Results 31 to 40 of about 71,981 (295)

Intranasal administration of α-synuclein preformed fibrils triggers microglial iron deposition in the substantia nigra of Macaca fascicularis

Cell Death and Disease, 2021
Iron deposition is present in main lesion areas in the brains of patients with Parkinson’s disease (PD) and an abnormal iron content may be associated with dopaminergic neuronal cytotoxicity and degeneration in the substantia nigra of the midbrain ...
Jian-Jun Guo, Feng Yue, Dong-Yan Song, Luc Bousset, Xin Liang, Jing Tang, Lin Yuan, Wen Li, Ronald Melki, Yong Tang, Piu Chan, Chuang Guo, Jia-Yi Li   +12 more
doaj   +1 more source

NAD+‐Boosters Improve Mitochondria Quality Control In Parkinson's Disease Models Via Mitochondrial UPR

Advanced Science, EarlyView.
Treatment of MPTP‐incubated cells with NAD+‐boosters increase the UPRmt/mitophagy‐related mitochondria quality control (MQC). Disturbed plasma UPRmt‐mitophagy‐mediated MQC profiles in PD patient samples. NMN inhibits motor deficit and forestalls neuropathology phenotypes of PD mice, which is required the atf4‐medicated UPRmt pathway.
Shuoting Zhou, Xi Xiong, Jialong Hou, Qi Duan, Yi Zheng, Tao Jiang, Jiani Huang, Haijun He, Jiaxue Xu, Keke Chen, Wenwen Wang, Jinlai Cai, Jingjing Qian, Huijun Chen, Weihong Song, XinShi Wang, Chenglong Xie   +16 more
wiley   +1 more source

Parasubthalamic Glutamatergic Neurons Coordinate Cardiovascular Homeostasis and Locomotion in Mice

Advanced Science, EarlyView.
PSTNVglut2 neurons function as a new central baroreflex hub via projections to the NTS, modulating parasympathetic cardiac output to maintain cardiovascular homeostasis while synchronously regulating locomotion. Blood pressure fluctuations negatively correlate with locomotor performance.
Ming‐Xuan Lu, Jin‐Yin Huang, Xing‐Zhe Xu, Ji‐Yu Sun, Dan‐Ni Zou, Jia‐Yao Zhang, Chen Chi, Qi Zhang, Wei‐Cai Liu   +8 more
wiley   +1 more source

Advanced MRI-based evaluation of gray and white matter changes in Parkinson’s disease

The Egyptian Journal of Radiology and Nuclear Medicine
Background Parkinson’s disease (PD) is the most common movement disorder and the second most common neurodegenerative disease. The aim of our study was to compare gray–white matter changes (GWC) between Parkinson's disease (PD) patients and age-matched ...
Mohamed Mohsen, Nehal Aboubakr Elsayed Mohamed, Abdelhalim El-Tantawy Mohamed Bedir, Ahmed Abdel Khalek Abdel Razek, Ahmed Effat Abbas Mohamed Saied   +4 more
doaj   +1 more source

Mechanical Forces Guide Axon Growth through the Nigrostriatal Pathway in an Organotypic Model

Advanced Science, EarlyView.
Nano‐pulling is a magnetic nanoparticle‐based technology for guiding and promoting the axon growth of induced pluripotent stem cell‐derived dopaminergic neurospheres in vitro or neural progenitors transplanted in the brain tissue. Fine control of axon guidance is essential for reconstructing neural networks and restoring functional connectivity in the ...
Sara De Vincentiis, Elena Capitanini, Karen Kira, Claudia Dell'Amico, Jun Takahashi, Marco Onorati, Fabian Raudzus, Vittoria Raffa   +7 more
wiley   +1 more source

Human Induced Pluripotent Stem Cells Improve Stroke Outcome and Reduce Secondary Degeneration in the Recipient Brain

Cell Transplantation, 2012
Human induced pluripotent stem cells (hiPSCs) are a most appealing source for cell replacement therapy in acute brain lesions. We evaluated the potential of hiPSC therapy in stroke by transplanting hiPSC-derived neural progenitor cells (NPCs) into the ...
Jérôme Polentes, Pavla Jendelova, Michel Cailleret, Holger Braun, Nataliya Romanyuk, Philippe Tropel, Marion Brenot, Valerie Itier, Christine Seminatore, Kathrin Baldauf, Karolina Turnovcova, Daniel Jirak, Marius Teletin, Julien Côme, Johana Tournois, Klaus Reymann, Eva Sykova, Stéphane Viville, Brigitte Onteniente   +18 more
doaj   +1 more source

Extracellular LCN2 Binding to 24p3R in Astrocytes Impedes α‐Synuclein Endocytosis in Parkinson's Disease

Advanced Science, EarlyView.
24p3R is an astrocytic receptor for α‐Syn uptake. When LCN2 is secreted from astrocytes, it binds to its receptor 24p3R in astrocytes and this binding impedes the α‐Syn PFF binding to 24p3R. This in turn inhibits 24p3R‐mediated α‐Syn PFF uptake and reduces the clearance of extracellular α‐Syn by astrocytes, which contributes to α‐Syn spread and ...
Ying‐Ying Jiao, Tian Tian, Zhu Zhu, Lei Cao, Yang Liu, Rui‐An Wang, Zhi‐Yong Zhou, Cong Wang, Ke‐Zhong Zhang, Xiao Lu, Wen‐Wei Yun, Ying‐Mei Lu, Gang Hu, Ren‐Hong Du, Ming Lu   +14 more
wiley   +1 more source

Identification of proteins in human substantia nigra [PDF]

PROTEOMICS – Clinical Applications, 2008
AbstractCharacterization of the human brain proteome is a critical area of research. While examination of the human cortex has provided some insight, very little is known about the proteome of the human midbrain, which demonstrates substantial loss of dopaminergic neurons in the substantia nigra pars compacta (SNpc) in Parkinson's disease (PD ...
Kitsou, Efstathia, Pan, Sheng, Zhang, Jian Peng, Shi, Min, Zabeti, Aram, Dickson, Dennis W., Albin, Roger L., Gearing, Marla, Kashima, Daniel T., Wang, Yan, Beyer, Richard P., Zhou, Yong, Pan, Catherine, Caudle, W. Michael, Zhang, Jing   +14 more
openaire   +4 more sources

A Machine‐Learning Approach Identifies Rejuvenating Interventions in the Human Brain

Advanced Science, EarlyView.
Rising life expectancy increases the incidence of age‐related neurodegeneration. Reverting brain aging through effective rejuvenation strategies constitutes a promising strategy to counteract these disorders and restore brain function. This study uses a brain‐specific transcriptional aging clock to screen over 43 000 perturbation profiles, identifying ...
Guillem Santamaria, Cristina Iglesias, Sascha Jung, Javier Arcos Hodar, Ruben Nogueiras, Antonio del Sol   +5 more
wiley   +1 more source

Dopaminergic neurodegeneration in the substantia nigra is associated with olfactory dysfunction in mice models of Parkinson’s disease

Cell Death Discovery, 2023
Olfactory dysfunction represents a prodromal stage in Parkinson’s disease (PD). However, the mechanisms underlying hyposmia are not specified yet.
Yu Yuan, Xizhen Ma, Xiaoqing Mi, Le Qu, Meiyu Liang, Mengyu Li, Youcui Wang, Ning Song, Junxia Xie   +8 more
doaj   +1 more source