Results 111 to 120 of about 442,139 (308)

The influence of extracellular superoxide on iron redox chemistry and bioavailability to aquatic microorganisms

Frontiers in Microbiology, 2012
Superoxide, the one-electron reduced form of dioxygen, is produced in the extracellular milieu of aquatic microbes through a range of abiotic chemical processes and also by microbes themselves.
Andrew eRose
doaj   +1 more source

TRAIP Mediates Alcohol‐Induced Liver Injury through Regulating β‐catenin Ubiquitin Degradation via Direct Interaction

Advanced Science, EarlyView.
This study reveals that NF‐κB1‐driven TRAIP upregulation in ALD correlates with disease severity. Mechanistically, TRAIP directly binds β‐catenin via its CC domain and promotes its K48‐linked ubiquitination and degradation, which is independent of the GSK3β/β‐TrCP pathway.
Zhan Wu, Mingjiang Liu, Lijuan Liao, Zhaohong Mo, Wenli Xu, Linfeng Mao, Yubing Chen, Qiuli Xie, Ming Yao, Shilian Chen, Stephen Tomlinson, Sebastian Mueller, Songqing He, Guandou Yuan   +13 more
wiley   +1 more source

The chemistry of peroxynitrite, a biological toxin

Química Nova, 1998
Oxyradicals play a tole in several diseases. While for several decades the hydroxyl radical - produced via the Fenton reaction - has been considered the species that initiates oxyradical damage, new findings suggest that much of this damage can be ...
W. H. Koppenol
doaj   +1 more source

Engineering Approaches to Modify Immunomodulatory Functions of Mesenchymal Stromal Cells (MSCs): Tissue Regeneration and Clinical Application

Advanced Science, EarlyView.
Mesenchymal stromal cells (MSCs) show promise for treating immune‐related disorders through immunomodulation and tissue regeneration. This review gives a brief overview of current clinical approval of MSC therapies. It also discussed how bioengineering, including genetic modification, biomaterial delivery, extracellular vesicles, and iPSC‐derived MSCs,
Sichen Yang, Kejia Li, Ning Wang, Zhen Li, Zhiyong Zhang, Rocky S. Tuan, Yangzi Jiang   +6 more
wiley   +1 more source

GHRHR Deficiency Enhances Retinal Ganglion Cell Survival and Visual Functions in Experimental Glaucoma by Inhibiting Ferroptosis

Advanced Science, EarlyView.
Glaucoma, a major cause of blindness, involves retinal ganglion cell (RGC) degeneration. This study shows growth hormone‐releasing hormone receptor (GHRHR) deficiency preserves RGC survival and restores vision, unlike activation which only aids survival.
Yan Tong, Ming Ho Yam, Jiaxin Zhang, Lin Du, Linbin Zhou, Yolanda Wong Ying Yip, Bo Man Ho, Hemlata Bisnauthsing, Jiahui Li, Ivan Kong, Shushu Xu, Changzhen Fu, Karl K.H. So, Joaquim S.L. Vong, Ling‐Ping Cen, Ming‐Ming Yang, Khazeema Yousaf, Mai Har Sham, Sun On Chan, Poemen P. Chan, Chi Pui Pang, Clement C. Tham, Jing Na He, Jian Li, Wai Kit Chu   +24 more
wiley   +1 more source

Superoxide Anion Regulates the Mitochondrial Free Ca2+ Through Uncoupling Proteins

, 2009
Mitochondrial dysfunction, which is closely related to intracellular calcium overload and excessive free radicals, is an important cause of Alzheimer's disease (AD).
Zhao, Baolu, Wu, Zhaofei, Zhang, Jie
core   +1 more source

Biofilm‐Binding Phages Enhance Biofilm Eradication by Synergistic Photothermal and Photodynamic Therapy

Advanced Science, EarlyView.
Engineered phage‐based trifunctional nanofibers are developed for synergistic biofilm eradication. Biofilm‐binding phages, armed with AuNPs and TCPP, serve as both warheads and scaffolds, endowing the phototherapy agents with biofilm‐anchoring ability. Upon light irradiation, AuNPs induce photothermal therapy, while TCPP generates 1O2 for photodynamic ...
Ying Cao, Tao Yang, Rui Wang, Hui‐Da Li, Xiao‐Yu Zhang, Feng Cheng, Ying Liu, Jian‐Hua Wang, Ting Yang, Chuanbin Mao   +9 more
wiley   +1 more source

A study on the comparison of antioxidant effects among cultivated ginseng, and cultivated wild ginseng extracts -Using the measurement of superoxide and hydroxy radical scavenging activities-

Journal of Pharmacopuncture, 2009
Objectives : The objective of this study was to compare the antioxidant effects among cultivated wild ginseng and ginseng extracts. Methods : In vitro antioxidant activities were examined by superoxide and hydroxyl radical scavenging activities of ...
Tae Jin, Rhim, Heesun, Jeong, Young Jin Kim, Doo Young, Kim, Young ju, Han, Haeyon, Kwon, Ki Rok, Kwon   +6 more
doaj   +1 more source

Characterization of inhibitors for Cu/Zn superoxide dismutase observed by ¹?F NMR methods [PDF]

, 2010
Superoxide dismutase (SOD) is an enzyme that disproportionates superoxide (O2-) into H2O2 and O2. The inhibition of this enzyme could be a novel method for the treatment of chronic diseases such as leukemia, cancer and malaria.2,7,8 Methods that rely on ...
NC DOCKS at Western Carolina University, Markley, Jonathan   +1 more
core  

A mutation in dynein rescues axonal transport defects and extends the life span of ALS mice [PDF]

, 2005
Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative condition characterized by motoneuron degeneration and muscle paralysis. Although the precise pathogenesis of ALS remains unclear, mutations in Cu/Zn superoxide dismutase (SOD1) account for
Dairin Kieran, Martin, J, Joanne Martin, Schiavo, G, Giampietro Schiavo (107907), Dick, JRT, Greensmith, L., Joanne Martin (11260388), Bohnert, S, Hafezparast, M., Elizabeth M.C. Fisher, Fisher, EMC, Linda Greensmith, Stephanie Bohnert (16066082), Martin, J., Majid Hafezparast (4461484), Fisher, E.M.C., James R T Dick (16066085), Majid Hafezparast, Greensmith, L, Linda Greensmith (252146), Giampietro Schiavo, Kieran, D., Bohnert, S., Stephanie Bohnert, James R.T. Dick, Dairin Kieran (7953794), Dick, J.R.T., Kieran, D, Hafezparast, M, Schiavo, G., Elizabeth M C Fisher (16062626)   +31 more
core   +1 more source