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Tag: "shortage" at biology news

Tiny scaffolding allows stem cells to become working fat cells

...e journal Tissue Engineering. "There is a serious shortage of transplantable organs available for thousands of patients nationally," Kniss said. "One ultimate goal of this work might be creating new tissue that could serve either as a temporary substitute while waiting for a donor organ, or even providing a ...

World-first Living Donor Islet Cell Transplant A Success; Procedure Offers Promise For Diabetics

...ly devoid of serious potential risk," he added. A shortage of donor islet cells is the biggest obstacle preventing implementation for all patients who need it, Shapiro added. The mother of the diabetic daughter was in perfect health, while her daughter has been on the cadaver donors transplant list since Se...

Late peak may have prevented severe flu season from becoming worse

... than the 2002-2003 flu season. Due to an unusual shortage of flu vaccine, the later peak of the 2004-2005 flu season may have been beneficial, allowing public health officials more time to reallocate and administer the limited supply of vaccine to those most in need -- the elderly and children. This extra t...

New type of rejection blocker protects kidneys after transplant

...of this study, considering that we have a critical shortage of organs for transplant," Vincenti said. Kidney transplant is the preferred treatment for most people with end-stage kidney failure. The United Network for Organ Sharing reports that more than 16,000 Americans received a kidney transplant in 2004. ...

Prenatal exposure to famine increases risk of schizophrenia

...hizophrenia among children conceived during a food shortage in Holland in 1944-1945. However, the number of cases in this study was small, and the findings were only modestly statistically significant. David St. Clair, M.D., Ph.D., of Shanghai Jiao Tong University, Shanghai, China, and colleagues conducted a...

Amphetamines reverse Parkinson's disease symptoms in mice

...s movement. That degeneration, in turn, leads to a shortage of the chemical messenger dopamine. The finding that amphetamines can alter movement independently of dopamine opens up new directions in the search for prospective anti-Parkinsonian drugs, the researchers said. The researchers, led by James B. Duke...

A New Era of Hope for the World's Most Neglected Diseases

...sabling, disfiguring, and stigmatizing; there is a shortage of safe and effective treatments; and affected patients have represented the lowest-priority markets for Western pharmaceutical manufacturers. Bernard Pécoul of the Drugs for Neglected Diseases Initiative (DNDi) has called these patients “the forgott...

Sweetgum tree could help lessen shortage of bird flu drug

...pose, one that may help to alleviate the worldwide shortage of shikimic acid," says study leader Thomas Poon, Ph.D., a professor of chemistry from the W.M. Keck Science Center at The Claremont Colleges in Claremont, Calif. "They have lots of potential for fighting bird flu." The sweetgum tree grows widely th...

Sun protection for plants

...hesise. This effect is exaggerated when there is a shortage of water or extreme temperatures. The resulting damage to the delicate photosynthetic membranes in the plant leads to impaired growth, cell destruction and, eventually, plant death. The scientists, funded by the Biotechnology and Biological Sciences ...

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

Recent news reports that threaten 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 t...

Researchers find cause of frontotemporal dementia

...rvival of brain cells, because FTD patients have a shortage of this growth factor. The new finding predicts th...from FTDU families identifies defects that cause a shortage of progranulin. Progranulin is known in cancer research, where a surplus of this protein leads to tu...

Fire ants: Their true story told by the scientist who loves them

...endearing qualities he cites abundance; there's no shortage of lab samples. It's a low-maintenance animal without highly specialized habits; what scientists learn can be applied to other types of ants as well. Naturally, there's no end to public interest in the exotic transplant ?albeit mostly in the form of ...

Rhesus monkeys in Nepal may provide new alternative for HIV/AIDS research

...ide a suitable alternative to alleviate a critical shortage of laboratory animals used in work to develop vaccines against diseases such as HIV/AIDS. Writing in the cover story of the current issue of the American Journal of Primatology, researchers headed by Randall Kyes of the University of Washington rep...

Honey bee genome holds clues to social behavior

...and pollen as they age. However, if the hive has a shortage of foragers, some of the young nurse bees will switch jobs and become foragers. The job transition, whether triggered by age or social cues, involves changes in thousands of genes in the honey bee brain; some genes turn on, while others turn off. ...

An artificial cornea is in sight, thanks to biomimetic hydrogels

...eusis, or LASIK, eye surgery may contribute to the shortage of donor tissue in developed nations, he notes, as this surgery disqualifies donation. A tissue-engineered artificial cornea could lessen or eliminate the need for donor tissue. At least a dozen groups worldwide are working to develop artificial co...

Mechanical 'artificial hearts' can remove need for heart transplant by returning heart to normal

... is not without its shortcomings ?particularly the shortage of donor hearts and the risk of organ rejection. "This therapy has the potential to ease the pressure on the waiting list while also offering patients a better alternative to a donor heart ?their own, healthy heart," she added. Professor Sir...

Liposuctioned fat stem cells to repair bodies

...ch as bone marrow, fat is abundant and there is no shortage of donors. "It’s wonderful, we have litres and litres of material from cosmetic surgery clinics and end up with bucketfuls of stem cells to work with," he notes. EuroSTELLS Project Leader Cesare Galli, from the University of Bologna, Italy has hi...

Resistance to anti-HIV drugs in Uganda developed due to drug supply problems

...lted due to customs issues. A two-week nationwide shortage resulted that created gaps in treatment for some individuals taking that medication. "In a context where the ability of poor people to adhere to medications regimens has been questioned, the issue is not so much about behavioral strategies to incr...

Antifungal drug kills TB bug

...nd Asia where HIV/AIDS is also most prolific and a shortage of traditional TB medicines and problems with patient compliance has led to the emergence of drug-resistant strains of the disease. "There were only ever a limited number of drugs that were effective against TB anyway," said Professor Munro, who i...

Enhancing activity of marijuana-like chemicals in brain helps treat

...n the striatum relies on the chemical dopamine. A shortage of dopamine in the striatum can lead to Parkinson's disease, in which a person loses the ability to execute smooth motions, progressing to muscle rigidity, tremors and sometimes complete loss of movement. The condition affects 1.5 million America...

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