Early exposure to lead (Pb) has been associated with an elevated risk of developing neurodegenerative diseases. There is evidence that neuronal damage in chronic Pb exposure can be caused by the convergence of glial damage. Apoptosis may be a possible mechanism of Pb-induced cell death in the central nervous system.
View Article and Find Full Text PDFThe objective of this study was to determine whether reproductive seasonality of local well-fed female goats from subtropical Mexico (26 degrees N) can be controlled by photoperiod. The control group (n=12) remained in an open pen under natural photoperiod variations. The two experimental groups (n=8 each) were placed in light-proof rooms and exposed for 2 yr to alternations of 3 months of long days and 3 months of short days.
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