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Rendered image of <em>Chlamydia</em>
How Chlamydia Guards Itself Against the Immune System
The bacterium produces a particular protein that allows it to sneak past the human immune system even while triggering inflammation.
How Chlamydia Guards Itself Against the Immune System
How Chlamydia Guards Itself Against the Immune System

The bacterium produces a particular protein that allows it to sneak past the human immune system even while triggering inflammation.

The bacterium produces a particular protein that allows it to sneak past the human immune system even while triggering inflammation.

The Literature
(Left) The optic lobes are thought to be involved in visual processing. In this study, researchers found that guppies with larger optic lobes more quickly learned a visual discrimination task&mdash;identifying which color well contained food. (Right) The fish telencephalon is thought to be involved in spatial learning, memory, and inhibitory control. Here, the researchers found that a larger telencephalon might enhance the fish&rsquo;s cognitive flexibility, allowing them to more quickly associate food with a new color after the researchers switched it.
Infographic: Two Guppy Brain Regions May Help Them Learn Tasks
Natalia Mesa, PhD | Nov 14, 2022 | 1 min read
While guppies with larger optic lobes were champions at learning visual discrimination tasks, guppies with larger telencephalons fared better when researchers switched things up.
Photo of a Guppy fish
Fish Brain Region Size Correlates with Cognitive Flexibility
Natalia Mesa, PhD | Nov 14, 2022 | 3 min read
The relative sizes of specific parts of the guppy brain may explain why some fish are better at learning certain tasks than others. 
Genetic knockout experiments reveal a role for the protein in forming and maintaining synapses between motor neurons and muscle fibers in mice.
Infographic: Vangl2 in Muscles Keeps Neuromuscular Junctions Organized
Catherine Offord | Sep 12, 2022 | 1 min read
Genetic knockout experiments reveal a role for the protein in forming and maintaining synapses between motor neurons and muscle fibers in mice.
Neurons and muscle tissue
A Novel Player at the Neuromuscular Junction
Catherine Offord | Sep 12, 2022 | 3 min read
The muscle transmembrane protein Vangl2 helps organize the development and maintenance of connections between muscles and motor neurons, a study concludes.
Antibiotic resistant bacteria inside a biofilm, 3D illustration. Biofilm is a community of bacteria where they aquire antibiotic resistance and communicate with each other by quorum sensing molecules
How a Bacterium Manages to Reproduce During Famine
Viviane Callier | Jul 18, 2022 | 3 min read
When Caulobacter crescentus finds itself in a nutrient-poor environment, it clusters an enzyme necessary for cell division thanks to a physical phenomenon known as phase separation so it can make better use of dwindling fuel.
Caulobacter crescentus, concentrating DivJ
Infographic: Nutrient Scarcity Drives Phase Separation in Bacteria
Viviane Callier | Jul 18, 2022 | 1 min read
When the bacterium Caulobacter crescentus runs low on fuel, it can still replicate by clustering its remaining ATP around the cell division enzyme DivJ.
Photograph looking up a tree trunk
Contrary to Common Belief, Some Older Trees Make Fewer Seeds
Annie Melchor | Nov 1, 2021 | 2 min read
An analysis of more than half a million trees reveals that many species begin to taper off seed production once they hit a certain size.
Image of fruit fly epithelial cells (pseudo colored in this micrograph)
Epithelial Cell Signaling Helps Maintain Tissue Integrity
Annie Melchor | Nov 1, 2021 | 2 min read
Using a transgenic fruit fly model, researchers demonstrate how epithelial barriers are maintained in living organisms despite high levels of cell turnover and death.
Image of nerve fibers shown in green and red
Neurons Simplify Visual Signals by Responding to Only One Retina
Anne N. Connor | Oct 1, 2021 | 2 min read
Mice have neurons that connect to both eyes but only propagate the signal from one or the other, simplifying the information sent to the cerebral cortex.
Illustration of a brain on a clock with a figure of a man moving the clock arms
Human “Time Cells” Encode, Process Flow of Time
Anne N. Connor | Oct 1, 2021 | 2 min read
Neurons in the hippocampus store information on the timing of experiences in addition to their content, helping to mediate sequential memory recall, a new study shows.
Immunofluorescence image of human tenocytes (cell nuclei in blue, actin in red) with PIEZO1 protein labeled in green (Scale bar: 20 ?m)
Mechanosensory Protein Helps Tendons Stiffen After Exercise
Catherine Offord | Sep 1, 2021 | 2 min read
Researchers identify a role for PIEZO1 in tendon adaptation, and show that people with certain versions of the Piezo1 gene tend to be better jumpers.
A microscopy image of several endometrial stromal fibroblasts
Gene Offers Clue to How Human Labor Starts
Christie Wilcox, PhD | Aug 1, 2021 | 2 min read
Genes associated with preterm birth and protecting the fetus from the mother’s immune system appear to be regulated by HAND2.
Infographic: How Pregnancy Changes Fat Tissue
Catherine Offord | Aug 1, 2021 | 1 min read
Researchers propose a mechanism by which a protein produced in the placenta may trigger blood vessel growth and enlarge fat cells.
Stress Paralyzes Immune Cells
Emma Yasinski | Jul 1, 2021 | 2 min read
Scientists show that an influx of noradrenaline can halt immune cells in mice.
colonies of mold growing on a Petri dish
Fungi Squeezed Through Microchannels Offer Clues to Cell Growth
Catherine Offord | Jun 1, 2021 | 3 min read
A study finds that fast-growing species are stymied by narrow gaps, while slower-growing species can pass through and continue extending.
When Pursuing Prey, Bats Tune Out the World
Lisa Winter | May 1, 2021 | 2 min read
As they close in for the kill, the flying mammals use quieter echolocation to focus on the chase.
Aphid Salivary Gene May Regulate Gall Color
Asher Jones | May 1, 2021 | 2 min read
Whether the galls that aphids make on witch hazel leaves are red or green is associated with a gene expressed in the insects’ salivary glands.
Macrophages of the Human Eye Come into Focus
Ashley Yeager | Mar 1, 2021 | 3 min read
Imaged in real time in living people, immune cells at the surface of the retina could serve as biomarkers to detect retinal and possibly neurological diseases and track their progression.
Petunia’s Waxy Cuticle Regulates the Plant’s Sweet Smell
Ashley Yeager | Feb 1, 2021 | 3 min read
The thicker the flower petals’ cuticle, the more fragrance compounds the plant releases, according to a recent study.
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