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DNA For example, in transcription, when a cell uses the information in a gene, the sequence is copied into a complementary RNA sequence through the attraction between the and the correct RNA nucleotides. Usually, this RNA copy is then used to make a matching protein sequence in a process called translation, which depen...
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DNA 5% of the human genome consists of protein-coding exons, with over 50% of human consisting of non-coding repetitive sequences. The reasons for the presence of so much noncoding in eukaryotic genomes and the extraordinary differences in genome size, or "C-value", among species, represent a long-standing puzzle known...
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DNA The genetic code consists of three-letter 'words' called "codons" formed from a sequence of three nucleotides (e.g. ACT, CAG, TTT). In transcription, the codons of a gene are copied into messenger RNA by RNA polymerase. This RNA copy is then decoded by a ribosome that reads the RNA sequence by base-pairing the mess...
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DNA Naked extracellular (eDNA), most of it released by cell death, is nearly ubiquitous in the environment. Its concentration in soil may be as high as 2 μg/L, and its concentration in natural aquatic environments may be as high at 88 μg/L. Various possible functions have been proposed for eDNA: it may be involved in h...
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DNA Within chromosomes, is held in complexes with structural proteins. These proteins organize the into a compact structure called chromatin. In eukaryotes, this structure involves binding to a complex of small basic proteins called histones, while in prokaryotes multiple types of proteins are involved. The histones fo...
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DNA These binding proteins seem to stabilize single-stranded and protect it from forming stem-loops or being degraded by nucleases. In contrast, other proteins have evolved to bind to particular sequences. The most intensively studied of these are the various transcription factors, which are proteins that regulate tran...
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DNA Nucleases are enzymes that cut strands by catalyzing the hydrolysis of the phosphodiester bonds. Nucleases that hydrolyse nucleotides from the ends of strands are called exonucleases, while endonucleases cut within strands. The most frequently used nucleases in molecular biology are the restriction endonucleases, w...
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DNA Topoisomerases are required for many processes involving DNA, such as replication and transcription. Helicases are proteins that are a type of molecular motor. They use the chemical energy in nucleoside triphosphates, predominantly adenosine triphosphate (ATP), to break hydrogen bonds between bases and unwind the d...
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DNA Here, the polymerase recognizes the occasional mistakes in the synthesis reaction by the lack of base pairing between the mismatched nucleotides. If a mismatch is detected, a 3′ to 5′ exonuclease activity is activated and the incorrect base removed. In most organisms, polymerases function in a large complex called ...
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DNA As with human DNA-dependent polymerases, RNA polymerase II, the enzyme that transcribes most of the genes in the human genome, operates as part of a large protein complex with multiple regulatory and accessory subunits. A helix usually does not interact with other segments of DNA, and in human cells, the different ...
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DNA The first step in recombination is a double-stranded break caused by either an endonuclease or damage to the DNA. A series of steps catalyzed in part by the recombinase then leads to joining of the two helices by at least one Holliday junction, in which a segment of a single strand in each helix is annealed to the ...
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DNA This ancient RNA world where nucleic acid would have been used for both catalysis and genetics may have influenced the evolution of the current genetic code based on four nucleotide bases. This would occur, since the number of different bases in such an organism is a trade-off between a small number of bases increa...
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DNA Methods have been developed to purify from organisms, such as phenol-chloroform extraction, and to manipulate it in the laboratory, such as restriction digests and the polymerase chain reaction. Modern biology and biochemistry make intensive use of these techniques in recombinant technology. Recombinant is a man-ma...
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DNA The development of forensic science and the ability to now obtain genetic matching on minute samples of blood, skin, saliva, or hair has led to re-examining many cases. Evidence can now be uncovered that was scientifically impossible at the time of the original examination. Combined with the removal of the double j...
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DNA They are mostly single stranded sequences isolated from a large pool of random sequences through a combinatorial approach called in vitro selection or systematic evolution of ligands by exponential enrichment (SELEX). DNAzymes catalyze variety of chemical reactions including RNA-cleavage, RNA-ligation, amino acids ...
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DNA The sequence may be aligned with other sequences to identify homologous sequences and locate the specific mutations that make them distinct. These techniques, especially multiple sequence alignment, are used in studying phylogenetic relationships and protein function. Data sets representing entire genomes' worth of...
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DNA Nanomechanical devices and algorithmic self-assembly have also been demonstrated, and these structures have been used to template the arrangement of other molecules such as gold nanoparticles and streptavidin proteins. Because collects mutations over time, which are then inherited, it contains historical informatio...
