Tag Archive for 'Stomach'

A juvenile of Gorgosaurus libratus feeding on Citipes elegans. Image credit: Julius Csotonyi / Royal Tyrrell Museum of Palaeontology / University of Calgary.

Fossilized Stomach Contents Reveal What Young Tyrannosaurs Ate

Dec 10, 2023 by Enrico de Lazaro

Paleontologists in Canada have found a 75-million-year-old skeleton of a juvenile of the tyrannosaurid dinosaur Gorgosaurus libratus with the remains of...

Dopamine release following intragastric glucose and lipid infusions in lean participants and participants with obesity before and after weight loss. Image credit: van Galen et al., doi: 10.1038/s42255-023-00816-9.

Brain Responses to Nutrients are Severely Impaired in Humans with Obesity, Study Shows

Jun 13, 2023 by News Staff

Importantly, the impaired neuronal responses are not restored after diet-induced weight loss, according to a new study led by Amsterdam University Medical...

Daurlong wangi skull. Image credit: Wang et al., doi: 10.1038/s41598-022-24602-x.

New Bird-Like Dinosaur Species Found with Remains of Frog in Its Stomach

Nov 21, 2022 by Enrico de Lazaro

More than 120 million years ago in what is now China, a hungry dromaeosaurid dinosaur ate a small frog. Daurlong wangi holotype: (a) whole specimen, (b)...

Reconstruction of a Devonian arthrodire placoderm. Image credit: Trinajstic et al., oi: 10.1126/science.abf3289.

380-Million-Year-Old Mineralized Organs Reveal Insights into Early Evolution of Jawed Vertebrates

Sep 16, 2022 by News Staff

Paleontologists from Curtin University and elsewhere have studied a three-dimensionally mineralized heart (the oldest ever found), stomach, intestine and...

Borgmann et al. employed intersectional genetic manipulations to probe the feeding and glucoregulatory function of distinct sensory neurons; they reconstructed the gut innervation patterns of numerous molecularly defined vagal and spinal afferents and identified their downstream brain targets; bidirectional chemogenetic manipulations, coupled with behavioral and circuit mapping analysis, demonstrated that gut-innervating, glucagon-like peptide 1 receptor (GLP1R)-expressing vagal afferents relay anorexigenic signals to parabrachial nucleus neurons that control meal termination; moreover, GLP1R vagal afferent activation improved glucose tolerance, and their inhibition elevated blood glucose levels independent of food intake; in contrast, gut-innervating, GPR65-expressing vagal afferent stimulation increased hepatic glucose production and activated parabrachial neurons that control normoglycemia, but they were dispensable for feeding regulation. Image credit: Borgmann et al., doi: 10.1016/j.cmet.2021.05.002.

Gut-Innervating Neurons Can Sense What We Eat, Study Suggests

Jun 7, 2021 by News Staff

In a new study published in the journal Cell Metabolism, researchers took a closer look at the functions of different sensory neurons in the control center...

Paleontologists Find Massive Marine Reptile in Stomach of Triassic Ichthyosaur

Aug 24, 2020 by News Staff

A new fossil of Guizhouichthyosaurus, a 5-m- (16.4-foot) long ichthyosaur that swam in Middle Triassic oceans some 240 million years ago, contains the...

Pickled capers were found to activate KCNQ channels important for normal human brain and heart activity. Image credit: Bo Abbott.

Eating Pickled Capers May Help Improve Brain and Heart Health

Jul 16, 2020 by News Staff

A duo of researchers from the School of Medicine at the University of California, Irvine has discovered that a compound commonly found in pickled capers,...

Life reconstruction of the armored dinosaur Borealopelta markmitchelli, which lived in what is now Alberta, Canada, some 110 million years ago, eating ferns. Image credit: Julius Csotonyi / Royal Tyrrell Museum.

Armored Herbivorous Dinosaur Preferred Fern Leaves

Jun 4, 2020 by News Staff

Paleontologists in Canada have analyzed the fossilized stomach contents from the exceptionally preserved specimen of Borealopelta markmitchelli, a species...

Abramson et al developed a drug capsule that could be used to deliver oral doses of insulin. Image credit: Felice Frankel.

Microneedle Pill Could Be Used to Deliver Oral Doses of Insulin

Feb 12, 2019 by News Staff

An international team of researchers from the United States, Denmark and Sweden has pioneered a new approach that brings an oral formulation of insulin...

Thanarajah et al combined functional magnetic resonance imaging (fMRI) and positron emission tomography (PET) to assess the brain’s response to food intake and discovered immediate and delayed dopamine release in distinct areas of the human brain; the study authors also identified areas where dopamine release reflected subjective wanting to eat, shedding light on how the brain transforms energetic signals into the desire to eat. Image credit: Thanaraja et al, doi: 10.1016/j.cmet.2018.12.006.

Study: Our Brain Rewards Us Twice Per Meal

Jan 2, 2019 by News Staff

Our brain rewards us for every meal by releasing dopamine, a neurotransmitter that plays a starring role in motivating behavior. According to a new study,...

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,...

Kong et al designed an ingestible sensor that can lodge in the stomach for a few weeks and communicate wirelessly with an external device. Image credit: Kong et al.

New Electronic Pill Can Communicate Wirelessly

Dec 14, 2018 by News Staff

A research team led by MIT scientists has developed an ingestible capsule that can be controlled using Bluetooth, a widely adopted wireless protocol. Manufactured...

Karshalev et al created a micromotor pill and demonstrated its attractive use as a platform for oral delivery of active micromotors: (A) left: schematic of in vivo administration of a micromotor pill for actuation in the stomach; right: schematic of the micromotor pill composition consisting of a lactose/maltose pill matrix and the encapsulated a magnesium/titanium dioxide/polylactic-co-glycolic acid (Mg/TiO2/PLGA) micromotors; a zoom-in view illustrates the micromotor structure consisting of a Mg microsphere core with a TiO2 shell layer and a cargo-loaded PLGA film coating; (B) schematic of micromotor pill dissolution in gastric fluid and subsequent micromotor release; (C) left: image showing different sizes of disk-shaped micromotor pills; center: microscope image showing the dissolution of a micromotor pill in gastric fluid simulant; right: propulsion of the released Mg-based micromotors in gastric fluid simulant. Image credit: Karshalev et al, doi: 10.1021/acsnano.8b03760.

Researchers Create Micromotor Pill

Sep 14, 2018 by News Staff

A team of scientists at the University of California, San Diego has found a way to encapsulate micromotors into pills. The pill’s coating protects the...

Palaeolenus lantenoisi showing evidence of crop, digestive glands, alimentary canal along thorax, and excreted waste posterior to pygidium. Scale bar - 5 mm. Image credit: Hopkins et al, doi: 10.1371/journal.pone.0184982.

Study: Earliest Trilobites Had Stomachs

Sep 22, 2017 by News Staff

Exceptionally well-preserved trilobite fossils from the Cambrian Wulongqing Formation near Guangwei Village in southern Kunming, the capital city of Yunnan...

Cinnamon. Image credit: Bertrand Thiry / CC BY-SA 3.0.

Cinnamon Cools Your Stomach, New Study Says

Sep 26, 2016 by News Staff

According to a new study published in the journal Scientific Reports, adding cinnamon to your diet can cool your stomach by up to two degrees. Cinnamon....