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- Demenais, F, et al.
(författare)
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Association of MC1R Variants and Host Phenotypes With Melanoma Risk in CDKN2A Mutation Carriers: A GenoMEL Study.
- 2010
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Ingår i: Journal of the National Cancer Institute. - : Oxford University Press (OUP). - 1460-2105 .- 0027-8874. ; 102, s. 1568-1583
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Tidskriftsartikel (refereegranskat)abstract
- Background Carrying the cyclin-dependent kinase inhibitor 2A (CDKN2A) germline mutations is associated with a high risk for melanoma. Penetrance of CDKN2A mutations is modified by pigmentation characteristics, nevus phenotypes, and some variants of the melanocortin-1 receptor gene (MC1R), which is known to have a role in the pigmentation process. However, investigation of the associations of both MC1R variants and host phenotypes with melanoma risk has been limited. Methods We included 815 CDKN2A mutation carriers (473 affected, and 342 unaffected, with melanoma) from 186 families from 15 centers in Europe, North America, and Australia who participated in the Melanoma Genetics Consortium. In this family-based study, we assessed the associations of the four most frequent MC1R variants (V60L, V92M, R151C, and R160W) and the number of variants (1, ≥2 variants), alone or jointly with the host phenotypes (hair color, propensity to sunburn, and number of nevi), with melanoma risk in CDKN2A mutation carriers. These associations were estimated and tested using generalized estimating equations. All statistical tests were two-sided. Results Carrying any one of the four most frequent MC1R variants (V60L, V92M, R151C, R160W) in CDKN2A mutation carriers was associated with a statistically significantly increased risk for melanoma across all continents (1.24 × 10(-6) ≤ P ≤ .0007). A consistent pattern of increase in melanoma risk was also associated with increase in number of MC1R variants. The risk of melanoma associated with at least two MC1R variants was 2.6-fold higher than the risk associated with only one variant (odds ratio = 5.83 [95% confidence interval = 3.60 to 9.46] vs 2.25 [95% confidence interval = 1.44 to 3.52]; P(trend) = 1.86 × 10(-8)). The joint analysis of MC1R variants and host phenotypes showed statistically significant associations of melanoma risk, together with MC1R variants (.0001 ≤ P ≤ .04), hair color (.006 ≤ P ≤ .06), and number of nevi (6.9 × 10(-6) ≤ P ≤ .02). Conclusion Results show that MC1R variants, hair color, and number of nevi were jointly associated with melanoma risk in CDKN2A mutation carriers. This joint association may have important consequences for risk assessments in familial settings.
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- Iles, Mark M., et al.
(författare)
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A variant in FTO shows association with melanoma risk not due to BMI
- 2013
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Ingår i: Nature Genetics. - : Springer Science and Business Media LLC. - 1546-1718 .- 1061-4036. ; 45:4, s. 428-432
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Tidskriftsartikel (refereegranskat)abstract
- We report the results of an association study of melanoma that is based on the genome-wide imputation of the genotypes of 1,353 cases and 3,566 controls of European origin conducted by the GenoMEL consortium. This revealed an association between several SNPs in intron 8 of the FTO gene, including rs16953002, which replicated using 12,313 cases and 55,667 controls of European ancestry from Europe, the USA and Australia (combined P = 3.6 x 10(-12), per-allele odds ratio for allele A = 1.16). In addition to identifying a new melanomasusceptibility locus, this is to our knowledge the first study to identify and replicate an association with SNPs in FTO not related to body mass index (BMI). These SNPs are not in intron 1 (the BMI-related region) and exhibit no association with BMI. This suggests FTO's function may be broader than the existing paradigm that FTO variants influence multiple traits only through their associations with BMI and obesity.
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- Testa, A. C., et al.
