RKJcollab Under Construction

Research


🛠 Current Projects

Epigenomic biomarkers of the incomplete maternal protection in type 1 diabetes
Epigenomic biomarkers of the incomplete maternal protection in type 1 diabetes
2024-2027
This study leverages cutting-edge statistical approaches to combine pregnancy and early life epigenetic measures from the ENDIA cohort with early life epigenetic measures and follow-up in the TEDDY and DAISY cohorts to deliver new insights into the impact of the T1D in utero environment on offspring T1D risk.
Epigenomic Mechanisms of the Maternal Protection in Type 1 Diabetes
Epigenomic Mechanisms of the Maternal Protection in Type 1 Diabetes
2023-2025
We will generate a robust catalogue of cell-type specific epigenetic measures on ENDIA subjects exposed and unexposed to maternal T1D and use it to deliver mechanistic insights into the cell compartments and biological pathways by which features of the maternal T1D in utero environment may affect offspring T1D risk.
Pharmacogenetic approaches to drug metabolism in American Indian Alaska Native People
Pharmacogenetic approaches to drug metabolism in American Indian/Alaska Native People
2023-2025
To understand perspectives on participant engagement, return of results, and data sharing from historically underrepresented participants (e.g., AIAN, African American, and Hispanic/Latino) in the Colorado Center for Personalized Medicine (CCPM) Biobank with focus groups and surveys. Develop a cross-site framework for assessing biobank participants’ perspectives and engagement related to bioethical issues in biomedical research.
Effects of Rare Variants and Ancestry on Beta Agonist Response in Asthma and COPD
Effects of Rare Variants and Ancestry on Beta Agonist Response in Asthma and COPD
2022-2025
We propose genetic studies based on β2AR pathway gene variants and whole-genome studies of rare variants and genetic ancestry to identify novel mechanisms for inter-ethnic differences in drug response and disease severity.
Exploring the Genomic Mechanism Behind the Maternal Protection from T1D
Exploring the Genomic Mechanism Behind the Maternal Protection from T1D
2021-2025
The overarching project goal is to gain better understanding of the genomic mechanism behind the maternal protection from T1D by scanning the epigenome for regions/genes where maternal protection may be operating and identifying maternal characteristics driving those epigenetic changes.

📁 Past Projects

Multi-omics integration to characterize genetic influences on metabotypes of type 1 diabetes progression
Multi-omics integration to characterize genetic influences on metabotypes of type 1 diabetes progression
2020-2023
In this study, we examine more closely the metabolomics traits associated with type 1 diabetes and characterize the genetic variation driving those changes.
BioData Catalyst Fellows Program: Prediction and Characterization of Genetically Regulated Expression of Target Tissues in Asthma
BioData Catalyst Fellows Program: Prediction and Characterization of Genetically Regulated Expression of Target Tissues in Asthma
2020-2021
This study combines TOPMed whole genome sequencing, genetic arrays, and gene expression signatures of CD4+ T cell and nasal airway epithelium from two populations of African ancestry to gain insight into the genetics driving dysfunction in asthma.

📚 Publications

2025

A rapid accurate approach to inferring pedigrees in endogamous populations.
A rapid accurate approach to inferring pedigrees in endogamous populations.
Cole M Williams, Brooke A Scelza, Sarah D Slack, Neus Font-Porterias, Dana R Al-Hindi, …, Ethan Lange, Randi K Johnson, Christopher R Gignoux, Sohini Ramachandran, Brenna M Henn
Genetics  ·  20 May 2025  ·  pubmed:40393068
Prediction and Characterization of Genetically Regulated Expression of Target Tissues in Asthma.
Prediction and Characterization of Genetically Regulated Expression of Target Tissues in Asthma.
Sarah D Slack, Erika Esquinca, Christopher H Arehart, Meher Preethi Boorgula, Brooke Szczesny, …, Christopher R Gignoux, Katerina Kechris, Kathleen C Barnes, Rasika A Mathias, Randi K Johnson
medRxiv : the preprint server for health sciences  ·  08 Feb 2025  ·  pubmed:39974046
Characterizing substructure via mixture modeling in large-scale genetic summary statistics.
Characterizing substructure via mixture modeling in large-scale genetic summary statistics.
Hayley R Stoneman, Adelle M Price, Nikole Scribner Trout, Riley Lamont, Souha Tifour, …, Meng Lin, Nicholas Rafaels, Christopher R Gignoux, Katie M Marker, Audrey E Hendricks
American journal of human genetics  ·  16 Jan 2025  ·  pubmed:39824191

