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Melanozyten/en: Unterschied zwischen den Versionen

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Melanocytes are a type of dendritic cells that produce the brown-black [[melanin]]. This is delivered in the form of so-called melanosomes to the neighbouring skin cells (keratinocytes).
 
Melanocytes are a type of dendritic cells that produce the brown-black [[melanin]]. This is delivered in the form of so-called melanosomes to the neighbouring skin cells (keratinocytes).
  
Die Regulation der Melaninproduktion erfolgt über die UV-Strahlung und das [[Melanozyten stimulierendes Hormon|Melanozyten-stimulierende Hormon]] (MSH), Melanotropin aus der [[Hypophyse]]. So wird zum Beispiel bei Morbus Addison u.a. vermehrt MSH produziert, was sich in einer verstärkten Hautfärbung zeigt. Das Melanin, die braune Hautfarbe, hat eine Schutzwirkung gegen UV-Licht. Wird die Haut von der Sonne bestrahlt, wird es verstärkt gebildet. Dadurch reichert sich die bestrahlte Körperstelle mit Pigment an und es entsteht eine Bräunung der Haut.  
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Melanin production is regulated by UV radiation and the [melanocyte stimulating hormone melanocyte stimulating hormone]. (MSH), melanotropin from the [[pituitary]]. In Addison's disease, for example, MSH is increasingly produced, which is reflected in increased skin coloration. Melanin, the brown skin colour, has a protective effect against UV light. If the skin is irradiated by the sun, it is formed more intensively. This enriches the irradiated part of the body with pigment and the skin tans.  
  
 
Fehlt das [[Enzym]], das diesen Vorgang anstößt, führt dies zu Albinismus.
 
Fehlt das [[Enzym]], das diesen Vorgang anstößt, führt dies zu Albinismus.
  
 
https://de.wikipedia.org/wiki/Melanozyt  <sub>([https://de.wikipedia.org/wiki/Wikipedia:Lizenzbestimmungen_Commons_Attribution-ShareAlike_3.0_Unported Wikipedia CC-by-sa-3.0])</sub>
 
https://de.wikipedia.org/wiki/Melanozyt  <sub>([https://de.wikipedia.org/wiki/Wikipedia:Lizenzbestimmungen_Commons_Attribution-ShareAlike_3.0_Unported Wikipedia CC-by-sa-3.0])</sub>

Version vom 16. April 2019, 21:59 Uhr

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Melanocytes are a type of dendritic cells that produce the brown-black melanin. This is delivered in the form of so-called melanosomes to the neighbouring skin cells (keratinocytes).

Melanin production is regulated by UV radiation and the [melanocyte stimulating hormone melanocyte stimulating hormone]. (MSH), melanotropin from the pituitary. In Addison's disease, for example, MSH is increasingly produced, which is reflected in increased skin coloration. Melanin, the brown skin colour, has a protective effect against UV light. If the skin is irradiated by the sun, it is formed more intensively. This enriches the irradiated part of the body with pigment and the skin tans.

Fehlt das Enzym, das diesen Vorgang anstößt, führt dies zu Albinismus.

https://de.wikipedia.org/wiki/Melanozyt (Wikipedia CC-by-sa-3.0)