1
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Nguyen S, Carlson H, Yoder A, Bamlet WR, Oberg AL, Petersen GM, Carmella SG, Hecht SS, Jansen RJ. Polycyclic Aromatic Hydrocarbons and Pancreatic Cancer: An Analysis of the Blood Biomarker, r-1, t-2,3, c-4-Tetrahydroxy-1,2,3,4-tetrahydrophenanthrene and Selected Metabolism Gene SNPs. Nutrients 2024; 16:688. [PMID: 38474816 PMCID: PMC10935191 DOI: 10.3390/nu16050688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/05/2024] [Accepted: 02/25/2024] [Indexed: 03/14/2024] Open
Abstract
Exposure to polycyclic aromatic hydrocarbons (PAHs), byproducts of incomplete combustion, and their effects on the development of cancer are still being evaluated. Recent studies have analyzed the relationship between PAHs and tobacco or dietary intake in the form of processed foods and smoked/well-done meats. This study aims to assess the association of a blood biomarker and metabolite of PAHs, r-1,t-2,3,c-4-tetrahydroxy-1,2,3,4-tetrahydrophenanthrene (PheT), dietary intake, selected metabolism SNPs, and pancreatic cancer. Demographics, food-frequency data, SNPs, treatment history, and levels of PheT in plasma were determined from 400 participants (202 cases and 198 controls) and evaluated based on pancreatic adenocarcinoma diagnosis. Demographic and dietary variables were selected based on previously published literature indicating association with pancreatic cancer. A multiple regression model combined the significant demographic and food items with SNPs. Final multivariate logistic regression significant factors (p-value < 0.05) associated with pancreatic cancer included: Type 2 Diabetes [OR = 6.26 (95% CI = 2.83, 14.46)], PheT [1.03 (1.02, 1.05)], very well-done red meat [0.90 (0.83, 0.96)], fruit/vegetable servings [1.35 (1.06, 1.73)], recessive (rs12203582) [4.11 (1.77, 9.91)], recessive (rs56679) [0.2 (0.06, 0.85)], overdominant (rs3784605) [3.14 (1.69, 6.01)], and overdominant (rs721430) [0.39 (0.19, 0.76)]. Of note, by design, the level of smoking did not differ between our cases and controls. This study does not provide strong evidence that PheT is a biomarker of pancreatic cancer susceptibility independent of dietary intake and select metabolism SNPs among a nonsmoking population.
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Affiliation(s)
- Sierra Nguyen
- Department of Public Health, North Dakota State University, Fargo, ND 58105, USA;
| | - Heather Carlson
- Fairbanks School of Public Health, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USA
| | - Andrea Yoder
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA (S.S.H.)
| | - William R. Bamlet
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN 55905, USA
| | - Ann L. Oberg
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN 55905, USA
| | - Gloria M. Petersen
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN 55905, USA
| | - Steven G. Carmella
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA (S.S.H.)
| | - Stephen S. Hecht
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA (S.S.H.)
| | - Rick J. Jansen
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA (S.S.H.)
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Bajracharya D, Jansen RJ. Observations of COVID-19 vaccine coverage and vaccine hesitancy on COVID-19 outbreak: An American ecological study. Vaccine 2024; 42:246-254. [PMID: 38103963 PMCID: PMC10842854 DOI: 10.1016/j.vaccine.2023.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/10/2023] [Accepted: 12/01/2023] [Indexed: 12/19/2023]
Abstract
In this ecological study, we aim to establish the role vaccines play in bringing the pandemic under control, as well as the impact of pathogen variants, vaccine hesitancy, and medical resource availability during the process by utilizing publicly available data. The study spans a three-year data collection period for daily hospital admissions due to COVID-19 and the daily reported cases of COVID-19 across all 50 states in the USA. In doing so, we aim to demonstrate the difference in severity of the SARS-CoV-2 pathogen among vaccinated and unvaccinated populations in the USA. The study assesses the correlation of COVID-19 vaccines (e.g., Pfizer, Moderna, and Janssen) and disease outcomes (transmissibility, severity, and deaths) caused by different strains of SARS-CoV-2 and establishes a negative correlation between COVID-19 vaccine and disease outcomes. By considering potential confounders in vaccine hesitancy, medical resource availability and vaccine dosage, we demonstrate the aforementioned to be insubstantial in predicting disease outcomes while the latter displays a contrasting significance in terms of disease outcomes. Between all the major variants of concern, the Delta and Omicron variants in particular have been associated with higher virulence and transmissibility factors respectively. Hence, the CDC continues to encourage the US population to get vaccinated since vaccines are one of the most effective ways to protect the community from potential outbreaks and prevent severe disease manifestations.
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Affiliation(s)
- Deewan Bajracharya
- Genomics, Phenomics, and Bioinformatics Program, North Dakota State University, Fargo, ND, USA.
| | - Rick J Jansen
- Genomics, Phenomics, and Bioinformatics Program, North Dakota State University, Fargo, ND, USA; Biostatistics Core, Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
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Drake TN, Euker B, Tang-Tan AM, Lee CD, Breeding EL, Winston JS, Samli B, Jansen RJ, Danso M, Guye ML, Hoefer RA, Tang AH. Abstract 1961: Stratifying high-risk patients, quantifying therapy efficacy, and detecting treatment/racial disparity in triple-negative breast cancer (TNBC) at Sentara-EVMS-VOA. Cancer Res 2023. [DOI: 10.1158/1538-7445.am2023-1961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
Abstract
Introduction: Metastatic breast cancer (MBC) is the 2nd leading cause of cancer-related deaths in American women. While improvements in local and systemic therapies have significantly improved survival, 43,250 MBC patients are expected to succumb to their disease in the United States in 2022 alone. Triple-negative breast cancer (TNBC) represents 15% of all breast cancer and is defined by the lack of expression of estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2). TNBC is the most aggressive subtype of breast cancer, known for its early relapse rate, chemo-resistance, and reduced survival. TNBC is also nearly twice as common in African American (AA) than in White women. In this study, we aim to ascertain the cancer disparity in a large cohort of Black/AA TNBC patients compared to their White counterparts in Hampton Roads, Virginia, as well as to the national SEER database.
Methods: A retrospective chart review and survival study of 554 TNBC patients who received standard of care (SOC) treatment at Sentara-EVMS-VOA was performed. Kaplan-Meier survival curves were generated. Statistical analyses were conducted to determine if any clinicopathologic parameters, chemotherapy regimens, insurance, or socioeconomic status could be used to predict patient survival and risk stratify Black/AA and White TNBC patients in this Sentara cohort.
Results: According to the national SEER TNBC database, 5-year survival rates for Black/AA and Whites are reported as 71.65% and 78.98%, respectively, compared to 70.33% and 75.53% within our local TNBC cohort. The Kaplan-Meier curve, which stratified our TNBC patients by race, predicted significant reduction in breast cancer-specific survival among Black/AA patients as compared to their White counterparts at all TNBC stages, especially in advanced and metastatic settings. This disparity is notably pronounced at stages II and III, as the Black/AA survival curves trend below that of the White TNBC patients for years following surgical intervention. A higher percentage of Black/AA patients were uninsured or under Medicaid coverage and did not receive standard AC-T regimens, particularly for TNBC patients with stage II disease, likely contributing to a reduced 5-year survival in the Black/AA TNBC cohort. We detected racial disparity in prescription of monotherapy or combination chemotherapy that might have also linked to reduced survival in the Black/AA patients from the Sentara catchment areas.
Conclusion: Low socioeconomic status is a major impediment for access to health care. Multipronged combination chemotherapy regimens are critical in treating high-risk and high-grade TNBC patients. Therefore, it is imperative that Medicaid coverage includes AC-T regimens to improve TNBC survival, especially in our Black/AA patients in Hampton Roads, Virginia.
Citation Format: Taylor N. Drake, Brandon Euker, Angela M. Tang-Tan, Caroline Dasom Lee, Emily L. Breeding, Janet S. Winston, Billur Samli, Rick J. Jansen, Michael Danso, Mary L. Guye, Richard A. Hoefer, Amy H. Tang. Stratifying high-risk patients, quantifying therapy efficacy, and detecting treatment/racial disparity in triple-negative breast cancer (TNBC) at Sentara-EVMS-VOA [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2023; Part 1 (Regular and Invited Abstracts); 2023 Apr 14-19; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2023;83(7_Suppl):Abstract nr 1961.
