THE ACUTE-PHASE AND HEMOSTATIC RESPONSE IN DROMEDARY CAMELS                (CAMELUS DROMEDARIUS)

Eva Maria Greunz; Anne K H Krogh; Wouter Pieters; Olga Amann Ruiz; Julia Bohner; Anja Reckendorf; Davide Monaco; Mads Frost Bertelsen

doi:10.1638/2017-0221.1

THE ACUTE-PHASE AND HEMOSTATIC RESPONSE IN DROMEDARY CAMELS (CAMELUS DROMEDARIUS)

Eva Maria Greunz, Anne K H Krogh, Wouter Pieters, Olga Amann Ruiz, Julia Bohner, Anja Reckendorf, Davide Monaco, Mads Frost Bertelsen

5 Citations (Scopus)

Abstract

Acute-phase reactants indicate inflammation and are increasingly used in veterinary medicine to indicate and to monitor progression of disease. Hemostasis and inflammation have interconnected pathophysiologic pathways and influence each other on different levels. This study established observed normal ranges for acute-phase reactants and for coagulation and thromboelastographic (TEG) parameters in 49 dromedary camels ( Camelus dromedarius) and assessed the response to chronic and acute inflammation. Chronically infected animals suffering from lymph abscessation due to Corynebacterium spp. had significantly higher concentrations of the acute-phase reactants haptoglobin ( P < 0.005) and fibrinogen ( P < 0.013) and an increased clot strength characterized by an increase of the TEG parameters MA ( P < 0.039), representing the maximum amplitude of the clot strengths, and G, the global clot strength ( P < 0.022), compared to healthy animals. When the acute-phase and hemostatic responses of 10 males receiving a gonadotropin-releasing hormone vaccine and of 9 males that were surgically castrated over 7 days were studied, haptoglobin proved to be a minor positive acute-phase protein, with moderate levels in healthy animals. It increased significantly after both vaccination and castration and remained elevated 7 days postinsult. The negative reactant iron significantly decreased over the 7-day period after castration, whereas a similar decrease following vaccination lasted less than 3 days. Fibrinogen reacted as a positive, minor reactant, with a significant increase and a peak on days 3-5, with higher values seen after castration. Prothrombin time showed a slight shortening at days 5-7, and the TEG parameters MA and G showed significantly increased values, similar to fibrinogen. The acute-phase protein serum amyloid A showed poor repeatability, suggesting that the assay was not reliable.

Original language	English
Journal	Journal of Zoo and Wildlife Medicine
Volume	49
Issue number	2
Pages (from-to)	361-370
Number of pages	10
ISSN	1042-7260
DOIs	https://doi.org/10.1638/2017-0221.1
Publication status	Published - Jun 2018

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10.1638/2017-0221.1

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title = "THE ACUTE-PHASE AND HEMOSTATIC RESPONSE IN DROMEDARY CAMELS (CAMELUS DROMEDARIUS)",

abstract = "Acute-phase reactants indicate inflammation and are increasingly used in veterinary medicine to indicate and to monitor progression of disease. Hemostasis and inflammation have interconnected pathophysiologic pathways and influence each other on different levels. This study established observed normal ranges for acute-phase reactants and for coagulation and thromboelastographic (TEG) parameters in 49 dromedary camels ( Camelus dromedarius) and assessed the response to chronic and acute inflammation. Chronically infected animals suffering from lymph abscessation due to Corynebacterium spp. had significantly higher concentrations of the acute-phase reactants haptoglobin ( P < 0.005) and fibrinogen ( P < 0.013) and an increased clot strength characterized by an increase of the TEG parameters MA ( P < 0.039), representing the maximum amplitude of the clot strengths, and G, the global clot strength ( P < 0.022), compared to healthy animals. When the acute-phase and hemostatic responses of 10 males receiving a gonadotropin-releasing hormone vaccine and of 9 males that were surgically castrated over 7 days were studied, haptoglobin proved to be a minor positive acute-phase protein, with moderate levels in healthy animals. It increased significantly after both vaccination and castration and remained elevated 7 days postinsult. The negative reactant iron significantly decreased over the 7-day period after castration, whereas a similar decrease following vaccination lasted less than 3 days. Fibrinogen reacted as a positive, minor reactant, with a significant increase and a peak on days 3-5, with higher values seen after castration. Prothrombin time showed a slight shortening at days 5-7, and the TEG parameters MA and G showed significantly increased values, similar to fibrinogen. The acute-phase protein serum amyloid A showed poor repeatability, suggesting that the assay was not reliable.",

author = "Greunz, {Eva Maria} and Krogh, {Anne K H} and Wouter Pieters and Ruiz, {Olga Amann} and Julia Bohner and Anja Reckendorf and Davide Monaco and Bertelsen, {Mads Frost}",

year = "2018",

month = jun,

doi = "10.1638/2017-0221.1",

language = "English",

volume = "49",

pages = "361--370",

journal = "Journal of Zoo and Wildlife Medicine",

issn = "1042-7260",

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T1 - THE ACUTE-PHASE AND HEMOSTATIC RESPONSE IN DROMEDARY CAMELS (CAMELUS DROMEDARIUS)

