Results 51 to 60 of about 216,058 (291)

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

The Frequency of Mid-Infrared Excess Sources in Galactic Surveys [PDF]

, 2006
We have identified 230 Tycho-2 Spectral Catalog stars that exhibit 8 micron mid-infrared extraphotospheric excesses in the MidCourse Space Experiment (MSX) and Spitzer Space Telescope Galactic Legacy MidPlane Survey Extraordinaire (GLIMPSE) surveys.
A. J. Monson, B. A. Whitney, B. L. Babler, B. Uzpen, Barrado, C. J. Cyganowski, C. Watson, D. E. Backman, D. F. Watson, D. P. Clemens, E. Churchwell, E. P. Mercer, F. Heitsch, H. A. Kobulnicky, Hog E., J. M. Jackson, J. Rho, J. S. Mathis, K. E. Devine, M. Cohen, M. G. Wolfire, M. J. Pierce, M. J. Wolff, M. R. Meade, M. S. Povich, M. Sewilo, Oudmaijer R. D., Plets H., R. A. Benjamin, R. Indebetouw, S. Bracker, S. R. Stolovy, Sylvester R. J., T. M. Bania, T. P. Robitaille   +34 more
core   +3 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Are pre-MS stars older than we thought? [PDF]

, 2009
We present a consistent age ordering for young clusters and groups determined using the contraction of stars through their pre-main-sequence phase. We compare these with ages derived from the evolution of the upper main-sequence stars, and find the upper
Lucy, N.J. Mayne, Tim Naylor
core   +2 more sources

Instability strip for pre-main-sequence stars [PDF]

Communications in Asteroseismology, 2007
We apply the Time Dependent Convection (TDC) treatment presented in Grigahcene et al. (2005) to the study of Pre-main sequence pulsating stars. The stabilization of the p-modes at the red edge of the Instability Strip (IS) is obtained by our models. The theoretical IS obtained with Mixing Length (ML) parameter α =1.8 is compared to observations and a ...
Grigahcene, A., Dupret, Marc-Antoine, Garrido, R., Gabriel, Maurice, Scuflaire, Richard   +4 more
openaire   +1 more source

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

The –M disk Relationship for Herbig Ae/Be Stars: A Lifetime Problem for Disks with Low Masses?

The Astronomical Journal, 2023
The accretion of material from protoplanetary disks onto their central stars is a fundamental process in the evolution of these systems and a key diagnostic in constraining the disk lifetime. We analyze the relationship between the stellar accretion rate
Sierra L. Grant, Lucas M. Stapper, Michiel R. Hogerheijde, Ewine F. van Dishoeck, Sean Brittain, Miguel Vioque   +5 more
doaj   +1 more source

A Three Micron Survey of the Chamaeleon I Dark Cloud [PDF]

, 2001
We describe an L-band photometric survey of 0.5 square deg of the Cha I dark cloud. The survey has a completeness limit of L < 11.0. Our survey detects 124 sources, including all known pre-main sequence stars with L < 11.
Alcala J. M., Appenzeller I., Cambresy L., Comeron F., Glass I. S., Huenemoerder D. P., Hyland A. R., Lawson W. A., Lynden-Bell D., Mercedes Gómez, Nordh L., Olofsson G., Persi P., Prusti T., Scott J. Kenyon   +14 more
core   +2 more sources

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source

Simultaneous Far-ultraviolet and Near-ultraviolet Observations of T Tauri Stars with UVIT/AstroSat: Probing the Accretion Process in Young Stars

The Astrophysical Journal
We present results from simultaneous far-ultraviolet (FUV) and near-ultraviolet (NUV) observations of T Tauri stars (TTSs) in the Taurus molecular cloud with UVIT/AstroSat. This is the very first UVIT study of TTSs.
Prasanta K. Nayak, Mayank Narang, P. Manoj, Uma Gorti, Annapurni Subramaniam, Nayana George, Chayan Mondal   +6 more
doaj   +1 more source