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DNA Levene suggested that consisted of a string of four nucleotide units linked together through the phosphate groups ("tetranucleotide hypothesis"). Levene thought the chain was short and the bases repeated in a fixed order. In 1927, Nikolai Koltsov proposed that inherited traits would be inherited via a "giant heredi...
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DNA DNA's role in heredity was confirmed in 1952 when Alfred Hershey and Martha Chase in the Hershey–Chase experiment showed that is the genetic material of the enterobacteria phage T2. Late in 1951, Francis Crick started working with James Watson at the Cavendish Laboratory within the University of Cambridge. In Febru...
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DNA In the 25 April 1953 issue of the journal "Nature", were published a series of five articles giving the Watson and Crick double-helix structure DNA, and evidence supporting it. The structure was reported in a letter titled ""MOLECULAR STRUCTURE OF NUCLEIC ACIDS A Structure for Deoxyribose Nucleic Acid"", in which t...
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DNA Further work by Crick and co-workers showed that the genetic code was based on non-overlapping triplets of bases, called codons, allowing Har Gobind Khorana, Robert W. Holley, and Marshall Warren Nirenberg to decipher the genetic code. These findings represent the birth of molecular biology.
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DNA ligase is a specific type of enzyme, a ligase, () that facilitates the joining of DNA strands together by catalyzing the formation of a phosphodiester bond. It plays a role in repairing single-strand breaks in duplex DNA in living organisms, but some forms (such as IV) may specifically repair double-strand breaks (...
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DNA ligase It does not ligate blunt-ended DNA except under conditions of molecular crowding with polyethylene glycol, and cannot join RNA to DNA efficiently. The activity of E. coli can be enhanced by DNA polymerase at the right concentrations. Enhancement only works when the concentrations of the DNA polymerase 1 are ...
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DNA ligase In mammals, there are four specific types of ligase. from eukaryotes and some microbes uses adenosine triphosphate (ATP) rather than NAD. Derived from a thermophilic bacterium, the enzyme is stable and active at much higher temperatures than conventional DNA ligases. Its half-life is 48 hours at 65 °C and gr...
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DNA ligase A ligation reaction is most efficient when the sticky ends are already stably annealed, and disruption of the annealing ends would therefore result in low ligation efficiency. The shorter the overhang, the lower the T. Since blunt-ended DNA fragments have no cohesive ends to anneal, the melting temperature i...
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DNA ligase The first was purified and characterized in 1967 by the Gellert, Lehman, Richardson, and Hurwitz laboratories. It was first purified and characterized by Weiss and Richardson using a six-step chromatographic-fractionation process beginning with elimination of cell debris and addition of streptomycin, followe...
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DNA ligase Some affected individuals also have problems involving the nervous system. Mutations in the ATM gene cause ataxia–telangiectasia. The ATM gene provides instructions for making a protein that helps control cell division and is involved in DNA repair. This protein plays an important role in the normal developm...
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DNA ligase Bloom syndrome results in skin that is sensitive to sun exposure, and usually the development of a butterfly-shaped patch of reddened skin across the nose and cheeks. A skin rash can also appear on other areas that are typically exposed to the sun, such as the back of the hands and the forearms. Small cluste...
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DNA ligase The narrow phylogenetic distribution, unique substrate specificity, and distinctive domain structure of NAD+ depandant compared with ATP-dependent human DNA ligases recommend the NAD ligases as targets for the development of new antibacterial drugs.
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DARPA The Defense Advanced Research Projects Agency (DARPA) is an agency of the United States Department of Defense responsible for the development of emerging technologies for use by the military. Originally known as the Advanced Research Projects Agency (ARPA), the agency was created in February 1958 by President Dwi...
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DARPA Eisenhower in 1958 for the purpose of forming and executing research and development projects to expand the frontiers of technology and science, and able to reach far beyond immediate military requirements, the two relevant acts being the Supplemental Military Construction Authorization (Air Force) (Public Law 85...
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DARPA Licklider as the first administrator of the Information Processing Techniques Office, which played a vital role in creation of ARPANET, the basis for the future Internet. Additionally, the political and defense communities recognized the need for a high-level Department of Defense organization to formulate and ex...
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DARPA ARPA at this point (1959) played an early role in Transit (also called NavSat) a predecessor to the Global Positioning System (GPS). "Fast-forward to 1959 when a joint effort between and the Johns Hopkins Applied Physics Laboratory began to fine-tune the early explorers’ discoveries. TRANSIT, sponsored by the Nav...
