[rat-forum] PTH Levels in SD Rat

Michael Tordoff tordoff at monell.org
Tue Feb 7 10:07:59 CST 2012

Hi Rajesh:


In my lab, PTH levels of calcium-replete Sprague Dawley rats are around 30
pg/ml and moderately calcium-deprived rats are 100 - 150 pg/ml (Am J
Physiol., 1996, 270: R505-R517).  I've never seen a value as high as 1150
pg/ml and I doubt this could be obtained by stressing a rat.  My first
thought on obtaining such high values would be to question the assay.  There
are large differences between PTH assays from different manufacturers and
some are more specific than others.  


You would probably get a better idea of stress by measuring corticosterone
than PTH.


Good luck with your renovations,


Mike Tordoff



Michael G. Tordoff, Ph.D.

Monell Chemical Senses Center
Philadelphia, PA 19104, USA


e-mail: tordoff at monell.org

phone & fax: (267)-519-4805

web: www.monell.org <http://www.monell.org/faculty/people/tordoff> 








From: rat-forum-bounces at mcw.edu [mailto:rat-forum-bounces at mcw.edu] On Behalf
Of rajeshanand at lupinpharma.com
Sent: Tuesday, February 07, 2012 1:24 AM
To: rat-forum at mcw.edu
Subject: [rat-forum] PTH Levels in SD Rat
Importance: High


Dear Listers,

Could you please let me know what are the normal Parathyroid Hormone (PTH)
levels in SD outbred rat ?

For the past six months , our animal facility is being renovated. Along with
other mice strains,our SD rat breeding colony animals have also been exposed
to construction related noise and vibrations.The scientist's have observed
basal PTH levels of 1150pg/ml.I wish to know what are the reasons for
elevated levels of PTH ?

Is it possible that noise/vibrations in the area surrounding SD rat animal
quarter could have increased levels of PTH ?



Rajesh K. Anand, Ph.D.,

Scientist In-charge,

Research Animal facility,

Novel Drug Discovery & Development ( NDDD),

Lupin Research Park,

46A/47A,Nande Village,

Taluka Mulshi,


(Maharashtra )


Tel : (020)66749440

Fax ; (020)66749560

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