A newly published paper reveals that Karenia cristata, the source of neurotoxins in a devastating South Australian algal bloom, is the most toxic species ever studied. The bloom caused mass mortality of marine animals and has taken an immense environmental toll on the region.
This study developed a new predictive model to assess chemical risks in cetaceans by considering the freely dissolved concentration of pollutants. The results show that mixed exposure to POPs at current environmental levels poses a low risk of reducing cell viability or inducing apoptosis.
Researchers from Kyushu University have identified a potent compound, 2Z-decaprenol, in the leaves of the Manchurian walnut tree that inhibits weed growth. The discovery could pave the way for a new class of sustainable herbicides.
Scientists isolated seven new compounds from a deep-sea fungus, showcasing potent antifungal activities against Cryptococcus gattii. The discovery expands chemical space and provides a new scaffold for potential drug candidates.
A middle schooler's unique sample of goose poop contained a bacterium with antibiotic activity, yielding a novel compound orfamide N that inhibits human melanoma and ovarian cancer cell growth. The discovery highlights the potential for combined educational outreach and natural product research.
Researchers developed a new method to capture complex mixtures of organic chemicals in blood, finding that many pregnant women carry a mixture of neurotoxic chemicals. The study revealed that these mixtures can act additively to produce harm, even at concentrations below individual chemical thresholds.
A UFZ study found that individual chemicals can have additive effects on human health when combined with other chemicals, leading to increased neurotoxicity. The research analyzed blood samples from pregnant women and found that even low concentrations of chemicals could cause adverse effects on nerve-like cells.
Researchers developed a bio-sensing technology that measures PD1 ligand functionality to predict patient response to anti-PD1 therapy. This technology enables accurate prediction of patient response and tailoring treatments accordingly, improving cancer patients' lives.
Researchers from the Journal of Internal Medicine outline a strategy for analyzing traditional Chinese medicine's effectiveness against rheumatoid arthritis. The approach involves isolating active components of individual plants and testing them in animal models of the disease.
A team of scientists developed a simple-to-implement plasmonic optical fiber biosensing platform to detect estrogenic endocrine disruptors. The platform can detect EEs down to 1.5 ng L^-1 estradiol equivalent concentration, the lowest limit of detection for any estrogen receptors-based detection reported to date.
Researchers associate the enzyme LMWPTP with chemotherapy resistance, metastasis, and autoimmune diseases. Inhibiting this protein phosphatase could lead to novel monitoring and treatment opportunities for cancer and other diseases.
Researchers from Hackensack Meridian Center for Discovery and Innovation and University of Michigan have created a portable 'lab on a chip' that can identify COVID-19 antibodies in human blood in just 15 minutes, significantly faster than current methods.
A global collaboration of ecological researchers, including Kent State University's Dave Costello, has revealed new findings on the effect of climatic factors on river-based ecosystems. The study found that temperature and moisture influenced carbon-cycling rates of river ecosystems.
A new study from the Monell Chemical Senses Center reveals that healthy animals' bodily odors change when they are near sick animals, potentially impacting social contacts and disease spread. The findings suggest that exposure to sickness-related odors can trigger protective responses in others.
A new biosensor allows researchers to track oxygen levels in real-time in organ-on-a-chip systems, making it possible to ensure that these systems mimic the function of real organs. The biosensor uses phosphorescent gel to emit infrared light and measure oxygen concentration down to tenths of a percent.
A new methodology for correlating compound identity to CYP1A2 potency of inhibitors in metabolic mixtures has been developed, providing direct identification of compounds with inhibitory properties. This approach allows for rapid assessment of pharmacokinetic properties of drugs and their metabolites, improving drug development.
Researchers have found that essential oils extracted from citrus fruit peels are highly effective in killing mosquito larvae, suggesting a potential eco-friendly alternative for mosquito control programs. The study, believed to be the first of its kind, uses three citrus species and has shown promising results.
Dr. Hankinson aims to improve breast cancer risk prediction by analyzing blood samples from thousands of NHS participants and studying the insulin pathway. She hopes to validate new hormonal biomarkers that can help identify high-risk women who may benefit from risk reduction efforts.
Researchers at Okinawa Institute of Science and Technology Graduate University developed a new printing method to create effective disease detection tools using microfluidic bioassay devices. The device is about the size of a postage stamp and can detect multiple biomarkers for complex diseases like cancer.
A team of researchers at Fred Hutchinson Cancer Center will use recent technological advances in proteogenomics to identify biomarkers predicting treatment response and novel therapeutic targets for ovarian cancer. The goal is to improve understanding of drug resistance and ultimately enhance patient outcomes.
A new organ culture system developed by Tufts University researchers enables tests of BPA's direct effects on developing fetal mouse mammary tissue. BPA significantly increased tissue growth at environmentally relevant doses, while higher levels inhibited growth.
Dr Lisa Connolly is leading a €4m international initiative to investigate the effects of natural toxins and manmade chemicals on human hormones, causing illnesses like cancer, obesity and infertility. The PROTECTED project aims to develop innovative analysis tools to protect public health from these endocrine disruptors.
