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Kumar S, Senapati S, Bhattacharya N, Bhattacharya A, Maurya SK, Husain H, Bhatti JS, Pandey AK. Mechanism and recent updates on insulin-related disorders. World J Clin Cases 2023; 11:5840-5856. [PMID: 37727490 PMCID: PMC10506040 DOI: 10.12998/wjcc.v11.i25.5840] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 07/06/2023] [Accepted: 08/07/2023] [Indexed: 09/01/2023] Open
Abstract
Insulin, a small protein with 51 amino acids synthesized by pancreatic β-cells, is crucial to sustain glucose homeostasis at biochemical and molecular levels. Numerous metabolic dysfunctions are related to insulin-mediated altered glucose homeostasis. One of the significant pathophysiological conditions linked to the insulin associated disorder is diabetes mellitus (DM) (type 1, type 2, and gestational). Insulin resistance (IR) is one of the major underlying causes of metabolic disorders despite its association with several physiological conditions. Metabolic syndrome (MS) is another pathophysiological condition that is associated with IR, hypertension, and obesity. Further, several other pathophysiological disorders/diseases are associated with the insulin malfunctioning, which include polycystic ovary syndrome, neuronal disorders, and cancer. Insulinomas are an uncommon type of pancreatic β-cell-derived neuroendocrine tumor that makes up 2% of all pancreatic neoplasms. Literature revealed that different biochemical events, molecular signaling pathways, microRNAs, and microbiota act as connecting links between insulin disorder and associated pathophysiology such as DM, insuloma, neurological disorder, MS, and cancer. In this review, we focus on the insulin-related disorders and the underlying mechanisms associated with the pathophysiology.
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Affiliation(s)
- Shashank Kumar
- Department of Biochemistry, Central University of Punjab, Bathinda 151401, Punjab, India
| | - Sabyasachi Senapati
- Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda 151401, Punjab, India
| | - Neetu Bhattacharya
- Department of Zoology, Dyal Singh College, University of Delhi, New Delhi 110003, India
| | - Amit Bhattacharya
- Department of Zoology, Ramjas College, University of Delhi, New Delhi 110007, India
| | | | - Hadiya Husain
- Department of Zoology, University of Lucknow, Lucknow 226007, India
| | - Jasvinder Singh Bhatti
- Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda 151401, Punjab, India
| | - Abhay Kumar Pandey
- Department of Biochemistry, University of Allahabad, Allahabad (Prayagraj) 211002, India
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Steck SE, Su LJ, Antwi SO, Morris BB, Crawford B, Adams SA, Hebert JR, Fontham ETH, Bensen JT, Mohler JL, Arab L. Recreational and occupational physical activity in relation to prostate cancer aggressiveness: the North Carolina-Louisiana Prostate Cancer Project (PCaP). Cancer Causes Control 2022; 33:875-887. [PMID: 35320830 PMCID: PMC10964168 DOI: 10.1007/s10552-022-01572-z] [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: 10/06/2021] [Accepted: 03/07/2022] [Indexed: 11/29/2022]
Abstract
PURPOSE To examine associations between recreational and occupational physical activity and prostate cancer aggressiveness in a population-based, case-only, incident prostate cancer study. METHODS Data were analyzed from the cross-sectional North Carolina-Louisiana Prostate Cancer Project of African-American (n = 1,023) and European-American (n = 1,079) men newly diagnosed with prostate cancer (CaP). High-aggressive CaP was defined as Gleason sum ≥ 8, or prostate-specific antigen > 20 ng/ml, or Gleason sum ≥ 7 and clinical stage T3-T4. Metabolic equivalent tasks (MET) were estimated from self-reported recreational physical activity in the year prior to diagnosis assessed retrospectively via a validated questionnaire and from occupational physical activity based on job titles. Associations between physical activity variables and high-aggressive prostate cancer were estimated using logistic regression to calculate odds ratios (ORs) and 95% confidence intervals (CIs), adjusting for multiple confounders. RESULTS There was suggestive evidence that walking for 75-150 min/week for exercise is associated with lower odds of high-aggressive prostate cancer compared to no walking (OR = 0.69, 95% CI 0.47-1.01). Physical activity at the current job was associated with 24% lower odds of high-aggressive prostate cancer (highest vs. lowest tertile OR = 0.76, 95% CI 0.56-1.04). However, total MET-h/week of recreational physical activity and accumulation of high-level physical activity at the longest-held job were not associated with high-aggressive prostate cancer. Results did not vary by race. CONCLUSIONS The odds of high-aggressive prostate cancer were lower among men who walk for exercise and those engaged in occupations with high activity levels.
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Affiliation(s)
- Susan E Steck
- Epidemiology and Biostatistics, and Cancer Prevention and Control Program, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA.
- Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, 915 Greene Street, Room 456, Columbia, SC, 29208, USA.
| | - L Joseph Su
- Department of Epidemiology, Fay W. Boozman College of Public Health, Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Samuel O Antwi
- Department of Quantitative Health Sciences, Mayo Clinic, Jacksonville, FL, USA
| | - Bonny B Morris
- Wake Forest Baptist Medical Comprehensive Cancer Center, Winston-Salem, NC, USA
| | - Brittany Crawford
- Epidemiology and Biostatistics, and Cancer Prevention and Control Program, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
| | - Swann Arp Adams
- Epidemiology and Biostatistics, and Cancer Prevention and Control Program, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
- College of Nursing, University of South Carolina, Columbia, SC, USA
| | - James R Hebert
- Epidemiology and Biostatistics, and Cancer Prevention and Control Program, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
| | - Elizabeth T H Fontham
- School of Public Health, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Jeannette T Bensen
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - James L Mohler
- Department of Urology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Lenore Arab
- David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
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Running wheel access fails to resolve impaired sustainable health in mice feeding a high fat sucrose diet. Aging (Albany NY) 2020; 11:1564-1579. [PMID: 30860981 PMCID: PMC6428087 DOI: 10.18632/aging.101857] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 03/06/2019] [Indexed: 12/16/2022]
Abstract
Diet and physical activity are thought to affect sustainable metabolic health and survival. To improve understanding, we studied survival of mice feeding a low-fat (LF) or high-saturated fat/high sugar (HFS) diet, each with or without free running wheel (RW) access. Additionally several endocrine and metabolic health indices were assessed at 6, 12, 18 and 24 months of age. As expected, HFS feeding left-shifted survival curve of mice compared to LF feeding, and this was associated with increased energy intake and increased (visceral/total) adiposity, liver triglycerides, and increased plasma cholesterol, corticosterone, HOMA-IR, and lowered adiponectin levels. Several of these health parameters improved (transiently) by RW access in HFS and LF fed mice (i.e., HOMA-IR, plasma corticosterone), others however deteriorated (transiently) by RW access only in HFS-fed mice (i.e., body adiposity, plasma resistin, and free cholesterol levels). Apart from these multiple and sometimes diverging health effects of RW access, RW access did not affect survival curves. Important to note, voluntary RW activity declined with age, but this effect was most pronounced in the HFS fed mice. These results thus challenge the hypothesis that voluntary wheel running can counteract HFS-induced deterioration of survival and metabolic health.
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Lifetime recreational physical activity and the risk of prostate cancer. Cancer Causes Control 2019; 30:617-625. [PMID: 30963392 DOI: 10.1007/s10552-019-01138-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 02/06/2019] [Indexed: 10/27/2022]
Abstract
PURPOSE Research on the association between physical activity and the risk of prostate cancer is inconsistent. The aim of this study was to investigate whether the timing, intensity, and type of recreational physical activity influence prostate cancer risk. METHODS A population-based case-control study was conducted in Western Australia in 2001-2002. Data were collected on lifetime recreational physical activity from a self-reported questionnaire. The estimated effects of recreational physical activity on prostate cancer risk were analyzed using logistic regression, adjusting for demographic and lifestyle factors. This analysis included 569 incident cases and 443 controls. RESULTS There was a significant, inverse dose-response relationship between vigorous-intensity recreational physical activity between the ages 19 and 34 years and the risk of prostate cancer (pTrend = 0.013). Participants in the most active quartile of vigorous-intensity physical activity in this age period had a 33% lower risk of prostate cancer than participants in the least active quartile (Adjusted Odds Ratio = 0.67, 95% confidence interval = 0.45-1.01). Moderate-intensity recreational physical activity was not associated with the risk of prostate cancer. Recreational physical activity performed over the lifetime showed no association with prostate cancer risk. Weight training performed from early adulthood onwards showed a non-significant but consistent inverse association with prostate cancer risk. There was no strong evidence that physical activity was differentially associated with the risks of low-grade and medium-to-high grade prostate cancers. CONCLUSIONS A high level of vigorous recreational physical activity in early adulthood may be required to reduce the risk of prostate cancer.
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Gómez-Martín A, Martinez-Gonzalez LJ, Puche-Sanz I, Cozar JM, Lorente JA, Hernández AF, Alvarez-Cubero MJ. GSTM1 gene expression and copy number variation in prostate cancer patients-Effect of chemical exposures and physical activity. Urol Oncol 2018; 37:290.e9-290.e15. [PMID: 30595465 DOI: 10.1016/j.urolonc.2018.12.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 12/12/2018] [Accepted: 12/16/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND Many etiological factors have been related to prostate cancer (CaP) development, progression, and survival, such as age, population origin, geographic area, occupational exposures, and nutrition and lifestyle factors. However, physical activity affords health benefits to cancer patients, including those with CaP. Glutathione S-Transferases enzymes have been linked to CaP because of their role in the detoxification of a wide variety of potential carcinogens, steroid hormones and xenobiotics. Among the different glutathione S-transferases isoforms, null genotype for GSTM1 has been associated with an increased risk of CaP, although data are controversial. As the relationship between copy number variation and gene expression of GSTM1 in CaP remains unexplored, this study analyzed GSTM1 gene expression and/or dosage effect on CaP risk and aggressiveness. The potential protective role of physical activity was also explored. METHODS Three hundred and seventeen patients (159 non-CaP and 158 CaP) were recruited from the Service of Urology (Hospital Virgen de las Nieves, Granada, Spain) over the period 2012 to 2014 and were followed-up until January 2018 to ensure a correct classification of control and patients. Individuals were classified in each group based on histological analysis of tissue biopsy, along with data on PSA level, Gleason score and T stage in patients with biopsies positive for CaP. Individuals with a negative biopsy were considered as controls. All controls underwent a systematic 20-core ultrasound guided biopsy in order to limit the false negative rate. Genomic DNA was extracted from peripheral blood to determine the exact copy numbers of GSTM1, and RNA was extracted from prostate tissue samples to determine GSTM1 gene expression. Both analyses were performed using the qPCR method. A questionnaire was administered to all patients to assess environmental exposures, lifestyle, and physical activity. The association of GSTM1 copy number variation and expression with the rest of variables was assessed by chi-square test and the Mann-Whitney test. Multiple logistic regression was used to assess which factors were associated with the risk of CaP. RESULTS The presence of 1 or 2 copies of the GSTM1 gene was not less prevalent in CaP compared to non-CaP patients; however, a significant decreased GSTM1 gene expression was observed in CaP tissue relative to non-CaP tissue (P = 0.003). CaP patients with environmental exposure to dust and smoke, and smoking habit had a significantly decreased GSTM1 gene expression (and near-significantly decreased for living in urban areas) as compared to non-CaP patients with the same exposures. In addition, physical activity was significantly associated with a lower risk of CaP (P = 0.006) and with increased GSTM1 gene expression (P = 0.002). CONCLUSIONS A reduced GSTM1 gene expression in prostate tissue was observed in CaP patients with some environmental chemical exposures. Intriguingly, physical activity might play a protective role against CaP development, possibly as a result of increasing GSTM1 gene expression in prostate tissue. However, this observation warrants further confirmation.
