genetics, arachidonic acid, and EPA

2.28: co.yt/health/diet/omega-3/
microalgae oil not a good source EPA:
. great this video informs the public
that some may need to use L-methyltetrahydrofolate
to keep homocysteine levels in check.
. this video is associated with this whitepaper:
https://www.foundmyfitness.com/reports/nutrigenomics.pdf
it says "If you’re vegetarian,
one other thing you might consider looking into is
microalgae oil since it has EPA & DHA
without having to be converted from ALA."
-- Dr.Sears claimed one problem with microalgae oil
is that it conains only DHA and not EPA;
and that the body's conversion of DHA to EPA
was not a great source of EPA either;
this is why non-fisheaters can't get
medicinal quantities of EPA without absurd levels of ALA.
. checking one source of microalgae oil
we find it contains only trace amounts of EPA.
. good to know about rs174537 being related to
the level of arachidonic acid levels;
Dr.Sears says high levels of that
should be medicated with high-dose EPA.

Y (male) chromosome degeneration

7.10: news.biol/Y (male) chromosome degeneration:

Professor of Human Genetics
at the University of Oxford since 1997,
Bryan Sykes, discussed his DNA research ,..
Sykes described his work on the
"Seven Daughters of Eve."
The Y (male) chromosome in general has been subject to
more degeneration and mutation than the X (female) chromosome,
and, he warned, if this continues
males might eventually become extinct .
. y-chromosome holding male-ness is decomposing;
we could move male genes to another chromosome,
or we could just clone without males .

[ Primate Y chromosomes, including in humans,
have degenerated so much
that primates will also evolve relatively soon,
new sex determination systems
in about 14 million years in humans.[7][25] ]

Criticism of the book and theory at Discover Magazine/
Jean M Says: June 1st, 2011 at 11:17 am: "(

Bryan Sykes heavily invested,
both academically and commercially,
in his vision of The Seven Daughters of Eve (2001)
– the matriarchs of the European population,
only one of whom (Jasmine i.e. mtDNA J)
he pictured as arriving from the Near East with farming.
The rest he saw as more ancient in Europe.
Unfortunately for Sykes, he was just plain wrong.
Now that aDNA researchers have better techniques
to guard against contamination,
and can test to a much higher degree of
resolution on the mtDNA tree,
the picture has turned completely around.
Two papers last year showed that
Neolithic people in Northern Europe
were completely unrelated to their Mesolithic predecessors,
who were overwhelmingly U4 and U5.
New papers attempting to set their own material in context
do not always reflect the latest discoveries.
There is often a long delay between
submission and publication of a paper.
This is the second paper which has attempted to
reconcile the old Sykes story with
what is emerging from Y-DNA,
not realizing that the Seven Daughters saga
has gone the way of the dodo.
Some of the mtDNA haplogroups found in this study
are indeed ancient in Europe – the U5 for sure.
But not the majority.
.
It no longer looks as though H1 and H3 were
spread from the Franco-Cantabrian refuge
either. See my blog post:
Franco-Cantabrian refuge for what? Not mtDNA H1, H3.)

[. that post is not archived, but there is
a follow up at eupedia.com .]