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DARPA also funded the development of the Douglas Engelbart's NLS computer system and The Mother of All Demos; and the Aspen Movie Map, which was probably the first hypermedia system and an important precursor of virtual reality. The Mansfield Amendment of 1973 expressly limited appropriations for defense research (thro...
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DARPA Many of the successful programs were transitioned to the Services, such as the foundation technologies in automatic target recognition, space based sensing, propulsion, and materials that were transferred to the Strategic Defense Initiative Organization (SDIO), later known as the Ballistic Missile Defense Organiz...
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DARPA On June 5, 2016, NASA and announced that it planned to build new X-planes with NASA's plan setting to create a whole series of X planes over the next 10 years. Between 2014 and 2016, shepherded the first machine-to-machine computer security competition, the Cyber Grand Challenge (CGC), bringing a group of top-not...
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DARPA Some realistic references to in fiction are as "ARPA" in "Tom Swift and the Visitor from Planet X" (consults on a technical threat), in episodes of television program "The West Wing" (the ARPA-distinction), the television program "Numb3rs"
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Genetic engineering Genetic engineering, also called Genetic modification or Genetic manipulation, is the direct manipulation of an organism's genes using biotechnology. It is a set of technologies used to change the genetic makeup of cells, including the transfer of genes within and across species boundaries to produc...
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Genetic engineering Genetically modified food has been sold since 1994, with the release of the Flavr Savr tomato. The Flavr Savr was engineered to have a longer shelf life, but most current GM crops are modified to increase resistance to insects and herbicides. GloFish, the first GMO designed as a pet, was sold in the...
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Genetic engineering Although there is a scientific consensus that currently available food derived from GM crops poses no greater risk to human health than conventional food, GM food safety is a leading concern with critics. Gene flow, impact on non-target organisms, control of the food supply and intellectual property...
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Genetic engineering Crops have been developed that aid food security by increasing yield, nutritional value and tolerance to environmental stresses. The DNA can be introduced directly into the host organism or into a cell that is then fused or hybridised with the host. This relies on recombinant nucleic acid techniques...
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Genetic engineering If genetic material from the same species or a species that can naturally breed with the host is used the resulting organism is called cisgenic. If genetic engineering is used to remove genetic material from the target organism the resulting organism is termed a knockout organism. In Europe genetic ...
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Genetic engineering In 1972, Paul Berg created the first recombinant DNA molecules by combining DNA from the monkey virus SV40 with that of the lambda virus. In 1973 Herbert Boyer and Stanley Cohen created the first transgenic organism by inserting antibiotic resistance genes into the plasmid of an "Escherichia coli" b...
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Genetic engineering government authorisation to perform field tests with the ice-minus strain of "Pseudomonas syringae" to protect crops from frost, but environmental groups and protestors delayed the field tests for four years with legal challenges. In 1987, the ice-minus strain of "P. syringae" became the first genet...
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Genetic engineering In 2009 11 transgenic crops were grown commercially in 25 countries, the largest of which by area grown were the US, Brazil, Argentina, India, Canada, China, Paraguay and South Africa. In 2010, scientists at the J. Craig Venter Institute created the first synthetic genome and inserted it into an emp...
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Genetic engineering The cell containing the gene is opened and the DNA is purified. The gene is separated by using restriction enzymes to cut the DNA into fragments or polymerase chain reaction (PCR) to amplify up the gene segment. These segments can then be extracted through gel electrophoresis. If the chosen gene or ...
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Genetic engineering thermal or electric shock), which increases the cell membrane's permeability to DNA; up-taken DNA can either integrate with the genome or exist as extrachromosomal DNA. DNA is generally inserted into animal cells using microinjection, where it can be injected through the cell's nuclear envelope dire...
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Genetic engineering Further testing using PCR, Southern hybridization, and DNA sequencing is conducted to confirm that an organism contains the new gene. These tests can also confirm the chromosomal location and copy number of the inserted gene. The presence of the gene does not guarantee it will be expressed at approp...
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Genetic engineering TALEN and CRISPR are the two most commonly used and each has its own advantages. TALENs have greater target specificity, while CRISPR is easier to design and more efficient. In addition to enhancing gene targeting, engineered nucleases can be used to introduce mutations at endogenous genes that gene...
