Arquivo da tag: Cogumelos

Active ingredient in magic mushrooms reduces anxiety, depression in cancer patients (Science Daily)

Date: December 10, 2015

Source: American College of Neuropsychopharmacology

Summary: Psilocybin, found in magic mushrooms, decreased anxiety and depression in patients diagnosed with life-threatening cancer. New research shows that patients who received a psilocybin dose that altered perception and produced mystical-type experiences reported significantly less anxiety and depression compared with patients who received a low dose of the drug. The positive effects lasted 6 months.


A single dose of psilocybin, the major hallucinogenic component in magic mushrooms, induces long-lasting decreases in anxiety and depression in patients diagnosed with life-threatening cancer according to a new study presented at the annual meeting of the American College of Neuropsychopharmacology.

Patients who receive a cancer diagnosis often develop debilitating symptoms of anxiety and depression. Reports from the 1960s and 1970s suggest that hallucinogenic drugs such as LSD may alleviate such symptoms in cancer patients, but the clinical value of hallucinogenic drugs for the treatment of mood disturbances in cancer patients remains unclear. In this new study, Roland Griffiths and colleagues from the Johns Hopkins University School of Medicine investigated the effects of psilocybin on symptoms of anxiety and depression in individuals diagnosed with life-threatening cancer. Five weeks after receiving a dose of psilocybin sufficiently high to induce changes in perception and mystical-type experiences, patients reported significantly lower levels of anxiety and depression compared with patients that received a low dose of the drug. The positive effects on mood persisted in the patients at 6 month follow-up.

The authors suggest that a single dose of psilocybin may be sufficient to produce enduring decreases in negative mood in patients with a life-threatening cancer.

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Mushrooms can change the weather, scientists reveal (Telegraph UK)

The fungi can whip up winds that blow away their spores and help them disperse

Mushrooms can change the weather, scientists reveal

Magic Mushrooms? According to scientists, mushrooms can alter the moisture of the air around them, whipping up winds that blow away their spores and help them disperse Photo: ALAMY

By News agencies

1:49PM GMT 25 Nov 2013

Mushrooms have an extraordinary ability to control the weather, scientists have learned.

By altering the moisture of the air around them, they whip up winds that blow away their spores and help them disperse.

Plants use a variety of methods to spread seeds, including gravity, forceful ejection, wind, water and animals. Mushrooms have long been thought of as passive seed spreaders, releasing their spores and then relying on air currents to carry them.

But new research has shown that mushrooms are able to disperse their spores over a wide area even when there is not a breath of wind – by creating their own weather.

Scientists in the US used high-speed filming techniques and mathematical modelling to show how oyster and Shitake mushrooms release water vapour that cools the air around them, creating convection currents. This in turn generates miniature winds that lift their spores into the air.

The findings, presented at the annual meeting of the American Physical Society’s Division of Fluid Dynamics in Pittsburgh, suggest that mushrooms are far more than mechanical spore manufacturers.

”Our research shows that these ‘machines’ are much more complex than that: they control their local environments, and create winds where there were none in nature,” said lead scientist Professor Emilie Dressaire, from Trinity College in Hartford, Connecticut. ”That’s pretty amazing, but fungi are ingenious engineers.”

The scientists believe the same process may be used by all mushroom fungi, including those that cause diseases in plants, animals and humans.

A mushroom – or toadstool – is technically the fleshy, spore-bearing, fruiting body of a fungus.

Millions of spores, microscopic single-celled ”seeds”, may be produced by a single mushroom, at least a few of which are likely to land somewhere suitable for fungal growth.

More than 80 different types of wild edible mushroom grow in the UK, as well as many poisonous species.

One of the world’s deadliest mushrooms, the death cap, is a common sight in British woodland. Although pleasant tasting, just one ounce of the fungus is enough to kill.