1
|
Liu T, Liu CA, Zhang QS, Zhang Q, Wang YM, Song MM, Lin SQ, Deng L, Wu SL, Shi HP. Early-onset and later-onset cancer: trends, risk factors, and prevention in Northern China. SCIENCE CHINA. LIFE SCIENCES 2024; 67:1928-1940. [PMID: 38809499 DOI: 10.1007/s11427-023-2523-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 12/07/2023] [Indexed: 05/30/2024]
Abstract
The characteristics of early-onset (onset age <50 years) and later-onset (onset age ≽ 50 years) cancers differ significantly. Identifying novel risk factors for both types of cancer is crucial for increasing awareness of cancer prevention and for reducing its burden. This study aimed to analyze the trends in incidence and risk factors for early-onset and late-onset cancers. We conducted a prospective study by drawing data from the Kailuan Study. This study included 6,741 participants with cancer (624 with early-onset cancer and 6,117 with later-onset cancer) and 6,780 matched controls among the 186,249 participants who underwent Kailuan health examinations from 2006 to 2019. The primary outcomes were cancer incidence rates, and associated risk factors for early- and later-onset cancer. Weighted Cox regression was used to calculate hazard ratios and 95% confidence intervals of each exposure factor for early- and later-onset cancer by cancer type. Population-attributable risk proportions were used to estimate the number of cases that could be prevented by eliminating a risk factor from the population. Except for liver cancer, incidence rates for nearly all types of cancer increased during the study period. Smoking, alcohol consumption, lipid metabolism disorders, hypertension, diabetes mellitus, fatty liver, and inflammation were associated with a significantly increased risk of cancer at multiple sites, but risk factors for cancer incidence differed by site. Smoking, alcohol consumption, inflammation, and hypertension were the major contributors to preventable cancer. The incidence of several different types of cancer, including early-onset cancer, is increasing in northeastern China. Differences in risk factors between early-onset and later-onset malignancies may contribute to the divergence in the observed changes in incidence trends between these two specific types of cancer.
Collapse
Affiliation(s)
- Tong Liu
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
- Key Laboratory of Cancer FSMP for State Market Regulation, Beijing, 100038, China
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, 100038, China
| | - Chen-An Liu
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
- Key Laboratory of Cancer FSMP for State Market Regulation, Beijing, 100038, China
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, 100038, China
| | - Qing-Song Zhang
- Department of General Surgery, Kailuan General Hospital, Tangshan, 063000, China
| | - Qi Zhang
- Department of Genetics, Yale School of Medicine, New Haven, 06510, USA
| | - Yi-Ming Wang
- Department of Hepatobiliary Surgery, Kailuan General Hospital, Tangshan, 063000, China
| | - Meng-Meng Song
- Cardiovascular Research Institute, University of California, San Francisco, 94158, USA
| | - Shi-Qi Lin
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
- Key Laboratory of Cancer FSMP for State Market Regulation, Beijing, 100038, China
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, 100038, China
| | - Li Deng
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China.
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.
- Key Laboratory of Cancer FSMP for State Market Regulation, Beijing, 100038, China.
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, 100038, China.
| | - Shou-Ling Wu
- Department of Cardiology, Kailuan General Hospital, Tangshan, 063000, China.
| | - Han-Ping Shi
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China.
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.
- Key Laboratory of Cancer FSMP for State Market Regulation, Beijing, 100038, China.
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, 100038, China.
| |
Collapse
|
2
|
Tea consumption and gastric cancer: a pooled analysis from the Stomach cancer Pooling (StoP) Project consortium. Br J Cancer 2022; 127:726-734. [PMID: 35610368 PMCID: PMC9381730 DOI: 10.1038/s41416-022-01856-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 04/19/2022] [Accepted: 05/10/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Evidence from epidemiological studies on the role of tea drinking in gastric cancer risk remains inconsistent. We aimed to investigate and quantify the relationship between tea consumption and gastric cancer in the Stomach cancer Pooling (StoP) Project consortium. METHODS A total of 9438 cases and 20,451 controls from 22 studies worldwide were included. Odds ratios (ORs) and the corresponding 95% confidence intervals (CIs) of gastric cancer for regular versus non-regular tea drinkers were estimated by one and two-stage modelling analyses, including terms for sex, age and the main recognised risk factors for gastric cancer. RESULTS Compared to non-regular drinkers, the estimated adjusted pooled OR for regular tea drinkers was 0.91 (95% CI: 0.85-0.97). When the amount of tea consumed was considered, the OR for consumption of 1-2 cups/day was 1.01 (95% CI: 0.94-1.09) and for >3 cups/day was 0.91 (95% CI: 0.80-1.03). Stronger inverse associations emerged among regular drinkers in China and Japan (OR: 0.67, 95% CI: 0.49-0.91) where green tea is consumed, in subjects with H. pylori infection (OR: 0.68, 95% CI: 0.58-0.80), and for gastric cardia cancer (OR: 0.64, 95% CI: 0.49-0.84). CONCLUSION Our results indicate a weak inverse association between tea consumption and gastric cancer.
