Researchers successfully cloned three mule foals, including Idaho Gem, using increased calcium concentrations in the media. This breakthrough may aid understanding of human diseases, as equine cell activation and division rates can be accelerated by exposure to calcium.
Researchers successfully cloned mice from olfactory cell nuclei, demonstrating totipotent development and normal brain function. The study expands understanding of neuronal diversity and offers insights into reprogramming mature cells.
Researchers have sequenced a native centromere in rice, revealing active genes that defy the notion of non-coding DNA. The discovery provides insights into chromosome evolution and has significant implications for plant engineering.
Researchers at Texas A&M University have successfully cloned a white-tailed deer named Dewey, believed to be the first of its kind. The breakthrough achieved through fibroblast cell isolation, culture, freezing, and nuclear transfer may provide valuable tools for conserving endangered deer species.
A study on therapeutic cloning of hematopoietic stem cells showed promising results in generating compatible cells for long-term engraftment. Another study on transferring donor immunity across HLA barriers identified a safe and effective way to re-build immunity after bone marrow transplantation.
Temple researchers mapped out early embryo development and found that clones replicate the process entirely at this stage. However, cloned embryos bear characteristics of both an embryo and adult cell, leading to slow and incomplete development.
Researchers at Thomas Jefferson University and the University of Michigan have identified a gene defect behind a devastating muscle-wasting disease. The study found that a mutation in the Omi/HtrA2 protein causes neuronal cell death by impairing mitochondrial function.
Researchers from the University of Pennsylvania have successfully aggregated cloned mouse embryos, improving their survival rate to 8 percent. The technique involves combining two clones at an early embryonic stage, which helps compensate for genetic deficiencies and leads to correct temporal and spatial gene expression.
Researchers at Memorial Sloan Kettering Cancer Center have successfully differentiated stem cells into genetically matched dopamine neurons, mimicking normal brain cell development. The breakthrough could lead to new treatments for Parkinson's-like disease in humans.
The study identifies three novel genes EDG1, PAK2, and TRAC-1 that repress T-cell receptor signalling in T-cells. These genes were discovered using a retroviral approach that allowed researchers to screen for genes critical for immune regulation.
Researchers discover sea animals can spontaneously clone themselves, providing new insight into chordate evolution. The larvae of echinoderms form an outgrowth that pinches off and grows into a second, normal-looking larva, a process that was previously unrecognized.
Researchers at UNC School of Medicine have identified a novel enzyme that halts histone synthesis when no longer needed, preventing lethal cell damage. The discovery sheds light on the complex regulatory mechanisms governing histone mRNA expression.
Scientists at the Pittsburgh Development Center are working towards cloning nonhuman primates, overcoming fundamental molecular obstacles first reported in 2003. The goal is to generate at least 10 cloned nonhuman primates and produce identical offspring through embryo splitting for studying human diseases.
A study by NIH/NIEHS has identified a mouse gene linked to hydrocephalus, a common birth defect. The research team cloned the defective gene, which affects cerebrospinal fluid drainage, and found it causes classic symptoms of hydrocephalus in mice.
Scientists at Vanderbilt University Medical Center have identified a new compound that activates glucokinase, an enzyme that regulates blood sugar levels. The compound has shown promise in improving insulin secretion and glucose usage in animals with diabetes, paving the way for potential clinical trials.
Researchers at the University of Wisconsin-Madison have identified a gene that protects potatoes from late blight, a fungal pathogen responsible for the Irish potato famine. The discovery holds significant potential to save farmers hundreds of millions of dollars and benefit the environment by reducing toxic chemical applications.
Researchers sequenced 99.4% of gene-containing regions on chromosome 7 with high accuracy, revealing duplicated segments that may contribute to genetic diseases. The analysis also identified approximately 1,150 protein-coding genes, shedding light on the genetic basis of human disease.
A new study found that a drug can temporarily improve tactile acuity by reorganizing brain activity, offering potential treatments for learning disabilities and chronic pain. The treatment involves finger stimulation with a drug, which boosts the number of neurons involved in processing tactile information.
Scientists investigate rice genome for clues on seed dormancy, a key trait to fight preharvest sprouting. They develop populations segregating for dormancy and identify genetic attributes associated with heritability.
The European Society of Human Reproduction and Embryology's new chairman, Professor Arne Sunde, argues against a total ban on embryo-based research. He suggests that alternative stem cell sources, such as those derived from amniotic fluid or adult tissues, may become important for research and treatment in the future.
