Japanese researchers will now study how the bone density of the Medaka fish has changed over time, helping them understand similar changes that occur in human astronauts.

FORBES: Dragon Returns To Earth With 'Space Fish,' Toothpaste Research

The biotechnology firm announced that a much-awaited study of its bone drug Xgeva (also known as denosumab, and sold for osteoporosis as Prolia) prevented prostate cancer from spreading to the bone in patient whose levels of prostate-specific antigen are rising.

FORBES: Amgen Drug Prevents Prostate Cancer From Spreading To Bone

Dr. Hannan's study, in the Journal of Bone and Mineral Research last week, found that men over age 70 who lose 2 or more inches in two years have a 54% higher risk of fracturing a hip in the next two years than men who lose less height.

WSJ: Health Journal: Yes, You Are Getting Shorter

Nor did the supplements reduce the aging-related bone loss that can lead to osteoporosis, the study found.

CNN: Soy no help for bone loss, hot flashes

Researchers say every child in the study either gained weight or showed improvements in bone structure or arterial stiffness.

CNN: Advances in kids' early aging disease

Verfaillie's study indicates that very rare cells harvested from adult bone marrow can have the same benefits.

FORBES: Stem Cells' Double Breakthrough

In a study in mice, they injected stem cells from bone marrow into skeletal muscles of limbs.

CNN: Stem cells may offer promise for damaged hearts

The study tested whether myeloma patients who had stable disease following a bone marrow transplant did better if they received Revlimid or placebo.

FORBES: Celgene Stock Falls On Worries About Secondary Cancers