Collapse
|
3
|
Filippini T, Malavolti M, Borrelli F, Izzo AA, Fairweather-Tait SJ, Horneber M, Vinceti M. Green tea (Camellia sinensis) for the prevention of cancer. Cochrane Database Syst Rev 2020; 3:CD005004. [PMID: 32118296 PMCID: PMC7059963 DOI: 10.1002/14651858.cd005004.pub3] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND This review is an update of a previously published review in the Cochrane Database of Systematic Reviews (2009, Issue 3).Tea is one of the most commonly consumed beverages worldwide. Teas from the plant Camellia sinensis can be grouped into green, black and oolong tea, and drinking habits vary cross-culturally. C sinensis contains polyphenols, one subgroup being catechins. Catechins are powerful antioxidants, and laboratory studies have suggested that these compounds may inhibit cancer cell proliferation. Some experimental and nonexperimental epidemiological studies have suggested that green tea may have cancer-preventative effects. OBJECTIVES To assess possible associations between green tea consumption and the risk of cancer incidence and mortality as primary outcomes, and safety data and quality of life as secondary outcomes. SEARCH METHODS We searched eligible studies up to January 2019 in CENTRAL, MEDLINE, Embase, ClinicalTrials.gov, and reference lists of previous reviews and included studies. SELECTION CRITERIA We included all epidemiological studies, experimental (i.e. randomised controlled trials (RCTs)) and nonexperimental (non-randomised studies, i.e. observational studies with both cohort and case-control design) that investigated the association of green tea consumption with cancer risk or quality of life, or both. DATA COLLECTION AND ANALYSIS Two or more review authors independently applied the study criteria, extracted data and assessed methodological quality of studies. We summarised the results according to diagnosis of cancer type. MAIN RESULTS In this review update, we included in total 142 completed studies (11 experimental and 131 nonexperimental) and two ongoing studies. This is an additional 10 experimental and 85 nonexperimental studies from those included in the previous version of the review. Eleven experimental studies allocated a total of 1795 participants to either green tea extract or placebo, all demonstrating an overall high methodological quality based on 'Risk of bias' assessment. For incident prostate cancer, the summary risk ratio (RR) in the green tea-supplemented participants was 0.50 (95% confidence interval (CI) 0.18 to 1.36), based on three studies and involving 201 participants (low-certainty evidence). The summary RR for gynaecological cancer was 1.50 (95% CI 0.41 to 5.48; 2 studies, 1157 participants; low-certainty evidence). No evidence of effect of non-melanoma skin cancer emerged (summary RR 1.00, 95% CI 0.06 to 15.92; 1 study, 1075 participants; low-certainty evidence). In addition, adverse effects of green tea extract intake were reported, including gastrointestinal disorders, elevation of liver enzymes, and, more rarely, insomnia, raised blood pressure and skin/subcutaneous reactions. Consumption of green tea extracts induced a slight improvement in quality of life, compared with placebo, based on three experimental studies. In nonexperimental studies, we included over 1,100,000 participants from 46 cohort studies and 85 case-control studies, which were on average of intermediate to high methodological quality based on Newcastle-Ottawa Scale 'Risk of bias' assessment. When comparing the highest intake of green tea with the lowest, we found a lower overall cancer incidence (summary RR 0.83, 95% CI 0.65 to 1.07), based on three studies, involving 52,479 participants (low-certainty evidence). Conversely, we found no association between green tea consumption and cancer-related mortality (summary RR 0.99, 95% CI 0.91 to 1.07), based on eight studies and 504,366 participants (low-certainty evidence). For most of the site-specific cancers we observed a decreased RR in the highest category of green tea consumption compared with the lowest one. After stratifying the analysis according to study design, we found strongly conflicting results for some cancer sites: oesophageal, prostate and urinary tract cancer, and leukaemia showed an increased RR in cohort studies and a decreased RR or no difference in case-control studies. AUTHORS' CONCLUSIONS Overall, findings from experimental and nonexperimental epidemiological studies yielded inconsistent results, thus providing limited evidence for the beneficial effect of green tea consumption on the overall risk of cancer or on specific cancer sites. Some evidence of a beneficial effect of green tea at some cancer sites emerged from the RCTs and from case-control studies, but their methodological limitations, such as the low number and size of the studies, and the inconsistencies with the results of cohort studies, limit the interpretability of the RR estimates. The studies also indicated the occurrence of several side effects associated with high intakes of green tea. In addition, the majority of included studies were carried out in Asian populations characterised by a high intake of green tea, thus limiting the generalisability of the findings to other populations. Well conducted and adequately powered RCTs would be needed to draw conclusions on the possible beneficial effects of green tea consumption on cancer risk.
