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Tag: "elderly" at biology news

Johns Hopkins flu expert calls for mandatory vaccination of health care workers

... 40,000 Americans die from influenza, many of them elderly or ill, with weakened immune systems that cannot readily fend off the disease. In an editorial to be published in the journal Infection Control and Hospital Epidemiology online Nov. 9, Trish Perl, M.D., M.Sc., concludes that mass vaccination policie...

How Rickettsial pathogens break into cells

...0 percent of the time, usually in patients who are elderly or who have some other underlying disease. Left untreated, Mediterranean spotted fever can be deadly. Cossart and her team demonstrated that the Ku70 protein on the surface of host cells is critical for R. conorii to enter the cell, making it the fi...

Getting old? Slowing down? Blame inefficient mitochondria

...rtment of radiology. This inefficiency means that elderly people's muscle produce less useable energy (ATP) for every unit of oxygen consumed, making normal activity seem more challenging and limiting their range of activities. ...

For one Stanford doctor, the beat goes on during open-heart surgery

...rticularly well among such high-risk groups as the elderly and, surprisingly, women, Ihnken said. "For reasons not well-understood, women don't do as well during bypass as men," Ihnken said. "Women have double the mortality rates following bypass." Besides his own positive experiences with the technique, I...

Weizmann Institute suggests that immune cells help to maintain cognition and brain cell renewal

...enewal has potential far-reaching implications for elderly populations, because aging is known to be associated with a decrease in immune system function. It is also accompanied by a decrease in new brain cell formation, as well as in memory skills. Therefore, by manipulating and boosting the immune system, ...

Flu not the only germ threat this time of year

...epartment of Medicine, have found that RSV affects elderly and high-risk adults as much as the flu. In a pape...nd Journal of Medicine, they estimated that 14,000 elderly and high-risk adults die annually from an RSV infection, and that the bug is responsible for more th...

Penguins waddle but they don't fall down, UH researchers say

...ry beneficial. "We can envision a scenario where elderly may be able to put their walkers or canes down because they've learned to make the same adjustments in their walking patterns," Kurz said. "This research may aid in developing a way to teach those people how to walk more efficiently despite their sid...

Resveratrol prolongs lifespan and delays onset of aging-related traits in a short-lived vertebrate

...elated diseases and improve quality of life in the elderly is a growing focus of aging research and public health in modern society. But the successful development of drugs aimed at aging-related diseases needs to face the challenge posed by the lifespan of the available animal models--mammalian models for a...

Efficiency, not more doctors, is the prescription for aging population

...aten a shortage of doctors to treat the burgeoning elderly population are wrong, according to researchers at Dartmouth Medical School's Center for the Evaluative Clinical Sciences (CECS). In a study published in the March/April issue of Health Affairs, they argue that if employed efficiently, the current su...

Loosen leash on cancer protein 'watchdog,' researchers say

...e checked for the sort of characteristics that the elderly of many mammal species typically show - thinner skin, lower bone density, spinal hunching and the like," Mendrysa said. "We couldn't find any differences between them and normal mice. And their cancer rates were dramatically lower than expected, whic...

Chocolate milk could be key to longer, healthier life

...er and PhD student Cheryl Murphy, asked a group of elderly kiwis to perform two identical sessions of aerobic exercise on a stationary bike. After one session the participants were asked to drink a mixture of protein and carbohydrate (e.g. sweetened milk) and after the other just carbohydrates. It is well ...

Memory loss affects more of the brain than previously thought

...iles." MCI affects an estimated 15 percent of the elderly population in the United States. Ten to 15 percent...D every year compared to one percent of the normal elderly population. Amnestic MCI is characterized by mild memory impairment and is often confused with ordin...

In-home sensors spot dementia signs in elderly

...ariability in their walking times than the healthy elderly group," and this variability was greater in the afternoon than in the morning, according to the study. This is consistent with earlier studies suggesting that variability in motor measures may predict later-onset dementia. In addition, the elders ...

High-dose flu vaccines appear to safely boost immunity in elderly

High-dose influenza vaccines may increase elderly patients' immune response without significant adve...ient to protect younger adults from influenza, the elderly and others at high risk of hospitalization and death from the disease have not responded consistentl...

Survivors of childhood polio do well decades later as they age

...experience declines greater than expected in their elderly counterparts, but rather experience only modest increased weakness which may be commensurate with normal aging. "Other researchers have suggested that polio is a more aggressive condition later in life, but we've actually found it to be relatively ...

Nanotechnology being used to improve biocompatibility of human prosthetics and implants

...years. The desire for increased activity among the elderly also means increased demands on medical researchers to come up with better ways to keep them active. In the fields of implants and prosthetics calcium phosphate (CP) coatings on titanium alloy implants are proving their worth in orthopaedic and denta...

Bone marrow may restore cells lost in vision diseases

... Researchers want to discover ways to mobilize an elderly patient's own cells to travel to the injury site to make repairs. "The dogma has been that we're born with a fixed amount of RPE, but there is growing evidence retinal progenitor cells exist in the adult," said Lawrence Rizzolo, Ph.D., a Yale Univer...

Healing the heart with bone marrow cells

...f 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 very important imp...

A surprise about our body clock

...f 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 very important imp...

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

...d younger. However, alterations to photos of very elderly hands ?characterized by thin skin, age spots, wrinkles, deformity, veins and prominent joints ?did not change the participants' ability to distinguish the person's age. Overall, the physical characteristic which most commonly gave away age was pr...

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