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Li K, Xiao X, Li Y, Lu S, Zi J, Sun X, Xu J, Liu HY, Li X, Song T, Cai D. Insights into the interplay between gut microbiota and lipid metabolism in the obesity management of canines and felines. J Anim Sci Biotechnol 2024; 15:114. [PMID: 39118186 PMCID: PMC11308499 DOI: 10.1186/s40104-024-01073-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 07/01/2024] [Indexed: 08/10/2024] Open
Abstract
Obesity is a prevalent chronic disease that has significant negative impacts on humans and our companion animals, including dogs and cats. Obesity occurs with multiple comorbidities, such as diabetes, hypertension, heart disease and osteoarthritis in dogs and cats. A direct link between lipid metabolism dysregulation and obesity-associated diseases has been implicated. However, the understanding of such pathophysiology in companion animals is limited. This review aims to address the role of lipid metabolism in various metabolic disorders associated with obesity, emphasizing the involvement of the gut microbiota. Furthermore, we also discuss the management of obesity, including approaches like nutritional interventions, thus providing novel insights into obesity prevention and treatment for canines and felines.
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Affiliation(s)
- Kaiqi Li
- Laboratory of Animal Physiology and Molecular Nutrition, Jiangsu Key Laboratory of Animal Genetic Breeding and Molecular Design, College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Xiangyu Xiao
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yuling Li
- School of Life Science and Engineering, Foshan University, Foshan, 528231, China
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, 310021, People's Republic of China
| | - Sichen Lu
- Laboratory of Animal Physiology and Molecular Nutrition, Jiangsu Key Laboratory of Animal Genetic Breeding and Molecular Design, College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Jianghang Zi
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xiaoqiang Sun
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jia Xu
- College of Agriculture, Jinhua Polytechnic, Jinhua, 321017, China
| | - Hao-Yu Liu
- Laboratory of Animal Physiology and Molecular Nutrition, Jiangsu Key Laboratory of Animal Genetic Breeding and Molecular Design, College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Xiaoqiong Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, 310021, People's Republic of China.
| | - Tongxing Song
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Demin Cai
- Laboratory of Animal Physiology and Molecular Nutrition, Jiangsu Key Laboratory of Animal Genetic Breeding and Molecular Design, College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China.
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Vecchiato CG, Golinelli S, Pinna C, Pilla R, Suchodolski JS, Tvarijonaviciute A, Rubio CP, Dorato E, Delsante C, Stefanelli C, Pagani E, Fracassi F, Biagi G. Fecal microbiota and inflammatory and antioxidant status of obese and lean dogs, and the effect of caloric restriction. Front Microbiol 2023; 13:1050474. [PMID: 36713218 PMCID: PMC9878458 DOI: 10.3389/fmicb.2022.1050474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 12/19/2022] [Indexed: 01/15/2023] Open
Abstract
Introduction Obesity is the most common nutritional disease in dogs, and is generally managed by caloric restriction. Gut microbiota alteration could represent a predisposing factor for obesity development, which has been associated with a low-grade inflammatory condition and an impaired antioxidant status. Besides, weight loss has been shown to influence the gut microbiota composition and reduce the inflammatory response and oxidative stress. Method However, these insights in canine obesity have not been fully elucidated. The aim of this study was to assess the differences in serum and inflammatory parameters, antioxidant status, fecal microbiota and bacterial metabolites in 16 obese and 15 lean client-owned dogs and how these parameters in obese may be influenced by caloric restriction. First, for 30 days, all dogs received a high-protein, high-fiber diet in amounts to maintain their body weight; later, obese dogs were fed for 180 days the same diet in restricted amounts to promote weight loss. Results Before the introduction of the experimental diet (T0), small differences in fecal microbial populations were detected between obese and lean dogs, but bacterial diversity and main bacterial metabolites did not differ. The fecal Dysbiosis Index (DI) was within the reference range (< 0) in most of dogs of both groups. Compared to lean dogs, obese dogs showed higher serum concentrations of acute-phase proteins, total thyroxine (TT4), and antioxidant capacity. Compared to T0, dietary treatment affected the fecal microbiota of obese dogs, decreasing the abundance of Firmicutes and increasing Bacteroides spp. However, these changes did not significantly affect the DI. The caloric restriction failed to exert significative changes on a large scale on bacterial populations. Consequently, the DI, bacterial diversity indices and metabolites were unaffected in obese dogs. Caloric restriction was not associated with a reduction of inflammatory markers or an improvement of the antioxidant status, while an increase of TT4 has been observed. Discussion In summary, the present results underline that canine obesity is associated with chronic inflammation. This study highlights that changes on fecal microbiota of obese dogs induced by the characteristics of the diet should be differentiated from those that are the consequence of the reduced energy intake.
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Affiliation(s)
- Carla Giuditta Vecchiato
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy,*Correspondence: Carla Giuditta Vecchiato, ✉
| | - Stefania Golinelli
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Carlo Pinna
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Rachel Pilla
- Gastrointestinal Laboratory, Texas A&M University, College Station, TX, United States
| | - Jan S. Suchodolski
- Gastrointestinal Laboratory, Texas A&M University, College Station, TX, United States
| | - Asta Tvarijonaviciute
- Interdisciplinary Laboratory of Clinical Analysis, Interlab-UMU, Regional Campus of International Excellence 'Campus Mare Nostrum', University of Murcia, Murcia, Spain
| | - Camila Peres Rubio
- Department of Animal and Food Science, School of Veterinary Science, Autonomous University of Barcelona, Barcelona, Spain
| | - Elisa Dorato
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Costanza Delsante
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Claudio Stefanelli
- Dipartimento di Scienze per la Qualità della Vita, University of Bologna, Rimini, Italy
| | - Elena Pagani
- Monge & C. S.p.A., Monasterolo di Savigliano, Italy
| | - Federico Fracassi
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Giacomo Biagi
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
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Stenberg K, Gensby L, Cremer SE, Nielsen MM, Bjørnvad CR. Analytical performance of a canine ELISA monocyte chemoattractant protein-1 assay for use in cats and evaluation of circulating levels in normal weight and obese cats. Acta Vet Scand 2022; 64:22. [PMID: 36064726 PMCID: PMC9446815 DOI: 10.1186/s13028-022-00640-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 08/22/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND In human and murine obesity, adipose tissue dwelling macrophages and adipocytes produce monocyte chemoattractant protein-1 (MCP-1) leading to systemic low-grade inflammation. The aim of the study was to validate a canine MCP-1 ELISA assay for use in cats and to investigate whether a difference in MCP-1 concentrations could be detected between: a) cats having normal or elevated circulating serum amyloid A (SAA) levels and b) normal weight and obese cats. Serum obtained from 36 client-owned cats of various breed, age and sex with normal (n = 20) to elevated SAA (n = 16) was used for the validation of the canine MCP-1 ELISA assay. As no golden standard exists for measurement of inflammation, circulating MCP-1 concentrations were compared to SAA measurements, as an indicator of systemic inflammation. Analytical precision, dilution recovery and detection limit were calculated. A possible correlation between MCP-1 concentrations and obesity related measures (body fat percentage (BF%), insulin sensitivity and cytokine expression) were investigated in another population of 73 healthy, lean to obese, neutered domestic short-haired cats. RESULTS Intra- (2.7-4.1%) and inter-assay (2.2-3.6%) coefficient of variation and dilution recovery were acceptable, and the detection limit was 27.1 pg/mL. MCP-1 did not correlate with SAA, and there was no difference between the inflammatory (SAA > 20 mg/L) and non-inflammatory group, due to a marked overlap in MCP-1 concentrations. Circulating MCP-1 concentrations were unaffected by BF% (r2 = 2.7 × 10-6, P = 0.21) and other obesity-related markers. CONCLUSIONS The present canine ELISA assay seems to be able to measure circulating feline MCP-1. However, further studies are needed to determine its possible use for detecting inflammation in relation to disease processes or obesity-related low-grade inflammation in cats.
