Results 71 to 80 of about 13,523 (239)

Effect of knocking out mouse <i>Slc44a4</i> on colonic uptake of the microbiota-generated thiamine pyrophosphate and colon physiology.

open access: greenAm J Physiol Gastrointest Liver Physiol
Sabui S   +7 more
europepmc   +3 more sources

Thiamine Acquisition Strategies Impact Metabolism and Competition in the Gut Microbe Bacteroides thetaiotaomicron. [PDF]

open access: yes, 2017
Thiamine (vitamin B1) is an essential cofactor for all organisms. Humans primarily acquire thiamine through their diet, and thiamine deficiencies have adverse neurological effects.
Costliow, Zachary A, Degnan, Patrick H
core  

Osmotic, oxidative and salinity stresses upregulate the expressions of Thiamine (vitamin B1) biosynthesis genes (THIC and THI1/THI4) in oil palm (Elaeis guineensis) [PDF]

open access: yes, 2016
Thiamine or vitamin B1 comprises a pyrimidine moiety and a thiazole moiety. Thiamine pyrophosphate (TPP), the active form of thiamine, acts as a cofactor for various major enzymes for example transketolase (TK), α-ketoglutarate dehydrogenase (KGDH) and ...
Abdul Rahman, Nur Syuhadah   +4 more
core   +1 more source

S‐Adenosylmethionine (SAM) hydrolases counter increased SAM epimerisation in thermophilic archaea

open access: yesThe FEBS Journal, EarlyView.
S‐Adenosyl‐l‐methionine (SAM) is a vital enzyme cofactor. Epimerisation at the sulfonium centre of biologically active (SS,SCα)‐SAM is driven by heat, yielding biologically inactive (RS,SCα)‐SAM. Here, two novel archaeal SAM hydrolases from the thermophilic Sulfolobus acidocaldarius and the halophilic Haloferax volcanii are shown to cleave (RS,SCα)‐SAM.
Agnes Bartels   +7 more
wiley   +1 more source

Role of thiamine supplementation in the treatment of patients with heart failure: A double-blind randomized controlled trial

open access: yesHeart India, 2019
Introduction: The role of thiamine supplementation in heart failure (HF) patients has shown conflicting results and has not been adequately studied.
Shamim Iqbal   +7 more
doaj   +1 more source

Covalently bound substrate at the regulatory site triggers allosteric enzyme activation [PDF]

open access: yes, 2008
The mechanism by which the enzyme pyruvate decarboxylase from yeast is activated allosterically has been elucidated. A total of seven three-dimensional structures of the enzyme, of enzyme variants or of enzyme complexes form two yeast species (three of ...
Georg Wille   +5 more
core   +1 more source

Seeing double: the low-carb diet [PDF]

open access: yes, 2013
No abstract ...
Drummond, Russell S.   +4 more
core   +1 more source

Open-chain thiamine analogues as potent inhibitors of thiamine pyrophosphate (TPP)-dependent enzymes

open access: yesOrganic & Biomolecular Chemistry, 2023
A common approach to studying thiamine pyrophosphate (TPP)-dependent enzymes is by chemical inhibition with thiamine/TPP analogues which feature a neutral aromatic ring in place of the positive thiazolium ring of TPP. These are potent inhibitors but their preparation generally involves multiple synthetic steps to construct the central ring.
Alex H. Y. Chan   +2 more
openaire   +2 more sources

Effect of Two Therapeutic Renal Diets on Hormonal and Regulatory Pathways Affecting Calcium Homeostasis in Cats With Early‐Stage Chronic Kidney Disease

open access: yesJournal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT Chronic kidney disease (CKD) is a known risk factor for hypercalcemia in cats. Phosphate‐restricted diets have also been implicated in causing hypercalcemia, in part because phosphate restriction increases the Ca:P ratio. The primary objective of this study was to evaluate the impact of two different therapeutic renal foods on ionized (iCa ...
Jean A. Hall   +4 more
wiley   +1 more source

Diphenyl urea derivatives as inhibitors of transketolase: a structure-based virtual screening. [PDF]

open access: yesPLoS ONE, 2012
Transketolase is an enzyme involved in a critical step of the non-oxidative branch of the pentose phosphate pathway whose inhibition could lead to new anticancer drugs. Here, we report new human transketolase inhibitors, based on the phenyl urea scaffold,
Cristian Obiol-Pardo   +3 more
doaj   +1 more source

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