Caspase inhibitors may trigger necrotic cell death, despite preventing apoptosis, according to a new study. Researchers found that blocking apoptosis can lead to alternative necrotic cell death in cultured hepatocytes and mouse livers.
Recent studies have shown variable levels of radioactive contamination in fish, but population-level effects have not been observed. The long-term fate of the contamination remains unknown, with further research needed to understand its effects on marine ecosystems.
Researchers found that exercise and methamphetamine can re-establish circadian rhythmicity in animals, suggesting a potential new way to treat addiction. This approach associates drug usage with a non-harmful stimulus, leveraging brain plasticity to rewiring the brain's circuitry.
The scientific community has established criteria for identifying endocrine disruptors, which will inform regulatory decisions on substances affecting human health. The principles focus on substance effects on the endocrine system and adverse health outcomes.
The BfR has updated its joint research strategy to focus on application-safe and environmentally friendly nanomaterials development and use. The new approach aims to ensure sustainable material use across the entire life cycle, from production to disposal.
A study found that multiple pesticides within colonies closely correlate with colony death, including some 'bee-safe' fungicides. The researchers assessed 91 colonies and found that the number of different compounds was highly predictive of colony death.
Researchers developed a lentiviral vector-based gene therapy approach to deliver normal copies of the alpha-iduronidase gene to HSCs, indicating safety and efficacy in mice. The study sets the stage for a clinical trial to determine if MPS I patients can be successfully treated with this approach.
Lab tests reveal e-cigarette vapor is non-toxic to human lung cells, even at unrealistically high doses. Cigarette smoke proves cytotoxic, with lung cells showing low levels of toxicity only after equivalent daily exposure in just one hour.
Lab tests reveal e-cigarette vapor does not cause oxidative stress and cell death in lung epithelial cells, unlike cigarette smoke. Researchers developed a standardized method to compare the effects of conventional cigarette smoke and e-cigarette vapor on lung cells.
A recent study by British American Tobacco found that e-cigarette vapour contains toxicant levels on average 95% lower than conventional cigarette smoke. The study measured 142 compounds in e-cigarette vapour and found substantial reductions in toxicant groups, with most cigarette smoke toxicants undetectable.
Researchers found that increased cell membrane fluidity enhances auranofin's ability to induce DNA damage and cellular oxidation in ovarian cancer cells. This could lead to improved treatment outcomes by increasing the drug's effectiveness against cancer cells with fluid membranes.
A study led by Duke University researchers found that blocking the production of a key receptor can reduce the toxicity of cigarette smoke on zebrafish embryos. The receptors were found to play a role in early embryonic development, particularly the formation of bone, heart and muscle tissues.
Researchers have successfully created healthy baby mice by injecting sperm into embryos developed from non-egg cells, achieving a success rate of up to 24 per cent. This breakthrough challenges the long-held dogma that only egg cells can support embryonic development.
A new study by John Jay College's PRISM program reveals that undergraduate research experiences lead to nearly tripled graduation rates among science majors and a significant increase in students pursuing graduate degrees and STEM careers. The program has also improved student pipeline to post-graduate professional careers in STEM fields.
This special issue highlights research on child health, maternal health, sedentary lifestyle, and healthcare systems in 22 countries. The studies investigate various topics such as the impact of globalization, cultural influences, and public health challenges.
A new study suggests that increased sea temperatures can enhance and accelerate radiation-induced DNA effects in marine mussels. The research found that DNA damage appeared earlier at higher temperatures compared to lower temperatures, potentially compromising the mussels' ability to defend against genotoxic insult.
A new study by University of California - Santa Cruz researchers found that early exposure to high levels of manganese causes lasting attention deficits and impairments in rats. The findings support concerns about the adverse effects of excess manganese on children's development.
A new study by University of Toronto researchers found that increased Gαq/11 signaling inhibits the anabolic response to PTH and exercise in mice. This suggests that suppressing Gαq/11 signaling could be a promising target for treating bone loss.
Researchers found a significant number of thyroid tumors carry a mutation in the EZH1 gene, leading to increased cell proliferation. The 'two-hit model' suggests that the first mutation increases tumor disposition and the second triggers disease progression.
A $4 million NIH grant will enhance partnerships between RIT/NTID and UR, providing postdoctoral research and teaching experiences for deaf students. The Rochester Postdoc Partnership (RPP) aims to increase diversity in biomedical sciences by creating mentored teaching opportunities.
