Table 3 Effect of a low oxygen environment on mean production rates of H2S from homogenates of rat liver, rat intrauterine tissues and human placenta (nM/min/g) in the presence and absence (negative control) of 10 mM L-cysteine.
From: The endogenous production of hydrogen sulphide in intrauterine tissues
Tissue | Treatment | H2S production rate (nM/min/g) | Significance | ||
|---|---|---|---|---|---|
| Â | Â | Mean | SD | n | Â |
Rat liver | -ve control | 4.0 | 3.5 | 4 | Â |
| Â | L-cysteine | 331 | 269 | 4 | Â |
| Â | Low O2 | 454 | 205 | 4 | P < 0.05 |
Rat uterus | -ve control | 0 | 0 | 4 | Â |
| Â | L-cysteine | 405 | 432 | 4 | Â |
| Â | Low O2 | 606 | 620 | 4 | P < 0.05 |
Rat placenta | -ve control | 0 | 0 | 4 | Â |
| Â | L-cysteine | 20 | 10.9 | 4 | Â |
| Â | Low O2 | 17.1 | 11.2 | 4 | NS |
Rat fetal membranes | -ve control | 0 | 0 | 4 | Â |
| Â | L-cysteine | 146 | 120 | 4 | Â |
| Â | Low O2 | 490 | 218 | 4 | P < 0.05 |
Human placenta | -ve control | 0 | 0 | 4 | Â |
| Â | L-cysteine | 200 | 102 | 4 | Â |
| Â | Low O2 | 397 | 326 | 4 | P < 0.05 |