ArticleMolecular and cellular biochemistry2011
Altered expression of the natriuretic peptide system in genetically modified heme oxygenase-1 mice treated with high dietary salt.
Article in Molecular and cellular biochemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed, 6 citations in OpenAlex.
- Salt-Sensitive Ileal Microbiota Plays a Role in Atrial Natriuretic Peptide Deficiency-Induced Cardiac Injury.Nutrients · 2022Article
- Gestational hypertension and the developmental origins of cardiac hypertrophy and diastolic dysfunction.Molecular and cellular biochemistry · 2014Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
Heme oxygenase-1 (HO-1) has been well established as a cytoprotective molecule, and has been shown to exert cardioprotective effects in both hypertension and cardiac hypertrophy. However, the precise mechanism of the cardioprotective effect of HO-1 has yet to be fully elucidated. With the natriuretic peptide system (NPS) as a key player in cardiovascular homeostasis and tissue dynamics, we sought to examine the effect of high dietary salt treatment in genetic models of HO-1 expression, and assessed the expression of the NPS in the left ventricle (LV), to determine if the effects of altered HO-1 expression may be due to modified levels of the NPS. Age-matched 12-week old male HO-1 knockout (HO-1(-/-)) and HO-1 cardiomyocyte-specific transgenic overexpressing (HO-1(Tg)) mice were treated with either normal salt (NS; 0.8%) or high salt (HS; 8.0%) chow for 5 weeks. LV mRNA expression was determined using quantitative real-time PCR. ANP peptide level was measured in the LV and plasma using radioimmunoassay, and LV cyclic 3'-5' guanosine monophosphate level was measured using an enzyme immunoassay kit. HO-1(-/-) fed HS diet had significantly higher left ventricle-to-body weight ratio (LV/BW) compared to HO-1(+/+) mice fed NS diet. HO-1(-/-) mice had significantly reduced expression of the NPS compared to controls, and these mice did not exhibit a salt-induced increase in ANP expression. HS treatment had no noticeable effect on LV/BW in HO-1(Tg) mice compared to controls. HO-1(Tg) mice had significantly higher ANP and BNP expression compared to controls. There were no differences in LV cGMP levels among all genotypes and dietary treatments. HO-1 ablation resulted in significantly lower mRNA expression of the NPS, whereas HO-1 overexpression resulted in higher mRNA expression of the NPS. Both were substantiated by peptide levels as measured by RIA. These data indicate that the detrimental effect of reduced HO-1 expression and the cardioprotective effect of increased HO-1 expression may be due, in part, to altered expression of the NPS.
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