Neuroinflammation and the Female Brain: Sex-Specific Mechanisms Underlying Mood Disorders and Stress Vulnerability.
Level 5 - mechanism / opinion, no new human data
Narrative review synthesizing mechanistic and clinical literature without a systematic review protocol or primary empirical data
PubMed 41598293 · doi:10.3390/life16010139
What was done
This narrative review synthesized current neuroscientific and biological literature exploring how sex-specific neuroinflammatory mechanisms, fluctuating sex hormones (estrogen and progesterone across puberty, the menstrual cycle, pregnancy, postpartum, and perimenopause), and immune-neural circuit interactions contribute to mood disorders and stress susceptibility in women.
What was found
The abstract reports no numerical data or quantitative effect sizes. It describes qualitative and mechanistic pathways whereby ovarian hormone shifts across the female lifespan regulate microglial activity, cytokine release, mitochondrial function, and HPA axis reactivity in emotion-regulating brain circuits (amygdala, hippocampus, and prefrontal cortex).
Why it matters
The paper outlines an integrative neuroimmune framework to explain sex differences in psychiatric vulnerability and highlight potential targets for female-tailored diagnostics and interventions.
Limits
This is a narrative review that presents no primary empirical data, provides no systematic search protocol or quantitative synthesis, and does not assess the risk of bias across the underlying studies.