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Blood

John Kundzins of the Kidney Research Institute in Seattle models the Wearable Artificial K...

In 2009, we had a look at the Wearable Artificial Kidney (WAK) concept that promised patients suffering from kidney failure an alternative to conventional dialysis. Now the tool-belt sized prototype has been granted approval for human testing in the United States by the FDA with clinical trials scheduled to take place in Seattle later this year.  Read More

 Researchers have developed a blood test that can diagnose depression in adults (Photo: Sh...

Diagnosing depression can be a difficult task, currently relying on patients reporting symptoms – something those suffering depression don't always do – and doctors correctly interpreting them – which isn't easy as the symptoms are non-specific. Now researchers have developed a blood test to diagnose depression in adults, providing the first objective, scientific diagnosis for the condition.  Read More

The prototype biospleen and components (Image: DARPA)

Today, when we think of the dangers of the battlefield, we think of wounds caused by bullets, bombs, and other weapons. But as late as the Spanish American war of 1898, the number of soldiers who died from infectious diseases as opposed to directly from combat injuries was seven to one. Thanks to the discovery of penicillin and other antibiotics, that ratio has swung dramatically the other way, but it’s still a major problem, not only for military personnel, but civilians too. DARPA is developing an artificial spleen, or "biospleen," as a way to help fight deadly infections without antibiotics.  Read More

A sample of the hydrogel turns from blue to green to red, as it takes up glucose

Thanks to a new color-changing hydrogel, there may soon be a more reliable way of continuously monitoring the blood glucose levels of both diabetics and hospital patients. If incorporated into a device such as an implanted pump, it could automatically trigger the release of insulin into the bloodstream as needed.  Read More

The benefits of using sound to separate cells over conventional more aggressive methods me...

Researchers from MIT, Carnegie Mellon University and Pennsylvania State University have developed a novel technique of separating cells with the use of a gentle sound wave. The technique could potentially be used to screen a patient's blood, allowing medical practitioners to isolate rare tumor cells synonymous with diseases such as cancer.  Read More

Scientists believe that a genetic mutation, which is detectable in blood samples, makes so...

While there are a wide range of scenarios that may cause a person to take their own life, the fact is that in a given situation, some people will do so whereas others won't. Scientists at the Johns Hopkins University School of Medicine now believe that this difference can largely be traced to a genetic mutation in the people who are more likely to commit suicide. What's more, this mutation can be detected via a blood test.  Read More

The Earlobe Arterial Blood Collector (EABC) could allow astronauts to measure the impact o...

A novel technique developed by the Microgravity Centre, Brazil, could allow astronauts aboard the ISS to measure the effect that prolonged exposure to microgravity can have on human lung capacity. Research like this is a vital stepping stone to understanding the safety measures needed to keep astronauts alive and healthy on a long journey, such as NASA's planned mission to Mars.  Read More

 Researchers at the University of Bradford claim to have devised a 'universal' blood test ...

Although many dread the prick of a blood test, most would find it a preferable testing method to invasive and expensive biopsies. That's why a blood test for cancer is the goal of many research efforts, including one at the University of Bradford in the UK, where researchers are claiming to have devised a simple universal blood test for the disease that relies on the fact that white blood cells in cancer patients are already damaged from battling cancerous cells.  Read More

Functional human platelets (the orange starfish-like things in the picture) could one day ...

Scientists have already successfully coaxed stem cells into becoming red blood cells, which could be used to create "man-made" blood for transfusion. Red blood cells, however, aren't the only component of human blood. Now, researchers at Harvard-affiliated Brigham and Women’s Hospital have also created functional human platelets, using a bioreactor that simulates the medium in which blood cells are naturally produced – bone marrow.  Read More

The foam is currently injected via this applicator

When a soldier is wounded on an extremity such as an arm or leg, applying a bandage and/or tourniquet to stop the bleeding is typically a fairly straight-ahead process. However, in cases where an injury is received right at the junction between an extremity and the torso – places such as the neck, shoulder or groin – things get a lot trickier. Gauze pads treated with clotting agents are often packed into the wound, although they're not always sufficient for staunching the flow. A group of students from Johns Hopkins University are working on a better alternative, in the form of a hardening foam that's injected into the wound.  Read More

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