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Affiliation(s)
- Kathrine Stenberg
- Department of Veterinary Clinical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Dyrlægevej 16, 1870 Frederiksberg, Denmark
| | - Line Gensby
- Department of Veterinary Clinical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Dyrlægevej 16, 1870 Frederiksberg, Denmark
- Present Address: AniCura Vangede Animal Hospital, Plantevej 2, 2870 Dyssegård, Denmark
| | - Signe Emilie Cremer
- Department of Veterinary Clinical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Dyrlægevej 16, 1870 Frederiksberg, Denmark
- Present Address: Coloplast, Holtedam 1-3, 3050 Humlebæk, Denmark
| | - Michelle Møller Nielsen
- Department of Veterinary Clinical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Dyrlægevej 16, 1870 Frederiksberg, Denmark
| | - Charlotte Reinhard Bjørnvad
- Department of Veterinary Clinical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Dyrlægevej 16, 1870 Frederiksberg, Denmark
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Ferreira CS, Vendramini THA, Amaral AR, Rentas MF, Ernandes MC, da Silva FL, Oba PM, de Oliveira Roberti Filho F, Brunetto MA. Metabolic variables of obese dogs with insulin resistance supplemented with yeast beta-glucan. BMC Vet Res 2022; 18:14. [PMID: 34980115 PMCID: PMC8722019 DOI: 10.1186/s12917-021-03106-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 08/14/2021] [Indexed: 11/19/2022] Open
Abstract
Background Obesity is one of the most common nutritional disorders in dogs and cats and is related to the development metabolic comorbidities. Weight loss is the recommended treatment, but success is difficult due to the poor satiety control. Yeast beta-glucans are known as biological modifiers because of their innumerable functions reported in studies with mice and humans, but only one study with dogs was found. This study aimed to evaluate the effects of a diet supplemented with 0.1% beta-glucan on glucose, lipid homeostasis, inflammatory cytokines and satiety parameters in obese dogs. Fourteen dogs composed three experimental groups: Obese group (OG) with seven dogs with body condition score (BCS) 8 or 9; Lean group (LG) included seven non-obese dogs with a BCS of 5; and Supplemented Obese group (SOG) was the OG dogs after 90 days of consumption of the experimental diet. Results Compared to OG, SOG had lower plasma basal glycemic values (p = 0.05) and reduced serum cholesterol and triglyceride levels. TNF-α was lower in SOG than in OG (p = 0.05), and GLP-1 was increased in SOG compared to OG and LG (p = 0.02). Conclusion These results are novel and important for recognizing the possibility of using beta-glucan in obesity prevention and treatment.
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Affiliation(s)
- Chayanne Silva Ferreira
- Rio Verde University, Fazenda Fontes do Saber, PO Box 104, Rio Verde, Goiás, 75901-970, Brazil
| | - Thiago Henrique Annibale Vendramini
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo, 87, Prof. Orlando Marques de Paiva Ave, São Paulo, São Paulo, 05508270, Brazil
| | - Andressa Rodrigues Amaral
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo, 87, Prof. Orlando Marques de Paiva Ave, São Paulo, São Paulo, 05508270, Brazil
| | - Mariana Fragoso Rentas
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo, 87, Prof. Orlando Marques de Paiva Ave, São Paulo, São Paulo, 05508270, Brazil
| | - Mariane Ceschin Ernandes
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo, 87, Prof. Orlando Marques de Paiva Ave, São Paulo, São Paulo, 05508270, Brazil
| | - Flavio Lopes da Silva
- Grandfood Industria e Comercio LTDA, Luiz Augusto de Oliveira Hwy, km 204, Dourado, São Paulo, 13590-000, Brazil
| | - Patricia Massae Oba
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo, 87, Prof. Orlando Marques de Paiva Ave, São Paulo, São Paulo, 05508270, Brazil
| | | | - Marcio Antonio Brunetto
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo, 87, Prof. Orlando Marques de Paiva Ave, São Paulo, São Paulo, 05508270, Brazil.
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Muñoz-Prieto A, Cerón JJ, Martínez-Subiela S, Mrljak V, Tvarijonaviciute A. A Systematic Review and Meta-Analysis of Serum Adiponectin Measurements in the Framework of Dog Obesity. Animals (Basel) 2020; 10:E1650. [PMID: 32937899 PMCID: PMC7552203 DOI: 10.3390/ani10091650] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/09/2020] [Accepted: 09/11/2020] [Indexed: 12/29/2022] Open
Abstract
Adiponectin is an abundant plasma protein that is closely related to obesity and obesity-related pathologies. The molecule can be found in three different isoforms, each with different biological activities. Studies on canine obesity have suggested that adiponectin concentrations are decreased in obesity; however, no canine meta-analyses have been performed that feature all the required data. The aim of this study is to perform a systematic review and meta-analysis of studies that pertain to total and high molecular weight (HMW) adiponectin in relation to canine obesity. From 20 different studies, a total of 366 dogs with obesity and 349 normal weight dogs are included in the meta-analysis. Client-owned dogs were most represented, accounting for 54.3% of the dogs used, while experimental dogs enrolled in the studies made up the remaining 45.7%. The concentrations of total adiponectin in dogs with obesity were significantly lower compared with normal weight dogs. Additionally, adiponectin concentrations were significantly higher in dogs after a successful weight loss protocol compared to the start of the protocol and were significantly lower in dogs after gaining weight. In conclusion, although caution should be taken due to the relatively low number of studies that exist and the high heterogeneity between them, this meta-analysis indicates that adiponectin is decreased in obese dogs.
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Affiliation(s)
- Alberto Muñoz-Prieto
- Clinic for Internal Diseases, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10000 Zagreb, Croatia; (A.M.-P.); (V.M.)
| | - José Joaquín Cerón
- Interlab-UMU, Regional Campus of International Excellence “Mare Nostrum”, University of Murcia, 30100 Murcia, Spain; (J.J.C.); (S.M.-S.)
| | - Silvia Martínez-Subiela
- Interlab-UMU, Regional Campus of International Excellence “Mare Nostrum”, University of Murcia, 30100 Murcia, Spain; (J.J.C.); (S.M.-S.)
| | - Vladimir Mrljak
- Clinic for Internal Diseases, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10000 Zagreb, Croatia; (A.M.-P.); (V.M.)
| | - Asta Tvarijonaviciute
- Interlab-UMU, Regional Campus of International Excellence “Mare Nostrum”, University of Murcia, 30100 Murcia, Spain; (J.J.C.); (S.M.-S.)
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Jeremias JT, Vendramini TH, Rodrigues RB, Perini MP, Pedrinelli V, Teixeira FA, Brunetto MA, Pontieri CF. Markers of inflammation and insulin resistance in dogs before and after weight loss versus lean healthy dogs. PESQUISA VETERINARIA BRASILEIRA 2020. [DOI: 10.1590/1678-5150-pvb-6245] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
ABSTRACT: Chronic low-grade inflammation in obesity is characterized by an increased production of pro-inflammatory cytokines that contribute to insulin resistance. For this study body composition, markers of inflammation and of insulin resistance in dogs before and after weight loss were compared to those of lean dogs. Eleven client-owned obese adult dogs underwent a weight loss program with commercial dry food for weight loss and reached an ideal body condition score (BCS) six months after the beginning of the weight loss program. A Control Group of nine dogs with ideal BCS were selected for the comparison. Shapiro-Wilk test was used to test for normality, Mann Whitney were used for non-normally distributes data, and Student t-test was used for normally distributed parameters. In the Obese Group body fat decreased from 41.6% (30.7-58.6) to 29.1% (18.6-46.3) (P<0.01) and dogs maintained lean body mass throughout the weight loss program (P>0.05). Obese dogs presented higher concentration of fructosamine, triglycerides, insulin, IGF-1 and leptin than the Control Group before weight reduction (P<0.05). Serum concentrations of triglycerides, IL-2, IL-6, TNF-α, insulin, leptin and IGF-1 decreased after weight loss (P<0.01), and these concentrations were similar to the Control Group (P>0.05), except for leptin (P<0.001). No alteration on peptide YY was found. Leptin (r=0.60, P=0.01), fructosamine (r=0.44, P=0.02) and triglycerides (r=0.40, P=0.04) concentrations correlated with the reduction of body fat. Weight loss reduced the concentrations of inflammatory and insulin resistance markers and most parameters became similar to dogs that have always been lean, reinforcing the importance of weight loss in small animal practice.
