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Joubran P, Roux FA, Serino M, Deschamps JY. Gut and Urinary Microbiota in Cats with Kidney Stones. Microorganisms 2024; 12:1098. [PMID: 38930480 PMCID: PMC11205531 DOI: 10.3390/microorganisms12061098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 05/10/2024] [Accepted: 05/20/2024] [Indexed: 06/28/2024] Open
Abstract
Upper urinary tract urolithiasis is an emerging disease in cats, with 98% of kidney stones composed of calcium oxalate. In humans, disturbances in the intestinal and urinary microbiota are suspected to contribute to the formation of calcium oxalate stones. We hypothesized that similar mechanisms may be at play in cats. This study examines the intestinal and urinary microbiota of nine cats with kidney stones compared to nine healthy cats before, during, and after treatment with the antibiotic cefovecin, a cephalosporin. Initially, cats with kidney stones displayed a less diverse intestinal microbiota. Antibiotic treatment reduced microbiota diversity in both groups. The absence of specific intestinal bacteria could lead to a loss of the functions these bacteria perform, such as oxalate degradation, which may contribute to the formation of calcium oxalate stones. This study confirms the presence of a distinct urobiome in cats with kidney stones, characterized by greater richness and diversity compared to healthy cats. These findings highlight the potential of microbiota modulation as a strategy to prevent renal lithiasis in cats.
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Affiliation(s)
- Patrick Joubran
- Nutrition, PathoPhysiology and Pharmacology (NP3) Unit, Oniris VetAgro Bio, Nantes-Atlantic College of Veterinary Medicine, Food Science and Engineering, La Chantrerie, CEDEX 03, 44 307 Nantes, France; (P.J.); (F.A.R.)
| | - Françoise A. Roux
- Nutrition, PathoPhysiology and Pharmacology (NP3) Unit, Oniris VetAgro Bio, Nantes-Atlantic College of Veterinary Medicine, Food Science and Engineering, La Chantrerie, CEDEX 03, 44 307 Nantes, France; (P.J.); (F.A.R.)
- Emergency and Critical Care Unit, Oniris VetAgro Bio, Nantes-Atlantic College of Veterinary Medicine, Food Science and Engineering, La Chantrerie, CEDEX 03, 44 307 Nantes, France
| | - Matteo Serino
- IRSD, Institut de Recherche en Santé Digestive, Institut National de la Santé et de la Recherche Médicale (INSERM) U1220, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Ecole Nationale Vétérinaire de Toulouse (ENVT), Université de Toulouse III-Paul Sabatier (UPS), CS 60039, 31 024 Toulouse, France
| | - Jack-Yves Deschamps
- Nutrition, PathoPhysiology and Pharmacology (NP3) Unit, Oniris VetAgro Bio, Nantes-Atlantic College of Veterinary Medicine, Food Science and Engineering, La Chantrerie, CEDEX 03, 44 307 Nantes, France; (P.J.); (F.A.R.)
- Emergency and Critical Care Unit, Oniris VetAgro Bio, Nantes-Atlantic College of Veterinary Medicine, Food Science and Engineering, La Chantrerie, CEDEX 03, 44 307 Nantes, France
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Balboni A, Franzo G, Bano L, Urbani L, Segatore S, Rizzardi A, Cordioli B, Cornaggia M, Terrusi A, Vasylyeva K, Dondi F, Battilani M. No viable bacterial communities reside in the urinary bladder of cats with feline idiopathic cystitis. Res Vet Sci 2024; 168:105137. [PMID: 38181480 DOI: 10.1016/j.rvsc.2024.105137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 12/22/2023] [Accepted: 01/01/2024] [Indexed: 01/07/2024]
Abstract
Urinary microbial diversities have been reported in humans according to sex, age and clinical status, including painful bladder syndrome/interstitial cystitis (PBS/IC). To date, the role of the urinary microbiome in the pathogenesis of PBS/IC is debated. Feline idiopathic cystitis (FIC) is a chronic lower urinary tract disorder affecting cats with similarities to PBS/IC in women and represents an important problem in veterinary medicine as its aetiology is currently unknown. In this study, the presence of a bacterial community residing in the urinary bladder of cats with a diagnosis of FIC was investigated. Nineteen cats with clinical signs and history of FIC and without growing bacteria in standard urine culture were included and urine collected with ultrasound-guided cystocentesis. Bacterial community was investigated using a culture-dependent approach consisted of expanded quantitative urine culture techniques and a culture-independent approach consisted of 16S rRNA NGS. Several methodological practices were adopted to both avoid and detect any contamination or bias introduced by means of urine collection and processing which could be relevant due to the low microbial biomass environment of the bladder and urinary tract, including negative controls analysis. All the cats included showed no growing bacteria in the urine analysed. Although few reads were originated using 16S rRNA NGS, a comparable pattern was observed between urine samples and negative controls, and no taxa were confidently classified as non-contaminant. The results obtained suggest the absence of viable bacteria and of bacterial DNA of urinary origin in the urinary bladder of cats with FIC.
