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Tag: "blood" at biology news

Increased risk of osteoporosis associated with gene that one in five people have

...on, was found in women who had significantly lower blood estrogen levels and higher levels of urinary estrogen breakdown products than normal. These women also had a higher than normal urinary concentration of a marker that indicates bone resorption and had significantly lower than normal bone density in r...

New Drugs For Bad Bugs: UF Approach Could Bolster Antibiotic Arsenal

...teria or how a drug kills bacteria. “In the past, blood samples were taken and the serum concentration of ...ight place to look. Most infections are not in the blood but in other sites of the body. Some of the recommendations we have may not be the optimal doses.?/p...

Single stem cells from bone heal a broken heart

...generation of new heart cells and formation of new blood vessels ?two key components of successful myocardial repair. The results provide a foundation on which new approaches to repair the damaged heart can be based. Related : Clonally expanded novel multipotent stem cells from human bone marrow regenera...

Researchers identify protein crucial for survival of Lyme-disease bacterium

...t the protein, bacteria were unable to utilize the blood on which the tick feeds when it bites a victim. "...s far as we can tell, Bb bacteria normally utilize blood as their main nutrient source, just as the tick does," said Dr. Michael Norgard, chairman of microbi...

Multi-purpose protein regulates new protein synthesis and immune cell development

...r cells which develop into many different types of blood and immune cells ?than normal mice. Zhang transpl... deficient in IRE1 could reconstitute all types of blood and immune cells in the transplanted mice, but their mature B lymphocytes were defective. Without IR...

New insight into regulation of blood stem cells

...ant advance toward understanding the regulation of blood stem cells and the complex, lifelong process of blood cell formation. A research study published in the February issue of Developmental Cell expands on pr...

Promising new West Nile therapy cures disease in mice

...body--after finding that antibodies taken from the blood of people who recovered from West Nile fever could...West Nile virus. But antibodies derived from human blood have potential disadvantages: they vary in their ability to fight the disease, and although all prec...

Nanoparticles offer new hope for detection and treatment

... Small, rapidly growing tumors cause growth of new blood vessels, which feed the tumors. To get the particl...plementary "loops" found on cells in newly forming blood vessels. When the nanoparticles hooked the "loops" on the new vessels' cells, they revealed the loca...

Buying Time Through Hibernation on Demand

...cer and prevent injury and death from insufficient blood supply to organs and tissues. "We are, in essence, temporarily converting mice from warm-blooded to cold-blooded creatures, which is exactly the same thing that happens naturally when mammals hibernate," said lead investigator Mark Roth, Ph.D., whos...

Anti cancer virotherapy well tolerated in first human administration, research finds

... of the injections of the viral material and basic blood chemistry and liver enzyme levels remain unchanged in the these two patients. Professor Shafren told conference delegates that these findings suggested that administration of a single dose of CVA21 directly into a cancerous tumour was well tolerated...

U-M team recovers ancient whale in Egyptian desert

...cer and prevent injury and death from insufficient blood supply to organs and tissues. "We are, in essence, temporarily converting mice from warm-blooded to cold-blooded creatures, which is exactly the same thing that happens naturally when mammals hibernate," said lead investigator Mark Roth, Ph.D., whos...

Strongest proof yet found for prion hypothesis

...should also soon facilitate creating a much-needed blood test for prions, which would greatly improve current surveillance techniques for mad cow disease and its human form, new-variant Creutzfeldt-Jakob Syndrome. ...

Disease diagnosis, biodefense among UH chemical research projects

...ny areas of human health, NO is useful in lowering blood pressure, treating cancer and increasing oxygen absorption in lung tissue. Czernuszewicz's research is focused on the roles of salivary nitrophorins in storing and releasing NO and binding histamine by using resonance Raman spectroscopic techniques a...

Protein That Promotes Survival Of Stem Cells Might Be Key To Poor Leukemia Prognosis

...(HSC) give rise to all of the body's red and white blood cells and platelets has now been discovered to dep...ey can complete the task of making huge numbers of blood cells. This process is extremely important during the initial development of the blood system before...

Researchers report new pro-inflammatory role for anti-inflammatory enzyme

...t it synthesizes plays a key role in regulation of blood pressure, platelet aggregation, the reactivity of immune cells and growth of vascular smooth muscle cells," explains Dr. Hobbs. "iNOS is not expressed under normal physiological conditions, but is up-regulated for host-defense purposes." Now, the re...

Infants With Rare Genetic Disease Saved by Cord Blood Stem Cells

...ved if they receive stem cells from umbilical cord blood before symptoms of the disease develop, according ... to the growing body of evidence showing that cord blood can save children with other fatal "lysosomal storage diseases," each of which stems from a specific...

New Estimates For The Causes Of Child Deaths Worldwide

...n half (54%) of all child deaths. Infection of the blood or pneumonia in newborn babies and pneumonia in older children constitute 29% of all deaths. Undernutrition is an underlying cause of 53% of all deaths in children aged younger than 5 years. The investigators also calculated the total numbers and pro...

White Blood Cell 'Waste Disposal' System Plays Critical Regulatory Role

...ritical immune cells. Human neutrophils are white blood cells that are constantly being produced in the bone marrow and released into the blood stream where they migrate out of the blood and roam the body in search of potentially harmful foreig...

Genetically Modified Natural Killer Immune Cells Attack, Kill Leukemia Cells

...nt for acute lymphoblastic leukemia (ALL) or other blood cancers. Results of the St. Jude study are publis...ions of NK cells, the team started with samples of blood containing a variety of different immune system cells. They placed this sample into a dish containin...

Mystery Blood Vessel Disorder Implicated In 'Mini' Strokes

...ly fatal weakening of the main artery that carries blood out from the heart. In an article published onlin...auses. Nearly a quarter of all strokes arise from blood flow problems in the smallest blood vessels of the brain. Patients with the disease are usually foun...

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