http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. Just 40 years ago, more than half of American kids had at least one untreated cavity. That statistic now stands at less than 25 percent, according to the Centers for Disease Control and Prevention (CDC). Most kids today can expect to keep their teeth well into their retirement years. http://medicalxpress.com/news/2013-03-fluoride-millions-mouth-cousin-bay.html Dentistry Thu, 21 Mar 2013 07:38:12 EST news283070285 A process that normally occurs in developing embryos – the changing of one basic cell type into another – has also been suspected of playing a role in cancer metastasis. Now a study from Massachusetts General Hospital (MGH) Cancer Center researchers has associated this process, called epithelial-mesenchymal transition or EMT, with disease progression and treatment response in breast cancer patients. The report also identifies underlying mechanisms that someday may become therapeutic targets. http://medicalxpress.com/news/2013-01-transition-cell-parallels-treatment-response.html Cancer Thu, 31 Jan 2013 14:00:13 EST news278860997 In 2009, more than 30,000 people in the U.S. learned they had cancer linked to the human papillomavirus, or HPV. This virus is best known for causing cervical cancer, but it's also the culprit behind many cancers of the mouth, throat, anus, and genitals. Unlike many forms of cancer, for which we lack the knowledge and tools to prevent, scientists have figured out how to dodge HPV-triggered cancers—by HPV vaccination. Vaccination against HPV thwarts the viruses' spread, wrecking its ability to jump between people. Wiping out HPV could mean shutting down a big source of cancer cases—more than 3 percent of all diagnoses nationwide. http://medicalxpress.com/news/2013-01-hpv-vaccination.html Cancer Mon, 21 Jan 2013 08:40:05 EST news277979447 Joslin Diabetes Center scientists have demonstrated that brown adipose tissue (BAT) has beneficial effects on glucose tolerance, body weight and metabolism. The findings, which may lead to new treatments for diabetes, appear in the upcoming issue of the Journal of Clinical Investigation. http://medicalxpress.com/news/2012-12-brown-adipose-tissue-beneficial-metabolism.html Medical research Mon, 10 Dec 2012 12:00:01 EST news274359138 It is a myth that snus (Swedish snuff) users today have fewer dental caries. On the contrary, some types of nicotine-free snus contain both carbohydrates and starch that increase the risk of cavities. Those are the findings of a thesis from Sahlgrenska Academy, University of Gothenburg, Sweden. http://medicalxpress.com/news/2012-11-myth-snuff-users-today-dental.html Dentistry Mon, 26 Nov 2012 12:37:09 EST news273155820 To prevent the risks in minimally invasive surgery procedures there has been considerable interest in using Master Slave System (MSS), a telesurgical system for catheter guide during interventional radiology. Here the researchers propose using a fail-safe telesurgical system. http://medicalxpress.com/news/2012-10-mechatronic-fail-safe-catheter-blood-circulatory.html Surgery Thu, 11 Oct 2012 07:02:42 EST news269157749 Knowing how tumors evolve can lead to new treatments that could help prevent cancer from recurring, according to a study published today by the Translational Genomics Research Institute (TGen) and Scottsdale Healthcare. http://medicalxpress.com/news/2012-09-clonal-evolution-maxillary-sinus-carcinoma.html Cancer Fri, 28 Sep 2012 17:00:10 EST news268063040 A common bacteria ever-present on the human skin and previously considered harmless, may, in fact, be the culprit behind chronic sinusitis, a painful, recurring swelling of the sinuses that strikes more than one in ten Americans each year, according to a study by scientists at the University of California, San Francisco. http://medicalxpress.com/news/2012-09-links-sinusitis-microbial-diversity-approach.html Diseases, Conditions, Syndromes Wed, 12 Sep 2012 14:00:01 EST news266675084 In order for the body to function, a balance is necessary between the cells that build up the bones in our skeletons and the cells that break them down. In the disease malignant infantile osteopetrosis, MIOP, the cells that break down the bone tissue do not function as they should, resulting in the skeleton not having sufficient cavities for bone-marrow and nerves. http://medicalxpress.com/news/2012-09-gene-therapy-fatal-diseases-children.html Genetics Wed, 05 Sep 2012 11:47:31 EST news266064445 Corticosteroids, frequently prescribed to alleviate acute sinusitis, show no clinical benefit in treating the condition, according to a randomized controlled trial published in CMAJ (Canadian Medical Association Journal). http://medicalxpress.com/news/2012-08-corticosteroids-effective-acute-sinusitis.html Diseases, Conditions, Syndromes Tue, 07 Aug 2012 13:01:39 EST news263563291 Who would have thought that our noses and Microsoft Windows' infamous blue screen of death could have something in common? But that's the case being made by a new research report appearing online in The FASEB Journal. Specifically, scientists now know exactly why we sneeze, what sneezing should accomplish, and what happens when sneezing does not work properly. Much like a temperamental computer, our noses require a "reboot" when overwhelmed, and this biological reboot is triggered by the pressure force of a sneeze. When a