Thiamin维生素 B1

TPP coenzyme

Stop 1/5

TPP 辅酶

Once B1 enters the body, it's converted to thiamin pyrophosphate (TPP). TPP isn't fuel — it's an indispensable tool-head for several key enzymes.

The three most important targets:

1. Pyruvate dehydrogenase complex (PDC): converts pyruvate from glycolysis into acetyl-CoA, which enters the cycle. When B1 is deficient, this step jams — carbon from glucose can't enter mitochondrial oxidation
2. Alpha-ketoglutarate dehydrogenase: a step in the TCA cycle, also requiring TPP
3. Transketolase: in the pentose phosphate pathway, linked to nucleotide synthesis and NADPH production

Read story Open mechanism

本站提供科普与一般性建议，不替代医师诊断或处方；有症状或正在服药请咨询合格医师。 Educational content, not medical advice — consult a clinician for diagnosis or treatment.

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Thiamin维生素 B1

TPP coenzyme

Stop 1/5

TPP 辅酶

Once B1 enters the body, it's converted to thiamin pyrophosphate (TPP). TPP isn't fuel — it's an indispensable tool-head for several key enzymes.

The three most important targets:

1. Pyruvate dehydrogenase complex (PDC): converts pyruvate from glycolysis into acetyl-CoA, which enters the cycle. When B1 is deficient, this step jams — carbon from glucose can't enter mitochondrial oxidation
2. Alpha-ketoglutarate dehydrogenase: a step in the TCA cycle, also requiring TPP
3. Transketolase: in the pentose phosphate pathway, linked to nucleotide synthesis and NADPH production

Read story Open mechanism

本站提供科普与一般性建议，不替代医师诊断或处方；有症状或正在服药请咨询合格医师。 Educational content, not medical advice — consult a clinician for diagnosis or treatment.