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Muñoz-Prieto A, Martínez-Subiela S, Caldin M, Cerón JJ, Tvarijonaviciute A. Use of proteases for the evaluation of the different adiponectin isoforms in the dog. Domest Anim Endocrinol 2020; 70:106380. [PMID: 31479926 DOI: 10.1016/j.domaniend.2019.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/20/2019] [Accepted: 07/20/2019] [Indexed: 11/23/2022]
Abstract
Adiponectin (ADP) is an adipokine secreted by adipose tissue with anti-inflammatory, antiatherogenic, and antidiabetic properties. In human serum, it is presented as three different forms: low molecular weight (LMW), medium molecular weight (MMW), and high molecular weight (HMW). High molecular weight isomer is the most active form of ADP and is more closely related with obesity-induced insulin resistance and metabolic syndrome than total ADP. Selective protease treatment can be used in humans to isolate the different ADP isoforms but this has not been applied in any veterinary species. Therefore, the objective of this study was to evaluate if the selective protease digestion is able to differentiate serum ADP isomers in dog samples, and if these isomers could change in obese dogs after a weight loss program. A Western blotting analysis confirmed that digestion with protease K showed only the HMW forms of ADP, whereas the use of protease A showed the HMW and MMW forms. This specific protease digestion was applied to serum obtained from 14 obese beagle dogs before and after a weight loss program and total ADP, HMW, and LMW forms increased significantly after the weight reduction. In conclusion, the use of selective protease digestion can be applied in canine serum as a procedure for detecting the different ADP isomers. In addition, by this procedure, it was showed that the HMW and LMW forms were increased after a weight loss program in our experimental conditions.
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Affiliation(s)
- A Muñoz-Prieto
- Interdisciplinary Laboratory of Clinical Analysis, Interlab-UMU, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Espinardo, Murcia, Spain
| | - S Martínez-Subiela
- Interdisciplinary Laboratory of Clinical Analysis, Interlab-UMU, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Espinardo, Murcia, Spain.
| | - M Caldin
- San Marco Veterinary Clinic, Via Dell'Industria 3, Veggiano, Padua, Italy
| | - J J Cerón
- Interdisciplinary Laboratory of Clinical Analysis, Interlab-UMU, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Espinardo, Murcia, Spain
| | - A Tvarijonaviciute
- Interdisciplinary Laboratory of Clinical Analysis, Interlab-UMU, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Espinardo, Murcia, Spain
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A new highly sensitive immunoassay for the detection of adiponectin in serum and saliva of dogs and its application in obesity and canine leishmaniosis. Res Vet Sci 2019; 125:374-381. [PMID: 31400635 DOI: 10.1016/j.rvsc.2019.07.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 07/18/2019] [Accepted: 07/31/2019] [Indexed: 10/26/2022]
Abstract
Adiponectin is an adipokine that exerts insulin-sensitizing and antiinflammatory properties. The aim of this study was to develop and validate a new heterologous ultrasensitive assay based on amplified luminescent technology for adiponectin determination in serum and saliva of dogs. A complete analytical validation of the assay was made in these fluids, and also this assay was applied to quantify adiponectin in serum and saliva of obese and lean dogs and dogs with leishmaniosis. These conditions were selected because in obesity there is a controversy about how adiponectin concentrations change in dogs, and in case of canine leishmaniosis, although it is described a decrease in serum adiponectin, there are not studies about how adiponectin changes after treatment. A total of 11 dogs were used in the validation and 26 dogs with different body condition and 8 with canine leishmaniosis were used for the clinical evaluation of the new assay for adiponectin quantification in serum and saliva of dogs. The analytical evaluation showed that the developed method could measure adiponectin in serum and saliva of dogs with high repeatability and sensitivity, adding a limit of quantification lower than commercially available ELISAs. In addition, significantly higher adiponectin concentrations were found in lean dogs and a correlation between serum and saliva was observed (P < .01). Moreover, dogs with leishmania presented reduced levels of adiponectin in serum. In conclusion, a new assay has been developed for adiponectin measurements which is more sensitive and faster than the traditional ELISA assays requiring less sample volume.
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Cortese L, Terrazzano G, Pelagalli A. Leptin and Immunological Profile in Obesity and Its Associated Diseases in Dogs. Int J Mol Sci 2019; 20:E2392. [PMID: 31091785 PMCID: PMC6566566 DOI: 10.3390/ijms20102392] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 05/06/2019] [Accepted: 05/08/2019] [Indexed: 12/29/2022] Open
Abstract
Growing scientific evidence has unveiled increased incidences of obesity in domestic animals and its influence on a plethora of associated disorders. Leptin, an adipokine regulating body fat mass, represents a key molecule in obesity, able to modulate immune responses and foster chronic inflammatory response in peripheral tissues. High levels of cytokines and inflammatory markers suggest an association between inflammatory state and obesity in dogs, highlighting the parallelism with humans. Canine obesity is a relevant disease always accompanied with several health conditions such as inflammation, immune-dysregulation, insulin resistance, pancreatitis, orthopaedic disorders, cardiovascular disease, and neoplasia. However, leptin involvement in many disease processes in veterinary medicine is poorly understood. Moreover, hyperleptinemia as well as leptin resistance occur with cardiac dysfunction as a consequence of altered cardiac mitochondrial metabolism in obese dogs. Similarly, leptin dysregulation seems to be involved in the pancreatitis pathophysiology. This review aims to examine literature concerning leptin and immunological status in obese dogs, in particular for the aspects related to obesity-associated diseases.
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Affiliation(s)
- Laura Cortese
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, 80137 Naples, Italy.
| | - Giuseppe Terrazzano
- Department of Science, University of Basilicata, 85100 Potenza, Italy.
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy.
| | - Alessandra Pelagalli
- Department of Advanced Biomedical Sciences, University of Naples Federico II, 80131 Naples, Italy.
- Institute of Biostructures and Bioimages (IBB), National Research Council (CNR), 80131 Naples, Italy.
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Effects of body fat mass and therapeutic weight loss on vitamin D status in privately owned adult dogs. J Nutr Sci 2018; 7:e17. [PMID: 29721315 PMCID: PMC5921043 DOI: 10.1017/jns.2018.7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 02/24/2018] [Accepted: 02/26/2018] [Indexed: 12/30/2022] Open
Abstract
More than one-third of humans and companion dogs in Western societies are overweight or obese. In people, vitamin D deficiency is widespread and associated with obesity, a now recognised inflammatory state. Low vitamin D status occurs in dogs with inflammatory conditions, but its relationship with obesity has not been investigated. In otherwise healthy privately owned adult dogs of ideal body condition (control, n 7) and dogs with overweight to obese body condition (treatment, n 8), serum 25-hydroxyvitamin D (25(OH)D) concentration and body composition as inferred from 2H-labelled water dilution space were evaluated. Subsequently, the dogs were transitioned to a commercial canine therapeutic weight-loss diet; control dogs were fed to maintain body weight and treatment dogs were energy-restricted to achieve a safe weight-loss rate. Thereafter, serum 25(OH)D concentration was re-evaluated 8 weeks after diet transition, and at the study end, which was 6 months or when ideal body condition was achieved. At study end, body composition analysis was repeated. Initial body condition scores and percentage body fat were positively correlated (ρ = 0·891; P < 0·001). However, percentage body fat and serum 25(OH)D concentration were not significantly correlated. Final serum 25(OH)D concentrations were greater (P < 0·05) than initial concentrations for control and treatment groups, indicating a diet but not weight-loss effect on vitamin D status. These findings suggest that vitamin D status of dogs is not affected by obesity or loss of body fat with therapeutic weight reduction.
