to Late Preterm Infants
- October 09, 2024Source: Yale News
Insights & Outcomes: Neuron Networks, Arctic Warming, and Neonatal Nutrition
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Yale School of Medicine
333 Cedar Street, PO Box 208064
New Haven, CT 06520
United States