Results 21 to 30 of about 131,833 (239)

Astrocyte-secreted GDNF and glutathione antioxidant system protect neurons against 6OHDA cytotoxicity

open access: yesNeurobiology of Disease, 2009
In recent years, GDNF has emerged as a protective and restorative agent in several models of neurodegeneration; however, the exact molecular mechanisms responsible for these effects are not yet fully understood. Here we examined the effects of astrocytes
Jagdeep K. Sandhu   +8 more
doaj   +1 more source

Adult Neural Stem Cell Regulation by Small Non-coding RNAs: Physiological Significance and Pathological Implications

open access: yesFrontiers in Cellular Neuroscience, 2022
The adult neurogenic niches are complex multicellular systems, receiving regulatory input from a multitude of intracellular, juxtacrine, and paracrine signals and biological pathways. Within the niches, adult neural stem cells (aNSCs) generate astrocytic
Amber Penning   +7 more
doaj   +1 more source

Does the plasticity of neural stem cells and neurogenesis make them biosensors of disease and damage?

open access: yesFrontiers in Neuroscience, 2022
Postnatal and adult neurogenesis takes place in the dentate gyrus of the hippocampus in the vast majority of mammals due to the persistence of a population of neural stem cells (NSCs) that also generate astrocytes and more NSCs.
Ane Rodríguez-Bodero   +4 more
doaj   +1 more source

Frontiers in Neurogenesis

open access: yesCells, 2022
One of the most intriguing dogmas in neurosciences—the empirical lack of brain neuronal regeneration in adulthood onwards to late life—began to be debunked initially by research groups focused on understanding postnatal (early days/weeks of murine and guinea pigs) neurodevelopmental and neuroplastic events [...]
Andreia Vaz, Inês Ribeiro, Luísa Pinto
openaire   +3 more sources

Functional anterior pituitary generated in self-organizing culture of human embryonic stem cells

open access: yesNature Communications, 2016
It is difficult to generate functional human anterior pituitary tissues in vitro. Here, Ozone et al. generate human anterior pituitary from embryonic stem cells by recapitulating in vivodevelopment, and demonstrate this tissue secretes hormones and ...
Chikafumi Ozone   +8 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

The role of lipid metabolism in neuronal senescence

open access: yesFEBS Open Bio, EarlyView.
Disrupted lipid metabolism, through alterations in lipid species or lipid droplet accumulation, can drive neuronal senescence. However, lipid dyshomeostasis can also occur alongside neuronal senescence, further amplifying tissue damage. Delineating how lipid‐induced senescence emerges in neurons and glial cells, and how it contributes to ageing and ...
Dikaia Tsagkari   +2 more
wiley   +1 more source

Self-Organization of Polarized Cerebellar Tissue in 3D Culture of Human Pluripotent Stem Cells

open access: yesCell Reports, 2015
During cerebellar development, the main portion of the cerebellar plate neuroepithelium gives birth to Purkinje cells and interneurons, whereas the rhombic lip, the germinal zone at its dorsal edge, generates granule cells and cerebellar nuclei neurons ...
Keiko Muguruma   +4 more
doaj   +1 more source

Metabolism and neurogenesis [PDF]

open access: yesCurrent Opinion in Neurobiology, 2017
The generation of neurons in the developing and adult mammalian brain by neural stem/progenitor cells (NSPCs) depends on a tight control of NSPC activity and neuronal differentiation that is regulated by a plethora of intrinsic and extrinsic molecular cues.
Knobloch, Marlen, Jessberger, Sebastian
openaire   +3 more sources

The Aging Blood: Cellular Origins, Circulating Drivers, and Therapeutic Potential

open access: yesAging and Cancer, EarlyView.
As a conduit linking all organs, the blood system both reflects and actively drives systemic aging. This review highlights how circulating pro‐aging and antiaging factors and age‐associated hematopoietic stem cell dysfunction contribute to immunosenescence and multi‐organ decline, positioning the hematopoietic system as a target for aging intervention.
Hanqing He, Jianwei Wang
wiley   +1 more source

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