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A macrophage is a type of white blood cell that surrounds and kills microorganisms, removes dead cells, and stimulates the action of other immune system cells.
Researchers identify trigger for immune cells' inflammatory response

Researchers identify trigger for immune cells' inflammatory response

Scientists at the University of Bristol have identified the trigger for immune cells' inflammatory response - a discovery that may pave the way for new treatments for many human diseases. [More]
Nanoparticle-based gene therapy may hold promise for patients with asthma

Nanoparticle-based gene therapy may hold promise for patients with asthma

A new study has demonstrated a way to deliver a nanoparticle-based gene therapy, in order to repair lungs damaged by chronic allergic asthma and to reduce inflammation that causes asthma attacks. [More]
Could worm infection counter IBD? An interview with Dr Loke and Dr Cadwell

Could worm infection counter IBD? An interview with Dr Loke and Dr Cadwell

The hygiene hypothesis refers to the idea that decreased exposure to certain infectious agents (because of better hygiene) is the reason why we have seen an increase in inflammatory diseases in the developed world. [More]
Elevated endothelial progenitor cells may characterise PAH patients

Elevated endothelial progenitor cells may characterise PAH patients

Plasma levels of endothelial progenitor cells are elevated in patients with pulmonary arterial hypertension, say researchers. [More]
Macrophages play key role in quick tissue repair

Macrophages play key role in quick tissue repair

While scientists have known for many years that there are cells living in the cavities surrounding various organs such as the heart, lung and liver, their function has remained unknown. A recent Cumming School of Medicine study examined these cells, and discovered they play an integral role in fast tissue repair. The study was published in the journal Cell this month. [More]
Study shows pulmonary alveolar proteinosis can be cured by single transfer of monocytes

Study shows pulmonary alveolar proteinosis can be cured by single transfer of monocytes

Researchers from VIB-UGent reveal that adult circulating monocytes that get access to the macrophage niche in the liver or the lung can acquire identical tissue-specific macrophage functions and self-maintenance capacities as macrophages of embryonic origin. [More]
Study shows beneficial effect of hNSC transplantation for TBI

Study shows beneficial effect of hNSC transplantation for TBI

Traumatic brain injury (TBI) is a major cause of mortality and morbidity, often causing lifelong disability for those who survive. Treatment is limited to supportive care, but stem cell therapy has received recent attention as a way to promote recovery for injuries to the central nervous system (CNS). In this study, researchers transplanted human neural stem cells (hNSCs) into the brains of mice modeled with TBI to investigate whether the hosts' immune systems and the stem cells acting in concert would enhance repair. [More]
Removing immunomodulatory protein improves symptoms of muscular dystrophy in mice

Removing immunomodulatory protein improves symptoms of muscular dystrophy in mice

Removing an immunomodulatory protein called osteopontin improves the symptoms of mice with muscular dystrophy by changing the type of macrophages acting on damaged muscle tissue, according to a paper published in The Journal of Cell Biology. [More]
Cyclodextrin offers potential new therapy for cardiovascular disease

Cyclodextrin offers potential new therapy for cardiovascular disease

An American mother's hunch might result in new treatments for patients who can't tolerate conventional cholesterol-lowering drugs. [More]
Cyclodextrin dissolves cholesterol crystals, reduces atherosclerotic plaques

Cyclodextrin dissolves cholesterol crystals, reduces atherosclerotic plaques

Cardiovascular disease from atherosclerosis is one of the most common causes of death worldwide. Inflammation plays a crucial role in atherosclerosis and cholesterol crystals are considered to be early triggers in the development of the disease. [More]
Immunoproteasome inhibits repair function of alveolar macrophages

Immunoproteasome inhibits repair function of alveolar macrophages

Scientists of Helmholtz Zentrum München, a partner in the German Center for Lung Research, have observed that the immunoproteasome inhibits the repair function of alveolar macrophages. [More]
Researchers disprove previously assumed behavior of macrophage immune cells

