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Maleki M, Fatehi V, Mohammadzadeh Z. The association between physical activity and risk of gastric cancer; an umbrella review. BMC Gastroenterol 2024; 24:261. [PMID: 39135152 PMCID: PMC11318285 DOI: 10.1186/s12876-024-03360-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 08/07/2024] [Indexed: 08/16/2024] Open
Abstract
INTRODUCTION Gastric cancer (GC), as a highly lethal malignancy, is the fourth most common malignancy and the second leading cause of cancer-related death worldwide. This study is an umbrella review of systematic reviews and meta-analyses to present an overview of the extent and reliability of the claimed association between physical activity and the likelihood of developing or dying from GC. METHOD This study was conducted following the Joanna Brigs Institute (JBI)'s methods for conducting umbrella reviews. A systematic search was performed in PubMed, Scopus, Web of Science, and ProQuest databases until July, 2024 with predefined keywords. Two independent authors assessed the Risk of Bias in included studies using the JBI critical appraisal tool for the assessment of the quality of systematic reviews and disagreements between the authors were resolved through discussion or the opinion of another author. RESULT Five systematic reviews were included in this analysis, offering a more comprehensive understanding of the inverse relationship between physical activity and gastric cancer risk. Compared to previous studies, this review provides stronger evidence that moderate-to-high levels of physical activity significantly reduce the overall risk of developing gastric cancer. CONCLUSION While a link between physical activity and reduced cancer risk is promising, further research is crucial to unravel the specific mechanisms at play and to quantify the impact of increased activity levels on cancer prevention. Based on the findings of this study, physical activity is found to be associated with a decreased risk of GC; however, the limitation of the evidence suggested a need for future studies on this topic.
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Affiliation(s)
- Mahsa Maleki
- Department of Health Information Technology, Student Research Committee, School of Management and Medical Informatics, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Vahid Fatehi
- Department of Health Information Technology, Student Research Committee, School of Management and Medical Informatics, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zeinab Mohammadzadeh
- Health Information Technology Department, School of Management and Medical Informatics, Tabriz University of Medical Sciences, Daneshgah St, Tabriz, Iran.
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Toth PP, Banach M. It is time to address the contribution of cholesterol in all apoB-containing lipoproteins to atherosclerotic cardiovascular disease. EUROPEAN HEART JOURNAL OPEN 2024; 4:oeae057. [PMID: 39165648 PMCID: PMC11335015 DOI: 10.1093/ehjopen/oeae057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 05/28/2024] [Accepted: 06/10/2024] [Indexed: 08/22/2024]
Abstract
On average, LDL particles are the most populous lipoprotein in serum under fasting conditions. For many reasons, it has been the primary target of lipid-lowering guidelines around the world. In the past 30 years, we have witnessed remarkable changes in each iteration of dyslipidaemia guidelines, with LDL-cholesterol (LDL-C) targets becoming lower and lower among patients at high and very high risk for atherosclerotic cardiovascular disease (ASCVD). The world over, goal attainment rates are low, and hence, ASCVD prevalence remains unacceptably high. Inadequate LDL-C lowering is a major issue in contemporary cardiovascular (CV) medicine. Another issue that vexes even the most astute clinician is that of 'residual risk', meaning the excess risk that remains even after LDL-C is appropriately reduced. In recent years, an important new component of residual risk has emerged: triglyceride-enriched lipoproteins or remnant lipoproteins. These precursors to LDL particles can assume outsized importance among patients with derangements in triglyceride metabolism (e.g. genetic variants, insulin resistance, and diabetes mellitus) and may be more atherogenic than LDL species. Consequently, to reduce total risk for acute CV events, the time has come to include the entire spectrum of apoB-containing lipoproteins in approaches to both risk evaluation and treatment.
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Affiliation(s)
- Peter P Toth
- Department of Preventive Cardiology, CGH Medical Center, 101 East Miller Road, Sterling, IL 61081, USA
- Cicarrone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Maciej Banach
- Cicarrone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Preventive Cardiology and Lipidology, Medical University of Lodz, 93-338 Lodz, Poland
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Kump DS. Mechanisms Underlying the Rarity of Skeletal Muscle Cancers. Int J Mol Sci 2024; 25:6480. [PMID: 38928185 PMCID: PMC11204341 DOI: 10.3390/ijms25126480] [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: 05/07/2024] [Revised: 06/04/2024] [Accepted: 06/05/2024] [Indexed: 06/28/2024] Open
Abstract
Skeletal muscle (SKM), despite comprising ~40% of body mass, rarely manifests cancer. This review explores the mechanisms that help to explain this rarity, including unique SKM architecture and function, which prohibits the development of new cancer as well as negates potential metastasis to SKM. SKM also presents a unique immune environment that may magnify the anti-tumorigenic effect. Moreover, the SKM microenvironment manifests characteristics such as decreased extracellular matrix stiffness and altered lactic acid, pH, and oxygen levels that may interfere with tumor development. SKM also secretes anti-tumorigenic myokines and other molecules. Collectively, these mechanisms help account for the rarity of SKM cancer.
