Tag: "affects" at biology news

Gene-Altered Mice Boost Studies of Cardiomyopathy: Enables Research Into Causes And Treatment Of Heart Failure

...portant cause of congestive heart failure , which affects more than four million Americans. Congestive hear...c (of unknown cause) dilated cardiomyopathy (IDC), affects an estimated 36 out of every 100,000 people. Recent studies have shown that as many as 40 percent o...

Rockefeller University Researchers Continue Search For Genetic Ties To Hearing Loss

...speechcomprehension through profound hearing loss, affects 28 million Americans. Abouttwo in every 1,000 children are severely hearing impaired before adulthood. More than 60 percent of the cases of profound early-onset deafness are caused bygenetic factors, which in most cases are due to single gene mutatio...

Georgia Scientists Study Salt Marsh To Understand Global Warming

...changes microbial activity," Kostka said, "andthat affects chemical and nutrient release." Sapelo's salt marshes provide an ideal model system in which to studybiogeochemical cycling in the environment, Van Cappellen said. Stretching along the eastern coast of North America from Nova Scotia toFlorida, salt m...

FDA Approves Hopkins-Designed Implants To Restore Lost Voices

...pushes the cords together is lost. This condition affects about 5,000to 10,000 people each year and can follow stroke or traumatic injury. It alsocan arise without an identifiable cause, says Charles W. Cummings, M.D.,professor and chairman of otolaryngology-head and neck surgery. There are moreserious co...

Drunken Fruit Flies Reveal Molecular Pathway Regulating Sensitivity To Alcohol

...ac mutation exists in humans, northat any one gene affects sensitivity to alcohol in higher animals. Thesignificance, said Heberlein "is that we have found a pathway that modulates theresponse to alcohol." "Our next step, she said, "is to identify more genes in fruit flies associatedwith alcohol behaviors a...

Potential Solutions For Gulf of Mexico's "Dead Zone" Explored

...ces aquatic life to relocate or kills it. Hypoxia affects many coastal areas of the world, such as the Baltic Seaand Chesapeake Bay. It is also on the increase in shallow coastal areassuch as the Gulf of Mexico, which means a reassessment of priorities isin order, Mitsch said. “Hypoxia may be a standa...

Brain Antibodies Provide New Clues To Origins Of Tourette's

...reptococcal infection. Tourette's syndrome affects approximately five in every 10,000 persons. Because it occurs with high frequency in some families and identical twins, agenetic error has long been suspected as a cause. "However, based on familystudies, it appears that for some individuals, an add...

Scientists Develop New Computer Program To Speed Determination Of Gene Function

...called polymorphisms, and they can alter howa gene affects the body. The markers are used in identifying diseases,predicting risk of disease and in forensics investigations. "Because of all the information coming out of the genome project, thereneeds to be more and more effort in computational biolo...

Discovery Of Plant-Like Metabolic Pathway In Common Parasites Supplies New Targets For Therapy

...f the more than 50 species infect humans.) Malaria affects anestimated 300 million people annually and kills nearly 3 million children eachyear, one every 30 seconds. Drug-resistant strains of malaria are increasinglycommon. Toxoplasmagondii: causes toxoplasmosis. T. gondii infection, extremelycommon ...

Who Needs Flowers? Transgenic Plants Sprout Embryos On Leaves

...l paper establishes LEC1(named for a mutation that affects a sprout's first leaves,called cotyledons) as an important regulatory gene, one thatturns other genes on or off. Now the group wants to find outwhat those other genes are and what they do. The group also hopes to show how LEC1's protein productinter...

Treating Anemia Reduces Risk Of Death For People With HIV

... an inevitable complication of living with HIV and affects up to 95%of people overthe course of infection. Anemia, traditionally has been treated with blood transfusions when the redblood cellprotein hemoglobin drops to severely low levels -- below 8.5 grams perdeciliter. Researchshows, however, that ...

Scientists Identify New Gene That Controls Sleep/Wake Cycle

...kers named double-time after the way in which it affects thelength of the fly's daily cycle. Both fruit flies and humans have activityrhythms that adapt perfectly to a 24-hour cycle of night and day, but theresearchers identified three mutants of double-time that alter this cycle. Thefirst produces an 18...

NASA Research Helps Map Protein Structures -- Key In The Development Of New Disease-Fighting Drugs

...as' disease, a debilitating anddeadly disease that affects more than 20 million people in Latin America andparts of the United States. "These experiments have provided persuasive evidence that growth inmicrogravity can produce crystals of larger size, better shape and higherquality than have been ob...

Defects In Embryonic Development In Lunatic Fringe Knockout Mice

...on and in establishing somiteborders. The mutation affects the "polarity" of somite patterning along theanterior-posterior axis. The researchers hypothesize that the protein encoded by Lunatic fringeand one or both of the Notch Delta-like ligands Dll1 and Dll3 -- a ligand is amolecule that binds to a...

Stargazer Gene Provides New Clues To Calcium Channel Defects In Absence Epilepsy

..." Epilepsy is a neurological disorder that affects approximately onepercent of the U.S. population and has two major forms: absence (petit mal) andconvulsive (grand mal). Absence seizures primarily occur in children and arecharacterized by brief lapses in consciousness during which the person appears...

Gene Patterns Can Predict When--But Not Whether--Alzheimer's Will Strike

...e over age 90 willdevelop the disease. Alzheimer's affects about 4 million Americans today and,unless a cure or preventive strategy can be found, 14 million will have thedisease by 2050....

Common Anti-Viral Medication Prevents Severe Eye Herpes

... of aparticularly harmful form of the disease that affects thousands of Americanseach year. About 400,000 Americans have had some form of ocular herpes and somehave recurrent eye infections. About 25 percent of the 50,000 Americans whoexperience some form of eye herpes each year have stromal keratitis. The...

A New Gene For Mental Retardation

...n, EI Ginns X-Chromosome linked mental retardation affects approximately 1 in 300 males. Although the genetic causes for some of these cases have been discovered,the causes for the majority of the cases remain unidentified. In thisarticle, the authors demonstrate the strong association of a 12 bp mutationin...

New Insights On Sequence of Cell Death After Brain Injury: Understanding Cellular Events After Brain Trauma Could Lead To Better Therapies

..., falls, and sports accidents, amongother reasons, affects nearly two million people every year, with related deathsclaiming more than 56,000, according to the Brain Injury Association. Despitethis, how the brain responds to injury -- in terms of the cellular cascade thatleads to cell death -- is poorly un...

University Of Washington Scientists Discover A Gene That Causes Deafness And Dizziness In Mice

...sting to auditory scientists, because the mutation affects thephysiological function of hair cells, but leave...velop abnormally. The deafwaddler mutation affects the ability of the plasma membrane ofthe cell to transport calcium, which is essential to normal cel...

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