Uma vez que a fase adulta é atingida, a única maneira de manipular a altura ou estatura longitudinal ou linear é modificando o comprimento do osso através de distração osteogênica. Mas diversas pesquisas clínicas tem demonstrado que tem sido usado, a fim de retardar a fusão das epífises, um agonista do GnRH em estudos clínicos com variados índices de sucesso, além de substâncias como inibidores da Aromatase que promovem um ganho de um tempo maior com o retardo da puberdade e dificulta o fechamento da cartilagem de crescimento ou placa epifisária ou placa de crescimento, entretanto, além da experiência profissional na manipulação desta terapêutica relativamente nova, temos que ter a consciência que terminada a puberdade, as terapias fisiológicas são aceitáveis como ajuda, as demais são agressivas e desaconselhadas para pessoas que já passaram por todas as fases e suas cartilagens de crescimento estão consolidadas por serem adultas, o que reforça o início precoce de qualquer terapêutica sendo aconselhada para que ocorra como primeira opção e este fato está ganhando espaço no meio científico e serve de orientação profissional.
GH HAS BEEN COMBINED WITH OTHER SUBSTANCES FOR ITS POSITIVELY IMPACT ON HEIGHT LEVERAGE IN CHILD AND YOUTH.
GH-GROWTH HORMONE HAS BEEN USED IN COMBINATION WITH SEVERAL POLLS AGONISTS SUBSTANCES IN ORDER TO POSITIVELY IMPACT ON RESULTS OF TREATMENT FOR LOW HEIGHT IN CHILD, INFANT, YOUTH AND TEEN WITH GOAL TO COMPLETE PHASE AND POTENTIATE PUBERTY SETTING THE STAGE ADULT MORE ADEQUATE: PHYSIOLOGY-ENDOCRINOLOGY-NEUROENDOCRINOLOGY-GENETICS-ENDOCRINE-PEDIATRICS (SUBDIVISION OF ENDOCRINOLOGY): DR. JOÃO SANTOS CAIO JR. ET DRA. HENRIQUETA VERLANGIERI CAIO.
GH was combined with other substances in order to maximize its impact on the stature.
In patients diagnosed late, which has already entered puberty and apparently have little time to submit a response to GH-growth hormone before the fusion of the epiphyseal bone or cartilage growth plates lead to cessation of growth by closure of epiphyseal cartilage. The epiphysis is rounded end of a long bone in its articulation with the adjacent bone (s). Between the epiphysis and diaphysis (the long central section of the long bone) lies the metaphysis, including the epiphyseal plate (growth plate). Overall, the epiphysis is covered with articular cartilage; below which is a coverage area of the growth plate known as the subchondral bone. The epiphyseal plate (growth plate or, physis, or growth cartilage) is a hyaline cartilage plate at each end of the metaphysis of a long bone. The plate is found in children and adolescents; in adults who have stopped growing, the plate is replaced by a consolidated similar to bone epiphyseal line. Endochondral ossification is responsible for the initial development of bone from cartilage in the uterus and infants and the longitudinal long bone growth in the growth plate. The plate chondrocytes are under constant division by mitosis. These daughters cells toward the epiphysis, while older cells are pushed to the shaft. As the older chondrocytes degenerate, osteoblasts ossify the remains to form new bone. At puberty the increased levels of estrogen in males and females, leads to increased apoptosis of chondrocytes in the epiphyseal plate. The depletion due to apoptosis of chondrocytes causes a decrease in ossification and growth slows and then stops, when all of became cartilage replacement by bone, leaving only a thin epiphyseal scar then disappears. Once the adult stage is reached, the only way to manipulate the height or longitudinal linear or modifying the height and length of the bone is by distraction osteogenesis.
However various clinical studies have demonstrated that has been used in order to delay the fusion of the epiphyses a GnRH agonist in clinical trials with varying success rates, as well as substances such as aromatase inhibitors that provide a higher gain with time delayed puberty and impair closure of growth plates or epiphyseal plate or growth plate, however besides professional experience in handling this relatively new therapy, we have to be aware that finished puberty, physiological therapies are acceptable as aid, others are aggressive and discouraged for people who have gone through all stages and are consolidated their growth cartilage by being adult, which reinforces early initiation of any therapy being advised that occurs as a first option and this fact is gaining ground in scientific means serves the professional guidance.
Dr. João Santos Caio Jr.
Endocrinologia – Neuroendocrinologista
CRM 20611
Dra. Henriqueta V. Caio
Endocrinologista – Medicina Interna
CRM 28930
Como saber mais:
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2. Este fato é reforçado pelos resultados que já no momento do nascimento, e durante toda a infância, a maturação esquelética é retardada, assim como é o crescimento dos órgãos...
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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; Allen JP, Land D. Attachment in adolescence. In: Cassidy J, Shaver PR, editors. Handbook of attachment: Theory, research, and clinical applications. New York: Guilford; 1999. pp. 319–335; BeLue R, Francis LA, Colaco B. Mental health problems and overweight in a nationally representative sample of adolescents: Effects of race and ethnicity. Pediatrics. 2009; 123 :697–702. doi: 10.1542/peds.2008-0687; Bolton-Smith C, Woodward M, Tunnstall-Pedoe H, Morrison C. Accuracy of the estimated prevalence of obesity from self reported height and weight in an adult Scottish population. Journal of Epidemiology and Community Health. 2002; 54 :143–148; Brener ND, McManus T, Galuska DA, Lowry R, Wechsler H. Reliability and validity of self-reported height and weight among high school students. Journal of Adolescent Health. 2003; 32 :281–287. doi: 10.1016/S1054-139X(02)00708-5; Caruthers AS, Van Ryzin MJ, Dishion TJ. Preventing high risk sexual behavior in early adulthood with family interventions in adolescence. Prevention Science (in press); Collins L, Murphy S, Bierman K. A conceptual framework for adaptive preventive interventions.Prevention Science. 2004; 5 :185–196. doi: 10.1023/B:PREV.0000037641.26017.00; Connell A, Dishion TJ. Reducing depression among at-risk early adolescents: Three-year effects of a family-centered intervention embedded within schools. Journal of Family Psychology. 2008; 22 :574–585. doi: 10.1037/0893-3200.22.3.574; Danielsson P, Svensson V, Kowalski J, Nyberg G, Ekblom O, Marcus C. Importance of age for 3-year continuous behavioral obesity treatment success and dropout rate. Obesity Facts. 2012; 5 :34–44. doi: 10.1159/000336060; Davis M, Gance-Cleveland B, Hassink S, Johnson R, Paradis G, Resnicow K. Recommendations for prevention of childhood obesity. Pediatrics. 2007; 120 :S229–S253; Davison KK, Birch LL. Childhood overweight: A contextual model and recommendations for future research. Obesity Reviews. 2001; 2 :159–171.
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