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  2. Rheumatoid factor - Wikipedia

    en.wikipedia.org/wiki/Rheumatoid_factor

    There is an association between rheumatoid factor and more persistently active synovitis, more joint damage, greater eventual disability and arthritis. [12] [13] Other than in rheumatoid arthritis, rheumatoid factor may also be elevated in other conditions, including: Systemic lupus erythematosus (SLE) [14] [15] Sjögren syndrome [14] [15]

  3. Psoriatic arthritis - Wikipedia

    en.wikipedia.org/wiki/Psoriatic_arthritis

    A negative test result for rheumatoid factor, a blood factor associated with rheumatoid arthritis. Arthritis symptoms in the distal interphalangeal articulations of hand (the joints closest to the tips of the fingers). This is not typical of rheumatoid arthritis.

  4. Anti-rheumatoid factor antibodies are also increased. [95] In addition, cross-reactive anti-beef-collagen antibodies (IgG) may explain some rheumatoid arthritis (RA) incidences. [ 96 ] Although the presence of anti-beef collagen antibodies does not necessarily lead to RA, the RA association with Triticeae consumption is secondary to GSE and ...

  5. Inflammation - Wikipedia

    en.wikipedia.org/wiki/Inflammation

    Factor XII (Hageman Factor) Liver: A protein that circulates inactively, until activated by collagen, platelets, or exposed basement membranes via conformational change. When activated, it in turn is able to activate three plasma systems involved in inflammation: the kinin system, fibrinolysis system, and coagulation system. Membrane attack complex

  6. Rh blood group system - Wikipedia

    en.wikipedia.org/wiki/Rh_blood_group_system

    Rh(D) status of an individual is normally described with a positive (+) or negative (−) suffix after the ABO type (e.g., someone who is A+ has the A antigen and Rh(D) antigen, whereas someone who is A− has the A antigen but lacks the Rh(D) antigen). The terms Rh factor, Rh positive, and Rh negative refer to the Rh(D

  7. Autoimmune disease - Wikipedia

    en.wikipedia.org/wiki/Autoimmune_disease

    An autoimmune disease is a condition that results from an anomalous response of the adaptive immune system, wherein it mistakenly targets and attacks healthy, functioning parts of the body as if they were foreign organisms. [1]

  8. Intrinsic factor - Wikipedia

    en.wikipedia.org/wiki/Intrinsic_factor

    14603 Ensembl ENSG00000134812 ENSMUSG00000024682 UniProt P27352 P52787 RefSeq (mRNA) NM_005142 NM_008118 RefSeq (protein) NP_005133 NP_032144 Location (UCSC) Chr 11: 59.83 – 59.85 Mb Chr 19: 11.72 – 11.74 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Intrinsic factor (IF), cobalamin binding intrinsic factor, also known as gastric intrinsic factor (GIF), is a glycoprotein ...

  9. Gram stain - Wikipedia

    en.wikipedia.org/wiki/Gram_stain

    Gram negative Neisseria gonorrhoeae and pus cells. Gram-negative bacteria generally possess a thin layer of peptidoglycan between two membranes (diderm). [26] Lipopolysaccharide (LPS) is the most abundant antigen on the cell surface of most gram-negative bacteria, contributing up to 80% of the outer membrane of E. coli and Salmonella. [27]