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Affiliation(s)
- David S Kump
- Department of Biological Sciences, Winston-Salem State University, 601 Martin Luther King Jr. Dr., Winston-Salem, NC 27110, USA
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An H, Liu K, Shirai K, Kawasaki R, Tamakoshi A, Iso H. Physical Activity and Bladder Cancer Risk: Findings of the Japan Collaborative Cohort Study. Cancer Res Treat 2024; 56:616-623. [PMID: 37817564 PMCID: PMC11016649 DOI: 10.4143/crt.2023.962] [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: 08/23/2023] [Accepted: 10/04/2023] [Indexed: 10/12/2023] Open
Abstract
PURPOSE The association of physical activity with the risk of bladder cancer remains inconsistent among Asian populations. We aimed to examine the association in a large Japanese cohort. MATERIALS AND METHODS In a population-based prospective cohort study, a total of 50,374 Japanese adults aged 40-79 years without a history of cancer or cardiovascular disease who had information on physical activity from self-administrated questionnaires were used for analysis. We performed Cox proportional hazard models to estimate the hazard ratios (HRs) and 95% confidence intervals (CIs) for incident bladder cancer after adjusting for several potential confounders. RESULTS During the median 17.5 years of follow-up, 153 incident bladder cancers (116 men and 37 women) were identified. After the multivariable adjustment, HRs (95% CI) of bladder cancer concerning those with recreational sports participation of 1-2 hr/wk, 3-4 hr/wk, and 5 hr/wk and more were 0.67 (0.38-1.20), 0.79 (0.36-1.74), and 0.28 (0.09-0.89), respectively (p for trend=0.017). Compared with mostly sitting at the workplace, occupational physical activity of standing and walking were associated with a lower risk of bladder cancer (HR, 0.53 [95% CI, 0.32 to 0.85]). Hours of daily walking were not associated with the risk. The lower risk of bladder cancer was more evident for recreational sports (HR, 0.33 [95% CI, 0.10 to 1.00]), and for occupational standing and walking activity at work (HR, 0.57 [95% CI, 0.33 to 0.98]) among men. CONCLUSION Recreational sports participation and occupational physical activity were inversely associated with the risk of bladder cancer among Japanese, especially in men.
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Affiliation(s)
- Hang An
- Division of Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Suita, Japan
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing, China
| | - Keyang Liu
- Division of Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Suita, Japan
| | - Kokoro Shirai
- Division of Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Suita, Japan
| | - Ryo Kawasaki
- Division of Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Suita, Japan
| | - Akiko Tamakoshi
- Department of Public Health, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hiroyasu Iso
- Institute for Global Health Policy Research (iGHP), Bureau of International Health Cooperation, National Center for Global Health and Medicine, Tokyo, Japan
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Chen S, Miao Q, Liu Y, Xiao Q, Lin Y, Yang Y, Guo F. Construction and functional evaluation of oral long-acting insulin hydrogel microparticles based on physical and chemical double crosslinking. Int J Biol Macromol 2023; 253:126915. [PMID: 37730004 DOI: 10.1016/j.ijbiomac.2023.126915] [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: 07/12/2023] [Revised: 09/05/2023] [Accepted: 09/13/2023] [Indexed: 09/22/2023]
Abstract
The objective of this study was to enhance the convenience and effectiveness of diabetes treatment by developing hydrogel microparticles as an oral insulin delivery system, aiming to reduce the necessity for frequent treatments. The hydrogel microparticles were prepared with polysaccharides through a combination of physical and chemical crosslinking method, they achieved good results in insulin loading efficiency (70 %), insulin release efficiency (98 %) and sustained release time (>20 h). The effective transmembrane transport was validated using an intestinal epithelial cell model, which demonstrated a continuous hypoglycemic effect lasting from 6 to 26 h in a type 2 diabetes mouse model. Additionally, the relative bioavailability of insulin reached 30.14 ± 2.62 %, representing a significant breakthrough in the field of oral insulin delivery carriers. Furthermore, oral insulin hydrogel exhibited a substantial improvement in insulin resistance, organ damage, and diabetes-related complications stemming from hyperglycemia. These compelling findings underscore the potential of hydrogel microparticles as a cost-effective and valuable strategy for oral drug delivery in diabetes treatment.
