Publications by authors named "Nihad M Oteifa"

Article Synopsis
  • A study used camel hydatid fluid antigen in an ELISA system to detect specific IgG and IgG1 antibodies in sera from 35 patients with cystic echinococcosis (CE), finding high sensitivities of 88.6% for IgG and 94.35% for IgG1.
  • Patients with a strong immune response showed a significantly higher frequency of the HLA-DR3 gene, which is associated with IgG antibodies, and this gene was linked to more complicated cases of CE.
  • The findings suggest that testing for IgG1 is more reliable for diagnosing CE, and genetic factors like HLA-DR3 should be considered for predicting patient outcomes.
View Article and Find Full Text PDF

Five primers of known, but arbitrary nucleotide sequence (OPH-03, OPH-05, OPH-12, OPH-15, OPH-18) were used to detect genetic variability in Egyptian human, camel and pig E. granulosus isolates. OPH-03, OPH-05 & OPH-15 proved useful as genetic markers of strain variation, while OPH-12 and OPH-18 allowed distinction at the genus level i.

View Article and Find Full Text PDF

This is the first study dealing with the correlation between HLA antigens and cystic echinococcosis (CE) in Egyptian patients. The potential immunogenetic predisposition for susceptibility and resistance to unilocular echinococcosis was investigated by HLA-DRB1 typing; first by HLA-DRB1 amplification using PCR then using the allele-specific probing technique based on the reverse hybridization principle. The study was carried out on 35 patients with confirmed CE, and 100 apparently healthy individuals.

View Article and Find Full Text PDF

The recent understanding of the key role of adhesion molecules in the pathogenesis of chest allergy in parasitic infections may provide a pharmacological target for the associated asthmatic symptoms. Circulating levels of the endothelial cell adhesion molecules (CAMs): sICAM-1, sVCAM-1 and sE-selectin in sera of 18 allergic asthmatic patients. 16 fascioliasis cases (acute & chronic), 24 fascioliasis cases with allergic chest manifestations and 10 apparently healthy control subjects were estimated by ELISA method.

View Article and Find Full Text PDF

All isolates of T. vaginalis release cysteine proteinases proteolytic enzymes that are shed into the vagina or culture medium. Cystatin has been used successfully as a capture agent in ELISA to detect cysteine proteinase antibodies without the need for purified proteinases.

View Article and Find Full Text PDF