2024

Prevalence of Pathogenic Transthyretin Gene Variants in the Rocky Mountain Region.
Prevalence of Pathogenic Transthyretin Gene Variants in the Rocky Mountain Region.
Ellie Jacoby, Dianna Quan, Emily Todd, Jonathan Shortt, Harry Smith, Nicholas Rafaels, Kristy Crooks
Muscle & nerve  ·  10 Dec 2024  ·  pubmed:39655870
Precision treatment of beta-cell monogenic diabetes: a systematic review.
Precision treatment of beta-cell monogenic diabetes: a systematic review.
Rochelle N Naylor, Kashyap A Patel, Jarno L T Kettunen, Jonna M E Männistö, Julie Støy, …, Michel Polak, Tina Vilsbøll, Siri A W Greeley, Andrew T Hattersley, Tiinamaija Tuomi
Communications medicine  ·  18 Jul 2024  ·  pubmed:39025920
Maternal Serum Metabolomics in Mid-Pregnancy Identifies Lipid Pathways as a Key Link to Offspring Obesity in Early Childhood
Maternal Serum Metabolomics in Mid-Pregnancy Identifies Lipid Pathways as a Key Link to Offspring Obesity in Early Childhood
Ellen C. Francis, Katerina Kechris, Randi K. Johnson, Shristi Rawal, Wimal Pathmasiri, …, Xiuxia Du, Thomas Jansson, Dana Dabelea, Susan J. Sumner, Wei Perng
International Journal of Molecular Sciences  ·  11 Jul 2024  ·  doi:10.3390/ijms25147620
Maternal Serum Metabolomics in Mid-Pregnancy Identifies Lipid Pathways as a Key Link to Offspring Obesity in Early Childhood.
Maternal Serum Metabolomics in Mid-Pregnancy Identifies Lipid Pathways as a Key Link to Offspring Obesity in Early Childhood.
Ellen C Francis, Katerina Kechris, Randi K Johnson, Shristi Rawal, Wimal Pathmasiri, …, Xiuxia Du, Thomas Jansson, Dana Dabelea, Susan J Sumner, Wei Perng
International journal of molecular sciences  ·  11 Jul 2024  ·  pubmed:39062861
Longitudinal changes in DNA methylation during the onset of islet autoimmunity differentiate between reversion versus progression of islet autoimmunity.
Longitudinal changes in DNA methylation during the onset of islet autoimmunity differentiate between reversion versus progression of islet autoimmunity.
Patrick M Carry, Lauren A Vanderlinden, Randi K Johnson, Teresa Buckner, Andrea K Steck, …, Ivana V Yang, Tasha E Fingerlin, Oliver Fiehn, Marian Rewers, Jill M Norris
Frontiers in immunology  ·  10 Jun 2024  ·  pmid:38915393
Longitudinal changes in DNA methylation during the onset of islet autoimmunity differentiate between reversion versus progression of islet autoimmunity.
Longitudinal changes in DNA methylation during the onset of islet autoimmunity differentiate between reversion versus progression of islet autoimmunity.
Patrick M Carry, Lauren A Vanderlinden, Randi K Johnson, Teresa Buckner, Andrea K Steck, …, Ivana V Yang, Tasha E Fingerlin, Oliver Fiehn, Marian Rewers, Jill M Norris
Frontiers in immunology  ·  10 Jun 2024  ·  pubmed:38915393
Multi-omics in nasal epithelium reveals three axes of dysregulation for asthma risk in the African Diaspora populations
Multi-omics in nasal epithelium reveals three axes of dysregulation for asthma risk in the African Diaspora populations
Brooke Szczesny, Meher Preethi Boorgula, Sameer Chavan, Monica Campbell, Randi K. Johnson, …, Andrew H. Liu, Carole Ober, Margaret A. Taub, Kathleen C. Barnes, Rasika A. Mathias
Nature Communications  ·  28 May 2024  ·  doi:10.1038/s41467-024-48507-7
Multi-omics in nasal epithelium reveals three axes of dysregulation for asthma risk in the African Diaspora populations.
Multi-omics in nasal epithelium reveals three axes of dysregulation for asthma risk in the African Diaspora populations.
Brooke Szczesny, Meher Preethi Boorgula, Sameer Chavan, Monica Campbell, Randi K Johnson, …, Andrew H Liu, Carole Ober, Margaret A Taub, Kathleen C Barnes, Rasika A Mathias
Nature communications  ·  28 May 2024  ·  pubmed:38806494
Effective interventions in preventing gestational diabetes mellitus: A systematic review and meta-analysis.
Effective interventions in preventing gestational diabetes mellitus: A systematic review and meta-analysis.
Wubet Worku Takele, Kimberly K Vesco, Jami Josefson, Leanne M Redman, Wesley Hannah, …, Alejandra Quinteros, Rachael Taylor, Gebresilasea G Ukke, Shao J Zhou, Siew Lim
Communications medicine  ·  20 Apr 2024  ·  pubmed:38643248
Islet autoantibodies as precision diagnostic tools to characterize heterogeneity in type 1 diabetes: a systematic review.
Islet autoantibodies as precision diagnostic tools to characterize heterogeneity in type 1 diabetes: a systematic review.
Jamie L Felton, Maria J Redondo, Richard A Oram, Cate Speake, S Alice Long, …, Randi K Johnson, Marzhan Urazbayeva, John M Wentworth, Kurt J Griffin, Emily K Sims
Communications medicine  ·  06 Apr 2024  ·  pubmed:38582818
Author Correction: Genotype-stratified treatment for monogenic insulin resistance: a systematic review.
Author Correction: Genotype-stratified treatment for monogenic insulin resistance: a systematic review.
Robert K Semple, Kashyap A Patel, Sungyoung Auh, Rebecca J Brown
Communications medicine  ·  26 Mar 2024  ·  pubmed:38532029
Precision prognostics for cardiovascular disease in Type 2 diabetes: a systematic review and meta-analysis.
Precision prognostics for cardiovascular disease in Type 2 diabetes: a systematic review and meta-analysis.
Abrar Ahmad, Lee-Ling Lim, Mario Luca Morieri, Claudia Ha-Ting Tam, Feifei Cheng, …, Russell J de Souza, Deirdre Kay Tobias, Maria F Gomez, Ronald C W Ma, Nestoras Mathioudakis
Communications medicine  ·  22 Jan 2024  ·  pubmed:38253823
Precision stratification of prognostic risk factors associated with outcomes in gestational diabetes mellitus: a systematic review.
Precision stratification of prognostic risk factors associated with outcomes in gestational diabetes mellitus: a systematic review.
Zhila Semnani-Azad, Romy Gaillard, Alice E Hughes, Kristen E Boyle, Deirdre K Tobias, Wei Perng
Communications medicine  ·  12 Jan 2024  ·  pubmed:38216688

