Determinarea AE a colinesterazei serice Flashcards

1
Q

Care este functia chimica a coliesterazei?

A

catalizeaza reactia de hidroliza a esterilor colinei

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2
Q

Ce tipuri de coliesteraza exista?

A

Acetilcolinesteraza specifica si colinesteraza nestepifica

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3
Q

Care sunt particularitatile acetilcoliesterazei specifice?

A

actioneaza anume asupra acetlcolinei si acetiltiocolinei
abundenta in eritrocite si SN
in ser-doar cantitati mici

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4
Q

Ce organ sintetizeaza colinesteraza?

A

ficat, si elibereaza in ser

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5
Q

care sunt scopurile determinarii AE a colinesterazei

A

diagnostic al afectiunilor hepatice
evaluarea intoxicatiilor cu insecticide organofosforice
evaluarea functiei proteosintetice a ficatului

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6
Q

Ce presupune metoda Birzu?

A

tioclina, obtinuta prin hidroliza butirilcolinei, reactioneaza cu DTNB, obtinandu-se un compus de colare galbena. Aceasta este proportionala cu activitatea colinesterazei serice.

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7
Q

Valorile normale ale colinesterazei serice

A

3000-8000 UI/l

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8
Q

Valori scazute ale colinesterazei serice

A
defiit de sinteza de hepatocit
icter hepatocelular
hipotiroidism
malnutritie in special proteica
tratament de leucemii cu L-asparaginaza
intoxicatii cu insecticide organo-fosforice
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9
Q

Valori scazute ale colinesterazei serice

A

vindecarea unei hepatite acute
sindrom nefrotic
obezitate si diabet, hiperlipemie
pseudocolinesteraza atipica

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