ArticleThe Journal of surgical research2013
Nitric oxide differentially affects ERK and Akt in type 1 and type 2 diabetic rats.
Article in The Journal of surgical research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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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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1 citing paper in PubMed, 2 citations in OpenAlex.
- Nitric oxide affects UbcH10 levels differently in type 1 and type 2 diabetic rats.The Journal of surgical research · 2015Article
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6 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundWe have shown that nitric oxide (NO) is more effective at inhibiting neointimal hyperplasia in type 2 diabetic rats than in nondiabetic rats, but is not effective in type 1 diabetic rats. Insulin signaling is mediated by the ERK and Akt pathways, and thus we hypothesized that NO differentially affects ERK and Akt activity in type 1 versus type 2 diabetic rats. MATERIALS AND
methodsTo investigate this hypothesis, we induced type 2 diabetes in Zucker diabetic fatty (ZDF) rats by feeding them Purina 5008 chow. To induce type 1 diabetes, lean Zucker (LZ) rats were injected with streptozotocin (STZ; 60 mg/kg). The carotid artery injury model was performed. Groups included injury and injury + PROLI/NO (20 mg/kg) (n = 6/group).
resultsThree days following injury, all animal models exhibited an increase in pERK levels. Whereas NO reduced pERK levels in LZ and STZ rats, NO had no effect on pERK levels in ZDF rats. Following a similar pattern, NO reduced pAkt levels in LZ and STZ rats but increased pAkt levels in ZDF rats. Fourteen days following injury, NO increased total pERK levels throughout the arterial wall in both the STZ and ZDF rats. These changes were greatest in the adventitia. Interestingly, whereas NO decreased total pAkt levels in LZ and STZ rats, NO increased pAkt levels in ZDF rats. Evaluation of the pERK:pAkt ratio revealed that NO increased this ratio in LZ and STZ rats but decreased the ratio in ZDF rats.
conclusionsWe report that NO differentially affects the expression of pERK and pAkt in type 1 versus type 2 diabetic rats. Given that NO is more effective at inhibiting neointimal hyperplasia in type 2 diabetic animals, the pERK:pAkt ratio may be the best surrogate to predict efficacy.
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