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Tag: "blood" at biology news

Researchers develop rapid diagnostic tool for pathogen identification

... method for a wide variety of applications such as blood product surveillance, agriculture, forensic microb...tical stages—including outbreak investigation, and blood product screening. Key partners in the work presented in the current publication include the Centro ...

Protein offers way to stop microscopic parasites in their tracks

...st 1 million people per year through damage to red blood cells and clogging of the capillaries that feed the brain and other organs. Cryptosporidium, which causes diarrhea, vomiting and other symptoms, is one of the most common causes of water-borne disease in the world. "These other parasites are more de...

Artifical cornea lets woman blind 20 years see

...me cases it is -- but rather progressive growth of blood vessels and scar tissue throughout an implanted natural cornea, according to researchers. The new cornea eventually becomes as opaque as the original. "The cornea is usually just like a clear window in the eye for people to see through, but sometime...

Vampire bats keep out of trouble by running

...le from which they extract perhaps a tablespoon of blood at a time for sustenance. They feed while their prey are sleeping, spending perhaps 10 minutes drinking from the small cuts they make. However, running may help them avoid being stepped on, Riskin suggests. More likely, the researchers say, the abili...

Potential treatments for neurofibromatosis

...eurofibromatosis because they also are involved in blood vessel formation -- and tumors need blood vessels in order to grow. "We are beginning to have a better understanding of cell to cell interact...

How the environment could be damaging men's reproductive health

... that larger amounts of both CB-153 and DDE in the blood of the fishermen was associated with a statistically significant increase in the proportion of Y chromosome bearing sperm in semen, and that age, smoking and hormone levels had no effect. "When we compared the 20% of fishermen with the highest expos...

Surprising findings reported about iron overload

...Islanders have the highest levels of iron in their blood of all racial/ethnic groups who were screened. In...ing 10,000 African-Americans and 10,000 whites for blood iron levels or the presence of mutations in a gene, called the HFE gene, which evidence suggests reg...

World-first Living Donor Islet Cell Transplant A Success; Procedure Offers Promise For Diabetics

... severely damaged by toxins which circulate in the blood stream after brain death." "Our expectation is th... surgery, the woman had been subject to severe low blood sugar coma attacks, and her glucose control has been transformed by the transplant. Related Web Sit...

UCLA launches $20 million stem cell institute to investigate HIV, cancer and neurological disorders

...lls and reintroducing them into the body. As these blood cells develop, the gene protects the mature cell against HIV infection. The UCLA AIDS Institute already has completed a Phase I clinical trial using adult stem cells. Embryonic stem cells also could be engineered for this strategy to avoid the need f...

Gene Signatures Predict Interferon Response For Multiple Sclerosis Patients

...ted from a class of immune cells called peripheral blood mononuclear cells. After patients started interferon therapy, blood was taken at specific time points over the course of two years. Baranzini et al. measured the expres...

PET/MRI scans may help unravel mechanisms of prenatal drug damage

...rchers said, because cocaine is known to constrict blood vessels in the placenta. It may be that this constriction of placental blood flow is one of the mechanisms underlying the harmful effects of cocaine exposure during pregnancy. ...

Pulsating ultrasound enhances gene therapy for tumors

...ntages of pulsed-HIFU include no scarring, limited blood loss and infections, reduced risk of other complications, shortened recovery time, significant reduction in costs and the potential for many procedures to be done on an outpatient basis. ...

Viral protein influences key cell-signaling pathway

...pread by sexual activity, by contact with infected blood and by infected women to children through breast milk. HTLV-1, like its cousin HIV, inserts its genetic information permanently into the DNA of a T lymphocyte and remains there for the life of the cell. HTLV-1 infection is also lifelong. A hallmark ...

Polymers with copper show promise for implanted sensors

...interfere with their ability to accurately measure blood chemistry. In the bloodstream, clots form on the surface of implanted sensors or blood vessels contract around them. Sensors implanted under the skin may become walled off by cells that f...

Reducing malarial transmission in Africa

...ption there might be inadequate drug levels in the blood of many treated individuals. The authors conclude that although co-artemether as a first-line treatment is not likely to reduce overall transmission of Plasmodium falciparum within the community it might reduce selective transmission of resistant par...

Discovery Promises Simpler Therapy for Sickle Cell Disease

... Their research suggests that an inability of red blood cells to relax blood vessels through the release of nitric oxide is a major factor behind the disease's primary symptoms ...

Molecule that usually protects infection-fighting cells may cause plaque deposits inside arteries

...cker and less elastic. This narrows the space for blood flow and can lead to angina and heart attacks in s...he artery more and more. When the plaque ruptures, blood clots form that can block the artery entirely. Low-density lipoprotein is transported inside arteri...

Iron exporter revealed that may explain common human disorder

...redient of hemoglobin, the protein molecule in red blood cells that carries oxygen from the lungs to the bo...eases it into the bloodstream where developing red blood cells incorporate the iron into hemoglobin. When red blood cells die, macrophage cells consume them ...

Nanoscale Diagnostic Sets Sights on Alzheimer's

...re, doctors could quickly and inexpensively test a blood sample for any number of ailments. The researchers developed BCA to detect a mere few dozen molecules amongst a sample filled with billions and have already experimented with biomarkers for AIDS and prostate cancer. This research was supported by bo...

Stem cells from brain transformed to produce insulin at Stanford

...flies, the cells that produce insulin and regulate blood sugar are, in fact, neurons. Taken together, this ...neural stem cells transformed into cells that line blood vessels - a far cry from a neuron. "That work gave us confidence that these cells could become more ...

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