ethanol

Overview

Ethanol is a small, volatile, water-miscible alcohol with broad relevance in chemistry, biology, medicine, and public health. In biomedical contexts, it is best known as the principal intoxicating component of alcoholic beverages and as a widely used laboratory solvent, preservative, and extraction medium. Because of its physicochemical properties, ethanol can interact with biological membranes, alter protein and lipid environments, and serve as a carrier or processing aid in pharmaceutical and food-related applications.

From a medical perspective, ethanol is important both as a modifiable exposure and as an experimental reagent. Alcohol consumption is a major preventable risk factor in cancer prevention research, liver disease, and behavioral health, while controlled ethanol exposure is also used in mechanistic studies of metabolism, sensory-motor function, and fermentation. Recent publications also highlight ethanol’s role as an extraction solvent for bioactive compounds, including Phenolic Acids, flavonoids, and astaxanthin, and as a component in analytical and formulation studies.

Focus of Latest Publications

Recent investigations have examined ethanol as an active therapeutic agent in minimally invasive vascular interventions. Ethanol-based injectable gel formulations, incorporating ethyl cellulose polymers, have emerged as sclerosing agents for treating vascular malformations including arteriovenous malformations, venous malformations, and lymphatic malformations. Researchers have characterized the production process, stability, and intravascular behavior of these formulations through injection models that simulate flow conditions both in vitro and in vivo, demonstrating effective vessel sclerosis with limited adverse effects. This work has clarified the physical properties and therapeutic mechanism of ethanol-based polymer gels, advancing injectable options for patients with these abnormal vessel conditions who have limited current treatment alternatives.

In pharmaceutical chemistry, ethanol functions as a co-solvent component in metered-dose inhaler (MDI) formulations. Recent studies have applied secondary electrospray ionization mass spectrometry coupled with high-resolution detection (SESI-HRMS) to characterize multi-component aerosol formulations containing ethanol alongside active pharmaceutical ingredients and other excipients. This methodology enabled real-time, unambiguous identification of all major components in complex MDI formulations, including ethanol, confirming the comprehensive analysis capability of SESI-HRMS for quality control and formulation verification of inhaled medications.

Ethanol has also been investigated as an experimental agent in neurotoxicology, particularly regarding its effects on sensorimotor and behavioral phenotypes. Studies in the model organism Caenorhabditis elegans examined the consequences of 24-hour ethanol exposure, subsequent withdrawal, and withdrawal relief on motor performance and behavior. These investigations identified specific genes in dopaminergic and serotonergic signaling pathways—including dop-3 and tph-1—as contributors to ethanol's physiological effects, linking molecular mechanisms to observable behavioral changes and providing insights into the neurobiological basis of alcohol's effects on nervous system function.