Embryonic stem cell lines has increased rapidly

In the last five years the number of embryonic stem cell lines has increased rapidly. In December 2012 there were 198 preserved cell lines available at the U.S. National Institutes of Health (NIH) and more than 1,200 stem cell lines at the Human  Embryonic  Stem Cell Registry...
Posted On 29 Dec 2013
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How long leftover human embryos?

An off-posed question is how long leftover human embryos resulting from in vitro fertilisation processes can be cryopreserved for use as research material. Pruksananonda et al. (Bio Research Open Access, 166-173, 2012) showed that useful embryonic cell lines can be derived for...
Posted On 29 Dec 2013
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This news will no doubt create new hope in the therapeutic use of iPS cells in humans

The therapeutic possibilities offered by iPS cells seem self-evident and are set to increase thanks to the Japanese government’s commitment to promoting research in this field. Indeed, according to an article in Nature Biotechnology (31; 272-273, 2013), Japan plans to build a 222...
Posted On 29 Dec 2013
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15.5% of women suffer from infertility in the United States

An off-debated issue concerning assisted reproduction is the correct identification of infertile couples. A couple is thought to be infertile when they are unable to become pregnant after one year of unprotected sexual intercourse. In a recent study (Fertil Steril 99; 1324-1331,...
Posted On 29 Dec 2013
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Male contraceptive

The discovery of a gene that could play an important role in sperm development may be useful for producing a male contraceptive, which would be positive as hormone methods, with their negative side effects, would not have to be used (Plos Genet, 2012, 8(5):e1002697).
Posted On 10 Dec 2013
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1.1 million infected with HIV only in USA

In the United States, there are 1.1 million people infected with HIV, with an increase of 60% in the last 15 years (JAMA 308; 347-348, 2012).
Posted On 10 Dec 2013
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Sjögren’s syndrome improved by mesenchymal stem cells

Sjögren’s syndrome is a systemic autoimmune disease mainly characterised by dry mouth and eyes. Its causes are not well known at present, but what is interesting is that the condition has been able to be improved using mesenchymal stem cells from the patient’s own bone marrow...
Posted On 09 Dec 2013
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Non-invasive techniques to determine the genetic structure of embryos

Preimplantational genetic diagnosis is a widely used technique, employed in the selection of embryos that are free of a heredity or genetic disease and to determine the quality of embryos produced by in vitro fertilisation techniques which are then selected for their subsequent...
Posted On 17 Nov 2013
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Formation of liver tissue from iPS cells

In an article recently published in Nature (http: //dx.doi.org/10.1038/nature12271, 2013), a Japanese team of researchers described how they were able to produce small quantities of liver tissue that showed good vascularisation, that is, liver tissue that was quite similar to...
Posted On 17 Nov 2013
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DNA is not the only factor that influences personality of genetically identical gametes

Further evidence has been found which shows that the environment and life experiences, and not only DNA, can contribute to the development of the human personality. In other words, genetics doesn’t account for everything.  This was shown by a paper published in Science...
Posted On 17 Nov 2013
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