Results 71 to 80 of about 9,639 (217)

Co‐ and Multi‐Pathologies in Parkinson's Disease: An International Parkinson and Movement Disorder Society Scientific Issues Committee Review

Movement Disorders, EarlyView.
Abstract Parkinson's disease (PD) has been historically defined as a disease of striatal dopamine deficiency secondary to degeneration of dopaminergic neurons in the substantia nigra pars compacta, related to the presence of Lewy bodies and Lewy neurites.
Michele Matarazzo, Per Borghammer, Inas Elsayed, Jennifer G. Goldman, Yue Huang, Katja Lohmann, Per Svenningsson, Lorraine V. Kalia, Daniela Berg, Jeffrey H. Kordower, the MDS Scientific Issues Committee   +10 more
wiley   +1 more source

Brain Clearance of Contrast Agent in Intravenous DCE‐MRI Is Measurable and Cannot Be Explained by Clearance Across the BBB Alone

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To determine the feasibility of measuring brain clearance of gadolinium contrast agent using standard intravenous DCE‐MRI acquisitions and evaluate the contribution of blood–brain barrier (BBB) and non‐BBB clearance routes. Methods Uptake and extended Tofts models were fit to DCE‐MRI data from people with Parkinson's disease, post ...
Martin Kozár, Ioana‐Emilia Mosneag, Sarah Al‐Bachari, Igor Chernyavsky, Geoff J. M. Parker, Hervé Boutin, Laura M. Parkes, Ingo Schiessl, Ben R. Dickie   +8 more
wiley   +1 more source

Stress and the glymphatic system

, 2020
Psychoneuroendocrinoimmunology (PNEI) is an integrative discipline studying the processes by which mental events modulate immune functions and how the immune system in turn can alter brain function. The central nervous system (CNS) is the only system in the body lacking its own anatomically defined lymphatic vessels.
Mariya Ivanovska, Meral Naimova, Marianna Murdjeva   +2 more
openaire   +1 more source

Circadian rhythms and chronotherapy in Alzheimer's disease: Mechanisms and therapeutic implications

Neuroprotection, EarlyView.
Circadian dysregulation contributes to Alzheimer's disease through sleep disruption, clock‐gene dysfunction, neuroinflammation, impaired proteostasis, and metabolic imbalance. These alterations promote cognitive decline and disease progression, while circadian biomarkers and chronotherapeutic interventions offer opportunities for precision diagnosis ...
Bivek Singh, Filippo Pigazzani, Roberto Manfredini   +2 more
wiley   +1 more source

The Ocular Glymphatic System—Current Understanding and Future Perspectives [PDF]

The ocular glymphatic system subserves the bidirectional polarized fluid transport in the optic nerve, whereby cerebrospinal fluid from the brain is directed along periarterial spaces towards the eye, and fluid from the retina is directed along ...
Christine Delle, Delle, Christine, Wang, Xiaowei, Maiken Nedergaard, Nedergaard, Maiken, Xiaowei Wang   +5 more
core   +1 more source

Interplay between the glymphatic system and neurotoxic proteins in Parkinson's disease and related disorders: current knowledge and future directions

Neural Regeneration Research
Parkinson's disease is a common neurodegenerative disorder that is associated with abnormal aggregation and accumulation of neurotoxic proteins, including α-synuclein, amyloid-β, and tau, in addition to the impaired elimination of these neurotoxic ...
Yumei Yue, Xiaodan Zhang, Wen Lv, Hsin-Yi Lai, Ting Shen   +4 more
doaj   +1 more source

Phase coupling between eye and brain pulsations is bidirectional and modulated by the parasympathetic system – An fMREye study

Acta Ophthalmologica, EarlyView.
Abstract Purpose Physiological pulsations driven by cardiac, respiratory, and vasomotor activity are essential for solute transport within perivascular and perineural cerebrospinal fluid (CSF) pathways that support brain and eye clearance systems. Previous studies have shown that parasympathetic blockade significantly reduces ocular pulsation power and
Ebrahimi Seyed‐Mohsen, Väyrynen Tommi, Huotari Niko, Saarela Ville, Honkamo Marja, Helakari Heta, Järvelä Matti, Korhonen Vesa, Raitamaa Lauri, Kiviniemi Vesa   +9 more
wiley   +1 more source

The role and mechanism of Aβ clearance dysfunction in the glymphatic system in Alzheimer’s disease comorbidity

Frontiers in Neurology
Alzheimer’s disease (AD) is the leading type of dementia globally, characterized by a complex pathogenesis that involves various comorbidities. An imbalance in the production and clearance of amyloid β-protein (Aβ) peptides in the brain is a key ...
Hailang Li, Qianqian Yao, Xueyan Huang, Xiaoyan Yang, Changyin Yu   +4 more
doaj   +1 more source

Wasteosomes accumulate in periventricular white matter hyperintensities and exhibit complex relationships with mixed pathology, sclerotic index, and perivascular space

Brain Pathology, EarlyView.
In a mixed diagnostic cohort of pathologically diagnosed Alzheimer's disease, cerebrovascular disease, mixed pathology, and control tissue, we connected the histopathological wasteosome profile in periventricular (PV) brain sections to 7T FLAIR‐MRI confirmed PV white matter hyperintensities (WMHs), vascular stenosis and perivascular space size ...
Nikita Ollen‐Bittle, Isabella Boesgaard, Austyn Roseborough, Meaghan Frank, Qi Zhang, Stephen H. Pasternak, Robert Hammond, Shawn N. Whitehead   +7 more
wiley   +1 more source

Glymphatic system and aquaporin‑4 in epilepsy

Acta Neurobiologiae Experimentalis, 2023
Over the past decade glymphatic concept has gained more and more interest. Despite some lacking data regarding structural and functional aspects, glymphatic system is widely considered the main mechanism of water and solutes transport in brain parenchyma, as well as waste clearance from the brain.
openaire   +2 more sources