Results 81 to 90 of about 62,836 (259)

Maternal Lead Exposure Induces Glandular Alterations in the Salivary Glands of Rat Male Offspring

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Lead (Pb) is a widely distributed environmental pollutant that is highly noxious due to its toxicokinetic characteristics. Pb exposure can damage vital organ systems, including the central nervous and stomatognathic systems. As salivary glands play an important role in oral homeostasis, this study aimed to investigate the effects of maternal ...
Rayssa Maitê Farias Nazário   +8 more
wiley   +1 more source

Methaemoglobinaemia: From pathophysiology to contemporary clinical management

open access: yesBritish Journal of Haematology, EarlyView.
Summary Methaemoglobin (MetHb) is an oxidised form of haemoglobin (Hb) unable to bind oxygen. Raised levels of MetHb reduce the blood's oxygen‐carrying capacity, causing potentially severe hypoxaemia and possible death. The condition arises from three main pathologies: mutations in globin genes causing Haemoglobin‐M, inherited deficiency of the enzyme ...
Alexander J. Twine, David C. Rees
wiley   +1 more source

The WHO Classification of Genetic Tumour Syndromes: Considerations for Genetics

open access: yesClinical Genetics, EarlyView.
The WHO Classification of Tumours underpins the diagnosis of neoplastic conditions. The new WHO classification of genetic tumour syndromes (GTS) provides international standards for their diagnosis. This diagram highlights the chromosomal distribution of the genes involved in the GTS covered in this classification.
Ian A. Cree   +18 more
wiley   +1 more source

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

Steroidogenic compensation and lipid deficiency with enhanced NAD+ salvage in small‐for‐gestational‐age placenta

open access: yesThe FEBS Journal, EarlyView.
Fetal growth restriction is associated with placental metabolic adaptations. In small‐for‐gestational‐age placenta (SGA), cholesterol receptors and steroidogenic enzymes are upregulated, enhancing steroidogenesis. NAD salvage pathway is also increased to support NADP+/NADPH requirements.
Serena Xodo   +4 more
wiley   +1 more source

Insights into the catalytic mechanism of formate dehydrogenases from different microbial sources

open access: yesThe FEBS Journal, EarlyView.
This integrated study combines experimental enzyme kinetics with QM/MM simulations to map the catalytic mechanisms of four formate dehydrogenases at the atomic level. This approach reveals the key determinants of catalytic efficiency and guides the rational design of biocatalysts for effective CO2 reduction—a crucial step towards sustainable ...
Laura Legnani   +8 more
wiley   +1 more source

MAT2B regulates the protein level of MAT2A to preserve RNA N6-methyladenosine

open access: yesCell Death and Disease
MAT2B works together with MAT2A to synthesize S-Adenosyl methionine (SAM) as the primary methyl donor. MAT2B, despite lacking catalytic activity, exerts regulatory control over the enzymatic activity of MAT2A.
Xinyi Wan   +14 more
doaj   +1 more source

1H NMR metabolomics and lipidomics analysis of neutrophils reveals biomarkers of ageing, inflammageing and frailty

open access: yesThe FEBS Journal, EarlyView.
Using 1H NMR metabolomics, we measured polar and lipid metabolites from human blood neutrophils from people with frailty (n = 31, mean age 84Y), people with rheumatoid arthritis (n = 16, mean age 55Y), robust older (n = 24, mean age 66Y) and healthy younger people (n = 21, mean age 22Y).
Genna Ali Abdullah   +5 more
wiley   +1 more source

Fast & fuelious: the malate–aspartate shuttle in brown adipocyte lipid metabolism

open access: yesThe FEBS Journal, EarlyView.
Brown adipose tissue (BAT) produces heat in response to cold exposure, for which it relies on the coordination of aerobic and anaerobic metabolism. However, how reaction intermediates connect these two essential pathways is unclear. In this issue of The FEBS Journal, Veliova et al., report that the malate–aspartate shuttle (MAS) supports norepinephrine‐
Lukas Blaas, Alexander Bartelt
wiley   +1 more source

The multidimensional regulation roles and mechanisms of calcium in fruit quality

open access: yesJournal of Integrative Plant Biology, EarlyView.
This review explores how calcium signaling molecule integrates plant hormones, environmental cues, and developmental signals to influence external fruit traits, internal nutritional properties, and physiological disorders. ABSTRACT Calcium (Ca2+), a dual‐functional mineral that serves both as an essential structural factor and a signaling molecule ...
Fei Jiang   +6 more
wiley   +1 more source

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