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دسته بندی:
داده های بزرگ - big data
سال انتشار:
2018
عنوان انگلیسی مقاله:
Seasonal variation of semen parameters correlates with environmental temperature and air pollution: A big data analysis over 6 years
ترجمه فارسی عنوان مقاله:
تنوع فصلی پارامترهای مایع منی با دمای محیط و آلودگی هوا ارتباط دارد: تجزیه و تحلیل داده های بزرگ بیش از 6 سال
منبع:
Sciencedirect - Elsevier - Environmental Pollution, 235 (2018) 806-813: doi:10:1016/j:envpol:2018:01:021
نویسنده:
Daniele Santi a, b, *, Elisa Magnani a, b, Marco Michelangeli c, Roberto Grassi c, Barbara Vecchi c, Gioia Pedroni a, Laura Roli d, Maria Cristina De Santis d, Enrica Baraldi d, Monica Setti e, Tommaso Trenti d, Manuela Simoni a, b
چکیده انگلیسی:
Background: Male fertility is progressively declining in many developed countries, but the relationship
between male infertility and environmental factors is still unclear.
Objectives: To assess the influence of environmental temperature and air pollution on semen parameters,
using a big-data approach.
Methods: A big data analysis of parameters related to 5131 men, living in a province of Northern Italy and
undergoing semen analyses between January 2010 and March 2016 was performed. Ambient tempera
ture was recorded on the day of analysis and the 90 days prior to the analysis and the average value of
particulate matter (PM) and NO2 in the year of the test. All data were acquired by geocoding patients
residential address. A data warehouse containing 990,904,591 data was generated and analysed by
multiple regressions.
Results: 5573 semen analyses were collected. Both maximum and minimum temperatures registered on
the day of collection were inversely related to total sperm number (p < .001), non-progressive motility
(NPrM) (p < .005) and normal forms (p < .001). Results were confirmed considering temperature in the
30 and 60 days before collection, but not in the 90 days before collection. Total sperm number was lower
in summer/autumn (p < .001) and was inversely related with daylight duration (p < .001). PM10 and
PM2.5 were inversely related to PrM (p < .001 and p < .005) and abnormal forms (p < .001).
Conclusions: This is the first evaluation of the relationship between male fertility-related parameters and
environment using a big-data approach. A seasonal change in semen parameters was found, with a
fluctuation related to both temperature and daylight duration. A negative correlation between air
pollution and semen quality is suggested. Such seasonal and environmental associations should be
considered when assessing changes of male fertility-related parameters over time.
Keywords: Male infertility ، Semen analysis ، Environmental temperature ، Air pollution
قیمت: رایگان
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