Depressed polymorphonuclear cell functions in periparturient cows that develop postpartum reproductive diseases

Depressed polymorphonuclear cell functions in periparturient cows that develop postpartum... The study was planned to see if there is any important and significant changes in the PMN function in cows suffering from postpartum reproductive diseases (PRD). Blood sampling was done from 41 pregnant cows on 15 days prepartum (−15d), calving day (0d), 15 days (15d) and 30 days (30d) postpartum and thorough gynaecological examination was performed on 0d, 15d, 30d and 45d for diagnosis of PRD like retained placenta (RP), clinical metritis (CM), clinical endometritis (CE) and delayed involution of uterus (DIU). The heparinised blood was used for isolation of PMN leukocytes for estimation of superoxide (SO), hydrogen peroxide (H2O2) and enzyme myeloperoxidase (MPO) activity in each group of cows. The SO production (ΔOD) was greater for normal (0.19 ± 0.05) than cows suffering from RP (−0.12 ± 0.09), CM (−0.15 ± 0.13) and CE (−0.07 ± 0.05) at -15d. The mean value was greater for normal cows (0.12) than the cows with PRD (0.05 to 0.9) at 30d. The H2O2 production was greater for normal than cows with PRD at all sampling days and significantly greater than cows with RP and CE at 15d (p < 0.01) and 30d (P < 0.05). The MPO activity (μmol/1 × 107) was greater for normal (18.77 ± 1.27) than for RP (12.52 ± 2.57) and CM (11.31 ± 3.30) cows on 0d. The depressed capability of the PMN from the cows with PRD to produce SO, H2O2 and MPO during the periparturient period indicated their association with the development of RP, CM and CE. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Veterinary Research Communications Springer Journals

Depressed polymorphonuclear cell functions in periparturient cows that develop postpartum reproductive diseases

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Publisher
Springer Netherlands
Copyright
Copyright © 2017 by Springer Science+Business Media Dordrecht
Subject
Life Sciences; Zoology; Veterinary Medicine/Veterinary Science
ISSN
0165-7380
eISSN
1573-7446
D.O.I.
10.1007/s11259-017-9691-z
Publisher site
See Article on Publisher Site

Abstract

The study was planned to see if there is any important and significant changes in the PMN function in cows suffering from postpartum reproductive diseases (PRD). Blood sampling was done from 41 pregnant cows on 15 days prepartum (−15d), calving day (0d), 15 days (15d) and 30 days (30d) postpartum and thorough gynaecological examination was performed on 0d, 15d, 30d and 45d for diagnosis of PRD like retained placenta (RP), clinical metritis (CM), clinical endometritis (CE) and delayed involution of uterus (DIU). The heparinised blood was used for isolation of PMN leukocytes for estimation of superoxide (SO), hydrogen peroxide (H2O2) and enzyme myeloperoxidase (MPO) activity in each group of cows. The SO production (ΔOD) was greater for normal (0.19 ± 0.05) than cows suffering from RP (−0.12 ± 0.09), CM (−0.15 ± 0.13) and CE (−0.07 ± 0.05) at -15d. The mean value was greater for normal cows (0.12) than the cows with PRD (0.05 to 0.9) at 30d. The H2O2 production was greater for normal than cows with PRD at all sampling days and significantly greater than cows with RP and CE at 15d (p < 0.01) and 30d (P < 0.05). The MPO activity (μmol/1 × 107) was greater for normal (18.77 ± 1.27) than for RP (12.52 ± 2.57) and CM (11.31 ± 3.30) cows on 0d. The depressed capability of the PMN from the cows with PRD to produce SO, H2O2 and MPO during the periparturient period indicated their association with the development of RP, CM and CE.

Journal

Veterinary Research CommunicationsSpringer Journals

Published: Jun 1, 2017

References

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