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Key Words
- 24,25(OH)2D3, 24,25-dihydroxyvitamin D3
- 25(OH)D, 25-hydroxyvitamin D
- 25(OH)D3, 25-hydroxyvitamin D3
- 25-Hydroxyvitamin D
- Adiposity
- BCS, body condition score
- BF%, body fat percentage
- BF, body fat
- BFM, body fat mass
- BLM, body lean mass
- BW, body weight
- Canine weight loss
- Cholecalciferol
- NRC RA, National Research Council recommended allowance
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Ladha C, Belshaw Z, O'Sullivan J, Asher L. A step in the right direction: an open-design pedometer algorithm for dogs. BMC Vet Res 2018; 14:107. [PMID: 29558919 PMCID: PMC5861607 DOI: 10.1186/s12917-018-1422-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 03/12/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Accelerometer-based technologies could be useful in providing objective measures of canine ambulation, but most are either not tailored to the idiosyncrasies of canine gait, or, use un-validated or closed source approaches. The aim of this paper was to validate algorithms which could be applied to accelerometer data for i) counting the number of steps and ii) distance travelled by a dog. To count steps, an approach based on partitioning acceleration was used. This was applied to accelerometer data from 13 dogs which were walked a set distance and filmed. Each footfall captured on video was annotated. In a second experiment, an approach based on signal features was used to estimate distance travelled. This was applied to accelerometer data from 10 dogs with osteoarthritis during normal walks with their owners where GPS (Global Positioning System) was also captured. Pearson's correlations and Bland Altman statistics were used to compare i) the number of steps measured on video footage and predicted by the algorithm and ii) the distance travelled estimated by GPS and predicted by the algorithm. RESULTS Both step count and distance travelled could be estimated accurately by the algorithms presented in this paper: 4695 steps were annotated from the video and the pedometer was able to detect 91%. GPS logged a total of 20,184 m meters across all dogs; the mean difference between the predicted and GPS estimated walk length was 211 m and the mean similarity was 79%. CONCLUSIONS The algorithms described show promise in detecting number of steps and distance travelled from an accelerometer. The approach for detecting steps might be advantageous to methods which estimate gross activity because these include energy output from stationary activities. The approach for estimating distance might be suited to replacing GPS in indoor environments or others with limited satellite signal. The algorithms also allow for temporal and spatial components of ambulation to be calculated. Temporal and spatial aspects of dog ambulation are clinical indicators which could be used for diagnosis or monitoring of certain diseases, or used to provide information in support of canine weight-loss programmes.
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Affiliation(s)
- C Ladha
- Centre for Behaviour and Evolution, Henry Wellcome Building, Newcastle University, Newcastle, NE2 4HH, UK. .,, VetSens. 53 Wellburn Park, Jesmond, Newcastle, NE2 2JY, UK.
| | - Z Belshaw
- School of Veterinary Medicine and Science, University of Nottingham, Sutton, Bonington Campus, Leicestershire, LE12 5RD, UK
| | - J O'Sullivan
- Centre for Behaviour and Evolution, Henry Wellcome Building, Newcastle University, Newcastle, NE2 4HH, UK
| | - L Asher
- Centre for Behaviour and Evolution, Henry Wellcome Building, Newcastle University, Newcastle, NE2 4HH, UK
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12
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Raghu C, Ekena J, Cullen JM, Webb CB, Trepanier LA. Evaluation of potential serum biomarkers of hepatic fibrosis and necroinflammatory activity in dogs with liver disease. J Vet Intern Med 2018; 32:1009-1018. [PMID: 29485210 PMCID: PMC5980386 DOI: 10.1111/jvim.15064] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 01/08/2018] [Accepted: 01/16/2018] [Indexed: 02/06/2023] Open
Abstract
Background Serum interleukin 6 (IL‐6), chemokine ligand 2 (CCL2), C‐reactive protein (CRP), and the ratio of aspartate transaminase to alanine transaminase (AST:ALT) have been correlated with fibrosis and necroinflammatory activity in humans with various hepatopathies. Hypothesis/Objectives To determine whether increases in serum IL‐6, CCL2, CRP, or AST:ALT were associated with moderate to severe fibrosis or necroinflammatory activity in dogs with various hepatopathies. Animals Forty‐four client‐owned dogs with clinical evidence of liver disease and 10 healthy purpose‐bred dogs, all undergoing liver biopsies by laparoscopy or laparotomy. Methods Measurement of serum IL‐6, CCL2, CRP, AST, and ALT before scheduled liver biopsy and evaluation of liver histopathology using the METAVIR scoring system used in human medicine, blinded to clinical presentation. Results Median serum IL‐6 was approximately twice as high in dogs with high fibrosis scores (15.5 pg/mL; range, 1.4 to 235 pg/mL) compared to dogs with low fibrosis scores (7.6 pg/mL; range, 1.4 to 148.1 pg/mL), with marginal significance (P = .05). Median serum CCL2 was significantly higher in dogs with active necroinflammation (444 pg/mL; range, 144 to 896 pg/mL) compared to dogs without detectable necroinflammation (326 pg/mL; range, 59 to 1692 pg/mL; P = .008), but with considerable overlap between groups. Neither serum CRP nor AST:ALT ratios were significantly different based on fibrosis or necroinflammatory scores. Conclusions and Clinical Importance Because of substantial variability among dogs, single measurements of IL‐6 and CCL2 have limited diagnostic utility for identifying fibrosis or necroinflammation, respectively, in dogs with various chronic liver diseases. The value of these biomarkers should be explored further in monitoring response to treatment in individual dogs with chronic hepatopathies.
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Affiliation(s)
- Chantel Raghu
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin
| | - Joanne Ekena
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin
| | - John M Cullen
- Department of Public Health and Pathobiology, North Carolina State University, College of Veterinary Medicine, Raleigh, North Carolina
| | - Craig B Webb
- Department of Clinical Sciences, Colorado State University, College of Veterinary Medicine and Biomedical Sciences, Fort Collins, Colorado
| | - Lauren A Trepanier
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin
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13
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Vitger AD, Stallknecht BM, Miles JE, Hansen SL, Vegge A, Bjørnvad CR. Immunometabolic parameters in overweight dogs during weight loss with or without an exercise program. Domest Anim Endocrinol 2017; 59:58-66. [PMID: 27951413 DOI: 10.1016/j.domaniend.2016.10.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 10/28/2016] [Accepted: 10/30/2016] [Indexed: 11/28/2022]
Abstract
The influence of physical activity on metabolic health in overweight dogs is unknown. This study was conducted to evaluate biomarkers of immunometabolic health in relation to changes in physical activity and adiposity. Client-owned overweight dogs participated in a 12-wk intervention based on caloric restriction combined with a training program (fitness and diet [FD] group, n = 8), or caloric restriction alone (diet-only [DO] group, n = 8). Physical activity was monitored by accelerometry. All dogs were fed the same diet and achieved similar weight loss. Fasting blood samples were collected before and after 6- and 12-wk intervention. Insulin resistance was evaluated from plasma insulin and C-peptide as well as homeostasis model assessment. Inflammation and dyslipidemia were evaluated from circulating leptin, adiponectin, C-reactive protein (CRP), monocyte chemoattractant factor-1 (MCP-1), interleukin-8 (IL-8), and cholesterol. Accelerometer counts in both groups were high compared with previous reports of physical activity in overweight dogs. No difference in blood parameters was evident between groups, evaluated by linear mixed-effects model (P > 0.05). Within the groups, the following changes were significant by t-test (P < 0.05): leptin decreased in both groups. Within the FD group, IL-8, MCP-1, and CRP decreased at 6 wk and IL-8 and cholesterol at 12 wk. Within the DO group, C-peptide and HOMA decreased at 6 wk and C-peptide at 12 wk. We conclude that, for both groups, weight loss resulted in minor indications of improved immunometabolic health, whereas this level of physical activity did not add further benefits.
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Affiliation(s)
- A D Vitger
- Department of Veterinary Clinical and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - B M Stallknecht
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - J E Miles
- Department of Veterinary Clinical and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | - A Vegge
- Incretin & Obesity Research, Global Research, Novo Nordisk, Måløv, Denmark
| | - C R Bjørnvad
- Department of Veterinary Clinical and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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14
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Cairns-Haylor T, Fordyce P. Mapping discussion of canine obesity between veterinary surgeons and dog owners: a provisional study. Vet Rec 2017; 180:149. [DOI: 10.1136/vr.103878] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/16/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Theodora Cairns-Haylor
- Department of Veterinary Medicine; University of Cambridge; Madingley Rd Cambridge CB30ES UK
| | - Peter Fordyce
- Department of Veterinary Medicine; University of Cambridge; Madingley Rd Cambridge CB30ES UK
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15
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16
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Shin JI, Lim HY, Kim HW, Seung BJ, Ju JH, Sur JH. Analysis of Obesity-Related Factors and their Association with Aromatase Expression in Canine Malignant Mammary Tumours. J Comp Pathol 2016; 155:15-23. [DOI: 10.1016/j.jcpa.2016.05.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 04/06/2016] [Accepted: 05/07/2016] [Indexed: 12/01/2022]
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17
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Metabolic Effects of Obesity and Its Interaction with Endocrine Diseases. Vet Clin North Am Small Anim Pract 2016; 46:797-815. [PMID: 27297495 DOI: 10.1016/j.cvsm.2016.04.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Obesity in pet dogs and cats is a significant problem in developed countries, and seems to be increasing in prevalence. Excess body fat has adverse metabolic consequences, including insulin resistance, altered adipokine secretion, changes in metabolic rate, abnormal lipid metabolism, and fat accumulation in visceral organs. Obese cats are predisposed to endocrine and metabolic disorders such as diabetes and hepatic lipidosis. A connection likely also exists between obesity and diabetes mellitus in dogs. No system has been developed to identify obese pets at greatest risk for development of obesity-associated metabolic diseases, and further study in this area is needed.
