English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

1. Studies carried out in cell-free rat-liver extracts showed an inhibitory effect of thiamine deficiency on porphyrin synthesis. 2. Extracts of normal and thiamine-deficient rat livers were incubated with the cofactors and substrates of the thiamine pyrophosphate-dependent enzyme, 2-oxoglutarate glyoxylate carboligase. There was a marked inhibition of porphyrin synthesis when the substances were added either individually or together. 3. Thiamine deficiency resulted in a decrease of haemoglobin concentration and catalase activity whereas a rise in tryptophanpyrrolase activity and cytochrome b5 and P450 concentration was observed.

The influence of thiamine deficiency on porphyrin synthesis and porphyrin proteins.