BPA

BPA Full Name

Bisphenol A

BPA Introduction

Bisphenol A (BPA) is one of the most extensively studied environmental endocrine-disrupting chemicals because of its widespread use in polycarbonate plastics, epoxy resins, food-contact materials, medical devices, and numerous consumer products. Although regulatory efforts have reduced BPA use in some applications, continuous human exposure remains a concern due to its persistence in everyday environments and the increasing use of structurally related substitutes such as bisphenol S (BPS) and bisphenol F (BPF). Researchers and healthcare professionals continue to investigate BPA because even low-dose, long-term exposure may influence multiple biological systems through hormone-like activity rather than conventional chemical toxicity alone. BPA can interact with classical estrogen receptors (ERα and ERβ), the G protein-coupled estrogen receptor (GPER), estrogen-related receptor gamma (ERRγ), androgen receptors, thyroid hormone signaling pathways, and several nuclear receptors involved in metabolic regulation. These interactions make BPA a valuable research target for toxicology, endocrinology, developmental biology, and environmental health, particularly when evaluating chronic exposure, mixture effects, and sensitive developmental windows.

Current evidence indicates that BPA disrupts numerous cellular pathways extending well beyond estrogen signaling. Experimental studies have shown that BPA promotes oxidative stress, mitochondrial dysfunction, DNA damage, inflammatory responses, epigenetic remodeling, and altered cell-cycle regulation, ultimately affecting cellular homeostasis across multiple organs. Increasing attention has also focused on BPA-induced changes in lipid metabolism, glucose homeostasis, immune regulation, gut microbiota composition, and neuroendocrine communication. Recent toxicological reviews further demonstrate that BPA analogs can produce comparable biological effects, challenging the assumption that BPA-free products are inherently safer. Model organisms such as *Caenorhabditis elegans*, zebrafish, rodents, and human cell models have become essential tools for identifying conserved molecular mechanisms, revealing that bisphenols influence reproductive development, neuronal function, metabolic pathways, and stress-response networks through highly conserved signaling cascades. These findings provide important mechanistic insights for biomarker discovery, risk assessment, and the development of more predictive toxicity testing strategies.

Growing epidemiological and experimental evidence links BPA exposure with a broad spectrum of chronic diseases and adverse health outcomes, although the strength of evidence varies across conditions and continues to be actively investigated. Reproductive disorders remain among the most consistently studied associations, including impaired fertility, reduced ovarian reserve, polycystic ovary syndrome, endometriosis, altered sperm quality, and adverse pregnancy outcomes. BPA has also been associated with metabolic disorders such as obesity, insulin resistance, type 2 diabetes, metabolic dysfunction-associated steatotic liver disease (MASLD), and cardiovascular abnormalities through mechanisms involving chronic inflammation, oxidative injury, and disrupted lipid metabolism. In the nervous system, BPA exposure has been investigated for its potential contribution to abnormal neurodevelopment, cognitive impairment, behavioral changes, and increased susceptibility to neurodegenerative disorders through neuro-immune dysregulation. Additional studies suggest possible roles in immune dysfunction, thyroid disorders, hormone-dependent cancers including breast and prostate cancer, and developmental abnormalities mediated by epigenetic alterations. While ongoing research continues to refine exposure thresholds and causal relationships, BPA remains a high-priority environmental toxicology target because understanding its molecular mechanisms is critical for improving human health risk assessment, identifying susceptible populations, and guiding the design of safer chemical alternatives.

Alternate Names for BPA

Bis(p-hydroxyphenyl)propane; Bisferol A; bisferola; bisferola(czech); bisphenola(bpa); bis-Phenolpropane; di-2,2-(4-Hydroxyphenyl)propane; Dian; Diano; Dimethyl bis(p-hydroxyphenyl)methane; Bisphenol A; BPA

• 1.Buoso E, et al.; Endocrine Disrupting Toxicity of Bisphenol A and Its Analogs: Implications in the Neuro-Immune Milieu. J Xenobiot. 2025, 15(1):13.
  2.Tricotteaux-Zarqaoui S, et al.; Endocrine disruptor chemicals exposure and female fertility declining: from pathophysiology to epigenetic risks. Front Public Health. 2024, 12:1466967.