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Hope A, Shiel RE, Lopez Bailen E, Mooney CT. Response to "Further studies are needed to confirm that a cut-off value for DGGR lipase that is significantly below the upper limit of the reference interval will achieve acceptable specificity". J Small Anim Pract 2021; 62:1134. [PMID: 34623635 DOI: 10.1111/jsap.13436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 09/19/2021] [Indexed: 11/28/2022]
Affiliation(s)
- A Hope
- Small Animal Clinical Studies, School of Veterinary Medicine, University College Dublin, Dublin 4, Ireland
| | - R E Shiel
- Small Animal Clinical Studies, School of Veterinary Medicine, University College Dublin, Dublin 4, Ireland
| | - E Lopez Bailen
- Small Animal Clinical Studies, School of Veterinary Medicine, University College Dublin, Dublin 4, Ireland
| | - C T Mooney
- Small Animal Clinical Studies, School of Veterinary Medicine, University College Dublin, Dublin 4, Ireland
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Hope A, Bailen EL, Shiel RE, Mooney CT. Retrospective study evaluation of DGGR lipase for diagnosis, agreement with pancreatic lipase and prognosis in dogs with suspected acute pancreatitis. J Small Anim Pract 2021; 62:1092-1100. [PMID: 34233038 DOI: 10.1111/jsap.13379] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 04/30/2021] [Accepted: 05/12/2021] [Indexed: 12/16/2022]
Abstract
OBJECTIVES Activity of 1,2-o-dilauryl-rac-glycero-3-glutaric acid-(6'-methylresorufin) ester (DGGR) lipase is considered to be more pancreas specific than traditional lipase assays. The aim of this study was to evaluate the diagnostic performance of DGGR lipase activity for suspected acute pancreatitis in dogs and to assess its prognostic usefulness. METHODS Retrospective study of case records for suspected acute pancreatitis based on clinician-stated diagnosis, point-of-care and quantitative canine pancreas-specific lipase (cPL) results and consistent ultrasonographic features. Diagnostic performance of DGGR lipase was assessed by receiver-operating characteristic curve analysis, agreement by Cohen's kappa (κ) and prognostic value by multiple regression analysis. RESULTS Median DGGR lipase activity was significantly (P < 0.001) higher in dogs with suspected acute pancreatitis [93.7 (range, 11.0-2853.0) U/L (n = 158)] compared to those with no evidence of pancreatitis [range, 20.9 (6.7-89.0) U/L (n = 356)]. A DGGR lipase activity >42.15 U/L had the best combined diagnostic sensitivity (81.0%) and specificity (92.1%). Previously established cut-offs (>130 and >80 U/L) had sensitivities of 40.5 and 43.0%, and specificities of 100 and 99.7%, respectively. There was near perfect (κ = 0.821) and substantial (κ = 0.751) agreement between DGGR lipase activity >42.15 U/L and quantitative cPL concentrations ≥200 and ≥400 μg/L, respectively. DGGR lipase activity but not quantitative cPL concentration was statistically (P = 0.043, odds ratio = 0.999) predictive of discharge but clinical utility is questionable. CLINICAL SIGNIFICANCE Using DGGR lipase at the lower cut-off could provide an additional test for supporting a diagnosis of acute pancreatitis in dogs particularly if cPL results are not available. Larger studies are required to more fully assess its value in prognostication.