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Genetic engineering This application has now been applied to, human growth hormones, follicle stimulating hormones (for treating infertility), human albumin, monoclonal antibodies, antihemophilic factors, vaccines and many other drugs. Mouse hybridomas, cells fused together to create monoclonal antibodies, have been ad...
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Genetic engineering In 2015 a virus was used to insert a healthy gene into the skin cells of a boy suffering from a rare skin disease, epidermolysis bullosa, in order to grow, and then graft healthy skin onto 80 percent of the boy's body which was affected by the illness. Germline gene therapy would result in any chang...
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Genetic engineering Scientists are creating "gene drives", changing the genomes of mosquitoes to make them immune to malaria, and then looking to spread the genetically altered mosquitoes throughout the mosquito population in the hopes of eliminating the disease. is an important tool for natural scientists, with the cr...
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Genetic engineering Some genes do not work well in bacteria, so yeast, insect cells or mammalians cells can also be used. These techniques are used to produce medicines such as insulin, human growth hormone, and vaccines, supplements such as tryptophan, aid in the production of food (chymosin in cheese making) and fuel...
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Genetic engineering The first crops to be released commercially on a large scale provided protection from insect pests or tolerance to herbicides. Fungal and virus resistant crops have also been developed or are in development. This makes the insect and weed management of crops easier and can indirectly increase crop y...
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Genetic engineering Gene transfer through viral vectors has been proposed as a means of controlling invasive species as well as vaccinating threatened fauna from disease. Transgenic trees have been suggested as a way to confer resistance to pathogens in wild populations. With the increasing risks of maladaptation in or...
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Genetic engineering One hundred and fifty-seven countries are members of the Protocol and many use it as a reference point for their own regulations. The legal and regulatory status of GM foods varies by country, with some nations banning or restricting them, and others permitting them with widely differing degrees of ...
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Genetic engineering The European Commission says that mandatory labeling and traceability are needed to allow for informed choice, avoid potential false advertising and facilitate the withdrawal of products if adverse effects on health or the environment are discovered. The American Medical Association and the American...
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Genetic engineering Other ethical issues raised include the patenting of life, the use of intellectual property rights, the level of labeling on products, control of the food supply and the objectivity of the regulatory process. Although doubts have been raised, economically most studies have found growing GM crops to ...
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Genetic engineering features in many science fiction stories. Frank Herbert's novel "The White Plague" described the deliberate use of genetic engineering to create a pathogen which specifically killed women. Another of Herbert's creations, the "Dune" series of novels, uses genetic engineering to create the powerful bu...
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Global Boundary Stratotype Section and Point A Global Boundary Stratotype Section and Point, abbreviated GSSP, is an internationally agreed upon reference point on a stratigraphic section which defines the lower boundary of a stage on the geologic time scale. The effort to define GSSPs is conducted by the International...
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Global Boundary Stratotype Section and Point In fact, further eroding its value as a boundary marker, it has since been identified in strata 4m "below" the GSSP! However, no other fossil is known that would be preferable. There is no radiometrically datable bed at the boundary at Fortune Head, but there is one slightly...
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Gene therapy (also called human gene transfer) is a medical field which focuses on the utilization of the therapeutic delivery of nucleic acid into a patient's cells as a drug to treat disease. The first attempt at modifying human DNA was performed in 1980 by Martin Cline, but the first successful nuclear gene transfer...
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Gene therapy The introduction of CRISPR gene editing has opened new doors for its application and utilization in gene therapy. Solutions to medical hurdles, such as the eradication of latent human immunodeficiency virus (HIV) reservoirs and correction of the mutation that causes sickle cell disease, may soon become a t...
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Gene therapy The first somatic treatment that produced a permanent genetic change was initiated in 1993. The goal was to cure malignant brain tumors by using recombinant DNA to transfer a gene making the tumor cells sensitive to a drug that in turn would cause the tumor cells to die. is a way to fix a genetic problem a...
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Gene therapy In 2012 Glybera, a treatment for a rare inherited disorder, lipoprotein lipase deficiency became the first treatment to be approved for clinical use in either Europe or the United States after its endorsement by the European Commission. Following early advances in genetic engineering of bacteria, cells, an...
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Gene therapy these approaches involve removing cells from patients, editing a chromosome and returning the transformed cells to patients. Gene editing is a potential approach to alter the human genome to treat genetic diseases, viral diseases, and cancer. these approaches were still years from being medicine. may be cl...
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Gene therapy Australia, Canada, Germany, Israel, Switzerland, and the Netherlands prohibit GGT for application in human beings, for technical and ethical reasons, including insufficient knowledge about possible risks to future generations and higher risks versus SCGT. The US has no federal controls specifically address...
