What does this research mean for the field?

Nitric oxide-mediated vasodilation to both endogenous and exogenous nitric oxide donors is significantly impaired in patients with non-insulin-dependent diabetes mellitus. Novelty: ClaimNovelty.CONFIRMATORY. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To evaluate whether nitric oxide-dependent vascular relaxation is defective in patients with non-insulin-dependent diabetes mellitus.

September 17, 2026Journal of the American College of CardiologyOpen Access

Impaired nitric oxide-mediated vasodilation in patients with non-insulin-dependent diabetes mellitus

Q: What are the key findings of this study?

Patients with non-insulin-dependent diabetes mellitus had significantly attenuated forearm blood flow responses to methacholine chloride and nitroprusside compared with healthy controls (p<0.005).

Q: What is the clinical evidence from this study?

Study design: Case-Control. Population: Non-insulin-dependent diabetes mellitus (n=44). Intervention: Non-insulin-dependent diabetes mellitus vs. Healthy control subjects. Primary outcome: Forearm blood flow responses to methacholine chloride and nitroprusside (p=<0.005).

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Key result

NIDDM is linked to attenuated forearm blood flow responses to methacholine and nitroprusside versus controls.

P<0.005
n=44

Authors

SWStephen B. WilliamsCedars-Sinai Medical Center JCJorge A. CuscoBrigham and Women's Hospital MRMary-Anne RoddyBrigham and Women's Hospital

Discussion

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Implication

Clinical investigation demonstrates impaired nitric oxide-mediated vasodilation in patients with non-insulin-dependent diabetes mellitus, indicating generalized vascular endothelial dysfunction.

Key Points

To evaluate whether nitric oxide-dependent vascular relaxation is defective in patients with non-insulin-dependent diabetes mellitus.
Assessed vascular responsiveness and blood flow changes in individuals with non-insulin-dependent diabetes mellitus relative to controls.
Measured vasodilatory capacity following stimulation of endogenous nitric oxide pathways and endothelium-independent mechanisms.
Vasodilator responses to endothelium-dependent, nitric oxide-mediated agonists are significantly diminished in patients with non-insulin-dependent diabetes.
Impairment of nitric oxide-mediated vessel relaxation reflects endothelial cell dysfunction in the diabetic vasculature.

Study Design

Type

Case-Control (n=44)

PICO

Population

44 subjects comprising 21 patients with non-insulin-dependent diabetes mellitus and 23 matched healthy controls, all free of hypertension and hypercholesterolemia.

Exposure / Comparator

Non-insulin-dependent diabetes mellitus vs Healthy control subjects

Primary Outcome

Forearm blood flow responses to methacholine chloride and nitroprusside, p=<0.005

Main Result

p-value: p=<0.005

Cite This Study

Williams et al. (1996) conducted a case-control in Non-insulin-dependent diabetes mellitus (n=44). Non-insulin-dependent diabetes mellitus vs. Healthy control subjects was evaluated on Forearm blood flow responses to methacholine chloride and nitroprusside (p=<0.005). Patients with non-insulin-dependent diabetes mellitus had significantly attenuated forearm blood flow responses to methacholine chloride and nitroprusside compared with healthy controls (p<0.005).

synapsesocial.com/papers/6aac043357aede4465be49bd https://doi.org/10.1016/0735-1097(95)00522-6

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Implication

Clinical investigation demonstrates impaired nitric oxide-mediated vasodilation in patients with non-insulin-dependent diabetes mellitus, indicating generalized vascular endothelial dysfunction.

Impaired nitric oxide-mediated vasodilation in patients with non-insulin-dependent diabetes mellitus

Discussion

Member takes

Implication

Key Points

Study Design

PICO

Main Result

Cite This Study

Impaired nitric oxide-mediated vasodilation in patients with non-insulin-dependent diabetes mellitus

Discussion

Member takes

Implication

Key Points

Study Design

PICO

Main Result

Cite This Study

Also Consider

Also Consider