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Affiliation(s)
- A Hope
- Small Animal Clinical Studies, School of Veterinary Medicine, University College Dublin, Dublin 4, Ireland
| | - E L Bailen
- Small Animal Clinical Studies, School of Veterinary Medicine, University College Dublin, Dublin 4, Ireland
| | - R E Shiel
- Small Animal Clinical Studies, School of Veterinary Medicine, University College Dublin, Dublin 4, Ireland
| | - C T Mooney
- Small Animal Clinical Studies, School of Veterinary Medicine, University College Dublin, Dublin 4, Ireland
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Shiel RE, Nolan CM, Nally JE, Refsal KR, Mooney CT. Qualitative and semiquantitative assessment of thyroid hormone binding proteins in greyhounds and other dog breeds. Domest Anim Endocrinol 2021; 76:106623. [PMID: 33774426 DOI: 10.1016/j.domaniend.2021.106623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 02/17/2021] [Indexed: 10/22/2022]
Abstract
Total thyroxine (T4) concentrations are lower in healthy greyhounds compared to most other non-sighthound breeds. In humans, variations in the structure or concentration of the major thyroid hormone binding proteins are responsible for most reported differences between total T4 concentrations in healthy individuals from different ethnic groups or other subpopulations. The aim of this study was to determine if such variations are also responsible for the lower total T4 concentrations in greyhounds. The predicted protein sequences of thyroxine-binding globulin (TBG), transthyretin and albumin were determined in liver tissue from a euthyroid greyhound with decreased T4 concentration and a Jack Russell terrier using reverse-transcriptase PCR. Sequences were compared to each other and online reference sequences. Serum proteins from 21 greyhounds and 21 non-sighthound dogs were separated by denaturing electrophoresis and immunoblots probed with polyclonal antibodies to human TBG and transthyretin. Reactive bands were quantified by densitrometry, expressed relative to the mean of reference samples included in each gel. Serum albumin concentrations were measured using a commercially-available assay. Several SNPs were identified but none was thought likely to explain the lower total T4 concentrations in greyhounds. There was no significant difference between the quantity of any of the binding proteins in serum from greyhounds and non-sighthound dogs. However, total T4 and transthyretin concentrations were highly correlated in the greyhound group (r = 0.73, P = 0.0002). Variation in the sequence of thyroid hormone binding proteins is not responsible for low greyhound total T4 concentrations. Further evaluation of the role of transthyretin is warranted.
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Affiliation(s)
- R E Shiel
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin, Ireland.
| | - C M Nolan
- School of Biology and Environmental Science, University College Dublin, Belfield, Dublin, Ireland
| | - J E Nally
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin, Ireland
| | - K R Refsal
- Michigan State University Veterinary Diagnostic Laboratory, Lansing, MI, USA
| | - C T Mooney
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin, Ireland
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Guzmán Ramos PJ, Shiel RE, Fernández Pérez C, Ríos Boeta AM, Perlado Chamizo MR, Ballester Aguado JI, Ruiz Duro N, Ortiz-Díez G. Antimicrobial resistance increased over an 8-year period in Enterobacteriaceae cultured from canine urine samples. J Small Anim Pract 2021; 62:279-285. [PMID: 33460135 DOI: 10.1111/jsap.13291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 10/06/2020] [Accepted: 11/26/2020] [Indexed: 11/26/2022]
Abstract
OBJECTIVES The aims of the present study were to describe the prevalence of positive urinary bacterial culture in dogs, to identify the most commonly isolated microorganisms and to analyse changes in antimicrobial susceptibility patterns over time. MATERIAL AND METHODS A retrospective case series was performed using culture and susceptibility results from canine urine samples collected between January 2010 and December 2017. The presence or absence of infection, identity of the bacterium with heaviest growth, and susceptibility profile were recorded for each sample. Trends in the frequency of positive culture and antimicrobial resistance were assessed by Poisson regression modelling. Prevalence rate ratio and 95% confidence interval were reported for resistance to each antimicrobial. RESULTS A positive urine culture was documented in 771 (22.5%) of 3420 samples. Escherichia coli was the most commonly isolated microorganism. There was no significant increase in the frequency of positive bacterial culture over the study period (prevalence rate ratio 0.98; 95% confidence interval: 0.92 to 1.0). Overall, there was an increase in antimicrobial resistance within Enterobacteriaceae from 5.2 to 35.6%. The prevalence of multidrug-resistant bacteria varied from year to year throughout the study period. However, the Poisson regression model identified a significant increase in the frequency of multidrug-resistant Enterobacteriaceae over this period, averaging approximately 22% per year (prevalence rate ratio 1.22, 95% confidence interval: 1.06 to 1.42). CLINICAL SIGNIFICANCE The significant increase in antimicrobial resistance observed in this study is concerning and may have implications for veterinary and public health. Appropriate measures, such as antibiotic stewardship programmes, should be implemented to address increasing antimicrobial resistance.
