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For the first time, researchers have successfullycreated stem cells from the skin cells of adults. This is considered the first step in developing patient-specific cells lines to treat diseases like heart failure, Parkinson’s, multiple sclerosis, and vision loss, but it is also the first step inhuman reproductive cloning, an issue fraught with ethical dilemmas. To create the stem cells, researchers fused a grown skin cell with an ovum whose DNA had been removed. The resulting embryo contains an inner lining of pluripotent stem cells. Of 39 attempts to create stem cells from adult cells, the researchers succeeded only once for each of their two skin cell donors. More… Discuss Like this: Like Loading... Posted in Educational, IN THE SPOTLIGHT, MEMORIES, ONE OF MY PREFERATE THINGS, PEOPLE AND PLACES, Uncategorized Tagged adult cells, Cell biology, Cell potency, Cloning, dna, embryonic stem cell, multiple sclerosis, Parkinson's disease, pluripotent stem cells, Skin, skin cell, Stem cell, stem cells A Japanese scientist who published groundbreaking research on stem cells earlier this year is now calling for the study to be withdrawn. Scientists have as yet been unable to replicate the study’s finding that bathing mature cells in a weak acid solution could quickly and cheaply convert them into stem cells, and questions have been raised about the accuracy and legitimacy of the data and images included in the study. The RIKEN Center for Developmental Biology in Japan is now conducting an inquiry into the paper. More… Discuss Like this: Like Loading... Posted in Educational, IN THE SPOTLIGHT, News, PEOPLE AND PLACES, Uncategorized Tagged Cell, Developmental biology, groundbreaking research, Japan, Japanese scientist, mature cells, Nature (journal), RIKEN, RIKEN Center, Stem cell, Stem Cell Study Findings, stem cells, University of Yamanashi About 10 percent of babies born prematurely and weighing less than 2 lb (800 g) go on to develop necrotizing enterocolitis, a serious intestinal infection that can cause tissue death and progress to blood poisoning. In severe cases, surgery to remove the diseased tissue may become necessary. In the future, however, stem cells found in amniotic fluid may be used to treat the condition, reducing the need for surgical intervention and improving survival rates. Preliminary studies on lab rats indicate that these cells have the capacity to reduce inflammation and repair damage to the intestines. More… Discuss Like this: Like Loading... UK researchers have restored hearing in animals with the use of stem cells for the first time. About 10 percent of people with profound hearing loss have damaged nerve cells, called spiral ganglion neurons, that fail to detect signals created by sound vibrations. Using stem cells from a human embryo—which can become any other type of cell—the scientists created cells similar to the spiral ganglion neurons. They then injected them into the ears of deaf gerbils. By the end of the study, an average of 45 percent of the animals’ hearing range had been restored. However, scientists said the possibility of treating humans in this way is still distant. More… Discuss Like this: Like Loading... Stem cells are undifferentiated cells that retain the ability to develop into any one of numerous cell types, and they therefore hold the key to promising new medical treatments. Yet, research into their use has been somewhat limited due to the controversy surrounding the harvesting of the most flexible type of stem cell, the embryonic stem cell. Stem cells collected from amniotic fluid, however, do not raise such ethical concerns and could be a useful alternative. Researchers have been able to make these cells pluripotent, or nearly fully flexible, by adding a chemical that modifies the configuration of their DNA without introducing new genes to the cells. More… Discuss Like this: Like Loading...
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Matične stanice su nespecifične stanice koje se neprestano repliciraju putem diobe stanica za duže vrijeme . Pod posebnim uvjetima , ove stanice mogu biti specijalizirane stanice , kao što su stanice srčanog mišića i jetrenih stanica . Znanstvenici proučavaju matične stanice kako bi eventualno razviti staničnih terapije za liječenje raznih bolesti i poremećaja vrste Postoje dvije vrste matičnih stanica istražuje : . Embrionalne matične stanice i somatske matične stanice . Embrionalne matične stanice iz embrija - razvijene jaja oplođena u laboratorijskim uvjetima . Te stanice su unspecialized i mogu biti stimulirani da postale diferencirane stanice . Somatske matične stanice ( koji se nazivaju i odrasle matične stanice ) su nediferencirane stanice nalaze u diferenciranom tkivu . Te stanice se nalaze u tkiva za popravak i održavanje tkiva . Pacijenti mogu donirati to da istraživanja za moguću terapiju stanica u liječenju . Razmatranja Došlo je dovelike kontroverze tijekom istraživanja matičnih stanica , uglavnom preko istraživanja embrionalnih matičnih stanica . Ove se matične stanice su uklonjene iz embrija prije embrionalne stanice počinju razlikovati . Mnogi konzervativne i vjerske skupine su protiv ove vrste istraživanja , jer oni vjeruju da ljudski život počinje nakon začeća , a ovo istraživanje uništava potencijal ljudski život . S medicinskog stajališta , istraživanja su dokazala da su mnogi embrionalne matične stanice pohranjene tijekom određenog vremena razvije kromosomske anomalije koje često stvaraju stanice raka . Prednosti ukupni cilj istraživanja matičnih stanica u razvoju staničnih terapiji za liječenje , kao što je popravak tkiva i organa . Matične stanice i pupčana vrpca stanice već se koristi u liječenju leukemije i limfoma pacijenata . Korištenjem pacijentove vlastite matične stanice , šanse za odbacivanjem transplantata su znatno manji i , prema tome, prinos veći uspjeh liječenja . Potencijalni Znanstvenici imaju vrlo velike nade za potencijal matičnih stanica terapija . Oni vjeruju da matične stanice ne samo da može pružiti transplantacija koštane srži , ali vrlo vjerojatno drugi organi . Matične stanice mogu pružiti bolje , uspješnije liječenje raka . Osim toga , istraživači isprobati kako se matične stanice mogu liječenje neuroloških poremećaja kao što je Parkinsonova bolest , ozljede leđne moždine i oštećenja mozga od moždanog udara . Ako teorije istraživača točni , istraživanja matičnih stanica mogla pružiti nevjerojatan iznos od vrlo uspješnih terapija za neizlječivo bolesti , transplantiranih pacijenata , raka i genetskih poremećaja . From:http://hr.265health.com/alternative-medicine/other-alternative-medicine/1016049909.html