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18
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Abstract
Obesity is not a cosmetic or social issue; it is an animal health issue. The metabolic effects of obesity on insulin resistance and development of hyperlipidemia and the mechanical stress excess weight places on the musculoskeletal system are well established in the literature. Additional health risks from obesity, such as fatty accumulation in the liver, intestinal bacterial dysbiosis, and changes to renal architecture, are less well understood, but have been demonstrated to occur clinically in obese animals and may lead to deleterious long-term health effects. Keeping dogs and cats lean lowers their risk for development of certain diseases and leads to a longer and better quality of life.
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Affiliation(s)
- Lisa P Weeth
- Weeth Nutrition Services, 25 Chester Street, Edinburgh EH3 7EN, UK; Clinical Nutrition Department, Telemedicine Services, Gulf Coast Veterinary Specialists, 1111 West Loop South, Houston, TX 77027, USA.
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19
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Bell MA, Levine CB, Downey RL, Griffitts C, Mann S, Frye CW, Wakshlag JJ. Influence of endurance and sprinting exercise on plasma adiponectin, leptin and irisin concentrations in racing Greyhounds and sled dogs. Aust Vet J 2016; 94:154-9. [DOI: 10.1111/avj.12436] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Revised: 07/08/2015] [Accepted: 07/18/2015] [Indexed: 11/28/2022]
Affiliation(s)
- MA Bell
- Craigieburn Animal Hospital; Craigieburn Victoria Australia
| | - CB Levine
- Cornell University College of Veterinary Medicine; Department of Clinical Sciences; Ithaca, New York, 14853 USA
| | | | | | - S Mann
- Cornell University College of Veterinary Medicine; Department of Clinical Sciences; Ithaca, New York, 14853 USA
| | - CW Frye
- Cornell University College of Veterinary Medicine; Department of Clinical Sciences; Ithaca, New York, 14853 USA
| | - JJ Wakshlag
- Cornell University College of Veterinary Medicine; Department of Clinical Sciences; Ithaca, New York, 14853 USA
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20
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Stachowiak M, Szczerbal I, Switonski M. Genetics of Adiposity in Large Animal Models for Human Obesity-Studies on Pigs and Dogs. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2016; 140:233-70. [PMID: 27288831 DOI: 10.1016/bs.pmbts.2016.01.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The role of domestic mammals in the development of human biomedical sciences has been widely documented. Among these model species the pig and dog are of special importance. Both are useful for studies on the etiology of human obesity. Genome sequences of both species are known and advanced genetic tools [eg, microarray SNP for genome wide association studies (GWAS), next generation sequencing (NGS), etc.] are commonly used in such studies. In the domestic pig the accumulation of adipose tissue is an important trait, which influences meat quality and fattening efficiency. Numerous quantitative trait loci (QTLs) for pig fatness traits were identified, while gene polymorphisms associated with these traits were also described. The situation is different in dog population. Generally, excessive accumulation of adipose tissue is considered, similar to humans, as a complex disease. However, research on the genetic background of canine obesity is still in its infancy. Between-breed differences in terms of adipose tissue accumulation are well known in both animal species. In this review we show recent advances of studies on adipose tissue accumulation in pigs and dogs, and their potential importance for studies on human obesity.
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Affiliation(s)
- M Stachowiak
- Department of Genetics, Animal Breeding, Poznań University of Life Sciences, Poznań, Poland
| | - I Szczerbal
- Department of Genetics, Animal Breeding, Poznań University of Life Sciences, Poznań, Poland
| | - M Switonski
- Department of Genetics, Animal Breeding, Poznań University of Life Sciences, Poznań, Poland.
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21
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Floerchinger AM, Jackson MI, Jewell DE, MacLeay JM, Paetau-Robinson I, Hahn KA. Effect of feeding a weight loss food beyond a caloric restriction period on body composition and resistance to weight gain in dogs. J Am Vet Med Assoc 2015. [DOI: 10.2460/javma.247.4.375] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Song J, Kang SM, Kim E, Kim CH, Song HT, Lee JE. Adiponectin receptor-mediated signaling ameliorates cerebral cell damage and regulates the neurogenesis of neural stem cells at high glucose concentrations: an in vivo and in vitro study. Cell Death Dis 2015; 6:e1844. [PMID: 26247729 PMCID: PMC4558511 DOI: 10.1038/cddis.2015.220] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 07/03/2015] [Accepted: 07/06/2015] [Indexed: 01/06/2023]
Abstract
In the central nervous system (CNS), hyperglycemia leads to neuronal damage and cognitive decline. Recent research has focused on revealing alterations in the brain in hyperglycemia and finding therapeutic solutions for alleviating the hyperglycemia-induced cognitive dysfunction. Adiponectin is a protein hormone with a major regulatory role in diabetes and obesity; however, its role in the CNS has not been studied yet. Although the presence of adiponectin receptors has been reported in the CNS, adiponectin receptor-mediated signaling in the CNS has not been investigated. In the present study, we investigated adiponectin receptor (AdipoR)-mediated signaling in vivo using a high-fat diet and in vitro using neural stem cells (NSCs). We showed that AdipoR1 protects cell damage and synaptic dysfunction in the mouse brain in hyperglycemia. At high glucose concentrations in vitro, AdipoR1 regulated the survival of NSCs through the p53/p21 pathway and the proliferation- and differentiation-related factors of NSCs via tailless (TLX). Hence, we suggest that further investigations are necessary to understand the cerebral AdipoR1-mediated signaling in hyperglycemic conditions, because the modulation of AdipoR1 might alleviate hyperglycemia-induced neuropathogenesis.
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Affiliation(s)
- J Song
- Department of Anatomy, Yonsei University College of Medicine, Seoul 120-752, South Korea
| | - S M Kang
- 1] Department of Anatomy, Yonsei University College of Medicine, Seoul 120-752, South Korea [2] BK21 Plus Project for Medical Sciences and Brain Research Institute, Yonsei University College of Medicine, Seoul 120-752, South Korea
| | - E Kim
- Department of Psychiatry, Yonsei University College of Medicine, Seoul 120-752, South Korea
| | - C-H Kim
- Department of Pharmacology, Yonsei University College of Medicine, Seoul 120-752, South Korea
| | - H-T Song
- Department of Diagnostic Radiology, Yonsei University College of Medicine, Seoul 120-752, South Korea
| | - J E Lee
- 1] Department of Anatomy, Yonsei University College of Medicine, Seoul 120-752, South Korea [2] BK21 Plus Project for Medical Sciences and Brain Research Institute, Yonsei University College of Medicine, Seoul 120-752, South Korea
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23
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Frank L, Mann S, Levine CB, Cummings BP, Wakshlag JJ. Increasing body condition score is positively associated interleukin-6 and monocyte chemoattractant protein-1 in Labrador retrievers. Vet Immunol Immunopathol 2015; 167:104-9. [PMID: 26235599 DOI: 10.1016/j.vetimm.2015.07.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Revised: 07/01/2015] [Accepted: 07/20/2015] [Indexed: 02/03/2023]
Abstract
The accumulation of excess body fat is a growing problem in dogs as well as people. Contrary to prior understanding of adipose tissue, fat is now considered to be an active endocrine organ that promotes a chronic low-grade inflammatory state often characterized by an increase in pro-inflammatory cytokines and chemokines. These have been implicated in several obesity-related disorders such as insulin resistance, cardiovascular disease, and neoplasia. The purpose of this study was to characterize fasting plasma cytokine concentrations in ninety-two healthy client-owned Labrador retriever dogs of various ages and body condition scores. The dogs were grouped according to body condition score (BCS) into three categories, lean, overweight and obese. The following cytokines and chemokines were evaluated; tumor necrosis factor-alpha, interleukin-2, interleukin-6, interleukin-8, and monocyte chemotactic protein-1 (TNF-α, IL-2, IL-6, IL-8, MCP-1). Our results indicated that fasting plasma IL-6 and MCP-1 concentrations are associated with increasing BCS. This data suggest that certain markers of inflammation increase with increasing body condition score, and that dogs, similar to humans, may be fostering a chronic inflammatory state due to obesity.
