A capacidade da administração do GHRH em estimular a secreção hipofisária de GH-hormônio de crescimento apoia o conceito de que a deficiência idiopática de GH-hormônio de crescimento é primariamente uma doença do hipotálamo e não da hipófise. O IGF-I atualmente é produzido por meio de engenharia genética por DNA-recombinante. O IGF-I é útil no tratamento de certos tipos de baixa estatura específica, particularmente o nanismo de Laron nos quais nem o GH-hormônio de crescimento ou outro tipo de tratamento é eficaz. Portanto, quando bem indicado por deficiência ou baixa estatura idiopática ou por indicações precisas, é uma substância inigualável e imprescindível para a raça humana.
GH USE IN INFANT, CHILD AND YOUTH WITH HEIGHT BELOW 2.25 DP TO YOUR AGE, HEIGHT LOW COMPROMETED.
THE FDA APPROVED THE USE OF GH IN INFANT, CHILD AND YOUTH WITH LOW STANDARD HEIGHT CLEAR, THAT IS, WITH HEIGHT LINEAR OR LONGITUDINAL IS BELOW 2.25 DP FOR YOUR AGE AND YOUR ADULT HEIGHT IS PROVIDED BELOW NORMAL (1 PERCENTILE OF STATURE ADULT): PHYSIOLOGY-ENDOCRINOLOGY-NEUROENDOCRINOLOGY-GENETICS-ENDOCRINE-PEDIATRICS (SUBDIVISION OF ENDOCRINOLOGY) DR. JOÃO SANTOS CAIO JR. ET DRA. HENRIQUETA VERLANGIERI CAIO.
While GH-growth hormone can increase the longitudinal or linear height of these children, infant and juvenile severely affected, they should not be used in a child and juvenile with predicting adult height within the normal range, but is not a absolute consensus on this situation, because several studies have shown that the vast majority of humans who never get to 100% of the target gene; in general there is a variation where the final height of untreated adult reaches around 85 to 95% of the target gene and the recommended treat even if the pseudo-normal laboratory is within the kits of the graphic form to be considered normal. There are other interconnected problems: the graphics are very challenged by its inaccuracy and have not coincidents several differents protocols. Another problem is the familial mean height, which despite being the secretory apparently within the normal dosage, cannot possibly provide adequate height in considering bone and chronological age and have a below average height, must still be considered chronic diseases, possibly wrong eatings habits, inadequate or exaggerated physical exercises, where eventually the dose may be normal, but it organic and not metabolically coincides with expected standards.
Other factors are the idiopathic dysfunctions that although within normal GH-growth hormone cause growth failure and countless other metabolic, organic, physiological or genetic disruptur falsely that can confuse us. GHRH was isolated, sequenced its DNA synthesized and biologically. He is available for use in diagnosis and treatment. Patients with GHD showed decreased GH secretion or absent after administration of GHRH. However, sporadic doses of GHRH can restore GH secretion, the production of IGF-I and growth in child infant and adolescents with idiopathic GHD. The ability of the administration of GHRH to stimulate secretion of pituitary GH- growth hormone supports the concept that the idiopathic GHD is primarily a disease of the hypothalamus and not the pituitary. IGF-I is currently produced by genetic engineering using DNA-recombinant. IGF-I is useful in the treatment of certain types of particularly low height specifies the Laron dwarfism or where GH-growth hormone or other type of treatment isn’t effective. So when well indicated by deficiency or idiopathic short stature or precise information, is unique and essential substance for the human race.
Dr. João Santos Caio Jr.
