Crystal Karakochuk

Iron Supplementation with Ferrous Sulfate or Ferrous Bisglycinate for 12 Weeks Does Not Influence Group B Streptococcus Colonization in Cambodian Women: A Secondary Analysis of a Randomized Controlled Trial

The Journal of Nutrition

Elisa Cirigliano and Annie Saint and Lulu X Pei and Catherine WY Wong and Siyun Wang and Jordie AJ Fischer and Hou Kroeun and Crystal D Karakochuk

12 / 2025

Acceptability of Antenatal Multiple Micronutrient Supplementation (MMS) Compared to Iron and Folic Acid (IFA) Supplementation in Pregnant Individuals: A Narrative Review

Nutrients

Mihaela C. Kissell and Carolina Pereira and Filomena Gomes and Kidist Woldesenbet and Masresha Tessema and Hiwot Kelemu and Ramadhani Noor and Luz Escubil and Aishwarya Panicker and Ashutosh Mishra and Mai-Anh Hoang and Hou Kroeun and Cassandra Sauer and Meng Sokchea and Crystal D. Karakochuk and Masako Horino and Keith P. West and Akihiro Seita and Djeinam Toure and Umu H. Jalloh and Francis Moses and Aminata S. Koroma and Bakary Diarra and Ousmane Camara and Ouassa Sanogo and Kristine Garn and Martin N. Mwangi

09 / 2025

Folic acid supplementation in children with sickle cell disease: a randomized double-blind noninferiority cross-over trial

The American Journal of Clinical Nutrition

Brock A Williams and Heather McCartney and Joel Singer and Angela M Devlin and Suzanne Vercauteren and Ali Amid and John K Wu and Crystal D Karakochuk

04 / 2025

Population-level anemia prevalence rates may be rendered inaccurate when hemoglobin is measured in pooled capillary blood or with the HemoCue 301 device

International Journal of Laboratory Hematology

Kelsey M. Cochrane and Brock A. Williams and Hou Kroeun and Am Chanthan and Crystal D. Karakochuk

12 / 2024

Emerging Evidence and Critical Issues with the Use of Single-Drop Capillary Blood for the Measurement of Hemoglobin Concentration in Population-Level Anemia Surveys

Advances in Nutrition

Crystal D Karakochuk and Omar Dary and Monica C Flores-Urrutia and Maria Nieves Garcia-Casal and Chika Hayashi and Maria Elena D Jefferds and Robert Johnston and Leila M Larson and Carine Mapango and Dora I Mazariegos Cordero and Denish Moorthy and Sorrel Namaste and Lisa M Rogers and Kuntal Saha and Sara Wuehler

10 / 2024

Optimizing vitamin D status in polycystic ovary syndrome: a systematic review and dose"response meta-analysis

Nutrition Reviews

Kelsey M Cochrane and Jeffrey N Bone and Brock A Williams and Crystal D Karakochuk

09 / 2024

Is a Lower Dose of More Bioavailable Iron (18-mg Ferrous Bisglycinate) Noninferior to 60-mg Ferrous Sulfate in Increasing Ferritin Concentrations While Reducing Gut Inflammation and Enteropathogen Detection in Cambodian Women? A Randomized Controlled Noninferiority Trial

The Journal of Nutrition

Jordie A.J. Fischer and Lulu X. Pei and Rajavel Elango and Kroeun Hou and David M. Goldfarb and Crystal D. Karakochuk

08 / 2023

The effects of oral ferrous bisglycinate supplementation on hemoglobin and ferritin concentrations in adults and children: a systematic review and meta-analysis of randomized controlled trials

Nutrition Reviews

Jordie A J Fischer and Arlin M Cherian and Jeffrey N Bone and Crystal D Karakochuk

07 / 2023

Reticulocyte haemoglobin equivalent (RET-He) as an early marker of responsiveness to oral iron supplementation

Journal of Clinical Pathology

Lulu X Pei and Hou Kroeun and Crystal D Karakochuk

06 / 2023

Pregnancy-induced alterations of 1-carbon metabolism and significance for maternal nutrition requirements

