Tag Archives: study

Potential link between breast cancer genes, salivary gland cancer — ScienceDaily

Although salivary gland cancer is rare, this retrospective study suggests it occurs 17 times more often in people with inherited mutations in genes called BRCA1 and BRCA2, than those in the general population. “Further study is needed to confirm this preliminary result, but I believe that a BRCA-positive patient with a lump in a salivary gland should have that lesion evaluated as soon as possible,” says co-author Theodoros Teknos, MD, professor and chair of otolaryngology, director of head and neck oncologic surgery, and the David E…

Fundamental theory about education of immune police questioned by researchers

It’s known that stem cells come out of the bone marrow and travel to the tiny thymus gland behind the breastbone to learn to become one of two CD4T cell types: one leads an attack, the other keeps the peace. One widely held concept of why they become one or the other is that, despite coming from the same neighborhood and going to the same school, they are exposed to different things in the thymus, said Dr. Leszek Ignatowicz, immunologist at the Medical College of Georgia at Georgia Regents University. In this case, the “things” are ligands and developing T cells are potentially exposed to thousands of these tiny pieces of us inside the thymus…

Survival molecule helps cancer cells hide from the immune system

A new study by researchers at The Ohio State University Comprehensive Cancer Center — Arthur G. James Cancer Hospital and Richard J. Solove Research Institute (OSUCCC — James) shows that a molecule called nuclear factor kappa B (NF-kB) helps cancer cells by suppressing the immune system’s ability to detect and destroy them. …

One in three people with cancer has anxiety or other mental health challenges

“These findings reinforce that, as doctors, we need to be very aware of signs and symptoms of mental and emotional distress. We must encourage patients to seek evaluation, support, and treatment if necessary as there are long-term risks often associated with more severe, untreated mental health disorders. This research also sheds light on which patients we should watch more closely,” said lead study author Anja Mehnert, PhD, a professor of psychosocial oncology at the University of Leipzig in Germany. “We also want to reassure patients who are struggling that they are not alone or unique, and that these mental and emotional challenges can be temporary, especially with effective psychological support or state-of-the-art mental health treatment.” Psychological support options may include individual, couples, family, and group psychotherapy, and relaxation therapy and imagery, among others, according to the authors…

Cell migration: How it works, how new discovery may inform cancer research

Cells migrate by connecting their cytoskeleton — a network made up of proteins — to adhesion molecules which in turn get in contact with the surrounding connective tissue. In order to guide cells in a certain direction a signal from outside is needed, which leads then to cell polarization and coordinated mechanical movement. A fundamental question is how signaling pathways are regulated in time and space to facilitate directional migration of cells…

Gene can predict aggressive prostate cancer at diagnosis — ScienceDaily

The results reported in the journal of Clinical Cancer Research, a publication of the American Association of Cancer Research, indicate the KLK3 gene — a gene on chromosome 19 responsible for encoding the prostate-specific antigen (PSA) — is not only associated with prostate cancer aggression, but a single nucleotide polymorphism (SNP) on it is more apparent in cancer patients with GS7. Researchers have linked Gleason score, an important predictor of prostate cancer outcomes, to several clinical end points, including clinical stage, cancer aggression and survival. …

High alcohol intake linked to heightened HPV infection risk in men

And habitual drinking is known to increase susceptibility to bacterial pneumonia, septicaemia, tuberculosis and viral hepatitis. The researchers therefore wanted to find out if there was any association between drinking patterns and susceptibility to HPV infection. They included 1313 men who were already taking part in the US arm of the HPV in Men (HIM) study, an international study that is tracking the natural history of HPV infection in men. …

Study may lead to early detection, better outcomes for lymphedema patients

The study is testing bioimpedance spectroscopy, a device where electrodes are placed on the patient’s arms so that the fluid buildup can be accurately measured. The randomized study is enrolling 1,100 research subjects over two years at five sites in the United States and Australia. “Many in the health care community, and even breast cancer patients, don’t understand that this lifelong arm swelling is a possible result of breast cancer treatment, but others of us have been working on this issue for decades,” said principal investigator Sheila H. …