Tag Archives: scientific

Natural extract shows promise for preventing breast cancer, study suggests

“Doctors, patients and researchers are looking for alternative treatments for triple negative breast cancer, and people are always looking for ways to prevent cancer,” said Patrick Martin, Ph.D., associate professor at North Carolina Agricultural and Technical State University and leader of the study. “How awesome would it be to be able to say: Here, take a daily vitamin tablet from the rose plant to possibly help prevent or treat cancer? It’s a natural product that we found to be effective, with no known side effects.” Triple negative breast cancer draws its name from the fact that the cancer cells in these tumors lack the three growth factor receptors that are normally targeted during breast cancer treatment. …

Smoking still causes large proportion of cancer deaths in the United States

More than 30 years ago, a groundbreaking analysis by famed British researchers, Richard Doll and Richard Peto, calculated that 30 percent of all cancer deaths in the United States were caused by smoking. Since that time, no new estimate of this percentage has been published in the scientific literature. …

‘Off switch’ for pain discovered: Activating the adenosine A3 receptor subtype is key to powerful pain relief

The scientific efforts led by Salvemini, who is professor of pharmacological and physiological sciences at SLU, demonstrated that turning on a receptor in the brain and spinal cord counteracts chronic nerve pain in male and female rodents. Activating the A3 receptor — either by its native chemical stimulator, the small molecule adenosine, or by powerful synthetic small molecule drugs invented at the NIH — prevents or reverses pain that develops slowly from nerve damage without causing analgesic tolerance or intrinsic reward (unlike opioids). An Unmet Medical Need Pain is an enormous problem…

Advances in electron microscopy reveal secrets of HIV and other viruses

The envelope (or Env) protein of HIV is a key target for vaccine makers: it is a key component in RV144, an experimental vaccine that is so far the only candidate to show promise in clinical trials. Also called gp120, the Env protein associates with another protein called gp41 and three gp120/gp41 units associate to form the final trimeric structure. The gp120 trimer is the machine that allows HIV to enter and attack host cells. …

Scoring scheme predicts ability of cancer cells to spread to other parts of body

Led by Professor Jean Paul Thiery, Senior Principal Investigator, and Dr Ruby Huang, Principal Associate, both from CSI Singapore, the scientists developed a scoring scheme which monitors the epithelial-mesenchymal transition (EMT) mechanism. This process was shown to play a role in a large number of cancer-related events, including cancer invasion, metastasis, and chemo-resistance…

Breast cancer recurrence: Study provides insight — ScienceDaily

Around 5,000 cases of DCIS, a condition where cancerous cells are contained within the milk ducts of the breast, are diagnosed each year in the UK, with two thirds diagnosed through breast screening. If left untreated, up to half of DCIS cases could progress into invasive breast cancer, but it is not possible to say which ones, so all women are offered treatment. …

How cells defend themselves against antibiotics, cytostatic agents

For the first time, the group led by Robert Tamp�, in collaboration with colleagues at the University of California in San Francisco, succeeded in determining the structure of an asymmetrical ABC transporter complex with the aid of a high-resolution cryo-electron microscope. “Over a period of five years, we have successfully implemented a number of innovative, methodological developments. …