Subtopic Deep Dive
Pleuromutilin Antibiotics in Veterinary Enteric Diseases
Research Guide
What is Pleuromutilin Antibiotics in Veterinary Enteric Diseases?
Pleuromutilin antibiotics, including tiamulin and valnemulin, target veterinary enteric diseases caused by Brachyspira hyodysenteriae and Lawsonia intracellularis in swine through inhibition of bacterial protein synthesis.
Pleuromutilins selectively bind to the peptidyl transferase center of the bacterial ribosome, showing efficacy against swine dysentery and proliferative enteropathy. Key studies evaluate their pharmacokinetics, resistance profiles, and clinical outcomes in pig herds. Over 20 papers since 2011 document their role, with Paukner and Riedl (2016) cited 194 times for mode of action details.
Why It Matters
Pleuromutilins preserve treatment options for resistant Brachyspira and Lawsonia infections in swine production, reducing mortality and growth losses. Alban et al. (2017) assessed public health risks from Danish pleuromutilin use, showing low resistance transfer potential. EFSA Panel (2021) identified resistant bacteria threats in swine diseases, emphasizing surveillance needs. Álvarez-Ordóñez et al. (2013) quantified swine dysentery's economic impact, where pleuromutilins remain effective.
Key Research Challenges
Resistance Emergence in Brachyspira
Brachyspira hyodysenteriae isolates show variable susceptibility to tiamulin across farms. Żmudzki et al. (2012) tested 21 Polish farms, finding MIC elevations. Hampson et al. (2015) noted weakly haemolytic strains complicating treatment.
Pharmacokinetics in Swine Herds
Tiamulin distribution varies with feed premixes and disease state. Krasucka et al. (2011) developed HPLC methods for premix analysis. Alban et al. (2017) modeled Danish usage risks, highlighting dosing optimization needs.
Transmission and Surveillance Gaps
Brachyspira spreads via transport between farms. Giacomini et al. (2018) traced outbreaks in fattening units. Hampson et al. (2015) called for enhanced surveillance of emerging strains.
Essential Papers
Pleuromutilins: Potent Drugs for Resistant Bugs—Mode of Action and Resistance
Susanne Paukner, Rosemarie Riedl · 2016 · Cold Spring Harbor Perspectives in Medicine · 194 citations
Pleuromutilins are antibiotics that selectively inhibit bacterial translation and are semisynthetic derivatives of the naturally occurring tricyclic diterpenoid pleuromutilin, which received its na...
Swine Dysentery: Aetiology, Pathogenicity, Determinants of Transmission and the Fight against the Disease
Avelino Álvarez‐Ordóñez, Francisco Javier Martínez-Lobo, Héctor Argüello et al. · 2013 · International Journal of Environmental Research and Public Health · 90 citations
Swine Dysentery (SD) is a severe mucohaemorhagic enteric disease of pigs caused by Brachyspira hyodysenteriae, which has a large impact on pig production and causes important losses due to mortalit...
Lawsonia intracellularis: Revisiting the Disease Ecology and Control of This Fastidious Pathogen in Pigs
Anbu K. Karuppannan, Tanja Opriessnig · 2018 · Frontiers in Veterinary Science · 69 citations
<i>Lawsonia intracellularis</i> is an anaerobic obligate intracellular bacterium infecting the small intestine and infrequently also the large intestine of pigs and other animals including hamsters...
Emergence of Brachyspira species and strains: reinforcing the need for surveillance
D.J. Hampson, Tom La, Nyree D. Phillips · 2015 · Porcine Health Management · 43 citations
This short review discusses the increasing complexity that has developed around the understanding of <i>Brachyspira</i> species that infect pigs, and their ability to cause disease. It describes th...
An Investigation into the Etiological Agents of Swine Dysentery in Australian Pig Herds
Tom La, Nyree D. Phillips, D.J. Hampson · 2016 · PLoS ONE · 33 citations
Swine dysentery (SD) is a mucohemorrhagic colitis, classically seen in grower/finisher pigs and caused by infection with the anaerobic intestinal spirochete Brachyspira hyodysenteriae. More recentl...
Assessment of animal diseases caused by bacteria resistant to antimicrobials: Swine
no-firstname EFSA Panel on Animal Health and Welfare, Søren Saxmose Nielsen, Dominique Bicout et al. · 2021 · EFSA Journal · 26 citations
In this opinion, the antimicrobial-resistant bacteria responsible for transmissible diseases that constitute a threat to the health of pigs have been assessed. The assessment has been performed fol...
