London, Nov 2 : A ‘significant discovery’ by researchers at Cambridge University could help cure deadly brain tumours in kids, according to a new study.

The researchers have pinpointed a rearrangement of DNA present in around two-thirds of all cases of the most common brain tumours in five to 19-year-olds.

The most common type of brain tumour is pilocytic astrocytomas.

According to the researchers, the discovery could pave the way for creating better treatments and make diagnosis more accurate.

London, Nov 2 : Expecting mums will be warned not to drink more than two cups of coffee a day or risk giving birth to underweight babies, according to a health watchdog.

The British Government''s food standards watchdog will this week issue the guidance advising women to limit caffeine consumption to 200mg a day, a third less than the previous recommended limit of 300mg.

The warning follows a US study earlier this year that linked caffeine consumption to a higher rate of miscarriages.

The advice from the Food Standards Agency (FSA) comes a week after scientists found that a weekly glass of wine during pregnancy could help improve a baby''s behaviour and vocabulary.

Washington, November 1 : A team of American scientists claims to have uncovered an important step in hormone-triggered bone growth, paving the way for new osteoporosis drugs and better bone-building therapies.

The research from the University of Alabama at Birmingham (UAB) showed that parathyroid hormone (PTH) given intermittently enhances the body''s own bone-building action through a specific "co-receptor" on the surface of bone cells.

While scientists have known for long that PTH stimulates bone formation, the exact mechanism underlying this effect has been unknown to date.

Washington, Nov 1: Parents who smoke are likely to have impulsive kids, says a new study.

The new study led by researchers at Nationwide Children’s Hospital has found that children of parents who smoke are likely to share a tendency to act impulsively, a trait that could be linked to a decision to become a smoker.

Lead researcher Brady Reynolds focused his study on the connection between smoking and impulsivity, or more specifically, delay discounting.

Washington, Oct 31 : In a study on family-based gene scan of Alzheimer''s disease, scientists have discovered the sites of four novel genes that may significantly influence risk for the most common late-onset form of the devastating neurological disorder.

Led by researchers from the MassGeneral Institute for Neurodegenerative Disease (MGH-MIND), the researchers described how newly available technology is improving understanding of genetic mechanisms underlying the disease.

Washington, Oct 31 : Researchers at UC Davis Cancer Center have discovered that the HER2 gene itself is the key behind the aggressiveness of HER2-positive breast cancer.

They found that HER2 advances tumour growth by shutting down its own regulator gene, labelled LRIG1 and commonly called "Lig-1".

The new study comes in line with recent research showing that Lig-1 limits the growth-promoting signals of HER2.

Now, the researchers have found that the regulator is significantly suppressed when compared to healthy breast tissue.