Publications by authors named "Rafael Meleka Hanna"

Article Synopsis
  • * The research identified 12 significant genetic markers linked to MG, with certain markers associated specifically with early-onset (under 50) and late-onset (50 and older) forms of the disease.
  • * Additionally, the study highlighted the potential role of genetic factors in determining the age of disease onset and demonstrated that polygenic risk scores could help predict MG status, explaining over 4% of the variation in disease presence.
View Article and Find Full Text PDF

IgG4 subclass antibodies represent the rarest subclass of IgG antibodies, comprising only 3-5% of antibodies circulating in the bloodstream. These antibodies possess unique structural features, notably their ability to undergo a process known as fragment-antigen binding (Fab)-arm exchange, wherein they exchange half-molecules with other IgG4 antibodies. Functionally, IgG4 antibodies primarily block and exert immunomodulatory effects, particularly in the context of IgE isotype-mediated hypersensitivity reactions.

View Article and Find Full Text PDF