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Keyword: genes

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  • Spanish Inquisition left genetic legacy in Iberia

    12/05/2008 1:47:19 PM PST · by forkinsocket · 25 replies · 1,131+ views
    New Scientist ^ | 04 December 2008 | Ewen Callaway
    It's not often that cultural and religious persecution makes countries more diverse, but the Spanish Inquisition might have done just that. One in five Spaniards and Portuguese has a Jewish ancestor, while a tenth of Iberians boast North African ancestors, finds new research. This melting pot probably occurred after centuries of coexistence and tolerance among Muslims, Jews and Christians ended in 1492, when Catholic monarchs converted or expelled the Islamic population, called Moriscos. Sephardic Jews, whose Iberian roots extend to the first century AD, received much the same treatment. "They were given a choice: convert, go, or die," says Mark...
  • Genes of Sephardic Jews still strong in Spain

    12/05/2008 12:21:36 PM PST · by decimon · 18 replies · 957+ views
    Reuters ^ | Dec. 5, 2008 | Teresa Larraz
    MADRID (Reuters) – From the 15th century on, Spain's Jews were mostly expelled or forced to convert, but today some 20 percent of Spanish genes can be traced to Sephardic Jews, a study has found. A report in the American Journal of Human Genetics says almost a fifth of Spaniards' genes are of Sephardic Jewish origin and another 11 percent can be traced to North Africa. "The genetic composition of the current population is the legacy of our diverse cultural and religious past," one of the report's authors, Francesc Calafell, from the evolutionary biology faculty at Pompeu Fabra University in...
  • Doctor heals leukemia patient of AIDS

    11/12/2008 2:53:31 PM PST · by Flavius · 6 replies · 794+ views
    the local ^ | 11/12/08 | the local
    Berlin doctor has reportedly cured a leukemia patient of the deadly AIDS virus, German daily Die Welt reported on Wednesday. For two years now, Dr. Gero Hütter has found no trace of the virus in the 42-year-old American living Berlin, whom he has treated for leukemia at the city’s Charité hospital. The man is AIDS-free despite the fact that he stopped taking his medication for AIDS after the treatment, the paper reported, calling the development a “sensation.”
  • Genetics, DNA - strong Proof of Jews' roots to the land of Israel, not so for Arabs / "palestinians"

    10/18/2008 7:49:39 PM PDT · by PRePublic · 11 replies · 638+ views
    Genetics, DNA - strong Proof of (almost all) Jews' roots to the land of Israel, not so for Arabs /"palestinians" [The "palestinian" Arabs as "cousins" MYTH]Jews and their neighbors: The Middle East With Jews looking increasingly like a relatively cohesive population largely of Middle Eastern origin, the logical next question is how close a genetic relationship exists with other Middle Eastern groups. A study of Israeli Jews and Palestinian Arabs published in 2000 by Israeli researchers revealed what the authors described as "a relatively recent common ancestry." It was greeted with euphoric proclamations that Palestinians and Jews are "brothers." A...
  • Jews and Their DNA

    09/07/2008 9:41:27 AM PDT · by Pharmboy · 31 replies · 435+ views
    Commentary Magazine ^ | Sept, 2008 | Hillel Halkin
    Eight years ago, I published an article in these pages called "Wandering Jews—and Their Genes" (September 2000). At the time I was working on a book about a Tibeto-Burmese ethnic group in the northeast Indian states of Mizoram and Manipur, many of whose members believe that they descend from the biblical tribe of Manasseh, and about a group of Judaizers among them known as the B'nei Menashe, over a thousand of whom live today in Israel as converts to Judaism. This led me to an interest in Jewish historical genetics, then a new discipline. Historical genetics itself was still a...
  • Marriage problems? Husband's genes may be to blame

    09/02/2008 6:33:28 PM PDT · by Pharmboy · 31 replies · 388+ views
    Reuters via Yahoo! ^ | Tue Sep 2, 2008 | Maggie Fox
    The same gene that affects a rodent's ability to mate for life may affect human marriages, Swedish and U.S. researchers reported on Tuesday. Men carrying a common variation of gene involved in brain signaling were more likely to be in unhappy marriages than men with the other version, the team at the Karolinska Institute found. Although they are not sure what the genetic changes do to a man's behavior, some other research suggests it has to do with the ability to communicate and empathize, the team reported in the Proceedings of the National Academy of Sciences. "We never looked at...
  • The Genetic Map of Europe

