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Latest White blood cell Stories

Sturdier Immune System May Explain Why Women Live Longer
2013-05-16 09:14:05

redOrbit Staff & Wire Reports - Your Universe Online Women's immune systems age more slowly than men's, which may contribute to their longer average lifespans, according to new research published Wednesday in the journal Immunity & Ageing. The study by Japanese researchers found that levels of key white blood cells responsible for fighting off infections decline faster in ageing men than they do in women. The average life expectancy in the US is 76.0 years for men and 80.9...

2013-04-22 14:15:38

UC San Francisco Study Examines Role of Immune Cell in Triggering Muscle Regrowth UC San Francisco scientists have discovered that muscle repair requires the action of two types of cells better known for causing inflammation and forming fat. The finding in mice, published in the April 11 issue of Cell, showed that a well-known immune cell called the eosinophil  [ee-oh-SIN-oh-fil] carries out the beneficial role in two ways — by clearing out cellular debris from damaged tissue...

Portable Counter For White Blood Cells Being Developed
2013-03-26 10:25:03

California Institute of Technology White blood cells, or leukocytes, are the immune system's warriors. So when an infection or disease attacks the body, the system typically responds by sending more white blood cells into the fray. This means that checking the number of these cells is a relatively easy way to detect and monitor such conditions. Currently, most white blood cell counts are performed with large-scale equipment in central clinical laboratories. If a physician collects blood...

2013-01-03 13:36:00

New research published in the Journal of Leukocyte Biology suggests that Porphyromonas gingivalis causes excess IL-10 production, which inhibits the immune cells interferon gamma leading to infection A new research report published in the Journal of Leukocyte Biology shows how the bacteria known for causing gum disease--Porphyromonas gingivalis--manipulates the body's immune system to disable normal processes that would otherwise destroy it. Specifically, the report shows that this...

2012-12-07 13:52:34

Researchers have discovered an immune system 'kill switch' that destroys blood stem cells when the body is under severe stress, such as that induced by chemotherapy and systemic infections. The discovery could have implications for protecting the blood system during chemotherapy or in diseases associated with overwhelming infection, such as sepsis. The kill switch is triggered when internal immune cell signals that protect the body from infection go haywire. Dr Seth Masters, Dr Motti...

Silent Watchmen Attack To Defend The Nervous System
2012-10-16 17:20:26

In many pathologies of the nervous system, there is a common event - cells called microglia are activated from surveillant watchmen into fighters. Microglia are the immune cells of the nervous system, ingesting and destroying pathogens and damaged nerve cells. Until now little was known about the molecular mechanisms of microglia activation despite this being a critical process in the body. Now new research from the Montreal Neurological Institute and Hospital — The Neuro - at McGill...

2012-08-31 10:20:38

Scientists' discovery of an important step in the body's process for healing wounds may lead to a new way of treating inflammation. A study published today in Current Biology details how an international team of researchers led by Monash University's Australian Regenerative Medicine Institute (ARMI) discovered the mechanism, which shuts down the signal triggering the body's initial inflammatory response to injury. When the body suffers a wound or abrasion, white blood cells, or...

2012-08-06 22:04:28

Amyotrophic lateral sclerosis (ALS) is a progressive disease wherein the cells of the central nervous system (CNS) involved in movement and coordination are destroyed. Although the mechanism of ALS is not completely understood, inflammation is believed to play a role in the disease process. A recent study by Howard Weiner and colleagues at Harvard Medical School and Tufts School of Medicine investigated the role of inflammation in a mouse model of ALS. Weiner and colleagues found that the...

2012-07-30 11:05:04

Researchers in Newcastle and Singapore have identified a new type of white blood cell which activates a killing immune response to an external source — providing a new potential target for vaccines for conditions such as cancer or Hepatitis B. Publishing in the journal Immunity, the team of researchers from Newcastle University in collaboration with A*STAR's Singapore Immunology Network (SIgN) describe a new human tissue dendritic cell with cross-presenting function. Dendritic...

Immune Cell DNA Used In Diagnostic Technique
2012-07-09 17:16:37

By looking at signature chemical differences in the DNA of various immune cells called leukocytes, scientists have developed a way to determine their relative abundance in blood samples. The relative abundance turns out to correlate with specific cancers and other diseases, making the technique, described in two recent papers, potentially valuable not only for research but also for diagnostics and treatment monitoring. When a person is sick, there is a tell-tale sign in their blood: a...