Insulin-like growth factors act synergistically with basic fibroblast growth factor and nerve growth factor to promote chromaffin cell proliferation.

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Insulin-like growth factors act synergistically with basic fibroblast growth factor and nerve growth factor to promote chromaffin cell proliferation.

We have investigated the effects of insulin-like growth factors (IGFs), basic fibroblast growth factor (bFGF), and nerve growth factor (NGF) on DNA synthesis in cultured chromaffin cells from fetal, neonatal, and adult rats by using 5-bromo-2'-deoxyuridine (BrdUrd) pulse labeling for 24 or 48 h and immunocytochemical staining of cell nuclei. After 6 days in culture in the absence of growth fact...

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Interactions between growth hormone, insulin-like growth factor I, and basic fibroblast growth factor in melanocyte growth.

Melanocytes, highly differentiated neural crest-derived cells, are located in the basal layer of the epidermis, where they play a role in protecting against UV damage in the skin. Previous studies suggest that both growth hormone (GH) and the insulin-like growth factor I (GH/IGF-I) system may be important for melanocyte growth and function. We have therefore characterized the role of the GH/IGF...

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Effects of Nerve Growth Factor, Insulin- Like Growth Factor-I and Collagen Gel on Peripheral Nerve Channel: Sensory, Functional and Regeneration Through Piezoelectric Electrophysiologicalal Study

Purpose: The limited availability of donor sites for nerve grafts continues to stimulate research toward finding suitable alternatives. Material and Methods: In the following study, the effects of direct administration of Nerve Growth Factor (NGF), Insulin - Like Growth Factor - I (IGF-I) , or / and collagen gel into Polyvinylidene Fluride (PVDF) gap was tested in a rat sciatic nerve model. A ...

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Insulin-like growth factor I gene polymorphism associated with growth traits in beluga (Huso huso) fish

The aim of the present study was to detect polymorphism in Insulin like growth factor-I (IGF-I) gene of beluga (Huso huso) fish using PCR-SSCP technique and also investigation of its association with growth traits (condition factor, body length and weight). A total of 150 specimens of beluga were randomly selected and DNA was isolated from caudal fin using modified salting out method. Then two ...

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ژورنال

عنوان ژورنال: Proceedings of the National Academy of Sciences

سال: 1994

ISSN: 0027-8424,1091-6490

DOI: 10.1073/pnas.91.5.1771