Fatty acids and telomere length.

Purpose Of Review: This narrative review includes the latest clinical and preclinical evidence on fatty acid exposure and telomere length, a widely accepted hallmark of aging.

Recent Findings: A large body of literature focused on n-3 (omega-3) polyunsaturated fatty acids (PUFAs). Observational studies reported beneficial associations with telomere length for self-reported consumption of n-3 PUFA-rich foods; for estimated intake of n-3 PUFAs; and for n-3 PUFAs blood-based biomarkers in most (but not all) studies involving lipidomics, a promising tool in the field.

Bioavailability of EPA and DHA in humans - A comprehensive review.

The bioavailability of long-chain omega-3 fatty acids is a critical yet often overlooked factor influencing their efficacy. This review evaluates the bioavailability of EPA/DHA from acute (single-dose) and chronic human studies, focusing on (a) chemical forms such as triacylglycerols (TAG, natural and re-esterified, rTAG), free fatty acids (FFA), and phospholipids (PL) from sources like fish, krill, and microalgae, and (b) delivery methods like microencapsulation and emulsification. Bioavailability for isolated chemically forms followed the order: FFA > PL > rTAG > unmodified TAG > ethyl esters (EE).

Association of Plasma Omega-3 Levels With Incident Heart Failure and Related Mortalities.

Objective: To investigate the association between plasma omega-3 levels and incident heart failure (HF) and to examine their relationship with total and cardiovascular (CV) mortality among patients with preexisting HF.

Patients And Methods: The UK Biobank is an ongoing prospective cohort study of individuals recruited in the United Kingdom between April 1, 2007, and December 31. 2010.

Omega-3 and Risk of atrial fibrillation: Vagally-mediated double-edged sword.

Objective: Studies regarding effects of omega-3 fatty acids, specifically eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), on risk of atrial fibrillation (AF) have reported discordant results. The aim of this review is to clarify effects of marine omega-3 intake on risk of AF.

Patients And Methods: A PubMed search was performed using terms: atrial fibrillation, omega-3, EPA, DHA, vagal tone.

The Effects of Omega-3 Supplementation on the Omega-3 Index and Quality of Life and Pain Scores in Dogs.

This study in dogs had two objectives: first, to determine whether a daily supplement of marine omega-3 (EPA and DHA) would (1) increase red blood cell EPA + DHA levels (i.e., the Omega-3 Index derived from dried blood spot analysis) and (2) impact health-related measures.

Recent studies confirm the utility of the omega-3 index.

Purpose Of Review: The Omega-3 Index (O3I) was proposed 20 years ago as not only a marker of body omega-3 fatty acid status, but more importantly, as a risk factor for fatal coronary heart disease. The purpose of this review is to document the continued and growing use of this metric in nutrition research.

Recent Findings: Of the 456 citations to the O3I in PubMed, 58 have appeared in the last 18 months.

Cross-sectional analysis of plasma n-3 fatty acid levels and self-reported hearing difficulty in the UK Biobank Cohort.

Background: Disabling hearing loss affects ∼430 million people globally. Fish consumption and long-chain n-3 polyunsaturated fatty acid (PUFA) intake were inversely associated with risk of hearing loss, but the association of plasma n-3 PUFAs and hearing loss is unclear.

Objective: To examine the associations between plasma n-3 PUFA fractions (as % of total fatty acids), i.

Blood biomarkers of trans-fatty acid intake among Nigerian adults in the Federal Capital Territory: a cross-sectional study.

Background: Intake of trans-fatty acids (TFAs) is an established risk factor for cardiovascular disease. In April 2023, Nigeria passed regulations limiting TFA content in foods, fats, and oils, but the current level of TFA exposure in the Nigerian population is unknown.

Objectives: To quantify trans-fatty acid (TFA) biomarkers in dried blood spots from Nigerian adults in the Federal Capital Territory before policy enforcement, establish baseline levels for future evaluations, assess subgroup variations by demographic and socioeconomic factors, and compare TFA levels with data from 30 countries worldwide.

Perspective on the health effects of unsaturated fatty acids and commonly consumed plant oils high in unsaturated fat.

Epidemiological and clinical trial evidence indicates that -6 polyunsaturated fatty acid (PUFA) intake is cardioprotective. Nevertheless, claims that -6 PUFA intake promotes inflammation and oxidative stress prevail. This narrative review aims to provide health professionals with an up-to-date evidence overview to provide the requisite background to address patient/client concerns about oils containing predominantly unsaturated fatty acids (UFA), including MUFA and PUFA.

Blood EPA and DHA status among people living in the United States from 2000 to 2023.

Long-chain omega-3 polyunsaturated fatty acids (n-3 PUFAs), specifically eicosapentaenoic acid (EPA, C20:5n-3) and docosahexaenoic acid (DHA, C22:6n-3), are well-known for their various health benefits, including cardiovascular and cognitive health. In this study we explored the EPA+DHA blood status across different states within the United States. A widely used marker to assess the EPA+DHA status is the omega-3 index - defined as the % of EPA+DHA in red blood cells (RBC) in relation to total fatty acids.

