Genetic differentiation in traits is assumed to frequently occur in response to divergent natural selection. For example, developmental traits might respond to differences in climate. However, little is known about when and at which spatial scales environmental differences lead to genetic differentiation, and to what extent there is genetic differentiation also in trait plasticity.
View Article and Find Full Text PDFSci Total Environ
January 2025
Heavy metals in our direct environment have profound effects on human health and while some are essential for life, others can be toxic. In vivo studies often focus on clinical features caused by overexposure to, or by deprivation of a heavy metal. However, to understand the cellular impact of heavy metals on health, studies in healthy volunteers before symptom onset are needed.
View Article and Find Full Text PDFGenetic testing is recommended by various professional organizations as part of clinical guidelines during the evaluation of autism spectrum disorder (ASD) and other neurodevelopmental disorders. However, previous studies demonstrate that rates of genetic testing are low. This study aimed to identify the rates of genetic testing within a large university healthcare network and factors that may be associated with higher or lower rates.
View Article and Find Full Text PDFColorectal cancer (CRC) development is a gradual process in which progressive histological alterations of the intestinal mucosa damage occur over years. This process can be influenced by modifiable external factors such as lifestyle and diet. Most CRC cases (>80%) originate from conventional adenomas through the adenomatous pathway and usually harbour dysplastic cells, whereas the serrated pathway is less frequent (<20% cases) and comprises hyperplastic polyps and other polyps containing dysplastic cells.
View Article and Find Full Text PDFUnlabelled: In Latin America, scales have been built to assess Early Child Development (EChD), most of them for direct evaluations. In Chile, the Psychomotor Development Evaluation Scale (EEDP) and the Test of Psychomotor Development (TEPSI) were developed in the 70's and 80's and are still used in different Spanish-speaking countries, but have not been updated or revalidated. In response to the need for a new instrument built in Chile for the evaluation of EChD on a large scale, the Test of Early Learning and Development (TADI-2, for its acronym in Spanish) was built and standardized between 2009 and 2012.
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