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PubMed1997

[Nutrition integrators in sports].

The use or abuse of many preparations, available in the gymnasium or as top-bench drugs, used as nutritive integrators, determines both toxicological and deontological and especially sport medicine problems, because these products are also involved in the antidoping control. Therefore, this article cover the needs for providing a consultation and information manual for all sport operators in the delicate phase of drug-food integration of the athlete, not only to prevent and restrict the doping phenomenon, but also for health-preservation of the athlete.

Adolescent↗

PubMedDate not supplied

Sperm count suppression without endocrine dysfunction in lead-exposed men.

To determine if increased lead absorption was associated with sperm count suppression or perterbation of the hypothalamopituitary system, we compared battery workers (N = 18), who were exposed to high airborne lead levels, with cement workers (N = 18), who were exposed to ambient lead levels. Blood lead, urinary lead, semen lead, and zinc protoporphyrin concentrations were markedly elevated (p less than .001) in battery workers. Battery workers had a significantly shifted (p less than .025) frequency distribution of sperm count (median count, 45 vs. 73 X 10(6) cells/cc, respectively). There were no significant differences between the two groups in mean follicle-stimulating hormone, testosterone, prolactin, luteinizing hormone, or total neutral 17-ketosteroid levels. Potential confounding factors (alcohol, cigarette, and coffee consumption, frequency of intercourse, and days of abstinence prior to semen donation) were not significantly different between the two groups. These results suggest a direct toxic effect of increased lead absorption on sperm production or transport in man.

Alcohol Drinking↗

PubMedDate not supplied

Sperm count suppression without endocrine dysfunction in lead-exposed men.

To determine if increased lead absorption was associated with sperm count suppression or perterbation of the hypothalamopituitary system, we compared battery workers (N = 18), who were exposed to high airborne lead levels, with cement workers (N = 18), who were exposed to ambient lead levels. Blood lead, urinary lead, semen lead, and zinc protoporphyrin concentrations were markedly elevated (p less than .001) in battery workers. Battery workers had a significantly shifted (p less than .025) frequency distribution of sperm count (median count, 45 vs. 73 X 10(6) cells/cc, respectively). There were no significant differences between the two groups in mean follicle-stimulating hormone, testosterone, prolactin, luteinizing hormone, or total neutral 17-ketosteroid levels. Potential confounding factors (alcohol, cigarette, and coffee consumption, frequency of intercourse, and days of abstinence prior to semen donation) were not significantly different between the two groups. These results suggest a direct toxic effect of increased lead absorption on sperm production or transport in man.

Adult↗