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Affiliation(s)
- Antonio Gómez-Martín
- GENYO (Pfizer-University of Granada-Andalusian Government Centre for Genomics and Oncological Research), Granada, Spain
| | - Luis J Martinez-Gonzalez
- GENYO (Pfizer-University of Granada-Andalusian Government Centre for Genomics and Oncological Research), Granada, Spain.
| | - Ignacio Puche-Sanz
- Service of Urology, University Hospital Virgen de las Nieves, Granada, Spain
| | - Jose M Cozar
- Service of Urology, University Hospital Virgen de las Nieves, Granada, Spain
| | - Jose A Lorente
- GENYO (Pfizer-University of Granada-Andalusian Government Centre for Genomics and Oncological Research), Granada, Spain; University of Granada, Legal Medicine and Toxicology Department, Faculty of Medicine, PTS, Granada, Spain
| | - Antonio F Hernández
- University of Granada, Legal Medicine and Toxicology Department, Faculty of Medicine, PTS, Granada, Spain
| | - Maria J Alvarez-Cubero
- GENYO (Pfizer-University of Granada-Andalusian Government Centre for Genomics and Oncological Research), Granada, Spain; University of Granada, Department of Biochemistry and Molecular Biology III, Faculty of Medicine, PTS, Granada, Spain
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Wang P, Zhu Y, Xi S, Li S, Zhang Y. Association between MnSOD Val16Ala Polymorphism and Cancer Risk: Evidence from 33,098 Cases and 37,831 Controls. DISEASE MARKERS 2018; 2018:3061974. [PMID: 30245752 PMCID: PMC6139213 DOI: 10.1155/2018/3061974] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 07/25/2018] [Indexed: 12/31/2022]
Abstract
Manganese superoxide dismutase (MnSOD) plays a critical role in the defense against reactive oxygen species. The association between MnSOD Val16Ala polymorphism and cancer risk has been widely studied, but the results are contradictory. To obtain more precision on the association, we performed the current meta-analysis with 33,098 cases and 37,831 controls from 88 studies retrieved from PubMed, Embase, Chinese National Knowledge Infrastructure (CNKI), and Wanfang databases. Pooled odds ratios (ORs) and 95% confidence intervals (CIs) were used to assess the strength of association. We found that the polymorphism was associated with an increased overall cancer risk (homozygous: OR = 1.09, 95% CI = 1.00-1.19; heterozygous: OR = 1.07, 95% CI = 1.02-1.12; dominant: OR = 1.08, 95% CI = 1.02-1.14; and allele comparison: OR = 1.06, 95% CI = 1.02-1.11). Stratification analysis further showed an increased risk for prostate cancer, Asians, Caucasians, population-based studies, hospital-based studies, low quality and high quality studies. However, the increased risk for MnSOD Val16Ala polymorphism among Asians needs further validation based on the false-positive report probability (FPRP) test. To summarize, this meta-analysis suggests that the MnSOD Val16Ala polymorphism is associated with significantly increased cancer risk, which needs further validation in single large studies.
