Abstract
AimTo evaluate the effects of aerobic ET on metabolic and cardiovascular parameters in offspring of fructose‐consuming animals, testing the role of cholinergic anti‐inflammatory reflex in this condition by splenectomy.MethodsOffspring of Wistar genitor rats treated with fructose or placebo (water) were divided into 4 groups: sedentary‐water (W), sedentary‐fructose (F), trained‐fructose (TF) and trained‐splenectomized‐fructose (TSF). Fructose overload (10%) was started 30 days after weaning only for the parents and continued until the end of lactation. The offspring received standard feeding and 30 days after weaning the spleen was removed (splenectomy) and the ET was started on treadmill (1h/d, 5d/week, 4 weeks, moderate intensity). After 30 days, the glycemia, blood triglycerides (TG) and insulin tolerance were evaluated. Blood pressure (BP) and heart rate (HR) signals were directly recorded in awake animals through an acquisition system.ResultsAlthough no differences in glycemia and insulin tolerance were observed, the TSF group showed an increase in TG compared to W, F and TF groups (166 ± 12 vs. 100±6; 113±11; 110±4 mg/dL). Regarding cardiovascular changes, the F group had increased systolic blood pressure (SBP) compared to W group (F: 127±4 vs. W: 117±2 mmHg). ET prevented the increase in SBP (TF: 118 ± 2 mmHg); however, this benefit was not observed in the TSF group (129±5 mmHg). In addition, diastolic BP was higher in the TSF group (100±6 mmHg) compared to W and TF groups (91 ± 3 and 87 ± 2 mmHg). There was no difference in HR between the groups studied. BP variability was increased in F group in relation to TSF group.ConclusionThe consumption of fructose by parents induced early BP changes in offspring, which were prevented by exercise training. In addition, splenectomy abolished the cardiovascular benefits of ET in offspring of fructose rats, suggesting participation of the anti‐inflammatory cholinergic reflex in these adaptations.Support or Funding InformationFAPESP: 2018/17183‐4, CNPq (157746/2018‐6) and UNINOVE
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