Articles tagged with Tissue Structure
Dr. Mary Schweitzer isolated intact soft tissue from a 68-million-year-old Tyrannosaurus rex femur, showing blood vessels and cell-like structures. The discovery, published in Science, suggests that dinosaur fossils may retain some of their original flexibility and resilience.
Researchers at UC Berkeley have discovered three overlapping signals in the embryo that are crucial for proper development of the backbone and belly. By blocking these signals, the team found that tissues form on the back were lost while belly tissues were greatly expanded, leading to a repatterning of the entire embryo.
Scientists used fruit fly larvae to study regeneration and discovered a key gene involved in adapting stem cells to different tissue types. The research challenges old concepts of regeneration and opens new avenues for stem cell research.
Research in post-tsunami Thailand reveals key findings on building materials, structures, and orientations that can help minimize damage. Elevated structures, reinforced concrete, and strong foundations are among the essential elements to consider when designing coastal constructions.
The Center will focus on designing biodegradable tissue engineering scaffolds and novel bioreactors to optimize stem cell responses toward new tissue formation. It will also host collaborations with other laboratories to enhance core projects, such as tissue engineering of human ligaments using transfected adult stem cells.
Researchers at Virginia Tech are developing a computational platform to calculate wind loads and structural capacities of low-rise buildings. The goal is to appreciably reduce damage and increase safety for residential, institutional, and commercial structures vulnerable to extreme winds.
Researchers at Purdue University are developing a system to continuously monitor heat panels on future spacecraft for subtle damage, which could lead to accidents if left undetected. The system uses vibration and sound measurements to detect damage in real-time, making it ideal for periods of highest stress during takeoff and reentry.
A new study found that anabolic steroids can significantly improve the biomechanical properties of bioartificial tendon matrices, making them stronger, more elastic, and better remodeling. This could have clinical applications for orthopedic surgeons, particularly those specializing in shoulder repairs.
Researchers uncover the stimulatory and inhibitory functions of tissue factor in blood vessel generation, shedding light on diabetic retinopathy and potential new treatments. Transgenic mice studies reveal altered structures in pathologically altered vessels, suggesting a possible target for angiogenesis inhibition.
A study found that women with pelvic floor disorders have lower collagen levels in their cervix, regardless of other factors. This intrinsic factor may contribute to these problems, and further studies aim to develop predictive measures.
Researchers at the University of Illinois Chicago have successfully created a human-shaped articular condyle using adult stem cells. The tissue-engineered structure retained both bone-like tissue underneath and cartilage-like tissue on top, similar to a natural articular condyle.
Tissue-engineered pulmonary valves, engineered from patients' own cells, showed excellent performance in first 23 patients with up to three years of follow-up. The valves eliminated post-operative fever and shortened recovery time compared to traditional donor valves.
Researchers at MIT have developed a new method for creating tissues from human embryonic stem cells by seeding them onto biodegradable polymer scaffolds. The resulting tissues showed characteristics of developing human cartilage, liver, nerves, and blood vessels.
Researchers at the University of California, San Diego, have developed a new technique using ultrafast lasers to obtain high-quality images of brain tissue. This technique enables scientists to automate and modernize histology, mapping neurotransmitter production and normal cell function.
A team of University of Toronto researchers has created a biodegradable scaffold that accelerates bone healing rates by providing a building structure for bone growth. The scaffold, similar in structure to a dish sponge, eventually dissolves, eliminating the need for expensive chemicals called bone growth factors.
Researchers have created a new x-ray technique called DEI that enables the visualization of soft tissues such as skin, cartilage, and blood vessels. This technique has potential applications in diagnosis and could enhance mammography and the detection of other soft tissue pathologies.
Researchers are developing a nanoprobe for early cancer diagnosis using optical coherence tomography, potentially replacing traditional biopsies. The probe aims to pinpoint microscopic changes in tissue structure and blood flow with high-speed, high-resolution imaging.