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Affiliation(s)
- Ping Wang
- Department of Biochemistry and Molecular Biology, Medical College, Henan University of Science and Technology, Luoyang, Henan 471023, China
| | - Yanfeng Zhu
- School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, Henan 471023, China
| | - Shoumin Xi
- Department of Biochemistry and Molecular Biology, Medical College, Henan University of Science and Technology, Luoyang, Henan 471023, China
| | - Sanqiang Li
- Department of Biochemistry and Molecular Biology, Medical College, Henan University of Science and Technology, Luoyang, Henan 471023, China
| | - Yanle Zhang
- Department of Biochemistry and Molecular Biology, Medical College, Henan University of Science and Technology, Luoyang, Henan 471023, China
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Di Sebastiano KM, Pinthus JH, Duivenvoorden WCM, Mourtzakis M. Glucose impairments and insulin resistance in prostate cancer: the role of obesity, nutrition and exercise. Obes Rev 2018; 19:1008-1016. [PMID: 29573216 DOI: 10.1111/obr.12674] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 01/04/2018] [Accepted: 01/15/2018] [Indexed: 01/21/2023]
Abstract
BACKGROUND Hyperinsulinemia, obesity and related metabolic diseases are associated with prostate cancer development. Prostate cancer patients undergoing androgen deprivation therapy (ADT) are at increased risk for metabolic syndrome, cardiovascular disease and diabetes, while pre-existing metabolic conditions may be exacerbated. PURPOSE An integrative approach is used to describe the interactions between insulin, glucose metabolism, obesity and prostate cancer. The potential role of nutrition and exercise will also be examined. FINDINGS Hyperinsulinemia is associated with prostate cancer development, progression and aggressiveness. Prostate cancer patients who undergo ADT are at risk of diabetes in survivorship. It is unclear whether this is a direct result of treatment or related to pre-existing metabolic features (e.g. hyperinsulinemia and obesity). Obesity and metabolic syndrome are also associated with prostate cancer development and poorer outcomes for cancer survivors, which may be driven by hyperinsulinemia, pro-inflammation, hyperleptinemia and/or hypoadiponectinemia. CONCLUSIONS Independently evaluating changes in glucose metabolism near the time of prostate cancer diagnosis and during long-term ADT treatment is important to distinguish their unique contributions to the development of metabolic disturbances. Integrative approaches, including metabolic, clinical and body composition measures, are needed to understand the role of adiposity and insulin resistance in prostate cancer and to develop effective nutrition and exercise interventions to improve secondary diseases in survivorship.
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Affiliation(s)
- K M Di Sebastiano
- Department of Kinesiology, University of Waterloo, Waterloo, ON, Canada
| | - J H Pinthus
- Department of Surgery, Division of Urology, McMaster University, Hamilton, ON, Canada
| | - W C M Duivenvoorden
- Department of Surgery, Division of Urology, McMaster University, Hamilton, ON, Canada
| | - M Mourtzakis
- Department of Kinesiology, University of Waterloo, Waterloo, ON, Canada
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A Review on the Role of Physical Activity in Cancer Prevention: Middle East Reports. INTERNATIONAL JOURNAL OF CANCER MANAGEMENT 2017. [DOI: 10.5812/ijcm.8992] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Moyad MA. Preventing aggressive prostate cancer with proven cardiovascular disease preventive methods. Asian J Androl 2016; 17:874-7; discussion 876. [PMID: 26112486 PMCID: PMC4814969 DOI: 10.4103/1008-682x.156854] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Cardiovascular disease (CVD) has been the number one cause of death in the U.S. for 114 of the last 115 years. Risk factors for prostate cancer have primarily mirrored risk proven risk factors for CVD, especially aggressive disease. Obesity, dyslipidemia, glucose intolerance, metabolic syndrome, unhealthy dietary habits or caloric excess, lack of physical activity, and inflammation are just some of these shared risk factors. The evidence also suggests proven CVD preventive measures are identical to prostate cancer preventive measures, especially in regard to aggressive disease. Thus, apart from lifestyle measures that can encourage optimal heart and prostate health there are potentially several dietary supplements that need to be avoided in healthy men because they may also increase the risk of prostate cancer. However, there are also several low-cost, generic, safe in the appropriate individuals, and naturally derived agents that could reduce prostate cancer risk, and these can be discussed and remembered utilizing the acronym S.A.M. (statins, aspirin, and/or metformin).
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Affiliation(s)
- Mark A Moyad
- Department of Urology, University of Michigan Medical Center, 1500 East Medical Center Drive, Ann Arbor, MI 48109, USA
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Moyad MA, Vogelzang NJ. Heart healthy equals prostate healthy and statins, aspirin, and/or metformin (S.A.M.) are the ideal recommendations for prostate cancer prevention. Asian J Androl 2016; 17:783-91. [PMID: 25657084 PMCID: PMC4577591 DOI: 10.4103/1008-682x.148070] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Cardiovascular disease (CVD) has been the number one cause of death in the U.S. for 114 of the last 115 years. Lifestyle factors that promote CVD also appear to increase prostate cancer risk and those that reduce CVD risk also appear to reduce the risk of prostate cancer. The largest randomized trials utilizing dietary supplements or pharmacologic agents for prostate cancer prevention (Selenium and Vitamin E Cancer Prevention Trial [SELECT]) have also shed light on the problems and future solutions in this area. Dietary supplements that have not been found to be CVD protective, such as selenium and Vitamin E have not been found to be prostate protective. In addition, over exposure to specific anti-oxidants in nutritionally replete populations may be encouraging cancer growth. Future trials of dietary supplements to prevent prostate cancer could be problematic because by the time a definitive trial is initiated the participants will no longer be “deficient” in the nutrient being tested, which arguably occurred in the SELECT trial. It is also interesting that statins, aspirin, and/or metformin (S.A.M.) are 3 generic, low-cost, heart healthy agents derived from natural sources with separate mechanism of actions, which all appear to have the best benefit to risk ratio compared to any other agent available for prostate cancer prevention, especially aggressive disease, or as an ancillary agent (s) to conventional cancer treatment. It is time to focus on the forest over the trees and recommend proven CVD protective measures for men concerned about their risk of prostate cancer.
