PubMed · 14097774
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K NORDSTROEM. 1963-12-05. [SYSTEMIC REACTIONS IN MALIGNANT PROCESSES].. https://pubmed.ncbi.nlm.nih.gov/14097774/
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Inflammatory diseases encompass a variety of medical conditions. In this chapter, autoimmune diseases and allergic disorders will be our focus. The autoimmune diseases include organ-specific autoimmunities, such as type I diabetes mellitus and autoimmune thyroiditis (AITD), and organ non-specific disorders such as systemic lupus erythematosus (SLE). All of them seem to share aspects of aberrant immunologic tolerance toward self-antigens. Asthma and atopic diathesis are among the allergies. Crohn disease and SLE are relatively rare with a prevalence of 10-50 per 100,000, and rheumatoid arthritis (RA), psoriasis, AITD and asthma are commoner with a prevalence of 500 per 100,000 or much higher. The difference among ethnic groups is not prominent for rheumatoid arthritis, psoriasis, AITD or asthma, but Crohn disease and SLE affect some ethnic populations more than others. Although all of these disorders have some environmental component, asthma and atopy seem most affected by environmental factors, as is suggested by the significant increase in their incidence over the last several decades with changes in various environmental factors, especially in developed countries. Over the last 10 years, multiple linkage studies revealed many disease-linked loci throughout the genome with various consistencies. As implicated by some pathophysiological studies of inflammatory immune system related disorders, certain loci are involved in multiple disorders. In the following sections, reports on the identification of disease-associated genes or markers will be summarized for individual diseases (cytotoxic T lymphocyte-associated 4 (CTLA4), CARD15, DLG5, SLC22A4/A5, programmed cell death 1 (PDCD1), RUNX1, SLC9A3R1/NAT9, PADI4, ADAM33, DPP10, PHF11 and GPRA), followed by a discussion of the genes that have been implicated in multiple disorders.
Patients with autoimmune disorders exhibit highly reproducible gene expression profiles in their peripheral blood mononuclear cells. These signatures may result from chronic inflammation, other disease manifestations, or may reflect family resemblance. To test the latter hypothesis, we determined gene expression profiles in unaffected first-degree relatives of individuals with autoimmune disease. Gene expression profiles in unaffected first-degree relatives resembled the profiles found in individuals with autoimmune diseases. A high percentage of differentially expressed genes in unaffected first-degree relatives were previously identified as autoimmune signature genes. Examination of the linear regression relationship of gene transcript levels between parent-offspring pairs revealed that autoimmune signature genes display high levels of family resemblance. Taken together, these results support the hypothesis that these variations in gene transcript levels are associated with family resemblance rather than clinical manifestations of disease.
The accumulation of fluid in the pleural space is a common manifestation of a wide range of disease. This review provides a structured approach to the investigation of the patient with a pleural effusion. This should allow an accurate diagnosis to be made with the minimum number of invasive and time-consuming investigations.