tailieunhanh - báo cáo hóa học: " Fertility disorders and pregnancy complications in hairdressers - a systematic review"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Fertility disorders and pregnancy complications in hairdressers - a systematic review | Peters et al. Journal of Occupational Medicine and Toxicology 2010 5 24 http content 5 1 24 JOURNAL OF OCCUPATIONAL MEDICINE AND TOXICOLOGY REVIEW Open Access Fertility disorders and pregnancy complications in hairdressers - a systematic review 1 1 2 1 3 1 Claudia Peters Melanie Harling Madeleine Dulon Anja Schablon José Torres Costa Albert Nienhaus Abstract Background Hairdressers often come into contact with various chemical substances which can be found in hair care products for washing dyeing bleaching styling spraying and perming. This exposure can impair health and may be present as skin and respiratory diseases. Effects on reproduction have long been discussed in the literature. Method A systematic review has been prepared in which publications from 1990 to 2010 were considered in order to specifically investigate the effects on fertility and pregnancy. The results of the studies were summarised separately in accordance with the type of study and the examined events. Results A total of 2 reviews and 26 original studies on fertility disorders and pregnancy complications in hairdressers were found in the relevant databases as well as through hand searches of reference lists. Nineteen different outcomes concerning fertility and pregnancy are analysed in the 26 original studies. Most studies looked into malformation n 7 particularly orofacial cleft. Two of them found statistically significant increased risks compared to five that did not. Small for gestational age SGA low birth weight LBW and spontaneous abortions were frequently investigated but found different results. Taken together the studies are inconsistent so that no clear statements on an association between the exposure as a hairdresser and the effect on reproduction are possible. The different authors describe increased risks of infertility congenital malformations SGA LBW cancer in childhood as well as effects from single substances. Conclusion On the basis of the identified .