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Wieland LS, Shade S, Moffet I, Ansari A, Emadi A, Knott CL, Gorman EF, D’Adamo CR. Effects of Antioxidant Dietary Supplement Use upon Response to Cancer Treatment: A Scoping Review of Available Evidence. Nutr Cancer 2024; 76:902-913. [PMID: 39078314 PMCID: PMC11419937 DOI: 10.1080/01635581.2024.2385167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 07/19/2024] [Accepted: 07/22/2024] [Indexed: 07/31/2024]
Abstract
INTRODUCTION The effects of antioxidant dietary supplements on response to biological therapies for cancer is unknown. We conducted a scoping review of the available systematic review evidence on this question. METHODS AND ANALYSIS We searched six databases from inception to August 19, 2022 for systematic reviews of randomized controlled trials of antioxidant dietary supplements used by patients receiving curative chemotherapy, radiotherapy, or other biological therapy for cancer and assessing the impact of supplements on survival, treatment response, or disease progression. We focused on results from reviews at high or moderate AMSTAR-2 quality. Records were selected, data extracted, and AMSTAR-2 ratings assessed independently by two authors. RESULTS We found 24 systematic reviews with relevant evidence. Reviews were heterogenous in cancers, treatments, and antioxidant dietary supplements assessed. Conclusions across reviews were mixed, ranging from negative to no apparent difference to positive, but always with caveats about the limited size and quality of the evidence. One review was rated 'moderate' on AMSTAR-2; it included one small trial of vitamin C and formed no firm conclusions. CONCLUSIONS We did not find reliable systematic review evidence on the effects of antioxidant dietary supplements upon therapies for cancer. More research is necessary to inform clinical recommendations.
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Affiliation(s)
- L. Susan Wieland
- Department of Family and Community Medicine, Center for Integrative Medicine, University of Maryland School of Medicine, Baltimore MD
- Institute for Complementary and Integrative Medicine, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Sydney Shade
- Geisinger Commonwealth School of Medicine, Scranton PA
- Department of Medicine, University of Maryland School of Medicine, Baltimore MD
| | - Ilana Moffet
- University of Michigan College of Literature, Science, and the Arts, Ann Arbor MI
| | - Amir Ansari
- University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore MD
| | - Ashkan Emadi
- Department of Medicine, University of Maryland School of Medicine, Baltimore MD
- University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore MD
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore MD
- Department of Medical Oncology, West Virginia University School of Medicine, Morgantown, WV
- West Virginia University Cancer Institute, Morgantown, WV
| | - Cheryl L. Knott
- University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore MD
- Department of Behavioral and Community Health, University of Maryland, College Park MD
| | - Emily F. Gorman
- Health Sciences and Human Services Library, University of Maryland, Baltimore MD
| | - Christopher R. D’Adamo
- Department of Family and Community Medicine, Center for Integrative Medicine, University of Maryland School of Medicine, Baltimore MD
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Sun X, Chen S, Zhou G, Cheng H. Association between the dietary inflammatory index and all-cause mortality in the U.S. cancer survivors: A prospective cohort study using the National Health and Nutrition Examination Survey database. Prev Med Rep 2024; 37:102582. [PMID: 38259672 PMCID: PMC10801329 DOI: 10.1016/j.pmedr.2023.102582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 08/11/2023] [Accepted: 12/26/2023] [Indexed: 01/24/2024] Open
Abstract
Background Cancer remains one of the leading causes of mortality worldwide. Diet can impact inflammation and consequently affect cancer outcomes. The Dietary Inflammatory Index (DII) can serve as a tool to assess the inflammatory potential of cancer survivors' diets and further predict their survival. Objectives To investigate the relationship between the DII and the survival of cancer survivors in National Health and Nutrition Examination Survey (NHANES). Methods An overall sample of 2359 U.S. cancer survivors from the 2005-2014 cohorts of the NHANES were studied. The DII scores were calculated using 28 dietary components and the mortality status was ascertained until December 31, 2015. Based on the multiple analyses, the relationship between DII and all-cause mortality was examined. Results The weighted mean age at baseline was 65.17 ± 14.46 years, 53.16 % were female and 71.30 % were non-Hispanic white. The average DII was 1.51 ± 1.97. After accounting for multiple covariates, positive associations were observed (P < 0.01). Based on Kaplan-Meier survival curves, their significant relationship remains same and the survival probability was decreased among the groups of anti-inflammatory diets (DII < 0) versus pro-inflammatory diets (DII ≥ 0) significantly (Log rank test; P = 0.03). Further analyses were conducted on subgroups and the results are still robust. Conclusions An elevated DII was associated with a rising mortality rate among cancer survivors. DII might serve as a potential inflammatory predictor of cancer mortality prognosis, as well as guide nutritional care and even clinical treatment of cancer survivors.