sneeze works properly, it resets the environment within nasal passages so "bad" particles breathed in through the nose can be trapped. The sneeze is accomplished by biochemical signals that regulate the beating of cilia (microscopic hairs) on the cells that line our nasal cavities. http://medicalxpress.com/news/2012-07-allergies-biological-response-nose-blue.html Immunology Tue, 31 Jul 2012 10:31:28 EST news262949468 (HealthDay) -- Patients with chronic rhinosinusitis (CRS) have increased free light chain (FLC) concentrations, particularly those with CRS with nasal polyps (CRSwNP), according to a study published online July 5 in Allergy. http://medicalxpress.com/news/2012-07-free-chains-chronic-rhinosinusitis.html Immunology Mon, 16 Jul 2012 18:30:01 EST news261679092 (HealthDay) -- Children who receive dental fillings made from the controversial plastics chemical bisphenol-A (BPA) could undergo small but long-term changes in their behavior, a new study suggests. http://medicalxpress.com/news/2012-07-plastics-chemical-dental-affect-children.html Pediatrics Mon, 16 Jul 2012 18:20:01 EST news261678827 (HealthDay) -- Since 1964, the disparity between black and white children's dental care has narrowed dramatically, a new study finds. http://medicalxpress.com/news/2012-07-racial-gap-kids-dental.html Dentistry Thu, 05 Jul 2012 17:50:01 EST news260726151 (HealthDay) -- More than one in every five Americans has untreated cavities, a new government report shows. http://medicalxpress.com/news/2012-05-americans-untreated-cavities-cdc.html Dentistry Thu, 31 May 2012 09:26:52 EST news257675198 (HealthDay) -- Stephanie Crowe, a mother of three from Croton-on-Hudson, N.Y., still remembers dreading a visit to the dentist as a young girl. It was often a painful experience, and her family's dentist showed little empathy to his smallest patients. http://medicalxpress.com/news/2012-05-dental.html Dentistry Fri, 18 May 2012 13:30:01 EST news256563936 (AP) -- A new report says dental therapists worldwide including those in rural Alaska, offer safe, competent care in locations with rare access to dentists. http://medicalxpress.com/news/2012-04-dental-therapists-worldwide-safe.html Dentistry Tue, 10 Apr 2012 14:01:13 EST news253285263 Do you really want to avoid cavities in your teeth? Try massaging them with a high-fluoride toothpaste after lunch. http://medicalxpress.com/news/2012-03-massage-method-quadruples-tooth.html Dentistry Mon, 26 Mar 2012 09:44:37 EST news251973865 (AP) -- Conjoined twin girls who were separated in a 20-hour operation were in critical condition on Friday and one was in danger of dying, according to the director of the Chilean hospital where they are being treated. http://medicalxpress.com/news/2011-12-chilean-twins-delicate-condition-post-surgery.html Other Fri, 16 Dec 2011 10:30:34 EST news243253820 Scientists from the University of Valencia in Spain have analysed fresh orange juice squeezed by machines in catering establishments. They have confirmed that 43% of samples exceeded the acceptable enterobacteriaceae levels laid down by legislation. The researchers recommend that oranges are handled correctly, that juicers are washed properly and that the orange juice is served immediately rather than being stored in metal jugs. http://medicalxpress.com/news/2011-12-microbial-contamination-orange-juice-bars.html Health Wed, 14 Dec 2011 09:48:48 EST news243078474 (AP) -- A federal appeals court ruled Thursday that most bone marrow donors can be paid, overturning a decades-old law that made such compensation a crime. http://medicalxpress.com/news/2011-12-court-bone-marrow-donors-paid.html Medical research Thu, 01 Dec 2011 16:50:01 EST news241977643 (AP) -- More than 5,000 people are expected to show up for free medical care at a Los Angeles arena starting Thursday. http://medicalxpress.com/news/2011-10-free-la-medical-clinic-uninsured.html Health Thu, 20 Oct 2011 07:00:02 EST news238309043 A team of researchers from the University of Utah and Brigham Young University has developed a mouse model of focal dermal hypoplasia, a rare human birth defect that causes serious skin abnormalities and other medical problems. This animal model not only provides insight into studying the cause of focal dermal hypoplasia (FDH), but also offers a novel way to study a signaling pathway that is crucial for embryonic development. http://medicalxpress.com/news/2011-07-animal-rare-genetic-disorder-pathway.html Medical research Wed, 20 Jul 2011 14:13:58 EST news230390023 A team of scientists has developed a way to coax tumor cells in the lab to grow into 3-D spheres. Their discovery takes advantage of an earlier technique of producing spherical cavities in a common polymer and promises more accurate tests of new cancer therapies. http://medicalxpress.com/news/2011-06-d-tumor-cancer-drug.html Cancer Wed, 08 Jun 2011 14:57:05 EST news226763811 A team of scientists from Boston has confirmed that the bacterium Streptococcus mutans is a primary culprit in early childhood caries (EEC) cavities on the first set of teeth, and has identified a new species of bacterium, Scardovia wiggsiae, which they suspect is also a major contributor. They report their findings in the Journal of Clinical Microbiology. http://medicalxpress.com/news/2011-05-dental-cavity-causing-species.html Medical research Tue, 17 May 2011 11:00:01 EST news224847479