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Scientists Discover Suicide Gene [Copy link] 中文

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Post time 2014-11-18 11:51:24 |Display all floors
This post was edited by Korea at 2014-11-18 11:51

STRESS KILLS – IF GENES RIGHT

Psychiatrists’ biggest problem, suicide – a mystery to social-environmentalists for a century – yielded to science as a gene, SKA2, was discovered that was massively correlated with suicidal tendences, retro-predicting 86% of attempted suicide cases in people’s youth and forward-predicting 90% of actual suicide cases in a population sample collected at Johns Hopkins University (D.Mail, 31 vii). When not present in double dose, SKA2 was insufficient to get rid of stress hormones like cortisol; and stress itself weakened the operation of the gene.



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Post time 2014-11-18 11:53:25 |Display all floors
This post was edited by Korea at 2014-11-18 12:03

SCHIZOPHRENIA POLYGENIC

After a half-century of nonsense (from the likes of ‘new left’ ‘anti-psychiatrists’ Glaswegian R.D.Laing [a big breeder, incidentally, though dying at 61] and South African David Cooper [surviving 'til 62]) about madness being due to ‘social factors,’ researchers seeking to unpick the complex genetic basis of mental disorders such as schizophrenia took a huge step towards their goal. A paper published in Nature tied 108 genetic locations to schizophrenia — most for the first time.

The encouraging results come on the same day as a US$650-million donation was announced to expand research into psychiatric conditions. Philanthropist Ted Stanley gave the money to the Stanley Center for Psychiatric Research at the Broad Institute in Cambridge, Massachusetts.

The new study had involved 40K schizophrenics and 110K normals. Some of the correlated genes were linked to the formation of dopamine, nervous connections and the immune system. “It’s a stunning confirmation that there are many, many genetic factors” involved in schizophrenia, said Pamela Sklar, a psychiatric geneticist at Mount Sinai School of Medicine in New York.

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Post time 2014-11-18 12:05:35 |Display all floors
BUSINESS BACKS BIOLOGY

After a century of psychologists et al. failing to find anything very much that predicted lasting romantic attraction (apart from similarity in IQ), a dating firm, ‘Singld.c*m’ started following the advice given to E.LU’s Student newspaper {by me} in 2002 (13 ii): to look for complementarity. Using saliva samples from romantic hopefuls, Singld especially looked for prospective couples who differed in DNA markers (Sunday Mail, 20 vii). The first marker tested for was the serotonin uptake controller, which is involved in how people handle positive and negative emotions. The second marker tested for related to the genes influencing the person's immune system. The tests referenced on the website included an experiment at a Swiss university where males were asked to wear the same t-shirt for two consecutive nights. Women who had never met any of the men then smelled each t-shirt, rating the odours from most pleasant to least pleasant. The study revealed that the women reckoned the most pleasant odours (pheromones) to come from the shirts worn by the men with the Human Leukocyte Antigen gene sequence the most opposite to their own.


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Post time 2014-11-18 15:52:56 |Display all floors
So should embryos that have this suicide gene be discarded?

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Post time 2014-11-19 00:05:24 |Display all floors
I don't have these genes.

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Medal of honor

Post time 2014-11-20 00:55:01 |Display all floors
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Post time 2014-11-20 04:28:55 |Display all floors
Is there a peer to peer review ? Where are the references?
Till I get this, this thread is an opnion only

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