background: polycystic ovary syndrome (pcos), a common endocrine disorder, is associated with infertility, menstrual dysfunction, hirsutism and frequent miscarriages. insulin resistance, as a major cause of pcos, represents a disorder with increase in inflammatory markers and risk of type 2 diabetes. we aimed to investigate whether inflammatory markers, including c-reactive protein and c3 (comp...

Incubation of the encapsulated yeast Cryptococcus neoformans in human serum leads to alternative pathway-mediated deposition of C3 fragments in the capsule. We examined the ability of monoclonal antibodies (MAbs) specific for different epitopes of the major capsular polysaccharide to alter the kinetics for classical and alternative pathway-mediated deposition of C3 onto a serotype A strain. We ...

We have recently shown that Sparus aurata, the gilthead sea bream (a diploid species), similarly to rainbow trout (a quasi-tetraploid species), possesses multiple forms of the third form of complement (C3). In the present study we have evaluated the ability of the gilthead sea bream proteins to function as active C3 molecules. All five C3 isoforms could be fixed covalently to sheep erythrocyte ...

Dense deposit disease (DDD) is a severe renal disease characterized by accumulation of electron-dense material in the mesangium and glomerular basement membrane. Previously, DDD has been associated with deficiency of factor H (fH), a plasma regulator of the alternative pathway (AP) of complement activation, and studies in animal models have linked pathogenesis to the massive complement factor 3...

Decay-accelerating factor (DAF) and complement receptor 1-related gene/protein y (Crry) are two membrane-anchored complement regulatory proteins in rodent. Although both proteins are broadly distributed and exert complement regulation at the same steps of the complement cascade, DAF knockout mice are viable whereas Crry knockout mice die in utero as a result of maternal complement attack. The l...

sociology is a multi-paradigm science. the main components of the paradigm include epistemic system, theoretical schools, raised patterns, research strategies, research methods and techniques, and facts under investigation. to be able to reach a satisfactory achievement, sociology has to obtain two main components, i.e. to be part of a paradigm and institutional autonomy. iranian sociology of t...

Of the 30 distinct complement proteins recognized to date, C3 is probably the most versatile and multifunctional molecule known, interacting with at least 20 different proteins.'s2 It plays a critical role in both pathways of complement activation and participates in phagocytic and immunoregulatory processes.'V2 The study of C3 molecules from different species gives insight into the structural ...