Collapse
Affiliation(s)
- Tommaso Filippini
- University of Modena and Reggio Emilia, Research Center in Environmental, Nutritional and Genetic Epidemiology (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, Via Campi 287, Modena, Italy, 41125
| | - Marcella Malavolti
- University of Modena and Reggio Emilia, Research Center in Environmental, Nutritional and Genetic Epidemiology (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, Via Campi 287, Modena, Italy, 41125
| | - Francesca Borrelli
- University of Naples 'Federico II', Department of Pharmacy, School of Medicine and Surgery, Via D Montesano 49, Naples, Italy, 80131
| | - Angelo A Izzo
- University of Naples 'Federico II', Department of Pharmacy, School of Medicine and Surgery, Via D Montesano 49, Naples, Italy, 80131
| | | | - Markus Horneber
- Paracelsus Medical University, Klinikum Nuremberg, Department of Internal Medicine, Division of Oncology and Hematology, Prof.-Ernst-Nathan-Str. 1, Nuremberg, Germany, D-90419
| | - Marco Vinceti
- University of Modena and Reggio Emilia, Research Center in Environmental, Nutritional and Genetic Epidemiology (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, Via Campi 287, Modena, Italy, 41125
- Boston University School of Public Health, Department of Epidemiology, 715 Albany Street, Boston, USA, MA 02118
| |
Collapse
|
4
|
|
5
|
Li X, Yu C, Guo Y, Bian Z, Shen Z, Yang L, Chen Y, Wei Y, Zhang H, Qiu Z, Chen J, Chen F, Chen Z, Lv J, Li L. Association between tea consumption and risk of cancer: a prospective cohort study of 0.5 million Chinese adults. Eur J Epidemiol 2019; 34:753-763. [PMID: 31152367 PMCID: PMC6602977 DOI: 10.1007/s10654-019-00530-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 05/24/2019] [Indexed: 12/14/2022]
Abstract
Current experimental and epidemiological studies provide inconsistent evidence toward the association between tea consumption and cancer incidence. We investigated whether tea consumption was associated with the incidence of all cancers and six leading types of cancer (lung cancer, stomach cancer, colorectal cancer, liver cancer, female breast cancer and cervix uteri cancer) among 455,981 participants aged 30-79 years in the prospective cohort China Kadoorie Biobank. Tea consumption was assessed at baseline (2004-2008) with an interviewer-administered questionnaire. Cancer cases were identified by linkage to the national health insurance system. Cox proportional hazard regression models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs). In the present population, daily tea consumers were more likely to be current smokers and daily alcohol consumers. 22,652 incident cancers occurred during 10.1 years follow-up (5.04 cases/1000 person-years). When we restricted analyses to non-smokers and non-excessive alcohol consumers to minimize confounding, tea consumption was not associated with all cancers (daily consumers who added tea leaves > 4.0 g/day vs. less-than-weekly consumers: HR, 1.03; 95%CI, 0.93-1.13), lung cancer (HR, 1.08; CI, 0.84-1.40), colorectal cancer (HR, 1.08; CI, 0.81-1.45) and liver cancer (HR, 1.08; CI, 0.75-1.55), yet might be associated with increased risk of stomach cancer (HR, 1.46; CI, 1.07-1.99). In both less-than-daily and daily tea consumers, all cancer risk increased with the amount of tobacco smoked or alcohol consumed. Our findings suggest tea consumption may not provide preventive effect against cancer incidence.
