Publications by authors named "Ingrid Holm"

Purpose: Genomic sequencing of newborns (NBSeq) can initiate disease surveillance and therapy for children, and may identify at-risk relatives through reverse cascade testing. We explored genetic risk communication and reverse cascade testing among families of newborns who underwent exome sequencing and had a risk for autosomal dominant disease identified.

Methods: We conducted semi-structured interviews with parents of newborns enrolled in the BabySeq Project who had a pathogenic or likely-pathogenic (P/LP) variant associated with an autosomal dominant (AD) childhood- and/or adult-onset disease returned.

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Background And Objectives: Many genetic conditions present in the NICU, where a diagnostic evaluation is pursued. However, understanding of the impact of a genetic diagnosis on clinical outcomes and health-related quality of life for these infants remains incomplete. We therefore evaluated parent-reported outcomes complemented by clinical outcomes measures over one year for a cohort of infants in the NICU undergoing genetic evaluation.

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Genomic sequencing has been proposed as a strategy to expand newborn screening. Perspectives on genomic newborn screening from parents of diverse racial, ethnic, and socioeconomic backgrounds are needed to shape equitable implementation of this modality. We conducted 20 semi-structured interviews (15 English, 5 Spanish) and seven focus groups (4 English, 3 Spanish) with parents from diverse backgrounds to assess their perspectives regarding which disorders and variants might be screened, data privacy, and barriers to pursuing specialized care.

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Purpose: It is essential that studies of genomic sequencing (GS) in newborns and children include individuals from under-represented racial and ethnic groups (URG) to ensure future applications are equitably implemented. We conducted interviews with parents from URG to better understand their perspectives on GS research, develop strategies to reduce barriers to enrollment, and facilitate research participation.

Methods: Semi-structured interviews with 50 parents from URG.

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Efforts to implement and evaluate genome sequencing (GS) as a screening tool for newborns and infants are expanding worldwide. The first iteration of the BabySeq Project (2015-2019), a randomized controlled trial of newborn sequencing, produced novel evidence on medical, behavioral, and economic outcomes. The second iteration of BabySeq, which began participant recruitment in January 2023, examines GS outcomes in a larger, more diverse cohort of more than 500 infants up to one year of age recruited from pediatric clinics at several sites across the United States.

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Article Synopsis
  • DNA replication is crucial for cell division and maintaining genetic stability, with the RFC complex playing a key role by loading important proteins onto DNA.
  • While RFC1's involvement in certain disorders is recognized, the impact of RFC2-5 subunits, particularly RFC4, on human genetic diseases remains under-researched.
  • Our study identifies harmful variants in RFC4 linked to a new disorder marked by muscle weakness and hearing issues, showing how these variants disrupt RFC complex formation and ultimately affect DNA replication and cell cycle processes.
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  • Preeclampsia is a serious pregnancy complication linked to high blood pressure after 20 weeks, causing significant health risks for mothers and babies.
  • The study investigated the genetic relationship between blood pressure traits and preeclampsia using polygenic scores (PGS) across different races, using data from health databases like Vanderbilt and Penn Medicine.
  • Although the analysis showed that these genetic factors were associated with preeclampsia, adding PGS to standard clinical predictions did not enhance the ability to predict the condition.
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Background And Objectives: Many genetic conditions present in the neonatal intensive care unit (NICU), where a diagnostic evaluation is pursued. However, understanding of the impact of a genetic diagnosis on clinical outcomes and health-related quality of life for these infants remains incomplete. We therefore evaluated parent-reported outcomes complemented by clinical outcomes measures over one year for a cohort of infants in the NICU undergoing genetic evaluation.

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The differential performance of polygenic risk scores (PRSs) by group is one of the major ethical barriers to their clinical use. It is also one of the main practical challenges for any implementation effort. The social repercussions of how people are grouped in PRS research must be considered in communications with research participants, including return of results.

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  • Tubulin is a key component of the cytoskeleton and has various isotypes in animals, but it's unclear how these isotypes influence microtubule structures in different cell types.
  • Research on 12 patients with primary ciliary dyskinesia and mouse models uncovered variants in the tubulin isotype that disrupted the formation of centrioles and cilia, impacting microtubule dynamics.
  • The study identified different variants causing distinct effects on tubulin interactions, allowing for the classification of patients into three types of ciliopathic diseases, highlighting the unique roles of specific tubulin isotypes in cellular functions.
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Rapid advances in the screening, diagnosis, and treatment of genetic disorders have increased the number of conditions that can be detected through universal newborn screening (NBS). However, the addition of conditions to the Recommended Uniform Screening Panel (RUSP) and the implementation of nationwide screening has been a slow process taking several years to accomplish for individual conditions. Here, we describe web-based tools and resources developed and implemented by the newborn screening translational research network (NBSTRN) to advance newborn screening research and support NBS stakeholders worldwide.

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  • * In a study involving 16,218 adults, those with actionable genetic findings underwent significantly more healthcare services in the year following result disclosure compared to before and to those without such findings.
  • * The annual healthcare costs for individuals with pathogenic findings nearly doubled, increasing from an average of $162 to $343, indicating a notable financial impact on healthcare payors.
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Objective: Developing targeted, culturally competent educational materials is critical for participant understanding of engagement in a large genomic study that uses computational pipelines to produce genome-informed risk assessments.

Materials And Methods: Guided by the Smerecnik framework that theorizes understanding of multifactorial genetic disease through 3 knowledge types, we developed English and Spanish infographics for individuals enrolled in the Electronic Medical Records and Genomics Network. Infographics were developed to explain concepts in lay language and visualizations.

