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Tag: "partially" at biology news

Discovery in orange cauliflower may lead to more nutritious crops

...lity to synthesize beta-carotene, they are limited partially because they lack a "metabolic sink," or a place to store the compound. Developing staple crops with more vitamin A is important because vitamin A deficiency, common in developing countries, leads to compromised immune systems and is the leading ca...

A new plant-bacterial symbiotic mechanism promising for crop applications

...soil. However, a family of plants, the legumes, is partially free of this constraint thanks to its ability to live in association with soil bacteria of the Rhizobium, genus, capable of fixing nitrogen from the air. When these bacteria come into contact with their host plant, they trigger in the roots the forma...

Ancient retrovirus sheds light on modern pandemic

...tes 4 million years ago ironically may be at least partially responsible for the susceptibility of humans to HIV infection today. These findings, reported by a team of researchers at Fred Hutchinson Cancer Research Center in the June 22 issue of Science, provide a better understanding of this modern pandemic ...

Scientists close in on missing carbon sink

... proportion of carbon dioxide from the atmosphere, partially offsetting carbon entering the air through industrial emissions and deforestation. The Science article, "Weak northern and strong tropical land carbon uptake from vertical profiles of atmospheric CO2," was written by an international team of scienti...

Human stem cell treatment restores motor function in paralyzed rats

...“The spinal cord and brain motor centers are still partially connected, but there has been a selective loss of inhibitory neurons in the spinal cord. Since these cells are necessary for coordinated motor activity, our research aims to replace these lost neurons by grafting new spinal stem cells, which repopul...

Chemical maps hint at drug's effects on schizophrenia

...information in the brain. These lipid changes were partially reversed in patients treated with antipsychotic medications, said Joseph McEvoy, M.D., associate professor of biological psychiatry and study co-investigator. "This technique allows us to identify the specific metabolic changes that are caused by ...

The quest for an effective HIV vaccine presents new possibilities, challenges

...immune responses help to control infection is only partially understood. "The development of an HIV vaccine is a complex research challenge because the virus is unusually well-equipped to elude immune defenses," says Dr. Fauci. "Much progress has been made; however, we must continue research efforts to impr...

Researchers find link between food odors and lifespan in fruit flies

...t exposure to food odors can modulate lifespan and partially reverse the longevity-extending effects of dietary...t exposure to food odors can modulate lifespan and partially reverse the longevity-extending effects of dietary restriction in fruit flies. "Not only can they...

Super-fermenting fungus genome sequenced

...o cope with the oxygen-limited environment rich in partially digested wood that is encountered in the gut of insects, from where the sequenced strain was originally isolated. FPL has a Cooperative Research and Development Agreement (CRADA) in place with a New York City-based bioenergy company, Xethanol Corp...

New cell type identified in cancer development

...ms had been knocked out by radiation, but had been partially restored by an infusion of bone marrow cells; and the third group was made up of normal, healthy mice. The results showed that the strength of the immune system affected whether or not the mice got cancer. The scientists found that the pCSCs, like...

Researchers create artificial enzyme that mimics the body's internal engine

...f it adds less than four electrons, it can produce partially reduced oxygen molecules, and these are known to b...ng. "We found that great damage occurred, and that partially reduced oxygen species were produced in large amounts," Collman said. This finding led the researche...

No carrier necessary: This drug delivers itself

...ers found that because HPPH is amphiphillic, i.e., partially soluble in water and oil, nanocrystals of it will self-assemble, that is, in solution the molecules aggregate, but not into such big clusters that they settle to the bottom. "It's a controlled formation of a colloidally stable suspension of nanosiz...

Ethanol vehicles pose a significant risk to human health, study finds

...Angeles and the northeastern United States will be partially offset by decreases in the southeast. ''However, we found that nationwide, E85 is likely to increase the annual number of asthma-related emergency room visits by 770 and the number of respiratory-related hospitalizations by 990,'' Jacobson said. ''Lo...

New insights into autoimmunity and depression

...f tests: a forced swimming test in a glass beaker partially filled water to evaluate escape-oriented behaviors, such as rearing and jumping; rotarod and grip strength tests to gauge motor function; a staircase test; a swim T-maze test to assess cognitive function; and a passive avoidance test to measure the a...

New study is first to link romantic relationships to genes

New research suggests that choosing a mate may be partially determined by your genes. A study published in Psychological Science has found a link between a set of genes involved with immune function and partner selection in humans. Vertebrate species and humans are inclined to prefer mates who have dissimila...

ASU researchers test antibacterial effects of healing clays

... Buruli ulcer disease). The clay was also found to partially inhibit the growth of pathogenic Staphylococcus aureus, including a multi-drug resistant variety. "The other clay actually helps the bacteria to grow," Haydel adds. What makes one clay kill bacteria, and the other promote growth? And why do most c...

Gladstone investigators identify a new protective action for the powerful anti-HIV factor, APOBEC3G

...w strategy against HIV. "If we can find a way to partially block A3G assembly into the large complexes during CD4 T cell activation, we could both preserve the potent anti-HIV effect of the small form of A3G and the protective function of the large A3G complex against select mobile genetic elements," Greene ...

The effects of smoking on fractures and ligament injuries

... injury in normal wound healing, and that this was partially inhibited in mice exposed to cigarette smoke. Based on their findings, the authors suggest that this delay is due to a difference in the recruitment of cells to the site of injury. In addition, the study found that mice exposed to smoke had impair...

Older fathers more likely to have autistic children

... five in 10,000 two decades ago. This increase is partially due to higher levels of awareness and changes in diagnosis processes, but could also reflect an increase in incidence of autism, according to the authors. Older parental age has previously been linked to abnormalities in the brain development of chil...

Researchers link ocean organisms with increased cloud cover and potential climate change

...ientists believe that increased cloud cover may be partially countering the effects of global warming by reduci...ng sunlight, increased cloudiness has up until now partially mitigated the effects of global warming. The role of oceanic biology on cloud formation could theref...

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