Nutrition Reviews

Kelsey M Cochrane and Brock A Williams and Rajavel Elango and Susan I Barr and Crystal D Karakochuk

08 / 2022

Feasibility of an At-Home Adult Stool Specimen Collection Method in Rural Cambodia

International Journal of Environmental Research and Public Health

Jordie AJ Fischer and Crystal Karakochuk

11 / 2021

Baseline Hemoglobin, Hepcidin, Ferritin, and Total Body Iron Stores are Equally Strong Diagnostic Predictors of a Hemoglobin Response to 12 Weeks of Daily Iron Supplementation in Cambodian Women

The Journal of Nutrition

Lulu X Pei and Hou Kroeun and Suzanne M Vercauteren and Susan I Barr and Tim J Green and Arianne Y Albert and Crystal D Karakochuk

08 / 2021

Iron-Containing Oral Contraceptives and Their Effect on Hemoglobin and Biomarkers of Iron Status: A Narrative Review

Nutrients

Jordie AJ Fischer and Carolina S. Sasai and Crystal Karakochuk

07 / 2021

Daily Oral Supplementation with 60 mg of Elemental Iron for 12 Weeks Alters Blood Mitochondrial DNA Content, but Not Leukocyte Telomere Length in Cambodian Women

Nutrients

Shannon L. Steele and Anthony Y. Y. Hsieh and Izabella Gadawski and Hou Kroeun and Susan Barr and Angela M. Devlin and Hlne C. F. Ct and Crystal Karakochuk

05 / 2021

Strategies for improving recruitment of pregnant women to clinical research: An evaluation of social media versus traditional offline methods in Vancouver, Canada (Preprint)

Kelsey M Cochrane and Jennifer A Hutcheon and Crystal D Karakochuk

04 / 2021

Anemia Prevalence and Anthropometric Status of Indigenous Women and Young Children in Rural Botswana: The San People

Nutrients

Tebogo T. Leepile and Kaelo Mokomo and Maitseo M. M. Bolaane and Andrew D. Jones and Akira Takada and Jennifer L. Black and Eduardo Jovel and Crystal Karakochuk

03 / 2021

Can Automated Hematology Analyzers Predict the Presence of a Genetic Hemoglobinopathy? An Analysis of Hematological Biomarkers in Cambodian Women

Diagnostics

Lulu X. Pei and Tebogo T. Leepile and Kelsey Cochrane and Kaitlyn L. I. Samson and Jordie AJ Fischer and Brock Williams and Hou Kroeun and Lizl Bonifacio and Crystal Karakochuk

02 / 2021

Folic acid supplementation in children with sickle cell disease: study protocol for a double-blind randomized cross-over trial

Trials

Brock A. Williams and Heather McCartney and Erin Adams and Angela M. Devlin and Joel Singer and Suzanne Vercauteren and John K. Wu and Crystal D. Karakochuk

12 / 2020

Regression to the Mean: A Statistical Phenomenon of Worthy Consideration in Anemia Research

Current Developments in Nutrition

Kelsey M Cochrane and Brock A Williams and Jordie AJ Fischer and Kaitlyn LI Samson and Lulu X Pei and Crystal D Karakochuk

10 / 2020

The Effects of Iron Supplementation and Fortification on the Gut Microbiota: A Review

Gastrointestinal Disorders

Emma Finlayson and Jordie AJ Fischer and David M Goldfarb and Crystal Karakochuk

09 / 2020

Is natural (6S)-5-methyltetrahydrofolic acid as effective as synthetic folic acid in increasing serum and red blood cell folate concentrations during pregnancy? A proof-of-concept pilot study

Kelsey M Cochrane and Chantal Mayer and Angela M Devlin and Rajavel Elango and Jennifer A Hutcheon and Crystal D Karakochuk

12 / 2019

Including 60 mg Elemental Iron in a Multiple Micronutrient Supplement Blunts the Increase in Serum Zinc after 12 Weeks of Daily Supplementation in Predominantly Anemic, Nonpregnant Cambodian Women of Reproductive Age

