Estradiol inhibits hepatic stellate cell area and collagen synthesis in the chicken liver

Shotaro Nishimura, Akifumi Teshima, Fuminori Kawabata, Shoji Tabata

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Hepatic stellate cells (HSCs) are the main collagen-producing cells in the liver. The HSC area and amount of collagen fibers are different between male and female chickens. This study was performed to confirm the effect of estradiol on collagen synthesis in the growing chicken liver. Blood estradiol levels in chicks were compared at 4 and 8 weeks of age, and the collagen fibril network in liver tissue was observed at 8 weeks by scanning electron microscopy. Intraperitoneal administrations of estradiol and tamoxifen to male and female chicks, respectively, were performed daily from 5 to 8 weeks of age. The areas of HSCs and collagen contents were measured in the liver tissue. The blood estradiol level was higher in females than in males, and the collagen fibril network was denser in males than in females at 8 weeks of age. Estradiol administration in males induced decreases in the HSC area and collagen content of the liver. Conversely, tamoxifen administration in females induced an increase in the HSC area but did not facilitate collagen synthesis. Based on these results, estradiol inhibits the area and collagen synthesis of HSCs in the growing chicken liver under normal physiological conditions.

Original languageEnglish
Pages (from-to)1827-1834
Number of pages8
JournalAnimal Science Journal
Issue number11
Publication statusPublished - Nov 2017

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences(all)


Dive into the research topics of 'Estradiol inhibits hepatic stellate cell area and collagen synthesis in the chicken liver'. Together they form a unique fingerprint.

Cite this