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Affiliation(s)
- Mark A Moyad
- Department of Urology, University of Michigan Medical Center, Ann Arbor, Michigan, USA
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Schleper A, Sullivan DK, Thrasher JB, Holzbeierlein JM, Klemp J, Befort C, Hamilton-Reeves JM. Weight Management to Reduce Prostate Cancer Risk: A Survey of Men's Needs and Interests. ACTA ACUST UNITED AC 2016; 5:43-52. [PMID: 27547287 PMCID: PMC4991822 DOI: 10.5539/cco.v5n1p43] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Obese men have a higher rate of prostate cancer-related death than non-obese men, and obesity increases the risk of prostate cancer progression and biochemical recurrence. The purpose of this study was to assess needs and interests of men for a technology-driven weight loss intervention to reduce prostate cancer risk. We distributed a survey collecting demographic characteristics, health history, exercise and eating habits (and perception of those habits), current and prior attempts of health behavior change, and technology use. Survey answers were summarized by count and percent of total respondents. Completed surveys (N = 109) described men with a family history of prostate cancer (25%), a history of elevated prostate specific antigen (26%), and prostate cancer survivors (22%). We compared body mass index (BMI) to perception of weight; overweight and obese men perceived their weight as more normal than their BMI category suggests. Most men reported their diet needed minor improvement (74%), and 65% of men reported they are either currently trying to lose weight or interested in weight loss. Most respondents access the internet (92%), while text messaging (60%) and smartphone application use (40%) are less frequent, especially in men over 60. Our results revealed a need and willingness for lifestyle modification and suggest a need for evidence-based weight loss strategies and for addressing the misperception of weight status. A male-tailored intervention that implements technology could improve energy balance, hold men accountable to healthy behavior change, and promote dietary patterns in order to reduce prostate cancer risk.
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Affiliation(s)
- Amy Schleper
- Department of Dietetics & Nutrition, School of Health Professions, University of Kansas Medical Center, 3901 Rainbow Boulevard, Mailstop 4013, Kansas City, Kansas 66160, USA
| | - Debra K Sullivan
- Department of Dietetics & Nutrition, School of Health Professions, University of Kansas Medical Center, 3901 Rainbow Boulevard, Mailstop 4013, Kansas City, Kansas 66160, USA
| | - J Brantley Thrasher
- Department of Urology Surgery, University of Kansas Medical Center, 3901 Rainbow Boulevard, Mail Stop 3016, Kansas City, Kansas 66160, USA
| | - Jeffrey M Holzbeierlein
- Department of Urology Surgery, University of Kansas Medical Center, 3901 Rainbow Boulevard, Mail Stop 3016, Kansas City, Kansas 66160, USA
| | - Jennifer Klemp
- Breast Cancer Prevention Center, University of Kansas Medical Center, 2330 Shawnee Mission Parkway, Mail Stop 3015, Westwood, Kansas 66205, USA
| | - Christie Befort
- Department of Preventative Medicine and Public Health, University of Kansas Medical Center, 3901 Rainbow Boulevard, Mail Stop 1008, Kansas City, Kansas 66160, USA
| | - Jill M Hamilton-Reeves
- Department of Dietetics & Nutrition, School of Health Professions, University of Kansas Medical Center, 3901 Rainbow Boulevard, Mailstop 4013, Kansas City, Kansas 66160, USA ; Department of Urology Surgery, University of Kansas Medical Center, 3901 Rainbow Boulevard, Mail Stop 3016, Kansas City, Kansas 66160, USA
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Xu X, Chen X, Hu H, Dailey AB, Odedina FT. WITHDRAWN: Current opinion in the role of testosterone in the development of prostate cancer: A dynamic model. Med Hypotheses 2016. [DOI: 10.1016/j.mehy.2015.12.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Heart Healthy = Prostate Healthy and S.A.M. are the Ideal “Natural” Recommendations for Prostate Cancer. Prostate Cancer 2016. [DOI: 10.1016/b978-0-12-800077-9.00020-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Xu X, Chen X, Hu H, Dailey AB, Taylor BD. Current opinion on the role of testosterone in the development of prostate cancer: a dynamic model. BMC Cancer 2015; 15:806. [PMID: 26502956 PMCID: PMC4623905 DOI: 10.1186/s12885-015-1833-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 10/19/2015] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Since the landmark study conducted by Huggins and Hodges in 1941, a failure to distinguish between the role of testosterone in prostate cancer development and progression has led to the prevailing opinion that high levels of testosterone increase the risk of prostate cancer. To date, this claim remains unproven. PRESENTATION OF THE HYPOTHESIS We present a novel dynamic mode of the relationship between testosterone and prostate cancer by hypothesizing that the magnitude of age-related declines in testosterone, rather than a static level of testosterone measured at a single point, may trigger and promote the development of prostate cancer. TESTING THE HYPOTHESIS Although not easily testable currently, prospective cohort studies with population-representative samples and repeated measurements of testosterone or retrospective cohorts with stored blood samples from different ages are warranted in future to test the hypothesis. IMPLICATIONS OF THE HYPOTHESIS Our dynamic model can satisfactorily explain the observed age patterns of prostate cancer incidence, the apparent conflicts in epidemiological findings on testosterone and risk of prostate cancer, racial disparities in prostate cancer incidence, risk factors associated with prostate cancer, and the role of testosterone in prostate cancer progression. Our dynamic model may also have implications for testosterone replacement therapy.
