| Title: | Electrophysiological Recordings from the Olfactory Epithelium and Human Brain in Response to Stimulation with HLA Related Peptides |
| Author(s): | Lessmann ME; Guducu C; Ibarlucea B; Hummel T; |
| Address: | "Smell and Taste Clinic, Department of Otorhinolaryngology, Technische Universitat Dresden, Dresden, Germany. Electronic address: me.lessmann@web.de. Department of Biophysics, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey. Institute of Materials Science, Max Bergmann Center of Biomaterials, and Center for Advancing Electronics Dresden (cfaed), Technische Universitat Dresden, Dresden, Germany. Smell and Taste Clinic, Department of Otorhinolaryngology, Technische Universitat Dresden, Dresden, Germany" |
| DOI: | 10.1016/j.neuroscience.2021.08.005 |
| ISSN/ISBN: | 1873-7544 (Electronic) 0306-4522 (Linking) |
| Abstract: | "In many species, social communication and mate choice are influenced by olfactory cues associated with the major histocompatibility complex (MHC). It has been reported that humans also respond to olfactory signals related to the human MHC-equivalent, the Human Leucocyte Antigen (HLA)-System, and exhibit an olfactory-mediated preference for potential mating partners with a dissimilar, disassortative, HLA-type compared to their own. The aim of this study was to investigate whether HLA-associated peptides, presented as volatile cues, elicit neuronal responses at the receptors in the human olfactory epithelium and can be consciously perceived. To this end the discrimination ability for peptides was tested in a 3-alternative forced choice model. Furthermore electro-olfactograms of the olfactory epithelium and EEG-derived chemosensory event related potentials were recorded using precisely controlled olfactometric stimulation with peptides and control odors. Based on responses from 52 young, healthy participants the peptides could not be discriminated and the electrophysiological signals provided no evidence for a specific response to the peptides which was in contrast to the control odors. In conclusion, within the current setup the results suggest that HLA-associated peptides do not produce specific olfactory activation in humans" |
| Keywords: | Brain Humans *Odorants Olfactory Mucosa Peptides *Smell electro-olfactogram odor peptide pheromone smell;neuroscience; |
| Notes: | "MedlineLessmann, Marie-Elisabeth Guducu, Cagdas Ibarlucea, Bergoi Hummel, Thomas eng 2021/08/19 Neuroscience. 2021 Oct 1; 473:44-51. doi: 10.1016/j.neuroscience.2021.08.005. Epub 2021 Aug 15" |
