December 18, 2009
The use of computed tomography (CT) scans in medicine to diagnose disease, and in many cases save lives, has exploded in recent decades. The down side, a new study concludes, is that the radiation US patients receive from these medical exams will eventually result in ...
December 14, 2009
Radiation doses from common CT procedures vary widely and are higher than generally thought, raising concerns about increased risk for cancer, according to a new study led by UCSF imaging specialists.
"In day-to-day clinical practice, we found significant variation in the radiation doses for the ...
December 9, 2009
What does TTAGGG spell? If you're human, it might spell long life.
That's the sequence of DNA building blocks that keeps our cells ticking. The sequence bears repeating, and the more it repeats, the healthier we may be. In some populations loss of this DNA from key cells is associated with poor health and earlier death.
In Stockholm, Sweden on Monday, UCSF's Elizabeth Blackburn, PhD, along with two fellow scientists with whom she will share the 2009 Nobel Prize for Physiology or Medicine, described discoveries leading to October's award announcement, including the first-ever identification of one of these key DNA sequences.
The Nobel laureates also discussed what their discoveries and ongoing research tells us about health, cancer and aging. The lectures are part of a weeklong series of events that will culminate with Thursday's award ceremony.
Blackburn, along with Carol Greider, PhD, of Johns Hopkins University, and Jack Szostak, PhD, from Harvard Medical School, will be awarded the prize on Thursday for discoveries that have led to an understanding of how the cells of organisms ranging from protozoans to people are equipped to defend the integrity of their genetic blueprints through many generations of cell divisions.
December 3, 2009
The American College of Obstetricians and Gynecologists (ACOG) is recommending less frequent cervical cancer screening for healthy women over age 30 and says women younger than 21 need not be screened at all.
The Nov. 20 announcement came just four days after a federal task ...
November 20, 2009
Breast cancer activists, scientists from across the nation and senior leaders from the National Institute for Environmental Health Sciences (NIEHS) have been meeting this week at Cavallo Point Lodge in Sausalito.
Their purpose is to review progress and future directions for collaborative research aimed at ...
November 20, 2009
UCSF scientists have shown for the first time that the rigidity of a tissue can induce cancer. The research team identified an enzyme that is crucial for regulating tissue stiffness and demonstrated that the enzyme can turn abnormal but non-malignant breast tissue into tumors, according ...