Tag

Immune System

All articles tagged with #immune system

health2 days ago•4 min saved

The Immune Drama Behind Seasonal Allergies

Seasonal allergies happen when pollen is misread as a threat by the immune system. Dendritic cells help sensitization, antibodies cluster on mast cells, and subsequent pollen exposure releases histamine and other chemicals that inflame the eyes, nose, and airways, causing itching, congestion, and a runny nose. Eosinophils can prolong symptoms, and about a quarter of US adults are affected, sometimes after one exposure or across several seasons. Treatments like antihistamines and nasal steroids dampen the inflammatory response, while saline rinses help flush out irritants. Different seasons bring different pollen, but effective management is possible with medication and avoidance strategies.

via The New York Times|

#antihistamines #health #histamine

health3 days ago•69 min saved

Keratin 16 acts as a brake on skin inflammation, hinting at new psoriasis therapies

A new study finds keratin 16 normally suppresses skin inflammation by dampening type I interferon signaling; when KRT16 is mutated or absent, inflammation spikes, linking keratin 16 to conditions like pachyonychia congenita, psoriasis, and eczema. The researchers suggest targeting interferon signaling could yield new treatments, as an interferon inhibitor reduced skin lesions in a mouse PC model.

via Live Science|

#health #immune-system #inflammation

health-and-medicine12 days ago•6 min saved

New Monocyte State Tied to Long COVID Fatigue and Breathing Issues

A single-cell multiomics study of Long COVID patients found a distinct molecular state in CD14+ monocytes (LC-Mo), especially common in those who had mild-to-moderate initial infection. LC-Mo correlates with fatigue and respiratory symptoms and is linked to elevated cytokine levels, offering a new lead for personalized treatment and deeper understanding of Long COVID.

via ScienceDaily|

#cytokines #health-and-medicine #immune-system

health13 days ago•67 min saved

Endometriosis Seen as a Whole-Body Immune Disorder with Ripple Effects

Endometriosis is described as a systemic immune disorder driven by chronic inflammation, with elevated cytokines such as IL-6 and IL-1beta in the blood and immune cells that fail to clear lesions, producing ripple effects like fatigue, brain fog, and widespread pain beyond pelvic symptoms. A 2025 study linked endometriosis to roughly twice the odds of an autoimmune diagnosis within two years of onset, suggesting shared inflammatory mechanisms rather than a purely reproductive disease; reframing it as a whole-body immune condition could guide development of immune-modulating treatments and empower patients in healthcare settings.

via Live Science|

#autoimmune-diseases #cytokines #endometriosis

science23 days ago•5 min saved

Brain-skin stress circuit drives eczema flare-ups

New research identifies a brain-to-skin neural circuit that, under stress, activates eosinophils and fuels inflammation in atopic dermatitis, explaining how psychological stress worsens eczema in both mice and humans (51 participants showed higher stress and more inflammation).

via Nature|

#eczema #eosinophils #immune-system

science24 days ago•61 min saved

Adult thymus health linked to longevity and reduced cancer/heart disease risk

A deep-learning CT‑based thymic health score was developed and applied to 27,612 adults in NLST and the Framingham Heart Study. Higher thymic health was consistently associated with lower all-cause mortality, reduced lung cancer incidence, and lower cardiovascular mortality; thymic health also correlated with lifestyle factors and systemic inflammation, supporting the thymus as an active driver of immune health in adulthood and a potential target for healthy aging strategies.

via Nature|

#aging #immune-system #inflammation

health28 days ago•70 min saved

Polystyrene microplastics may clog immune cells, hindering infection defense

A mouse study found that polystyrene microplastics can accumulate in macrophages and disrupt their ability to engulf dead cells and pathogens, impairing infection clearance in the lungs. While microplastics are detected in many tissues, there is not yet clear evidence of direct human health effects; researchers caution about potential links to inflammation and cardiovascular issues and plan further human studies to assess relevance to human health.

