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Strömbeck B, Petersson I, Stamm T, Uhlig T, Woolf A, Vliet Vlieland T. SAT0441 Health care quality indicators on the management of rheumatoid arthritis and osteoarthritis: A systematic review (in the framework of the eumusc.net project). Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.3387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Petersson I, Strömbeck B, Stamm T, Uhlig T, Woolf A, Vliet Vlieland T. SAT0440 Health care quality indicators for rheumatoid arhtritis and osteoarthritis: The eumusc.net project. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.3386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Haglund E, Bergman S, Bremander A, Jacobsson L, Strömbeck B, Petersson I. AB0878 Self-reported productivity at work and sick leave in patients with spondyloarthritis:. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Haglund E, Bremander AB, Petersson IF, Strömbeck B, Bergman S, Jacobsson LTH, Turkiewicz A, Geborek P, Englund M. Prevalence of spondyloarthritis and its subtypes in southern Sweden. Ann Rheum Dis 2011; 70:943-8. [DOI: 10.1136/ard.2010.141598] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
ObjectiveTo estimate the prevalence of spondyloarthritis and its subtypes.MethodsThe Swedish healthcare organisation comprises a system where all inpatient and outpatient care is registered by a personal identifier. For the calendar years 2003–7, all residents aged ≥15 years in the southernmost county of Sweden (1.2 million inhabitants) diagnosed by a physician with spondyloarthritis (ankylosing spondylitis (AS), psoriatic arthritis (PsA), inflammatory arthritis associated with inflammatory bowel disease (Aa-IBD) or undifferentiated spondylarthritis (USpA)) were identified. To obtain valid point estimates of prevalence by the end of 2007, identification numbers were cross-referenced with the population register to exclude patients who had died or relocated.ResultsThe authors estimated the prevalence of spondyloarthritis (not including chronic reactive arthritis) as 0.45% (95% CI 0.44% to 0.47%). The mean (SD) age of patients with prevalent spondyloarthritis by the end of 2007 was 53 (15) years. Among the component subtypes, PsA accounted for 54% of cases, AS 21.4%, USpA 17.8% and Aa-IBD 2.3% with a prevalence of 0.25%, 0.12%, 0.10% and 0.015%, respectively. The remaining 6.4% had some form of combination of spondyloarthritis diagnoses. The prevalence of spondyloarthritis at large was about the same in men and women. However, the subtype PsA was more prevalent in women and AS was more prevalent in men.ConclusionIn Sweden the prevalence of spondyloarthritis leading to a doctor consultation is not much lower than rheumatoid arthritis. PsA was the most frequent subtype followed by AS and USpA, and the two most frequent subtypes PsA and AS also display some distinct sex patterns.
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Mitelman F, Strömbeck B, Ursing B, Nordle O, Hartley-Asp B. Metronidazole exhibits no clastogenic activity in a double-blind cross-over study on Crohn's patients. Hereditas 2008; 96:279-86. [PMID: 6125490 DOI: 10.1111/j.1601-5223.1982.tb00859.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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Brøgger A, Norum R, Hansteen IL, Clausen KO, Skårdal K, Mitelman F, Kolnig AM, Strömbeck B, Nordenson I, Andersson G. Comparison between five Nordic laboratories on scoring of human lymphocyte chromosome aberrations. Hereditas 2008; 100:209-18. [PMID: 6378833 DOI: 10.1111/j.1601-5223.1984.tb00121.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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Hedner K, Högstedt B, Kolnig AM, Mark-Vendel E, Strömbeck B, Mitelman F. Sister chromatid exchanges and structural chromosome aberrations in relation to smoking in 91 individuals. Hereditas 2008; 98:77-81. [PMID: 6853220 DOI: 10.1111/j.1601-5223.1983.tb00581.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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8
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Schaad K, Strömbeck B, Mandahl N, Andersen MK, Heim S, Mertens F, Johansson B. FISH mapping of i(7q) in acute leukemias and myxoid liposarcoma reveals clustered breakpoints in 7p11.2: implications for formation and pathogenetic outcome of the idic(7)(p11.2). Cytogenet Genome Res 2006; 114:126-30. [PMID: 16825763 DOI: 10.1159/000093327] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2005] [Accepted: 12/05/2005] [Indexed: 11/19/2022] Open
Abstract
Isochromosome 7q - i(7q) - is seen in a wide variety of hematologic malignancies and solid tumors, often as a secondary change to a characteristic primary translocation. Despite its high frequency, nothing is known about the formation and the pathogenetic outcome of this abnormality. To address these issues, we performed a detailed fluorescence in situ hybridization (FISH) investigation of four acute lymphoblastic leukemias, one acute myeloid leukemia, and two myxoid liposarcomas with i(7q). Using FISH with bacterial artificial chromosomes (BACs) mapping between 7p12.2 and 7q11.2, the breakpoints (BPs) in all seven cases were shown to cluster to an approximately 340 kb segment at 7p11.2, covered by the overlapping BAC probes RP11-760D2 and RP11-10F11. Thus, the i(7q) should formally be designated idic(7) (p11.2). In one of the cases, FISH with fosmids could narrow down the BP further to an 80-kb sequence delineated by G248P81983A10 and G248P8793H7. No known genes are located in the 340-kb BP cluster region, indicating that the idic(7)(p11.2) does not result in a fusion or deregulation of genes in this segment. The pathogenetically important outcome is thus likely to be an altered gene expression because of copy number changes. The clustering of breakpoints might be due to frequent intrachromosomal duplicons in the BP region.
