Results 41 to 50 of about 2,109,260 (296)

Ablation of Ventral Midbrain/Pons GABA Neurons Induces Mania-like Behaviors with Altered Sleep Homeostasis and Dopamine D2R-mediated Sleep Reduction

iScience, 2020
Summary: Individuals with the neuropsychiatric disorder mania exhibit hyperactivity, elevated mood, and a decreased need for sleep. The brain areas and neuronal populations involved in mania-like behaviors, however, have not been elucidated.
Takato Honda, Yohko Takata, Yoan Cherasse, Seiya Mizuno, Fumihiro Sugiyama, Satoru Takahashi, Hiromasa Funato, Masashi Yanagisawa, Michael Lazarus, Yo Oishi   +9 more
doaj   +1 more source

Identification of early-onset photoreceptor degeneration in transgenic mouse models of Alzheimer's disease

iScience, 2021
Summary: Light sensitivity of the vertebrate retina relies on the integrity of photoreceptors, including rods and cones. Research in patients with Alzheimer's disease (AD) and in AD transgenic mice reports that accumulated amyloid-β (Aβ) plaques in the ...
Jie Zhang, Feng Gao, Yuqian Ma, Tian Xue, Yong Shen   +4 more
doaj   +1 more source

Antidepressant Effects of (S)-Ketamine through a Reduction of Hyperpolarization-Activated Current Ih

iScience, 2020
Summary: Compelling evidence suggests that a single sub-anesthetic dose of (R,S)-ketamine exerts rapid and robust antidepressant effects. However, the cellular mechanisms underlying the antidepressant effects of (R,S)-ketamine remain unclear.
Chung Sub Kim, Daniel Johnston
doaj   +1 more source

Neonatal exposures to sevoflurane in rhesus monkeys alter synaptic ultrastructure in later life

iScience, 2022
Summary: Repeated or prolonged early life exposure to anesthesia is neurotoxic in animals and associated with neurocognitive impairment in later life in humans.
Tristan Fehr, William G.M. Janssen, Janis Park, Mark G. Baxter   +3 more
doaj   +1 more source

The Accumulation of Tau-Immunoreactive Hippocampal Granules and Corpora Amylacea Implicates Reactive Glia in Tau Pathogenesis during Aging

iScience, 2020
Summary: The microtubule-associated tau protein forms pathological inclusions that accumulate in an age-dependent manner in tauopathies including Alzheimer's disease (AD). Since age is the major risk factor for AD, we examined endogenous tau species that
Connor M. Wander, Jui-Heng Tseng, Sheng Song, Heba A. Al Housseiny, Dalton S. Tart, Aditi Ajit, Yen-Yu Ian Shih, Rebecca Lobrovich, Juan Song, Rick B. Meeker, David J. Irwin, Todd J. Cohen   +11 more
doaj   +1 more source

Activity-dependent tau cleavage by caspase-3 promotes neuronal dysfunction and synaptotoxicity

iScience, 2023
Summary: Tau-mediated toxicity is associated with cognitive decline and Alzheimer’s disease (AD) progression. In particular, tau post-translational modifications (PTMs) are thought to generate aberrant tau species resulting in neuronal dysfunction ...
Carli K. Opland, Miles R. Bryan, Braxton Harris, Jake McGillion-Moore, Xu Tian, Youjun Chen, Michelle S. Itano, Graham H. Diering, Rick B. Meeker, Todd J. Cohen   +9 more
doaj   +1 more source

Connecting the Retina to the Brain [PDF]

, 2014
The authors disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: Work in the laboratory of LE is funded by the BBSRC [BB/J00815X/1] and the R.S. Macdonald Charitable Trust. Research in the
Erskine, Lynda, Herrera, Eloisa
core   +7 more sources

Targeting PTEN but not SOCS3 resists an age-dependent decline in promoting axon sprouting

iScience, 2022
Summary: Axonal repair is critical for functional recovery after injury of the CNS. We previously reported that neuronal PTEN deletion exhibits an age-dependent decline in promoting axon regeneration from the corticospinal tract (CST).
Cédric G. Geoffroy, Jessica M. Meves, Hugo Jae Mun Kim, Daniel Romaus-Sanjurjo, Theresa C. Sutherland, Jeffrey J. Li, Juliet Suen, Joshua J. Sanchez, Binhai Zheng   +8 more
doaj   +1 more source

Brainiac Caspases: Beyond the Wall of Apoptosis [PDF]

, 2019
For the last two decades, caspases, a family of cysteine-aspartic proteases, have evolved from being considered solely as regulators of apoptosis or inflammation to having a wider range of functions.
Alonso Bellido, Isabel María, Burguillos García, Miguel Ángel, Espinosa Oliva, Ana María, García Revilla, Juan   +3 more
core   +1 more source

Scn2a insufficiency alters spontaneous neuronal Ca2+ activity in somatosensory cortex during wakefulness

iScience, 2023
Summary: SCN2A protein-truncating variants (PTV) can result in neurological disorders such as autism spectrum disorder and intellectual disability, but they are less likely to cause epilepsy in comparison to missense variants.
Melody Li, Mohamed Eltabbal, Hoang-Dai Tran, Bernd Kuhn   +3 more
doaj   +1 more source