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Boyer GS, Denny FW, Miller I, Ginsberg HS. CORRELATION OF PRODUCTION OF INFECTIOUS VIRUS WITH SEQUENTIAL STAGES OF CYTOLOGIC ALTERATION IN HELA CELLS INFECTED WITH ADENOVIRUSES TYPES 5 AND 7. ACTA ACUST UNITED AC 2010; 112:865-82. [PMID: 19867181 PMCID: PMC2137311 DOI: 10.1084/jem.112.5.865] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Studies correlating the production of infectious adenovirus (types 5 and 7) and the progression of the stages of virus-induced cytologic change in HeLa cells are presented. The results reveal a close relationship between the development of the characteristic nuclear changes and adenovirus synthesis. They suggest that cells manifesting the first stages of nuclear change, characterized by the appearance of eosinophilic, Feulgen-negative inclusions, contain little or no mature infectious virus, whereas cells in the later stages, with Feulgen-positive and basophilic inclusions, contain relatively large amounts.
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Affiliation(s)
- G S Boyer
- Departments of Preventive Medicine, Medicine and Pediatrics, School of Medicine, Western Reserve University, and the University Hospitals, Cleveland
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Boyer GS, Templin DW, Bowler A, Lawrence RC, Heyse SP, Everett DF, Cornoni-Huntley JC, Goring WP. Spondyloarthropathy in the community: differences in severity and disease expression in Alaskan Eskimo men and women. J Rheumatol 2000; 27:170-6. [PMID: 10648035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
OBJECTIVES To determine the relative severity and compare the clinical expression of spondyloarthropathy (SpA) in men and women. METHODS A clinical study was conducted in 43 women and 40 men who made up 80% of all individuals identified as having SpA in a community-wide epidemiologic study of Alaskan Eskimos. The study included interviews, physical, laboratory, radiographic and electrocardiographic examinations, record reviews, and functional assessments. A measure of relative severity was developed to evaluate disease impact in individual patients. The results in men and women were compared. RESULTS No significant differences between men and women were found in many features, including the age of onset, frequency of inflammatory joint swelling or inflammatory back pain, physical signs of sacroiliitis, presence of skin changes, or positive family history of SpA. Women were less likely to have sacroiliac joint fusion, advanced spinal changes, uveitis, severe cardiac conduction and valvular abnormalities, and elevated erythrocyte sedimentation rates. According to our relative severity measure, a smaller proportion of women had severe disease than men. CONCLUSION Although as many women as men were affected by SpA in the communities studied, severe disease was seen more often in men and a number of disease manifestations were more frequent or more marked in men. These discrepancies in disease severity and expression may contribute to the underdiagnosis of SpA in women and the long standing impression that SpA is a disease predominantly of men.
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Affiliation(s)
- G S Boyer
- Alaska Area Native Health Service, Anchorage, USA
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Boyer GS, Templin DW, Bowler A, Lawrence RC, Heyse SP, Everett DF, Cornoni-Huntley JC. Spondyloarthropathy in the community: clinical syndromes and disease manifestations in Alaskan Eskimo populations. J Rheumatol 1999; 26:1537-44. [PMID: 10405942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
OBJECTIVE To define the clinical spectrum and disease manifestations of spondyloarthropathy (SpA) as seen in a community, rather than a referral setting. METHODS Eighty percent (83/104) of all individuals identified as having SpA in a community wide epidemiologic study of Alaskan Eskimos and 83 age and sex matched controls from the same regions participated in a 5 year clinical study. The study included baseline and followup interviews, physical, radiographic, and electrocardiographic examinations, record reviews, and functional assessment. The medical records of an additional 83 age and sex matched controls were reviewed and followed over the same 5 year period. RESULTS The spectrum of disease varied from very mild undifferentiated SpA (USpA) to incapacitating ankylosing spondylitis (AS). Most cases were mild. Overlapping clinical features were common in the different syndromes; 10% of the cases met more than 1 set of disease criteria. Axial signs and symptoms were more frequent in patients with AS, but occurred in over half of the patients with USpA and reactive arthritis (ReA) also. Peripheral joint involvement was noted in 85% of the AS cases, usually early in the course of disease. The patterns of joint involvement and enthesopathy were similar in SpA subjects with different syndromes and significantly different from those in control subjects. Patients with AS had a higher frequency of uveitis and of aortic root disease than patients with other syndromes. CONCLUSION The results illustrate the extent of shared clinical features in the different SpA syndromes, and describe the frequency of different features associated with SpA in patients and matched controls in a community setting. ReA and USpA were more prevalent and less severe than AS in these populations.