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Affiliation(s)
- K Schaad
- Department of Clinical Genetics, Lund University Hospital, Sweden
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9
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Strömbeck B, Theander E, Jacobsson LTH. Assessment of fatigue in primary Sjögren's syndrome: the Swedish version of the Profile of Fatigue. Scand J Rheumatol 2006; 34:455-9. [PMID: 16393768 DOI: 10.1080/03009740510026571] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVE To translate the disease-specific Profile of Fatigue (ProF) into Swedish and to evaluate the reliability and validity of the Swedish version. METHODS Forward and back translations were performed. Seventy patients with primary Sjögren's syndrome (PSS), 48 control persons, and two rheumatologists participated. Test-retest reliability, internal consistency, content, construct and discriminant validity were investigated. RESULTS The translation was accepted without modifications. The test-retest reliability varied between moderate and good (weighted Kappa = 0.51-0.63). Internal consistency was high (Cronbach's alpha = 0.97). Construct validity was proved by significant correlations of the questionnaire items with the Visual Analogue Scale (VAS) for fatigue (r(s) = 0.55-0.70), and the Physical Function (PF) (r(s) = -0.20 to -0.41) and Vitality (VT) scales (r(s) = -0.60 to -0.77) of the MOS 36-Item Short-Form Health Survey (SF-36). Content validity was mainly judged as good. A significant difference between the scorings of the patients and the scorings of the control group was seen (mean difference 1.6, p<0.005). CONCLUSION The Swedish version of the ProF is a relatively reliable and valid instrument for the measurement of fatigue in patients with PSS.
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Affiliation(s)
- B Strömbeck
- Department of Rheumatology, Malmö University Hospital, Malmö, Sweden.
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10
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Paulsson K, Heidenblad M, Strömbeck B, Staaf J, Jönsson G, Borg A, Fioretos T, Johansson B. High-resolution genome-wide array-based comparative genome hybridization reveals cryptic chromosome changes in AML and MDS cases with trisomy 8 as the sole cytogenetic aberration. Leukemia 2006; 20:840-6. [PMID: 16498392 DOI: 10.1038/sj.leu.2404145] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Although trisomy 8 as the sole chromosome aberration is the most common numerical abnormality in acute myeloid leukemia (AML) and myelodysplastic syndromes (MDS), little is known about its pathogenetic effects. Considering that +8 is a frequent secondary change in AML/MDS, cryptic--possibly primary--genetic aberrations may occur in cases with trisomy 8 as the apparently single anomaly. However, no such hidden anomalies have been reported. We performed a high-resolution genome-wide array-based comparative genome hybridization (array CGH) analysis of 10 AML/MDS cases with isolated +8, utilizing a 32K bacterial artificial chromosome array set, providing >98% coverage of the genome with a resolution of 100 kb. Array CGH revealed intrachromosomal imbalances, not corresponding to known genomic copy number polymorphisms, in 4/10 cases, comprising nine duplications and hemizygous deletions ranging in size from 0.5 to 2.2 Mb. A 1.8 Mb deletion at 7p14.1, which had occurred prior to the +8, was identified in MDS transforming to AML. Furthermore, a deletion including ETV6 was present in one case. The remaining seven imbalances involved more than 40 genes. The present results show that cryptic genetic abnormalities are frequent in trisomy 8-positive AML/MDS cases and that +8 as the sole cytogenetic aberration is not always the primary genetic event.
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Affiliation(s)
- K Paulsson
- Department of Clinical Genetics, Lund University Hospital, Lund, Sweden.
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11
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Fioretos T, Panagopoulos I, Lassen C, Swedin A, Billström R, Isaksson M, Strömbeck B, Olofsson T, Mitelman F, Johansson B. Fusion of the BCR and the fibroblast growth factor receptor-1 (FGFR1) genes as a result of t(8;22)(p11;q11) in a myeloproliferative disorder: the first fusion gene involving BCR but not ABL. Genes Chromosomes Cancer 2001; 32:302-10. [PMID: 11746971 DOI: 10.1002/gcc.1195] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Constitutive activation of tyrosine kinases as a consequence of chromosomal translocations, forming fusion genes, plays an important role in the development of hematologic malignancies, in particular, myeloproliferative syndromes (MPSs). In this respect, the t(9;22)(q34;q11) that results in the BCR/ABL fusion gene in chronic myeloid leukemia is one of the best-studied examples. The fibroblast growth factor receptor 1 (FGFR1) gene at 8p11 encodes a transmembrane receptor tyrosine kinase and is similarly activated by chromosomal translocations, in which three alternative genes-ZNF198 at 13q12, CEP110 at 9q34, and FOP at 6q27-become fused to the tyrosine kinase domain of FGFR1. These 8p11-translocations are associated with characteristic morphologic and clinical features, referred to as "8p11 MPS." In this study, we report the isolation and characterization of a novel fusion gene in a hematologic malignancy with a t(8;22)(p11;q11) and features suggestive of 8p11 MPS. We show that the breakpoints in the t(8;22) occur within introns 4 and 8 of the BCR and FGFR1 genes, respectively. On the mRNA level, the t(8;22) results in the fusion of BCR exons 1-4 in-frame with the tyrosine kinase domain of FGFR1 as well as in the expression of a reciprocal FGFR1/BCR chimeric transcript. By analogy with data obtained from previously characterized fusion genes involving FGFR1 and BCR/ABL, it is likely that the oligomerization domain contributed by BCR is critical and that its dimerizing properties lead to aberrant FGFR1 signaling and neoplastic transformation.