AU - Greunz, Eva Maria

AU - Krogh, Anne K H

AU - Pieters, Wouter

AU - Ruiz, Olga Amann

AU - Bohner, Julia

AU - Reckendorf, Anja

AU - Monaco, Davide

AU - Bertelsen, Mads Frost

PY - 2018/6

Y1 - 2018/6

N2 - Acute-phase reactants indicate inflammation and are increasingly used in veterinary medicine to indicate and to monitor progression of disease. Hemostasis and inflammation have interconnected pathophysiologic pathways and influence each other on different levels. This study established observed normal ranges for acute-phase reactants and for coagulation and thromboelastographic (TEG) parameters in 49 dromedary camels ( Camelus dromedarius) and assessed the response to chronic and acute inflammation. Chronically infected animals suffering from lymph abscessation due to Corynebacterium spp. had significantly higher concentrations of the acute-phase reactants haptoglobin ( P < 0.005) and fibrinogen ( P < 0.013) and an increased clot strength characterized by an increase of the TEG parameters MA ( P < 0.039), representing the maximum amplitude of the clot strengths, and G, the global clot strength ( P < 0.022), compared to healthy animals. When the acute-phase and hemostatic responses of 10 males receiving a gonadotropin-releasing hormone vaccine and of 9 males that were surgically castrated over 7 days were studied, haptoglobin proved to be a minor positive acute-phase protein, with moderate levels in healthy animals. It increased significantly after both vaccination and castration and remained elevated 7 days postinsult. The negative reactant iron significantly decreased over the 7-day period after castration, whereas a similar decrease following vaccination lasted less than 3 days. Fibrinogen reacted as a positive, minor reactant, with a significant increase and a peak on days 3-5, with higher values seen after castration. Prothrombin time showed a slight shortening at days 5-7, and the TEG parameters MA and G showed significantly increased values, similar to fibrinogen. The acute-phase protein serum amyloid A showed poor repeatability, suggesting that the assay was not reliable.

AB - Acute-phase reactants indicate inflammation and are increasingly used in veterinary medicine to indicate and to monitor progression of disease. Hemostasis and inflammation have interconnected pathophysiologic pathways and influence each other on different levels. This study established observed normal ranges for acute-phase reactants and for coagulation and thromboelastographic (TEG) parameters in 49 dromedary camels ( Camelus dromedarius) and assessed the response to chronic and acute inflammation. Chronically infected animals suffering from lymph abscessation due to Corynebacterium spp. had significantly higher concentrations of the acute-phase reactants haptoglobin ( P < 0.005) and fibrinogen ( P < 0.013) and an increased clot strength characterized by an increase of the TEG parameters MA ( P < 0.039), representing the maximum amplitude of the clot strengths, and G, the global clot strength ( P < 0.022), compared to healthy animals. When the acute-phase and hemostatic responses of 10 males receiving a gonadotropin-releasing hormone vaccine and of 9 males that were surgically castrated over 7 days were studied, haptoglobin proved to be a minor positive acute-phase protein, with moderate levels in healthy animals. It increased significantly after both vaccination and castration and remained elevated 7 days postinsult. The negative reactant iron significantly decreased over the 7-day period after castration, whereas a similar decrease following vaccination lasted less than 3 days. Fibrinogen reacted as a positive, minor reactant, with a significant increase and a peak on days 3-5, with higher values seen after castration. Prothrombin time showed a slight shortening at days 5-7, and the TEG parameters MA and G showed significantly increased values, similar to fibrinogen. The acute-phase protein serum amyloid A showed poor repeatability, suggesting that the assay was not reliable.

U2 - 10.1638/2017-0221.1

DO - 10.1638/2017-0221.1

M3 - Journal article

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SN - 1042-7260

VL - 49

SP - 361

EP - 370

JO - Journal of Zoo and Wildlife Medicine

JF - Journal of Zoo and Wildlife Medicine

IS - 2

ER -

THE ACUTE-PHASE AND HEMOSTATIC RESPONSE IN DROMEDARY CAMELS (CAMELUS DROMEDARIUS)

Abstract

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