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Tag: "age" at biology news

Recurrence of a flu pandemic similar to infamous 1918 flu could kill 62 million

...come and population changes, as well as changes in age structures within different populations, the research team estimated that if a similarly virulent strain of flu virus were to strike today, about 62 million people worldwide would die. This could represent a devastating impact on global mortality,...

New biologic treatment for tennis elbow may replace surgery for chronic sufferers

...tennis elbow for 15 months and the average patient age was 48 years. Their baseline score on the pain sc...ms in this group was 12 months and average patient age was 42 years. Their baseline score on the pain scale was 86. Twenty-four hours post-treatment bot...

Ecstasy can harm the brains of first-time users

...DA) found that 450,000 people in the United States age 12 and over had used ecstasy in the past 30 days. In 2005, NIDA estimated that 5.4 percent of all American 12th graders had taken the drug at least once. Ecstasy targets neurons in the brain that use the chemical serotonin to communicate. Seroton...

Why Popeye only has eyes for spinach

... affect up to 12% of men and 29% of women over the age of 75. "The macula is a small area of the retina...ossible. The main risk factors for the disease are age and heritance but it is also linked to controllable factors such as poor diet, smoking and obesity. ...

Radiologists attempt to solve mystery of Tut's demise

...of the CT images, researchers estimated King Tut's age at death to be between 18 and 20 years. His height was 180 centimeters or approximately 5 feet 11 inches. The researchers discovered a possible premortem fracture to the femoral (thigh) bone. While they cannot assess how the injury occurred, the find...

Incidence of stroke decreases over last 50 years

...thrombotic brain infarctions (ABI) in participants age 55 to 94 years decreased over the 3 periods. The i... periods, the lifetime risk of clinical stroke (by age 90 years) decreased from 19.5 percent to 14.5 percent in men age 65 years and from 18.0 percent to 1...

A transplant in time

...ion. The scientists also found that tissue of this age exhibits optimal growth potential as well as secreting factor VIII, the blood-clotting protein missing in hemophilic patients. Thus, the scientists fixed the ideal time for spleen transplantation at 42 days. Hemophiliac mice with spleen tissue trans...

Smoking changes brain chemistry

...e spectroscopy (MRS) to study 21 men and 22 women, age 21 to 59, in a smoking cessation program two weeks after quitting and again six months later. Patients were encouraged to use nicotine patches during the initial six weeks of smoking cessation; however, only 36 of the patients complied. Proton MR...

A new jump start for aging blood vessels

..., even in otherwise healthy individuals. Advanced age is also associated with increased levels of TNFa, a protein that can attack and destroy tumor cells but can also exacerbate chronic inflammatory diseases. To date, no studies have investigated the potential beneficial effects of TNFa inhibition in v...

What animals can tell us about hemorrhage, organ transplants and aging

...ng- and short-lived species to understand how they age at different rates, said Deborah Kristan of California State University at San Marcos. Kristan will co-chair the session with Rochelle Buffenstein of the City College of New York. Much of the early aging research was done on short-lived animals, be...

Three-in-one virus killer prevents common, often fatal infections

...re susceptible to adenovirus infections than other age groups. ...

Study of gene transfer for erectile dysfunction shows promise

...en between 40 and 70 years old and 70 percent over age 70 may have ED. The new therapy is a potential alt...ne. Men ranged from 42 to 80 years old with a mean age of 59. Six subjects were white, four were black and one was Hispanic. In half of the subjects, the c...

Obesity levels in US are grossly underestimated

...restimate their height more than women in the same age group. In 2002, the corrected prevalence of obesity in the U.S. population was 28.7% for adult men and 34.5% for adult women, more than 50% higher than previously estimated. The research, which presents the first-ever corrected estimates of obesity...

Breastfeeding boosts mental health

...problem at 2 years of age, a 55% increased risk at age 6, at age 8 the increased risk was 61% while at age 10 the increased risk was 37%. The analysis is based on...

Light-sensitive photoswitches could restore sight to those with macular degeneration

...ness in the United States. One in four people over age 65 suffers vision loss as a result of this condition, the most common diagnosis being macular degeneration. The chemistry at the core of the photoswitch is a molecule - an azobenzene compound - that changes its shape when illuminated by light of di...

The appearance of your hands can reveal your age, study finds

... study, most people can accurately tell a person's age by viewing only their hands. "A primary motivatio... participants were able to accurately estimate the age of each woman in the unaltered photographs. Participants were also asked to compare digitally alter...

US infant mortality rate fails to improve

... birthweight births." Birthweight and gestational age are two major predictors of infant health and survival. In 2003 birth defects, as well as prematurity and low birthweight remained the leading causes of infant death, according to the NCHS. The percentage of infant deaths occurring to babies born pr...

Cutting calories slightly can reduce aging damage

... just enough to prevent weight gain with advancing age - can have beneficial effects against aging. From a scientific perspective, he added, it is important to learn that RNA is a very good marker of aging damage. "I'd never really thought about RNA before," Holloszy said. "Research has always looked at...

A surprise about our body clock

... the number of c-kit positive cells decreases with age and that elderly patients don't recover from heart attacks as well as younger patients. The key for the older patients would be to find new ways to restore this particular subset of cells in their bone marrow," said Dr. Fazel. "These findings have v...

Healing the heart with bone marrow cells

... the number of c-kit positive cells decreases with age and that elderly patients don't recover from heart attacks as well as younger patients. The key for the older patients would be to find new ways to restore this particular subset of cells in their bone marrow," said Dr. Fazel. "These findings have v...

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