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Gene therapy Non-viral methods present certain advantages over viral methods, such as large scale production and low host immunogenicity. However, non-viral methods initially produced lower levels of transfection and gene expression, and thus lower therapeutic efficacy. Newer technologies offer promise of solving these...
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Gene therapy Companies such as Editas Medicine, Intellia Therapeutics, CRISPR Therapeutics, Casebia, Cellectis, Precision Biosciences, bluebird bio, and Sangamo have developed non-viral gene editing techniques, however frequently still use viruses for delivering gene insertion material following genomic cleavage by gui...
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Gene therapy In 1972 Friedmann and Roblin authored a paper in "Science" titled "for human genetic disease?" Rogers (1970) was cited for proposing that "exogenous good DNA" be used to replace the defective DNA in those who suffer from genetic defects. In 1984 a retrovirus vector system was designed that could efficientl...
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Gene therapy This therapy also represents the beginning of cancer immunogene therapy, a treatment which proves to be effective due to the anti-tumor mechanism of IGF-I antisense, which is related to strong immune and apoptotic phenomena. In 1992 Claudio Bordignon, working at the Vita-Salute San Raffaele University, per...
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Gene therapy Injections of the ADA enzyme were also given weekly. For four years T cells (white blood cells), produced by stem cells, made ADA enzymes using the ADA gene. After four years more treatment was needed. Jesse Gelsinger's death in 1999 impeded gene therapy research in the US. As a result, the FDA suspended s...
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Gene therapy The researchers demonstrated this treatment to be a more permanent means to increase therapeutic HbF production. A new gene therapy approach repaired errors in messenger RNA derived from defective genes. This technique has the potential to treat thalassaemia, cystic fibrosis and some cancers. Researchers c...
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Gene therapy Similar to organ transplantation, gene therapy has been plagued by this problem. The immune system normally recognizes the new gene as foreign and rejects the cells carrying it. The research utilized a newly uncovered network of genes regulated by molecules known as microRNAs. This natural function selecti...
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Gene therapy The first operation was carried out on a 23-year-old British male, Robert Johnson, in early 2007. Leber's congenital amaurosis is an inherited blinding disease caused by mutations in the RPE65 gene. The results of a small clinical trial in children were published in April. Delivery of recombinant adeno-ass...
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Gene therapy The technique used a lentiviral vector to transduce the human ß-globin gene into purified blood and marrow cells obtained from the patient in June 2007. The patient's haemoglobin levels were stable at 9 to 10 g/dL. About a third of the hemoglobin contained the form introduced by the viral vector and blood ...
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Gene therapy The therapy used genetically modified T cells to attack cells that expressed the CD19 protein to fight the disease. In 2013, the researchers announced that 26 of 59 patients had achieved complete remission and the original patient had remained tumor-free. Human HGF plasmid DNA therapy of cardiomyocytes is ...
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Gene therapy , only the patients treated in clinical trials and a patient who paid the full price for treatment have received the drug. In December 2012, it was reported that 10 of 13 patients with multiple myeloma were in remission "or very close to it" three months after being injected with a treatment involving gene...
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Gene therapy In July researchers reported promising results for six children with two severe hereditary diseases had been treated with a partially deactivated lentivirus to replace a faulty gene and after 7–32 months. Three of the children had metachromatic leukodystrophy, which causes children to lose cognitive and mo...
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Gene therapy By 2016, 32 patients had been treated with positive results and researchers were hopeful the treatment would be long-lasting. Choroideremia is an inherited genetic eye disease with no approved treatment, leading to loss of sight. In March researchers reported that 12 HIV patients had been treated since 200...
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Gene therapy In October, researchers announced that they had treated a baby girl, Layla Richards, with an experimental treatment using donor T-cells genetically engineered using TALEN to attack cancer cells. One year after the treatment she was still free of her cancer (a highly aggressive form of acute lymphoblastic l...
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Gene therapy A 2016 Cochrane systematic review looking at data from four trials on topical cystic fibrosis transmembrane conductance regulator (CFTR) gene therapy does not support its clinical use as a mist inhaled into the lungs to treat cystic fibrosis patients with lung infections. One of the four trials did find we...
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Gene therapy In December the results of using an adeno-associated virus with blood clotting factor VIII to treat nine haemophilia A patients were published. Six of the seven patients on the high dose regime increased the level of the blood clotting VIII to normal levels. The low and medium dose regimes had no effect on...
