science top stories popular news  

Daily non-political popular news in brief.

HIV-1 kills immune cells in the gut that may never bounce back

12-04-2006 · EurekAlert!

Two new studies from Rockefeller University and the Aaron Diamond AIDS Research Center (ADARC) show that the immune cells in other body tissues may never rebound after HIV infection, suggesting the need for additional ways to monitor immune system health, and the need for hypervigilance as HIV-positive patients live into their forties, fifties, sixties and beyond.

Read more »

Keywords: hiv-1, kills, immune, cells, gut, never, bounce, hiv, kill, cell

« Previous | Next »

Similar news on "HIV-1 kills immune cells in the gut that may never bounce back":

  1. New designer toxins kill Bt-resistant insect pests
    11-01-2007 · EurekAlert!
    A new way to combat resistant pests stems from discovering how the widely-used natural insecticide Bt kills insects. Figuring out how Bt toxins punch holes in the cells of an insect's gut was the key to designing the new toxins, according to new research. Some pest insects have developed resistance to Bt toxins, naturally occurring insecticides used worldwide to combat both crop pests and disease-carrying mosquitoes.
    Similar news · Read more »
  2. NIAID scientists identify new cellular receptor for HIV
    02-10-2008 · EurekAlert!
    A cellular protein that helps guide immune cells to the gut has been newly identified as a target of HIV when the virus begins its assault on the body's immune system, according to researchers from the National Institute of Allergy and Infectious Diseases, part of the National Institutes of Health.
    Similar news · Read more »
  3. Carnegie Mellon scientists find key HIV protein makes cell membranes bend more easily
    07-25-2007 · EurekAlert!
    Carnegie Mellon University scientists have made an important discovery that helps to explain why HIV enters immune cells with ease. They found that after HIV docks onto a host cell, it dramatically lowers the energy required for a cell membrane to bend, making it easier for the virus to infect immune cells. The finding will provide vital data to conduct future computer simulations of HIV dynamics to help further drug discovery and prevent deadly infections.
    Similar news · Read more »
  4. T vs. B: Re-engineered human T cells effectively target and kill cancerous B cells
    09-18-2007 · EurekAlert!
    Human white blood cells, engineered to recognize other malignant immune cells, could provide a novel therapy for patients with highly lethal B cell cancers such as acute lymphoblastic leukemia, according to researchers at Memorial Sloan-Kettering Cancer Center. By administering repeated doses of T cells designed to express an artificial receptor which recognizes human B cells, the researchers were able to eradicate cancer in 44 percent of mice bearing human ALL tumors.
    Similar news · Read more »
  5. New HIV vaccine target could solve mutation problem
    11-08-2007 · EurekAlert!
    While HERV are present in every cell, HIV may disrupt the normal constraints on HERV activity as it alters the cell to produce more HIV. A vaccine could be created containing HERV antigens that would stimulate T-cells targeting cells expressing HERV. Although the vaccine would not produce T-cells capable of recognizing HIV itself, it would evoke immune responses that could still protect people from becoming infected or limit the extent of damage caused by HIV.
    Similar news · Read more »
  6. HIV is a 'double hit' to the brain
    08-15-2007 · EurekAlert!
    New evidence reported in the August issue of Cell Stem Cell, a publication of Cell Press, offers a novel perspective on how the HIV/AIDS virus leads to learning and memory deficits, a condition known as HIV-associated dementia. A protein found on the surface of the virus not only kills some mature brain cells, as earlier studies had shown, but it also prevents the birth of new brain cells by crippling "adult neural progenitors," the new study finds.
    Similar news · Read more »
  7. Brown researchers make major signal transduction discovery
    10-04-2007 · EurekAlert!
    How cells sense and respond to chemical messages -- a process known as signal transduction -- is a fundamental force in biology, controlling key processes such as cell growth and immune response. Now researchers from the Warren Alpert Medical School of Brown University and Rhode Island Hospital report a significant discovery in the field of signal transduction that could provide a new target for drugs that fight cancer, HIV and diseases. Results are published in Cell.
    Similar news · Read more »
  8. Researchers identify a means of controlling a parasite that kills and eats human cells
    01-17-2008 · EurekAlert!
    Researchers from the University of Virginia and the University of Vermont have discovered a means of inhibiting one of the world’s most voracious parasites. The study, published Friday, Jan. 18 in PLoS Pathogens, targets a protein which aids the parasite in ingestion of immune cell corpses.
    Similar news · Read more »
  9. Novel vaccine concept developed by scientists at the Wistar Institute
    01-31-2008 · EurekAlert!
    A new vaccine design strategy developed by scientists at the Wistar Institute could help to develop vaccines against diseases like AIDS and cervical cancer. The secret is using a herpes simplex protein called glycoprotein D to block a receptor molecule on antigen-presenting cells. Wistar scientists showed that vaccine vectors made by fusing glycoprotein D with genes from HIV and HPV antigens increase the immune system's response to those antigens in cell cultures and mice.
    Similar news · Read more »
  10. International HIV/AIDS trial finds risks increase on episodic antiretroviral therapy
    11-29-2006 · EurekAlert!
    Results from one of the largest HIV/AIDS treatment trials ever conducted show that a specific strategy of interrupting antiretroviral therapy more than doubles the risk of AIDS or death from any cause. In the study, the investigators used two predetermined levels of CD4+ T cells, the primary immune cell targeted by HIV, to guide them in respectively suspending or restarting the study participants on antiretroviral therapy.
    Similar news · Read more »