A formação desse complexo de 3 fatores (ternário), aumenta a meia vida do IGF-1 de menos de 10 minutos de eficiência, para mais de 12 horas. Esses detalhes acima nos dão a tranquilidade da eficiência sem comprometimento orgânico em humanos.
HEIGHT FETUS , CHILD , INFANT , YOUTH , GROWTH FACTORS AND INSULIN - FAX 1 2 E IGFBPs ; DR.CAIO JR .
THERE ARE DIFFERENCES IN THE VITAL
FUNCTIONS OF IGF - 1 AND IGF - 2 , IGF - 2 FUNCTION HELD ON GROWTH AND SOMATIC
INTRAUTERINE IGF - 1 DOING THEIR ROLE IN GROWTH PERIOD OF SOMATIC INTRAUTERINE
AND POSTNATAL ; ENDOCRINOLOGY - NEUROENDOCRINOLOGY , PHYSIOLOGY , DR. JOÃO SANTOS
CAIO JR . ET DRA. HENRIQUETA VERLANGIERI CAIO.
The longitudinal growth in greater importance is attached to the growth hormone -GH , as well as external factors in humans there are other factors that are part of the organic metabolic mechanism . In the physiology of the body stand two IGFs , IGF -1 and IGF -2 . IGF - 1 is actually a natural molecular insulin-like structure is also called insulin-like growth factor 1 and the other is the growth factor insulin-like 2 ( IGF - 2 ) . Although not equal exhibit a similarity in structure between them of 70 % and a similarity of 50% at the stage of proinsulin . But there is a difference in their vital functions characterized by an important role in somatic growth , or IGF -2 exerts its functions intrauterine period, however , IGF -1 excels especially in somatic growth , both the intrauterine period , when it is synthesized independently of GH , as in the postnatal period , when the synthesis of IGF - 1 is strict and strictly controlled by growth hormone GH- own . The specific location of the IGF -1 gene is the long arm of chromosome 12 , moreover , the growth of , or somatotropin hormone GH- 191 complex , its synthesis encourages the growth plate itself , which has a paracrine effect ( a paracrine hormone is a molecule produced by a cell for it to act on neighboring cells. paracrine effect has the function of supplying the need for a set of adjacent cells by a high concentration of hormones without compromising other body cells with possible toxicity) , this fact is extremely important , in other words, the growth hormone GH - not affect other cells , so will not compromise the hepatocytes (liver cells), increasing the growth plate by the systemic circulation. In the bloodstream , IGF - 1 circulates bound to two other factors produced in the liver in response to stimulation of growth hormone - GH : a binding protein of insulin-like growth factor 3 (IGFBP3) and acid labile subunit (ALS). The formation of this factor 3 (ternary) complex increases the half life of IGF-1 for 10 minutes efficiency to over 12 hours. These details above give us the peace of efficiency without organic impairment in humans.
Dr. João Santos Caio Jr.
Endocrinologia – Neuroendocrinologista
CRM 20611
Dra. Henriqueta V. Caio
Endocrinologista – Medicina Interna
CRM 28930
Como saber mais:
1. O diagnóstico deve ser baseado na falha da responsividade do GH-hormônio de crescimento (somatotrofina) a estímulos provocativos e a demonstração de responsabilidade normal de outros hormônios da adeno-hipófise ou hipófise anterior... http://hormoniocrescimentoadultos.blogspot.com
2. A deficiência monofásica de GH-hormônio de crescimento em criança, infantil, juvenil assim como o retardo de crescimento também foram observados em criança, infantil, juvenil com privação emocional grave... http://longevidadefutura.blogspot.com
3. A avaliação do crescimento da estatura longitudinal ou linear é uma parte essencial do exame endocrinológico ou neuroendocrinológico focando a propedêutica endócrino-pediatrica (subdivisão da endocrinologia)...
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; Gunnell, David; Miller, LL; Rogers, I; Holly, JM; Alspac Study, Team (11/01/2005). "Association of Insulin-like Growth Factor I and Insulin-like Growth Factor-Binding Protein-3 with Intelligence Quotient Among 8- to 9-Year-Old Children in the Avon Longitudinal Study of Parents and Children". Pediatrics 116 (5): e681. doi:10.1542/peds.2004-2390. PMID 16263982; Welch, D; Dawes, PJ. (2007). "Childhood hearing is associated with growth rates in infancy and adolescence". Pediatr Res 62 (4): 495-8. doi:10.1203/PDR.0b013e3181425869.PMID 17667854; Pierce SB, Costa M, Wisotzkey R, Devadhar S, Homburger SA, Buchman AR, Ferguson KC, Heller J, Platt DM, Pasquinelli AA, Liu LX, Doberstein SK, Ruvkun G (2001). "Regulation of DAF-2 receptor signaling by human insulin and ins-1, a member of the unusually large and diverse C. elegans insulin gene family". Genes & Development 15 (6): 672-86.doi:10.1101 /gad.867301 PMC 312654. PMID 11274053; Cohen P, Peehl DM, Lamson G, Rosenfeld RG (1991). "Insulin-like growth factors (IGFs), IGF receptors, and IGF-binding proteins in primary cultures of prostate epithelial cells". Journal of Clinical Endocrinology and Metabolism 73 (2): 401–7. doi:10.1210 /jcem-73-2-401.PMID 1713219; Lippman ME (1993). "The development of biological therapies for breast cancer". Science259 (5095): 631–2. doi:10.1126/science. 8430312. PMID 8430312; Papa V, Gliozzo B, Clark GM, McGuire WL, Moore D, Fujita-Yamaguchi Y, Vigneri R, Goldfine ID, Pezzino V (1993). "Insulin-like growth factor-I receptors are overexpressed and predict a low risk in human breast cancer". Cancer Research 53 (16): 3736–40. PMID 8339284; Scarth JP (2006). "Modulation of the growth hormone-insulin-like growth factor (GH-IGF) axis by pharmaceutical, nutraceutical and environmental xenobiotics: an emerging role for xenobiotic-metabolizing enzymes and the transcription factors regulating their expression. A review". Xenobiotica 36 (2–3): 119-218. doi:10.1080/ 00498250600621627. PMID 16702112; Woods AG, Guthrie KM, Kurlawalla MA, Gall CM (1998). "Deafferentation-induced increases in hippocampal insulin-like growth factor-1 messenger RNA expression are severely attenuated in middle aged and aged rats". Neuroscience 83 (3): 663–8. doi:10.1016/S0306-4522(97)00539-3. PMID 9483550.
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