Developmental Biology is a growing discipline in Chile. It started in the 1950s when Luis Izquierdo challenged the traditional descriptive perspective of embryology and comparative anatomy to explore the mechanisms underlying the origin of form. After this initial drive, Claudio Barros, beginning in the late 1960s and Juan Fernández, in the late 1970s, contributed with unique and complementary facets to the early growth of the discipline. In the 1980s, the community of developmental biologists created its first forms of association together with the reproduction biology community, and in 1993 the first international course of developmental biology was organised. During the 1990s and 2000s, a group of young investigators arrived in Chile after postdocs in Europe and the US to build the first research centres of developmental biology, fostering the discipline to an unprecedented level. In the 2010s, as these centres consolidated, a stream of young developmental biologists established new labs at several institutions, expanding the community size and broadening its scope. The recent organisation of developmental biology meetings fostered the sense of community and nurtured the need of formal organisation, setting the bases for the foundation of the Chilean Society for Developmental Biology. Today, the community of developmental biologists is a mix of young and experienced investigators working in a variety of geographical locations, institutions, topics and model organisms. These characteristics are a strength of an active community that is pushing the discipline to the next level, aiming to make it a relevant actor in national and international settings.
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Arch Toxicol
January 2025
Applied Biology Department, Miguel Hernández de Elche University, Elche, Spain.
Chlorpyrifos (CPF) is an organophosphorus pesticide of concern because many in vivo animal studies have demonstrated developmental toxicity exerted by this substance; however, despite its widespread use, evidence from epidemiological studies is still limited. In this study, we have collected all the information generated in the twenty-first century on the developmental toxicity of CPF using new approach methodologies. We have critically evaluated and integrated information coming from 70 papers considering human, rodent, avian and fish models.
View Article and Find Full Text PDFDig Dis Sci
January 2025
Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Yeman St, Chamran Expressway, P.O. Box 19857-17413, Tehran, Iran.
Colorectal cancer (CRC) is ranked as the second leading cause of cancer-related deaths globally, necessitating urgent advancements in therapeutic approaches. The emergence of groundbreaking therapies, including chimeric antigen receptor-T (CAR-T) cell therapies, oncolytic viruses, and immune checkpoint inhibitors, marks a transformative era in oncology. These innovative modalities, tailored to individual genetic and molecular profiles, hold the promise of significantly enhancing patient outcomes.
View Article and Find Full Text PDFPhysiol Genomics
January 2025
Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, D-18196 Dummerstorf, Germany.
Decades of artificial selection have markedly enhanced egg production efficiency, yet the epigenetic underpinnings, notably DNA methylation dynamics in the gut, remain largely unexplored. Here, we investigate how breeds and developmental stages influence DNA methylation profiles in laying hens, and their potential relationship to laying performance and gut health. We compared two highly selected laying hen strains, Lohmann Brown-Classic (LB) and Lohmann LSL-Classic (LSL), which exhibited similar egg production but divergent physiological, metabolic, and immunological characteristics.
View Article and Find Full Text PDFJ Dev Orig Health Dis
January 2025
Department of Nutrition, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil.
To clarify the effects of kefir in critical periods of development in adult diseases, we study the effects of kefir intake during early life on gut microbiota and prevention of colorectal carcinogenesis in adulthood. Lactating Wistar rats were divided into three groups: control (C), kefir lactation (KL), and kefir puberty (KP) groups. The C and KP groups received 1 mL of water/day; KL dams received kefir milk daily (10 CFU/mL) during lactation.
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