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MESH Headings
- Aged
- Amino Acid Sequence
- Base Sequence
- Chromosome Breakage/genetics
- Chromosomes, Human, Pair 22/genetics
- Chromosomes, Human, Pair 8/genetics
- Genes, abl/genetics
- Humans
- Male
- Molecular Sequence Data
- Myeloproliferative Disorders/genetics
- Oncogene Proteins/genetics
- Oncogene Proteins, Fusion/genetics
- Protein-Tyrosine Kinases
- Proto-Oncogene Proteins
- Proto-Oncogene Proteins c-bcr
- Receptor Protein-Tyrosine Kinases/genetics
- Receptor, Fibroblast Growth Factor, Type 1
- Receptors, Fibroblast Growth Factor/genetics
- Transcription, Genetic
- Translocation, Genetic/genetics
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Affiliation(s)
- T Fioretos
- Department of Clinical Genetics, Lund University Hospital, Sweden.
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12
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Gisselsson D, Jonson T, Petersén A, Strömbeck B, Dal Cin P, Höglund M, Mitelman F, Mertens F, Mandahl N. Telomere dysfunction triggers extensive DNA fragmentation and evolution of complex chromosome abnormalities in human malignant tumors. Proc Natl Acad Sci U S A 2001; 98:12683-8. [PMID: 11675499 PMCID: PMC60114 DOI: 10.1073/pnas.211357798] [Citation(s) in RCA: 320] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2001] [Indexed: 01/16/2023] Open
Abstract
Although mechanisms for chromosomal instability in tumors have been described in animal and in vitro models, little is known about these processes in man. To explore cytogenetic evolution in human tumors, chromosomal breakpoint profiles were constructed for 102 pancreatic carcinomas and 140 osteosarcomas, two tumor types characterized by extensive genomic instability. Cases with few chromosomal alterations showed a preferential clustering of breakpoints to the terminal bands, whereas tumors with many changes showed primarily interstitial and centromeric breakpoints. The terminal breakpoint frequency was negatively correlated to telomeric TTAGGG repeat length, and fluorescence in situ hybridization with telomeric TTAGGG probes consistently indicated shortened telomeres and >10% of chromosome ends lacking telomeric signals. Because telomeric dysfunction may lead to formation of unstable ring and dicentric chromosomes, mitotic figures were also evaluated. Anaphase bridges were found in all cases, and fluorescence in situ hybridization demonstrated extensive structural rearrangements of chromosomes, with terminal transferase detection showing fragmented DNA in 5-20% of interphase cells. Less than 2% of cells showed evidence of necrosis or apoptosis, and telomerase was expressed in the majority of cases. Telomeric dysfunction may thus trigger chromosomal fragmentation through persistent bridge-breakage events in pancreatic carcinomas and osteosarcomas, leading to a continuous reorganization of the tumor genome. Telomerase expression is not sufficient for completely stabilizing the chromosome complement but may be crucial for preventing complete genomic deterioration and maintaining cellular survival.
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Affiliation(s)
- D Gisselsson
- Department of Clinical Genetics, University Hospital, SE-221 85 Lund, Sweden.
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13
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Johansson B, Axelsson P, Billström R, Strömbeck B, Arheden K, Olofsson T, Cervin A, Adriansson M, Tanke HJ, Mitelman F, Fioretos T. Isodicentric 7p, idic(7)(q11.2), in acute myeloid leukemia associated with older age and favorable response to induction chemotherapy: a new clinical entity? Genes Chromosomes Cancer 2001; 30:261-6. [PMID: 11170283 DOI: 10.1002/1098-2264(2000)9999:9999<::aid-gcc1087>3.0.co;2-a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Three adult de novo acute myeloid leukemias (AML M1, M2, and M4) with an isochromosome 7p are presented. No additional abnormalities were detected by G-band and multicolor, using combined binary ratio labeling, fluorescence in situ hybridization (FISH) analyses, indicating that the i(7p) was the sole, i.e., the primary, chromosomal aberration. Although the patients were elderly--68, 72, and 78 years old--they all responded very well to chemotherapy, achieving complete remission lasting more than a year. Further FISH analyses, using painting, centromeric, as well as 7q11.2-specific YAC probes, revealed that the i(7p) contained two centromeres and that the breakpoints were located in 7q11.2. Thus, the abnormality should formally be designated idic(7)(q11.2). The detailed mapping disclosed a breakpoint heterogeneity, with the breaks in 7q11.2 varying among the cases, being at least 1,310 kb apart. Furthermore, the breakpoints also differed within one of the cases, being located on both the proximal and the distal side of the most centromeric probe used. Based on our three patients, as well as on a previously reported 82-year-old patient with AML M2 and idic(7)(q11) as the only chromosomal change, we suggest that this abnormality, as the sole anomaly, is associated with AML in elderly patients who display a good response to induction chemotherapy and, hence, have a favorable prognosis. Furthermore, the heterogeneous breakpoints in 7q11.2 suggest that the important functional outcome of the idic(7)(q11.2) is the genomic imbalance incurred, i.e., gain of 7p and loss of 7q material, rather than a rearrangement of a specific gene.