(författare)
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Intravenous contrast ultrasound examination using contrast-tuned imaging (CnTI (TM)) and the contrast medium SonoVue (R) for discrimination between benign and malignant adnexal masses with solid components
- 2009
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Ingår i: Ultrasound in Obstetrics & Gynecology. - : Wiley. - 1469-0705 .- 0960-7692. ; 34:6, s. 699-710
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Tidskriftsartikel (refereegranskat)abstract
- Objective To determine whether intravenous contrast ultrasound examination is superior to gray-scale or power Doppler ultrasound for discrimination between benign and malignant adnexal masses with complex ultrasound morphology. Methods In an international multicenter study, 134 patients with an ovarian mass with solid components or a multilocular cyst with more than 10 cyst locules, underwent a standardized transvaginal ultrasound examination followed by contrast examination using the contrast-tuned imaging technique and intravenous injection of the contrast medium SonoVue (R). Time intensity curves were constructed, and peak intensity, area under the intensity curve, time to peak, sharpness and half wash-out time were calculated. The sensitivity and specificity with regard to malignancy were calculated and receiver-operating characteristics (ROC) curves were drawn for gray-scale, power Doppler and contrast variables and for pattern recognition (subjective assignment of a certainly benign, probably benign, uncertain or malignant diagnosis, using gray-scale and power Doppler ultrasound findings). The gold standard was the histological diagnosis of the surgically removed tumors. Results After exclusions (surgical removal of the mass > 3 months after the ultrasound examination, technical problems), 72 adnexal masses with solid components were used in our statistical analyses. The values for peak contrast signal intensity and area under the contrast signal intensity curve in malignant tumors were significantly higher than those in borderline tumors and benign tumors, while those for the benign and borderline tumors were similar. The area under the ROC curve of the best contrast variable with regard to diagnosing borderline or invasive malignancy (0.84) was larger than that of the best gray-scale (0.75) and power Doppler ultrasound variable (0.79) but smaller than that of pattern recognition (0.93). Conclusion Findings on ultrasound contrast examination differed between benign and malignant tumors but there was a substantial overlap in contrast findings between benign and borderline tumors. It appears that ultrasound contrast examination is not superior to conventional ultrasound techniques, which also have difficulty in distinguishing between benign and borderline tumors, but can easily differentiate invasive malignancies from other tumors. Copyright (C) 2009 ISUOG. Published by John Wiley & Sons, Ltd.
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- Van Holsbeke, C., et al.
(författare)
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Prospective external validation of the 'ovarian crescent sign' as a single ultrasound parameter to distinguish between benign and malignant adnexal pathology
- 2010
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Ingår i: Ultrasound in Obstetrics & Gynecology. - : Wiley. - 1469-0705 .- 0960-7692. ; 36:1, s. 81-87
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Tidskriftsartikel (refereegranskat)abstract
- Objective To determine the sensitivity and specificity of the 'ovarian crescent sign' (OCS) - a rim of normal ovarian tissue seen adjacent to an ipsilateral adnexal mass as a sonographic feature to discriminate between benign and malignant adnexal masses. Methods The patients included were a subgroup of patients participating in the International Ovarian Tumor Analysis (IOTA) Phase 2 study, which is an international multicenter study. The subgroup comprised 1938 patients, with an adnexal mass, recruited from 19 ultrasound centers in different countries. All patients were scanned using the same standardized ultrasound protocol. Information on more than 40 demographic and ultrasound variables were collected, but the evaluation of the OCS was optional. Only patients from centers that had evaluated the OCS in >= 90% of their cases were included. The gold standard was the histological diagnosis of the adnexal mass. The ability of the OCS to discriminate between borderline or invasively malignant vs. benign adnexal masses, as well as between invasively malignant vs. other (benign and borderline) tumors, was determined and compared with the performance of subjective evaluation of ultrasound findings by the ultrasound examiner. Results The OCS was evaluated in 1377 adnexal masses from 12 centers, 938 (68%) masses being benign, 86 (6%) borderline, 305 (22%) primary invasive and 48 (3%) metastases. The OCS was present in 398 (42%) of 938 benign masses, in 14 (16%) of 86 borderline tumors, in 18 (6%) of 305 primary invasive tumors (one malignant struma ovarii, one uterine clear cell adenocarcinoma and 16 epithelial carcinomas, i.e. four Stage I and 12 Stage II-IV) and in two (4%) of 48 ovarian metastases. Hence, the sensitivity and specificity for absent OCS to identify a malignancy was 92% and 42%, respectively, and the positive and negative likelihood ratios (LR+ and LR-, respectively) were 1.60 and 0.18. Subjective impression performed significantly better than the OCS. Sensitivity and specificity were 90% and 92%, respectively, LR+ was 11.0 and LR- was 0.10. For discrimination between invasive vs. benign or borderline tumors, the sensitivity for absent OCS was 94%, the specificity was 40%, the LR+ was 1.58 and the LR- was 0.14. Conclusion This study confirms previous reports that the presence of the OCS decreases the likelihood of invasive malignancy in adnexal masses. However it is a poor discriminator between benign and malignant adnexal masses. Copyright (C) 2010 ISUOG. Published by John Wiley & Sons, Ltd.
