Epidemiologic study of relationships between consumption of commercial canned food and risk of hyperthyroidism in cats

Edinboro, Charlotte H.; Scott‐Moncrieff, J. Catharine; Janovitz, Evan B.; Thacker, H. L.; Glickman, Larry T.

doi:10.2460/javma.2004.224.879

Cited by 101 publications

(162 citation statements)

References 37 publications

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“…However, 955 cats were excluded from this study owing to the exclusion criteria, and cats younger than 7-years-old were not examined. Thus, the real prevalence of hyperthyroidism in cats from Warsaw is likely to be rather lower, especially in younger cats, but in comparison with the results of previous research in other regions seems to be very high (2,5,10,17).…”

Section: Discussioncontrasting

confidence: 37%

“…Moreover, the occurrence of hyperthyroidism in cats has increased since 1979 (14). Edinboro et al (5) showed that age-adjusted prevalence increased from 0.1% to 2% in 1978-1997 in the United States. Mooney (11) pays attention to increased longevity in cats; with an increased risk of the occurrence of the disease in older cats.…”

Section: Discussionmentioning

confidence: 99%

“…Other authors also suggested that long-term exposure to polybrominated diphenyl ethers (PBDEs), used as fire retardants, or genetic mutations may cause the development of feline hyperthyroidism (3,15). Increasing age, canned wet feed, fish in the diet, female gender, indoor housing, domestic shorthair breed (or non-pure breed), sleeping on the floor, and lack of deworming have all been described as risk factors of feline hyperthyroidism (2,5,8,13,18,19).…”

Section: Introductionmentioning

confidence: 99%

“…Research on the prevalence of feline hyperthyroidism has been conducted in the United States, United Kingdom, Spain, Germany, Hong Kong, and Japan (2,5,10,12,17).…”

Section: Introductionmentioning

confidence: 99%

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Prevalence of feline hyperthyroidism in mature cats in urban population in Warsaw

Gójska-Zygner¹,

Lechowski

Zygner

2014

Bulletin of the Veterinary Institute in Pulawy

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The purpose of this study was to assess the prevalence of feline hyperthyroidism in a cat population in Warsaw, considering risk factors. The study was conducted between June 2007 and July 2011. Seven-year-old and older cats were examined. Diagnosis of feline hyperthyroidism was based on the results of clinical examination, data from clinical history, and serum concentrations of thyroid hormones. Hyperthyroidism was diagnosed in 20.14% of 417 cats (95% confidence interval (CI): 16.28%-24.01%). Statistically significant risk factors were age (odds ratio (OR) = 1.17; 95% CI: 1.08-1.27), feeding with a commercial wet feed (OR = 6.74, 95% CI: 2.03-22.37), and an indoor lifestyle (OR = 2.25, 95% CI: 1.04-4.84). There were no effects of breed, gender, castration, or the frequency of deworming on the occurrence of hyperthyroidism. Feline hyperthyroidism in Warsaw is a prevalent disease. This probably results from chronic exposure to dietary and environmental factors.

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Section: Discussioncontrasting

confidence: 37%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Research on the prevalence of feline hyperthyroidism has been conducted in the United States, United Kingdom, Spain, Germany, Hong Kong, and Japan (2,5,10,12,17).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Prevalence of feline hyperthyroidism in mature cats in urban population in Warsaw

Gójska-Zygner¹,

Lechowski

Zygner

2014

Bulletin of the Veterinary Institute in Pulawy

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“…Hyperthyroidism in cats is a common endocrine disease of geriatric cats and is the result of autonomous secretion of thyroxine (T 4 ) and triiodothyronine (T 3 ) by the thyroid gland 1. Treatment options include administration of oral antithyroid drugs (methimazole or carbimazole), thyroidectomy, or administration of 131 iodine ( 131 I).…”

mentioning

confidence: 99%

Effect of a Limited Iodine Diet on Iodine Uptake by Thyroid Glands in Hyperthyroid Cats

Scott‐Moncrieff

Heng

Weng

et al. 2015

Veterinary Internal Medicne

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BackgroundThe effect of feeding a limited iodine diet on radioactive iodine uptake in the thyroid glands of hyperthyroid cats is unknown.ObjectivesTo determine how feeding limited dietary iodine affects radioactive iodine uptake by the thyroid glands of hyperthyroid cats.AnimalsEight geriatric cats with spontaneous hyperthyroidism.MethodsProspective study of eight client owned hyperthyroid cats fed a commercially available iodine limited diet for 6 months. Clinical signs were evaluated and TT4 and fT4 were measured during consumption of the diet. Uptake of 123I was determined before and 8–16 weeks after exclusive consumption of the diet.ResultsClinical signs of hyperthyroidism resolved in all cats, but there was no significant increase in body weight. TT4 and fT4 decreased into the reference range by 8–16 weeks in all cats. Mean TT4 before consumption of the diet was 9.7 μg/dL (SD 5.2) and after consumption of the diet was 3.1 μg/dL (SD 0.9). Scintigraphy revealed unilateral uptake of isotope in 5 cats and bilateral uptake in 3 cats. Mean percentage uptake of 123I by the thyroid gland at 8 hours after isotope administration was 16.2 (SD 11.8) before diet consumption and 34.6 (SD 11.7) 8–16 weeks after exclusive consumption of the diet. The percentage increase was variable between cats (38–639%).Conclusions and clinical importanceLimited iodine diets increase iodine uptake in the autonomous thyroid glands of hyperthyroid cats. Further studies are necessary to determine if consumption of a limited iodine diet changes sensitivity of the thyroid gland to 131I treatment.

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Nutritional Management of Endocrine Diseases

Fascetti

Delaney

2012

Applied Veterinary Clinical Nutrition

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Epidemiologic study of relationships between consumption of commercial canned food and risk of hyperthyroidism in cats

Abstract: These findings suggest that the increasing prevalence of feline hyperthyroidism is not solely the result of aging of the cat population and that canned foods may play a role.

Cited by 101 publications

References 37 publications

Prevalence of feline hyperthyroidism in mature cats in urban population in Warsaw

Prevalence of feline hyperthyroidism in mature cats in urban population in Warsaw

Effect of a Limited Iodine Diet on Iodine Uptake by Thyroid Glands in Hyperthyroid Cats

Nutritional Management of Endocrine Diseases

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