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MESH Headings
- Aged
- Aged, 80 and over
- Aging/genetics
- Antimetabolites, Antineoplastic/therapeutic use
- Antineoplastic Combined Chemotherapy Protocols/therapeutic use
- Chromosome Banding
- Chromosomes, Human, Pair 7/genetics
- Cytarabine/therapeutic use
- Female
- Humans
- Idarubicin/therapeutic use
- In Situ Hybridization, Fluorescence/methods
- Isochromosomes/genetics
- Leukemia, Myeloid, Acute/drug therapy
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myelomonocytic, Acute/drug therapy
- Leukemia, Myelomonocytic, Acute/genetics
- Male
- Remission Induction
- Thioguanine/therapeutic use
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Affiliation(s)
- B Johansson
- Department of Clinical Genetics, Lund University Hospital, Sweden.
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14
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Panagopoulos I, Fioretos T, Isaksson M, Samuelsson U, Billström R, Strömbeck B, Mitelman F, Johansson B. Fusion of the MORF and CBP genes in acute myeloid leukemia with the t(10;16)(q22;p13). Hum Mol Genet 2001; 10:395-404. [PMID: 11157802 DOI: 10.1093/hmg/10.4.395] [Citation(s) in RCA: 164] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The CBP gene at 16p13 fuses to MOZ and MLL as a result of the t(8;16)(p11;p13) in acute (myelo)monocytic leukemias (AML M4/M5) and the t(11;16)(q23;p13) in treatment-related AML, respectively. We show here that a novel t(10;16)(q22;p13) in a childhood AML M5a leads to a MORF-CBP chimera. RT-PCR using MORF forward and CBP reverse primers amplified a MORF-CBP fusion in which nucleotide 3103 of MORF was fused in-frame with nucleotide 284 of CBP. Nested RT-PCR with CBP forward and MORF reverse primers generated a CBP-MORF transcript in which nucleotide 283 of CBP was fused in-frame with nucleotide 3104 of MORF. Genomic analyses revealed that the breaks were close to Alu elements in intron 16 of MORF and intron 2 of CBP and that duplications had occurred near the breakpoints. A database search using MORF cDNA enabled us to construct an exon-intron map of the MORF gene. The MORF-CBP protein retains the zinc fingers, two nuclear localization signals, the histone acetyltransferase (HAT) domain, a portion of the acidic domain of MORF and the CBP protein downstream of codon 29. Thus, the part of CBP encoding the RARA-binding domain, the CREB-binding domain, the three Cys/His-rich regions, the bromodomain, the HAT domain and the Glu-rich domains is present. In the reciprocal CBP-MORF, part of the acidic domain and the C-terminal Ser- and Met-rich regions of MORF are likely to be driven by the CBP promoter. Since both fusion transcripts were present, their exact role in the leukemogenic process remains to be elucidated.
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MESH Headings
- Acetyltransferases/genetics
- Amino Acid Sequence/genetics
- Base Sequence/genetics
- CREB-Binding Protein
- Child, Preschool
- Chromosome Banding
- Chromosomes, Human, Pair 10/genetics
- Chromosomes, Human, Pair 16/genetics
- Female
- Histone Acetyltransferases
- Humans
- Leukemia, Monocytic, Acute/enzymology
- Leukemia, Monocytic, Acute/genetics
- Molecular Sequence Data
- Nuclear Proteins/genetics
- Oncogene Proteins, Fusion/genetics
- Saccharomyces cerevisiae Proteins
- Trans-Activators/genetics
- Translocation, Genetic/genetics
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Affiliation(s)
- I Panagopoulos
- Department of Clinical Genetics, University Hospital, SE-221 85 Lund, Sweden.
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15
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Jin C, Martins C, Jin Y, Wiegant J, Wennerberg J, Dictor M, Gisselsson D, Strömbeck B, Fonseca I, Mitelman F, Tanke HJ, Höglund M, Mertens F. Characterization of chromosome aberrations in salivary gland tumors by FISH, including multicolor COBRA-FISH. Genes Chromosomes Cancer 2001; 30:161-7. [PMID: 11135432] [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: 02/18/2023] Open
Abstract
Fluorescence in situ hybridization (FISH), including COBRA-FISH, was used to characterize 11 salivary gland tumors that had been investigated by banding analysis. Five cases were pleomorphic adenoma (PA), three were adenoid cystic carcinoma, and one case each was mucoepidermoid carcinoma, carcinoma ex-pleomorphic adenoma (CaPA), and adenocarcinoma. All 11 cases were selected on the basis that they had shown rearrangement of 6q or 9p or had unresolved aberrations after karyotyping. The COBRA-FISH and FISH analyses led to a revised karyotype in all informative cases and made it possible to clarify almost all chromosomal rearrangements occurring in the tumors. Of particular note were the confirmation of the existence of 6q deletions, a common change in salivary gland carcinomas, and the demonstration that a seemingly balanced t(6;9) resulted in del(6q). Other rearrangements that were revealed by FISH included amplification of 12q sequences (MDM2 and CDK4) in one PA. We also investigated the status of the PLAG1 gene in four cases (one PA, one CaPA, one adenoid cystic carcinoma, and one mucoepidermoid carcinoma) with 8q12 rearrangements. Only in the former two cases were the FISH results compatible with intragenic rearrangements. Overall, the results of the study show that, even with good banding quality and in karyotypes of modest complexity, much new information will be gained by supplementing the banding analysis with a multicolor FISH approach, such as COBRA-FISH.
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Affiliation(s)
- C Jin
- Department of Clinical Genetics, University Hospital, Lund, Sweden.
