Results 71 to 80 of about 63,423 (202)

Escherichia coli Strain Designed for Characterizing in Vivo Functions of Nicotinamide Adenine Dinucleotide Analogues

open access: yes, 2019
An Escherichia coli strain was constructed for the efficient import of nicotinamide adenine dinucleotide (NAD) analogues into cells by limiting extracellular degradation while expressing an efficient NAD importer. In vivo functions of three NAD analogues
Liu, Bin   +6 more
core   +1 more source

Nitro Reduction‐Based RNA Control and Ultrafast Release

open access: yesAngewandte Chemie, EarlyView.
A chemical RNA caging–uncaging strategy based on nitro reduction is described. Nitroaryl groups introduced via acylation temporarily block the functions of diverse RNAs in vitro and in living cells. Treatment with a diboronic acid–bipyridine mixture rapidly reduces the nitro groups, releasing RNAs and restoring their activity.
Yiran Zhao   +6 more
wiley   +2 more sources

NAD+ Repletion Rescues Female Fertility during Reproductive Aging

open access: yesCell Reports, 2020
Summary: Reproductive aging in female mammals is an irreversible process associated with declining oocyte quality, which is the rate-limiting factor to fertility. Here, we show that this loss of oocyte quality with age accompanies declining levels of the
Michael J. Bertoldo   +33 more
doaj   +1 more source

OsCPK12‐OsATPD1 Module Regulates Photosynthetic Acclimation to Light Stress in Rice

open access: yesAdvanced Science, EarlyView.
OsCPK12 interacts and phosphorylates OsAtpD1 at Ser8 in its transit peptide. This phosphorylation promote its chloroplast translocation, thereby maintaining ATP synthase activity and proton gradient (ΔpH) homeostasis and regulating photosynthetic acclimation, photoprotection, and repair under light stress.
Beifang Wang   +17 more
wiley   +1 more source

Review on Biosynthesis of β-Nicotinamide Mononucleotide and Its Derivatives [PDF]

open access: yesShipin Kexue
β-Nicotinamide mononucleotide (NMN) is present in all organisms and has attracted widespread attention as a nutritional supplement and pharmaceutical product for the treatment of various diseases, such as Alzheimer’s disease, cancer, aging, and vascular ...
WANG Zhaoying, GUO Xinhao, HUANG Xinhe, CHEN Zhuoyan, LIU Yueqi, LI Juan, CHEN Ning, FAN Xiaoguang
doaj   +1 more source

Nicotinamide Metabolism Constrains Memory CD8+ T Cell Formation Through a Putative HS1BP3‐SIRT1‐FOXO3‐BCL6 Axis

open access: yesAdvanced Science, EarlyView.
ABSTRACT Memory T cells exhibit long‐term persistence, a defining feature that underpins durable clinical responses to adoptive immunotherapies. The mechanisms that integrate metabolic cues with transcriptional control of memory fate remain undetermined. Here, we identify HS1‐binding protein 3 (HS1BP3) is preferentially expressed in memory CD8+ T cells.
Siyang Wang   +13 more
wiley   +1 more source

Macrophage PARP7 Alleviates Septic Cardiomyopathy by Interacting With TBK1 and Suppressing TBK1‐Driven Inflammatory Response

open access: yesAdvanced Science, EarlyView.
In septic cardiomyopathy, PARP7 directly binds TBK1 and mediates its ADP‐ribosylation, thereby repressing TBK1‐driven proinflammatory signaling in macrophages. ABSTRACT Septic cardiomyopathy is a life‐threatening complication of sepsis, and an uncontrolled inflammatory response represents a key pathogenic mechanism. PARP7 negatively regulates the IFN‐I
Jibo Han   +10 more
wiley   +1 more source

Creation of Bioorthogonal Redox Systems Depending on Nicotinamide Flucytosine Dinucleotide

open access: yes, 2011
Creation of Bioorthogonal Redox Systems Depending on Nicotinamide Flucytosine DinucleotideMany enzymes catalyzing biological redox chemistry depend on the omnipresent cofactor, nicotinamide adenine dinucleotide (NAD).
Wang, Jinxia   +7 more
core   +1 more source

The processes of the catalytic cycle of the cytochrome system associated with its activation by means of the enzyme Nicotinamide-β-adenine dinucleotide phosphate-H-ferrihemoprotein oxidoreductase [PDF]

open access: yesBIO Web of Conferences
The paper presents a theoretical study of the molecular mechanism of activation of the cytochrome P450 system by the enzyme Nicotinamide-β-adenine dinucleotide phosphate-H-ferrihemoprotein oxidoreductase in the catalytic cycle.
Popova Olga   +3 more
doaj   +1 more source

The GPX3‐VCAM1 Axis Gates Pro‐Fibrotic Tubule Cell Fate in Hyperuricemic Nephropathy

open access: yesAdvanced Science, EarlyView.
Hyperuricemia induces NLRP3 inflammasome signaling activation and downregulation of GPX3 in proximal tubular epithelial cells, leading to oxidative stress–driven VCAM1 upregulation, emergence of pro‐fibrotic proximal tubule cells, macrophage recruitment, and renal fibrosis.
Yunfei Qi   +11 more
wiley   +1 more source

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