Research has supported the idea that caffeine, a natural stimulant, Narrows blood vessels by blocking the effects of a hormone called adenosine, which normally keeps them widened.

这一新的研究成果对下面这一理论表示支持，即咖啡因这种天然的刺激物会防碍一种被称为腺苷(adenosine)的激素发挥作用，从而使血管变得狭窄。腺苷的作用则是让血管保持宽敞。

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The researchers found that rotation of the acupuncture needles damaged tissue, which caused a release of adenosine, a known anti-inflammatory mediator.

研究者发现，针炙针的旋转破坏了一些组织，从而导致腺苷酸(一种已知的抗发炎介质)的释放。

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A a nucleotide derived from adenosine that occurs in muscle tissue; the major source of energy for cellular reactions.

肌肉细胞中由腺苷衍生而来的核苷酸，细胞反应的主要能源。

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It blocks adenosine, which produces a similar effect to increasing dopamine production.

BBC: Coffee may prevent depression, scientists say

The Glaxo gene therapy program will focus on a severe immune deficiency called ADA-SCID, in which kids cannot make a crucial enzyme called adenosine deaminase that is needed to create immune system cells.

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It turned out that in regular coffee drinkers, a good number of these adenosine receptors were blocked by caffeine when the people were infused with it.

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