Tag Archives: development

Vitamin D deficiency, depression linked in international study

“Rather than being one of many factors, vitamin D could have a regulative role in the development of SAD,” said Alan Stewart of the University of Georgia College of Education. An international research partnership between UGA, the University of Pittsburgh and the Queensland University of Technology in Australia reported the finding in the November 2014 issue of the journal Medical Hypotheses. Stewart and Michael Kimlin from QUT’s School of Public Health and Social Work conducted a review of more than 100 leading articles and found a relationship between vitamin D and seasonal depression…

Hedgehog signaling pathway for breast cancer identified — ScienceDaily

Scientists at The University of Texas MD Anderson Cancer Center report that hedgehog, a unique cell signaling pathway known to contribute to many types of cancer, may be behind breast cancer metastasis. This molecular message service works with the lncRNA known as BCAR4 giving the genetic green light for tumor growth. “Our study of BCAR4 and the hedgehog signaling pathway has provided evidence for lncRNAs’ regulator roles in aggressive breast cancers progression,” said Liuqing Yang, Ph.D., assistant professor of molecular and cellular oncology, whose findings are published in this month’s issue of Cell…

Investigational oral drug combo shows promise for newly diagnosed multiple myeloma

“Ixazomib is an investigational, oral proteasome inhibitor with promising anti-myeloma effects and low rates of peripheral neuropathy,” says Shaji Kumar, M.D., a hematologist at Mayo Clinic and lead author of the study. “While it is well known that a combination of bortezomib, lenalidomide and dexamethasone is highly effective in treating newly diagnosed multiple myeloma, we wanted to study the safety, tolerability and activity of ixazomib in combination with lenalidomide and dexamethasone in newly diagnosed multiple myeloma.” Dr. Kumar and colleagues enrolled 65 patients (15 to phase 1 and 50 to phase 2) between November 2010 and February 2012. …

Scientists find way to reduce ovarian cancer tumors, chemo doses

Their research appears in The FASEB Journal. “We hope that this study will lead to novel treatment approaches for women diagnosed with late-stage ovarian cancer,” said Jim Petrik, a Guelph biomedical sciences professor. He worked on the study with Guelph graduate student Samantha Russell and cancer researchers from Harvard Medical School…

Expression of SIP1 protein indicates poor prognosis in pharyngeal cancer

Although pharyngeal squamous cell carcinoma (PSCC) is a rather rare disease, its incidence has been increasing over the past three decades, now accounting for 130,000 new cases and 80,000 cancer deaths worldwide. The prognosis is one of the poorest of all the head and neck squamous cell carcinomas and it has not improved to any significant extent, despite the availability of multimodal therapies. …

Novel cancer vaccine approach for brain tumors

“In recent years, researchers and the public have begun to realize the role that the immune system plays in both cancer prevention and treatment,” says senior author Craig Hooper, Ph.D., a Professor in the Department of Cancer Biology at Thomas Jefferson University. “The immune system has great potential for helping fight cancer. This study helps give us a roadmap for future brain cancer vaccines.” The study reports on the results of a second phase 1 clinical trial, after the first phase 1 trial in 2001 lead by David Andrews, M.D., Professor of Neurological surgery at Jefferson, saw tumor shrinkage in eight out of 12 patients tested. …

Tumor-analysis technology enables speedier treatment decisions for bowel cancer patients

A novel medical-imaging technology, TexRAD, which analyses the texture of tumors, has been shown in trials to enable early diagnosis of those bowel-cancer patients not responding to the standard cancer therapy better than other available tumor markers. Furthermore, the TexRAD markers showed the ability to assess at an early stage the likelihood of survival, distinguishing patients who will have a good prognosis from those having poor prognosis. Dr Balaji Ganeshan, one of the Sussex academics whose research led to the development of the technology, said: “By using TexRAD to scan for subtle anomalies in a tumor’s texture, researchers have been able to spot more quickly when treatments are — or are not — working and adjust treatment accordingly. “And because TexRAD simply provides an additional layer of software analysis of the MRI and CT scans that already exist as part of routine clinical practice, it is non-invasive from the patient’s point of view and potentially cost-effective to the healthcare provider.” The technology is being evaluated in a number of research institutions and university hospitals around the world. …

Promising prognostic biomarker candidates for ovarian cancer uncovered

The first study establishes an association of this often-deadly cancer with the immune system and clarified the role of a class of immunogenic tumor antigens known as cancer testis (CT) antigens, and the second reports new evidence that certain molecular interactions influence ovarian cancer prognosis. In context with recent evidence that the immune system can potently inhibit the growth of cancer cells, these novel findings may enable development of a new strategy for identifying those patients most likely to benefit from particular targeted therapies. “There is a lot of interest right now in what to do with the human genome,” says Kevin Eng, PhD, an Assistant Professor of Oncology in the Department of Biostatistics and Bioinformatics at RPCI who was first author on both studies. …

Gene ‘switches’ could predict when breast cancers will spread to the brain — ScienceDaily

The researchers, based at the University of Wolverhampton, studied 24 breast cancers that had spread to the brain, along with samples from the original breast tumour, and found a handful of genes with faulty switches. Crucially, two of the genetic switches became faulty early on in the development of breast cancer, suggesting they may be an early warning signal for tumours that will spread to the brain. The scientists are now working to develop a blood test that might be able to detect these signals at an early stage, before the disease has spread. …