via Live Science|

#health #immune-system #infections

science1 month ago•11 min saved

The appendix: a repeatedly reinvented organ that helps immunity and gut microbes

The article explains that the appendix is not a simple leftover but has evolved independently in multiple mammal lineages (convergent evolution) and contains gut-associated lymphoid tissue that trains the immune system and may shelter helpful microbes after infections. In modern clean environments its selective value is modest, appendectomy does not impair fertility, and medicine treats the organ mainly to prevent disease rather than as an essential feature of health.

via The Conversation|

#appendix #convergent-evolution #evolution

health1 month ago•4 min saved

Inflammation’s Hidden Hand: Immune Signals Tied to Brain Fog After Illness

A systematic review of 32 studies (25,325 participants) links pro-inflammatory cytokines (IL-6, TNF-α, IFN-γ) and intermediate monocytes to slower processing speed, memory issues, and reduced mental flexibility after illness, with anti-inflammatory IL-10 and higher CD4+ T cells offering protection; practical steps to calm inflammation—sleep, stress management, anti-inflammatory diet, regular moderate exercise, and consulting a clinician about inflammatory markers—may help mitigate brain fog after viral infections.

via MindBodyGreen|

#brain-fog #cognition #cytokines

health1 month ago•74 min saved

Immune therapy targets depression by calming inflammation, early trials underway

Researchers are exploring an immune-based approach to depression, testing dupilumab (an IL-4 receptor blocker) to dampen the Th2 inflammatory pathway. Early mouse data showed reversal of depression-like symptoms, and a small clinical trial in treatment-resistant depression is planned, signaling a potential shift toward immune-targeted, personalized treatments for depression.

via Live Science|

#depression #dupilumab #health

health1 month ago•67 min saved

Immune signals and hormones may explain why women's pain lingers longer

New research combining mouse experiments with human vehicle‑crash data suggests that pain after injury lasts longer in women because monocytes produce less IL-10, a molecule that both reduces inflammation and directly dampens pain signals; testosterone boosts IL-10 production in male monocytes, helping men recover faster. This shifts the view of the immune system from solely driving pain to also helping resolve it, pointing to therapies that enhance the body's natural pain‑resolution pathways to prevent chronic pain.

via Live Science|

#health #immune-system #interleukin-10

health1 month ago•24 min saved

Immune ‘Off-Switch’ for Pain Found to Differ by Sex, Study Shows

A new Science Immunology study links IL-10–producing monocytes to an immune brake that dampens pain after injury. In mice, males had more IL-10–producing cells and recovered faster, with pain lasting longer when IL-10 or its receptor was blocked. Human data from the AURORA trauma study showed higher IL-10 levels at injury in men and lower subsequent pain, suggesting a biological basis for women’s longer-lasting pain. While not the sole pathway for all chronic pain, the findings point to immune signaling as a potential target, with ideas like skin-applied testosterone to modulate IL-10–positive monocytes under exploration (noting more research is needed).

via ZME Science|

#health #il-10 #immune-system

health-and-fitness1 month ago•18 min saved

Vagus nerve hype: what science says about bioelectric medicine and health

The article explains how the vagus nerve may help regulate inflammation and influence health through bioelectric medicine, but cautions that many devices and claims lack solid evidence, urging rigorous science to distinguish real therapeutic potential (such as for autoimmune conditions) from hype.

via The Independent|

#bioelectric-medicine #gut-brain-axis #health-and-fitness

health1 month ago•19 min saved

Vagus nerve boom: can brain–body signaling actually curb inflammation?

The piece explains how the vagus nerve might regulate inflammation via bioelectric medicine, notes potential therapies like vagus nerve stimulation for conditions, but warns that hype from unverified experts and questionable devices can mislead, urging cautious, evidence-based approaches.

via The Independent|

#anxiety #gut-microbiome #health

health1 month ago•3 min saved

Immune cells and hormones may explain why women's pain lasts longer

New research in mice and humans suggests that immune cells produce IL-10 to help resolve pain, and sex differences in this response—shaped by testosterone—may explain why women often recover more slowly from injury and have a higher risk of chronic pain. These findings point to therapies that boost the body's natural pain-resolution system rather than only blocking pain signals.

via The Conversation|

#gender-differences #health #il-10