Medical principles and practice : international journal of the Kuwait University, Health Science Centre
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In humans, males are born slightly in excess of females. Many factors have been shown to affect this ratio, including stressful events such as terrorist attacks. Two shootings occurred in early August 2019 in the Oregon District in Dayton, Montgomery County, Ohio, and in El Paso County, Texas, in the USA. This study was carried out in order to identify whether there were any effects on sex ratio at birth at the state or county level 3-5 months later. ⋯ It has been postulated that male fetal loss in pregnant women during stressful periods may occur in accordance with the Trivers-Willard hypothesis. Several studies have found significant effects after terrorist attacks in the USA (as well as in other countries), but this study did not reveal such effects. This may be due to several reasons including underpowered datasets and the possibility that populations may be becoming relatively immured to these events.
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The aim of the present study was to analyze the possible changes caused by the maternal ingestion of different types of fatty acids during pregnancy in the proinflammatory state in the odontogenesis of the fetuses. ⋯ Thus, lipid consumption in the maternal diet remains a topic to be explored in embryonic development, despite not causing morphological changes to the tooth germ of rats.