Fiziksel ve kimyasal etkenlere maruziyet doğumlardaki cinsiyet oranını etkileyebilir mi?

Toplumun üreme sağlığının gözlenmesi açısından, doğumlardaki cinsiyet oranı (erkek çocuk sayısı/kız çocuk sayısı) önemli bir değişkendir. Doğum cinsiyet oranlarındaki farklılıklar ve meydana gelen değişimler, araştırmacılar için uzun yıllardan beri merak konusu olmuştur. Zaman içerisinde bir veya birden çok kimyasal ve fiziksel etkenlere maruziyet sonrası küçük bir grupta gözlemlenen farklılık, o grubun ait olduğu popülasyon ile karşılaştırılmış ve ilginç sonuçların ortaya çıktığı bulunmuştur. Buna karşın, cinsiyet oranının değişmesini açıklayabilmek için ileri sürülen birçok hipotez ispatlanamamıştır. Çevresel endüstriyel kirleticiler (poliklorobifeniller, triklorodibenzodioksin, diklorodietildikloroetilen, ağır metaller), fizikokimyasal (radyasyon) ve fiziksel (yüksek sıcaklık, G-kuvveti) etkiler ve yüksek konsantrasyonlarda bora maruziyetin cinsiyet oranı üzerine etkilerinin araştırıldığı çalışmalar mevcuttur. Bu derlemede, cinsiyet oranını etkileyebileceği düşünülen bazı durumlardan bahsedilmiştir

Can exposure to chemicals and physical factors alter the sex ratio at birth?

In terms of observing the reproductive health of the population, the sex ratio at birth (number of male children/number of female children) is an important factor. Differences in birth sex ratios and changes in the genres have been a curiosity for researchers for many years. The difference observed in a small group after exposure to one or more chemical and physical factors over time was compared to the population to which that group belonged and interesting results were found. However, many hypotheses to explain the changing sex ratio have not been proven. There are studies investigating the effects of environmental industrial pollutants (polychlorobiphenyls, tetrachlorodibenzo-p-dioxin, dichlorodiphenyldichloroethylene, heavy metals), physicochemical (radiation) and physical (high temperature, G-force) and high concentrations of boron exposure on the sex ratio. In this review, some cases that are thought to affect the sex ratio have been mentioned

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