The Journal of Nutrition

Jeffrey B Holmes and Hou Kroeun and Lisa A Houghton and Rosalind S Gibson and Kimberly B Harding and Luz Maria De-Regil and Klaus Kraemer and Susan I Barr and Crystal D Karakochuk

09 / 2019

Measurement and interpretation of hemoglobin concentration in clinical and field settings: a narrative review

Annals of the New York Academy of Sciences

Crystal D. Karakochuk and Sonja Y. Hess and Denish Moorthy and Sorrel Namaste and Megan E. Parker and Aviva I. Rappaport and Rita Wegmller and Omar Dary

08 / 2019

Effect of enhanced homestead food production on anaemia among Cambodian women and children: A cluster randomized controlled trial

Maternal & Child Nutrition

Kristina D. Michaux and Kroeun Hou and Crystal D. Karakochuk and Kyly C. Whitfield and Sokhoing Ly and Vashti Verbowski and Ame Stormer and Keith Porter and Kathy H. Li and Lisa A. Houghton and Larry D. Lynd and Aminuzzaman Talukder and Judy McLean and Timothy J. Green

05 / 2019

The Effect of Daily Iron Supplementation with 60 mg Ferrous Sulfate for 12 Weeks on Non-Transferrin Bound Iron Concentrations in Women with a High Prevalence of Hemoglobinopathies

Journal of Clinical Medicine

Shannon L. Steele and Hou Kroeun and Crystal Karakochuk

02 / 2019

Comparison of a New Multiplex Immunoassay for Measurement of Ferritin, Soluble Transferrin Receptor, Retinol-Binding Protein, C-Reactive Protein and a¹-Acid-glycoprotein Concentrations against a Widely-Used s-ELISA Method

Diagnostics

02 / 2018

Prevalence of Vitamin D Deficiency Varies Widely by Season in Canadian Children and Adolescents with Sickle Cell Disease

Journal of Clinical Medicine

01 / 2018

Mean hemoglobin concentrations in fasting venous and non-fasting capillary blood of Cambodian women using a hemoglobinometer and an automated hematology analyzer.

Clinical chemistry and laboratory medicine

10 / 2017

Serum Soluble Transferrin Receptor Concentrations Are Elevated in Congolese Children with Glucose-6-Phosphate Dehydrogenase Variants, but Not Sickle Cell Variants or a-Thalassemia.

The Journal of nutrition

09 / 2017

High prevalence of thiamine (vitamin B1) deficiency in early childhood among a nationally representative sample of Cambodian women of childbearing age and their children.

PLoS Neglected Tropical Diseases

09 / 2017

The effect of inflammation on serum zinc concentrations and the prevalence estimates of population-level zinc status among Congolese children aged 6-59 months.

European journal of clinical nutrition

08 / 2017

The effect of oral iron with or without multiple micronutrients on hemoglobin concentration and hemoglobin response among nonpregnant Cambodian women of reproductive age: a 2 x 2 factorial, double-blind, randomized controlled supplementation trial

The American Journal of Clinical Nutrition

Crystal D Karakochuk and Mikaela K Barker and Kyly C Whitfield and Susan I Barr and Suzanne M Vercauteren and Angela M Devlin and Jennifer A Hutcheon and Lisa A Houghton and Sophonneary Prak and Kroeun Hou and Tze Lin Chai and Ame Stormer and Sokhoing Ly and Robyn Devenish and Christian Oberkanins and Helene Phringer and Kimberly B Harding and Luz M De-Regil and Klaus Kraemer and Tim J Green

07 / 2017

Variation in haemoglobin measurement across different HemoCue devices and device operators in rural Cambodia.

