Publications of Carlota Cesarini Latorre
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See detailProceedings of the 8th FARAH-Day
Bayrou, Calixte ULiege; Cesarini Latorre, Carlota ULiege; Delguste, Catherine ULiege et al

Book published by Presses de la Faculté de Médecine Vétérinaire de l'ULiège (2021)

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See detailComparison of Fecal Microbiota of Horses Suffering from Atypical Myopathy and Healthy Co-Grazers
Wimmer-Scherr, Christina ULiege; Taminiau, Bernard ULiege; Renaud, Benoît ULiege et al

in Animals MPDI (2021), 11(506),

Equine atypical myopathy (AM) is caused by hypoglycin A (HGA) and methylenecyclopropylglycine (MCPG) intoxication resulting from the ingestion of seeds or seedlings of some Acer tree species ... [more ▼]

Equine atypical myopathy (AM) is caused by hypoglycin A (HGA) and methylenecyclopropylglycine (MCPG) intoxication resulting from the ingestion of seeds or seedlings of some Acer tree species. Interestingly, not all horses pasturing in the same toxic environment develop signs of the disease. In other species, it has been shown that the intestinal microbiota has an impact on digestion, metabolism, immune stimulation and protection from disease. The objective of this study was to characterize and compare fecal microbiota of horses suffering from AM and healthy co-grazers. Furthermore, potential differences in fecal microbiota regarding the outcome of diseased animals were assessed. This prospective observational study included 59 horses with AM (29 survivors and 30 nonsurvivors) referred to three Belgian equine hospitals and 26 clinically healthy co-grazers simultaneously sharing contaminated pastures during spring and autumn outbreak periods. Fresh fecal samples (rectal or within 30min of defecation) were obtained from all horses and bacterial taxonomy profiling obtained by 16S amplicon sequencing was used to identify differentially distributed bacterial taxa between AM-affected horses and healthy co-grazers. Fecal microbial diversity and evenness were significantly (p < 0.001) higher in AM-affected horses as compared with their non-affected co-grazers. The relative abundance of families Ruminococcaceae, Christensenellaceae and Akkermansiaceae were higher (p ≤ 0.001) whereas those of the Lachnospiraceae (p = 0.0053), Bacteroidales (p < 0.0001) and Clostridiales (p = 0.0402) were lower in horses with AM, especially in those with a poor prognosis. While significant shifts were observed, it is still unclear whether they result from the disease or might be involved in the onset of disease pathogenesis. [less ▲]

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See detailEffect of oral administration of omeprazole on the microbiota of the gastric glandular mucosa and feces of healthy horses
Cerri, Simona; Taminiau, Bernard ULiege; Haché-Carré de Lusancay, Alexandra et al

in Journal of Veterinary Internal Medicine (2020), 34

Background Proton pump inhibitors, such as omeprazole, are used extensively in both human and veterinary patients for treatment and prevention of gastric ulcer syndrome. In human and companion animal ... [more ▼]

Background Proton pump inhibitors, such as omeprazole, are used extensively in both human and veterinary patients for treatment and prevention of gastric ulcer syndrome. In human and companion animal medicine, omeprazole administration has been associated to shifts in gastric and fecal microbiota and increased incidence of Clostridioides difficile enterocolitis, especially in prolonged treatments. Hypothesis/Objectives The purpose of this study was to assess the effect of omeprazole on gastric glandular and fecal microbiota in healthy adult horses. Animals Eight healthy research horses stabled on straw and fed 100% haylage. Methods Prospective controlled study. Transendoscopic gastric glandular biopsies and gastric fluid as well as fresh fecal samples were obtained from each horse at a 7-day interval without treatment to serve as controls. Samples were taken on the same horses before and after a 7-day treatment with omeprazole (4mg/kg PO q24h). Fluid pH was immediately assessed and the rest of samples were kept frozen at -20°C until analysis. Bacterial taxonomy profiling was obtained by V1V3 16S amplicon sequencing from feces and gastric glandular biopsies. Analysis of alpha, beta diversity and comparison between time points were performed with MOTHUR and results were considered significant when p<0.05. Results Significant structural diversity in the microbiota was found in the glandular gastric samples after 7 days of omeprazole administration. No significant differences were found in composition and diversity of fecal microbiota. Conclusions and clinical importance A short course of oral omeprazole does not modify fecal microbiota in healthy horses but modifies the structure of gastric glandular microbiota [less ▲]

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See detailProceedings of the 7th FARAH-Day
Bayrou, Calixte ULiege; Cesarini Latorre, Carlota ULiege; Delguste, Catherine ULiege et al

