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Dumontet C, Demangel D, Galia P, Karlin L, Roche L, Fauvernier M, Golfier C, Laude M, Leleu X, Rodon P, Roussel M, Azaïs I, Doyen C, Slama B, Manier S, Decaux O, Pertesi M, Beaumont M, Caillot D, Boyle EM, Cliquennois M, Cony‐Makhoul P, Doncker A, Dorvaux V, Petillon MO, Fontan J, Hivert B, Leduc I, Leyronnas C, Macro M, Maigre M, Mariette C, Mineur P, Rigaudeau S, Royer B, Vincent L, Mckay J, Perrial E, Garderet L. Clinical characteristics and outcome of 318 families with familial monoclonal gammopathy: A multicenter Intergroupe Francophone du Myélome study. Am J Hematol 2023; 98:264-271. [PMID: 36588407 PMCID: PMC10107808 DOI: 10.1002/ajh.26785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 10/10/2022] [Accepted: 10/24/2022] [Indexed: 01/03/2023]
Abstract
Familial forms of monoclonal gammopathy, defined as multiple myeloma (MM) or Monoclonal Gammopathy of Undetermined Significance (MGUS), are relatively infrequent and most series reported in the literature describe a limited number of families. MM rarely occurs in a familial context. MGUS is observed much more commonly, which can in some cases evolve toward full-blown MM. Although recurrent cytogenetic abnormalities have been described in tumor cells of sporadic cases of MM, the pathogenesis of familial MM remains largely unexplained. In order to identify genetic factors predisposing to familial monoclonal gammopathy, the Intergroupe Francophone du Myélome identified 318 families with at least two confirmed cases of monoclonal gammopathy. There were 169 families with parent/child pairs and 164 families with cases in at least two siblings, compatible with an autosomal transmission. These familial cases were compared with sporadic cases who were matched for age at diagnosis, sex and immunoglobulin isotype, with 10 sporadic cases for each familial case. The gender distribution, age and immunoglobulin subtypes of familial cases were unremarkable in comparison to sporadic cases. With a median follow-up of 7.4 years after diagnosis, the percentage of MGUS cases having evolved to MM was 3%. The median overall survival of the 148 familial MM cases was longer than that of matched sporadic cases, with projected values of 7.6 and 16.1 years in patients older and younger than 65 years, respectively. These data suggest that familial cases of monoclonal gammopathy are similar to sporadic cases in terms of clinical presentation and carry a better prognosis.
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Affiliation(s)
- Charles Dumontet
- Hospices Civils de LyonLyonFrance
- CRCL, UMR INSERM 1052/CNRS 5286/University of Lyon‐FranceLyonFrance
| | | | | | | | | | | | | | | | | | | | | | | | | | - Borhane Slama
- Clinical Hematology DepartmentCH AvignonAvignonFrance
| | | | - Olivier Decaux
- Hematology DepartmentCHU Rennes, Inserm UMR1236RennesFrance
| | - Maroulio Pertesi
- Genetic Cancer Susceptibility, International Agency for Research on CancerLyonFrance
- Department of Laboratory MedicineHematology and Transfusion MedicineLundSweden
| | | | - Denis Caillot
- Clinical Hematology DepartmentHôpital F. Mitterrand, CHU DijonDijonFrance
| | - Eileen M. Boyle
- Perlmutter Cancer CenterNYU Langone HealthNew YorkNew YorkUSA
| | | | | | | | - Véronique Dorvaux
- Clinical Hematology DepartmentCHR Metz‐ThionvilleMetz‐ThionvilleFrance
| | | | - Jean Fontan
- Hematology DepartmentCHU BesançonBesançonFrance
| | | | | | | | | | - Michel Maigre
- Internal Medicine DepartmentCH ChartresChartresFrance
| | | | - Philippe Mineur
- Clinical Hematology DepartmentGrand Hôpital de CharleroiCharleroiBelgium
| | | | - Bruno Royer
- Clinical Hematology and Cell Therapy DepartmentAmiensFrance
| | | | - James Mckay
- Genetic Cancer Susceptibility, International Agency for Research on CancerLyonFrance
| | - Emeline Perrial
- CRCL, UMR INSERM 1052/CNRS 5286/University of Lyon‐FranceLyonFrance
| | - Laurent Garderet
- HU PITIE SALPETRIERE APHPParisFrance
- Centre de Recherche Saint‐Antoine‐Team Hematopoietic and Leukemic DevelopmentSorbonne Université‐INSERM, UMR_S 938ParisFrance
