Researchers have created mouse embryonic stem cells that can be transplanted without rejection due to genetic matching with the recipient's immune system. The cells were generated from unfertilized eggs through a series of chemical treatments and identified using genetic typing.
Invitrogen introduced its new free online scientific resource collection, iGene, allowing researchers to search for experimental reagents by gene or protein. The company also launched the Premo comeleon calcium sensor, which uses fluorescent protein color emission to detect calcium levels in live cells.
A simpler, cheaper method for cell fusion has been developed by Chang Lu at Purdue University, enabling researchers to fuse cells with greater control and precision. The new technology uses constant DC voltage and could lead to breakthroughs in stem cell research, disease antibody production, and cloning.
P/acman allows researchers to study large genes and gene complexes in Drosophila, overcoming a key limitation of currently available methods. This new technique has far-reaching promise for understanding the structure and function of virtually all fly genes.
A team of researchers at the University of Illinois has successfully synthesized an antibiotic called fosfomycin in a non-native host, paving the way for new treatments against bacterial infections. The development is significant as it addresses the rising threat of antibiotic resistance.
Massachusetts General Hospital researchers have discovered a master cardiac stem cell capable of differentiating into three types of heart cells. This finding offers new prospects for drug discovery and genetically based models of human disease, as well as a novel strategy for the regeneration of cardiac muscle and associated structures.
The Women's Bioethics Project has launched a new podcast series titled 'The Scientist & the Ethicist', which explores topical ethical issues related to reproductive and genetic technologies. The podcast features conversations with prominent bioethicists discussing topics such as designer babies, genetic engineering, and cloning.
Researchers have successfully cloned mice using fully differentiated blood cells, disproving the need for adult stem cells in the process. The study found that these cells were more efficient than stem cells or progenitor cells, paving the way for new approaches to animal cloning.
Researchers at the Salk Institute and UCLA developed a high-density microarray technique to capture genome-wide DNA methylation patterns in Arabidopsis, a plant species. This breakthrough has significant implications for understanding human genome analysis, stem cell biology, and therapeutic cloning.
Researchers have found that human embryonic stem cells exhibit a distinct pattern of DNA methylation, differing from adult cells and cancer cells. This discovery may hinder the success of therapeutic cloning by requiring epigenetic reprogramming of adult cells.
Antarctic fish use the exocrine pancreas and stomach to produce antifreeze glycoproteins, contradicting earlier assumptions about liver production. The discovery sheds new light on teleost freeze-avoidance physiology.
Dr. Paul Root Wolpe argues that scientists have a unique responsibility to advocate for their research and carefully consider ethical implications. By doing so, they can advance their own work and improve the public's understanding of scientific breakthroughs.
Researchers discover a gene, dubbed fat free, that disrupts lipid absorption in zebrafish and reveals potential targets for intervention. The study provides new insights into lipid metabolism and opens the way for screening drugs to rescue defective cholesterol processing.
Scientists have created pigs that produce heart-healthy omega-3 fatty acids by transferring a gene called fat-1 to pig cells. This breakthrough could lead to better understanding of cardiovascular function in both pigs and humans, as well as potential benefits for human health and animal welfare.
Researchers at UCSD have found that disease-causing Strep bacteria release an enzyme that degrades neutrophil DNA nets, allowing them to escape the immune system and spread in body tissues. This discovery could lead to new treatments by inhibiting this enzyme, making it easier for the immune system to clear the pathogen.
Researchers at Whitehead Institute have concluded that cloned and fertilization-derived stem cells are indistinguishable, with similar gene-expression profiles. This breakthrough paves the way for individualized cellular therapies for treating certain disorders.
Researchers characterize 161 unique RNA genes in introns of protein-coding genes, revealing new insights into developmental processes and regulatory mechanisms in nematodes.
Scientists have discovered male water fleas in a lab, revealing that pesticides can induce sex change and affect populations of fish and other organisms. The finding highlights the importance of considering non-target species in environmental monitoring and management.
Scientists have successfully developed a proof-of-concept for Altered Nuclear Transfer (ANT), an alternative to somatic cell nuclear transfer (SCNT) that enables the creation of genetically altered embryos without implantation. The method uses RNA interference to disable genes in donor nuclei, producing stem cells with disabled Cdx2 fu...
