PMID- 35886975 OWN - NLM STAT- MEDLINE DCOM- 20220728 LR - 20220731 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 23 IP - 14 DP - 2022 Jul 10 TI - Differential Cellular Balance of Olfactory and Vomeronasal Epithelia in a Transgenic BACHD Rat Model of Huntington's Disease. LID - 10.3390/ijms23147625 [doi] LID - 7625 AB - Background. For neurodegenerative diseases such as Huntington's disease (HD), early diagnosis is essential to treat patients and delay symptoms. Impaired olfaction, as observed as an early symptom in Parkinson s disease, may also constitute a key symptom in HD. However, there are few reports on olfactory deficits in HD. Therefore, we aimed to investigate, in a transgenic rat model of HD: (1) whether general olfactory impairment exists and (2) whether there are disease-specific dynamics of olfactory dysfunction when the vomeronasal (VNE) and main olfactory epithelium (MOE) are compared. Methods. We used male rats of transgenic line 22 (TG22) of the bacterial artificial chromosome Huntington disease model (BACHD), aged 3 days or 6 months. Cell proliferation, apoptosis and macrophage activity were examined with immunohistochemistry in the VNE and MOE. Results. No differences were observed in cellular parameters in the VNE between the groups. However, the MOE of the 6-month-old HD animals showed a significantly increased number of mature olfactory receptor neurons. Other cellular parameters were not affected. Conclusions. The results obtained in the TG22 line suggest a relative stability in the VNE, whereas the MOE seems at least temporarily affected. FAU - Krysewski, Lina-Marielle AU - Krysewski LM AUID- ORCID: 0000-0003-2363-2302 AD - Department of Anatomy, Rostock University Medical Centre, 18057 Rostock, Germany. FAU - Power Guerra, Nicole AU - Power Guerra N AD - Department of Anatomy, Rostock University Medical Centre, 18057 Rostock, Germany. AD - Rudolf-Zenker-Institute for Experimental Surgery, Rostock University Medical Centre, 18057 Rostock, Germany. AD - Smell and Taste Clinic, Department of Otorhinolaryngology, TU Dresden, 01034 Dresden, Germany. FAU - Glatzel, Annika AU - Glatzel A AD - Department of Anatomy, Rostock University Medical Centre, 18057 Rostock, Germany. FAU - Holzmann, Carsten AU - Holzmann C AUID- ORCID: 0000-0001-7977-9093 AD - Institute of Medical Genetics, Rostock University Medical Centre, 18057 Rostock, Germany. FAU - Antipova, Veronica AU - Antipova V AUID- ORCID: 0000-0002-7631-9080 AD - Department of Anatomy, Rostock University Medical Centre, 18057 Rostock, Germany. AD - Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Macroscopic and Clinical Anatomy, Medical University of Graz, 8010 Graz, Austria. FAU - Schmitt, Oliver AU - Schmitt O AD - Department of Anatomy, Rostock University Medical Centre, 18057 Rostock, Germany. AD - Department of Anatomy, Medical School Hamburg, University of Applied Sciences and Medical University, 20457 Hamburg, Germany. FAU - Yu-Taeger, Libo AU - Yu-Taeger L AD - Department of Human Genetics, Ruhr University Bochum, 44780 Bochum, Germany. FAU - Nguyen, Huu Phuc AU - Nguyen HP AUID- ORCID: 0000-0001-6139-788X AD - Department of Human Genetics, Ruhr University Bochum, 44780 Bochum, Germany. FAU - Wree, Andreas AU - Wree A AD - Department of Anatomy, Rostock University Medical Centre, 18057 Rostock, Germany. FAU - Witt, Martin AU - Witt M AUID- ORCID: 0000-0002-4538-877X AD - Department of Anatomy, Rostock University Medical Centre, 18057 Rostock, Germany. LA - eng GR - 889046 and 889052/FORUN (internal University grant)/ PT - Journal Article DEP - 20220710 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 SB - IM MH - Animals MH - Chromosomes, Artificial, Bacterial MH - Disease Models, Animal MH - *Huntington Disease/metabolism MH - Male MH - *Olfaction Disorders/metabolism MH - Olfactory Mucosa/metabolism MH - *Olfactory Receptor Neurons/metabolism MH - Rats MH - Rats, Transgenic PMC - PMC9316117 OTO - NOTNLM OT - Huntington's disease OT - buried pellet test OT - main olfactory epithelium OT - olfaction OT - transgenic rat model OT - vomeronasal organ COIS- The authors declare no conflict of interest. EDAT- 2022/07/28 06:00 MHDA- 2022/07/29 06:00 PMCR- 2022/07/10 CRDT- 2022/07/27 01:22 PHST- 2022/05/24 00:00 [received] PHST- 2022/07/05 00:00 [revised] PHST- 2022/07/05 00:00 [accepted] PHST- 2022/07/27 01:22 [entrez] PHST- 2022/07/28 06:00 [pubmed] PHST- 2022/07/29 06:00 [medline] PHST- 2022/07/10 00:00 [pmc-release] AID - ijms23147625 [pii] AID - ijms-23-07625 [pii] AID - 10.3390/ijms23147625 [doi] PST - epublish SO - Int J Mol Sci. 2022 Jul 10;23(14):7625. doi: 10.3390/ijms23147625.