Metabolismo de cuerpos cetónicos Flashcards

1
Q

A partir de 2 Acetil-CoA se producen

A

Acetoacil por la enzima tiolasa

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2
Q

A partir de acetoacil se produce

A

Beta-Hidroxi-Beta-Metilglutariol CoA por la enzima:

HMG CoA sintasa

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3
Q

Beta-Hidroxi-Beta-Metilglutariol CoA pasa a

A

Acetil Acetato por la enzima HMG CoA Liasa

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4
Q

Acetil Acetato pasa a

A

Acetona por la acetoacetato descarboxilasa

D-betahidroxibutirato por la enzima D-Betahidroxibutirato deshidrogenasa y libera NAD (Consume 1 H)

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5
Q

Consiste de:

A

Cetogénesis y Cetólisis (ambas son reversibles)

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6
Q

Ayuno de 12 horas:

A

baja glucosa, el glucagon estimula la glucogenólisis hepática

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7
Q

Ayuno de 24 horas

A

Bajo glucagon y baja glucosa, se estimula gluconeogenesis

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8
Q

Principales cuerpos cetónicos

A

Acetoacetato, Beta-Hidroxibutirato y Acetona

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9
Q

Rate limiting step

A

enzima HMG-CoA sintasa

Pasa de Acetoacetil-CoA a HMG-CoA (3-Hidroxi-3-metil-glutaril-CoA)

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10
Q

las estatinas inhiben

A

La producción de colesterol en específcio a la enzima HMG-CoA reductasa

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