Lipids & metabolic liver disease

Acute Statin Withdrawal Does not Interfere With the Improvements of a Session of Exercise in Postprandial Metabolism

J Clin Endocrinol MetabPublished Randomised crossover trial

Authors' conclusion

In dyslipidemic individuals, statins reduce blood triglyceride concentrations after a meal, but without limiting fat oxidation. Statins do not interfere with exercise lowering the postprandial insulin that likely promotes fat oxidation. Last, statins do not restrict the rates of plasma incorporation or oxidation of the ingested glucose.

Study context

Population
Individuals with dyslipidemia and metabolic syndrome treated with statins, undergoing a mixed-meal (970 ± 111 kcal, 24% fat, 34% carbohydrate) tolerance testcrossover
Participants
11 individuals
Comparison
Habitual statin treatment vs 96 h statin withdrawal, each with and without a prior session of low-intensity exercise
Methodological detailsrandomized crossover, blinded statin withdrawal
  • Randomized crossover
  • Blinded statin withdrawal

Primary result

Postprandial plasma TG

Reduction

17%

P = 0.015

By group

As reported in the abstract

Further findings

OutcomeExerciseNo exerciseP value
Postprandial plasma insulinExercise vs No exercise241 ± 116 ρmol·L-1301 ± 172 ρmol·L-1P = 0.026
Postprandial plasma glycerol with prior exercise · Exercise vs No exercise · increased with Exercise
P = 0.029
Postprandial fat oxidation rates with prior exercise · Exercise vs No exercise · increased with Exercise
P = 0.024
Insulin sensitivity with exercise · Exercise vs No exercise · not increased
P = 0.614

Postprandial plasma glycerol, free fatty acids and fat oxidation with statins

Statins reduced plasma glycerol (surrogate of whole-body lipolysis) without reducing plasma free fatty acid concentration or fat oxidation

Plasma glucose appearance rates (exogenous and endogenous)

Neither statins nor exercise affected plasma glucose appearance rates from exogenous or endogenous sources

Original publication

Acute Statin Withdrawal Does not Interfere With the Improvements of a Session of Exercise in Postprandial Metabolism. J Clin Endocrinol Metab. Published 11 August 2023. doi:10.1210/clinem/dgad477

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