Immunosenescence

Disease

2 papers

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Research Square

Blood-cell telomerase delays premature aging in zebrafish

Boosting telomerase in blood-forming cells extended lifespan in immune-deficient zebrafish and partly restored gut health, operating without major changes in telomere…Boosting telomerase in blood-forming cells extended lifespan in immune-deficient zebrafish and partly restored gut health, operating without major changes in telomere length.

Preprint: experiments in zebrafishTelomerase and telomere maintenance
Biogerontology

A metabolic protein promotes blood stem cell aging in mice

In mice, genetically removing the protein reduced signs of cellular aging across multiple tissues and limited hallmarks of blood stem cell aging.In mice, genetically removing the protein reduced signs of cellular aging across multiple tissues and limited hallmarks of blood stem cell aging.

Experiments in miceMechanisms
Frontiers in Immunology

Fungus drives spleen aging in mice, eased by astragaloside IV

In aged mice, Kazachstania pintolopesii aggravated spleen damage and immune cell ferroptosis, while astragaloside IV treatment restored immune function and iron…In aged mice, Kazachstania pintolopesii aggravated spleen damage and immune cell ferroptosis, while astragaloside IV treatment restored immune function and iron homeostasis.

Experiments in miceInterventions
medRxiv

Clonal hematopoiesis is linked to frailty in human cohorts

An analysis of 730,088 participants across four cohorts found clonal hematopoiesis was strongly associated with incident frailty and faster functional decline.An analysis of 730,088 participants across four cohorts found clonal hematopoiesis was strongly associated with incident frailty and faster functional decline.

Preprint: cohort study of 730,088 peopleBlood and immune system