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Affiliation(s)
- P J Guzmán Ramos
- School of Veterinary Medicine, College of Health and Agricultural Sciences, University College Dublin, Dublin, Belfield, Dublin 4, Ireland
| | - R E Shiel
- School of Veterinary Medicine, College of Health and Agricultural Sciences, University College Dublin, Dublin, Belfield, Dublin 4, Ireland
| | - C Fernández Pérez
- Servicio de Medicina Preventiva, Instituto de Investigación Sanitaria (IsDSSS), Hospital Clínico San CarlosCalle del Prof. Martín Lagos, Madrid, 28040, Spain
| | - A M Ríos Boeta
- Hospital Veterinario PucholCalle Sauceda 8, Madrid, 28050, Spain
| | - M R Perlado Chamizo
- Hospital Clínico Veterinario, Universidad Alfonso X el SabioAvenida de la Universidad, 1, Madrid, 28691, Spain
| | - J I Ballester Aguado
- Hospital Clínico Veterinario, Universidad Alfonso X el SabioAvenida de la Universidad, 1, Madrid, 28691, Spain
| | - N Ruiz Duro
- Hospital Clínico Veterinario, Universidad Alfonso X el SabioAvenida de la Universidad, 1, Madrid, 28691, Spain
| | - G Ortiz-Díez
- Hospital Clínico Veterinario, Universidad Alfonso X el SabioAvenida de la Universidad, 1, Madrid, 28691, Spain
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Mooney CT, Shiel RE, Fawcett K, Matthews E, Gunn E. A comparison of canine whole and intact parathyroid hormone concentrations as measured by different assays. J Small Anim Pract 2019; 60:507-513. [PMID: 31017670 DOI: 10.1111/jsap.13006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 01/07/2019] [Accepted: 02/14/2019] [Indexed: 01/25/2023]
Abstract
OBJECTIVES To compare an intact immunoradiometric parathyroid hormone assay with (1) a non-isotopic technique; and, (2) a whole parathyroid hormone immunoradiometric assay. MATERIALS AND METHODS Intact parathyroid hormone concentrations were measured using immunoradiometric (Scantibodies) and chemiluminescent (Immulite 2000) assays. Whole parathyroid hormone concentration was measured using an immunoradiometric assay (Scantibodies). RESULTS A total of 48 and 47 samples, respectively, were used to compare immunoradiometric and chemiluminescent intact parathyroid concentrations and intact and whole parathyroid hormone concentrations by immunoradiometric assays. Using chemiluminescence, 39 (81.3%) samples had intact parathyroid hormone concentrations at or below the reported limit of detection of the assay (0.3 pmol/L). Intact [6.3 (2.0 to 95.5) pmol/L] and whole [3.3 (0.8 to 125.2) pmol/L] immunoradiometric parathyroid hormone concentrations exhibited excellent correlation. CLINICAL SIGNIFICANCE Not all parathyroid hormone assays perform similarly. The chemiluminescent assay in this study cannot be recommended for use in dogs. The immunoradiometric intact parathyroid hormone assay proved to be a more reliable method. Given the correlation between intact and whole parathyroid hormone concentrations, it remains unclear which one is superior for routine clinical decision-making.
