Taurine Enhances the Sexual Response and Mating Ability in Aged Male Rats - Advances in Experimental Medicine and Biology - page 330

Fig. 32.4 The levels of LH and FSH in the serum: Results are presented as mean ± SE ( n = 8). **:
significantly different from the control group ( p < 0.01)

Fig. 32.5 The levels of T and E2 in the serum: Results are presented as mean ± SE ( n = 8). *:
significantly different from the control group ( p < 0.05), **: significantly different from the control
group ( p < 0.01)

32.4 Discussion

Taurine is one of the most abundant free amino acids in male reproductive organs,
and it has many effects on male reproduction including stimulating androgen secre-
tion (Holmes et al. 1992 ; Yang et al. 2010b ). It has been generally accepted that
androgens are critical for development, growth, and maintenance of penile erectile
tissue. The levels of taurine and androgen reduced with aging, and aging associated
with decline in libido, erection, and sexual ability (Schiavi and Rehman 1995 ;
Meacham and Murray 1994 ). So we hypothesized that there are some relations
between taurine concentration reduction and age-related erectile dysfunction, and
taurine supplement may increase the sexuality and mating ability in aged males.