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Affiliation(s)
- ShengQin Chen
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Department of Biology, College of Science, Shantou University, Shantou, Guangdong 515063, PR China
| | - QingYa Miao
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Department of Biology, College of Science, Shantou University, Shantou, Guangdong 515063, PR China
| | - Yang Liu
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Department of Biology, College of Science, Shantou University, Shantou, Guangdong 515063, PR China.
| | - Qiao Xiao
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Department of Biology, College of Science, Shantou University, Shantou, Guangdong 515063, PR China
| | - YuKai Lin
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Department of Biology, College of Science, Shantou University, Shantou, Guangdong 515063, PR China
| | - Yu Yang
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Department of Biology, College of Science, Shantou University, Shantou, Guangdong 515063, PR China
| | - FengBiao Guo
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Department of Biology, College of Science, Shantou University, Shantou, Guangdong 515063, PR China
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Noakes TD, Prins PJ, Volek JS, D’Agostino DP, Koutnik AP. Low carbohydrate high fat ketogenic diets on the exercise crossover point and glucose homeostasis. Front Physiol 2023; 14:1150265. [PMID: 37057184 PMCID: PMC10086139 DOI: 10.3389/fphys.2023.1150265] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
In exercise science, the crossover effect denotes that fat oxidation is the primary fuel at rest and during low-intensity exercise with a shift towards an increased reliance on carbohydrate oxidation at moderate to high exercise intensities. This model makes four predictions: First, >50% of energy comes from carbohydrate oxidation at ≥60% of maximum oxygen consumption (VO2max), termed the crossover point. Second, each individual has a maximum fat oxidation capacity (FATMAX) at an exercise intensity lower than the crossover point. FATMAX values are typically 0.3–0.6 g/min. Third, fat oxidation is minimized during exercise ≥85%VO2max, making carbohydrates the predominant energetic substrate during high-intensity exercise, especially at >85%VO2max. Fourth, high-carbohydrate low-fat (HCLF) diets will produce superior exercise performances via maximizing pre-exercise storage of this predominant exercise substrate. In a series of recent publications evaluating the metabolic and performance effects of low-carbohydrate high-fat (LCHF/ketogenic) diet adaptations during exercise of different intensities, we provide findings that challenge this model and these four predictions. First, we show that adaptation to the LCHF diet shifts the crossover point to a higher %VO2max (>80%VO2max) than previously reported. Second, substantially higher FATMAX values (>1.5 g/min) can be measured in athletes adapted to the LCHF diet. Third, endurance athletes exercising at >85%VO2max, whilst performing 6 × 800 m running intervals, measured the highest rates of fat oxidation yet reported in humans. Peak fat oxidation rates measured at 86.4 ± 6.2%VO2max were 1.58 ± 0.33 g/min with 30% of subjects achieving >1.85 g/min. These studies challenge the prevailing doctrine that carbohydrates are the predominant oxidized fuel during high-intensity exercise. We recently found that 30% of middle-aged competitive athletes presented with pre-diabetic glycemic values while on an HCLF diet, which was reversed on LCHF. We speculate that these rapid changes between diet, insulin, glucose homeostasis, and fat oxidation might be linked by diet-induced changes in mitochondrial function and insulin action. Together, we demonstrate evidence that challenges the current crossover concept and demonstrate evidence that a LCHF diet may also reverse features of pre-diabetes and future metabolic disease risk, demonstrating the impact of dietary choice has extended beyond physical performance even in athletic populations.
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Affiliation(s)
- T. D. Noakes
- Department of Medical and Wellness Science, Cape Peninsula University of Technology, Cape Town, South Africa
| | - P. J. Prins
- Department of Exercise Science, Grove City College, Grove City, PA, United States
| | - J. S. Volek
- Department of Human Sciences, The Ohio State University, Columbus, OH, United States
| | - D. P. D’Agostino
- Department of Molecular Pharmacology and Physiology, University of South Florida, Tampa, FL, United States
- Human Healthspan, Resilience and Performance, Institute of Human and Machine Cognition, Pensacola, FL, United States
| | - A. P. Koutnik
- Human Healthspan, Resilience and Performance, Institute of Human and Machine Cognition, Pensacola, FL, United States
- *Correspondence: A. P. Koutnik,
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Hao H, Chen Y, Xiaojuan J, Siqi Z, Hailiang C, Xiaoxing S, Qikai W, Mingquan X, Jiangzhou F, Hongfeng G. The Association Between METS-IR and Serum Ferritin Level in United States Female: A Cross-Sectional Study Based on NHANES. Front Med (Lausanne) 2022; 9:925344. [PMID: 35836938 PMCID: PMC9273928 DOI: 10.3389/fmed.2022.925344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 06/07/2022] [Indexed: 11/30/2022] Open
Abstract
Aim The aim of this study was to investigate the association between the metabolic score for insulin resistance (METS-IR) and serum ferritin in females from the United States. Methods We conducted a cross-sectional study with 4,182 participants from the National Health and Nutrition Examination Survey (NHANES). We used METS-IR and serum ferritin as the independent and dependent variables in this study and investigated the relationship by using multiple linear regression and verified the non-linear relationship with a smooth curve fit and threshold effect model. Results There was a positive relationship between METS-IR and serum ferritin, with an effect value of (β = 0.29, 95% CI: 0.14–0.44) in a fully adjusted model adjusted for potential confounders. This positive correlation became more significant as METS-IR increased (p for trend < 0.001). Subsequent subgroup analyses showed that sensitive cohorts were those aged ≥40 years, black, and with a body mass index (BMI) < 24.9 kg/m2. In a smoothed curve fit analysis, the correlation between METS-IR and serum ferritin was a straight linear relationship in all participants included in this study, but when stratified by age, race, and BMI, this positive correlation in the participants who were aged ≥40 years old, other race, and had a BMI < 24.9 kg/m2 was non-linear. Conclusions There was a positive association between METS-IR and serum ferritin in United States females, and this positive association was more pronounced in participants aged ≥40 years, black race and BMI < 24.9 kg/m2. This positive association was non-linear in the subgroups aged ≥40 years, white race and BMI < 24.9 kg/m2, with inflection points for METS-IR of 69.97, 67.84 and 35.84 in these respective subgroups.
