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001-es BibID:	BIBFORM007067
Első szerző:	Kapitány Anikó (molekuláris biológus)
Cím:	Association of rheumatoid arthritis with HLA-DR1 and HLA-DR4 in Hungary / Kapitany, A., Zilahi, E., Szanto, S., Szucs, G., Szabo, Z., Vegvari, A., Rass, P., Sipka, S., Szegedi, G., Szekanecz, Z.
Dátum:	2005
ISSN:	0077-8923 (Print)
Megjegyzések:	Susceptibility to and outcome for rheumatoid arthritis (RA) have been associated with particular HLA-DR alleles, but these alleles vary among ethnic groups and geographic areas. The frequency of HLA-DR1 (HLA-DRB10101, DRB10102) and HLA-DR4 (DRB10401, DRB10404) alleles is elevated among Caucasian patients with RA. We studied a northeastern Hungarian population of RA patients to determine the frequency of HLA-DR1 and HLA-DR4 phenotypes in this population and to compare it with healthy control subjects, as well as to investigate whether the presence of these alleles could be a marker for RA. We performed HLA-DRB1 genotyping (DRB101-DRB116) in 83 RA patients and 55 healthy controls using polymerase chain reaction with sequence-specific primers (PCR-SSP). In the case of HLA-DR1- or HLA-DR4-positive patients, the DR1 and DR4 subtypes were also determined. The frequency of HLA-DR4 alleles was significantly higher in RA patients than in controls (31.3 vs. 10.9%; P <.05). HLA-DR1, in particular, tended to be more frequent in patients than in controls (32.5 vs. 18.1%). Among the HLA-DR4 subtypes, DRB10401 and DRB10404 were the most common alleles found in both groups. However, no significant differences were seen in the frequency of HLA-DRB10401 and HLA-DRB10404 between RA patients and controls. In contrast, HLA-DRB10405 and HLA-DRB10408 were significantly more common in RA patients than in control subjects. Among HLA-DR1 subtypes, the DRB10101 allele was most commonly detected, but HLA-DRB10101 as well as DRB10102 and DRB10105 were similarly frequent in RA patients and controls. HLA-DR12 was more common among controls than in RA patients (18.1 vs. 0%; P <.05). Our results generally agree with the findings in other Caucasian populations. Nonetheless, we found differences in the frequency of HLA-DR1 and HLA-DR4 subtypes among Hungarian patients compared with reports from other geographic regions (e.g., Finland and Asia). Our data suggest that in northeastern Hungary, HLA-DR4 as well as its subtypes DRB10405 and DRB10408 may be involved in susceptibility to RA, but HLA-DR1 may not. In addition, the presence of HLA-DR12, at least in Hungary, may protect from this disease.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban Adolescent Adult Aged Aged, 80 and over Alleles Arthritis, Rheumatoid Female HLA-DR Antigens HLA-DR1 Antigen Humans Male Middle Aged
Megjelenés:	Annals of the New York Academy of Sciences. - 1051 (2005), p. 263-270. -
További szerzők:	Zilahi Erika (1964-) (molekuláris biológus) Szántó Sándor (1968-) (belgyógyász, reumatológus) Szűcs Gabriella (1963-) (belgyógyász, allergológus és klinikai immunológus, reumatológus) Szabó Zoltán (1970-) (belgyógyász, reumatológus) Végvári Anikó (belgyógyász, III. sz. Belgyógyászati Klinika) Rass Péter Sipka Sándor (1945-) (laboratóriumi szakorvos) Szegedi Gyula (1936-2013) (belgyógyász, immunológus) Szekanecz Zoltán (1964-) (reumatológus, belgyógyász, immunológus)
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001-es BibID:	BIBFORM007079
Első szerző:	Rass Péter
Cím:	Vitamin D receptor gene polymorphism in rheumatoid arthritis and associated osteoporosis / Rass, P., Pakozdi, A., Lakatos, P., Zilahi, E., Sipka, S., Szegedi, G., Szekanecz, Z.
Dátum:	2006
ISSN:	0172-8172
Megjegyzések:	Rheumatoid arthritis (RA) is commonly associated with decreased bone mineral density (BMD) due to numerous factors. BsmI polymorphism of the vitamin D receptor (VDR) gene has been implicated in the pathogenesis of osteoporosis. Vitamin D has several immunomodulatory effects and thus may play a role in the course of arthritis. However, little data is available on the possible relationship between RA and VDR gene polymorphisms. In this study, the frequency of BsmI polymorphism genotypes were compared with that found in other countries. In this study, 64 RA patients and 40 healthy controls were tested for VDR gene BsmI polymorphism genotypes. Frequencies of B and b alleles were associated with markers of bone metabolism and RA. Among control subjects, the frequency of the BB genotype is relatively high (27.5%). In RA with secondary osteopenia/osteoporosis the BB genotype was more rare, the bb was more common than in control subjects. Markers of bone metabolism were associated with the B allele. RA patients carrying the B allele had lower BMD and increased bone loss over 1 year. The B allele was also correlated with increased osteoclast and osteoblast function, as determined by the assessment of biochemical markers of bone metabolism. Rheumatoid factor titer, which is an independent marker for disease progression in RA, was higher in bb patients. Our data suggest, that the imbalance in B and b allele expression may be involved in the pathogenesis of RA-associated osteoporosis. The possible involvement of vitamin D and VDR gene polymorphisms in the development and progression of RA needs further elucidation.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban Adult Aged Alleles Arthritis, Rheumatoid Bone Density Deoxyribonucleases, Type II Site-Specific Female Genetic Markers Genetic Predisposition to Disease Genotype Humans Hungary Male Middle Aged Osteoporosis Polymorphism, Genetic Postmenopause Receptors, Calcitriol
Megjelenés:	Rheumatology International. - 26 : 11 (2006), p. 964-971. -
További szerzők:	Pákozdi Angéla Lakatos Péter Zilahi Erika (1964-) (molekuláris biológus) Sipka Sándor (1945-) (laboratóriumi szakorvos) Szegedi Gyula (1936-2013) (belgyógyász, immunológus) Szekanecz Zoltán (1964-) (reumatológus, belgyógyász, immunológus)
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