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Tag: "primate" at biology news

Human brain is still evolving

...evidence of accelerated evolution along the entire primate lineage leading to humans, for the entire thirty t...sequences of the two genes among a large number of primate species and searched for sequence differences between humans and nonhuman primates. By doing statist...

Studies on human genome variation provide insight into disease

.../Chorionic Gonadotropin Beta ( LHB/CGB ). During primate evolution, this cluster actively underwent numerous gene duplications and structural rearrangements, allowing the associated genes to acquire new biological functions. In this month's issue of Genome Research , Dr. Maris Laan and her colleagues rep...

Housecat-sized Siberian tiger cubs get collared

.../Chorionic Gonadotropin Beta ( LHB/CGB ). During primate evolution, this cluster actively underwent numerous gene duplications and structural rearrangements, allowing the associated genes to acquire new biological functions. In this month's issue of Genome Research , Dr. Maris Laan and her colleagues rep...

Living anti-HIV gel shows early promise

...s in mice, trials on monkeys exposed to HIV or the primate equivalent (SIV) will have to be successful before the bacteria can be tested in people. "It is a fascinating concept," says Harold Kessler, associate director of the Infectious Diseases Section at Rush University Medical Center in Chicago, United St...

Ancient anthropoid origins discovered in Africa

...esearchers of isolated examples of possible higher primate fossils in Asia do not constitute evidence of an a...species suggest that a 57-million-year-old African primate called Altiatlasius from Morocco might even be the earliest anthropoid ancestor. ...

'Perception' gene tracked humanity's evolution, scientists say

...al University of Vienna first became interested in primate prodynorphin after noticing an unusual amount of variation in the human version's promoter. The scientists decided to examine the prodynorphin gene in human beings around the world and in non-human primates to see whether such variation was commonpla...

Scientists narrow the time limits for the human and chimpanzee split

...s discovered and studied fossil hominids and other primate species that pertain to the question of the human-chimp divergence. "While this research does not pinpoint the precise time of the split, it tells us that proportional differences on branches in family trees should be considered when proposing new t...

Performing monkeys in Asia carry viruses that could jump species to humans

...IDS in humans, is believed to have originated as a primate virus and jumped the species barrier to humans whe...es tested positive for simian foamy virus (SFV), a primate retrovirus that so far has not been shown to cause disease in humans, but that has been detected in ...

There's something fishy about human brain evolution

...ir ?that cute baby fat. Human infants are the only primate babies born with excess fat. It accounts for about...erals that launched Homo sapiens brains past their primate peers, says Dr. Cunnane, the Canada Research Chair in Brain Metabolism and Aging. Brain development...

NHGRI announces new sequencing targets

...equence to existing draft sequences of a number of primate species and add additional sequence information in...s species) and tarsier (Tarsier species), an early primate and evolutionary cousin to monkeys, apes, and humans. NHGRI will base the choice of the eight mammal...

Research updates 65-year-old genetic discovery

...e uses these samples to help zoos, sanctuaries and primate centers identify subspecies of chimpanzees. "My goal is to better understand chimpanzees in their own right and to ultimately help with their preservation," she says. Her samples contributed to this latest research, which found that when compared t...

Major obesity gene is 'lost in the shuffle'

...tween two pieces of DNA that are quite abundant in primate genomes, called Alu elements," explains Nakayama. "We located one copy of a specific Alu element on either side of the ASIP gene. Our study shows that during the evolution of gibbons, these Alu elements lined up and recombined with each other, er...

Chimpanzees can transmit cultural behavior to multiple 'generations'

...ng Links Center, established in 1997 to facilitate primate studies that shed light on human behavioral evolut...dedicated to advancing scientific understanding of primate biology, behavior, veterinary care and conservation, and to improving human health and well-being. T...

UC Davis researchers move biotechnology closer to replacing electronic pacemakers

... test in animal models, utilize the only non-human primate facility in California and eventually partner with physicians at the UC Davis Health System to treat patients," he said. Li and his team previously generated the first genetically engineered human heart cells from human embryonic stem cells, and de...

Seeing the serpent

...us, and the primates respond," Isbell said. Some primate groups less threatened by snakes show fewer signs ...ups. Isbell is currently working on a book about primate origins, including her snake hypothesis. ...

NHGRI announces latest sequencing targets

...t to sequence the genome of at least one non-human primate genome from each of the major positions along the evolutionary primate tree and making available an essential resource for researchers unraveling the genetic factors invol...

Primates take weather into account when searching for fruits

...e abilities have evolved in the social realm. Many primate species live in complex societies, and, the argume...onducted to address its alternative, the idea that primate cognition has evolved to deal with problems of an ecological nature, such as foraging for food. Wit...

Successful transplantation from pig embryos to mice

...eisner, "warrant further, pre-clinical research on primate models." ...

HIV-1's high virulence might be an accident of evolution

... of T cell activation is a fundamental property of primate lentiviruses that likely evolved to maintain viral...so without causing serious damage in their natural primate hosts. Of more than 30 SIVs that have been molecularly characterized, all encode a Nef gene. Howev...

Scientists describe new African monkey genus ?first in 83 years

...scientists have identified a new genus of a living primate from Africa, according to research to be published...f Kipunji. They used the Field Museum's extensive primate collection to compare Kipunji with other primates and found that the skull and external features of ...

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