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Affiliation(s)
| | | | - Angela M. Tang-Tan
- 2Keck School of Medicine, University of Southern California, Los Angeles, CA
| | | | | | | | | | | | | | - Mary L. Guye
- 8Sentara Surgery Specialists – Surgical Oncology, Sentara CarePlex Hospital, Newport News, Virginia & Sentara Cancer Network, Sentara Healthcare, Norfolk, VA
| | | | - Amy H. Tang
- 1Eastern Virginia Medical School, Norfolk, VA
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Chandra Deb L, Hove H, Miller TK, Pinks K, Njau G, Hagan JJ, Jansen RJ. Epidemiology of Hepatitis C virus infection among incarcerated populations in North Dakota. PLoS One 2022; 17:e0266047. [PMID: 35349606 PMCID: PMC8963564 DOI: 10.1371/journal.pone.0266047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 03/12/2022] [Indexed: 12/09/2022] Open
Abstract
This retrospective cohort study was conducted to determine the prevalence of HCV infections among individuals incarcerated in a state prison system and identify potential contributing factors to HCV infection. North Dakota Department of Corrections and Rehabilitation (NDDOCR) data from 2009 to 2018 was used and period prevalence was calculated for this 10-year time period. The period prevalence of HCV infection was (15.13% (95% CI 14.39–15.90) with a marginally significant (p-value: 0.0542) increasing linear trend in annual prevalence over this period. Multivariate logistic regression analysis was used to identify risk factors associated with HCV infection. The main significant independent risk factors for HCV infection in this incarcerated population were age >40 years [OR: 1.78 (1.37–2.32)]; sex [OR: 1.21 (1.03–1.43)]; race/ethnicity [OR: 1.97 (1.69–2.29)]; history of intravenous drug use (IVDU) [OR: 7.36 (6.41–8.44)]; history of needle or syringe sharing [OR: 7.57 (6.62–8.67)]; and alcohol use [OR: 0.87 (0.77–0.99)]. Study limitations include uncollected information on sexual history, frequency or duration of injection drug use and blood transfusion history of the incarcerated population. Considering the high prevalence of HCV infection and its associated risk factors, it is important to implement prevention programs such as syringe/needle exchanges and counsel with imprisoned IVD users.
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Affiliation(s)
- Liton Chandra Deb
- Department of Public Health, North Dakota State University, Fargo, ND, United States of America
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States of America
| | - Hannah Hove
- Department of Public Health, North Dakota State University, Fargo, ND, United States of America
- University of North Dakota School of Medicine & Health Sciences, Grand Forks, ND, United States of America
| | - Tracy K. Miller
- North Dakota Department of Health, Bismarck, ND, United States of America
| | - Kodi Pinks
- North Dakota Department of Health, Bismarck, ND, United States of America
| | - Grace Njau
- North Dakota Department of Health, Bismarck, ND, United States of America
| | - John J. Hagan
- North Dakota Department of Corrections and Rehabilitation, Bismarck, ND, United States of America
| | - Rick J. Jansen
- Department of Public Health, North Dakota State University, Fargo, ND, United States of America
- Genomics, Phenomics, and Bioinformatics Program, North Dakota State University, Fargo, ND, United States of America
- Center for Immunization Research and Education (CIRE), North Dakota State University, Fargo, ND, United States of America
- Center for Diagnostic and Therapeutic Strategies in Pancreatic Cancer, North Dakota State University, Fargo, ND, United States of America
- * E-mail:
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5
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Jansen RJ, Orr M, Bamlet WR, Petersen GM. A Pilot Study of Blood-Based Methylation Markers Associated With Pancreatic Cancer. Front Genet 2022; 13:849839. [PMID: 35360846 PMCID: PMC8963849 DOI: 10.3389/fgene.2022.849839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 02/17/2022] [Indexed: 12/14/2022] Open
Abstract
Over the past several decades in the United States, incidence of pancreatic cancer (PCa) has increased, with the 5-year survival rate remaining extremely low at 10.8%. Typically, PCa is diagnosed at an advanced stage, with the consequence that there is more tumor heterogeneity and increased probability that more cells are resistant to treatments. Risk factors for PCa can serve as a way to select a high-risk population and develop biomarkers to improve early detection and treatment. We focus on blood-based methylation as an approach to identify a marker set that can be obtained in a minimally invasive way (through peripheral blood) and could be applied to a high-risk subpopulation [those with recent onset type 2 diabetes (DM)]. Blood samples were collected from 30 patients, 15 had been diagnosed with PCa and 15 had been diagnosed with recent onset DM. HumanMethylationEPIC Beadchip (Illumina, CA, United States) was used to quantify methylation of approximately 850,000 methylation sites across the genome and to analyze methylation markers associated with PCa or DM or both. Exploratory analysis conducted to propose importance of top CpG (5'-C-phosphate-G-3') methylation site associated genes and visualized using boxplots. A methylation-based age predictor was also investigated for ability to distinguish disease groups from controls. No methylation markers were observed to be significantly associated with PCa or new onset diabetes compared with control the respective control groups. In our exploratory analysis, one methylation marker, CpG04969764, found in the Laminin Subunit Alpha 5 (LAMA5) gene region was observed in both PCa and DM Top 100 methylation marker sets. Modification of LAMA5 methylation or LAMA5 gene function may be a way to distinguish those recent DM cases with and without PCa, however, additional studies with larger sample sizes and different study types (e.g., cohort) will be needed to test this hypothesis.
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Affiliation(s)
- Rick J. Jansen
- Department of Public Health, North Dakota State University, Fargo, ND, United States,Genomics, Phenomics, and Bioinformatics Program, North Dakota State University, Fargo, ND, United States,Center for Immunization Research and Education (CIRE), North Dakota State University, Fargo, ND, United States,Center for Diagnostic and Therapeutic Strategies in Pancreatic Cancer, North Dakota State University, Fargo, ND, United States,*Correspondence: Rick J. Jansen,
| | - Megan Orr
- Department of Statistics, North Dakota State University, Fargo, ND, United States
| | - William R. Bamlet
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, United States
| | - Gloria M. Petersen
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, United States
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6
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Strand MA, Shyllon O, Hohman A, Jansen RJ, Sidhu S, McDonough S. Evaluating the Association of Face Covering Mandates on COVID-19 Severity by State. J Prim Care Community Health 2022; 13:21501319221086720. [PMID: 35343833 PMCID: PMC8966126 DOI: 10.1177/21501319221086720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Objective: During the COVID-19 pandemic in the United States, mitigation measures were implemented on a state-by-state basis. Governors were responsible for establishing interventions appropriate for their states and the timing of implementation. This paper evaluated the association between the presence and timing of a mask mandate and the severity of the COVID-19 epidemic by state. Methods: The states were divided into 3 categories based on when the governors of each state implemented a mask mandate: Early (mask mandate implemented between March 2020 and June 2020), Late (July 2020-December 2020), and Never (no mask mandate implemented). The rates of hospitalizations and mortality (per 100 000) were assessed at the different time points during the pandemic across these categories from March to December 2020. Results: The mortality rates across all 3 groups were observed to be highest in the beginning and toward the end of the pandemic in 2020 with the peak observed in the Early group between April and May 2020. Also, the rates of hospitalization increased steadily across all groups. The Early mask group was comprised of 86.7% and 13.3% states with Democratic and Republican governors respectively, and no states in the Never category had Democratic governors. Conclusion: These results support the benefit of implementing a mask mandate to minimize the impact of the COVID-19 pandemic and the role of political affiliation of governors on that impact.
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Affiliation(s)
| | | | - Adam Hohman
- North Dakota State University, Fargo, ND, USA
| | | | | | - Stephen McDonough
- University of North Dakota School of Medicine, Pediatric Medicine Bismarck, ND, USA
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7
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Jansen RJ. Commentary on whole-grain intake and pancreatic cancer risk-the danish, diet, cancer and health cohort by Schacht et al.. Hepatobiliary Surg Nutr 2021; 10:702-704. [PMID: 34760979 PMCID: PMC8527421 DOI: 10.21037/hbsn-21-286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 08/19/2021] [Indexed: 11/06/2022]
Affiliation(s)
- Rick J Jansen
- Department of Public Health, Genomics, Phenomics, and Bioinformatics Program, Center for Immunization Research and Education (CIRE), Center for Diagnostic and Therapeutic Strategies in Pancreatic Cancer, North Dakota State University, Fargo, ND, USA
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8
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Dailey KM, Jacobson RI, Johnson PR, Woolery TJ, Kim J, Jansen RJ, Mallik S, Brooks AE. Methods and Techniques to Facilitate the Development of Clostridium novyi NT as an Effective, Therapeutic Oncolytic Bacteria. Front Microbiol 2021; 12:624618. [PMID: 33854487 PMCID: PMC8039391 DOI: 10.3389/fmicb.2021.624618] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 02/28/2021] [Indexed: 12/17/2022] Open
Abstract
The tumor microenvironment is characterized by anomalous vascularization, hypoxia, and acidity at the core of solid tumors that culminates in concentrated necrosis and immune system dysregulation among other effects. While this environment presents several challenges for the development of oncotherapeutics that deliver their activity via the enhanced permeability and retention (EPR) effect of the leaky blood vessels around a tumor, oncolytic bacteria, or a class of bacteria with a noted capacity to lyse solid tumors, are attracted to the very environment found at the center of solid tumors that confounds other therapeutics. It is this capacity that allows for a potent, active penetration from the tumor margins into the core, and subsequent colonization to facilitate lysis and immune reactivation. Clostridium novyi in particular has recently shown great promise in preclinical and clinical trials when administered directly to the tumor. These studies indicate that C. novyi is uniquely poised to effectively accomplish the long sought after "holy grail" of oncotherapeutics: selective tumor localization via intravenous delivery. This study reports the development of efficient methods that facilitate experimental work and therapeutic translation of C. novyi including the ability to work with this obligate micro-anaerobe on the benchtop. Additionally, this study seeks to utilize this newfound experimental flexibility to address several gaps in the current knowledge regarding the efficacy of CRIPSR/Cas9-mediated gene insertion in this species to further develop this oncolytic bacteria and the genetic customization of bacteria in general.
