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Browsing Tag

immunity

31 posts
HHealth
Immune cells communicate across a continuous, bidirectional circuit between the CNS and periphery. Immune cells from across the body engage CNS tissues and, in turn, are shaped by signals returning from the brain. (Left) Under peripheral equilibrium, immune effectors mobilized from visceral organs, secondary lymphoid organs, hematopoietic tissues, and the peripheral nervous system (PNS) - including CD4+ and CD8+ T cells, B cells, monocytes (top 3 cell types), NK cells, dendritic cells, mast cells, neutrophils, and innate lymphoid cells (bottom cluster of cells) - engage the CNS in a homeostatic dialogue that supports neural cell health, plasticity, and repair, sustaining a protective environment. (Right) Age-associated dysfunction across the same peripheral compartments reshapes this circuit: altered immune effectors enter the CNS and contribute to shifting the local environment toward a degenerative state in which microglia adopt disease-associated programs, astrocytes become reactive, and neurons accumulate pathology. This model underscores how the same circuitry can yield protective or pathogenic outcomes and that neurodegeneration is downstream of dysfunctional brain-immune crosstalk. Study: Neurodegeneration as a dysregulation of neuroimmune crosstalk
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Disrupted brain-immune signaling may help drive neurodegeneration

  • August 24, 2026
From gut-primed T cells to microglial signaling and persistent gene-regulatory states, researchers map an intricate immune network that…
HHealth
Microbial genetic variation shapes neurocognitive behavior in sheep
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New analytical strategies can measure thousands of gut microbial proteins

  • August 3, 2026
The trillions of microorganisms living in our intestine influence our health, from digestion and metabolism to immunity. Yet…
HHealth
Study: The roles of pre-season immunity, age, viral shedding, and community exposures in shaping influenza household transmission dynamics. Image Credit: Photoroyalty / Shutterstock
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Children remain more vulnerable to influenza despite protective antibody levels

  • August 3, 2026
Twice-weekly household testing across three influenza seasons shows why conventional antibody measures tell only part of the story…
HHealth
Paper: Iodine and Its Impact on the Immune System of Humans and Domesticated Mammals: A Narrative Review
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Too little or too much iodine may push immunity off balance

  • July 28, 2026
A cross-species review traces how iodine influences immune defenses and why the boundary between benefit and harm remains…
NNutrition
Creatine May Do More Than Boost Muscle Performance
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Creatine May Do More Than Boost Muscle Performance

  • July 12, 2026
Creatine’s reputation as a gym staple may be getting an upgrade. UCLA researchers report that the supplement,…
NNutrition
Cancer hijacks embryonic gene editors to fuel growth
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Yeast food supplement helps immune cells fight cancer more effectively

  • July 12, 2026
Researchers from Trinity College Dublin (TCD) and University College Dublin (UCD) have shown for the first time that…
NNutrition
Study highlights variable synbiotic relationship of prebiotics and probiotics
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Study highlights variable synbiotic relationship of prebiotics and probiotics

  • June 16, 2026
Adults with obesity who consumed a dietary fiber supplement had positive effects on high-density lipoprotein cholesterol (HDL-C) and…
HHealth
Study: Pertussis resurgence after the COVID-19 pandemic in four Western Pacific Countries and the USA, highlighting the 2025 outbreak in Japan. Image Credit: Kateryna Kon / Shutterstock
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Why Japan saw a major pertussis surge in 2025 while other countries peaked earlier

  • April 21, 2026
Pertussis cases dropped during the pandemic, then surged back across several countries, but Japan’s delayed 2025 outbreak stood…
HHealth
Why are older adults far more at risk from COVID or flu?
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Why are older adults far more at risk from COVID or flu?

  • March 28, 2026
Published on 28/03/2026 – 8:00 GMT+1 Researchers may have found out why older adults are much more likely…
HHealth
Stress is making you sick | Culture
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Stress is making you sick | Culture

  • March 24, 2026
If it felt like everyone around you was sick at once this winter, you weren’t imagining it. This…
HHealth
Researchers validate Mpox antibody test during outbreak in Rwanda
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Researchers validate Mpox antibody test during outbreak in Rwanda

  • March 10, 2026
An antibody test for the infectious disease Mpox was successfully developed during the new clade 1b outbreak in…
NNutrition
Experts reveal key differences, benefits
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Experts reveal key differences, benefits

  • February 27, 2026
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