Alexandra Byrne

ORCID: 0000-0002-4324-3964
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About
Contact & Profiles
Research Areas
  • Gut microbiota and health
  • Fish biology, ecology, and behavior
  • Child Nutrition and Water Access
  • Animal Behavior and Reproduction
  • Diet and metabolism studies
  • Parvovirus B19 Infection Studies
  • Primary Care and Health Outcomes
  • Gastrointestinal motility and disorders
  • Respiratory viral infections research
  • Liver Disease Diagnosis and Treatment
  • Gun Ownership and Violence Research
  • Emergency and Acute Care Studies
  • Healthcare Policy and Management
  • Aquatic Ecosystems and Biodiversity
  • Avian ecology and behavior
  • Primate Behavior and Ecology
  • Polyomavirus and related diseases
  • Tracheal and airway disorders
  • Traumatic Ocular and Foreign Body Injuries
  • Reproductive biology and impacts on aquatic species
  • Ethics and Legal Issues in Pediatric Healthcare
  • China's Global Influence and Migration
  • Clostridium difficile and Clostridium perfringens research
  • Hypothalamic control of reproductive hormones
  • Vaccine Coverage and Hesitancy

Florida International University
2025

Miami Children's Hospital
2022-2025

Washington University in St. Louis
2020-2024

Williams (United States)
2024

William & Mary
2024

University of Florida
2020-2022

Florida College
2021-2022

Stanford University
2016-2019

University of Maryland, Baltimore
2017

Understanding how members of the human gut microbiota prioritize nutrient resources is one component a larger effort to decipher mechanisms defining microbial community robustness and resiliency in health disease. This knowledge foundational for development microbiota-directed therapeutics. To model bacteria glycans gut, germfree mice were colonized with 13 bacterial strains, including seven saccharolytic Bacteroidaceae species. Animals fed Western diet supplemented pea fiber. After...

10.1073/pnas.2311422120 article EN cc-by-nc-nd Proceedings of the National Academy of Sciences 2023-09-21

BACKGROUND The Childhood Opportunity Index (COI) is a multidimensional measure of neighborhood features associated with child health. Our objective was to determine if COI outcomes across the care continuum in children hospitalized for asthma. METHODS This retrospective cohort study using Pediatric Health Information System database asthma aged 2 18 years from May 1 2021 April 30, 2022. Main exposure COI. Outcomes were categorized into 3 periods: prehospitalization (illness severity), during...

10.1542/hpeds.2024-007976 article EN Hospital Pediatrics 2025-02-19

Dopamine regulates reproduction in part by modulating neuronal activity within the hypothalamic-pituitary-gonadal (HPG) axis. Previous studies suggested numerous mechanisms which dopamine exerts inhibitory control over HPG axis, ultimately changing levels of sex steroids that regulate reproductive behaviors. However, it is not known whether these are conserved across vertebrate species. In particular, unknown underlying dopaminergic shared between mammals and teleost fish. mammals, directly...

10.1242/jeb.147637 article EN publisher-specific-oa Journal of Experimental Biology 2016-01-01

Abstract The evolutionary diversification of animal behavior is often associated with changes in the structure and function nervous systems. Such arise either through alterations individual neural components (“mosaically”) or scaling whole brain (“concertedly”). Here we show that evolution a courtship Malawi cichlid fish rapid, extensive, specific orosensory, gustatory centers hindbrain. We find hindbrain volume varies significantly between species build pit (depression) compared to castle...

10.1038/s41598-019-55894-1 article EN cc-by Scientific Reports 2019-12-27

Environmental enteric dysfunction (EED), a small intestinal disorder found at high prevalence in stunted children, is associated with gut mucosal barrier disruption and decreased absorptive capacity due to reduced intact villi. To test the hypothesis that intergenerational transmission of perturbed microbiota contributes undernutrition by inducing EED, we characterized two consortia bacterial strains cultured from duodenal aspirates Bangladeshi children one which induced local systemic...

10.1101/2024.11.01.621574 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2024-11-03

Background: Epstein-Barr virus (EBV) infection is associated with significant morbidity and mortality in renal transplant (RT) recipients. The spectrum of illness ranges from infectious mononucleosis (IM) to post-transplant lymphoproliferative disorder (PTLD). In association clinical signs symptoms, virus-specific serology heterophile antibody tests are widely used confirming the diagnosis IM general population. However, these may have a limited role immunosuppressed RT recipients...

10.3390/medicines7040021 article EN cc-by Medicines 2020-04-22

This article assesses Chinese and Mongolian relations following the withdrawal of Soviet troops. Starting from 'normalisation' in 1989, study follows three different phases development bilateral relationship: inception, acceleration, ambiguity. Currently, impending transformation global foreign policy dynamics places Mongolia at a crossroads, potentially pushing it into precarious geopolitical 'grey zone'. In particular, uncertainty disrupted relative stability that has maintained under its...

10.1080/07075332.2023.2298745 article EN The International History Review 2024-02-16

Objective The American Board of Pediatrics’ (ABP) maintenance certification (MOC) programme seeks to continue educating paediatricians throughout their careers by encouraging lifelong learning and continued improvement. includes four parts, each centring on a different aspect medical practice. Part 4 MOC centres quality improvement (QI). Surveys the ABP suggest that are dissatisfied with aspects part 4, but reasons unclear. This study sought explore factors contributing dissatisfaction...

10.1136/bmjoq-2021-001674 article EN cc-by-nc BMJ Open Quality 2022-05-01

Abstract The evolutionary diversification of animal behavior is often associated with changes in the structure and function nervous systems. Such arise either through alterations individual neural components (“mosaically”) or scaling whole brain (“conceitedly”). Here we show that evolution a specific courtship Malawi cichlid fish, construction mating nests known as bowers, rapid, extensive, orosensory, gustatory centers hindbrain. We find hindbrain volume varies significantly between species...

10.1101/467282 preprint EN bioRxiv (Cold Spring Harbor Laboratory) 2018-11-09

10.1515/jom-2022-0034 article EN cc-by Journal of Osteopathic Medicine 2022-05-05

Gun Safety for ChildrenGuns are the number 1 cause of death children and teenagers in US.Approximately every 40 minutes, a child or teenager is injured by gun.Children who live home with gun at 2 times risk homicide 3 suicide.Increased sales isolation during coronavirus disease 2019 (COVID-19) pandemic increase youth gun-related injuries.Caregivers can prevent injuries talking to their about safety removing guns from safely storing if they present.

10.1001/jamapediatrics.2020.5989 article EN JAMA Pediatrics 2021-01-26
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