The Effects of Seven-Day Exposure to Silver Nanoparticles on Fertility and Homeostasis of Zebrafish ().

Silver nanoparticles (AgNPs) are found in open waters, but the effect of their low concentrations on an organism's homeostasis is not fully understood. The aim of the study was to determine the short-term exposure effects of AgNPs coated by PvP (polyvinylpyrrolidone) on the homeostasis of livers and gonads in zebrafish. Sexually mature zebrafish were exposed for seven days to silver ions (0.

The Role of Transcription Factors in Gonad Development and Sex Differentiation of a Teleost Model Fish-Guppy ().

The guppy () is one of the world's most popular ornamental fish. Due to lecithotrophic viviparous, it is commonly used in toxicological studies and environmental monitoring. This study aimed to investigate the molecular mechanisms of gonad development and differentiation during guppy ontogenesis.

[Full-symptom ischemic stroke in the area of the left posterior cerebral artery].

A case of stroke with amnesia, hemianopsia, alexia without agraphia, colour anomia is reported. CT of the brain demonstrated presence of an ischaemic focus in the temporo-parieto-occipital area. Hemianopsia and colour anomia persisted longer than other symptoms.