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Affiliation(s)
- Lauren Frank
- Cornell University Veterinary Specialists, Stanford, CT 06905, United States
| | - Sabine Mann
- Cornell University College of Veterinary Medicine, Department of Population Medicine, Ithaca, NY 14853, United States
| | - Corri B Levine
- Cornell University College of Veterinary Medicine, Department of Clinical Sciences, Ithaca, NY 14853, United States
| | - Bethany P Cummings
- Cornell University College of Veterinary Medicine, Department of Biomedical Sciences, Ithaca, NY 14853, United States
| | - Joseph J Wakshlag
- Cornell University College of Veterinary Medicine, Department of Clinical Sciences, Ithaca, NY 14853, United States.
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24
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Brooks D, Churchill J, Fein K, Linder D, Michel KE, Tudor K, Ward E, Witzel A. 2014 AAHA weight management guidelines for dogs and cats. J Am Anim Hosp Assoc 2015; 50:1-11. [PMID: 24216501 DOI: 10.5326/jaaha-ms-6331] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Communicating and implementing a weight management program for dogs and cats can be a challenging endeavor for veterinarians, but a rewarding one. An effective individualized weight loss program provides a consistent and healthy rate of weight loss to reduce risk of disease, prevent malnutrition, and improve quality of life. Weight loss is achieved with appropriate caloric restriction, diet selection, exercise, and strategies to help modify behavior of both the pet and client. This document offers guidelines and tools for the management of weight loss and long-term maintenance of healthy weight.
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25
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Streeter RM, Struble AM, Mann S, Nydam DV, Bauer JE, Castelhano MG, Todhunter RJ, Cummings BP, Wakshlag JJ. The associations between serum adiponectin, leptin, C-reactive protein, insulin, and serum long-chain omega-3 fatty acids in Labrador Retrievers. VETERINARY MEDICINE-RESEARCH AND REPORTS 2015; 6:103-110. [PMID: 30155437 PMCID: PMC6065592 DOI: 10.2147/vmrr.s60478] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Obesity has been associated with an increased inflammatory response and insulin resistance due to adipose tissue–derived adipokines and increases in C-reactive protein (CRP). Dogs appear to be similar to other species with the exception of adiponectin, which might not be affected by obesity status. Serum long-chain polyunsaturated fatty acid concentrations have been positively and negatively associated with serum adipokines. The aim of the study was to examine the relationship between leptin, CRP, adiponectin, and insulin to body condition score (BCS) and to the long-chain omega-3 fatty acids in serum lipoproteins, including alpha-linolenic acid, eicosapentaenoic acid (EPA), docosapentanenoic acid (DPA), and docosahexaenoic acid (DHA) as a reflection of dietary omega-3 status in the Labrador Retriever. Seventy-seven Labrador Retrievers were evaluated for BCS, percent fasting serum lipoprotein fatty acid concentrations, as well as serum leptin, adiponectin, insulin, and CRP. A multivariable general linear regression model was constructed to examine the association between the dependent variables leptin, CRP, adiponectin, and insulin and the predictor variables of BCS, age, and sex, as well as concentrations of alpha-linolenic acid, EPA, DHA, and DPA. Adiponectin concentration was positively associated with age (P<0.0008), EPA (P=0.027) and negatively associated with DHA (P=0.008). Leptin concentration was positively associated with an increased DHA (P=0.009), BCS (P<0.0001), age (P=0.02), and decreased DPA (P=0.06). Insulin concentration was only associated with BCS (P<0.0001), and no meaningful associations were found for CRP. Longer chain omega-3 fatty acids may play a role in regulating adiponectin concentrations in dogs. However, because insulin concentrations were associated only with BCSs, further examination of the role of adiponectin in canine obesity is warranted. EPA and DPA may reduce the overall inflammatory state in dogs as these omega-3 fatty acids reflect increased adiponectin (increased EPA and decreased DHA) and decreased leptin (decreased DHA and increased DPA).
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Affiliation(s)
| | | | - Sabine Mann
- Department of Population Medicine, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Daryl V Nydam
- Department of Population Medicine, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - John E Bauer
- Department of Clinical Sciences, Texas A&M University, College Station, TX, USA
| | | | | | - Bethany P Cummings
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
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26
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Love L, Cline MG. Perioperative physiology and pharmacology in the obese small animal patient. Vet Anaesth Analg 2015; 42:119-32. [DOI: 10.1111/vaa.12219] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Accepted: 07/02/2014] [Indexed: 01/08/2023]
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27
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Aguilar-Valles A, Inoue W, Rummel C, Luheshi GN. Obesity, adipokines and neuroinflammation. Neuropharmacology 2015; 96:124-34. [PMID: 25582291 DOI: 10.1016/j.neuropharm.2014.12.023] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 12/16/2014] [Accepted: 12/19/2014] [Indexed: 12/14/2022]
Abstract
Global levels of obesity are reaching epidemic proportions, leading to a dramatic increase in incidence of secondary diseases and the significant economic burden associated with their treatment. These comorbidities include diabetes, cardiovascular disease, and some psychopathologies, which have been linked to a low-grade inflammatory state. Obese individuals exhibit an increase in circulating inflammatory mediators implicated as the underlying cause of these comorbidities. A number of these molecules are also manufactured and released by white adipose tissue (WAT), in direct proportion to tissue mass and are collectively known as adipokines. In the current review we focused on the role of two of the better-studied members of this family namely, leptin and adiponectin, with particular emphasis on their role in neuro-immune interactions, neuroinflammation and subsequent brain diseases. This article is part of a Special Issue entitled 'Neuroimmunology and Synaptic Function'.
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Affiliation(s)
- Argel Aguilar-Valles
- Department of Neuroscience, Université de Montréal and Goodman Cancer Centre, Department of Biochemistry, McGill University, Montréal, Canada
| | - Wataru Inoue
- Robarts Research Institute, Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Christoph Rummel
- Department of Veterinary-Physiology and -Biochemistry, Justus-Liebig-University Giessen, Frankfurter Strasse 100, D-35392 Giessen, Germany
| | - Giamal N Luheshi
- Douglas Mental Health University Institute, Department of Psychiatry, McGill University, Montreal, Quebec H4H 1R3, Canada.
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28
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Loftus JP, Wakshlag JJ. Canine and feline obesity: a review of pathophysiology, epidemiology, and clinical management. VETERINARY MEDICINE (AUCKLAND, N.Z.) 2014; 6:49-60. [PMID: 30101096 PMCID: PMC6067794 DOI: 10.2147/vmrr.s40868] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Canine and feline obesity rates have reached pandemic proportions and are similar to those in humans, with approximately 30%-40% of dogs and cats being overweight to obese. Obesity has been associated with other health problems, including osteoarthritis, renal disease, skin disease, insulin resistance, and neoplasia in dogs, while in cats obesity is associated with dermatological issues, diabetes mellitus, neoplasia, and urolithiasis. The health issues appear to be slightly different across the two species, which may be due to some inherent differences in the hormonal milieu involved in obesity that differs between the dog and the cat. In this review, we discuss the complicated nature of the pathogenesis of obesity, the hormonal stimulus for orexigenic and anorexigenic behavior, adipose tissue as an endocrine organ, and most importantly, clinical management of the number one disease in canine and feline medicine.
