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Why tumours become resistant to treatment

Scientists have identified three genes that could lead to a new understanding of why cancer cells become highly resistant to treatment.

Sedatives turn fish into unsociable gluttons

Drug residues in the waterways can have unexpected consequences for our ecosystems, say Swedish researchers after exposing perch to anti-anxiety drugs.

Nonblinded studies generate observer bias

The effect of a new drug or method is assessed too positively if the doctors who assess the patients’ course know in advance who received the new experimental treatment and who received the control treatment.

Faulty braking system leads to depression

New rat study reveals that the brains of depressive people are incapable of controlling the activity in certain brain areas – the innate braking system doesn’t work. The discovery could lead to new types of antidepressants.

Bestseller drug may cause osteoporosis

The world’s second-most common prescription drug, Plavix, may increase the risk of osteoporosis, new study reveals.

Does pot really make you dumber?

A Norwegian economist thinks cannabis doesn’t necessarily make you less intelligent. He says earlier research on declining IQ among users has neglected to account for social backgrounds. But other researchers blame the drugs.

Synthetic supermolecule to fight cancer, arthritis and herpes

They look like tiny trees and they can be used to produce everything from printer ink to cancer drugs. New book outlines the great therapeutic potential of the supermolecules known as dendrimers.

Melanoma crushed by the body’s defence

Immune cells from cancer patients in a Danish hospital are proving successful for fighting melanoma. The new treatment may also work on other forms of cancer.

The dope on marijuana cultivation in Norway

Indoor cultivation of marijuana plants is on the rise in Norway, but most growers plan to stay small, and look down on the established drug trade.

Cannabis makes inmates behave

Prison guards often turn a blind eye to cannabis smoking, because stopping inmates from smoking creates turmoil in prisons and can damage rehabilitation, says new Danish study.