Tag: "hair" at biology news
ESF EURYI award winner aims to stop cancer cells reading their own DNA
...motherapy, avoiding side effects such as temporary hair
loss. Dekker is focusing on an enzyme called Topoisomerase IB that plays a key role in some of the molecular motors involved in the processes of DNA and RNA copying during cell division. These are responsible for reading the genetic code and making ...
Weed gave up sex long ago
...oints on the genome tend to go together, likeblond hair
and blue eyes in humans. This phenomenon, called linkage disequilibrium, is important because ithelps predict what an individuals genome looks like based on informationfrom selected locations. In their Science Express study, published online July...
Synchrotron could help save the Tassie devil
...ges in the devils which could be detected in their hair
before the disease becomes apparent. If we find ...at similar changes could occur in Tasmanian devils hair
when the facial tumour disease is triggered. But, the theory needs to be fully tested, Dr Church sa...
News tips from the Journal of Neuroscience
... examined the output of the ribbon synapse between hair
cells and primary afferent auditory-nerve (AN) fibers in the absence of auditory stimuli. They recorded the spike activity in single AN fibers in anesthetized cats, then used the distributions of the interspike intervals (ISIs) to model spontaneous r...
St. Jude study solves mystery of mammalian ears
... The long-standing argument centers around outer hair
cells, which are rod-shaped cells that respond to ...t of the inner ear called the cochlea, these outer hair
cells sport tufts of hair-like cilia that project into the fluid. The presence of outer hair
... a number of abnormalities, most noticeably marked hair
loss across their trunks and growth retardation. T...kin of nursing pups, which ultimately disrupts the hair
growth cycle and renders them largely bald. In fact, treatment with the common anti-inflammatory asp...
Nature's secrets yield new adhesive material
...ed an article about the adhesive force of a single hair
from the foot of gecko. As lizard fans have long m...ne-tenth the thickness of a human hair, each gecko hair
splits multiple times at the end. These split ends contain cup-like structures called spatulae that...
UVa researchers restore genes in human inner ear cells
...successfully transferred the KCNQ4 gene into human hair
cells harvested from the inner ears of patients wi...hat similar gene therapy compounds can produce new hair
cells and restore hearing function in guinea pigs suggest that the future of gene therapy in the hum...
MU researchers to study the status of black bears in Missouri
... will use a non-invasive sampling technique called hair
snares, barbed wires that remove a few of the bear...out harming the bears themselves. After collecting hair
samples this summer, they will extract DNA from the hair
follicles and use that DNA to estimate the ...
Vets seeing more horses with nutritional issues this year
...ating too much of the element, horses can lose the hair
in the mane and tail and develop a form of laminitis, a painful condition that affects the hoof. If left untreated for too long, a horse with chronic selenosis may require euthanasia as a result of severe laminitis. Johnson said that the amount of ...
Reprogrammed fibroblasts identical to embryonic stem cells
...e mouseeverything from blood to internal organs to hair
color. Next, they bred these mice and found lineages of the reprogrammed cells in the subsequent generation, proving that these new cells had contributed to the germ line. Finally, the team took advantage of another lab technique that involves ...
CSIRO scientists join fight to save 'Tassie devil'
...Jeff Church, is investigating the Tasmanian devils hair
to determine if any chemical or structural changes can be detected that can be correlated with the disease. We are hoping we can work together to develop a pre-clinical diagnostic test based on recent developments in the diagnosis of human breast...
Molecular motors may speed nutrient processing
...brane-moving role in its other known location: the hair
cells of the inner ear, and if other microvilli also use myosin motors to jettison vesicles from their tips....
New research shows sharks use their noses and bodies to locate smells
... problems in humans, senses that are also based on hair
cells. Sharks with their lateral lines intact demonstrated a preference for the odor plume over the seawater plume and, more specifically, for the odor source with the higher turbulence (the brick on the odor side) over the source of the odor alon...
Color vision drove primates to develop red skin and hair, study finds
...richromaticism drove the evolution of red skin and hair
through sexual selection. Fernandez, the study'...or social purposes. "It looks like red skin and hair
became a sexual preference," said Morris, a fish biologist who studies how physical traits such as c...
First demonstration of new hair follicle generation in an animal model
...of Pennsylvania School of Medicine have found that hair
follicles in adult mice regenerate by re-awakening...of this process could lead to novel treatments for hair
loss, other skin and hair
disorders, and wounds. We showed that wound healing triggered an embryo...
DNA sieve -- Nanoscale pores can be tiny analysis labs
...ch is only 1.5 nanometers (the diameter of a human hair
is about 10,000 nanometers) at its smallest point, by an applied electric current. As the molecules pass through the channel, the current flow is reduced in proportion to the size of each individual chain, allowing its mass to be easily derived. In ...
Cat hair at home poses an allergy risk, particularly for young children
... keeping cats, even just repeated contact with cat hair
within or outside the parental household increases the frequency of allergic sensitisation on the basis of the detection of IgE-specific antibodies against cat allergens. The study is based on data of the multicentric LISA study. LISA stands for Li...
Nanotechnology offers hope for treating spinal cord injuries, diabetes and Parkinson's disease
...anofibers thousands of times thinner than a human hair
are the key to not only preventing the formation of harmful scar tissue which inhibits spinal cord healing, but to stimulating the body into regenerating lost or damaged cells." Stupps work hinges on a fundamental area of nanotechnology self-asse...
New report explores nanotechnology's future
...To put this into perspective, the width of a human hair
is approximately 80,000 nanometers. A nanometer-size particle is twice the diameter of a gold atom and a very small fraction of the size of a living cell. Such a particle can be seen only with the most powerful microscopes....
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