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- Landgren, O, et al.
(författare)
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Prevalence of myeloma precursor state monoclonal gammopathy of undetermined significance in 12372 individuals 10-49 years old: a population-based study from the National Health and Nutrition Examination Survey
- 2017
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Ingår i: Blood cancer journal. - : Springer Science and Business Media LLC. - 2044-5385. ; 7:10, s. e618-
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Tidskriftsartikel (refereegranskat)abstract
- We studied the prevalence of monoclonal gammopathy of undetermined significance (MGUS) in younger individuals, age 10–49 years, using samples from the National Health and Nutritional Examination Survey (NHANES) III. NHANES prevalence rates were standardized to the 2000 US total population. Among 12 372 individuals (4073 blacks, 4146 Mexican-Americans, 3595 whites, and 558 others), MGUS was identified in 63 persons (0.34%, 95% CI 0.23–0.50). The prevalence of MGUS was significantly higher in blacks (0.88%, 95% CI 0.62–1.26) compared with whites (0.22%, 95% CI 0.11–0.45), P=0.001. The prevalence of MGUS in Mexican-Americans was at an intermediate level (0.41%, 95% CI 0.23–0.73). The disparity in prevalence of MGUS between blacks and whites was most striking in the 40–49 age-group; 3.26% (95% CI 2.04–5.18) versus 0.53% (95% CI 0.20–1.37), P=0.0013. There was a trend to earlier age of onset of MGUS in blacks compared with whites. MGUS was seen in only two persons in the 10–19 age-group (both Mexican-American), and in three persons in the 20–29-year age-group (all of whom were black). In persons less than 50 years of age, MGUS is significantly more prevalent, with up to 10 years earlier age of onset, in blacks compared with whites.
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- Kazandjian, D, et al.
(författare)
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Molecular underpinnings of clinical disparity patterns in African American vs. Caucasian American multiple myeloma patients
- 2019
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Ingår i: Blood cancer journal. - : Springer Science and Business Media LLC. - 2044-5385. ; 9:2, s. 15-
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Tidskriftsartikel (refereegranskat)abstract
- Caucasian Americans (CA) compared with African Americans (AA) have a twofold increased incidence of multiple myeloma (MM) and have an earlier age of diagnosis. However, there is sparse information regarding underlying biological differences across racial/ethnic groups. We characterized genetic alterations using a targeted next-generation sequencing assay called myTYPE, developed at MSKCC, allowing capture of somatic mutations, IgH translocations, gains/losses, and hyperdiploidy. Samples were obtained from the NIH Plasma Cell Dyscrasia Racial Disparity Cohort. In total, 68 patient samples were successfully sequenced and manually curated based on well-established databases. Of the 68 patient samples (47 CA, 21 AA), 84% had at least one type of genomic alteration. Importantly, the IgH translocation, t(11;14), was observed more frequently in the AA group (0 vs. 29%, p = 0.001). Known oncogenic somatic non-synonymous mutations were found in 18 genes and indels in 2 genes. KRAS mutations were the most common mutation found in 16% of patients followed by NRAS and BRAF mutations. TP53 somatic mutations appeared to be more common in CA but lacked significance. This proof-of-principle study indicates the presence of varying underlying tumor biology between racial groups and supports the need of future prospective trials to capture these molecular characteristics.
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- Mailankody, S, et al.
(författare)
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Baseline mutational patterns and sustained MRD negativity in patients with high-risk smoldering myeloma
- 2017
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Ingår i: Blood advances. - : American Society of Hematology. - 2473-9529 .- 2473-9537. ; 1:22, s. 1911-1918
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Tidskriftsartikel (refereegranskat)abstract
- Patients with high-risk smoldering myeloma treated with 3-drug combinations have deep and durable responses with 63% MRD negativity. Baseline mutations in high-risk smoldering myeloma and newly diagnosed myeloma are different, which suggests treatment-responsive biology.
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