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Vlachová M, Gregorová J, Vychytilová-Faltejsková P, Gabło NA, Radová L, Pospíšilová L, Almáši M, Štork M, Knechtová Z, Minařík J, Popková T, Jelínek T, Hájek R, Pour L, Říhová L, Ševčíková S. Involvement of Small Non-Coding RNA and Cell Antigens in Pathogenesis of Extramedullary Multiple Myeloma. Int J Mol Sci 2022; 23:ijms232314765. [PMID: 36499093 PMCID: PMC9741227 DOI: 10.3390/ijms232314765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 11/21/2022] [Accepted: 11/21/2022] [Indexed: 11/29/2022] Open
Abstract
Extramedullary multiple myeloma (EMD) is an aggressive disease; malignant plasma cells lose their dependence in the bone marrow microenvironment and migrate into tissues. EMD is a negative prognostic factor of survival. Using flow cytometry and next-generation sequencing, we aimed to identify antigens and microRNAs (miRNAs) involved in EMD pathogenesis. Flow cytometry analysis revealed significant differences in the level of clonal plasma cells between MM and EMD patients, while the expression of CD markers was comparable between these two groups. Further, miR-26a-5p and miR-30e-5p were found to be significantly down-regulated in EMD compared to MM. Based on the expression of miR-26a-5p, we were able to distinguish these two groups of patients with high sensitivity and specificity. In addition, the involvement of deregulated miRNAs in cell cycle regulation, ubiquitin-mediated proteolysis and signaling pathways associated with infections or neurological disorders was observed using GO and KEGG pathways enrichment analysis. Subsequently, a correlation between the expression of analyzed miRNAs and the levels of CD molecules was observed. Finally, clinicopathological characteristics as well as CD antigens associated with the prognosis of MM and EMD patients were identified. Altogether, we identified several molecules possibly involved in the transformation of MM into EMD.
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Affiliation(s)
- Monika Vlachová
- Babak Myeloma Group, Department of Pathophysiology, Faculty of Medicine, Masaryk University, 625 00 Brno, Czech Republic
| | - Jana Gregorová
- Babak Myeloma Group, Department of Pathophysiology, Faculty of Medicine, Masaryk University, 625 00 Brno, Czech Republic
| | - Petra Vychytilová-Faltejsková
- Babak Myeloma Group, Department of Pathophysiology, Faculty of Medicine, Masaryk University, 625 00 Brno, Czech Republic
- Centre for Molecular Medicine, Central European Institute of Technology, Masaryk University, 625 00 Brno, Czech Republic
| | - Natalia Anna Gabło
- Centre for Molecular Medicine, Central European Institute of Technology, Masaryk University, 625 00 Brno, Czech Republic
| | - Lenka Radová
- Centre for Molecular Medicine, Central European Institute of Technology, Masaryk University, 625 00 Brno, Czech Republic
| | - Lenka Pospíšilová
- Institute of Biostatistics and Analyses, Faculty of Medicine, Masaryk University, 625 00 Brno, Czech Republic
| | - Martina Almáši
- Department of Clinical Hematology, University Hospital Brno, 625 00 Brno, Czech Republic
| | - Martin Štork
- Department of Internal Medicine, Hematology and Oncology, University Hospital Brno, 625 00 Brno, Czech Republic
| | - Zdeňka Knechtová
- Department of Internal Medicine, Hematology and Oncology, University Hospital Brno, 625 00 Brno, Czech Republic
| | - Jiří Minařík
- Department of Hemato-Oncology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, 779 00 Olomouc, Czech Republic
| | - Tereza Popková
- Department of Hematooncology, University Hospital Ostrava, Ostrava, and Faculty of Medicine, University Ostrava, 708 00 Ostrava, Czech Republic
| | - Tomáš Jelínek
- Department of Hematooncology, University Hospital Ostrava, Ostrava, and Faculty of Medicine, University Ostrava, 708 00 Ostrava, Czech Republic
| | - Roman Hájek
- Department of Hematooncology, University Hospital Ostrava, Ostrava, and Faculty of Medicine, University Ostrava, 708 00 Ostrava, Czech Republic
| | - Luděk Pour
- Department of Internal Medicine, Hematology and Oncology, University Hospital Brno, 625 00 Brno, Czech Republic
| | - Lucie Říhová
- Department of Clinical Hematology, University Hospital Brno, 625 00 Brno, Czech Republic
| | - Sabina Ševčíková
- Babak Myeloma Group, Department of Pathophysiology, Faculty of Medicine, Masaryk University, 625 00 Brno, Czech Republic
