Brothers with ectodermal dysplasia
Numéro d’image : 11589400
| MODEL RELEASED. Boys with the genetic condition ectodermal dysplasia. Two young brothers aged 4 years (left) and 2 1/2 years,both of whom have X-linked hypohidrotic ectodermal dysplasia (HED). Ectodermal dysplasia (ED) describes a group of developmental conditions affecting the ectoderm,the layer of cells that form the skin and nervous system. Typical symptoms include very fine hair,thin skin,missing or mis-shapen teeth and high susceptibility to eczema and asthma. In HED,there is the added complication that the sufferer has a reduced capacity to sweat. As sweating is the main way the body loses heat,particular care must be taken to prevent hyperthermia,especially in the summer. X-linked HED results from a mutaion of the EDA gene on the X chromosome. Males only need one copy of this to have the condition,but are unable to pass it on to their children,the mother is the carrier | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library |
| Taille de l’image : | 4384 px × 3986 px |
| Model Release : | Disponible |
| Property Release : | Non requis |
| Restrictions : | - |
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