Tag: "hair" at biology news
Model Polymers Reveal New Clues to Protein Folding
...in shapes determine everything from the texture of hair
and horn to thecatalytic coupling and uncoupling of innumerable enzymes essential to keeplife's processes humming. Misfolded proteins can cause disease; in humans,sickle-cell disease and other anemias, for example, are caused by the misfoldingof hemo...
Technique Measures Muscle Contraction At Molecular Level
...s,or 10,000 times smaller than thewidth of a human hair
-- you can't see them by eye or even with a regularmicroscope," Selvin said. "Instead, welabel various parts of the myosin with different dyes and watch how the lightemitted from the dyes changes asthe protein moves." Selvin's measurement technique i...
UCSF Study Finds No Association Between Hair Dye And Non-Hodgkin Lymphoma
...roportion of American women, and some men, who use hair
colorproducts. In a study that included 4,108 part... thatthere is no association between normal use of hair
color products and risk fornon-Hodgkin's lymphoma (NHL), the fifth most common cancer in the United ...
University Of Chicago Professor Wins $50,000 Bristol-Myers Squibb Award For Distinguished Achievement In Infectious Disease Research
...ement,nutritional supplements, infant formulas and hair
and skin care products....
Data Support Idea That Zinc Plays Key Role In Fight Against Anorexia
... and sexual development, a weakened immune system, hair
loss and skin lesions. "For people trying to recover from anorexia, or those who are having trouble holding onto body weight, I believe our work strengthens earlier findings that recommend the use of zinc supplements," Shay said. "Another lab has s...
New Device Brightens Recycling Efforts
...consists of a hand-held probe, which looks like a hair
dryer, connected to a mobile console. The probe illuminates a solid object with a laser and collects the light scattered from the sample, much like a bar-code scanner. "The device uses the principle of Raman spectroscopy to read the informat...
University Of Washington Scientists Discover A Gene That Causes Deafness And
Dizziness In Mice
...rtscalcium ions across the plasma membranes of the hair
cells. The hair
cellstransduce sound and control balance in the auditory and vestibular systems ofthe inner ear. ...
University of Kentucky Neuroscientist Develops Unique Device For Treatment Of Brain Tumors
...mally associated with chemotherapy, such asnausea, hair
loss and fatigue. The survival rates of patients who have triedSerodur is even more impressive. "Most patients with recurrent gliomas live two or three months,"Patchell said. "We've had some patients live three years." Two drugs cur...
Taking The "Ouch" Out Of Needles: Arrays Of "Microneedles" Offer New Technique For Drug Delivery
...needles" much thinner than the diameter of a human hair
could be thebasis for a new drug delivery technique able to administer small quantities ofhigh-potency medications throughthe skin without causing pain. Arrays of the microneedles could improve administration of existingmedications, allow developmen...
UNMC, Boys Town National Research Hospital Researchers Locate Gene That Causes Combined Deafness And Blindness
...nd in bothphotoreceptor cells in the retina and in hair
cells in the inner ear. The haircells have tiny hair-like fibers which help turn sound waves into electricalimpulses that travel to the brain via the auditory nerve. Current research under way at UNMC and Boys Town National ResearchHospital i...
Scientists Use Gene Therapy To Correct Deafness In Mice
...be to transport a protein called actinto inner ear hair
cell fibers during their development. These fiber...zyme, so it cannot bind to actin in the developing hair
cells," Probstsaid. "If they can't get actin to the right place, the hair
cells don't developnormal...
15 Drugs, Dyes And Other Chemicals Newly Listed As Known Or Likely Human Carcinogens
...hraquinone-based dyestuff in severalsemi-permanent hair
dyes and also in coloring fabrics and plastics FURAN, used as a chemical intermediate in the synthesis and production ofother organic compounds. O-NITROANISOLE, used as a precursor in the synthesis of o-anisidine whichis used in the manufacture of mo...
Shuttle Mission's "Neurolab" To Study Nervous System
...he nervous system inpeople with deafness caused by hair
cell damage. The electrode might alsosomeday be used as an interface to signal motor prostheses how and when to move. Tracking the progress of the snails and fish flying aboard Columbia willbe scientists on The Aquatic Team, as they're k...
Getting At The Components Of Mechanotransduction: Genes Required For Vertebrate Sensory Hair Cell Function Identified
...d for mechanotransduction in vertebrate sensory hair
cells. In Christiane Nsslein-Volhard's laboratory ...s appear to have a specific role within sensory hair
cells since they are required for the production of extracellular potential generation, a measure...
Rare Mutation Find May Offer Clues To Treating Osteoporosis
...issing from chromosome 17. Those without the kinky hair
andwith good teeth showed no missing nucleotides. Hart, a dentist and medical geneticist, called the discovery "quiteexciting scientifically," partly because it is the first mutation of its kindever found in humans. A Scottis...
Biologists Map First Gene For Age-Related Hearing Loss In Mice
...heprotein myosin, which causes degeneration of the hair
cells inthe cochlea and the vestibular canals the part of the innerear responsible for balance. Erway said the Ahl cannot be identical to the shaker orwaltzer genes, because Ahl only causes hearing loss, not abalance disorder. However, it could be ...
Genetics May Explain Much Age-Related Hearing Loss
...ls, destructive molecules that can destroy sensory hair
cells of the innerear, suggests preliminary resear...ive damage to livingtissues, including the sensory hair
cells in the inner ear, if they are notneutralized by antioxidant enzymes," McFadden said. "We thin...
Columbia Researchers Identify Gene For Inherited Baldness
...covery could lead to a better understanding of the hair
cycle and,eventually, more effective treatments for various forms of hair
loss. The research, reported in the Jan. 30 issue of Science, suggests thatthe gene initiat...
Duke Lemurs Are Released In Madagascar
... process began with a trimming of theanimals' tail hair
into distinctive patterns, so they could be better identifiedas they were tracked through the forest. "Two of the project's conservation agents then led a traditionalceremony in which they explained the lemur release project to the ancestorsand aske...
Popular 'Cure-All' Tea Can Cause Toxic Reactions
...ing acne, eliminating wrinkles, and restoring gray hair
to its originalcolor. Srinivasan and her co-authors, however, identified these four patientsin whom the effects were far from healthy: A 55-year-old woman with a history of heavy alcohol consumption developedjaundice two months after she st...
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