- Correspondence: ; Tel.: +420-549-493-380
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A meta-analysis of genome-wide association studies of multiple myeloma among men and women of African ancestry. Blood Adv 2021; 4:181-190. [PMID: 31935283 DOI: 10.1182/bloodadvances.2019000491] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 08/07/2019] [Indexed: 02/07/2023] Open
Abstract
Persons of African ancestry (AA) have a twofold higher risk for multiple myeloma (MM) compared with persons of European ancestry (EA). Genome-wide association studies (GWASs) support a genetic contribution to MM etiology in individuals of EA. Little is known about genetic risk factors for MM in individuals of AA. We performed a meta-analysis of 2 GWASs of MM in 1813 cases and 8871 controls and conducted an admixture mapping scan to identify risk alleles. We fine-mapped the 23 known susceptibility loci to find markers that could better capture MM risk in individuals of AA and constructed a polygenic risk score (PRS) to assess the aggregated effect of known MM risk alleles. In GWAS meta-analysis, we identified 2 suggestive novel loci located at 9p24.3 and 9p13.1 at P < 1 × 10-6; however, no genome-wide significant association was noted. In admixture mapping, we observed a genome-wide significant inverse association between local AA at 2p24.1-23.1 and MM risk in AA individuals. Of the 23 known EA risk variants, 20 showed directional consistency, and 9 replicated at P < .05 in AA individuals. In 8 regions, we identified markers that better capture MM risk in persons with AA. AA individuals with a PRS in the top 10% had a 1.82-fold (95% confidence interval, 1.56-2.11) increased MM risk compared with those with average risk (25%-75%). The strongest functional association was between the risk allele for variant rs56219066 at 5q15 and lower ELL2 expression (P = 5.1 × 10-12). Our study shows that common genetic variation contributes to MM risk in individuals with AA.
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Yang Y, Lin J, Ma Z, Li J, Li D, Wang B, Fei Q. Potential roles of microRNAs and their target genes in human multiple myeloma. Eur J Haematol 2017; 99:178-185. [PMID: 28467652 DOI: 10.1111/ejh.12901] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/24/2017] [Indexed: 12/31/2022]
Affiliation(s)
- Yong Yang
- Department of Orthopedics; Beijing Friendship Hospital; Capital Medical University; Beijing China
| | - Jisheng Lin
- Department of Orthopedics; Beijing Friendship Hospital; Capital Medical University; Beijing China
| | - Zhao Ma
- Department of Orthopedics; Beijing Friendship Hospital; Capital Medical University; Beijing China
| | - Jinjun Li
- Department of Orthopedics; Beijing Friendship Hospital; Capital Medical University; Beijing China
| | - Dong Li
- Department of Orthopedics; Beijing Friendship Hospital; Capital Medical University; Beijing China
| | - Bingqiang Wang
- Department of Orthopedics; Beijing Friendship Hospital; Capital Medical University; Beijing China
| | - Qi Fei
- Department of Orthopedics; Beijing Friendship Hospital; Capital Medical University; Beijing China
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Raninga PV, Di Trapani G, Vuckovic S, Tonissen KF. Targeted knockdown of DJ-1 induces multiple myeloma cell death via KLF6 upregulation. Apoptosis 2016; 21:1422-1437. [DOI: 10.1007/s10495-016-1303-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Affiliation(s)
- Richard J. Q. McNally
- Leukaemia Research Fund Centre for Clinical Epidemiology at the University of Leeds, 17 Springfield Mount, Leeds, LS2 9NG
| | - Ray A. Cartwright
- Leukaemia Research Fund Centre for Clinical Epidemiology at the University of Leeds, 17 Springfield Mount, Leeds, LS2 9NG
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Shimanovsky A, Alvarez Argote J, Murali S, Dasanu CA. Autoimmune manifestations in patients with multiple myeloma and monoclonal gammopathy of undetermined significance. BBA CLINICAL 2016; 6:12-8. [PMID: 27331023 PMCID: PMC4900299 DOI: 10.1016/j.bbacli.2016.05.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Revised: 05/15/2016] [Accepted: 05/23/2016] [Indexed: 12/20/2022]
Abstract
