2025

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A mouse oocyte extrudes a polar body. This important step in meiosis ensures that the egg cell contains a single set of chromosomes. Chromosomes are stained in magenta, the spindle apparatus that separates the chromosome pairs is shown in green. © Ninadini Sharma / Max Planck Institute for Multidisciplinary Sciences

05.03.2025

Why aged oocytes struggle to repair DNA damage

Egg cells need stamina: They are formed in a women’s body before birth and have to be on standby for decades to possibly be fertilized one day. But as they age, they accumulate more and more DNA damage. Until now, it has been unclear why the cell’s repair mechanisms do
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04.03.2025

Adaptive monotonicity testing in sublinear time

Authors Li H, Liu Z, Munk A Journal Arxiv Citation arXiv:2503.03020. Abstract Modern large-scale data analysis increasingly faces the challenge of achieving computational efficiency as well as statistical accuracy, as classical statistically efficient methods often fall short in the first regard. In the context of testing monotonicity of a regression
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03.03.2025

A correlative workflow streamlines synaptic imaging by cryo-electron tomography

Authors Do TT, Siegert A, Domart F, Hahn F, Zeising C, Muth SM, Pape C, Kusch K, Dresbach T, Rizzoli S, Petrovic A, Fernandez-Busnadiego R Journal BioRxiv Citation bioRxiv 2025.03.01.640558. Abstract Despite decades of intense research, the molecular organization of the synapse is not well understood. To address this issue,
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The 3D model helps researchers to better understand the structure and function of the mechanical spring on the ion channel. From left to right: Prof. Martin Göpfert, Dr. Thomas Effertz, Dr. Philip Hehlert. (Photo: Philip Hehlert)

03.03.2025

Hearing triggered by molecular “spring”

Göttingen research team gains new insights into the sense of hearing   Hearing begins with the stretching of elastic molecular “springs” that open ion channels in the sensory hair cells of the ear. For decades, researchers have known that these gating springs must exist, but they could not find them.
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03.03.2025

Induced Pluripotent Stem Cell Lines as a Model for Studying the Cellular Phase of Parkinson’s Disease

Authors Abdelrasol H, Outeiro TF Journal Journal of the Society of Medical Sciences of Lisbon Citation JSCMed 2025;169(1). Abstract Parkinson’s disease (PD) is a complex neurodegenerative disorder, characterized by the progressive loss of dopaminergic neurons in substantia nigra pars compacta (SNpc) as a result of intraneural deposition of aggregated alpha-synuclein
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28.02.2025

Optimizing Electrical Field Stimulation Parameters Reveals the Maximum Contractile Function of Human Skeletal Muscle Microtissues

Authors Tiper Y, Xie Z, Hofemeier AD, Lad H, Luber M, Krawetz R, Betz T, Zimmermann WH, Morton AB, Segal SS, Gilbert PM. Journal American Journal of Physiology. Cell Physiology Citation Am J Physiol Cell Physiol. 2025 Feb 28. Abstract Skeletal muscle microtissues are engineered to develop therapies for restoring
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27.02.2025

The keratin cortex stabilizes cells at high strains

Authors Meyer R, Rölleke U, Schwarz N, Perez-Tirado A, Schepers AV, Janshoff A, Köster S Journal BioRxiv Citation bioRxiv 2025.02.24.639846. Abstract The eukaryotic cytoskeleton consists of three filament types: actin filaments, microtubules and intermediate filaments (IFs). IF proteins are expressed in a cell-type specific manner, and keratins are found in
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26.02.2025

Inhibition of the Parkinson’s Disease-Related Protein DJ-1 by Endogenous Neurotoxins of the 1,2,3,4-Tetrahydroisoquinoline Family

Authors Laurent C, Poncet G, Herskovits T, Alves de Sousa R, Le Corre L, Al-Azzani M, Koenig A, Birman S, Outeiro TF, Mansuy D, Dairou J   Journal ACS Chemical Neuroscience   Citation ACS Chem Neurosci. 2025 Feb 26.   Abstract The protein DJ-1 appears to play a protective role
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25.02.2025

The plastid-encoded RNA polymerase of plant chloroplasts

Authors Ahrens FM, do Prado PFV, Hillen HS, Pfannschmidt T   Journal Trends in Plant Science   Citation Trends Plant Sci. 2025 Feb 25:S1360-1385(25)00031-7.   Abstract Plant chloroplasts possess a dedicated genome (plastome) and a prokaryotic-type plastid-encoded RNA polymerase (PEP) that mediates its expression. PEP is composed of five bacteria-like
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25.02.2025

Expanding our understanding of synucleinopathies: proteinopathy, proteinopenia, and lipidopathy

Authors Flores-León M, Outeiro TF   Journal FEBS Journal   Citation FEBS J. 2025 Feb 25.   Abstract A possible consequence of the process of protein aggregation in neurodegenerative diseases is the depletion of soluble protein species (proteinopenia), which may, at least in some cases, reduce protein function/activity. This concept,
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