Offspring sex ratios as an index of pollution hazard in residential environments.
نویسندگان
چکیده
منابع مشابه
Sex ratios of births, mortality, and air pollution: can measuring the sex ratios of births help to identify health hazards from air pollution in industrial environments?
OBJECTIVES To compare the sex ratios of births and mortality in 12 Scottish localities with residential exposure to pollution from a variety of industrial sources with those in 12 nearby and comparable localities without such exposure. METHODS 24 localities were defined by postcode sectors. SMRs for lung cancer and for all causes of death and sex ratios of births were calculated for each loca...
متن کاملOffspring sex ratios among male tobacco smokers in Khartoum, Sudan.
OBJECTIVES To explore any association between paternal tobacco smoking and the offspring secondary sex ratio, as well as the effect of duration and intensity of smoking on gender ratio. METHODS The cross-sectional study was conducted around major public areas within Khartoum, Sudan, between August and September 2008 and involved 458 married Sudanese males with offsprings. The sample consisted...
متن کاملFifty : Fifty Offspring Sex Ratios in Savannah Sparrows
that natural selection should favor the ability of animals to modify the sex ratio of their offspring whenever the net fi tness benefi ts of producing sons or daughters vary as a function of parental condition. For example, when males compete strongly for females and have greater variance in reproductive success than females, parents in good condition should invest more in sons. Parents in poor...
متن کاملOffspring sex ratios at birth as markers of paternal endocrine disruption.
There is good evidence that paternal (and maternal) hormone levels at the time of conception are associated with offspring sex ratios (proportions male) at birth. The mechanisms underlying this association (pre- or postzygotic) are not of primary relevance here. When people are exposed to endocrine-disrupting agents, these agents may have different hormonal effects on men and women. So, if endo...
متن کاملParental exposure to dioxin and offspring sex ratios.
I would like to respond to the comments of Jongbloet et al. (1) on the data of Mocarelli et al. (2). Mocarelli et al. (2) reported on the offspring sex ratios (proportions male) following the explosion at Seveso, Italy, that released 2,3,7,8-tetrachlorodibenzo-pdioxin (TCDD, dioxin) into the environment. Mocarelli et al. (2) categorized matings into the four possible combinations by sex and exp...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Occupational and Environmental Medicine
سال: 1995
ISSN: 1351-0711
DOI: 10.1136/oem.52.9.622