A recent study found that stem cell mobilization therapy does not improve left ventricular recovery in patients with acute myocardial infarction. Despite significant mobilization of bone marrow stem cells, treatment did not alter infarct size or risk of restenosis or major adverse cardiac events.
In a unique discovery, researchers found that Batwa Pygmies located bee nests for honey, and Apis mellifera subspecies coexist with native-American stingless bees. The Bwindi-Impenetrable National Park's diverse ecosystem lacks ecological information on honey-making bees.
The American Physiological Society selected 14 early-career researchers for the 2006 Caroline tum Suden/Frances A. Hellebrandt award, recognizing their research in physiology and its significance to the field. The awardees will present their work at the Experimental Biology conference in San Francisco.
Researchers have successfully used a gene therapy approach to deliver telomerase, an enzyme that lengthens cell lifespan, without causing tumors in human patients. The technique allows for the growth of blood vessels in patients with vascular disease, offering new treatment options.
Researchers have developed a new application called spectral self-interference fluorescence microscopy (SSFM) that characterizes the structure of DNA molecules with sub-nanometer accuracy. Using this technique, the team estimated the shape of coiled single-stranded DNA and double-stranded DNA of different lengths.
Researchers from NASA and Columbia University reproduced an abrupt climate shift 8,200 years ago by simulating a massive freshwater flood into the North Atlantic Ocean. The study used GISS Model E-R to model the impact of the flood, which caused temperatures to drop several degrees in some areas.
The US Surgeon General has launched a new, free, Web-based tool called My Family Health Portrait to help Spanish-speaking families organize their health histories. The tool provides a graphic printout that organizes information into a diagram or chart, which can be shared with healthcare professionals.
Researchers found that patients with mildly underactive thyroid glands showed no increased risk of heart attacks, strokes, or death. However, those with a mildly overactive thyroid gland had a small increased risk of developing an abnormal heart rhythm.
A mouse model of depression reveals a persistent molecular scar left by chronic stress in the brain's hippocampus. Antidepressants temporarily restore gene expression but fail to remove silencer molecules, highlighting the need for new treatments.
The US has over 400 vacant positions for family physicians in Health Centers, with rural areas hit hardest. Recent funding cuts and declining medical students in primary-care fields exacerbate the problem.
Dr. Worcester is recognized for his pioneering work on acoustical oceanography and tomographic inverse methods, as well as his tireless efforts to develop responsible permitting structures for scientific sound use. He is the eighth recipient of the Munk Award, a testament to his groundbreaking research and leadership in the field.
A study found that older teens who participated in adventure therapy based on Outward Bound lost more weight and maintained it longer than those in an aerobics program. The authors suggest that peer support is a key factor in the success of adventure therapy.
A study suggests that delayed surgical intervention can be a safe alternative to immediate treatment for men diagnosed with early-stage, low-grade prostate cancer. The research found equivalent risks of noncurable prostate cancer in both groups, depending on factors like age and PSA levels.
The study found that US military veterans who served in Iraq had a higher prevalence rate of mental health problems and combat experiences compared to those who served in Afghanistan or other locations. Iraq veterans used inpatient and outpatient mental health services at higher rates, with an annualized rate of utilization of 35%.
A year-long study found that children's learning of Welsh depends on factors such as parental involvement, community speaker numbers, and media use. The majority of parents want their children to learn Welsh, but commitment varies.
Rochester researchers emphasize the need for more accurate and rapid diagnostic tests for concussions to improve treatment outcomes and prevent long-term neurological damage. Current CT scans are often biased, leading to underdiagnosis of significant axonal injuries.
The article discusses the potential link between aluminum salts in deodorants and breast cancer. Researchers believe that exposure to these metals through antiperspirant use may increase breast cancer risk due to their oestrogenic activity.
MRSA has been found to infect a species of amoeba, which can help the bacteria spread between locations. This discovery raises concerns about hospital hygiene and the potential for MRSA to emerge more resistant to antibiotics and virulent.
A study of 3,233 individuals aged 65+ found that subclinical hyperthyroidism was associated with an increased risk of developing atrial fibrillation. However, the study did not find a link between abnormal thyroid function and other cardiovascular problems.
The 12 fellows will examine the dynamic interface of science and religion through seminars and independent research at the University of Cambridge. They aim to advance public awareness of this complex area of inquiry and promote a deeper understanding of its significance.
A study by Dr. Ivan Pedrosa and colleagues demonstrates MRI as a viable alternative to CT scans for diagnosing appendicitis in pregnant women, sparing them from radiation exposure. The study evaluated 51 pregnant women with abdominal pain using MRI, revealing four cases of acute appendicitis, two of which were not detected via ultrasound.