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Affiliation(s)
- John P Loftus
- Cornell University College of Veterinary Medicine, Veterinary Medical Center, Ithaca, NY, USA,
| | - Joseph J Wakshlag
- Cornell University College of Veterinary Medicine, Veterinary Medical Center, Ithaca, NY, USA,
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29
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Damoiseaux C, Merveille AC, Krafft E, Da Costa AM, Gomart S, Jespers P, Michaux C, Clercx C, Verhoeven C, Mc Entee K. Effect of physiological determinants and cardiac disease on plasma adiponectin concentrations in dogs. J Vet Intern Med 2014; 28:1738-45. [PMID: 25311942 PMCID: PMC4895643 DOI: 10.1111/jvim.12433] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 06/10/2014] [Accepted: 07/14/2014] [Indexed: 11/27/2022] Open
Abstract
Background In humans, a high concentration of adiponectin is associated with a favorable cardiovascular risk profile whereas, in patients with heart failure (HF), a high concentration of adiponectin is associated with a less favorable prognosis. Hypothesis/Objectives To evaluate the physiological determinants of plasma adiponectin concentration in dogs and the influence of heart disease, myxomatous mitral valve disease (MMVD), and dilated cardiomyopathy (DCM). Animals One hundred and fourteen client‐owned dogs and 9 Beagles from the research colony of the Clinical Veterinary Unit of the University of Liège. Methods We prospectively measured circulating adiponectin concentration in healthy control dogs (n = 77), dogs with MMVD (n = 22) and dogs with DCM (n = 15) of various degrees of severity. Diagnosis was confirmed by Doppler echocardiography. Plasma adiponectin concentration was measured by a canine‐specific sandwich ELISA kit. Results An analysis of covariance showed an association between adiponectin concentration and age, neuter status, and heart disease. No association between adiponectin concentration and class of HF, sex, body condition score, body weight, circadian rhythm, or feeding was found. Plasma adiponectin concentration was negatively correlated with age (P = .001). Adiponectin was lower in neutered (P = .008) compared to intact dogs. Circulating adiponectin concentration was increased in dogs with DCM compared to healthy dogs (P = .018) and to dogs with MMVD (P = .014). Conclusions and Clinical Importance Age and neutering negatively influence circulating adiponectin concentration. Plasma adiponectin concentration increased in dogs with DCM. Additional research is required to investigate if this hormone is implicated in the pathophysiology of DCM and associated with clinical outcome.
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Affiliation(s)
- C Damoiseaux
- Department of Small Animal Clinical Sciences, Faculty of Veterinary Medicine, Université de Liège, Liège, Belgium
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Short-term obesity results in detrimental metabolic and cardiovascular changes that may not be reversed with weight loss in an obese dog model. Br J Nutr 2014; 112:647-56. [PMID: 24877650 DOI: 10.1017/s0007114514001214] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The time course of metabolic and cardiovascular changes with weight gain and subsequent weight loss has not been elucidated. The goal of the present study was to determine how weight gain, weight loss and altered body fat distribution affected metabolic and cardiovascular changes in an obese dog model. Testing was performed when the dogs were lean (scores 4-5 on a nine-point scale), after ad libitum feeding for 12 and 32 weeks to promote obesity (>5 score), and after weight loss. Measurements included serum glucose and insulin, plasma leptin, adiponectin and C-reactive protein, echocardiography, flow-mediated dilation and blood pressure. Body fat distribution was assessed by computed tomography. Fasting serum glucose concentrations increased significantly with obesity (P< 0·05). Heart rate increased by 22 (SE 5) bpm after 12 weeks of obesity (P= 0·003). Systolic left ventricular free wall thickness increased after 12 weeks of obesity (P= 0·002), but decreased after weight loss compared with that observed in the lean phase (P= 0·03). Ventricular free wall thickness was more strongly correlated with visceral fat (r 0·6, P= 0·001) than with total body fat (r 0·4, P= 0·03) and was not significantly correlated with subcutaneous body fat (r 0·3, P= 0·1). The present study provides evidence that metabolic and cardiovascular alterations occur within only 12 weeks of obesity in an obese dog model and are strongly predicted by visceral fat. These results emphasise the importance of obesity prevention, as weight loss did not result in the return of all metabolic indicators to their normal levels. Moreover, systolic cardiac muscle thickness was reduced after weight loss compared with the pre-obesity levels, suggesting possible acute adverse cardiovascular effects.
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Mazaki-Tovi M, Abood SK, Schenck PA. Fish oil supplementation increases concentration of adiponectin in healthy dogs. J Small Anim Pract 2014; 55:247-53. [DOI: 10.1111/jsap.12194] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M. Mazaki-Tovi
- Diagnostic Center for Population and Animal Health; Michigan State University; East Lansing MI 48824 USA
| | - S. K. Abood
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine; Michigan State University; East Lansing MI 48824 USA
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Manens J, Ricci R, Damoiseaux C, Gault S, Contiero B, Diez M, Clercx C. Effect of body weight loss on cardiopulmonary function assessed by 6-minute walk test and arterial blood gas analysis in obese dogs. J Vet Intern Med 2013; 28:371-8. [PMID: 24351032 PMCID: PMC4858022 DOI: 10.1111/jvim.12260] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Revised: 10/05/2013] [Accepted: 10/24/2013] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Few studies show the detrimental effect of canine obesity on cardiopulmonary function (CPF). The 6-Minute Walk Test (6MWT) is a noninvasive exercise test easy to perform in clinical settings. OBJECTIVE The aim of this study was to investigate the effect of obesity and body weight loss (BWL) on CPF assessed by the 6MWT and arterial blood gas analysis. ANIMALS Six experimental Beagles and 9 privately owned obese dogs were enrolled in a diet-induced BWL program. METHODS Arterial blood gas analysis and 6MWT were repeated in obese subjects (BCS 8-9/9), in the middle of BWL (overweight, BCS 6-7/9), and in lean dogs (BCS 5/9). Heart rate (HRp) and oxygen saturation (SpO2 ) were measured by pulse oximetry before the 6MWT, at midtest, and during a 5-minute recovery period. RESULTS Twelve dogs completed the BWL program (initial BW, 27.3 ± 2.9 kg; final BW, 20.85 ± 2.9, lsmeans ± SE, P ≤ .001). BWL caused a significant increase in 6MWT walked distance (WD; obese: 509 ± 35 m; overweight: 575 ± 36 m; lean: 589 ± 36 m; P ≤ .05). Resting arterial blood gas results were not influenced by BWL. Including all time points, obese dogs showed higher HRp and lower SpO2 compared to overweight and lean dogs. SpO2 at the end of the walk was significantly lower in obese dogs. CONCLUSION AND CLINICAL IMPORTANCE Obesity negatively affects 6MWT performances in dogs. The 6MWT may be used to demonstrate the efficacy of BWL to improve CPF and quality of life in obese dogs. Although BWL induced significant improvement of cardiopulmonary parameters before ideal BW, WD improved until the end of the BWL program.
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Affiliation(s)
- J Manens
- Department for Clinical Sciences, Faculty of Veterinary Medicine, University of Liège, Belgium
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de Laat MA, Clement CK, McGowan CM, Sillence MN, Pollitt CC, Lacombe VA. Toll-like receptor and pro-inflammatory cytokine expression during prolonged hyperinsulinaemia in horses: implications for laminitis. Vet Immunol Immunopathol 2013; 157:78-86. [PMID: 24246153 DOI: 10.1016/j.vetimm.2013.10.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 10/12/2013] [Accepted: 10/18/2013] [Indexed: 12/31/2022]
Abstract
Equine laminitis, a disease of the lamellar structure of the horse's hoof, can be incited by numerous factors that include inflammatory and metabolic aetiologies. However, the role of inflammation in hyperinsulinaemic laminitis has not been adequately defined. Toll-like receptor (TLR) activation results in up-regulation of inflammatory pathways and the release of pro-inflammatory cytokines, including interleukin-6 (IL-6) and tumour necrosis factor-alpha (TNF-α), and may be a pathogenic factor in laminitis. The aim of this study was to determine whether TLR4 expression and subsequent pro-inflammatory cytokine production is increased in lamellae and skeletal muscle during equine hyperinsulinaemia. Standardbred horses were treated with either a prolonged, euglycaemic hyperinsulinaemic clamp (p-EHC) or a prolonged, glucose infusion (p-GI), which induced marked and moderate hyperinsulinaemia, respectively. Age-matched control horses were treated simultaneously with a balanced electrolyte solution. Treated horses developed clinical (p-EHC) or subclinical (p-GI) laminitis, whereas controls did not. Skeletal muscle and lamellar protein extracts were analysed by Western blotting for TLR4, IL-6, TNF-α and suppressor of cytokine signalling 3 (SOCS3) expression. Lamellar protein expression of TLR4 and TNF-α, but not IL-6, was increased by the p-EHC, compared to control horses. A significant positive correlation was found between lamellar TLR4 and SOCS3. Skeletal muscle protein expression of TLR4 signalling parameters did not differ between control and p-EHC-treated horses. Similarly, the p-GI did not result in up-regulation of lamellar protein expression of any parameter. The results suggest that insulin-sensitive tissues may not accurately reflect lamellar pathology during hyperinsulinaemia. While TLR4 is present in the lamellae, its activation appears unlikely to contribute significantly to the developmental pathogenesis of hyperinsulinaemic laminitis. However, inflammation may have a role to play in the later stages (e.g., repair or remodelling) of the disease.
