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Translocating individuals from multiple source populations is one way to bolster genetic variation and avoid inbreeding in newly established populations. However, mixing isolated populations, especially from islands, can potentially lead to outbreeding depression and/or assortative mating, which may limit interbreeding between source populations. Here, we investigated genetic consequences of mixing individuals from two island populations of the dibbler () in an island translocation.
View Article and Find Full Text PDFBasic Epigenetic Mechanisms.
Subcell Biochem
January 2025
Department of Biochemistry and Medical Genetics, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.
The human genome consists of 23 chromosome pairs (22 autosomes and one pair of sex chromosomes), with 46 chromosomes in a normal cell. In the interphase nucleus, the 2 m long nuclear DNA is assembled with proteins forming chromatin. The typical mammalian cell nucleus has a diameter between 5 and 15 μm in which the DNA is packaged into an assortment of chromatin assemblies.
View Article and Find Full Text PDFReconfigured metabolism brain network in asymptomatic Creutzfeldt-Jakob disease.
Neurobiol Dis
January 2025
Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China; National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital, Capital Medical University, Beijing, China. Electronic address:
Background: Investigating brain metabolic networks is crucial for understanding the pathogenesis and functional alterations in Creutzfeldt-Jakob disease (CJD). However, studies on presymptomatic individuals remain limited. This study aimed to examine metabolic network topology reconfiguration in asymptomatic carriers of the PRNP G114V mutation.
View Article and Find Full Text PDFChronological trend of social contact patterns in Japan after the emergence of COVID-19.
J Infect Public Health
February 2025
Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan; Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium. Electronic address:
Background: The social contact data for Japan as of 2022 showed a substantially decreased number of contacts compared with before the COVID-19 pandemic. However, it is unclear whether social contact continues to be depressed following the end of countermeasures against the pandemic. There is also scarce evidence regarding the influence of influenza-like illnesses (ILIs) on social contacts in Japan.
View Article and Find Full Text PDFMixed-mode separation of antisense oligonucleotides using a single column with complementary anion-exchange and hydrophobic interaction chromatography approaches.
J Chromatogr A
January 2025
Genetics Guided Dementia Discovery (G2D2), Eisai, Inc. 35 Cambridge Park Drive, Suite 200, Cambridge, MA, 02140, USA.
The current study investigates the use of mixed-mode chromatography as a combination of anion-exchange (AEX) and hydrophobic interaction chromatography (HIC) for the analysis and purification of single-stranded antisense oligonucleotides with stereo-controlled phosphorothioate inter- nucleotide linkages. Initially a Scherzo-SS-C18 trimodal stationary phase with reversed-phase/AEX/ cation-exchange (CEX) functionalities is systematically evaluated to reveal the presence of U-shaped retention composed of two retention modes namely AEX and HIC, where the latter was also observed on related trimodal Scherzo SM and SW analogues. For the first time, retention and separation of deprotected oligonucleotides was described on a single mixed-mode column using a combination of AEX and HIC.
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