Results 31 to 40 of about 61,090 (217)

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Specific post-translational modifications of soluble tau protein distinguishes Alzheimer’s disease and primary tauopathies

Nature Communications, 2023
Tau protein aggregates in several neurodegenerative disorders, referred to as tauopathies. The tau isoforms observed in post mortem human brain aggregates is used to classify tauopathies.
Nathalie Kyalu Ngoie Zola, Clémence Balty, Sébastien Pyr dit Ruys, Axelle A. T. Vanparys, Nicolas D. G. Huyghe, Gaëtan Herinckx, Manuel Johanns, Emilien Boyer, Pascal Kienlen-Campard, Mark H. Rider, Didier Vertommen, Bernard J. Hanseeuw   +11 more
doaj   +1 more source

Variability of the Chemical Composition of the Atmospheric Aerosol in the Coastal Zone of the Southern Basin of Lake Baikal (East Siberia, Russia)

Atmosphere, 2022
The role of the atmosphere in the formation of the chemical composition and quality of water in Lake Baikal and its tributaries has been increasing in recent years. In this regard, studies of the chemical composition of the constituents of the atmosphere
Liudmila P. Golobokova, Tamara V. Khodzher, Galina S. Zhamsueva, Alexander S. Zayakhanov, Alexey Starikov, Olga I. Khuriganova   +5 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Senescence-related impairment of autophagy induces toxic intraneuronal amyloid-β accumulation in a mouse model of amyloid pathology

Acta Neuropathologica Communications, 2023
Aging is the main risk factor for Alzheimer’s disease (AD) and other neurodegenerative pathologies, but the molecular and cellular changes underlying pathological aging of the nervous system are poorly understood. AD pathology seems to correlate with the
Nuria Suelves, Shirine Saleki, Tasha Ibrahim, Debora Palomares, Sebastiaan Moonen, Marta J. Koper, Céline Vrancx, Devkee M. Vadukul, Nicolas Papadopoulos, Nikenza Viceconte, Eloïse Claude, Rik Vandenberghe, Christine A. F. von Arnim, Stefan N. Constantinescu, Dietmar Rudolf Thal, Anabelle Decottignies, Pascal Kienlen-Campard   +16 more
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Telomere-driven senescence accelerates tau pathology, neuroinflammation and neurodegeneration in a tauopathy mouse model

Acta Neuropathologica Communications
The connection between aging and neurodegenerative pathologies like Alzheimer’s disease (AD) has long been recognized, with senescent brain cells building up in the brains of AD patients.
Debora Palomares, Axelle A. T. Vanparys, Joana Jorgji, Esther Paître, Pascal Kienlen-Campard, Nuria Suelves   +5 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Gazing into spatiotemporal ‘known unknowns’: the influence of uncertainty on pupil size and saccadic eye movements

Scientific Reports
Expectation of a future stimulus increases the preparedness to act once it actually appears and results in reduced latency of the appropriate motor response.
Aïcha Boutachkourt, Dominika Drążyk, Marcus Missal   +2 more
doaj   +1 more source

Orange Sm:LiYF4 lasers emitting at 605 nm [PDF]

EPJ Web of Conferences
We report on polarized spectroscopy and orange laser operation under 2ω-OPSL and GaN-diode pumping of Sm:LiYF4 crystals. The Samarium laser delivers 12 mW at 605 nm with a threshold of 51 mW and a linear polarization.
Demaimay Jonathan, Loiko Pavel, Kifle Esrom, Pau Florence, Recoque Gilles, Benayad Abdelmjid, Georges Thierry, Camy Patrice, Braud Alain   +8 more
doaj   +1 more source