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Tag: "against" at biology news

Carnegie Mellon scientists find key HIV protein makes cell membranes bend more easily

...bilayers provide a protective barrier for the cell against intruders, yet also contain molecules to recognize and communicate with other cells or get nutrients. Cells also communicate with one another via small, membrane-bound vesicles that contain proteins or other molecular cargo. When delivering their goo...

One species, many genomes

... other hand, such as those responsible for defense against pathogens or infections, are much more variable than the average gene. "The genetic variability appears to reflect adaptation of local circumstances," says Weigel. It is likely that such variable genes allow plants to withstand dry or wet, hot or col...

Identified main genetic variants involved in response to HIV

... for the determination of immune response capacity against a number of infectious diseases, including AIDS. These variations are located in the short arm of chromosome 6 in genes controlling HLA-B and HLA-C molecular systems, responsible for the activation of the immune system so that it is able to locate an...

Innovative smallpox vaccine research study to be conducted at Case Medical Center

...dults ages 18 to 34 who have never been vaccinated against the disease. The study is the first of its type in...ealth and must not have previously been vaccinated against smallpox. Smallpox is a contagious and sometimes fatal infectious disease characterized by raised...

Brain inflammation may be friend, not foe, for Alzheimer's patients

...w efforts to develop a vaccine or other strategies against Alzheimer’s by engaging the body’s immune system. ...elopment of a vaccine or other strategy to protect against or fight off Alzheimer’s. Work on an Alzheimer’s vaccine has at times been promising, reducing the n...

Pregnant mom's exposure to flu vaccine kick-starts fetal immune system

...tus can be exposed to and mount an immune response against allergens to which the mother has been exposed, an...ll immune responses following maternal vaccination against influenza with Fluzone during pregnancy. The vaccination of pregnant women against influenza is cons...

How sneaky HIV escapes cells

...ology as well as identify new avenues in the fight against human disease.” ...

The insect vector always bites twice

... In Senegal the rate of antisalivary antibodies against Anopheles in young children (under 5 years), the population most exposed to the risk of malaria, appeared to be proportional to the actual degree of exposure, which had been assessed beforehand by standard entomological capture techniques. All the ch...

Largest synthetic gene ever built offers insights into anti-malarial drug resistance

...escapes destruction by most of the agents now used against it, he said., When a malaria parasite is transmitted through a mosquito bite, the mosquito injects the parasite into skin or blood, which then travels to the liver within minutes, grows and divides there, and then ruptures liver cells, spewing m...

Loss of stem cells correlates with premature aging in animal study

... mice start their young adulthood with two strikes against them in terms of long-term tissue maintenance, and so, they subsequently age before their time.” With this new knowledge of how DNA repair, stem cells, and the aging process interconnect, Brown, first author Yaroslava Ruzankina, and Amma Asare are...

In mice, drug protects against diabetes and atherosclerosis

...e, and we believe it may turn out to be protective against asthma and other metabolic disorders as well." ...a genetic variation of aP2 helps to protect humans against type 2 diabetes, heart disease, and hypertriglyceridemia. See here for more information. Now that...

Brightening prospects of using fluorescent nanotubes in medical applications

...ors. This makes it easier to pick out their signal against background noise. Furthermore, they produce light in a part of the spectrum – the near infrared where skin and other tissue is transparent – that allows the nanotube light to stand out. Nanotubes are made entirely from graphitic carbon, which is ...

Breakthrough developments in rheumatoid arthritis reported

...e cells that are normally called on to wage battle against infection. In autoimmune diseases like rheumatoid arthritis, PTPN22 appears to put people at higher risk of a wayward T-cell response. The group has since gone on to use modern genetic methods to search for single nucleotide polymorphisms, or SN...

Researchers examine carbon capture and storage to combat global warming

...raining, we don't let children drive, we have laws against drunk driving-we implement a whole system to ensure that the activity is safe.'' Policy and progress Engineers have more than three decades of experience putting carbon dioxide into oil reservoirs, where it increases oil production by making ...

Newly discovered antibody may be body's natural defense against Alzheimer's

In an important advance in the battle against Alzheimer's disease, physician-scientists at NewYo... antibodies in human blood that may help to defend against this form of dementia as well as other neurodegenerative diseases. The newly found antibodies sele...

Progress toward an antitumor vaccine

...attle cancer" In principle, by the same means used against infectious diseases: immunization. The production ...mmunogenic, which can suppress the immune response against the true target, the glycoprotein.” This team has now found a good anchoring technique: Their anc...

Genetic factors are linked to fever following smallpox vaccination

...rse events from other live vaccines. Immunization against infectious agents has been one of the greatest successes of modern medicine, and the eradication of smallpox from the world is considered by some to be the crowning event of the 20th century. However, immunization with live virus particles, as in the...

Could fungal collection hold the key to new life-saving drugs?

... work at SIDR found activities from plant extracts against diabetes, obesity and psoriasis. Professor Alan Harvey, Director of SIDR said: “We are delighted to be working with CABI and to have access to their fantastic source of fungal samples. We hope that this novel source of chemical diversity will c...

Marine phytoplankton changes form to protect itself from different predators

Suppressing colony formation is a useful strategy against copepods because they prefer to eat colonies of ph... phytoplankton – can change form to protect itself against attack by predators that have very different feeding habits. To boost its survival chances, Phaeocy...

Research finds that circadian rhythms dominate all life functions

...unction in a synchronized manner, shifting in time against each other and working in what resembles a domino effect. However, very few genes are found to be oscillating in the same phases in different tissues or organs. In fact, only about 5 percent of all genes fall into the same phase or timing of peaks...

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