Assessment of the Risk to Public Health due to Use of Antimicrobials in Pigs—An Example of Pleuromutilins in Denmark
Lis Alban, Johanne Ellis‐Iversen, Margit Andreasen et al. · 2017 · Frontiers in Veterinary Science · 26 citations
Antibiotic consumption in pigs can be optimized by developing treatment guidelines, which encourage veterinarians to use effective drugs with low probability of developing resistance of importance ...
Reading Guide
Foundational Papers
Start with Álvarez-Ordóñez et al. (2013, 90 citations) for swine dysentery etiology and pleuromutilin role; Żmudzki et al. (2012, 21 citations) for baseline susceptibility data; Krasucka et al. (2011) for tiamulin analytics.
Recent Advances
Study Paukner and Riedl (2016, 194 citations) for resistance mechanisms; Karuppannan and Opriessnig (2018, 69 citations) for Lawsonia control; EFSA Panel (2021, 26 citations) for antimicrobial threats.
Core Methods
Agar dilution for MICs (Żmudzki et al., 2012); HPLC for tiamulin in feed (Krasucka et al., 2011); IHC for Lawsonia detection (Szczotka et al., 2011); proteome analysis (Casas et al., 2016).
How PapersFlow Helps You Research Pleuromutilin Antibiotics in Veterinary Enteric Diseases
Discover & Search
Research Agent uses searchPapers with 'pleuromutilin tiamulin Brachyspira swine dysentery' to retrieve 20+ papers like Paukner and Riedl (2016), then citationGraph maps resistance studies from Żmudzki et al. (2012) to EFSA (2021). exaSearch uncovers Danish farm data from Alban et al. (2017); findSimilarPapers expands to valnemulin protocols.
Analyze & Verify
Analysis Agent applies readPaperContent to extract MIC data from Żmudzki et al. (2012), then runPythonAnalysis with pandas computes resistance trends across 21 farms. verifyResponse (CoVe) cross-checks claims against Hampson et al. (2015); GRADE grading scores evidence quality for tiamulin efficacy in swine dysentery.
Synthesize & Write
Synthesis Agent detects gaps in resistance surveillance via contradiction flagging between Polish (Żmudzki et al., 2012) and Danish (Alban et al., 2017) data. Writing Agent uses latexEditText for protocols, latexSyncCitations for 10-paper bibliographies, and latexCompile for herd trial reports; exportMermaid diagrams Brachyspira transmission networks.
Use Cases
"Analyze tiamulin MIC distributions from Polish Brachyspira isolates"
Research Agent → searchPapers → Analysis Agent → readPaperContent (Żmudzki et al. 2012) → runPythonAnalysis (pandas histogram of MICs) → matplotlib plot of resistance thresholds.
"Draft LaTeX review on pleuromutilin protocols for Lawsonia enteropathy"
Synthesis Agent → gap detection → Writing Agent → latexEditText (protocol sections) → latexSyncCitations (Karuppannan and Opriessnig 2018) → latexCompile → PDF with swine trial tables.
"Find code for Brachyspira proteome analysis in pleuromutilin studies"
Research Agent → paperExtractUrls (Casas et al. 2016) → paperFindGithubRepo → githubRepoInspect → runPythonAnalysis (adapt proteome scripts for resistance protein visualization).
Automated Workflows
Deep Research workflow scans 50+ papers on pleuromutilins via searchPapers → citationGraph → structured report ranking tiamulin efficacy by citation clusters. DeepScan applies 7-step CoVe to verify resistance claims from Żmudzki et al. (2012) against EFSA (2021). Theorizer generates hypotheses on valnemulin synergies from pharmacokinetics data in Krasucka et al. (2011).
Frequently Asked Questions
What defines pleuromutilin antibiotics in veterinary use?
Semisynthetic derivatives of pleuromutilin from Pleurotus fungi, tiamulin and valnemulin inhibit bacterial translation at the ribosome's peptidyl transferase center (Paukner and Riedl, 2016).
What methods test Brachyspira susceptibility to pleuromutilins?
Agar dilution measures MICs; Żmudzki et al. (2012) applied it to 206 Polish isolates, finding tiamulin resistance in 15%.
Which key papers cover pleuromutilins in swine enteric diseases?
Paukner and Riedl (2016, 194 citations) on mode of action; Álvarez-Ordóñez et al. (2013, 90 citations) on swine dysentery control; Alban et al. (2017) on risk assessment.
What open problems exist in pleuromutilin research?
Emerging Brachyspira strains evade surveillance (Hampson et al., 2015); transport spreads resistance (Giacomini et al., 2018); public health risks need modeling (EFSA, 2021).
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