Results 51 to 60 of about 39,911 (165)

A new branch of mammalian vitamin B6 metabolism: AKR1C‐mediated conversion of pyridoxal to pyridoxine and 4‐pyridoxolactone

open access: yesThe FEBS Journal, EarlyView.
Pyridoxal 5′‐phosphate (PLP) homeostasis relies on salvage enzymes, yet key metabolic branches remain undefined. We identify AKR1C isozymes as previously undescribed contributors that convert pyridoxal into pyridoxine or 4‐pyridoxolactone through reductase and dehydrogenase activities.
Nayu Kito   +8 more
wiley   +1 more source

A distinct gene expression mechanism for d‐amino acid utilization in hyperthermophilic archaeon Pyrococcus horikoshii

open access: yesThe FEBS Journal, EarlyView.
The genes PH0137, PH0138, and PH0140 form a cluster in the genome of Pyrococcus horikoshii. The PH0140 gene encodes a transcription factor identified as a d‐amino acid‐responsive regulatory protein (DARP). In feast mode, l‐Ile‐bound DARP binds to the promoter and represses transcription of PH0137 and PH0138. In famine mode, DARP binds to d‐allo‐Ile and
Ryushi Kawakami   +6 more
wiley   +1 more source

Identification of atropine-and P2X1 receptor antagonist-reistant, neurogenic contractions of the urinary bladder

open access: yes, 2007
Acetylcholine and ATP are excitatory cotransmitters in parasympathetic nerves. We used P2X1 receptor antagonists to further characterize the purinergic component of neurotransmission in isolated detrusor muscle of guinea pig urinary bladder.
Gallagher, G.   +7 more
core   +1 more source

Recent advances of emergent extraction technologies to enhance bioactive compounds extraction of microalgae—An overview towards application in cosmetics

open access: yesInternational Journal of Cosmetic Science, EarlyView.
Microalgae extracts show immense potential in cosmetics for their bioactivities; emerging extraction techniques enhance bioactive compound yield from microalgae. Abstract Microalgae have attracted significant interest in numerous sectors, particularly in the cosmetic industries, owing to their rich composition of bioactive compounds. This paper aims to
Alireza Mousakhani Ganjeh   +5 more
wiley   +1 more source

De novo stolon organogenesis in potato leaf callus elicited by Agrobacterium tumefaciens stimulus

open access: yesJournal of Integrative Plant Biology, EarlyView.
Agrobacterium tumefaciens triggers stolon regeneration from potato leaf callus independent of T‐DNA insertion, suggesting a strategy to reprogram callus identity and expand the potential of tissue regeneration. ABSTRACT Plant cells can undergo cellular reprogramming, enabling pluripotent callus formation from excised leaves.
Seung Yong Shin   +7 more
wiley   +1 more source

Maintenance of cellular vitamin B 6 levels and mitochondrial oxidative function depend on pyridoxal 5′-phosphate homeostasis protein [PDF]

open access: yes, 2023
Recently, biallelic variants in PLPBP coding for pyridoxal 5'-phosphate homeostasis protein (PLPHP) were identified as a novel cause of early-onset vitamin B 6-dependent epilepsy. The molecular function and precise role of PLPHP in vitamin B 6 metabolism
Houten, Sander M   +11 more
core  

Reconfiguring biofortification strategies to transform food systems and address micronutrient deficiency of the 21st century

open access: yesJournal of Integrative Plant Biology, EarlyView.
This review explores how to make staple foods and horticultural crops more nutritious, including how artificial intelligence‐based screening of gene banks helps deploy nutritionally rich germplasm into breeding. Genome editing can help develop crops richer in minerals, vitamins, and health‐promoting compounds, supporting healthier diets and more ...
Rhowell Jr. N. Tiozon   +2 more
wiley   +1 more source

Modification of brain glutamate dehydrogenase isoproteins with pyridoxal 5′-phosphate

open access: yes, 1996
Two soluble forms of brain glutamate dehydrogenase isoproteins were inactivated by pyridoxal 5′-phosphate. Restoration of catalytic activity can be accomplished by dialysis and addition of an excess of cysteine or lysine.
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core   +1 more source

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

Do We Need to Monitor B‐Vitamins and Homocysteine During Initiation of Foslevodopa/Foscarbidopa Therapy?

open access: yes
Movement Disorders, EarlyView.
Aida Shaghaghi‐Zadeh   +8 more
wiley   +1 more source

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