Risk Assessment of Cnm-positive S. mutans in Stroke Survivors (RAMESSES) study

Principal Investigator

Masafumi Ihara
National Cerebral and Cardiovascular Center

Summary

Country Japan
Principal Investigator Masafumi Ihara
National Cerebral and Cardiovascular Center
Contact person (email) Satoshi Hosoki
Key publication/reference Hosoki S., Hattori Y., Saito, S., Takegami M., Tonomura S., Yamamoto Y., Ikeda S.,Hosomi N., Oishi N., Morita Y., Miyamoto Y., Nomura R., Nakano K., Ihara M. Risk Assessment of Cnm-positive Streptococcus Mutans in Stroke Survivors (RAMESSES): Protocol for a Multicenter Prospective Cohort Study. Front Neurol 12;13:816147, 2022
Years in which study conducted 2018 – 2024
Follow-up schedule  2 years
Sample  
Sample size (baseline sample)  230
Population:  Hospital based
Selection:  Recent stroke/TIA
Admit with previous stroke? Yes
Admit with TIA? Yes
Age range 40+
Number of centres 3 or more
Control group: number, population, selection NA
Assessment  
Assessment timings MoCa at baseline, 1 year and 2 years
CDR at baseline and 2 years
Functional tests Yes
Neuropsychological/cognitive tests MoCA at baseline, 1 yr and 2 yr
Dementia diagnosis CDR at baseline and at 2 years
MRI scans (type e.g., T1-
    weighted; when and how many)
FLAIR,DWI,MRA    
At baseline, after 1 year and after 2 years
Genetics data (e.g., GWAS, APOE) No (but blood sample collected)
Blood analysis Yes