Partial characterization of a renotropic factor

D. S. Gaydos, H. Golclin, B. Jenson, D. Gersten, B. Boecleker, C. Bartz, Harry G. Preuss

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Abstract

In 70 experiments, the existence of a circulating renal growth factor was confirmed by 9.3% stimulation of 3H-thymidine into the DNA of renal fragments incubating for 90 min in the presence of sera from 20-hour unilaterallly nephrectomized rats compared to sera from 20-hour sham-operated rats (p<0.001). Dialysis (7.4%, p<0.01) or removal of albumin (11.8%, p<0.001) from sera of both sham-operated and unilaterally nephrectomized rats did not appreciably change the magnitude of the statistically significant stimulation. When albumin-free sera were placed in boiling water for 1-3 min to coagulate protein, the stimulation was still significantly different from control (5%, p < 0.05). Addition of sera from unilaterally nephrectomized rats (20 h) to isolated nuclei, even isolated nuclei removed from growing kidneys (72 h after unilateral nephroctomy), faileds to enhance DNA synthesis significantly.

Original languageEnglish (US)
Pages (from-to)139-144
Number of pages6
JournalKidney and Blood Pressure Research
Volume6
Issue number3
DOIs
Publication statusPublished - Jan 1 1983

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Keywords

  • DNA synthesis
  • Isolated nuclei
  • Partial characterization
  • Renal growth
  • Renotropin

ASJC Scopus subject areas

  • Nephrology
  • Cardiology and Cardiovascular Medicine

Cite this

Gaydos, D. S., Golclin, H., Jenson, B., Gersten, D., Boecleker, B., Bartz, C., & Preuss, H. G. (1983). Partial characterization of a renotropic factor. Kidney and Blood Pressure Research, 6(3), 139-144. https://doi.org/10.1159/000172892