Impact of an experimental PRRSV and Streptococcus suis coinfection on the pharmacokinetics of ceftiofur hydrochloride after intramuscular injection in pigs

This study determined the impact of porcine reproductive and respiratory syndrome virus (PRRSV) and Streptococcus suis coinfection on the pharmacokinetic (PK) profile of ceftiofur hydrochloride in pigs after intramuscular (i.m.) injection. Eighteen clinically normal crossbred gilts were assigned by...

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Veröffentlicht in:Journal of veterinary pharmacology and therapeutics 2015-10, Vol.38 (5), p.475-481
Hauptverfasser: Day, D. N., Sparks, J. W., Karriker, L. A., Stalder, K. J., Wulf, L. W., Zhang, J., Kinyon, J. M., Stock, M. L., Gehring, R., Wang, C., Ellingson, J., Coetzee, J. F.
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container_end_page 481
container_issue 5
container_start_page 475
container_title Journal of veterinary pharmacology and therapeutics
container_volume 38
creator Day, D. N.
Sparks, J. W.
Karriker, L. A.
Stalder, K. J.
Wulf, L. W.
Zhang, J.
Kinyon, J. M.
Stock, M. L.
Gehring, R.
Wang, C.
Ellingson, J.
Coetzee, J. F.
description This study determined the impact of porcine reproductive and respiratory syndrome virus (PRRSV) and Streptococcus suis coinfection on the pharmacokinetic (PK) profile of ceftiofur hydrochloride in pigs after intramuscular (i.m.) injection. Eighteen clinically normal crossbred gilts were assigned by weight into a challenge group (10 pigs) and control group (eight pigs). Pigs in both groups received a single i.m. injection of ceftiofur hydrochloride (Excenel RTU Sterile Suspension; Zoetis) at a 5 mg/kg BW dose. Serial blood samples were collected to characterize the plasma concentration curve. After a 10 days drug washout period, the challenge group was inoculated with 2 mL of PRRSV isolate VR‐2385 (10⁵.⁷⁵ 50% tissue culture infective doses per mL) intranasally and 8 days later inoculated S. suis. When clinical disease was evident, the second PK assessment began in both challenge and control groups. Coinfected pigs demonstrated lower values of AUC and CMAX, but higher values of Cl/F and Vz/F indicating drug kinetics were altered by infection. The data from this study have implications on ceftiofur treatment regimens in diseased pigs.
doi_str_mv 10.1111/jvp.12209
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N. ; Sparks, J. W. ; Karriker, L. A. ; Stalder, K. J. ; Wulf, L. W. ; Zhang, J. ; Kinyon, J. M. ; Stock, M. L. ; Gehring, R. ; Wang, C. ; Ellingson, J. ; Coetzee, J. F.</creator><creatorcontrib>Day, D. N. ; Sparks, J. W. ; Karriker, L. A. ; Stalder, K. J. ; Wulf, L. W. ; Zhang, J. ; Kinyon, J. M. ; Stock, M. L. ; Gehring, R. ; Wang, C. ; Ellingson, J. ; Coetzee, J. F.</creatorcontrib><description>This study determined the impact of porcine reproductive and respiratory syndrome virus (PRRSV) and Streptococcus suis coinfection on the pharmacokinetic (PK) profile of ceftiofur hydrochloride in pigs after intramuscular (i.m.) injection. Eighteen clinically normal crossbred gilts were assigned by weight into a challenge group (10 pigs) and control group (eight pigs). Pigs in both groups received a single i.m. injection of ceftiofur hydrochloride (Excenel RTU Sterile Suspension; Zoetis) at a 5 mg/kg BW dose. Serial blood samples were collected to characterize the plasma concentration curve. After a 10 days drug washout period, the challenge group was inoculated with 2 mL of PRRSV isolate VR‐2385 (10⁵.⁷⁵ 50% tissue culture infective doses per mL) intranasally and 8 days later inoculated S. suis. When clinical disease was evident, the second PK assessment began in both challenge and control groups. Coinfected pigs demonstrated lower values of AUC and CMAX, but higher values of Cl/F and Vz/F indicating drug kinetics were altered by infection. 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N.</creatorcontrib><creatorcontrib>Sparks, J. W.