Researchers found that people with smaller anterior cingulate cortex had higher levels of stress hormones, suggesting a potential cause-and-effect relationship. The discovery deepens understanding of ageing, depression, and Alzheimer's diseases, and may lead to treatments targeting reduced stress hormone levels.
The APC tumor suppressor has a novel function in regulating Wnt signaling in the nucleus. In this new study, researchers demonstrate that APC opposes beta-catenin activity directly at Wnt target genes. The findings suggest that full-length APC protein is necessary to repress c-Myc gene expression and prevent colon cancer progression.
Researchers at MIT developed a tool to selectively irradiate blood vessels to study radiation damage. This technique has the potential to reduce side effects for cancer patients treated with radiation therapy.
A Purdue University researcher has developed a more accurate weather prediction model by incorporating the amount of moisture surface vegetation releases into the upper atmosphere. This new approach improved forecasts of storm intensity, location, and timing, leading to better severe weather predictions.
Research found surgically menopausal women experience significantly increased risk of low sexual desire, decreased pleasure, and orgasmic difficulties. Women with low sexual desire were less likely to engage in sex and dissatisfied with their partner relationship.
A new study compares handedness of medieval English villagers to modern-day sample, finding that active individuals display a high degree of asymmetry. Researchers used skeletal analysis to determine changes in hand preference over time, shedding light on the evolution of right- and left-handedness.
A new study published in The Journal of Sexual Medicine found that sildenafil treatment normalizes relationships, confidence, and self-esteem in men with erectile dysfunction. Men with ED who took sildenafil for 10 weeks showed significant improvements in sexual relationship satisfaction, confidence, and self-esteem compared to those w...
A study published in Pediatrics found that children who underwent surgery for obstructive sleep-disordered breathing (OSDB) due to enlarged adenoids experienced a significant increase in excess weight, averaging 13% over 12.6 months. This weight gain may be linked to reduced motor activity and poor sleep quality after the surgery.
A comprehensive survey of 4,091 atomic bomb survivors found a significant association between radiation dose and the prevalence of thyroid diseases, including malignant and benign tumors. Those exposed at younger ages showed higher dose-response relationships for thyroid cancers and nodules.
A team of Brown University chemists has developed a new class of molecules that exhibit fast and efficient catalytic properties, making them suitable for use in the pharmaceutical industry. The compounds also show promise for storing hydrogen and other gases, which could be used to generate clean energy.
Researchers found that physical symptoms of frailty are often reversible and can be addressed through early intervention. The study, published in Archives of Internal Medicine, included 754 participants aged 70 or older and found high rates of recovery from frailty.
Robert A. Weinberg's work on human oncogenes led to understanding cancer's mechanisms of invasion and progression. Angela M. Hartley Brodie developed aromatase inhibitors to prevent breast cancer recurrence in postmenopausal women.
Neural activity prior to an event can predict whether it will be remembered, according to a new study by UCI neuroscientist Michael Rugg. The study found distinct neural patterns that indicate whether words would be recalled in a later test.
Researchers developed a model system for studying neuro-vascular interactions, enabling the creation of stable vascular networks that can connect with larger blood vessel structures. The approach uses a macroporous hydrogel polymer scaffold and co-seeds it with endothelial cells and nerve progenitor cells.
Researchers have created a new model to examine the process by which tumor cells develop an angiogenic phenotype, enabling them to grow rapidly. The study found that non-angiogenic tumor cells can switch to angiogenesis after several months, and that this switch is crucial for tumor growth and metastasis.
A recent study published in Radiology found that nearly a quarter of benign papillary breast lesions were upgraded to atypical ductal hyperplasia or ductal carcinoma in situ after surgical excision. This suggests that these lesions should be surgically removed to prevent potential cancer development.
A recent study found that HPV infection is a top risk factor for cervical adenocarcinoma globally. The research, conducted on eight case-control studies across Africa, South America, and Southeast Asia, revealed an 80-fold increased risk of cervical adenocarcinoma among HPV-positive women.
A new study by Johns Hopkins Medicine found that men with low-grade prostate cancer who receive active surveillance may not be at increased risk of noncurable prostate cancer. The study compared outcomes in men who delayed surgery for two years to those who underwent immediate treatment, finding no significant difference in risk.
A recent study published by the Mayo Clinic found that MPA was more effective than venlafaxine in reducing hot flashes by 79% versus 55%. The single dose of MPA showed long-lasting benefits, with many patients still experiencing a 90% reduction in symptoms after six months.