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Affiliation(s)
- C T Mooney
- Small Animal Clinical Studies, School of Veterinary Medicine, University College Dublin, Dublin, D04 W6F6, Ireland
| | - R E Shiel
- Small Animal Clinical Studies, School of Veterinary Medicine, University College Dublin, Dublin, D04 W6F6, Ireland
| | - K Fawcett
- Small Animal Clinical Studies, School of Veterinary Medicine, University College Dublin, Dublin, D04 W6F6, Ireland
| | - E Matthews
- National Institute for Bioprocessing Research and Training, School of Veterinary Medicine, University College Dublin, Dublin, Ireland
| | - E Gunn
- Small Animal Clinical Studies, School of Veterinary Medicine, University College Dublin, Dublin, D04 W6F6, Ireland
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Nolan CM, Shiel RE, Buchan JG, O'Sullivan FM, Callanan JJ. Canine MAS1: monoallelic expression is suggestive of an imprinted gene. Anim Genet 2018; 49:438-446. [PMID: 30062832 DOI: 10.1111/age.12705] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/13/2018] [Indexed: 12/15/2022]
Abstract
Imprinted genes are epigenetically modified in a parent-of-origin dependent manner and as a consequence are differentially expressed, with one allele typically expressed while the other is repressed. In canine, the insulin like growth factor 2 receptor gene (IGF2R) is imprinted with predominant expression of the maternally inherited allele. Because imprinted genes usually occur in clusters, we examined the allelic expression pattern of the gene encoding the canine Mas receptor (MAS1), which is located upstream of IGF2R on canine chromosome 1 and is highly conserved in mammals. In this report we describe monoallelic expression of canine MAS1 in the neonatal umbilical cord of several individuals and we identify the expressed allele as maternally inherited. These data suggest that canine MAS1 is an imprinted gene.
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Affiliation(s)
- C M Nolan
- UCD School of Biology and Environmental Science, Science Centre West, Belfield, Dublin 4, Ireland
| | - R E Shiel
- UCD School of Veterinary Medicine, Belfield, Dublin 4, Ireland
| | - J G Buchan
- UCD School of Biology and Environmental Science, Science Centre West, Belfield, Dublin 4, Ireland
| | - F M O'Sullivan
- UCD School of Biology and Environmental Science, Science Centre West, Belfield, Dublin 4, Ireland
| | - J J Callanan
- UCD School of Veterinary Medicine, Belfield, Dublin 4, Ireland
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Gunn E, Shiel RE, Mooney CT. Hydrocortisone in the management of acute hypoadrenocorticism in dogs: a retrospective series of 30 cases. J Small Anim Pract 2016; 57:227-33. [PMID: 27101159 DOI: 10.1111/jsap.12473] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Revised: 01/04/2016] [Accepted: 01/09/2016] [Indexed: 12/15/2022]
Abstract
OBJECTIVES The objectives of this study were to describe the efficacy, outcome and adverse effects of intravenous hydrocortisone and fluid therapy for the management of acute hypoadrenocorticism in dogs. METHODS A retrospective review of dogs with primary hypoadrenocorticism receiving intravenous hydrocortisone and fluid therapy was performed. RESULTS Thirty newly-diagnosed dogs were included. There was an excellent clinical response, with all dogs surviving to discharge within a median of 2 days. In 23 cases with complete data, the mean rate of change of sodium over 24 hours was 0·48 (±0·28) mmol/L/hour, while the mean rate of change of potassium was -0·12 (±0·06) mmol/L/hour. Circulating potassium concentration normalised in 68·4% and 100% of cases of by 12 and 24 hours, respectively. Additional treatment for hyperkalaemia was not found necessary. Plasma sodium concentration increased by >12 mmol/L/24 hours on 7 of 23 (30·4%) occasions. One dog exhibited associated temporary neurological signs. CLINICAL SIGNIFICANCE Intravenous hydrocortisone infusion and fluid therapy for the management of acute hypoadrenocorticism is associated with a rapid resolution of hyperkalaemia and is well tolerated with few adverse effects. Regular electrolyte monitoring is required to ensure that rapid increases in sodium concentration are avoided.