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Affiliation(s)
- M A de Laat
- Department of Physiological Sciences, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - C K Clement
- Department of Physiological Sciences, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - C M McGowan
- Institute of Ageing and Chronic Disease, Faculty of Health and Life Sciences, University of Liverpool, Neston, CH64 7TE, UK
| | - M N Sillence
- Earth, Environmental and Biological Sciences, Queensland University of Technology, Brisbane, Queensland, 4001, Australia
| | - C C Pollitt
- Australian Equine Laminitis Research Unit, School of Veterinary Science, The University of Queensland, Gatton, Queensland, 4343, Australia
| | - V A Lacombe
- Department of Physiological Sciences, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK 74078, USA.
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de Godoy MRC, Swanson KS. COMPANION ANIMALS SYMPOSIUM: Nutrigenomics: Using gene expression and molecular biology data to understand pet obesity1. J Anim Sci 2013; 91:2949-64. [DOI: 10.2527/jas.2012-5860] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- M. R. C. de Godoy
- Department of Animal Sciences, University of Illinois, Urbana, IL 61801
| | - K. S. Swanson
- Department of Animal Sciences, University of Illinois, Urbana, IL 61801
- Division of Nutritional Sciences, University of Illinois, Urbana, IL 61801
- Department of Veterinary Clinical Medicine, University of Illinois, Urbana, IL 61801
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German A. Barking up the wrong tree: What’s the deal with obesity, adiponectin and inflammation in dogs? Vet J 2012; 194:272-3. [DOI: 10.1016/j.tvjl.2012.06.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Accepted: 06/08/2012] [Indexed: 11/17/2022]
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Tvarijonaviciute A, Ceron JJ, Holden SL, Cuthbertson DJ, Biourge V, Morris PJ, German AJ. Obesity-related metabolic dysfunction in dogs: a comparison with human metabolic syndrome. BMC Vet Res 2012; 8:147. [PMID: 22929809 PMCID: PMC3514388 DOI: 10.1186/1746-6148-8-147] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Accepted: 08/22/2012] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Recently, metabolic syndrome (MS) has gained attention in human metabolic medicine given its associations with development of type 2 diabetes mellitus and cardiovascular disease. Canine obesity is associated with the development of insulin resistance, dyslipidaemia, and mild hypertension, but the authors are not aware of any existing studies examining the existence or prevalence of MS in obese dogs.Thirty-five obese dogs were assessed before and after weight loss (median percentage loss 29%, range 10-44%). The diagnostic criteria of the International Diabetes Federation were modified in order to define canine obesity-related metabolic dysfunction (ORMD), which included a measure of adiposity (using a 9-point body condition score [BCS]), systolic blood pressure, fasting plasma cholesterol, plasma triglyceride, and fasting plasma glucose. By way of comparison, total body fat mass was measured by dual-energy X-ray absorptiometry, whilst total adiponectin, fasting insulin, and high-sensitivity C-reactive protein (hsCRP) were measured using validated assays. RESULTS Systolic blood pressure (P = 0.008), cholesterol (P = 0.003), triglyceride (P = 0.018), and fasting insulin (P < 0.001) all decreased after weight loss, whilst plasma total adiponectin increased (P = 0.001). However, hsCRP did not change with weight loss. Prior to weight loss, 7 dogs were defined as having ORMD, and there was no difference in total fat mass between these dogs and those who did not meet the criteria for ORMD. However, plasma adiponectin concentration was less (P = 0.031), and plasma insulin concentration was greater (P = 0.030) in ORMD dogs. CONCLUSIONS In this study, approximately 20% of obese dogs suffer from ORMD, and this is characterized by hypoadiponectinaemia and hyperinsulinaemia. These studies can form the basis of further investigations to determine path genetic mechanisms and the health significance for dogs, in terms of disease associations and outcomes of weight loss.
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Affiliation(s)
- Asta Tvarijonaviciute
- Department of Animal Medicine and Surgery, Veterinary School, RegionalCampus of International Excellence Campus Mare Nostrum, University of Murcia, 30100, Murcia, Spain
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Understanding adiponectin in dogs and cats: A work in progress. Vet J 2012; 193:4-5. [DOI: 10.1016/j.tvjl.2012.05.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2012] [Accepted: 05/07/2012] [Indexed: 11/18/2022]
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Abstract
Veterinarians need to be prepared to provide nutritional advice for healthy pets as well as for pets that are ill. Before instituting a dietary change in any patient, especially an older dog or cat, a nutritional evaluation should be completed. This should include an evaluation of the patient, the current diet, and feeding management. Diets should be appropriate to the unique needs of the individual patient. Many diseases in senior pets are “diet-sensitive” meaning that diet can play a role in managing the effects of the disease. Common examples discussed include cognitive dysfunction of aging, osteoarthritis, and obesity.
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Affiliation(s)
- D P Laflamme
- Nestlé Purina PetCare Research, Checkerboard Square - 2S, St Louis, MO 63164, USA.
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Laflamme DP. Companion Animals Symposium: Obesity in dogs and cats: What is wrong with being fat? J Anim Sci 2011; 90:1653-62. [PMID: 21984724 DOI: 10.2527/jas.2011-4571] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Few diseases in modern pets are diet induced. One possible exception to this is obesity, which is ultimately caused by consuming more calories than needed by the dog or cat. Although fat is the most concentrated and efficiently stored source of calories, and protein least so, an excess of calories from any source will contribute to adiposity. Obesity is an excess of body fat sufficient to result in impairment of health or body function. In people, this is generally recognized as 20 to 25% above ideal BW. This degree of excess is important in dogs as well. A lifelong study in dogs showed that even moderately overweight dogs were at greater risk for earlier morbidity; these dogs required medication for chronic health problems sooner than their lean-fed siblings. The average difference in BW between groups was approximately 25%. Obese cats also face increased health risks, including an increased risk of arthritis, diabetes mellitus, hepatic lipidosis, and early mortality. The risk for development of diabetes increases about 2-fold in overweight cats and about 4-fold [corrected] in obese cats. Altered adipokine secretion appears to be an important mechanism for the link between excess BW and many diseases. Once considered to be physiologically inert, adipose tissue is an active producer of hormones, such as leptin and resistin, and cytokines, including many inflammatory cytokines such as tumor necrosis factor-α, IL-1β and IL-6, and C-reactive protein. The persistent, low-grade inflammation secondary to obesity is thought to play a causal role in chronic diseases such as osteoarthritis, cardiovascular disease, diabetes mellitus, and others. For example, tumor necrosis factor-α alters insulin sensitivity by blocking activation of insulin receptors. In addition, obesity is associated with increased oxidative stress, which also may contribute to obesity-related diseases. Management of obesity involves nutritional modification as well as behavioral modification. Increased protein intake combined with reduced calorie intake facilitates loss of body fat while minimizing loss of lean body mass. Limiting treats to 10% of calorie intake and increasing exercise both aid in successful BW management.
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Affiliation(s)
- D P Laflamme
- Nestle Purina PetCare Research, Checkerboard Square-2S, St. Louis, MO 63164, USA.
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