ArticleEndocrine connections2024
The distinct hepatic metabolic profile and relation with impaired liver function in congenital isolated growth hormone-deficient rats.
Article in Endocrine connections, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 5 citations in OpenAlex.
- The measurement, regulation and biological activity of FAHFAs.Nature chemical biology · 2025Review
- The association between metabolite profiles and impaired bone microstructure in adult growth hormone deficient rats.BMC musculoskeletal disorders · 2024Article
- From Hypothalamic Obesity to Metabolic Dysfunction-Associated Steatotic Liver Disease: Physiology Meets the Clinics via Metabolomics.Metabolites · 2024Article
- Potential treatment of glutathione in bullfrogs with abnormal hepatic lipid metabolism revealed by hepatic lipid metabolism and serum metabolomics analysis.Frontiers in cellular and infection microbiology · 2024Article
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Authors and funding
9 authors at 1 institution in 1 country.
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Abstract
Objective: Patients with growth hormone deficiency (GHD) with inadequate growth hormone levels are often correlated with nonalcoholic fatty liver disease (NAFLD). However, the potential mechanism of how GHD influences liver function remains obscure. In the present study, we aim to perform hepatic metabolomics in Lewis dwarf rats, which were the standard congenital isolated GH-deficient rat, to evaluate the characterizations of hepatic metabolic profiles and explore their relations with liver functions. Methods: Lewis dwarf homozygous (dw/dw) rats at 37 weeks (five females and five males), and Lewis dwarf heterozygous (dw/+) rats at 37 weeks (five females and five males) were analyzed in our study. Body lengths and weights, liver weights, serum alanine transaminase (ALT), and serum aspartate transaminase (AST) were measured. ELISA and RT-qPCR were used to assess IGF-1 levels in serum and liver, respectively. The non-targeted metabolomics was performed in the livers of dw/+ and dw/dw rats. Differential metabolites were selected according to the coefficient of variation (CV), variable importance in the projection (VIP) > 1, and P < 0.05. Hierarchical clustering of differential metabolites was conducted, and the KEGG database was used for metabolic pathway analysis. Results: The body weights, body lengths, liver weights, and IGF-1 levels in the serum and liver of dw/dw rats were significantly decreased compared with dw/+ rats. Dw/dw rats exhibited more obvious hepatic steatosis accompanied by higher serum ALT and AST levels. Hepatic metabolomics showed that a total of 88 differential metabolites in positive ion mode, and 51 metabolites in negative ion mode were identified. Among them, lysophosphatidylcholine (LPC) 16:2, LPC 18:3, LPC 22:6, fatty acid esters of hydroxy fatty acids (FAHFA)18:1 were significantly decreased, while palmitoyl acid, dehydrocholic acid, and 7-ketolithocholic acid were significantly increased in dw/dw rats compared with dw/+ rats. These seven differential metabolites were significantly associated with phenotypes of rats. Finally, KEGG pathway analysis showed that the arginine and proline metabolism pathway and bile secretion pathway were mainly clustered. Conclusion: Lewis dw/dw rats with congenital isolated growth hormone deficiency (IGHD) showed liver steatosis and abnormal liver function, which could be potentially associated with the distinctive hepatic metabolic profiles.
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