Book published by Presses de la Faculté de Médecine vétérinaire de l'Université de Liège (2020)

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See detailComparison of faecal microbiota of horses suffering from atypical myopathy and healthy co-grazers
Cerri, Simona ULiege; Taminiau, Bernard ULiege; Votion, Dominique ULiege et al

Poster (2017, November 02)

Objectives: To characterize faecal microbiota of horses with atypical myopathy (AM) compared with healthy co-grazers (HcG). Methods: Fresh faecal samples were obtained from 6 horses (1 stallion, 3 ... [more ▼]

Objectives: To characterize faecal microbiota of horses with atypical myopathy (AM) compared with healthy co-grazers (HcG). Methods: Fresh faecal samples were obtained from 6 horses (1 stallion, 3 geldings and 2 females; mean age of 11.810 years) with confirmed AM and 6 HcG (4 geldings and 2 females; mean age of 13.68 years) during autumn-2016 and spring-2017 AM outbreaks in Belgium. Bacterial taxonomy profiling obtained by 16S amplicon sequencing of faeces was used to identify differentially distributed bacterial taxa between AM and HcG. Results were statistically compared using Welch's t-test with STAMP software. Results: A total of 90,407 sequences were analysed and clustered to 8,066 operational taxonomic units. Bacterial populations were distributed between 17 phylas, although 20% of sequences could not be attributed to an existing phylum. Horses with AM harboured a significantly higher relative abundance of Ruminococcaeae family with a significantly lower Lachnospiraceae when compared to HcG. Discussion: AM is caused by hypoglycin A intoxication, but only a part of horses pasturing in the same toxic environment develops the pathology, suggesting that there may be protective factors at the horse level. The results of this study show significant differences in faecal microbiota between AM cases and HcG, which could suggest that microbiota could play a role in the development or prevention of clinical disease. Conclusions: Results demonstrate that microbiota of AM affected horses is significantly different compared to HcG. Significance: Microbiome could influence the development of AM, but this role deserves further investigation. [less ▲]

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See detailCase report: Ovarian fibroma in a mare – Hormonal considerations
Ponthier, Jérôme ULiege; Salciccia, Alexandra ULiege; Parrilla Hernandez, Sonia ULiege et al

in Reproduction in Domestic Animals (2016, October 27), 51(supplement 2), 132

This report shows that, as in humans, AMH as well as steroids productions are low in case of ovarian fibroma, thus preserving normal cyclicity.

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See detailAssociation Between Necropsy Evidence of Disseminated Intravascular Coagulation and Hemostatic Variables Before Death in Horses With Colic.
Cesarini Latorre, Carlota ULiege; Cotovio, M.; Rios, J. et al

in Journal of Veterinary Internal Medicine (2016), 30(1), 269-75

BACKGROUND: Disseminated intravascular coagulation (DIC) is frequent in horses with severe gastrointestinal disorders. Postmortem studies have found fibrin microthrombi in tissues of these horses, but ... [more ▼]

BACKGROUND: Disseminated intravascular coagulation (DIC) is frequent in horses with severe gastrointestinal disorders. Postmortem studies have found fibrin microthrombi in tissues of these horses, but studies relating these histopathological findings with antemortem hemostatic data are lacking. HYPOTHESIS: Antemortem classification of coagulopathy is related to the presence and severity of fibrin deposits observed postmortem in horses with severe gastrointestinal disorders. ANIMALS: Antemortem hemostatic profile data and postmortem tissue samples (kidney, lung, liver) from 48 horses with colic. METHODS: Tissue samples were stained with phosphotungstic acid hematoxylin and immunohistochemical methods for histological examination. A fibrin score (grades 0-4) was assigned for each technique, tissue and horse, as well as the presence or absence of DIC at postmortem examination. D-dimer concentration, prothrombin time (PT), activated partial thromboplastin time (aPTT), and antithrombin (AT) activity, as well as the clinicopathological evidence of coagulopathy, were determined from plasma samples collected 0-24 hours before death or euthanasia. Histologic and clinicopathologic data from the same horses were compared retrospectively. RESULTS: No association was found between antemortem classification of coagulopathy and postmortem diagnosis of DIC based on tissue fibrin deposition. None of the hemostatic parameters was significantly different between horses with or without postmortem diagnosis of DIC. There was no association between horses with fibrin in tissues or different cut-offs for D-dimer concentration and postmortem evidence of DIC. CONCLUSIONS AND CLINICAL IMPORTANCE: Abnormalities of the routine clotting profile, including D-dimer concentration, were not useful in predicting histologic evidence of DIC at necropsy in horses with severe gastrointestinal disorders. [less ▲]

