PMID- 36867595 OWN - NLM STAT- MEDLINE DCOM- 20230307 LR - 20230420 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 18 IP - 3 DP - 2023 TI - Sex differences in mild vascular cognitive impairment: A multimodal transcranial magnetic stimulation study. PG - e0282751 LID - 10.1371/journal.pone.0282751 [doi] LID - e0282751 AB - BACKGROUND: Sex differences in vascular cognitive impairment (VCI) at risk for future dementia are still debatable. Transcranial magnetic stimulation (TMS) is used to evaluate cortical excitability and the underlying transmission pathways, although a direct comparison between males and females with mild VCI is lacking. METHODS: Sixty patients (33 females) underwent clinical, psychopathological, functional, and TMS assessment. Measures of interest consisted of: resting motor threshold, latency of motor evoked potentials (MEPs), contralateral silent period, amplitude ratio, central motor conduction time (CMCT), including the F wave technique (CMCT-F), short-interval intracortical inhibition (SICI), intracortical facilitation, and short-latency afferent inhibition, at different interstimulus intervals (ISIs). RESULTS: Males and females were comparable for age, education, vascular burden, and neuropsychiatric symptoms. Males scored worse at global cognitive tests, executive functioning, and independence scales. MEP latency was significantly longer in males, from both sides, as well CMCT and CMCT-F from the left hemisphere; a lower SICI at ISI of 3 ms from the right hemisphere was also found. After correction for demographic and anthropometric features, the effect of sex remained statistically significant for MEP latency, bilaterally, and for CMCT-F and SICI. The presence of diabetes, MEP latency bilaterally, and both CMCT and CMCT-F from the right hemisphere inversely correlated with executive functioning, whereas TMS did not correlate with vascular burden. CONCLUSIONS: We confirm the worse cognitive profile and functional status of males with mild VCI compared to females and first highlight sex-specific changes in intracortical and cortico-spinal excitability to multimodal TMS in this population. This points to some TMS measures as potential markers of cognitive impairment, as well as targets for new drugs and neuromodulation therapies. CI - Copyright: (c) 2023 Cantone et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. FAU - Cantone, Mariagiovanna AU - Cantone M AUID- ORCID: 0000-0002-9072-4971 AD - Neurology Unit, University Hospital Policlinico "G. Rodolico-San Marco", Catania, Italy. FAU - Fisicaro, Francesco AU - Fisicaro F AD - Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy. FAU - Ferri, Raffaele AU - Ferri R AD - Clinical Neurophysiology Research Unit, Oasi Research Institute-IRCCS, Troina, Italy. FAU - Bella, Rita AU - Bella R AD - Department of Medical and Surgical Sciences and Advanced Technologies, University of Catania, Catania, Italy. FAU - Pennisi, Giovanni AU - Pennisi G AD - Clinical Neurophysiology Research Unit, Oasi Research Institute-IRCCS, Troina, Italy. FAU - Lanza, Giuseppe AU - Lanza G AUID- ORCID: 0000-0002-5659-662X AD - Clinical Neurophysiology Research Unit, Oasi Research Institute-IRCCS, Troina, Italy. AD - Department of Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy. FAU - Pennisi, Manuela AU - Pennisi M AD - Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230303 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 15580-20-8 (1-cyclohexyl-3-(2-(4-morpholinyl)ethyl)carbodiimide) SB - IM MH - Humans MH - Female MH - Male MH - *Transcranial Magnetic Stimulation MH - Sex Characteristics MH - *Cognitive Dysfunction MH - Anthropometry PMC - PMC9983846 COIS- The authors have declared that no competing interests exist. EDAT- 2023/03/04 06:00 MHDA- 2023/03/08 06:00 PMCR- 2023/03/03 CRDT- 2023/03/03 13:32 PHST- 2022/10/11 00:00 [received] PHST- 2023/02/21 00:00 [accepted] PHST- 2023/03/03 13:32 [entrez] PHST- 2023/03/04 06:00 [pubmed] PHST- 2023/03/08 06:00 [medline] PHST- 2023/03/03 00:00 [pmc-release] AID - PONE-D-22-28100 [pii] AID - 10.1371/journal.pone.0282751 [doi] PST - epublish SO - PLoS One. 2023 Mar 3;18(3):e0282751. doi: 10.1371/journal.pone.0282751. eCollection 2023.