Hipotiroidismo en rumiantes
Hipotiroidismo en rumiantes
Authors
Matamoros, Roberto
Contreras, P.A.
Wittwer, F.
Mayorga, M.I
Contreras, P.A.
Wittwer, F.
Mayorga, M.I
Authors
Date
2012-02-25
Datos de publicación:
http://dx.doi.org/10.4067/S0301-732X2003000100001
Keywords
Rumiantes - Hipotiroidismo - Tiroides - Bovino
Collections
Abstract
La glándula tiroides está presente en todos los vertebrados y es única entre las glándulas endocrinas en que almacena sus productos de secreción (hormonas tiroidales) extracelularmente. Estas hormonas juegan un papel indispensable en una variedad de reacciones bioquímicas en tejidos periféricos como el músculo esquelético, cardíaco, el hígado y el riñón los que colectivamente controlan la actividad metabólica basal del organismo. A pesar de que muchos procesos fisiológicos en rumiantes requieren una actividad normal de la glándula tiroides, generalmente se ha resaltado su rol principalmente en la fisiología reproductiva. Sin embargo, en la mayoría de la literatura actual, la síntesis y acciones de las hormonas tiroidales en la fisiología de los rumiantes se ha extrapolado del conocimiento extenso que se tiene en la especie canina y felina. Por lo tanto, este trabajo pretende entregar información actualizada sobre la fisiología endocrina de la glándula tiroides en los rumiantes, enfatizando su rol en el bovino y ovino y las causas mas comunes de hipotiroidismo clínico en los rumiantes domésticos.
The thyroid gland is present in all vertebrates and it is unique among endocrine glands in that it stores its secretory products (the thyroid hormones) extracellularly. These hormones play an indispensable role in a variety of biochemical reactions at the level of peripheral tissues such as the skeletal and heart muscle, the liver and the kidney which collectively control the basal metabolic activity of the organism. Although many physiologic processes in ruminant require a normal activity of the thyroid gland, their role has generally been emphasized in the reproductive physiology. However, in most of the current literature, the synthesis and mechanism of action of the thyroid hormones in the ruminant physiology have been extrapolated of the extensive knowledge that we have in the canine and feline species. This work seeks to give up-to-date information on the endocrine physiology of the ruminant thyroid gland, emphasizing its role in the bovine and ovine species and the more common causes of clinic hypothyroidism in domestic ruminants.
The thyroid gland is present in all vertebrates and it is unique among endocrine glands in that it stores its secretory products (the thyroid hormones) extracellularly. These hormones play an indispensable role in a variety of biochemical reactions at the level of peripheral tissues such as the skeletal and heart muscle, the liver and the kidney which collectively control the basal metabolic activity of the organism. Although many physiologic processes in ruminant require a normal activity of the thyroid gland, their role has generally been emphasized in the reproductive physiology. However, in most of the current literature, the synthesis and mechanism of action of the thyroid hormones in the ruminant physiology have been extrapolated of the extensive knowledge that we have in the canine and feline species. This work seeks to give up-to-date information on the endocrine physiology of the ruminant thyroid gland, emphasizing its role in the bovine and ovine species and the more common causes of clinic hypothyroidism in domestic ruminants.