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See detailMetabolic and endocrine profiles in sick neonatal foals are related to survival.
Armengou, L.; Jose-Cunilleras, E.; Rios, J. et al

in Journal of Veterinary Internal Medicine (2013), 27(3), 567-75

BACKGROUND: Sick neonatal foals suffer from a variety of endocrine and metabolic derangements that may be related to outcome. There are several hepatic and lipid metabolism blood markers that have never ... [more ▼]

BACKGROUND: Sick neonatal foals suffer from a variety of endocrine and metabolic derangements that may be related to outcome. There are several hepatic and lipid metabolism blood markers that have never been assessed in neonatal foals. OBJECTIVES: Assess panel of endocrine and metabolic variables in group of sick and healthy neonatal foals in order to describe their relationship with diagnosis and survival. ANIMALS: All neonatal foals referred to Unitat Equina-Fundacio Hospital Clinic Veterinari during 3 consecutive foaling seasons and a group of healthy foals. METHODS: Observational prospective study. Blood samples were obtained on admission and, when possible, after 24-48 h of hospitalization and immediately before discharge or death. Measured variables were triglycerides, nonsterified fatty acids, glucose, creatinine, urea, gamma-glutamyltransferase, glutamate dehydrogenase (GLDH), insulin, cortisol, bile acids, and adrenocorticotropic hormone (ACTH). ACTH/cortisol and glucose/insulin ratios were calculated. RESULTS: Urea, creatinine, and cortisol had median concentrations in septic and nonseptic foals 2- to 8-fold higher than in the control group (P < .001). Median ACTH concentration in the septic group was approximately 4 times higher than in nonseptic and control foals (P < .001). ACTH/cortisol ratio was significantly lower in sick foals compared to control foals (P < .001). A score was designed including creatinine, GLDH, and cortisol. When >/= 2 of these variables were altered (P < .001), the foal had 32 times more risk of dying (OR, 31.7; 95% CI, 7.7-130.3). CONCLUSIONS AND CLINICAL IMPORTANCE: Plasma creatinine, GLDH, and cortisol should be determined in sick newborn foals on admission because of their association with survival. [less ▲]

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See detailPalatal sclerotherapy for the treatment of intermittent dorsal displacement of the soft palate in 51 standardbred racehorses.
Jean, Daniel; Picandet, Valerie; Celeste, Christophe et al

in Canadian Veterinary Journal (2011), 52(11), 1203-8

This retrospective study evaluated the efficacy and side effects of palatal sclerotherapy in standardbred racehorses suspected to have intermittent dorsal displacement of the soft palate (IDDSP). Fifty ... [more ▼]

This retrospective study evaluated the efficacy and side effects of palatal sclerotherapy in standardbred racehorses suspected to have intermittent dorsal displacement of the soft palate (IDDSP). Fifty-one horses were treated with multiple endoscopically guided injections of 3% sodium tetradecyl sulfate in the soft palate. Two groups were identified: those that had respiratory noises during exercise (n = 27) and those that did not (n = 24). Treatment was well-tolerated. Furthermore, horses significantly reduced their racing times for the last 400 m compared with their times before treatment and even when their times were compared to the mean times for horses in the same race. In conclusion, palatal sclerotherapy appears to be a suitable alternative therapeutic option for horses suspected to have IDDSP. [less ▲]

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See detailCostochondral junction osteomyelitis in 3 septic foals.
Cesarini Latorre, Carlota ULiege; Macieira, Susana; Girard, Christiane et al

in Canadian Veterinary Journal (2011), 52(7), 772-7

The costochondral junction constitutes a potential site of infection in septic foals and it could be favored by thoracic trauma. Standard radiographs and ultrasonography are useful tools for diagnosis of ... [more ▼]

The costochondral junction constitutes a potential site of infection in septic foals and it could be favored by thoracic trauma. Standard radiographs and ultrasonography are useful tools for diagnosis of this condition and ultrasound-guided needle aspiration could permit the definitive confirmation of infection. [less ▲]

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See detailBronchoalveolar lavage fluid cytology and cytokine messenger ribonucleic Acid expression of racehorses with exercise intolerance and lower airway inflammation.
Lavoie, J. P.; Cesarini Latorre, Carlota ULiege; Lavoie-Lamoureux, A. et al

in Journal of Veterinary Internal Medicine (2011), 25(2), 322-9

BACKGROUND: There is limited information relating bronchoalveolar lavage (BAL) cytology and cytokine messenger ribonucleic acid (mRNA) expression in racehorses with inflammatory airway disease (IAD ... [more ▼]