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Affiliation(s)
- Kaitlin M Dailey
- Cell and Molecular Biology Program, North Dakota State University, Fargo, ND, United States.,Department of Pharmaceutical Sciences, North Dakota State University, Fargo, ND, United States
| | - Reed I Jacobson
- Department of Biological Sciences, North Dakota State University, Fargo, ND, United States
| | - Paige R Johnson
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, ND, United States
| | - Taylor J Woolery
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, ND, United States
| | - Jiha Kim
- Department of Biological Sciences, North Dakota State University, Fargo, ND, United States
| | - Rick J Jansen
- Department of Public Health, North Dakota State University, Fargo, ND, United States.,Genomics and Bioinformatics Program, North Dakota State University, Fargo, ND, United States
| | - Sanku Mallik
- Cell and Molecular Biology Program, North Dakota State University, Fargo, ND, United States.,Department of Pharmaceutical Sciences, North Dakota State University, Fargo, ND, United States
| | - Amanda E Brooks
- Cell and Molecular Biology Program, North Dakota State University, Fargo, ND, United States.,Department of Pharmaceutical Sciences, North Dakota State University, Fargo, ND, United States.,Office of Research and Scholarly Activity, Rocky Vista University, Ivins, UT, United States
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9
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Huseth-Zosel AL, Secor-Turner M, Wen Q, Liu X, Jansen RJ. Associations between oil development and sexually transmitted infections: Public health nurse perspectives. Public Health Nurs 2020; 38:4-12. [PMID: 33216399 DOI: 10.1111/phn.12836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/24/2020] [Accepted: 10/26/2020] [Indexed: 12/01/2022]
Abstract
BACKGROUND Oil development (OD) has been associated with increased sexually transmitted infection (STI) rates, with limited focus on the North Dakota (ND) oil boom. Public health (PH) nurse experiences can provide context related to health challenges during OD-related population booms. OBJECTIVE To compare reported STI rates in ND oil-producing (OP) and non-oil-producing (NOP) counties before, during, and after the oil boom and describe PH nurse experiences during this time. DESIGN We conducted secondary data analysis of oil production data and reported rates for chlamydia and gonorrhea, and conducted interviews with ND PH nurses. SAMPLE PH nurses within ND counties geographically located in or near OD in the state. MEASUREMENTS ND county-level OD data trends were compared to similarly timed reported rates of chlamydia and gonorrhea in OP and NOP counties. PH nurse interviews were conducted addressing their STI-related experiences working in PH during the oil boom. RESULTS Significant findings include a correlation between OD and gonorrhea rates. PH nurses described a limited PH infrastructure to meet the health needs of a transient, increasing population. CONCLUSIONS Expanding the role of PH nurses in ND to implement STI screening and treatment would improve access to STI testing allowing for comprehensive reporting of STIs.
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Affiliation(s)
| | | | - Qian Wen
- Department of Statistics, North Dakota State University, Fargo, ND, USA
| | - Xiyuan Liu
- Department of Statistics and Data Science, University of Central Florida, Orlando, FL, USA
| | - Rick J Jansen
- Department of Public Health, North Dakota State University, Fargo, ND, USA
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10
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Gupta GK, Collier AL, Lee D, Hoefer RA, Zheleva V, Siewertsz van Reesema LL, Tang-Tan AM, Guye ML, Chang DZ, Winston JS, Samli B, Jansen RJ, Petricoin EF, Goetz MP, Bear HD, Tang AH. Perspectives on Triple-Negative Breast Cancer: Current Treatment Strategies, Unmet Needs, and Potential Targets for Future Therapies. Cancers (Basel) 2020; 12:E2392. [PMID: 32846967 PMCID: PMC7565566 DOI: 10.3390/cancers12092392] [Citation(s) in RCA: 144] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/10/2020] [Accepted: 08/20/2020] [Indexed: 12/12/2022] Open
Abstract
Triple-negative breast cancer (TNBC), characterized by the absence or low expression of estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor (HER2), is the most aggressive subtype of breast cancer. TNBC accounts for about 15% of breast cancer cases in the U.S., and is known for high relapse rates and poor overall survival (OS). Chemo-resistant TNBC is a genetically diverse, highly heterogeneous, and rapidly evolving disease that challenges our ability to individualize treatment for incomplete responders and relapsed patients. Currently, the frontline standard chemotherapy, composed of anthracyclines, alkylating agents, and taxanes, is commonly used to treat high-risk and locally advanced TNBC. Several FDA-approved drugs that target programmed cell death protein-1 (Keytruda) and programmed death ligand-1 (Tecentriq), poly ADP-ribose polymerase (PARP), and/or antibody drug conjugates (Trodelvy) have shown promise in improving clinical outcomes for a subset of TNBC. These inhibitors that target key genetic mutations and specific molecular signaling pathways that drive malignant tumor growth have been used as single agents and/or in combination with standard chemotherapy regimens. Here, we review the current TNBC treatment options, unmet clinical needs, and actionable drug targets, including epidermal growth factor (EGFR), vascular endothelial growth factor (VEGF), androgen receptor (AR), estrogen receptor beta (ERβ), phosphoinositide-3 kinase (PI3K), mammalian target of rapamycin (mTOR), and protein kinase B (PKB or AKT) activation in TNBC. Supported by strong evidence in developmental, evolutionary, and cancer biology, we propose that the K-RAS/SIAH pathway activation is a major tumor driver, and SIAH is a new drug target, a therapy-responsive prognostic biomarker, and a major tumor vulnerability in TNBC. Since persistent K-RAS/SIAH/EGFR pathway activation endows TNBC tumor cells with chemo-resistance, aggressive dissemination, and early relapse, we hope to design an anti-SIAH-centered anti-K-RAS/EGFR targeted therapy as a novel therapeutic strategy to control and eradicate incurable TNBC in the future.
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Affiliation(s)
- Gagan K. Gupta
- Leroy T. Canoles Jr. Cancer Research Center, Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA 23501, USA;
| | - Amber L. Collier
- DeWitt Daughtry Family Department of Surgery, Surgical Oncology, University of Miami/Jackson Memorial Hospital, University of Miami Miller School of Medicine, Miami, FL 33131, USA;
| | - Dasom Lee
- Department of Medicine, Internal Medicine, H. Lee Moffitt Cancer Center and Research Institute, University of South Florida, Tampa, FL 33620, USA;
| | - Richard A. Hoefer
- Dorothy G. Hoefer Foundation, Sentara CarePlex Hospital, Newport News, VA 23666, USA;
- Sentara Cancer Network, Sentara Healthcare, Norfolk, VA 23507, USA;
| | - Vasilena Zheleva
- Surgical Oncology, Cancer Treatment Centers of America—Comprehensive Care and Research Center Phoenix, 14200 W Celebrate Life Way, Goodyear, AZ 85338, USA;
| | | | - Angela M. Tang-Tan
- Department of Molecular and Cell Biology, UC Berkeley, Berkeley, CA 94720, USA;
| | - Mary L. Guye
- Sentara Cancer Network, Sentara Healthcare, Norfolk, VA 23507, USA;
- Sentara Surgery Specialists, Sentara CarePlex Hospital, Newport News, VA 23666, USA
| | - David Z. Chang
- Virginia Oncology Associates, 1051 Loftis Boulevard, Suite 100, Newport News, VA 23606, USA;
| | - Janet S. Winston
- Breast Pathology Services, Pathology Sciences Medical Group, Department of Pathology, Sentara Norfolk General Hospital (SNGH), Norfolk, VA 23507, USA; (J.S.W.); (B.S.)
| | - Billur Samli
- Breast Pathology Services, Pathology Sciences Medical Group, Department of Pathology, Sentara Norfolk General Hospital (SNGH), Norfolk, VA 23507, USA; (J.S.W.); (B.S.)
| | - Rick J. Jansen
- Department of Public Health, North Dakota State University, Fargo, ND 58102, USA;
| | - Emanuel F. Petricoin
- Center for Applied Proteomics and Molecular Medicine, School of Systems Biology, George Mason University, Manassas, VA 20110, USA;
| | - Matthew P. Goetz
- Departments of Oncology and Pharmacology, Mayo Clinic Breast Cancer Specialized Program of Research Excellence (SPORE), Women’s Cancer Program, Mayo Clinic Cancer Center, Mayo Clinic, Rochester, MN 55905, USA;
| | - Harry D. Bear
- Departments of Surgery and Microbiology & Immunology, Division of Surgical Oncology, Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 23298, USA;
| | - Amy H. Tang
- Leroy T. Canoles Jr. Cancer Research Center, Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA 23501, USA;
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11
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Gupta G, Lee CD, Guye ML, Van Sciver RE, Lee MP, Lafever AC, Pang A, Tang-Tan AM, Winston JS, Samli B, Jansen RJ, Hoefer RA, Tang AH. Unmet Clinical Need: Developing Prognostic Biomarkers and Precision Medicine to Forecast Early Tumor Relapse, Detect Chemo-Resistance and Improve Overall Survival in High-Risk Breast Cancer. ACTA ACUST UNITED AC 2020; 4:48-57. [PMID: 32542231 PMCID: PMC7295150 DOI: 10.36959/739/525] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Chemo-resistant breast cancer is a major barrier to curative treatment for a significant number of women with breast cancer. Neoadjuvant chemotherapy (NACT) is standard first- line treatment for most women diagnosed with high-risk TNBC, HER2+, and locally advanced ER+ breast cancer. Current clinical prognostic tools evaluate four clinicopathological factors: Tumor size, LN status, pathological stage, and tumor molecular subtype. However, many similarly treated patients with identical residual cancer burden (RCB) following NACT experience distinctly different tumor relapse rates, clinical outcomes and survival. This problem is particularly apparent for incomplete responders with a high-risk RCB classification following NACT. Therefore, there is a pressing need to identify new prognostic and predictive biomarkers, and develop novel curative therapies to augment current standard of care (SOC) treatment regimens to save more lives. Here, we will discuss these unmet needs and clinical challenges that stand in the way of precision medicine and personalized cancer therapy.
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Affiliation(s)
- Gagan Gupta
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, USA
| | - Caroline Dasom Lee
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, USA
| | - Mary L Guye
- Sentara Surgery Specialists, Sentara CarePlex Hospital, USA.,Sentara Cancer Network, Sentara Hospital Systems, USA
| | - Robert E Van Sciver
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, USA
| | - Michael P Lee
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, USA
| | - Alex C Lafever
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, USA
| | - Anthony Pang
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, USA
| | - Angela M Tang-Tan
- Department of Molecular and Cell Biology, University of California, USA
| | - Janet S Winston
- Department of Pathology, Pathology Sciences Medical Group, Sentara Norfolk General Hospital, USA
| | - Billur Samli
- Department of Pathology, Pathology Sciences Medical Group, Sentara Norfolk General Hospital, USA
| | - Rick J Jansen
- Department of Public Health, North Dakota State University, USA
| | - Richard A Hoefer
- Sentara Cancer Network, Sentara Hospital Systems, USA.,Dorothy G. Hoefer Foundation, Sentara CarePlex Hospital, USA
| | - Amy H Tang
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, USA
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12
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Schmidt R, Carson PJ, Jansen RJ. Resurgence of Syphilis in the United States: An Assessment of Contributing Factors. Infect Dis (Lond) 2019; 12:1178633719883282. [PMID: 31666795 PMCID: PMC6798162 DOI: 10.1177/1178633719883282] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 09/25/2019] [Indexed: 12/22/2022] Open
Abstract
In the last decade, there has been a marked resurgence of syphilis in the United States despite the availability of effective treatments and previously reliable prevention strategies. The majority of cases are among the population of men who have sex with men (MSM); however, there has also been a recent increase among premenopausal women, coinciding with a concerning rise of congenital cases. The resurgence of syphilis can be largely attributed to changing social and behavioral factors, especially among young MSM. The biological association of syphilis with human immunodeficiency virus (HIV) transmission and acquisition is particularly alarming because of the increased individual and healthcare burden. In addition, some individual actions and public health efforts that are meant to reduce the risk of acquiring HIV may actually lead to risk compensation that facilitates the transmission of syphilis. Untreated syphilis is associated with detrimental health outcomes; therefore, both effective prevention strategies and treatment of this systemic disease have important short-term and long-term public health implications. This article offers a review of social and behavioral factors contributing to the current resurgence and recommendations for reducing syphilis incidence through medical and public health prevention strategies.
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Affiliation(s)
- Rebecca Schmidt
- Department of Public Health, North
Dakota State University, Fargo, ND, USA
| | - Paul James Carson
- Department of Public Health, North
Dakota State University, Fargo, ND, USA
- Center for Immunization Research and
Education, North Dakota State University, Fargo, ND, USA
| | - Rick J Jansen
- Department of Public Health, North
Dakota State University, Fargo, ND, USA
- Center for Immunization Research and
Education, North Dakota State University, Fargo, ND, USA
- Biostatistics Core Facility, North
Dakota State University, Fargo, ND, USA
- Genomics and Bioinformatics Program,
North Dakota State University, Fargo, ND, USA
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13
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Jansen RJ, Tong L, Argos M, Jasmine F, Rakibuz-Zaman M, Sarwar G, Islam MT, Shahriar H, Islam T, Rahman M, Yunus M, Kibriya MG, Baron JA, Ahsan H, Pierce BL. The effect of age on DNA methylation in whole blood among Bangladeshi men and women. BMC Genomics 2019; 20:704. [PMID: 31506065 PMCID: PMC6734473 DOI: 10.1186/s12864-019-6039-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 08/16/2019] [Indexed: 12/15/2022] Open
Abstract
Background It is well-known that methylation changes occur as humans age, however, understanding how age-related changes in DNA methylation vary by sex is lacking. In this study, we characterize the effect of age on DNA methylation in a sex-specific manner and determine if these effects vary by genomic context. We used the Illumina HumanMethylation 450 K array and DNA derived from whole blood for 400 adult participants (189 males and 211 females) from Bangladesh to identify age-associated CpG sites and regions and characterize the location of these age-associated sites with respect to CpG islands (vs. shore, shelf, or open sea) and gene regions (vs. intergenic). We conducted a genome-wide search for age-associated CpG sites (among 423,604 sites) using a reference-free approach to adjust for cell type composition (the R package RefFreeEWAS) and performed an independent replication analysis of age-associated CpGs. Results The number of age-associated CpGs (p < 5 x 10− 8) were 986 among men and 3479 among women of which 2027(63.8%) and 572 (64.1%) replicated (using Bonferroni adjusted p < 1.2 × 10− 5). For both sexes, age-associated CpG sites were more likely to be hyper-methylated with increasing age (compared to hypo-methylated) and were enriched in CpG islands and promoter regions compared with other locations and all CpGs on the array. Although we observed strong correlation between chronological age and previously-developed epigenetic age models (r ≈ 0.8), among our top (based on lowest p-value) age-associated CpG sites only 12 for males and 44 for females are included in these prediction models, and the median chronological age compared to predicted age was 44 vs. 51.7 in males and 45 vs. 52.1 in females. Conclusions Our results describe genome-wide features of age-related changes in DNA methylation. The observed associations between age and methylation were generally consistent for both sexes, although the associations tended to be stronger among women. Our population may have unique age-related methylation changes that are not captured in the established methylation-based age prediction model we used, which was developed to be non-tissue-specific. Electronic supplementary material The online version of this article (10.1186/s12864-019-6039-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Rick J Jansen
- Department of Public Health, North Dakota State University, Fargo, ND, USA.,Genomics and Bioinformatics Program, North Dakota State University, Fargo, ND, USA.,Biostatistics Core Facility, North Dakota State University, Fargo, ND, USA
| | - Lin Tong
- Department of Public Health Sciences, University of Chicago, 5841 S. Maryland Ave., W264, MC2000, Chicago, IL, 60637, USA
| | - Maria Argos
- Divison of Epidemiology and Biostatistics, School of Public Health, University of Illinois at Chicago, Chicago, IL, USA
| | - Farzana Jasmine
- Department of Public Health Sciences, University of Chicago, 5841 S. Maryland Ave., W264, MC2000, Chicago, IL, 60637, USA
| | | | - Golam Sarwar
- UChicago Research Bangladesh Mohakhali, Dhaka, 1230, Bangladesh
| | | | - Hasan Shahriar
- UChicago Research Bangladesh Mohakhali, Dhaka, 1230, Bangladesh
| | - Tariqul Islam
- UChicago Research Bangladesh Mohakhali, Dhaka, 1230, Bangladesh
| | - Mahfuzar Rahman
- UChicago Research Bangladesh Mohakhali, Dhaka, 1230, Bangladesh.,Research and Evaluation Division BRAC, Mohakhali, Dhaka, 1212, Bangladesh
| | - Md Yunus
- International Centre for Diarrhoeal Disease Research Bangladesh, Dhaka, 1000, Bangladesh
| | - Muhammad G Kibriya
- Department of Public Health Sciences, University of Chicago, 5841 S. Maryland Ave., W264, MC2000, Chicago, IL, 60637, USA
| | - John A Baron
- Department of Epidemiology, Gillings School of Global Public Health, University of North Caroline, Chapel Hill, NC, USA
| | - Habibul Ahsan
- Department of Public Health Sciences, University of Chicago, 5841 S. Maryland Ave., W264, MC2000, Chicago, IL, 60637, USA. .,Department of Medicine, The University of Chicago, Chicago, IL, USA. .,Department of Human Genetics and Comprehensive Cancer Center, The University of Chicago, Chicago, IL, USA.
| | - Brandon L Pierce
- Department of Public Health Sciences, University of Chicago, 5841 S. Maryland Ave., W264, MC2000, Chicago, IL, 60637, USA. .,Department of Human Genetics and Comprehensive Cancer Center, The University of Chicago, Chicago, IL, USA.
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14
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Tang AH, Reesema LLSV, Zheleva VP, Winston JS, Jansen RJ, Petricoin EF, Goetz MP, Goetz MP, Bear HD, Hoefer RA. Abstract 2145: Detect early tumor relapse in high-risk breast cancer. Cancer Res 2019. [DOI: 10.1158/1538-7445.am2019-2145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Chemotherapy resistant breast cancer is a major health challenge, resulting in high relapse rates and poor survival. Neoadjuvant chemotherapy (NACT) is a standard treatment for women with high-risk TNBC, HER2+, and locally advanced ER+ breast cancer. A completed course of NACT results in two possible outcomes: pathologic complete response (pCR) or residual disease. While pCR is a reliable clinical prognostic biomarker associated with excellent outcomes and prolonged survival, especially for TNBC and HER2+ cancers, patients with residual disease have a higher risk of recurrence. Patients with residual disease can be further stratified clinically using the Residual Cancer Burden (RCB) classification; however, patients with similar RCB classes may experience dramatically different clinical outcomes. Thus, additional precision biomarkers to stratify patients with residual disease after NACT are needed to identify patients at highest risk of recurrence, and to develop new therapeutic strategies to eradicate multidrug-resistant tumors.
Supported by strong evidence in developmental, evolutionary and cancer biology, we found that K-RAS-SIAH pathway activation is a major tumor driver, and SIAH represents a key tumor vulnerability in breast cancer. Normal K-RAS/SIAH signaling pathway activation is indispensable for proper cell-cell communication, cell proliferation and tissue homeostasis in multicellular organisms. However, abnormal K-RAS/SIAH pathway activation is highly prevalent in high-risk and locally advanced breast cancer, and may confer chemo-resistance to these high-risk mammary tumors. Based on its evolutionary conservation and significance as the most downstream signaling module indispensable for K-RAS signal transduction, SIAHON/OFF expression is a reliable readout of K-RAS/EGFR/HER2 pathway activation/inactivation. We showed that SIAHON/OFF expression is a binary code in residual mammary tumors that can be used to stratify patients, augment RCB classification, forecast tumor relapse, and predict patient survival after 1st line NACT in a pilot retrospective study.
Multidrug-resistant high-grade breast cancer is a genetically diverse, highly heterogeneous disease that challenges our ability to individualize and optimize precision therapy. Persistent K-RAS-SIAH-EGFR pathway activation endows TNBC with therapy resistance, and increases the risk of metastasis and early relapse. As such, we developed a K-RAS/SIAH-centered biomarker discovery program and a new anti-SIAH research initiative with the intended goal of designing novel and potentially life-saving anti-K-RAS targeted strategies to control and eradicate multidrug-resistant and intractable mammary tumors.
Citation Format: Amy H. Tang, Lauren L. Siewertsz van Reesema, Vasilena P. Zheleva, Janet S. Winston, Rick J. Jansen, Emanuel F. Petricoin, Matthew P. Goetz, Matthew P. Goetz, Harry D. Bear, Richard A. Hoefer. Detect early tumor relapse in high-risk breast cancer [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2019; 2019 Mar 29-Apr 3; Atlanta, GA. Philadelphia (PA): AACR; Cancer Res 2019;79(13 Suppl):Abstract nr 2145.
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Affiliation(s)
- Amy H. Tang
- 1Eastern Virginia Medical School, Norfolk, VA
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15
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Abstract
Several challenges present themselves when discussing current approaches to the prevention or treatment of pancreatic cancer. Up to 45% of the risk of pancreatic cancer is attributed to unknown causes, making effective prevention programs difficult to design. The most common type of pancreatic cancer, pancreatic ductal adenocarcinoma (PDAC), is generally diagnosed at a late stage, leading to a poor prognosis and 5-year survival estimate. PDAC tumors are heterogeneous, leading to many identified cell subtypes within one patient’s primary tumor. This explains why there is a high frequency of tumors that are resistant to standard treatments, leading to high relapse rates. This review will discuss how epigenetic technologies and epigenome-wide association studies have been used to address some of these challenges and the future promises these approaches hold.
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Affiliation(s)
- Rahul R Singh
- Department of Biological Sciences, North Dakota State University, Fargo, ND 58102, USA; (R.R.S.); (K.M.R.)
| | - Katie M Reindl
- Department of Biological Sciences, North Dakota State University, Fargo, ND 58102, USA; (R.R.S.); (K.M.R.)
| | - Rick J Jansen
- Department of Public Health, North Dakota State University, Fargo, ND 58102, USA
- Biostatistics Core Facility, North Dakota State University, Fargo, ND 58102, USA
- Center for Immunization Research and Education, North Dakota State University, Fargo, ND 58102, USA
- Genomics and Bioinformatics Program, North Dakota State University, Fargo, ND 58102, USA
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16
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Gold AL, Bennett K, Jansen RJ, Mobley AR, Procter SB, Smathers C, Contreras D, Peters P, Keim A, Oscarson R. Ripple Effects of the Communities Preventing Childhood Obesity Project. Health Promot Pract 2018; 21:308-318. [DOI: 10.1177/1524839918788581] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This research examines the practice of community coaching within coalitions in the Communities Preventing Childhood Obesity project. A quasi-experimental design was used in seven Midwestern states. Each state selected two rural, low-income communities with functioning health coalitions. Coalitions were randomly assigned to be intervention or comparison communities. After 4 years of the coaching intervention, ripple effect mapping served as one method for examining the coalitions’ work that may affect children’s weight status. A research team from each state conducted ripple effect mapping with their two coalitions, resulting in 14 ripple maps. Community capitals framework and the social–ecological model were used for coding the items identified within the ripple maps. A quantitative scoring analysis determined if differences existed between the intervention and comparison coalitions in terms of the activities, programs, funding, and partnerships for social–ecological model score (e.g., individual, community, policy levels), community capitals score, and ripples score (e.g., number of branches formed within the maps). All scores were higher in intervention communities; however, the differences were not statistically significant ( p > .05). Assessing community assets, such as availability of a community coach, is necessary in order to decide whether to deploy certain resources when designing health promotion strategies.
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Affiliation(s)
| | | | | | | | | | | | - Dawn Contreras
- Michigan State University Extension, East Lansing, MI, USA
| | - Paula Peters
- K-State Research and Extension, Manhattan, KS, USA
| | - Ann Keim
- University of Wisconsin–Extension, Cooperative Extension, Madison, WI, USA
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17
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Hall KJ, Howell MA, Jansen RJ, Carson PJ. Enforcement Associated With Higher School-Reported Immunization Rates. Am J Prev Med 2017; 53:892-897. [PMID: 29153127 DOI: 10.1016/j.amepre.2017.08.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 06/07/2017] [Accepted: 08/09/2017] [Indexed: 12/01/2022]
Abstract
INTRODUCTION North Dakota's school-reported kindergarten immunization rates were among the lowest in the U.S. during the 2015-2016 school year. Ninety percent of kindergartners were fully immunized in accordance with state requirements, 3% had an exemption, and as many as 7% were noncompliant. School enforcement of immunization requirements has been noted as variable. This study sought to better understand the relationship between school-reported immunization rates and the enforcement of immunization requirements. METHODS Kindergarten immunization rates were compared between schools annually enforcing immunization requirements to the point of excluding noncompliant children and schools not enforcing. In addition, immunization rates were assessed after an educational intervention that led some school districts to change their enforcement policies during the 2015-2016 school year. Analyses were completed in 2016 and 2017. RESULTS Kindergarten immunization rates were significantly higher in schools that annually enforced compared with schools that did not enforce (p≤0.001, all vaccines; difference between means: diphtheria-tetanus-attenuated pertussis=7.5% [95% CI=3.9%, 11.1%]; polio=6.2% [95% CI=3.3%, 9.1%]; measles, mumps, and rubella=7% [95% CI=3.5%, 10.5%]; hepatitis B=3.7% [95% CI=1.5%, 5.9%]; and varicella=6.9% [95% CI=3.4%, 10.4%]). School districts that began enforcing saw a significant increase in vaccination rates (diphtheria-tetanus-attenuated pertussis=6% [95% CI=2%, 11%] and measles, mumps, and rubella=7% [95% CI=3%, 11%]). Enforcement in newly enforcing districts led to a large decrease in the number of noncompliant students and did not lead to significant increases in exemption rates. CONCLUSIONS In North Dakota, lack of school enforcement is strongly associated with lower immunization rates and a large noncompliant population. Addressing noncompliance through school enforcement could significantly increase school-reported immunization rates.
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Affiliation(s)
- Kylie J Hall
- Center for Immunization Research and Education, Department of Public Health, North Dakota State University, Fargo, North Dakota.
| | - Molly A Howell
- North Dakota Department of Health, Bismarck, North Dakota
| | - Rick J Jansen
- Center for Immunization Research and Education, Department of Public Health, North Dakota State University, Fargo, North Dakota
| | - Paul J Carson
- Center for Immunization Research and Education, Department of Public Health, North Dakota State University, Fargo, North Dakota
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18
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Abstract
Pancreatic cancer is the fourth most common cause of cancer-related deaths with a dismal average five-year survival rate of six percent. Substitutional progress has been made in understanding how pancreatic cancer develops and progresses. Evidence is mounting which demonstrates that diet and nutrition are key factors in carcinogenesis. In particular, diets low in folate and high in fruits, vegetables, red/processed meat, and saturated fat have been identified as pancreatic cancer risk factors with a proposed mechanism involving epigenetic modifications or gene regulation. We review the current literature assessing the correlation between diet, epigenetics, and pancreatic cancer.
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Affiliation(s)
- Andee Weisbeck
- Department of Public Health, North Dakota State University, Fargo, ND 58102, USA.
| | - Rick J Jansen
- Department of Public Health, North Dakota State University, Fargo, ND 58102, USA.
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19
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van Reesema LLS, Zheleva V, Winston JS, Jansen RJ, O'Connor CF, Isbell AJ, Bian M, Qin R, Bassett PT, Hinson VJ, Dorsch KA, Kirby BW, Van Sciver RE, Tang-Tan AM, Harden EA, Chang DZ, Allen CA, Perry RR, Hoefer RA, Tang AH. SIAH and EGFR, Two RAS Pathway Biomarkers, are Highly Prognostic in Locally Advanced and Metastatic Breast Cancer. EBioMedicine 2016; 11:183-198. [PMID: 27569656 PMCID: PMC5049993 DOI: 10.1016/j.ebiom.2016.08.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 08/03/2016] [Accepted: 08/10/2016] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Metastatic breast cancer exhibits diverse and rapidly evolving intra- and inter-tumor heterogeneity. Patients with similar clinical presentations often display distinct tumor responses to standard of care (SOC) therapies. Genome landscape studies indicate that EGFR/HER2/RAS "pathway" activation is highly prevalent in malignant breast cancers. The identification of therapy-responsive and prognostic biomarkers is paramount important to stratify patients and guide therapies in clinical oncology and personalized medicine. METHODS In this study, we analyzed matched pairs of tumor specimens collected from 182 patients who received neoadjuvant systemic therapies (NST). Statistical analyses were conducted to determine whether EGFR/HER2/RAS pathway biomarkers and clinicopathological predictors, alone and in combination, are prognostic in breast cancer. FINDINGS SIAH and EGFR outperform ER, PR, HER2 and Ki67 as two logical, sensitive and prognostic biomarkers in metastatic breast cancer. We found that increased SIAH and EGFR expression correlated with advanced pathological stage and aggressive molecular subtypes. Both SIAH expression post-NST and NST-induced changes in EGFR expression in invasive mammary tumors are associated with tumor regression and increased survival, whereas ER, PR, and HER2 were not. These results suggest that SIAH and EGFR are two prognostic biomarkers in breast cancer with lymph node metastases. INTERPRETATION The discovery of incorporating tumor heterogeneity-independent and growth-sensitive RAS pathway biomarkers, SIAH and EGFR, whose altered expression can be used to estimate therapeutic efficacy, detect emergence of resistant clones, forecast tumor regression, differentiate among partial responders, and predict patient survival in the neoadjuvant setting, has a clear clinical implication in personalizing breast cancer therapy. FUNDING This work was supported by the Dorothy G. Hoefer Foundation for Breast Cancer Research (A.H. Tang); Center for Innovative Technology (CIT)-Commonwealth Research Commercialization Fund (CRCF) (MF14S-009-LS to A.H. Tang), and National Cancer Institute (CA140550 to A.H. Tang).
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Affiliation(s)
- Lauren L Siewertsz van Reesema
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA 23507, United States
| | - Vasilena Zheleva
- Department of Surgery, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA 23507, United States
| | - Janet S Winston
- Sentara Pathology and Pathology Sciences Medical Group, Department of Pathology, Sentara Norfolk General Hospital (SNGH), 600 Gresham Drive, Norfolk, VA 23507, United States
| | - Rick J Jansen
- Department of Public Health, North Dakota State University, Fargo, ND 58102, United States
| | - Carolyn F O'Connor
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA 23507, United States
| | - Andrew J Isbell
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA 23507, United States
| | - Minglei Bian
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA 23507, United States
| | - Rui Qin
- Department of Health Sciences Research, Mayo Clinic Cancer Center, Mayo Clinic, Rochester, MN 55905, United States
| | - Patricia T Bassett
- Sentara Pathology and Pathology Sciences Medical Group, Department of Pathology, Sentara Norfolk General Hospital (SNGH), 600 Gresham Drive, Norfolk, VA 23507, United States
| | - Virginia J Hinson
- Sentara Pathology and Pathology Sciences Medical Group, Department of Pathology, Sentara Norfolk General Hospital (SNGH), 600 Gresham Drive, Norfolk, VA 23507, United States
| | - Kimberly A Dorsch
- Sentara Cancer Network, 11803 Jefferson Avenue, Suite 235, Newport News, Virginia 23606, United States
| | - Brad W Kirby
- Sentara Cancer Network, 11803 Jefferson Avenue, Suite 235, Newport News, Virginia 23606, United States
| | - Robert E Van Sciver
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA 23507, United States
| | - Angela M Tang-Tan
- Princess Anne High School, International Baccalaureate (IB) Gifted and Talented Program, 4400 Virginia Beach Boulevard, Virginia Beach, VA 23462, United States
| | - Elizabeth A Harden
- Dorothy G. Hoefer Comprehensive Breast Center, 11803 Jefferson Avenue, Suite 235, Newport News, Virginia 23606, United States; Virginia Oncology Associates, 1051 Loftis Blvd, Suite 100, Newport News, VA 23606, United States
| | - David Z Chang
- Virginia Oncology Associates, 1051 Loftis Blvd, Suite 100, Newport News, VA 23606, United States
| | - Cynthia A Allen
- Sentara Cancer Network, 11803 Jefferson Avenue, Suite 235, Newport News, Virginia 23606, United States
| | - Roger R Perry
- Department of Surgery, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA 23507, United States
| | - Richard A Hoefer
- Sentara Cancer Network, 11803 Jefferson Avenue, Suite 235, Newport News, Virginia 23606, United States; Dorothy G. Hoefer Comprehensive Breast Center, 11803 Jefferson Avenue, Suite 235, Newport News, Virginia 23606, United States; Sentara CarePlex Hospital, 11803 Jefferson Avenue, Suite 235, Newport News, Virginia 23606, United States
| | - Amy H Tang
- Department of Microbiology and Molecular Cell Biology, Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA 23507, United States.
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20
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Jansen RJ, Argos M, Tong L, Li J, Rakibuz-Zaman M, Islam MT, Slavkovich V, Ahmed A, Navas-Acien A, Parvez F, Chen Y, Gamble MV, Graziano JH, Pierce BL, Ahsan H. Determinants and Consequences of Arsenic Metabolism Efficiency among 4,794 Individuals: Demographics, Lifestyle, Genetics, and Toxicity. Cancer Epidemiol Biomarkers Prev 2015; 25:381-90. [PMID: 26677206 DOI: 10.1158/1055-9965.epi-15-0718] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 11/18/2015] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Exposure to inorganic arsenic (iAs), a class I carcinogen, affects several hundred million people worldwide. Once absorbed, iAs is converted to monomethylated (MMA) and then dimethylated forms (DMA), with methylation facilitating urinary excretion. The abundance of each species in urine relative to their sum (iAs%, MMA%, and DMA%) varies across individuals, reflecting differences in arsenic metabolism capacity. METHODS The association of arsenic metabolism phenotypes with participant characteristics and arsenical skin lesions was characterized among 4,794 participants in the Health Effects of Arsenic Longitudinal Study (Araihazar, Bangladesh). Metabolism phenotypes include those obtained from principal component (PC) analysis of arsenic species. RESULTS Two independent PCs were identified: PC1 appears to represent capacity to produce DMA (second methylation step), and PC2 appears to represent capacity to convert iAs to MMA (first methylation step). PC1 was positively associated (P <0.05) with age, female sex, and BMI, while negatively associated with smoking, arsenic exposure, education, and land ownership. PC2 was positively associated with age and education but negatively associated with female sex and BMI. PC2 was positively associated with skin lesion status, while PC1 was not. 10q24.32/AS3MT region polymorphisms were strongly associated with PC1, but not PC2. Patterns of association for most variables were similar for PC1 and DMA%, and for PC2 and MMA% with the exception of arsenic exposure and SNP associations. CONCLUSIONS Two distinct arsenic metabolism phenotypes show unique associations with age, sex, BMI, 10q24.32 polymorphisms, and skin lesions. IMPACT This work enhances our understanding of arsenic metabolism kinetics and toxicity risk profiles.
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Affiliation(s)
- Rick J Jansen
- Department of Public Health Sciences, The University of Chicago, Chicago, Illinois
| | - Maria Argos
- Divison of Epidemiology and Biostatistics, School of Public Health, University of Illinois at Chicago, Chicago, Illinois
| | - Lin Tong
- Department of Public Health Sciences, The University of Chicago, Chicago, Illinois
| | - Jiabei Li
- Department of Public Health Sciences, The University of Chicago, Chicago, Illinois
| | | | | | - Vesna Slavkovich
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York
| | | | - Ana Navas-Acien
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Faruque Parvez
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York
| | - Yu Chen
- Departments of Population Health and Environmental Medicine, New York University School of Medicine, New York, New York
| | - Mary V Gamble
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York
| | - Joseph H Graziano
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York
| | - Brandon L Pierce
- Department of Public Health Sciences, The University of Chicago, Chicago, Illinois. Department of Human Genetics and Comprehensive Cancer Center, The University of Chicago, Chicago, Illinois.
| | - Habibul Ahsan
- Department of Public Health Sciences, The University of Chicago, Chicago, Illinois. Department of Human Genetics and Comprehensive Cancer Center, The University of Chicago, Chicago, Illinois. Department of Medicine, The University of Chicago, Chicago, Illinois.
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21
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Jansen RJ, Tan XL, Petersen GM. Gene-by-Environment Interactions in Pancreatic Cancer: Implications for Prevention. Yale J Biol Med 2015; 88:115-26. [PMID: 26029010 PMCID: PMC4445433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Pancreatic cancer (PC) has been estimated to have higher incidence and correspondingly higher mortality rates in more developed regions worldwide. Overall, the age-adjusted incidence rate is 4.9/10(5) and age-adjusted mortality rate is at 4.8/10(5). We review here our current knowledge of modifiable risk factors (cigarette smoking, obesity, diet, and alcohol) for PC, genetic variants implicated by genome-wide association studies, possible genetic interactions with risk factors, and prevention strategies to provide future research directions that may further our understanding of this complex disease. Cigarette smoking is consistently associated with a two-fold increased PC risk. PC associations with dietary intake have been largely inconsistent, with the potential exception of certain unsaturated fatty acids decreasing risk and well-done red meat or meat mutagens increasing risk. There is strong evidence to support that obesity (and related measures) increase risk of PC. Only the heaviest alcohol drinkers seem to be at an increased risk of PC. Currently, key prevention strategies include avoiding tobacco and excessive alcohol consumption and adopting a healthy lifestyle. Screening technologies and PC chemoprevention are likely to become more sophisticated, but may only apply to those at high risk. Risk stratification may be improved by taking into account gene environment interactions. Research on these modifiable risk factors is key to reducing the incidence of PC and understanding who in the population can be considered high risk.
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Affiliation(s)
- Rick J. Jansen
- Department of Public Health Sciences, University of Chicago Biological Sciences, Chicago, Illinois,To whom all correspondence should be addressed: Rick Jansen, PhD, Department of Public Health Sciences, University of Chicago Biological Sciences, 5841 S. Maryland Ave., Rm N101D, MC2000, Chicago, IL 60637;
| | - Xiang-Lin Tan
- Rutgers Cancer Institute of New Jersey, Rutgers, The State University of New Jersey, New Brunswick, New Jersey,Department of Epidemiology, School of Public Health, Rutgers, The State University of New Jersey, Piscataway, New Jersey
| | - Gloria M. Petersen
- Division of Epidemiology, Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota
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22
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Jansen RJ, Fonseca-Williams S, Bamlet WR, Ayala-Peña S, Oberg AL, Petersen GM, Torres-Ramos CA. Detection of DNA damage in peripheral blood mononuclear cells from pancreatic cancer patients. Mol Carcinog 2014; 54:1220-6. [PMID: 25111947 DOI: 10.1002/mc.22189] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 02/25/2014] [Accepted: 05/12/2014] [Indexed: 02/03/2023]
Abstract
DNA repair is a key mechanism in maintaining genomic stability: repair deficiencies increase DNA damage and mutations that lead to several diseases, including cancer. We extracted DNA from peripheral blood mononuclear cells (PBMCs) of 48 pancreatic adenocarcinoma cases and 48 healthy controls to determine relative levels of nuclear DNA (nDNA) and mitochondrial DNA (mtDNA) damage by QPCR. All participants were never smokers and between the ages of 60 and 69. Average levels among cases were compared to controls using a rank sum test, and logistic regression adjusted for potential confounding factors (age, sex, and diabetes mellitus). Cases had less DNA damage, with a significant decrease in mtDNA damage (P-value = 0.03) and a borderline significant decrease in nDNA damage (P = 0.08). Across samples, we found mtDNA abundance was higher among non-diabetics compared to diabetics (P = 0.04). Our results suggest that patients with pancreatic adenocarcinoma have less DNA damage in their PBMCs, and that having diabetes, a known pancreatic cancer risk factor, is associated with lower levels of mtDNA abundance.
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Affiliation(s)
- Rick J Jansen
- Department of Health Sciences Research, Division of Epidemiology, Mayo Clinic, Rochester, Minnesota
| | | | - William R Bamlet
- Department of Health Sciences Research, Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, Minnesota
| | - Sylvette Ayala-Peña
- Department of Pharmacology and Toxicology, University of Puerto Rico, San Juan, Puerto Rico
| | - Ann L Oberg
- Department of Health Sciences Research, Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, Minnesota
| | - Gloria M Petersen
- Department of Health Sciences Research, Division of Epidemiology, Mayo Clinic, Rochester, Minnesota
| | - Carlos A Torres-Ramos
- Department of Physiology and Biophysics, University of Puerto Rico, San Juan, Puerto Rico
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23
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Jansen RJ, Robinson DP, Frank RD, Anderson KE, Bamlet WR, Oberg AL, Rabe KG, Olson JE, Sinha R, Petersen GM, Stolzenberg-Solomon RZ. Fatty acids found in dairy, protein and unsaturated fatty acids are associated with risk of pancreatic cancer in a case-control study. Int J Cancer 2013; 134:1935-46. [PMID: 24590454 DOI: 10.1002/ijc.28525] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Accepted: 09/20/2013] [Indexed: 01/02/2023]
Abstract
Although many studies have investigated meat and total fat in relation to pancreatic cancer risk, few have investigated dairy, fish and specific fatty acids (FAs). We evaluated the association between intake of meat, fish, dairy, specific FAs and related nutrients and pancreatic cancer. In our American-based Mayo Clinic case-control study 384 cases and 983 controls frequency matched on recruitment age, race, sex and residence area (Minnesota, Wisconsin or Iowa, USA) between 2004 and 2009. All subjects provided demographic information and completed 144-item food frequency questionnaire. Logistic regression-calculated odds ratios (ORs) and 95% confidence intervals (95% CIs) were adjusted for age, sex, cigarette smoking, body mass index and diabetes mellitus. Significant inverse association (trend p-value < 0.05) between pancreatic cancer and the groupings (highest vs. lowest consumption quintile OR [95% CI]) was as follows: meat replacement (0.67 [0.43-1.02]), total protein (0.58 [0.39-0.86]), vitamin B12 (0.67 [0.44, 1.01]), zinc (0.48 [0.32, 0.71]), phosphorus (0.62 [0.41, 0.93]), vitamin E (0.51 [0.33, 0.78]), polyunsaturated FAs (0.64 [0.42, 0.98]) and linoleic acid (FA 18:2) (0.62 [0.40-0.95]). Increased risk associations were observed for saturated FAs (1.48 [0.97-2.23]), butyric acid (FA 4:0) (1.77 [1.19-2.64]), caproic acid (FA 6:0) (2.15 [1.42-3.27]), caprylic acid (FA 8:0) (1.87 [1.27-2.76]) and capric acid (FA 10:0) (1.83 [1.23-2.74]). Our study suggests that eating a diet high in total protein and certain unsaturated FAs is associated with decreased risk of developing pancreatic cancer in a dose-dependent manner, whereas fats found in dairy increase risk.
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Affiliation(s)
- Rick J Jansen
- Division of Epidemiology Department of Health Sciences Research, Mayo Clinic, Rochester, MN
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24
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Jansen RJ, Robinson DP, Stolzenberg-Solomon RZ, Bamlet WR, Tan X, Cunningham JM, Li Y, Rider DN, Oberg AL, Rabe KG, Anderson KE, Sinha R, Petersen GM. Polymorphisms in metabolism/antioxidant genes may mediate the effect of dietary intake on pancreatic cancer risk. Pancreas 2013; 42:1043-53. [PMID: 24051964 PMCID: PMC3779344 DOI: 10.1097/mpa.0b013e3182968e00] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVES A source of variation for inconsistent dietary-pancreatic cancer associations may be individuals carrying constitutional metabolism/antioxidant gene variants that differentially benefit compared to homozygous individuals. Seventy-six tag single-nucleotide polymorphisms were genotyped in 13 candidate genes to test differential associations with pancreatic adenocarcinoma. METHODS A clinic-based case-control design was used to rapidly ascertain 251 cases and 970 frequency matched controls who provided blood samples and completed a 144-item food frequency questionnaire. Single-nucleotide polymorphisms were evaluated using a dominant genetic model and dietary categories split on controls' median intake. Logistic regression was used to calculate odds ratios and 95% confidence intervals, adjusted for potential confounders. RESULTS Significant increased associations (Bonferroni corrected P ≤ 0.0007) were observed for carriers of greater than or equal to 1 minor allele for rs3816257 (glucosidase, α; acid [GAA]) and lower intake of deep-yellow vegetables (1.90 [1.28-2.83]); and carriers of no minor allele for rs12807961 (catalase [CAT]) and high total grains intake (2.48 [1.50-4.09]), whereas those with greater than or equal to 1 minor allele had a decreasing slope (across grains). The reference group was no minor alleles with low dietary intake. CONCLUSIONS Interindividual variation in metabolism/antioxidant genes could interact with dietary intake to influence pancreatic cancer risk.
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Affiliation(s)
- Rick J Jansen
- From the Divisions of *Epidemiology, and †Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, MN; ‡Department of Epidemiology, National Institutes of Health, Bethesda, MD; §Department of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN; and ∥Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
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25
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Jansen RJ, Alexander BH, Anderson KE, Church TR. Quantifying lead-time bias in risk factor studies of cancer through simulation. Ann Epidemiol 2013; 23:735-41. [PMID: 23988688 DOI: 10.1016/j.annepidem.2013.07.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Revised: 06/25/2013] [Accepted: 07/22/2013] [Indexed: 11/28/2022]
Abstract
PURPOSE Lead-time is inherent in early detection and creates bias in observational studies of screening efficacy, but its potential to bias effect estimates in risk factor studies is not always recognized. We describe a form of this bias that conventional analyses cannot address and develop a model to quantify it. METHODS Surveillance Epidemiology and End Results (SEER) data form the basis for estimates of age-specific preclinical incidence, and log-normal distributions describe the preclinical duration distribution. Simulations assume a joint null hypothesis of no effect of either the risk factor or screening on the preclinical incidence of cancer, and then quantify the bias as the risk-factor odds ratio (OR) from this null study. This bias can be used as a factor to adjust observed OR in the actual study. RESULTS For this particular study design, as average preclinical duration increased, the bias in the total-physical activity OR monotonically increased from 1% to 22% above the null, but the smoking OR monotonically decreased from 1% above the null to 5% below the null. CONCLUSIONS The finding of nontrivial bias in fixed risk-factor effect estimates demonstrates the importance of quantitatively evaluating it in susceptible studies.
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Affiliation(s)
- Rick J Jansen
- Department of Environmental Health Sciences, School of Public Health, University of Minnesota, Rochester, MN.
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26
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Jansen RJ, Robinson DP, Frank RD, Stolzenberg-Solomon RZ, Bamlet WR, Oberg AL, Rabe KG, Olson JE, Petersen GM, Sinha R, Anderson KE. Meat-related mutagens and pancreatic cancer: null results from a clinic-based case-control study. Cancer Epidemiol Biomarkers Prev 2013; 22:1336-9. [PMID: 23632817 DOI: 10.1158/1055-9965.epi-13-0343] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Pancreatic cancer is a devastating disease for which the role of dietary factors remains inconclusive. The study objective was to evaluate risk of pancreatic cancer associated with meat preparation methods and meat-related mutagen consumption using a clinic-based case-control design. METHODS There were 384 cases and 983 controls; subjects provided demographic information and completed a 144-item food frequency questionnaire, which was used to estimate meat mutagen intake using the National Cancer Institute's CHARRED database (Bethesda, MD). Logistic regression was used to calculate ORs and 95% confidence intervals (CI), adjusted for factors including age, sex, cigarette smoking, body mass index, and diabetes mellitus. RESULTS Overall, the findings were null with respect to meat mutagen intake and pancreatic cancer. CONCLUSIONS The results do not support an association between well-done meat or meat-related mutagen intake and pancreatic cancer and contrast with generally increased risks reported in previous studies. IMPACT These data contribute to evidence about pancreatic cancer and potentially carcinogenic compounds in meat.
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Affiliation(s)
- Rick J Jansen
- Division of Epidemiology, Department of Health Sciences Research, Mayo Clinic, Rochester, MN 55905, USA
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27
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Jansen RJ, Robinson DP, Stolzenberg-Solomon RZ, Bamlet WR, de Andrade M, Oberg AL, Hammer TJ, Rabe KG, Olson JE, Anderson KE, Sinha R, Petersen GM. Abstract A85: Fruit and vegetable consumption reduces the risk of pancreatic cancer. Cancer Prev Res (Phila) 2010. [DOI: 10.1158/1940-6207.prev-10-a85] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Pancreatic cancer is a devastating disease for which the role of dietary risk factors remains inconclusive. We evaluated fruit, vegetable, fiber, and grain consumption with pancreatic cancer risk using a clinic-based case-control design, excluding participants who reported changing their diet within 5 years prior to entering the study. Our study included 384 rapidly ascertained cases and 983 non-cases (frequency matched on age at time of recruitment (± 5 years), race, sex, and region of residence) who completed epidemiologic surveys and a 144-item food frequency questionnaire developed by the National Cancer Institute. Logistic regression was used to calculate odds ratios (OR) and 95% CIs, adjusted for age, sex, smoking, body mass index, energy intake, and alcohol consumption. Comparing highest to lowest quintiles, we observed significant (OR < 0.01) inverse associations with significant trends (ptrend < 0.01) for citrus, melon, and berries, other fruit, dark green vegetables, deep yellow vegetables, tomato, other vegetables, dry bean and pea, insoluble fiber, soluble fiber, and whole grains. Adjusting for diabetes or total sugar intake in the multivariate logistic regression model did not significantly affect results. Consuming a diet high in fruits, vegetables, fiber, and whole grains may reduce the risk of developing pancreatic cancer.
Citation Information: Cancer Prev Res 2010;3(12 Suppl):A85.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Kristin E. Anderson
- 3Department of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN
| | - Rashmi Sinha
- 4Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
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Carelsen B, Grolman W, Tange R, Streekstra GJ, van Kemenade P, Jansen RJ, Freling NJM, White M, Maat B, Fokkens WJ. Cochlear implant electrode array insertion monitoring with intra-operative 3D rotational X-ray. Clin Otolaryngol 2007; 32:46-50. [PMID: 17298312 DOI: 10.1111/j.1365-2273.2007.01319.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
During cochlear implantation surgery, we use a mobile C-arm with 3D functionality to acquire per-operative 3D X-ray images. Scanning the multielectrode array is performed once before removal of the stylet and once after full insertion. When dissatisfied with the position of the multielectrode a repositioning is considered which happened occasionally. The major advantage is the extra certainty of the multielectrode array position in the cochlea with low-dose and little extra time. All cochlear implantations are now routinely scanned during surgery.
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Affiliation(s)
- B Carelsen
- Department of Medical Physics, Academic Medical Center, Amsterdam, the Netherlands
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Jansen RJ, de Gelder R, Rowan AE, Scheeren HW, Nolte RJ. Molecular clips based on propanediurea: exceptionally high binding affinities for resorcinol guests. J Org Chem 2001; 66:2643-53. [PMID: 11304182 DOI: 10.1021/jo001317k] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of new receptor molecules derived from 2,4,6,8-tetraazabicyclo[3.3.1]nonane-3,7-dione (propanediurea) is described. These molecules possess a cavity which is defined by two nearly parallel aromatic side walls positioned on top of a bis-urea framework. The resulting "U-shaped" clip molecules are ideal hosts for the complexation of flat aromatic guest molecules. The affinity of these new propanediurea based molecular clips for dihydroxybenzene derivatives is exceptionally high, with association constants up to K(a) = 2 400 000 L mol(-)(1). Comparison of the binding mechanism of a variety of clip and half clip hosts, in conjunction with NMR, IR, and X-ray studies, has enabled the reason for this high binding to be elucidated. It is shown that subtle sub-angstrom changes in the geometry of the clip molecules have a great impact on their binding properties.
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Affiliation(s)
- R J Jansen
- Department of Organic Chemistry, NSR Center, University of Nijmegen, Toernooiveld, 6525 ED Nijmegen, The Netherlands
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30
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Affiliation(s)
- R J Jansen
- Department of Radiology, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands.
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Bräutigam C, Wevers RA, Jansen RJ, Smeitink JA, de Rijk-van Andel JF, Gabreëls FJ, Hoffmann GF. Biochemical hallmarks of tyrosine hydroxylase deficiency. Clin Chem 1998; 44:1897-904. [PMID: 9732974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
We report the biochemical hallmarks of tyrosine hydroxylase deficiency with emphasis on reliable diagnostic strategies of four new cases of an inborn error of tyrosine hydroxylase (TH). Three of our patients from different parts of the Netherlands were found homozygous for a mutation in exon 6 (G698A) of the TH gene, and one patient was found compound heterozygous for the same mutation and an additional mutation in exon 3. The first clinical symptoms of hypokinesia, rigidity of arms and legs and axial hypotonia, developed between 3 and 7 months of age. Cerebrospinal fluid investigations revealed a characteristic metabolite constellation in every case: low homovanillic acid (HVA) and 3-methoxy-4-hydroxyphenylethyleneglycol concentrations in the presence of normal reference range 5-hydroxyindolacetic acid concentrations. Strict adherence to a standardized lumbar puncture protocol and adequate age-related reference values are essential for diagnosis of this "new" treatable neurometabolic disorder. Urinary measurements of HVA, vanillylmandelic acid, and catecholamines can lead to false-negative conclusions. All patients showed a remarkable clinical improvement on a low dose of L-dihydroxyphenylalanine/ (S)-2-(3,4-dihydroxybenzyl)-2-hydrazinpropionic acid. During treatment, cerebrospinal fluid HVA, and 3-methoxy-4-hydroxy-phenylethyleneglycol increased substantially.
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Affiliation(s)
- C Bräutigam
- Department of Neuropaediatrics and Metabolic Diseases, University Hospital, Marburg, Germany
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Kroon AM, Jansen RJ. The effect of low concentrations of chlorampheicol on beating rat-heart cells in tissue culture. Biochim Biophys Acta 1968; 155:629-32. [PMID: 4295299 DOI: 10.1016/0005-2787(68)90212-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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