Table 6.

Changes in Metal Concentrations, Circulating Prolactin Concentrations and Hypothalamic TH Levels after 28 weeks of Exposure to Different Welding Fume Particulate.

	Tissue	Al	Fe	Mn	Zn	Prl	TH	Epi.	Pit wt	Sperm count	Testosterone
MMA-HS	Pit	–	36%↓	224%↑	16%↑	53%↓	–	–	23%↑	38%↓	–
GMA-MS	Pit	87%↓	16%↓	–	21%↑	–	32%↓	–	–	45%↓	348%↑
MnCl2	Pit	–	–	242%↑	26%↑	–	–	38%↓	31%↓	77%↓	–

All changes listed are significantly different and expressed as a percent change from saline control. Prl: prolactin, Epi wt: epididymis wt, TH: tyrosine hydroxylase, Pit wt: pituitary wt