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Affiliation(s)
- Xiaohe Sun
- Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People's Republic of China
- Jiangsu Collaborative Innovation Center of TCM Prevention and Treatment of Tumor, The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Shuai Chen
- The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Guowei Zhou
- Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Haibo Cheng
- Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People's Republic of China
- Jiangsu Collaborative Innovation Center of TCM Prevention and Treatment of Tumor, The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People's Republic of China
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Cortés-Jofré M, Madera M, Tirado-Amador L, Asenjo-Lobos C, Bonfill-Cosp X. Treatments for non-small cell lung cancer: a systematic quality assessment of clinical practice guidelines. Clin Transl Oncol 2023; 25:3541-3555. [PMID: 37254015 DOI: 10.1007/s12094-023-03223-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 05/19/2023] [Indexed: 06/01/2023]
Abstract
AIM To evaluate the methodological quality of clinical practice guidelines (CPGs) on treatments for non-small cell lung cancer (NSCLC). METHODS We searched MEDLINE, CPG developer websites, lung cancer societies, and oncology organizations to identify CPGs providing recommendations on treatments for NSCLC. The methodological quality for each CPG was determined independently by three appraisers using the AGREE II (Appraisal of Guidelines for Research and Evaluation II) instrument. RESULTS Twenty-two CPGs met the eligibility criteria. The median scores per AGREE II domain were: scope and purpose 90.7% (64.8-100%), stakeholder involvement 76.9% (27.8-96.3%); rigor of development 80.9% (27.1-92.4%); clarity of presentation 89.8% (50-100%); applicability 46.5% (12.5-87.5%); and editorial independence 91.7% (27.8-100%). Most of the CPGs (54.5%) were rated as "recommended with modifications" for clinical use. CONCLUSIONS Overall, the methodological quality of CPGs proving recommendations on the management of NSCLC is moderate, but there is still room for improvement in their development and implementation.
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Affiliation(s)
- Marcela Cortés-Jofré
- Doctoral Program in Research Methodology and Public Health, Universitat Autònoma de Barcelona, Barcelona, Spain
- Facultad de Medicina, Universidad Católica de la Santísima Concepción, Concepción, Chile
| | - Meisser Madera
- Faculty of Dentistry, Department of Research, Universidad de Cartagena, Cartagena, Colombia.