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Affiliation(s)
- G S Boyer
- Alaska Area Native Health Service, Anchorage, USA
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Boyer GS, Benevolenskaya LI, Templin DW, Erdesz S, Bowler A, Alexeeva LI, Goring WP, Krylov MY, Mylov NM. Prevalence of rheumatoid arthritis in circumpolar native populations. J Rheumatol 1998; 25:23-9. [PMID: 9458198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To compare the prevalence of rheumatoid arthritis (RA) in related, but geographically separate, indigenous circumpolar populations. METHODS Cases were identified by community survey in Russia and by examination of cases located through arthritis registries, a computerized patient information database, and query of local health care providers in Alaska. All possible cases were verified by examination and application of the American College of Rheumatology 1987 criteria. RESULTS The prevalence rates of RA (age standardized to US population of 1980) varied from 0.62% in the Alaskan Yupik to 1.78% in the Alaskan Inupiat. The Russian Chukchi rate was 0.73% and that of the Siberian Eskimo was 1.42%. CONCLUSION The Alaskan Yupik Eskimo and Chukchi natives had prevalence rates of RA within the usual range of North American Caucasian groups, in contrast to the Russian Siberian Eskimo and the Alaskan Inupiat Eskimo of the Barrow region, whose high rates approached those of unrelated North American native groups living in very different environments. The Alaskan Inupiat rate was significantly higher than that of the Alaskan Yupik (OR = 2.51, 95% CI 1.25-5.07; p = 0.013), but statistical inferences are limited in the Russian study populations by the small case numbers. The high prevalence rates probably have a genetic basis, although an environmental influence cannot be excluded.
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Affiliation(s)
- G S Boyer
- Alaska Area Native Health Service, Anchorage, USA
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Boyer GS, Templin DW, Bowler A, Lawrence RC, Everett DF, Heyse SP, Cornoni-Huntley J, Goring WP. A comparison of patients with spondyloarthropathy seen in specialty clinics with those identified in a communitywide epidemiologic study. Has the classic case misled us? Arch Intern Med 1997; 157:2111-7. [PMID: 9382668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Undiagnosed cases of seronegative spondyloarthropathy (Spa) are often observed during epidemiologic studies. OBJECTIVE To determine the extent of and the reasons for the underdiagnosis of Spa. METHODS We studied 2 groups of Alaskan native patients with Spa using a standardized protocol that included an interview, physical examination, medical record review, and radiographic and laboratory examinations. One group consisted of patients identified in a communitywide epidemiologic study; the other group consisted of patients from related but geographically separate populations who had been diagnosed by a specialist in the hospital or a specialty clinic. All cases met the current classification criteria for Spa. The clinical and demographic features of the cases in the 2 groups were compared. RESULTS Fifty-five (72%) of the 76 community cases that we identified in the epidemiologic study had not been diagnosed previously as Spa. Among the undiagnosed patients were 34 (94%) of the 36 women, 11 (65%) of the 17 patients with ankylosing spondylitis, 12 (36%) of the 33 patients with reactive arthritis, and 24 (100%) of those with undifferentiated Spa. The community and specialty clinic patient groups were similar in age of onset of joint and back pain and in overall symptoms. The specialty clinic group had a higher proportion of men, more severe disease, and a higher frequency of iritis. CONCLUSIONS The diagnosis of Spa was missed more often than not in the primary care setting, probably because most of the cases were of mild or moderate severity and did not fit the classic descriptions of spondyloarthropathic disorders. The higher proportion of men among the specialty clinic cases probably reflects provider expectation as well as a slightly milder disease course in women.
