Aging Promotes Reactivation of the Barr Body at Distal Chromosome Regions

Medicine, Rheumatology and Immunology, Obstetrics and Gynecology, Geriatrics, Neurology, Cardiovascular System, Life Sciences, Cell Biology, Biochemistry, Immunology, Genetics,
aging   Barr body   X chromosome inactivation   escape genes   chromatin accessibility   sex differences   epigenetics  

1. Academic Background: The Mysterious Link between X Chromosome Inactivation and Aging In mammals, females possess two X chromosomes while males have only one. To maintain gene dosage balance between the sexes, females undergo a process called X chromosome inactivation (XCI) early in development, in which one of the two X chromosomes is randomly s...

Aberrant Engagement of P-selectin Drives Hematopoietic Stem Cell Aging in Mice

Medicine, Basic Medical Sciences, Geriatrics, Hematology, Life Sciences, Cell Biology, Biochemistry, Immunology,
P-selectin   hematopoietic stem cells   aging   gene expression   erythropoiesis   inflammation   stem cell regeneration  

1. Research Background and Scientific Problem The health of the hematopoietic system is crucial to the proper functioning of the body, with hematopoietic stem cells (HSCs) at its core in maintaining normal blood system operation. HSCs possess self-renewal and multipotent differentiation abilities, capable of generating all types of blood cells, inc...

Harnessing a Noncanonical Vestibular Input in the Head-Direction Network to Rectify Age-Related Navigational Deficits

Medicine, Basic Medical Sciences, Geriatrics, Neurology, Life Sciences, Cell Biology,
noncanonical vestibular input   head-direction network   navigation   aging   neural circuits   synaptic plasticity   cognitive decline  

Bypassing Canonical Pathways: Uncovering a “Noncanonical” Vestibular Input for Correcting Age-Related Navigational Deficits — An Analysis of “harnessing a noncanonical vestibular input in the head-direction network to rectify age-related navigational deficits” 1. Academic Background: Why Focus on Age-Related Navigational Deficits? Spatial navigatio...

Mitochondria-Enriched Hematopoietic Stem Cells Exhibit Elevated Self-Renewal Capabilities Within the Context of Aged Bone Marrow

Medicine, Basic Medical Sciences, Geriatrics, Hematology, Life Sciences, Cell Biology, Biochemistry, Immunology, Genetics,
hematopoietic stem cells   mitochondria   self-renewal   aging   bone marrow   single-cell analysis   cell differentiation  

Mitochondria-Enriched Hematopoietic Stem Cells Reveal Enhanced Self-Renewal Activity in Aged Bone Marrow: In-Depth Analysis of the Latest Study in Nature Aging I. Academic Background and Research Significance Hematopoietic stem cells (HSCs) are the essential foundation underlying life-long production of blood and immune cells. However, with aging, ...

Not Fleeting but Lasting: Limited Influence of Aging on Implicit Adaptive Motor Learning and its Short-Term Retention

Medicine, Geriatrics, Neurology,
aging   implicit learning   motor adaptation   spontaneous recovery  

The Impact of Aging on Implicit Motor Learning and Short-term Memory: A Study Based on Force Field Adaptation Research Background Motor adaptation is the process by which the brain adjusts motor strategies in response to environmental changes, typically involving two mechanisms: explicit learning and implicit learning. Explicit learning is a rapid,...