2023

Refining the diagnosis of gestational diabetes mellitus: a systematic review and meta-analysis.
Refining the diagnosis of gestational diabetes mellitus: a systematic review and meta-analysis.
Ellen C Francis, Camille E Powe, William L Lowe, Sara L White, Denise M Scholtens, …, Yeyi Zhu, Cuilin Zhang, Marie-France Hivert, Soo Heon Kwak, Arianne Sweeting
Communications medicine  ·  18 Dec 2023  ·  pubmed:38110524
Genotype-stratified treatment for monogenic insulin resistance: a systematic review.
Genotype-stratified treatment for monogenic insulin resistance: a systematic review.
Robert K Semple, Kashyap A Patel, Sungyoung Auh, Rebecca J Brown
Communications medicine  ·  05 Oct 2023  ·  pubmed:37794082
Impact of individual and environmental factors on dietary or lifestyle interventions to prevent type 2 diabetes development: a systematic review.
Impact of individual and environmental factors on dietary or lifestyle interventions to prevent type 2 diabetes development: a systematic review.
Dhanasekaran Bodhini, Robert W Morton, Vanessa Santhakumar, Mariam Nakabuye, Hugo Pomares-Millan, …, Paul W Franks, Deirdre K Tobias, Jordi Merino, Viswanathan Mohan, Ruth J F Loos
Communications medicine  ·  05 Oct 2023  ·  pubmed:37794109
Utility and precision evidence of technology in the treatment of type 1 diabetes: a systematic review.
Utility and precision evidence of technology in the treatment of type 1 diabetes: a systematic review.
Laura M Jacobsen, Jennifer L Sherr, Elizabeth Considine, Angela Chen, Sarah M Peeling, …, Jessie J Wong, Irl B Hirsch, Richard E Pratley, Lori M Laffel, Chantal Mathieu
Communications medicine  ·  05 Oct 2023  ·  pubmed:37794113
Participant characteristics in the prevention of gestational diabetes as evidence for precision medicine: a systematic review and meta-analysis.
Participant characteristics in the prevention of gestational diabetes as evidence for precision medicine: a systematic review and meta-analysis.
Siew Lim, Wubet Worku Takele, Kimberly K Vesco, Leanne M Redman, Wesley Hannah, …, Alejandra Quinteros, Rachael Taylor, Gebresilasea G Ukke, Shao J Zhou, Jami Josefson
Communications medicine  ·  05 Oct 2023  ·  pubmed:37794119
The use of precision diagnostics for monogenic diabetes: a systematic review and expert opinion.
The use of precision diagnostics for monogenic diabetes: a systematic review and expert opinion.
Rinki Murphy, Kevin Colclough, Toni I Pollin, Jennifer M Ikle, Pernille Svalastoga, …, Sarah E Flanagan, Pål R Njølstad, Liana K Billings, Katharine R Owen, Anna L Gloyn
Communications medicine  ·  05 Oct 2023  ·  pubmed:37794142
Treatment effect heterogeneity following type 2 diabetes treatment with GLP1-receptor agonists and SGLT2-inhibitors: a systematic review.
Treatment effect heterogeneity following type 2 diabetes treatment with GLP1-receptor agonists and SGLT2-inhibitors: a systematic review.
Katherine G Young, Eram Haider McInnes, Robert J Massey, Anna R Kahkoska, Scott J Pilla, …, Andrew P McGovern, Adem Y Dawed, Angus G Jones, Ewan R Pearson, John M Dennis
Communications medicine  ·  05 Oct 2023  ·  pubmed:37794166
Disease-modifying therapies and features linked to treatment response in type 1 diabetes prevention: a systematic review.
Disease-modifying therapies and features linked to treatment response in type 1 diabetes prevention: a systematic review.
Jamie L Felton, Kurt J Griffin, Richard A Oram, Cate Speake, S Alice Long, …, Marzhan Urazbayeva, Stephen Gitelman, John M Wentworth, Maria J Redondo, Emily K Sims
Communications medicine  ·  05 Oct 2023  ·  pubmed:37794169
Precision gestational diabetes treatment: a systematic review and meta-analyses.
Precision gestational diabetes treatment: a systematic review and meta-analyses.
Jamie L Benham, Véronique Gingras, Niamh-Maire McLennan, Jasper Most, Jennifer M Yamamoto, Catherine E Aiken, Susan E Ozanne, Rebecca M Reynolds
Communications medicine  ·  05 Oct 2023  ·  pubmed:37794196
Second international consensus report on gaps and opportunities for the clinical translation of precision diabetes medicine.
Second international consensus report on gaps and opportunities for the clinical translation of precision diabetes medicine.
Deirdre K Tobias, Jordi Merino, Abrar Ahmad, Catherine Aiken, Jamie L Benham, …, Kimberly K Vesco, Tina Vilsbøll, Robert Wagner, Stephen S Rich, Paul W Franks
Nature medicine  ·  05 Oct 2023  ·  pubmed:37794253
Precision subclassification of type 2 diabetes: a systematic review.