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Affiliation(s)
- G S Boyer
- Alaska Area Native Health Service, Anchorage, USA
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Boyer GS. A comparison of patients with spondyloarthropathy seen in specialty clinics with those identified in a communitywide epidemiologic study. Has the classic case misled us? ACTA ACUST UNITED AC 1997. [DOI: 10.1001/archinte.157.18.2111] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Boyer GS, Templin DW, Bowler A, Lawrence RC, Heyse SP, Everett DF, Cornoni-Huntley JC, Goring WP. Class I HLA antigens in spondyloarthropathy: observations in Alaskan Eskimo patients and controls. J Rheumatol 1997; 24:500-6. [PMID: 9058656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To assess the role of HLA-B27 and other class I histocompatibility antigens in overall risk and clinical manifestations of spondyloarthropathy (SpA) in Alaskan Eskimos. METHODS Class I antigens were studied in 104 patients with SpA and in 111 controls. The frequencies of HLA-A, B, and Cw antigens were determined in patients with SpA with various clinical manifestations and compared to frequencies observed in controls. RESULTS Only HLA-B27 differed significantly in cases and controls. Except for B27, no association of particular antigens with specific syndromes or disease features was found. Patients with B27 had more extraarticular manifestations than patients who lacked B27 antigen. Patients putatively homozygous for B27 did not appear to have more severe disease than those who were heterozygotic. B27 was most closely associated with ankylosing spondylitis [odds ratio (OR) = 210], less so with reactive arthritis (OR = 12.9) and undifferentiated SpA (OR = 4.6). CONCLUSION Observations in other population groups that implicated B27 cross reactive group (CREG) and other A, B, and Cw antigens as risk factors for developing SpA were not confirmed in Alaskan Eskimos. Nor were CREG or other B antigens either alone or in combination with B27 associated with specific clinical syndromes. Only HLA-B27 was strongly associated with disease and with extraarticular manifestations.
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Affiliation(s)
- G S Boyer
- Alaska Area Native Health Service, Anchorage
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Benevolenskaya LI, Boyer GS, Erdesz S, Templin DW, Alexeeva LI, Lawrence RC, Heyse SP, Krylov MY, Mylov NM, Cornoni-Huntley JC, Everett DF, Goring WP, Bowler A. Spondylarthropathic diseases in indigenous circumpolar populations of Russia and Alaska. Rev Rhum Engl Ed 1996; 63:815-22. [PMID: 9010969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
AIMS To compare the nature and frequency of spondylarthropathy in geographically separated but genetically related populations with a high prevalence of HLA-B27. METHODS Using a common questionnaire and disease criteria, cases were ascertained through cross-sectional community surveys in Russia and by examination and study of possible cases identified through rheumatic disease registries and the Native Health Service's computerized patient care data system in Alaska. RESULTS Similar overall prevalences of spondyloarthropathy (2.0-3.4%) and a similar spectrum of disease were found, including reactive arthritis, ankylosing spondylitis and undifferentiated spondylarthropathy. Psoriatic arthritis was very rare. CONCLUSION No predisposition to one particular form of spondyloarthropathy was observed; genetic and microbial settings for a spectrum of disease were present. Among adults positive for the presence of HLA-B27 the prevalence of all types of spondylarthropathies was estimated to be 4.5%, all populations combined, and the prevalence of AS was estimated to be 1.6%.