The European Society of Human Reproduction and Embryology (ESHRE) has reaffirmed its ban on human reproductive cloning due to significant practical and ethical risks. The organization believes that the generation of clones could infringe upon human dignity, increase genetic determinism, and restrict autonomy.
St. Jude researchers successfully cloned embryos from mouse medulloblastoma cells using a reprogrammed nucleus model, demonstrating the potential for epigenetic factors to cause tumors. The study provides valuable insights into the molecular basis of cancer and may lead to new therapies.
The research team successfully cloned a mule, marking the first time a hybrid animal has been cloned. The cloning process uses fetal cell culture established in 1998 at the University of Idaho and demonstrates potential for advancing understanding of human cancer.
Researchers have discovered that equine cloning can provide insights into human cancer causes, particularly in relation to calcium levels within cells. The study found that horses have lower intracellular calcium and slower cell activity rates compared to humans, which may contribute to their lower mortality rate from metastatic cancer.
The BP1 gene is found to be active in 57% of Caucasian women and 89% of African American women with breast cancer. Gene therapy targeting BP1 may help treat non-hereditary breast cancer, which accounts for 95% of cases.
Researchers found that cloned pig behavior is not identical to the original animal's behavior. Cloning increases variability associated with some traits, making it difficult to predict the behavior of cloned animals.
Scientists at Purdue University have cloned a gene that improves the digestibility of food for livestock and enhances the stress tolerance of plants. The study's findings have potential applications in breeding more productive and resilient crop varieties.
Scientists at the University of Pittsburgh Medical Center found that chromosomal problems exist within each individual cell, leading to developmental abnormalities. The study suggests that current techniques used for reproductive cloning do not work in nonhuman primates.
A recent study suggests that primate cloning is difficult to achieve, even for embryonic stem cells. The researcher proposes a ban on reproductive cloning, citing moral and social concerns. This approach may lead to alternative methods for medical research using embryonic stem cells.
A survey of 16,500 Europeans in 15 countries shows optimism in biotechnology increasing to levels seen in the early 1990s. Medical applications are broadly supported, while agricultural and food uses are met with skepticism. European attitudes on biotechnology have shifted since 1999, with improvements in some countries.
Scientists identified 10 genes that function similarly to the Oct4 gene, essential for embryonic development. Inefficiently expressed genes in somatic cell-derived clones may contribute to their failure to survive. The study aims to improve cloning efficiency and yield vital information about disease and cell development.
Researchers developed a method using bacteriophages to deliver vaccine components, offering advantages over traditional naked DNA vaccines. The technique has significant production and storage benefits, making it an attractive solution for addressing sudden vaccine demands.
U of MN researchers identified proteins FRGY2a and FRGY2b that disassemble nucleoli without other protein help. This discovery may lead to understanding normal cell development and human diseases.
Researchers at Northwestern University are using genome-wide mutagenesis to identify gene mutations that cause sex reversal in mice. The study aims to understand the function of mammalian genes and their role in gonad development, as well as infertility in humans.
USC researchers have successfully used gene therapy to prompt mouse cells to produce human collagen, a crucial step towards treating patients with dystrophic epidermolysis bullosa. This breakthrough could lead to the development of new treatments for this debilitating skin condition, which causes blisters and permanent scars.
The AAAS Top Ten Science Policy List for 2002 highlights concerns over new American security policies impacting scientific research. Human cloning, stem cell science, and sustainable development are among the top issues, with scientists facing a balancing act between global security and scientific progress.
Most Americans oppose scientists working on human cloning (76%) and favor government regulation of reproductive genetic technologies. The public draws clear distinctions between health and non-health related applications, with two-thirds approving of testing for serious diseases.
The EMBO World Programme fellowship scheme supports scientists from non-European countries to visit European laboratories for a six to nine month period. The program aims to foster collaborations and strengthen research between European and home countries.
The world's first cloned double 'knockout' pigs represent a major boost to xenotransplantation research, offering hope for resolving the organ shortage. Researchers predict human clinical trials for pig islet transplantation in patients with diabetes and kidney transplants could be imminent.
Researchers are studying the manatee virus to develop an approach to fighting cervical cancer in humans. The manatee immune system is being studied to gain a better understanding of diseases like HIV/AIDS.
