Articles tagged with Ribs
A new reconstruction of the 375-million-year-old fossil fish Tiktaalik reveals that its ribs likely attached to its pelvis, enabling support of the body and potentially leading to the evolution of walking. This discovery provides insights into the major evolutionary transition from fish to four-limbed vertebrates.
Researchers from Tokyo Metropolitan University conducted a simulation to study bridge failure during large-scale earthquakes. The study highlights the importance of girder end design in improving resilience, with reinforcing ribs shown to be effective against lateral forces.
Researchers developed assistive devices to streamline ear reconstruction surgery, minimizing tissue waste and operating time. The tools use 3D manufacturing to precision-cut rib cartilage, enabling a faster, more accurate process with better outcomes.
A recent study published in NPJ Regenerative Medicine found that large bone injuries trigger a repair strategy recapitulating elements of skeletal formation in utero. The gene Sonic hedgehog (Shh) plays a necessary role in healing central regions, while small-scale fractures heal through a distinct program.
Researchers discovered that boa constrictors adjust which section of the rib cage they use to inhale depending on whether they are resting, throttling an animal or digesting. The sinuous reptiles use different sections of the rib cage to breathe when their ribs are constricted.
The MUSC Health Chest Wall Injury Center provides access to a population of underserved patients with rib injuries. The center offers a range of treatments, including surgical stabilization procedures, multimodal pain medications, ultrasound therapy, and physical therapy recommendations.
Researchers found a rib fragment of the Mount Holly mammoth, dating back 12,800 years, which overlaps with the arrival of early humans in the region. The discovery raises the possibility that humans may have seen or interacted with these animals.
Researchers analyzed digital reconstructions of four Neanderthal infants' rib cages to discover the characteristic feature existed at birth. The analysis found shorter and deeper rib cages in Neanderthals compared to modern humans, regardless of age.
Researchers have reconstructed the ancestral relationships of the hillstream loach family tree, detailing unusual pelvic adaptations that enable some members to crawl or walk on land. The study found three dominant variations of pelvic anatomy that explain different degrees of land-walking behavior among the fishes.
A new study found that the mechanics of rib movements in lizards facilitate locomotion, which was later co-opted for breathing. The researchers captured 3D motion of lizard ribs and vertebrae using XROMM, revealing a twisting forward and backward pattern similar to inhalation and exhalation.
A new study from UC Davis shows that Neandertals selected bones from specific animals to create a lissoir, a tool used to work hides into leather. The analysis of collagen protein residues using ZooMS revealed a preference for bovine ribs over deer bones, suggesting deliberate tool choice.
Researchers Vera Tiesler and Guilhem Olivier examine the techniques and devices used in human heart extractions, shedding light on the relationship between ritual violence and cosmological interpretations. Their study reveals three distinct extraction methods and provides a framework for analyzing sacrificial rituals in other ancient s...
A new multicenter study finds that stabilizing fractured and partially dislocated ribs through surgical stabilization improves patient outcomes, with reduced pain, increased comfort, and lower complication rates. Patients who underwent the procedure experienced better quality of life and fewer complications compared to those who did not.
Scientists have developed a method to encode complex curves in shape-shifting structures, enabling the creation of doubly-curved shapes like those found on a human face. The research uses a bilayer, multimaterial lattice design that can grow or shrink in response to temperature changes.
Researchers designed a new structural design method that can transform flat layers into predetermined shapes in response to ambient temperature changes. The new structures can achieve complex configurations, such as transforming into a human face shape.
Researchers identified messenger cells that promote bone regeneration and called into question an existing dogma in biology textbooks. The discovery may lead to better strategies for boosting bone repair in other parts of the body.
Researchers developed a technique to grow live bone in the rib area using 3D-printed bioreactors and stem cells. The new method aims to replace current reconstruction techniques that use harvested bone tissues from different areas, promoting natural healing powers.
The study suggests that Neanderthals relied on the diaphragm for breathing due to their wider lower thorax and more horizontal rib orientation. This finding is consistent with previous research on increased lung capacity in Neanderthals.
A team of scientists has reconstructed the 3D shape of a Neandertal ribcage, revealing an upright individual with a straighter spine and potentially greater lung capacity. The study offers new insights into ancient human anatomy and biomechanics.
A new form of Chest Wall Deformity has been discovered in patients with mild scoliosis and without it, characterized by rib humps mimicking scoliosis. Long-term observations are necessary to draw a final conclusion on prognosis.
