• Somatomedins are a group of proteins produced predominantly by the liver when growth hormones act on target tissue. (wikipedia.org)
  • The liver is thought to be the predominant source of circulating somatomedins. (wikipedia.org)
  • The anabolic effects, meanwhile, are mediated by somatomedin C (insulin-like growth factor I), which is secreted by the liver in response to growth hormone stimulation. (petmd.com)
  • GH stimulates growth indirectly by promoting the liver?s production of somatomedins in response to stimulation, which act directly on bone and soft tissue to cause growth. (biogenex.com)
  • Somatomedins inhibit the release of growth hormones by acting directly on anterior pituitary and by stimulating the secretion of somatostatin from the hypothalamus. (wikipedia.org)
  • Somatomedins are a group of proteins that promote cell growth and division in response to stimulation by growth hormone (GH), also known as somatotropin (STH). (wikipedia.org)
  • In addition to their actions that stimulate growth, somatomedins also stimulate production of somatostatin, which suppresses growth hormone release. (wikipedia.org)
  • Thus, levels of somatomedins are controlled via negative feedback through the intermediates of somatostatin and growth hormone. (wikipedia.org)
  • During short-term administration of human growth hormone (HGH) his response with regard to fasting blood-glucose and free fatty acids, plasma-somatomedin, urinary excretion of calcium, nitrogen, and hydroxyproline was minimal or absent. (bmj.com)
  • These findings suggest that somatomedin-C participates in the growth hormone negative feedback loop with an immediate effect on hypothalamic somatostatin and a delayed effect on the anterior pituitary. (nih.gov)
  • The growth hormone (GH)-releasing hormone (GHRH)-GH-somatomedin axis: evidence for rapid inhibition of GHRH-elicited GH release by insulin-like growth factors I and II. (nih.gov)
  • 7. Relationship between somatomedin-C and growth hormone levels in acromegaly: basal and dynamic evaluation. (nih.gov)
  • 9. Value of growth hormone dynamics and somatomedin C (insulin-like growth factor I) levels in predicting the long-term benefit after transsphenoidal surgery for acromegaly. (nih.gov)
  • The excessive levels of somatomedin C, however, promote protein synthesis and growth in a variety of tissues such as the bone cartilage, soft tissues, especially in the head and neck region. (petmd.com)
  • Laron type d. d. associated with an absent or very low levels of somatomedin C (insulinlike growth factor I) or abnormalities in receptor activity. (theodora.com)
  • Z300059Insulin-like growth factor I, also known as somatomedin C, is the dominant effector of growth hormone and is structurally homologous to proinsulin. (topsan.org)
  • To identify the possible causes of his growth failure, we performed other laboratory tests, including those for hepatic and renal function, thyroid hormones, human growth hormone (hGH), somatomedin C and celiac disease. (biomedcentral.com)
  • There was no significant change in their muscle function, but there was a significant reduction in weight gain and in levels of growth hormone, somatomedin C, hair zinc, serum zinc, and serum LDH. (bmj.com)
  • Somatomedin-C stimulates somatostatin release to a maximum of 390 percent of basal release during short-term (20-minute) incubation of rat hypothalamus. (nih.gov)
  • Insulin secretion had not increased and plasma somatomedin levels remained extremely low. (bmj.com)
  • In particular the role of serum somatomedin and cartilage responsiveness to somatomedin have been examined. (wits.ac.za)
  • somatomedin C) levels in patients with acromegaly. (nih.gov)
  • Plasma somatomedin levels are also reduced. (medscape.com)
  • A radioimmunoassay for plasma somatomedin C is available at Michigan State University -- which can confirm the elevated plasma levels associated with acromegaly -- but this is often impractical. (petmd.com)
  • The cat slowly regained normal plasma somatomedin C levels and the diabetes mellitus resolved after two months. (petmd.com)
  • 4. Evaluation of selective transsphenoidal adenomectomy by endocrinological testing and somatomedin-C measurement in acromegaly. (nih.gov)
  • 13. Somatomedin-C in active and successfully treated acromegaly. (nih.gov)
  • Laboratory tests showed a high level of immunoglobulin E, hypereosinophilia with a normal white blood cell count and a low level of somatomedin C. The patient had had atopic dermatitis resistant to treatment since the age of 6 months. (biomedcentral.com)
  • This includes a lack of generation of somatomedin, which is thought to be the cause of his short stature. (bmj.com)
  • Somatomedins have similar biological effects to somatotropin. (wikipedia.org)