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- Capo, Eric, et al.
(författare)
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Lake sedimentary dna research on past terrestrial and aquatic biodiversity: Overview and recommendations
- 2021
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Ingår i: Quaternary. - : MDPI. - 2571-550X. ; 4:1
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Forskningsöversikt (refereegranskat)abstract
- The use of lake sedimentary DNA to track the long-term changes in both terrestrial and aquatic biota is a rapidly advancing field in paleoecological research. Although largely applied nowadays, knowledge gaps remain in this field and there is therefore still research to be conducted to ensure the reliability of the sedimentary DNA signal. Building on the most recent literature and seven original case studies, we synthesize the state-of-the-art analytical procedures for effective sampling, extraction, amplification, quantification and/or generation of DNA inventories from sedimentary ancient DNA (sedaDNA) via high-throughput sequencing technologies. We provide recommendations based on current knowledge and best practises.
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- De Baat, Esmée C., et al.
(författare)
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Risk Factors for Heart Failure among Pan-European Childhood Cancer Survivors : A PanCareSurFup and ProCardio Cohort and Nested Case-Control Study
- 2023
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Ingår i: Journal of Clinical Oncology. - 0732-183X. ; 41:1, s. 96-106
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE Heart failure (HF) is a potentially life-threatening complication of treatment for childhood cancer. We evaluated the risk and risk factors for HF in a large European study of long-term survivors. Little is known of the effects of low doses of treatment, which is needed to improve current treatment protocols and surveillance guidelines.METHODSThis study includes the PanCareSurFup and ProCardio cohort of ≥ 5-year childhood cancer survivors diagnosed between 1940 and 2009 in seven European countries (N = 42,361). We calculated the cumulative incidence of HF and conducted a nested case-control study to evaluate detailed treatment-related risk factors.RESULTSThe cumulative incidence of HF was 2% (95% CI, 1.7 to 2.2) by age 50 years. The case-control study (n = 1,000) showed that survivors who received a mean heart radiation therapy (RT) dose of 5 to < 15 Gy have an increased risk of HF (odds ratio, 5.5; 95% CI, 2.5 to 12.3), when compared with no heart RT. The risk associated with doses 5 to < 15 Gy increased with exposure of a larger heart volume. In addition, the HF risk increased in a linear fashion with higher mean heart RT doses. Regarding total cumulative anthracycline dose, survivors who received ≥ 100 mg/m2 had a substantially increased risk of HF and survivors treated with a lower dose showed no significantly increased risk of HF. The dose-response relationship appeared quadratic with higher anthracycline doses.CONCLUSIONSurvivors who received a mean heart RT dose of ≥ 5 Gy have an increased risk of HF. The risk associated with RT increases with larger volumes exposed. Survivors treated with < 100 mg/m2 total cumulative anthracycline dose have no significantly increased risk of HF. These new findings might have consequences for new treatment protocols for children with cancer and for cardiomyopathy surveillance guidelines.
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- Escaned, Javier, et al.
