Results 61 to 70 of about 47,323 (291)

Supersulfide biology and translational medicine for disease control

British Journal of Pharmacology, EarlyView., 2023
Abstract For decades, the major focus of redox biology has been oxygen, the most abundant element on Earth. Molecular oxygen functions as the final electron acceptor in the mitochondrial respiratory chain, contributing to energy production in aerobic organisms. In addition, oxygen‐derived reactive oxygen species including hydrogen peroxide and nitrogen
Uladzimir Barayeu, Tomohiro Sawa, Motohiro Nishida, Fan‐Yan Wei, Hozumi Motohashi, Takaaki Akaike   +5 more
wiley   +1 more source

Aberrant Mitochondrial Metabolism in Alzheimer's Disease Links Energy Stress with Ferroptosis

Advanced Science, EarlyView.
Alves et al. reveal how energy loss and oxidative stress, two major features of Alzheimer's disease, are connected. Mitochondria controls the flux of the antioxidant glutathione (GSH), via facilitating both its production and consumption. Energy restriction limits GSH synthesis, conferring vulnerability to cell death by ferroptosis, implicated as a ...
Francesca Alves, Darius Lane, Adam Wahida, Md. Jakaria, Pawel Kalinowski, Adam Southon, Abdel Ali Belaidi, Teresa Samperi‐Esteve, Triet Phu Minh Nguyen, Peng Lei, Marcus Krueger, Stefan Mueller, Marcus Conrad, Puja Agarwal, Sue E Leurgans, Julie Schneider, Ashley I. Bush, Scott Ayton   +17 more
wiley   +1 more source

The effect of amino acid enantiomers on activity of selected enzymes in soil

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2011
This work was aimed to test the effect of selected amino acid enantiomers on activity of casein-protease and acid phosphomonoesterase in soil. Casein-protease was selected due to its key role in nitrogen mineralization and acid phosphomonoesterase due to
Peter Dundek, Ladislav Holík, Valerie Vranová, Klement Rejšek, Pavel Formánek   +4 more
doaj   +1 more source

Lysosome‐Featured Cell Aggregate‐Released Extracellular Vesicles Regulate Iron Homeostasis and Alleviate Post‐Irradiation Endothelial Ferroptosis for Mandibular Regeneration

Advanced Science, EarlyView.
Lysosomal redistribution occurs via extracellular vesicles in multi‐stem cell aggregates and controls iron homeostasis for safeguarding cell aggregation. These cell aggregate‐released extracellular vesicles (CA‐EVs) rescue lysosomal impairments and exert anti‐ferroptosis effects in recipient irradiated endothelial cells.
Yuan‐Yuan Li, Bo Ma, Jia‐Wei Lu, Kai‐Chao Zhang, Chao Ma, Sheng‐Feng Bai, Yan‐Jiao Li, Si‐Qi Ying, Wei‐Zong Weng, Kai Zhang, Xi‐Wang Hu, Rang Li, Chen‐Xi Zheng, Xiao‐Ru Xu, Ji Chen, Fang Jin, Hao‐Kun Xu, Jian‐Wei Xie, Yan Jin, Yi Shuai, Bing‐Dong Sui   +20 more
wiley   +1 more source

RUNX1/SLAMF3 Axis Drives Immunosuppression to Contribute to Colorectal Cancer Liver Metastasis by Blocking Phagocytosis and Depleting C1QC+ Tumor‐Associated Macrophages

Advanced Science, EarlyView.
This study identifies the RUNX1/SLAMF3 axis as a key driver of colorectal cancer liver metastasis (CRLM). SLAMF3 suppresses macrophage phagocytosis and depletes C1QC⁺ tumor‐associated macrophages, promoting an immunosuppressive microenvironment. Targeting this axis restores macrophage and CD8⁺ T cell activity and reduces metastasis.
Yinheng Luo, Xiaoli Jin, Lan Huang, Dejia Zeng, Nan Zhang, Shiyu Tang, Shu Luo, Samina Ejaz Syed, Ruiwu Dai, Qiu Li, Shufang Liang   +10 more
wiley   +1 more source

Sulfur Amino Acids in Diet-induced Fatty Liver: A New Perspective Based on Recent Findings

Molecules, 2014
The relationship of sulfur amino acids to diet-induced fatty liver was established 80 years ago, with cystine promoting the condition and methionine preventing it.
John I. Toohey
doaj   +1 more source

ALKBH5‐Mediated M6A Demethylation of G3BP1 Attenuates Ferroptosis Via Cytoplasmic Retention of YBX1/p53 in Diabetic Myocardial Ischemia‐Reperfusion Injury

Advanced Science, EarlyView.
ALKBH5 promoted G3BP1 expression via m⁶A methylation at sites 142/173. G3BP1 interacts with YBX1 and p53, reducing their nuclear translocation and decreasing p53‐mediated SLC7A11 repression. This inhibites cardiomyocyte ferroptosis and mitigates myocardial damage during diabetic ischemia‐reperfusion injury.
Wenyuan Li, Wei Li, Yan Leng, Heng Xu, Zhongyuan Xia, Yao Wang   +5 more
wiley   +1 more source

Zinc Alleviates Gut Barrier Dysfunction by Promoting the Methylation of AKT

Advanced Science, EarlyView.
Zinc activates the ZNG1‐METAP1 complex to elevate intracellular SAM levels, which promotes PRMT5‐mediated symmetrical dimethylation of AKT at R391 and R15. This epigenetic modification facilitates AKT membrane translocation and mTORC2 activation, thereby enhancing epithelial proliferation and gut barrier integrity.
Chuanjiang Cai, Yining Zheng, Bo Sun, Guoyan Wang, Pengfei Li, Huijun Geng, Rongnuo Li, Miaomiao Zhu, Yuanyuan Zhu, Dingping Feng, Lei Chen, Guiyan Chu, Lu Deng, Shiyan Qiao   +13 more
wiley   +1 more source

Selective, Simple and Economical Method for the Voltammetric Determination of Bi(III) in the presence Cystine in Non – Complexing Solution

E3S Web of Conferences, 2013
The simple and fast method for the determination of Bi(III) in non-complexing solution was proposed. The catalytic activity of cystine on Bi(III) ions electroreduction process were utilized.
Nosal –Wiercińska A., Grochowski M., Tyszczuk–Rotko K., Skrzypek S., Guziejewski D.   +4 more
doaj   +1 more source

Case Report: Unusual Neurological Features of Leigh Syndrome due to m.8993T>G Pathogenic Variant in the MT‐ATP6 Gene

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT The MT‐ATP6 gene m.8993T>G pathogenic variant has been associated with Leigh syndrome, especially in patients exhibiting a high degree of heteroplasmy. Although patients may present with a wide phenotypic spectrum, characteristic findings include bilateral, symmetric hyperintensities in the basal ganglia and brainstem on brain MRI ...
Ramya Treitel, Julie McLaughlin, Marta Frigeni   +2 more
wiley   +1 more source