A study published in PLOS Medicine found that Mexico's nonessential food tax led to a significant decline in energy-dense food purchases, primarily among low and medium SES households. The study showed a 5.1% decline in taxed food sales beyond pre-tax trends, with lower SES households experiencing an even greater reduction of 10.2%.
A study of over 2.1 million people found that those who cooked at home more frequently had a lower risk of developing type 2 diabetes. The research suggests that preparing meals at home can contribute to diabetes prevention efforts through improved nutritional and lifestyle habits.
A recent study reveals that bacteriophage PAK_P3 degrades bacterial RNAs and scavenges pyrimidine nucleotides to replicate. This finding highlights the prominent role of RNA metabolism in phage infection, offering a new understanding of phage therapy's potential.
Researchers developed a fast and non-destructive method to detect Wolbachia bacteria in Aedes mosquitoes using near-infrared spectroscopy. The technique shows high accuracy in detecting the presence of Wolbachia strains, including benign and aggressive forms, with an average accuracy of 96-92%.
Researchers develop CRISPR/Cas9 guide RNA sequences targeting latent herpesvirus DNA in infected human cells, suppressing virus replication. Efficient elimination of EBV genomes was observed, while HCMV replication was impaired with simultaneous editing at multiple critical sites.
A new study published in PLOS Computational Biology found that genes involved in cellular remodeling are conserved across honey bees and mammals, suggesting a common origin for social behavior. These findings provide insight into the evolution of complex sociality in animals.
Researchers found conserved microRNAs involved in regulating blastema formation across three evolutionarily distant species, including salamander and ray-finned fish. The study suggests a potential common regulatory process for limb regeneration.
A 25-year study found that despite decreased malaria transmission in Africa, older children are increasingly contracting the disease due to decreased immunity. The shift is attributed to changes in bednet usage, which may hinder progress toward malaria elimination.
A new study published in PLOS Medicine found that obesity in early adulthood is associated with a significantly increased risk of developing multiple sclerosis. The research, led by Dr. Brent Richards, used Mendelian randomization to investigate the link between genetically determined obesity and MS risk. The study found that an averag...
A study published in PLOS Medicine found that 70% of randomized trials' protocols mentioned industry-academic agreement on publication rights, with industry retaining review or disapproval rights. The findings suggest a lack of transparency and potential conflicts of interest.
Rabies tests fail to yield accurate results in over half of positive samples, raising concerns for human safety. The study highlights the need for improved quality control measures among producers to ensure the reliability of these tests.
Plant pathogens use DNA-degrading enzymes to escape extracellular DNA traps generated by host root border cells. The researchers found that a soil-borne bacterium causes destructive wilt disease in plants and uses endonucleases to destroy the traps, compromising its ability to invade roots.
Scientists have improved integration of biological data using Wikipathways, enhancing understanding of diseases like diabetes and asthma. The technology aggregates information from various databases, including DisGeNET and the EBI Expression Atlas, to discover new therapeutic targets.
Scientists have developed a detailed computational model of the electrophysiology of congestive heart failure, allowing them to simulate subtle changes at the cellular and tissue levels. The 'virtual heart' model also helps researchers plan a new strategy against a specific form of fibrillation associated with heart failure.
A worldwide competition of engineered cells through microfluidic mazes revealed that neutrophil-like cells must balance speed against chemotactic accuracy. An adapted version of the amoeba Dicty with increased activity of a particular protein, Ric8, emerged as the most successful strategy.
Bowhead calves experience severe bone loss to sustain growth of their enormous heads and baleen plates, outpacing body growth by years. This unusual adaptation allows the whales to catch prey with efficient baleen, compensating for limited baleen at weaning age.
A study found that genetically raised CRP levels are linked to a reduced risk of schizophrenia. The researchers also discovered associations between elevated CRP and increased risks for arthritis, bipolar disorder, and high blood pressure.
Clinical research waste is estimated at 85% of total medical research costs. Professor Ioannidis argues that reforming clinical research with problem-base, context-placing, and patient-centered features can make it more useful to clinicians. This would result in more efficient and effective clinical decision-making.
A new study published in PLOS Computational Biology found that adolescents are more receptive to rewards than punishments of equal value. The researchers suggest using positive reinforcement methods in education and parenting to encourage desired behavior, as reward-based systems may be more effective for this age group.
Researchers found that mosquito saliva increases endothelial permeability, enhances immune cell migration, and promotes the spread of dengue virus during antibody-dependent enhancement. This study suggests a critical role of mosquito saliva in exacerbating dengue disease severity.
A study published in PLOS NTDs examined the immune response to a bivalent whole cell oral cholera vaccine in Haitian adults. The researchers found that the booster dose after 2 weeks did not stimulate the immune system further, suggesting an optimal dosing schedule may be needed.
Scientists found that the range of frequencies produced by vocal cords depends on their stretchiness and stiffness. This discovery has implications for treating damaged vocal cords and improving singing techniques. The researchers used data from 16 species, including humans, to develop a model that explains how the cord's properties af...
Researchers found that some male banana fiddler crabs in Australia use a coercion tactic to mate, trapping females in tight burrows. This strategy increases mating odds for males when females enter first.
A new study has identified the Nuclear Factor Y-B gene as essential for sperm production in the parasitic blood fluke Schistosoma mansoni. The researchers found that suppressing this gene reduced sperm-producing stem cell numbers, highlighting its role in maintaining a balance between self-renewal and differentiation.
A male-killing bacterium has been identified as the cause of female-biased sex ratios in green lacewings. The bacterium is closely related to plant pathogens and may have jumped hosts to infect lacewings. Further research is needed to investigate possible host suppressors against male-killing.