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Affiliation(s)
- L I Benevolenskaya
- Department of Epidemiology and Genetics of Rheumatic Diseases, Russian Academy of Medical Sciences, Moscow
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Boyer GS, Benevolenskaya LI, Templin DW, Erdesz S, Alexeeva LI, Lawrence RC, Heyse SP, Mylov NM, Cornoni-Huntley JC, Everett DF, Goring WP, Bowler A. Spondyloarthropathies in circumpolar populations: II. Characterization of the populations. Arctic Med Res 1996; 55:195-203. [PMID: 9115546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
For epidemiologic studies of spondyloarthropathy in circumpolar peoples of Chukotka, Russia and Alaska, we gathered demographic, physical and laboratory data to provide a background for evaluating and comparing factors that may influence susceptibility and clinical expression of disease. The study groups included the Chukchi and Siberian Eskimo of Russia and the Inupiat and Yupik Eskimo of Alaska. The 4 groups were remarkably similar in population structure, educational attainment, mean hemoglobin concentrations and frequency of the Class I histocompatibility antigen HLAB27. The Alaskan and Chukotkan groups were similar in mean height, but the Alaskans had higher body weights and significantly greater body mass indexes, probably a reflection of a shift away from traditional lifestyle and diet. Differences in the frequencies of ABO and MN blood group antigens were also apparent, with higher frequencies of blood group M in the Alaskan populations, particularly the Inupiat.
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Affiliation(s)
- G S Boyer
- Alaska Area Native Health Service, Anchorage, USA
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Lawrence RC, Everett DF, Benevolenskaya LI, Boyer GS, Erdesz S, Templin DW, Alexeeva LI, Lanier AP, Cornoni-Huntley JC, Mylov NM, Heyse S. Spondyloarthropathies in circumpolar populations: I. Design and methods of United States and Russian studies. Arctic Med Res 1996; 55:187-94. [PMID: 9115545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Parallel epidemiologic studies of spondyloarthropathy in aboriginal circumpolar populations were carried out by U.S. and Russian investigators. These complementary studies used the same data collection instrument and disease criteria to facilitate comparisons. During three expeditions to Siberia, Russian investigators collected cross-sectional data from four settlements of Eskimos and Chukchi Indians on the Chukotka peninsula for a study of disease prevalence. U.S. researchers collected cross-sectional data from Eskimos in four Alaskan regions for studies of prevalence and longitudinal data for studies of clinical manifestations, natural history, disease impact, and health care utilization. The aims of these studies were to describe the spectrum of spondyloarthropathy in these populations, and to lay the groundwork for investigations of the role of specific genetic and environmental factors in the pathogenesis and expression of disease. These studies were carried out with a minimum disruption to the native people.
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Affiliation(s)
- R C Lawrence
- National Institutes of Health, National Institute of Arthritis and Musculoskeletal and Skin Diseases, Bethesda, MD, USA
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Boyer GS. Discrepancies between patient recall and the medical record. Potential impact on diagnosis and clinical assessment of chronic disease. ACTA ACUST UNITED AC 1995. [DOI: 10.1001/archinte.155.17.1868] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Boyer GS, Templin DW, Goring WP, Cornoni-Huntley JC, Everett DF, Lawrence RC, Heyse SP, Bowler A. Discrepancies between patient recall and the medical record. Potential impact on diagnosis and clinical assessment of chronic disease. Arch Intern Med 1995; 155:1868-1872. [PMID: 7677553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
BACKGROUND During a case-control study, data necessary for fulfilling diagnostic and classification criteria for spondyloarthropathy were collected from 121 patients. OBJECTIVE To study the potential impact of differences between patient recall and the medical record on diagnosis and clinical characterization of spondyloarthropathy as a model of chronic disease. METHODS The study was conducted among four Alaskan Eskimo populations served by the Alaska Native Health Service. Two sets of historical data were compiled for each subject, one acquired during the interview and the other derived from the medical record. Paired items from the interview and the medical record were analyzed to determine discrepancies and consequent effects on diagnosis, classification, and disease characterization. RESULTS Significant differences were observed in the reporting of genitourinary or diarrheal illnesses preceding or associated with arthritis, the occurrence of eye inflammation in association with joint pain, the occurrence of joint pain and back pain together, and the age at onset of back pain all of which are important to the diagnosis and classification of spondyloarthropathy. In contrast, for information needed to establish the probable inflammatory nature of back pain, patient interview was more helpful than the medical records, which did not provide adequate details to differentiate inflammatory from mechanical back pain. CONCLUSIONS Patient recall bias can substantially affect diagnosis and clinical assessment of chronic disease, as exemplified by spondyloarthropathy. Reliance on records alone, however, may lead to underestimation of features that require subjective appraisal by the patient.