Researchers disprove previously assumed behavior of macrophage immune cells

What happens when macrophage immune cells are activated in the course of an inflammation to combat pathogens such as bacteria or viruses? Researchers of the Luxembourg Centre for Systems Biomedicine of the University of Luxembourg pursued this very question. The researchers discovered that the immune cells behave differently from what was previously assumed. Their metabolism upholds the production of antimicrobial substances and fatty acids during activation. In this way, they deliver important resources for the immune responses they trigger. [More]
Low bone mass higher in HIV-infected males than in females

Low bone mass higher in HIV-infected males than in females

Accumulating evidence suggests that rates of low bone mass are greater in HIV-infected males than in females. Researchers led by Grace Aldrovandi, MD, chief of the Division of Infectious Diseases at Children's Hospital Los Angeles, studied 11 biomarkers associated with inflammation, bone loss and/or bone formation in about 450 individuals - assessed by sex and HIV status - to try to determine causes of this differential bone loss. [More]
Protein p62 acts as molecular brake to keep inflammation in check, avoid collateral damage

Protein p62 acts as molecular brake to keep inflammation in check, avoid collateral damage

Inflammation is a Catch-22: the body needs it to eliminate invasive organisms and foreign irritants, but excessive inflammation can harm healthy cells, contributing to aging and sometimes leading to organ failure and death. Researchers at University of California, San Diego School of Medicine have discovered that a protein known as p62 acts as a molecular brake to keep inflammation in check and avoid collateral damage. [More]
Specialised white blood cell in birds can destroy fatal fungal infection

Specialised white blood cell in birds can destroy fatal fungal infection

Scientists have discovered that a specialised white blood cell found in birds can destroy a potentially fatal fungal infection which affects more than one million people every year. [More]
New UNC School of Medicine study shows how some bacteria can spread throughout the body

New UNC School of Medicine study shows how some bacteria can spread throughout the body

Bacteria have evolved thousands of clever tactics for invading our bodies while evading our natural defenses. Now, UNC School of Medicine scientists studying one of the world's most virulent pathogens and a separate very common bacterium have discovered a new way that some bacteria can spread rapidly throughout the body - by hitchhiking on our own immune cells. [More]
UIC researchers discover molecular switch that allows salmonella bacteria to fight immune system

UIC researchers discover molecular switch that allows salmonella bacteria to fight immune system

Researchers at the University of Illinois at Chicago have discovered a molecular regulator that allows salmonella bacteria to switch from actively causing disease to lurking in a chronic but asymptomatic state called a biofilm. [More]
Neurons protect intestinal tissue from over-inflammation

Neurons protect intestinal tissue from over-inflammation

The immune system exercises constant vigilance to protect the body from external threats--including what we eat and drink. A careful balancing act plays out as digested food travels through the intestine. Immune cells must remain alert to protect against harmful pathogens like Salmonella, but their activity also needs to be tempered since an overreaction can lead to too much inflammation and permanent tissue damage. [More]
Drexel biomedical engineer identifies immune cell as potential strategy for growing blood vessels

Drexel biomedical engineer identifies immune cell as potential strategy for growing blood vessels

In what could be a pivotal step toward repairing non-healing wounds and damaged organs, a Drexel University biomedical engineer has identified an immune cell as a potential strategy for growing blood vessels. [More]
Scientists demonstrate workings of CCL2 mechanism that stimulates nerve regeneration

Scientists demonstrate workings of CCL2 mechanism that stimulates nerve regeneration

The peripheral nervous system is a vast network of nerves that exists primarily outside of brain and spinal cord and connects to the far reaches of the body. The very expanse of peripheral nerves makes them highly vulnerable to injuries such as blunt-force blows, cuts, and leg and arm fractures, as well as diseases that attack peripheral nerves such as diabetes, Charcot-Marie-Tooth, and Guillain-Barre syndrome. [More]
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