| | - Lesbia Tirado-Amador
- Programa de Odontología, Grupo GINOUS, Universidad del Sinú, Cartagena, Colombia
| | - Claudia Asenjo-Lobos
- Centro de Estudios Clínicos, Instituto de Ciencias e Innovación en Medicina (ICIM), Facultad de Medicina Clínica Alemana, Universidad de Desarrollo, Santiago, Chile
| | - Xavier Bonfill-Cosp
- Iberoamerican Cochrane Center, Institute of Biomedical Research Sant Pau (IIB Sant Pau), Barcelona, Spain
- Public Health and Clinical Epidemiology Service, Hospital de la Santa Creu i Sant Pau, CIBER de Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
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Leiter A, Veluswamy RR, Wisnivesky JP. The global burden of lung cancer: current status and future trends. Nat Rev Clin Oncol 2023; 20:624-639. [PMID: 37479810 DOI: 10.1038/s41571-023-00798-3] [Citation(s) in RCA: 157] [Impact Index Per Article: 157.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/20/2023] [Indexed: 07/23/2023]
Abstract
Lung cancer is the leading cause of cancer-related death worldwide. However, lung cancer incidence and mortality rates differ substantially across the world, reflecting varying patterns of tobacco smoking, exposure to environmental risk factors and genetics. Tobacco smoking is the leading risk factor for lung cancer. Lung cancer incidence largely reflects trends in smoking patterns, which generally vary by sex and economic development. For this reason, tobacco control campaigns are a central part of global strategies designed to reduce lung cancer mortality. Environmental and occupational lung cancer risk factors, such as unprocessed biomass fuels, asbestos, arsenic and radon, can also contribute to lung cancer incidence in certain parts of the world. Over the past decade, large-cohort clinical studies have established that low-dose CT screening reduces lung cancer mortality, largely owing to increased diagnosis and treatment at earlier disease stages. These data have led to recommendations that individuals with a high risk of lung cancer undergo screening in several economically developed countries and increased implementation of screening worldwide. In this Review, we provide an overview of the global epidemiology of lung cancer. Lung cancer risk factors and global risk reduction efforts are also discussed. Finally, we summarize lung cancer screening policies and their implementation worldwide.
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Affiliation(s)
- Amanda Leiter
- Division of Endocrinology, Diabetes, and Bone Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Rajwanth R Veluswamy
- Division of Hematology and Oncology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Juan P Wisnivesky
- Division of General Internal Medicine, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Cao M, He C, Gong M, Wu S, He J. The effects of vitamin D on all-cause mortality in different diseases: an evidence-map and umbrella review of 116 randomized controlled trials. Front Nutr 2023; 10:1132528. [PMID: 37426183 PMCID: PMC10325578 DOI: 10.3389/fnut.2023.1132528] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 06/08/2023] [Indexed: 07/11/2023] Open
Abstract
Purpose To conduct a solid evidence by synthesizing meta-analyses and updated RCTs about the effects of vitamin D on all-cause mortality in different health conditions. Methods Data sources: Pubmed, Embase, Web of Science, the Cochrane Library, Google Scholar from inception until 25th April, 2022. Study selection: English-language, meta-analyses and updated RCTs assessing the relationships between vitamin D and all-cause mortality. Data synthesis: Information of study characteristics, mortality, supplementation were extracted, estimating with fixed-effects model. A Measurement Tool to Assess Systematic Reviews, Grading of Recommendations Assessment, Development and Evaluation, and funnel plot was used to assess risk of bias. Main outcomes: All-cause mortality, cancer mortality, cardiovascular disease mortality. Results In total of 27 meta-analyses and 19 updated RCTs were selected, with a total of 116 RCTs and 149, 865 participants. Evidence confirms that vitamin D reduces respiratory cancer mortality (RR, 0.56 [95%CI, 0.33 to 0.96]). All-cause mortality is decreased in patients with COVID-19 (RR, 0.54[95%CI, 0.33 to 0.88]) and liver diseases (RR, 0.64 [95%CI, 0.50 to 0.81]), especially in liver cirrhosis (RR, 0.63 [95%CI, 0.50 to 0.81]). As for other health conditions, such as the general health, chronic kidney disease, critical illness, cardiovascular diseases, musculoskeletal diseases, sepsis, type 2 diabetes, no significant association was found between vitamin D and all-cause mortality. Conclusions Vitamin D may reduce respiratory cancer mortality in respiratory cancer patients and all-cause mortality in COVID-19 and liver disorders' patients. No benefits showed in all-cause mortality after vitamin D intervention among other health conditions. The hypothesis of reduced mortality with vitamin D still requires exploration. Systematic review registration https://www.crd.york.ac.uk/PROSPERO/display_record.php?RecordID=252921, identifier: CRD42021252921.
