A team of Canadian and American researchers has identified the role of SHP-1 in regulating blood glucose levels and insulin sensitivity. The study used genetically modified mice to demonstrate that SHP-1 inhibition can improve glucose metabolism at the liver and muscle levels, potentially leading to new treatments for type 2 diabetes.
Researchers at Ohio State University have genetically modified cassava plants to produce larger, starch-rich roots, which could help alleviate hunger in Africa. The modified plants were found to produce up to 2.6 times larger roots and a third more leaves than regular cassava plants.
A team of researchers has successfully frozen and preserved genetically enhanced pig embryos, enabling their transportation across the country and worldwide. The breakthrough procedure removes lipids from unfertilized eggs before fertilizing them with muscle cells containing modified genetic material.
Researchers have created genetically modified 'prosthetic' retinal cells that restore visual responses in mice with photoreceptor degeneration. The approach targets the cellular level and avoids complications associated with traditional methods, offering a potential breakthrough in treating complete blindness caused by inherited diseases.
Researchers have created genetically modified mosquitoes resistant to the Type 2 dengue fever virus, which infects 50 million people annually. The mosquitoes showed high levels of resistance and were able to reproduce, making them a promising tool for controlling mosquito-borne diseases.
UCI researchers found a compound, AF267B, reduces hallmark lesions and improves cognitive function in genetically modified mice. The compound mimics the effects of acetylcholine and binds to M1 receptors, preventing beta-amyloid production and accumulating tangles.
Researchers found that genetically engineered muscle-derived stem cells (MDSC-B4) improved cartilage repair in rats, with well-integrated repaired tissue at 8, 12, and 24 weeks after surgery. The study also showed that MDSC-B4 could differentiate into chondrogenic cells depending on the type of medium they grew in.
Scientists have successfully engineered lactic acid bacteria to produce a viricide that disables HIV, paving the way for potential use as a microbicide. The genetically modified bacteria will be tested in monkeys this summer, with human trials planned for three years.
Researchers created a modified form of troponin I to improve cardiac function in mice and damaged human heart cells. The protein helps the heart respond to stress by boosting performance during periods of hardship.
A study of 20 children with epilepsy found that 13 had a greater than 50 percent improvement and four were seizure-free after six months on the modified Atkins diet. The diet, which mimics ketosis, was better tolerated by children and easier to follow than the ketogenic diet.
A study found that chemical modification of Type II Collagen creates a self-antigen, leading to immune system activation in rheumatoid arthritis patients. The modification of this protein contributes significantly to the disease's progression.
Researchers found that genetically modified rats with high levels of leptin receptors didn't become obese, even on high-fat diets. This suggests that preventing the disappearance of leptin receptors may be key to controlling obesity.
Dr. Robbins' research focuses on understanding the cellular functions of the heart and identifying genes associated with heart disease. He has developed genetically modified laboratory models to study the connection between protein mutations and heart disease.
A new GM mosquito sexing technique allows for the quick identification of males, paving the way for releasing sterile males to control mosquito populations. This could lead to a significant reduction in malaria cases and population growth.
A study compared genetically modified Desirée potatoes with five conventional varieties, revealing a surprising range of variation in substance content. The analyses found that the genetically modified lines exhibited similar variation to the conventional varieties, except for higher inulin polysaccharide content.
A two-year study by researchers from Ohio State University and Mexico's Instituto Nacional de Ecologia found no evidence of genetically modified maize in southern Mexico. The study analyzed over 153,000 seeds from 870 maize plants in Oaxaca and found no transgenic material.
Researchers used a fluorescent marker to predict individual life spans of genetically engineered nematodes, revealing up to four-fold variation in lifespan based on stress levels. The study suggests chance metabolic processes dictate aging rates in genetically identical organisms raised in similar environments.
Researchers successfully treated a laboratory model of GM1 – gangliosidosis using genetically modified bone marrow cells that produce an enzyme breaking down excess GM1. The treatment restored the activity of degenerating brain cells, suggesting a potential cure for this neurodegenerative disease.
A study published in the Canadian Medical Association Journal found that levels of ischemia-modified albumin provided no useful information in predicting which patients with potential acute coronary syndrome would experience serious cardiac outcomes. The analysis suggests that prognosis may precede diagnosis in these cases.
A recent study found that genetically modified rice in China reduces pesticide use by 80% and increases crop yields by up to 9%. The research also indicates no significant impact on farmers' health. The study provides valuable information for developing countries considering genetically modified food crops.
A study published in Neuron reveals that inhibitory cues affect nerve fiber growth by activating proteins that repel or steer the axon. The findings identify possible targets within axons to block inhibitory signals, enabling damaged axons to regenerate and potentially restoring nerve function.
