Unexplained repeated pregnancy loss is associated with an altered perception of male odors and differences in brain regions that process smells.
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http://dx.doi.org/10.7554/eLife.62534 | DOI Listing |
Diseases
December 2024
Department of Clinical Physiology, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
Background: Following the Coronavirus Disease 2019 (COVID-19) pandemic, many patients have reported ongoing smell and taste issues. This study aims to investigate the prevalence of olfactory and gustatory dysfunction among patients with a history of COVID-19 and its association with autonomic dysfunction and disability.
Patient And Methods: This case-control study included a COVID-19 group (n = 82) and a control group (n = 82).
Acad Radiol
January 2025
Department of Otolaryngology and Head and Neck Surgery, School of Medicine, Otorhinolaryngology Research Center, Guilan University of Medical Sciences, Rasht, Iran (M.H.D., S.N.). Electronic address:
Background: While many COVID-19-induced anosmia patients recover their sense of smell within a few months, a substantial number of them continue to experience olfactory impairment. In our primary study, the metabolic patterns in orbitofrontal cortex (OFC) were observed to exhibit more alterations than other regions. Hence, this study specifically probes into alterations within OFC region in subjects with persistent COVID-19-induced anosmia.
View Article and Find Full Text PDFBrain Commun
January 2025
Department of Clinical Medicine, Aarhus University Hospital, Aarhus N, 8200 Aarhus, Denmark.
Asymmetric dopaminergic degeneration of the striatum is a characteristic feature of Parkinson's disease, associated with right-left asymmetry in motor function. As such, studying asymmetry provides insights into progressive neurodegeneration between cerebral hemispheres. Given the impact of Lewy pathology on various neurotransmitter systems beyond the dopaminergic, it may be that other neuronal systems in the predominantly affected hemisphere are similarly affected.
View Article and Find Full Text PDFGeriatr Psychol Neuropsychiatr Vieil
December 2024
Odors are known to entertain a special link with memory: once the meaning of an odor has been learned, it naturally acts as a retrieval cue of the learning context, along with the emotions and behaviors associated with it. The existence of this link has for several years inspired the study of olfactory function in Alzheimer's disease (AD), known for the memory disorders it causes. The aim of this review is to summarize the current scientific knowledge on the almost paradoxical dual role played by odors in the management of AD, as both screening and therapeutic tools.
View Article and Find Full Text PDFCNS Neurosci Ther
January 2025
Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China.
Objectives: Parkinson's disease (PD) is characterized by olfactory dysfunction (OD) and cognitive deficits at its early stages, yet the link between OD and cognitive deficits is also not well-understood. This study aims to examine the changes in the olfactory network associated with OD and their relationship with cognitive function in de novo PD patients.
Methods: A total of 116 drug-naïve PD patients and 51 healthy controls (HCs) were recruited for this study.
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