Researchers have made significant progress in understanding stem cells and their role in reproduction and the nervous system. Studies suggest that therapeutic cloning may become unnecessary once body cells can be re-programmed into stem cells.
Researchers have made history by cloning human embryos using matured lab-grown eggs and non-autologous nuclear transfer. Eighteen out of 25 in vitro matured oocytes survived the process, with 11 developing into pronuclei.
Researchers at Johns Hopkins Medicine have successfully grown human stem cells in a lab setting that mirrors the natural developmental process of blood cells. The study provides unprecedented insight into how stem cells specialize into blood cells, shedding light on the mechanisms behind leukemia and lymphoma.
Researchers have successfully cloned mice using direct nuclear transfer from terminally differentiated natural killer T cells. The cloned pups and their placentas exhibit rearranged T cell receptor genomic loci specific to NKT cells, demonstrating that fully differentiated cell nuclei can support embryo and placenta development.
A study found that parthenogenetic Bynoe's geckos, a hybrid species, can reproduce without sex and outperform their sexual counterparts in endurance tests. The geckos' 'clonal' way of reproducing allows them to be genetically identical to their mother, and research suggests they are super tough and robust.
Dartmouth Medical School researchers have identified the enzymatic activity of Aprataxin, a gene associated with an early onset hereditary neurological disorder. This discovery may lead to improved treatment strategies for ataxia-oculomotor apraxia 1 by targeting specific protein substrates.
A new report by the Genetics & Public Policy Center reveals a polarized debate over cloning policies, with high awareness but limited understanding of its scientific feasibility. The report highlights the need for sound science policy and contributes to public understanding of the complex ethical and policy issues surrounding cloning.
Stem cells can be made specific to patients regardless of age or sex, showing promise for treating devastating diseases and injuries. The research yields patient-specific cellular models of human disease, paving the way for more precise study and potential cure.
A new DNA sequencing method called pulsed multiline excitation (PME) uses four lasers to eliminate cross-talk between dyes, resulting in more precise sequence information. This technology could lower costs for high-throughput genetic scans and lead to rapid and inexpensive genome sequencing.
Scientists have made a significant breakthrough in understanding pemphigus, a deadly skin blistering disease. Researchers engineered antibodies that reproduce the disease in vitro and in mice, offering a new opportunity for targeted therapy development.
A new lab technique has identified high levels of pathogens in a hospital therapy pool, with
A recent study by Washington University researchers used a molecular survey to detect Mycobacterium avium in the lungs of nine lifeguards who developed hypersensitivity pneumonitis after exposure to pool water. The bacterium, known for its resistance to disinfection, was found at high levels in air samples taken near the pool.
Professor Magloire has made significant contributions to odontoblast biology, including characterizing replacement populations and developing novel culture systems. His research has shown the role of TGFβ and new gene profiles involved in odontoblast differentiation and mechanosensitivity.
Researchers have identified a previously unknown sequence on the human Y chromosome, containing eight potentially active genes. This discovery suggests that segmental duplications in pericentromeric regions may be underrepresented in current genome sequences.
Researchers at Temple University have discovered a new family of genes that could serve as a potential cancer marker. One form of the gene, NSP5a3a, is highly expressed in some tumor cell lines and may be useful for developing diagnostic tests and cancer therapies.
The project aims to present evidence for the existence of ultra-psychrophiles in sub-freezing environments like Alaskan permafrost. The research has broader impacts, including more reliable climate predictions and development of efficient biocatalysts for below freezing temperatures.
Scientists have successfully cloned primates up to the blastocyst stage, a developmental milestone for embryonic stem cell research and potential treatments for diseases such as diabetes and Parkinson's. The breakthrough could pave the way for deriving human embryonic stem cells from nonhuman primate templates.
A chamber opera project, 'Hidden States,' explores parallels between alchemy and contemporary genetic science, featuring a sequence of five monologues on sequencing and cloning. The project has been funded by the Wellcome Trust's Engaging Science Programme to raise awareness of biomedical research.
Dr. Rikke will receive the prestigious award for his work in mapping and cloning genes in mice that modulate neurosensitivity to ethanol and general anesthetics. The award is presented annually by the Gerontological Society of America (GSA) to recognize outstanding research in gerontology.
