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Table 1 Vitamin K1 and menaquinone-4 concentrations in liver and testis

From: Menaquinone-4 enhances testosterone production in rats and testis-derived tumor cells

Organ Liver Testis
  Vitamin K1 Menaquinone-4 Vitamin K1 Menaquinone-4
Cont (n = 8) 212.7 ± 20.72a 0.634 ± 0.529 7.331 ± 1.621 189.5 ± 8.823
MK-4 sup (n = 7) 77.82 ± 6.415** 2016.8 ± 359.1** 1.481 ± 1.516* 995.9 ± 111.6**
  1. aEach value is the mean ± SE (pmol/g tissue). Values are significantly different from those of the Cont group at *p < 0.05, **p < 0.01.