title: [14 cases of "anti-N" antibodies in hemodialysis patients in Marseille].
abstract: Some medical centers re-use dialysis units sterilized with formaldehyde. In a study of 239 cases, 14 "anti-N" antibodies were found only among the 59 patients of the medical centers which re-use dialysis units. The action of formol seems to be confirmed by the presence of "anti-N" in 2 patients who had undergone prosthesis several times, but not dialysis. For these prostheses, a bone cement, sterilized with formol, was used. These "anti-N" are very often associated with cold autoagglutinins, and appear regardless of the patient's MN group. The action of formaldehyde suggests the following hypotheses:--antigenic modification;--disturbances in the immune response mechanisms;--a combination of the two. In the first hypothesis: the action of formol discovered since a long time on red cells. In the second hypothesis: the existence of auto-agglutinins only among the 14 hemo-dialysis patients with anti-N antibodies.
mesh_terms: D000017:ABO Blood-Group System; D000367:Age Factors; D000373:Agglutinins / Q000032:analysis; D001323:Autoantibodies / Q000032:analysis; D005557:Formaldehyde / Q000009:adverse effects; D006801:Humans; D007518:Isoantibodies / Q000032:analysis*; D008951:MNSs Blood-Group System; D006435:Renal Dialysis / Q000009:adverse effects; D012737:Sex Factors; D013997:Time Factors
chemical_list: D000017:ABO Blood-Group System; D000373:Agglutinins; D001323:Autoantibodies; D007518:Isoantibodies; D008951:MNSs Blood-Group System; D005557:Formaldehyde
vernacular_title: Quatorze "anti N" chez des malades hémodialysés à Marseille.