Engineered in lab mice, this gene produced a protein (named OPG) that vastly increased bone strength and thickness-without causing any harmful side effects.

FORBES: Biotech Behemoth

If effective drugs could treat the disease without any dangerous or unpleasant side effects, they would be surefire blockbusters.

FORBES: Magazine Article

However, this treatment is aggressive, with significant side effects, and many men live with prostate tumours for years without any problems.

BBC: Image of breast cancer