Do differences in Toxoplasma prevalence influence global variation in secondary sex ratio? Preliminary ecological regression study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F16%3A10322057" target="_blank" >RIV/00216208:11310/16:10322057 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11240/16:10322057

Výsledek na webu

<a href="http://dx.doi.org/10.1017/S0031182016000597" target="_blank" >http://dx.doi.org/10.1017/S0031182016000597</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1017/S0031182016000597" target="_blank" >10.1017/S0031182016000597</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Do differences in Toxoplasma prevalence influence global variation in secondary sex ratio? Preliminary ecological regression study

Popis výsledku v původním jazyce

Sex of the fetus is genetically determined such that an equal number of sons and daughters are born in large populations. However, the ratio of female to male births across human populations varies significantly. Many factors have been implicated in this. The theory that natural selection should favour female offspring under suboptimal environmental conditions implies that pathogens may affect secondary sex ratio (ratio of male to female births). Using regression models containing 13 potential confounding factors, we have found that variation of the secondary sex ratio can be predicted by seroprevalence of Toxoplasma across 94 populations distributed across African, American, Asian, and European continent. Toxoplasma seroprevalence was the third strongest predictor of secondary sex ratio, β = -.097, p < .01, after son preference, β = .261, p < .05, and fertility, β = -.145, p < .001. Our preliminary results suggest that Toxoplasma gondii infection could be one of the most important environmental factors influencing the global variation of offspring sex ratio in humans. The effect of latent toxoplasmosis on public health could be much more serious than it is usually supposed to be.

Název v anglickém jazyce

Do differences in Toxoplasma prevalence influence global variation in secondary sex ratio? Preliminary ecological regression study

Popis výsledku anglicky

Sex of the fetus is genetically determined such that an equal number of sons and daughters are born in large populations. However, the ratio of female to male births across human populations varies significantly. Many factors have been implicated in this. The theory that natural selection should favour female offspring under suboptimal environmental conditions implies that pathogens may affect secondary sex ratio (ratio of male to female births). Using regression models containing 13 potential confounding factors, we have found that variation of the secondary sex ratio can be predicted by seroprevalence of Toxoplasma across 94 populations distributed across African, American, Asian, and European continent. Toxoplasma seroprevalence was the third strongest predictor of secondary sex ratio, β = -.097, p < .01, after son preference, β = .261, p < .05, and fertility, β = -.145, p < .001. Our preliminary results suggest that Toxoplasma gondii infection could be one of the most important environmental factors influencing the global variation of offspring sex ratio in humans. The effect of latent toxoplasmosis on public health could be much more serious than it is usually supposed to be.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

AC - Archeologie, antropologie, etnologie

OECD FORD obor

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Projekt

<a href="/cs/project/GA16-20958S" target="_blank" >GA16-20958S: Role chovu koček a psů a některých s nimi asociovaných nákaz při vzniku klinických a subklinických forem deprese, OCD, fobií a psychóz</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Parasitology

ISSN

0031-1820

e-ISSN

—

Svazek periodika

143

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

1193-1203

Kód UT WoS článku

000379983300010

EID výsledku v databázi Scopus

2-s2.0-84976617792