Insulina Flashcards

1
Q

Sustancias que se liberan junto con la insulina (2)

A

Amilina

Péptido-C

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2
Q

Estructura de la insulina

A

Dos cadenas:
A de 20 aa
B de 31 aa
Unidas por puentes disulfuro

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3
Q

Cadena de síntesis de insulina

A

Preproinsulina (110aa)
Proinsulina (84aa)
Insulina (51aa)

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4
Q

Transportador de glucosa insulinodependiente

A

GLUT 4

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5
Q

Estimulantes de la insulina (7)

A
Alta glucemia
Aminoácidos
Gastrina
CCK
Secretina
Glucagón (indirectamente)
SN parasimpático (Ach)
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6
Q

Inhibidores de insulina (5)

A
Baja glucemia
SN simpático (adrenalina)
Somatostatina
Leptina
Ayuno
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7
Q

Transportador de glucosa presente en hígado y páncreas

A

GLUT 2

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8
Q

Transportador de glucosa presente en músculo esquelético y tejido adiposo

A

GLUT 4

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9
Q

Transportador de glucosa presente en enterocitos

A

GLUT 5

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10
Q

Transportador de glucosa de rápida saturación

A

GLUT 1

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11
Q

Transportador de glucosa de neuronas y placenta

A

GLUT 3

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12
Q

El mecanismo de acción de la insulina se lleva acabo a través de la activación de receptores_____

A

alfa

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13
Q

Enzima que activa la insulina en el hígado

A

Glucocinasa

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14
Q

Dos procesos metabólicos de carbohidratos que estimula la insulina

A

Glucogenogénesis

Glucólisis

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15
Q

Proceso metabólico de lipidos que estimula la insulina

A

Lipogénesis

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16
Q

Procesos metabólicos de aminoácidos que estimula la insulina

A

Ciclo de la urea y transporte de aminoácidos