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Affiliation(s)
- Mingyu Cao
- Department of Orthopaedic Surgery, Third Xiangya Hospital of Central South University, Changsha, China
| | - Chunrong He
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Matthew Gong
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Song Wu
- Department of Orthopaedic Surgery, Third Xiangya Hospital of Central South University, Changsha, China
| | - Jinshen He
- Department of Orthopaedic Surgery, Third Xiangya Hospital of Central South University, Changsha, China
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Peng L, Xu Q, Yin S, Zhang Y, Wu H, Liu Y, Chen L, Hu Y, Yuan J, Peng K, Lin Q. The emerging nanomedicine-based technology for non-small cell lung cancer immunotherapy: how far are we from an effective treatment. Front Oncol 2023; 13:1153319. [PMID: 37182180 PMCID: PMC10172578 DOI: 10.3389/fonc.2023.1153319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 04/11/2023] [Indexed: 05/16/2023] Open
Abstract
Non-small cell lung cancer (NSCLC) is a prominent etiology of cancer-related mortality. The heterogeneous nature of this disease impedes its accurate diagnosis and efficacious treatment. Consequently, constant advancements in research are imperative in order to comprehend its intricate nature. In addition to currently available therapies, the utilization of nanotechnology presents an opportunity to enhance the clinical outcomes of NSCLC patients. Notably, the burgeoning knowledge of the interaction between the immune system and cancer itself paves the way for developing novel, emerging immunotherapies for treating NSCLC in the early stages of the disease. It is believed that with the novel engineering avenues of nanomedicine, there is a possibility to overcome the inherent limitations derived from conventional and emerging treatments, such as off-site drug cytotoxicity, drug resistance, and administration methods. Combining nanotechnology with the convergence points of current therapies could open up new avenues for meeting the unmet needs of NSCLC treatment.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Qin Lin
- Department of Thoracic Surgery, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
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Liu J, He L, Wang A, Lv Y, He H, Wang C, Xiong K, Zhao L. Oxidative balance score reflects vascular endothelial function of Chinese community dwellers. Front Physiol 2023; 14:1076327. [PMID: 37138670 PMCID: PMC10150015 DOI: 10.3389/fphys.2023.1076327] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 03/27/2023] [Indexed: 05/05/2023] Open
Abstract
Background: The oxidative balance score (OBS) is a composite estimate of the overall pro- and antioxidant risk status in an individual. The aim of this study is to explore the association between the OBS and vascular endothelial function in Chinese community dwellers. Methods: In total, 339 community dwelling adults (aged 20-75 years) were recruited in this study. The overall OBS was calculated on the basis of 16 pro- and antioxidant factors related to diet (measured by fasting blood samples) and lifestyle (evaluated by questionnaires). The dietary OBS and lifestyle OBS were calculated on the basis of the corresponding components. Serum iso-prostaglandin F2α (FIP) was measured to evaluate the oxidative stress degree, and brachial artery blood flow-mediated dilation (FMD) was measured for vascular endothelial function. The FIP and FMD levels were dichotomized as "low" or "high" using the corresponding median values (low FIP, n = 159; high FIP, n = 180; low FMD, n = 192; and high FMD, n = 147). The components of the OBS were compared between the stratified FIP and FMD groups. Logistic regression was used to analyze the OBS associations with FIP and FMD. Results: The higher overall OBS and dietary OBS were associated with lower FIP (p < 0.001), whereas the higher overall OBS (p < 0.01) and dietary OBS (p < 0.05) were associated with higher FMD. The lifestyle OBS was not associated with FIP and FMD (p > 0.05). Except for the body mass index (BMI) and low physical activity, all other OBS components were significantly different between the low FIP and high FIP groups (p < 0.05). Four diet-related antioxidants (α-carotene, zeaxanthin, α-tocopherol, and γ-tocopherol) showed significant differences between the high and low FMD groups (p < 0.05). Conclusion: The decreasing OBS level was associated with low endothelial function and high oxidative stress. The dietary OBS, rather than the lifestyle OBS, was more closely associated with endothelial function.
