News tagged with cd4 cells
Sequencing of cod genome reveals unique immune system characteristic
(PhysOrg.com) -- Researchers working out of Norway's University of Oslo have discovered through sequencing the genome of the Atlantic cod that the fish doesn't have a gene critical to the immune system in ...
Aug 11, 2011 |
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Scientists uncover structure of key protein in common HIV subgroup
Scientists from the California Institute of Technology have provided the first-ever glimpse of the structure of a key protein -- gp120 -- found on the surface of a specific subgroup of the human immunodeficiency ...
Medicine & Health / HIV & AIDS
Apr 02, 2010 |
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Two-sided immune cell could be harnessed to shrink tumors, study shows
(PhysOrg.com) -- A recently identified immune cell that directs other cells to fight infection plays a critical role in regulating the immune system in both health and disease. Researchers from the University ...
Medicine & Health / Medical research
Oct 28, 2010 |
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Microfluidic device allows collection, analysis of hard-to-handle immune cells
A team led by Massachusetts General Hospital (MGH) scientists has developed a new microfluidic tool for quickly and accurately isolating neutrophils - the most abundant type of white blood cell - from small blood samples, ...
Aug 30, 2010 |
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Sperm may play leading role in spreading HIV
Sperm, and not just the fluid it bathes in, can transmit HIV to macrophages, T cells, and dendritic cells (DCs), report a team led by Ana Ceballos at the University of Buenos Aires in Argentina. By infecting ...
Medicine & Health / HIV & AIDS
Oct 26, 2009 |
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Scientists gain insight into HIV vaccine failure
A team of researchers from The Wistar Institute and the University of Pennsylvania reports new evidence refuting a popular hypothesis about the highly publicized failure in 2007 of the Merck STEP HIV vaccine study that cast ...
Medicine & Health / HIV & AIDS
Jul 20, 2009 |
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Study offers insights into failed HIV-1 vaccine trial
Following the disbandment of the STEP trial to test the efficacy of the Merck HIV-1 vaccine candidate in 2007, the leading explanation for why the vaccine was ineffective - and may have even increased susceptibility to acquiring ...
Medicine & Health / HIV & AIDS
Jul 20, 2009 |
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AIDS patients face higher risk of HPV-related cancers as immunosuppression grows
Risk of human papillomavirus (HPV)-associated cancers is greater for people living with AIDS and increases with increasing immunosuppression, according to a new study published online July 31 in the Journal of the National Ca ...
Jul 31, 2009 |
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HIV vaccine failure probably caused by virus used, says new research
The recent failure of an HIV vaccine was probably caused by the immune system reacting to the virus 'shell' used to transmit the therapy around the body, according to research published today in the Proceedings of the Na ...
Medicine & Health / HIV & AIDS
Nov 16, 2009 |
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Has HIV become more virulent?
Damage to patients' immune systems is happening sooner now than it did at the beginning of the HIV epidemic, suggesting the virus has become more virulent, according to a new study in the May 1, 2009 issue of Clinical In ...
Medicine & Health / HIV & AIDS
Apr 07, 2009 |
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Scientists identify how key protein keeps chronic infection in check
Why is the immune system able to fight off some viruses but not others, leading to chronic, life-threatening infections like HIV and hepatitis C?
May 08, 2009 |
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Chronic infection now clearly tied to immune-system protein (w/Video)
A new study finds the cross-talk between 'killer T-cells' and 'helper T-cells' can only happen in the presence of interleukin-21, a powerful immune-system protein. UAB researchers say if interleukin-21 is missing, the immune ...
Medicine & Health / Medical research
May 14, 2009 |
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Elite controllers block integration of HIV DNA into host genome
Alone among those infected with HIV-1, so-called elite controllers spontaneously maintain undetectable levels of viral replication even absent the benefit of anti-retroviral therapy. Now Mathias Lichterfeld of the Massachusetts ...
Sep 19, 2011 |
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Study examines best time for healthy HIV-infected people to begin antiretrovirals
A major new clinical trial seeks to determine whether HIV-infected asymptomatic individuals have less risk of developing AIDS or other serious illness if they begin taking antiretrovirals sooner rather than later, based on ...
Medicine & Health / HIV & AIDS
Mar 07, 2011 |
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Researchers find drug-resistant HIV patients with unimpaired immune cells
Mayo Clinic researchers have shown why, in a minority of HIV patients, immune function improves despite a lack of response to standard anti-retroviral treatment. In these cases, researchers say, the virus has lost its ability ...
Medicine & Health / HIV & AIDS
Nov 30, 2010 |
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