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Related Experiment Videos

Topical timolol and lipid profile

J M Manoher1, A K Sharma, R Sahai

  • 1Department of Ophthalmology, S.P. Medical College, Bikaner District, Rajasthan.

Indian Journal of Ophthalmology
|June 1, 1995
PubMed
Summary
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Topical timolol significantly decreased high-density lipoprotein (HDL) cholesterol levels, increasing cardiovascular risk. Caution is advised for patients with low HDL or heart disease history when using this glaucoma medication.

Area of Science:

  • Ophthalmology
  • Cardiology
  • Pharmacology

Background:

  • Topical timolol is a common treatment for glaucoma.
  • Its systemic absorption can affect cardiovascular health.
  • Lipid profile changes are a potential concern.

Purpose of the Study:

  • To investigate the impact of topical timolol maleate on patient lipid profiles.
  • To assess changes in high-density lipoprotein (HDL), low-density lipoprotein (LDL), very low-density lipoprotein (VLDL), and triglyceride levels.

Main Methods:

  • Blood samples were collected from 25 patients before and after two months of 0.5% topical timolol maleate instillation.
  • Lipid profiles were analyzed to determine changes in various lipoprotein fractions.

Main Results:

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  • A statistically significant decrease in high-density lipoprotein (HDL) levels was observed after two months (p < 0.02).
  • Increases in low-density lipoprotein (LDL), very low-density lipoprotein (VLDL), and triglyceride levels were noted but did not reach statistical significance.

Conclusions:

  • Topical timolol therapy can lead to a significant reduction in HDL cholesterol.
  • This finding suggests a potential increased risk of myocardial infarction in susceptible patients.
  • Clinicians should exercise caution when prescribing topical timolol to patients with pre-existing low HDL or a history of coronary heart disease.