Journal of clinical pathology

07 / 2017

Correlations between Maternal, Breast Milk, and Infant Vitamin B12 Concentrations among Mother"Infant Dyads in Vancouver, Canada and Prey Veng, Cambodia: An Exploratory Analysis

Nutrients

03 / 2017

Comparison of four immunoassays to measure serum ferritin concentrations and iron deficiency prevalence among non-pregnant Cambodian women and Congolese children

Clinical Chemistry and Laboratory Medicine

Karakochuk, C.D. and Whitfield, K.C. and Rappaport, A.I. and Barr, S.I. and Vercauteren, S.M. and McLean, J. and Hou, K. and Talukder, A. and Houghton, L.A. and Bailey, K.B. and Boy, E. and Green, T.J.

Median urinary iodine concentrations are indicative of adequate iodine status among women of reproductive age in prey veng, Cambodia

Nutrients

Karakochuk, C.D. and Michaux, K.D. and Chai, T.L. and Chan, B.B. and Whit?eld, K.C. and Barr, S.I. and McLean, J. and Talukder, A. and Hou, K. and Ly, S. and Green, T.J.

Prenatal supplementation with Corn Soya Blend Plus reduces the risk of maternal anemia in late gestation and lowers the rate of preterm birth but does not significantly improve maternal weight gain and birth anthropometric measurements in rural Cambodian women: A randomized trial

American Journal of Clinical Nutrition

Janmohamed, A. and Karakochuk, C.D. and Boungnasiri, S. and Chapman, G.E. and Janssen, P.A. and Brant, R. and Green, T.J. and McLean, J.

Folic acid fortified milk increases blood folate to concentrations associated with a very low risk of neural tube defects in Singaporean women of childbearing age

Asia Pacific Journal of Clinical Nutrition

Cheong, M. and Xiao, H.Y. and Tay, V. and Karakochuk, C.D. and Liu, Y.A. and Harvey, S. and Lamers, Y. and Houghton, L.A. and Kitts, D.D. and Green, T.J.

Anemia and micronutrient status ofwomen of childbearing age and children 6"59 months in the Democratic Republic of the Congo

Nutrients

Harvey-Leeson, S. and Karakochuk, C.D. and Hawes, M. and Tugirimana, P.L. and Bahizire, E. and Akilimali, P.Z. and Michaux, K.D. and Lynd, L.D. and Whitfield, K.C. and Moursi, M. and Boy, E. and Foley, J. and McLean, J. and Houghton, L.A. and Gibson, R.S. and Green, T.J.

A method comparison study between two hemoglobinometer models (Hemocue Hb 301 and Hb 201+) to measure hemoglobin concentrations and estimate anemia prevalence among women in Preah Vihear, Cambodia

International Journal of Laboratory Hematology

Rappaport, A.I. and Karakochuk, C.D. and Whitfield, K.C. and Kheang, K.M. and Green, T.J.

Household Consumption of Thiamin-Fortified Fish Sauce Increases Erythrocyte Thiamin Concentrations among Rural Cambodian Women and Their Children Younger Than 5 Years of Age: A Randomized Controlled Efficacy Trial

Journal of Pediatrics

Whitfield, K.C. and Karakochuk, C.D. and Kroeun, H. and Sokhoing, L. and Chan, B.B. and Borath, M. and Sophonneary, P. and Moore, K. and Tong, J.K.T. and McLean, J. and Talukder, A. and Lynd, L.D. and Li-Chan, E.C.Y. and Kitts, D.D. and Green, T.J.

Factors affecting the acceptability and consumption of Corn Soya Blend Plus as a prenatal dietary supplement among pregnant women in rural Cambodia

Public Health Nutrition

Janmohamed, A. and Karakochuk, C.D. and Boungnasiri, S. and Whitfield, K.C. and Chapman, G.E. and Janssen, P. and McLean, J. and Green, T.J.

Anthropometric measures are simple and accurate paediatric weight-prediction proxies in resource-poor settings with a high HIV prevalence

Archives of Disease in Childhood

Whitfield, K.C. and Wozniak, R. and Pradinuk, M. and Karakochuk, C.D. and Anabwani, G. and Daly, Z. and MacLeod, S.M. and Larson, C.P. and Green, T.J.

