Publications by authors named "Jonathan M. Davis"

Background: The COVID-19 pandemic prompted researchers to develop new ways to design and launch studies and recruit and retain participants. Pregnant women and infants are considered vulnerable populations in research, and families affected by substance use are particularly difficult to recruit and retain. Recruitment for studies involving medical technologies such as MRI can also be difficult due to misconceptions and fear of the technologies.

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Over the past two decades, genomic sequencing (exome and genome) has proven to be critical in providing a faster and more accurate diagnosis as well as tailored treatment plans for a variety of populations. Despite its potential, disparities in access to genomic sequencing persist, predominantly among underrepresented and socioeconomically disadvantaged groups and populations. This inequity stems from factors such as: 1) high costs of sequencing, 2) significant gaps in insurance coverage, 3) limited availability of genetic services in many healthcare institutions and geographic areas, and 4) lack of diversity in genetic research and databases.

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Objective: To examine the effects of opioids during therapeutic hypothermia (TH) on short-term outcomes in neonates with neonatal encephalopathy (NE).

Methods: Multicenter retrospective study of neonates with moderate/severe NE from Jan. 2013-Feb 2021.

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Continuous monitoring of high-risk neonates is essential for the timely management of medical conditions. However, the current reliance on wearable or contact sensor technologies for vital sign monitoring often leads to complications including discomfort, skin damage, and infections which can impede medical management, nursing care, and parental bonding. Moreover, the dependence on multiple devices is problematic since they are not interconnected or time-synchronized, use a variety of different wires and probes/sensors, and are designed based on adult specifications.

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Article Synopsis
  • Olduvai protein domains, linked to the NBPF gene family, show significant expansion in humans and correlate with brain size and neuron numbers in primates, as well as human brain variations like microcephaly and macrocephaly.
  • Research indicates that overexpression of the Olduvai gene may lead to downregulation of mitochondrial functions, particularly affecting the electron transport chain and NADH dehydrogenase activity, based on transcriptome and proteome analyses.
  • The findings suggest that this downregulation could slow development processes in primates, especially humans, potentially resulting in an extended neurogenic period that allows for the production of more neurons and a larger brain size.
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Context: The COVID-19 pandemic led to the closure of prekindergarten to grade 12 schools and an inequitable return to full-time in-person learning.

Objective: To explore how ethnic and racial differences across school districts in Massachusetts correlate with parents' attitudes, beliefs, and trusted sources of information about COVID-19 and mitigation strategies.

Design: An electronic survey was distributed by school administrators to parents and guardians in November and December 2021 using existing school district contact lists and established methods of communication (email in 2 school districts; email and text message in 1 district).

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Importance: Buprenorphine combined with naloxone is commonly used to treat opioid use disorders outside of pregnancy. In pregnancy, buprenorphine alone is generally recommended because of limited perinatal safety data on the combination product.

Objective: To compare perinatal outcomes following prenatal exposure to buprenorphine with naloxone vs buprenorphine alone.

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Introduction: An increased incidence of maternal opioid use disorder (OUD) and neonatal abstinence syndrome (NAS) has prompted recommendations supporting a dyadic approach to care for birthing persons and their infants. However, there are no consensus guidelines outlining how the dyad is clinically defined.

Methods: To examine how the opioid-exposed birthing person-infant dyad has been defined for purposes of data collection and research, a literature review applying the RAND/UCLA Appropriateness Method was conducted.

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Article Synopsis
  • Food insecurity during pregnancy is linked to negative outcomes for mothers and newborns, and opioid use may increase the risk of food insecurity among pregnant mothers.
  • The study analyzed data from 254 mothers, finding that 23% experienced food insecurity, which was notably higher among mothers who used opioids, had public insurance, faced housing instability, and experienced trauma.
  • Mothers facing food insecurity were less likely to receive adequate prenatal care, emphasizing the need for targeted interventions and screenings for at-risk populations, particularly those with opioid exposure.
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Objective: To evaluate outcomes in opioid exposed neonates (OENs) assessed by the Eat, Sleep, Console (ESC) tool compared to the Finnegan Neonatal Abstinence Scoring System (FNASS).

