On sexual dimorphism in immune function
نویسندگان
چکیده
منابع مشابه
On sexual dimorphism in immune function.
Sexual dimorphism in immune function is a common pattern in vertebrates and also in a number of invertebrates. Most often, females are more 'immunocompetent' than males. The underlying causes are explained by either the role of immunosuppressive substances, such as testosterone, or by fundamental differences in male and female life histories. Here, we investigate some of the main predictions of...
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S Vertebrates ” ( J. G. M. Thewissen , and S. Nummela , eds ) , pp. 211 – 224 . University of California Press , Berkeley . Pihlström , H. ( 2008 ). Comparative anatomy and physiology of chemical senses in aquatic mammals . In “ Sensory Evolution on the Threshold Adaptations in Secondarily Aquatic Vertebrates ” ( J. G. M. Thewissen , and S. Nummela , eds ) , pp. 95 – 109 . University of Califor...
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Several hypotheses have been proposed to explain the direction and extent of sexual size dimorphism in anurans (in which males are usually smaller than females) as a result of sexual selection. Here, we present an analysis to test the hypothesis that sexual dimorphism in anurans is largely a function of differences between the sexes in life-history strategies. Morphological and demographic data...
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The embryonic gonad of Drosophila melanogaster begins to display sexually dimorphic traits soon after its formation. Here we demonstrate the involvement of a wnt family ligand, wnt-2, in the induction of these sex-specific differences. We show that wnt-2 contributes to the survival of a male-specific population of somatic gonadal precursor cells (SGPs), the male-specific SGPs that are located a...
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Sex differences are well known to be determinants of development, health and disease. Epigenetic mechanisms are also known to differ between men and women through X-inactivation in females. We hypothesized that epigenetic sex differences may also result from sex hormone functions, in particular from long-lasting androgen programming. We aimed at investigating whether inactivation of the androge...
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ژورنال
عنوان ژورنال: Philosophical Transactions of the Royal Society B: Biological Sciences
سال: 2008
ISSN: 0962-8436,1471-2970
DOI: 10.1098/rstb.2008.0148