A new study reveals that transcranial sonography is more sensitive than MRI and CT in detecting residual tumors and predicting patient survival after brain tumor surgery. This non-invasive imaging technique offers advantages, including lower cost, portability, and ease of use, making it a valuable tool for follow-up care.
Research reveals that insulin resistance is a significant risk factor for atherosclerosis in white and Hispanic populations, affecting up to 90% of diabetics and 10-20% of non-diabetics. In contrast, African Americans are not found to have the same association, despite being four times more likely to suffer from strokes.
Researchers found ultrasound can accurately diagnose disc bulges and herniations, as well as detect soft tissue abnormalities. This non-invasive technique may help document clinical problems and reduce healthcare costs compared to MRI.
Researchers found that low-frequency ultrasound enhances the effectiveness of thrombolytic drugs in dissolving blood clots deep within the brain. This combination therapy may reduce the duration and doses of medication needed, minimizing risks of bleeding and other complications associated with stroke treatment.
Scientists at Yale University School of Medicine have discovered a link between the drug phencyclidine (PCP) and cognitive deficits in schizophrenia. The study found that PCP induces similar cognitive dysfunction as that found in patients diagnosed with schizophrenia, but also suggests potential for reversal using clozapine.
A handheld laser device can detect sickle-cell anemia and track cell structure changes, distinguishing between cancerous and non-cancerous cells. The device is expected to reduce analysis time for victims of terrorist biological or chemical attacks, facilitating prompt treatment.
Researchers monitored 60 migraine patients using transcranial Doppler ultrasound before and after six months of treatment. The study found that two-thirds of patients reported clinical improvement, with changes in blood vessel velocity supporting the findings.
A new study reveals that Drug Abuse Resistance Education (D.A.R.E.) is ineffective in preventing long-term drug use, while school-based sex education programs also show limited success. The Children's Television Act has failed to promote educational children's shows on TV.
Researchers studied 10 patients with acute bacterial endocarditis and found that 80% continued to have microembolisms up to four weeks after treatment. Microembolisms can induce brain abscesses and lesions leading to stroke, and antibiotics alone may not be sufficient to prevent this risk.
A new study by Ohio State University found that nearly six out of ten high school girls with eating disorders or related symptoms deny needing help. The research suggests a lack of recognition about the severity of these behaviors, highlighting the need for targeted education programs to address normalized thinness and promote awarenes...
A study by Ohio University researchers found that oak regeneration is not as promising in areas with high light and low moisture conditions. If oak seedlings are not present in sufficient numbers, mature oaks will be replaced by other tree species, potentially disrupting the ecosystem.
According to Chris Carr, a sports psychologist at Ohio State University, athletes often perform better and are happier if they focus on meeting personal goals rather than winning all their events. This approach helps athletes gain control over their performance and measure their improvement against themselves.
A color-blind approach to equal opportunity for all Americans is unlikely to succeed, according to research by James H. Jones, Ph.D. The study found that humans react to racial differences at an elementary level, revealing deep-seated biases.
A new ultrasound technique using transcranial Doppler and duplex carotid ultrasound can accurately measure carotid artery blockages, reducing the need for cerebral angiography and associated risks. This method is a safer alternative for assessing blockage before deciding on surgery for stroke prevention.
The team, led by Gregory L. Snider, has successfully demonstrated a transistorless approach to computing using quantum dots. This technology could lead to the development of smaller, faster, and more powerful computers with increased storage capacity, potentially replacing conventional microelectronic devices.
Virginia Tech Professor Doris Teichler Zallen explains the options, limitations, and problems of genetic testing for disorders like Alzheimer's, breast cancer, and muscular dystrophy. She highlights the need for informed consumers to weigh the benefits and risks of testing against their personal values and circumstances.
Researchers use transcranial Doppler ultrasound to monitor brain activity as it happens, detecting increased blood flow during thinking and decreased flow when tasks are resolved. This technology has implications for treating mental illness, stroke recovery, and even lie detection.
Research shows that the tannins produced by oak trees inhibit gypsy moth caterpillar growth and viral infection, with enzymes like PPO playing a key role in this process. This discovery could lead to new methods for controlling gypsy moth populations.
Researchers from Germany used a prototype magnetic sensor workstation to reconstruct transcranial ultrasound in 3D, significantly improving the identification of intracranial arteries and accuracy of follow-up measurements. The new technology also enables easier comparison of relationships among brain arteries.