Collapse
Affiliation(s)
- Xinyi Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Canqing Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China
| | - Yu Guo
- Chinese Academy of Medical Sciences, Beijing, China
| | - Zheng Bian
- Chinese Academy of Medical Sciences, Beijing, China
| | - Zewei Shen
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China
| | - Ling Yang
- Clinical Trial Service Unit and Epidemiological Studies Unit (CTSU), Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Yiping Chen
- Clinical Trial Service Unit and Epidemiological Studies Unit (CTSU), Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Yongyue Wei
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Hao Zhang
- Liuyang Center for Disease Control and Prevention, Liuyang, Hunan, China
| | - Zhe Qiu
- Liuyang Center for Disease Control and Prevention, Liuyang, Hunan, China
| | - Junshi Chen
- China National Center for Food Safety Risk Assessment, Beijing, China
| | - Feng Chen
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Zhengming Chen
- Clinical Trial Service Unit and Epidemiological Studies Unit (CTSU), Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Jun Lv
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China.
- Key Laboratory of Molecular Cardiovascular Sciences (Peking University), Ministry of Education, Beijing, China.
- Peking University Institute of Environmental Medicine, Beijing, China.
| | - Liming Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China.
| |
Collapse
|
6
|
Lin Y, Wu C, Yan W, Guo S, Lin S, Liu B. Sociodemographic and Lifestyle Factors in Relation to Gastric Cancer in a High-Risk Region of China: A Matched Case-Control Study. Nutr Cancer 2019; 72:421-430. [PMID: 31306032 DOI: 10.1080/01635581.2019.1638425] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Objectives: To explore the role of sociodemographic and lifestyle factors in the development of gastric cancer in a high-risk region of China.Methods: In a case-control study, all newly diagnosed patients with gastric cancer were compared with healthy controls matched (1:1) by sex, age (±3 years), and place of residence during 2013-2017.Results: A total of 622 gastric cancer and 622 healthy controls were included. Larger household size (>4 family members) appeared to decrease gastric cancer risk for Helicobacter pylori-negative ones (odd ratio = 0.43, 95% CI = 0.26-0.70). Similarly, longer refrigerator ownership was associated with a 67% decreased risk in H. pylori-negative group (95% CI = 0.15-0.77). Participants with a family history of gastric cancer had nearly fivefold higher risk (odd ratio = 4.88, 95% CI = 2.49-9.55). Smoking attributed to 83% increased risk (odd ratio = 1.83, 95% CI = 1.19-2.80). Tea consumption dramatically decreased risk in whole study population (odd ratio = 0.28, 95% CI = 0.17-0.45).Conclusions: In summary, family history, smoking, H. pylori-related chronic atrophic gastritis, and H. pylori infection were positively associated with gastric cancer. Whereas, tea consumption and refrigerator use negatively associated with gastric cancer and could be promoted to reduce gastric cancer rate in high-risk populations, especially in the developing regions.
Collapse
Affiliation(s)
- Yulan Lin
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, China
| | - Chuancheng Wu
- Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory of Environment Factors and Cancer, Fujian Medical University, Fuzhou, China
| | - Wei Yan
- Fujian Xianyou Health and Family Planning Authority, Putian, China
| | | | - Su Lin
- Liver Research Center, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Baoying Liu
- Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory of Environment Factors and Cancer, Fujian Medical University, Fuzhou, China
| |
Collapse
|
7
|
Chen P, Lin Y, Zheng K, Liu B, Wu C, Yan W, Cai Y. Risk Factors of Gastric Cancer in High-Risk Region of China: A Population-Based Case-control Study. Asian Pac J Cancer Prev 2019; 20:775-781. [PMID: 30909684 PMCID: PMC6825772 DOI: 10.31557/apjcp.2019.20.3.775] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background: The reason for the high incidence of gastric cancer (GC) in Xianyou County of China was largely
unknown. We aimed to explore the potential sociodemographic risk factors and their associations to GC. Methods:
A population-based case-control study was conducted during March 2013 and April 2016 in Xianyou County. All
newly diagnosed patients of GC were recruited as cases, while controls were selected by matching for cases’ sex, age
(± 3 years) and the place of residence. Results: A total of 523 GC cases and 523 matched healthy controls were included
in the final analysis with mean age of 66.27±8.81 years for cases and 66.31±8.83 years for controls, respectively.
