Tag Archive for 'Rat'

Hegde et al, feeding rats coffee and also mixing it with gut bacteria in Petri dishes, found that coffee suppressed bacteria and increased muscle motility. Image credit: Free Photos.

Coffee Suppresses Gut Microbiome, Improves Ability of Intestine to Contract: Study

May 21, 2019 by News Staff

New experiments, performed in vitro on bacterial cultures and in vivo in rats, show that coffee — regardless of caffeine content — inhibits...

Farmer et al used genetic techniques to make glowing brain cells or rendered them sensitive to laser light to alter their activity; these brain cells are now thought to coordinate activity across the cardiovascular system. Image credit: Farmer et al, doi: 10.1113/JP277661.

Researchers Find Blood Flow Command Center in Brain

May 20, 2019 by News Staff

A research team led by Florey Institute of Neuroscience & Mental Health and Macquarie University scientists has discovered a group of cells in the...

Mice and rats have a rich repertoire of around 20 kinds of calls. Image credit: Alice Gray.

DeepSqueak: Deep Learning-Based System Decodes Rodent Chatter

Feb 21, 2019 by News Staff

Deep learning has recently revolutionized the field of machine hearing and vision, by allowing computers to perform human-like activities including seeing,...

Operation principle of the vagus nerve stimulation (VNS) system schematically showing the pathway for biphasic electric signal generation and VNS. Image credit: Yao et al, doi: 10.1038/s41467-018-07764-z.

Implantable Vagus Nerve Stimulation Device Aids Weight Loss

Dec 19, 2018 by News Staff

An international team of researchers led by University of Wisconsin-Madison scientists has developed an easily implantable weight-loss device. In lab experiments,...

Trimethylamine N-oxide is found at high concentrations in the tissues of some fish and shellfish.

Natural Compound Protects Hypertensive Rats against Heart Disease

Nov 13, 2018 by News Staff

Low-dose treatment with trimethylamine N-oxide — a compound linked with the consumption of fish, seafood and a primarily vegetarian diet —...

Kallupi et al demonstrate the efficacy of enzymatic therapy in treating nicotine addiction in advanced animal models and provide a strong foundation for the development of biological therapies for smoking cessation in humans. Image credit: Diema.

Engineered Enzyme Could Treat Nicotine Addiction

Oct 22, 2018 by News Staff

A team of scientists at the Scripps Research Institute has synthesized a new nicotine-degrading enzyme and successfully tested it in nicotine-dependent...

A medical professional applies eye drops to the eye. Image credit: British Columbia Institute of Technology / CC BY 4.0.

Eye Drops with Curcumin-Loaded Nanoparticles Could Treat Glaucoma

Jul 25, 2018 by News Staff

Curcumin, a polyphenol extracted from turmeric (Curcuma longa), could be used in eye drops to treat the early stages of glaucoma and other eye diseases...

This illustration depicts a 3D computer-generated image of a group of Escherichia coli. Image credit: James Archer / CDC.

Bacterial Infection Induces Delirium in Healthy, Aging Rats, Study Says

May 30, 2018 by News Staff

Activation of the immune system by the Escherichia coli infection may temporarily disrupt formation of long-term memories in older rats by reducing levels...

Single-injection polio vaccine could help eradicate the disease worldwide. Image credit: Tzeng et al.

Researchers Create Single-Injection Vaccine for Poliomyelitis

May 24, 2018 by News Staff

A group of researchers at the Massachusetts Institute of Technology (MIT) has developed an injectable nanoparticle formulation of the inactivated polio...

Panoz-Brown et al show that rats remember a stream of multiple episodes and the order in which they occur by engaging hippocampal-dependent episodic memory replay; rats remember the order of events using episodic memory replay and that replay is part of long-term memory, resistant to interference, and hippocampal dependent. The discovery could help advance the development of new drugs to treat Alzheimer’s disease. Image credit: Panoz-Brown et al, doi: 10.1016/j.cub.2018.04.006.

Non-Human Animals Can Mentally Replay Past Events: Study

May 15, 2018 by News Staff

A team of Indiana University researchers has reported the first evidence that non-human animals (rats) can replay a stream of multiple episodic memories....

The new study indicates that oral NaHCO3 activates a splenic anti-inflammatory pathway and provides evidence that the signals that mediate this response are transmitted to the spleen via a novel neuronal-like function of mesothelial cells. Image credit: Sci-News.com.

