Results 51 to 60 of about 893,542 (163)
The Role of SIRT1 in Mediating Bone Marrow Edema and Its Interface With Bone Remodeling
ABSTRACT Background Bone marrow edema (BME), a common magnetic resonance imaging (MRI) finding characterized by increased fluid signal, is associated with pain and structural deterioration in conditions such as osteoarthritis and avascular necrosis. The pathophysiology of BME involves a complex interplay of vascular leakage, inflammation, microdamage ...
Yiming Chen +5 more
wiley +1 more source
Ferroptosis is governed by the balance between reactive oxygen species (ROS)‐driven lipid peroxidation and a multi‐tiered antioxidant network. ROS sources include mitochondrial electron transport chain, voltage‐dependent anion channels, NADPH oxidases, and endoplasmic reticulum‐resident oxidoreductases, while antioxidant defenses span the primary GSH ...
Deepak K +5 more
wiley +1 more source
Microgravity conditions cause myocardial atrophy and dysfunction with limited therapeutics. Accumulating evidence demonstrates that the deficiency of nicotinamide adenine dinucleotide (NAD + ) contributes to myocardial dysfunction under microgravity ...
Wenyu Gu MSc +7 more
doaj +1 more source
NAD+ Metabolic Reprogramming Drives CD8+ T Cells Senescence and Exacerbates Ulcerative Colitis
Nicotinamide adenine dinucleotide (NAD+) depletion induces mitochondrial dysfunction and cytosolic mtDNA leakage in CD8+ T cells, activating the cGAS‐STING pathway and promoting a senescence‐associated secretory phenotype (SASP). The resulting pro‐inflammatory CD8+ T cells release IFN‐γ and TNF‐α, disrupt the intestinal epithelial barrier, and ...
Maolin Ye +9 more
wiley +1 more source
Oxidative stress is a significant factor in the death of granulosa cells (GCs), leading to follicular atresia and consequently limiting the number of dominant follicles that can mature and ovulate within each follicular wave.
Yu Cai +8 more
doaj +1 more source
Targeting m6A Modifications Regulating Ferroptosis Offers Novel Therapy in Diseases
m6A RNA modification regulates ferroptosis by balancing iron metabolism, lipid peroxidation, and antioxidant defenses. Dysregulated m6A signaling disrupts pro‐ and anti‐ferroptotic factors, leading to excess ROS, Fe3+ accumulation, and lipid peroxidation–driven cell death. Targeting m6A‐mediated ferroptotic regulation represents a promising therapeutic
Lida Du +7 more
wiley +1 more source
Integrative simulation analysis of myocardial ischaemia–reperfusion injury
Abstract figure legend A comprehensive mathematical model of ventricular myocyte was developed to gain insights into the mechanisms underlying cardiac ischaemia–reperfusion injury. The model integrates excitation–contraction (E–C) coupling, cytosolic and mitochondrial pH regulation, pH dependence of major E–C coupling components and cellular energy ...
Takao Shimayoshi +2 more
wiley +1 more source
Nicotinamide mononucleotide (NMN) is an essential precursor of nicotinamide adenine dinucleotide (NAD+), which is widely applied in the pharmaceutical and biotech industries.
Tao Chen +4 more
core +1 more source
Background: Vascular smooth muscle cells (VSMCs) senescence exacerbates vascular diseases like atherosclerosis and hypertension. Angiotensin II (Ang II) is a strong inducer of VSMCs senescence, causing vascular damage, though its exact mechanism is ...
Na Liang +8 more
doaj +1 more source
SIRT6‐mediated ATF3 acetylation drives MGARP transcription and mitochondrial dysfunction in macrophages, promoting macrophage senescence and pulmonary fibrosis. Mechanistically, HSP70/Importin α competitively binds to ATF3, modulating its nuclear translocation.
Demin Cheng +18 more
wiley +1 more source

