Sunday, December 29, 2019
Saturday, December 21, 2019
Plasticity Of Mesenchymal Stem Cell - 3461 Words
PLASTICITY OF MESENCHYMAL STEM CELL INTRODUCTION Mesenchymal stem cells (MSC), also regarded as marrow stromal cells, are multipotent adult stem cells that are able to differentiate into limited mesodermal lineage and are able to self renew. MSCs possess characteristics that make them useful in regenerative medicine including, immunomodulation, secretion profile and homing characteristics. Depending on where they are used, these characteristics can have a positive and negative influence on the disease. This review will focus on the immunomodulatory characteristics of MSCs, several isolation points of MSCs, and differentiation which make them useful tool in treatment of post myocardial infarction, diabetic foot disease (wounds), immuneâ⬠¦show more contentâ⬠¦CHARACTERISTICS OF MSCs Isolation points of MSCs Mesenchymal stem cells are attractive tools in the clinic and have been isolated from different tissues of the body but to be qualified for use in regenerative medicine, they must in addition to the characteristics described by the international society for cell therapy, be expandable ex vivo with high proliferative potentials, possess multipotent capability, and must be easy to harvest for autologous transplantation.4 The latter characteristic ensures that the donor is not subjected to extreme condition or pain in order to access their stem cell. The site for MSC isolation includes but not limited to; bone marrow, adipose tissue, whartson jelly umbilical cord, and skin. Bone marrow: MSCs isolated from bone marrow stromal cell was first named Westen-Baintonââ¬â¢s cell but were first plated by Friedensten in 1960. These cells have fibroblast morphology and were plastic adherent with minimal contaminations of endothelial cells. Bone marrow derived-MSCs (BM-MSCs) have been shown to maintain the hematopoietic stem cell environment through the secretion of cytokines such as vascular endothelial growth factor (VEGF). BM-MSCs differentiation potential in vitro as well as surface markers makes them acceptable source for stem cell.5 Wexler and colleagues showed that although BM is a reliable source for
Friday, December 13, 2019
Magazine Article on E-books Free Essays
Cassettes-sidelined! DVDs ââ¬âgathering dust! VHS-retired! Technology mutates and evolves leaving redundant platforms in its place. Much of the time technology is beneficial and change is good, however occasionally change is not so auspicious and we do not realise what we have lost until itââ¬â¢s truly gone. The book. We will write a custom essay sample on Magazine Article on E-books or any similar topic only for you Order Now The Bible, The odyssey and The Gruffalo (and thatââ¬â¢s not even mentioning the poets). All books which have stood the test of time and are still being read as much today as the moment they were published; with these texts societies were bound and broken; lessons were learned and empires fell; all to the humble book. However the brazen veteran; the book; is endanger of being stripped of its crown by the young and brash E-book. In the words of Northrop Frye books are the only piece of technology which has not become socially defunctââ¬âYet! They have stood firm whilst DVDs, tapes and vinyl like empires, rose and fell. However the frog like e-book with its dull boring features and its fabulously annoying Wifi connectivity could be the bane of books. E-books are vastly growing in nature, like a weed; multiplying on every train, beach and plane you see them they are growing in number and his suggested by 2016 there will be nearly 10 billion of these dastardly devices roaming the world. Even the mere existence of E-books has created a whole new type of piracy where people are ripping off hard working authors and publishers by getting counterfeit e-books online for free. This illegal practice was consummated by the emotionless e-book. These characterless devices rob the tangible nature you get from books. The feel of the paper the smell of the ink all contribute to the sensation we get from reading. E-books rob this from us and sadly soon children will not understand this interaction as they will be more familiar with the blistering headache the monotonous e-book provides. How to cite Magazine Article on E-books, Papers
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