Leading researchers, including Gerald Schatten, explore the potential of stem cells from therapeutic cloning for treating various diseases. However, concerns over safety, efficacy, and ethical implications remain a topic of debate.
Researchers discovered that HER-2 protein receptors can travel into the nucleus and turn on genes associated with different carcinogenesis pathways, including COX-2. This finding may change treatment strategies and open up new avenues of research.
Researchers at McGill University have made a groundbreaking discovery that patients can be infected with more than one type of HIV, which poses significant challenges for treatment and management. The study's findings, published in the August issue of AIDS, suggest that existing drug cocktails may need to be tailored accordingly.
Researchers successfully cloned mice from malignant cancer cells using nuclear transfer. The study reveals that the epigenetic elements of cancer can be reversed, whereas genetic mutations are not.
The American Society of Clinical Oncology (ASCO) has released a new technology assessment recommending against the use of chemotherapy sensitivity and resistance assays. The assessment found limitations in the literature, including small sample sizes and low yield of assays, cast doubt on their effectiveness in determining treatment.
Researchers successfully coaxed human embryonic stem cells into antigen presenting cells that educate the immune system. These cells can control T cell responses, potentially reducing rejection rates for transplanted tissues.
International bodies have struggled to agree on separating stem-cell research from reproductive cloning laws. Dr. Carol A Tauer argues that each issue should be argued on its own merits. Scientists shy away from controversial areas due to unclear funding policies, and the EU needs to break its stalemate for progress.
Researchers at Seoul National University successfully produced genetically identical stem cells through somatic cell nuclear transfer (SCNT). The breakthrough holds promise for treating a large number of currently untreatable conditions, including inherited diseases.
Researchers found significantly impaired development in cloned embryos, making reproductive cloning unsafe for humans. The study suggests various factors, including fertility medications and in vitro culture conditions, may contribute to abnormalities.
A study reveals that 97% of infertile couples and 80% of the general population believe PGD should be permitted for detecting genetic diseases. The majority also oppose reproductive cloning, with only 7% in favour. Germans demand change in German Embryo Protection Law to allow PGD.
Germany's restrictive laws on human reproduction have roots in the Nazi era, where doctors and scientists were motivated by racial ideology and conformity. Understanding this history is crucial for making informed decisions about reproductive medicine today.
Researchers have identified a key antigen underlying Crohn disease, bacterial flagellin, which triggers an immune response. Studies found high reactivity against specific flagellins in CD patients, but not in controls or ulcerative colitis patients, providing new leads for causal antigens.
Campbell's groundbreaking research on bacteriophage lambda paved the way for studies on site-specific recombination and genome manipulation. His work has significantly advanced our understanding of microbial population dynamics and genome evolution.
The UI Hematopoietic Stem Cell Bank provides cord blood stem cells for advancing gene therapy and treating conditions like Parkinson's disease. Nearly 20 mothers have donated their child's umbilical cord blood, supporting scientific and medical advances.
U of T researchers identify gene responsible for protein malfunction in Crohn's patients, enabling diagnostic test and potential new treatments. The findings provide valuable insights into chronic inflammation and its impact on the disease.
A new transcript-based cloning technique enables scientists to identify specific genes in a matter of months, reducing the process from years. The technique was used to isolate and identify a gene in Medicago truncatula that plays a crucial role in nitrogen fixation.
Researchers are cloning mosquito genes to understand the hormone-controlled mechanism of diuresis, a fast process by which mosquitoes excrete waste. This study aims to develop new, selective insecticides targeting the hormone receptor, potentially controlling vector-borne diseases like dengue fever.
Researchers at the University of California - Davis have cloned the VRN2 gene in wheat, which controls vernalization and plays a crucial role in the crop's adaptation to different environments. The study provides valuable insights into breeding strategies for improving wheat varieties through manipulation of flowering times.
The study, published in Pharmacological Reviews, reveals that activation of certain melanocortin receptors can modulate the inflammatory process, reducing major molecules involved. This discovery has implications for treating localized and systemic inflammatory disorders, including organ transplantation and chronic inflammatory diseases.
Most cloned embryos are unable to reprogram their genes and develop normally, behaving like hybrids instead. Dr. Keith Latham's research highlights the challenges in cloning success.
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 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.