Results 11 to 20 of about 39,110 (117)

Live cell imaging of meiosis in Arabidopsis thaliana

open access: yeseLife, 2019
To follow the dynamics of meiosis in the model plant Arabidopsis, we have established a live cell imaging setup to observe male meiocytes. Our method is based on the concomitant visualization of microtubules (MTs) and a meiotic cohesin subunit that ...
Maria A Prusicki   +8 more
doaj   +1 more source

Parvalbumin-positive interneurons mediate neocortical-hippocampal interactions that are necessary for memory consolidation

open access: yeseLife, 2017
Following learning, increased coupling between spindle oscillations in the medial prefrontal cortex (mPFC) and ripple oscillations in the hippocampus is thought to underlie memory consolidation.
Frances Xia   +5 more
doaj   +1 more source

The Development of a Monitoring System Using a Wireless and Powerless Sensing Node Deployed Inside a Spindle

open access: yesSensors, 2011
Installation of a Wireless and Powerless Sensing Node (WPSN) inside a spindle enables the direct transmission of monitoring signals through a metal case of a certain thickness instead of the traditional method of using connecting cables.
Da-Sheng Lee, Liang-Cheng Chang
doaj   +1 more source

NuMA recruits dynein activity to microtubule minus-ends at mitosis

open access: yeseLife, 2017
To build the spindle at mitosis, motors exert spatially regulated forces on microtubules. We know that dynein pulls on mammalian spindle microtubule minus-ends, and this localized activity at ends is predicted to allow dynein to cluster microtubules into
Christina L Hueschen   +3 more
doaj   +1 more source

Echinoderm Microtubule Associated Protein Like 1 Is Indispensable for Oocyte Spindle Assembly and Meiotic Progression in Mice

open access: yesFrontiers in Cell and Developmental Biology, 2021
Completion of the first meiosis is an essential prerequisite for producing a functionally normal egg for fertilization and embryogenesis, but the precise mechanisms governing oocyte meiotic progression remains largely unclear.
Hong Yin   +12 more
doaj   +1 more source

Excess TPX2 Interferes with Microtubule Disassembly and Nuclei Reformation at Mitotic Exit

open access: yesCells, 2020
The microtubule-associated protein TPX2 is a key mitotic regulator that contributes through distinct pathways to spindle assembly. A well-characterised function of TPX2 is the activation, stabilisation and spindle localisation of the Aurora-A kinase ...
Francesco D. Naso   +9 more
doaj   +1 more source

Functional characterization of the Saccharomyces cerevisiae protein Chl1 reveals the role of sister chromatid cohesion in the maintenance of spindle length during S-phase arrest

open access: yesBMC Genetics, 2011
Background Metaphase cells have short spindles for efficient bi-orientation of chromosomes. The cohesin proteins hold sister chromatids together, creating Sister Chromatid Cohesion (SCC) that helps in the maintenance of short spindle lengths in metaphase.
Sanyal Kaustuv   +4 more
doaj   +1 more source

Structural Organization and Function of the Golgi Ribbon During Cell Division

open access: yesFrontiers in Cell and Developmental Biology, 2022
The Golgi complex has a central role in the secretory traffic. In vertebrate cells it is generally organized in polarized stacks of cisternae that are laterally connected by membranous tubules, forming a structure known as Golgi ribbon.
Inmaculada Ayala, Antonino Colanzi
doaj   +1 more source

Exotic mitotic mechanisms [PDF]

open access: yesOpen Biology, 2012
The emergence of eukaryotes around two billion years ago provided new challenges for the chromosome segregation machineries: the physical separation of multiple large and linear chromosomes from the microtubule-organizing centres by the nuclear envelope.
Hauke Drechsler, Andrew D. McAinsh
doaj   +1 more source

Non-REM Sleep Characteristics Predict Early Cognitive Impairment in an Aging Population

open access: yesFrontiers in Neurology, 2019
Objective: Recent research suggests that sleep disorders or changes in sleep stages or EEG waveform precede over time the onset of the clinical signs of pathological cognitive impairment (e.g., Alzheimer's disease).
Jacques Taillard   +18 more
doaj   +1 more source

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