Energy and sports drinks attack enamel
...r, the same drinks that claim to recharge the body after a workout could cause more irreversible damage to teeth than soft drinks. A study of the effects some of these beverages had on enamel, appearing in the January/February 2005 issue of General Dentistry , the Academy of General Dentistry's (AGD) cli...Strengths and failings of U.S. health care 'system' are driven by embedded vested interests
... hospital chains, and clinical practice guidelines after a public backlash against managed care. The researchers detail the ways in which organizational, cultural, and professional forces shape the health and medical markets, even as corporate interests transform health care and the health professions. Vie...Alcohol relapse adversely affects 10-year liver transplant survival
...tudy on how alcohol relapse affects survival rates after liver transplants found that it adversely affected survival rates only after 10 years. The decrease in survival rates may, however, be due to other alcohol-related diseases. The...Donor age has no affect on long-term liver transplant survival
...onor age on survival and recurrence of hepatitis C after liver transplantation found that it influenced sho...atitis C are invariably re-infected with the virus after transplantation. When the disease recurs it often has a more rapid and aggressive course than in pat...Envisat enables first global check of regional methane emissions
...portant 'anthropogenic' or man-made greenhouse gas after carbon dioxide. Methane is among the six greenhouse gases addressed by the Kyoto Protocol that went into operation last month. Methane traps heat over 21 times more heat per molecule than CO2. The amount of methane in the atmosphere has more than do...Giant iceberg B-15A edges past floating ice pier
...rld's largest floating object is adrift once more after two months aground on a shallow seamount. This latest development poses a renewed threat to the nearby pier of land-attached ice known as the Drygalski ice tongue. The sheer scale of B-15A is best appreciated from space. The bottle-shaped Antarctic i...Storage time and temperature effects nutrients in spinach
...ch at 39 degrees still loses much of its nutrients after eight days. The average temperature of a refrigera... 39 degrees retained only 53 percent of its folate after eight days. When it was kept at higher temperatures, the spinach lost its nutrients at an accelerat...Patient with drug-resistant form of HIV identified
...to antiretroviral drugs. Rapid progression to AIDS after infection with HIV-1 has been previously described, as has the transmission of multidrug resistant viruses. However, the unique feature of this report is the combination of these two features multidrug resistance and rapid clinical course to AIDS. ...Men with severe sleep breathing disorder have higher risk of heart problems
... treated with CPAP and healthy participants-- even after adjustment for potential confounding factors. Dr Marin concludes: "The results of this large, long-term, prospective controlled study suggest that in untreated men with severe obstructive sleep apnoea-hypopnoea, the risk of fatal and non-fatal cardi...Medically supervised drug injection facilities safer for users
...y and the difference only emerged during follow-up after the facility had opened. Dr Kerr concludes: "We have shown that use of a medically supervised safer injection facility was independently associated with reduced syringe sharing in a community-recruited sample of injection drug users who had similar r...The European Society of Cardiology launches Women at Heart
...ut it does strike. And then it is often too late, after years of unhealthy living, such as insufficient ex...n important role up until the menopause. However, after the menopause, the risks increase significantly and need to be delicately managed. In many women, th...Epidemiologist Trichopoulos receives $5.8 million Department of Defense 'Innovator Award'
...breast cancer risk whether infant growth shortly after birth, when the number of undifferentiated mammary cells susceptible to cancer is likely to change, is associated with future breast cancer risk whether mammographic patterns, reflecting mammary gland mass, are associated with perinatal characteris...Invasive pneumonia and antibiotic resistance decreased after childhood vaccine introduced
...n both vaccinated children and unvaccinated adults after the vaccine was introduced. The research, led by ... end of 2000. Antibiotic resistance in pneumonia, after increasing steadily in Atlanta from 4.5 per 100,000 in 1994 to 9.3 per 100,000 in 1999 (more than 25...Virginity pledges do not reduce STD risk: May encourage high risk sexual behavior
... less likely to be diagnosed. "Putting a condom on after getting an infection does not make the infection go away," said Brckner. Pledging may lead some young adults to engage in alternative sexual behaviors in order to preserve their virginity. Among virgins--those who have not had vaginal intercourse--ma...Specialist care gives better rate of survival
...he researchers discovered that patients discharged after their first hospital stay for heart failure had significantly better outcomes if they received regular cardiovascular follow-up visits with a physician. Those who saw both a family practitioner and a specialist had the lowest mortality rates, even wi...Mechanism of RNA recoding: New twists in brain protein production
... letter. Sometimes, the genetic recipe gets edited after cells copy DNA to RNA--a close chemical relative--during transcription. Think of DNA as an unalterable "read only" copy of the genetic code and the RNA as a "writable" working copy that cells can edit extensively--adding, deleting, and modifying the ...Brain imaging study may hold clues to onset of schizophrenia in people at high risk
...ctivity in specific brain areas before, during and after the presentation of the visual target events. "Our goal was to see if the high-risk individuals showed normal brain activity during these executive tasks or whether or not they showed some of the pathology of individuals who already have schizophren...Chemists identify immune system mechanism for methamphetamine binges
...he capacity to have a decreased response to a drug after prolonged use. Increased drug tolerance raises the likelihood that a person will become addicted. "Right now, there's nothing really effective in getting people off methamphetamine," says Janda, who believes that highly specific methamphetamine antib...Stroke awareness low among women, especially minorities
...hemic stroke if patients arrive at a hospital soon after the onset of symptoms. Comparable figures were 84 percent for African-American and 79 percent for Hispanic women. "These data support the need for targeted educational programs on the warning signs of stroke and underscore the importance of public h......r, racial differences in treatments persisted even after adjustment for these factors," Sonel said. "Other possible explanations for the observed disparities that were not assessed as part of this study include patient preferences, physician knowledge and attitudes, including the potential for racial bias...