Results 41 to 50 of about 2,453,415 (302)

MicroED structure of the NaK ion channel reveals a Na+ partition process into the selectivity filter. [PDF]

open access: yes, 2018
Sodium (Na+) is a ubiquitous and important inorganic salt mediating many critical biological processes such as neuronal excitation, signaling, and facilitation of various transporters.
Gonen, Tamir, Liu, Shian
core   +2 more sources

Interaction vesicles as emerging mediators of host‐pathogen molecular crosstalk and their implications for infection dynamics

open access: yesFEBS Letters, EarlyView.
Interaction extracellular vesicles (iEVs) are hybrid vesicles formed through host‐pathogen communication. They facilitate immune evasion, transfer pathogens' molecules, increase host cell uptake, and enhance virulence. This Perspective article illustrates the multifunctional roles of iEVs and highlights their emerging relevance in infection dynamics ...
Bruna Sabatke   +2 more
wiley   +1 more source

Universal Mortality Law, Life Expectancy and Immortality

open access: yes, 2004
Well protected human and laboratory animal populations with abundant resources are evolutionary unprecedented, and their survival far beyond reproductive age may be a byproduct rather than tool of evolution.
Arantes-Oliveira   +24 more
core   +1 more source

Natural killer cells in placentation and cancer: Implications for hypertension during pregnancy [PDF]

open access: yes, 2017
Hypertension during pregnancy is the most common medical condition encountered during gestation. Despite this, knowledge of the mechanisms that underlie the disease and the development of new therapies are limited.
Cornelius, Denise C.   +3 more
core   +1 more source

A stepwise emergence of evolution in the RNA world

open access: yesFEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

A Method to Identify and Analyze Biological Programs through Automated Reasoning. [PDF]

open access: yes, 2016
Predictive biology is elusive because rigorous, data-constrained, mechanistic models of complex biological systems are difficult to derive and validate.
and Stephen Emmott, 5   +5 more
core   +1 more source

Regulatory Mechanisms in Stem Cell Biology [PDF]

open access: yesCell, 1997
Stem cells are a subject of intense and increasing interest because of their biological properties and potential medical importance. Unfortunately, the field has been difficult for the nonspecialist to penetrate, in part because of ambiguity about what exactly constitutes a stem cell.
Morrison, Sean J.   +2 more
openaire   +4 more sources

B cell mechanobiology in health and disease: emerging techniques and insights into therapeutic responses

open access: yesFEBS Letters, EarlyView.
B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro   +2 more
wiley   +1 more source

Molecular Architecture and Biological Reactions [PDF]

open access: yes, 1946
Answers to many basic problems of biology—nature of growth, mechanism of duplication of viruses and genes , action of enzymes, mechanism, of physiological activity of drugs, hormones, and vitamins, structure and action of nerve and brain tissue—may ...
Pauling, Linus
core  

Kinetic Model of Translational Autoregulation

open access: yes, 2018
We investigate dynamics of a kinetic model of inhibitory autoregulation as exemplified when a protein inhibits its own production by interfering with its messenger RNA, known in molecular biology as translational autoregulation.
Kellman, Michael E., Tyng, Vivian
core   +2 more sources

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