Figure 8.
Uptake of inorganic mercury (Hg2+) as a conjugate of homocysteine (Hcy-S-Hg-S-Hcy) in the presence of unlabeled homocystine. ARPE-19 cells were exposed to 5 μM Hcy-S-Hg-S-Hcy for 30 min at 37°C in the presence of NaCl. Results are presented as means ± standard error. Data represent two experiments performed in triplicate. +, ++, +++, significantly (p < 0.05) from the mean for cells of the same treatment group at the preceding concentration.