    08/17/2008 2:13:47 PM PDT · by forkinsocket · 72 replies · 267+ views
    The NY Times ^ | August 13, 2008 | NICHOLAS WADE
    Biologists have constructed a genetic map of Europe showing the degree of relatedness between its various populations. All the populations are quite similar, but the differences are sufficient that it should be possible to devise a forensic test to tell which country in Europe an individual probably comes from, said Manfred Kayser, a geneticist at the Erasmus University Medical Center in the Netherlands. The map shows, at right, the location in Europe where each of the sampled populations live and, at left, the genetic relationship between these 23 populations. The map was constructed by Dr. Kayser, Dr. Oscar Lao and...
  • Genes could explain memory differences between men and women

    07/20/2008 5:52:36 AM PDT · by Soliton · 15 replies · 105+ views
    Telegraph ^ | 20/07/2008 | Richard Gray
    When it comes to memory it is clear that men and women are simply not on the same wavelength. While men may fail to match a woman's ability to remember the date of an anniversary, they are better at storing a seemingly endless cache of facts and figures. Scientists believe they have now uncovered the reason for this difference between the sexes – they make the memories in different ways.
  • Gene found that lets you hold your drink

    07/20/2008 5:43:30 AM PDT · by Soliton · 9 replies · 110+ views
    Scotland on Sunday ^ | 20 July 2008 | Gareth Rose
    RESEARCHERS believe they have discovered two genes which allow people to hold their drink. Carriers of one or both genes can process alcohol through the body quickly. One effect is that it halves the chance of developing mouth, throat and oesophageal cancer.
  • The Luxurious Growth

    07/18/2008 3:28:57 PM PDT · by forkinsocket · 4 replies · 47+ views
    The NY Times ^ | July 15, 2008 | DAVID BROOKS
    We all know the story of Dr. Frankenstein, the scientist so caught up in his own research that he arrogantly tried to create new life and a new man. Today, if you look at people who study how genetics shape human behavior, you find a collection of anti-Frankensteins. As the research moves along, the scientists grow more modest about what we are close to knowing and achieving. It wasn’t long ago that headlines were blaring about the discovery of an aggression gene, a happiness gene or a depression gene. The implication was obvious: We’re beginning to understand the wellsprings of...
  • Study finds genetic link to violence, delinquency

    07/14/2008 12:01:34 PM PDT · by Pharmboy · 36 replies · 172+ views
    Reuters via Yahoo! ^ | 7-14-08 | Maggie Fox, Health and Science Editor
    Three genes may play a strong role in determining why some young men raised in rough neighborhoods or deprived families become violent criminals, while others do not, U.S. researchers reported on Monday. One gene called MAOA that played an especially strong role has been shown in other studies to affect antisocial behavior -- and it was disturbingly common, the team at the University of North Carolina reported. People with a particular variation of the MAOA gene called 2R were very prone to criminal and delinquent behavior, said sociology professor Guang Guo, who led the study. "I don't want to say...
  • The Secret To Long Life May Not Be In The Genes

    05/05/2008 9:14:22 PM PDT · by blam · 14 replies · 131+ views
    Science Daily ^ | 5-6-2008 | Universitat Autonoma de Barcelona.
    The Secret To Long Life May Not Be In The Genes ScienceDaily (May 6, 2008) — A research on the bone health of one of the oldest persons in the world, who recently died at the age of 114, reveals that there were no genetic modifications which could have contributed to this longevity. The research team, directed by Universitat Autònoma de Barcelona professor Adolfo Díez Pérez, pointed out a healthy lifestyle, a Mediterranean diet, a temperate climate and regular physical activity as the reasons for his excellent health. The research team studied the bone mass and analysed the genetics of...
  • Technique Traces Origins Of Disease Genes In Mixed Human Populations

    04/09/2008 7:14:50 PM PDT · by blam · 6 replies · 97+ views
    Science Daily ^ | 4-9-2008 | Washington University in St. Louis
    Technique Traces Origins Of Disease Genes In Mixed Human Populations ScienceDaily (Apr. 9, 2008) — A team of researchers from Washington University in St. Louis and the Israeli Institute of Technology (Technion) in Haifa has developed a technique to detect the ancestry of disease genes in hybrid, or mixed, human populations. The technique, called expected mutual information (EMI), determines how a set of DNA markers is likely to show the ancestral origin of locations on each chromosome. The team constructed an algorithm for the technique that selects panels of DNA markers that render the best picture of ancestral origin of...
  • Fear in the genes - Fear is partly down to your genes, but this process changes as you grow older.