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Affiliation(s)
- Xiaohui Xu
- Department of Epidemiology & Biostatistics, School of Public Health, Texas A&M Health Science Center, 205A SRPH Administration Building | MS 1266, 212 Adriance Lab Road, College Station, TX, 77843-1266, USA.
| | - Xinguang Chen
- Department of Epidemiology, College of Public Health and Health Professions and College of Medicine, University of Florida, Gainesville, FL, USA.
| | - Hui Hu
- Department of Epidemiology, College of Public Health and Health Professions and College of Medicine, University of Florida, Gainesville, FL, USA.
| | - Amy B Dailey
- Health Sciences Department, Gettysburg College, Gettysburg, PA, USA.
| | - Brandie D Taylor
- Department of Epidemiology & Biostatistics, School of Public Health, Texas A&M Health Science Center, 205A SRPH Administration Building | MS 1266, 212 Adriance Lab Road, College Station, TX, 77843-1266, USA.
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Racial/ethnic differences in lifestyle-related factors and prostate cancer risk: the Multiethnic Cohort Study. Cancer Causes Control 2015; 26:1507-15. [PMID: 26243447 DOI: 10.1007/s10552-015-0644-y] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 07/22/2015] [Indexed: 01/30/2023]
Abstract
PURPOSE Older age, African ancestry, and family history of prostate cancer are well-established risk factors for prostate cancer, and all are non-modifiable. Various lifestyle factors have been examined in relation to prostate cancer risk, including diet, obesity, and physical activity; however, none of them has been consistently related to risk. In the Multiethnic Cohort Study, we investigated whether lifestyle-related factors are associated with prostate cancer risk and whether such factors explain the racial/ethnic differences in risk. METHODS During a mean follow-up of 13.9 years, 7,115 incident cases were identified among 75,216 white, African-American, Native Hawaiian, Japanese American, and Latino men. Cox proportional hazards models were used to calculate relative risks (RRs) and 95 % confidence intervals (95 % CIs) for prostate cancer. RESULTS Among selected lifestyle-related factors including body mass index, height, education, physical activity, and intakes of alcohol, calcium, legumes, lycopene, and selenium, only smoking (RR for current (≥20 cigarettes/day) vs. never smoking = 0.72; 95 % CI 0.63-0.83) and history of diabetes (RR for yes vs. no = 0.78; 95 % CI 0.72-0.85) were significantly associated with prostate cancer risk. Compared to whites, the risk of incident prostate cancer was twofold higher in African-Americans and 16 % higher in Latinos. Additional adjustment for a history of PSA testing did not change the results. CONCLUSIONS The findings suggest that racial/ethnic differences in prostate cancer risk are not explained by the lifestyle factors examined and that underlying genetic factors may be involved.
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Hrafnkelsdóttir SM, Torfadóttir JE, Aspelund T, Magnusson KT, Tryggvadóttir L, Gudnason V, Mucci LA, Stampfer M, Valdimarsdóttir UA. Physical Activity from Early Adulthood and Risk of Prostate Cancer: A 24-Year Follow-Up Study among Icelandic Men. Cancer Prev Res (Phila) 2015; 8:905-11. [DOI: 10.1158/1940-6207.capr-15-0035] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 06/22/2015] [Indexed: 11/16/2022]
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17
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Bae JM. Human papillomavirus 16 infection as a potential risk factor for prostate cancer: an adaptive meta-analysis. Epidemiol Health 2015; 37:e2015005. [PMID: 25687950 PMCID: PMC4371392 DOI: 10.4178/epih/e2015005] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 02/05/2015] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVES Although an expert review published in 2013 concluded that an association between human papillomavirus (HPV) infection and prostate cancer (PCa) risk had not yet been firmly established, a 2011 systematic review of 14 articles revealed an increased prevalence of HPV-16 DNA in PCa tissues. Another meta-analysis of the related articles is needed to evaluate the potential link between HPV infection and PCa risk. METHODS A snowballing search strategy was applied to the previously cited articles in the above-mentioned expert review and systematic review. Additional articles selected for this meta-analysis should fulfill all following inclusion criteria: (a) evaluation of detected HPV-16 DNA in tissue samples and the PCa risk and (b) report of the HPV-16 prevalence in both cancer and control tissues. Estimated summary odds ratios (sOR) with 95% confidence intervals (CI) were calculated using fixed effect or random-effect models. RESULTS Hand searching identified 16 new articles. The sOR of the total 30 articles indicated a significant HPV-16 infection-related increase in the PCa risk (sOR, 1.851; 95% CI, 1.353 to 2.532, I(2)=37.82%). CONCLUSIONS These facts provide additional supportive evidence for a causal role of HPV-16 infection in prostate carcinogenesis. As the PCa incidence rates have increased rapidly in Asian countries, including Korea, during the last several decades, further studies of HPV-related PCa carcinogenesis may be necessary.