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Affiliation(s)
- Andrea Balboni
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy
| | - Giovanni Franzo
- Department of Animal Medicine, Production and Health, University of Padova, Viale dell'Università 16, 35020, Legnaro, Padova, Italy
| | - Luca Bano
- Diagnostic and Microbiology Laboratory, Istituto Zooprofilattico Sperimentale delle Venezie, Vicolo Mazzini 4, 31020, Villorba, Treviso, Italy
| | - Lorenza Urbani
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy
| | - Sofia Segatore
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy
| | - Alessia Rizzardi
- Diagnostic and Microbiology Laboratory, Istituto Zooprofilattico Sperimentale delle Venezie, Vicolo Mazzini 4, 31020, Villorba, Treviso, Italy
| | - Benedetta Cordioli
- Diagnostic and Microbiology Laboratory, Istituto Zooprofilattico Sperimentale delle Venezie, Vicolo Mazzini 4, 31020, Villorba, Treviso, Italy
| | - Matteo Cornaggia
- Diagnostic and Microbiology Laboratory, Istituto Zooprofilattico Sperimentale delle Venezie, Vicolo Mazzini 4, 31020, Villorba, Treviso, Italy
| | - Alessia Terrusi
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy
| | - Kateryna Vasylyeva
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy
| | - Francesco Dondi
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy.
| | - Mara Battilani
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy
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McGlynn A, Mrofchak R, Madan R, Madden C, Jahid MJ, Mollenkopf D, Wittum T, Justice SS, Rudinsky A, Hokamp J, Hale V. Longitudinal examination of urine pH, specific gravity, protein, culture, and antimicrobial resistance profiles in healthy dogs. J Vet Intern Med 2023; 37:2219-2229. [PMID: 37682015 PMCID: PMC10658500 DOI: 10.1111/jvim.16860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 08/24/2023] [Indexed: 09/09/2023] Open
Abstract
BACKGROUND Urine is routinely evaluated in dogs to assess health. Reference ranges for many urine properties are well established, but the scope of variation in these properties over time within healthy dogs is not well characterized. OBJECTIVES Longitudinally characterize urine properties in healthy dogs over 3 months. ANIMALS Fourteen healthy client-owned dogs. METHODS In this prospective study, dogs were evaluated for health; then, mid-stream free-catch urine was collected from each dog at 12 timepoints over 3 months. Urine pH, urine specific gravity (USG), protein, cultures, and antimicrobial resistance profiles were assessed at each timepoint. RESULTS Urine pH varied within and between dogs over time (Friedman's test: within P = .03; between P < .005). However, USG, protein, and bacterial diversity of urine were consistent within dogs over time, and only varied between dogs (Kruskal-Wallis: between all P < .005). Antimicrobial resistant isolates were identified in 12 out of 14 dogs with 34 of 48 of the isolates demonstrating resistance to amoxicillin. CONCLUSIONS AND CLINICAL IMPORTANCE Urine pH should be assessed at multiple timepoints via pH meter before making clinical decisions. Mid-stream free-catch urine with high concentrations of bacteria (>105 CFU/mL) should not be considered the only indicator of urinary tract infection. Bacterial isolates from dogs in this study had widespread resistance to amoxicillin/oxacillin underscoring the need for antimicrobial stewardship.