</creatorcontrib><creatorcontrib>Karriker, L. A.</creatorcontrib><creatorcontrib>Stalder, K. J.</creatorcontrib><creatorcontrib>Wulf, L. W.</creatorcontrib><creatorcontrib>Zhang, J.</creatorcontrib><creatorcontrib>Kinyon, J. M.</creatorcontrib><creatorcontrib>Stock, M. L.</creatorcontrib><creatorcontrib>Gehring, R.</creatorcontrib><creatorcontrib>Wang, C.</creatorcontrib><creatorcontrib>Ellingson, J.</creatorcontrib><creatorcontrib>Coetzee, J. F.</creatorcontrib><title>Impact of an experimental PRRSV and Streptococcus suis coinfection on the pharmacokinetics of ceftiofur hydrochloride after intramuscular injection in pigs</title><title>Journal of veterinary pharmacology and therapeutics</title><addtitle>J. vet. Pharmacol. Therap</addtitle><description>This study determined the impact of porcine reproductive and respiratory syndrome virus (PRRSV) and Streptococcus suis coinfection on the pharmacokinetic (PK) profile of ceftiofur hydrochloride in pigs after intramuscular (i.m.) injection. Eighteen clinically normal crossbred gilts were assigned by weight into a challenge group (10 pigs) and control group (eight pigs). Pigs in both groups received a single i.m. injection of ceftiofur hydrochloride (Excenel RTU Sterile Suspension; Zoetis) at a 5 mg/kg BW dose. Serial blood samples were collected to characterize the plasma concentration curve. After a 10 days drug washout period, the challenge group was inoculated with 2 mL of PRRSV isolate VR‐2385 (10⁵.⁷⁵ 50% tissue culture infective doses per mL) intranasally and 8 days later inoculated S. suis. When clinical disease was evident, the second PK assessment began in both challenge and control groups. Coinfected pigs demonstrated lower values of AUC and CMAX, but higher values of Cl/F and Vz/F indicating drug kinetics were altered by infection. 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F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Impact of an experimental PRRSV and Streptococcus suis coinfection on the pharmacokinetics of ceftiofur hydrochloride after intramuscular injection in pigs</atitle><jtitle>Journal of veterinary pharmacology and therapeutics</jtitle><addtitle>J. vet. Pharmacol. Therap</addtitle><date>2015-10</date><risdate>2015</risdate><volume>38</volume><issue>5</issue><spage>475</spage><epage>481</epage><pages>475-481</pages><issn>0140-7783</issn><eissn>1365-2885</eissn><abstract>This study determined the impact of porcine reproductive and respiratory syndrome virus (PRRSV) and Streptococcus suis coinfection on the pharmacokinetic (PK) profile of ceftiofur hydrochloride in pigs after intramuscular (i.m.) injection. Eighteen clinically normal crossbred gilts were assigned by weight into a challenge group (10 pigs) and control group (eight pigs). 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subjects Animals
Anti-Bacterial Agents - pharmacokinetics
Anti-Bacterial Agents - therapeutic use
Cephalosporins - pharmacokinetics
Cephalosporins - therapeutic use
Coinfection - drug therapy
Coinfection - metabolism
Coinfection - microbiology
Coinfection - veterinary
Coinfection - virology
Female
Injections, Intramuscular - veterinary
Porcine Reproductive and Respiratory Syndrome - drug therapy
Porcine Reproductive and Respiratory Syndrome - metabolism
Porcine Reproductive and Respiratory Syndrome - microbiology
Porcine respiratory and reproductive syndrome virus
Streptococcal Infections - complications
Streptococcal Infections - drug therapy
Streptococcal Infections - microbiology
Streptococcal Infections - veterinary
Streptococcal Infections - virology
Streptococcus suis
Swine - metabolism
Swine - microbiology
Swine - virology
Swine Diseases - drug therapy
Swine Diseases - microbiology
Swine Diseases - virology
title Impact of an experimental PRRSV and Streptococcus suis coinfection on the pharmacokinetics of ceftiofur hydrochloride after intramuscular injection in pigs
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