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Affiliation(s)
- Han Hao
- Department of Hematology, Anhui Medical University Affiliated to Bozhou People's Hospital, Bozhou, China
| | - Yan Chen
- Department of General Practice, Wuhu City Second People‘s Hospital, Wuhu, China
| | - Ji Xiaojuan
- Department of Hematology, Anhui Medical University Affiliated to Bozhou People's Hospital, Bozhou, China
| | - Zhang Siqi
- Department of Hematology, Anhui Medical University Affiliated to Bozhou People's Hospital, Bozhou, China
| | - Chu Hailiang
- Department of Hematology, Anhui Medical University Affiliated to Bozhou People's Hospital, Bozhou, China
| | - Sun Xiaoxing
- Department of Hematology, Anhui Medical University Affiliated to Bozhou People's Hospital, Bozhou, China
| | - Wang Qikai
- Department of Hematology, Anhui Medical University Affiliated to Bozhou People's Hospital, Bozhou, China
| | - Xing Mingquan
- Department of Hematology, Anhui Medical University Affiliated to Bozhou People's Hospital, Bozhou, China
| | - Feng Jiangzhou
- Department of Hematology, Anhui Medical University Affiliated to Bozhou People's Hospital, Bozhou, China
- *Correspondence: Feng Jiangzhou
| | - Ge Hongfeng
- Department of Hematology, Anhui Medical University Affiliated to Bozhou People's Hospital, Bozhou, China
- Ge Hongfeng
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Wang J, He L, Yang N, Li Z, Xu L, Li W, Ping F, Zhang H, Li Y. Occupational and domestic physical activity and diabetes risk in adults: Results from a long-term follow-up cohort. Front Endocrinol (Lausanne) 2022; 13:1054046. [PMID: 36568093 PMCID: PMC9780271 DOI: 10.3389/fendo.2022.1054046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 11/22/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Physical activity (PA) has been associated with decreased incidence of diabetes. However, few studies have evaluated the influence of occupational and domestic PA on the risk of diabetes with a long-term follow-up. We aimed to examine the association between occupational and domestic PA and the risk of diabetes in a long-term prospective cohort of Chinese adults. METHODS A total of 10,343 adults who were followed up in the China Health and Nutrition Survey from 1997 to 2015 were included in our analysis. Occupational and domestical PA were collected with detailed seven-day data and were converted into metabolic equivalents values. Total PA included occupational, domestic, transportation, and leisure time PA. Diabetes cases were identified by self-reported doctor/health professional diagnosis of diabetes, fasting blood glucose ≥7.0 mmol/L, and glycosylated hemoglobin (HbA1c) ≥6.5%. Cox proportional hazards models were used to calculate hazard ratios (HR) and 95% confidence intervals (CI). RESULTS During up to 18 years of follow-up (median 10 years), there were 575 diabetes cases documented. Occupational PA accounted for the majority of total PA (68%) in Chinese population, followed by domestic PA (25%). With adjustments for possible covariates, the highest quartiles of total PA (HR, 0.728 [95% CI, 0.570-0.929]) and occupational PA (HR, 0.765 [95% CI, 0.596-0.982]) were significantly associated with a lower risk of diabetes compared with lowest quartiles. The association between domestic PA and the risk of diabetes was insignificant (P >0.05). CONCLUSION Higher levels of occupational PA were associated with a decreased risk of diabetes risk in the Chinese population. Domestic PA was not associated with the incidence of diabetes.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Yuxiu Li
- *Correspondence: Huabing Zhang, ; Yuxiu Li,
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