In article <3cn8l7$2bl at post.its.mcw.edu> skonings at post.its.mcw.edu (Steve Konings) writes:
> Michael Doerrschuck (bzbdoerr at avemaria) wrote:
>
> : I wonder whether anyone has a good and up to date
> : reference to normal ranges for the concentration
> : of C3-Complement and C4-Complement in human peripheral
> : blood serum.
>
>
> I have a source that gives the following ranges for normal values:
>
> C3: 70-150 mg/dL
> C4: 12-38 mg/dL
>
Thank you very much for the information. May I ask you to post the
reference to your source for the values?
Now, I have the following data, and it does not seem to be very
consistent among itself to me:
C3 C4
[mg/dl] [mg/dl]
Lab I 56 - 120 21 - 49
Lab II (Jan 94) 80 - 140 20 - 50
Lab II (May 94) 50 - 90 10 - 40
Steve's Source 70 - 150 12 - 38
Source A 130 50
(Source A: Friemel, Brock: Grundlagen der Immunologie,
Berlin, 1990 )
Does anyone have any idea why the values are so diverse?
Does anyone know the statistical distribution of the Complement
Concentration among the population? I would tend to think, that
neither C3 nor C4 does follow a symmetrical distribution function.
Does anyone know a study explicitely devoted to this topic?
Again, thank you very much!
Michael
--
Michael Doerrschuck
Konrad-Zuse-Zentrum fuer Informationstechnik Berlin
Heilbronner Strasse 10
10711 Berlin-Wilmersdorf
Germany
E-Mail: Doerrschuck at sc.ZIB-Berlin.DE
Telefon: +49-30-89604-268