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Affiliation(s)
- Jianhua Liu
- Department of Exercise Physiology, Beijing Sport University, Beijing, China
- College of Physical Education, WeiFang University, WeiFang, Shandong, China
| | - Lingxiao He
- School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Aozhe Wang
- Department of Exercise Physiology, Beijing Sport University, Beijing, China
| | - Yuanyuan Lv
- Department of Exercise Physiology, Beijing Sport University, Beijing, China
| | - Hui He
- Department of Exercise Physiology, Beijing Sport University, Beijing, China
| | - Chenghao Wang
- Department of Exercise Physiology, Beijing Sport University, Beijing, China
| | - Kaiyu Xiong
- Department of Exercise Physiology, Beijing Sport University, Beijing, China
| | - Li Zhao
- Department of Exercise Physiology, Beijing Sport University, Beijing, China
- *Correspondence: Li Zhao,
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Chen H, Du Z, Zhang Y, Li M, Gao R, Qin L, Wang H. The Association Between Vitamin C and Cancer: A Two-Sample Mendelian Randomization Study. Front Genet 2022; 13:868408. [PMID: 35601498 PMCID: PMC9117647 DOI: 10.3389/fgene.2022.868408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 04/07/2022] [Indexed: 11/21/2022] Open
Abstract
In recent years, many studies have indicated that vitamin C might be negatively associated with the risk of cancer, but the actual relationship between vitamin C and cancer remains ambivalent. Therefore, we utilized a two-sample Mendelian randomization (MR) study to explore the causal associations of genetically predicted vitamin C with the risk of a variety of cancers. Single-nucleotide polymorphisms (SNPs) associated with vitamin C at a significance level of p < 5 × 10-8 and with a low level of linkage disequilibrium (LD) (r2 < 0.01) were selected from a genome-wide association study (GWAS) meta-analysis of plasmid concentration of vitamin C consisting of 52,018 individuals. The data of the GWAS outcomes were obtained from United Kingdom Biobank, FinnGen Biobank and the datasets of corresponding consortia. In the inverse-variance weight (IVW) method, our results did not support the causal association of genetically predicted vitamin C with the risk of overall cancer and 14 specific types of cancer. Similar results were observed in sensitivity analyses where the weighted median and MR-Egger methods were adopted, and heterogeneity and pleiotropy were not observed in statistical models. Therefore, our study suggested that vitamin C was not causally associated with the risk of cancer. Further studies are warranted to discover the potential protective and therapeutic effects of vitamin C on cancer, and its underlying mechanisms.
