late 2 4

Tag: "late" at biology news

End of deforestation in view? Experts advance new way to size up global forest resources

...a from 96 million to 143 million hectares from the late 1970s to the early 2000s. Other Asian countries that have made the transition include South Korea and Viet Nam. Taken as a whole, the Asian continent recently experienced forest transition, having lost 792,000 hectares of forest between 1990 and...

Giant insects might reign if only there was more oxygen in the air

...eory that some insects were much larger during the late Paleozoic period because they had a much richer oxygen supply, said the study's lead author Alexander Kaiser. The study, "No giants today: tracheal oxygen supply to the legs limits beetle size,'' will be presented Oct. 10 and 11 at Comparative Physi...

Children of allergy sufferers prone to same problem

...n shown to be more important than sensitization in late childhood for the development of wheezing symptoms and asthma." ...

Leading reason for corneal transplants comes into focus

...The Indiana family members developed their disease late in life, women were mostly affected, and those who were had large bumps, or guttae, on the back of the cornea. The Virginia family had severe early disease with men and women equally affected, and the cornea had smaller, finer bumps." Gottsch is l...

Down syndrome: It's not just the age factor

... older mothers who had already had children. Only late first pregnancies were more likely to produce a Down Syndrome baby, not late second or third pregnancies. In addition, the larger the gap between pregnancies, the higher the r...

The biggest bug in gut discomfort

... in the early endosomal marker EEA-1, and then the late endosomal marker Lamp-1. Was C. jejuni trafficking to conventional lysosomes after all" To check, the researchers fed traceable dyes to infected cells. Taken up into the endocytic pathway, the fluorescent dyes co-localized with control bacteria known...

Mass vaccination unnecessary in the event of a large bioterrorist US smallpox attack

...mpaign to eradicate smallpox from the world in the late 1970s, served as a consultant to the committee, known as the Smallpox Modeling Working Group. The group was convened by the Secretary's Advisory Council on Public Health Preparedness, a branch of the U.S. Department of Health and Human Services. "...

Two central mysteries in genome inheritance solved at UCSD

...somes during cell division, first described in the late 1800s and familiar to all high-school students from movies shown in biology classes, has long fascinated biologists. However, the molecular nature of a key component of cell division, the "chromosome-spindle" connection, which is critical for the in...

Experimental cancer drugs counter muscle deterioration seen in muscular dystrophy

...dren with Duchenne muscular dystrophy die in their late teens or early 20s. The disease currently has no cure. "We have identified a new rationale for treating muscular dystrophy, aimed at correcting the devastating effects of a single flawed gene," said Puri. "This is a significant advance over the use ...

Researchers barcode DNA of Venice museum's vast fungi collection

... when the Venice Society of Mycology formed in the late 1980s to monitor the mycological flora in the Lagoon of Venice and surrounding areas. The collected samples represented over 1,200 species of fungi and formed the foundation of the museum's present collection. Garbelotto noted that the relatively ...

Brain protein improves stroke symptoms in rats, even when injected after 3 days

...how that G-CSF can be effective when injected this late after a stroke event. Armin Schneider from Sygnis Bioscience AG (formerly known as Axaron Bioscience AG) in Heidelberg, Germany, and Wolf-Rüdiger Schäbitz from the Neurology department in Münster, Germany, together with colleagues from the univers...

Proteins anchor memories in our brain

...inic, we are usually looking at it in a relatively late stage. Tissue is already damaged, antigen expression is ramped up and the immune response is spreading to other self-antigens," Anderson said. "If we can also train our focus on the thymus, where we know at least some of the autoimmune disease is tri...

Autoimmune disease triggered if T cells miss a single protein early on

...inic, we are usually looking at it in a relatively late stage. Tissue is already damaged, antigen expression is ramped up and the immune response is spreading to other self-antigens," Anderson said. "If we can also train our focus on the thymus, where we know at least some of the autoimmune disease is tri...

Critical hearing gene helps send auditory messages to brain

...ers to conclude that "otoferlin is essential for a late step of [neurotransmitter release] and may act as the major [calcium] sensor triggering membrane fusion at the inner hair cell ribbon synapse." The findings also have therapeutic implications, as they suggest that people who are deaf as a result of...

Buildup of damaged DNA in cells drives aging

...mage and aging began almost serendipitously in the late 1990s while Dr. Niedernhofer was a post-doctoral fellow in Dr. Hoeijmakers?laboratory at Erasmus Medical Center, a well-known European center for medical genetics, including the diagnosis of people with unusual sensitivity to sunlight. A German ...

Insulin receptor stops progression of Alzheimer's disease

...nte says. Treatment is not likely to work in the late stages of the disease, she says, because the cells have already died. ...

Mayo Clinic study suggests that a central nervous system viral infection can lead to memory deficits

...idence that this infection can lead to memory loss late in life. The study, which was conducted in animal ...n could possibly have a permanent effect on memory late in life. "Our study suggests that virus-induced memory loss could accumulate over the lifetime of a...

Development of gene therapy

Since the late 1980s, gene therapy, more than virtually any other type of therapy, has given rise not only to high expectations of treatment success but also great concerns regarding health risks. Since the Deutsche Forschungsgemeinschaft (German Research Foundatio...

A transplant in time

...erentiated, may form tumors, while those taken too late can be identified as foreign, causing the host to reject them. By taking spleen tissue from embryonic pigs over the course of gestation, they found that the harmful T cells are not present in the tissue prior to day 42 of gestation. The scientis...

Pure carbon nanotubes pass first in vivo test

...udy, Weisman and colleagues at Rice, including the late Professor Richard Smalley, discovered that nanotubes fluoresce, or emit near infrared light. Because near-infrared light passes harmlessly into the body, biomedical researchers are keen to use carbon nanotubes for the noninvasive diagnosis and treatm...

1 2 3 4 5 6 7 8 9 10