... because these cells produce insulin, the hormone that helps the body move glucose throughout the body to use it for energy. As a result, in a diabetic immune system, the pancreas in unable to produce insulin to move glucose around, so the glucose stays in the blood ("Type 1 Diabetes- What is Diabetes?" ... with these diseases. The issue of embryonic stem cell research is extremely controversial due to the fact that the cells are taken from four to five week old human embryos. Many Americans believe that the use of embryonic stem cells is unjust because they assume that killing a huma...

• Word Count: 3172
• Approx Pages: 13
• Has Bibliography
• Grade Level: Undergraduate

... . He fused a cell from an 8-cell lamb embryo with an enucleated unfertilized egg. The fertilized embryos were coated with agar and placed in the oviducts of a sheep to grow for a week. They were then placed into a uterus of a surrogate mother, and one sheep survived birth v/s the first cloned mammal by nuclear transfer."" (http://library.thinkquest.org/C0122429/history/1984.htm). In ... 1986, Willadsen cloned a cow from distinguishable, one week old embryo cells. This illustrated that genetic information of a cell did not decrease as a cell is specialized. In 1993, the First humans were ...

• Word Count: 1955
• Approx Pages: 8
• Grade Level: High School

... ES cells, scientists can transform them to related important adult cells such as bone, muscle, liver or blood cells. People take human embryonic stem cells from fertilized embryos less than a week old. Those embryos are usually donated in special clinics or extract the cells from an aborted fetus. Scientists" preferred way to obtain cells is by extraction from a 'blastocyst', which is ... that not any embryonic stem cells would need to be transformed into different tissues for transplantation into patients. Whenever tissue transplantation takes place, there is always a risk that the bod...

• Word Count: 2589
• Approx Pages: 10
• Grade Level: High School

... substantia nigra neurons of the pars compacta and loss of striatal dopamine in the basal ganglia, indicative of Parkinson's patients. Fetal human brain samples were then gathered from 12-20 week gestations. The transplantation of the stem cells were administered to the MPTP-lesioned mice 7 days after administration of MPTP. The results of this experiment were promising for the future of ... major symptomatic benefits. However, improvements were seen with PET imaging. He also noted that results for treated patients improved for about nine months, then worsened, which he attributed to a d...

• Word Count: 4190
• Approx Pages: 17
• Has Bibliography
• Grade Level: Undergraduate