(författare)
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Safety of the Deferral of Coronary Revascularization on the Basis of Instantaneous Wave-Free Ratio and Fractional Flow Reserve Measurements in Stable Coronary Artery Disease and Acute Coronary Syndromes
- 2018
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Ingår i: JACC. - : Elsevier. - 1936-8798 .- 1876-7605. ; 11:15, s. 1437-1449
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVES The aim of this study was to investigate the clinical outcomes of patients deferred from coronary revascularization on the basis of instantaneous wave-free ratio (iFR) or fractional flow reserve (FFR) measurements in stable angina pectoris (SAP) and acute coronary syndromes (ACS). BACKGROUND Assessment of coronary stenosis severity with pressure guidewires is recommended to determine the need for myocardial revascularization. METHODS The safety of deferral of coronary revascularization in the pooled per-protocol population (n = 4,486) of the DEFINE-FLAIR (Functional Lesion Assessment of Intermediate Stenosis to Guide Revascularisation) and iFR-SWEDEHEART (Instantaneous Wave-Free Ratio Versus Fractional Flow Reserve in Patients With Stable Angina Pectoris or Acute Coronary Syndrome) randomized clinical trials was investigated. Patients were stratified according to revascularization decision making on the basis of iFR or FFR and to clinical presentation (SAP or ACS). The primary endpoint was major adverse cardiac events (MACE), defined as the composite of all-cause death, nonfatal myocardial infarction, or unplanned revascularization at 1 year. RESULTS Coronary revascularization was deferred in 2,130 patients. Deferral was performed in 1,117 patients (50%) in the iFR group and 1,013 patients (45%) in the FFR group (p < 0.01). At 1 year, the MACE rate in the deferred population was similar between the iFR and FFR groups (4.12% vs. 4.05%; fully adjusted hazard ratio: 1.13; 95% confidence interval: 0.72 to 1.79; p = 0.60). A clinical presentation with ACS was associated with a higher MACE rate compared with SAP in deferred patients (5.91% vs. 3.64% in ACS and SAP, respectively; fully adjusted hazard ratio: 0.61 in favor of SAP; 95% confidence interval: 0.38 to 0.99; p = 0.04). CONCLUSIONS Overall, deferral of revascularization is equally safe with both iFR and FFR, with a low MACE rate of about 4%. Lesions were more frequently deferred when iFR was used to assess physiological significance. In deferred patients presenting with ACS, the event rate was significantly increased compared with SAP at 1 year. (C) 2018 The Authors. Published by Elsevier on behalf of the American College of Cardiology Foundation.
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- Petraco, Ricardo, et al.
(författare)
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Real-time use of instantaneous wave-free ratio: Results of the ADVISE in-practice: An international, multicenter evaluation of instantaneous wave-free ratio in clinical practice
- 2014
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Ingår i: American Heart Journal. - : Elsevier BV. - 1097-6744 .- 0002-8703. ; 168:5, s. 739-748
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Tidskriftsartikel (refereegranskat)abstract
- Objectives To evaluate the first experience of real-time instantaneous wave-free ratio (iFR) measurement by clinicians. Background The iFR is a new vasodilator-free index of coronary stenosis severity, calculated as a trans-lesion pressure ratio during a specific period of baseline diastole, when distal resistance is lowest and stable. Because all previous studies have calculated iFR offline, the feasibility of real-time iFR measurement has never been assessed. Methods Three hundred ninety-two stenoses with angiographically intermediate stenoses were included in this multicenter international analysis. Instantaneous wave free ratio and fractional flow reserve (FFR) were performed in real time on commercially available consoles. The classification agreement of coronary stenoses between iFR and FFR was calculated. Results Instantaneous wave-free ratio and FFR maintain a close level of diagnostic agreement when both are measured by clinicians in real time (for a clinical 0.80 FFR cutoff: area under the receiver operating characteristic curve [ROCAUC] 0.87, classification match 80%, and optimal iFR cutoff 0.90; for a ischemic 0.75 FFR cutoff: iFR ROCAUC 0.90, classification match 88%, and optimal iFR cutoff 0.85; if the FFR 0.75-0.80 gray zone is accounted for: ROCAUC 0.93, classification match 92%). When iFR and FFR are evaluated together in a hybrid decision-making strategy, 61% of the population is spared from vasodilator while maintaining a 94% overall agreement with FFR lesion classification. Conclusion When measured in real time, iFR maintains the close relationship to FFR reported in offline studies. These findings confirm the feasibility and reliability of real-time iFR calculation by clinicians.
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- Cerrato, Enrico, et al.
