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DNA clues to inform conservation in Africa
05-22-2007 · EurekAlert!Tracing the evolutionary history of wildlife could improve global habitat conservation, a major Cardiff University study has found. Researchers in the School of Biosciences analysed the African bushbuck -- a common species which lives in most sub-Saharan habitat types -- to test whether DNA similarity between populations living in different habitats can reveal the similarity of those ecoregions now and in the past.
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Keywords: dna, clues, inform, conservation, africa, clue
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- AGU journal highlights -- Sept. 6, 2007
09-09-2007 · EurekAlert!
Solving the mystery of booming sand dunes, South Asian monsoon shifts south since 1400, Ozone-destroying chemicals wane, Robotic probes improve ocean analysis, Universal rule for repeating earthquakes?, Abrupt climate change clues in tropical Africa, Antarctic ice cores record ancient meteoritic events, New angle on solar wind’s magnetic reconnections, Understanding permeability in sea ice, Global observations of large oceanic eddies, Magnetic reconnection at large and small scales, and Interhemispheric coupling between stratosphere and mesosphere are papers featured in the upcoming issue of Geophysical Research Letters.
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- Prehistoric origins of stomach ulcers uncovered
02-07-2007 · EurekAlert!
Scientists have discovered that the ubiquitous bacteria that causes most painful stomach ulcers has been present in the human digestive system since modern man migrated from Africa over 60,000 years ago. They compared DNA sequence patterns of humans and the Helicobacter pylori bacteria now known to cause most stomach ulcers and found that the genetic differences between human populations that arose as they dispersed from Eastern Africa over thousands of years are mirrored in H.pylori.
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- Susceptibility to Crohn's disease -- an important new clue
04-20-2007 · EurekAlert!
Crohn's disease is a chronic relapsing inflammatory disorder of the intestinal tract that affects an estimated 0.15 percent of people in the developed world. In a genome-wide association study with more than 300,000 single nucleotide polymorphisms -- DNA sequence variations occurring when a single nucleotide in the genome differs between members of a species -- Cécile Libioulle et al. identified a new susceptibility locus for Crohn's disease.
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- New, rare and threatened species discovered in Ghana
12-06-2007 · EurekAlert!
Scientists exploring one of the largest remaining blocks of tropical forest in Western Africa discovered significant populations of new, rare and threatened species underscoring the area's high biological diversity and value. The findings from a 2006 expedition to Ghana's Atewa Range Forest Reserve led by Conservation International's Rapid Assessment Program are presented in a report made public today.
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- Few Clues About African Ancestry To Be Found In Mitochondrial DNA
10-14-2006 · ScienceDaily
Mitochondrial DNA may not hold the key to your origins after all. A study published today in the open access journal BMC Biology reveals that fewer than 10 percent of African American mitochondrial DNA sequences analysed can be matched to mitochondrial DNA from one single African ethnic group. The current study suggests that only one in nine African Americans may be able to find clues about where their ancestors came from, in their mitochondrial DNA.
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- Clues to ensuring anti-HIV drugs are taken in Africa
10-22-2007 · EurekAlert!
HIV-infected patients in the African country of Tanzania were more likely to stop taking their medications and to fail treatment if they had to pay for the drugs themselves.
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- Elephant highways of death
04-02-2007 · EurekAlert!
A new study coordinated by the New York-based Wildlife Conservation Society and other groups found that Central Africa's increasing network of roads -- which are penetrating deeper and deeper into the wildest areas of the Congo Basin -- are becoming highways of death for the little known forest elephant.
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- Dog DNA study yields clues to diverse size of breeds
04-05-2007 · EurekAlert!
A new study published in tomorrow's edition of the research journal Science reveals a genetic marker that may determine whether dogs are big or small, and helps answer a burning question in genetics -- how could dogs as a species have such a tremendous variation in size?
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- Dung happens and helps scientists
02-15-2008 · EurekAlert!
A scientist at Northern Arizona University is in charge of the largest animal dung collection in the world, used for clues about animal evolution and extinction, Ice Age existence and climate change. Researcher Jim Mead admits it is a bizarre resource, but he is one of many around the globe who access dung for DNA information. Mead, a dung authority, continues to grow the collection with specimens from as far away as Siberia.
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- New pathway provides more clues about BRCA1 role in breast cancer
01-15-2008 · EurekAlert!
A breast cancer gene's newly discovered role in repairing damaged DNA may help explain why women who inherit a mutated copy of the gene are at increased risk for developing both breast and ovarian cancer.
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