Short stature due to partial GHR deficiency

Short stature due to partial growth hormone receptor (GHR) deficiency is a rare endocrine condition where the body's cells do not respond fully to growth hormone (GH). Growth hormone is a key signal that tells the body to grow, and it works by attaching to a specific protein on cells called the growth hormone receptor. In this condition, the growth hormone receptor does not work as well as it should, but it still has some function — this is why it is called 'partial' deficiency. As a result, children grow more slowly than expected and end up shorter than their peers, but the growth failure is usually less severe than in complete GH receptor deficiency (also known as Laron syndrome). Children with this condition typically have normal or even elevated levels of growth hormone in their blood, but their bodies cannot use it efficiently. They may have low levels of insulin-like growth factor 1 (IGF-1), which is the downstream hormone that actually drives growth in bones and tissues. Common features include short stature that becomes noticeable during childhood, delayed bone maturation, and sometimes a slightly younger-looking facial appearance for their age. The treatment landscape for this condition includes the use of recombinant human growth hormone (rhGH) therapy at higher-than-usual doses, since the body is partially resistant to GH. In some cases, recombinant IGF-1 (mecasermin, brand name Increlex) may be considered. Early diagnosis and treatment can significantly improve final adult height. The condition is sometimes referred to as partial GH insensitivity or partial Laron syndrome.

Bring these to your next appointment

• Q1.How certain is the diagnosis of partial GHR deficiency, and should genetic testing be done to confirm it?,What treatment do you recommend — high-dose growth hormone, IGF-1 therapy, or both?,What is the expected improvement in final adult height with treatment?,How often will my child need blood tests and follow-up visits?,Are there any side effects of treatment I should watch for?,Should other family members be tested for the same genetic change?,Are there any clinical trials or newer treatments available for this condition?

Common questions about Short stature due to partial GHR deficiency