Haemosiderin deposition in Donkey (Equus asinus) livers: Comparison of quantitative histochemistry for iron and liver iron content.
Post mortem liver samples from 12 donkeys (Equus asinus) aged 21-57 years (4 females, 1 stallion, 7 geldings), were assessed chemically for copper and iron content on a wet weight basis and histologically for stainable iron. Chemical liver copper content ranged from 2.7 to 4.8μg/g (mean 3.5±0.05μg/g). Chemical liver iron content ranged from 524 to 5010μg/g (mean 1723±1258μg/g). Histochemical iron was measured morphometrically using a computer-based image analysis system; percentage section area staining for iron ranged from 0.84% to 26.69% (mean 10.82±8.36%). There was no clear correlation, within the wide range of iron values, between histochemically demonstrable iron and chemically measured iron content. No clear age-related increase was apparent for either parameter in these aged donkeys. The accumulation of iron in the liver of donkeys may represent a physiological haemosiderosis rather than pathological haemochromatosis.
Brown
P J
PJ
School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington Campus, Loughborough, LE12 5RD, UK. Peter.Brown@nottingham.ac.uk
Whitbread
T J
TJ
Burden
F A
FA
Bailey
M
M
Carley
K
K
Daniell
L
L
Jones
C
C
Bell
N J
NJ
D000818:Animals; D018397:Equidae; D005260:Female; D006485:Hemosiderin / Q000737:chemistry / Q000378:metabolism*; D007501:Iron / Q000737:chemistry / Q000378:metabolism*; D008099:Liver / Q000737:chemistry / Q000378:metabolism*; D008297:Male
D006485:Hemosiderin; D007501:Iron