Studies found that tree species' moisture preference doesn't always correlate with their growth rate during droughts. Researchers used tree rings to analyze the energy stored in trunks, revealing inconsistencies between leaf physiology and radial growth.
Pediatric heart surgeons are using ultrasound to monitor patients for potential brain damage during and after open-heart surgery. The non-invasive method, Transcranial Doppler, can detect air in the brain circulation when it is ejected from the heart, providing valuable feedback for surgeons.
Researchers developed a molecular radar system to track signaling enzymes inside cells, allowing them to map the exact progress of intercellular messengers during embryonic development. This achievement has valuable implications for understanding how signals are transferred inside cells and how they go awry in diseases like cancer.
The study, led by psychologist Barbara Kerr, Ph.D., found that young adults raised in happy families were more likely to grow up in larger-than-average families and have parents who spent more time at home. These families often had occupations considered creative and encouraged children to participate in artistic activities.
A new study by German neurologists found that transcranial color-coded duplex sonography (TCDS) is 90% effective in distinguishing between ischemic and hemorrhagic strokes under emergency treatment conditions. TCDS can accurately diagnose stroke type in most cases, making it a fast and reliable option for acute stroke treatment.
A multilevel study of collective efficacy found that neighborhoods with strong, trusting relationships between neighbors have a lower homicide rate. Collective efficacy is characterized by mutual trust and support among residents, who are willing to intervene in crime and delinquency.
Researchers have identified a new compound, GW5638, that strengthens bones and improves cardiovascular health like natural estrogen, while stopping the growth of cancer in uterine cells. The compound's potential may replace tamoxifen as a treatment for breast cancer.
Most educational software evaluated by Ohio State University researchers lacks essential content and fails to promote collaborative problem-solving, instead focusing on entertainment elements. Language arts software shows promise, but science and math programs fall short in addressing broader concepts.
Research suggests that women under 50 may experience false-negative mammogram results when screened during the luteal phase of their menstrual cycle. By scheduling mammograms during the first half of their cycle, the accuracy of breast cancer detection can be improved.
Researchers at MGH discovered a striking similarity between the worm C. elegans' aging gene daf-2 and the human insulin receptor, implying that insulin-like control of metabolism is ancient. This finding suggests human counterparts of other worm genes may be defective in diabetes.
A new ultrasound contrast agent, Levovist, has been used to treat an ischemic stroke in a German patient. The agent revealed the blocked artery and allowed doctors to dissolve the clot with thrombolytic rTPA, restoring blood flow to the brain within 40 minutes of admission.
Researchers have identified a crucial telomerase subunit, hEST2, expressed in primary human tumors but undetectable in normal tissues. This discovery paves the way for developing anti-telomerase drugs to target cancer cells and halt their immortal growth.
Researchers found that people with porphyria, a group of disorders causing chemicals to accumulate in the body, have low vitamin C levels in their blood. Increasing dietary levels of vitamin C may help prevent porphyrin accumulation and skin damage.
Research finds that stream biodiversity is slow to recover from long-term agricultural impacts, with diversity greater in forested areas. However, forest regeneration may alleviate some effects, but complete recovery may take years.
A recent study suggests that many people have unrealistic views of the power of hypnosis, with 28% of warned subjects and 44% of non-warned subjects developing false memories. Researchers warn that warnings are only partially effective in preventing pseudomemories.
A Weizmann Institute study suggests that master-key antibodies interact with proline on proteins and protein fragments to escort them out of the body. This research provides scientific basis for theory that these antibodies may remove broad range of unneeded proteins without affecting beneficial ones.
Researchers have identified the daf-2 gene as a potential target for slowing aging in humans. Altering glucose metabolism may be crucial in extending lifespan. By understanding this mechanism, scientists hope to uncover new strategies for promoting healthy aging and increasing human longevity.
A new gene, AIB1, has been discovered in breast cancer cells that amplifies their growth. The gene is part of a family known as SRC-1 and interacts with steroid hormone receptors, enhancing tumor cell growth.
Scientists at the Weizmann Institute successfully created uniformly oriented crystals of varying sizes by fine-tuning the small remaining mismatch between two materials. The method, using a technique called electrodeposition, holds promise for developing tiny semiconductors with new optoelectronic properties.
A study by Purdue University researchers found that adolescent girls aged 12-15 require 1,300 milligrams of calcium per day to achieve maximum bone growth. The new recommendation aims to address the fact that nine out of ten teenage girls do not meet the current daily intake of four cups of dairy products.
