Journal Article10.1023/A:1026431303879
The major histocompatibility complex and the chemosensory signalling of individuality in humans
Frank Eggert,Dagmar Luszyk,Klaus Haberkorn,Birgit Wobst,Otto Vostrowsky,E. Westphal,Hans Jürgen Bestmann,Wolfgang Müller-Ruchholtz,Roman Ferstl +8 more
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TL;DR: Results show that a profile of some specific components, as well as a few ubiquitous volatiles, constitutes MHC‐associated odor signals in humans and indicates that the urine odors of humans are associated with the MHC.
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Abstract: The chemosensory identity of mice and rats is determined partly by polymorphic genes of the major histocompatibility complex (MHC). In inbred strains of mice, as well as in seminatural populations, MHC‐associated mating preferences selectively influence reproductive success, thus serving to promote heterozygocity in the MHC. In order to determine whether MHC‐associated chemosignals are present in humans, two studies were conducted. In a first study, olfactory identification of MHC‐associated chemosignals was conducted on 12 trained rats' responses to the urine odors of humans. In a second study, MHC‐associated olfactory cues in humans were analyzed by means of gas chromatography. The results indicate that the urine odors of humans are associated with the MHC and demonstrate that the profile of volatile components in the urine odors shows some association with the MHC. Furthermore, results show that a profile of some specific components, as well as a few ubiquitous volatiles, constitutes MHC‐associated odor signals in humans.
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