Genetic Polymorphisms in Glutathione (GSH-) Related Genes Affect the Plasmatic Hg/Whole Blood Hg Partitioning and the Distribution between Inorganic and Methylmercury Levels in Plasma Collected from a Fish-Eating Population

Table 1

General characteristics of riverside persons living in Amazonian region, Brazil.

	𝑁	Mean ± SD	Median	Range
Participants	88	—	—	—
Age (years)	88	41±16	41	15–80
Female/male	37/51	—	—	—
Body mass index	88	25±4.6	24	17–42
Portion fish/day^a	86	2.5±1.5	3.0	1.0–4.0
1	15	—	—	—
2	26	—	—	—
3	13	—	—	—
4	32	—	—	—
Smoking (yes)	88 (20)	—	—	—
Alcohol (yes)	88 (30)	—	—	—
THgB^b (µg/L)	88	37±21	29	8.4–83
THgP^c (µg/L)	88	10±4.3	9.6	2.4–27
THgP/THgB^f	88	0.33±0.15	0.29	0.13–0.91
MeHgP^d (µg/L)	88	4.3±2.9	3.6	0.67–18
IHgP^e (µg/L)	88	5.8±2.3	5.7	1.1–13

aOne portion of fish: 150–200 g; two participants did not answer the questionnaire concerning fish intake.
bTotal Hg in blood.
cTotal Hg in plasma.
dMethylmercury in plasma.
eInorganic Hg in plasma.
fRatio between total Hg in plasma and total Hg in blood.