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Affiliation(s)
- E Gunn
- Small Animal Clinical Studies, School of Veterinary Medicine, University College Dublin, Belfield, Dublin, 4, Ireland
| | - R E Shiel
- Small Animal Clinical Studies, School of Veterinary Medicine, University College Dublin, Belfield, Dublin, 4, Ireland
| | - C T Mooney
- Small Animal Clinical Studies, School of Veterinary Medicine, University College Dublin, Belfield, Dublin, 4, Ireland
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Tong LJ, Bennett SL, Thompson DJ, Adsett SL, Shiel RE. Right-sided congestive heart failure in a dog because of a primary intracavitary myocardial lymphoma. Aust Vet J 2015; 93:67-71. [PMID: 25708789 DOI: 10.1111/avj.12289] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/26/2014] [Indexed: 11/29/2022]
Abstract
CASE REPORT A 9-year-old female intact Cocker Spaniel was presented with a history of acute-onset dyspnoea and abdominal distension of 3 days' duration. Ultrasonography revealed pleural, peritoneal and pericardial effusions. Abdominal fluid analysis was consistent with a modified transudate. Echocardiography revealed a large, hypoechoic space-occupying mass within the right atrium. The dog was euthanased and the postmortem examination showed a solid, 40 × 35 × 20 mm broad-based mass arising from the right atrial wall and occluding approximately 90% of the right atrial lumen. Histopathology revealed myocardial lymphoma. There were histologically similar, focal nodules in the lung parenchyma without involvement of other extracardiac sites. There was gross and histological evidence of hepatic congestion and marked distension of the caudal vena cava, consistent with secondary right-sided congestive heart failure. CONCLUSION This case highlights the need to consider lymphoma as a differential diagnosis for an intra-atrial mass and as a cause of congestive heart failure in the dog.
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Affiliation(s)
- L J Tong
- Murdoch University Veterinary Hospital, Murdoch, Western Australia, Australia
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Shiel RE, Kennedy LJ, Nolan CM, Mooney CT, Callanan JJ. Major histocompatibility complex class II alleles and haplotypes associated with non-suppurative meningoencephalitis in greyhounds. ACTA ACUST UNITED AC 2014; 84:271-6. [PMID: 24851745 DOI: 10.1111/tan.12365] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 03/27/2014] [Accepted: 04/01/2014] [Indexed: 12/31/2022]
Abstract
Non-suppurative meningoencephalitis is a breed-restricted canine neuroinflammatory disorder affecting young greyhounds in Ireland. A genetic risk factor is suspected because of the development of disease in multiple siblings and an inability to identify a causative infectious agent. The aim of this study was to examine potential associations between dog leucocyte antigen (DLA) class II haplotype and the presence of the disease. DLA three locus haplotypes were determined in 31 dogs with non-suppurative meningoencephalitis and in 115 healthy control dogs using sequence-based typing (SBT) methods. All dogs were unrelated at the parental level. Two haplotypes (DRB1*01802/DQA1*00101/DQB1*00802 and DRB1*01501/DQA1*00601/DQB1*02201) were significantly (P = 0.0099 and 0.037) associated with the presence of meningoencephalitis, with odds ratios (95% confidence interval) of 5.531 (1.168-26.19) and 3.736 (1.446-9.652), respectively. These results confirm that there is an association between DLA class II haplotype and greyhound meningoencephalitis, suggesting an immunogenetic risk factor for the development of the disease. Greyhound meningoencephalitis may be a suitable model for human neuroinflammatory diseases with an immunogenetic component.
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Affiliation(s)
- R E Shiel
- Section of Veterinary Clinical Studies, University College Dublin, Belfield, Dublin 4, Ireland
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Tamborini A, Papakonstantinou S, Brown A, Brennan S, Shiel RE, Mills JN, Mooney CT. Comparison of manual and laboratory PCV and total protein using EDTA and lithium heparin canine samples. J Small Anim Pract 2014; 55:258-64. [DOI: 10.1111/jsap.12198] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/09/2014] [Indexed: 11/27/2022]
Affiliation(s)
- A. Tamborini
- University College Dublin Veterinary Hospital, School of Veterinary Medicine; University College Dublin; Dublin Ireland
| | - S. Papakonstantinou
- University College Dublin Veterinary Hospital, School of Veterinary Medicine; University College Dublin; Dublin Ireland
| | - A. Brown
- Murdoch University Veterinary Hospital; Murdoch University; Murdoch WA Australia
| | - S. Brennan
