Editorial: Genotoxic pathways of reproductive outcomes

The present Research Topic aims to provide an overview about the detrimental effects of the endocrine disruptors on multiple aspects of human and animal Reproductive health. In "Elucidating the mechanisms and mitigation strategies for six-phthalate-induced toxicity in male germ cells", Kim et al. evaluate the cumulative effects of a mixture of Phthalate Esters on differentiated male germ cells. Indeed, they stimulate Reactive Oxygen Species generation and induce apoptosis. Moreover, Phthalate Esters are capable in inducing autophagy. Those effects have been demonstrated on a large sample clustering, and yet reverted using a triple inhibitor combination treatment.In "Obesity May Impair Response to Ovarian Stimulation. A Retrospective Observational Study on Oocyte Quality", Iavarone et al. focus on women's Fertility outcomes basing on their Body Mass Index. Abdominal body fat distribution is important because anovulatory women have a greater waist circumference than ovulatory ones with equal Body Mass Index. In particular, they demonstrate that Anti-Müllerian Hormone levels are significantly decreased in obese women compared to Normal Weight and Overweight, thus emphasizing the importance of assessing weight in infertility's treatment planning.The PTEN/PI3K/AKT Signaling Pathway", re-examine the toxicity of Zearalenone, a natural contaminant present in food and feed products which shows a negative impact on the reproductive potential of domestic animals in China. Their findings highlighted the deleterious influence of Zearalenone in inducing of Ovarian Cancer-related genes through the PTEN/PI3K/AKT signaling pathway in donkey's granulosa cells in vitro.In "A Systematic Review of the Effects of Nanoplastics on Fish", Dasmahapatra et al. focus on plastics as a world-wide concern has been amplified due to their contamination in the environment, their capability to pass biological barriers in multiple organisms, thus polluting the environment. The most studied specie -e.g., Zebrafish -suffers from oxidative stress, decreased locomotor activities, altered immunity, lipid metabolism and neurotoxicity. Those are due to the progressive accumulation of nano-plastics during different stages of growth. In addition, they revised how nano-plastics imbalance steroidogenesis' pathways.Finally, in "Differentially Expressed and Alternately Spliced Genes as a Novel Tool for Genotoxicity: A Computerized Study In ATT-Myc Transgenic Mice for the Recognition of Genotoxic and Non-Genotoxic Chemical", Alghamdi et al. study the application of hazardous chemicals on transgenic mice, showing that the most expressed gene after hybridization is identified as a new tumor suppressor gene in the context of hepatocellular carcinoma.Taken together, with the growing exposure to environmental contaminants, studies on genotoxins are crucial in environmental toxicology as they can contribute to the development of diseases and other health-related problems in humans. Although the classification of genotoxins is a monumental tusk, to understand the mechanism of genotoxicity, the effects induced by pesticides, heavy metals, pharmaceutical products, persistent organic pollutants can be taken in to account. One of the basic mechanisms in toxicology is the activation of reactive oxygen or nitrogen species, which is involved from DNA damage to cellular functions. The articles published through the current Research Topic, "Genotoxic Pathways of Reproductive Outcomes" threw lights on mechanisms from autophagy to oxidative stress, techniques from in vivo to in vitro, models from cell lines to whole animals and chemicals from phthalates to Nanoplastics; therefore, the articles have significant impact to the readers, Researchers, and investigators involved in studying genotoxins.