Documents in Process

Genetically encoded calcium (Ca2+) indicators (GECIs) are essential tools for monitoring neuronal activity, but the performance of red fluorescent GECIs has remained limited. In particular, many red indicators are relatively dim, produce low signal-to-noise ratios and can undergo unwanted photoswitching when exposed to blue light, restricting their use in all-optical experiments that combine imaging with optogenetics or multicolor imaging. [...]

Increasing evidence points towards sleep apnea as a modifiable risk factor for neurodegeneration. This study investigates the longitudinal effect of sleep apnea on brain structures in a general population.Data from the Study of Health in Pomerania with baseline laboratory-based polysomnography and magnetic resonance imaging (MRI) (2008-2012) and 7-year follow-up MRI (2016-2019) were used. [...]

The corpus callosum, the largest commissural structure in the human brain, is a central focus in research on aging and neurological diseases. It is also a critical target for interventions such as deep brain stimulation and serves as an important biomarker in clinical trials, including those investigating remyelination therapies. [...]

The role of inflammation in cortical superficial siderosis (cSS), a marker of cerebral amyloid angiopathy (CAA) linked to high hemorrhage risk, is unclear. We examined 15 patients with cSS using 3 T post-contrast vessel wall MRI (VWI) and CSF analysis. [...]

Intracerebral hemorrhage (ICH) is a devastating stroke subtype without effective therapy. Neuroinflammation, particularly driven by NLRP3 inflammasome–mediated pyroptosis, is a key contributor to secondary brain injury (SBI). [...]

Parkinson's disease (PD) is associated with specific cognitive deficits and dysfunctions in Theory of Mind (ToM), which can impact patients' quality of life. ToM refers to the ability to infer the mental and emotional state of one's counterpart and involves the prefrontal cortex and the basal ganglia in its function. [...]

This study aimed to identify the effectiveness of free water MRI (FW-MRI) features for predicting amyloid-beta (Aβ) statuses in Alzheimer’s disease (AD) by constructing diagnostic models using machine learning analysis.This study retrospectively included 96 patients of mild cognitive impairment (MCI) and AD (69 Aβ-positive and 27 Aβ-negative). Clinical characteristics, FW-corrected and standard diffusion indices, and structural MRI indices were collected. [...]

Neurodegenerative diseases are pathological states characterized by progressive alterations in brain homeostasis during aging. Synucleinopathies, including Parkinson's disease and dementia with Lewy bodies, are defined neuropathologically by the accumulation of inclusions known as Lewy bodies and Lewy neurites. [...]