Alternatively, IgG subclass 4 (IgG4) binding can be measured instead of total IgG. Some of the food intolerance tests also measure both food-specific IgG4 and food-specific immunoglobulin E (IgE) ...

IgG4 does not have the same property of activating effector systems, and therefore has a limited proinflammatory effect. IgG4 can also bind to, and neutralise, the Fc region of other IgG subclasses (7 ...

Protection against RSV derived from preF IgG antibodies waned 6 months after infection in an analysis of patients with confirmed disease and household contacts.

Table 1. Changes in immune function with age (both men and women). Immune function Change Ref. B cell: Reduction in early progenitor B cells in bone marrow ...

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