Methods: Retrospective analysis of a statewide database of OENs from 2017 to 2020 with birthing hospitals classified based on the assessment tool used. Four main outcomes were examined using multivariable and Poisson logistic regression models.

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Importance: Inguinal hernia repair in preterm infants is common and is associated with considerable morbidity. Whether the inguinal hernia should be repaired prior to or after discharge from the neonatal intensive care unit is controversial.

Objective: To evaluate the safety of early vs late surgical repair for preterm infants with an inguinal hernia.

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Article Synopsis
  • Clinical trials require standardized tools to assess the efficacy and safety of therapies, facilitating informed decisions on drug registration and prescriptions.
  • The Neonatal Consortium (INC) created the neonatal adverse event severity scale (NAESS) to evaluate adverse events in clinical trials, which has been validated in various studies for consistency and reliability.
  • This paper discusses the development and current impact of the NAESS, including feedback from stakeholders and future improvements to enhance its utility in clinical research.
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  • A study examined the risks of congenital malformations in babies whose mothers used buprenorphine or methadone during early pregnancy to treat opioid use disorder.
  • The research analyzed health care data from over 13,000 pregnancies enrolled in Medicaid from 2000 to 2018, focusing on the effects of these medications in the first trimester.
  • Results indicated that buprenorphine was linked to a lower risk of malformations (50.9 per 1000 pregnancies) compared to methadone (60.6 per 1000 pregnancies), suggesting that buprenorphine may be a safer option during pregnancy.
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Objective: To develop a dyadic-centered framework focused on clinical care, surveillance, and research for birthing persons with opioid use disorder (OUD) and their infants and children.

Study Design: Between February and March 2023, an analysis was conducted within the US Department of Health and Human Services (HHS) of activities directed at opioid-exposed birthing persons and their infants and children (the dyad) to identify: 1) number of activities, stratified by type and 2) characteristics across health and supportive activities that serve the dyad vs birthing persons or infants and children individually. Descriptive and thematic analyses were used to assess quantity and characteristics of fiscal year 2023-2024 activities aggregated across eleven HHS agencies.

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Importance: Early anhydramnios during pregnancy, resulting from fetal bilateral renal agenesis, causes lethal pulmonary hypoplasia in neonates. Restoring amniotic fluid via serial amnioinfusions may promote lung development, enabling survival.

Objective: To assess neonatal outcomes of serial amnioinfusions initiated before 26 weeks' gestation to mitigate lethal pulmonary hypoplasia.

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This study examined the relationship between perceived stigma in healthcare settings during pregnancy and psychological distress and well-being in the postpartum period among individuals who took opioids while pregnant. Analyses included 134 birth mothers of opioid-exposed infants. At 0-1 months postpartum, perceived stigma and psychological distress were measured using the Prenatal Opioid use Perceived Stigma scale and measures from the Patient-Reported Outcome Measurement Information System (PROMIS).

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Importance: Genomic testing in infancy guides medical decisions and can improve health outcomes. However, it is unclear whether genomic sequencing or a targeted neonatal gene-sequencing test provides comparable molecular diagnostic yields and times to return of results.

Objective: To compare outcomes of genomic sequencing with those of a targeted neonatal gene-sequencing test.

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Neonatal abstinence syndrome (NAS) is a constellation of signs of withdrawal occurring after birth following exposure to licit or illicit opioids. Despite significant research and public health efforts, NAS remains challenging to diagnose, predict, and manage due to highly variable expression. Biomarker discovery in the field of NAS is crucial for stratifying risk, allocating resources, monitoring longitudinal outcomes, and identifying novel therapeutics.

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Background: Enrolling children in clinical trials typically requires parental or guardian permission and, when appropriate, child assent. Aligning requirements across jurisdictions would facilitate multisite pediatric trials. Guidance from the International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH) is the best candidate for a global standard but would benefit from additional specification.

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