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Tag: "hiding" at biology news

New vaccine prevents CMV infection and disease in mice

...the host by evading the immune responses either by hiding or by misdirecting the host’s immune responses. W...it disarms the host immune system in two ways – by hiding or masking the proteins that would normally provoke an immune response, or by fooling the immune sys...

'Insulator' helps silence genes in dormant herpes virus

... infection, the virus usually remains in the body, hiding out in nearby nerve cells where the victim's immune defenses cannot reach it, causing no symptoms at all. In order to escape detection by the body's immune system, the latent virus works to silence genes that would cause it to replicate. In this dor...

Cold sore virus might play role in Alzheimer's disease

...ight, the virus becomes active, traveling from its hiding places in the nervous system to cells around the mouth, damaging cells and causing cold sores. It was this cycle of activity and latency that Miller and Federoff focused on while looking at the brain cells of mice with different forms of the ApoE ...

Fishy cooperation

...und the reef. Prey can escape from the grouper by hiding in a crevice and from the moray eel by leaving the reef, but prey has nowhere to go if hunted by a combination of these two predators. The article offers a description and accompanying videos, such as the one showing a grouper and eel swimming side b...

Malaria vaccine prompts victims' immune system to eliminate parasite from mosquitoes

...Plasmodium cells escape the human immune system by hiding in liver and blood cells, making them difficult to target with a vaccine. During the human phase of the infection, these cells, for the most part, exist in an asexual form. Some of the Plasmodium cells, however, transform into gametocytes—the se...

Tuberculosis: The bacillus takes refuge in adipose cells

...e able to reach the dormant bacillus that has been hiding in adipose cells without our knowing it. ...

Interfering RNA silences genes in 'slippery' immune cells

...nfected cells to self-destruct, thus eliminating a hiding place for the virus," said Dr. Finkel. "More broadly," she added, "the technique could theoretically be directed against other immune-related diseases, by silencing harmful genes active in T cells." Dr. Finkel's co-authors, all from The Children'...

Plants tell caterpillars when it's safe to forage

...rent light conditions produced no changes in their hiding behavior. But introducing plants changed larvae ...After eight hours, about 20% more larvae went into hiding when the lights were on and plants were added. And when plants were introduced under dark conditions...

First surveys of Tanzanian mountains reveal 160+ animal species, including new & endemic

...overed a new species of frog (Arthroleptis nikeae) hiding among the leaf litter under the forest canopy. The smooth-skinned, brown patterned frog measures about 2.25 inches from snout to bottom. "Surveying just one section of the Eastern Arc, we discovered a little frog no one knew existed," said Nike Dogg...

UC Davis study finds HIV hiding from drugs in gut, preventing immune recovery

... AIDS, is able to survive efforts to destroy it by hiding out in the mucosal tissues of the intestine. They also found that HIV continues to replicate in the gut mucosa, suppressing immune function in patients being treated with antiretroviral therapy--even when blood samples from the same individuals indic...

Common bacteria pirate natural mechanism to get inside cells

...ections, Dr. Daaka says. "In the case of bacteria, hiding inside the cells is dependent on dynamin. What we ...e immune system," says Dr. Daaka. "We think their hiding is mediated through dynamin. This is not only applicable to this particular pathogen but for many mo...

Federal grant funds research on novel HIV therapy

...tor in immune cells inhibits HIV from entering its hiding place within immune cells. That compound, from a class of agents called neurokinin-1 receptor antagonists, may represent a new type of anti-HIV therapy, due to its ability to block HIV replication. The new program project grant will allow researcher...

Marburg haemorrhagic fever in Angola update

...trol operations, especially when communities begin hiding cases and bodies because of suspicions about the safety of hospitals. In the current outbreak, such suspicions are understandable. Very few patients with laboratory-confirmed Marburg haemorrhagic fever have survived; most hospitalized patients have ...

A gene's first 'kiss' sets off that affair known as puberty

... reproductive hormones can exist at birth, go into hiding at about four to six months of age, then reemerge in full force some 10 to 12 years later? "Puberty is critical to human development. And while there is a fairly good understanding of how the endocrine system regulates the hormones involved, just ho...

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