Download e-book for kindle: Adrenaline by Brian B. Hoffman

By Brian B. Hoffman

ISBN-10: 0674050886

ISBN-13: 9780674050884

Inducing highs of pleasure, anger, and terror, adrenaline fuels the extremes of human adventure. a hurry empowers superhuman feats in emergencies. Risk-taking junkies search to copy this sense in risky recreations. And a surge may well actually scare us to loss of life. Adrenaline brings us in control at the attention-grabbing molecule that drives a few of our so much effective experiences.

Adrenaline used to be chanced on in 1894 and fast made its method out of the lab into clinics all over the world. during this engrossing account, Brian Hoffman examines adrenaline in all its capacities, from an important regulator of physiological features to the topic of Nobel Prize–winning breakthroughs. simply because its biochemical pathways are prototypical, adrenaline has had common program in hormone study resulting in the advance of strong new medicinal drugs. Hoffman introduces the scientists to whom we owe our knowing, tracing the trails in their discoveries and aspirations and permitting us to understand the an important function adrenaline has performed in pushing glossy medication forward.

Hoffman additionally investigates the brilliant, now and then lurid, position adrenaline occupies within the well known mind's eye, the place debts of its life-giving and deadly homes usually go away the area of truth. recognized because the catalyst of the “fight or flight” reaction, adrenaline has additionally acquired forensic cognizance as an ideal poison, untraceable within the bloodstream—and rumors persist of its strength to restore the lifeless. precise to the spirit of its subject, Adrenaline is a stimulating trip that finds the reality in the back of adrenaline’s medical significance and enduring well known attraction.

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Extra info for Adrenaline

Sample text

The benzene ring with the two attached hydroxyl (OH) groups is the catechol moiety (a functional group that is part of a molecule). The nitrogen (N) makes adrenaline an amine. Consequently, adrenaline and noradrenaline are often called catecholamines. that only half of the chemically synthesized material is active. He confirmed this hypothesis by testing pure synthetic d-adrenaline obtained from Germany. We now know that the fit of adrenaline into adrenergic receptors is so tight and specific that only l-adrenaline activates these receptors.

He got off on the wrong foot, proposing a structure that he soon abandoned. Subsequently, he used iron to precipitate a substance that he named suprarenin. Von Fürth believed that suprarenin was entirely different from Abel’s epinephrin; moreover, he held that epinephrin had no connection with the active substance in the gland. Abel vigorously contested von Fürth’s opinions and devoted considerable effort to sorting out discrepancies in the two accounts. However, while Abel was trying to refute von Fürth’s claims, further up the East Coast a man named Jokichi Takamine was making better progress in isolating the active substance from the adrenal medulla.

Each of them made use of the fact that removing a rooster’s testicles leads to the disappearance of the bird’s observable male characteristics. Berthold’s experiments suggested that reimplanting the testicles helped roosters retain these male features.  Decades later, three lines of research provided an intellectual climate that led scientists to be much more inclined to accept the possibility that the adrenals secrete an active substance into the blood: a brilliant French scientist named Claude Bernard demonstrated that the liver secretes glucose, physicians and surgeons described a new disease involving the thyroid gland, and an elderly man claimed that he was rejuvenated by extracts made from sperm and testicles.

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Adrenaline by Brian B. Hoffman


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