PXD043588-2

PXD043588 is an original dataset announced via ProteomeXchange.

Title	Perinatal iron restriction is associated with changes in neonatal cardiac function and structure in a sex-dependent manner
Description	Iron deficiency (ID) is common during gestation and in early infancy and can alter developmental trajectories with lasting consequences on cardiovascular health. While the effects of ID and anemia on the mature heart are well documented, comparatively little is known about their effects and mechanisms on offspring cardiac development and function in the neonatal period. Female Sprague-Dawley rats were fed an iron-restricted or iron-replete diet before and during pregnancy. Cardiac function was assessed in a cohort of offspring on postnatal days (PD) 4, 14, and 28 by echocardiography; a separate cohort was euthanized for tissue collection and hearts underwent quantitative shotgun proteomic analysis. ID reduced body weight and increased relative heart weights at all time points assessed, despite recovering from anemia by PD28. Echocardiographic studies revealed unique functional impairments in ID male and female offspring, characterized by greater systolic dysfunction in the former and greater diastolic dysfunction in the latter. Proteomic analysis revealed down-regulation of structural components by ID, as well as enriched cellular responses to stress; in general, these effects were more pronounced in males. ID causes functional changes in the neonatal heart, which may reflect an inadequate or maladaptive compensation to anemia. This identifies systolic and diastolic dysfunction as comorbidities to perinatal ID anemia which may have important implications for both the short- and long-term cardiac health of newborn babies. Furthermore, therapies which improve cardiac output may mitigate the effects of ID on organ development.
HostingRepository	PRIDE
AnnounceDate	2024-10-22
AnnouncementXML	Submission_2024-10-22_07:00:38.974.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Luiz Gustavo de Almeida
SpeciesList	scientific name: Rattus norvegicus (Rat); NCBI TaxID: 10116;
ModificationList	acetylated residue; monohydroxylated residue; deamidated residue; iodoacetamide derivatized residue
Instrument	Orbitrap Fusion Lumos

Revision	Datetime	Status	ChangeLog Entry
0	2023-07-06 17:16:00	ID requested
1	2024-10-03 13:39:52	announced
⏵ 2	2024-10-22 07:00:39	announced	2024-10-22: Updated project metadata.

10.1042/CS20230594;

submitter keyword: Nutrition,Anemia, Hypoxia

Antoine Dufour
contact affiliation	Department of Biochemistry and Molecular Biology, University of Calgary, Alberta, Canada; Department of Physiology and Pharmacology, University of Calgary, Alberta, Canada; The Hotchkiss Brain Institute, University of Calgary, Alberta, Canada; McCaig Institute for Bone and Joint Health, University of Calgary, Alberta, Canada
contact email	antoine.dufour@ucalgary.ca
lab head
Luiz Gustavo de Almeida
contact affiliation	University of Calgary
contact email	luizgustavo.biotec@hotmail.com
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD043588
     1. Label: PRIDE project
     2. Name: Perinatal iron restriction is associated with changes in neonatal cardiac function and structure in a sex-dependent manner