Neurons in all sorts of different colors, some glowing
How Fear Restructures the Mouse Brain
By combining deep learning and electron microscopy, researchers now have a more detailed understanding of how fear changes the brain.
How Fear Restructures the Mouse Brain
How Fear Restructures the Mouse Brain

By combining deep learning and electron microscopy, researchers now have a more detailed understanding of how fear changes the brain.

By combining deep learning and electron microscopy, researchers now have a more detailed understanding of how fear changes the brain.

mitochondria
dark image with red ring
How Immature Egg Cells in Ovaries Resist Aging
Shafaq Zia | Aug 4, 2022
The cells’ mitochondria skip a key metabolic reaction that takes place in other cells in the body, a study finds.
An illustration of a mitochondrion, represented by a purple and orange bilayer, synthesizing reddish molecules of ATP.

Mitochondrial Protein Fuels Spread of Head and Neck Cancer 

Patience Asanga | Jul 8, 2022
Head and neck cancer cells lacking the peptide involved in energy production were less likely to metastasize in mice.
The Scientist Speaks Ep. 16 - At the Breaking Point: Mitochondrial Deletions and the Brain
The Scientist Creative Services Team
Researchers characterize large mitochondrial deletions to understand their implications in neurological disorders.
A microscope image of Legionellales bacteria infecting a protozoan
Ancestral Bacteria May Have Invaded Early Eukaryotic Cells
Clare Watson | Jun 1, 2022
The discovery that a group of cell-infecting bacteria lived roughly 2 billion years ago stirs a longstanding controversy around which came first: phagocytosis or mitochondria.
Illustration of blue shiny mitochondria
Worms Live Longer with Mitochondria Powered by Light: Preprint
Alejandra Manjarrez | May 24, 2022
Increasing mitochondrial activity in worms by engineering a light-activated proton pump into the organelle’s membrane extends the animals’ lifespan without evidence of health decline, according to a preprint.
illustration of purple mitochondrion within a cell
Rogue Mitochondria Turn Hermaphroditic Snails Female: Study
Patience Asanga | May 19, 2022
The accidental finding marks the first time a phenomenon called cytoplasmic sterility, known to occur in plants, has been found in animals.
illustration of a mitochondrian inside a cell
Could Dad’s Mitochondrial DNA Benefit Hybrids?
Alejandra Manjarrez | Jan 20, 2022
Studies have found that organisms can inherit mitochondria from male parents in rare instances, and both theoretical and experimental work hint that this biparental inheritance is more than just a fluke.
Close-up of wild sea otter (Enhydra lutris) eating shellfish while floating on it's back.
Sea Otters Demonstrate that There Is More to Muscle than Just Movement—It Can Also Bring the Heat
Traver Wright, Melinda Sheffield-Moore, and Randall Davis | Dec 13, 2021
Sea otters are born with a supercharged metabolism that helps them stay warm in chilly waters.
False color image of two Caenorhabditis elegans roundworms; blue on a black background
Mitochondrial Stress Is Passed Between Generations
Amanda Heidt | Dec 1, 2021
Researchers identified a novel mechanism by which chemically induced stress is “remembered” by the mitochondria of worms more than 50 generations after the original trigger.
How C. elegans Transmit Stress Signals to Offspring
Infographic: How C. elegans Transmit Stress Signals to Offspring
Amanda Heidt | Dec 1, 2021
Neurons stressed with chemicals produce Wnt, which in turn triggers changes in the germline.
Scanning electron micrograph showing cancer cell attached to T call via nanotube
Cancer Cell Nanotubes Hijack Mitochondria from Immune Sentinels
Sophie Fessl | Nov 30, 2021
The mitochondria stolen via these tiny connections give tumor cells a metabolic boost while the T cells are left weakened, according to in vitro experiments.
Photograph of a brown laboratory mouse
Experiment Gone Awry Suggests Novel Way to Combat Hypoxia
Phil Jaekl | Oct 1, 2021
While exploring suspended animation in mice, scientists discover how an enzyme can protect the brain from dangerously low levels of oxygen.
Mouse heart cells that have taken up adipocyte-derived extracellular vesicles (stained red)
Fat Cells Send Mitochondrial Distress Signals to the Heart
Ruth Williams | Aug 20, 2021
Vesicles containing fragments of the organelles released from stressed adipocytes protect the heart against oxygen deprivation, a study in mice shows.
a young woman pedals an exercise bike while wearing a mask to monitor oxygen consumption
Extreme Exercise Carries Metabolic Consequences: Study
Shawna Williams | Mar 23, 2021
Healthy people put through high-intensity interval training, or HIIT, displayed insulin resistance and mitochondrial dysfunction after working out excessively.
2020 end of year roundup science news wildfire pandemic coronavirus covid-19 salivary glands tubarial mitochondria in blood neanderthal dna in african genome first blood test for alzheimer's inclusivity black in x stem
The Biggest Science News of 2020
Kerry Grens | Dec 23, 2020
Neanderthal DNA surprises in modern humans, the first blood test for Alzheimer’s, a discovery of new human salivary glands, and, oh yeah, a pandemic
CRISPR, TALENs, ZFNs, gene editing, base editing, mitochondria, DNA, mtDNA
New Gene Editing Tool Corrects Mutations in Mitochondrial DNA
Amanda Heidt | Jul 9, 2020
An enzyme pulled from toxic bacteria can enter the organelle and perform single-nucleotide DNA swaps.
Image of the Day: Ancient Horned Lark
Amy Schleunes | Mar 6, 2020
A complete bird specimen uncovered in northeastern Siberia is radiocarbon dated to be roughly 44,000–49,000 years old.
mitochondrial transfer mitochondria inflammation pain
Macrophages in Mice Shuttle Mitochondria to Neurons in Need
Katarina Zimmer | Mar 5, 2020
The findings could represent a novel mechanism for relieving inflammatory pain.
Infographic: A Gene Editor for Plant Mitochondrial DNA
Ruth Williams | Mar 1, 2020
New TALEN-based tools enable the organelle’s genome to be targeted and modified.