Related Experiment Video
Updated: Jul 8, 2026

Real-time Evaluation of Absolute, Cytosolic, Free Ca2+ and Corresponding Contractility in Isolated, Pressurized Lymph Vessels
Published on: March 22, 2024
[Effect of nifedipine on organ protection: potential application in patients with aortic aneurysm]
Ryuichi Morishita1, Naruya Tomita
1Division of Clinical Gene Therapy, Osaka University Graduate School of Medicine, Osaka, Japan.
Abstract:
Useful drug therapy for inhibiting the extension of an aortic aneurysm or promoting its involution has not yet been established. Hypertension is a known risk factor for extension of an aortic aneurysm. However, on a cellular level it is believed that activation of nuclear factor (NF)-kappaB and matrix metalloproteinase (MMP) is involved in the extension of an aortic aneurysm. Nifedipine has been evaluated in a rat model of aortic aneurysm and it was found to inhibit activation of MMP and extension of the aortic aneurysm. Nifedipine also inhibited activation of NF-kappaB and these effects were independent of the antihypertensive effect of the drug. With antihypertensive and vasculoprotective effects and inhibitory actions on activation of NF-kappaB and MMP, nifedipine has potential to be a useful option in the drug treatment of patients with aortic aneurysm.
Insights
Nifedipine may help treat aortic aneurysms by inhibiting key cellular pathways involved in their growth. This drug shows potential for reducing aneurysm extension, independent of its blood pressure-lowering effects.
Area of Science:
- Cardiovascular Research
- Pharmacology
- Cellular Biology
Context:
- Aortic aneurysms represent a significant health concern with limited effective drug therapies.
- Hypertension is a known risk factor, but cellular mechanisms involving nuclear factor-kappaB (NF-kappaB) and matrix metalloproteinase (MMP) are implicated in aneurysm progression.
Purpose:
- To evaluate the efficacy of nifedipine in a rat model of aortic aneurysm.
- To investigate the effects of nifedipine on NF-kappaB and MMP activation in the context of aortic aneurysm.
Summary:
- Nifedipine demonstrated an ability to inhibit both MMP activation and aortic aneurysm extension in a rat model.
- The drug also suppressed NF-kappaB activation, with these effects being distinct from its antihypertensive properties.
Impact:
- Nifedipine exhibits potential as a therapeutic agent for aortic aneurysms, offering both antihypertensive and vasculoprotective benefits.
- Its demonstrated inhibition of NF-kappaB and MMP activation suggests a novel mechanism for managing aortic aneurysm progression.
Related Concept Videos
Antianginal Drugs: Nitrates and β-Blockers
Organic nitrates, such as nitroglycerin, play a pivotal role. Once metabolized, they liberate nitric oxide, a molecular marvel. Nitric oxide triggers guanylyl cyclase and augments cGMP production. This biochemical cascade orchestrates the relaxation of vascular smooth muscles, ushering in vasodilation and enhancing coronary blood flow. Administered...
Aneurysm IV: Nursing Management
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System
Aortic Regurgitation IV: Nursing Management
Antihypertensive Drugs: Vasodilators
Angina V: Nursing Management