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Histamine H1 and H2 receptors are essential transducers of the integrative exercise training response in humans.

ABSTRACT: Exercise training is a powerful strategy to prevent and combat cardiovascular and metabolic diseases, although the integrative nature of the training-induced adaptations is not completely understood. We show that chronic blockade of histamine H1/H2 receptors led to marked impairments of microvascular and mitochondrial adaptations to interval training in humans. Consequently, functional adaptations in exercise capacity, whole-body glycemic control, and vascular function were blunted. Furthermore, the sustained elevation of muscle perfusion after acute interval exercise was severely reduced when H1/H2 receptors were pharmaceutically blocked. Our work suggests that histamine H1/H2 receptors are important transducers of the integrative exercise training response in humans, potentially related to regulation of optimal post-exercise muscle perfusion. These findings add to our understanding of how skeletal muscle and the cardiovascular system adapt to exercise training, knowledge that will help us further unravel and develop the exercise-is-medicine concept.

SUBMITTER: Van der Stede T 

PROVIDER: S-EPMC8046361 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature

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Histamine H<sub>1</sub> and H<sub>2</sub> receptors are essential transducers of the integrative exercise training response in humans.

Van der Stede Thibaux T   Blancquaert Laura L   Stassen Flore F   Everaert Inge I   Van Thienen Ruud R   Vervaet Chris C   Gliemann Lasse L   Hellsten Ylva Y   Derave Wim W  

Science advances 20210414 16

Exercise training is a powerful strategy to prevent and combat cardiovascular and metabolic diseases, although the integrative nature of the training-induced adaptations is not completely understood. We show that chronic blockade of histamine H<sub>1</sub>/H<sub>2</sub> receptors led to marked impairments of microvascular and mitochondrial adaptations to interval training in humans. Consequently, functional adaptations in exercise capacity, whole-body glycemic control, and vascular function were  ...[more]