Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UNIPROT:P01889 (ankylosing spondylitis)
 5,717 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The cellular stores of iron in granulocytes and platelets isolated from 29 patients with ankylosing spondylitis were measured by the nuclear microprobe technique. The mean iron content in polymorphonuclear cells (PMNs) was 32 (SD 3) micrograms/g dry weight and in platelets 11 (2.6) micrograms/g dry weight. Corresponding values for age and sex matched healthy controls were 5.2 (1.9) and 4.6 (0.8) micrograms/g (p less than 0.001). Significant correlations were found in the patient group between (PMN) iron and the circulating levels of transferrin, total iron, and lactoferrin (p less than 0.05). PMN iron was not related to serum ferritin. Platelet iron correlated with transferrin (p less than 0.01) but not with the other iron binding proteins. Significant relationships were also found between the PMN iron stores and the inflammatory activity defined by erythrocyte sedimentation rate (ESR) and the immunoglobulins A and G. These data further illustrate the altered iron kinetics in chronic inflammatory disease and record the fact that the redistribution of iron associated with the inflammatory process also includes granulocytes and platelets.
 ...
PMID:Ankylosing spondylitis: a chronic inflammatory disease with iron overload in granulocytes and platelets. 378 18

In addition to the usual parameters for haematologic an rheumatologic diseases folic acid, vitamin B12, and ferritin were investigated by radioisotope studies. In some groups folic acid was lower compared to controls, and it is possible that the disease causes the deficiency of folic acid absorption and distribution. Vitamin B12 was only slightly decreased, thus, the values may be assumed to be close to normals. Transferrin ankylosing spondylitis is similar to that of controls, however, transferrin increases in rheumatoid arthritis and in mixed groups containing patients various diseases. Finally, the deficiency of folic acid absorption can be assumed to be caused by the symptoms of the disease, whereas in the case of inflammatory diseases and in mixed group transferrin increased.
 ...
PMID:Radioisotope binding capacity of serum in folic acid, vitamin B12 and ferritin in haematologic and rheumatologic patients. 616 34

Aortic root abnormalities including cusp thickening, subvalvular stenosis, and mild aortic root dilatation are the most common cardiac complications in patients with long standing ankylosing spondylitis (AS). Twenty-three patients with definite idiopathic AS (New York Criteria 1966) and twenty-two matched controls were studied with M-mode echocardiography. Only one of the AS patients had clinical aortic incompetence. Six of the AS patients had mildly dilated aortic roots (normal less than 3.7 cm) with a mean diameter of 3.9 cm (range 3.8 to 4.00 cm). None of the twenty-two controls matched for age, sex and blood pressure had dilated aortic roots, with a mean diameter of 3.3 cm (range 2.9 to 3.6 cm). No correlation existed between aortic dilatation and severity of disease estimated by acute phase proteins--caerulo plasmin, alpha 1-antitrypsin, alpha 1 acid glycoprotein, ferritin and C Reactive protein. Contrary to a previous report, mild aortic root dilatation occurs in long standing cases of AS. Although it is a non-specific finding, it does not appear to be related to age or blood pressure and may therefore be the forerunner of aortic incompetence.
 ...
PMID:Early detection of aortic dilatation in ankylosing spondylitis using echocardiography. 695 32

Radioimmunoassay with calf and cow vitreous humour-I125 and rabbit antivitreous humour serum has been employed to investigate the immunological cross-reactivity of vitreous humour with bacterial and mammalian tissue antigens. Klebsiella ultrasonicate preparation at a dose fo 10 000 micrograms/ml was found to inhibit the binding of vitreous humour by 25-100% (p less than 0.001), compared with an inhibition of 5-30% by a similar quantity of E. coli ultrasonicate preparation. Equivalent amounts of Streptococcus pyogenes antigen, bovine haemoglobin, and hyaluronic acid had no inhibitory effect, while horse spleen ferritin was found to inhibit vitreous humour binding between 0 and 10%. These results indicate that klebsiella micro-organisms have antigens which partially resemble some eyeball components. It is suggested that acute anterior uveitis of ankylosing spondylitis may be produced by anti-Gram-negative bacterial antibodies binding to cross-reacting eye antigens.
 ...
PMID:Uveitis, vitreous humour, and klebsiella. II. Cross-reactivity studies with radioimmunoassay. 701 60

Macrophage activation syndrome (MAS), which can also be considered as reactive hemophagocytic syndrome (HPS), is a rare and potentially fatal complication of rheumatic diseases. We describe a 42-year-old woman in whom MAS developed as a complication of ankylosing spondylitis (AS). She suffered from fever and low back pain before admission. Laboratory findings were pancytopenia, abnormal liver enzymes, increased ferritin levels, and positive for B27. Hyperplasia of hemophagocytic macrophages was confirmed in her bone marrow. High-dose steroids therapy resulted in clinical and laboratory improvements. In this patient, there was no possible causative factor of HPS (such as viral infection, lymphoma, and systemic lupus erythematosus) except the presence of AS. There have been no previously reported cases describing the relationship between AS and HPS. This case indicates that attention should be given to the possibility that certain patients with AS-associated cytopenia may display accompanying intramedullary hemophagocytic phenomena.
 ...
PMID:Ankylosing spondylitis presenting with macrophage activation syndrome. 1723 50

Recurrent macrophage activation syndrome (MAS) is very rare. We present the case of an adolescent boy with human leukocyte antigen (HLA) B27-positive ankylosing spondylitis (AS), who experienced episodes of recurrent MAS since he was a toddler. A 16-year-old boy was admitted because of remittent fever with pancytopenia and splenomegaly after surgical intervention for an intractable perianal abscess. He had been diagnosed with hemophagocytic lymphohistiocytosis (HLH) 4 different times, which was well controlled with intravenous immunoglobulin and steroids since the age of 3. We were unable to identify the cause for the HLH. He remained symptom-free until the development of back pain and right ankle joint pain with swelling at 15 years of age. He was diagnosed with HLA B27-positive AS with bilateral active sacroiliitis. He showed symptom aggravation despite taking naproxen and methotrexate, and the symptoms improved with etanercept. On admission, his laboratory data showed leukopenia with high ferritin and triglyceride levels. Bone marrow biopsy examination showed histiocytic hyperplasia with hemophagocytosis. There was no evidence of infection. He received naproxen alone, and his symptoms and laboratory data improved without any other immunomodulatory medications. Genetic study revealed no primary HLH or inflammasome abnormalities. In this case, underlying autoimmune disease should have been considered as the cause of recurrent MAS in the young patient once primary HLH was excluded.
 ...
PMID:Recurrent macrophage activation syndrome since toddler age in an adolescent boy with HLA B27 positive juvenile ankylosing spondylitis. 2782 29