Results 101 to 110 of about 1,419,860 (293)

Neurotoxic amyloid β‐peptide and tau produce cytokine‐like effects on PMCA in glioblastoma cell lines, enhancing its activity and isoforms expression

FEBS Open Bio, EarlyView.
Two biomarkers of Alzheimer's disease, amyloid β‐peptide (Aβ) and tau, induce the transformation of U‐251 and other glioblastoma cell lines into neurotoxic A1‐like reactive astrocytes. This transformation is produced by cytokines and is followed by upregulation of PMCA activity and isoform expression, and is closely associated with inflammation, as ...
María Berrocal, Alberto Alvarez‐Barrientos, Ana M. Mata   +2 more
wiley   +1 more source

Effect of Adding Gold Nanoparticles on the Anti-Candidal Activity and Release Profile of Itraconazole from Hydrogels

Applied Sciences
Gold nanoparticles have been identified as a promising avenue for the development of drug carriers, particularly in the context of antimicrobial drug delivery, where limited solubility represents a significant challenge. The ability of gold nanoparticles
Radosław Balwierz, Paweł Biernat, Dawid Bursy, Mariia Shanaida, Katarzyna Kasperkiewicz, Agata Jasińska-Balwierz, Wioletta Ochędzan-Siodłak   +6 more
doaj   +1 more source

Non- classical diffusion processes [PDF]

Journal of Nuclear Materials, 1978
AbstractThis paper surveys quantum effects in diffusion, with special emphasis on isotope effects for hydrogen isotopes in metals. The various possible contributions to the isotope effect are surveyed, and their importance assessed. The bcc metals (V, Nb, Ta) and fee metals (Cu, Ni, Pd) involve different mechanisms, and these are still doubts in detail
openaire   +2 more sources

Boundaries of photosynthesis: adaptations of carbon fixation in extreme environments

FEBS Open Bio, EarlyView.
Photosynthesis faces challenges from environmental extremes of temperature, pH, and salinity, limiting gas diffusion, modifying membrane fluidity, and destabilizing photochemical and biochemical reactions. Photosynthetic organisms have evolved unique adaptations overcoming these stresses and maintaining their photosynthetic activity.
Pere Aguiló‐Nicolau, Concepción Iñiguez, Sebastià Capó‐Bauçà, Jeroni Galmés   +3 more
wiley   +1 more source

Effects of Water Absorption on the Insulating Properties of Polypropylene

Energies
Moisture has been a crucial problem during the operation of cable systems. When we are faced with polypropylene (PP)-based insulation for the development of cable systems, there are few reports on the effects of water intrusion on the electrical ...
Rui Xi, Qiyang Jiang, Liang Cao, Chuping Li, Jiaxun He, Ya Zhang, Gaohui He, Yingang Gui, Chao Tang   +8 more
doaj   +1 more source

Development of 4T1 breast cancer mouse model system for preclinical carbonic anhydrase IX studies

FEBS Open Bio, EarlyView.
Carbonic anhydrase IX (CAIX) is a well‐recognised therapeutic target and prognostic biomarker in cancer. We developed and characterised a robust murine breast cancer model system that is suitable for CAIX studies in vitro and in vivo—it comprises both CAIX‐positive and CAIX‐negative controls and provides a solid platform for the comprehensive ...
Zane Kalniņa, Ilva Liekniņa, Svetlana Koteloviča, Ramona Petrovska, Gediminas Žvinys, Agne Petrosiute, Asta Zubrienė, Matīss Toms Laugalis, Vendija Skeltona, Juris Jansons, Madara Kreishmane, Edita Čapkauskaitė, Daumantas Matulis, Kaspars Tārs   +13 more
wiley   +1 more source

Reaction-diffusion with a time-dependent reaction rate: the single-species diffusion-annihilation process

, 2004
We study the single-species diffusion-annihilation process with a time-dependent reaction rate, lambda(t)=lambda_0 t^-omega. Scaling arguments show that there is a critical value of the decay exponent omega_c(d) separating a reaction-limited regime for ...
ben-Avraham D, Bramson M, Burlisch R, Cardy J, Henkel M, Kang K, Kang K, L Turban, Lee B P, Lushnikov A A, Peliti L, Ódor G   +11 more
core   +2 more sources

Diagnostic Challenge in Frontal Variant Alzheimer's Disease With Low Amyloid‐β PET Retention

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Diagnosing frontal variant Alzheimer's disease (fvAD) is difficult and could be even more difficult when amyloid‐beta (Aβ) PET retention is low. A 63‐year‐old woman presenting with a 3‐year history of apathy and memory impairment showed executive dysfunction, memory impairment, and severe bilateral frontotemporal atrophy on MRI.
Ryosuke Shimasaki, Masanori Kurihara, Kenji Ishibashi, Aya Midori Tokumaru, Kenji Ishii, Atsushi Iwata   +5 more
wiley   +1 more source

Diffusion processes and memory effects

New Journal of Physics, 2005
We report the results of the numerical estimation of statistical memory effects in diffusion for two various systems: Lennard-Jones fluids and the model of the Brownian particle in a one-dimensional harmonic lattice. We have found the relation between the diffusion coefficient and the non-Markovity parameter, which is linear for the Lennard-Jones ...
Mokshin A., Yulmetyev R., Hänggi P.
openaire   +4 more sources

Diffusion Models for Double-ended Queues with Renewal Arrival Processes

, 2014
We study a double-ended queue where buyers and sellers arrive to conduct trades. When there is a pair of buyer and seller in the system, they immediately transact a trade and leave.
Gong, Qi, Kulkarni, Vidyadhar G., Liu, Xin   +2 more
core   +2 more sources