Identification of presence or absence of IGF-I in C6 cell samples. Quantification of cDNA obtained by retrotranscription of isolated RNA, using spectrophotometer Gene Specl 1 at 260-280 nM. Values between 100 and 300 ng/ul.

Table 1: Identification of presence or absence of IGF-I in C6 cell samples. Quantification of cDNA obtained by retrotranscription of isolated RNA, using spectrophotometer Gene Specl 1 at 260-280 nM. Values between 100 and 300 ng/ul.

Sample	Cells	Concentration of IGF-I cDNA (ng/ul)
1	Parental cells	300
2	Hela cells	260
3	AS cells	210
4	AS cells	111
5	TH cells	180
6	TH cells	100