immunosenescence
Pronunciation: ih-myoo-noh-suh-NES-uhns
Age-related decline in immune system function affecting both innate and adaptive immunity in pediatric patients with chronic conditions.
Full Definition
The progressive deterioration of immune system function that occurs with aging, though in pediatric immunology it refers to premature immune aging seen in children with chronic inflammatory conditions or immunodeficiencies. This process involves reduced T-cell diversity, altered cytokine production, and decreased vaccine responses. Editors should note this term is increasingly used in pediatric literature to describe immune dysfunction beyond typical childhood development patterns.
Usage
Usage note: Distinguish from normal immune system maturation in children; this term specifically refers to pathological aging processes.
In Context
- "Premature immunosenescence was observed in the cohort of children with chronic kidney disease." — clinical research paper
- "The patient's immunosenescence markers suggested accelerated immune aging despite her young chronological age." — case report