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16
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Strömbeck B, Ekdahl C, Manthorpe R, Wikström I, Jacobsson L. Health-related quality of life in primary Sjögren's syndrome, rheumatoid arthritis and fibromyalgia compared to normal population data using SF-36. Scand J Rheumatol 2000; 29:20-8. [PMID: 10722254 DOI: 10.1080/030097400750001761] [Citation(s) in RCA: 130] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
OBJECTIVE To investigate the health-related quality of life in women with primary Sjogren's syndrome (prim SS) and compare with normative data and the health-related quality of life in women with rheumatoid arthritis (RA) and women with fibromyalgia. METHODS A questionnaire including the MOS Short-Form 36 (SF-36) was completed by 42 prim SS women, 59 RA women, and 44 women with fibromyalgia. RESULTS All three patient groups experienced a decreased quality of life level ranging from 5 to 65 % in all SF-36 scales compared to normative data. Differences between groups were seen in 7 of the 8 scales (p< or = 0.004). The prim SS patients experienced a higher quality of life level with regard to physical function than the women with RA and fibromyalgia, whereas in the psychological dimensions the quality of life level was comparable to that of the two other groups. CONCLUSION The health-related quality of life was significantly decreased as compared to norms in prim SS women and comparable to the levels of women with RA and fibromyalgia.
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Affiliation(s)
- B Strömbeck
- Department of Rheumatology, Malmö University Hospital, University of Lund, Sweden
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17
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Fioretos T, Strömbeck B, Sandberg T, Johansson B, Billström R, Borg A, Nilsson PG, Van Den Berghe H, Hagemeijer A, Mitelman F, Höglund M. Isochromosome 17q in blast crisis of chronic myeloid leukemia and in other hematologic malignancies is the result of clustered breakpoints in 17p11 and is not associated with coding TP53 mutations. Blood 1999; 94:225-32. [PMID: 10381517] [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: 02/13/2023] Open
Abstract
An isochromosome of the long arm of chromosome 17, i(17q), is the most frequent genetic abnormality observed during the disease progression of Philadelphia chromosome-positive chronic myeloid leukemia (CML), and has been described as the sole anomaly in various other hematologic malignancies. The i(17q) hence plays a presumably important pathogenetic role both in leukemia development and progression. This notwithstanding, the molecular consequences of this abnormality have not been investigated in detail. We have analyzed 21 hematologic malignancies (8 CML in blast crisis, 8 myelodysplastic syndromes [MDS], 2 acute myeloid leukemias, 2 chronic lymphocytic leukemias, and 1 acute lymphoblastic leukemia) with i(17q) by fluorescence in situ hybridization (FISH). Using a yeast artificial chromosome (YAC) contig, derived from the short arm of chromosome 17, all cases were shown to have a breakpoint in 17p. In 12 cases, the breaks occurred within the Smith-Magenis Syndrome (SMS) common deletion region in 17p11, a gene-rich region which is genetically unstable. In 10 of these 12 cases, we were able to further map the breakpoints to specific markers localized within a single YAC clone. Six other cases showed breakpoints located proximally to the SMS common deletion region, but still within 17p11, and yet another case had a breakpoint distal to this region. Furthermore, using chromosome 17 centromere-specific probes, it could be shown that the majority of the i(17q) chromosomes (11 of 15 investigated cases) were dicentric, ie, they contained two centromeres, strongly suggesting that i(17q) is formed through an intrachromosomal recombination event, and also implicating that the i(17q), in a formal sense, should be designated idic(17)(p11). Because i(17q) formation results in loss of 17p material, potentially uncovering the effect of a tumor suppressor on the remaining 17p, the occurrence of TP53 mutations was studied in 17 cases by sequencing the entire coding region. In 16 cases, no TP53 mutations were found, whereas one MDS displayed a homozygous deletion of TP53. Thus, our data suggest that there is no association between i(17q) and coding TP53 mutations, and that another tumor suppressor gene(s), located in proximity of the SMS common deletion region, or in a more distal location, is of pathogenetic importance in i(17q)-associated leukemia.
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Affiliation(s)
- T Fioretos
- Department of Clinical Genetics, Lund University Hospital, Sweden.
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18
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Jacobsson LT, Frithiof M, Olofsson Y, Runesson I, Strömbeck B, Wikström I. Evaluation of a structured multidisciplinary day care program in rheumatoid arthritis. A similar effect in newly diagnosed and long-standing disease. Scand J Rheumatol 1998; 27:117-24. [PMID: 9572637 DOI: 10.1080/030097498440985] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The present study evaluated a multidisciplinary structured day-care programme in patients with rheumatoid arthritis of less than 2 years (n = 41) and more than 2 years disease duration (n = 46). During the 3 week intervention, outcome measures reflecting disability (HAQ, SOFI), the patient's perception of disease and pain (VAS for patient's global assessment and pain), Ritchie articular index (RAI), a 44 swollen joint count, and overall disease activity (DAS) improved significantly in the group as a whole. The improvements remained significant after 15 weeks and were of a similar magnitude in the patient groups with short and long disease duration. At week 3 and 15, the ACR and the EULAR criteria for individual response, for the total study group was fulfilled by 28% and 26%, and 36% and 52% respectively. Evaluation of a subgroup 6 weeks prior to admission indicated that the outcome measures were stable at the time of the intervention. Furthermore, administration of intraarticular glucocorticosteroids (GC) could only partly explain the observed improvement. This uncontrolled observational study supports that a multidisciplinary day-care rehabilitation program is beneficial and feasible for patients with rheumatoid arthritis of both short and long duration.
