Body

Measures to assess potential lung injury during ventilation inadequate

Ventilator-induced injury to the lungs can contribute to prolongedrespiratory failure and even death among patients with acute respiratorydistress syndrome (ARDS). Even post-operative patients with previouslyhealthy lungs, who require temporary mechanical ventilation, are at riskof ventilator-induced lung injury. Such injuries have been reducedtremendously during the last 20 years since studies had demonstratedventilators should be set to deliver lower breath volumes (tidalvolumes) so as to reduce the stress and strain on fragile alveolidamaged by ARDS.

Study shows that surgical weight loss does not eliminate obstructive sleep apnea

Westchester, Ill. –A study in the August 15 issue of the Journal of Clinical Sleep Medicine shows that surgical weight loss results in an improvement of obstructive sleep apnea (OSA), but most patients continue to have moderate to severe OSA one year after undergoing bariatric surgery. .Results of this study suggest that it is the severity of the condition, rather than a patient's presurgical weight, that determines if OSA will be resolved.

Study shows that older adult caregivers of people with dementia have worse sleep than noncaregivers

Westchester, Ill.—A study in the August 15 issue of the Journal of Clinical Sleep Medicine shows that the sleep patterns of older adults who live with and provide direct care during the night for a person with dementia are significantly worse than other older adults.

Prototype test for predicting clinical outcome for melanoma patients

Investigators from the Melbourne Center of the international Ludwig Institute for Cancer Research (LICR) and Pacific Edge Biotchnology Ltd today reported that they have developed a test to predict whether a patient will progress rapidly from Stage III melanoma to metastatic Stage IV cancer and death.

English health-care system failing to provide basic care, shows major survey

Research paper: Self-reported receipt of care consistent with 32 quality indicators: a national population survey of adults over 50 years old in England. BMJ Online FirstEditorial: Measuring the quality of healthcare systems using composites BMJ Online First

The NHS and private healthcare are not providing good enough basic care to a large portion of the population in England, especially older and frailer people, according to a study published on bmj.com today.

Overall, only 62% of the care recommended for older adults is actually received, conclude the authors.

Rheb's role in cancer

Two independent papers in the August 15th issue of G&D identify the Rheb GTPase as a novel oncogene and a promising new chemotherapeutic target.

The first paper, from Dr. Pier Paolo Pandolfi (BIDMC and Harvard Medical School) and colleagues, demonstrates that the Ras-like small GTPase, Rheb, is directly involved in prostate tumorigenesis.

Slipping through cell walls, nanotubes deliver high-potency punch to cancer tumors in mice

The problem with using a shotgun to kill a housefly is that even if you get the pest, you'll likely do a lot of damage to your home in the process. Hence the value of the more surgical flyswatter.

Cancer researchers have long faced a similar situation in chemotherapy: how to get the most medication into the cells of a tumor without "spillover" of the medication adversely affecting the healthy cells in a patient's body.

Women and war: The toll of deployment on physical health

ANN ARBOR, Mich.---More than 80 percent of a sample of Air Force women deployed in Iraq and other areas around the world report suffering from persistent fatigue, fever, hair loss and difficulty concentrating, according to a University of Michigan study.

The pattern of health problems reported by 1,114 women surveyed in 2006 and 2007 is similar to many symptoms of Gulf War Syndrome, the controversial condition reported by veterans of the 1991 Persian Gulf War.

Organ donation after cardiac death

(PHILADELPHIA) – The babies were dying – without life support, they might live just another few minutes. Their families had said goodbye, and wanted their newborns to become organ donors, in hopes of saving another tiny life. But the babies' conditions couldn't meet the normal standards for organ donor eligibility. What to do?

Chronic ear infections linked to increased obesity risk

BOSTON—Ear infections are a painful rite of passage for many children. New research suggests the damage caused by chronic ear infections could be linked to people's preference for fatty foods, which increases their risk of being overweight as they age. Scientists from around the country presented their findings on this unexpected connection at the American Psychological Association's 116th Annual Convention here Thursday.

Self-assembling polymer arrays improve data storage potential

MADISON — A new manufacturing approach holds the potential to overcome the technological limitations currently facing the microelectronics and data-storage industries, paving the way to smaller electronic devices and higher-capacity hard drives.

Leishmaniasis parasites evade death by exploiting the immune response to sand fly bites

Cutaneous leishmaniasis, a disease characterized by painful skin ulcers, occurs when the parasite Leishmania major, or a related species, is transmitted to a mammalian host by the bite of an infected sand fly. In a new study from the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health, scientists have discovered L. major does its damage by not only evading but also by exploiting the body's wound-healing response to sand fly bites, as reported in the August 15 issue of Science.

Colon cancer linked to unequal gene activity

COLUMBUS, Ohio – Researchers here have discovered that a subtle difference in the activity of a pair of genes may be responsible for one of every 10 colon-cancer cases.

The work, led by researchers with the Human Cancer Genetics Program at Ohio State University's Comprehensive Cancer Center, is the first to link this particular gene conclusively as a cause of colon cancer, and it may provide clinicians with a new way to identify people who are at high risk for disease.

Scientists discover major genetic cause of colorectal cancer

CHICAGO -- About one-third of colorectal cancers are inherited, but the genetic cause of most of these cancers is unknown. The genes linked to colorectal cancer account for less than 5 percent of all cases.

Scientists at Northwestern University's Feinberg School of Medicine and colleagues have discovered a genetic trait that is present in 10 to 20 percent of patients with colorectal cancer. The findings strongly suggest that the trait is a major contributor to colorectal cancer risk and likely the most common cause of colorectal cancer to date.

Studying volcanoes with balloons

People do all kinds of crazy things in Hawaii, but flying balloons over a volcano usually isn't one of them. Unless you're Adam Durant, that is.

Durant, an adjunct geological sciences faculty member at Michigan Technological University, and colleagues took meteorological balloons to the Kilauea volcano this summer to make the first on-location measurements of volcanic gases as they actually spew from the mouth of the volcano. The Kilauea volcano began erupting in March.