Karen M OCallaghan
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Explore the profile of Karen M OCallaghan including associated specialties, affiliations and a list of published articles.
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17
Citations
140
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Recent Articles
1.
Pell L, Qamar H, Bassani D, Heasley C, Funk C, Chen C, et al.
mSphere
. 2025 Feb;
:e0103224.
PMID: 39992135
Importance: Among infants born in Dhaka, Bangladesh, a 7-day regimen of ATCC 202195 (LP202195) plus fructooligosaccharide (FOS) did not colonize the infant gastrointestinal (GI) tract. The absence of colonization is...
2.
Watson K, Dasiewicz A, Bassani D, Chen C, Qamar H, OCallaghan K, et al.
Curr Dev Nutr
. 2024 Dec;
8(12):104495.
PMID: 39649476
Background: Assessments of the efficacy of interventions to improve child growth are often based on differences in mean height-for-age -scores (HAZ) and stunting (HAZ<-2) in randomized controlled trials (RCTs). However,...
3.
Gias M, Qamar H, Fariha F, Al Mahmud A, Shah P, Abrams S, et al.
Public Health Nutr
. 2024 Nov;
27(1):e265.
PMID: 39575549
Objective: Growth faltering is widespread in many low- and middle-income countries, but its effects on childhood bone mass accrual are unknown. The objective of this study was to estimate associations...
4.
Yang W, Chitale R, OCallaghan K, Sudfeld C, Smith E
Nutr Rev
. 2024 Jul;
83(3):e892-e903.
PMID: 38950419
Context: Previous research linked vitamin D deficiency in pregnancy to adverse pregnancy outcomes. Objective: Update a 2017 systematic review and meta-analysis of randomized controlled trials (RCTs) on the effect of...
5.
OCallaghan K, Nowak K, Dalrymple K, Poston L, Rigutto-Farebrother J, Quotah O, et al.
Br J Nutr
. 2024 Apr;
132(1):40-49.
PMID: 38634258
Prenatal vitamin D deficiency is widely reported and may affect perinatal outcomes. In this secondary analysis of the UK Pregnancies Better Eating and Activity Trial, we examined vitamin D status...
6.
Krupa C, Qamar H, OCallaghan K, Onoyovwi A, Al Mahmud A, Ahmed T, et al.
Endocr Metab Sci
. 2024 Apr;
14:None.
PMID: 38558882
Vitamin D is a key regulator of bone mineral homeostasis and may modulate maternal bone health during pregnancy and postpartum. Using previously-collected data from the Maternal Vitamin D for Infant...
7.
OCallaghan K, Qamar H, Gernand A, Onoyovwi A, Zlotkin S, Mahmud A, et al.
BMJ Nutr Prev Health
. 2024 Jan;
6(2):282-292.
PMID: 38264359
Background: Vitamin D may modify iron status through regulation of hepcidin and inflammatory pathways. This study aimed to investigate effects of maternal vitamin D supplementation on iron status in pregnancy...
8.
Sidiqi A, Fariha F, Shanta S, Dasiewicz A, Al Mahmud A, Moore D, et al.
Pediatr Res
. 2023 Apr;
94(3):1195-1202.
PMID: 37037953
Background: Given limited experience in applying the creatine-(methyl-D) (DCr) dilution method to measure skeletal muscle mass (SMM) in young children, the feasibility of deployment in a fielding setting and performance...
9.
Khan A, Badar S, OCallaghan K, Zlotkin S, Roth D
Curr Dev Nutr
. 2022 Dec;
6(10):nzac143.
PMID: 36475017
Iron is an essential micronutrient for humans and their intestinal microbiota. Host intestinal cells and iron-dependent bacteria compete for intraluminal iron, so the composition and functions of the gut microbiota...
10.
OCallaghan K, Shanta S, Fariha F, Harrington J, Al Mahmud A, Emdin A, et al.
Am J Clin Nutr
. 2021 Dec;
115(3):770-780.
PMID: 34849536
Background: Maternal vitamin D status during pregnancy and lactation is a modifiable factor that may influence offspring musculoskeletal outcomes. However, few randomized trials have tested the effects of prenatal or...