http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. If you ever thought the stress of seeing your extended family over the holidays was slowly killing you -- bad news: a new research report in the December 2009 print issue of the Journal of Leukocyte Biology shows that you might be right. Here's the good news: results from the same study might lead to entirely new treatments that help keep autoimmune diseases like lupus, arthritis, and eczema under control. http://www.physorg.com/news178802608.html Medicine & Health Mon, 30 Nov 2009 11:23:54 EST news178802608 A combination of imaging tests conducted six to eight weeks after patients complete chemoradiotherapy for head and neck cancer may help identify patients who will respond to treatment and those who will require surgical follow-up, according to a report in the November issue of Archives of Otolaryngology-Head & Neck Surgery. http://www.physorg.com/news177618910.html Medicine & Health Mon, 16 Nov 2009 19:30:02 EST news177618910 After mastectomy, breast cancer patients who receive radiation treatment to the lymph nodes located behind the breast bone do not live longer than those who do not receive radiation to this hard-to-treat area, according to a randomized 10-year study presented at the plenary session, November 2, 2009, at the 51st Annual Meeting of the American Society for Radiation Oncology (ASTRO). http://www.physorg.com/news176402817.html Medicine & Health Tue, 03 Nov 2009 02:50:01 EST news176402817 High-risk melanoma patients who are treated with radiation after surgery have a significantly lower risk of their cancer returning to the lymph nodes (19 percent), compared to those patients who do not have radiation therapy (31 percent), according to the first randomized study of its kind presented at the plenary session, November 2, 2009, at the 51st Annual Meeting of the American Society for Radiation Oncology (ASTRO). http://www.physorg.com/news176402467.html Medicine & Health Mon, 02 Nov 2009 17:40:03 EST news176402467 Colonoscopy represents one of the great weapons against cancer. In one step, a physician can find precancerous lesions in the colon and then cut them out, an on-the-spot intervention that prevents cancer from developing. Now, researchers at the Winthrop Rockefeller Cancer Institute and the University of Arkansas for Medical Sciences have developed another fiber optic technique that can detect lymph node metastases and destroy them on the spot, an action that could prevent the further spread of breast cancer, melanoma, or gastrointestinal cancer, all of which spread through the lymphatic system. http://www.physorg.com/news176116481.html Nanotechnology Fri, 30 Oct 2009 10:15:06 EST news176116481 Specific cells within the immune system could help explain why younger people are more susceptible to variant CJD, scientists believe. http://www.physorg.com/news174735267.html Medicine & Health Wed, 14 Oct 2009 10:34:53 EST news174735267 Researchers at The Wistar Institute have identified a key gene (KLF17) involved in the spread of breast cancer throughout the body. They also demonstrated that expression of KLF17 together with another gene (Id1) known to regulate breast cancer metastasis accurately predicts whether the disease will spread to the lymph nodes. Previously, the function of KLF17 had been unknown. http://www.physorg.com/news173969331.html Medicine & Health Mon, 05 Oct 2009 13:49:16 EST news173969331 Walter and Eliza Hall Institute researchers have put an end to a 10-year debate over which form of a molecular messenger called Fas ligand is responsible for killing cells during programmed cell death (also called apoptosis). http://www.physorg.com/news173538701.html Medicine & Health Wed, 30 Sep 2009 14:12:47 EST news173538701 Berlin, Germany: Researchers have shown for the first time that patterns of ultrasound signals can be used to identify whether or not cancer has started to spread in melanoma patients, and to what extent. The discovery enables doctors to decide on how much surgery, if any, is required and to predict the patient's probable survival. http://www.physorg.com/news172908892.html Medicine & Health Wed, 23 Sep 2009 08:20:03 EST news172908892 In recent years, several new innovations have been employed in the treatment for women with gynecologic cancer in an effort to preserve fertility. These innovations consist of