D-vitamin Flashcards

1
Q

D-vitamin kaldes for

A

Solskinsvitaminet.

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2
Q

Hvor kommer D vitamin primært fra?

A

Endogen syntese, stimuleret af sollys.

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3
Q

D-vitamin rolle

A
Opretholde tilstrækkelige mængde Ca2+ i blodet.
Gøres ved:
Øgning af Ca2+ absorption fra tarmen.
Mobilisere Ca2+ fra knogler.
Nedsætte tab af Ca2+ via urin.
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4
Q

D-vitamin calcium kanaler

A

Aktiverer apikal calbindin og basolateral Ca2+-ATPase kanal

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5
Q

D-vitamin mobilisering af Ca2+ fra knogler

A

Differentiering og aktivering af osteoklaster.

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6
Q

D-vitamin, nedsat tab med urin

A

Stimulerer Ca2+-pumpe til reabsorption.

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7
Q

D-vitamin immunforsvar

A

Aktiverer dannelse af antimikrobielle peptider fra maktofager
Aktiverer t-lymfocytter

Modkæmper for stærkt inflammatorisk respons.

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8
Q

D-vitamin mangel symptomer

A

Muskelømhed, muskelsvækkelse og træthed.
Knoglesvækkelse
Knogleskørhed.

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