Washington, November 12 : Mayo Clinic researchers say that the challenge of controlling heart disease among people may be greater than is commonly thought.

Cardiologist Francisco Lopez-Jimenez says that a study has revealed that the positive U. S. health trend documented over the past 30 years of reduction in risk for heart disease is not as strong as is widely perceived. According to him, the trend has instead flattened.

London, Nov 12 : A new research has dispelled fears that In Vitro Fertilization (IVF) may elevate women’s risk of developing breast cancer.

The nationwide study in the Netherlands found that the fertility treatment has no effect on the disease.

Although no firm link between IVF and breast cancer has been established, some boffins are worried about the potential effects of fertility drugs used to stimulate the ovaries so that eggs can be collected and fertilised, reports Times Online.

London, Nov 12: An antioxidant

Washington, Nov 12: Cambridge scientists have made a major breakthrough in rheumatoid arthritis. They have genetically engineered a drug-inducible form of Foxp3 gene, which when activated can prevent the autoimmune reaction characterised by the disease.

Rheumatoid arthritis is a painful, inflammatory type of arthritis that occurs when the body''s immune system attacks itself.

And the new strategy developed by scientists at the Medical Research Council''s Laboratory of Molecular Biology in Cambridge, may open the door for therapy development for rheumatoid arthritis.

Generally, immune cells develop to recognise foreign material – antigens; including bacteria - so that they can activate a response against them.

Washington, Nov 12: Scientists suggest that neuroprosthetic brain implants may help stroke patients to overcome partial paralysis.

The researchers from Washington University School of Medicine in St. Louis discovered that implants known as brain-computer interfaces (BCI) may be able to detect activity on one side of the brain that is linked to hand and arm movements on the same side of the body.

They hope to use these signals to guide motorized assistance mechanisms that restore mobility in partially paralyzed limbs.

Washington, November 12 : Testing cardiac patients for depression does not prove beneficial, reveals a new study.

Researchers at McGill University, Johns Hopkins University and six other institutions across the globe raised doubt on the American Heart Association''s insistence on the important link between depression and cardiac care.