The National Institute of Standards and Technology calls for community action to develop comprehensive toolkit for assuring cell line quality. A DNA fingerprinting method is proposed to detect mix-ups and contamination, addressing a growing priority among funders and publishers.
A large-scale study found a slight increase in risk of cutaneous melanoma among men taking PDE5 inhibitors for erectile dysfunction, but this was largely explained by greater sun exposure. The study suggests that these drugs are unlikely to be associated with an increased risk of skin cancer.
A new business model is required to drive antibiotic development, driven by market failures and perverse incentives that hinder conservation efforts. The proposed delinkage of rewards from sales volume could transform the industry and ensure the development of much-needed new treatments.
A plant-rich diet with high fruit and vegetable intake can reduce type 2 diabetes risk by 20%, according to a new study. A healthier version of this diet further reduces the risk by 34%, while an unhealthy version increases it.
Scientists have discovered a special neural network in the primate brain that anticipates all possible situations, allowing for novel behavior adaptation. This 'reservoir computing' property enables the brain to create a universal representation of combinations, preparing primates for unlimited situations.
Researchers found that Candida-specific CD4 T cells are more susceptible to HIV infection and preferentially depleted earlier than CMV-specific cells. This sequential dysfunction may lead to the early loss of immune control over mucosal candidiasis in HIV-infected individuals.
New research reveals that hierarchy in biological networks arises due to cost constraints on connections, leading to more efficient networks. This finding may accelerate the development of complex computational brains in AI and robotics.
Research identifies genetic basis for social parasitism in Cape bees, where worker bees can reproduce asexually. The study reveals that multiple genes are required for this trait, including those involved in hormonal signaling and chromosomal segregation.
Researchers identified a new mechanism by which streptomycin kills bacteria, targeting the MscL channel pore. Dihydrostreptomycin directly binds and modifies MscL, allowing solutes to exit the cell. This discovery holds promise for developing new antibiotics to combat drug-resistant infections.
A study analyzing oxygen isotopes in fossil teeth from red deer near the Adriatic Sea found seasonal migration patterns, which may have influenced Paleolithic hunter-gatherers. The researchers suggest that the migration patterns of red deer and mountain goats in the region may have impacted human mobility strategies.
A study published in PLOS ONE found that bioluminescence may have evolved independently 27 times in 14 major fish clades, indicating its importance for fish survival. The researchers suggest that bioluminescence is a useful trait that has led to the diversification of many fish species.
Scientists have built a model to investigate the metastasis of cancer by examining the metabolism of breast epithelial cells. The study shows how the metabolic signposts of cancer cell growth can be predicted based on EGFR signaling genes.
A Swedish study found that mothers who gained 4 kg/m2 or more between pregnancies had a higher risk of low Apgar scores, neonatal seizures, and meconium aspiration. Preventing weight gain could reduce birth asphyxia and improve infant health.
A study published in PLOS Medicine found that 32.9% of 3- and 4-year-old children in low- and middle-income countries are struggling with cognitive or socioemotional development. The research estimated that 80.8 million children, or 32.9% of those living in these countries, are failing to meet basic milestones.
A chromosomal rearrangement increases HOXB8 expression in facial skin, affecting feather development, leading to the growth of long facial feathers. The study provides a model for exploring the regulation of HOX genes in different parts of the body during development.
A new study reveals that an enzyme called NMNAT2 helps protect neurons from protein clumps, which cause degenerative brain diseases. Higher levels of NMNAT2 were found in people with greater resistance to cognitive decline.
A study of mitochondrial genomes from the Huaca Pucllana site in Lima, Peru, found minimal genetic shift, indicating continuity of population over time. The Wari Empire's influence may have been exerted through cultural diffusion rather than population replacement.
In a study on colonial orb-weaving spider Cyrtophora citricola, researchers found that males were twice as likely to mate with well-fed females, suggesting they are choosier due to high mortality rates. Females ate over 80% of their mates, implying cannibalism may promote male mate choice.
A study found that 63% of organizations producing clinical practice guidelines received funds from biomedical companies, but these relationships were seldom disclosed. The study highlights the need for better policy management of conflicts of interest in clinical practice guidelines.
Researchers found that transplanting olfactory ensheathing cells into damaged spinal cord areas significantly improves locomotor performance. The study analyzed 49 studies and identified key factors influencing the therapeutic effect, including timing of application and surgical micro-dissection.
A study published in PLOS Medicine found that recently developed hepatitis C medicines have a wide range of prices globally, with the US having the highest nominal price. The researchers also calculated that treating the entire HCV infected population in some countries could be as expensive as 190% of the total pharmaceutical expenditure.
Researchers analyzed genetic data from 3,726 African-Americans to estimate patterns of ancestry, finding that 82.1% had ancestors in Africa prior to transatlantic travel. The study reveals regional differences in ancestry, with southern US residents having a greater percentage of African ancestry than those in the North or West.
Researchers discovered that new malaria drugs promote premature parasite division by increasing sodium ion concentration, altering membrane composition and killing the parasite. The study found that these changes occur without replicating the parasite's genome, indicating a potential new mechanism of action for antimalarial drugs.
Researchers found that microglia fail to remove dead neurons during epilepsy, leading to accumulation and inflammatory responses. The study's findings provide a new target for therapies aimed at boosting phagocytosis and alleviating brain diseases.
A new neuronal culture system has been developed to study the early stages of prion neurotoxicity, specifically targeting dendritic spines. The research found that prions cause rapid and dramatic changes in spine density, leading to reduced neuron function before actual death.