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Affiliation(s)
- L T Jacobsson
- Department of Rheumatology, Malmö University Hospital, Sweden
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19
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Lindroth Y, Brattström M, Bellman I, Ekestaf G, Olofsson Y, Strömbeck B, Stenshed B, Wikström I, Nilsson JA, Wollheim FA. A problem-based education program for patients with rheumatoid arthritis: evaluation after three and twelve months. Arthritis Care Res 1997; 10:325-32. [PMID: 9362599 DOI: 10.1002/art.1790100507] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To develop and evaluate the effect of a new arthritis education program based on a previous study. METHODS One hundred individuals with established rheumatoid arthritis randomized to an intervention group or a control group completed self-report questionnaires. RESULTS Three months after the education program the patients in the intervention group had increased their knowledge about their disease. They reported increased practice of exercise and joint protection and reduction of disability and pain. After 12 months, increased knowledge and practice of joint protection was maintained. However, there was no longer any difference between the intervention group and the control group regarding reported pain, disability, and practice of exercise. At both intervals the individuals in the intervention group reported an increased ability to handle their pain and a reduction of problems with their disease. The control group remained stable except for a slight increase in pain. CONCLUSION A structured patient education program had positive impact for 3 months, and some improvements were maintained for 12 months. We suggest that patient education should become an integrated part of the total management of rheumatoid arthritis.
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Affiliation(s)
- Y Lindroth
- Rheumatology Department, University Hospital, Malmö, Sweden
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20
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Andreasson P, Johansson B, Strömbeck B, Donnér M, Mitelman F, Höglund M. Childhood acute lymphoblastic leukaemia with ider(21)(q10)t(12;21)(p12;q22): a new recurrent abnormality showing ETV6/CBFA2 fusion. Br J Haematol 1997; 98:216-8. [PMID: 9233588 DOI: 10.1046/j.1365-2141.1997.1652982.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The cytogenetically unidentifiable t(12;21)(p12:q22), resulting in ETV6/CBFA2 fusion, is the most frequent chromosomal aberration in childhood acute lymphoblastic leukaemia ALL). We report a variant, ider(21)(q10)t(12:21)(p12;q22), which was shown to contain double ETV6/CBFA2 fusions by fluorescence in situ hybridization. This is the second case of such an ider(21) in childhood ALL, suggesting that it is a new recurrent abnormality. Since the ider(21) is cytogenetically indistinguishable from i(21)(q10) and idic(21)(p11), changes associated with similar clinical features as the t(12;21), i.e. pre-B-cell ALL and age 1-10 years, we suggest that all ALL displaying these changes should be tested for ETV6/CBFA2 fusion transcript.
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Affiliation(s)
- P Andreasson
- Department of Clinical Genetics, Lund University Hospital, Sweden
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21
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Billström R, Johansson B, Strömbeck B, el-Rifai W, Larramendy M, Olofsson T, Mitelman F, Knuutila S. Clonal CD5-positive B lymphocytes in myelodysplastic syndrome with systemic vasculitis and trisomy 8. Ann Hematol 1997; 74:37-40. [PMID: 9031614 DOI: 10.1007/s002770050253] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Bone marrow and peripheral blood from a myelodysplastic syndrome (MDS) patient with trisomy 8 and associated systemic vasculitis was investigated for clonal lymphoid lineage involvement using simultaneous metaphase and interphase fluorescence in situ hybridization (FISH) and immunocytochemistry with antibodies against CD13 (granulocytic), glycophorin A (GPA, erythroid), and the lymphocytic antigens CD3. CD5, CD20, and CD22. Trisomy 8 was detected in 55% of CD13+, 40% of GPA+, 6% of CD5+, and 5% of CD20/22+, but not in CD3+ cells. In a complementary experiment using interphase FISH on bone marrow cells sorted by flow cytometry, 13% of CD5/CD19 double-positive cells (76% purity) were found to be trisomic. The results indicate the existence of a small CD5-positive B-lymphoid clone as part of the MDS process in this patient. Since CD5/19-positive cells have been proposed to be autoantibody producing, this finding might be a clue to the pathogenesis underlying the propensity for MDS patients to develop immune-mediated complications.
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Affiliation(s)
- R Billström
- Department of Medicine, University Hospital, Lund, Sweden
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22
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Nystedt S, Emilsson K, Larsson AK, Strömbeck B, Sundelin J. Molecular cloning and functional expression of the gene encoding the human proteinase-activated receptor 2. Eur J Biochem 1995; 232:84-9. [PMID: 7556175 DOI: 10.1111/j.1432-1033.1995.tb20784.x] [Citation(s) in RCA: 243] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We previously reported the molecular cloning of a mouse guanosine-nucleotide-binding-protein-coupled receptor similar to the thrombin receptor. Since the physiological agonist was unknown, the receptor was named proteinase-activated receptor 2. We describe here the cloning and functional expression of the gene encoding the corresponding human receptor. The gene is divided into two exons separated by about 14 kb intronic DNA. The deduced protein sequence is 397 amino acids long and 83% identical to the mouse receptor sequence. Within the extracellular amino terminus, the residues predicted to form the tethered agonist ligand differ between the two receptors; of the first six residues only four are conserved. At positions five and six, a lysine residue and a valine residue, respectively, have replaced arginine and leucine residues found in the mouse sequence. When the human receptor is expressed in Chinese hamster ovary cells, it can be activated by low nanomolar concentrations of the serine proteinase trypsin and by peptides made from the receptor sequence. Northern-blot analysis of receptor expression showed that the receptor transcript is widely expressed in human tissues with especially high levels in pancreas, liver, kidney, small intestine and colon. Moderate expression was detected in many organs but none in brain or skeletal muscle. By fluorescence in situ hybridization, the human proteinase-activated receptor 2 gene was mapped to chromosomal region 5q13, where, previously, the related thrombin receptor gene has been located.
