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Tag: "viral" at biology news

SLU researchers uncover direct evidence on how HIV invades healthy cells

...f the cell. The third protein, protease, processes viral proteins and is essential to make infectious virus...howed that the integrase holds the two ends of the viral DNA together prior to integration. Once inside the cell, the two viral DNA ends are fused by the int...

Shorter colds, milder flu may follow from newly revealed immune mechanism

Enlisted to help fight viral infections, immune cells called macrophages consum...ific protein produced in the course of respiratory viral infections can serve to protect macrophages from an untimely death. Their report will appear in an u...

Greasing interferon's gears may pave way to greater therapeutic benefits, fewer side effects

...r months in patients at risk of developing serious viral infections, including children with asthma, heart ... Stat1 action and tracking their susceptibility to viral infection. In addition, the group is studying transgenic mice engineered to carry the same Stat1 m...

Tuberculosis still a risk for patients receiving HIV drugs

...nocompromised patients. HAART not only reduces the viral load of HIV, but it also often helps to keep other infections such as TB under control. In fact, previous studies indicate that HAART can reduce the risk of TB in HIV patients by 70 to 90 percent. Although HIV-infected people living in industrialized...

Olfactory system detects pheromones that control reproduction

...s expressing LHRH provided that signal, making the viral tracer highly specific. "So, whenever we saw a signal from the conditional virus, we knew we were seeing connections to neurons expressing LHRH and nothing else," said Dulac. As a control, the researchers also used a "non-conditional" strain of pseu...

Johns Hopkins flu expert calls for mandatory vaccination of health care workers

...nd hospital staff from widespread outbreaks of the viral illness. Studies by other United States researchers show that voluntary vaccination programs don't do the job and that each year, nearly 40,000 Americans die from influenza, many of them elderly or ill, with weakened immune systems that cannot readi...

Hepatitis B accounts for 40 percent of 'missing' Asian women

...ent of the population is infected. Using data on viral prevalence by country as well as estimates of the effect of hepatitis on birth sex, Oster concludes that hepatitis B can account for about 45 percent of the "missing women" ?or, more specifically, for as many as 50 percent of the "missing women" in E...

HIV-infected adults in Botswana respond positively to ARV therapy public treatment program

...outcomes, including improved CD4 counts, decreased viral load and weight gain comparable with other successful care and treatment programs in the developed world. "This data confirms what we are starting to see throughout the developing world. Patients will do fine regardless of social and economic status...

New Therapeutic Target Identified In Inherited Brain Tumor Disorder

...outcomes, including improved CD4 counts, decreased viral load and weight gain comparable with other successful care and treatment programs in the developed world. "This data confirms what we are starting to see throughout the developing world. Patients will do fine regardless of social and economic status...

Largest computational biology simulation mimics life’s most essential nanomachine

...outcomes, including improved CD4 counts, decreased viral load and weight gain comparable with other successful care and treatment programs in the developed world. "This data confirms what we are starting to see throughout the developing world. Patients will do fine regardless of social and economic status...

Wild birds help to create human flu vaccine

... storm, we must track wild migratory birds and the viral storms they carry over oceans and continents and share that data with the world," said Senator Joe Lieberman (D-CT), who recently introduced the Global Network for Avian Influenza Surveillance Act and has been working with congressional leaders to ad...

Expert dispels bird flu paranoia

...ry panic about the virus. He said bird flu was a viral disease of all birds, usually spread by water birds but normally only causing disease in poultry. Contaminated water is the most common source of infection from bird droppings but it can be spread physically on boots or other clothing. The virus ...

Performing monkeys in Asia carry viruses that could jump species to humans

...e conducted extensive research on primate-to-human viral transmission in Africa, where they believe HIV ori... dense urban centers, so there's the potential for viral transmission across the species barrier." The study's authors are urging more research on the diffe...

The reason why antiviral therapy can't annihilate HIV infection, and what to do about it

...isease in affected patients. But the existence of viral reservoirs precludes the complete elimination of H...dual virus as well as the underlying mechanisms of viral persistence. They demonstrate that HIV persists in both resting and activated CD4+ T cells of patien...

Texas scientists discover how a hepatitis C protein promotes liver cancer

...d promoting the proliferation of liver cells, this viral protein is setting up the liver for cancer." According to the federal Centers for Disease Control and Prevention, about 85 percent of liver cancer cases in the United States occur in people infected by the hepatitis C virus. Approximately 200 millio...

Preclinical study of a new brain tumor therapy

... genetic material (a nucleic acid) associated with viral infections and linked it to a compound that could bind to EGFR. As a result of the defence mechanisms that have evolved to protect mammalian cells from viruses, cells are programmed to die once they take up this particular nucleic acid. The treatment...

UCSD study finds anthrax toxins also harmful to fruit flies

...termine the function of a variety of bacterial and viral pathogenic factors." Anthrax bacterium secretes ...termine the function of a variety of bacterial and viral pathogens of unknown function. One could then test hypotheses obtained from these studies with flies...

Infant transplant patients resist infections that kill adult AIDS patients

...ction, they measured the T cell response to select viral immunization. This comparison enabled them to see that infant heart transplant patients had more help from the immune system post transplant -- even though some had a 10,000-fold reduction in T cells -- compared to the healthy control group. The natu...

Contagious obesity? Identifying the human adenoviruses that may make us fat

...s' visceral fat, total body fat, serum lipids, and viral antibodies. Chickens inoculated with Ad-37 had much more visceral fat and body fat compared with the chickens infected with Ad-2, Ad-31 or the control group, even though they didn't eat any more. The Ad-37 group was also generally heavier compared t...

Combination therapy improves AIDS-related lymphoma outcome

...dicators, such as increased CD-4 cells and reduced viral loads, but also significantly improves survival and delays the onset of AIDS and AIDS-related cancers, including lymphomas. With the lack of study data to show the efficacy of maintaining HIV-positive patients on HAART while they are treated with c...

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