Detailed Instructions: In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.
Problem: Despite the fact that biochemical estimates of bone turnover indicate that ( short - term ) administration of rhGH and IGF - I stimulates bone metabolism in non - osteoporotic older people , no significant changes have been observed in bone mineral density at the proximal femur .
Solution:
IGF - I