Researchers at Carnegie Institution and Stanford University used green fluorescent protein tagging to observe microtubule formation and movement in living plant cells. They found that most new microtubules are born at multiple sites directly at the cortex, and migrate around by growing at their leading ends.
Researchers at Cardiff University discovered that inflating urinary catheters with a solution of triclosan inhibits the formation of crystalline biofilm, preventing blockages. The method could have practical applications in controlling catheter encrustation and treating urinary tract infections.
Exclusive breastfeeding rates increased by 33% with counselling, while diarrhoea decreased by a third at three months and 15% at six months. No negative impact on infant growth was observed in either group.
Researchers at Stanford University have witnessed the birth and growth of individual microtubules in plant cells, discovering a unique process called treadmilling. This process involves the addition and removal of protein subunits from the microtubule ends, leading to its movement across the cell.
Researchers have made a significant discovery about the role of hydrogen peroxide in cellular signaling, which could lead to new avenues for cancer research. The study found that hydrogen peroxide plays a key role in signaling cells to divide or die, with potential applications for anti-cancer therapies.
Researchers at Purdue University have determined the age of a fossilized skeleton found in South Africa to be approximately 4 million years old. This finding could mean that hominids such as Australopithecus were present in southern Africa earlier than previously thought.
A study by the Wildlife Conservation Society reveals that increased robusta coffee production has led to widespread deforestation in Indonesia's lowland forests. As a leading consumer of robusta coffee, the US can play a key role in halting this wave of deforestation by reasserting itself as a strong member of the International Coffee ...
A minimally invasive esophagectomy procedure has been shown to improve survival rates and reduce hospital stays for patients with esophageal cancer. The study, which evaluated 221 patients, found that median hospital stays were seven days compared to over 10 days for open procedures.
A University of Pittsburgh study examines the effects of gastric bypass surgery on type 2 diabetes in 1,150 patients over a five-year period. The results show that diabetes resolves after an average of 62 days following surgery, with patients experiencing significant weight loss and improvement in glucose levels.
Researchers have found that green tea polyphenol EGCG can reactivate dying skin cells, accelerating their growth and differentiation. This could lead to new treatments for skin diseases and wounds, such as aphthous ulcers and psoriasis.
Research suggests that undernutrition in pregnant women can lead to premature birth, with fetuses having accelerated adrenal gland maturation and premature delivery. Despite this, lambs born prematurely were not underweight or small for their gestational age.
The Department of Energy has awarded $9 million to IBEA, led by J. Craig Venter, to study microorganisms in the Sargasso Sea and explore their potential for producing hydrogen and reducing carbon dioxide emissions from energy sources like petroleum and coal.
The article discusses how war affects public health, citing concerns from medical editors about the profession's responsibility to address these issues. It highlights the need for doctors to raise debate over the consequences of coalition actions.
Researchers analyzed historical records of measles and whooping cough infections in European cities from 1883 to 1932, finding that the diseases exhibit negative correlation when one disease removes susceptible hosts. This 'ecological interference' can lead to alternating cycles of infection, affecting multiple strain dynamics.
Researchers discovered that lambs born from undernourished mothers exhibit significantly shorter gestation periods compared to those from well-fed mothers. The study suggests that maternal undernutrition around the time of conception may trigger an early birth, potentially due to hormonal changes in fetal development.
A simple lab exercise introduces students to exploring catena soils, recognizing horizon changes, and associating auger holes with soil descriptions. The exercise helps students understand the impact of topography on soil properties and apply this knowledge to real-world scenarios.
Researchers identified a previously unknown protein-aldolase interaction that drives the parasite's movement into cells. This discovery may lead to the development of small molecules blocking this mechanism and treating diseases like toxoplasmosis and malaria.
Researchers found that a bacterial enzyme, peroxiredoxin, controls the balance of hydrogen peroxide in cells. The enzyme regulates hydrogen peroxide levels to prevent damage while allowing it to signal important cellular processes.
A Rutgers scientist has found evidence of 'onions' in space, which are tiny but intricate components of nanotechnology. The discovery confirms that carbon onions are responsible for the way light is absorbed by dust in deep space.
Conlon and Raff's study found that mammalian cells do not use cell-size checkpoints to determine when to divide, unlike yeast cells. Instead, they rely on extracellular signalling from other cells to coordinate growth and division.
A rural Indian community study found that training healthcare workers to promote exclusive breastfeeding until age 6 months reduced diarrhea rates by a third. Exclusive breastfeeding rates were also significantly higher in the intervention group compared to the control group.
A study published in Environment and Behavior found that rural children living in homes with more nature exhibits lower levels of psychological distress. The researchers also discovered that the benefits of exposure to natural environments are not limited, even in rural settings with abundant green landscapes.
Mammography screening has been shown to significantly reduce breast cancer mortality in European countries. Studies found that women aged 40-69 years who received screening had a 44% reduced risk of dying from breast cancer, while those not screened had a 16% reduction.
A research paper analyzed ice crystals from Hurricane Nora's cirrus clouds, revealing the presence of sea salt and plankton. The study found that hurricane winds transported marine life particles to high altitudes, affecting ice crystal growth and shape.
Researchers discovered that tau and alpha-synuclein proteins interact to form brain lesions in both diseases, potentially leading to effective treatments for both conditions. The study found that inhibiting the formation of one type of amyloid lesion may also prevent the other.
A study published in the American Journal of Human Genetics has identified two overlapping genes on chromosome 13 as increasing susceptibility to bipolar disorder, affecting 2 million Americans. The same gene complex is also linked to an increased risk for schizophrenia.