Higher docosahexaenoic acid proportions in blood are inversely associated with the prevalence of prediabetes: Evidence from the UK Biobank.

Prediabetes and type 2 diabetes mellitus are growing global health concerns, predisposing individuals to various vascular complications. Lifestyle modifications, including dietary interventions, offer promising avenues for prevention and management. Using a multivariable-adjusted model, we analyzed the cross-sectional associations between plasma proportions (% of total fatty acids) of omega-3 polyunsaturated fatty acids (n3 PUFA, including total n3 PUFA, docosahexaenoic acid [DHA], non-DHA n3 PUFA), and glycated hemoglobin A1c (HbA1c) as well as the prevalence of prediabetes in a sample from the UK Biobank cohort.

Beneficial effects of linoleic acid on cardiometabolic health: an update.

Linoleic acid (LA), as a part of the wider debate about saturated, omega-6 and omega-3 fatty acids (FAs) and health, continues to be at the center of controversy in the world of fatty acid research. A robust evidence base, however, demonstrates that higher intakes and blood levels of LA are associated with improved cardiometabolic health outcomes. LA lowers total and low-density lipoprotein cholesterol when compared with saturated fatty acids and carbohydrates.

Pre-pregnancy overweight or obesity moderates the association between prenatal maternal depressive symptoms and infant cord blood omega-3 levels.

Background: Empirical evidence has demonstrated associations between pre-pregnancy obesity and perinatal maternal depressive symptoms. Omega-3 is an essential fatty acid derived from dietary sources that is critical for fetal brain development. Pre-pregnancy obesity is associated with higher omega-3 intake, but a weaker association between dietary intake and respective maternal and cord blood omega-3 levels.

Omega-3 blood biomarkers relate to brain glucose uptake in individuals at risk of Alzheimer's disease dementia.

Introduction: Brain glucose hypometabolism is a preclinical feature of Alzheimer's disease (AD). Dietary omega-3 fatty acids promote brain glucose metabolism, but clinical research is incipient. Circulating omega-3s objectively reflect their dietary intake.

Eicosapentaenoic acid and Arachidonic acid Protection Against Left Ventricle Pathology: the Multi-Ethnic Study of Atherosclerosis.

Background: We have shown that ω3 polyunsaturated fatty acids (PUFAs) reduce risk for heart failure, regardless of ejection fraction status. Ventricular remodeling and reduced ventricular performance precede overt hear failure, however there is little insight into how PUFAs contribute to maladaptive signaling over time. PUFAs are agonists for regulatory activity at g-protein coupled receptors such as Ffar4, and downstream as substrates for monooxygenases (e.

Association of Plasma n-3 Polyunsaturated Fatty Acid Levels and the Prevalence of Frailty in Older Adults: A Cross-Sectional Analysis of UK Biobank.

Background: Circulating levels of n-3 polyunsaturated fatty acids (PUFAs) have been associated with frailty among Koreans (a population with a high intake of fish), but whether this association exists in Western populations with low fish intake is unknown. The present study examined the hypothesis that the prevalence of frailty was inversely associated with plasma levels of n-3 PUFAs, with the intake of oily fish, and with fish oil supplementation in older adults in the United Kingdom.

Methods: UK Biobank including 79 330 adults aged ≥65 years with dietary data, and 18 802 participants with plasma fatty acid data were used.

Effect of six month's treatment with omega-3 acid ethyl esters on long-term outcomes after acute myocardial infarction: The OMEGA-REMODEL randomized clinical trial.

Background: Omega-3 polyunsaturated fatty acids (O3-FA) have been shown to reduce inflammation and adverse cardiac remodeling after acute myocardial infarction (AMI). However, the impact of O3-FA on long-term clinical outcomes remains uncertain.

Aims: To investigate the impact of O3-FA on adverse cardiac events in long-term follow up post AMI in a pilot-study.

A Genome-Wide Interaction Study of Erythrocyte ω-3 Polyunsaturated Fatty Acid Species and Memory in the Framingham Heart Study Offspring Cohort.

Background: Cognitive decline, and more specifically Alzheimer's disease, continues to increase in prevalence globally, with few, if any, adequate preventative approaches. Several tests of cognition are utilized in the diagnosis of cognitive decline that assess executive function, short- and long-term memory, cognitive flexibility, and speech and motor control. Recent studies have separately investigated the genetic component of both cognitive health, using these measures, and circulating fatty acids.

A Walnut-Enriched Diet for 2 Years Changes the Serum Oxylipin Profile in Healthy Older Persons.

Background: Oxylipins are products derived from polyunsaturated fatty acids (PUFAs) that play a role in cardiovascular disease and aging. Fish oil-derived n-3 PUFAs promote the formation of anti-inflammatory and vasodilatory oxylipins; however, there are little data on oxylipins derived from α-linolenic acid (C18:3n-3), the primary plant-derived n-3 PUFA. Walnuts are a source of C18:3n-3.