Ceramides as Dietary Biomarkers

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Biomarkers in Nutrition

Abstract

Ceramides are components of all cell membranes, regulating immune cell function and inflammation. Metabolism-wise, ceramides increase fat use as an energy substrate instead of glucose, thus reducing insulin resistance. In parallel, mitochondrial performance is also reduced, enabling the consumption of more fat per unit of energy production, while disrupting the function of lipolysis enzymes. Increased ceramide concentrations are observed in the adipose tissue of individuals with obesity, while in mice, blocking ceramide production improved insulin sensitivity and prevented atherosclerosis and heart failure. Elevated ceramide concentrations are associated with adiposity and the development of insulin resistance, type 2 diabetes mellitus, and increased cardiovascular disease risk. Interventions with hypocaloric diets, adherence to the Mediterranean diet, low-sugar intake, substitution of unhealthy dietary fats, and supplementation with n-3 fatty acids and vitamin D can reduce ceramide concentrations, improving prognosis.

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Abbreviations

C1P:

Ceramide 1-phosphate

CAD:

Coronary artery disease

CerS:

Ceramide synthetase

CVD:

Cardiovascular disease

EVOO:

Extra-virgin olive oil

FFA:

Free fatty acids

GLUT-4:

Glucose transporter type 4

HELLP:

Hemolysis, elevated liver enzymes, and low platelets

HOMA-IR:

Homeostatic model assessment of insulin resistance

IR:

Insulin resistance

MD:

Mediterranean diet

mRNA:

Messenger RNA

MUFA:

Monounsaturated fatty acids

NAFLD:

Non-alcoholic fatty liver disease

OA:

Oleic acid

PA:

Palmitic acid

PC:

Phosphatidylcholine

PKB:

Akt kinase/protein B

PREDIMED:

PREvención con DIeta MEDiterránea

RCT:

Randomized controlled trial

S1P:

Sphingosine 1-posphate

SFA:

Saturated fatty acid

SPT:

Serine palmitoyl-transferase

T2DM:

Type 2 diabetes mellitus

TAG:

Triacylglyceride

TNFα:

Tumor necrosis factor-α

VD:

Lacto-ovo-vegetarian diet

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Correspondence to Dimitrios G. Goulis .

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Alexandropoulou, I., Lantzanaki-Syrpou, M., Grammatikopoulou, M.G., Goulis, D.G. (2022). Ceramides as Dietary Biomarkers. In: Patel, V.B., Preedy, V.R. (eds) Biomarkers in Nutrition . Biomarkers in Disease: Methods, Discoveries and Applications. Springer, Cham. https://doi.org/10.1007/978-3-031-07389-2_10

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