- University College Dublin Veterinary Hospital, School of Veterinary Medicine; University College Dublin; Dublin Ireland
| | - R. E. Shiel
- Murdoch University Veterinary Hospital; Murdoch University; Murdoch WA Australia
| | - J. N. Mills
- Murdoch University Veterinary Hospital; Murdoch University; Murdoch WA Australia
| | - C. T. Mooney
- University College Dublin Veterinary Hospital, School of Veterinary Medicine; University College Dublin; Dublin Ireland
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Shiel RE, Pinilla M, McAllister H, Mooney CT. Assessment of the value of quantitative thyroid scintigraphy for determination of thyroid function in dogs. J Small Anim Pract 2012; 53:278-85. [DOI: 10.1111/j.1748-5827.2011.01205.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Shiel RE, Mooney CT, Brennan SF, Nolan CM, Callanan JJ. Clinical and clinicopathological features of non-suppurative meningoencephalitis in young greyhounds in Ireland. Vet Rec 2010; 167:333-7. [PMID: 20802187 DOI: 10.1136/vr.c4248] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The clinical and clinicopathological features of non-suppurative meningoencephalitis in 30 greyhounds were reviewed. The dogs were from 21 separate litters, comprised both sexes (16 males and 14 females) and ranged in age from five to 18 months. In 14 (66.7 per cent) litters, more than one case was suspected or confirmed, and the number of siblings affected within individual litters ranged from one to seven. Clinical signs were progressive and varied from five days to 12 months in duration; 12 dogs had signs of two weeks' duration or less. The rate of progression of signs was variable. Common features included dullness or lethargy (22), altered behaviour (21), proprioceptive and postural reaction deficits (18), circling (17), ataxia (17), decreased appetite (15) and weight loss (13). No consistent haematological or biochemical abnormalities were identified and serology failed to implicate Toxoplasma gondii or Neospora caninum. Cerebrospinal fluid analysis revealed mild or moderate mononuclear pleocytosis in 12 (70.6 per cent) of 17 dogs. No definitive antemortem diagnosis could be made in any affected dog.
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Affiliation(s)
- R E Shiel
- Section of Veterinary Clinical Studies, University College Dublin, Belfield, Dublin 4, Ireland.
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Affiliation(s)
- R. E. Shiel
- School of Agriculture, Food Science and Veterinary Medicine; University College Dublin; Belfield Dublin 4 Ireland
| | - S. F. Brennan
- School of Agriculture, Food Science and Veterinary Medicine; University College Dublin; Belfield Dublin 4 Ireland
| | - A. J. Omodo-Eluk
- School of Agriculture, Food Science and Veterinary Medicine; University College Dublin; Belfield Dublin 4 Ireland
| | - C. T. Mooney
- School of Agriculture, Food Science and Veterinary Medicine; University College Dublin; Belfield Dublin 4 Ireland
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Abstract
OBJECTIVES To document thyroid hormone abnormalities in dogs with non-thyroidal illness and identify markers of prognostic value. METHODS Circulating total and free thyroxine, total triiodothyronine and thyrotropin concentrations were measured in 196 dogs with non-thyroidal illness. Clinical signs, previous medications and outcome were recorded in each case. Data were analysed to determine endocrine prognostic factors, and to document the prevalence of thyroid hormone abnormalities. RESULTS Total triiodothyronine, and total and free thyroxine concentrations were decreased in 75.9, 34.7 and 4.5 per cent of cases, respectively. Dogs which were euthanased had significantly decreased total triiodothyronine, and total and free thyroxine concentrations compared with those which made a full recovery. Total triiodothyronine concentrations were significantly lower in dogs that were euthanased compared with those which made a partial recovery. CLINICAL SIGNIFICANCE Thyroid hormone concentrations may be used as prognostic indicators in dogs with non-thyroidal illness. Low triiodothyronine syndrome may be more common in dogs than previously recognised.
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Affiliation(s)
- C T Mooney
- University of Glasgow Veterinary School, Bearsden Road, Bearsden, Glasgow G61 1QH, UK
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Shiel CB, Shiel RE, Fairley JS. Seasonal changes in the foraging behaviour of Leisler's bats (Nyctalus leisleri) in Ireland as revealed by radio-telemetry. J Zool (1987) 1999. [DOI: 10.1111/j.1469-7998.1999.tb00770.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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