conservative ovarian staging, embryo/oocyte cryopreservation, hormonal treatment of endometrial cancer, and fertility-sparing radical hysterectomy for women with cervical cancer. http://www.physorg.com/news171212613.html Medicine & Health Thu, 03 Sep 2009 16:08:48 EST news171212613 Researchers led by Dr. Soheil Dadras at the Stanford University Medical Center have developed a novel methodology to extract microRNAs from cancer tissues. The related report by Ma et al, "Profiling and discovery of novel miRNAs from formalin-fixed paraffin-embedded melanoma and nodal specimens," appears in the September 2009 issue of the Journal of Molecular Diagnostics. http://www.physorg.com/news170599789.html Medicine & Health Thu, 27 Aug 2009 14:00:02 EST news170599789 (PhysOrg.com) -- Biomedical researchers at the University of Arkansas and University of Arkansas for Medical Sciences in Little Rock have developed a special contrast-imaging agent that is capable of molecular mapping of lymphatic endothelial cells and detecting cancer metastasis in sentinel lymph nodes. The new material could be used as a more efficient and less toxic alternative to nanoparticles and fluorescent labels used in the non-invasive, targeted molecular detection of normal cells, such as immune-related cells, and abnormal cells, such as cancer cells and bacteria. Findings were published in Nature Nanotechnology. http://www.physorg.com/news170521101.html Nanotechnology Wed, 26 Aug 2009 15:58:52 EST news170521101 Many studies favor an extended lymphadenectomy at the time of a potentially curative gastrectomy for node-positive gastric cancer, and the risk of long-term death tends to decrease when the number of resected lymph nodes increases to about 25. However, few studies have assessed the relative contribution of the total number of resected lymph nodes to the outcome of patients with node-negative gastric cancer. Further studies are needed to know how the numbers of dissected LNs may affect the survival outcome of patients with node-negative gastric cancer. http://www.physorg.com/news170518037.html Medicine & Health Wed, 26 Aug 2009 15:07:51 EST news170518037 (AP) -- Breast cancer patients with even the tiniest spread of the disease to a lymph node have a much higher risk of it recurring years later and may need more treatment than just surgery, new research suggests. http://www.physorg.com/news169316264.html Medicine & Health Wed, 12 Aug 2009 17:30:03 EST news169316264 When Albina Duggan of Bourbonnais, Ill., was diagnosed with Stage IV cancer, it had spread from her liver to her spine and lymph nodes. http://www.physorg.com/news169152201.html Medicine & Health Mon, 10 Aug 2009 23:50:01 EST news169152201 When doctors are managing care for women with breast cancer, the information available to them profoundly influences the type of care they recommend. Knowing whether a woman's cancer has metastasized, for instance, directly affects how her doctors will approach treatment -- which may in turn influence the outcome of that treatment. http://www.physorg.com/news167990291.html Medicine & Health Tue, 28 Jul 2009 10:00:02 EST news167990291 Surgically removing and evaluating an increasing number of lymph nodes does not appear to identify a greater number of patients with stage III colorectal cancer, according to a report in the July issue of Archives of Surgery. http://www.physorg.com/news167326875.html Medicine & Health Tue, 21 Jul 2009 02:50:02 EST news167326875 Mayo Clinic researchers are reporting positive results in early leukemia clinical trials using the chemical epigallocatechin gallate (EGCG), an active ingredient in green tea. The trial determined that patients with chronic lymphocytic leukemia (CLL) can tolerate the chemical fairly well when high doses are administered in capsule form and that lymphocyte count was reduced in one-third of participants. The findings appear today online in the Journal of Clinical Oncology. http://www.physorg.com/news162578349.html Medicine & Health Tue, 26 May 2009 17:41:23 EST news162578349 If we imagine our immune system to be a police force for our bodies, then previous work has suggested that the Lymph nodes would be the best candidate structures within the body to act as police stations - the regions in which the immune response is organised. http://www.physorg.com/news162548684.html Biology Tue, 26 May 2009 09:25:23 