Results 41 to 50 of about 62,119 (279)

Functional parameters of spermatozoa obtained by a new selection device

FEBS Open Bio, EarlyView.
This study compares density gradient centrifugation and the LensHooke CA0™ device for sperm separation. DGC requires multiple steps, specialized equipment, and technical expertise. In contrast, the CA0 device offers key practical and methodological advantages, resulting in a faster, simpler, and more affordable sperm selection method.
Julio C. Chávez, Paulina Torres, Gabriela Carrasquel‐Martínez, María G. Figueroa‐Méndez, Diana Flores, Lina Villar, Israel Maldonado, Marcela B. Trevino, Claudia Treviño   +8 more
wiley   +1 more source

Plasmodium falciparum gametocytes display global chromatin remodelling during sexual differentiation

BMC Biology, 2023
Background The protozoan malaria parasite Plasmodium falciparum has a complex life cycle during which it needs to differentiate into multiple morphologically distinct life forms.
Myriam D. Jeninga, Jingyi Tang, Shamista A. Selvarajah, Alexander G. Maier, Michael F. Duffy, Michaela Petter   +5 more
doaj   +1 more source

Retrotransposon Expression Is Upregulated in Adulthood and Suppressed during Regeneration of the Limb in the Axolotl (Ambystoma mexicanum)

Advanced Biology, EarlyView.
The axolotl's remarkable regenerative abilities decline with age, the causes may include the numerous repetitive elements within its genome. This study uncovers how Ty3 retrotransposons and coexpression networks involving muscle and immune pathways respond to aging and regeneration, suggesting that transposons respond to physiological shifts and may ...
Samuel Ruiz‐Pérez, Nicolás Alcaraz, Karla Torres‐Arciga, José Antonio Ocampo‐Cervantes, Alejandra Cervera, Clementina Castro‐Hernández, Cynthia Gabriela Sámano‐Salazar, Ernesto Soto‐Reyes, Rodrigo González‐Barrios   +8 more
wiley   +1 more source

Differential cohesin loading marks paired and unpaired regions of platypus sex chromosomes at prophase I

Scientific Reports, 2017
Cohesins are vital for chromosome organisation during meiosis and mitosis. In addition to the important function in sister chromatid cohesion, these complexes play key roles in meiotic recombination, DSB repair, homologous chromosome pairing and ...
Aaron E. Casey, Tasman J. Daish, Jose Luis Barbero, Frank Grützner   +3 more
doaj   +1 more source

Chromatin modification by PSC occurs at one PSC per nucleosome and does not require the acidic patch of histone H2A. [PDF]

PLoS ONE, 2012
Chromatin architecture is regulated through both enzymatic and non-enzymatic activities. For example, the Polycomb Group (PcG) proteins maintain developmental gene silencing using an array of chromatin-based mechanisms.
Stanley M Lo, Kyle A McElroy, Nicole J Francis   +2 more
doaj   +1 more source

Advanced Multipurpose Spectroscopic Nanobio‐Device for Concurrent Lab‐on‐a‐Chip Label‐Free Separation and Detection of Extracellular Vesicles as Key‐Biomarkers for Point‐of‐Care Cardiovascular Disease Diagnostics

Advanced Healthcare Materials, EarlyView.
AIMSPec‐LoC is a novel lab‐on‐a‐chip platform integrating size‐based extracellular vesicle (EVs) separation with label‐free Raman spectroscopy and AI‐powered classification via SKiNET. This high‐throughput, portable system enables real‐time, multiplexed molecular fingerprinting of EVs from biofluids, offering transformative potential for early, non ...
Emma Buchan, Jonathan James Stanley Rickard, Mark Robert Thomas, Pola Goldberg Oppenheimer   +3 more
wiley   +1 more source

Integration of Bioengineered Tools in Assisted Reproductive Technologies

Advanced Healthcare Materials, EarlyView.
A conceptual illustration depicting the collaboration between a medical professional (right) and a scientist (left). Their connection highlights the integration of scientific research and clinical practice. This representation underscores the role of emerging technologies in bridging fundamental research with applied reproductive healthcare.
Aslı Ak, Edith Coonen, Ron van Golde, Erik Vrij   +3 more
wiley   +1 more source

Human male meiotic sex chromosome inactivation. [PDF]

PLoS ONE, 2012
In mammalian male gametogenesis the sex chromosomes are distinctive in both gene activity and epigenetic strategy. At first meiotic prophase the heteromorphic X and Y chromosomes are placed in a separate chromatin domain called the XY body.
Marieke de Vries, Sanne Vosters, Gerard Merkx, Kathleen D'Hauwers, Derick G Wansink, Liliana Ramos, Peter de Boer   +6 more
doaj   +1 more source

Designing the Next Generation of Biomaterials through Nanoengineering

Advanced Materials, EarlyView.
Nanoengineering enables precise control over biomaterial interactions with living systems by tuning surface energy, defects, porosity, and crystallinity. This review highlights how these nanoscale design parameters drive advances in regenerative medicine, drug delivery, bioprinting, biosensing, and bioimaging, while outlining key translational ...
Ryan Davis Jr., Ishaan Duggal, Nicholas A. Peppas, Akhilesh K. Gaharwar   +3 more
wiley   +1 more source

Ultrastructural and immunocytochemical analysis of the XY body in rat and Guinea pig

European Journal of Histochemistry, 2009
The formation of the XY body involves the compaction of the extended chromatin to form a mesh of fibrogranular structures. During this process the ribonucleoprotein particles (RNP), which were associated with the chromatin filaments progressively ...
OM Echeverría, R Benavente, R Ortiz, GH Vázquez-Nin   +3 more
doaj   +1 more source