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Gene therapy It will be the world's first "in vivo" study of a CRISPR-based human gene editing therapy, where the editing takes place inside the human body. Speculated uses for gene therapy include: Athletes might adopt gene therapy technologies to improve their performance. Gene doping is not known to occur, but multi...
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Gene therapy Possible regulatory schemes include a complete ban, provision to everyone, or professional self-regulation. The American Medical Association’s Council on Ethical and Judicial Affairs stated that "genetic interventions to enhance traits should be considered permissible only in severely restricted situations...
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Gene therapy There are no international treaties which are legally binding in this area, but there are recommendations for national laws from various bodies. The Helsinki Declaration (Ethical Principles for Medical Research Involving Human Subjects) was amended by the World Medical Association's General Assembly in 200...
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Gene therapy NIH provides funding for research that develops or enhances genetic engineering techniques and to evaluate the ethics and quality in current research. The NIH maintains a mandatory registry of human genetic engineering research protocols that includes all federally funded projects. An NIH advisory committe...
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Gene therapy In 1994, gene therapy was a plot element in "The Erlenmeyer Flask", the first-season finale of "The X-Files"; it is also used in "Stargate" as a means of allowing humans to use Ancient technology.
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Outline of health sciences The following outline is provided as an overview of and topical guide to health sciences: Health sciences – are those sciences which focus on health, or health care, as core parts of their subject matter. Because these two subject matter relate to multiple academic disciplines, both STEM disc...
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Human cloning is the creation of a genetically identical copy (or clone) of a human. The term is generally used to refer to artificial human cloning, which is the reproduction of human cells and tissue. It does not refer to the natural conception and delivery of identical twins. The possibility of person cloning has ra...
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Human cloning In his speech on "Biological Possibilities for the Human Species of the Next Ten Thousand Years" at the "Ciba Foundation Symposium on Man and his Future" in 1963, he said: Nobel Prize-winning geneticist Joshua Lederberg advocated cloning and genetic engineering in an article in "The American Naturalist" i...
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Human cloning Hwang claimed to have created eleven different patient-specific stem cell lines. This would have been the first major breakthrough in human cloning. However, in 2006 "Science" retracted both of his articles on clear evidence that much of his data from the experiments was fabricated. In January 2008, Dr. A...
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Human cloning Four embryonic stem cell lines from human fetal somatic cells were derived from those blastocysts. All four lines were derived using oocytes from the same donor, ensuring that all mitochondrial DNA inherited was identical. A year later, a team led by Robert Lanza at Advanced Cell Technology reported that ...
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Human cloning The technique, now refined, has indicated that it was possible to replicate cells and reestablish pluripotency-"the potential of an embryonic cell to grow into any one of the numerous different types of mature body cells that make up a complete organism" Creating induced pluripotent stem cells ("iPSCs") i...
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Human cloning Both the processes of SCNT and iPSCs have benefits and deficiencies. Historically, reprogramming methods were better studied than SCNT derived embryonic stem cells (ESCs). However, more recent studies have put more emphasis on developing new procedures for SCNT-ESCs. The major advantage of SCNT over iPSCs...
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Human cloning Studying developmental pathways in humans has given developmental biologists more evidence toward the hypothesis that developmental pathways are conserved throughout species. iPSCs and cells created by SCNT are useful for research into the causes of disease, and as model systems used in drug discovery. Ce...
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Human cloning In bioethics, the ethics of cloning refers to a variety of ethical positions regarding the practice and possibilities of cloning, especially human cloning. While many of these views are religious in origin, the questions raised by cloning are faced by secular perspectives as well. Human therapeutic and re...
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Human cloning "Cloning's Future" raises series question on whether the embryo's have any rights or if the donor outweigh's the right of the embryo to live. Religious groups are divided, with some opposing the technology as usurping God's role in creation and, to the extent embryos are used, destroying a human life; oth...
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Human cloning Polls have indicated that an overwhelming majority of Canadians oppose human reproductive cloning, though the regulation of human cloning continues to be a significant national and international policy issue. The notion of "human dignity" is commonly used to justify cloning laws. The basis for this justif...
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Human cloning is explicitly prohibited in Article 24, "Right to Life" of the 2006 Constitution of Serbia. In terms of section 39A of the Human Tissue Act 65 of 1983, genetic manipulation of gametes or zygotes outside the human body is absolutely prohibited. A zygote is the cell resulting from the fusion of two gametes;...
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