Researchers from USC discovered that the levels of Hedgehog protein determine whether cells form bone or cartilage in developing ribs. High Hh concentrations favor bone formation, while lower concentrations promote cartilage growth.
Researchers found a high incidence of cervical ribs in woolly rhino fossils, suggesting a vulnerable condition that may have contributed to their decline. The study suggests monitoring modern rhinos' vertebrae could indicate the level of extinction risk, highlighting the importance of conservation efforts.
Researchers have developed new noninvasive ultrasound techniques to image the brain and liver, overcoming limitations caused by bones in these areas. The DORT method uses a multi-element array to focus ultrasound waves through bones, while a lens-based transcranial focusing device has been patented for transskull imaging.
A 3.3 million-year-old fossil skeleton known as Selam has provided the first glimpse into how early human ancestors' spines were organized. The study found that portions of the human spinal structure enabling efficient walking motions emerged over 3.3 million years ago.
A 2.5-year-old fossilized toddler from the species Australopithecus afarensis has provided groundbreaking insights into human spinal column development, dating it back over 3.3 million years. This discovery sheds new light on the evolution of bipedalism and modern human body shape.
Researchers found that ancient turtles' shells evolved from broadened ribs for burrowing, not protection, in a study published in Current Biology. The discovery sheds light on the earliest beginnings of the turtle shell's unique structure.
Researchers developed a new index to predict if extinct mammalian species lived exclusively in water, were occasionally on land, or were fully land-based. The index uses rib strength measurement to differentiate between habitats and was applied to four extinct species with partially or completely aquatic lifestyles.
A newly discovered ancient turtle fossil reveals that the turtle shell initially evolved for burrowing, not protection. The fossil, about 15 cm long, was found by an 8-year-old boy and helps solve a long-standing mystery in the field of evolutionary biology.
A team of paleontologists, including Denver Museum of Nature & Science curator Dr. Tyler Lyson, has discovered that the earliest turtle shells were not for protection, but rather an adaptation for burrowing underground. The broadened ribs in early proto turtles allowed them to dig and escape harsh environments.
A study analyzing hip fracture patients found a nearly 15% increase in anti-osteoporosis medication prescriptions and a 14% decline in subsequent fractures after the introduction of generic alendronic acid. Notably, this was accompanied by a 22% reduction in hip fractures.
Bowhead calves experience severe bone loss to sustain growth of their enormous heads and baleen plates, outpacing body growth by years. This unusual adaptation allows the whales to catch prey with efficient baleen, compensating for limited baleen at weaning age.
Researchers have uncovered the first confirmed report of tadpoles from the Indian Dancing frog family, revealing unique adaptations such as muscular eel-like bodies and skin-covered eyes. These findings provide valuable information for conservation of ancient and endemic frogs in the Western Ghats biodiversity hotspot.
Researchers have developed a low-cost pediatric rib cartilage model using 3D printing, allowing aspiring surgeons to practice auricular reconstruction. The models closely resemble real cartilage and offer the opportunity for individualized practice, potentially improving surgical outcomes.
A 54-year-old Spanish man received a revolutionary new implant made from 3D printed titanium alloy, designed to replicate the intricate structures of his sternum and ribs. The innovative prosthesis was created by medical device company Anatomics in collaboration with CSIRO's 3D printing facility Lab 22.
Using a patient's own rib cartilage for rhinoplasty has been associated with low rates of long-term complications and problems at the rib site. The study found that warping and hypertrophic chest scarring had relatively high complication rates, highlighting the need for surgeons to take extra precautions to reduce these issues.
Researchers discovered that tortoises' modern breathing apparatus was already in place in the earliest fossil tortoise, Eunotosaurus africanus. The study suggests a gradual increase in body wall rigidity led to the evolution of both the tortoise shell and unique breathing mechanism.
Scientists have found that turtles breathe with the aid of a muscle sling attached to their shell, which contracts and relaxes to aerate the lungs. The origin of this unique ventilatory apparatus was discovered in the ancient fossil reptile Eunotosaurus africanus.
The RIBS IV trial reported that everolimus-eluting stents (EES) provide superior late angiographic results and better late clinical outcomes compared to drug-eluting balloons (DEB). EES demonstrated a larger in-segment minimal lumen diameter at nine months and higher rates of freedom from target lesion revascularization.
Researchers found that removing only the rib cartilage, but leaving its surrounding perichondrium intact, allowed for rapid repair within one to two months. This discovery suggests the presence of progenitor or stem cells in the perichondrium, which could lead to new regenerative therapies.