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Affiliation(s)
- Hanxiao Chen
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of the Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
- Reproductive Center, Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Ze Du
- Department of Orthopedics, Research Institute of Orthopedics, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, China
| | - Yaoyao Zhang
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of the Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
- Reproductive Center, Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Mengling Li
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of the Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
- Reproductive Center, Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Rui Gao
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of the Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
- Reproductive Center, Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Lang Qin
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of the Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
- Reproductive Center, Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Hongjing Wang
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of the Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
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Zhao H, Jin X. Causal associations between dietary antioxidant vitamin intake and lung cancer: A Mendelian randomization study. Front Nutr 2022; 9:965911. [PMID: 36118777 PMCID: PMC9479338 DOI: 10.3389/fnut.2022.965911] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 08/08/2022] [Indexed: 11/13/2022] Open
Abstract
Background Oxidative stress is currently considered to be closely related to the occurrence of respiratory tumors, especially lung cancer. Many observational studies have shown that increased antioxidant intake can reduce the risk of lung cancer, but the results are still controversial. Therefore, we performed a two-sample Mendelian randomized (MR) analysis to clarify the causal relationship between antioxidant vitamins and lung cancer. Methods To assess the causal effect of dietary antioxidant vitamin intake on lung cancer, we conducted a two-sample MR analysis and we extracted single-nucleotide polymorphisms (SNPs) that are associated with antioxidants from genome-wide association studies (GWASs) of the UK biobank. We gathered summary data for lung cancer from the International Lung Cancer Consortium (ILCCO), including 11,348 cases and 15,861 controls, and applied the inverse-variance weighted (IVW) method as the primary MR analysis, and performed a sensitivity analysis to verify the results. Results The results showed that higher dietary retinol intake was causally associated with lung cancer overall [odds ratio (OR) = 1.844, 95% CI, 1.359-2.502, p = 0.00009], squamous cell lung cancer (OR = 2.162, 95% CI, 1.117-4.183, p = 0.022), and lung adenocarcinoma (OR = 1.706, 95% CI, 1.084-2.685, p = 0.021). Additionally, carotene was positively correlated with lung adenocarcinoma (OR = 1.510, 95% CI, 1.002-2.276, p = 0.049). However, there was a non-significant relationship between the intake of other dietary antioxidants (vitamin C and vitamin E) and lung cancer. Conclusion Our research showed that dietary retinol intake has an adverse impact on lung cancer, and carotene might increase the risk of adenocarcinoma. This highlights the importance of revealing the underlying mechanisms of dietary antioxidant vitamins in lung cancer and delivers an important health message that dietary antioxidant vitamin intake may not be necessary for the prevention of lung cancer. It also provides a basis for future research.
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Affiliation(s)
- Hang Zhao
- Peking University China-Japan Friendship School of Clinical Medicine, Beijing, China.,Department of Urology, China-Japan Friendship Hospital, Beijing, China
| | - Xiaolin Jin
- Department of International Physical Examination Center, The First Affiliated Hospital of China Medical University, Shengyang, China
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Qian M, Lin J, Fu R, Qi S, Fu X, Yuan L, Qian L. The Role of Vitamin D Intake on the Prognosis and Incidence of Lung Cancer: A Systematic Review and Meta-Analysis. J Nutr Sci Vitaminol (Tokyo) 2021; 67:273-282. [PMID: 34719612 DOI: 10.3177/jnsv.67.273] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The correlation between vitamin D intake and lung cancer development is controversial. This meta-analysis aims to evaluate the relationship between vitamin D and the prognosis and incidence of lung cancer. A comprehensive database search on PubMed, Web of Science, EBSCO, and Cochrane Library was carried out from the beginning to November 2020. Long-term survival and the incidence rate of patients with lung cancer were the primary outcomes of the study. Ten eligible studies were selected for the meta-analysis following specific inclusion and exclusion criteria. Four included studies, covering 5,007 patients, compared the overall survival (OS) and relapse-free survival (RFS) of lung cancer patients among total vitamin D users with non-users. Significantly, the estimated pooled hazard ratio (HR) revealed that vitamin D could improve OS and RFS of lung cancer patients [HR=0.83, 95% CI (0.72-0.95); HR=0.79, 95% CI (0.61-0.97), respectively]. Vitamin D intake was inversely associated with lung cancer incidence in six studies [OR=0.90, 95% CI (0.83-0.97)]. The present meta-analysis shows vitamin D not only improves the long-term survival of lung cancer patients but has a beneficial effect on the incidence of lung cancer. Notwithstanding, more studies are needed to confirm the study results.