A recent study found that 67% of teenage and young adult cancer patients successfully banked their sperm, despite initial obstacles such as anxiety and lack of knowledge. The researchers emphasized the importance of incorporating fertility preservation into treatment plans for these patients.
A new study from the University of Michigan Medical School found that a particular surgical procedure, the middle cranial fossa (MCF) approach, can preserve hearing in patients with small acoustic neuromas. The study examined 73 patients and reported a high rate of success, with three-quarters retaining useful hearing after tumor removal.
The program offers primary health care and enables MCG students to practice under faculty supervision. Common ailments among migrant workers include infectious diseases, gastritis, allergies, skin rashes, and musculoskeletal pain.
A new study examines the role of the 'showoff hypothesis' in social decisions among Hadza hunter-gatherers. Most participants chose to live with good hunters to gain access to more food and better nutrients, despite some men preferring poorer hunters to showcase their hunting prowess.
Researchers at Purdue University have developed a new approach that unifies the design and analysis processes, allowing for concurrent computation. This integration enables faster processing of complex problems in industries such as automotive and aerospace, reducing computational power required.
A Yale University study found that older individuals' age stereotypes can predict their sensory perception, with negative and external stereotypes linked to worse hearing outcomes. The study of 546 people aged 70 and older suggested that social psychological factors, such as age stereotypes, may influence hearing decline.
Researchers discovered a new way to form complex networks of nanotubes on the surface of layered crystals. The tubes are prismatic folds with intricate branches and connections, forming in less than a second.
Evolutionary biologist Vermeij suggests that certain traits, such as photosynthesis and human language, are so advantageous that they would reappear in different forms. Many unique innovations are ancient, while repeated ones are known from few specimens due to species extinction.
Researchers discovered pyruvate dehydrogenase phosphatase as a key player in the dephosphorylation of MAD, a Drosophila Smad protein. This finding offers new insights into how BMP signals can be downregulated in various physiological contexts.
Mangroves are a significant source of dissolved organic carbon in the ocean, accounting for nearly triple the estimated amount previously thought to be released from smaller-scale estimates. The mangrove root system slows down the release of carbon-rich leaf litter into shallow sediment, where it is then leached into coastal waters.
Defective apoptosis in dendritic cells can lead to autoimmune diseases such as juvenile diabetes and lupus. Research suggests that unchecked dendritic cell activity or overactivation can trigger the immune system's attack on body tissues.
A 15-year study found that elderly men with higher optimism levels had a significantly lower risk of cardiovascular death. The study also showed that older age, depression, and lower physical activity were associated with lower optimism scores over time.
Researchers found that isolated female rats subjected to a 30-minute stressor recover more quickly and mount a stronger immune response than male counterparts. This difference may be related to the demands of motherhood, which has evolved to provide females with protection against trauma.
Using a chick model, researchers demonstrated that malignant melanoma cells can respond to and be influenced by the embryonic neural-crest-rich microenvironment. This discovery may hold promise for developing new treatments for metastatic melanoma.
Researchers discovered that MAML1 plays a crucial role in regulating muscle cell differentiation, with increased expression leading to enhanced myotube formation and muscle-specific gene expression. The study also found that MAML1 works together with MEF2C to 'turn on' genes required for muscle development.
A study found that older adults in North Carolina predominantly use food home remedies and other home remedies for health management, often as a form of self-care. The study also revealed significant differences in CAM therapy use among ethnic groups, with African-Americans and Native Americans showing higher rates of use.
A study analyzing healthcare utilization data for HIV-infected patients found that HAART is cost-effective as long as patients stick to treatment. However, the study also revealed significant disparities in healthcare costs between healthier and sicker patients, highlighting inadequate reimbursement to treating physicians and clinics.
A study assessing H-pylori status in patients with gastric adenocarcinoma found that positive individuals had improved survival rates compared to those negative for the bacteria. The results suggest that H-pylori status can be a useful tool in clinical practice to distinguish between high and low risk patients.
The Society of Nuclear Medicine and Molecular Imaging (SNM) has awarded $30,000 in grants to three institutions in China and India. The SNM/GE Healthcare Visiting Physician/Scientist Program Grant will cover travel and per diem costs for a one- or two-week visit to lecture, train, and consult on molecular and nuclear imaging.
Researchers identify KCNC3 mutations as causative factors in neurodegenerative diseases, providing a new perspective on the role of potassium channels in human neurodegeneration. The study's findings have significant implications for the development of therapeutic targets and treatment strategies for brain disorders.