Insulin and thyroid hormones stimulate matrix metabolism in primary cultures of articular chondrocytes from young rabbits independently and in combination.

Abstract excerpt

These studies examined the effects of heat-inactivated horse serum, insulin, triiodothyronine (T3), and thyroxine (T4), individually and in combination, on collagen and proteoglycan synthesis by primary cell cultures of articular chondrocytes from immature male rabbits. Insulin concentrations of 25 to 100 ng/ml (4.4 to 17.4 x 10(-9) M) increasingly stimulated collagen and proteoglycan synthesis in the absence of...

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