elucidating the critical epigenetics events involved in differentiation and reprogramming of cells to primordial germ cells (pgcs) is among the interesting issues in stem cell research. here, i will talk about critical transcription factors and global hypomethylation in development of germ cells. evidence strongly suggests that the earliest pgcs emerging in the e7.25 mouse embryo epiblast have ...

backgrounds: a straight-forward way to identify whether a drug or environmental chemical can be harmful to unborn baby is to evaluate its effect on laboratory animals. all invivo methods need large number of animal and are therefore time consuming and expensive. however, the thousands of chemicals in need of testing, to reduce the spending of live animals, an assortment of in vitro assays has b...

the introduction and evolution of hematopoietic stem cell transplantation (hsct) could be traced back to 1950s, to the studies on interactions among irradiation, covering spleen and bone marrow from it and injection of bone marrow cells. today, hsct is considered a well-established, effective and promising means of therapy for various malignant and non-malignant medical conditions, both in chil...

background:  renal transplantation is the best choose in the end stage renal disease (esrd), and acute rejection and graft dysfunction remain major challenges in the worldwide, even with the advent of new immunosuppressive drugs. the novel cell-based anti-rejection treatments have been studied by using different stem cell sources. in this study, transplantation of autologous-bone-marrow-derived...

the ability to culture human stem cells long term, and possibly indefinitely, and to control how such cells specialise to form the different tissues of the body offers the possibility of major advances in healthcare. stem cells have been isolated and cultured, but a great deal of research is required to develop cell lines which can generate replacement cells and tissues to treat many diseases.s...

stem/progenitor cell based therapeutic approach in our daily routine clinical practice, has been elusive dream in medical sciences and improvement of stem cell homing as one of major challenges in cell therapy programs, has been considered a promising milestone. it has been proved that stem/progenitor cells exhibit a homing response to injured tissues/organs, mediated by interactions of chemoki...

introduction: we aimed at evaluating the clinical, laboratory and echocardiography effects of intracoronary administration of autologous bone marrow stem cell transplantation in different clinical entities of chronic heart failure (hf) patients.   methods: this procedure was carried out during an interventional study conducted in the cardiology department from jan 2012 to apr 2013. the hf patie...

based on epidemiologic data, women who take oral contraceptives seem to have an increased risk of developing thromboembollic disease. the thrombotic effects of oral contraceptive (oc) are probably mediated, at least partly through their effects on the coagulation system. plasma levels of several clotting factors have been shown to be elevated in oc users, and this increase is graduated accordin...

objectives: the purpose of this study was to determine the efficacy of oral sucralfate suspension (1gr/10ml) in the treatment of recurrent aphthous stomatitis (ras). materials and methods: fifty-five patients with oral aphthae were included in this randomized, double-blind, placebo-controlled clinical trial conducted in the department of oral medicine, school of dentistry, mashhad university of...

Fasting is a religious obligation, which can be challenging for individuals with oral conditions due to its stringent code of conduct. Moreover, food abstinence during fasting can restrict oral feeding even further in patients whose nutrition has been already compromised. Previous research has mainly concentrated on oral hygiene and gum health, disregarding orodental conditions and diseases. Th...