Year: 2025

The pharmaceutical landscape has witnessed growing interest in deuterated drugs, a class of therapeutics developed by replacing specific hydrogen atoms in drug molecules with deuterium, a naturally occurring, stable, and non-radioactive isotope of hydrogen. While chemically similar to hydrogen, deuterium possesses an additional neutron, resulting in stronger carbon–deuterium bonds and measurable effects on drug metabolism…

Introduction In modern toxicology and pharmaceutical science, understanding how chemicals and drugs interact with the human body goes far beyond metabolism alone. A less visible, but equally critical, ayer of biological control lies in membrane transporters. These specialized proteins act as molecular gatekeepers, regulating the movement of endogenous substances, xenobiotics, and pharmaceuticals across biological membranes….

Introduction The classical understanding of toxicology has long relied on the dose–response relationship to predict adverse effects. However, modern research increasingly shows that chemical exposure does not always result in immediate or visible tissue damage. Instead, many substances subtly disrupt cellular functions, weakening biological defenses and increasing vulnerability to secondary insults. These effects are particularly…

A structural shift in chemical governance is underway For decades, per- and polyfluoroalkyl substances (PFAS) have been integral to modern manufacturing. Their resistance to heat, chemical stress, and degradation enabled their widespread use in electronics, industrial equipment, textiles, coatings, membranes, seals, and numerous advanced applications. That period of regulatory tolerance is rapidly closing. Across Europe,…

Why Chemical Risk Assessment Matters Every chemical, whether used in medicines, cosmetics, food, or industrial processes, carries some degree of risk. The purpose of chemical risk assessment is not to eliminate risk entirely, but to understand, quantify, and manage it effectively. In public health, environmental protection, and regulatory decision-making, risk assessment serves as a critical…

The assessment of neonatal toxicity represents one of the most complex and evolving areas of toxicological science. Unlike adults, neonates, infants, and juveniles undergo rapid and highly coordinated developmental processes that can significantly influence their response to drugs, chemicals, and environmental toxicants. Understanding these differences has become critical for human health risk assessment, particularly where…