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Affiliation(s)
- Mingxia Qian
- School of Public Health, Zhejiang Chinese Medical University
| | - Jun Lin
- Emergency Medical Center, Ningbo Yinzhou No. 2 Hospital
| | - Rongrong Fu
- The First Clinical Medical College, Zhejiang Chinese Medical University
| | - Shuping Qi
- School of Public Health, Zhejiang Chinese Medical University
| | - Xiaojun Fu
- Department of General Surgery, HwaMei Hospital, University of Chinese Academy of Sciences
| | - Lingling Yuan
- Department of General Surgery, HwaMei Hospital, University of Chinese Academy of Sciences
| | - Lilin Qian
- Emergency Medical Center, Ningbo Yinzhou No. 2 Hospital
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Wierzejska RE. Dietary Supplements-For Whom? The Current State of Knowledge about the Health Effects of Selected Supplement Use. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:8897. [PMID: 34501487 PMCID: PMC8431076 DOI: 10.3390/ijerph18178897] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/16/2021] [Accepted: 08/21/2021] [Indexed: 12/18/2022]
Abstract
Dietary supplements are products containing nutrients sold in various medicinal forms, and their widespread use may stem from the conviction that a preparation that looks like a drug must have therapeutic properties. The aim of this scoping review is to present what is known about the effects of using selected dietary supplements in the context of chronic diseases, as well as the risks associated with their use. The literature shows that the taking of vitamin and mineral supplements by healthy people neither lowers their risk of cardiovascular diseases nor prevents the development of malignancies. Many scientific societies recognize that omega-3 fatty acids lower blood triglycerides, but whether taking them prevents heart disease is less clear-cut. Taking weight loss supplements is not an effective method of fighting obesity. Often, some supplements are increasingly sold illegally, which is then also associated with the higher risk that they may be adulterated with banned substances, thus making them even more dangerous and potentially life-threatening. Supplements are necessary in cases of nutrient deficiency; however, even though prescription is not required, their use should be recommended and monitored by a physician.
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Affiliation(s)
- Regina Ewa Wierzejska
- Department of Nutrition and Nutritional Value of Food, National Institute of Public Health NIH-National Research Institute, Chocimska St. 24, 00-791 Warsaw, Poland
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Cho SH. Relationship between urinary cotinine and serum vitamin A levels in Korean adults: the Korea National Health and Nutrition Examination Survey (KNHANES), 2016-2018. J Int Med Res 2021; 49:3000605211016742. [PMID: 34018841 PMCID: PMC8142536 DOI: 10.1177/03000605211016742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Objective To examine the relationship between urinary cotinine and serum vitamin A levels in Korean adults. Methods A total of 4445 adults (age ≥19 years) participating in the Korea National Health and Nutrition Examination Survey (KNHANES) from 2016 to 2018 were classified by sex and as smokers/electronic cigarette users (SE) or non-smokers (NS). Data were analyzed using complex sample general linear models. Results There were no differences in dietary intake of vitamin A, carotene, or retinol between the SE and NS groups. Adjusted mean serum vitamin A levels were higher in the SE group compared with those in the NS group (0.63 mg/L vs 0.60 mg/L among men; 0.55 mg/L vs 0.51 mg/L among women). Among all participants, urinary cotinine and serum vitamin A levels were positively correlated (R2 = 0.037). However, no correlation was observed in either the SE or NS groups individually. In a model adjusted for age, body mass index, sex, frequency of binge drinking, and dyslipidemia, a stronger correlation was observed (R2 = 0.244). Conclusion In Korean adults, urinary cotinine levels were positively associated with serum vitamin A levels. Mean serum vitamin A levels were significantly higher in the SE group compared with the NS group.