BACKGROUND: There is limited information relating bronchoalveolar lavage (BAL) cytology and cytokine messenger ribonucleic acid (mRNA) expression in racehorses with inflammatory airway disease (IAD). HYPOTHESIS AND OBJECTIVE: We hypothesize that cytokine expression in BAL cells would correlate with cytology. Thus, we evaluated the mRNA expression of selected cytokines in BAL cells in racehorses with exercise intolerance and lower airway inflammation. ANIMALS: Thirty-one client-owned Standardbred racehorses with exercise intolerance. METHODS: Prospective, observational study. Cells were obtained by BAL, and mRNA expression of interleukin (IL)-1beta, IL-4, IL-8, tumor necrosis factor (TNF)-alpha, and interferon (IFN)-gamma was determined by reverse transcription quantitative polymerase chain reaction (RT-qPCR). RESULTS: Nine horses had normal BAL cell differential cytology (Controls), while 22 horses had evidence of IAD based on BAL fluid cytology. Relative expressions of TNF-alpha/glyceraldehyde 3-phosphate dehydrogenase (GAPDH; 0.0092 +/- 0.010 versus 0.0045 +/- 0.005, P= .034), IL-4/GAPDH (0.001 +/- 0.002 versus 0.0003 +/- 0.0003, P= .029), and IFN-gamma/GAPDH (0.0027 +/- 0.003 versus 0.0009 +/- 0.001, P= .028) were greater in horses with IAD compared with controls. Furthermore, IL-4/GAPDH (0.001 +/- 0.002 versus 0.0002 +/- 0.0003, P < .0001) and IFN-gamma/GAPDH (0.003 +/- 0.003 versus 0.001 +/- 0.001, P= .002) mRNA expression was increased in horses with increased metachromatic cell counts compared with horses with normal metachromatic cell counts. Only the mRNA expression of IL-1beta/GAPDH (1.1 +/- 0.7 versus 0.3 +/- 0.3, P= .045) was increased with airway neutrophilia. CONCLUSIONS AND CLINICAL IMPORTANCE: Differences in gene expression were associated with the presence of IAD and with specific cell types present in airway secretions of Standardbred racehorses with poor performance. These findings suggest that different pathophysiological pathways are implicated in IAD. [less ▲]

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See detailUveal inflammation in septic newborn foals.
Leiva, M.; Pena, T.; Armengou, L. et al

in Journal of Veterinary Internal Medicine (2010), 24(2), 391-7

BACKGROUND: Septicemia in humans is described as a leading cause of uveitis, which eventually can induce blindness. HYPOTHESIS/OBJECTIVES: Uveal inflammatory findings could be related to sepsis severity ... [more ▼]

BACKGROUND: Septicemia in humans is described as a leading cause of uveitis, which eventually can induce blindness. HYPOTHESIS/OBJECTIVES: Uveal inflammatory findings could be related to sepsis severity in newborn foals and might be used as an indirect indicator for survival. ANIMALS: Seventy-four septic foals, 54 nonseptic foals, and 42 healthy foals. METHODS: Prospective observational clinical study. A detailed blinded, ophthalmic examination was performed by boarded ophthalmologists on all admitted newborn foals. Foals were grouped as septic (when blood culture resulted positive or the sepsis score was > or =14), nonseptic, and controls. Based on blood culture results, the septic group was subdivided into bacteremic and nonbacteremic foals. RESULTS: Blood culture was performed in 62/74 septic foals, from which 35 (56%) were bacteremic and 27 (44%) were non-bacteremic. Anterior uveitis was diagnosed in a significantly (P < .005) higher number of septic/bacteremic foals (14/35, 40%) than in septic/nonbacteremic foals (5/27, 19%), nonseptic foals (4/54, 7%), and control foals (0%). Anterior chamber fibrin was only observed in 4/14 (29%) septic/bacteremic foals with anterior uveitis. Anterior uveitis was also associated with posterior uveitis in 6/35 (19%) septic/bacteremic foals. The diagnosis of uveitis was related to nonsurvival (P = .001, odds ratio = 6.2, 95% confidence interval = 2.1-18.2). CONCLUSIONS AND CLINICAL IMPORTANCE: Anterior uveitis is highly prevalent in septic newborn foals, especially in those with a positive blood culture, and it should be considered as a survival prognostic factor. [less ▲]

