Results 91 to 100 of about 166,999 (286)

Impact of Sex and Age on the Mevalonate Pathway in the Brain: A Focus on Effects Induced by Maternal Exposure to Exogenous Compounds

Metabolites, 2020
The mevalonate pathway produces cholesterol and other compounds crucial for numerous cellular processes. It is well known that age and sex modulate this pathway in the liver.
Claudia Tonini, Marco Segatto, Valentina Pallottini   +2 more
doaj   +1 more source

Gender Differences in Bile Acids and Microbiota in Relationship with Gender Dissimilarity in Steatosis Induced by Diet and FXR Inactivation. [PDF]

, 2017
This study aims to uncover how specific bacteria and bile acids (BAs) contribute to steatosis induced by diet and farnesoid X receptor (FXR) deficiency in both genders.
French, Samuel W, Gonzalez, Frank J, Jena, Prasant Kumar, Kalanetra, Karen M, Krishnan, Viswanathan V, Liu, Hui-Xin, Mills, David A, Sheng, Lili, Wan, Yu-Jui Yvonne   +8 more
core   +1 more source

T Cell Exhaustion in Cancer Immunotherapy: Heterogeneity, Mechanisms, and Therapeutic Opportunities

Advanced Science, EarlyView.
T cell exhaustion limits immunotherapy efficacy. This article delineates its progression from stem‐like to terminally exhausted states, governed by persistent antigen, transcription factors, epigenetics, and metabolism. It maps the exhaustion landscape in the TME and proposes integrated reversal strategies, providing a translational roadmap to overcome
Yang Yu, Xiaoyu Yao, Qingyang Wang, Mengrui Yang, Runze Li, Jiangjiang Qin, Jing Zhuang, Changgang Sun   +7 more
wiley   +1 more source

Novel route for elimination of brain oxysterols across the blood-brain barrier: conversion into 7α-hydroxy-3-oxo-4-cholestenoic acid

Journal of Lipid Research, 2007
Recently, we demonstrated a net blood-to-brain passage of the oxysterol 27-hydroxycholesterol corresponding to 4–5 mg/day. As the steady-state levels of this sterol are only 1–2 μg/g brain tissue, we hypothesized that it is metabolized and subsequently ...
Steve Meaney, Maura Heverin, Ute Panzenboeck, Lena Ekström, Magnus Axelsson, Ulla Andersson, Ulf Diczfalusy, Irina Pikuleva, John Wahren, Wolfgang Sattler, Ingemar Björkhem   +10 more
doaj   +1 more source

The sheep conceptus modulates proteome profiles in caruncular endometrium during early pregnancy [PDF]

, 2016
This project was funded by NHS Grampian R&D project number RG05/019Peer ...
Al-Gubory, Kaïs, Arianmanesh, Mitra, Fowler, Paul A   +2 more
core   +2 more sources

Nanoscale Spatial Organization of ARC High‐ and Low‐Order Assemblies at Excitatory Synapses

Advanced Science, EarlyView.
ARC (Activity‐Regulated Cytoskeleton‐Associated protein) mediates synaptic plasticity by forming nanoscale assemblies in neurons. Using super‐resolution microscopy and time‐resolved anisotropy with targeted tagging, the study reveals low‐order ARC assemblies at synapses colocalizing with AMPARs, semi‐circular structures at endocytic zones, and 60–80 nm
Martina Damenti, Giovanna Coceano, Mariline Mendes Silva, Jonatan Alvelid, Chiara Sgattoni, Andrea Volpato, Lea Rems, Luciano A. Masullo, Eduard M. Unterauer, Rafal Kowalewski, Lucie Delemotte, Erdinc Sezgin, Ralf Jungmann, Ilaria Testa   +13 more
wiley   +1 more source

Neuroprotection targeting protein misfolding on chronic cerebral hypoperfusion in the context of metabolic syndrome [PDF]

, 2018
Metabolic syndrome (MetS) is a cluster of risk factors that lead to microvascular dysfunction and chronic cerebral hypoperfusion (CCH). Long-standing reduction in oxygen and energy supply leads to brain hypoxia and protein misfolding, thereby linking CCH
Capani, Francisco, Herrera, María Inés, Kusnier, Carlos Federico, Luaces, Juan Pablo, Otero-Losada, Matilde Estela, Toro Urrego, Nicolás, Udovin, Lucas   +6 more
core   +1 more source

Neutrophil‐Driven Cascade‐Targeted Nanocarriers Restore Mitochondrial Homeostasis to Ameliorate Renal Ischemia–Reperfusion Injury

Advanced Science, EarlyView.
A neutrophil‐mediated dual‐targeting liposome (NKN‐LNP) is developed to treat renal ischemia–reperfusion injury. The system enables spatiotemporally controlled delivery of NMN to injured tubules via MMP‐2/9 activation and KIM1 recognition, restoring mitochondrial function through NAD+‐SIRT3 signaling and preventing the transition from acute kidney ...
Hangbin Ma, Yang Li, Shen Lin, Feifan Chu, Gaozhan Ren, Yinhui Mao, Mingzhi Wu, Yuning Ma, Qiwei Ji, Zujie Chen, Jinzhong Ji, Mingxin Sun, Yongpeng Xu, Xiaoli Sun, Longguang Tang, Hao Zhou   +15 more
wiley   +1 more source

Cholesterol retention in Alzheimer's brain is responsible for high β- and γ-secretase activities and Aβ production

Neurobiology of Disease, 2008
Alzheimer's disease (AD) is characterized by overproduction of Aβ derived from APP cleavage via β- and γ-secretase pathway. Recent evidence has linked altered cholesterol metabolism to AD pathogenesis. In this study, we show that AD brain had significant
Huaqi Xiong, Debbie Callaghan, Aimee Jones, Douglas G. Walker, Lih-Fen Lue, Thomas G. Beach, Lucia I. Sue, John Woulfe, Huaxi Xu, Danica B. Stanimirovic, Wandong Zhang   +10 more
doaj   +1 more source

ALKBH3 m1A Demethylase Deficiency Reduces Alzheimer's Amyloid‐β Pathology

Advanced Science, EarlyView.
This study identifies that ALKBH3‐driven m1A demethylation orchestrates Alzheimer's disease progression by disrupting mitochondrial and synaptic homeostasis. This epitranscriptomic mechanism suppresses PINK1‐mediated mitophagy via m1A erasure, leading to mitochondrial dysfunction, oxidative stress, elevated Aβ production, and impaired microglial ...
Yueyang Li, Sifei Yu, Kaidong Lu, Yujie Zhang, Mingjie Dong, Yan Peng, Liang Xue, Waleed Alam, Yuxuan Shui, Yi Zhou, Wuyunhan Ma, Meng Bao, Peiming Li, Peiyi Luo, Tiezhan Lu, Jiajia Li, Kang Zhang, Yuying Wang, Shuchen Yang, Nuoya Yin, Francesco Faiola, Zilong Gao, Jingfeng Zhou, Fei Zhao, Yali He, Magdalena J. Koziol   +25 more
wiley   +1 more source