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Glycine Supplementation Improves Cognitive Performance in Mexican Older Adults (Glycine)

2026年6月11日 更新者:Brenda Sarahí Beristain Lujano

The purpose of this study was to evaluate the effects of daily glycine supplementation on metabolic health and cognitive performance in older adults. Over a period of six months, participants received 1,000 mg of glycine per day to determine if this amino acid could improve markers of insulin resistance, glucose metabolism, and cognitive functions such as memory and executive tasks.

The research aimed to identify whether this nutritional intervention provides a safe and effective strategy to support healthy aging, focusing on the link between metabolic balance and brain health in the elderly population.

研究概览

详细说明

A 6-month longitudinal study was conducted, featuring a glycine supplementation phase followed by a dietary maintenance period. Cognitive assessments and serum BDNF levels were monitored at baseline, 3 months (T3), and 6 months (T6). Which included the evaluation of fasting glucose, insulin levels, insulin resistance indices, and specific metabolic biomarkers. Concurrently, cognitive functions were evaluated utilizing standardized neuropsychological instruments to measure changes in memory, attention, and executive function. Linear Mixed-Effects Models (LMM) were used to analyze temporal trajectories.

研究类型

介入性

注册 (实际的)

59

阶段

  • 不适用

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习地点

    • State of Mexico
      • México、State of Mexico、墨西哥、01710
        • Escuela Superior de Medicina

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

  • 成人
  • 年长者

接受健康志愿者

是的

描述

Inclusion Criteria:

-Individuals across all nutritional statuses according to Body Mass Index (BMI): underweight, normal weight, overweight, and obesity.

Exclusion Criteria:

  • Clinically relevant comorbidities (requiring patient hospitalization or a diagnosis of any infectious/contagious disease).
  • Consumption of polyphenol-based supplements or herbal blends within the two weeks prior to the study.
  • Mental incapacity.
  • Lack of willingness.
  • Language barriers that prevent adequate understanding or co-operation.

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

  • 主要用途:支持治疗
  • 分配:不适用
  • 介入模型:单组作业
  • 屏蔽:无(打开标签)

武器和干预

参与者组/臂
干预/治疗
实验性的:Glycine group
Participants received an oral daily dose of 1,000 mg of glycine for a duration of 6 months to evaluate metabolic and cognitive outcomes.
Oral supplementation of glycine at a dose of 1,000 mg per day, administered daily over a 6-month period.

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
Brain-Derived Neurotrophic Factor (BDNF) levels
大体时间:Baseline (T0), 3 months (T3) and 6 months (T6)
Serum concentrations of Brain-Derived Neurotrophic Factor (BDNF) measured via ELISA. Unit of Measure: pg/mL
Baseline (T0), 3 months (T3) and 6 months (T6)

次要结果测量

结果测量
措施说明
大体时间
Cognitive performance evaluated by the Cognitive performance was assessed using the Montreal Cognitive Assessment (MoCA).
大体时间:Baseline (T0), 3 months (T3) and 6 months (T6)

Cognitive performance assessed using the Cognitive performance was assessed using the Montreal Cognitive Assessment (MoCA). Total scores range from 0 to 30, where higher scores indicate better cognitive performance.

  • ≥ 26 points: Considered within the normal range.
  • 18 - 25 points: Commonly associated with Mild Cognitive Impairment (MCI).
  • 10 - 17 points: Suggests Moderate Cognitive Impairment.
  • < 10 points: Suggests Severe Cognitive Impairment.
Baseline (T0), 3 months (T3) and 6 months (T6)

其他结果措施

结果测量
措施说明
大体时间
Cognitive performance evaluated byMini-Mental State Examination (MMSE).
大体时间:Baseline (T0), 3 months (T3) and 6 months (T6)

Cognitive performance assessed using the Mini-Mental State Examination (MMSE). Total scores range from o 27 - 30 points: Normal (No cognitive impairment).

  • 24 - 26 points: Mild cognitive impairment / Borderline.
  • 18 - 23 points: Mild to moderate cognitive impairment.
  • 10 - 17 points: Moderate to severe cognitive impairment.
  • 0 - 9 points: Severe cognitive impairment.
Baseline (T0), 3 months (T3) and 6 months (T6)

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

调查人员

  • 首席研究员:Brenda Sarahí BS Beristain Lujano, MSc、Escuela Superior de Medicina IPN

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2024年12月1日

初级完成 (实际的)

2025年6月1日

研究完成 (实际的)

2025年12月1日

研究注册日期

首次提交

2026年6月8日

首先提交符合 QC 标准的

2026年6月8日

首次发布 (实际的)

2026年6月11日

研究记录更新

最后更新发布 (实际的)

2026年6月15日

上次提交的符合 QC 标准的更新

2026年6月11日

最后验证

2026年6月1日

更多信息

与本研究相关的术语

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)?

不

IPD 计划说明

Individual participant data will not be shared to protect the privacy and confidentiality of the participants, in accordance with the informed consent and the guidelines of the Institutional Review Board (IRB).

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.

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