Figure 4

hTPO expression in the milk of goat after the transfer of pTPOGD vector.
pTPOGD and pCDNA3.1 zeo(-) were purified by EndoFree Plasmid Maxi Purification Kit, embedded by liposome and then injected into two groups of goat mammary gland. The milk was collected after 12 h for continual 14 days and hTPO expression level was detected.