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| http://dx.doi.org/10.1371/journal.ppat.1011394 | DOI Listing |
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PRDX5 and PRDX6 translocation and oligomerization in bull sperm: a response to cryopreservation-induced oxidative stress.
Cell Commun Signal
January 2025
Institute of Animal Reproduction and Food Research, Olsztyn, Poland.
Cryopreservation of bull sperm, crucial for breeding and assisted reproduction, often reduces sperm quality due to oxidative stress. This study examines how oxidative stress during cryopreservation affects peroxiredoxin 5 (PRDX5) and peroxiredoxin 6 (PRDX6) proteins, leading to their translocation and oligomerization in bull sperm. Increased reactive oxygen species (ROS) and nitric oxide (NO) levels were linked to reduced mitochondrial potential, higher DNA fragmentation, and increased membrane fluidity, prompting PRDX5 to move intracellularly and PRDX6 to the cell membrane.
View Article and Find Full Text PDFSubgroups of cognitive impairments in schizophrenia characterized by executive function and their morphological features: a latent profile analysis study.
BMC Med
January 2025
Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China.
Background: The heterogeneity of cognitive impairments in schizophrenia has been widely observed. However, reliable cognitive boundaries to differentiate the subgroups remain elusive. The key challenge for cognitive subtyping is applying an integrated and standardized cognitive assessment and understanding the subgroup-specific neurobiological mechanisms.
View Article and Find Full Text PDFStructural and functional social support in UK military veterans during the COVID-19 pandemic and associations with mental health and wellbeing: a cross-sectional study.
BMC Public Health
January 2025
King's Centre for Military Health Research, King's College London, London, SE5 9RJ, UK.
Background: The coronavirus disease (COVID-19) pandemic led to the implementation of social distancing laws in the UK. This had several negative consequences on health, wellbeing and social functioning within the general population. Military veterans may have had unique experiences of social isolation during this time.
View Article and Find Full Text PDFMigration of primordial germ cells and their relationship of PGCs with sex development in transgenic germline-specific fluorescent freshwater angelfish (Pterophyllum scalare).
Sci Rep
January 2025
Marine Molecular Genetics & Biotechnology Laboratory, Department of Aquaculture, National Taiwan Ocean University, Keelung, 202301, Taiwan.
Primordial germ cells (PGCs), the progenitors of gametes, are essential for teleost reproduction. While their formation is conserved across teleosts, the activation, migration routes, and localization periods vary among species. In this study, we developed a novel transgenic line, Tg(ddx4:TcCFP13-nanos3), based on the Nile tilapia genome, to label PGCs with clear fluorescent signals in the freshwater angelfish (Pterophyllum scalare).
View Article and Find Full Text PDFMicroscopic structural origin of slow dynamics in glass-forming liquids.
Nat Mater
January 2025
Department of Fundamental Engineering, Institute of Industrial Science, The University of Tokyo, Tokyo, Japan.
Supercooled liquids display sluggish dynamics, often attributed to their structural characteristics, yet the underlying mechanism remains elusive. Here we conduct numerical investigations into the structure-dynamics relationship in model glass-forming liquids, with a specific focus on an elementary particle rearrangement mode known as the 'T1 process'. We discover that the ability of a T1 process to preserve glassy structural order before and after is pivotal towards determining a liquid's fragility-whether it exhibits super-Arrhenius-like or Arrhenius-like behaviour.
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