Researchers have made a major breakthrough in understanding prion diseases by fully decoding the three-dimensional structure of the normal prion protein. This discovery may play a key role in the conversion of normal to disease-inducing prions, potentially leading to new treatments for BSE and Creutzfeld-Jacob disease.
Researchers have discovered powerful evidence that an ancient common ancestor invented a set of body-building genetic machinery that has survived to this day. This discovery revolutionizes our understanding of the origin of animal life, as it reveals that the development of appendages was solved just once in the distant past.
A University of Georgia ecologist has estimated the relative importance of predation and plant quality on insect populations using time-series analysis. The study found that top-down forces regulate winter moth populations, while bottom-up forces dominate green oak leaf roller moth populations.
The study reveals that a low-dose pretreatment with certain DNA-crosslinking agents can temporarily suppress P-glycoprotein production, increasing the sensitivity of drug-resistant cells to chemotherapy. This approach may increase the efficacy of cancer chemotherapy in patients and minimize drug interactions.
Scientists have found genetic switches that underlie the evolution of novel body structures, including distinctive feeding limbs called maxillipeds. In crustaceans, variations in the pattern of activity of two Hox genes correspond with anatomic changes tracing ancestral relationships and evolution.
A new vagus nerve stimulator device has been shown to prevent epileptic seizures in over 30% of patients, with some becoming completely seizure-free. The device, which is battery-operated and inserted just below the collarbone, sends electric current to stimulate the vagus nerve without impairing heart rate or cardiac cycles.
Researchers say that physicians' negative reactions to female circumcision may drive circumcised women away from health care. A study found that more than 80 percent of African refugee women in the US are circumcised and need knowledgeable treatment. Guidelines for caring for circumcised women have been developed to address this issue.
Researchers successfully controlled El Nino's behavior in a complex prediction model by altering values for deep ocean waves. This achievement may help improve El Nino event predictions, leading to measures that reduce global damage.
Researchers found a causal relationship between sleep-disordered breathing and hypertension in a substantial number of American adults. People with mild to moderate sleep apnea were 1.8 times more likely to have hypertension than those without, with the severity of apnea linked to increased blood pressure risk.
A research team has discovered a key gene in the human telomerase enzyme, which could aid in diagnosing cancer. The discovery also provides opportunities for developing new treatments by inhibiting the enzyme.
A Canadian survey analysis suggests that language barriers are a significant factor in reduced healthcare access for non-native English speakers. Researchers urge improving communication with such patients to increase participation in preventive health programs, but caution that some solutions may be too costly or ineffective.
Scientists pinpoint exact spot where snake venom latches onto receptor, paving way for synthetic antidote. The new treatment could be more effective and faster-acting than current method, eliminating risk of allergy.
Researchers are analyzing the weathering of spent mushroom substrate over three years to assess leaching, organic composition, and nitrogen content. This study aims to improve the environmental sustainability of the mushroom industry by understanding the best ways to reuse this substrate.
A recent study found that five football players died in the 1996 season, with four resulting from brain injuries and one from a blow to the chest. Additionally, nine young men were permanently paralyzed, including six high school players, due to head injuries or heatstroke.
A recent study found that children using the 'Let's Talk About Living in a World With Violence' workbook became less aggressive when their teachers were comfortable with the curriculum and integrated it into other subjects. Children whose teachers did not integrate the material showed no significant differences in aggression.
The National Science Board will meet on August 20 at the National Science Foundation, addressing key topics such as industry reliance on publicly-funded research and federal support for scientific research. The agenda includes a media availability with NSB Chairman Dick Zare and NSF Director Neal Lane.
Peter Nagy's research uses laser irradiation to pinpoint damage specific to fatigue in older aircraft. By detecting changes in metal behavior when heated, he can identify the inherent degradation of materials and prevent further cracking.
Researchers found that Phyllopod and Sina proteins team up to target the Tramtrack protein for destruction, allowing cells to become neurons. This discovery sheds light on the nervous system and brain development, with potential applications in cancer research.
Researchers studied 93 gay men with HIV who showed no symptoms when they entered the trial. Stress levels were found to be significantly associated with disease progression, with higher severe life stress increasing the odds nearly fourfold over two years.
Researchers have discovered cellular and biochemical mechanisms that could lead to the development of new drugs to prevent or treat Huntington's disease. The study identifies neuronal intranuclear inclusions as aggregates of huntingtin protein, which interacts with brain cells.
A study of 44 siblings of children who survived bone marrow transplantation found that sibling bone marrow donors showed more adaptive skills in school, while those who were not donors had more school problems. Both groups experienced post-traumatic stress after the transplant.