GENEALOGY-DNA-L Archives

Archiver > GENEALOGY-DNA > 2004-02 > 1078070253


From: David Faux <>
Subject: Re: [DNA] Mutations and lifestyle factors
Date: Sun, 29 Feb 2004 07:57:33 -0800 (PST)
In-Reply-To: <410-22004202910264162@earthlink.net>


Hello Ernie:

The lifesyle factors, be it smoking or agent orange, would only "show up" in your children. It is unlikely that smoking, for example, would operate at the level of the mitotic processes in the skin cells of the mouth where the samples are collected, but only in the meiosis phases leading to the production of new spem cells. Fortunately we are not required to make the latter sort of "contribution" in order to have our Y-DNA tested. I also suspect that even in you had been exposed to agent orange, the effect would only last for the duration of the explosure since millions of new sperm cells are produced daily. It is not clear to me what would happen to the two smokers in the study from which I quoted if they stopped smoking - how long would it be until all the new sperm cells stopped showing the lifestyle effects and returned to baseline. Of course it is possible that the damage goes "deeper" and effects the germ cells from which the mature sperm are created. All these q!
uestions
could be easily answered with studies on our little furry helpers in the medical field - mice.

David.

ernest hurst <> wrote:
Interesting about Agent Orange - the VA uses Type II Diabetes in Vietnam
vets as "presumptive" evidence of Agent Orange exposure & eligibility for
VA medical benefits. I don't know that I was exposed, but was in Vietnam
1966/67 (USAF) at a base where the "dispensing" aircraft (C123Ks) were
stationed & do have diabetes. Evidently, Agent Orange exposure doesn't
effect the DNA that's used for Y testing, since I have at least 24/25 match
with eight other Hursts - one of them a 25/25 & two of them are also 37/37
match. We don't know exact relationship on any, but closest "possible" is
with Bill Hurst - his 3rd ggf being my 4th ggf, whatever kind of "cousin"
that works out to be.

Ernie Hurst, IBSSG


> [Original Message]
> From:
> To:
> Date: 2/29/2004 4:52:31 AM
> Subject: Re: [DNA] Mutations and lifestyle factors
>
> You might also add an inquiry as to exposure to Agent Orange. I believe
I
> read that it can cause DNA mutations -- nothing was said about WHERE on
the DNA
> those occurred.
>
> Anne
>
>
> ==============================
> Gain access to over two billion names including the new Immigration
> Collection with an Ancestry.com free trial. Click to learn more.
> http://www.ancestry.com/rd/redir.asp?targetid=4930&sourceid=1237



==============================
Gain access to over two billion names including the new Immigration
Collection with an Ancestry.com free trial. Click to learn more.
http://www.ancestry.com/rd/redir.asp?targetid=4930&sourceid=1237


Dr. David K. Faux, P.O. Box 192, Seal Beach, CA, 90740, USA



www.davidkfaux.org


This thread: