Paola Muti

McMaster University, Hamilton, Ontario, Canada

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Publications (147)693.9 Total impact

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    ABSTRACT: Background: Oral squamous cell carcinoma (OSCC) is the sixth most common cancer worldwide with a high rate of recurrence. MicroRNAs (miRNAs) are gene regulators playing an important role in oral carcinogenesis. We aimed to identify and functionally characterize miRNAs that predict recurrence in OSCC.Methods: We collected 92 OSCC with their normal tissue counterparts and we performed miRNAs expression profiling on 74 OSCC and 38 normal tissues. The association between the expression of microRNAs and clinical outcome was evaluated in 69 followed-up patients.Results: Four of the miRNAs deregulated between OSCC and normal tissues. areprognostic for recurrence either when considered individually or as a group. Depletion of the expression of prognostic miRNAs inhibits the proliferation of OSCC cells Conclusions: MicroRNAs are differentially expressed in OSCC versus normal samples. The expression of 4 prognostic microRNAs signature is able to predict recurrence risk independently from other clinical factors in OSCC. This article is protected by copyright. All rights reserved.
    Head & Neck 12/2014; · 2.83 Impact Factor
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    ABSTRACT: Background: MicroRNAs (miRNAs) have been implicated in the regulation of key metabolic, inflammatory and malignant pathways, hence they might be considered both predictors and players of cancer development. Methods: Using a case-control study design nested in the ORDET prospective cohort study, we addressed the possibility that specific microRNAs can serve as early predictors of breast cancer incidence in postmenopausal women. We compared leucocyte miRNA profiles of 133 incident postmenopausal breast cancer cases and profiles of 133 women who remained healthy over a follow-up period of twenty years. Results: The analysis identified 20 differentially expressed miRNAs, 15 of them were down-regulated. Among the 20 miRNAs, miRNA-145-5p and miRNA-145-3p, each derived from another arm of the respective pre-miRNA, were consistently and significantly down-regulated in all databases we surveyed. For example, analysis of more than 1,500 patients (the UK Metabric cohort) indicated that high abundance of miRNA 145-3p and miRNA-145-5p was associated with longer, and for miRNA-145-3p also statistically significant, survival. The experimental data attributed different roles to the identified microRNAs: while the 5p isoform was associated with invasion and metastasis the other isoform appears related to cell proliferation. Conclusions: These observations and the prospective design of our study lend support to the hypothesis that down-regulation of specific microRNAs constitutes an early event in cancer development. This finding might be utilized for breast cancer prevention. Impact: The identification of the miRNAs as long-term biomarkers of breast cancer may have an impact of breast cancer prevention and early detection.
    Cancer Epidemiology Biomarkers & Prevention 07/2014; · 4.32 Impact Factor
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    ABSTRACT: Increasing evidence witnesses that cancer metabolism alterations represent a critical hallmark for many types of human tumors. There is a strong need to understand and dissect the molecular mechanisms underlying cancer metabolism to envisage specific biomarkers and underpin critical molecular components that might represent novel therapeutic targets. One challenge, that is the focus of this review, is the reprogramming of the altered metabolism of a cancer cell toward that of un-transformed cell. The anti-hyperglicemic agent, metformin has proven to be effective in reprogramming the metabolism of cancer cells even from those subpopulations endowed with cancer stem like features and very high chemoresistenace to conventional anticancer treatments. A functional interplay involving selective modulation of microRNAs (miRNAs) takes place along the anticancer metabolic effects exerted by metformin. The implications of this interplay will be also discussed in this review.
    Annals of translational medicine. 06/2014; 2(6):58.
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    ABSTRACT: There is growing evidence that 1α,25-dihydroxyvitamin D3 (1α,25(OH)2D3) plays a role in breast cancer prevention and survival. It elicits a variety of antitumor activities like controlling cellular differentiation, proliferation and angiogenesis. Most of its biological effects are exerted via its nuclear receptor which acts as a transcriptional regulator. Here, we carried out a genome-wide investigation of the primary transcriptional targets of 1α,25(OH)2D3 in breast epithelial cancer cells using RNA-Seq technology. We identified early transcriptional targets of 1α,25(OH)2D3 involved in adhesion, growth regulation, angiogenesis, actin cytoskeleton regulation, hexose transport, inflammation and immunomodulation, apoptosis, endocytosis and signaling. Furthermore, we found several transcription factors to be regulated by 1α,25(OH)2D3 that subsequently amplify and diversify the transcriptional output driven by 1α,25(OH)2D3 leading finally to a growth arrest of the cells. Moreover, we could show that 1α,25(OH)2D3 elevates the trimethylation of histone H3 lysine 4 at several target gene promoters. Our present transcriptomic analysis of differential expression after 1α,25(OH)2D3 treatment provides a resource of primary 1α,25(OH)2D3 targets that might drive the antiproliferative action in breast cancer epithelial cells.
    The Journal of steroid biochemistry and molecular biology 04/2014; · 3.98 Impact Factor
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    ABSTRACT: Metabolic remodeling is a hallmark of cancer progression and may affect tumor chemoresistance. Here we investigated by 1H-NMR/PCA analysis the metabolic profile of chemoresistant breast cancer cell subpopulations (ALDHbright cells) and their response to metformin, a promising anticancer metabolic modulator. The purified ALDHbright cells exhibited a different metabolic profile as compared to their chemosensitive ALDHlow counterparts. Metformin treatment strongly affected the metabolism of the ALDHbright cells thereby affecting, among the others, the glutathione metabolism, whose upregulation is a feature of progenitor-like, chemoresistant cell subpopulations. Globally, metformin treatment reduced the differences between ALDHbright and ALDHlow cells, making the former more similar to the latter. Metformin broadly modulated microRNAs in the ALDHbright cells, with a large fraction of them predicted to target the same metabolic pathways experimentally identified by 1H-NMR. Additionally, metformin modulated the levels of c-MYC and IRS-2, and this correlated with changes of the microRNA-33a levels. In summary, we observed, both by 1H-NMR and microRNA expression studies, that metformin treatment reduced the differences between the chemoresistant ALDHbright cells and the chemosensitive ALDHlow cells. This works adds on the potential therapeutic relevance of metformin and shows the potential for metabolic reprogramming to modulate cancer chemoresistance.
    Oncotarget 03/2014; · 6.63 Impact Factor
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    ABSTRACT: Tumor initiation and progression are the outcomes of a stepwise accumulation of genetic alterations. Among these, gene amplification and aberrant expression of oncogenic proteins, as well as deletion or inactivation of tumor suppressor genes, represent hallmark steps. Mounting evidence collected over the last few years has identified different populations of non-coding RNAs as major players in tumor suppression in almost all cancer types. Elucidating the diverse molecular mechanisms underlying the roles of non-coding RNAs in tumor progression might provide illuminating insights, potentially able to assist improved diagnosis, better staging and effective treatments of human cancers. Here we focus on several groups of tumor suppressor microRNAs, whose downregulation exerts a profound oncologic impact and might be harnessed for the benefit of cancer patients.
    FEBS letters 03/2014; · 3.54 Impact Factor
  • Paola Muti
    Nature Reviews Cancer 01/2014; · 29.54 Impact Factor
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    ABSTRACT: Cancer metabolism is the focus of intense research, which witnesses its key role in human tumors. Diabetic patients treated with metformin exhibit a reduced incidence of cancer and cancer-related mortality. This highlights the possibility that the tackling of metabolic alterations might also hold promising value for treating cancer patients. Here, we review the emerging role of metformin as a paradigmatic example of an old drug used worldwide to treat patients with type II diabetes which to date is gaining strong in vitro and in vivo anticancer activities to be included in clinical trials. Metformin is also becoming the focus of intense basic and clinical research on chemoprevention, thus suggesting that metabolic alteration is an early lesion along cancer transformation. Metabolic reprogramming might be a very efficient prevention strategy with a profound impact on public health worldwide.
    Metabolites. 12/2013; 3(4):1051-75.
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    ABSTRACT: MicroRNAs (miRNAs) are characterized as small RNA molecules that modulate gene transcription in a posttranslational manner. Functionally, miRNAs play important roles in a diverse number of biological processes, including cell development, differentiation, proliferation, and apoptosis. Consequently, changes in the expression pattern of miRNAs have been associated with multiple human pathologies, including cancer. Based on these alterations, distinct miRNAs can be utilized as markers for cancer risk evaluation or used in tumour detection. Recent evidence has indicated that lifestyle factors, such as nutrition, physical activity, and glycemic control provide health benefits through regulation of miRNA expression. In this review, we provide a concise overview of miRNA regulation, biosynthesis, and their expression patterns in normal and malignant tissue. We then summarize the emerging knowledge of how lifestyle factors, including nutrients, exercise, and hypoglycemic agents modify miRNAs and are involved in cancer prevention. Finally, we conclude by providing recommendation for future investigations into novel agents that can modulate miRNAs and act as chemotherapeutic agents against cancer.
    MicroRNA. 09/2013; 2(2):82-90.
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    ABSTRACT: Objective Chronic lung disease is exacerbated by comorbid psychiatric issues and treatment of depression may improve disease symptoms. We sought to add to the literature as to whether depression is associated with pulmonary function in healthy adults.Methods In 2551 healthy adults from New York State, we studied the association of depression via the Center for Epidemiologic Studies Depression scale (CES-D) scale score and forced expiratory volume in 1 second (FEV1) and forced vital capacity (FVC) using general linear models and a cross-sectional design.ResultsWe identified statistically significant inverse trends in FEV1, FVC, FEV1%, and FVC% by CES-D category, especially in ever-smokers and men. When adjusted for covariates, the difference in FEV1 and FEV1% for smokers with more than 18.5 lifetime pack-years from CES-D scores 0 to 3 to 16 or more (depressed) is approximately 0.25 l and 5.0% (adjusted p values for trend are <.001 and .019, respectively). In men, we also observed statistically significant inverse trends in pulmonary function with increasing CES-D.Conclusions We identified an inverse association of depressive symptoms and pulmonary function in healthy adults, especially in men and individuals with a heavy smoking history. Further studies of these associations are essential for the development and tailoring of interventions for the prevention and treatment of chronic lung disease.
    Psychosomatic Medicine 08/2013; · 4.09 Impact Factor
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    ABSTRACT: INTRODUCTION: Previous studies showed higher testosterone levels are associated with higher risk of breast cancer in premenopausal women, but literature is scant and inconsistent. METHODS: In a prospective nested case-control study of 104 premenopausal women with incident breast cancer and 225 matched controls, all characterized by regular menstrual cycles throughout their lifetime, we measured the concentration of estradiol, total and free testosterone (FT), progesterone, sex hormone-binding globulin (SHBG), follicle-stimulating hormone (FSH) and luteinizing hormone (LH) in blood samples collected on the 20-24th day of their cycle. RESULTS: In logistic regression models, the multivariate odds ratios (OR) of invasive breast cancer for women in the highest tertile of circulating free testosterone compared with the lowest was 2.43 (95% confidence interval [95% CI], 1.15-5.10; Ptrend = 0.03), while for total testosterone the association had the same direction but was not statistically significant (OR, 1.27; 95% CI= 0.62-2.61; Ptrend = 0.51]. Endogenous Progesterone was not statistically associated with breast cancer (OR, 1.16, 95% CI, 0.60-2.27; Ptrend = 0.75), nor were the other considered hormones. CONCLUSIONS: Consistent with previous prospective studies in premenopausal women and our own earlier investigation, we observed that higher levels of free testosterone are positively associated with breast cancer risk in women with regular menstrual cycles throughout their lifetime. There was no evidence of risk associated with the other endogenous sex steroids.
    Breast cancer research: BCR 06/2013; 15(3):R46. · 5.88 Impact Factor
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    ABSTRACT: High circulating glucose has been associated with increased risk of breast cancer (BC). There may also be a link between serum glucose and prognosis in women treated for BC. We assessed the effect of peridiagnostic fasting blood glucose and body mass index (BMI) on long-term BC prognosis. We retrospectively investigated 1,261 women diagnosed and treated for stage I-III BC at the National Cancer Institute, Milan, in 1996, 1999 and 2000. Data on blood tests and follow-up were obtained by linking electronic archives, with follow-up to end of 2009. Multivariate Cox modelling estimated hazard ratios (HR) with 95 % confidence intervals (CI) for distant metastasis, recurrence and death (all causes) in relation to categorized peridiagnostic fasting blood glucose and BMI. Mediation analysis investigated whether blood glucose mediated the BMI-breast cancer prognosis association. The risks of distant metastasis were significantly higher for all other quintiles compared to the lowest glucose quintile (reference <87 mg/dL) (respective HRs: 1.99 95 % CI 1.23-3.24, 1.85 95 % CI 1.14-3.0, 1.73 95 % CI 1.07-2.8, and 1.91 95 % CI 1.15-3.17). The risk of recurrence was significantly higher for all other glucose quintiles compared to the first. The risk of death was significantly higher than reference in the second, fourth and fifth quintiles. Women with BMI ≥ 25 kg/m(2) had significantly greater risks of recurrence and distant metastasis than those with BMI < 25 kg/m(2), irrespective of blood glucose. The increased risks remained invariant over a median follow-up of 9.5 years. Mediation analysis indicated that glucose and BMI had independent effects on BC prognosis. Peridiagnostic high fasting glucose and obesity predict worsened short- and long-term outcomes in BC patients. Maintaining healthy blood glucose levels and normal weight may improve prognosis.
    Breast Cancer Research and Treatment 04/2013; 138(3). · 4.47 Impact Factor
  • Paola Muti, Punam Rana
    Polskie archiwum medycyny wewnȩtrznej 03/2013; 123(3):83-84. · 2.05 Impact Factor
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    ABSTRACT: PURPOSE: Indirect evidence from experimental and epidemiological studies suggests that prolactin may be involved in ovarian cancer development. However, the relationship between circulating prolactin levels and risk of ovarian cancer is unknown. METHODS: We conducted a nested case-control study of 230 cases and 432 individually matched controls within three prospective cohorts to evaluate whether pre-diagnostic circulating prolactin is associated with subsequent risk of ovarian cancer. We also assessed whether lifestyle and reproductive factors are associated with circulating prolactin among controls. RESULTS: Prolactin levels were significantly lower among post- versus pre-menopausal women, parous versus nulliparous women, and past versus never users of oral contraceptives in our cross-sectional analysis of controls. In our nested case-control study, we observed a non-significant positive association between circulating prolactin and ovarian cancer risk (OR(Q4vsQ1) 1.56, 95 % CI 0.94, 2.63, p trend 0.15). Our findings were similar in multivariate-adjusted models and in the subgroup of women who donated blood ≥5 years prior to diagnosis. We observed a significant positive association between prolactin and risk for the subgroup of women with BMI ≥25 kg/m(2) (OR(Q4vsQ1) 3.10, 95 % CI 1.39, 6.90), but not for women with BMI <25 kg/m(2) (OR(Q4vsQ1) 0.81, 95 % CI 0.40, 1.64). CONCLUSIONS: Our findings suggest that prolactin may be associated with increased risk of ovarian cancer, particularly in overweight/obese women. Factors associated with reduced risk of ovarian cancer, such as parity and use of oral contraceptives, were associated with lower prolactin levels, which suggests that modulation of prolactin may be a mechanism underlying their association with risk.
    Cancer Causes and Control 02/2013; · 3.20 Impact Factor
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    ABSTRACT: Melatonin has been known to be a chemopreventive agent, since its levels inversely correlate with the risk of developing cancer. We have recently shown that melatonin induces p38-dependent phosphorylation of both p53 and histone H2AX. This is associated with a p53-mediated increase in repair of both endogenous and chemotherapy-induced DNA damage. In addition, the inhibition of p38 activities impairs melatonin's capability to induce a p53-dependent DNA damage response and thus its ability to maintain genome integrity. Since melatonin-induced p53 phosphorylation requires an intact p38 phosphorylation cascade and p38 can be activated by G-proteins, we supposed that melatonin's activities could be mediated by its G-proteins coupled membrane receptors, MT1 and MT2. Here, we show that the activation of the p53-dependent DNA damage response by melatonin is indeed mediated by MT1 and MT2. As a result, the absence of either receptor impairs melatonin's ability to reduce both cell proliferation and clonogenic potential of cancer cells. In addition, this causes an impairment of the p53-dependent DNA damage response. By providing molecular insight, our findings might have translational impact, suggesting the involvement of melatonin receptors in tumorigenesis.
    Carcinogenesis 01/2013; · 5.27 Impact Factor
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    ABSTRACT: Deregulated proliferation is a hallmark of cancer cells. Here, we show that microRNA-10b* is a master regulator of breast cancer cell proliferation and is downregulated in tumoural samples versus matched peritumoural counterparts. Two canonical CpG islands (5 kb) upstream from the precursor sequence are hypermethylated in the analysed breast cancer tissues. Ectopic delivery of synthetic microRNA-10b* in breast cancer cell lines or into xenograft mouse breast tumours inhibits cell proliferation and impairs tumour growth in vivo, respectively. We identified and validated in vitro and in vivo three novel target mRNAs of miR-10b* (BUB1, PLK1 and CCNA2), which play a remarkable role in cell cycle regulation and whose high expression in breast cancer patients is associated with reduced disease-free survival, relapse-free survival and metastasis-free survival when compared to patients with low expression. This also suggests that restoration of microRNA-10b* expression might have therapeutic promise.
    EMBO Molecular Medicine 11/2012; 4(11):1214-29. · 7.80 Impact Factor
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    ABSTRACT: Background: Circulating estrogens are associated with increased breast cancer risk, yet the role of estrogen metabolites in breast carcinogenesis remains unclear. This combined analysis of 5 published studies evaluates urinary 2-hydroxyestrone (2-OHE1), 16α-hydroxyestrone (16α-OHE1), and their ratio (2:16α-OHE1) in relation to breast cancer risk. 
Methods: Primary data on 726 premenopausal women (183 invasive breast cancer cases and 543 controls) and 1,108 postmenopausal women (385 invasive breast cancer cases and 723 controls) were analyzed. Urinary estrogen metabolites were measured using enzyme linked immunosorbent assays. Study-specific and combined multivariable adjusted odds ratios (ORs) and 95% confidence intervals (CIs) were estimated based on tertiles of estrogen metabolites. Multinomial logistic regression models were fit according to hormone receptor status.
Results: Higher premenopausal 2:16α-OHE1 was suggestive of reduced breast cancer risk overall (study-adjusted ORIIIvsI=0.80; 95% CI: 0.49-1.32) and for estrogen receptor negative (ER-) subtype (ORIIIvsI=0.33; 95% CI: 0.13-0.84). Among postmenopausal women, 2:16α-OHE1 was unrelated to breast cancer risk (study-adjusted ORIIIvsI=0.93; 95% CI: 0.65-1.33); however, the association between 2-OHE1 and risk varied by body mass index (p-interaction=0.003). 
Conclusions: Premenopausal urinary 2:16α-OHE1 may play a role in breast carcinogenesis; however, larger studies are needed. Our findings do not support reduced breast cancer risk with higher postmenopausal 2:16α-OHE1 overall, although obesity may modify associations with 2-OHE1.
    The International journal of biological markers 08/2012; 28(1). · 1.36 Impact Factor
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    ABSTRACT: Prospective studies have consistently found that postmenopausal breast cancer risk increases with circulating estrogens; however, findings from studies of estrogens and mammographic density (MD), an intermediate marker of breast cancer risk, have been inconsistent. We investigated the cross-sectional associations of urinary estrogens, and their 2-, 4-, and 16-hydroxylated metabolites with MD. Postmenopausal women without breast cancer (n = 194), ages 48 to 82 years, and reporting no current menopausal hormone therapy use were enrolled at a clinic in Western NY in 2005. Urinary estrogens and estrogen metabolites were measured using mass spectrometry. Percent MD and dense area (cm(2)) were measured using computer-assisted analyses of digitized films. Linear regression models were used to estimate associations of log-transformed estrogen measures with MD while adjusting for age, body mass index (BMI), parity, and past hormone therapy use. Urinary concentrations of most individual estrogens and metabolites were not associated with MD; however, across the interdecile range of the ratio of parent estrogens (estrone and estradiol) to their metabolites, MD increased by 6.8 percentage points (P = 0.02) and dense area increased by 10.3 cm(2) (P = 0.03). Across the interdecile ranges of the ratios of 2-, 4-, and 16-hydroxylation pathways to the parent estrogens, MD declined by 6.2 (P = 0.03), 6.4 (P = 0.04), and 5.7 (P = 0.05) percentage points, respectively. All associations remained apparent in models without adjustment for BMI. In this study of postmenopausal women, less extensive hydroxylation of parent estrogens was associated with higher MD. Impact: Hydroxylation of estrogens may modulate postmenopausal breast cancer risk through a pathway involving MD. Cancer Epidemiol Biomarkers Prev; 21(9); 1582-91. ©2012 AACR.
    Cancer Epidemiology Biomarkers & Prevention 06/2012; 21(9):1582-91. · 4.56 Impact Factor
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    ABSTRACT: Diabetic patients treated with metformin have a reduced incidence of cancer and cancer-related mortality. Here we show that metformin affects engraftment and growth of breast cancer tumours in mice. This correlates with the induction of metabolic changes compatible with clear anticancer effects. We demonstrate that microRNA modulation underlies the anticancer metabolic actions of metformin. In fact, metformin induces DICER expression and its effects are severely impaired in DICER knocked down cells. Conversely, ectopic expression of DICER recapitulates the effects of metformin in vivo and in vitro. The microRNAs upregulated by metformin belong mainly to energy metabolism pathways. Among the messenger RNAs downregulated by metformin, we found c-MYC, IRS-2 and HIF1alpha. Downregulation of c-MYC requires AMP-activated protein kinase-signalling and mir33a upregulation by metformin. Ectopic expression of c-MYC attenuates the anticancer metabolic effects of metformin. We suggest that DICER modulation, mir33a upregulation and c-MYC targeting have an important role in the anticancer metabolic effects of metformin.
    Nature Communications 05/2012; 3:865. · 10.74 Impact Factor
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    ABSTRACT: Many academic medical centres have introduced strategies to assess the productivity of faculty as part of compensation schemes. We conducted a systematic review of the effects of such strategies on faculty productivity. We searched the MEDLINE, Healthstar, Embase and PsycInfo databases from their date of inception up to October 2011. We included studies that assessed academic productivity in clinical, research, teaching and administrative activities, as well as compensation, promotion processes and satisfaction. Of 531 full-text articles assessed for eligibility, we included 9 articles reporting on eight studies. The introduction of strategies for assessing academic productivity as part of compensation schemes resulted in increases in clinical productivity (in six of six studies) in terms of clinical revenue, the work component of relative-value units (these units are nonmonetary standard units of measure used to indicate the value of services provided), patient satisfaction and other departmentally used standards. Increases in research productivity were noted (in five of six studies) in terms of funding and publications. There was no change in teaching productivity (in two of five studies) in terms of educational output. Such strategies also resulted in increases in compensation at both individual and group levels (in three studies), with two studies reporting a change in distribution of compensation in favour of junior faculty. None of the studies assessed effects on administrative productivity or promotion processes. The overall quality of evidence was low. Strategies introduced to assess productivity as part of a compensation scheme appeared to improve productivity in research activities and possibly improved clinical productivity, but they had no effect in the area of teaching. Compensation increased at both group and individual levels, particularly among junior faculty. Higher quality evidence about the benefits and harms of such assessment strategies is needed.
    Canadian Medical Association Journal 05/2012; 184(11):E602-12. · 5.81 Impact Factor

Publication Stats

4k Citations
693.90 Total Impact Points


  • 2012–2014
    • McMaster University
      • • Department of Oncology
      • • Juravinski Cancer Centre
      Hamilton, Ontario, Canada
    • Umeå University
      • Department of Medical Biosciences
      Umeå, Vaesterbotten, Sweden
  • 2005–2013
    • Istituto Regina Elena - Istituti Fisioterapici Ospitalieri
      Roma, Latium, Italy
  • 2000–2011
    • University at Buffalo, The State University of New York
      • • Department of Medicine
      • • Department of Biotechnical and Clinical Laboratory Sciences
      • • Department of Social and Preventive Medicine
      Buffalo, NY, United States
  • 1996–2011
    • Fondazione IRCCS Istituto Nazionale dei Tumori di Milano
      Milano, Lombardy, Italy
  • 2010
    • The University of Warwick
      Coventry, England, United Kingdom
  • 2008–2010
    • Harvard Medical School
      • Department of Medicine
      Boston, MA, United States
  • 2006–2007
    • CRO Centro di Riferimento Oncologico di Aviano
      Aviano, Friuli Venezia Giulia, Italy
    • Informa Healthcare
      New York City, New York, United States
  • 2004–2007
    • Roswell Park Cancer Institute
      • Department of Epidemiology
      Buffalo, New York, United States
    • New York University
      • Department of Obstetrics and Gynecology
      New York City, NY, United States
  • 2003–2005
    • State University of New York
      New York City, New York, United States
    • Rutgers, The State University of New Jersey
      • Department of Nutritional Sciences
      New Brunswick, NJ, United States
  • 2002–2004
    • International Agency for Research on Cancer
      Lyons, Rhône-Alpes, France
    • University of Vermont
      Burlington, Vermont, United States
  • 2000–2004
    • Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori
      Meldola, Emilia-Romagna, Italy