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Affiliation(s)
- Jong-Myon Bae
- Department of Preventive Medicine, Jeju National University School of Medicine, Jeju, Korea
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18
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Physical activity and body mass index as predictors of prostate cancer risk. World J Urol 2015; 33:1495-502. [DOI: 10.1007/s00345-014-1464-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Accepted: 12/13/2014] [Indexed: 10/24/2022] Open
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19
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Dong HV, Lee AH, Nga NH, Quang N, Chuyen VL, Binns CW. Epidemiology and Prevention of Prostate Cancer in Vietnam. Asian Pac J Cancer Prev 2014; 15:9747-51. [DOI: 10.7314/apjcp.2014.15.22.9747] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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20
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Diggett B, Holzbeierlein J, Klemp J, Glennon C, Hamilton-Reeves JM. Patient-centered perspectives on the access to educational opportunities specific to lifestyle modification in men at risk for primary or secondary prostate cancer. JOURNAL OF CANCER EDUCATION : THE OFFICIAL JOURNAL OF THE AMERICAN ASSOCIATION FOR CANCER EDUCATION 2014; 29:252-257. [PMID: 24214853 DOI: 10.1007/s13187-013-0583-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Educating men at risk for primary or secondary prostate cancer on lifestyle modification may help prevent the development of the disease, reduce the risk of recurrence in those treated for cancer, and slow the progression of active disease. To date, substantial literature on male patient attitudes towards risk modification does not exist. In this project, we evaluate the attitudes and educational needs of men at high-risk for primary or secondary prostate cancer to assess the need for a dedicated clinic focused on education and prevention. Two clinic nurses administered surveys to 76 male patients seen at the University Kansas Cancer Center (KUCC) and Urology clinics. Survey responses showed the patients' perspectives and desire for more support and education regarding late effects of treatment, management of risk, and lifestyle modification. Findings from this survey inspired the establishment of the Burns & McDonnell High-Risk Prostate Cancer Prevention Program at KUCC.
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Affiliation(s)
- Bethany Diggett
- Department of Dietetics and Nutrition, University of Kansas Medical Center, School of Health Professions, 3901 Rainbow Boulevard, Kansas City, KS, 66160, USA,
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21
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Bresciani G, Cruz IBM, de Paz JA, Cuevas MJ, González-Gallego J. The MnSOD Ala16Val SNP: relevance to human diseases and interaction with environmental factors. Free Radic Res 2014; 47:781-92. [PMID: 23952573 DOI: 10.3109/10715762.2013.836275] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The relevance of reactive oxygen species (ROS) production relies on the dual role shown by these molecules in aerobes. ROS are known to modulate several physiological phenomena, such as immune response and cell growth and differentiation; on the other hand, uncontrolled ROS production may cause important tissue and cell damage, such as deoxyribonucleic acid oxidation, lipid peroxidation, and protein carbonylation. The manganese superoxide dismutase (MnSOD) antioxidant enzyme affords the major defense against ROS within the mitochondria, which is considered the main ROS production locus in aerobes. Structural and/or functional single nucleotide polymorphisms (SNP) within the MnSOD encoding gene may be relevant for ROS detoxification. Specifically, the MnSOD Ala16Val SNP has been shown to alter the enzyme localization and mitochondrial transportation, affecting the redox status balance. Oxidative stress may contribute to the development of type 2 diabetes, cardiovascular diseases, various inflammatory conditions, or cancer. The Ala16Val MnSOD SNP has been associated with these and other chronic diseases; however, inconsistent findings between studies have made difficult drawing definitive conclusions. Environmental factors, such as dietary antioxidant intake and exercise have been shown to affect ROS metabolism through antioxidant enzyme regulation and may contribute to explain inconsistencies in the literature. Nevertheless, whether environmental factors may be associated to the Ala16Val genotypes in human diseases still needs to be clarified.
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Affiliation(s)
- G Bresciani
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria (UFSM) , Brazil
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22
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Lakkur S, Goodman M, Bostick RM, Citronberg J, McClellan W, Flanders WD, Judd S, Stevens VL. Oxidative balance score and risk for incident prostate cancer in a prospective U.S. cohort study. Ann Epidemiol 2014; 24:475-478.e4. [PMID: 24731700 DOI: 10.1016/j.annepidem.2014.02.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 02/20/2014] [Accepted: 02/28/2014] [Indexed: 01/10/2023]
Abstract
PURPOSE Oxidative stress is defined as an imbalance between pro-oxidants and antioxidants. Previous research found that a single comprehensive oxidative balance score (OBS) that includes individual pro- and anti-oxidant exposures may be associated with various conditions (including prostate cancer) in the absence of associations with the individual factors. We investigated an OBS-incident prostate cancer association among 43,325 men in the Cancer Prevention Study II Nutrition Cohort. METHODS From 1999-2007, 3386 incident cases were identified. Twenty different components, used in two ways (unweighted or weighted based on literature reviews), were incorporated into the OBS, and the resulting scores were then expressed as three types of variables (continuous, quartiles, or six equal intervals). Multivariable-adjusted rate ratios were calculated using Cox proportional hazards models. RESULTS We hypothesized that the OBS would be inversely associated with prostate cancer risk; however, the rate ratios (95% confidence intervals) comparing the highest with the lowest OBS categories ranged from 1.17 (1.04-1.32) to 1.39 (0.90-2.15) for all cases, 1.14 (0.87-1.50) to 1.59 (0.57-4.40) for aggressive disease (American Joint Committee on Cancer stage III/IV or Gleason score 8-10), and 0.91 (0.62-1.35) to 1.02 (1.02-1.04) for nonaggressive disease. CONCLUSIONS Our findings are not consistent with the hypothesis that oxidative balance-related exposures collectively affect risk for prostate cancer.