(författare)
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Revascularization Deferral of Nonculprit Stenoses on the Basis of Fractional Flow Reserve : 1-Year Outcomes of 8,579 Patients
- 2020
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Ingår i: JACC: Cardiovascular Interventions. - : Elsevier BV. - 1936-8798. ; 13:16, s. 1894-1903
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Tidskriftsartikel (refereegranskat)abstract
- Background: Intracoronary physiology is increasingly used in nonculprit stenoses of patients with acute coronary syndromes (ACS). However, evidence regarding the safety of fractional flow reserve-based deferral in patients with ACS, compared with patients with stable angina pectoris (SAP), is scarce. Objectives: The aim of this study was to evaluate the safety of revascularization deferral on the basis of fractional flow reserve interrogation of nonculprit lesions in patients with ACS. Methods: A pooled analysis was performed of individual patient data included in 5 large international published studies on physiology-guided revascularization. The primary endpoint was major adverse cardiac events (MACE) (a composite of death, nonfatal myocardial infarction, or unplanned revascularization) at 1-year follow-up. Clinical outcomes of patients with ACS and SAP were compared in both the deferred and the revascularized groups. Results: A total of 8,579 patients were included in the analysis, 6,461 with SAP and 2,118 with ACS and nonculprit stenoses. Using fractional flow reserve, revascularization was deferred in 5,129 patients (59.8%) and performed in 3,450 patients (40.2%). In the deferred ACS group, a higher MACE rate was observed compared with the deferred SAP group (4.46% vs. 2.83%; adjusted hazard ratio [HR]: 1.72; 95% confidence interval [CI]: 1.17 to 2.53; p < 0.01). In particular, early unplanned revascularization (3.34% and 2.04% in ACS and SAP; adjusted HR: 1.81; 95% CI: 1.09 to 3.00; p = 0.02) contributed to this excess in MACE but the difference between the ACS and SAP groups did not reach statistical significance. On the contrary, no differences in outcomes linked to clinical presentation were found in treated patients (MACE rate 6.51% vs. 6.20%; adjusted HR: 1.21; 95% CI: 0.88 to 1.26; p = 0.24). Conclusions: Patients with ACS in whom revascularization of nonculprit lesions was deferred on the basis of fractional flow reserve have more MACE at 1 year compared with patients with SAP with deferred revascularization. Unplanned revascularization mainly contributed to this excess of MACE.
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- Komajda, M, et al.
(författare)
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The chronic ischaemic cardiovascular disease ESC Pilot Registry: Results of the six-month follow-up
- 2018
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Ingår i: European journal of preventive cardiology. - : Oxford University Press (OUP). - 2047-4881 .- 2047-4873. ; 25:4, s. 377-387
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Tidskriftsartikel (refereegranskat)abstract
- Chronic ischaemic cardiovascular disease (CICD) remains a leading cause of morbidity and mortality worldwide. The CICD Pilot Registry enrolled 2420 patients across 10 European Society of Cardiology countries prospectively to describe characteristics, management strategies and clinical outcomes in this setting. We report here the six-month outcomes. Methods and results From the overall population, 2203 patients were analysed at six months. Fifty-eight patients (2.6%) died after inclusion; 522 patients (23.7%) experienced all-cause hospitalisation or death. The rate of prescription of angiotensin-converting enzyme inhibitors, beta-blockers and aspirin was mildly decreased at six months (all P < 0.02). Patients who experienced all-cause hospitalisation or death were older, more often had a history of non-ST-segment elevation myocardial infarction, of chronic kidney disease, peripheral revascularisation and/or chronic obstructive pulmonary disease than those without events. Independent predictors of all-cause mortality/hospitalisation were age (hazard ratio (HR) 1.17, 95% confidence interval (CI) 1.07–1.27) per 10 years, and a history of previous peripheral revascularisation (HR 1.45, 95% CI 1.03–2.03), chronic kidney disease (HR 1.31, 95% CI 1.0–1.68) or chronic obstructive pulmonary disease (HR 1.42, 95% CI 1.06–1.91, all P < 0.05). We observed a higher rate of events in eastern, western and northern countries compared to southern countries and in cohort 1. Conclusion In this contemporary European registry of CICD patients, the rate of severe clinical outcomes at six months was high and was influenced by age, heart rate and comorbidities. The medical management of this condition remains suboptimal, emphasising the need for larger registries with long-term follow-up. Ad-hoc programmes aimed at implementing guidelines adherence and follow-up procedures are necessary, in order to improve quality of care and patient outcomes.
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- Pauksens, Karlis, et al.