BYU professors create sloped channels with micro posts or ribs, producing highly hydrophobic surfaces. These surfaces could significantly speed up steam condensation in power plants, saving time and costs.
Researchers found that woolly mammoths had a high incidence of abnormal neck vertebrae, including cervical ribs, which are often associated with inbreeding and environmental stress. This suggests that reproductive issues may have contributed to the mammoths' decline and eventual extinction.
Narrow stripes of dirt and rock beneath massive Antarctic glaciers create friction zones that slow the flow of ice toward the sea. The process is strongly affected by how water infiltrates the space between the ice sheet and the bedrock, researchers found.
The RIBS V trial found that both drug-eluting balloons and stents provide excellent long-term clinical outcomes for patients with bare metal stent restenosis. Angiographic results showed superior late angiographic results for drug-eluting stents, but low rates of clinical and angiographic recurrences in both groups.
A benign bone tumor has been discovered in a 120,000-year-old Neandertal rib fragment, providing a unique link to modern humans. The fibrous dysplasia tumor was identified through advanced imaging techniques and sheds light on the health of ancient human populations.
Researchers have studied cicadas to understand their sound production, which is unique in the insect world. The cicada's chirp is nonlinear and involves a ribbed membrane that vibrates when its body deforms.
Researchers have discovered that turtles began living in shells around 40 million years ago, challenging previous estimates of their evolutionary history. The study, published in Current Biology, suggests that the earliest known species of turtles, Eunotosaurus africanus, had a shell-forming mechanism similar to modern turtles.
Researchers studied an extinct South African reptile, Eunotosaurus, to understand the evolution of the turtle shell. The findings revealed that the shell is made up of approximately 50 bones and was gradually modified over millions of years.
Researchers discovered that steroid drugs can suppress a molecule key to rapid bone loss in rib fractures, reversing bone loss and improving lung function. The study's findings challenge the conventional understanding of steroids as causing bone loss.
A Texas A&M study confirms that humans were hunting mastodons in North America around 13,800 years ago, 800 years before the traditional Clovis culture. This find supports extinction theories of large mammals at the end of the last Ice Age.
Researchers at UCSF have discovered a novel way genes are expressed in different tissues throughout life, using a mutant mouse with extra ribs. This finding has broad implications for understanding developmental diseases and may lead to new cancer therapies.
Research by University of Alberta graduate student Scott Persons reveals T.rex's long tail was a key factor in its exceptional speed. The dinosaur's caudofemoralis muscles, attached to upper leg bones, provided the power stroke for fast forward movement.
Charcoal has a long history dating back 38,000 years and has been used in various ways beyond its use in grilling. It can be made from diverse materials like wood, corn cobs, and coconut shells. Moreover, charcoal is considered a renewable replacement for coal.
Researchers from Instituto Gulbenkian de Ciencia found that making ribs is an active process in vertebrates, balanced by Hox genes. They discovered a coordinated mechanism controlling the production of both ribs and associated muscles.
A 4m shark named Cosmopolitodus hastalis attacked an extinct dolphin species 2.8m long, causing severe damage and intense blood loss, researchers have found through forensic analysis of bite marks on the skeleton.
A study of 357 patients who underwent rhinoplasty using irradiated homologous costal cartilage found low complication rates, including 3.25% warping, infection, or resorption. Patient satisfaction was high at 94.2%, making this graft material a reliable alternative to autologous cartilage.
Researchers at Duke University propose that a thrown spear, like one used by modern humans, was the likely cause of a fatal injury to a Neandertal man between 50,000 and 75,000 years ago. The wound's downward angle and lack of significant kinetic energy suggest a projectile weapon was used.
Scientists have found evidence that turtle shells are bony extensions of their backbones and ribs. The oldest known turtle fossil, Odontochelys semitestacea, has a partial shell extending from its backbone and widening of ribs, suggesting it was a water dweller.
Researchers discovered that alligators use a combination of muscles to shift their lungs and maneuver in the water. This unique ability allows them to dive, surface, and roll sideways without creating disturbance. The study highlights the importance of specialized muscles in aquatic animals for navigation and stealth.
Researchers analyzed crash test injuries with CT imaging to improve car safety. The study found that CT scans accurately predicted rib cage damage caused by simulated car collisions.
Researchers at OHSU are testing a new device called the U-plate to aid in repairing broken ribs. The study aims to identify individuals who benefit most from surgical repair versus nonsurgical therapy.