1.
89% of U.S. adults say birth control moral
TOKYO, June 26 (UPI) -- Bone marrow stem cells injected into a damaged inner ear can speed hearing recovery after partial hearing loss, says a Japanese study.
Dr. Tatsuo Matsunaga of the National Tokyo Medical Center used a rat model of drug-induced hearing loss that specifically destroys cochlear fibrocytes and leads to acute hearing loss.
Matsunaga injected stem cells into the inner ear of the injured rats, and about half survived. These stem cells divided in the new environment and expressed several proteins necessary for hearing, suggesting tissue-specific differentiation. The transplanted cells that migrated to the damaged area of the inner ear displayed a shape similar to that of cochlear fibrocytes.
Stem cell migration into the damaged area of the inner ear improved hearing of high-frequency sound -- 40 kHz -- by 23 percent compared with natural recovery in untreated animals, according to the study published in The American Journal of Pathology.
|
|
|
|
|
|
| Additional Health News Stories | |
PORTLAND, Ore., May 25 (UPI) --
Police said Friday they found the woman who apparently abandoned her three children, ages 1-3, with a group of homeless people in a shed in Portland, Ore.
|
WINSTON-SALEM, N.C., May 25 (UPI) --
Arthel "Doc" Watson is hospitalized in critical condition after a fall at his North Carolina home, the 89-year-old folk musician's family said.
|
WEST PALM BEACH, Fla., May 25 (UPI) --
Police in Florida said a man allegedly pointed a gun at three women so they would let him cut in at a McDonald's drive-through lane.
|
NICOSIA, Cyprus, May 25 (UPI) --
Turkey says waters off the coast of war-divided Cyprus where Greek Cypriots plan to explore for natural gas lie within its continental shelf, sharpening multi-sided disputes over major fields under the eastern Mediterranean.
|
| Stories | Photos | People | Comments |
View Caption