Endocrinologia – Neuroendocrinologista
CRM 20611
Dra. Henriqueta V. Caio
Endocrinologista – Medicina Interna
CRM 28930
1. A DGH, e o comprometimento de todo o perfil lipídico já tem sido descrito e associado a uma descompensação de todas as linhagens de colesterol, inclusive com o aumento de peso e comprometimento do IMC–índice de massa corporal nas diversas fases do crescimento e ainda comprometendo adultos que passaram por esta nosologia na época de seu desenvolvimento estatural (altura)...
http://hormoniocrescimentoadultos.blogspot.com
2. O hormônio de crescimento (GH) e o insulin-like growth factor-1 (IGF-1) do eixo GH/IGF-I tem várias funções...
http://longevidadefutura.blogspot.com
3. A terapia de reposição hormonal com hormônio de crescimento (GH) por rDNA recombinante é normalmente administrada a crianças com DGH que atingem uma altura final razoável...
http://imcobesidade.blogspot.com
AUTORIZADO O USO DOS DIREITOS AUTORAIS COM CITAÇÃO
DOS AUTORES PROSPECTIVOS ET REFERÊNCIA BIBLIOGRÁFICA.
Referências Bibliográficas:
Caio Jr, João Santos, Dr.; Endocrinologista, Neuroendocrinologista, Caio,H. V., Dra. Endocrinologista, Medicina Interna – Van Der Häägen Brazil, São Paulo, Brasil; Melmed S, Jameson JL. Disorders of the Anterior Pituitary and Hypothalamus. In: Jameson JL editor. Principles of Endocrinology, New York, McGraw-Hill; 2006. p. 19-56; Roelfsema V, Clark RG. The Growth Hormone and Insulin-Like Growth Factor Axis: Its Manipulation for the Benefit of Growth Disorders in Renal Failure. J Am Soc Nephrol. 2001;12:1297–1306; Bayes-Genis A, Conove, CA, Schwatz RS. The Insulin-Like Growth Factor Axis: A Review of Atherosclerosis and Restenosis. 2000;86:125-30; Elmlinger M, Kuhnel W, Weber MW, Ranke MB. Reference Ranges for Two Automated Chemiluminescent Assays for Serum Insulin-Like Growth Factor 1 (IGF-I) and IGF Binding Protein 3 (IGFBP-3). Clin Chem Lab Med. 2004;42:654-64; Kuhnel W. Growth Diagnostics: “Clinical Relevance of GH, IGF-I and IGFBP-3. Los Angeles (CA): Diagnostic Products Corporation, DPC Technical Report ZB223-B, 2004; Ferry RJ. Gigantism and Acromegaly. eMedicine Specialities; Schneider HJ, Sievers C, Saller B, Wittchen HU, Stalla GK. High Prevalence of Biochemical Acromegaly in Primary Care Patients with Elevated IGF-I Levels. Clin Endocrinol. 2008;69:432-5; Giustina A, Barkan A, Felipe F, Casanueva FC, Frohman L, Ho K, et al. Criteria for Cure of Acromaegaly: A Consensus Statement. J Clin Endocrinol Metab. 2000;85:526-9; Kemp S. Growth Failure. eMedicine Specialities. 2009 September; Ferry RJ. Short Stature. eMedicine Specialities. 2010 July. GH Research Society. Consensus Guidelines for the Diagnosis and Treatment of Growth Hormone (GH) Deficiency in Childhood and Adolescence. J Clin Endocrinol Metab. 2000;85:3990-3; Cohen P, Rogol AD, Howard CP, Bright GM, Kappelgaard A, Rosenfeld RG. Insulin Growth Factor-Based Dosing of Growth Hormone Therapy in Children: A Randomized, Controlled Study. J Clin Endocrinol Metab. 2007;92:2480-6; Ho KKY. Consensus Guidelines for the Diagnosis and Treatment of Adults with GH Deficiency II: A Statement of the GH Research Society in Association with the European Society for Pediatric Endocrinology, Lawson Wilkins Society, European Society of Endocrinology, Japan Endocrine Society, and Endocrine Society of Australia. European Journal of Endocrinology. 2007;157:695–700; Kwan AYM, Hartman ML. IGF-I Measurements in the Diagnosis of Adult Growth Hormone Deficiency. Pituitary. 2007;10:151–7.
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