Endocrine disruptors as a threat to neurological function

Area of Science:

• Environmental Science
• Endocrinology
• Neuroscience

Background:

• Endocrine disruption research began in the 1960s, initially focusing on wildlife declines linked to pesticides like DDT.
• The concept expanded to include human reproductive issues, such as infertility and testicular cancer, with disturbed gonadal hormones as a likely cause.
• The critical role of gonadal hormones in brain development and sexual differentiation has spurred extensive research into various chemical classes.

Purpose of the Study:

• To investigate the under-explored impact of endocrine-disrupting chemicals (EDCs) on the adult and aging brain.
• To highlight the importance of gonadal hormones in maintaining optimal brain function throughout maturity and senescence.
• To emphasize the need for increased research into EDCs, aging, and neurogenesis.

Main Methods:

• Literature review and synthesis of existing research on endocrine disruption.
• Analysis of the role of gonadal hormones in neurogenesis and neuroprotection.
• Identification of research gaps concerning EDCs and the aging brain.

Main Results:

• EDCs have been linked to wildlife population declines and human reproductive disorders.
• Gonadal hormones are essential for adult brain function, neurogenesis, and protection against neurodegenerative diseases like dementia.
• Current research on EDCs, aging, and neurogenesis is limited but indicates a significant area for future study.

Conclusions:

• The influence of EDCs on the adult and aging brain warrants urgent and vigorous investigation.
• Understanding these effects is crucial for public health, given the role of hormones in cognitive function and neuroprotection.
• Further research is needed to address the overlooked impact of EDCs on brain health across the lifespan.