Improved sanitation facilities are associated with higher body mass index and higher hemoglobin concentration among rural cambodian women in the first trimester of pregnancy

American Journal of Tropical Medicine and Hygiene

Janmohamed, A. and Karakochuk, C.D. and McLean, J. and Green, T.J.

Perinatal consumption of thiamine-fortified fish sauce in rural Cambodia: A randomized clinical trial

JAMA Pediatrics

Whitfield, K.C. and Karakochuk, C.D. and Kroeun, H. and Hampel, D. and Sokhoing, L. and Chan, B.B. and Borath, M. and Sophonneary, P. and McLean, J. and Talukder, A. and Lynd, L.D. and Li-Chan, E.C.Y. and Kitts, D.D. and Allen, L.H. and Green, T.J.

Evaluation of two methods to measure hemoglobin concentration among women with genetic hemoglobin disorders in Cambodia: A method-comparison study

Clinica Chimica Acta

Crystal D. Karakochuk and Amynah Janmohamed and Kyly C. Whitfield and Susan I. Barr and Suzanne M. Vercauteren and Hou Kroeun and Aminuzzaman Talukder and Judy McLean and Timothy J. Green

02 / 2015

Genetic hemoglobin disorders rather than iron deficiency are a major predictor of hemoglobin concentration in women of reproductive age in rural prey veng, Cambodia

Journal of Nutrition

Karakochuk, C.D. and Whitfield, K.C. and Barr, S.I. and Lamers, Y. and Devlin, A.M. and Vercauteren, S.M. and Kroeun, H. and Talukder, A. and McLean, J. and Green, T.J.

The homozygous hemoglobin EE genotype and chronic inflammation are associated with high serum ferritin and soluble transferrin receptor concentrations among women in rural Cambodia

Journal of Nutrition

Karakochuk, C.D. and Whitfield, K.C. and Rappaport, A.I. and Barr, S.I. and Vercauteren, S.M. and McLean, J. and Prak, S. and Hou, K. and Talukder, A. and Devenish, R. and Green, T.J.

Poor thiamin and riboflavin status is common among women of childbearing age in rural and urban Cambodia

Journal of Nutrition

Whitfield, K.C. and Karakochuk, C.D. and Liu, Y. and McCann, A. and Talukder, A. and Kroeun, H. and Ward, M. and McNulty, H. and Lynd, L.D. and Kitts, D.D. and Li-Chan, E.C.Y. and McLean, J. and Green, T.J.

Maternal vitamin D3 supplementation at 50 mg/d protects against low serum 25-hydroxyvitamin D in infants at 8 wk of age: A randomized controlled trial of 3 doses of vitamin D beginning in gestation and continued in lactation

American Journal of Clinical Nutrition

March, K.M. and Chen, N.N. and Karakochuk, C.D. and Shand, A.W. and Innis, S.M. and Von Dadelszen, P. and Barr, S.I. and Lyon, M.R. and Whiting, S.J. and Weiler, H.A. and Green, T.J.

Food Sharing Practices in Households Receiving Supplemental Foods for the Treatment of Moderate Acute Malnutrition in Ethiopian Children

Journal of Hunger and Environmental Nutrition

Karakochuk, C.D. and van den Briel, T. and Stephens, D. and Zlotkin, S.

Elevated levels of iron in groundwater in Prey Veng province in Cambodia: A possible factor contributing to high iron stores in women

Journal of Water and Health

Karakochuk, C.D. and Murphy, H.M. and Whitfield, K.C. and Barr, S.I. and Vercauteren, S.M. and Talukder, A. and Porter, K. and Kroeun, H. and Eath, M. and McLean, J. and Green, T.J.

Treatment of moderate acute malnutrition with ready-to-use supplementary food results in higher overall recovery rates compared with a corn-soya blend in children in southern Ethiopia: An operations research trial

American Journal of Clinical Nutrition

Karakochuk, C. and Van Den Briel, T. and Stephens, D. and Zlotkin, S.