Background Multiple myeloma (MM) and its precursor, monoclonal gammopathy of undetermined significance (MGUS), have been linked with several autoimmune conditions in the medical literature. Yet, significance of these associations is not well understood. Methods Herein, we provide a comprehensive literature review on autoimmune disorders identified in patients with MM and MGUS. Most relevant papers were identified via searching the PubMed/Medline and EMBASE databases for articles published from inception until May 1, 2016. Findings Scientific literature on autoimmune conditions in patients with MM and MGUS consists of several case series and a multitude of case reports. Our analysis suggests an increased prevalence of autoimmune conditions in patients with MM and monoclonal gammopathy of undetermined significance (MGUS), including various autoimmune hematologic and rheumatologic conditions among other entities. Conversely, persons with various autoimmune conditions tend to have a higher prevalence of MGUS and MM than the general population. Conclusions Future research is required to explore further the link between MGUS/MM and autoimmune disorders. Inflammation in the setting of autoimmunity may serve as a trigger for MGUS and MM. In addition, a common genetic susceptibility for developing both an autoimmune disease and MM/MGUS might also exist. Autoimmune hematologic and rheumatologic diseases may pose important clinical problems for the MM patients. Therefore, a catalogue of these problems is important so that physicians are able to consider, identify and address them promptly. A comprehensive review linking MM and MGUS with autoimmune disorders There is increased prevalence of autoimmune conditions in patients with MM and MGUS Most autoimmune disorders precede the development of plasma cell dyscrasias
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Affiliation(s)
- Alexei Shimanovsky
- Department of Hematology and Oncology, University of Connecticut Health Science Center, Farmington, CT, USA
| | - Juliana Alvarez Argote
- Department of Medicine, University of Connecticut Health Science Center, Farmington, CT, USA
| | - Shruti Murali
- Department of Medicine, University of Connecticut Health Science Center, Farmington, CT, USA
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Alexander DD, Mink PJ, Adami HO, Cole P, Mandel JS, Oken MM, Trichopoulos D. Multiple myeloma: A review of the epidemiologic literature. Int J Cancer 2007; 120 Suppl 12:40-61. [PMID: 17405120 DOI: 10.1002/ijc.22718] [Citation(s) in RCA: 201] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Multiple myeloma, a neoplasm of plasma cells, accounts for approximately approximately 15% of lymphatohematopoietic cancers (LHC) and 2% of all cancers in the US. Incidence rates increase with age, particularly after age 40, and are higher in men, particularly African American men. The etiology is unknown with no established lifestyle, occupational or environmental risk factors. Although several factors have been implicated as potentially etiologic, findings are inconsistent. We reviewed epidemiologic studies that evaluated lifestyle, dietary, occupational and environmental factors; immune function, family history and genetic factors; and the hypothesized precursor, monoclonal gammopathies of undetermined significance (MGUS). Because multiple myeloma is an uncommon disease, etiologic assessments can be difficult because of small numbers of cases in occupational cohort studies, and few subjects reporting exposure to specific agents in case-control studies. Elevated risks have been reported consistently among persons with a positive family history of LHC. A few studies have reported a relationship between obesity and multiple myeloma, and this may be a promising area of research. Factors underlying higher incidence rates of multiple myeloma in African Americans are not understood. The progression from MGUS to multiple myeloma has been reported in several studies; however, there are no established risk factors for MGUS. To improve our understanding of the causes of multiple myeloma, future research efforts should seek the causes of MGUS. More research is also needed on the genetic factors of multiple myeloma, given the strong familial clustering of the disease.
