Angiotensin-converting enzyme (ACE) inhibitors are important for control of blood pressure and have made a profound impact on patients with diabetes and congestive heart failure. The ACE inhibitors, which act outside the brain, have had minimal impact on dementia of any cause. However, there is now evidence indicating that ACE Inhibitors which act inside the brain, may have the ability to reduce cognitive decline.
Recent observational data from the Cardiovascular Health Study revealed that that centrally active ACE inhibitors did diminish cognitive decline by 65% per year of exposure, an effect that is likely related to the drug’s ability to cross the blood-brain barrier.
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