Re: [Histonet] Prefer formalin-free fixative
I don't recommend it for the following reasons:
1. It has EXTREMELY harmful effects on many antibodies and on the DNA,
so if the Prefer-fixed specimen will require any IHC or FISH, the
results will be severely compromised because of the fixative.
2. Contrary to what was marketed by the company that sells it, it is
not proven to be safe, and not requiring the strict regulations (in
terms of proper ventilation and disposal). It simply hasn't made it to
the radar screen of OSHA.
I work in a reference lab, and we receive specimens that are fixed in a
variety of fixatives. Prefer fixative is one of the worst in terms of
destroying the IHC and FISH signal.
Hadi Yaziji, M.D.
On Wednesday, October 29, 2003, at 03:23 AM, Amy Self wrote:
> Dear Histonetters,
> Has anyone tried the Prefer formalin-free fixative distributed by
> Anatech LTD.? If so, what were you likes and dislikes about it.
> Thanks in advance for your responses.
> Amy Self
> Georgetown Hospital
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