Results 81 to 90 of about 746,994 (292)

Discrete hierarchical organization of social group sizes [PDF]

Proceedings of the Royal Society B: Biological Sciences, 2005
The ‘social brain hypothesis’ for the evolution of large brains in primates has led to evidence for the coevolution of neocortical size and social group sizes, suggesting that there is a cognitive constraint on group size that depends, in some way, on the volume of neural material available for processing and synthesizing information on social ...
Zhou, W. X., Sornette, D., Hill, R. A., Dunbar, R. I. M.   +3 more
openaire   +4 more sources

Proliferation-independent regulation of organ size by Fgf/Notch signaling

eLife, 2017
Organ morphogenesis depends on the precise orchestration of cell migration, cell shape changes and cell adhesion. We demonstrate that Notch signaling is an integral part of the Wnt and Fgf signaling feedback loop coordinating cell migration and the self ...
Agnė Kozlovskaja-Gumbrienė, Ren Yi, Richard Alexander, Andy Aman, Ryan Jiskra, Danielle Nagelberg, Holger Knaut, Melainia McClain, Tatjana Piotrowski   +8 more
doaj   +1 more source

Methoprene treatment and its effect on male reproductive organ size and female remating in a fruit fly

, 2023
Methoprene, a juvenile hormone analog, is used to accelerate sexual maturation in males of species of economic importance in support to the sterile insect technique (SIT).
Giudice, Laura Antonella, Diaz, Viviana Alejandra, Pérez Staples Diana, Moyano, Andrea del Huerto, Abraham, Solana   +4 more
core   +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

Wnt/Dkk Negative Feedback Regulates Sensory Organ Size in Zebrafish

, 2013
SummaryCorrect organ size must involve a balance between promotion and inhibition of cell proliferation. A mathematical model has been proposed in which an organ is assumed to produce its own growth activator as well as a growth inhibitor [1], but there ...
Asakawa, Kazuhide, Wada, Hironori, Ishitani, Tohru, Kawakami, Koichi, Ghysen, Alain, Abe, Gembu   +5 more
core   +1 more source

Sensory Organ Size Evolution: A View from Drosophila

, 2020
In this issue of Developmental Cell, Ramaekers et al. (2019) show that changes in eyeless/Pax6 expression cause differences in compound eye size within and between Drosophila species.
McGregor, Alistair P., Almudi, Isabel
core   +1 more source

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

FEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas, Brigitta Maruzs, Zsófia E. Kálmán, Tomas Klumpler, Gyula Batta, Bálint Péterfia, Zoltán Gáspári   +6 more
wiley   +1 more source

Electron transfer between complexes III and IV in S. cerevisiae mitochondrial membranes

FEBS Letters, EarlyView.
Mitochondrial oxidative phosphorylation in S. cerevisiae mitoplasts is limited by complex IV catalytic capacity, rather than two‐dimensional cytochrome c diffusion. At physiological cytochrome c : supercomplex ratios at salinity equivalent to that of 20 mm monovalent salt, activity is maximized, indicating that this low ionic strength accurately mimics
Ana Paula Lobez, Mikael Oliveberg, Peter Brzezinski   +2 more
wiley   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Volumetric Analysis of the Pancreas in Autopsy versus Contrast-enhanced Computed Tomography: An Observational Study with Insight Into Type 2 Diabetes Mellitus Related Changes

National Journal of Clinical Anatomy
Introduction: Pancreatic volume is influenced by ethnicity, race, body mass index, physiological status, and diseases like diabetes mellitus, with measurement methods also playing a role.
J. Lakshmi Priyanka, Saraswathi Selvaraju, Pravash Ranjan Mishra, Praveen Kumar Ravi   +3 more
doaj   +1 more source