introduction: the main goal of this ex vivo study was to assess and compare the cellular and electrophysiological effects of two dental biomaterials, white mineral trioxide aggregate (wmta) and calcium enriched mixture (cem) cement, on neuronal cell excitability and electrical properties. materials and methods: a conventional intracellular current clamp technique was used to study the cellular ...

The International Standardization Organization recently launched a soil toxicity test with snails (Helix aspersa). We assessed the sensitivity of this test for seven polycyclic aromatic compounds. Control animals had 100% survival and low variability for growth measurements. Maximum exposure concentrations of 2800 mg/kg (4000 mg/kg for acridine) had no effect on survival. Similarly, growth (bio...

Snail slime is obtained from Helix aspersa Müller and H. var. maxima. Two types of mucus are obtained: lymosine cryptosine, the one used in medicine cosmetology. The work aimed to present method obtaining snail slime, analyze its qualitative quantitative composition properties based on literature data. This raw material, addition antibacterial, antifungal, antimicrobial, antiviral anticancer pr...

Snail-borne lungworms exert an enormous toll on the health and welfare of animals and humans. Of these parasites, Aelurostrongylus abstrusus and Troglostrongylus brevior affect the respiratory tract of felids. These lungworms share both the ecological niche and the species of snail (Helix aspersa) acting as intermediate host. Recently, the ability of H. aspersa to shed infective third-stage lar...

Phenotypic selection is widely recognized as the primary cause of adaptive evolution in natural populations, a fact that has been documented frequently over the last few decades, mainly in morphological and life-history traits. The energetic definition of fitness predicts that natural selection will maximize the residual energy available for growth and reproduction, suggesting that energy metab...