Researchers at St. Jude Children's Research Hospital have developed a technique to produce large numbers of genetically modified NK cells that can effectively target and eliminate leukemia cells. The new technology has the potential to be used as a treatment for leukemia patients undergoing hematopoietic cell transplantation.
Researchers found that UTI-causing E.coli strains matched genetically with bacteria from cows and are resistant to antibiotics. The discovery has major public health implications due to the practice of administering subtherapeutic antibiotic doses in animals.
Scientists have successfully germline-modified mice using stem cells, paving the way for experimental analyses. Researchers also shed light on the effects of osmolarity and glucose/phosphate levels on embryo development.
In two harvester ant populations, queens and workers from the same colonies are genetically very different, with only queens coming from pure species-specific lineages. The ants have committed to a hybrid workforce strategy, relying on interspecific hybrid workers for survival.
A study published in Nature Structural and Molecular Biology reveals that cellular modifications to tRNA enhance its ability to decode genetic information at the atomic level. The research supports Agris' Modified Wobble Hypothesis, suggesting that modified nucleosides enable tRNA to decode more than one DNA code.
A team of researchers led by Carnegie Mellon University's Danith Ly has developed a way to deliver promising genetic tools into living cells. The tools, called GPNAs, use modified PNAs with improved cell uptake properties and can target specific disease-causing proteins.
Scientists have created a genetically modified parasite to study the immune system's memory, which could aid in developing vaccines for Leishmania major, AIDS, and tuberculosis. Researchers found that central memory T cells remain primed to fight new infections even after initial infection has cleared.
Researchers at U-M used a technology called ubiquitin-mediated fluorescence complementation to study a cell-signaling mechanism. They discovered how ubiquitin modified protein Jun's function and location, and found that an E3 ligase binding enzyme called Itch played a key role in this process.
A novel vitamin E compound, alpha-TEA, has been found to effectively reduce primary tumor mass and prevent lung metastases in genetically identical mice. The compound also shows promise in blocking breast cancer cell proliferation and inducing apoptosis.
A genetically engineered listeria bacteria-based vaccine has shown promising results in targeting metastatic cancer cells, inducing a strong innate and acquired immune response. The vaccine, aiming to target pancreatic and ovarian cancers, could potentially be used to prevent recurrence after surgery and chemotherapy.
Scientists successfully eliminated leukemia in genetically modified mice by disrupting the BCL-2 protein. The study provides strong support for a new paradigm of cancer treatment involving targeted apoptosis regulation.
Researchers produced genetically modified linseed plants that accumulate significant levels of very long chain poly-unsaturated fatty acids (PUFA) in seed, improving human nutrition. The production of these oils in plants may reduce unsustainable pressures on fisheries and provide a sustainable alternative for consumers.
A genetically modified bacterium, Lactococcus, has been engineered to produce a therapeutic protein that protects the epithelium and heals intestinal tissues. The bacteria shows great promise in treating both acute and chronic intestinal inflammation, including Crohn's disease.
Researchers at UCSD developed genetically modified mice with superior endurance capabilities by deleting the HIF-1 gene, which enables aerobic energy production. These 'super mice' can run and swim longer than normal counterparts but exhibit muscle damage after prolonged exercise, highlighting a double-edged effect.
Benign paroxysmal positional vertigo (BPPV) is an inner ear problem causing spinning or whirling sensations when moving the head. A study found that performing modified Epley's and Semont maneuvers at home can lead to significant symptom relief for 95% of participants.
A study found that genetically modified mice lacking SAP gene develop normal immune functions despite pristane exposure, which typically induces lupus-like symptoms. The researchers suggest targeting SAP for treatment may be an ideal approach to developing new drug treatments for autoimmune diseases.
Researchers solved the puzzle of the molecular structure of the protective antigen protein and CMG2 bound together, providing clearer targets for shutting down the anthrax toxin's entry into cells. This detailed image also points to a potential new tumor treatment using a genetically modified anthrax toxin.
A study found that targeting the Pak1-DLC1 interaction can prevent breast cancer growth. The researchers discovered that when DLC1 is modified, it interferes with cell death signals, allowing cancer cells to survive and multiply.
Researchers genetically modified mice to lack the CT or PEMT pathways, resulting in significant reductions of lipoproteins and homocysteine levels. This suggests pharmacological inhibition of PC manufacture in the liver as a potential approach to lower LDL cholesterol and homocysteine levels.