    04/09/2008 12:09:28 AM PDT · by neverdem · 11 replies · 69+ views
    Nature News ^ | 8 April 2008 | Susan Brown
    If snakes strike terror in your toddler’s heart, he might still grow to be brave. A tendency toward fearfulness does have genetic underpinnings, but those shift several times as children become adults, a study has found. The worries of adolescents differ from those of young children — fear of the dark gives way to squeamishness about blood in a well-documented developmental progression. Now, psychiatrist Kenneth Kendler of the Medical College of Virginia in Richmond and his colleagues have found that the genetic factors that leave a person prone to fear also shift during development. To tease apart the effect of...
  • Genes Trigger Phobias In Kids And Teens

    04/07/2008 6:41:48 PM PDT · by blam · 18 replies · 77+ views
    New Scientist ^ | 4-7-2008 | Jim Giles
    Genes trigger phobias in kids and teens 21:00 07 April 2008 NewScientist.com news service Jim Giles Our response to the things that scare us, from threatening men on dark streets to hairy spiders in the bath, is programmed to become active at different times in our lives, suggest two studies on the genetics of fear. Scientists already know that fears and phobias are shaped in part by genes. Identical twins, for example, are more likely to develop phobias for the same objects, such as snakes or rats, than non-identical twins. But less is known about when the genes involved act...
  • 'Ruthlessness gene' discovered - Dictatorial behaviour may be partly genetic, study suggests.

    04/05/2008 8:27:42 PM PDT · by neverdem · 38 replies · 553+ views
    Nature News ^ | 4 April 2008 | Michael Hopkin
    Could a gene be partly responsible for the behaviour of some of the worlds most infamous dictators? Selfish dictators may owe their behaviour partly to their genes, according to a study that claims to have found a genetic link to ruthlessness. The study might help to explain the money-grabbing tendencies of those with a Machiavellian streak — from national dictators down to 'little Hitlers' found in workplaces the world over. Researchers at the Hebrew University in Jerusalem found a link between a gene called AVPR1a and ruthless behaviour in an economic exercise called the 'Dictator Game'. The exercise allows players...
  • Natural Selection Protected Some East Asian Populations From Alcoholism, Study Suggests

    04/03/2008 5:55:20 PM PDT · by blam · 25 replies · 70+ views
    Science Daily ^ | 4-3-2008 | Yale University
    Natural Selection Protected Some East Asian Populations From Alcoholism, Study Suggests ScienceDaily (Apr. 3, 2008) — Some change in the environment in many East Asian communities during the past few thousand years may have protected residents from becoming alcoholics, a new genetic analysis conducted by Yale School of Medicine researchers suggests. Scientists have long known that many Asians carry variants of genes that help regulate alcohol metabolism. Some of those genetic variants can make people feel uncomfortable, sometimes even ill, when drinking small amounts of alcohol. As a result of the prevalence of this gene, many, but not all, communities...
  • Happiness can be inherited, research finds

    03/06/2008 9:44:08 AM PST · by Pharmboy · 19 replies · 242+ views
    Reuters via Yahoo ^ | 3-6-08 | Michael Kahn
    You can't buy happiness but it looks like you can at least inherit it, British and Australian researchers said on Thursday. A study of nearly 1,000 pairs of identical and non-identical twins found genes control half the personality traits that make people happy while factors such as relationships, health and careers are responsible for the rest of our well-being. "We found that around half the differences in happiness were genetic," said Tim Bates, a researcher at the University of Edinburgh who led the study. "It is really quite surprising." The researchers asked the volunteers -- ranging in age from 25...
  • "Methuselah" Mutation Linked to Longer Life

    03/05/2008 2:29:57 PM PST · by forkinsocket · 17 replies · 268+ views
    Scientific American ^ | March 4, 2008 | JR Minkel
    Study of long-lived Ashkenazi Jews may yield longevity genes galore A type of gene mutation long known to extend the lives of worms, flies and mice also turns up in long-lived humans. Researchers found that among Ashkenazi Jews, those who survived past age 95 were much more likely than their peers to possess one of two similar mutations in the gene for insulinlike growth factor 1 receptor (IGF1R). The mutations seem to make cells less responsive than normal to insulinlike growth factor 1 (IGF1), a key growth hormone secreted by the liver. In past studies, IGF1 disruption increased the life...
  • White Genetically Weaker Than Blacks, Study Finds

    02/22/2008 11:13:54 AM PST · by Sopater · 135 replies · 1,570+ views
    Fox News ^ | Friday, February 22, 2008
    White Americans are both genetically weaker and less diverse than their black compatriots, a Cornell University-led study finds. Researchers analyzed the genetic makeup of 20 Americans of European ancestry and 15 African-Americans. The Europeans showed much less variation among 10,000 tested genes than did the Africans, which was expected, but also that Europeans had many more possibly harmful mutations than did African, which was not.