(författare)
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Randomized Controlled Study of the Safety and Immunogenicity of Pneumococcal Vaccine Formulations Containing PhtD and Detoxified Pneumolysin with Alum or Adjuvant System AS02(V) in Elderly Adults
- 2014
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Ingår i: Clinical and Vaccine Immunology. - 1556-6811 .- 1556-679X. ; 21:5, s. 651-660
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Tidskriftsartikel (refereegranskat)abstract
- Six vaccine formulations containing AS02(V) or alum (aluminum phosphate [AlPO4]) adjuvant with pneumococcal proteins, pneumococcal histidine triad D (PhtD), and/or detoxified pneumolysin (dPly), either as a polysaccharide carrier in an 8-valent pneumococcal conjugate vaccine (8PCV) or as free (unconjugated) proteins, were evaluated in adults -65 to 85 years of age. In this phase I observer-blind study, 167 healthy subjects were randomized to receive two doses (days 0 and 60) of 10 or 30 mu g PhtD-dPly plus AS02(V) or alum, 8PCV plus AS02(V) or alum, or one dose (day 0) of 23-valent polysaccharide pneumococcal vaccine (23PPV) as a control (placebo on day 60). The safety, reactogenicity, and antibody-specific responses to these vaccines were evaluated. No vaccine-related serious adverse events were reported. The incidences of solicited local and specific general (fatigue and myalgia) symptoms tended to be higher in the AS02(V) groups than in other groups. Anti-PhtD and anti-Ply antibody responses were observed in all groups except the control group. One month post-dose 2, the anti-PhtD and anti-Ply antibody geometric mean concentrations tended to be higher with AS02(V) than with alum, higher with a dose of 30 mu g than with 10 mu g for PhtD-dPly and higher with 30-mu g PhtD-dPly formulations than with conjugated PhtD and dPly (8PCV) formulations. Functional antibody responses, measured by an opsonophagocytic activity assay, tended to be higher with 8PCV than with 23PPV. In conclusion, vaccine formulations containing free or conjugated PhtD and dPly had acceptable reactogenicity and safety profiles in elderly adults. Immune responses were enhanced with an AS02(V)-adjuvanted formulation containing free 30-mu g PhtD-dPly compared to those with alum adjuvant and conjugated proteins.
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- Sunguc, Ceren, et al.
(författare)
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Risk of subsequent primary oral cancer in a cohort of 69,460 5-year survivors of childhood and adolescent cancer in Europe : the PanCareSurFup study
- 2023
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Ingår i: British Journal of Cancer. - : Springer Science and Business Media LLC. - 0007-0920 .- 1532-1827. ; 128:1, s. 80-90
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Tidskriftsartikel (refereegranskat)abstract
- Background: Survivors of childhood cancer are at risk of subsequent primary malignant neoplasms (SPNs), but the risk for rarer types of SPNs, such as oral cancer, is uncertain. Previous studies included few oral SPNs, hence large-scale cohorts are required to identify groups at risks. Methods: The PanCareSurFup cohort includes 69,460 5-year survivors of childhood cancer across Europe. Risks of oral SPNs were defined by standardised incidence ratios (SIRs), absolute excess risks and cumulative incidence. Results: One hundred and forty-five oral SPNs (64 salivary gland, 38 tongue, 20 pharynx, 2 lip, and 21 other) were ascertained among 143 survivors. Survivors were at 5-fold risk of an oral SPN (95% CI: 4.4–5.6). Survivors of leukaemia were at greatest risk (SIR = 19.2; 95% CI: 14.6–25.2) followed by bone sarcoma (SIR = 6.4, 95% CI: 3.7–11.0), Hodgkin lymphoma (SIR = 6.2, 95% CI: 3.9–9.9) and soft-tissue sarcoma (SIR = 5.0, 95% CI: 3.0–8.5). Survivors treated with radiotherapy were at 33-fold risk of salivary gland SPNs (95% CI: 25.3–44.5), particularly Hodgkin lymphoma (SIR = 66.2, 95% CI: 43.6–100.5) and leukaemia (SIR = 50.5, 95% CI: 36.1–70.7) survivors. Survivors treated with chemotherapy had a substantially increased risk of a tongue SPN (SIR = 15.9, 95% CI: 10.6–23.7). Conclusions: Previous radiotherapy increases the risk of salivary gland SPNs considerably, while chemotherapy increases the risk of tongue SPNs substantially. Awareness of these risks among both health-care professionals and survivors could play a crucial role in detecting oral SPNs early.
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