Biomaterial Database

Disorders of the equine thyroid gland. 2011

Babetta A Breuhaus

Department of Clinical Sciences, North Carolina State University, 4700 Hillsborough Street, Raleigh, NC 27606, USA. Betta_breuhaus@ncsu.edu

Regulatory control of the thyroid gland in horses is similar to other species. Clinical signs of hypothyroidism in adult horses are minimal. Several drugs and physiologic and pathophysiological states can cause circulating thyroid hormone concentrations to be low without actual pathology of the thyroid gland. Thus, nonthyroidal factors must be ruled out before a diagnosis of hypothyroidism can be made. Thyroid hormone supplementation seems to be well tolerated, even in euthyroid horses. Neonatal foals have very high circulating thyroid hormone concentrations, and deficiencies result in significant clinical signs. Unlike in adults, two syndromes of hypothyroidism are well described in foals.

UI	MeSH Term	Description	Entries
D007037	Hypothyroidism	A syndrome that results from abnormally low secretion of THYROID HORMONES from the THYROID GLAND, leading to a decrease in BASAL METABOLIC RATE. In its most severe form, there is accumulation of MUCOPOLYSACCHARIDES in the SKIN and EDEMA, known as MYXEDEMA. It may be primary or secondary due to other pituitary disease, or hypothalamic dysfunction.	Central Hypothyroidism,Primary Hypothyroidism,Secondary Hypothyroidism,TSH Deficiency,Thyroid-Stimulating Hormone Deficiency,Central Hypothyroidisms,Deficiency, TSH,Deficiency, Thyroid-Stimulating Hormone,Hormone Deficiency, Thyroid-Stimulating,Hypothyroidism, Central,Hypothyroidism, Primary,Hypothyroidism, Secondary,Hypothyroidisms,Primary Hypothyroidisms,Secondary Hypothyroidisms,TSH Deficiencies,Thyroid Stimulating Hormone Deficiency,Thyroid-Stimulating Hormone Deficiencies
D008297	Male		Males
D003937	Diagnosis, Differential	Determination of which one of two or more diseases or conditions a patient is suffering from by systematically comparing and contrasting results of diagnostic measures.	Diagnoses, Differential,Differential Diagnoses,Differential Diagnosis
D005260	Female		Females
D006734	Horse Diseases	Diseases of domestic and wild horses of the species Equus caballus.	Equine Diseases,Disease, Equine,Disease, Horse,Diseases, Equine,Diseases, Horse,Equine Disease,Horse Disease
D006736	Horses	Large, hoofed mammals of the family EQUIDAE. Horses are active day and night with most of the day spent seeking and consuming food. Feeding peaks occur in the early morning and late afternoon, and there are several daily periods of rest.	Equus caballus,Equus przewalskii,Horse, Domestic,Domestic Horse,Domestic Horses,Horse,Horses, Domestic
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D013959	Thyroid Diseases	Pathological processes involving the THYROID GLAND.	Disease, Thyroid,Diseases, Thyroid,Thyroid Disease
D013960	Thyroid Function Tests	Blood tests used to evaluate the functioning of the thyroid gland.	Jostel's TSH Index,Jostel's Thyrotropin Index,Protein-Bound Iodine Test,SPINA-GD,SPINA-GT,Secretory Capacity of the Thyroid Gland,Sum Activity of Peripheral Deiodinases,Thyrotroph Thyroid Hormone Sensitivity Index,Thyroid Gland Function Tests,Function Test, Thyroid,Iodine Test, Protein-Bound,Jostel TSH Index,Jostel Thyrotropin Index,Jostel's TSH Indices,Jostels TSH Index,Jostels Thyrotropin Index,Protein Bound Iodine Test,Protein-Bound Iodine Tests,TSH Index, Jostel's,Test, Protein-Bound Iodine,Test, Thyroid Function,Thyroid Function Test,Thyrotropin Index, Jostel's
D013961	Thyroid Gland	A highly vascularized endocrine gland consisting of two lobes joined by a thin band of tissue with one lobe on each side of the TRACHEA. It secretes THYROID HORMONES from the follicular cells and CALCITONIN from the parafollicular cells thereby regulating METABOLISM and CALCIUM level in blood, respectively.	Thyroid,Gland, Thyroid,Glands, Thyroid,Thyroid Glands,Thyroids