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Affiliation(s)
- S Nystedt
- Division of Molecular Neurobiology, Wallenberg Laboratory, Lund University, Sweden
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23
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Lindroth Y, Strömbeck B, Brossner M, Gullberg B, Wollheim FA. Learned helplessness and its correlation to impairment, pain, anxiety and depression in rheumatoid arthritis. Scand J Rheumatol 1994; 23:299-304. [PMID: 7801053 DOI: 10.3109/03009749409099277] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A Swedish version of the self-report instrument Arthritis Helplessness Index (AHI) is presented. Validity and reliability of the translation has been analyzed. 100 consecutive patients with rheumatoid arthritis (RA) were studied, 78 of which completed 2 self-administered questionnaires with AHI, impairment, pain, anxiety and depression. Furthermore 20 of the patients were interviewed with regard to AHI. Forty-two other patients with RA were analyzed for correlation between AHI and biochemical activity and Signals of Functional Impairment (SOFI). We conclude that the Swedish version of AHI has satisfactory validity and reliability. It correlates with age, physical impairment, pain, anxiety and depression but not with sex or disease activity. Five of the original 15 items could for various reasons be omitted, leaving a 10 statement instrument. AHI is promising as a variable in future outcome studies of RA.
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Affiliation(s)
- Y Lindroth
- Dept. of Rheumatology, Malmö General Hospital, Sweden
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24
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Abstract
Cytogenetic investigation of multiple uterine leiomyomas from the same patient revealed karyotypes containing cytogenetically indistinguishable del(7)(q21.2q31.2) in two of the tumors. Since this finding seemed to contradict the conclusion from previous glucose-6-phosphate dehydrogenase studies of multiple uterine leiomyomas in which an independent origin of these tumors was found, we assessed clonal tumor origin by DNA-recombinant X-chromosome inactivation analysis. The two leiomyomas with del(7)(q21.2q31.2) had different inactivated X-chromosomes. This proves that they originated independently and indicates that their cytogenetic similarity was coincidental.
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Affiliation(s)
- M Nilbert
- Department of Clinical Genetics, University Hospital, Lund, Sweden
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25
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Boldog F, Arheden K, Imreh S, Strömbeck B, Szekely L, Erlandsson R, Marcsek Z, Sumegi J, Mitelman F, Klein G. Involvement of 3p deletions in sporadic and hereditary forms of renal cell carcinoma. Genes Chromosomes Cancer 1991; 3:403-6. [PMID: 1797089 DOI: 10.1002/gcc.2870030513] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Deletions of the short arm of chromosome 3 and associated allele losses have been reported in the majority of sporadic renal cell carcinomas (RCC). On the basis of the combined cytogenetic and molecular data, it is reasonable to assume that a putative RCC locus, which contributes to tumor development by its loss, is located telomerically of the D3F15S2 site. Using H3E4, a D3F15S2-specific probe, we have isolated a cDNA clone (cl.4-2), and a sequence comparison revealed that the cDNA clone corresponds to the human acyl-peptide hydrolase gene. The gene is fairly universally expressed, but in RCC biopsies its expression is severely reduced, compared to the normal kidney. Cl.4-2 was used for in situ hybridization on metaphase chromosomes prepared from an Epstein-Barr virus (EBV) transformed lymphoblastoid cell line, derived from a t(3;8) (p14.2;q24.1) carrying member of the RCC family described by Cohen et al. in 1979 (N Engl J Med: 301:592-595). Carriers of this translocation regularly develop RCC by middle age. We now report that D3F15S2 is localized on the telomeric side of the constitutional breakpoint, in 3p21. The region of 3p affected by this familial translocation is thus not identical with the region of 3p most frequently deleted in sporadic RCC.
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Affiliation(s)
- F Boldog
- Department of Tumor Biology, Karolinska Institute, Stockholm, Sweden
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26
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Mitelman F, Kolnig AM, Strömbeck B, Norrby R, Kromann-Andersen B, Sommer P, Wadstein J. No cytogenetic effects of quinolone treatment in humans. Antimicrob Agents Chemother 1988; 32:936-7. [PMID: 3166361 PMCID: PMC172312 DOI: 10.1128/aac.32.6.936] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Cytogenetic effects of ciprofloxacin (500 to 2,000 mg daily) and ofloxacin (200 mg daily) were studied in lymphocytes from 31 patients treated for 1 to 10 weeks. Blood samples for cytogenetic analysis were taken before the start of treatment from all patients, after 1 week from 25 patients, and after 2, 4, 6, and 10 weeks from six patients. No chromosome-damaging effect could be demonstrated in any treatment group. The mean aberration yields for each cytogenetic parameter studied and the total number of aberrations were all normal at each sampling occasion.
