High density lipoproteins (HDLs) are pivotal in innate immunity and decrease in serum during inflammation. Several studies have been done about lipoprotein changes in transition cows but little is known about their changes in newborn calves. The aim of this study is to provide information about HDLs in newborn calves, by defining the possible age-related changes in healthy calves compared with adults and by assessing the possible differences in calves with inflammation. Lipoprotein electrophoretic separation (reported as percentages) and colorimetric measurement of HDL (HDL-C) were performed on healthy cows and calves in order to identify possible differences in the lipoprotein profile due to the age. Then, age-matched calves with inflammatory conditions were also evaluated. Results showed that in calves HDL% and VLDL% were lower (mean values ± SD: 77.6% ± 8.6% and 2.6% ± 2.5%, respectively) and LDL% was higher (19.7% ± 7.4%) than in adults (89.0% ± 3.9%; 5.2 ± 2.1% and 5.8% ± 3.1%, respectively). Sick calves revealed a decrease of both HDL% (mean values ± SD: 61.0% ± 22.1%) and HDL-C (22.8 ± 11.6 mg/dL) and an increase of VLDL% (12.1% ± 13.1%) compared with controls (77.6% ± 8.6%; 41.5 ± 11.2 mg/dL and 2.6% ± 2.5%, respectively). Paraoxonase-1 activity, influenced by inflammation and oxidation, was measured, and it appeared correlated with HDL% and HDL-C in sick calves. In conclusion, this study revealed that HDLs concentration in healthy calves is lower than in adults, and further decreases in calves with inflammation, likely due to oxidation.

Colorimetric and electrophoretic evaluation of lipoprotein fractions in healthy neonatal calves : comparison with results from adult cows and from calves with inflammatory conditions / A. Giordano, G. Rossi, M. Probo, P. Moretti, S. Paltrinieri. - In: RESEARCH IN VETERINARY SCIENCE. - ISSN 0034-5288. - 111(2017), pp. 108-112. [10.1016/j.rvsc.2017.02.007]

Colorimetric and electrophoretic evaluation of lipoprotein fractions in healthy neonatal calves : comparison with results from adult cows and from calves with inflammatory conditions

A. Giordano
Primo
;
M. Probo;P. Moretti
Penultimo
;
S. Paltrinieri
Ultimo
2017

Abstract

High density lipoproteins (HDLs) are pivotal in innate immunity and decrease in serum during inflammation. Several studies have been done about lipoprotein changes in transition cows but little is known about their changes in newborn calves. The aim of this study is to provide information about HDLs in newborn calves, by defining the possible age-related changes in healthy calves compared with adults and by assessing the possible differences in calves with inflammation. Lipoprotein electrophoretic separation (reported as percentages) and colorimetric measurement of HDL (HDL-C) were performed on healthy cows and calves in order to identify possible differences in the lipoprotein profile due to the age. Then, age-matched calves with inflammatory conditions were also evaluated. Results showed that in calves HDL% and VLDL% were lower (mean values ± SD: 77.6% ± 8.6% and 2.6% ± 2.5%, respectively) and LDL% was higher (19.7% ± 7.4%) than in adults (89.0% ± 3.9%; 5.2 ± 2.1% and 5.8% ± 3.1%, respectively). Sick calves revealed a decrease of both HDL% (mean values ± SD: 61.0% ± 22.1%) and HDL-C (22.8 ± 11.6 mg/dL) and an increase of VLDL% (12.1% ± 13.1%) compared with controls (77.6% ± 8.6%; 41.5 ± 11.2 mg/dL and 2.6% ± 2.5%, respectively). Paraoxonase-1 activity, influenced by inflammation and oxidation, was measured, and it appeared correlated with HDL% and HDL-C in sick calves. In conclusion, this study revealed that HDLs concentration in healthy calves is lower than in adults, and further decreases in calves with inflammation, likely due to oxidation.
Calf; Electrophoresis; High density lipoproteins; Inflammation; Paraoxonase-1; Veterinary (all)
Settore VET/03 - Patologia Generale e Anatomia Patologica Veterinaria
Settore VET/10 - Clinica Ostetrica e Ginecologia Veterinaria
2017
Article (author)
File in questo prodotto:
File Dimensione Formato  
RVSC-S-16-00539.pdf

accesso aperto

Tipologia: Pre-print (manoscritto inviato all'editore)
Dimensione 362.87 kB
Formato Adobe PDF
362.87 kB Adobe PDF Visualizza/Apri
1-s2.0-S0034528817301558-main.pdf

accesso riservato

Tipologia: Publisher's version/PDF
Dimensione 318.71 kB
Formato Adobe PDF
318.71 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/500927
Citazioni
  • ???jsp.display-item.citation.pmc??? 1
  • Scopus 2
  • ???jsp.display-item.citation.isi??? 2
social impact