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Speciation studies in the genomic era.
Yi Chuan
January 2025
State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
Since Darwin's era, speciation has been one of the most central issues in evolutionary biology studies. Understanding the processes of species origin is crucial in deepening our understanding of the formation of species biodiversity, which is essential for their protections. However, speciation research has been challenging due to the rather complex evolutionary histories of many extant species.
View Article and Find Full Text PDFProgress on ancient DNA investigation of Late Quaternary mammals in China.
Yi Chuan
January 2025
State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430078, China.
It has been more than 40 years since the beginning of exploring the genetic composition of ancient organisms from the perspective of ancient DNA. In the recent 20 years, with the development and application of high-throughput sequencing technology platforms and the improved efficiency of retrieving highly fragmented DNA molecules, ancient DNA research moved forward to a brand-new era of deep-time paleogenomics. It not only solved many controversial phylogenetic problems, enriched the migration and evolution details of various organisms including humans, but also launched exploration of the molecular responses to climate changes in terms of "whole genomic-big data-multi-species" level.
View Article and Find Full Text PDFImplications of EBV-Encoded and EBV-Related miRNAs in Tumors.
Curr Gene Ther
January 2025
Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow-226028, India.
Over 90% of people are infected with the human g-herpesvirus known as the Epstein- Barr virus (EBV). Cancers, such as gastric carcinoma, non-Hodgkin's lymphoma, nasopharyngeal carcinoma, Hodgkin's lymphoma, and Burkitt lymphoma, are thought to be linked with EBV. It is noteworthy that the first virus discovered that encodes microRNAs (miRNAs) was EBV, and these miRNAs show expression at the different phases of EBV infection.
View Article and Find Full Text PDFBackground: It is increasingly recognized that policies played a role in mitigating or exacerbating health inequities during the COVID-19 pandemic. While US counties were particularly active in policymaking, limited work has characterized geographic and temporal variation in pandemic-era policymaking at the local level, a prerequisite for later studies examining the health effects of these policies. This paper fills this gap by characterizing county-level COVID-19-related policy trajectories over time using a novel national policy database and innovative methods.
View Article and Find Full Text PDFEffectiveness of Relactation Supportive Program in Sustaining Exclusive Breastfeeding: A Prospective Observational Study.
Cureus
December 2024
Department of Pediatrics, Maharaja Suheldev Autonomous State Medical College, Bahraich, IND.
Introduction: Relactation is the process of re-establishing breastfeeding after stopping or after a period of little breastfeeding. The study aimed to assess the Relactation Supportive Program (RSP)'s efficacy in sustaining breastfeeding and to determine the impact of RSP on breastfeeding initiation, timing, and correlation with the lactation gap.
Methods: A prospective observational study was done with 60 infant-mother dyads, aged seven days to 14 weeks who stopped breastfeeding for 6-28 days or never breastfed.
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