A new clinical study found that exclusive e-cigarette use significantly reduces exposure to harmful chemicals similar to complete smoking cessation. The study measured biomarkers in urine, blood, and exhaled breath, revealing reductions of over 75% in carbon monoxide levels and over 80% in volatile organic compounds.
A Michigan State University researcher has discovered that a synthetic food additive, tert-butylhydroquinone (tBHQ), may be causing an increase in food allergies. The research found that tBHQ triggers the release of proteins that can trigger allergies to common foods like nuts, milk, and eggs.
Researchers have found increased expression of galectin-3 protein in pulmonary hypertension, which causes unhealthy remodeling and constriction of lung blood vessels. They also discovered that a drug already tested for liver fibrosis can block or reverse early disease progression, offering new hope for treatment.
A new study by University of Guelph researchers found that exposure to diluted bitumen impairs swimming ability and changes heart structures in young salmon. The Trans Mountain pipeline expansion project is expected to increase oil sands products reaching the Pacific coast.
A team of researchers at KIT developed a 3D model for prostate cancer research using cryogels, which can replicate natural processes and examine tumor development. The model has been recognized as the top story on Prostate Cell News.
Researchers found that neurodegeneration in Parkinson's disease stems from endoplasmic reticulum stress rather than mitochondrial failure. ER stress prevents neurons from producing vital proteins, leading to their death. By blocking ER stress, scientists were able to prevent neurodegeneration in mutant flies.
Researchers found that wearable biosensors can detect opioid use by tracking physical changes such as decreased movement and rising skin temperature. The devices may be useful for monitoring developing opioid tolerance and detecting relapse in rehab patients.
Research highlights widespread plastic contamination in oceans, with effects on marine life and human health, prompting policy changes such as bans on microplastics and single-use plastics.
Research suggests that an extract from hops could help fend off breast cancer by boosting the cells' detoxification pathway, a process linked to a lower risk of developing breast cancer. The study found that one particular compound, 6-PN, had anti-cancer effects and may be a potential natural alternative to hormone replacement therapy.
Researchers have identified a small peptide from a bacterium that efficiently binds excess copper from liver cells, offering a potential treatment for Wilson disease. The molecule, methanobactin, was shown to reverse acute stages of the disease and prevent organ failure.
A study by UNC researchers found that vaping e-cigarettes alters dozens of genes essential for upper airway immune defense, similar to cigarette smoking. This discovery suggests that inhaling flavored liquids in e-cigarettes has consequences on epithelial cell gene expression, potentially increasing the risk of respiratory problems.
David W. Schindler, renowned limnologist, receives the SETAC Rachel Carson Award for his work on laundry detergent phosphates and eutrophication. His research has led to policy changes worldwide.
Researchers discover new function of STAT1 in activating natural killer cells to eliminate tumor cells. Without this newly identified function, NK cells are still effective in eliminating tumors.
The Environmental Genomics course explores the relationship between genetics and environment, focusing on phenotypic plasticity in organisms like Daphnia pulex. The course aims to provide training in experimental approaches and computational models for studying the effects of environmental challenges on genetics.
The review assesses the fibrotic potential of various nanomaterials, including multi-walled carbon nanotubes, and recommends in vitro approaches to predict lung fibrosis development. This scientific study aims to advance non-animal methods for studying nanomaterial effects on human health.
Researchers found that low temperatures trigger genes involved in biofilm formation, toxin production, and cold adaptation in Vibrio cholerae. Expression of virulence factors is reduced at low temperatures, suggesting a link to environmental lifecycle.
A novel therapeutic approach has been discovered using a breast cancer drug to treat acute myeloid leukemia (AML) patients with FLT3 mutations. The compound blocks the production of the FLT3 gene and subsequently downregulates its activity, leading to the death of cancer cells.
International research found a direct link between continued marijuana use during pregnancy and pre-term birth, with 6% of pre-term births potentially preventable. Marijuana use was independently associated with a five-fold increase in pre-term birth risk, regardless of other risk factors.
A new UCLA study finds no evidence to link the anti-nausea drug Zofran to an increased risk of birth defects. Women with extreme morning sickness who took Zofran reported fewer miscarriages and higher live birth rates compared to those without the medication.
Experts gathered at EPA headquarters to discuss design of in vitro system to assess nanomaterial toxicity, with PETA International Science Consortium funding its development. The report summarizes workshop discussions and recommends aerosol generation and exposure tools.
