Study of Dry Beriberi in Mayotte, Comoro Archipelago (MABECO)
Recruitment status was: Recruiting
|Study Design:||Observational Model: Case Control
Time Perspective: Prospective
|Official Title:||Determination Study of Dry Beriberi in Patients Native to the Comoro Archipelago, in Mayotte (MABECO).|
- Mutations on one of the alleles of the promoter of the gene TKTL1 (transketolase-like gene) in the homozygous state in the patients and not in the controls (heterozygotes or not carrier of the mutation). [ Time Frame: day 1 ]
- To evaluate food intakes in vitamin B1 and anti-thiamine factors (polyphenols). [ Time Frame: day 1 ]
- To evaluate Thiamine biological status (blood thiamine, erythrocyte transketolase activity and the thiamine pyrophosphate effect) [ Time Frame: day 1 ]
Biospecimen Retention: Samples Without DNA
|Study Start Date:||June 2009|
Native to the Comoro Archipelago (Grande Comore, Mayotte, Anjouan, Mohéli) fulfilling the clinical definition of the dry beriberi.
Native to the Comoro Archipelago, living in the same household as the patient, sharing the same meals. Free from beriberi and with normal neurological examination.
A team of 2 investigators, a nurse and an investigator speaking French, Shibushi and Shimaore (3 languages in use in Mayotte), will visit exposed patients who agreed to participate to the study.
3 controls, fulfilling inclusion criteria, will be recruited within the household by drawing lots.
Clinical examination and food survey by means of a questionnaire will be performed.
Blood samples will be drawn to determine thiamine status, vitamin B1 dosage, erythrocyte transketolase activity and thiamine pyrophosphate effect, analysis will be performed by Biomnis laboratory in Lyon.
For the genetic study, 4 drops of blood will be put down on Whatman paper and sent to Dr Johannes COY in Darmstadt Germany, for DNA extraction and PCR screening for mutations.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00934349
|Central Hospital - MAYOTTE|
|Mamudzu, France, 97600|
|Principal Investigator:||ERIC DOUSSIET, PHD||Regional Hospital La Reunion - CIC-EC|
|Principal Investigator:||IAN PERINET, PHD||CENTRAL HOSPITAL MAYOTTE|
|Principal Investigator:||JULIETTE WOESSNER, PHD||CENTRAL HOSPITAL MAYOTTE|
|Study Director:||Francoise DARCEL, PHD||Regional Hospital La Reunion - GHSR|