Drinking Baking Soda Daily May Help Reduce Inflammation Caused by Autoimmune Diseases

Apr 27, 2018 by News Staff

A team of researchers at Augusta University has shown that when rats or healthy people drink a solution of baking soda (sodium bicarbonate, NaHCO3), it...

The Eastern Indian red scorpion (Buthus tamulus) in Mangaon, Maharashtra, India. Image credit: Shantanu Kuveskar / CC BY-SA 4.0.

Scorpion Venom Toxin Reduces Severity of Rheumatoid Arthritis in Rats

Feb 28, 2018 by News Staff

Dr. Christine Beeton from Baylor College of Medicine and colleagues have found that iberiotoxin — one of the components in the venom of a scorpion...

Light-controlled neuron activation using optogenetics allows modulation of specific circuits but is invasive and requires genetic engineering. Researchers from the University of Chicago have developed a silicon-based nanowire that allows light modulation of neurons without genetic engineering, paving the way for optical control of neural activity to other neurological models. Image credit: Gerry Shaw / CC BY-SA 3.0.

Scientists Develop Nanowiring for Optical Control of Neuron Activation

Feb 23, 2018 by Zvi Cramer

Researchers have designed silicon nanowires that allow modulation neuronal activity using light, allowing manipulation of specific neural circuits without...

African grass rats (Arvicanthis niloticus) exposed to dim lights (DLD) for four weeks experienced, on average, a 30% decrease in the number of ‘dendritic spine’ connections in their brains, which are the tiny protrusions near the solid green line, a dendrite. These rats performed poorly on a maze-like task. Rats exposed to bright light (BLD), on the other hand, had many more of the dendritic connections and showed superior performance on the task. Image credit: Michigan State University.

Dim Light Makes Us Dumber, New Study Suggests

Feb 7, 2018 by News Staff

According to a new study published in the journal Hippocampus, spending too much time in dimly-lit environment may change the brain’s structure and hurt...

The process of how information reaches the amygdala. Image credit: Manos Kefalas / CC BY-SA 3.0.

Study: Danger Changes How Mammalian Brain Stores Innocuous Information

Jan 3, 2018 by News Staff

According to a study by University of New South Wales (UNSW) researchers, a mammal’s brain changes how it stores information about innocuous events depending...

This image shows a perineuronal net (green) surrounding a neuron. Image credit: Kristian Lensjø.

Researchers Find Way to ‘Erase’ Remote Visual Fear Memories in Rats

Jan 2, 2018 by News Staff

How the brain is able to store memories over long periods of time has been a persistent mystery to scientists. In a new study in rats, a research team...

Perry et al show that three days of a VLCD lowered plasma glucose and insulin concentrations in a rat model of type 2 diabetes (T2D) without altering body weight. Image credit: Perry et al, doi: 10.1016/j.cmet.2017.10.004.

Study: Very-Low-Calorie Diet Rapidly Reverses Type 2 Diabetes by Multiple Mechanisms

Nov 10, 2017 by News Staff

In a new study, Professor Gerald Shulman of the Howard Hughes Medical Institute at Yale and colleagues show that just three days of a very-low-calorie...

This is an illustration of Uromys vika. Image credit: Velizar Simeonovski, Field Museum.

Uromys vika: New Species of Tree-Dwelling Giant Rat Found in Solomon Islands

Sep 27, 2017 by Enrico de Lazaro

A new rodent species with an unusual lifestyle has been discovered on Vangunu — an island, part of the New Georgia Islands in the Solomon Islands...

A diet with walnuts leads to an overall significant increase in the diversity of bacteria in the gut. Image credit: Utroja0.

Study: Walnuts Keep Gut Healthy, Act as Prebiotic

Aug 24, 2017 by News Staff

Regular consumption of walnuts may be beneficial for digestive health by increasing the amount of good probiotic-type bacteria in the gut, according to...

Eulophophyllum kirki. Image credit: Peter Kirk.

Leaf-Mimicking Insect, Freshwater Stingray, Omnivorous Rat among ESF’s Top 10 Species of 2016

May 23, 2017 by News Staff

An international team of taxonomists led by experts at the SUNY College of Environmental Science and Forestry (ESF) selected the top 10 from among the...

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