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Male secreted short glycoproteins link sperm competition to the reproductive isolation of species.
Curr Biol
January 2025
Department of Biology, University of Maryland, College Park, MD 20742, USA; Biological Sciences Graduate Program, University of Maryland, College Park, MD 20742, USA. Electronic address:
Sperm competition is found across multicellular organisms using both external and internal fertilization. Sperm competition and post-copulatory cryptic female choice can promote incompatibility between species due to the antagonistic coevolution of the sexes within a species. This between-species incompatibility is accelerated and markedly asymmetrical when sexual mode differs, producing the "weak inbreeder, strong outcrosser" (WISO) pattern.
View Article and Find Full Text PDFMentoring as a management practice to retain newly certified professionals in healthcare organisations.
J Health Organ Manag
January 2025
Department of Pedagogical, Curricular and Professional Studies, Faculty of Social Science, University of Gothenburg, Goteborg, Sweden.
Purpose: The purpose of this study is to investigate how mentors can convince young, certified, inexperienced employees to remain in a healthcare organisation, and how mentors address "stay or quit" when mentees' lived experiences reveal feelings of insufficiency as crisis in their daily work. We explore how turnover is affected by the mentors' and mentees' discussions within the manager's domain.
Design/methodology/approach: Within the framework of crisis management, the study employs qualitative content analysis of 21 interview responses from mentors, mentees and managers.
Advances in the Development and Application of Human Organoids: Techniques, Applications, and Future Perspectives.
Cell Transplant
January 2025
Department of Laboratory Medicine, Lishui Second People's Hospital, Lishui, China.
Organoids are three-dimensional (3D) cell cultures derived from human pluripotent stem cells or adult stem cells that recapitulate the cellular heterogeneity, structure, and function of human organs. These microstructures are invaluable for biomedical research due to their ability to closely mimic the complexity of native tissues while retaining human genetic material. This fidelity to native organ systems positions organoids as a powerful tool for advancing our understanding of human biology and for enhancing preclinical drug testing.
View Article and Find Full Text PDFHuman Dermal Microvascular Arterial and Venous Blood Endothelial Cells and Their Use in Bioengineered Dermo-Epidermal Skin Substitutes.
Small Methods
January 2025
Tissue Biology Research Unit, Department of Surgery, University Children's Hospital Zurich, Lenggstrasse 30, Zurich, 8008, Switzerland.
The bioengineering of vascular networks is pivotal to create complex tissues and organs for regenerative medicine applications. However, bioengineered tissues comprising an arterial and venous plexus alongside a lymphatic capillary network have not been explored yet. Here, scRNA-seq is first employed to investigate the arterio-venous endothelial cell marker patterning in human fetal and juvenile skin.
View Article and Find Full Text PDFAssessing the impact of TiO nanomaterials on intestinal cells: New evidence for epithelial translocation and potential pro-inflammatory effects.
Toxicology
January 2025
National Institute of Health Doutor Ricardo Jorge, I.P (INSA), Department of Human Genetics, Lisbon, Portugal; bCentre for Toxicogenomics and Human Health (ToxOmics), NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal. Electronic address:
Understanding the potential impact of nanomaterials (NMs) on human health requires further investigation into the organ-specific nano-bio interplay at the cellular and molecular levels. We showed increased chromosomal damage in intestinal cells exposed to some of in vitro digested Titanium dioxide (TiO) NMs. The present study aimed to explore possible mechanisms linked to the uptake, epithelial barrier integrity, cellular trafficking, as well as activation of pro-inflammatory pathways, after exposure to three TiO-NMs (NM-102, NM-103, and NM-105).
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