Int J Environ Res Public Health:补充NO前体可以提高老年人的循环维生素D水平,或可用于预防骨质疏松症

2022-06-15 MedSci原创 MedSci原创

钙和镁,连同维生素D和睾酮和皮质醇,是肌肉功能的关键元素,以保持身体健康。

钙和镁,连同维生素D和睾酮和皮质醇,是肌肉功能的关键元素,以保持身体健康。近日,发表于 Int J Environ Res Public Health的一项研究探究了补充NO前体(L-精氨酸、L-瓜氨酸和甜菜根提取物)是否能调节老年人的钙、镁、维生素D和类固醇激素的循环水平。

研究纳入61名易患肌肉疏松症的志愿者(65.1岁,身高164.6厘米,体重71.2公斤),参加了一个为期6周的体育活动计划。参与者被分为四组:一组为安慰剂,其他三组分贝服用L-精氨酸、L-瓜氨酸和甜菜根提取物。通过以下测试评估体能:(a)6分钟内步行的距离(耐力指标);(b)手握力(上身力量指标);(c)步行4米的时间(速度指标);以及(d)进行5次全蹲的时间(下身力量指标)。

结果显示,类固醇激素、维生素D水平和身体素质的关联存在差异。然而,观察到速度和耐力指标之间存在着明显的反相关关系。在补充L-精氨酸和甜菜根的组中观察到较高的循环维生素D水平。

综上所述,该研究结果表明,补充血管扩张剂L-精氨酸和富含硝酸盐的甜菜根提取物,可以提高60岁以上有患肌肉疏松症风险的男性和女性的循环维生素D水平,并遵循体育活动计划。然而,进一步的研究可能需要更长时间的干预,以阐明这种增加是否有利于矿物质的平衡,特别是钙和镁,这是肌肉功能和骨骼代谢的关键(防止骨质疏松症)。

原始出处:

Alfredo Córdova, et al., Nitric-Oxide-Inducing Factors on Vitamin D Changes in Older People Susceptible to Suffer from Sarcopenia. Int J Environ Res Public Health. 2022 May 13;19(10):5938. doi: 10.3390/ijerph19105938.

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    2023-03-06 shizhenshan
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    2022-06-09 july_979
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    2022-06-09 Eleven17
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