Body

From microns to centimetres

TORONTO, Ontario (July 31, 2012)– UofT researchers Axel Guenther Associate Professor in the Department of Mechanical and Industrial Engineering, cross-appointed to the Institute of Biomaterials and Biomedical Engineering (IBBME), and Milica Radisic, Associate Professor at IBBME and the Department of Chemical Engineering and Applied Chemistry, along with graduate students from their labs—Lian Leng, Boyang Zhang, and Arianna McAllister—have invented a new device that may allow for the uniform, large-scale engineering of tissue.

Study of zebra fish mouth formation may speak to Fraser syndrome hearing loss

EUGENE, Ore. -- (July 31, 2012) -- Using mutant zebra fish, researchers studying the earliest formation of cartilage of the mouth believe they may have gotten a look at a mechanism involved in a genetic defect linked to Fraser syndrome deafness in humans.

Being paranoid about office politics can make you a target: UBC research

People who worry about workplace rejection or sabotage can end up bringing it upon themselves, according to University of British Columbia research.

The UBC Sauder School of Business study reveals that paranoia about negative gossip or being snubbed leads people to seek out information to confirm their fears, ultimately annoying colleague and increasing the likelihood they will be rejected or subverted.

Report: Captive lion reintroduction programs in Africa operate under 'conservation myth'

New York, NY - A new report published in the international conservation journal Oryx concludes that commercial 'wildlife encounter' operations across Africa promoting the reintroduction of captive lions do little to further the conservation of African lions in the wild.

Seniors with serious illness find smoking, drinking tough habits to break

A recent study of adults age 50 to 85 found that only 19 percent of those diagnosed with lung disease quit smoking within two years. Furthermore, the research showed that the vast majority of older adults who learn they have a chronic condition do not adopt healthier behaviors, according to data presented in the Journals of Gerontology Series B: Psychological Sciences and Social Sciences.

Camouflage of moths: Secrets to invisibility revealed

Moths are iconic examples of camouflage. Their wing coloration and patterns are shaped by natural selection to match the patterns of natural substrates, such as a tree bark or leaves, on which the moths rest. But, according to recent findings, the match in the appearance was not all in their invisibility.

Can herbal products provide sun protection?

New Rochelle, NY, July 31, 2012—Recent research supports the ability of some herbal agents, taken orally or applied topically, to prevent sunburn and limit the damage caused by excessive exposure to ultraviolet (UV) light. Natural products with proven and promising photoprotective properties are highlighted in an article in Alternative and Complementary Therapies, published by Mary Ann Liebert, Inc., publishers.

Computational analysis identifies drugs to treat drug-resistant breast cancer

HEIDELBERG, 31 July 2012 – Researchers have used computational analysis to identify a new Achilles heel for the treatment of drug-resistant breast cancer. The results, which are published in Molecular Systems Biology, reveal that the disruption of glucose metabolism is an effective therapeutic strategy for the treatment of tumours that have acquired resistance to front-line cancer drugs such as Lapatinib.

To know a tiger is at least to start tolerating them, study shows

To protect a dangerous and endangered animal -- be it a tiger in Nepal or a wolf in Michigan - you really do have to ask people "how do you FEEL about your predatory neighbor?"

Effective conservation calls for not only figuring out what protected species need – like habitat and food sources. It also requires an understanding of what it takes for their human neighbors to tolerate them. A Michigan State University doctoral student studying tigers in Nepal found that those feelings can provide critical information on how best to protect species.

Canadians super-sizing Canada's Food Guide servings: York University study

TORONTO, July 31, 2012 – Think you know what one serving of food looks like? You may want to think again, according to a new study from York University.

Asthma is the most common chronic disease among Olympic athletes

Based on data from the last five Olympic games, a study by the University of Western Australia has identified those athletes with asthma and airway hyper-responsiveness. With a prevalence of around 8% they are the most common chronic conditions among Olympic athletes, and could be related to intense training.

IL-10 from donor skin cells helps the body incorporate skin grafts

Scientists have found that the anti-inflammatory molecule, IL-10, may improve success rates of skin autografts (skin moved from one site of the body to another). This information provides a valuable drug target that may benefit burn and accident victims. Specifically, researchers from Portugal and Brazil show that IL-10 plays an important role in whether or not an isogenic skin graft (skin from one individual grafted into another genetically identical) is successful and that the cells responsible for this effect are from the donor skin and not from any tissue of the recipient.

Men with large waists face an increased risk of frequent urination

Men with large waists urinate more frequently than their slimmer counterparts, according to research in the August issue of the urology journal BJUI.

Researchers from Weill Medical College, Cornell University, New York, found that men with waists measuring 100cm plus reported up to three times more urinary problems than men with waists of 90cm or less.

They also found that larger waist measurements were associated with a greater prevalence of high blood pressure, cardiovascular disease, type 2 diabetes and erection and ejaculation problems.

Sick from stress? Blame your mom… and epigenetics

If you're sick from stress, a new research report appearing in the August 2012 issue of The FASEB Journal (http://www.fasebj.org) suggests that what your mother ate—or didn't eat—may be part of the cause. The report shows that choline intake that is higher than what is generally recommended during pregnancy may improve how a child responds to stress. These improvements are the result of epigenetic changes that ultimately lead to lower cortisol levels.

Stress during pregnancy leads to abdominal obesity in mice offspring

A new report involving mice suggests that a relationship exists between maternal metabolic or psychological stress and the development of obesity, type 2 diabetes, and metabolic syndrome in her offspring. What's more, the report shows that if the stress cannot be reduced or eliminated, manipulating the neuropeptide Y (NPY) system in visceral fat may prevent maternal stress-induced obesity from occurring in the next generation.