[Show abstract][Hide abstract] ABSTRACT: The production and widespread use of synthetic chemicals since the 1940s have resulted in ubiquitous contamination of fish, wildlife and human populations. Since the 1960s, observers have documented major damage to wildlife reproduction across the globe, and subsequently, damage to reproductive health in exposed humans as well. The sex ratio in human communities and populations can be readily measured to ascertain whether reproductive effects, such as subtle birth defects of the reproductive tract caused by exposures to chemicals, might be occurring. Male to female sex ratios appear to be declining in populations in several parts of the globe, possibly as a result of prenatal exposures to chemicals. Sex ratio data for communities with unusual occupational or environmental exposures can be compiled using traditional epidemiological techniques in pursuit of environmental justice. Local, regional and national population health researchers and occupational hygienists can use health statistics to examine sex ratios as sentinel health events that might portend patterns of subtle structural birth defects of the reproductive tract and functional deficits in neurodevelopment.
International journal of occupational and environmental health 04/2008; 14(2):138-43. DOI:10.1179/oeh.2008.14.2.138 · 1.37 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: To compare dietary habits in normospermic and oligoasthenoteratospermic patients attending a reproductive assisted clinic.
An observational, analytical case-control study.
Private fertility clinics.
Thirty men with poor semen quality (cases) and 31 normospermic control couples attending our fertility clinics.
We recorded dietary habits and food consumption using a food frequency questionnaire adapted to meet specific study objectives. Analysis of semen parameters, hormone levels, Y microdeletions, and karyotypes were also carried out.
Frequency of intake food items were registered in a scale with nine categories ranging from no consumption to repeated daily consumption.
Controls had a higher intake of skimmed milk, shellfish, tomatoes, and lettuce, and cases consumed more yogurt, meat products, and potatoes. In the logistic regression model cases had lower intake of lettuce and tomatoes, fruits (apricots and peaches), and significantly higher intake of dairy and meat processed products.
Frequent intake of lipophilic foods like meat products or milk may negatively affect semen quality in humans, whereas some fruits or vegetables may maintain or improve semen quality.
Fertility and sterility 04/2008; 91(3):812-8. DOI:10.1016/j.fertnstert.2008.01.020 · 4.59 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: Human semen quality may be declining due to environmental pollutants, occupational exposures or changes in lifestyle. Nonetheless, we still know little about the impact of those factors on male fertility. Some heavy metals, volatile organic compounds or xenoestrogens may compromise reproductive male function. This process could take place along the human life cycle and not only in certain stages of development. We review the main factors that affect human male fertility and their possible influence in current human reproduction.
The Open Reproductive Science Journal 05/2008; 1(1). DOI:10.2174/1874255600801010016
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