ADVERTISEMENT
A Nile rat sitting atop fruits
Genome Spotlight: Nile Rat (Avicanthis niloticus)
A reference sequence for this emerging model organism will facilitate research on type 2 diabetes and the health effects of circadian rhythm disruption.
Genome Spotlight: Nile Rat (Avicanthis niloticus)
Genome Spotlight: Nile Rat (Avicanthis niloticus)

A reference sequence for this emerging model organism will facilitate research on type 2 diabetes and the health effects of circadian rhythm disruption.

A reference sequence for this emerging model organism will facilitate research on type 2 diabetes and the health effects of circadian rhythm disruption.

circadian rhythms
Newborn baby rats lie in a basket
Mother’s Circadian Rhythms Mirrored in Fetal Rat Brains
Bianca Nogrady | Sep 12, 2022 | 2 min read
Before their own central clocks develop, the brains of fetal rats detect their mother’s metabolic cycle to help regulate the expression of certain genes.
Fluorescent microscopy of a healthy intestinal organoid and a tumor spheroid
Internal Clock Disruptions Increase Colon Cancer Risk in Mice
Shafaq Zia | Aug 19, 2022 | 3 min read
Disturbing circadian rhythms in organoids and mice increases intestinal tumor growth, findings that may explain a recent rise in colon cancer among young adults, the researchers behind the work say.
A man working at a computer late at night
Shift Work Early in Life Results in Increased Stroke Severity in Middle Age
Jennifer Zieba, PhD | 3 min read
Researchers found that shifted sleep/wake cycles in young rats result in increased functional deficits and mortality following stroke later in life.
Artist’s rendition of metastatic cancer cells with yellow nuclei and green cell bodies extending into blue tendrils.
While the Body Rests, Breast Cancer Spreads More Aggressively
Alejandra Manjarrez, PhD | Jun 23, 2022 | 4 min read
More cancer cells are shed from primary tumors when individuals are asleep than when they’re awake, according to observations in mouse models and a small cohort of breast cancer patients.
Segmented filamentous bacteria artificially colored in green attach to the intestinal wall of a mouse
Gut Microbes Help Coordinate Immune Activity in Mice
Catherine Offord | Jul 29, 2021 | 4 min read
The microbiota helps align a mouse’s innate immune system with its feeding patterns, prepping the animal to fend off infection when it’s most likely to be eating.
illustration of multiple clocks arranged in the shape of a brain
How Early-Morning Light Exposure Makes Mice Less Depressed
Bianca Nogrady | Jul 22, 2021 | 4 min read
A light-sensitive gene involved in regulating the body clock may also influence mood, mediating the effect of light.
A bar of milk chocolate with the foil peeled back and a bite taken out
Q&A: Eating Milk Chocolate in the Morning Boosts Fat Metabolism
Amanda Heidt | Jun 30, 2021 | 6 min read
A study of 19 postmenopausal women found that eating a bar of chocolate in the morning affected their bodies differently than eating it at night, but neither led to weight gain.
Malaria Parasites’ Biological Clocks Coordinate Cell Destruction
Abby Olena, PhD | May 14, 2020 | 3 min read
Two studies show that Plasmodium—the genus of protozoans that cause malaria—have an internal sense of time that synchronizes with their host’s circadian rhythms and allows the parasites to collectively attack blood cells.
Light Enables Long-Term Memory Maintenance in Fruit Flies
Diana Kwon | May 1, 2020 | 2 min read
Under constant darkness, Drosophila’s ability to form lasting memories is impaired.
Circadian Clock Genes Help a Crop Pest Adapt to Climate Change
Emily Makowski | Jan 13, 2020 | 3 min read
As global temperatures rise and winters shorten, caterpillars of the corn borer moth are emerging earlier in parts of the US thanks to changes in two genes, researchers find.
Sleep Study in Antarctica Explores Role of Cultural Differences
Alejandra Manjarrez, PhD | Dec 1, 2019 | 4 min read
Habits such as napping might influence how humans cope with extreme environments, such as those at a polar research facility in winter.
a plate with fruits and vegetables arranged into the shape of a clock
People at Rest Burn More Calories in the Afternoon
Shawna Williams | Nov 8, 2018 | 2 min read
Circadian rhythms heavily influence how our bodies use energy, a small study suggests.
Infographic: The Role of Circadian Clocks in Muscle
Diana Kwon | Sep 1, 2018 | 2 min read
Timekeepers in muscle help mediate metabolism, and may influence neurological processes such as sleep.
Muscle Clocks Play a Role in Regulating Metabolism
Diana Kwon | Sep 1, 2018 | 9 min read
Just 20 years ago, scientists didn’t even realize muscles had their own circadian clocks. Now they are beginning to appreciate their importance in health. 
Limited Meal Times Prevent Obesity in Mice Prone to Gaining Weight
Abby Olena, PhD | Aug 30, 2018 | 3 min read
Even in mice with a busted circadian clock and an unhealthy diet, carefully timed feeding overcomes the rodents’ predispositions for metabolic diseases.
Fly’s Blood-Brain Barrier Has Circadian Rhythms
Abby Olena, PhD | Mar 8, 2018 | 3 min read
In Drosophila, the tissue is more permeable to drugs at night, offering a possible explanation for why some medicines work better at certain times of day.
Long-Term Brain Rhythms Offer Possibility of Predicting Seizures
Diana Kwon | Jan 8, 2018 | 4 min read
Researchers identify patterns of neural activity ranging from a few days to four weeks in individuals with epilepsy.
Why Afternoon Open Heart Surgery Is Better for Patient Outcomes
Catherine Offord | Oct 27, 2017 | 2 min read
Research in human patients and mice reveals the role of the circadian clock in the risk of heart damage at different times of day.
Circadian Gene Linked to Severe Epilepsy in Children
Diana Kwon | Oct 11, 2017 | 3 min read
Loss of the CLOCK protein, which researchers find is decreased in pediatric epilepsy patients, makes mice more prone to seizures during sleep.
ADVERTISEMENT