Precision subclassification of type 2 diabetes: a systematic review.
Shivani Misra, Robert Wagner, Bige Ozkan, Martin Schön, Magdalena Sevilla-Gonzalez, …, Debashree Ray, Elizabeth Selvin, Jose C Florez, James B Meigs, Miriam S Udler
Communications medicine  ·  05 Oct 2023  ·  pubmed:37798471
DNA Methylation Near DLGAP2 May Mediate the Relationship between Family History of Type 1 Diabetes and Type 1 Diabetes Risk
DNA Methylation Near DLGAP2 May Mediate the Relationship between Family History of Type 1 Diabetes and Type 1 Diabetes Risk
Randi K. Johnson, Amanda J. Ireton, Patrick M. Carry, Lauren A. Vanderlinden, Fran Dong, …, Brigitte Frohnert, Ivana V. Yang, Katerina Kechris, Marian Rewers, Jill M. Norris
Pediatric Diabetes  ·  11 Sep 2023  ·  doi:10.1155/2023/5367637
DNA Methylation Near
DNA Methylation Near
Randi K Johnson, Amanda J Ireton, Patrick M Carry, Lauren A Vanderlinden, Fran Dong, …, Brigitte Frohnert, Ivana V Yang, Katerina Kechris, Marian Rewers, Jill M Norris
Pediatric diabetes  ·  11 Sep 2023  ·  pubmed:38765731
Type 1 Diabetes Prevention: a systematic review of studies testing disease-modifying therapies and features linked to treatment response.
Type 1 Diabetes Prevention: a systematic review of studies testing disease-modifying therapies and features linked to treatment response.
Jamie L Felton, Kurt J Griffin, Richard A Oram, Cate Speake, S Alice Long, …, Marzhan Urazbayeva, Stephen Gitelman, John M Wentworth, Maria J Redondo, Emily K Sims
medRxiv : the preprint server for health sciences  ·  17 Apr 2023  ·  pubmed:37131690
Investigating iron intake in risk of progression from islet autoimmunity to type 1 diabetes: The diabetes autoimmunity study in the young.
Investigating iron intake in risk of progression from islet autoimmunity to type 1 diabetes: The diabetes autoimmunity study in the young.
Sulafa Elhassan, Fran Dong, Teresa Buckner, Randi K Johnson, Jennifer A Seifert, Patrick M Carry, Lauren Vanderlinden, Kathleen Waugh, Marian Rewers, Jill M Norris
Frontiers in immunology  ·  28 Mar 2023  ·  pubmed:37056761
Genome-wide analysis of oxylipins and oxylipin profiles in a pediatric population.
Genome-wide analysis of oxylipins and oxylipin profiles in a pediatric population.
Teresa Buckner, Randi K Johnson, Lauren A Vanderlinden, Patrick M Carry, Alex Romero, …, Tessa Crume, Wei Perng, Katerina Kechris, Marian Rewers, Jill M Norris
Frontiers in nutrition  ·  28 Mar 2023  ·  pubmed:37057071
An Oxylipin-Related Nutrient Pattern and Risk of Type 1 Diabetes in the Diabetes Autoimmunity Study in the Young DAISY
An Oxylipin-Related Nutrient Pattern and Risk of Type 1 Diabetes in the Diabetes Autoimmunity Study in the Young (DAISY)
Teresa Buckner, Randi K. Johnson, Lauren A. Vanderlinden, Patrick M. Carry, Alex Romero, …, Tessa Crume, Wei Perng, Katerina Kechris, Marian Rewers, Jill M. Norris
Nutrients  ·  14 Feb 2023  ·  doi:10.3390/nu15040945
An Oxylipin-Related Nutrient Pattern and Risk of Type 1 Diabetes in the Diabetes Autoimmunity Study in the Young DAISY .
An Oxylipin-Related Nutrient Pattern and Risk of Type 1 Diabetes in the Diabetes Autoimmunity Study in the Young (DAISY).
Teresa Buckner, Randi K Johnson, Lauren A Vanderlinden, Patrick M Carry, Alex Romero, …, Tessa Crume, Wei Perng, Katerina Kechris, Marian Rewers, Jill M Norris
Nutrients  ·  14 Feb 2023  ·  pubmed:36839302
COVID-19 Mortality in the Colorado Center for Personalized Medicine Biobank
COVID-19 Mortality in the Colorado Center for Personalized Medicine Biobank
Amanda N. Brice, Lauren A. Vanderlinden, Katie M. Marker, David Mayer, Meng Lin, …, Jonathan A. Shortt, Alex Romero, Jan T. Lowery, Christopher R. Gignoux, Randi K. Johnson
International Journal of Environmental Research and Public Health  ·  29 Jan 2023  ·  doi:10.3390/ijerph20032368
COVID-19 Mortality in the Colorado Center for Personalized Medicine Biobank.
COVID-19 Mortality in the Colorado Center for Personalized Medicine Biobank.
Amanda N Brice, Lauren A Vanderlinden, Katie M Marker, David Mayer, Meng Lin, …, Jonathan A Shortt, Alex Romero, Jan T Lowery, Christopher R Gignoux, Randi K Johnson
International journal of environmental research and public health  ·  29 Jan 2023  ·  pubmed:36767733
COVID-19 Mortality in the Colorado Center for Personalized Medicine Biobank
COVID-19 Mortality in the Colorado Center for Personalized Medicine Biobank
[no publisher info]  ·  01 Jan 2023  ·  orcid:10.3390/ijerph20032368

