Results 81 to 90 of about 298,796 (340)

The phosphoinositide 3-kinase-dependent activation of Btk is required for optimal eicosanoid production and generation of reactive oxygen species in antigen-stimulated mast cells

, 2008
Activated mast cells are a major source of the eicosanoids PGD(2) and leukotriene C(4) (LTC(4)), which contribute to allergic responses. These eicosanoids are produced following the ERK1/2-dependent activation of cytosolic phospholipase A(2), thus ...
Beaven, Michael A., Gilfillan, Alasdair M., Kim, Mi-Sun, Kuehn, Hye Sun, Metcalfe, Dean D., Swindle, Emily J.   +5 more
core   +1 more source

Lipids at the crossroad of α-synuclein function and dysfunction: Biological and pathological implications [PDF]

, 2019
Since its discovery, the study of the biological role ofα-synuclein and its pathologicalimplications has been the subject of increasing interest. The propensity to adoptdifferent conformational states governing its aggregation and fibrillation makes ...
Alza, Natalia Paola, Conde, Melisa Ailén, Iglesias González, Pablo Andrés, Salvador, Gabriela Alejandra, Uranga, Romina Maria   +4 more
core   +1 more source

Presbycusis: Pathology, Signal Pathways, and Therapeutic Strategy

Advanced Science, EarlyView.
In ARHL, the stria vascularis, acting as a cochlear battery, gradually loses its ability to maintain the endocochlear potential, leading to impaired hair cell function and progressive hearing loss. Single‐cell sequencing reveals age‐related cellular changes in the cochlea, providing insights into the underlying mechanisms of aging and potential ...
Xiaoxu Zhao, Tian Shen, Shengda Cao, Ziyi Liu, Wendu Pang, Meixuan Li, Jingjing Liu, Wen Li, Yunhao Wu, Chengcheng Liu, Ming Xia, Xiaolong Fu, Cheng Cheng   +12 more
wiley   +1 more source

Hydrolysis of phospholipids by a lysosomal enzyme

Journal of Lipid Research, 1967
The phospholipid-hydrolyzing activity of rat liver lysosomes has been studied. These lysosomes contain a phospholipase that cleaves both fatty acid ester linkages of lecithin and of phosphatidyl ethanolamine and releases free fatty acids from both ...
A. Mellors, A.L. Tappel
doaj  

Piezoelectric Biomaterials for Bone Regeneration: Roadmap from Dipole to Osteogenesis

Advanced Science, EarlyView.
Piezoelectric biomaterials convert mechanical forces into electrical signals, offering novel strategies to restore and modulate bone microenvironments for tissue engineering. This review examines molecular dipole origins, spatial arrangements, and pseudo‐piezoelectric mechanisms and highlights dipole‐engineering techniques for osteogenesis regulation ...
Xiyao Ni, Yufei Cui, Mojtaba Salehi, Mui Ling Sharon Nai, Kun Zhou, Cian Vyas, Boyang Huang, Paulo Bartolo   +7 more
wiley   +1 more source

Tumor‐Associated Glycan Exploits Adenosine Receptor 2A Signaling to Facilitate Immune Evasion

Advanced Science, EarlyView.
This study identifies Globo H ceramide (GHCer) as a novel immune checkpoint molecule that suppresses the activation of conventional T lymphocytes while promoting the differentiation and function of regulatory T cells. The immunosuppressive effects of GHCer are mediated through the activation of the A2AR/cAMP/PKA pathway, which involves its interactions
Jing‐Yan Cheng, Hsiu‐Hui Tsai, Jung‐Tung Hung, Tsai‐Hsien Hung, Chun‐Cheng Lin, Chien‐Wei Lee, Zi‐Chi Lo, Jing‐Rong Huang, Shih‐Pin Chiou, Yenlin Huang, Shih‐Hsiang Chen, Chun‐Nan Yeh, John Yu, Alice L. Yu   +13 more
wiley   +1 more source

Phospholipase A2 Biochemistry [PDF]

Cardiovascular Drugs and Therapy, 2008
The phospholipase A(2) (PLA(2)) superfamily consists of many different groups of enzymes that catalyze the hydrolysis of the sn-2 ester bond in a variety of different phospholipids. The products of this reaction, a free fatty acid, and lysophospholipid have many different important physiological roles.
Burke, John E, Dennis, Edward A
openaire   +5 more sources

Small Extracellular Vesicles Orchestrate Cisplatin‐Induced Ototoxicity: Potential Biomarker and Targets Discovery

Advanced Science, EarlyView.
Cisplatin causes reactive oxygen species accumulation, leading to apoptosis and inflammation in cochlear hair cells. Small extracellular vesicles primarily derived from the damaged hair cells likely contribute to cisplatin‐induced ototoxicity, carrying a variety of microRNAs and proteins.
Jingru Ai, Shasha Zhang, Mingchen Dai, Pei Jiang, Jingyuan Huang, Hairong Xiao, Yanqin Lin, Xujun Tang, Wei Tong, Jun He, Qiuyue Mao, Yintao Wang, Zixuan Ye, Tian Wang, Renjie Chai   +14 more
wiley   +1 more source

Red Blood Cell Membrane Lipidomics: Potential Biomarkers Detecting Method for Plasma Volume Overload and Major Adverse Cardiovascular Events in Chronic Heart Failure Patients

Advanced Science, EarlyView.
A novel RBC indicator, ESI, is better than the traditional RBC indicators and is associated with CHF prevalence and in‐hospital death. RBC membrane lipidomics, Cer 18:0;O2/16:0, and LPE 18:0, are associated with plasma volume overload and MACE in CHF patients, but these plasma lipids could not.
Lin Zhang, Xiangqin Ou, Jingyi Lin, Xiaofei Luo, Jiashun Zhou, Xingyue Zhou, Peihua Zhao, Li Liu, Ziran Zhao, Ying Zhou, Guanwei Fan, Lifeng Han, Xiumei Gao   +12 more
wiley   +1 more source

Molecular Mechanism of Oocyte Activation in Mammals: Past, Present, and Future Directions

Biomolecules
During mammalian fertilization, repetitive intracellular Ca2+ increases known as Ca2+ oscillations occur. These oscillations are considered crucial for successful fertilization and subsequent embryonic development. Numerous researchers have endeavored to
Hibiki Sugita, Shunsuke Takarabe, Atsuko Kageyama, Yui Kawata, Junya Ito   +4 more
doaj   +1 more source