Do mesenchymal stem cells with high telomerase expression actively restore their chromosome arm specific telomere length pattern after exposure to ionizing radiation?
Our findings indicate that a telomere length pattern does exist in mesenchymal stem cells and that the pattern is not actively re-established after destruction by irradiation.
As the sperm analysis revealed a normal X:Y ratio, an alteration in the embryo sex ratio might be explained by the preferential binding of Y-bearing sperm to the oocyte, an oocyte-related "discouragement" of binding of X-bearing sperm, or a postfertilization event.