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Anabolic-androgenic steroids (AAS), a synthetic version of the male sex hormone testosterone, are sometimes used as a medical treatment for hormone imbalance. A new study suggests that AAS can also have deleterious effects on the brain, causing it to age prematurely.The report appears in Biological Psychiatry: Cognitive Neuroscience and Neuroimaging, published by Elsevier."Anabolic steroid use has been associated with a range of medical and psychological side effects," said lead author, Astrid Bjornebekk, PhD, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway. "However, since anabolic steroids have only been in the public domain for about 35 years, we are still in the early phase of appreciating the full scope of effects after prolonged use. The least studied effects are those that relate to the brain."Steroid hormones readily enter the brain, and receptors for sex hormones are found throughout the brain. Because AAS are administered at much higher doses than those naturally found in the body, they could have a harmful impact on the brain, particularly over a long period of use. Previous studies have shown that AAS users performed worse on cognitive tests than non-users.Dr Bjornebekk and colleagues performed magnetic resonance imaging (MRI) of the brains of 130 male weightlifters with a history of prolonged AAS use and of 99 weightlifters who had never used AAS. Using a set of data compiled from nearly 2,000 healthy males from age 18 to 92 years of age. The researchers used machine learning to determine the predicted brain age of each of their participants and then determined the brain age gap: the difference between each participant's chronological age and their predicted brain age. Advanced brain age is associated with impaired cognitive performance and increased risk for neurodegenerative diseases.Not surprisingly, AAS users had a bigger brain-age gap compared to non-users. Those with dependence on AAS, or with a longer history of use, showed accelerated brain ageing. The researchers accounted for use of other substances and for depression in the men, which did not explain the difference between the groups."This important study shows in a large sample that uses is associated with deviant brain ageing, with a potential impact on quality of life in older age. The findings could be directly useful for health care professionals, and may potentially have preventive implications, where brain effects are also included into the risk assessment for young men wondering whether to use anabolic steroids," added Dr. Bjornebekk.Cameron Carter, MD, editor of Biological Psychiatry: Cognitive Neuroscience and Neuroimaging, said of the study: "The results of this brain imaging study should be of concern for athletes using anabolic steroids for performance enhancement and suggest that the adverse effects on behaviour and cognition have previously shown to be associated with long-term use are the result of effects on the brain in the form of accelerated brain ageing."( With inputs from ANI )Disclaimer: This post has been auto-published from an agency feed without any modifications to the text and has not been reviewed by an editor

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Division Of Mental Health And Addiction, NewsFOLLOW

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Technology :Anabolic androgenic steroids accelerate brain ageing, reveals study

Anabolic-androgenic steroids (AAS), a synthetic version of the male sex hormone testosterone, are sometimes used as a medical treatment for hormone imbalance. A new study suggests that AAS can also have deleterious effects on the brain, causing it to ...