prenatal rat swimming to explore offspring health benefits

<meta charset="utf8"></head><body>探索母体运动对大鼠后代健康的益处

The Developmental Origins of Health and Disease (DOHaD) concept emerged over the last two decades, which has shown that environmental influences during early development affect the risk of later pathophysiological processes associated with chronic non-communicable disease (NCD), especially diabetes, cardiovascular disease, and some types of cancer1. During the most plastic phase of fetal development, where offspring are exposed to the intrauterine environment, the gene and environment interaction and uteroplacental perfusion are crucial factors of fetal reprogramming2. Previous studies have predominantly utilized animal models to investigate the detrimental effects, such as maternal undernutrition, overnutrition, or obesity during pregnancy, and prenatal exposure to chemicals or hypoxia, on fetal development and long-term phenotypic effects in the offspring3. This produced low birth weight and later growth and produced adverse effects on offspring, including elevated blood pressure, dyslipidemia, and insulin resistance4. Since the rate of overweight and obesity is rapidly increasing among women of reproductive age, establishing effective interventions to prevent the intergenerational transmission of these deleterious maternal disorders is urgently needed, which has an important impact on population health5,6.
Exercise has long been recognized as an important preventive therapeutic for type 2 diabetes, hypertension, and several other diseases7. Exercise during pregnancy has beneficial effects for the mother and confers beneficial effects on offspring, thus reducing the maternal transmission of disease to offspring8. Several years of research have demonstrated exercise&#39;s safety and profound benefits, including substantial reductions in common pregnancy conditions such as gestational diabetes mellitus9,10. Regarding maternal and fetal safety, conducting exercise training and post-nursing protocols is challenging.
David11 et al. described animal exercise models applicable to cardiovascular health research. The three commonly used exercise models, voluntary wheel running, motorized treadmills, and swimming, have advantages and disadvantages. The voluntary wheel running closely mimics the locomotor behavior of rats, enabling them to move according to their circadian rhythm. However, this sort of exercise needs more precise regulation of intensity and duration. The motorized treadmill can control exercise intensity, volume, and duration, but sometimes it needs electric stimulation, which may trigger physical and psychological stress in the animals. Swimming is widely used in rodent studies due to the inherent swimming ability of rats, which can also avoid electric stimulation or mechanical damage to their feet and tails12. In studies on prenatal exercise models13,14, swimming is a commonly used exercise modality. As pregnancy progresses and the abdomen of the rat swells, treadmill and wheel running exercises may cause repeated contact of the abdomen with hard surfaces. In contrast, the water environment in swimming provides buoyancy, reducing the risk of exercise-related injuries for pregnant animals.
This protocol presents the rat breeding methods, how to perform the swimming training during pregnancy, and the post-breeding nursing protocols for pregnant rats after training. This pregnant swimming training model can be applied to a wide range of rat and mouse species, which may thus provide a useful rodent model for future investigation using animal-based models to study the mechanisms regulating the beneficial effects of maternal exercise on offspring health and the benefits of exercise across generations.

<meta charset="utf8"></head><body>作者聚焦：怀孕期间通过母体运动增强大鼠的后代健康

怀孕大鼠的游泳锻炼方案和护理方法

产前大鼠游泳探索后代健康益处

prenatal-rat-swimming-to-explore-offspring-health-benefits

Research

JoVE Journal

Developmental Biology

Prenatal Rat Swimming to Explore Offspring Health Benefits

56 次观看. 首先，获取雌性大鼠进行适应训练。然后，抓住老鼠的尾巴尖端，抬起它，然后将老鼠放入一个装满水的圆形桶中。在整个 15 分钟的适应训练中，每 5 分钟监测一次水温，并加入温水以保持温度。训练结束后，用清水清洗大鼠皮毛，在大约 34 摄氏度的温度下回火，然后用毛巾将大鼠转移到笼子里。使用干手机彻底擦干它的皮毛。每天训练前给?...

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Swimming Exercise Protocol and Care Methods for Pregnant Rats

The developmental origins of health and disease concept highlights the impact of early environments on chronic non-communicable diseases like diabetes, cardiovascular disease, and cancer. Studies using animal models have investigated how maternal factors such as undernutrition, overnutrition, obesity, and exposure to chemicals or hypoxia affect fetal development and offspring health, leading to issues like low birth weight, high blood pressure, dyslipidemia, and insulin resistance. Given the increasing prevalence of overweight and obesity among reproductive-age women, effective interventions are critical. Maternal exercise during pregnancy has emerged as a key intervention, benefiting both mother and offspring and reducing the risk of disease. This study compares the differences of three exercise models on pregnant rats: voluntary wheel running, motorized treadmills, and swimming. Swimming is the most beneficial option due to its safe and controlled intensity levels. This protocol details the rat breeding methods, swimming training during pregnancy, and post-breeding nursing protocols. This model, suitable for various rat and mouse species, is useful for studying the benefits of maternal exercise on offspring health and intergenerational wellness.

Here, we present a protocol to delineate rat breeding methods, swimming training procedures, and post-breeding nursing protocols for pregnant rats after training. This protocol provides an animal model for studying the effects of maternal exercise during pregnancy on offspring and its underlying mechanisms.

The developmental origins of health and disease concept highlights the impact of early environments on chronic non-communicable diseases like diabetes, ...