Contents of chemical elements in stomach during prenatal development: different age-dependent dynamical changes and their significance

Table 2 Contents of essential elements in fetal stomachs, with comparison to those in adult[2] (µg/g dry weight)

Month-age	4	5	6	7	8	9	10	Adult
Cu	47.33	37.26	38.98	37.67	38.28	27.65	32.20	4.95
	13.95 (6)	14.74 (19)	9.02 (14)	16.44 (9)	17.42 (7)	8.53 (6)	8.43 (5)	1.52
Zn	310.7	311.1	279.6	215.2	150.6	136.0	120.5	71.87
	38.8 (6)	124.6 (19)	50.3 (14)	44.7 (9)	81.2 (7)	34.9 (6)	12.6 (5)	15.42
Fe	765.1	677.0	550.9	503.1	559.8	530.1	534.3	138.6
	188.5 (6)	257.3 (19)	158.1 (14)	147.4 (9)	98.9 (7)	260.0 (6)	131.3 (5)	61.4
Mn	3.266	2.849	2.833	2.918	3.068	2.370	2.547	2.440
	0.797 (6)	0.881 (19)	1.015 (14)	0.934 (9)	0.859 (7)	0.387 (6)	0.512 (5)	1.116
Se	-	0.565	0.553	0.539	0.471	0.468	0.411
	0.042 (2)	0.186 (10)	0.161 (9)	0.240 (7)	0.089 (6)	0.137 (5)
Co	0.575	0.613	0.711	0.709	0.648	0.595	0.569	0.060
	0.380 (6)	0.292 (19)	0.320 (14)	0.547 (9)	0.259 (7)	0.229 (6)	0.188 (5)	0.377
Cr	0.595	0.565	0.513	0.510	0.359	0.302	0.325	3.958
	0.291 (6)	0.309 (19)	0.396 (14)	0.397 (9)	0.241 (7)	0.154 (6)	0.181 (5)	6.511
Ni	0.511	0.898	0.517	0.483	0.780	0.530	0.211	0.662
	0.254 (6)	1.551 (19)	0.584 (14)	0.302 (9)	0.293 (7)	0.426 (6)	0.096 (5)	0.556
Sr	1.231	0.785	0.922	0.735	0.651	0.374	0.564
	0.554 (6)	0.394 (19)	0.502 (14)	0.238 (9)	0.236 (7)	0.170 (6)	0.178 (5)
V	0.707	0.500	0.702	0.581	0.640	0.556	0.327
	0.521 (6)	0.386 (19)	0.524 (14)	0.170 (9)	0.261 (7)	0.413 (6)	0.173 (5)