Results 81 to 90 of about 149,249 (343)

Pigment Epithelium‐Derived Factor Deficiency Impairs Hippocampal Glutamate Homeostasis and Cognitive Function by Downregulating Astrocytic GLT‐1

Advanced Science, EarlyView.
The chronic glutamate‐induced excitotoxicity hypothesis has profoundly informed the therapeutic strategies employed in Alzheimer’s disease (AD). This study shows pigment epithelium‐derived factor (PEDF) regulates astrocytic glutamate transporter‐1 (GLT‐1)‐mediated glutamate homeostasis and cognition. Reduced PEDF correlates with lower Mini‐Mental State
Jin‐Hui Shi, Qi‐Long Tang, Jin‐Hong Wang, Yan‐Lan Long, Sai‐Feng Zhao, Zhen Zhao, Wan‐Ting Xie, Zi‐Ming Li, Hao‐Ming Lu, Tian‐Xiao Gao, Zhen‐Zhen Fang, Ti Zhou, Bo‐Xing Li, Xia Yang, Guo‐Quan Gao, Wei‐Wei Qi   +15 more
wiley   +1 more source

An Interhelical Salt Bridge Controls Flexibility and Inhibitor Potency for Regulators of G-protein Signaling Proteins 4, 8, and 19

Molecular Pharmacology, 2019
Regulators of G-protein signaling (RGS) proteins modulate receptor signaling by binding to activated G-protein α-subunits, accelerating GTP hydrolysis.
Vincent S. Shaw, Mohammadjavad Mohammadi, Josiah A. Quinn, Harish Vashisth, R. Neubig   +4 more
semanticscholar   +1 more source

The elemental mechanism of transcriptional pausing. [PDF]

, 2019
Transcriptional pausing underlies regulation of cellular RNA biogenesis. A consensus pause sequence that acts on RNA polymerases (RNAPs) from bacteria to mammals halts RNAP in an elemental paused state from which longer-lived pauses can arise.
Chua, Xien Yu, Landick, Robert, Mishanina, Tatiana V, Mooney, Rachel Anne, Nayak, Dhananjaya, Saba, Jason, Windgassen, Tricia A   +6 more
core   +1 more source

Molecular mechanism of Gαi activation by non-GPCR proteins with a Gα-Binding and Activating motif [PDF]

, 2017
Heterotrimeric G proteins are quintessential signalling switches activated by nucleotide exchange on Gα. Although activation is predominantly carried out by G-protein-coupled receptors (GPCRs), non-receptor guanine-nucleotide exchange factors (GEFs) have
Baillie, George S., Blanco, Francisco J., Blanco-Canosa, Juan B., Cerione, Richard A., de la Cruz-Morcillo, Miguel Angel, DiGiacomo, Vincent, Garcia-Marcos, Mikel, Ibáñez de Opakua, Alain, Leyme, Anthony, Marivin, Arthur, Merino, Nekane, Nguyen, Lien T., Parag-Sharma, Kshitij, Ramachandran, Sekar, Villate, Maider   +14 more
core   +1 more source

Post‐Translational Modified Neoantigens in Autoimmune Diseases: Challenges of Immune Tolerance

Advanced Science, EarlyView.
Autoimmune diseases have a high incidence and disability rate. The pathogenesis of autoimmune diseases involves the interaction among genetic factors, environmental factors, and immune disorders. The post‐translational modified neoantigens are the key nodal of these three factors. And these post‐translational modified neoantigens, after being presented
Yue Zhai, Kefei Wu, Qi Lin, Zhenzhen Cao, Yankun Jia, Ping Zhu   +5 more
wiley   +1 more source

Amino-terminal cysteine residues of RGS16 are required for palmitoylation and modulation of G(i)- and G(q)-mediated signaling [PDF]

, 1999
RGS proteins (Regulators of G protein Signaling) are a recently discovered family of proteins that accelerate the GTPase activity of heterotrimeric G protein α subunits of the i, q, and 12 classes.
Backlund, Peter S., Caron, Joan M., Chen, Ching-Kang, Druey, Kirk M., Jones, Teresa L. Z., Ugur, Ozlem   +5 more
core   +1 more source

Activation of Kir4.1 Channels by 2‐D08 Promotes Myelin Repair in Multiple Sclerosis

Advanced Science, EarlyView.
Multiple sclerosis causes myelin loss and neurological dysfunction. This study shows that 2‐D08, a small molecule targeting Kir4.1 channels, promotes OPCs differentiation via FYN tyrosine kinase phosphorylation and the FYN/MYRF pathway. It significantly improves myelin repair and motor deficits in EAE mice and marmosets, highlighting its potential as a
Mingdong Liu, Shengyu Jin, Xin Fu, Chong Xie, Yi Chen, Liangtang Chang, Yongheng Fan, Donghua He, Xiaoqi Hong, Xi Shen, Xiaoli Zheng, Qiyue Wang, Dao Shi, Fangyuan Li, Daishun Ling, Yangtai Guan, Neng Gong, Xiaoping Tong   +17 more
wiley   +1 more source

Caveolin-1 Phosphorylation Is Essential for Axonal Growth of Human Neurons Derived From iPSCs. [PDF]

, 2019
Proper axonal growth and guidance is essential for neuron differentiation and development. Abnormal neuronal development due to genetic or epigenetic influences can contribute to neurological and mental disorders such as Down syndrome, Rett syndrome, and
Almenar-Queralt, Angels, DerMardirossian, Celine, Head, Brian P, Leem, Joseph, Patel, Hemal H, Patel, Piyush M, Roth, David M, Wang, Shanshan, Zhang, Zheng   +8 more
core   +1 more source

Long Term High‐Salt Diet Induces Cognitive Impairments via Down‐Regulating SHANK1

Advanced Science, EarlyView.
The study identifies a novel mechanistic link between long‐term HS diet and cognitive impairment, wherein PKA/CREB axis inactivation leads to SHANK1 reduction, synaptic damage, and cognitive deficits. Abstract High‐salt (HS) diet is an established risk factor for cognitive impairment, but the underlying mechanisms remain unclear.
Cuiping Guo, Yuanyuan Li, Wensheng Li, Tongrui Wu, Yi Liu, Yacoubou Abdoul Razak Mahaman, Jianzhi Wang, Rong Liu, Wei Liu, Hui Shen, Xiaochuan Wang   +10 more
wiley   +1 more source

Gill transcriptome response to changes in environmental calcium in the green spotted puffer fish [PDF]

, 2010
Background Calcium ion is tightly regulated in body fluids and for euryhaline fish, which are exposed to rapid changes in environmental [Ca2+], homeostasis is especially challenging. The gill is the main organ of active calcium uptake and therefore plays
Canario, Adelino V. M., Matsumura, H., Pinto, Patricia IS, Power, Deborah, Reinhardt, Richard, Terauchi, Ryohei, Thorne, Michael A. S.   +6 more
core   +5 more sources