Effect of avitaminosis A and hypervitaminosis A on urinary bladder carcinogenicity of N [4 (5 nitro 2 furyl) 2 thiazolyl]formamide

S. M. Cohen, J. F. Wittenberg, G. T. Bryan

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

The effect of vitamin A deficiency and hypervitaminosis A on the urothelial carcinogenicity of N [4 (5 nitro 2 furyl) 2 thiazolyl]formamide (FANFT) was determined in female weanling Sprague Dawley rats. Vitamin A deficiency resulted in squamous metaplasia of the urinary bladder and high incidences of cystitis, ureteritis, and pyelonephritis. Administration of FANFT to vitamin A deficient rats appeared to accelerate the carcinogenic process, with earlier appearance of urinary bladder tumors and the development of ureteral and renal pelvic carcinomas. Most of these tumors were squamous cell, occasionally with transitional cell foci. Hypervitaminosis A prevented the appearance of squamous metaplasia and squamous cell neoplasia in rats fed FANFT, but it did not inhibit the formation of transitional cell hyperplasia or neoplasia in comparison to rats receiving normal levels of vitamin A and FANFT.

Original languageEnglish (US)
Pages (from-to)I
JournalCancer Research
Volume36
Issue number7
StatePublished - Dec 1 1976

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FANFT
Hypervitaminosis A
Avitaminosis
Urinary Bladder
Vitamin A Deficiency
Metaplasia
Vitamin A
Epithelial Cells
Neoplasms
Cystitis
Pyelonephritis
Urinary Bladder Neoplasms
Hyperplasia
Sprague Dawley Rats
Carcinoma
Kidney
formamide
Incidence

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

Cite this

Effect of avitaminosis A and hypervitaminosis A on urinary bladder carcinogenicity of N [4 (5 nitro 2 furyl) 2 thiazolyl]formamide. / Cohen, S. M.; Wittenberg, J. F.; Bryan, G. T.

In: Cancer Research, Vol. 36, No. 7, 01.12.1976, p. I.

Research output: Contribution to journalArticle

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