Researchers at Thomas Jefferson University have made significant progress in developing a new vaccine against malignant melanoma, a potentially deadly skin cancer. The vaccine showed promise in a phase I-II study, with 8 of 10 patients developing positive responses to their own tumor cells that were chemically modified.
Researchers have developed a new vaccine strategy using live, crippled Salmonella bacteria that stimulate immunity to multiple pathogens. The vaccine protected mice 100% against lethal doses of both S. typhimurium and Listeria monocytogenes.
Researchers at the University of Pennsylvania have successfully designed better bacteria killers by modifying arylamide-based polymers inspired by frog skin. The modified polymers can disrupt bacterial cell membranes without harming human cells, making them a promising new approach to combat antibiotic resistance.
Researchers found that early exposure to environmental toxins reprograms the uterus to promote tumor growth in genetically susceptible rats. This new model of gene-environment interaction may explain why some people develop cancer while others don't, especially considering inherited BRCA1 mutations.
A new report from Ohio State University recommends prioritizing the risks and benefits of genetically engineered organisms (GEOs) before release. The panel suggests developing regulations based on scientific findings and implementing measures to prevent unwanted side effects.
Purdue scientists Rick Howard and colleagues discovered that genetically modified fish have a reproductive advantage, but their offspring are less likely to survive. This paradox could lead to a population dwindling in size and potentially disappearing entirely if not managed carefully.
A study suggests that genetic enhancement can increase muscle mass and strength in rats, which could benefit elite athletes, patients with muscle wasting, and elderly individuals. The research also highlights the need for regulatory bodies to distinguish between allowed and banned endurance enhancement practices.
A modified surgical procedure, EUPF surgery, has shown an 82% success rate in treating obstructive sleep apnea by reducing snoring and improving oxygen levels. Patients who underwent the procedure reported significant improvements in quality of life.
Researchers placed modified radio transmitter modules within a high-rise before demolition and found that 10 of the 14 modules continued broadcasting after the structure was destroyed. The study aims to develop technology allowing emergency personnel to locate survivors by locking onto cell phone or radio signals in collapsed buildings.
Researchers used genetically modified yeast to pinpoint mutations responsible for antibiotic resistance in Pneumocystis jirovecii, a pathogen causing severe pneumonia. The study reveals potential targets for designing new drugs to prevent resistance.
Scientists at the Hebrew University and Max Planck Institute have discovered a gene-based approach to suppressing stress-induced reactions. They developed an 'antisense' agent that neutralizes the production of modified proteins, preventing extreme fright or immobilizing shock reactions associated with traumatic memories.
Researchers created a modified poliovirus that targets and destroys cancer cells in the brain, but spares normal brain tissue. The virus uses a rhinovirus genetic element to trigger gene expression in cancer cells, but malfunctions in normal neurons due to lack of co-factors.
The University of Minnesota has been awarded a major NIH contract to bring new cellular therapies to human clinical trials. The project will focus on developing biological therapies using adult stem cells, umbilical cord blood, tumor vaccines, and genetically modified immune system cells.
Researchers successfully used gene-modified dendritic cells to induce apoptosis in collagen-specific T cells, reducing arthritis incidence and severity. Additionally, stem cell factor was found to drive hepatocyte proliferation after liver resection, while VLA-1 expression is crucial for T cell memory of previously encountered antigens.
A study by Purdue University found that consumers are willing to pay a premium for genetically modified foods that provide direct benefits, such as golden rice with enhanced vitamin A content. The research also identified a technique called 'cheap talk' that can help reduce consumer bias in marketing surveys.
Despite 80% of processed American food containing genetically modified ingredients, only 26% of Americans believe they have ever eaten GM foods. A new study found that self-reported and objective knowledge of biotechnology remains low in the US, but opinions on GM foods are open to change.
Researchers have developed a modified smallpox vaccine that is expected to be identical in effectiveness to the current vaccine but treatable for rare complications. The new vaccine will use genes to make the virus susceptible to common drugs, allowing doctors to effectively treat severe reactions.
A team of scientists at GlycoFi, Inc. and Dartmouth College reports the successful production of a human protein with complex glycosylation in genetically modified yeast. The achievement enables the generation of glycoprotein libraries for elucidating specific structure-function relationships and identifying efficacious molecules.
The FDA has approved a safety trial for the second component of a three-part HIV vaccine developed at St. Jude Children's Research Hospital. The vaccine aims to overcome viral diversity with a multi-envelope approach, and includes three components: DNA, genetically modified vaccinia virus, and purified HIV envelope protein.
A study found that Alzheimer's disease alters a protein called calbindin in brain cells, leading to cognitive deficits. Calbindin levels in granule cells were strongly correlated with cognitive decline in genetically engineered mice and human patients.