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Affiliation(s)
- F Mitelman
- Department of Clinical Genetics, University Hospital, Lund, Sweden
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27
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Arheden K, Mandahl N, Strömbeck B, Isaksson M, Mitelman F. Chromosome localization of the human oncogene INT1 to 12q13 by in situ hybridization. Cytogenet Cell Genet 1988; 47:86-7. [PMID: 3281802 DOI: 10.1159/000132513] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The human oncogene INT1 has been mapped to chromosome band 12q13 by in situ hybridization. The precise localization of this gene is of particular interest, since the region 12q13----q14 has been reported to be involved in chromosomal rearrangements in lipomas, myxoid liposarcomas, pleomorphic adenomas, and myomas. The involvement of this region in both benign and malignant tumors suggests a common pathogenetic pathway in which changes affecting INT1 may be an important step.
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Affiliation(s)
- K Arheden
- Department of Clinical Genetics, University Hospital, Lund, Sweden
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28
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Hedner K, Kolnig AM, Strömbeck B, Nordén A, Mitelman F. A twin study of structural chromosome aberrations in lymphocytes. Cytogenet Cell Genet 1986; 41:58-9. [PMID: 3943370 DOI: 10.1159/000132198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Structural chromosome aberrations were analyzed in peripheral lymphocytes of eight monozygotic (MZ) and seven dizygotic (DZ) pairs of male twins. There was no significant intrapair difference in the variance of aberration frequencies among the MZ and DZ twins. Thus, there was no evidence of a major genetic influence on the development of structural chromosome aberrations. Although a genetic component could not be excluded, it was concluded that any chromosome aberrations observed were probably due mainly to environmental influences.
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29
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Heim S, Billström R, Kristoffersson U, Mandahl N, Strömbeck B, Mitelman F. Variant Ph translocations in chronic myeloid leukemia. Cancer Genet Cytogenet 1985; 18:215-27. [PMID: 3863698 DOI: 10.1016/0165-4608(85)90086-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Variant translocations were found in eight of 142 consecutive patients with Ph-positive, chronic myeloid leukemia encountered in our laboratory during the last decade. Two patients had simple, two-way variant translocations: t(17;22)(p13;q11) and t(16;22)(q24;q11). Both of these patients had an additional translocation involving chromosomes #9: t(7;9)(q22;q34) and t(9;17)(q34;q21), respectively. Complex variant translocations were found in four cases: t(2;9;22)(p23q12;q34;q11), t(3;9;22)(p21;q34;q11), t(9;12;22)(q34;q13;q11q13), and t(13;17;22)(p11;p11q21;q11). In two cases, the only discernable cytogenetic aberration was del(22)(q11). A review of the chromosomal breakpoints involved in this series and in 185 cases of variant Ph translocations previously reported in the literature reveals that a disproportionately large number of breakpoints are located in light-staining regions of G-banded chromosomes. Furthermore, the breakpoints in simple variant translocations are more often located in terminal chromosomal regions, whereas, the breakpoints in complex translocations typically affect nonterminal bands. No obvious correlation was detected between variant Ph translocation breakpoints and either fragile sites, oncogene locations, or consistent chromosome breakpoints in other malignancies.
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30
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Heim S, Johansen SG, Kolnig AM, Strömbeck B. Increased levels of spontaneous and mutagen-induced chromosome aberrations in skin fibroblasts from patients with adenomatosis of the colon and rectum. Cancer Genet Cytogenet 1985; 17:333-46. [PMID: 4016717 DOI: 10.1016/0165-4608(85)90117-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Fibroblast cell strains were established from skin biopsies taken from patients with adenomatosis of the colon and rectum (ACR) and their relatives. A total of 57 different strains (33 from patients and 24 from healthy members of ACR families not at an increased risk for colon polyposis) were tested for their frequencies of spontaneous structural chromosome aberrations, i.e., chromatid and isochromatid gaps, breaks, and interchanges. In 47 strains (27 from patients, 20 from controls), the frequencies of structural chromosome aberrations were also determined after exposing the cells to N-methyl-N'-nitro-N-nitroso-guanidine (MNNG). Both spontaneously and after mutagen treatment, the group of patient strains exhibited, on average, approximately twice the number of chromosome aberrations found in the control group. This increase was highly significant (p less than 0.001), even though there was a considerable overlap between patient and control strains. Treatment with MNNG led to a marked increase in chromosome aberrations in both patients and controls. The small differences in aberration frequencies seen between Gardner and other patient strains were clearly insignificant.
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31
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Hedner K, Högstedt B, Kolnig AM, Mark-Vendel E, Strömbeck B, Mitelman F. Relationship between sister chromatid exchanges and structural chromosome aberrations in lymphocytes of 100 individuals. Hereditas 1982; 97:237-45. [PMID: 7161121 DOI: 10.1111/j.1601-5223.1982.tb00768.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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32
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Hedner K, Högstedt B, Kolnig AM, Mark-Vendel E, Strömbeck B, Mitelman F. Sister chromatid exchanges and structural chromosome aberrations in relation to age and sex. Hum Genet 1982; 62:305-9. [PMID: 7166305 DOI: 10.1007/bf00304544] [Citation(s) in RCA: 72] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Sister chromatid exchanges (SCE) and structural chromosome aberrations were analyzed in peripheral blood lymphocytes of 100 individuals, and correlated to age and sex. No correlation was found between the frequency of SCE and age, but older individuals had significantly more structural aberrations than younger. Females had significantly more SCE as well as structural chromosome aberrations than males. The positive correlations of SCE and structural aberrations to age and sex were also significant when these factors, as well as smoking habits, were taken into consideration in an analysis of covariance.
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