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Magnetic Declination01:19

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Magnetic declination is the angle between true north, which aligns with the Earth's rotational axis, and magnetic north, which follows the direction of the Earth's magnetic field. This discrepancy exists because the magnetic poles do not coincide with the geographic poles. The value of magnetic declination depends on the observer's location on Earth and is subject to changes over time due to the dynamic nature of the Earth's magnetic field.The declination is called eastern when magnetic north...
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In contrast to passive transport, active transport involves a substance being moved through membranes in a direction against its concentration or electrochemical gradient. There are two types of active transport: primary active transport and secondary active transport. Primary active transport utilizes chemical energy from ATP to drive protein pumps that are embedded in the cell membrane. With energy from ATP, the pumps transport ions against their electrochemical gradients—a direction...
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The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.
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随着时间的推移,亚临床原发性阿尔多斯特和eGFR下降.

Gregory L Hundemer1,2, Louis-Charles Desbiens3, Mohsen Agharazii4,5

  • 1Department of Medicine, Division of Nephrology, University of Ottawa, Ottawa, Ontario, Canada.

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此摘要是机器生成的。

亚临床原发性阿尔多斯色素,以高的阿尔多斯素与素比率 (ARR) 表示,与更快的功能下降有关. 较低的蛋白水平还与血压独立的估计球过率 (eGFR) 降低的增加相关.

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科学领域:

  • 腎臟病學 (nephrology) 是一種醫學專業.
  • 内分泌学 在内分泌学.
  • 心血管研究研究心血管研究

背景情况:

  • 主要的阿尔多斯特主义加速了功能下降.
  • 初级阿尔多斯特主义的亚临床形式很常见,但它们对功能的影响尚不清楚.

研究的目的:

  • 为了研究亚临床初级阿尔多斯特隆症标志物与估计的淋巴球过率 (eGFR) 降低之间的关联.

主要方法:

  • 对976名加拿大成年人 (40-69岁) 的前性队列研究.
  • 测量的阿尔多素,氨酸,肌氨酸和囊氨酸C.
  • 使用多变量线性混合回归来评估阿尔多素,氨酸和阿尔多素与氨酸比率 (ARR) 与5-7年的eGFR下降的关联.

主要成果:

  • 较高的ARR与随着时间的推移,eGFR下降率更为的11%有关.
  • 较低的蛋白水平与随着时间的推移而出现的16%更的EGFR下降有关.
  • 单独使用阿尔多斯特并没有与eGFR变化有显著的关联.

结论:

  • 升高的ARR和抑制的雷宁独立地与加速的eGFR下降有关.
  • 这些关联无论血压水平如何,都会持续存在.