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Affiliation(s)
- Soo Hyun Cho
- Department of Family Medicine, College of Medicine, Chung-Ang University Hospital, Seoul, Republic of Korea
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Features of the Metabolic Profile of Saliva in Lung Cancer and COPD: The Effect of Smoking Status. Metabolites 2021; 11:metabo11050289. [PMID: 33946448 PMCID: PMC8147157 DOI: 10.3390/metabo11050289] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 04/27/2021] [Indexed: 01/26/2023] Open
Abstract
The aim of the study was to compare the metabolic characteristics of the salivary composition in lung cancer, chronic obstructive pulmonary disease (COPD) and their combination, depending on the smoking history. The study group included 392 patients with lung cancer of various histological types. The division into subgroups was carried out in accordance with the severity of COPD and smoking experience. Salivary biochemical composition was determined according to 34 indicators. For data processing, the principal component method was used. Different groups of biochemical saliva markers are informative when separately accounting for the smoking factor and the presence of COPD in lung cancer. For smoking, antioxidant enzymes and electrolyte components of saliva are informative; for COPD metabolic enzymes, lipid peroxidation products, sialic acids and electrolyte components are informative. While taking into account the smoking factor and the presence of COPD, biochemical markers corresponding to the presence/absence and severity of COPD are the priority. Changes occurring in the background of smoking are of a secondary nature, manifesting as much as possible with a smoking history of more than 50 pack-years. Thus, the metabolic changes that occur in lung cancer in combination with COPD, depending on the smoking factor, can be estimated using saliva.
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Wieland LS, Moffet I, Shade S, Emadi A, Knott C, Gorman EF, D'Adamo C. Risks and benefits of antioxidant dietary supplement use during cancer treatment: protocol for a scoping review. BMJ Open 2021; 11:e047200. [PMID: 33849858 PMCID: PMC8051392 DOI: 10.1136/bmjopen-2020-047200] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 02/15/2021] [Accepted: 03/24/2021] [Indexed: 01/08/2023] Open
Abstract
INTRODUCTION Antioxidant dietary supplements are used by many patients with cancer to reduce the side effects of chemotherapy and improve prognosis. While some research indicates oral antioxidant supplementation reduces side effects and improves patient survival, other studies suggest the use of antioxidant dietary supplements may interfere with chemotherapy and reduce its curative effects. There is a need to clarify the evidence base on the impact of dietary antioxidant supplementation during chemotherapy on both side effect and treatment efficacy outcomes. We will use a scoping review approach to identify what systematic review evidence exists regarding beneficial and harmful effects of dietary antioxidant supplements when used during cancer treatment. METHODS AND ANALYSIS We will use Arksey & O'Malley and Joanna Briggs Institute methods for scoping reviews. We will systematically search PubMed, Embase, CINAHL, Scopus, Dissertations & Theses Global and the Cochrane Library from inception to October 2020. Systematic reviews of randomised controlled trials of oral dietary antioxidant supplements used by participants receiving curative chemotherapy, radiotherapy or other biological therapy for cancer will be eligible. Two reviewers will screen citations and full texts for inclusion and chart data on research questions from included reviews. Two reviewers will assess the overall confidence in systematic review results using A Measurement Tool to Assess Systematic Reviews-2 (AMSTAR-2), and summarised evidence will focus on reviews rated at high or moderate overall confidence. Tables will be used to map existing evidence and identify evidence gaps for safety and effectiveness outcomes. ETHICS AND DISSEMINATION This scoping review does not require ethical approval as it is a secondary assessment of available literature. The results will be presented at conferences and submitted for publication in a peer-reviewed journal. We will also disseminate results to community and clinical stakeholders and involve them in developing subsequent research to address critical existing gaps in the evidence as identified by the scoping review.
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Affiliation(s)
- L Susan Wieland
- Center for Integrative Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Ilana Moffet
- University of Michigan College of Literature, Science, and the Arts, Ann Arbor, Michigan, USA
| | - Sydney Shade
- Geisinger Commonwealth School of Medicine, Scranton, Pennsylvania, USA
| | - Ashkan Emadi
- School of Medicine, University of Maryland Baltimore, Baltimore, Maryland, USA
- University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, Maryland, USA
| | - Cheryl Knott
- Department of Behavioral and Community Health, School of Public Health, University of Maryland, College Park, Maryland, USA
- Office of Community Outreach and Engagement, University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, Maryland, USA
| | - Emily F Gorman
- Health Sciences and Human Services Library, University of Maryland Baltimore, Baltimore, Maryland, USA
| | - Christopher D'Adamo
- Center for Integrative Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA
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