Related Experiment Videos
[Effect of carvedilol on lipid peroxidation in patients with stable angina]
Jan Kowalski1, Jan Błaszczyk, Marcin Kowalski
1Katedra Rehabilitacji z Klinika Chorób Wewnetrznych i Rehabilitacji Kardiologicznej UM w Łodzi.
Insights
Carvedilol effectively reduces lipid peroxidation in patients with stable angina. This study shows that carvedilol treatment lowers malondialdehyde (MDA) levels, a marker of oxidative stress, in patients with this cardiovascular condition.
Area of Science:
- Cardiology
- Biochemistry
- Pharmacology
Background:
- Stable angina is associated with increased oxidative stress and lipid peroxidation.
- Malondialdehyde (MDA) is a key biomarker for assessing lipid peroxidation and tissue injury.
Purpose of the Study:
- To investigate the effect of carvedilol on lipid peroxidation in patients with stable angina.
- To evaluate changes in MDA concentration following carvedilol administration.
Main Methods:
- A study involving 30 patients with stable angina treated with escalating doses of carvedilol (12.5-50 mg/day).
- A control group of 12 healthy subjects was included for comparison.
- Plasma and erythrocyte MDA levels were measured before and at 4, 8, and 12 weeks after therapy initiation.
Main Results:
- Patients with stable angina exhibited significantly higher MDA concentrations compared to healthy controls.
- Carvedilol therapy led to a significant decrease in MDA levels at 4, 8, and 12 weeks.
- MDA levels in patients approached those of healthy subjects after 8 and 12 weeks of treatment.
Conclusions:
- Carvedilol demonstrates a significant inhibitory effect on lipid peroxidation in patients with stable angina.
- The findings suggest carvedilol may offer cardioprotective benefits by mitigating oxidative stress.
Abstract:
Effect of carvedilol on lipid peroxidation was investigated in patients with stable angina. The study comprised 30 patients (20 men and 10 women), aged 38-55 years (mean 48.3 years) with stable angina. The patients were administered carvedilol in increasing every four weeks doses: 12.5 mg/day, 25 mg/day, 50 mg/day. The control group consisted of 12 healthy subjects aged 39-49 years (mean 45.7 years). Blood samples were collected before and 4,8 and 12 weeks after therapy in patients and once in control group. Our study has been approved by the local Ethics Committee. MDA concentration in plasma and erythrocytes, which is a recognised indicator of tissue injury caused by reactive oxygen species, was measured according to Placer et al. MDA concentration was significantly higher (p < 0.05) in patients with stable angina than in control group. After 4, 8 and 12 weeks of carvedilol therapy, decrease in MDA concentration was observed in comparison to the initial values. MDA concentration did not differ in patients from that observed in healthy subjects after 8 and 12 weeks of therapy The results of our study have shown that carvedilol inhibits lipid peroxidation in patients with stable angina.
Related Concept Videos
Angina IV: Management
Antianginal Drugs: Calcium Channel Blockers and Ranolazine
CCBs, a diverse class that includes dihydropyridines (nifedipine) and diphenylalkylamines (verapamil and diltiazem), exert their effect by blocking calcium channels in cardiac and smooth muscle cells. This...
Adrenergic Antagonists: ɑ and β-Receptor Blockers
Angina V: Nursing Management
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...
Heart Failure Drugs: β-Blockers