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Tag: "primates" at medical news

Strange Sex Life of Mole-rats may Provide Clues About Human Infertility

...milar to that in naked mole-rats, and as these are primates the applications to understanding human stress-related infertility arent so far fetched, he said. Humans also vary widely in the way in which they form social bonds with their partners, offspring and kin. By making careful comparisons with model sp...

Completely Neutral Evolutionary Changes Helped Shape Our Genome

...n years ago - right around the time when the first primates emerged. "When new species emerge, their numbers and therefore their genetic differences are very small. This creates a genetic bottleneck during which any changes in the genome will either get eliminated quickly or spread to the whole population ...

Stem Cells Research in Parkinsons Disease

...cutting-edge research study of human stem cells in primates with Parkinsons disease is compelling on several f...opamine-producing cells not enough to improve the primates function by replacing missing neurons. Instead, some stem cells turned into astrocytes, a supportive...

Chinese Eco-tourism Causing Infanticide Among Tibetan Monkeys

...nt to see primates, they will have to go where the primates are, he said. Berman is of the view that many of these visitors are not aware of how they should behave in the vicinity of animals, including monkeys....

Ancient Viral Defense may Explain Susceptibility to HIV: Study

... ancient retrovirus that infected chimps and other primates millions of years ago may be one reason why our species is susceptible to HIV, said a study released Thursday. The gene appears to have been instrumental in protecting man against a four-million-year-old virus, called Pan troglodytes endogenous retr...

Ancient Ancestors Might Have Had a Clue to HIV

...s of itself in the DNA of modern chimpanzees. All primates make TRIM5alpha, which protects them from viruses in the same broad category as HIV. But each species makes a slightly altered version, making them immune to different combinations of such viruses. The type that rhesus macaques produce, for example, ...

Gene Responsible for Ageing Process Discovered and Calorie Restriction Could Help

...rie restriction really works in humans. Studies in primates suggest it does." The latest study focussed on a gene common to nematode worms, mice and humans. When the gene was blocked in the worms, the benefits of a calorie-restricted diet were lost and the worms lived shorter lives. Similarly, when the scie...

UW Establishes Stem Cell and Regenerative Medicine Center

...evelopment in other animals ranging from non-human primates to nematodes, a roundworm widely used in biomedical research. The new center, Kamp says, will serve as a focal point for research by helping to develop core facilities, a seed grant program, funding for post-doctoral fellows and educational and out...

Color Vision Drove Primates to Develop Red Skin and Hair, Study Finds

...searchers at Ohio University have found that after primates evolved the ability to see red, they began to deve..., all have trichromatic vision, which allows these primates to distinguish between blue, green and red colors. Primatologists have disagreed about whether this ...

Neural Stem Cells Reduce Parkinsons Symptoms in Monkeys

...id. The human neural stem cells implanted into the primates survived, migrated, and had a functional impact. Its an important step, but there are a number of studies that need to be done before determining if this would be of any value in clinical settings. Parkinsons disease is caused by a degeneration of...

Gene Responsible for Ageing Process Discovered – and Calorie Restriction Could Hel

...rie restriction really works in humans. Studies in primates suggest it does." The latest study focussed on a gene common to nematode worms, mice and humans. When the gene was blocked in the worms, the benefits of a calorie-restricted diet were lost and the worms lived shorter lives. Similarly, when the scie...

Tumors Targeted Naturally

...rthand, while the cells of humans and other higher primates do not. What humans and primates do produce in abundance is an antibody against the carbohydrate, called anti-Gal. When scientists ...

Four-way Dengue Vaccine a 'success', Say Scientists

... told SciDev,Net that a further study on non-human primates has been conducted and will soon be submitted to a scientific journal for publication by colleagues at the US-based Naval Medical Research Center. Prida Malasit of the Medical Biotechnology Unit in Bangkok, Thailand, welcomed the development. "Ther...

E. Coli Bacteria Migrating Between Humans, Chimps

...d bacterial exchanges between humans and non-human primates – particularly in areas where the animals are know...ed that the exchange of microbes between non-human primates and humans is not new. Two deadly viruses, HIV and Ebola, are believed to be linked to chimpanzees a...

Secret to AIDS Resistance Is in the Blood

... damage to the immune systems of infected nonhuman primates and they do not develop AIDS. Pandrea theorizes that the absence of CCR5 is due to the adaptation of AIDS-resistant monkeys to SIV infection over millennia, while the others only recently have been exposed to SIV or HIV so they have not developed r...

Britain Scientists Support the Use of Primates in Research

...ain's leading scientists have supported the use of primates in medical research to improve human health and re...rt, Sir David Weatherall, said that ‘In some cases primates are essential to answer scientific questions because other animals such as mice and rats are too dif...

Lethal dose of cosmetic injections paralyzed recipients

...rly known, but scientists point to studies done on primates .Those studies suggests that 40 micrograms per kilogram of body weight could be lethal. An investigation that stretched for almost two years , by U.S. Centers for Disease Control has determined that the ill effects of those injections were lethall...

Surgeons Gear Up To Carry Out First Womb Transplant

...ntists have expressed that additional research on primates is required before it is tested on humans....

Lesser Calories for Longer Life

...etting toward a proffered piece of fruit. Rudy and primates like him owe their vigor to certain simple lifestyle modifications called calorie restriction, which involves eating about 30 percent fewer calories than normal while still getting adequate amounts of vitamins, minerals and other nutrients. So far a...

Evolution of Plant Life Cycle

...biology, just as understanding relationships among primates advances our knowledge of human behavior, anatomy and physiology, Qiu said. "As humans, we're always interested in knowing where we came from and why we are different from other primates," Qiu said. "Now that we know, from phylogenetic analyses, tha...

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