2022

Changes in the Coexpression of Innate Immunity Genes During Persistent Islet Autoimmunity Are Associated With Progression of Islet Autoimmunity: Diabetes Autoimmunity Study in the Young DAISY .
Changes in the Coexpression of Innate Immunity Genes During Persistent Islet Autoimmunity Are Associated With Progression of Islet Autoimmunity: Diabetes Autoimmunity Study in the Young (DAISY).
Patrick M Carry, Kathleen Waugh, Lauren A Vanderlinden, Randi K Johnson, Teresa Buckner, …, Andrea K Steck, Ivana Yang, Tasha E Fingerlin, Katerina Kechris, Jill M Norris
Diabetes  ·  01 Sep 2022  ·  pubmed:35724268
Changes in the Coexpression of Innate Immunity Genes During Persistent Islet Autoimmunity Are Associated With Progression of Islet Autoimmunity: Diabetes Autoimmunity Study in the Young DAISY
Changes in the Coexpression of Innate Immunity Genes During Persistent Islet Autoimmunity Are Associated With Progression of Islet Autoimmunity: Diabetes Autoimmunity Study in the Young (DAISY)
Patrick M. Carry, Kathleen Waugh, Lauren A. Vanderlinden, Randi K. Johnson, Teresa Buckner, …, Andrea K. Steck, Ivana Yang, Tasha E. Fingerlin, Katerina Kechris, Jill M. Norris
Diabetes  ·  20 Jun 2022  ·  doi:10.2337/db21-1111
COVID-19 Surveillance in the Biobank at the Colorado Center for Personalized Medicine: Observational Study
COVID-19 Surveillance in the Biobank at the Colorado Center for Personalized Medicine: Observational Study
Randi K Johnson, Katie M Marker, David Mayer, Jonathan Shortt, David Kao, Kathleen C Barnes, Jan T Lowery, Christopher R Gignoux
JMIR Public Health and Surveillance  ·  13 Jun 2022  ·  doi:10.2196/37327
COVID-19 Surveillance in the Biobank at the Colorado Center for Personalized Medicine: Observational Study.
COVID-19 Surveillance in the Biobank at the Colorado Center for Personalized Medicine: Observational Study.
Randi K Johnson, Katie M Marker, David Mayer, Jonathan Shortt, David Kao, Kathleen C Barnes, Jan T Lowery, Christopher R Gignoux
JMIR public health and surveillance  ·  13 Jun 2022  ·  pubmed:35486493
Discovering metabolite quantitative trait loci in asthma using an isolated population
Discovering metabolite quantitative trait loci in asthma using an isolated population
[no publisher info]  ·  01 May 2022  ·  orcid:10.1016/j.jaci.2021.11.002
Discovering metabolite quantitative trait loci in asthma using an isolated population
Discovering metabolite quantitative trait loci in asthma using an isolated population
Randi K. Johnson, Tonya Brunetti, Kevin Quinn, Katrina Doenges, Monica Campbell, …, Margaret A. Taub, Rasika A. Mathias, Nichole Reisdorph, Kathleen C. Barnes, Michelle Daya
Journal of Allergy and Clinical Immunology  ·  01 May 2022  ·  doi:10.1016/j.jaci.2021.11.002
Lipid mediators are detectable in the nasal epithelium and differ by asthma status in female subjects.
Lipid mediators are detectable in the nasal epithelium and differ by asthma status in female subjects.
Randi K Johnson, Jonathan Manke, Monica Campbell, Michael Armstrong, Meher Preethi Boorgula, …, Rasika A Mathias, Kathleen C Barnes, Alvaro Cruz, Nichole Reisdorph, Camila A Figueiredo
The Journal of allergy and clinical immunology  ·  15 Mar 2022  ·  pmid:35304161
Lipid mediators are detectable in the nasal epithelium and differ by asthma status in female subjects.
Lipid mediators are detectable in the nasal epithelium and differ by asthma status in female subjects.
Randi K Johnson, Jonathan Manke, Monica Campbell, Michael Armstrong, Meher Preethi Boorgula, …, Rasika A Mathias, Kathleen C Barnes, Alvaro Cruz, Nichole Reisdorph, Camila A Figueiredo
The Journal of allergy and clinical immunology  ·  15 Mar 2022  ·  pubmed:35304161
COVID-19 Surveillance in the Biobank at the Colorado Center for Personalized Medicine
COVID-19 Surveillance in the Biobank at the Colorado Center for Personalized Medicine
[no publisher info]  ·  21 Feb 2022  ·  orcid:10.1101/2022.02.15.22271018
COVID-19 Surveillance in the Biobank at the Colorado Center for Personalized Medicine
COVID-19 Surveillance in the Biobank at the Colorado Center for Personalized Medicine
Randi K. Johnson, Katie M. Marker, David Mayer, Jonathan Shortt, David Kao, Kathleen C. Barnes, Jan T. Lowery, Christopher R. Gignoux
Cold Spring Harbor Laboratory  ·  21 Feb 2022  ·  doi:10.1101/2022.02.15.22271018