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Ozen M, Karaahmet F, Tezcan ME, Bulut N, Altundag K. Estrogen or testosterone may be effective agents in the management of both multiple myeloma and Alzheimer's disease. Med Hypotheses 2006; 68:231-2. [PMID: 16962721 DOI: 10.1016/j.mehy.2006.07.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2006] [Accepted: 07/03/2006] [Indexed: 11/16/2022]
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Deftereos S, Farmakis D, Papadogianni A, Besleme B, Diamanti-Kandarakis E, Polymeropoylos E, Georgonikou D, Aessopos A. Waldenström's macroglobulinemia developing in a patient with multiple sclerosis: coincidence or association? Mult Scler 2005; 10:598-600. [PMID: 15471380 DOI: 10.1191/1352458504ms1091cr] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Multiple sclerosis (MS) has been reported in association with haematological abnormalities, including monoclonal gammopathies. We present a 54-year-old male patient with a 30-year history of MS who was admitted to our hospital for investigation of anaemia and increased erythrocyte sedimentation rate. A monoclonal IgM protein was detected by serum protein immunofixation, while bone marrow biopsy indicated a 70% infiltration by small lymphoplasmacytoid cells, in the context of a lymphoplasmacytoid immunocytoma, findings compatible to the diagnosis of Waldenström's macroglobulinemia (WM). To our knowledge, this is the first report of WM in a patient with MS. Further to the coexistence of the two diseases observed in the case presented here, there is additional evidence suggesting that the association of MS with plasma cell dyscrasias may not be coincidental.
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Affiliation(s)
- S Deftereos
- First Department of Internal Medicine, University of Athens Medical School, Laiko Hospital, Athens, Greece.
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Abstract
Recently there have been substantial improvements in our understanding of the biology of myeloma. These findings have important implications for aetiological studies aimed at defining the causative factors for myeloma. Myeloma is closely related to monoclonal gammopathy of unknown significance (MGUS), which is now recognized to be very common in the older population. The epidemiology of these conditions is presented and discussed in the context of the genetic factors governing both the risk of developing MGUS or of transformation to myeloma. Biological studies support a role for aberrant class switch recombination early in the natural history of myeloma suggesting that factors in the environment may interact with this mechanism to increase myeloma risk. Case-control and cohort studies have identified several known and suspected environmental exposures. These exposures include high doses of ionizing radiation, and occupational exposure in the farming and petrochemical industries. The data supporting these associations are presented and discussed in the context of the molecular mechanisms underlying these exposures. In particular DNA damage occurring as a consequence could readily interact with the class switch recombination process to increase the risk of chromosomal translocations, oncogene deregulation and malignant transformation. A further hypothesis, which has been extensively investigated, is the role of chronic immune/antigenic stimulation and the risk of myeloma. This concept is difficult to explain in the context of our current immunological concepts. The data supporting the association and how molecular epidemiological studies using genetic variants in cytokine genes are allowing us to revisit this concept are discussed in detail.
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Affiliation(s)
- G J Morgan
- Molecular Haematology, Academic Unit of Haematology and Oncology, University of Leeds, UK.
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Kockler M, Nitardy A, Papassotiropoulos A, Ptok U, Maier W, Heun R. Physical disorders and causes of death in relatives of Alzheimer's disease patients. Int J Geriatr Psychiatry 2002; 17:335-42. [PMID: 11994887 DOI: 10.1002/gps.598] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Genetic risk factors are important in Alzheimer's disease (AD). These risk factors might also predispose for other disorders. This might lead to a familial coaggregation of AD and other disorders, e.g. Down's syndrome or Parkinson's disease. In the present study the risk of physical disorders in relatives of AD patients, of depressed patients and of control subjects were compared. METHODS Family history and, if possible, interview information on physical disorders and causes of death in relatives of 146 patients with AD, 168 patients with major depression (MD) and 136 controls was collected. Statistical comparisons were performed using chi-square tests and, if necessary, logistic regression analysis accounting for age, gender and interview status. RESULTS In contrast to our hypotheses, there was no increased risk of cerebrovascular disease, Down's syndrome, haematological malignancies or Parkinson's disease in relatives of AD patients compared with relatives of patients with MD and of controls. The explorative analysis revealed that congenital malformations, i.e. malformations of the heart or of the extremities, were slightly increased in relatives of AD patients. Relatives of patients with AD or MD were at increased risk of dying as a result of accidents, in most cases falls in advanced age, and relatives of patients with MD were at slightly increased risk of dying from gastroenterologic diseases, in most cases complications of peptic ulcers. CONCLUSION The results do not support a major overlap between the genetic risk of AD and the genetic risk of cerebrovascular disease, Down's syndrome, haematological malignancies or Parkinson's disease. The finding of an increased risk of congenital malformations in relatives of AD patients needs further replication before it can be stated. The increased risk of dementia or depression with cognitive impairment in elderly relatives of patients with AD or MD increases the risk of accidents like falls. The genetic risk of depression in relatives of patients with MD could have a negative influence on the prognosis of peptic ulcera.
