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24 articles from ScienceDaily

Imaging single spine structural plasticity at the nanoscale level

Researchers have developed a new imaging technique capable of visualizing the dynamically changing structure of dendritic spines with unprecedented resolution. By combining two cutting-edge types of microscopies, scientists now have the tools necessary to unravel the ultrastructural complexities of spines during the process of synaptic plasticity.

Gut bacteria influence brain development

Extremely premature infants are at a high risk for brain damage. Researchers have now found possible targets for the early treatment of such damage outside the brain: Bacteria in the gut of premature infants may play a key role. The research team found that the overgrowth of the gastrointestinal tract with the bacterium Klebsiella is associated with an increased presence of certain immune cells...

Severe infections during pregnancy associated with complications around childbirth

Individuals who are hospitalized during pregnancy due to sepsis have higher odds of complications surrounding childbirth, according to a new study. The study found that pregnancies complicated by sepsis were associated with an increased risk of cesarean delivery, postpartum hemorrhage and preterm delivery, highlighting the risk of any severe infection during pregnancy.

Identification of plant-parasitic nematode attractant

Scientists have purified and identified an attractant for crop-infecting root-knot nematodes from flaxseeds. Their experiments revealed that rhamnogalacturonan-I (RG-I), a flaxseed cell wall component, can attract root-knot nematodes. The linkages between rhamnose and L-galactose are essential for the attraction.

Predicting possible Alzheimer’s with nearly 100 percent accuracy

Researchers have developed a deep learning-based method that can predict the possible onset of Alzheimer's disease from brain images with an accuracy of over 99 percent. The method was developed while analyzing functional MRI images obtained from 138 subjects and performed better in terms of accuracy, sensitivity and specificity than previously developed methods.

Subscription-based payment models may improve access to hepatitis C medications

Subscription-based payment models (SBPM), a novel approach in which states contract exclusively with a single manufacturer to supply prescriptions at a reduced price, could increase access to these life-saving treatments, according to a new study. In a SBPM, states pay reduced per prescription prices for medications until a certain utilization threshold. After this threshold, the cost of...

Analyzing successful Judo throws

Researchers use statistical methods on video data to quantitatively determine the biomechanical techniques correlated with successful judo throws. This work may assist in developing supervised or self-guided training routines.

The first cells might have used temperature to divide

A simple mechanism could underlie the growth and self-replication of protocells -- putative ancestors of modern living cells -- suggests a new study. Protocells are vesicles bounded by a membrane bilayer and are potentially similar to the first unicellular common ancestor (FUCA). On the basis of relatively simple mathematical principles, the proposed model suggests that the main force driving...

Secret garden: Drug-resistant pathogen strains meet and evolve on plant bulbs

Researchers have found that drug-resistant strains of a potentially deadly fungus isolated from a tulip bulb showed evidence of genetic recombination and fungicide resistance. The team revealed that plant bulbs provide a place for strains of the human pathogen Aspergillus fumigatus, which can cause highly lethal fungal infections, to evolve drug resistance.

Gut and heart signals affect how we see ourselves

Research has discovered that the strength of the connection between our brain and internal organs is linked to how we feel about our appearance. The study has investigated the association between body image and the brain's processing of internal signals that occur unconsciously. It found that adults whose brains are less efficient at detecting these internal messages are more likely to experience...