分支链氨基酸,氨酸和甲状腺功能:基于核磁共振 (NMR) 的横截面方法来自ELSA-巴西
Carolina Castro Porto Silva Janovsky1,2, Vandrize Meneghini1, William Tebar1
1Center for Clinical and Epidemiological Research, University Hospital, University of São Paulo, São Paulo 05508-000, Brazil.
Metabolites
|August 28, 2024
概括
甲状腺功能会影响氨基酸水平,特别是分支链氨基酸 (BCAA) 和氨酸. 亚临床甲状腺功能低下症与异黄素和氨酸有积极的关联.
科学领域:
- 内分泌学和新陈代谢学
- 生物化学 生物化学
背景情况:
- 甲状腺激素与氨基酸代谢,特别是分支链氨基酸 (BCAA) 和氨酸之间的相互作用尚未得到充分理解.
- 甲状腺激素在调节代谢过程中起着至关重要的作用,影响蛋白质的合成和降解.
研究的目的:
- 在一般人群中调查甲状腺功能参数与BCAA (氨酸,异氨酸,氨酸) 和氨酸水平之间的关联.
- 探索这些协会在euthyroid个体,和那些亚临床甲状腺功能障碍和甲状腺功能障碍.
主要方法:
- 利用了ELSA-巴西队列研究中的4098名参与者的数据.
- 评估甲状腺刺激激素 (TSH),自由T4 (FT4) 和自由T3 (FT3) 水平,以及FT4:FT3比率.
- 使用自动化NMR平台量化氨基酸水平,并使用皮尔森系数和线性回归模型分析相关性.
主要成果:
- 较高的TSH水平与增加的阿拉宁相关.
- FT4水平与异黄素相反相关,而FT3水平与氨酸和氨酸正相关.
- 亚临床甲状腺功能低下症与更高的异黄素和氨酸水平一致相关.
结论:
- 甲状腺功能,包括TSH,FT4,FT3和它们的比率,与BCAA和氨酸水平有关.
- 亚临床甲状腺功能低下症显示与异黄素和氨酸有显著的积极关联.
- 需要进一步的研究来阐明关联甲状腺状况和氨基酸代谢的潜在机制.
相关概念视频
Applications Of NMR In Biology
3.7K
Nuclear magnetic resonance (NMR) spectroscopy is a very valuable analytical technique for researchers. It has been used for more than 50 years as an analytical tool. F. Bloch and E. Purcell formulated NMR in 1946 and won the 1952 Nobel Prize in Physics for their work. Biological macromolecules such as proteins, nucleic acids, lipids, and organic molecules including pharmaceutical compounds, can be studied using this versatile tool that exploits the magnetic properties of certain nuclei.
3.7K
Other Nuclides: 31P, 19F, 15N NMR
372
Many organic, inorganic, and biological molecules contain spin-half nuclei such as nitrogen-15, fluorine-19, and phosphorus-31. As a result, NMR studies of these nuclei have found extensive applications in chemical and biological research.
While fluorine-19 and phosphorous-31 have high natural abundances (100%) and positive gyromagnetic ratios, nitrogen-15 has a low natural abundance and a negative gyromagnetic ratio. However, nitrogen-15 is still preferred over nitrogen-14 (which has a...
While fluorine-19 and phosphorous-31 have high natural abundances (100%) and positive gyromagnetic ratios, nitrogen-15 has a low natural abundance and a negative gyromagnetic ratio. However, nitrogen-15 is still preferred over nitrogen-14 (which has a...
372
NMR Spectroscopy Of Amines
8.6K
In proton NMR spectroscopy, primary amines and secondary amines showcase their N–H protons as a broad signal in the chemical shift range between δ 0.5 and 5 ppm. The exact position in this range depends on several factors, including sample concentration, hydrogen bonding, and the type of solvent used. Since amine protons undergo fast proton exchange in solution, the protons are labile and therefore do not participate in any splitting with adjacent protons. Thus, the observed peak is...
8.6K
Nuclear Magnetic Resonance (NMR): Overview
2.3K
Nuclear magnetic resonance (NMR) is a phenomenon exhibited by certain nuclei that can absorb characteristic radio frequency radiation under certain conditions. NMR has been extensively applied in molecular spectroscopy and medical diagnostic imaging. In both these applications, the molecule or subject under study is placed in a magnetic field and irradiated with radio frequency energy.
NMR spectroscopy generates a spectrum where the characteristic absorption frequencies of the sample are...
NMR spectroscopy generates a spectrum where the characteristic absorption frequencies of the sample are...
2.3K


