Cited by 14Lipoproteins and Cardiovascular HealthCholesterol and Lipid MetabolismCancer, Lipids, and Metabolism

New compounds able to control hepatic cholesterol metabolism: Is it possible to avoid statin treatment in aged people?

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Trapani, Laura·2013·World Journal of Hepatology

Abstract

Aging is characterized by the loss of homeostasis that leads to changes in the biochemical composition of tissues, reduced ability to respond adaptively to environmental stimuli, and increased susceptibility and vulnerability to diseases including coronary artery diseases, carotid artery disease and brain vessel disease. Hypercholesterolemia is one of the primary risk factors for these pathologies, whose incidence is highly related to aging. Almost 25% of men and 42% of women older than 65 years have a serum total cholesterol level greater than 240 mg/dL. The mechanisms behind this age-related increase in plasma cholesterol are still incompletely understood, thus, the control of plasma cholesterol content in aged people is more challenging than in adults. In this review the different pharmacological approaches to reduce plasma cholesterol levels, particularly in aged people, will be discussed. In brief, current therapies are mostly based on the prescription of statins (3-hydroxy-3-methylglutaryl-CoA reductase inhibitors) that are pretty effective but that exert several side effects. More attention should be given to potential drug interactions, potential age-related changes in drug pharmacokinetics, adverse effects such as myopathy and competing risks when statins are prescribed to old patients. In combination or in alternative to statin therapy, other agents might be required to reduce low density lipoprotein (LDL) cholesterol levels. Among the available drugs, the most commonly prescribed are those addressed to reduce cholesterol absorption, to modulate lipoprotein lipase activity and bile acid sequestrants: even these pharmacological interventions are not exempt from side effects. The use of antioxidants or organoselenium compounds and the discovery of new proteins able to modulate exclusively LDL receptor recycling such as Proprotein convertase subtilisin kexin 9 and SEC24 offer new pharmacological approaches to selectively reduce the main causes of dyslipidemia.

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Crossref · 10.4254/wjh.v5.i12.676

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  • These changes suggest that low intracellular cholesterol content, as a consequence of HMGCR activity suppression in RTT fibroblasts, induces the classic feedback mechanism with activation of SREBP2 and the increase of its transcriptional targets such as LDLR and HMGCR.

    “These changes suggest that low intracellular cholesterol content, as a consequence of HMGCR activity suppression in RTT fibroblasts, induces the classic feedback mechanism with activation of SREBP2 and the increase of its transcriptional targets such as LDLR (LDL receptor) and HMGCR [23,55,103,104,105,106,107].”

    From Loss of Mevalonate/Cholesterol Homeostasis in the Brain: A Focus on Autism Spectrum Disorder and Rett Syndrome (2019) · cites this paper as [107]

    The Statins section (page not provided) says that HMGR inhibition lowers intracellular cholesterol and that the reduction stimulates SREBP-mediated LDL receptor synthesis. The Introduction (page not provided) also links SREBP to regulation of HMGR transcription. Neither passage addresses RTT fibroblasts, identifies SREBP2 specifically, or reports an increase in HMGCR expression under the claimed conditions. (LLM, conf=0.86)

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Research works printed but not linked: 4

  1. 4 Grundy SM , Cleeman JI, Merz CN, Brewer HB, Clark LT, Hunninghake DB, Pasternak RC, Smith SC, Stone NJ. Implications of recent clinical trials for the National Cholesterol Education Program Adult Treatment Panel III guidelines. Arterioscler Thromb Vasc Biol 2004; 24 : e149-e161 [PMID: 15297292]
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Authors
Trapani, L.
Affiliations
Roma Tre University (IT)
Corresponding author
Trapani, Laura
Venue
World Journal of Hepatology
Published
2013
Volume
5
Issue
12
Pages
676
ISSN
1948-5182 (ISSN-L)
OpenAlex
W2020421168
Cited by
14
References
78
Citations by year
2022: 3 · 2021: 1 · 2019: 2 · 2018: 2 · 2017: 1 · 2015: 2 · 2014: 2
FWCI
0.24
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • World Journal of Hepatology (publishedVersion, cc-by-nc)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Archivio Istituzionale della Ricerca - Università degli Studi del Molise (submittedVersion)
  • Iris (Roma Tre University) (submittedVersion)
Topics
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Lipids, and Metabolism
Keywords
hepatic cholesterol metabolism, statins, aging, hypercholesterolemia, LDL cholesterol, statin adverse effects, drug interactions, pharmacokinetics, cholesterol absorption inhibitors, lipoprotein lipase, bile acid sequestrants, antioxidants, organoselenium compounds, PCSK9, Sec24, LDL receptor recycling, dyslipidemia, older adults

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