T3 hormone

• [DOC File]PHYSIOLOGY – ENDOCRINE SYSTEM

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  T3 is converted to T4 in the periphery. T4 is more metabolically active than T3. Thyroglobulin is synthesized in thyroid cells. ... Thyroid hormone stimulates increased glucose absorption & hepatic glycogenolysis. Exercise stimulat3es glucose entry into skeletal muscle & increase skeletal muscle insulin sensitivity.

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• THE PITUITARY HORMONES AND THEIR CONTROL

  A. gonadotropin-releasing hormone (GnRH), from the hypothalamus. a.k.a. luteinizing hormone-releasing hormone (LHRH), pulsatile release. B. follicle-stimulating hormone (FSH) and luteinizing hormone (LH), both from the anterior pituitary in response to releasing hormone from the hypothalamus

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• [DOC File]Section 3: Thyroid Tests for the Clinical Biochemist and ...

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  Thyroxine (T4) is the principal hormone secreted by the thyroid gland. All the T4 in the circulation is derived from thyroidal secretion. In contrast, only about 20% of circulating triiodothyronine (T3) is of thyroidal origin. Most of the T3 in blood is produced enzymatically in nonthyroidal tissues by 5’-monodeiodination of T4 (121).

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• [DOC File]Chapter 18: The Endocrine System

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  TSH stimulates the synthesis & secretion of T3 and T4 by the thyroid gland. Promotes release - thyrotropin releasing hormone (TRH) (Fig 18.12) Inhibits release - growth hormone inhibiting hormone (GHIH, somatostatin) and negative feedback by elevated levels of T3 and T4 . Follicle Stimulating Hormone (FSH) FSH functions

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• [DOC File]Name

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  SS Growth hormone inhibiting h. (somatostatin) also SRIF Hypothalamus (periVN) pep cAMP opposite of GHRH Inhibits secretion of growth hormone and TSH PIF. DA Prolactin-inhibiting factor (dopamine) Hypothalamus (AN) tyrosine ↑prolactin Inhibits secretion of prolactin TSH Thyroid stimulating h. Ant. pituitary αβ-pep cAMP ↑ TRH ↓ T3,T4 ...

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• [DOCX File]WordPress.com

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  Thyroid Hormone Physiological function: -T3 and T4 are both active independent of each other but can collaborate in function.-T4 can pass through Placenta membrane and converts to T3 to control the development of the _____, _____, and _____

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• [DOC File]Thyroid Hormones - Angelfire

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  T4 binds more tightly to serum binding proteins than T3 resulting in a lower clearance rate and longer half life. (6-7 days for T4 vs. 1 day for T3). T4 is the major hormone. About 40% of the T4 is converted to T3 by a 5’-deiodinase present in many tissues of the body, especially liver, kidney and the anterior pituitary. T3 is more potent.

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• [DOC File]Hypothalamus and Pituitary Hormones

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  TRH to Anterior Pituitary to TSH to THYROID to T4, T3 and calcitonin. GnRH to AP to FSH and LH to Testes or Ovaries. Men: FSH to sertoli cells to sperm. Women: LH/FSH to ovaries, corpus luteum and placenta ... Hormone Pharmacological agent Clinical uses GH Somatrem or Somatropin Pituitary dwarfism, osteoporosis Somatostatin Octreotide ...

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• [DOCX File]A2.3.2.HormonesWild

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  This loop must include the pituitary gland and the hypothalamus as well as the names of important hormones. Make sure to show how hormones exert feedback to maintain proper thyroid function. Draw arrows to and from important glands and hormones. Think about how the levels of one hormone may impact the release (or lack thereof) of another hormone.

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• [DOC File]BIO-IDENTICAL HORMONES

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  The importance of T3 and T4 and TSH (thyroid stimulating hormone from the pituitary) needs to be looked at differently to the way most doctors are taught. A partial deficiency in thyroid hormones allows life, but is a life often miserable with complaints and physical signs typical for the disease.

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• [DOC File]CHAPTER 13: ENDOCRINE SYSTEM

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  vi. hormone summary table (keyed on page --- of this outline) hormone secreted by what gland? targets what gland or organ or tissue? effect(s) at target site gh tsh prl acth lh fsh t3/t4 aldosterone cortisol estrogen progesterone testosterone adh ot pth calcitonin insulin glucagon epinephrine norepinephrine melatonin thymosin

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• [DOC File]HYPOTHYROIDISM - Modern Homoeopathy

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  The major constitutent of colloid is the large glycoprotein known as thyroglobulin, which contains the thyroid hormone. Normal Weight: about 25 grams. Thyroid Hormones: 1. Thyroxine or Tetraiodothryronine or T4. 2. Triiodothyronine or T3. 3. Calcitonin: an important hormone for calcium metabolism Formation and Secretion of T3 and T4

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• [DOC File]Thyroid Hormone Therapy: Cutting the Gordian Knot

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  The test T3 could detect T3 but not T4; The test T4 could detect only T4, and the PBI test could detect . neither. All the tests developed over the years seem to fail to do what counts, which is to determine the amount . of hormone stored in the cells of the body. That is, the hormone’s actual expression at the cell receptor . sites is most ...

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• [DOC File]THYROID HORMONES – pathology demonstrates very obvious S&S ...

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  T3 (3,5,3-triiodothyronine) Represents about 10% of the thyroid hormone by the thyroid. Is about 4x as active or potent as T4. Is found in the blood in much lower amounts then T3. T3 is the active form of thyroid hormone. Has a much shorter half-life than T4. About 80% of serum concentration results from conversion of T4 to T3.

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• [DOC File]Endocrine System Physiology- Thyroid Hormones

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  T3 is more biologically active than T4 and its effects are observed before those of T4 and it is believed that T4 is converted to T3 by an enzyme called deiodase whose function is to remove one of the iodine atoms before the thyroid hormone becomes active. Thus T4 is regarded as a pro-hormone, meaning that it is a hormone precursor.

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