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Affiliation(s)
- Andrew McGlynn
- College of Veterinary MedicineThe Ohio State UniversityColumbusOhioUSA
| | - Ryan Mrofchak
- Department of Veterinary Preventive MedicineThe Ohio State UniversityColumbusOhioUSA
| | - Rushil Madan
- College of Veterinary MedicineThe Ohio State UniversityColumbusOhioUSA
- College of Public HealthThe Ohio State UniversityColumbusOhioUSA
| | - Christopher Madden
- Department of Veterinary Preventive MedicineThe Ohio State UniversityColumbusOhioUSA
| | - Mohammad Jawad Jahid
- Department of Veterinary Preventive MedicineThe Ohio State UniversityColumbusOhioUSA
| | - Dixie Mollenkopf
- Department of Veterinary Preventive MedicineThe Ohio State UniversityColumbusOhioUSA
| | - Thomas Wittum
- Department of Veterinary Preventive MedicineThe Ohio State UniversityColumbusOhioUSA
| | | | - Adam Rudinsky
- Department of Veterinary Clinical SciencesThe Ohio State University College of Veterinary MedicineColumbusOhioUSA
| | - Jessica Hokamp
- Department of Veterinary BiosciencesThe Ohio State UniversityColumbusOhioUSA
| | - Vanessa Hale
- Department of Veterinary Preventive MedicineThe Ohio State UniversityColumbusOhioUSA
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Coffey EL, Gomez AM, Ericsson AC, Burton EN, Granick JL, Lulich JP, Furrow E. The impact of urine collection method on canine urinary microbiota detection: a cross-sectional study. BMC Microbiol 2023; 23:101. [PMID: 37055748 PMCID: PMC10100081 DOI: 10.1186/s12866-023-02815-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 03/08/2023] [Indexed: 04/15/2023] Open
Abstract
BACKGROUND The urinary tract harbors unique microbial communities that play important roles in urogenital health and disease. Dogs naturally suffer from several of the same urological disorders as humans (e.g., urinary tract infections, neoplasia, urolithiasis) and represent a valuable translational model for studying the role of urinary microbiota in various disease states. Urine collection technique represents a critical component of urinary microbiota research study design. However, the impact of collection method on the characterization of the canine urinary microbiota remains unknown. Therefore, the objective of this study was to determine whether urine collection technique alters the microbial populations detected in canine urine samples. Urine was collected from asymptomatic dogs by both cystocentesis and midstream voiding. Microbial DNA was isolated from each sample and submitted for amplicon sequencing of the V4 region of the bacterial 16 S rRNA gene, followed by analyses to compare microbial diversity and composition between urine collection techniques. RESULTS Samples collected via midstream voiding exhibited significantly higher sequence read counts (P = .036) and observed richness (P = .0024) than cystocentesis urine. Bray Curtis and Unweighted UniFrac measures of beta diversity showed distinct differences in microbial composition by collection method (P = .0050, R2 = 0.06 and P = .010, R2 = 0.07, respectively). Seven taxa were identified as differentially abundant between groups. Pasteurellaceae, Haemophilus, Friedmanniella, two variants of Streptococcus, and Fusobacterium were over-represented in voided urine, while a greater abundance of Burkholderia-Caballeronia-Paraburkholderia characterized cystocentesis samples. Analyses were performed at five thresholds for minimum sequence depth and using three data normalization strategies to validate results; patterns of alpha and beta diversity remained consistent regardless of minimum read count requirements or normalization method. CONCLUSION Microbial composition differs in canine urine samples collected via cystocentesis as compared to those collected via midstream voiding. Future researchers should select a single urine collection method based on the biological question of interest when designing canine urinary microbiota studies. Additionally, the authors suggest caution when interpreting results across studies that did not utilize identical urine collection methods.
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Affiliation(s)
- Emily L. Coffey
- University of Minnesota, 1352 Boyd Avenue C339 Veterinary Medical Center, 55108 Saint Paul, MN USA
| | - Andres M. Gomez
- University of Minnesota, 1352 Boyd Avenue C339 Veterinary Medical Center, 55108 Saint Paul, MN USA
| | - Aaron C. Ericsson
- University of Missouri, 4011 Discovery Drive S123B, 65201 Columbia, MO USA
| | - Erin N. Burton
- University of Minnesota, 1352 Boyd Avenue C339 Veterinary Medical Center, 55108 Saint Paul, MN USA
| | - Jennifer L. Granick
- University of Minnesota, 1352 Boyd Avenue C339 Veterinary Medical Center, 55108 Saint Paul, MN USA
| | - Jody P. Lulich
- University of Minnesota, 1352 Boyd Avenue C339 Veterinary Medical Center, 55108 Saint Paul, MN USA
| | - Eva Furrow
- University of Minnesota, 1352 Boyd Avenue C339 Veterinary Medical Center, 55108 Saint Paul, MN USA
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