2021

Epigenome-Wide Association Study of Infant Feeding and DNA Methylation in Infancy and Childhood in a Population at Increased Risk for Type 1 Diabetes
Epigenome-Wide Association Study of Infant Feeding and DNA Methylation in Infancy and Childhood in a Population at Increased Risk for Type 1 Diabetes
Elizabeth Walker-Short, Teresa Buckner, Timothy Vigers, Patrick Carry, Lauren A. Vanderlinden, …, Randi K. Johnson, Ivana V. Yang, Katerina Kechris, Marian Rewers, Jill M. Norris
Nutrients  ·  13 Nov 2021  ·  doi:10.3390/nu13114057
Epigenome-Wide Association Study of Infant Feeding and DNA Methylation in Infancy and Childhood in a Population at Increased Risk for Type 1 Diabetes.
Epigenome-Wide Association Study of Infant Feeding and DNA Methylation in Infancy and Childhood in a Population at Increased Risk for Type 1 Diabetes.
Elizabeth Walker-Short, Teresa Buckner, Timothy Vigers, Patrick Carry, Lauren A Vanderlinden, …, Randi K Johnson, Ivana V Yang, Katerina Kechris, Marian Rewers, Jill M Norris
Nutrients  ·  13 Nov 2021  ·  pubmed:34836312
Discovering metabolite quantitative trait loci in asthma using an isolated population.
Discovering metabolite quantitative trait loci in asthma using an isolated population.
Randi K Johnson, Tonya Brunetti, Kevin Quinn, Katrina Doenges, Monica Campbell, …, Margaret A Taub, Rasika A Mathias, Nichole Reisdorph, Kathleen C Barnes, Michelle Daya
The Journal of allergy and clinical immunology  ·  12 Nov 2021  ·  pubmed:34780848
An effective processing pipeline for harmonizing DNA methylation data from Illumina s 450K and EPIC platforms for epidemiological studies.
An effective processing pipeline for harmonizing DNA methylation data from Illumina's 450K and EPIC platforms for epidemiological studies.
Lauren A Vanderlinden, Randi K Johnson, Patrick M Carry, Fran Dong, Dawn L DeMeo, Ivana V Yang, Jill M Norris, Katerina Kechris
BMC research notes  ·  08 Sep 2021  ·  pmid:34496950
An effective processing pipeline for harmonizing DNA methylation data from Illumina s 450K and EPIC platforms for epidemiological studies.
An effective processing pipeline for harmonizing DNA methylation data from Illumina's 450K and EPIC platforms for epidemiological studies.
Lauren A Vanderlinden, Randi K Johnson, Patrick M Carry, Fran Dong, Dawn L DeMeo, Ivana V Yang, Jill M Norris, Katerina Kechris
BMC research notes  ·  08 Sep 2021  ·  pubmed:34496950
A Mediation Approach to Discovering Causal Relationships between the Metabolome and DNA Methylation in Type 1 Diabetes
A Mediation Approach to Discovering Causal Relationships between the Metabolome and DNA Methylation in Type 1 Diabetes
Tim Vigers, Lauren A. Vanderlinden, Randi K. Johnson, Patrick M. Carry, Ivana Yang, …, Laura Pyle, Marian Rewers, Oliver Fiehn, Jill M. Norris, Katerina Kechris
Metabolites  ·  14 Aug 2021  ·  doi:10.3390/metabo11080542
A Mediation Approach to Discovering Causal Relationships between the Metabolome and DNA Methylation in Type 1 Diabetes.
A Mediation Approach to Discovering Causal Relationships between the Metabolome and DNA Methylation in Type 1 Diabetes.
Tim Vigers, Lauren A Vanderlinden, Randi K Johnson, Patrick M Carry, Ivana Yang, …, Laura Pyle, Marian Rewers, Oliver Fiehn, Jill M Norris, Katerina Kechris
Metabolites  ·  14 Aug 2021  ·  pubmed:34436483
Maternal food consumption during late pregnancy and offspring risk of islet autoimmunity and type 1 diabetes
Maternal food consumption during late pregnancy and offspring risk of islet autoimmunity and type 1 diabetes
[no publisher info]  ·  01 Jul 2021  ·  orcid:10.1007/s00125-021-05446-y
Predictors of oxylipins in a healthy pediatric population
Predictors of oxylipins in a healthy pediatric population
[no publisher info]  ·  29 May 2021  ·  orcid:10.1038/s41390-020-1084-2
Phospholipid Levels at Seroconversion Are Associated With Resolution of Persistent Islet Autoimmunity: The Diabetes Autoimmunity Study in the Young.
Phospholipid Levels at Seroconversion Are Associated With Resolution of Persistent Islet Autoimmunity: The Diabetes Autoimmunity Study in the Young.
Patrick M Carry, Lauren A Vanderlinden, Randi K Johnson, Teresa Buckner, Oliver Fiehn, …, Katerina Kechris, Ivana Yang, Tasha E Fingerlin, Marian Rewers, Jill M Norris
Diabetes  ·  16 Apr 2021  ·  pmid:33863802
Phospholipid Levels at Seroconversion Are Associated With Resolution of Persistent Islet Autoimmunity: The Diabetes Autoimmunity Study in the Young.
Phospholipid Levels at Seroconversion Are Associated With Resolution of Persistent Islet Autoimmunity: The Diabetes Autoimmunity Study in the Young.
Patrick M Carry, Lauren A Vanderlinden, Randi K Johnson, Teresa Buckner, Oliver Fiehn, …, Katerina Kechris, Ivana Yang, Tasha E Fingerlin, Marian Rewers, Jill M Norris
Diabetes  ·  16 Apr 2021  ·  pubmed:33863802
Maternal food consumption during late pregnancy and offspring risk of islet autoimmunity and type 1 diabetes
Maternal food consumption during late pregnancy and offspring risk of islet autoimmunity and type 1 diabetes
Randi K. Johnson, Roy Tamura, Nicole Frank, Ulla Uusitalo, Jimin Yang, …, Jorma Toppari, Beena Akolkar, Jeffrey Krischer, Suvi M. Virtanen, Jill M. Norris
Diabetologia  ·  30 Mar 2021  ·  doi:10.1007/s00125-021-05446-y
Maternal food consumption during late pregnancy and offspring risk of islet autoimmunity and type 1 diabetes.
Maternal food consumption during late pregnancy and offspring risk of islet autoimmunity and type 1 diabetes.
Randi K Johnson, Roy Tamura, Nicole Frank, Ulla Uusitalo, Jimin Yang, …, Jorma Toppari, Beena Akolkar, Jeffrey Krischer, Suvi M Virtanen, Jill M Norris
Diabetologia  ·  30 Mar 2021  ·  pubmed:33783586