Researchers at Purdue University have developed a new diagnostic method that uses a vibration-based technique to test the structural integrity of composite military materials. The method can detect damage caused by small impacts and has been shown to be sensitive enough to detect damage even in areas where other techniques cannot.
Researchers used a laser scalpel to dissect fruit fly tissue and understand the complex process of dorsal closure, which is crucial for human spinal malformation prevention. The team's findings showed that the system is resilient and can compensate for individual tissue disruptions.
Grape seed extract enhanced wound healing in mice and human skin cells by promoting epidermal tissue formation and connective tissue deposition. It also increased levels of VEGF, a compound that helps rebuild blood vessels.
A study of 45 male identical twin pairs found no difference in disc degeneration between occupational drivers and their non-driving twin brothers. The researchers suggest shifting attention from degenerative changes to other explanations for the link between driving and back problems.
Researchers found that benzene derivatives have higher neurotoxic potency than previously thought. The study suggests related aromatic chemicals may also damage the nervous system, with potential applications as a biological marker of exposure.
Researchers have created a bioartificial trabeculum, or BAT, that exhibits rhythmic contraction at 100 beats per minute and functional cell-to-cell coupling. The model has potential applications in studying cardiac disease and developing new treatments for congestive heart failure.
A study has identified a significant difference in brain tissue structure between individuals with persistent developmental stuttering and those with normal speech. The abnormality may develop during early language and speech acquisition, explaining how disturbed signal transmission affects speech production.
Researchers have identified a single genetic locus in the squash genus Cucurbita that controls phytolith production and plant defense. This discovery will help archaeologists determine whether ancient plants were domesticated or wild varieties by analyzing their phytolith content and cell configurations.
A new ultrasound technique called Acoustic Radiation Force Impulse (ARFI) imaging can detect and characterize breast abnormalities that are deeper and smaller than previously thought. The method uses high-frequency sound pulses to 'feel' the tissues, revealing differences in stiffness and mechanical properties.
The new technology uses magnetic resonance microscopy (MRM) to produce 3-D images of mice at unprecedented resolution, revolutionizing the use of mouse models in understanding human disease. Digital 'Visible Mice' will enable researchers to share and analyze animals electronically, facilitating collaboration across distances.
UCSD bioengineers have fabricated cartilage tissue that mimics the structure and function of natural articular cartilage. The tissue is made entirely from biological materials and has shown promise in laboratory tests, with cells effectively secreting a key lubricant molecule.
Researchers found that PCNA and CAF-1 proteins work together to establish stably inherited silenced chromatin structures. This discovery sheds light on the mechanisms of gene expression inheritance in cells.
Researchers are developing microscopic chips called bioMEMS to monitor and treat serious diseases like heart disease and diabetes. These chips could contain stem cells, medication, or sensors to detect mutated genes or cancerous tissues.
Researchers at Purdue University have devised a way to stabilize nanoparticles made of metal by wrapping them in a molecular coating. This process prevents the nanoparticles from fusing together and allows for easy manipulation, opening doors to new nano-structured materials.
A new imaging technique reveals disrupted microcolumns in brains affected by Alzheimer's disease and Lewy body dementia, suggesting a link between microcolumn organization and cognitive impairment. The study found that the absence of microcolumns correlates with the number of fibrillary tangles, but not senile neuritic plaques.
Researchers used new techniques to study HDL particles, verifying the lipid bilayer structure and confirming a key finding about protein orientation. The study resolves a long-standing controversy over the structure of HDL, shedding light on its role in cardiovascular health.
Researchers solved the crystal structure of human tumor necrosis factor-alpha-converting enzyme (TACE), revealing its unique features and providing insights into its role in inflammatory diseases. The study's findings have significant implications for developing targeted therapies for rheumatoid arthritis and septic shock.
Researchers have solved the structure of the active site of the enzyme responsible for producing nitric oxide, a crucial signaling molecule involved in various physiological processes. The discovery provides insight into how NO production is controlled and may lead to the development of new drugs to modulate its activity.