Liver pathological alterations in fetal rabbit model of congenital diaphragmatic hernia.
congenital diaphragmatic hernia
fetal liver
pediatric translational research
rabbits
Journal
Congenital anomalies
ISSN: 1741-4520
Titre abrégé: Congenit Anom (Kyoto)
Pays: Australia
ID NLM: 9306292
Informations de publication
Date de publication:
May 2022
May 2022
Historique:
revised:
14
11
2021
received:
14
08
2021
accepted:
20
12
2021
pubmed:
19
2
2022
medline:
6
5
2022
entrez:
18
2
2022
Statut:
ppublish
Résumé
To date, fetal liver implication is not a well-understood phenomenon in congenital diaphragmatic hernia (CDH). We evaluated the fetal morphologic changes on liver growth after surgical procedure in CDH experimental model. A diaphragmatic defect at gestational day E25 and tracheal occlusion (TO) at E27 were surgically created in rabbit fetuses. Five experimental groups were assessed: control group, left CDH, right CDH, CDH + TO, and TO alone. Body and organ growth were measured. For histological evaluation of the CDH effect, liver sections were collected. Left-CDH group had livers with increased leukocyte infiltration in comparison with controls (p = 0.02). Increased capillary sinusoid congestion and hepatocyte vacuolation were greater in left-CDH compared with the right-CDH group (p = 0.05). Capillary sinusoid congestion and interstitial edema were more evident in the left-CDH compared with CDH + TO group (p = 0.05). Increases in sinusoid congestion, hepatocyte vacuolation, and interstitial edema were also greater in the CDH + TO compared with controls (p ≤ 0.02). Intrathoracic liver weight was higher in right-CDH compared with left-CDH group (p < 0.001). Total lung weights (TLW) were significantly lower in both left-CDH compared with controls (p < 0.001), CDH + TO (p = 0.01), and TO (p < 0.01) and in right-CDH compared with CDH + TO (p < 0.01) and TO (p < 0.01). Decreased kidney and heart weights were also recorded. Hemodynamics and structural fetal liver changes in laterality were noted in CDH model. Regulation of intrathoracic liver weights seems to be disturbed by the absence of diaphragmic contact. Pulmonary injury is supported by the effect of a first hit, while the growth of internal organs suggests a multisystemic remodeling related to the fetal adaptation.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
105-112Informations de copyright
© 2022 Japanese Teratology Society.
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