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Background: Lipid-lowering therapy with statins and proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibition are effective strategies in reducing cardiovascular disease risk; however, concerns remain about potential long-term adverse neurocognitive effects.
Objectives: This genetics-based study aimed to evaluate the relationships of long-term PCSK9 inhibition and statin use on neurocognitive outcomes.
Methods: We extracted single-nucleotide polymorphisms in 3-hydroxy-3-methylglutaryl-coenzyme A reductase (HMGCR) and PCSK9 from predominantly European ancestry-based genome-wide association studies summary-level statistics of low-density lipoprotein cholesterol and performed drug-target Mendelian randomization, proxying the potential neurocognitive impact of drug-based PCSK9 and HMGCR inhibition using a range of outcomes to capture the complex facets of cognition and dementia.
Results: Using data from a combined sample of ∼740,000 participants, we observed a neutral cognitive profile related to genetic PCSK9 inhibition, with no significant effects on cognitive performance, memory performance, or cortical surface area. Conversely, we observed several adverse associations for HMGCR inhibition with lowered cognitive performance (beta: -0.082; 95% CI: -0.16 to -0.0080; P = 0.03), reaction time (beta = 0.00064; 95% CI: 0.00030-0.00098; P = 0.0002), and cortical surface area (beta = -0.18; 95% CI: -0.35 to -0.014; P = 0.03). Neither PCSK9 nor HMGCR inhibition impacted biomarkers of Alzheimer's disease progression or Lewy body dementia risk. Consistency of findings across Mendelian randomization methods accommodating different assumptions about genetic pleiotropy strengthens causal inference.
Conclusions: Using a wide range of cognitive function and dementia endpoints, we failed to find genetic evidence of an adverse PCSK9-related impact, suggesting a neutral cognitive profile. In contrast, we observed adverse neurocognitive effects related to HMGCR inhibition, which may well be outweighed by the cardiovascular benefits of statin use, but nonetheless may warrant pharmacovigilance.
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http://dx.doi.org/10.1016/j.jacc.2022.05.041 | DOI Listing |
Biomed Pharmacother
September 2025
Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China. Electronic address:
Immune-mediated necrotizing myopathy (IMNM) is an emerging and severe form of myositis. Most patients experience persistent muscle weakness or recurrent attacks within their lifetime. The previous view suggests that autoimmune and complement activation play a key role in muscle damage, and aggressive immunotherapy may benefit patients.
View Article and Find Full Text PDFJ Biol Chem
September 2025
Chemical Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Department of Pharmacology, Weill Cornell Graduate School of Medical Sciences, New York, NY, USA. Electronic address:
Mevalonate is a precursor for essential metabolites, such as isoprenoids and sterols. Its synthesis starts with HMGCS1 producing HMG-CoA, which is then converted to mevalonate by HMGCR, a target of statins. Cancer cells often upregulate enzymes in the mevalonate pathway (MVP) to meet their metabolic demands, leading to the development of inhibitors targeting several enzymes in this pathway.
View Article and Find Full Text PDFChem Biodivers
September 2025
Department of Life Sciences, Faculty of Science and Engineering, Manchester Metropolitan University, Manchester, UK.
The inhibition of 3-hydroxy-3-methylglutaryl coenzyme-A (HMGCR) activity carries considerable therapeutic significance, prompting the investigation of novel inhibitors to tackle associated health conditions and improve patient care. Seeking non statin scaffolds, we provide the first integrated evaluation of six terpenoids isolated from the brown alga Padina pavonia, expanding the species' chemical repertoire and establishing their activity against HMGCR. We have previously shown the anti-hyperlipidemia activity of P.
View Article and Find Full Text PDFMuscle Nerve
September 2025
Univ Rouen Normandie, INSERM, U1234, F-76000, Rouen, France.
Introduction/aims: Anti-3-hydroxy-3-methylglutaryl-CoA reductase (HMGCR) autoantibodies (aAbs) are pathogenic in immune-mediated necrotizing myopathy (IMNM), partly through complement activation. C5 inhibition did not restore muscle strength in mice or patients with overt IMNM, suggesting additional pathogenic mechanisms. In vitro studies have suggested that anti-HMGCR aAbs might impair myoblast fusion and myotube differentiation, but this has not been investigated in vivo.
View Article and Find Full Text PDFSci Rep
August 2025
School of Pharmacy and Medical Technology, Putian University, Putian, 351100, China.
The total synthesis of compound 1, a chiral diglyceride metabolite present in both humans and fungi, was achieved via a seven-step route, affording the target molecule in 2.33% overall yield. The synthetic strategy involved: (1) selective protection of the terminal hydroxyl group of chiral ketal 2 with a sterically hindered benzyl group, followed by ketal deprotection to yield benzyl ether 4; (2) protection of the terminal hydroxyl group of benzyl ether 4 with a bulky silyl protecting group, and subsequent esterification of the remaining hydroxyl with erucic acid to generate ester 6; (3) removal of the silyl protecting group from ester 6, followed by esterification of the liberated hydroxyl group with pentadecanoic acid to afford ester 8; and (4) selective deprotection of the benzyl group of ester 8 to furnish compound 1.
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