Spit test for virus-related head cancerIt is well known that human papillomavirus, or HPV, causes cervical cancer. But the virus has been linked to a number of other tumors as well, including head and neck cancer. Since the treatment and prognosis for virus-positive and virus-negative tumors can be different, it has been a long-standing goal to come up with an easy, non-invasive test for the presence of the virus in head and neck cancer patients. 1 Comment |
Gene mutation linked to bipolar disorderHistorically, mood disorders have been blamed upon evil spirits, possession and witchcraft. More modern investigations have looked at environmental causes and childhood experiences. However, more and more evidence shows that genetics play an important role in these disorders, including bipolar disorder. 5 Comments |
New theory explains antibiotic mechanismAntibiotics are likely the most widely used medicines in the world. Early antibiotics were already in use in ancient Egypt and Greece, and it has been over a century since it was discovered that antibiotics kill bacteria. But remarkably, the precise mechanism by which antibiotics work is still unknown. 2 Comments |