Researchers in Madagascar found high levels of insecticide resistance in the flea vector for plague, with only one out of 12 insecticides effective across all populations. The study suggests that different geographical regions require different treatment approaches to effectively combat the spread of the disease.
Researchers found that bed bugs that fed after being treated with insecticides had significantly lower mortality rates than those that didn't. The study suggests that feeding stimulates detoxification enzymes, leading to increased resistance and survival.
A graphene biosensor has been developed to detect cancer risk biomarkers, such as 8-hydroxydeoxyguanosine (8-OHdG), with high sensitivity and speed. The sensor is capable of detecting concentrations as low as 0.1 ng mL-1, outperforming conventional detection methods.
Researchers developed a new protein biomarker test platform that can accurately measure multiple proteins indicative of diseases like graft-versus-host disease. The test uses aqueous two-phase systems and no washing steps, enabling simultaneous measurement of multiple diagnostic proteins.
Researchers develop new technique to quickly uncover novel products produced by bacteria, reducing screening time from thousands to just a few dozen. The method uses genomics and mass spectrometry to detect reactive compounds, enabling the discovery of new antibiotics and anticancer drugs.
A German-Danish team of researchers found that endocrine-disrupting chemicals interfere with human sperm function, changing swimming behavior and triggering digestive enzyme release. The study suggests these chemicals may contribute to widespread fertility problems in the Western world.
Dr. Frederic Zenhausern has been inducted into the Fellows of the National Academy of Inventors for his rapid DNA processing innovations that contribute to Arizona's economic development. His work is aimed at early diagnostics of human diseases, with a focus on integrating bioassay chemistries and biomarkers.
A Rutgers-Camden professor is building a large-scale database of chemical toxicity information, combining in-vitro and computational methods to provide valuable data for scientists. The online database will aid in drug development by helping determine safe doses for patients.
Researchers used X-ray crystallography to visualize how brominated flame retardants bind to proteins like estrogens, potentially disrupting the body's natural hormones. The study sheds light on the effects of flame retardants on human health and provides insights for developing safer alternatives.
Researchers have developed a new technology that uses laser and electric fields to create mini-centrifuge-like whirlpools to isolate microorganisms based on size. This technology has the potential to revolutionize lab-on-a-chip applications, including medical diagnostics and pharmaceutical manufacturing.
Researchers at Purdue University and USDA develop method to test toxins on Hessian fly larvae, finding potential solution to failing genetic resistance in wheat. They discovered that snowdrop lectin disrupts digestive function in Hessian flies, slowing their development.
The Aeras Global TB Vaccine Foundation has received a $362,102 grant from the US FDA to develop new biological and immunological biomarkers for TB vaccine development. The project aims to evaluate four mycobacterial growth inhibition assays and identify T-cell immune responses associated with protective vaccines.
Researchers at the University of Pittsburgh are using a mouse model to identify genes that cause congenital heart defects, which affect up to 1% of live births. The goal is to develop a diagnostic chip that can rapidly identify genetic root causes of specific heart defects.
A new study found that elderly men with higher IGF-1 bioactivity have a significantly lower mortality rate compared to those with low bioactivity. The researchers used a new method to measure IGF-1 function, which revealed the association between high circulating IGF-1 bioactivity and extended survival.
A new genomics tool identifies artificial vector sequences by clustering shared DNA regions, allowing for high sensitivity and specificity in detecting engineered pathogens. The tool's potential is being explored to combat malicious genetic engineering applications.
Researchers used bioassay-guided evolution to identify more efficient antibiotic-producing mutants in Escherichia coli, reconstituting the biosynthetic pathways of sugars to yield a new antibiotic. This approach opens doors for harnessing genetics to investigate polyketide synthases and biosynthetic engineering.
Researchers designed a new cyclen-based receptor that strongly binds the fluorescent dye pyranine under near-physiological conditions. The assay enhances the evaluation of developmental drug compounds' properties, improving the development of safer drugs.
Researchers evaluated rice varieties for their allelopathic potential, finding that certain parts of the plant can inhibit barnyardgrass growth. This study suggests the possibility of developing rice-based natural herbicides to improve weed control.
Researchers have isolated a potent antifungal compound from the common seaweed species Lobophora variegata, revealing an unusual chemical structure. This discovery presents new insights into ecological interactions between marine organisms and offers possibilities for biomedical applications.
Researchers have developed a highly sensitive automated test for detecting prions in cattle, sheep, deer, and elk, significantly improving the accuracy and speed of detection. The test, an immunological probe, uses novel antibodies to reveal and measure infectious abnormal prion protein.
A three-year study found no evidence of toxic substances from Pfiesteria in seafood. Researchers sampled edible tissues from various fish species and discovered that only menhaden were affected, with open sores being the primary cause.
E. Philip Horwitz developed resins that selectively remove radioisotopes from complex mixtures, improving monitoring of workers' exposure and ingestion of radioisotopes. His technology processes about 350,000 samples per year worldwide, with potential applications in countries monitoring Chernobyl effects.
Two newly identified metabolites of the gasoline additive MTBE have been found in human urine samples. These findings suggest that humans are exposed to MTBE and its byproducts through inhalation, and that further research is needed to understand their impact on human health.