2020

Metabolomics related nutrient patterns at seroconversion and risk of progression to type 1 diabetes
Metabolomics‐related nutrient patterns at seroconversion and risk of progression to type 1 diabetes
[no publisher info]  ·  09 Nov 2020  ·  orcid:10.1111/pedi.13085
Prediction of the development of islet autoantibodies through integration of environmental, genetic, and metabolic markers
Prediction of the development of islet autoantibodies through integration of environmental, genetic, and metabolic markers
Bobbie‐Jo M. Webb‐Robertson, Lisa M. Bramer, Bryan A. Stanfill, Sarah M. Reehl, Ernesto S. Nakayasu, …, Brigitte I. Frohnert, Jill M. Norris, Randi K. Johnson, Stephen S. Rich, Marian J. Rewers
Journal of Diabetes  ·  16 Aug 2020  ·  doi:10.1111/1753-0407.13093
Prediction of the development of islet autoantibodies through integration of environmental, genetic, and metabolic markers.
Prediction of the development of islet autoantibodies through integration of environmental, genetic, and metabolic markers.
Bobbie-Jo M Webb-Robertson, Lisa M Bramer, Bryan A Stanfill, Sarah M Reehl, Ernesto S Nakayasu, …, Brigitte I Frohnert, Jill M Norris, Randi K Johnson, Stephen S Rich, Marian J Rewers
Journal of diabetes  ·  16 Aug 2020  ·  pubmed:33124145
Metabolomics related nutrient patterns at seroconversion and risk of progression to type 1 diabetes
Metabolomics‐related nutrient patterns at seroconversion and risk of progression to type 1 diabetes
Randi K. Johnson, Lauren A. Vanderlinden, Brian C. DeFelice, Ulla Uusitalo, Jennifer Seifert, …, Tessa Crume, Oliver Fiehn, Marian Rewers, Katerina Kechris, Jill M. Norris
Pediatric Diabetes  ·  09 Aug 2020  ·  doi:10.1111/pedi.13085
Metabolomics-related nutrient patterns at seroconversion and risk of progression to type 1 diabetes.
Metabolomics-related nutrient patterns at seroconversion and risk of progression to type 1 diabetes.
Randi K Johnson, Lauren A Vanderlinden, Brian C DeFelice, Ulla Uusitalo, Jennifer Seifert, …, Tessa Crume, Oliver Fiehn, Marian Rewers, Katerina Kechris, Jill M Norris
Pediatric diabetes  ·  09 Aug 2020  ·  pubmed:32686271
Predictors of oxylipins in a healthy pediatric population
Predictors of oxylipins in a healthy pediatric population
Teresa Buckner, Lauren A. Vanderlinden, Randi K. Johnson, Brian C. DeFelice, Patrick M. Carry, …, Fran Dong, Oliver Fiehn, Michael Clare-Salzler, Marian Rewers, Jill M. Norris
Pediatric Research  ·  29 Jul 2020  ·  doi:10.1038/s41390-020-1084-2
Predictors of oxylipins in a healthy pediatric population.
Predictors of oxylipins in a healthy pediatric population.
Teresa Buckner, Lauren A Vanderlinden, Randi K Johnson, Brian C DeFelice, Patrick M Carry, …, Fran Dong, Oliver Fiehn, Michael Clare-Salzler, Marian Rewers, Jill M Norris
Pediatric research  ·  29 Jul 2020  ·  pubmed:32726799
Gluten intake and risk of thyroid peroxidase autoantibodies in the Diabetes Autoimmunity Study In the Young DAISY .
Gluten intake and risk of thyroid peroxidase autoantibodies in the Diabetes Autoimmunity Study In the Young (DAISY).
Jacqueline A Gardner, Randi K Johnson, Fran Dong, Michelle Hoffman, Andrea K Steck, Brigitte I Frohnert, Marian Rewers, Jill M Norris
Endocrine  ·  10 Jul 2020  ·  pmid:32651851
Gluten intake and risk of thyroid peroxidase autoantibodies in the Diabetes Autoimmunity Study In the Young DAISY .
Gluten intake and risk of thyroid peroxidase autoantibodies in the Diabetes Autoimmunity Study In the Young (DAISY).
Jacqueline A Gardner, Randi K Johnson, Fran Dong, Michelle Hoffman, Andrea K Steck, Brigitte I Frohnert, Marian Rewers, Jill M Norris
Endocrine  ·  10 Jul 2020  ·  pubmed:32651851
Association between change in self-reported sugar intake and a sugar biomarker δ
Association between change in self-reported sugar intake and a sugar biomarker (δ
Martha M Henze, Elizabeth A Bemis, Jennifer A Seifert, Randi K Johnson, Fran Dong, Marian Rewers, Jill M Norris
Journal of nutritional science  ·  11 May 2020  ·  pubmed:32477498
Type 1 diabetes-origins and epidemiology - Authors reply.
Type 1 diabetes-origins and epidemiology - Authors' reply.
[no publisher info]  ·  01 May 2020  ·  orcid:32333871
Type 1 diabetes-origins and epidemiology - Authors reply.
Type 1 diabetes-origins and epidemiology - Authors' reply.
Jill M Norris, Randi K Johnson, Lars C Stene
The lancet. Diabetes & endocrinology  ·  01 May 2020  ·  pmid:32333871
Type 1 diabetes-origins and epidemiology - Authors reply.
Type 1 diabetes-origins and epidemiology - Authors' reply.
Jill M Norris, Randi K Johnson, Lars C Stene
The lancet. Diabetes & endocrinology  ·  01 May 2020  ·  pubmed:32333871
Longitudinal DNA methylation differences precede type 1 diabetes
Longitudinal DNA methylation differences precede type 1 diabetes
Randi K. Johnson, Lauren A. Vanderlinden, Fran Dong, Patrick M. Carry, Jennifer Seifert, …, Brigitte I. Frohnert, Ivana V. Yang, Katerina Kechris, Marian Rewers, Jill M. Norris
Scientific Reports  ·  28 Feb 2020  ·  doi:10.1038/s41598-020-60758-0
DNA methylation near the scp i INS i scp gene is associated with scp i INS i scp genetic variation rs689 and type 1 diabetes in the Diabetes Autoimmunity Study in the Young
DNA methylation near the INS gene is associated with INS genetic variation (rs689) and type 1 diabetes in the Diabetes Autoimmunity Study in the Young
Patrick M. Carry, Lauren A. Vanderlinden, Randi K. Johnson, Fran Dong, Andrea K. Steck, Brigitte I. Frohnert, Marian Rewers, Ivana V. Yang, Katerina Kechris, Jill M. Norris
Pediatric Diabetes  ·  28 Feb 2020  ·  doi:10.1111/pedi.12995
DNA methylation near the INS gene is associated with INS genetic variation rs689 and type 1 diabetes in the Diabetes Autoimmunity Study in the Young.
DNA methylation near the INS gene is associated with INS genetic variation (rs689) and type 1 diabetes in the Diabetes Autoimmunity Study in the Young.
Patrick M Carry, Lauren A Vanderlinden, Randi K Johnson, Fran Dong, Andrea K Steck, Brigitte I Frohnert, Marian Rewers, Ivana V Yang, Katerina Kechris, Jill M Norris
Pediatric diabetes  ·  28 Feb 2020  ·  pubmed:32061050
Longitudinal DNA methylation differences precede type 1 diabetes.
Longitudinal DNA methylation differences precede type 1 diabetes.
Randi K Johnson, Lauren A Vanderlinden, Fran Dong, Patrick M Carry, Jennifer Seifert, …, Brigitte I Frohnert, Ivana V Yang, Katerina Kechris, Marian Rewers, Jill M Norris
Scientific reports  ·  28 Feb 2020  ·  pubmed:32111940
Longitudinal DNA methylation differences precede type 1 diabetes
Longitudinal DNA methylation differences precede type 1 diabetes
[no publisher info]  ·  01 Feb 2020  ·  orcid:10.1038/s41598-020-60758-0
Type 1 diabetes-early life origins and changing epidemiology.
Type 1 diabetes-early life origins and changing epidemiology.
[no publisher info]  ·  27 Jan 2020  ·  orcid:31999944
Type 1 diabetes-early life origins and changing epidemiology.
Type 1 diabetes-early life origins and changing epidemiology.
Jill M Norris, Randi K Johnson, Lars C Stene
The lancet. Diabetes & endocrinology  ·  27 Jan 2020  ·  pmid:31999944
Type 1 diabetes-early life origins and changing epidemiology.
Type 1 diabetes-early life origins and changing epidemiology.
Jill M Norris, Randi K Johnson, Lars C Stene
The lancet. Diabetes & endocrinology  ·  27 Jan 2020  ·  pubmed:31999944
Association between change in self-reported sugar intake and a sugar biomarker δ sup 13 sup C in children at increased risk for type 1 diabetes
Association between change in self-reported sugar intake and a sugar biomarker (δ13C) in children at increased risk for type 1 diabetes
Martha M. Henze, Elizabeth A. Bemis, Jennifer A. Seifert, Randi K. Johnson, Fran Dong, Marian Rewers, Jill M. Norris
Journal of Nutritional Science  ·  01 Jan 2020  ·  doi:10.1017/jns.2020.9