University of Bonn researchers have discovered a new method to measure the activity of energy-consuming brown fat cells in humans and mice. They found that microRNA-92a can be used as an indirect measure of brown fat cell activity, with a small blood sample sufficient for analysis.
Scientists propose aerosol generation and exposure tools to predict nanomaterial toxicity in human lungs. These non-animal tools use human lung cells grown in a petri dish, reducing the need for animal testing.
Researchers found that benzyl butyl phthalate (BBP) causes larger lipid droplet accumulation in cells, potentially leading to obesity. The study's results suggest a possible link between BBP exposure and adipogenesis, a process contributing to fat cell development.
The Institute for In Vitro Sciences (IIVS) hosted a unique 2.5-day workshop on in vitro exposure systems and dosimetry assessment tools for inhaled tobacco products. Attendees gained a deeper understanding of the issues involving aerosol exposure to cells and tissues in culture.
Veronika Sexl will focus on finding new ways to inhibit the kinase-independent function of CDK6, a key enzyme in tumor development. The €2.5 million ERC grant aims to develop targeted cancer drugs.
Researchers at Marshall University have found that blocking small cell lung cancer tumors' blood supply can delay their growth and regrowth after treatment. Synthetic molecules like MG624 show promise in delaying cancer relapse and improving patient outcomes.
A recent study found that six commonly used insecticides kill amphibian parasites, potentially decreasing the number of parasites an amphibian must defend against. The study also showed population-specific differences in pesticide resistance, highlighting the importance of considering multiple populations when assessing toxicity.
Researchers at the University of Leicester have identified a new biochemical process that controls lung function and contraction during asthma. Disrupting this process can prevent airway narrowing and maintain normal lung function.
Research finds that botulism in waterbirds is spread by an invasive species of freshwater snail carrying Clostridium botulinum, which thrives in polluted wetlands. Global warming is expected to exacerbate outbreaks due to increased temperatures and drought.
Researchers have identified promising biomarkers to monitor immunosuppressive drug therapy in organ transplant recipients, with the potential for individualized treatment to reduce rejection and minimize side effects. A panel of experts recommends a preliminary set of tests for use in biomarker-based immunosuppressive drug management.
In vitro tests of Vype ePen e-cigarette vapor revealed no activation of cell stress responses, DNA damage, or cellular transformation. In contrast, cigarette smoke induced significant DNA damage and promoted tumour formation in human lung cells.
A team of scientists at the University of Bonn discovered a switch that can convert unwanted white fat cells into energy-burning brown cells by blocking Gq proteins. This breakthrough has significant implications for obesity treatment, as it may lead to the development of pharmaceutical products that target this pathway.
A new device, IS2B, developed by Arizona State University researchers accurately measures chemical contamination in water and sediment. The tool assesses the bioavailability of hazardous chemicals, which is essential for understanding health risks from pollution.
A study published in Annals of Emergency Medicine found ketamine to be an effective and safe sedation agent for patients with acute behavioral disturbances who do not respond to traditional methods. Only 10% of patients treated with ketamine required additional sedation or failed to achieve sedation within a set time frame.
Researchers found that carbon nanomaterials, like C60 molecules, can enter immune cell membranes without triggering a response. This passive entry allows the materials to escape and evade the cell's disposal mechanisms.
Zebrafish exposed to atrazine during embryonic development exhibited reproductive problems, including swollen abdomens and breeding complications, in their young. The study also found physical deformations, such as decreased head length to body length ratio, and increased progesterone levels in affected parents.
A recent study from Sam Houston State University highlights the difficulties in detecting synthetic cathinones in biological samples due to their thermal degradation and instability. The researchers emphasize the need for a systematic approach to understanding the structural facets of these compounds to improve detection methods.
Researchers found that NK cells produce VEGF-A to promote tumor growth when STAT5 is inhibited. This discovery challenges the use of STAT5 inhibitors in cancer treatment, which could have unintended consequences for patients.
Researchers have developed a searchable database of 10,000 chemicals with available safety data, predicting the toxicity of similar untested substances. The 'chemical landscape' map allows for safer product development and reduces animal testing.
Scientists at Johns Hopkins Bloomberg School of Public Health have developed tiny 'mini-brains' made up of human brain cells, which can be replicated on a large scale. These mini-brains can help study neurological diseases like Alzheimer's, Parkinson's, and autism, reducing the need for animal testing.