RGD Reference Report - Regulatory effects of sulfur dioxide on the development of atherosclerotic lesions and vascular hydrogen sulfide in atherosclerotic rats. - Rat Genome Database

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Regulatory effects of sulfur dioxide on the development of atherosclerotic lesions and vascular hydrogen sulfide in atherosclerotic rats.

Authors: Li, Wei  Tang, Chaoshu  Jin, Hongfang  Du, Junbao 
Citation: Li W, etal., Atherosclerosis. 2011 Apr;215(2):323-30. doi: 10.1016/j.atherosclerosis.2010.12.037. Epub 2011 Jan 19.
RGD ID: 401827830
Pubmed: PMID:21300352   (View Abstract at PubMed)
DOI: DOI:10.1016/j.atherosclerosis.2010.12.037   (Journal Full-text)


OBJECTIVE: This study was designed to examine the effect of sulfur dioxide (SO(2)) on atherosclerotic progression and endogenous vascular hydrogen sulfide (H(2)S) in rats with atherosclerosis (AS).
METHODS: Twenty-eight male rats were randomly divided into control, AS and AS+SO(2) groups. Rats were given a single dose of vitamin D(3) and fed a high-cholesterol diet for 8 weeks to induce AS. Plasma lipids, aortic ultrastructure, and atherosclerotic lesions were detected at the termination of experiment. Plasma and aortic SO(2) were measured using high-performance liquid chromatography, and aspartate aminotransferase (AAT) 1 and AAT2 mRNAs were detected by real-time PCR. Plasma and aortic H(2)S levels were determined with a sulfide-sensitive electrode. Cystathionine-γ-lyase (CSE) mRNA and protein expression was detected. Plasma glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) activities, malondialdehyde (MDA) and nitric oxide (NO) contents, inducible NO synthase (iNOS) and eNOS activities, and aortic SOD1 and SOD2 expressions were detected.
RESULTS: Marked atherosclerotic lesions with elevated levels of TC and LDL-C were observed in AS rats. While, there were decreased plasma SO(2) levels and aortic SO(2) production, with a reduced aortic AAT activity in atherosclerotic rats. Plasma GSH-Px and SOD activities were decreased but MDA level increased. Plasma NO content and iNOS activity were also increased. SO(2) donor, however, significantly decreased the atherosclerotic lesions with an increased aortic H(2)S/CSE pathway. It elevated plasma GSH-Px and SOD activities, reduced plasma MDA level, and increased NO/NOS pathway.
CONCLUSIONS: SO(2) has a marked anti-atherogenic effect with an increase in endogenous H(2)S production in rats with AS.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
atherosclerosis treatmentISOGpx3 (Rattus norvegicus)401827830; 401827830 RGD 
atherosclerosis treatmentIEP 401827830 RGD 

Objects Annotated

Genes (Rattus norvegicus)
Gpx3  (glutathione peroxidase 3)

Genes (Mus musculus)
Gpx3  (glutathione peroxidase 3)

Genes (Homo sapiens)
GPX3  (glutathione peroxidase 3)


Additional Information