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See detailCranioencephalic malformation with atlanto-occipital luxation in an Andalusian neonate foal.
Viu, J.; Armengou, L.; Jose-Cunilleras, E. et al

in Journal of Veterinary Internal Medicine (2010), 24(3), 639-42

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See detailAssociation of admission plasma D-dimer concentration with diagnosis and outcome in horses with colic.
Cesarini Latorre, Carlota ULiege; Monreal, L.; Armengou, L. et al

in Journal of Veterinary Internal Medicine (2010), 24(6), 1490-7

BACKGROUND: Coagulopathies detected in horses with gastrointestinal problems seem to be associated with poor outcome. Plasma D-Dimer concentration is a sensitive test for assessing coagulopathies ... [more ▼]

BACKGROUND: Coagulopathies detected in horses with gastrointestinal problems seem to be associated with poor outcome. Plasma D-Dimer concentration is a sensitive test for assessing coagulopathies. HYPOTHESIS: Plasma D-Dimer concentration tested on admission is related to diagnosis and outcome in horses with colic. ANIMALS: Four hundred and ninety three horses referred for evaluation of abdominal pain. METHODS: Prospective observational clinical study. Horses were grouped according to diagnosis (medical and surgical intestinal obstructions, ischemic disorders with and without intestinal resection, enteritis, peritonitis), outcome (survivors, nonsurvivors), and number of coagulopathies (normal profile, 1 or 2 coagulopathies, subclinical disseminated intravascular coagulation [DIC]). Blood samples were collected on admission and plasma D-Dimer concentration, clotting times (PT and aPTT), and antithrombin activity were determined. Positive likelihood ratios (LR+) were calculated for evaluation of D-Dimer cut-off values, which were later tested in a logistic regression model. RESULTS: Horses with enteritis or peritonitis had significantly (P<.001) higher plasma D-Dimer concentrations and more severe coagulopathies on admission than horses with other diagnoses. Nonsurvivors also had significantly (P<.001) higher plasma D-Dimer concentrations at presentation than did survivors, and those horses with subclinical DIC on presentation had an odds ratio (OR) 8.6 (95% confidence interval [CI], 3.3-22.5, P<.001) for nonsurvival. Finally, D-Dimer concentrations>4,000 ng/mL had a LR+ of 5.9 and an OR 8.8 (95% CI, 4.5-17.1, P<.001) for nonsurvival. CONCLUSION AND CLINICAL IMPORTANCE: Plasma D-Dimer concentration measured on admission can be used to facilitate diagnosis and outcome prediction in horses with colic. A potential cut-off value for nonsurvival was found at approximately 4,000 ng/mL. [less ▲]

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See detailLow-molecular-weight heparin dosage in newborn foals.
Armengou, L.; Monreal, L.; Delgado, M. A. et al

in Journal of Veterinary Internal Medicine (2010), 24(5), 1190-5

BACKGROUND: Heparin is used in humans as prophylaxis of hypercoagulable states and disseminated intravascular coagulation (DIC). However, babies need a higher heparin dose than do adults. Septic neonate ... [more ▼]

BACKGROUND: Heparin is used in humans as prophylaxis of hypercoagulable states and disseminated intravascular coagulation (DIC). However, babies need a higher heparin dose than do adults. Septic neonate foals are at high risk of hypercoagulable state and DIC, and there is limited objective information about heparin dose for equine neonates. OBJECTIVE: To assess whether neonate foals require higher dosages of low-molecular-weight heparin (LMWH) than adults. ANIMALS: Eighteen healthy and 11 septic neonate foals. METHODS: Experimental and clinical studies. Firstly, healthy foals were randomly distributed in 2 groups, 1 receiving 50 IU/kg SC of dalteparin and the 2nd group receiving 100 IU/kg SC of dalteparin, once daily for 3 days. Blood samples were collected before and 3, 6, 27, and 51 hours after the 1st LMWH administration. Plasma antifactor-Xa activity was measured, together with hemostatic and hematologic parameters used to assess the risk of bleeding. Subsequently, septic foals were treated blindly either with placebo (saline) or 100 IU/kg of dalteparin for 3 days. Plasma antifactor-Xa activity and other hemostatic parameters were determined before and after treatment. RESULTS: Plasma antifactor-Xa activity in healthy foals was below prophylactic activity when using the adult dosage (50 IU/kg), whereas prophylactic activities were achieved when using the double dosage (100 IU/kg). No hemorrhagic events and erythrocyte-related complications were observed with either dosage. In the clinical study, only 4/6 septic foals had plasma antifactor-Xa activity adequate for prophylaxis. CONCLUSIONS AND CLINICAL IMPORTANCE: Equine neonates require higher dosages of LMWH compared with adults to reach prophylactic heparinemia. [less ▲]

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