Popular Articles

Bayer Unveils DIDGET(TM), The First And Only Blood Glucose Meter That Connects With The Nintendo DS(TM) Or DS(TM) Lite
Bayer Diabetes Care in the UK and Ireland today unveils "DIDGET(TM), the
buy viagra
Massachusetts Health Insurance Law Has Increased Access To Care, Though Residents' Ability To Obtain Treatment Hampered By Provider Supply, Study Find
Since the implementation of the Massachusetts health insurance law in 2006, more residents have health coverage and increased access to care, but rising health care costs combined with the current economic recession could undermine some of the law"s successes, according to the third annual "Update on Health Reform in Massachusetts" report by the Urban Institute, the Boston Globe reports. The study was funded by the Blue Cross and Blue Shield of Massachusetts Foundation, the Robert Wood Johnson Foundation and the Commonwealth Fund, and published in the journal Health Affairs.For the report, Sharon Long of the Urban Institute and colleagues surveyed about 4,000 Massachusetts adults in 2007 and 2008 and compared their health care habits with those of residents surveyed in 2006 -- just after the law went into effect. Researchers found that although there were initial gains in health care affordability, there are now some signs that an increasing number of state residents are reporting problems paying for medical bills, and an increasing number of people -- especially lower-income residents -- not seeking care because of costs (Lazar, Boston Globe, 5/28). One in five adults reported being told in the past 12 months that a physician or clinic was not accepting new patients or would not see patients with their type of insurance (Sack, New York Times, 5/28). Lower-income residents had more difficulties finding a physician than higher-income residents, with 24% of residents enrolled in state-subsidized health plans, saying they were told that a physician did not accept their insurance, compared with 7% of residents with private coverage (Boston Globe, 5/28). Additional Findings
plan for health
News of the day
Research Team Finds Key Target Of Aging Regulator
Researchers at The Wistar Institute have defined a key target of an evolutionarily conserved protein that regulates the process of aging. The study, published June 11 in Nature, provides fundamental knowledge about key mechanisms of aging that could point toward new anti-aging strategies and cancer therapies.
Public Health

Squid 'Sight' Shedding Light On Symbiosis Affecting Humans

It"s hard to miss the huge eye of a squid. But now it appears that certain squids can detect light through an organ other than their eyes as well. That"s what researchers at the University of Wisconsin-Madison report in the current issue (June 2) of the Proceedings of the National Academy of Sciences. The study shows that the light-emitting organ some squids use to camouflage themselves to avoid being seen by predators - usually fish sitting on the ocean floor - also detects light. The findings may lead to future studies that provide insight into the mechanisms of controlling and perceiving light. "Evolution has a "toolkit" and when it needs to do a particular job, such as see light, it uses the same toolkit again and again," explains lead author Margaret McFall-Ngai, a professor of medical microbiology and immunology at the UW-Madison School of Medicine and Public Health (SMPH). "In this case, the light organ, which comes from different tissues than the eye during development, uses the same proteins as the eye to see light." In studying the squid for the past 20 years, McFall-Ngai and her colleagues have been drawn to the fact that the squid-light organ is a natural model of symbiosis - an interdependent relationship between two different species in which each benefits from the other. In this case, the light organ is filled with luminous bacteria that emit light and provide the squid protection against predators. In turn, the squid provides housing and nourishment for the bacteria. The UW-Madison researchers have been intrigued by the light organ"s "counterillumination" ability - this capacity to give off light to make squids as bright as the ocean surface above them, so that predators below can"t see them. "Until now, scientists thought that illuminating tissues in the light organ functioned exclusively for the control of the intensity and direction of light output from the organ, with no role in light perception," says McFall-Ngai. "Now we show that the E. scolopes squid has additional light-detecting tissue that is an integral component of the light organ." The researchers demonstrated that the squid light organ has the molecular machinery to respond to light cues. Molecular analysis showed that genes that produce key visual proteins are expressed in light-organ tissues, including genes similar to those that occur in the retina. They also showed that, as in the retina, these visual proteins respond to light, producing a physiological response. "We found that the light organ in the squid is capable of sensing light as well as emitting and controlling the intensity of luminescence," says co-author Nansi Jo Colley, SMPH professor of ophthalmology and visual sciences and of genetics. Adds McFall-Ngai, "The tissues may perceive environmental light, providing the animal with a mechanism to compare this light with its own light emission." McFall-Ngai"s large research program into the relatively simple squid-light organ symbiosis aims to shed light on symbiosis affecting humans. "We know that humans house trillions of bacteria associated with components of eight of their 10 organ systems," she says. "These communities of bacteria are stable partners that make us healthy." Both Colley and McFall-Ngai are members of the UW-Madison Eye Research Institute. Dian Land University of Wisconsin-Madison


Add your comment:
Name:
Site address: http://
Your message:
Enter today\\\\'s date, 2 digits
(spam protection):