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Purpose: Advances in genomic research have facilitated rare disease diagnosis for thousands of individuals. Unfortunately, the benefits of advanced genetic diagnostic technology are not distributed equitably among the population, as has been seen in many other health care contexts. Quantifying and describing inequities in genetic diagnostic yield is inherently challenging due to barriers to both clinical and research genetic testing.

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Two major goals of the Electronic Medical Record and Genomics (eMERGE) Network are to learn how best to return research results to patient/participants and the clinicians who care for them and also to assess the impact of placing these results in clinical care. Yet since its inception, the Network has confronted a host of challenges in achieving these goals, many of which had ethical, legal, or social implications (ELSIs) that required consideration. Here, we share impediments we encountered in recruiting participants, returning results, and assessing their impact, all of which affected our ability to achieve the goals of eMERGE, as well as the steps we took to attempt to address these obstacles.

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A definitive, authoritative approach to evaluate the causes of unexpected, and ultimately unexplained, pediatric deaths remains elusive, relegating final conclusions to diagnoses of exclusion in the vast majority of cases. Research into unexplained pediatric deaths has focused primarily on sudden infant deaths (under 1 year of age) and led to the identification of several potential, albeit incompletely understood, contributory factors: nonspecific pathology findings, associations with sleep position and environment that may not be uniformly relevant, and the elucidation of a role for serotonin that is practically difficult to estimate in any individual case. Any assessment of progress in this field must also acknowledge the failure of current approaches to substantially decrease mortality rates in decades.

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  • Newborn genomic sequencing (NBSeq) has significant potential for identifying medically relevant genetic information, but data on how to act on these findings is currently limited.
  • In a clinical trial involving 127 healthy infants and 32 in intensive care, 17 infants (10.7%) were found to have unexpected genetic disease risks (uMDRs), which were evaluated for their actionability using a specialized metric.
  • All identified uMDRs were deemed moderately to highly actionable, leading to follow-up medical actions, including family screenings and lifesaving interventions, indicating that large-scale sequencing of newborns could greatly impact healthcare for infants and their families.
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Polygenic risk scores (PRS) have potential to improve health care by identifying individuals that have elevated risk for common complex conditions. Use of PRS in clinical practice, however, requires careful assessment of the needs and capabilities of patients, providers, and health care systems. The electronic Medical Records and Genomics (eMERGE) network is conducting a collaborative study which will return PRS to 25,000 pediatric and adult participants.

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  • Psychiatry is leveraging digital phenotyping and AI/ML tools to analyze mental health by tracking various real-world data from participants, such as location, online activity, and health metrics.
  • Current ethical guidelines for sharing individual research results (IRRs) are insufficient to manage the sensitive data generated in this research.
  • An interdisciplinary expert group has created a new framework addressing the ethical, legal, and social issues of returning IRRs in digital phenotyping studies, which can also be applied to other medical research fields.
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Importance: Newborn genome sequencing (NBSeq) can detect infants at risk for treatable disorders currently undetected by conventional newborn screening. Despite broad stakeholder support for NBSeq, the perspectives of rare disease experts regarding which diseases should be screened have not been ascertained.

Objective: To query rare disease experts about their perspectives on NBSeq and which gene-disease pairs they consider appropriate to evaluate in apparently healthy newborns.

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  • Advances in genomic research have improved the diagnosis of rare, early-onset diseases, but access to this technology is uneven, with many facing barriers to genetic testing.
  • The Rare Genomes Project (RGP) seeks to offer genome sequencing directly to individuals with undiagnosed rare diseases, aiming to reduce obstacles tied to healthcare access.
  • Despite efforts to equalize access, the participant demographic remains skewed toward non-disadvantaged and predominantly white individuals; thus, RGP is developing strategies to diversify enrollment to promote equity in genetic diagnosis and research.
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In sudden unexplained death in pediatrics (SUDP) the cause of death is unknown despite an autopsy and investigation. The role of copy number variations (CNVs) in SUDP has not been well-studied. Chromosomal microarray (CMA) data are generated for 116 SUDP cases with age at death between 1 and 28 months.

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  • * A study involving over 8,500 women evaluated the relationship between polygenic risk scores related to blood pressure and the occurrence of preeclampsia, revealing that certain genetic traits are associated with higher preeclampsia rates, particularly in different racial groups.
  • * Despite finding genetic links, incorporating these polygenic risk scores into clinical prediction models did not enhance their ability to predict preeclampsia, suggesting that while genetics matter, other factors are also at play in determining risk.
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  • The study aims to assess the risk of common diseases by considering clinical, monogenic, and polygenic factors, which may be reflected in an individual's family history.
  • The eMERGE network is enrolling 25,000 individuals in a prospective study to create and return a comprehensive risk assessment report (GIRA) that includes various genetic risk factors and care recommendations.
  • The GIRA report provides actionable guidelines for health care based on genetic data, highlighting the importance of integrating genetic risk assessment into routine health care practices.
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The electronic MEdical Records and GEnomics (eMERGE) consortium will return risk reports pertaining to specific diseases, a key component of which will be polygenic risk scores (PRS), to 25,000 participants, including 5000 children. Understanding comprehension and the perceived value of these PRS-based reports among parents will be critical for effective return of results in children. To address this issue, we conducted semi-structured interviews with 40 African American and Hispanic parents at The Children's Hospital of Philadelphia and Boston Children's Hospital.

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