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Tag: "comes" at biology news

Solution to bacterial mystery promises new drugs

...f an oddball rather than in the mainstream when it comes to how it makes membranes." E. coli fuses a molecule called G3P with a fatty acid in a single step. Rock's team showed that gram-positive pathogens first use PlsX to synthesize a compound called fatty acyl-phosphate, then use PlsY to transfer the fa...

Math model predicts cancer behavior

...y removed with curative success. "When a patient comes in with a tumor, we'd like to understand for that particular tumor, what are the chances that metastasis is going to occur," Quaranta said. "Does that patient need to be treated very aggressively, or not so aggressively"" Today, a tumor's size and ...

New clues to how sex evolves

... their proper partner," says Dernburg. When it comes to the evolution of sex in C. elegans and its relatives, "we haven't yet figured out what makes each chromosome unique," Dernburg says. But the evidence is strong that the answer, as far as the worm is concerned, lies on the chromosomes' Pairing Cent...

Newts which regrow their hearts

...rking with Thomas Braun in Nauheim. This amphibian comes from the wetlands of North America, but it also fe...suspect that the signal for the de-differentiation comes from the area where the wound is healing and the cells communicate with each other," explains Braun....

Heavy smoking cuts women's chance of pregnancy -- even with donated oocytes

...a team of fertility experts in Portugal and Spain, comes as a result of comparing the pregnancy rates between non-heavy smokers and heavy smokers, all of whom received donated oocytes. Smoking has long been known to affect female fertility, but this study is believed to be the first to examine the impac...

Fishy cooperation

...e often when hungry. The observed role division comes "naturally" to two predators with different huntin...egard, these two reef predators show us that if it comes to survival, highly intelligent solutions are within the reach of animals as different from us as fi...

Newly identified biomarker detects and regulates spread of brain tumors

...role the marker may play when the tumor spreads or comes back after treatment. The study, ÒAttractin is elevated in the cerebrospinal fluid of patients with malignant astrocytoma and mediates glioma cell migration," is published in the November issue of Clinical Cancer Research. The biomarker, a protei...

Malaria treatment efficacy compromised in certain HIV-positive patients

...ing from HIV infection can lead to trouble when it comes to treating malaria, according to a new study appearing in the Oct. 1 issue of The Journal of Infectious Diseases, now available online. "Our study demonstrates that HIV-1 infected patients with suppressed immunity represent, next to children and pr...

Study highlights new and cheaper way to treat heroin addiction

...costs involved. In contrast to methadone –which comes in liquid not tablet form ?dihydrocodeine is much easier to store and comes under less stringent regulations because it is not as toxic and less likely to cause a fatal overdos...

Molecular 'signature' protects cells from viruses

...l of proteins. The instruction what is to be built comes from the cell nucleus: this is where the DNA is stored, the heredity molecule in which, so to speak, the construction blueprints for all cellular proteins are stored. If a particular protein is to be produced, the appropriate command is 'copied' in t...

For Pacific white shrimp, gender matters when competing for food

... Currently, over 50% of the world’s shrimp supply comes from farming. As the industry tries to meet the growing demand for shrimp and shrimp-based products, identifying shrimp that grow more efficiently will be an important tool to maximizing production. ...

Protein folding: Building a strong foundation

...efuses to choose between form and function when it comes to protein folding; each protein's function is directly related to its shape, and when proteins misfold ?something that's known to occur in a number of diseases like Alzheimer's and Huntington's ?they don't function as they should. In the new study...

Scientists get best look ever at water-life connection

... at least 100 picoseconds to complete. So when it comes to supporting life -- on the molecular scale, anyway -- water has to move 100 times slower to get the job done. "The fast-moving water has to slow down to connect with a slow-moving protein -- it's that simple," Zhong said. "It sounds trivial, I kn...

UVa researchers seek to unlock broccoli's cancer fighting secret

... compounds into a cancer prevention treatment that comes in a pill or liquid form could enhance the concept of stopping cancers before they start. For Cross, there is also a personal pull to developing anti-cancer compounds. "The real irony is that I can't stand broccoli," she says. ...

Quality not quantity important for immune response to HIV

When it comes to an immune response against HIV, research funded by the Wellcome Trust in the UK and the National Institutes of Health in the US has found that bigger is not necessarily better, contrary to conventional medical wisdom. The research may have a profo...

Otherworldly bacteria discovered two miles down

... of the hydrogen (H2) needed for their respiration comes from the decomposition of water (H2O) by radioactive decay of uranium, thorium, and potassium." Humans and most other land-dwelling organisms ultimately get their energy from the Sun, with photosynthetic plants forming the base of the food web....

Getting to the heart of the heart

...g and coming together to form the heart, the heart comes from stem cells that give rise to multiple cell types in the same local environment ?a simpler way of building the organ. And because these cells can make multiple cell types, they could be more useful in repairing the heart than any single kind of c...

Bird flu vaccine additive may stretch supply

...the study does suggest that if the feared pandemic comes to be, adjuvants might be used to extend the vaccine supply. Furthermore, the authors note, H9N2 is itself a pandemic threat. The researchers vaccinated 96 young adults who were divided into eight groups receiving different dosage levels, half of...

Scientists find a key to immune system's ability to remember

... fast and furious response when that same pathogen comes calling again years later. Unlike naïve T cells, which are confined to the lymphatic system, memory T cells are found everywhere in the body, enabling them to sense and react more quickly when an infectious agent is reencountered. "Now we know one...

Gene therapy study takes aim at prostate cancer

... study, which will include as many as 36 subjects, comes from the National Cancer Institute and the Baylor Special Program for Research Excellence in Prostate Cancer that is NCI-funded. Others involved in the study include Thompson, Dr. Brian J. Miles, BCM professor of urology; Dr. Adrian Gee, BCM prof...

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