2019

Utilizing cooled liquid chromatography and chemical derivatization to separate and quantify C3-epimers of 25-hydroxy vitamin D and low abundant 1α,25 OH
Utilizing cooled liquid chromatography and chemical derivatization to separate and quantify C3-epimers of 25-hydroxy vitamin D and low abundant 1α,25(OH)
Brian C DeFelice, Theresa L Pedersen, Hanan Shorrosh, Randi K Johnson, Jennifer A Seifert, Jill M Norris, Oliver Fiehn
The Journal of steroid biochemistry and molecular biology  ·  10 Nov 2019  ·  pmid:31715316
Utilizing cooled liquid chromatography and chemical derivatization to separate and quantify C3-epimers of 25-hydroxy vitamin D and low abundant 1α,25 OH
Utilizing cooled liquid chromatography and chemical derivatization to separate and quantify C3-epimers of 25-hydroxy vitamin D and low abundant 1α,25(OH)
Brian C DeFelice, Theresa L Pedersen, Hanan Shorrosh, Randi K Johnson, Jennifer A Seifert, Jill M Norris, Oliver Fiehn
The Journal of steroid biochemistry and molecular biology  ·  10 Nov 2019  ·  pubmed:31715316
Metabolite-related dietary patterns and the development of islet autoimmunity.
Metabolite-related dietary patterns and the development of islet autoimmunity.
[no publisher info]  ·  15 Oct 2019  ·  orcid:31616039
Metabolite-related dietary patterns and the development of islet autoimmunity.
Metabolite-related dietary patterns and the development of islet autoimmunity.
Randi K Johnson, Lauren Vanderlinden, Brian C DeFelice, Katerina Kechris, Ulla Uusitalo, …, Marian Rewers, Beena Akolkar, Jeffrey Krischer, Suvi M Virtanen, Jill M Norris
Scientific reports  ·  15 Oct 2019  ·  pmid:31616039
Metabolite-related dietary patterns and the development of islet autoimmunity.
Metabolite-related dietary patterns and the development of islet autoimmunity.
Randi K Johnson, Lauren Vanderlinden, Brian C DeFelice, Katerina Kechris, Ulla Uusitalo, …, Marian Rewers, Beena Akolkar, Jeffrey Krischer, Suvi M Virtanen, Jill M Norris
Scientific reports  ·  15 Oct 2019  ·  pubmed:31616039
Gluten Intake and Risk of Celiac Disease: Long-Term Follow-up of an At-Risk Birth Cohort.
Gluten Intake and Risk of Celiac Disease: Long-Term Follow-up of an At-Risk Birth Cohort.
Karl Mårild, Fran Dong, Nicolai A Lund-Blix, Jennifer Seifert, Anna E Barón, …, Lars C Stene, Randi K Johnson, Edwin Liu, Marian J Rewers, Jill M Norris
The American journal of gastroenterology  ·  01 Aug 2019  ·  pmid:31082869
Gluten Intake and Risk of Celiac Disease: Long-Term Follow-up of an At-Risk Birth Cohort.
Gluten Intake and Risk of Celiac Disease: Long-Term Follow-up of an At-Risk Birth Cohort.
Karl Mårild, Fran Dong, Nicolai A Lund-Blix, Jennifer Seifert, Anna E Barón, …, Lars C Stene, Randi K Johnson, Edwin Liu, Marian J Rewers, Jill M Norris
The American journal of gastroenterology  ·  01 Aug 2019  ·  pubmed:31082869
The global school-based student health survey as a tool to guide adolescent health interventions in rural Guatemala.
The global school-based student health survey as a tool to guide adolescent health interventions in rural Guatemala.
Randi K Johnson, Molly Lamb, Hillary Anderson, Michelle Pieters-Arroyo, Bradley T Anderson, Guillermo A Bolaños, Edwin J Asturias
BMC public health  ·  22 Feb 2019  ·  pmid:30795754
Gluten Intake and Risk of Islet Autoimmunity and Progression to Type 1 Diabetes in Children at Increased Risk of the Disease: The Diabetes Autoimmunity Study in the Young DAISY .
Gluten Intake and Risk of Islet Autoimmunity and Progression to Type 1 Diabetes in Children at Increased Risk of the Disease: The Diabetes Autoimmunity Study in the Young (DAISY).
Nicolai A Lund-Blix, Fran Dong, Karl Mårild, Jennifer Seifert, Anna E Barón, …, German Tapia, Lars C Stene, Randi K Johnson, Marian J Rewers, Jill M Norris
Diabetes care  ·  22 Feb 2019  ·  pmid:30796108
The global school-based student health survey as a tool to guide adolescent health interventions in rural Guatemala.
The global school-based student health survey as a tool to guide adolescent health interventions in rural Guatemala.
Randi K Johnson, Molly Lamb, Hillary Anderson, Michelle Pieters-Arroyo, Bradley T Anderson, Guillermo A Bolaños, Edwin J Asturias
BMC public health  ·  22 Feb 2019  ·  pubmed:30795754
Gluten Intake and Risk of Islet Autoimmunity and Progression to Type 1 Diabetes in Children at Increased Risk of the Disease: The Diabetes Autoimmunity Study in the Young DAISY .
Gluten Intake and Risk of Islet Autoimmunity and Progression to Type 1 Diabetes in Children at Increased Risk of the Disease: The Diabetes Autoimmunity Study in the Young (DAISY).
Nicolai A Lund-Blix, Fran Dong, Karl Mårild, Jennifer Seifert, Anna E Barón, …, German Tapia, Lars C Stene, Randi K Johnson, Marian J Rewers, Jill M Norris
Diabetes care  ·  22 Feb 2019  ·  pubmed:30796108

2015

Adverse Birth Outcomes in Colorado: Assessing the Impact of a Statewide Initiative to Prevent Unintended Pregnancy
Adverse Birth Outcomes in Colorado: Assessing the Impact of a Statewide Initiative to Prevent Unintended Pregnancy
Lisa M. Goldthwaite, Lindsey Duca, Randi K. Johnson, Danielle Ostendorf, Jeanelle Sheeder
American Journal of Public Health  ·  01 Sep 2015  ·  doi:10.2105/AJPH.2015.302711
Adverse Birth Outcomes in Colorado: Assessing the Impact of a Statewide Initiative to Prevent Unintended Pregnancy.
Adverse Birth Outcomes in Colorado: Assessing the Impact of a Statewide Initiative to Prevent Unintended Pregnancy.
Lisa M Goldthwaite, Lindsey Duca, Randi K Johnson, Danielle Ostendorf, Jeanelle Sheeder
American journal of public health  ·  16 Jul 2015  ·  pubmed:26180990