Participants with low socioeconomic status were observed with higher GC risk compared to those in high socioeconomic
status (adjusted OR=2.10, 95% CI: 1.13-3.89). Compared to those regularly drink green tea, patients did not have this
dietary habit had nearly 3-fold increased GC risk (adjusted OR=2.91, 95% CI: 1.38-6.13). Other dietary habit, including
consumption of hard food, omission of breakfast, consumption of pickled vegetables 30 years ago, overeating were all
associated with increased risk of GC. Interaction effect were found. Patients in low socioeconomic status and skipped
breakfast had 10-fold higher risk of GC compared to reference group in high socioeconomic status and eat breakfast
regularly (OR=10.71, 95% CI: 5.19-22.10). Furthermore, patients in low socioeconomic status and consumed pickled
vegetable 30 years ago had 6-fold higher risk of GC compared to those in high socioeconomic status but did not intake
pickled vegetables 30 years ago (OR=6.11, 95% CI: 3.87-9.66). Conclusion: High incidence of GC risk in Xianyou
County might be partly attributed to various sociodemographic factors. Specific prevention effort could be target on
population in low socioeconomic status combined with habit of breakfast omission or intake of pickled vegetables.
Collapse
Affiliation(s)
- Ping Chen
- School of Public Health, Fujian Medical University, Fuzhou, China. ,
| | - Yulan Lin
- School of Public Health, Fujian Medical University, Fuzhou, China. ,
| | - Kuicheng Zheng
- Fujian Center for Disease Control and Prevention, Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou, China
| | - Baoying Liu
- School of Public Health, Fujian Medical University, Fuzhou, China. ,
| | - Chuancheng Wu
- School of Public Health, Fujian Medical University, Fuzhou, China. ,
| | - Wei Yan
- Fujian Xianyou Health and Family Planning Authority, Putian, China
| | | |
Collapse
|
8
|
Yuan X, Huang X, Wang B, Huang YX, Zhang YY, Tang Y, Yang JY, Chen Q, Jian D, Xie HF, Shi W, Li J. Relationship between rosacea and dietary factors: A multicenter retrospective case-control survey. J Dermatol 2019; 46:219-225. [PMID: 30656725 DOI: 10.1111/1346-8138.14771] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 12/04/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Xin Yuan
- Department of Dermatology; Xiangya Hospital; Central South University; Changsha China
| | - Xin Huang
- Medical School of Hunan Normal University; Changsha China
| | - Ben Wang
- Department of Dermatology; Xiangya Hospital; Central South University; Changsha China
| | - Yin-xue Huang
- Department of Dermatology; Xiangya Hospital; Central South University; Changsha China
| | - Yi-ya Zhang
- Department of Dermatology; Xiangya Hospital; Central South University; Changsha China
| | - Yan Tang
- Department of Dermatology; Xiangya Hospital; Central South University; Changsha China
| | - Jin-yan Yang
- The Second Affiliated Hospital of Xinjiang Medical University; Urumqi China
| | - Qi Chen
- Department of Dermatology; Xiangya Hospital; Central South University; Changsha China
| | - Dan Jian
- Department of Dermatology; Xiangya Hospital; Central South University; Changsha China
| | - Hong-fu Xie
- Department of Dermatology; Xiangya Hospital; Central South University; Changsha China
| | - Wei Shi
- Department of Dermatology; Xiangya Hospital; Central South University; Changsha China
| | - Ji Li
- Department of Dermatology; Xiangya Hospital; Central South University; Changsha China
| |
Collapse
|
9
|
Association between green tea intake and risk of gastric cancer: a systematic review and dose-response meta-analysis of observational studies. Public Health Nutr 2017; 20:3183-3192. [PMID: 28980522 DOI: 10.1017/s1368980017002208] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To examine and quantify the potential dose-response relationship between green tea intake and the risk of gastric cancer. DESIGN We searched PubMed, EMBASE, Web of Science, CBM, CNKI and VIP up to December 2015 without language restrictions. SETTING A systematic review and dose-response meta-analysis of observational studies. SUBJECTS Five cohort studies and eight case-control studies. RESULTS Compared with the lowest level of green tea intake, the pooled relative risk (95 % CI) of gastric cancer was 1·05 (0·90, 1·21, I 2=20·3 %) for the cohort studies and the pooled OR (95 % CI) was 0·84 (0·74, 0·95, I 2=48·3 %) for the case-control studies. The pooled relative risk of gastric cancer was 0·79 (0·63, 0·97, I 2=63·8 %) for intake of 6 cups green tea/d, 0·59 (0·42, 0·82, I 2=1·0 %) for 25 years of green tea intake and 7·60 (1·67, 34·60, I 2=86·5 %) for drinking very hot green tea. CONCLUSIONS Drinking green tea has a certain preventive effect on reducing the risk of gastric cancer, particularly for long-term and high-dose consumption. Drinking too high-temperature green tea may increase the risk of gastric cancer, but it is still unclear whether high-temperature green tea is a risk factor for gastric cancer. Further studies should be performed to obtain more detailed results, including other gastric cancer risk factors such as smoking and alcohol consumption and the dose of the effective components in green tea, to provide more reliable evidence-based medical references for the relationship between green tea and gastric cancer.