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Affiliation(s)
- G S Boyer
- Alaska Area Native Health Service, Anchorage, USA
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Boyer GS, Templin DW, Cornoni-Huntley JC, Everett DF, Lawrence RC, Heyse SF, Miller MM, Goring WP. Prevalence of spondyloarthropathies in Alaskan Eskimos. J Rheumatol 1994; 21:2292-7. [PMID: 7699631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
OBJECTIVE To estimate the prevalence of spondyloarthropathies (SpA) in 2 Alaskan Eskimo populations, using improved methodology for case ascertainment and new, more inclusive classification criteria. METHODS Through existing rheumatic disease registries, health care providers and the Alaska Area Native Health Service (AANHS) computerized patient information system, we identified all native residents of the 2 study regions with a diagnosis of any inflammatory arthritis or problems characteristic of SpA, such as iritis or persistent back pain. Individuals with such diagnoses or problems were evaluated in clinic, according to a standardized protocol (interview, examination), and by medical record review, pelvic radiography and laboratory tests. Each case was evaluated according to standard diagnostic criteria for the individual disease entities and by the Amor and European Spondylarthropathy Study Group (ESSG) preliminary classification criteria for SpA. RESULTS We identified 104 cases of SpA in the combined Eskimo populations, an overall prevalence of 2.5% in adults aged 20 and over. Both undifferentiated (USpA) and reactive SpA were more common than ankylosing spondylitis (AS). CONCLUSION Using the new criteria and a more effective approach to case ascertainment we found the prevalence of SpA to be about twice that found in our earlier studies of adult Eskimo populations. The prevalence of SpA was very similar in men and women. Despite the known high prevalence (25-40%) of HLA-B27 in the study populations we did not find the prevalence of any form of SpA to be as strikingly high as that of AS (6-10%) for the Canadian Haida.
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Affiliation(s)
- G S Boyer
- Alaska Area Native Health Service, Anchorage
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Templin DW, Boyer GS, Lanier AP, Nelson JL, Barrington RA, Hansen JA, Harpster A, Carlsen R. Rheumatoid arthritis in Tlingit Indians: clinical characterization and HLA associations. J Rheumatol 1994; 21:1238-44. [PMID: 7525956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
OBJECTIVE To characterize the features of rheumatoid arthritis (RA) in Tlingit Indians, to identify the HLA-DR alleles associated with RA in the Tlingit, and to determine whether disease severity or specific clinical manifestations correlate with the presence of specific HLA antigens. METHOD Thirty-seven Tlingit patients with RA and 75 controls were evaluated clinically; comparative HLA studies were carried out in 33 patients and 62 controls. RESULTS The results of this clinical study of RA in the Tlingit confirms that the disease found in them is classical RA, characterized by an early age of onset, a high frequency of nodules, serum rheumatoid factor (RF) and antinuclear antibodies (ANA); an often severe clinical course, with a high frequency of erosive disease and frequent need for surgical joint repair, and an often positive family history. In Tlingit volunteers who did not have RA we also found an increased prevalence of RF and ANA. Neither HLA-DR1 nor DR4 was found to be associated with RA in the Tlingit. The commonest DR antigen in patients with RA was DR14. The most frequent DRB1 allele was DRB1*1402 (Dw16). CONCLUSION The Tlingit population had a very high frequency of the DRB1*1402 allele, which shares key sequence homology with DRB1*0401 (Dw4) and DRB1*0101 (Dw1), associated with RA in other racial groups. No correlations were found between specific HLA-DRB1 alleles or combinations of alleles and specific disease features or severity.
