Basic Science and Pathogenesis.

Background: Excessive daytime sleepiness is a common and early symptom of Alzheimer's disease (AD). The subcortical wake-promoting neurons in the lateral hypothalamic area, tuberomammillary nucleus (TMN), and locus coeruleus synchronize to maintain wakefulness/arousal. Although significant neuronal decline occurs in wake-promoting regions, the TMN histaminergic neurons remain relatively more intact than orexinergic and nor-adrenergic neurons.

Basic Science and Pathogenesis.

Background: Individuals meeting neuropathological criteria for Alzheimer's disease (AD) may manifest with atypical clinical syndromes. Past work showed that the neurobiological basis for these differences is related to specific neuronal vulnerabilities for tau pathology. For instance, amnestic cases have a higher burden of neurofibrillary changes in CA1.

Basic Science and Pathogenesis.

Background: Understanding the molecular mechanisms underlying selective neuronal vulnerability is crucial for developing effective treatments for Alzheimer's disease (AD). Our group has shown that RORB/CDH9-positive excitatory neurons in the entorhinal cortex (EC) display selective vulnerability as early as Braak stage (BB) 2. However, not all RORB/CDH9-positive neurons are vulnerable.

Quantification of lysosomal labile Zn and monitoring of Zn efflux using a small-molecule-protein hybrid fluorescent probe.

Lysosomal labile Zn levels have been unclear. By targeting a small-molecule fluorescent Zn probe, ZnDA-3H, to lysosomes via VAMP7-Halo, the lysosomal labile Zn concentration was determined to be 1.9 nM in HeLa cells.

Saturation of the compression of two interacting magnetized plasma toroids evidenced in the laboratory.

Interactions between magnetic fields advected by matter play a fundamental role in the Universe at a diverse range of scales. A crucial role these interactions play is in making turbulent fields highly anisotropic, leading to observed ordered fields. These in turn, are important evolutionary factors for all the systems within and around.