tissues 2 7

Tag: "tissues" at biology news

New understanding of regeneration gained by Forsyth scientists

...ding of how we can possibly direct this process in tissues that don't currently regenerate; this has clear ap...ding the mechanisms of signaling between cells and tissues that allows a biological system to reliably generate and maintain a complex morphology. The Levin t...

Gene Expression in the Aging Brain

...theory predicts that the most metabolically active tissues should show the greatest age-related reduction in ..., including whether metabolically active non-brain tissues display similar patterns of changes, and whether the divergence between human and chimp patterns was...

Navigating the brain for sense of direction as paradigm for higher cognitive functions

...theory predicts that the most metabolically active tissues should show the greatest age-related reduction in ..., including whether metabolically active non-brain tissues display similar patterns of changes, and whether the divergence between human and chimp patterns was...

Carnegie Mellon scientists create PNA molecule with potential to build nanodevices

...theory predicts that the most metabolically active tissues should show the greatest age-related reduction in ..., including whether metabolically active non-brain tissues display similar patterns of changes, and whether the divergence between human and chimp patterns was...

PET imaging reveals the immune system at work

...mmune system mistakenly identifies native cells or tissues as foreign and mounts an attack. The techniques they've developed should now enable scientists -- and one day clinicians -- to observe the ebb and flow of the immune system over the course of an episode of disease or autoimmune response, said Witte....

Jefferson biologist coaxing human embryonic stem cells to make dopamine with simpler, faster method

...mmune system mistakenly identifies native cells or tissues as foreign and mounts an attack. The techniques they've developed should now enable scientists -- and one day clinicians -- to observe the ebb and flow of the immune system over the course of an episode of disease or autoimmune response, said Witte....

Limiting the damage in stroke

... The effects are long-term; neurons in the damaged tissues were still alive several days after the stroke. Two factors make the study promising in the search for treatments for this deadly disease. First, shutting down the IKK2 signal had beneficial effects even when it was done a few hours after the stroke...

Genes involved in biofilms

...tions associated to medical implants such as those tissues involving infections of the middle ear, of the prostate gland, pneumonia in patients with cystic fibrosis, osteomyelitis, etc. In the interior of the biofilm, bacteria present greater resistance to antibiotics, to the opsonisation by antibodies and...

From one cell, many possible cures

...it far more research -- and allow faster growth of tissues that can be transplanted into patients. Teng Ma, ... heart muscle, fat or nerve tissue," Ma said. "The tissues grown then will be suitable for clinical transplantation." He added that stem cells can live for up ...

UK sperm donor crisis

...tandards relating to the handling and use of human tissues and cells may also lead to further reductions in donor treatment activity. On the other hand, the demand for donor sperm is likely to increase because of a possible decline in the semen quality in the general UK population." The potential gap betwee...

Group proves it's possible to grow new lung alveoli by growing new blood vessels

...ungs through ultra-fine epithelial and endothelial tissues into the blood; carbon dioxide diffuses from the blood into the alveoli. In an infant's underdeveloped lungs, the alveoli are larger and fewer and there are fewer developed capillaries. It's a condition that leaves them gasping--and one that is share...

'Good' bacteria could save patients from infection infection by deadlier ones

... approach, perhaps, should be applied to patients' tissues that are to be exposed to surgery. Admitting that his ideas may sound absurd to some, the fact is that MRSA has become widespread in hospitals - including in Israel as well as the UK -- where the most advanced antibiotics and most rigorous antisept...

Genetic key to growth of new arteries is identified

...ried a marker gene, beta galactosidase, that turns tissues blue. Different strains of the mice had different fragments of the MMP2 gene coupled to the so-called blue gene. Leg muscles turned blue only in the strain of mice with the specific gene fragment that turns on in response to arterial blockage. In t...

UCSD study finds anthrax toxins also harmful to fruit flies

...rning how these toxins attack developing and adult tissues is important because it can help scientists understand how they function at the molecular level and may lead to new therapeutic strategies for neutralizing their effects in humans. Annabel Guichard, a biologist at UCSD and lead author of the study, ...

Bioengineers create stable networks of blood vessels

...work of fine blood vessels critical for supporting tissues in the body, according to a report in the Proceedings of the National Academy of Sciences. For body tissue to survive it must receive oxygen delivered through the finest of blood vessels. Led by Erin Lavik, assistant professor of Biomedical Enginee...

Source of crucial immune cell in the skin discovered

... numbers of Langerhans cells infiltrate organs and tissues throughout the body. So, targeting the pathway by which these cells are formed could lead to new therapies to help children who now face the possibility of lifelong complications. "It is known that Csf-1 levels are elevated in patients with Langerh...

Swiss researchers develop all-in-one remote control gene expression tool

...licable for use in stem cells, embryonic cells and tissues and organs that are amenable to genetic transduction. "It's a flexible way to regulate the expression of genes in a cell," says EPFL professor Didier Trono. "The lentiviral vector integrates in an irreversible fashion into the cell and is then part ...

Carnegie Mellon develops non-invasive technique to detect transplant rejection at cellular level

...vely by observing macrophage accumulation in heart tissues using MRI. "We were able to use MRI to visualize individual macrophages. By tracking individual cells, we also were able to observe, for the first time, that rejection progresses from the outside of the heart to the inside," said Ho. "Up to now, th...

New evidence questions the simple link between prion proteins and madcow disease

...ction to be acquired from the mouth then the first tissues to accumulate infectivity would be lymph nodes in the throat or the tonsils. But we don't tend to see this in animals, and have no reason to believe it would be different in humans," comments Jeffrey. ...

Technique makes it easier to see mouse embryo in all its glory

...ethod, the intact embryo is stained to distinguish tissues (organs, developing bone and soft tissue) and is digitally scanned at high resolution using x-ray computed tomography. Computational methods are applied to analyze embryo organs for defects. "From the moment of conception, the mice under study are...

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