TY - JOUR PY - 2021// TI - Revisiting konzo risk factors in three areas differently affected by spastic paraparesis in eastern Democratic Republic of the Congo discloses a prominent role of the nutritional status--a comparative cross-sectional study JO - Nutrients A1 - Baguma, Marius A1 - Malembaka, Espoir Bwenge A1 - Bahizire, Esto A1 - Mudumbi, Germain Zabaday A1 - Shamamba, Dieudonné Bahati A1 - Matabaro, Alain-Narcisse A1 - Rigo, Jean-Michel A1 - Njamnshi, Alfred Kongnyu A1 - Chabwine, Joelle Nsimire SP - e2628 EP - e2628 VL - 13 IS - 8 N2 - This comparative cross-sectional study aimed to better understand the respective contributions of protein malnutrition and cassava-derived cyanide poisoning in the development of konzo. We compared data on nutritional status and cyanide exposure of school-age adolescent konzo-diseased patients to those of non-konzo subjects of similar age from three areas in the Eastern Democratic Republic of the Congo. Our results show that konzo patients had a high prevalence of both wasting (54.5%) and stunting (72.7%), as well as of cyanide poisoning (81.8%). Controls from Burhinyi and those from Idjwi showed a similar profile with a low prevalence of wasting (3.3% and 6.5%, respectively) and intermediate prevalence of stunting (26.7% and 23.9%, respectively). They both had a high prevalence of cyanide poisoning (50.0% and 63.0%, respectively), similar to konzo-patients. On the other hand, controls from Bukavu showed the lowest prevalence of both risk factors, namely chronic malnutrition (12.1%) and cyanide poisoning (27.6%). In conclusion, cassava-derived cyanide poisoning does not necessarily coexist with konzo outbreaks. The only factor differentiating konzo patients from healthy individuals exposed to cyanide poisoning appeared to be their worse nutritional status. This further suggests that, besides the known role of cyanide poisoning in the pathogenesis of konzo, malnutrition may be a key factor for the disease occurrence.

Language: en

LA - en SN - 2072-6643 UR - http://dx.doi.org/10.3390/nu13082628 ID - ref1 ER -