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Tag: "untreated" at biology news

Israeli scientists successfully transplant frozen-thawed ovaries in sheep

...RI) on one sheep with a transplanted ovary and one untreated control sheep. It showed that the transplanted ovary contained small oocyte follicles, and although a little smaller than the ovary in the control sheep it was within the normal range. The blood vessels were also intact. "Adhesions on the transplant...

Gene therapy reverses genetic mutation responsible for heart failure in muscular dystrophy

...provements in heart muscle structure. In contrast, untreated hamsters had severe structural and tissue abnormal...n endurance and lifespan of the treated versus the untreated hamsters. The AAV-8-treated hamsters were able to run the same distance as normal hamsters before ti...

Gene therapy works in mice to prevent blindness that strikes boys

...nd found cyst formation was clearly evident in the untreated eyes, but the treated eyes appeared healthy. The eye's photoreceptor cells - the rods and cones that help the brain process light and color - were spared from the disease and the connections between the layers of the retinas were intact. In addition...

Study uncovers placental microtransfusions lead to transmission of AIDS virus during childbirth

...etween 25 percent and 35 percent of babies born to untreated HIV-infected mothers become infected themselves. That's a half million newborn worldwide every year facing chronic illness and premature death on their first day out of the safety of the womb. "The question has always been how does the virus get fr...

Researchers: Treated wood poses long-term threat

...amination was 100 times higher than runoff from an untreated deck. Not only that, but a layer of sand underneath the deck had arsenic levels 15 to 30 times higher than background levels, while water that percolated through the sand also was contaminated by the toxic metal. "Only a small fraction leaches in a...

Model identifies genes that induce normal skin cells to become abnormal

...etic changes between normal skin cells grown on an untreated matrix and those exposed to a matrix preconditioned by human metastatic melanoma cells, further supporting the hypothesis that "epigenetic" induction of changes in skin cell gene expression is directly related to exposure to the metastatic microenvir...

Expert dispels bird flu paranoia

... Don't eat raw or undercooked chicken. Don't use untreated water, use clean town water or bore water. "Consumers of poultry meat and egg products should not be concerned as the risk of infection from eating poultry products is extremely low," Dr Doneley said. "The avian influenza virus, like most other...

Mouse study: New muscle-building agent beats all previous ones

...o develop muscles 25 percent larger than those of untreated mice after five weeks or more of treatment. The r...lyzed, the treated mice's muscles were bigger than untreated mice by 39 percent (the gastrocnemius [calf] muscle) to 61 percent (the triceps). After just one we...

BiovaxID?yields 89 percent survival in patients with aggressive non-Hodgkins

..., open-label Phase 2 clinical study, patients with untreated mantle cell non-Hodgkin's lymphoma (NHL) were administered six cycles of dose-adjusted EPOCH-R, a chemotherapy regimen that includes Rituxan® (rituximab). Of the 26 patients in the study, 23 received vaccinations with BiovaxID commencing at least th...

Ancient fossil DNA found preserved in crystal

...served and contains longer fragments than DNA from untreated ground bone. The technique for reading the DNA wor...uld be preferred, whenever possible, over DNA from untreated bone. This method holds much promise for the future analysis of ancient DNA in bones in yielding mo...

Study fishes out new role for prostaglandins

...tly. The resulting embryo was also shorter than an untreated embryo. "What is spectacular," said Solnica-Krezel, "is that…if you just put some prostaglandin back in the culture medium, you rescue the phenotype." In another set of embryos, the researchers blocked prostaglandin receptors, EP2 and EP4. Blocki...

Experimental drug reverses key cognitive deficits, pathology in Alzheimer's

...e treated mice performed significantly better than untreated knockout mice on the task. Significantly, found the researchers, the poorer performance of the untreated mice resulted from their relative inability to remember from day-to-day the location of the platform...

Brain enzyme treatment relieves memory lapse in Alzheimer's mice

...ed in the box. The differences between treated and untreated mice persisted 7, 14, and 21 days after exposure to the electric shock, they reported. On the other hand, the mice showed no differences in response to the auditory tone, suggesting variation among brain regions in the role of Uch-L1. In mice wit...

UF scientists restore sight to chickens with blinding disease

... responded to light. In comparison, tests on three untreated chickens showed no meaningful responses. "This is an interesting gene-transfer technique that appears to restore function to light-sensitive cells in the retina," said Dr. Paul A. Sieving, director of the National Eye Institute of the National Insti...

Acid rain causing decline in sugar maples, say researchers

...e few years following treatment, compared with the untreated neighboring plot. The researchers also found that the communities of mycorrhizae -- soil fungi that help provide more nutrients to plant roots -- were substantially greater around the roots of both seedlings and mature sugar maples in the treated p...

Gene therapy prevents the onset of diabetic symptoms in mice

...e few years following treatment, compared with the untreated neighboring plot. The researchers also found that the communities of mycorrhizae -- soil fungi that help provide more nutrients to plant roots -- were substantially greater around the roots of both seedlings and mature sugar maples in the treated p...

Epstein-Barr virus might kick-start multiple sclerosis

...and colleagues began by collecting T cells from 20 untreated patients with MS and 20 volunteers who had been infected by Epstein-Barr virus but did not have the autoimmune disease. They then isolated from each patient the T cells that specifically responded to EBNA1. A series of experiments revealed a patter...

Better sludge through metagenomics

...gs go wrong, the environment can be inundated with untreated phosphorous, carbon, and nitrogen--the detritus of human activities--necessitating costly and environmentally taxing remedies and exposing the public to potential disease hazards. The scale is daunting--more than 31 billion gallons of wastewater are ...

Other patients bear the real cost of Herceptin

...they found £500,000 from another source. “These untreated patients will be people we know,?say the authors. “We will be the ones to tell them they are not getting treatment that has been proved to be effective and which costs relatively little, because it is not the treatment of the moment.? These results...

Researchers examine why food tastes bad to chemotherapy recipients

...esting methods for the daily monitoring of raw and untreated water. Now she is hoping to work with medical personnel as she, Duncan, and Lee compare the sensory thresholds, recommended nutritional levels, and adverse health effect levels of iron and copper in water, and their relationship to health-based prob...

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