Collapse
|
10
|
Oz HS. Chronic Inflammatory Diseases and Green Tea Polyphenols. Nutrients 2017; 9:nu9060561. [PMID: 28587181 PMCID: PMC5490540 DOI: 10.3390/nu9060561] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 05/27/2017] [Accepted: 05/29/2017] [Indexed: 12/17/2022] Open
Abstract
Chronic inflammatory diseases affect millions of people globally and the incidence rate is on the rise. While inflammation contributes to the tissue healing process, chronic inflammation can lead to life-long debilitation and loss of tissue function and organ failure. Chronic inflammatory diseases include hepatic, gastrointestinal and neurodegenerative complications which can lead to malignancy. Despite the millennial advancements in diagnostic and therapeutic modalities, there remains no effective cure for patients who suffer from inflammatory diseases. Therefore, patients seek alternatives and complementary agents as adjunct therapies to relieve symptoms and possibly to prevent consequences of inflammation. It is well known that green tea polyphenols (GrTPs) are potent antioxidants with important roles in regulating vital signaling pathways. These comprise transcription nuclear factor-kappa B mediated I kappa B kinase complex pathways, programmed cell death pathways like caspases and B-cell lymphoma-2 and intervention with the surge of inflammatory markers like cytokines and production ofcyclooxygenase-2. This paper concisely reviews relevant investigations regarding protective effects of GrTPs and some reported adverse effects, as well as possible applications for GrTPs in the treatment of chronic and inflammatory complications.
Collapse
Affiliation(s)
- Helieh S Oz
- Department of Physiology, Internal Medicine, College of Medicine, University of Kentucky Medical Center, Lexington, KY 40536-0298, USA.
| |
Collapse
|
11
|
|
12
|
Kooti W, Servatyari K, Behzadifar M, Asadi-Samani M, Sadeghi F, Nouri B, Zare Marzouni H. Effective Medicinal Plant in Cancer Treatment, Part 2: Review Study. J Evid Based Complementary Altern Med 2017; 22:982-995. [PMID: 28359161 PMCID: PMC5871268 DOI: 10.1177/2156587217696927] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Cancer is the second cause of death after cardiovascular diseases. With due attention to rapid progress in the phytochemical study of plants, they are becoming popular because of their anticancer effects. The aim of this study was to investigate the effective medicinal plants in the treatment of cancer and study their mechanism of action. In order to gather information the keywords “traditional medicine,” “plant compounds,” “medicinal plant,” “medicinal herb,” “toxicity,” “anticancer effect,” “cell line,” and “treatment” were searched in international databases such as ScienceDirect, PubMed, and Scopus and national databases such as Magiran, Sid, and Iranmedex, and a total of 228 articles were collected. In this phase, 49 nonrelevant articles were excluded. Enhancement P53 protein expression, reducing the expression of proteins P27, P21, NFκB expression and induction of apoptosis, inhibition of the PI3K/Akt pathway, and reduction of the level of acid phosphatase and lipid peroxidation are the most effective mechanisms of herbal plants that can inhibit cell cycle and proliferation. Common treatments such as radiotherapy and chemotherapy can cause some complications. According to results of this study, herbal extracts have antioxidant compounds that can induce apoptosis and inhibit cell proliferation by the investigated mechanisms.
Collapse
Affiliation(s)
- Wesam Kooti
- 1 Student Research Committee, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Karo Servatyari
- 1 Student Research Committee, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Masoud Behzadifar
- 2 Student of Health Policy, Health Management and Economics Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Majid Asadi-Samani
- 3 Student Research Committee, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Fatemeh Sadeghi
- 1 Student Research Committee, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Bijan Nouri
- 4 Social Determinants of Health Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Hadi Zare Marzouni
- 5 Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| |
Collapse
|