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Affiliation(s)
- D W Templin
- Internal Medicine Service, Alaska Native Medical Center, Anchorage 99501
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Boyer GS, Templin DW, Goring WP. Evaluation of the European Spondylarthropathy Study Group preliminary classification criteria in Alaskan Eskimo populations. Arthritis Rheum 1993; 36:534-8. [PMID: 8457228 DOI: 10.1002/art.1780360414] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
OBJECTIVE To evaluate the preliminary classification criteria proposed by the European Spondylarthropathy Study Group (ESSG) in Alaskan Eskimo populations. METHODS We examined, interviewed, and reviewed the records of 104 Eskimo patients with spondylarthropathy and 75 with other rheumatic disorders, and evaluated them according to the proposed criteria. RESULTS We found an overall sensitivity of 88.5% and a specificity of 89.3%, which is similar to the reported values in European populations. CONCLUSION The ESSG criteria performed well in a population very different from that in which they were developed, and deserve further evaluation as a much-needed and useful epidemiologic tool.
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Affiliation(s)
- G S Boyer
- Alaska Area Native Health Service, Anchorage
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Boyer GS, Templin DW, Lanier AP. Rheumatic diseases in Alaskan Indians of the southeast coast: high prevalence of rheumatoid arthritis and systemic lupus erythematosus. J Rheumatol 1991; 18:1477-84. [PMID: 1765971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A review of rheumatic diseases in the southeast coastal Indians of Alaska revealed high frequencies of rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE). Both prevalence and incidence rates of RA were significantly higher and the peak age of incidence was younger in the southeast Alaskan Indian population than in Alaskan Eskimo groups and the United States population in general. The prevalence of SLE in the Alaskan Indian population was about twice that reported for most white populations. The frequency of seronegative spondyloarthropathic disorders was similar in the Alaskan Indian and Eskimo populations. Comparable studies of the prevalence of spondyloarthropathy in general have not been carried out in white populations. The prevalence rate of ankylosing spondylitis, one of the major types of spondyloarthropathy, did not differ significantly in the SE Indians from rates in predominantly white US populations.
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Affiliation(s)
- G S Boyer
- Internal Medicine Service, Alaska Native Medical Center, Anchorage 99501
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Boyer GS, Lanier AP, Templin DW, Bulkow L. Spondyloarthropathy and rheumatoid arthritis in Alaskan Yupik Eskimos. J Rheumatol Suppl 1990; 17:489-96. [PMID: 2348429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In a Yupik Eskimo population, the prevalence, incidence and clinical features of rheumatoid arthritis (RA) were similar to those described for the United States population in general. More frequent than RA were seronegative spondyloarthropathic disorders, many of which could not be classified by existing disease criteria. Of the adult patients with spondyloarthropathy only half could be classified as having Reiter's syndrome (RS), ankylosing spondylitis (AS) or psoriatic spondylitis. The remaining patients had many signs and symptoms consistent with spondyloarthropathy, but they either did not meet the diagnostic criteria for any specific disease or had features pathognomonic of more than one. The clinical manifestations of the patients who did not meet standard disease definitions are summarized and compared to those of the patients with RS, AS and psoriatic spondylitis. Because of the many shared features, we believe that these as yet unclassified disease states belong with AS and RS in a single spondyloarthropathic disease spectrum and should be defined and recognized as such.
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Affiliation(s)
- G S Boyer
- Internal Medicine Service, Alaska Native Medical Center, Anchorage
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Boyer GS, Lanier AP, Templin DW. Prevalence rates of spondyloarthropathies, rheumatoid arthritis, and other rheumatic disorders in an Alaskan Inupiat Eskimo population. J Rheumatol 1988; 15:678-83. [PMID: 3260953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We reviewed rheumatic diseases in an Inupiat Eskimo population and found a high frequency of seronegative spondyloarthritides. Most cases of juvenile arthritis, which occurred with particularly high incidence in male children (47.4/100,000), appeared to belong in the spondyloarthropathic category. Both Reiter's disease and undifferentiated spondyloarthropathy were common disorders in adults. The prevalence of ankylosing spondylitis (0.2%) was less than expected in a population with a high percentage of HLA-B27 positive individuals. The prevalence rates of rheumatoid arthritis (1.0%), gout (0.3%), and other rheumatic diseases were similar to those of the United States population in general.
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Affiliation(s)
- G S Boyer
- Internal Medicine Service, Alaska Native Medical Center, Anchorage
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