Gold in the male reproductive tract of rat: A chronobiological study

In a 24 hour study, 10 adult male albino rats (total=60) were sacrificed at every four hour starting from 00:00 hours. Reproductive tissues and ndash; testis, epididymis (caput, corpus, cauda), vas deference, seminal vesicle, prostate (ventral, dorso ventral) and coagulating glands were dissected out and the level of gold was measured in each tissue by employing atomic absorption spectrophotometry. Level of gold differed showing peaks and nadirs at different timings, like dorso ventral prostate gland showed the highest amount (3.31 and micro;g per gram tissue) at 08:00 hrs and the lowest (0.03 and micro;g per gram) at 00:00 hrs. Fluctuation observed in the level of gold is discussed in terms of chronobiology.