Researchers have discovered a gene, Ian5, that appears to affect the function of the thymus and is linked to the development of type 1 diabetes in rats. The identification of this gene may also contribute to human type 1 diabetes and help researchers understand the underlying mechanisms of the disease.
The ACT EAB believes that this research represents an important milestone in demonstrating the feasibility of new therapies for tissue and organ repair. The board has established strict guidelines for human embryo research, including prohibiting culturing of human embryos in vitro for more than 14 days.
Researchers at Advanced Cell Technology successfully transplanted cloned tissues into animals without rejection. The study's findings suggest that nuclear transplantation could provide a limitless supply of immune-compatible cells and organs for regenerative therapies, tackling one of the major challenges in transplantation medicine.
Researchers at Boston Children's Hospital used therapeutic cloning to create functional tissue in cows, including heart, muscle, and kidney tissue. The cloned cells showed no rejection response, a promising development for treating diseases with stem cells.
Researchers analyzed cloned mouse embryos for Oct4 gene expression to evaluate genetic reprogramming. Most cumulus-cloned embryos failed to properly reprogram their Oct4 gene pattern, resulting in low developmental potential and viability.
Researchers at Penn's School of Veterinary Medicine found that a specific gene, Oct4, plays a crucial role in the viability of cloned embryos. Only 34% of embryonic cells correctly reprogrammed to express Oct4, and just 10% showed levels of expression conducive to further development.
Researchers at Rush University Medical Center have identified the signal that instructs stem/progenitor cells to become dopamine neurons, a key step in treating Parkinson's disease. By cloning and transplanting these specific cells, the team hopes to develop new treatments for Parkinson's, Alzheimer's, and other diseases.
Researchers at University of Georgia have developed a new method to sequence genomes, called Cot-based Cloning and Sequencing (CBCS), which reduces the number of clones required from 119 million to 15 million, saving $354 million in funding.
Human cloning has raised concerns about individual uniqueness and self-identity, but an expert argues that these are influenced by qualitative traits beyond genetics. Brock suggests that history, relationships, and personal experiences shape our sense of identity, making cloning less likely to undermine human potential.
Researchers discovered a gene, atrogin-1, that plays a critical role in muscle atrophy. This protein triggers excessive protein breakdown, leading to muscle loss in various conditions, including space-related muscle wasting.
Researchers successfully combined therapeutic cloning, embryonic stem cell differentiation, and gene therapy to treat a genetic immune disorder in mice. The study demonstrates the potential for nuclear transplantation therapy to correct genetic mutations and restore function in human patients.
Researchers from the Whitehead Institute for Biomedical Research have successfully cloned mouse embryos from mature B and T cell nuclei, demonstrating that fully differentiated adult cells can form clones. However, the process is extremely inefficient, and it is more likely that elusive adult stem cells are responsible for cloning.
Carl Picconatto, a chemist from Wisconsin, has been named a congressional fellow by the American Chemical Society to work in Rep. Connie Morella's office on science and technology issues. He previously interned at the National Academy of Sciences and holds degrees from Columbia University and the University of Notre Dame.
Recent research highlights the significance of sodium-calcium exchange in various physiological processes, including vision, secretion, and cardiac contractility. The study also explores its potential applications in cancer therapy and heart function.
A study published in Nature Genetics identified the T-box 22 gene as the cause of a rare form of cleft palate. The gene's mutation leads to catastrophic effects on protein production, resulting in the birth defect. The discovery may lead to prenatal therapeutic interventions for cleft palate.
A team of researchers led by Louis J. Ptacek identified a novel gene, mass1, responsible for audiogenic reflex epilepsy in the Frings mouse strain. The gene was found to be mutated in mice with spontaneous seizures triggered by loud noises.
Researchers at UC Davis successfully cloned the first calf using a skin cell from an adult cow, but unfortunately, the calf died just three days after birth. The cloning technique holds promise for improving meat and milk production, with ongoing research aiming to overcome existing challenges.
Researchers found that humans possess two activated copies of the IGF2R gene, which helps prevent fetal overgrowth and cancer susceptibility. This genetic difference may make human cloning less complicated than other animals.
Researchers discovered a link between plant hormone auxin and stress response, mediated by the BIG protein. The study also found that IP3 acts as a second messenger in plant cell signaling.
Scientists discovered that even seemingly normal-looking clones may have subtle aberrations in gene expression, which can affect development. The study found that mouse clones made from embryonic stem cells exhibited irregular gene expression, highlighting the potential risks of reproductive cloning.