"Human embryonic stem cells created from adult tissue for first time," The Guardian reports, while the Daily Mail's front page leads with the somewhat fanciful warning that new research raises the "spectre of cloned babies".

These headlines are based on newly published research into the use of a technique known as somatic cell nuclear transfer (SCNT) as part of embryonic stem cell research. It should be noted that no babies were born as a result of this research, and the researchers had no intention of producing a live cloned human being.

SCNT involves taking donated egg cells from women and removing their genetic material. These are then fused with human cells – in this case skin cells – and the fused cell begins behaving in a similar way to an embryo by producing human stem cells.

This research is the first time the technique has been successful using human cells.

When these stem cells were tested, researchers found that the cells were able to develop into other types of cells in a manner similar to that seen in stem cells derived directly from embryos.

The researchers say that this could have exciting implications. The technique could potentially be used to take skin cells from a patient to create "personalised" stem cells. The resulting stem cells could then possibly be used to repair damaged tissue, or even treat genetic conditions.

A study that you probably won’t be reading in your daily paper or favourite news website anytime soon casts serious doubts on the reliability of mainstream medical and health journalism.

The study found that 51% of news items reporting on medical trials – specifically on randomised controlled trials (RCTs), which are seen as the gold standard in judging whether a treatment is effective or safe – were subject to “spin”.

What is meant by 'spin'?

To spin information is to distort the true picture to fulfil an agenda, often by presenting information in way that creates a positive or favourable impression.

The researchers defined spin for the purposes of the study as “specific reporting strategies (intentional or unintentional) emphasising the beneficial effect of the experimental treatment”.