EST news162548684 Overall prognosis for gallbladder cancer appears to be improving, although many patients still have incurable disease and poor survival rates, according to a report in the May issue of Archives of Surgery. http://www.physorg.com/news161882928.html Medicine & Health Mon, 18 May 2009 16:29:11 EST news161882928 A study of targeted educational initiatives between the clinical staff at Fox Chase Cancer Center and the hospitals within their Partners program suggest that educational interventions by academic cancer centers can improve quality of care for cancer patients at community hospitals. The study, to be presented at the 2009 Annual Meeting of the American Society of Clinical Oncology, looked specifically at the number of lymph nodes that were surgically removed in colorectal cancer patients at Fox Chase's partner hospitals and the impact that educational initiatives by clinical staff had on improving the number of nodes removed. http://www.physorg.com/news161613026.html Medicine & Health Fri, 15 May 2009 13:31:46 EST news161613026 Breast cancer patients who received chemotherapy prior to surgery had heightened levels of cancer-initiating stem cells in their bone marrow, and the level of such cells correlated to a tumor's lymph node involvement, according to research from The University of Texas M. D. Anderson Cancer Center. http://www.physorg.com/news161609613.html Medicine & Health Fri, 15 May 2009 12:34:17 EST news161609613 A medication that helps stop the growth of new blood vessels has produced dramatic benefits for some patients with aggressive thyroid cancer, research from Mayo Clinic indicates. http://www.physorg.com/news161604248.html Medicine & Health Fri, 15 May 2009 11:05:18 EST news161604248 One of the major sources of drinking water for south-east Queensland is now under the watchful eye of Australia's largest integrated intelligent wireless sensor network. http://www.physorg.com/news161427981.html Technology Wed, 13 May 2009 10:06:52 EST news161427981 A new phase III clinical trial of early stage breast cancer patients has shown that a molecule designed to home in on nearby lymph nodes is just as accurate as current techniques, but faster, more specific and easier to use. http://www.physorg.com/news160994755.html Medicine & Health Fri, 08 May 2009 09:47:03 EST news160994755 In older breast cancer survivors, the number of lymph nodes removed during surgery and the presence of cancer in the lymph nodes were the two factors most directly linked to the development of lymphedema, swelling of the arm and hand, according to a study from the Medical College of Wisconsin's Center for Patient Care and Outcomes Research in Milwaukee, Wisconsin. http://www.physorg.com/news159707077.html Medicine & Health Thu, 23 Apr 2009 12:04:53 EST news159707077 An immune system response that is critical to the first stages of fighting off viruses and harmful bacteria comes from an entirely different direction than most scientists had thought, according to a finding by researchers at the Duke University Medical Center. http://www.physorg.com/news155137707.html Medicine & Health Sun, 01 Mar 2009 13:48:55 EST news155137707 Findings published in the Journal of the American Medical Association by researchers at Thomas Jefferson University show that the presence of a biomarker in regional lymph nodes is an independent predictor of disease recurrence in patients with colorectal cancer. http://www.physorg.com/news154116671.html Medicine & Health Tue, 17 Feb 2009 18:12:03 EST news154116671 (PhysOrg.com) -- How does an e-mail get routed so quickly to its recipient's inbox, or a search query generate relevant Web pages from servers from around the world? Navigating the Internet - or any similar network - generally works most efficiently when routers have knowledge of the network's global topology. Without knowing the links between nodes, it's difficult to determine the shortest path between two nodes. http://www.physorg.com/news154093231.html Physics Tue, 17 Feb 2009 11:41:14 EST news154093231 Penn State's Institute for CyberScience will target large-scale modeling, simulation and data analysis with a terascale advanced computing system, funded by the National Science Foundation's Major Research Instrumentation Program. http://www.physorg.com/news153054390.html Technology Thu, 05 Feb 2009 11:06:53 EST news153054390