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Affiliation(s)
- M Kockler
- Department of Psychiatry, University of Bonn, Bonn, Germany
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Fahn S, Brin MF, Dwork AJ, Weiner WJ, Goetz CG, Rajput AH. Case 1, 1996: rapidly progressive parkinsonism, incontinence, impotency, and levodopa-induced moaning in a patient with multiple myeloma. Mov Disord 1996; 11:298-310. [PMID: 8723148 DOI: 10.1002/mds.870110314] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Affiliation(s)
- S Fahn
- Department of Neurology, Columbia-Presbyterian Medical Center, New York, New York, USA
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14
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Bowden M, Crawford J, Cohen HJ, Noyama O. A comparative study of monoclonal gammopathies and immunoglobulin levels in Japanese and United States elderly. J Am Geriatr Soc 1993; 41:11-4. [PMID: 8418116 DOI: 10.1111/j.1532-5415.1993.tb05940.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
OBJECTIVE To define the prevalence of monoclonal immunoglobulin (Ig) proteins and quantitative serum immunoglobulin levels in elderly Japanese in comparison with elderly Caucasians as possible factors related to the reported lower incidence of multiple myeloma in elderly Japanese than in elderly Caucasians. DESIGN Survey study SETTING Community Center in Yokohama, Japan and Retirement Community in the United States. PARTICIPANTS Convenience sample of community-dwelling elderly subjects (age 63-95) presenting for health screening examinations in each setting. Frozen serum samples were obtained from routine screening from 146 consecutive Japanese subjects and 111 US subjects. INTERVENTION None MEASUREMENTS Presence of monoclonal immunoglobulin protein determined by serum protein electrophoresis and immunofixation and quantitative Ig by laser nephelometry. RESULTS Four (2.7%) of the Japanese cohort had monoclonal gammopathies compared with 11 (10%) of the American cohort. Two of the monoclonal gammopathies were IgG Kappa and two were IgG Lambda. No cases of multiple monoclonal gammopathy were identified in the Japanese group, compared with 25% of the monoclonal gammopathies in the American group. The mean quantitative serum IgG level for the Japanese group was 1,685 +/- 520 mg/dL versus 1,118 +/- 402 mg/dL for the American group; mean quantitative IgA levels were 283 +/- 116 mg/dL versus 226 +/- 116 mg/dL (P < 0.001). Albumin levels were normal in both populations, suggesting that there was not an increase in occult inflammatory disorders in the Japanese population. CONCLUSION The low prevalence of monoclonal gammopathy in elderly Japanese is consistent with the reported lower frequency of multiple myeloma. The reason for the higher quantitative immunoglobulin levels in this population is unclear. Further cross-cultural investigation is warranted to explore the genetic influences on altered immune regulation with aging.
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Affiliation(s)
- M Bowden
- Geriatric Research, Education, and Clinical Center, VA Medical Center, Durham, North Carolina
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Eriksson M, Hållberg B. Familial occurrence of hematologic malignancies and other diseases in multiple myeloma: a case-control study. Cancer Causes Control 1992; 3:63-7. [PMID: 1536915 DOI: 10.1007/bf00051914] [Citation(s) in RCA: 52] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
In a population-based case-control study in Sweden on multiple myeloma, the occurrence of different diseases in relatives, particularly hematologic malignancies and different types of cancer, was investigated. Through a questionnaire mailed to all living subjects, i.e. cases and controls, and to the next-of-kin for deceased subjects, information was obtained on malignant and certain other diseases among relatives. All malignant diseases reported among first-degree relatives were verified, if possible, through parochial authorities and the Swedish Cancer Register. In total, data from 239 cases with myeloma and 220 controls were analyzed. An increased risk was found for persons with first-degree relatives with hematologic malignancies (relative risk [RR] = 2.36, 90 percent confidence interval [CI ) = 0.90-6.15), and also with multiple myeloma specifically (RR = 5.64, CI = 1.16-27.51). An increased risk also was seen if the close relatives had experienced another tumor disease (RR = 1.21, CI = 0.86-1.71). Particularly, occurrence of prostatic cancer (RR = 3.11, CI = 1.25-7.71) or brain tumor (RR = 6.61, CI = 1.42-30.67) in relatives increased the risk for multiple myeloma.
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Affiliation(s)
- M Eriksson
- Department of Oncology, University Hospital, Umeå, Sweden
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