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Affiliation(s)
- Sindhu Lakkur
- Department of Nutrition, Emory University, Atlanta, GA; Department of Biostatistics, The University of Alabama at Birmingham, Birmingham.
| | - Michael Goodman
- Department of Nutrition, Emory University, Atlanta, GA; Department of Epidemiology, Emory University, Atlanta, GA; Winship Cancer Institute, Emory University, Atlanta, GA
| | - Roberd M Bostick
- Department of Nutrition, Emory University, Atlanta, GA; Department of Epidemiology, Emory University, Atlanta, GA; Winship Cancer Institute, Emory University, Atlanta, GA
| | | | | | - William Dana Flanders
- Department of Epidemiology, Emory University, Atlanta, GA; Winship Cancer Institute, Emory University, Atlanta, GA
| | - Suzanne Judd
- Department of Biostatistics, The University of Alabama at Birmingham, Birmingham
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23
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Byers T. Physical activity and gastric cancer: so what? An epidemiologist's confession. Cancer Prev Res (Phila) 2013; 7:9-11. [PMID: 24346343 DOI: 10.1158/1940-6207.capr-13-0400] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Epidemiologists, like many scientists, tend to become specialized and focused on a particular disease, even though behavioral risk factors such as physical activity have effects across many diseases. This commentary is a personal reflection by an epidemiologist on the shortcomings of this disease-oriented approach to prevention.
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Affiliation(s)
- Tim Byers
- Colorado School of Public Health, 13001 E. 17th Place, B119, Building 500, Room W3122, Aurora, CO 80045.
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24
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Rebillard A, Lefeuvre-Orfila L, Gueritat J, Cillard J. Prostate cancer and physical activity: adaptive response to oxidative stress. Free Radic Biol Med 2013; 60:115-24. [PMID: 23462616 DOI: 10.1016/j.freeradbiomed.2013.02.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 02/13/2013] [Accepted: 02/13/2013] [Indexed: 11/20/2022]
Abstract
Prostate cancer is the most common form of cancer affecting men in the Western world. Its relative incidence increases exponentially with age and a steady increase is observed with extended life span. A sedentary lifestyle represents an important risk factor and a decrease in prostate cancer prevalence is associated with exercise. However, the molecular mechanisms involved in this process remain unknown. We hypothesize that reactive oxygen species generated by physical exercise are a key regulatory factor in prostate cancer prevention. Aging is correlated with increased oxidative stress (OS), which in turn provides a favorable environment for tumorigenesis. Running training is known to enhance the antioxidant defense system, reducing oxidative stress. In this context, the decrease in OS induced by exercise may delay the development of prostate cancer. This review focuses on oxidative stress-based mechanisms leading to prostate cancer sensitization to exercise, which could have some impact on the development of novel cancer therapeutic strategies.
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Affiliation(s)
- Amélie Rebillard
- EA 1274, Laboratoire Mouvement, Sport, Santé, University of Rennes 2-ENS Cachan Antenne de Bretagne, 35170 Bruz, France.
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Abstract
Epidemiological evidence continues to accumulate on the benefits of physical activity in relation to cancer risk, progression and mortality. Recent studies suggest that sedentary behavior may independently affect cancer risk; they also focus on factors that may explain associations with physical activity, including cancer risk factors and whether associations exist for precancerous lesions. Despite enormous efforts to examine associations between physical activity and cancer, the literature is hindered by inconsistent assessment of physical activity across studies, and incomplete consideration of variation of effects across population subgroups (for example, defined by body size, age or sex) or tumors subgroups (organ location, receptor status, or molecular subtype), and whether other factors explain study results. Clearly, public health recommendations for appropriate changes in activity levels are needed; unfortunately, at this time, we have no exact physical activity prescription to give to the public.
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26
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Grytli HH, Fagerland MW, Fosså SD, Taskén KA, Håheim LL. Use of β-blockers is associated with prostate cancer-specific survival in prostate cancer patients on androgen deprivation therapy. Prostate 2013; 73:250-60. [PMID: 22821802 DOI: 10.1002/pros.22564] [Citation(s) in RCA: 107] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Accepted: 06/20/2012] [Indexed: 12/15/2022]
Abstract
BACKGROUND Experimental evidence suggests a role for the β(2) -adrenergic receptor pathway in prostate cancer (PCa). We have investigated the association of β-blocker use with PCa incidence and survival in a Norwegian cohort. METHODS Data from the Oslo II study in 2000 (n = 6515) were linked with information from the Cancer Registry of Norway and Statistics Norway. PCa risk and overall- and PCa-specific mortality were analyzed using uni- and multi-variable Cox- and competing risk regression models. RESULTS At baseline, 776 men (11.9%) reported using a β-blocker. 212 men (3.3%) were diagnosed with PCa before the survey, leaving 6,303 eligible for incidence analysis. During a median follow-up of 122 months, 448 (7.1%) men were diagnosed with PCa. β-blocker use was not associated with PCa risk [hazard ratio (HR): 1.05, 95% CI: 0.79-1.40]. For all patients (n = 655; including med diagnosed before the survey), β-blocker use was not associated with PCa-specific mortality (HR: 0.55, 95% CI 0.24-1.26, P = 0.16). However, in the subgroup of men planned to receive androgen deprivation therapy (ADT), as reported to the Cancer Registry (n = 263), β-blocker use was associated with reduced PCa-specific mortality (HR: 0.14, 95% CI 0.02-0.85, P = 0.032). No effect on overall mortality was seen (HR, all patients: 0.88, 95% CI 0.56-1.38, P = 0.57). β-blocker use did not appear to affect PSA level, Gleason score, or T-stage at diagnosis; however, these variables were missing for many cases. CONCLUSIONS Our findings demonstrate a possible benefit of β-blocker use for men treated with ADT, suggesting the need for investigation in larger cohorts.
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Affiliation(s)
- Helene Hartvedt Grytli
- Department of Tumor Biology, Institute of Cancer Research, Oslo University Hospital, Radiumhospitalet, Oslo, Norway
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