OBJECTIVE: To determine whether anti-Giardia lamblia secretory IgA (sIgA) antibodies in human milk protect infants from acquisition of or symptoms associated with Giardia infection. METHODS: One hundred ninety-seven Mexican mother/infant pairs were followed weekly from birth for diarrheal disease and feeding status. Infant stool specimens were collected weekly and were cultured for bacterial pathogens and tested for Giardia and rotavirus by enzyme-linked immunosorbent assay. Maternal milk samples were collected weekly for 1 month postpartum and monthly thereafter. To determine the protective effect of anti-Giardia sIgA in milk against infection and against diarrhea due to Giardia, milk samples from mothers of infected infants and appropriately matched controls were assayed for anti-Giardia sIgA by enzyme-linked immunosorbent assay. RESULTS: Asymptomatic, infected infants ingested significantly (P = .046) higher amounts of milk anti-Giardia sIgA compared with symptomatic, infected infants. However, milk anti-Giardia sIgA concentrations did not differ between Giardia-infected and noninfected infants. CONCLUSION: The amount of anti-Giardia sIgA in human milk was associated with prevention of symptoms of diarrhea due to Giardia, but not with acquisition of the organism.
OBJECTIVE: To determine whether anti-Giardia lamblia secretory IgA (sIgA) antibodies in human milk protect infants from acquisition of or symptoms associated with Giardia infection. METHODS: One hundred ninety-seven Mexican mother/infant pairs were followed weekly from birth for diarrheal disease and feeding status. Infant stool specimens were collected weekly and were cultured for bacterial pathogens and tested for Giardia and rotavirus by enzyme-linked immunosorbent assay. Maternal milk samples were collected weekly for 1 month postpartum and monthly thereafter. To determine the protective effect of anti-Giardia sIgA in milk against infection and against diarrhea due to Giardia, milk samples from mothers of infected infants and appropriately matched controls were assayed for anti-Giardia sIgA by enzyme-linked immunosorbent assay. RESULTS: Asymptomatic, infected infants ingested significantly (P = .046) higher amounts of milk anti-Giardia sIgA compared with symptomatic, infected infants. However, milk anti-Giardia sIgA concentrations did not differ between Giardia-infected and noninfected infants. CONCLUSION: The amount of anti-Giardia sIgA in human milk was associated with prevention of symptoms of diarrhea due to Giardia, but not with acquisition of the organism.
Authors: Naglaa Saad M El-Gebaly; Eman Fawzy Halawa; Hanaa M Ezzat Moussa; Ibrahim Rabia; Maha Abu-Zekry Journal: Parasitol Res Date: 2012-03-09 Impact factor: 2.289
Authors: Erin C Davis; Vanessa P Castagna; David A Sela; Margaret A Hillard; Samantha Lindberg; Nicholas J Mantis; Antti E Seppo; Kirsi M Järvinen Journal: J Allergy Clin Immunol Date: 2022-09 Impact factor: 14.290
Authors: Poonum S Korpe; Yue Liu; Abdullah Siddique; Mamun Kabir; Katherine Ralston; Jennie Z Ma; Rashidul Haque; William A Petri Journal: Clin Infect Dis Date: 2012-12-12 Impact factor: 9.079